WorldWideScience

Sample records for 37-year whole-ecosystem experiment

  1. Reconciling the role of terrestrial leaves in pond food webs: a whole-ecosystem experiment.

    Science.gov (United States)

    Holgerson, Meredith A; Post, David M; Skelly, David K

    2016-07-01

    Terrestrial carbon and nutrients can subsidize the detrital pool of freshwater ecosystems; yet, the importance of terrestrial subsidies to lake and pond food webs is uncertain and debated. Terrestrial detritus is expected to have the greatest impact on food webs when water bodies are small and shallow with low levels of incident light. Temporary forested ponds fit this description and are often assumed to have a leaf detritus-based food web, but this has not been quantified. In a whole-ecosystem experiment, we traced the flow of isotopically enriched leaf litter to primary producers and consumers in a small, forested pond. We found that terrestrial leaves provided nutrients to algae, offering an indirect pathway in which leaf litter can enter the food web. Terrestrial leaves were also consumed directly, and larval caddisfly (Limnephilus sp.) shredders likely mobilized leaf nutrients to other consumers, a process overlooked in many previous small-scale experiments that did not incorporate shredders. Unexpectedly, most consumers relied heavily upon algal food pathways despite low light and net heterotrophic conditions. Overall, our study highlights the interconnectedness of algal and leaf litter pathways in small pond food webs, and emphasizes that algal pathways are prevalent and important even in small, shaded ponds with high loads of terrestrial leaf litter.

  2. The Experimental Lakes Area: Over 45 Years of Whole Ecosystem Monitoring and Manipulation Experiments and a Focus on the Future

    Science.gov (United States)

    Emmerton, C. A.

    2015-12-01

    The IISD Experimental Lakes Area is a unique facility which has existed since 1968 and consists of 58 lakes and their watersheds set aside for research purposes. The IISD-ELA also boasts an on-site water chemistry lab, accommodations and facilities for up to 60 personnel. Since its inception in 1968 over 50 whole ecosystem experiments have been conducted at the ELA including eutrophication, acidification of lakes, environmental mercury fates, hydro-electric reservoir impacts and much more. The recent partnership between IISD and ELA has allowed ELA to refocus on freshwater research and policy development in a time where the preservation of the earth's most precious resource is of the utmost concern. In addition to water quality monitoring, the ELA is also focused on autotrophic ecology, zooplankton community structures, fish population and behaviour and food-web interactions. Monitoring all of these disciplines and their inter-relationships gives the research facility a unique perspective and along with the long term dataset stretching back to 1968 the ELA can look at historical records to monitor long term changes in the environment.

  3. Attaining Whole-Ecosystem Warming Using Air and Deep Soil Heating Methods with an Elevated CO2 Atmosphere

    OpenAIRE

    Hanson, Paul J.; Riggs, Jeffery S.; Nettles, W. Robert; Phillips, Jana R.; Krassovski, Misha B.; Hook, Leslie A.; Gu, Lianhong; Richardson, Andrew D.; Aubrecht, Donald M.; Ricciuto, Daniel M.; Warren, Jeffrey M.; Barbier, Charlotte

    2016-01-01

    This paper describes the operational methods to achieve and measure both deep soil heating (0–3 m) and whole-ecosystem warming (WEW) appropriate to the scale of tall-stature, high-carbon, boreal forest peatlands. The methods were developed to allow scientists to provide a plausible set of ecosystem warming scenarios within which immediate and longer term (one decade) responses of organisms (microbes to trees) and ecosystem functions (carbon, water and nutrient cycles) could be me...

  4. Nitrogen processing in a tidal freshwater marsh: a whole ecosystem 15N labeling study

    DEFF Research Database (Denmark)

    Gribsholt, B.; Boschker, H.T.S.; Struyf, E.

    2005-01-01

    , with nitrification accounting for 30% of 15N-transformation. In situ whole-ecosystem nitrification rates were four to nine times higher than those in the water column alone, implying a crucial role for the large reactive marsh surface area in N-transformation. Under conditions of low oxygen concentrations and high...... and retention were traced in six subsequent tide cycles. We present data for the water phase components of the marsh system, in which changes in concentration and isotopic enrichment of NO3-, NO2- , N2O, N2, NH4+, and suspended particulate nitrogen (SPN) were measured in concert with a mass balance study....... Simultaneous addition of a conservative tracer (NaBr) confirmed that tracer was evenly distributed, and the Br2 budget was almost closed (115% recovery). All analyzed dissolved and suspended N pools were labeled, and 31% of added 15N-NH4+ was retained or transformed. Nitrate was the most important pool for 15N...

  5. External Ear Resonant Amplitude and Frequency of 3-7 Year Old Children

    Directory of Open Access Journals (Sweden)

    Amir Hossein Zare

    2004-06-01

    Full Text Available Objective: To measure external ear resonant amplitude and frequency in children (3-7 years old and to compare with adult measures. Method and materials: The external ear resonance peak amplitude and frequency of 63 children 3-7 years old were recorded. All of the children had normal tympanogram and there was no cerumen in external auditory canal. 20 adult of 21-24 years old (10 male , 10 female were selected in order to compare with children that had normal tympanogram. The tests included : 1-otoscopy 2- tympanometry 3-microphone probe tube test. Results: The average of resonance peak frequency for children and adult is 4200 Hz and 3200 Hz , respectively. The resonance frequency of children had significantly diffrence with average of resonance frequency in adults. The average of resonance peak amplitude for children and adult is 17.70 dB and 17.17 dB , respectively. Conclusion: Resonant frequency and amplitude affect the hearing aid prescription and fitting process and calculating insertion gain; so, this measures seem should be considered in children hearing aid fitting.

  6. Predicting interactions among fishing, ocean warming, and ocean acidification in a marine system with whole-ecosystem models.

    Science.gov (United States)

    Griffith, Gary P; Fulton, Elizabeth A; Gorton, Rebecca; Richardson, Anthony J

    2012-12-01

    An important challenge for conservation is a quantitative understanding of how multiple human stressors will interact to mitigate or exacerbate global environmental change at a community or ecosystem level. We explored the interaction effects of fishing, ocean warming, and ocean acidification over time on 60 functional groups of species in the southeastern Australian marine ecosystem. We tracked changes in relative biomass within a coupled dynamic whole-ecosystem modeling framework that included the biophysical system, human effects, socioeconomics, and management evaluation. We estimated the individual, additive, and interactive effects on the ecosystem and for five community groups (top predators, fishes, benthic invertebrates, plankton, and primary producers). We calculated the size and direction of interaction effects with an additive null model and interpreted results as synergistic (amplified stress), additive (no additional stress), or antagonistic (reduced stress). Individually, only ocean acidification had a negative effect on total biomass. Fishing and ocean warming and ocean warming with ocean acidification had an additive effect on biomass. Adding fishing to ocean warming and ocean acidification significantly changed the direction and magnitude of the interaction effect to a synergistic response on biomass. The interaction effect depended on the response level examined (ecosystem vs. community). For communities, the size, direction, and type of interaction effect varied depending on the combination of stressors. Top predator and fish biomass had a synergistic response to the interaction of all three stressors, whereas biomass of benthic invertebrates responded antagonistically. With our approach, we were able to identify the regional effects of fishing on the size and direction of the interacting effects of ocean warming and ocean acidification. ©2012 Society for Conservation Biology.

  7. A Case of Male Osteoporosis: A 37-Year-Old Man with Multiple Vertebral Compression Fractures

    Directory of Open Access Journals (Sweden)

    Suhaib Radi

    2017-01-01

    Full Text Available While the contributing role of testosterone to bone health is rather modest compared to other factors such as estradiol levels, male hypogonadism is associated with low bone mass and fragility fractures. Along with stimulating physical puberty by achieving virilization and a normal muscle mass and improving psychosocial wellbeing, the goals of testosterone replacement therapy in male hypogonadism also include attainment of age-specific bone mineral density. We report on a 37-year-old man who presented with multiple vertebral compression fractures several years following termination of testosterone replacement therapy for presumed constitutional delay in growth and puberty. Here, we discuss the management of congenital hypogonadotropic hypogonadism with hyposmia (Kallmann syndrome, with which the patient was ultimately diagnosed, the role of androgens in the acquisition of bone mass during puberty and its maintenance thereafter, and outline specific management strategies for patients with hypogonadism and high risk for fragility fractures.

  8. Attaining whole-ecosystem warming using air and deep-soil heating methods with an elevated CO2 atmosphere

    Science.gov (United States)

    Hanson, Paul J.; Riggs, Jeffery S.; Nettles, W. Robert; Phillips, Jana R.; Krassovski, Misha B.; Hook, Leslie A.; Gu, Lianhong; Richardson, Andrew D.; Aubrecht, Donald M.; Ricciuto, Daniel M.; Warren, Jeffrey M.; Barbier, Charlotte

    2017-02-01

    This paper describes the operational methods to achieve and measure both deep-soil heating (0-3 m) and whole-ecosystem warming (WEW) appropriate to the scale of tall-stature, high-carbon, boreal forest peatlands. The methods were developed to allow scientists to provide a plausible set of ecosystem-warming scenarios within which immediate and longer-term (1 decade) responses of organisms (microbes to trees) and ecosystem functions (carbon, water and nutrient cycles) could be measured. Elevated CO2 was also incorporated to test how temperature responses may be modified by atmospheric CO2 effects on carbon cycle processes. The WEW approach was successful in sustaining a wide range of aboveground and belowground temperature treatments (+0, +2.25, +4.5, +6.75 and +9 °C) in large 115 m2 open-topped enclosures with elevated CO2 treatments (+0 to +500 ppm). Air warming across the entire 10 enclosure study required ˜ 90 % of the total energy for WEW ranging from 64 283 mega Joules (MJ) d-1 during the warm season to 80 102 MJ d-1 during cold months. Soil warming across the study required only 1.3 to 1.9 % of the energy used ranging from 954 to 1782 MJ d-1 of energy in the warm and cold seasons, respectively. The residual energy was consumed by measurement and communication systems. Sustained temperature and elevated CO2 treatments were only constrained by occasional high external winds. This paper contrasts the in situ WEW method with closely related field-warming approaches using both aboveground (air or infrared heating) and belowground-warming methods. It also includes a full discussion of confounding factors that need to be considered carefully in the interpretation of experimental results. The WEW method combining aboveground and deep-soil heating approaches enables observations of future temperature conditions not available in the current observational record, and therefore provides a plausible glimpse of future environmental conditions.

  9. [Salter innominate osteotomy for the treatment of developmental dysplasia of the hip: 37 years of follow-up].

    Science.gov (United States)

    Atik, O Şahap; Daldal, İsmail

    2015-01-01

    In this article, we report the radiological and clinical status at postoperative 37th year of a 39-year-old male patient who was treated with bilateral Salter innominate osteotomy due to bilateral developmental dysplasia of the hip when he was two years old. The patient expressed that he had no complaint including pain or limitation in range of motion in both hip joints for 37 years. Pain started six months ago in right hip joint. Patient used cortisone for 12 months with a diagnosis of Henoch-Schönlein purpura five years ago. Radiologic imaging revealed findings of bilateral Salter innominate osteotomy and avascular osteonecrosis on the right femoral head. Kirschner wires which were used during operations 37 years ago remained buried in pelvic bone. Bilateral development of acetabulum and femoral head was very good. Anteroposterior and lateral radiographs of right hip joint revealed degenerative osteoarthritis secondary to avascular osteonecrosis on the right femoral head. Except for the last six months, patient has been living without pain or limitation in range of motion for postoperative 37 years.

  10. [Granuloma Gravidarum in a 37-year-old 1st Gravida, 1st Para--A Case Report].

    Science.gov (United States)

    Findeklee, S

    2015-10-01

    The granuloma gravidarum is a rare benign tumour with gingival origin. It occurs in circa 0.2% of pregnancies. Mostly we see an asymptomatic course of disease terminated by hormonal changes after delivery. If the granuloma is associated with complaints of the pregnant woman, for example masticational pain or recurrent bleedings, therapeutic options are conservative therapy, surgery or delivery. We report the case of a 37-year-old 1st gravida, 1st para who had an induced delivery in the 39+2 gestational week because of a symptomatic granuloma gravidarum. We saw a spontaneous remission of the granuloma within 3 months post partum. The case report underlines the importance of suitable information for pregnant women about oral hygiene and the necessity of regular dental controls during pregnancy for prophylaxis of granuloma gravidarum.

  11. 37 years of body mass index and dementia: observations from the prospective population study of women in Gothenburg, Sweden.

    Science.gov (United States)

    Gustafson, Deborah R; Bäckman, Kristoffer; Joas, Erik; Waern, Margda; Östling, Svante; Guo, Xinxin; Skoog, Ingmar

    2012-01-01

    Level of adiposity is linked to dementia in epidemiological studies. Overweight and obesity in mid- and late-life may increase risk for dementia, whereas decline in body weight or body mass index (BMI) and underweight in years preceding and at the time of a dementia diagnosis may also relate to dementia. Longitudinal studies with sufficient follow-up are necessary to estimate trajectories that allow better understanding of the relationship between adiposity indices and dementia over the life course. We evaluated the natural history of BMI in relationship to clinical dementia over 37 years in the Prospective Population Study of Women (PPSW) in Sweden. PPSW is a systematic sample of 1462 women born 1908, 1914, 1918, 1922, and 1930 and aged 38-60 years at baseline. Examinations occurred in 1968, 1974, 1980, 1992, 2000, and 2005. Statistical analyses were conducted using mixed effects regression models. Trajectories of BMI over 37 years as a function of age differed between women who did versus did not develop dementia. Women developing dementia evidenced a lesser increase in BMI from age 38 to 70 years. After age 70, the BMI slope decreased similarly (no "accelerated decline") irrespective of dementia status. A lower BMI before and during dementia onset was observed. Women with similar BMI at mid-life exhibited a different pattern of BMI change as they approached late-life that was related to dementia onset. BMI may be a potential marker of dementia-related neuropathologies in the brain. Dementia is related to a common risk factor, BMI, from mid-to late-life.

  12. PDGFRβ-Rearranged Myeloid Neoplasm with Marked Eosinophilia in a 37-Year-Old Man; And a Literature Review

    Science.gov (United States)

    Andrei, Mirela; Bandarchuk, Andrei; Abdelmalek, Cherif; Kundra, Ajay; Gotlieb, Vladimir; Wang, Jen Chin

    2017-01-01

    Patient: Male, 37 Final Diagnosis: PDGFRβ-rearranged myeloid neoplasm with eosinophilia Symptoms: Night sweats • weight loss Medication: — Clinical Procedure: — Specialty: Hematology Objective: Rare disease Background: PDGFRβ-positive myeloid neoplasms are rare. Marked leukocytosis (over 100×109/L) with marked eosinophilia (over 10%) has been rarely described in myeloid neoplasms associated with PDGFRβ rearrangement. Case report: We report a case of 37-year-old man with myeloid neoplasm associated with PDGFRβ rearrangement who presented with marked eosinophilia of 13.3% and leukocytosis with WBC count of 189×109/L. He was found to have PDGFRβ locus rearrangement at 5q32-33 by fluorescent in situ hybridization (FISH). He responded very well to low-dose imatinib therapy. To the best of our knowledge this degree of hypereosinophilia and leukocytosis in a young adult was reported only once previously. Using low dose therapy in treating this condition has rarely been reported and has not been clearly defined. Our case demonstrated that low dose imatinib therapy can be as effective as high dose imatinib therapy in treating PDGFRβ-positive myeloid neoplasms. Conclusions: The patient presented with very high WBC and eosinophil count rarely reported in a young adult with PDGFRβ-rearranged myeloid neoplasm. The recognition of this rare presentation as a manifestation of PDGFRβ-gene translocation is important, and equally important that low-dose imatinib (100 mg/day) might have the same effect as higher dose imatinib (400 mg/day). PMID:28209946

  13. A 37-year-old man trying to choose a high-quality hospital: review of hospital quality indicators.

    Science.gov (United States)

    Howell, Michael D

    2009-12-01

    Mr A, a previously healthy 37-year-old man, was diagnosed as having Prinzmetal angina and a hypercoagulable state 3 years ago after an ST-elevation myocardial infarction. Now, his cardiologist is moving and Mr A must select a new physician and health system. Geographic relocation, insurance changes, and other events force millions in the United States to change physicians and hospitals every year. Mr A should begin by choosing a primary care physician, since continuity and coordination of care improves outcomes. Evidence for evaluating specific physicians is less robust, though a variety of sources are available. A broad range of detailed quality information, such as Medicare's Hospital Compare (http://www.hospitalcompare.hhs.gov/), is available for selecting a hospital. However, the relationship of these metrics to patient outcomes is variable, and different Web sites provide meaningfully different rankings and data interpretations. For Mr A in particular, a warfarin management team, the hospital's location, and a cardiologist with whom he feels comfortable and who can communicate with his primary care physician are important factors. Nevertheless, hospital quality information and metrics are an important component of the strategy Mr A should take to solve this challenging problem.

  14. Left cheek bias for emotion perception, but not expression, is established in children aged 3-7 years.

    Science.gov (United States)

    Lindell, Annukka K; Tenenbaum, Harriet R; Aznar, Ana

    2017-01-01

    As the left hemiface is controlled by the emotion-dominant right hemisphere, emotion is expressed asymmetrically. Portraits showing a model's left cheek consequently appear more emotive. Though the left cheek bias is well established in adults, it has not been investigated in children. To determine whether the left cheek biases for emotion perception and expression are present and/or develop between the ages of 3 and 7 years, 145 children (71 male, 74 female; M age = 65.49 months) completed two experimental tasks: one assessing biases in emotion perception, and the other assessing biases in emotion expression. Regression analysis confirmed that children aged 3-7 years find left cheek portraits happier than right cheek portraits, and age does not predict the magnitude of the bias. In contrast when asked to pose for a photo expressing happiness children did not show a left cheek bias, with logistic regression confirming that age did not predict posing orientations. These findings indicate that though the left cheek bias for emotion perception is established by age 3, a similar bias for emotion expression is not evident by age 7. This implies that tacit knowledge of the left cheek's greater expressivity is not innate but develops in later childhood/adolescence.

  15. PDGFRᵝ-Rearranged Myeloid Neoplasm with Marked Eosinophilia in a 37-Year-Old Man; And a Literature Review.

    Science.gov (United States)

    Andrei, Mirela; Bandarchuk, Andrei; Abdelmalek, Cherif; Kundra, Ajay; Gotlieb, Vladimir; Wang, Jen Chin

    2017-02-17

    BACKGROUND PDGFRᵝ-positive myeloid neoplasms are rare. Marked leukocytosis (over 100×10⁹/L) with marked eosinophilia (over 10%) has been rarely described in myeloid neoplasms associated with PDGFRᵝ rearrangement. CASE REPORT We report a case of 37-year-old man with myeloid neoplasm associated with PDGFRᵝ rearrangement who presented with marked eosinophilia of 13.3% and leukocytosis with WBC count of 189×10⁹/L. He was found to have PDGFRᵝ locus rearrangement at 5q32-33 by fluorescent in situ hybridization (FISH). He responded very well to low-dose imatinib therapy. To the best of our knowledge this degree of hypereosinophilia and leukocytosis in a young adult was reported only once previously. Using low dose therapy in treating this condition has rarely been reported and has not been clearly defined. Our case demonstrated that low dose imatinib therapy can be as effective as high dose imatinib therapy in treating PDGFRᵝ-positive myeloid neoplasms. CONCLUSIONS The patient presented with very high WBC and eosinophil count rarely reported in a young adult with PDGFRᵝ-rearranged myeloid neoplasm. The recognition of this rare presentation as a manifestation of PDGFRᵝ-gene translocation is important, and equally important that low-dose imatinib (100 mg/day) might have the same effect as higher dose imatinib (400 mg/day).

  16. Influence of obesity and physical workload on disability benefits among construction workers followed up for 37 years.

    Science.gov (United States)

    Robroek, Suzan J W; Järvholm, Bengt; van der Beek, Allard J; Proper, Karin I; Wahlström, Jens; Burdorf, Alex

    2017-09-01

    The objectives of this study are to investigate the relation between obesity and labour force exit via diagnosis-specific disability benefits, and whether physical workload modifies this association. A longitudinal analysis was performed among 3 28 743 Swedish construction workers in the age of 15-65 years. Body weight and height were measured at a health examination and enriched with register information on disability benefits up to 37 years later. Diagnoses of disability benefits were categorised into cardiovascular diseases (CVDs), musculoskeletal diseases (MSDs), mental disorders and others. A job exposure matrix, based on self-reported lifting of heavy loads and working in bent forward or twisted position, was applied as a measure of physical workload. Cox proportional hazards regression analyses were performed, and the relative excess risk due to interaction (RERI) between obesity and physical workload was calculated. Obese construction workers were at increased risk of receiving disability benefits (HR 1.70, 95% CI 1.65 to 2.76), mainly through CVD (HR 2.30) and MSD (HR 1.71). Construction workers with a high physical workload were also more likely to receive a disability benefit (HR 2.28, 95% CI 2.21 to 2.34), particularly via MSD (HR 3.02). Obesity in combination with a higher physical workload increased the risk of disability benefits (RERI 0.28) more than the sum of the risks of obesity and higher physical workload, particularly for MSD (RERI 0.44). Obesity and a high physical workload are risk factors for disability benefit. Furthermore, these factors are synergistic risk factors for labour force exit via disability benefit through MSD. Comprehensive programmes that target health promotion to prevent obesity and ergonomic interventions to reduce physical workload are important to facilitate sustained employment. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial

  17. Efficacy of Highly Purified Urinary FSH versus Recombinant FSH in Chinese Women over 37 Years Undergoing Assisted Reproductive Techniques

    Directory of Open Access Journals (Sweden)

    Xuemei Liu

    2015-02-01

    Full Text Available Background: Urine derived follicle-stimulating hormone (uFSH contains a higher proportion of acidic isoforms, whereas recombinant FSH (rFSH contains a higher proportion of less-acidic isoforms. Less-acidic isoforms have a faster clearance, and thus a shorter half-life than the acidic FSH isoforms. The slow clearance of the acidic isoforms has a longer half-life and higher biological activity. This study was designed to determine whether uFSH or rFSH is more effective in older Chinese women undergoing assisted reproductive techniques (ART. Materials and Methods: This is a prospective, randomized, controlled cohort study. A total of 508 Chinese women over 37 years were randomized into two following study groups for their in vitro fertilization (IVF or intracytoplasmic sperm injection (ICSI cycles: i. group A (n=254 were treated with rFSH, and ii. group B (n=254 were treated with uFSH. Both groups were suppressed with a gonadotropin-releasing hormone (GnRH analogue using a long down-regulation protocol. The main outcomes for comparison were days of stimulation, estradiol (E2 on the day of human chorionic gonadotropin (hCG administration, number of oocytes collected, amount of FSH used, quantity of FSH/oocyte, endometrial thickness at hCG day, M П oocyte rate, 2PN zygote rate, grade І embryo rate, number of embryos cryopreserved, pregnancy rate, implantation rate, abortion rate and the rate of no transferable embryos. Results: Twenty two cycles including 16 cycles with poor ovarian response and six cycles with ovarian hyperstimulation syndrome were cancelled. There were 243 cycles left in each group. The patients treated with uFSH had a significantly higher 2PN zygote rate (87.4 vs. 76.6%, p0.05. Conclusion: This study showed that uFSH produced a significantly higher proportion of grade І embryos than rFSH in older Chinese women and there was a significantly lower chance of no transferable embryos in uFSH cycles. The clinical efficacy of the two

  18. Free-Labeling Facial Expressions and Emotional Situations in Children Aged 3-7 Years: Developmental Trajectory and a Face Inferiority Effect

    Science.gov (United States)

    Wang, Zhenhong; Lü, Wei; Zhang, Hui; Surina, Alyssa

    2014-01-01

    Chinese children (N = 185, aged 3-7 years) were assessed on their abilities to freely label facial expressions and emotional situations. Results indicated that the overall accuracy of free-labeling facial expressions increased relatively quickly in children aged 3-5 years, but slowed down in children aged 5-7 years. In contrast, the overall…

  19. 37 years of scientific activity in a Biochemistry Department in Brazil: patterns of growth and factors leading to increased productivity

    Directory of Open Access Journals (Sweden)

    Urubatã E. Gomes

    2011-09-01

    do Rio Grande do Sul - UFRGS, bem como identificar os fatores internos e externos que influenciaram este perfil crescente de produção. Foi realizada uma análise histórica da produção científica do Departamento, a qual representa uma parte considerável da produção científica da Universidade. Ao enfocar a evolução temporal do seu crescimento e o estudo das correlações entre a produção científica e eventos importantes na história do Departamento de Bioquímica e das políticas científicas brasileiras, podemos concluir que os fatores internos (como a criação de um programa de pós-graduação, a colaboração entre pesquisadores, a experiência no exterior por parte dos pesquisadores, a qualificação dos docentes e fatores externos (como os investimentos na formação de pós-graduandos, o estabelecimento de políticas nacionais científicas, tais como estímulos financeiros para os pesquisadores produtivos e sistemas de avaliação influenciam a produção científica no Brasil.

  20. Nitrogen assimilation and short term retention in a nutrient-rich tidal freshwater marsh – a whole ecosystem 15N enrichment study

    Directory of Open Access Journals (Sweden)

    B. Gribsholt

    2007-01-01

    Full Text Available An intact tidal freshwater marsh system (3477 m2 was labelled by adding 15N-ammonium as a tracer to the flood water inundating the ecosystem. The appearance and retention of 15N-label in different marsh components (leaves, roots, sediment, leaf litter and invertebrate fauna was followed over 15 days. This allowed us to elucidate the direct assimilation and dependence on creek-water nitrogen on a relatively short term and provided an unbiased assessment of the relative importance of the various compartments within the ecosystem. Two separate experiments were conducted, one in spring/early summer (May 2002 when plants were young and building up biomass; the other in late summer (September 2003 when macrophytes were in a flowering or early senescent state. Nitrogen assimilation rate (per hour inundated was >3 times faster in May compared to September. On both occasions, however, the results clearly revealed that the less conspicuous compartments such as leaf litter and ruderal vegetations are more important in nitrogen uptake and retention than the prominent reed (Phragmites australis meadows. Moreover, short-term nitrogen retention in these nutrient rich marshes occurs mainly via microbial pathways associated with the litter and sediment. Rather than direct uptake by macrophytes, it is the large reactive surface area provided by the tidal freshwater marsh vegetation that is most crucial for nitrogen transformation, assimilation and short term retention in nutrient rich tidal freshwater marshes. Our results clearly revealed the dominant role of microbes in initial nitrogen retention in marsh ecosystems.

  1. Nitrogen assimilation and short term retention in a nutrient-rich tidal freshwater marsh - a whole ecosystem 15N enrichment study

    Science.gov (United States)

    Gribsholt, B.; Struyf, E.; Tramper, A.; de Brabandere, L.; Brion, N.; van Damme, S.; Meire, P.; Dehairs, F.; Middelburg, J. J.; Boschker, H. T. S.

    2007-01-01

    An intact tidal freshwater marsh system (3477 m2) was labelled by adding 15N-ammonium as a tracer to the flood water inundating the ecosystem. The appearance and retention of 15N-label in different marsh components (leaves, roots, sediment, leaf litter and invertebrate fauna) was followed over 15 days. This allowed us to elucidate the direct assimilation and dependence on creek-water nitrogen on a relatively short term and provided an unbiased assessment of the relative importance of the various compartments within the ecosystem. Two separate experiments were conducted, one in spring/early summer (May 2002) when plants were young and building up biomass; the other in late summer (September 2003) when macrophytes were in a flowering or early senescent state. Nitrogen assimilation rate (per hour inundated) was >3 times faster in May compared to September. On both occasions, however, the results clearly revealed that the less conspicuous compartments such as leaf litter and ruderal vegetations are more important in nitrogen uptake and retention than the prominent reed (Phragmites australis) meadows. Moreover, short-term nitrogen retention in these nutrient rich marshes occurs mainly via microbial pathways associated with the litter and sediment. Rather than direct uptake by macrophytes, it is the large reactive surface area provided by the tidal freshwater marsh vegetation that is most crucial for nitrogen transformation, assimilation and short term retention in nutrient rich tidal freshwater marshes. Our results clearly revealed the dominant role of microbes in initial nitrogen retention in marsh ecosystems.

  2. Effectiveness of an educational pamphlet for mothers on cooperation of 3-7 years old children in the first dental visit

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    Motlagh Mehdi Ghandehari

    2015-01-01

    Full Text Available   Background and Aims: Dental environment is a stressful place for children. In many cases, parents transmit their anxiety to their children in the first dental visit. Mothers as the closest person to the children may have important influence on their children’s behavior in dentistry. The purpose of this study was to evaluate the effectiveness of an educational pamphlet for mothers on children’s behavior in the first dental visit.   Materials and Methods: This study was conducted on 238 mothers who had 3-7 years old children undergoing dental treatment for the first time. The participants were divided into interventional and control group randomly. Behavior of children was assessed by questionnaire according to 4 point scale of Frankle. The questionnaire contained 5 parts: separation of child from the mother, entering the dental room, opening the mouth, communicating with dentist, getting the prize. Data were analyzed using Chi-square test.   Results: The educational pamphlet was effective on the separation of child from the mother, the cooperation of children in interventional group was better than the control group (P=0.006. In interventional group 96.2% of and in the control group 90.8% of children had good and very good behavior but the difference was not significant (P=0.11.   Conclusion: Although the educational pamphlet was effective on the separation of child from mother. No significant difference in behavior of 3-7 year-old children between interventional and control group was found.

  3. Neuroendocrine pancreatic carcinoma after initial diagnosis of acute postpartal coeliac disease in a 37-year old woman - fatal coincidence or result of a neglected disease?

    Science.gov (United States)

    Gundling, Felix; Nerlich, Andreas; Heitland, Wolf; Schepp, Wolfgang

    2014-05-01

    An acute presentation after pregnancy of coeliac disease (CD) in the puerperium is a rare condition which has been described mostly in primigravidae in patients highly suspicious of latent CD. We report the case of a 37-year-old woman who was referred to our Hospital because of refractory watery diarrhea and malnutrition syndrome. Endoscopy of the upper gastrointestinal tract revealed the classic visual features of CD and in addition, some duodenal ulcers negative for Helicobacter pylori, which seems to be another clinical feature in patients with CD. The diagnosis of acute onset of fulminant postpartal CD (Marsh score stage 3c) was confirmed histologically. Remarkably, simultaneous well-differentiated neuroendocrine non-functioning pancreatic neuroendocrine carcinoma (PNET) was diagnosed on radiological abdominal imaging which was performed since serum gastrin was remarkably high, treated by distal pancreatectomy and splenectomy. This report is, to our knowledge, the first description of the two entities, CD and PNET occurring together. Since results of antral histological studies showed diffuse hyperplasia of G-cells, probably in response to hypergastrinaemia, enterochromaffin cell carcinogenesis might have served as a possible link between both diseases.

  4. Eyes wide shut - unusual two stage repair of pectus excavatum and annuloaortic ectasia in a 37 year old marfan patient: case report

    Directory of Open Access Journals (Sweden)

    Barriuso Clemente

    2011-05-01

    Full Text Available Abstract We report about a 37 year old male patient with a pectus excavatum. The patient was in NYHA functional class III. After performed computed tomography the symptoms were thought to be related to the severity of chest deformation. A Ravitch-procedure had been accomplished in a district hospital in 2009. The crack of a metal bar led to a reevaluation 2010, in which surprisingly the presence of an annuloaortic ectasia (root 73 × 74 mm in direct neighborhood of the formerly implanted metal-bars was diagnosed. Echocardiography revealed a severe aortic valve regurgitation, the left ventricle was massively dilated presenting a reduced ejection fraction of 45%. A marfan syndrome was suspected and the patient underwent a valve sparing aortic root replacement (David procedure in our institution with an uneventful postoperative course. A review of the literature in combination with discussion of our case suggests the application of stronger recommendations towards preoperative cardiovascular assessment in patients with pectus excavatum.

  5. Associations between oral health and risk of dementia in a 37-year follow-up study: the prospective population study of women in Gothenburg.

    Science.gov (United States)

    Stewart, Robert; Stenman, Ulrika; Hakeberg, Magnus; Hägglin, Catharina; Gustafson, Deb; Skoog, Ingmar

    2015-01-01

    To investigate the association between incident dementia and previous number of teeth measured over a long interval. Retrospective analysis of a 37-year cohort study. Prospective Population Study of Women in Gothenburg. Women with (n = 158) and without (n = 539) dementia in 2000 to 2005. Tooth counts in 1968-69, 1980-81, and 1992-93. Covariates included age, education, stroke, myocardial infarction, diabetes mellitus, smoking status, blood pressure, body mass index, and cholesterol level. After adjustment for age, odds ratios (ORs) for dementia in 2000-05, comparing first with fourth tooth count quartiles, were 1.81 (95% confidence interval (CI) = 1.03-3.19) for tooth counts measured in 1968, 2.25 (95% CI = 1.18-4.32) for those in 1980, and 1.99 (0.92-4.30) for those in 1992. After further adjustment for education, ORs were 1.40 (95% CI = 1.03-3.19) for 1968, 1.96 (95% CI = 0.98-3.95) for 1980, and 1.59 (95% CI = 0.71-3.53) for 1992, and after additional adjustment for vascular risk factors, ORs were 1.38 (95% CI = 0.74-2.58) for 1968, 2.09 (95% CI = 1.01-4.32) for 1980, and 1.61 (95% CI = 0.70-3.68) for 1992. In most of the analyses, lower tooth count was not associated with dementia, although a significant association was found for one of the three examinations. Further research may benefit from more-direct measures of dental and periodontal disease. © 2015 The Authors. The Journal of the American Geriatrics Society published by Wiley Periodicals, Inc. on behalf of The American Geriatrics Society.

  6. Analysis on the data of Rutter questionnaire in preschool children aged 3-7 years%3~7岁学龄前儿童行为问题研究

    Institute of Scientific and Technical Information of China (English)

    常宪鲁; 李国海; 张燕; 王华云

    2012-01-01

    OBJECTIVE To explore epidemiologic features and related factors of behavior problems of aged 3-7-year-old preschool children. METHODS 724 children were investigated with the Rutter questionnaire and questionnaire of related factors of child behavior. RESULTS The detected rate of behavior problem were 24.2%, the detected rate of boys was 28.4%, and 19.8% in girls respectively, the difference between boys and girls was significant (χ2 = 11.61, P< 0.01). The detected rate of A behavior in boys was significantly higher than that in girls (χ2 = 9.45, P < 0.01), while no gender differences were observed in N and M behavior. There was a significant difference of the detected rate between urban and rural areas (χ2 = 10.87, P < 0.05). The single factor analysis discovered that related factors of behavior problems of preschool children included mothers' mood status during pregnancy, childbearing methods, abnormity status of newborn while been given birth.children's age, gender difference, the difference between urban and rural areas. Multivariate stepwise regression analysis indicated that dangerous factors included reported anxiety or depression of mother during pregnancy, abnormity status of newborn while been given birth, boys and lives in rural areas. CONCLUSION The incidence of behavior problem of 3-7-year-old preschool children is high, the detected rate of behavior problems in rural is significantly higher than that in urban areas. Children's behavior problems have close relationship with some mothers' factor such as mothers' bad mood status during pregnancy and prenatal abnormalities.%目的 了解学龄前儿童行为问题的发生特点及相关因素.方法 采用Rutter儿童行为评定量表(父母问卷)及自编儿童行为发病相关因素调查表对镇江市城乡724名学龄前儿童进行家长问卷调查.结果 学龄前儿童行为问题检出率为24.2%,男女儿童检出率分别为28.4%和19.8%,两者差异有统计学意义(x2=11.61,P< 0.01),男童A行为(违纪行为)明显多于女童(x2=9.45,P< 0.01),N行为(神经症性行为)及M行为(混合行为)未发现性别差异,农村儿童问题行为检出率高于城市(x2=10.87,P<0.05).单因素分析发现,影响儿童行为障碍的相关因素为母孕期情绪、分娩方式、分娩时异常情况、儿童性别、儿童年龄及城乡区别6个因素.Logistic回归分析显示,母孕期焦虑或抑郁、分娩时异常情况、男童、农村与儿童行为发生显著相关.结论 学龄前儿童行为问题发生率高,农村儿童行为问题多于城市儿童.儿童行为问题与母孕期不良情绪及孕产期异常情况关系密切.

  7. Sexual offending runs in families: A 37-year nationwide study

    Science.gov (United States)

    Långström, Niklas; Babchishin, Kelly M; Fazel, Seena; Lichtenstein, Paul; Frisell, Thomas

    2015-01-01

    Background: Sexual crime is an important public health concern. The possible causes of sexual aggression, however, remain uncertain. Methods: We examined familial aggregation and the contribution of genetic and environmental factors to sexual crime by linking longitudinal, nationwide Swedish crime and multigenerational family registers. We included all men convicted of any sexual offence (N = 21 566), specifically rape of an adult (N = 6131) and child molestation (N = 4465), from 1973 to 2009. Sexual crime rates among fathers and brothers of sexual offenders were compared with corresponding rates in fathers and brothers of age-matched population control men without sexual crime convictions. We also modelled the relative influence of genetic and environmental factors to the liability of sexual offending. Results: We found strong familial aggregation of sexual crime [odds ratio (OR) = 5.1, 95% confidence interval (CI) = 4.5–5.9] among full brothers of convicted sexual offenders. Familial aggregation was lower in father-son dyads (OR = 3.7, 95% CI = 3.2–4.4) among paternal half-brothers (OR = 2.1, 95% CI = 1.5–2.9) and maternal half-brothers (OR = 1.7, 95% CI = 1.2–2.4). Statistical modelling of the strength and patterns of familial aggregation suggested that genetic factors (40%) and non-shared environmental factors (58%) explained the liability to offend sexually more than shared environmental influences (2%). Further, genetic effects tended to be weaker for rape of an adult (19%) than for child molestation (46%). Conclusions: We report strong evidence of familial clustering of sexual offending, primarily accounted for by genes rather than shared environmental influences. Future research should possibly test the effectiveness of selective prevention efforts for male first-degree relatives of sexually aggressive individuals, and consider familial risk in sexual violence risk assessment. PMID:25855722

  8. Temperament in 3-7-year-old Children with Bronchial Asthma in Foshan City of Guangdong Province%广东省佛山市3~7岁支气管哮喘患儿气质的研究

    Institute of Scientific and Technical Information of China (English)

    欧阳林静; 王斌; 赵小玲; 马静敏; 林莉萍

    2011-01-01

    目的 探讨广东省佛山市3~7岁支气管哮喘患儿与其气质的关系.方法 对66例支气管哮喘患儿(哮喘组)和113例健康儿童(正常对照组)采用Carry 3~7岁儿童气质问卷(behavioral style questionnaire,BSQ)进行气质维度评分,并根据各气质维度的得分情况对2组进行气质类型测评.结果 哮喘组在气质维度中的趋避性、适应性、反应强度、情绪本质、坚持性、注意分散度评分值与正常对照组比较差异均有统计学意义(均P<0.05);哮喘组患儿ID型、D型、S型所占比例较高,IE型和E型所占比例较低,与正常对照组比较差异均有统计学意义(均P<0.05).结论 支气管哮喘患儿的气质类型分布和气质部分维度与正常儿童有明显差异,治疗儿童支气管哮喘时应考虑其个体气质特征,并给予适当的干预.%Objective To explore the relationship between bronchial asthma and temperament in children aged 3-7 year's in Foshan city of Guangdong province. Methods Temperament dimensions were investigated with carry 3-7 year's childred behavioral style questionnaire(BSQ)and temperamental types were measured in 66 children with bronchial asthma (asthma group) and 113 normal children(normal control group). Results There were significant differences in the scores of phohotaxis, adaptability, response intensity, emotional nature, persistence and attention dispersity between asthma group and normal control group(all P<0.05). Compared with the normal control, the proportions of intermediate-difficult type, difficult type and slow-to-warm-up type increased and the proportions of intermediate easy type and easy type decreased in asthma group (all P<0.05). Conclusion There were significant differences in the distribution of temperament types and partial dimensions of temperament between children with bronchial asthma and normal children. Appropriate intervention should be given according to individual temperament characteristics in treatment of children with bronchial asthma.

  9. A case report of neuromyelitis optica with 37 years' interval between optic neuropathy and spinal cord lesion and literature review%从视神经病变到脊髓损伤间隔37年的视神经脊髓炎一例并文献复习

    Institute of Scientific and Technical Information of China (English)

    李长青; 梁友云; 戚晓昆; 刘建国

    2011-01-01

    目的 提高对从视神经病变到脊髓损伤间隔长的视神经脊髓炎(NMO)的认识,以减少误诊.方法 对1例从视神经病变到脊髓损伤间隔37年的NMO患者行血、脑脊液化验及脊髓、头颅MRI等检查,分析临床资料、随访并文献复习.结果 患者脑脊液碱性髓鞘蛋白及IgG合成率均偏高,寡克隆区带阳性,视觉诱发电位异常,脊髓MRI可见T1-7髓内长T2异常信号,诊断明确后经过糖皮质类固醇和丙种球蛋白治疗后患者症状明显好转.目前随访病情稳定.结论 从视神经病变到脊髓损伤可以间隔相当长的时间.当患者出现视神经炎时,要注意亚临床脊髓及头颅病变的筛查,注意是否有转变成为NMO或多发性硬化的可能性.%Objective To improve the recognization of long term interval between optic neuropathy and spinal cord injury of neuromyelitis optica. Methods One 51-year old male patient with 37 years'interval between optic neuropathy and spinal cord injury of neuromyelitis optica underwent the examination of plasma and cerebrospinal fluid and head and spinal MRI examinations, who was also followed up. His clinical data were analyzed and related literature was reviewed. Results The myelin basic protein and IgG index in his cerebrospinal fluid was high, his oligoclonal band of cerebrospinal fluid was positive, and abnormal finding in visual evoked potential. Abnormal intramedullary long T2 signals was showed in spinal cord MRI at T1-7 segment. When dignosed as neuromyelitis optica, the clinical symptom and signs was improved with corticosteroid and gamma globulin therapy. The patient was in stable condition at present.Conclusions There could be a long term interval between optic neuritis and myelitis. One should pay attention to clinical features and imaging examination of subclinical lesion in spinal cord and brain and conoide the possibility of developing neuromyelitis optica or multiple sclerosis.

  10. Complex shifts between food web states in response to whole-ecosystem manipulations

    NARCIS (Netherlands)

    Schröder, A.; Persson, L.; de Roos, A.M.

    2012-01-01

    Food webs can respond in surprising and complex ways to temporary alterations in their species composition. When such a perturbation is reversed, food webs have been shown to either return to the pre-perturbation community state or remain in the food web configuration that established during the pert

  11. Seasonal variations in whole-ecosystem BVOC emissions from a subtropical bamboo plantation in China

    Science.gov (United States)

    Bai, Jianhui; Guenther, Alex; Turnipseed, Andrew; Duhl, Tiffany; Yu, Shuquan; Wang, Bin

    2016-01-01

    Isoprene and monoterpene emissions and environmental conditions were measured over a six month period in a Lei bamboo (Phyllostachys violascens) forest in a subtropical region in China. Isoprene and monoterpene emissions were measured using a relaxed eddy accumulation (REA) system on an above-canopy tower. From July to November of 2012, isoprene contributed 99.1% of terpenoid emissions. α-pinene, constituting 0.8% of total observed terpenoid emissions, was the only monoterpene for which a significant flux was detected. Emissions of the sesquiterpenes longifolene and α-cedrene were observed at very low rates. Isoprene and α-pinene emissions exhibited strong diurnal variations, with lower emissions in the morning and late evening, and the highest emissions around noon. BVOC peak emissions typically occurred a few hours after the noon PAR peak and coincided with the daily temperature peak. This behavior can be described reasonably well by the MEGANv2.1 biogenic emission model. During the campaign (i.e., from 7 July, 2012 to 19 Jan., 2013), the mean (and maximum) emission fluxes (mg m-2 h-1) were 0.95 (10.32) for isoprene, 0.010 (0.176) for α pinene, 0.001 (0.063) for longifolene, and 2.6 × 10-4 (0.009) for α-cedrene, respectively. During the winter season, when the ground was covered by organic mulch to increase soil temperature and to increase the yield of bamboo shoot, there was no evident impact on BVOC emissions. The observed seasonal variation followed the general behavior predicted by the MEGANv2.1 model, with lower emissions associated with cooler conditions, but the magnitude of the emission decrease was greater than expected indicating driving variables are missing from the model. Emission factors, representing the emission expected for a Leaf Area Index of 5 at a temperature of 30 °C and PAR of 1500 μmol m-2 s-1, during the peak growing season for this site were 0.008 mg m-2 h-1 for α-pinene and 3.3 mg m-2 h-1 for isoprene. The isoprene emission factor is similar to the value (3.6 mg m-2 h-1) for this location in the MEGANv2.1 global biogenic emission model. A second bamboo plantation, containing Moso bamboo (Phyllostachys heterocycla), was investigated and found to have similar isoprene and monoterpene emission rates as Lei bamboo forest. The emission data obtained in this study are the first canopy-scale flux measurements reported for bamboo plantations and demonstrate the potential importance of bamboo isoprene emissions for regional ozone and organic aerosol production.

  12. Seasonal and interannual variations in whole-ecosystem BVOC emissions from a subtropical plantation in China

    Science.gov (United States)

    Bai, Jianhui; Guenther, Alex; Turnipseed, Andrew; Duhl, Tiffany; Greenberg, James

    2017-07-01

    Measurements of BVOC emissions, ozone concentration and environmental parameters were carried out from May 2013 to January 2016 in a subtropical Pinus plantation in China. Isoprene and monoterpene emissions were measured using a relaxed eddy accumulation (REA) system and a gradient technique on an above-canopy tower. In 2013, isoprene comprised 21.2% of total terpenoid emissions, while α-pinene, camphene, β-pinene and limonene constituting 51.5%, 2.4%, 9.1%, and 13.0% of total emissions, respectively. Monoterpenes together were the dominant VOCs measured contributing 71.6%. α-pinene, camphene, β-pinene and limonene constituted 67.7%, 3.2%, 11.9%, 17.2% of total monoterpene emissions. Isoprene and monoterpene emissions displayed strong diurnal variations, with lower emissions in the morning and late evening, and the highest emissions around noon. BVOC peak emissions typically occurred a few hours after the noon PAR peak. Isoprene and monoterpene emissions varied with season and were the highest in summer, contributing more than half of the total annual emission, and the lowest emissions were in winter. Evident interannual variations of isoprene, monoterpenes and total BVOCs were observed. Compared to 2013, annual BVOC emissions decreased in 2015, associated with decreases of PAR, Temperature, water vapor, and an increase of all substances in gas, liquid and solid phases in the atmospheric column (e.g., S/Q, the ratio of solar scattered radiation to global radiation). Ozone concentration showed clear diurnal variation with PAR, higher around noon and lower in the early morning and late evening. Generally, there were no evident correlations between ozone concentrations and BVOC emissions, or the vertical gradients of ozone concentrations and BVOC concentrations. Under all sky conditions (including cloudy skies), no strong correlations at a high confidence level or very similar variation patterns were observed between any two following parameters, BVOC emissions, PAR, temperature, water vapor, and S/Q. The major factors controlling BVOC emissions were PAR and temperature but biomass burning smoke and phenology (pine florescence) may also play a role. The mean emission factors at standard conditions determined using the MEGAN model emission algorithms and empirical model of BVOC emissions were 0.71 and 1.19 mg m-2 h-1 for isoprene and 1.39 and 1.65 mg m-2 h-1 for total monoterpenes, respectively.

  13. Energy spectrum of UHECRs measured by newly constructed fluorescence detectors in Telescope Array experiment

    Directory of Open Access Journals (Sweden)

    Fujii Toshihiro

    2013-06-01

    Full Text Available Telescope Array (TA experiment is the largest hybrid detector to observe ultra-high energy cosmic rays (UHECRs in the northern hemisphere. In the TA experiment, we newly designed and constructed 24 fluorescence detectors (FDs located at two stations. We report the energy spectrum of UHECRs with energies above 1017.5 eV from analyzing data collected by the new FDs during the first 3.7 years in monocular mode.

  14. Loss of rare fish species from tropical floodplain food webs affects community structure and ecosystem multifunctionality in a mesocosm experiment.

    Directory of Open Access Journals (Sweden)

    Richard M Pendleton

    Full Text Available Experiments with realistic scenarios of species loss from multitrophic ecosystems may improve insight into how biodiversity affects ecosystem functioning. Using 1000 L mesocoms, we examined effects of nonrandom species loss on community structure and ecosystem functioning of experimental food webs based on multitrophic tropical floodplain lagoon ecosystems. Realistic biodiversity scenarios were developed based on long-term field surveys, and experimental assemblages replicated sequential loss of rare species which occurred across all trophic levels of these complex food webs. Response variables represented multiple components of ecosystem functioning, including nutrient cycling, primary and secondary production, organic matter accumulation and whole ecosystem metabolism. Species richness significantly affected ecosystem function, even after statistically controlling for potentially confounding factors such as total biomass and direct trophic interactions. Overall, loss of rare species was generally associated with lower nutrient concentrations, phytoplankton and zooplankton densities, and whole ecosystem metabolism when compared with more diverse assemblages. This pattern was also observed for overall ecosystem multifunctionality, a combined metric representing the ability of an ecosystem to simultaneously maintain multiple functions. One key exception was attributed to time-dependent effects of intraguild predation, which initially increased values for most ecosystem response variables, but resulted in decreases over time likely due to reduced nutrient remineralization by surviving predators. At the same time, loss of species did not result in strong trophic cascades, possibly a result of compensation and complexity of these multitrophic ecosystems along with a dominance of bottom-up effects. Our results indicate that although rare species may comprise minor components of communities, their loss can have profound ecosystem consequences across

  15. Loss of rare fish species from tropical floodplain food webs affects community structure and ecosystem multifunctionality in a mesocosm experiment.

    Science.gov (United States)

    Pendleton, Richard M; Hoeinghaus, David J; Gomes, Luiz C; Agostinho, Angelo A

    2014-01-01

    Experiments with realistic scenarios of species loss from multitrophic ecosystems may improve insight into how biodiversity affects ecosystem functioning. Using 1000 L mesocoms, we examined effects of nonrandom species loss on community structure and ecosystem functioning of experimental food webs based on multitrophic tropical floodplain lagoon ecosystems. Realistic biodiversity scenarios were developed based on long-term field surveys, and experimental assemblages replicated sequential loss of rare species which occurred across all trophic levels of these complex food webs. Response variables represented multiple components of ecosystem functioning, including nutrient cycling, primary and secondary production, organic matter accumulation and whole ecosystem metabolism. Species richness significantly affected ecosystem function, even after statistically controlling for potentially confounding factors such as total biomass and direct trophic interactions. Overall, loss of rare species was generally associated with lower nutrient concentrations, phytoplankton and zooplankton densities, and whole ecosystem metabolism when compared with more diverse assemblages. This pattern was also observed for overall ecosystem multifunctionality, a combined metric representing the ability of an ecosystem to simultaneously maintain multiple functions. One key exception was attributed to time-dependent effects of intraguild predation, which initially increased values for most ecosystem response variables, but resulted in decreases over time likely due to reduced nutrient remineralization by surviving predators. At the same time, loss of species did not result in strong trophic cascades, possibly a result of compensation and complexity of these multitrophic ecosystems along with a dominance of bottom-up effects. Our results indicate that although rare species may comprise minor components of communities, their loss can have profound ecosystem consequences across multiple trophic

  16. EDITORIAL: Richard Palmer: celebrating 37 years with Journal of Physics: Condensed Matter Richard Palmer: celebrating 37 years with Journal of Physics: Condensed Matter

    Science.gov (United States)

    Ferry, David

    2009-01-01

    It is with a great deal of both happiness and sadness that I have to announce that we are losing one of the real strengths of the Journal of Physics: Condensed Matter (JPCM). Dr Richard Palmer, our Senior Publisher, announced his retirement, and this issue marks the first without his involvement. Of course, we are happy that he will get to enjoy his retirement, but we are sad to lose such a valuable member of our team. Richard first started work at IOP Publishing in March 1971 as an Editorial Assistant with Journal of Physics B: Atomic and Molecular Physics. After a few months, he transferred to Journal of Physics C: Solid State Physics. During his first year, he was sent on a residential publishing training course and asked to sign an undertaking to stay at IOP Publishing for at least two years. Although Richard refused to sign, as he did not want to commit himself, he has remained with the journal since then. The following year, the Assistant Editor of Journal of Physics C: Solid State Physics, Malcolm Haines, walked out without notice in order to work on his family vineyard in France, and Richard stepped into the breach. In those days, external editors had a much more hands-on role in IOP Publishing and he had to travel to Harwell to be interviewed by Alan Lidiard, the Honorary Editor of Journal of Physics C: Solid State Physics, before being given the job of Assistant Editor permanently. I am told that in those days the job consisted mainly of editing and proofreading and peer review. There was no journal development work. At some point in the early 1980s, production and peer review were split into separate departments and Richard then headed a group of journals consisting of Journal of Physics C: Solid State Physics, Journal of Physics D: Applied Physics and Journal of Physics F: Metal Physics, Semiconductor Science and Technology, Superconductor Science and Technology, Plasma Physics and Controlled Fusion, and later Nanotechnology and Modelling and Simulation in Materials Science and Engineering. Under the new structure, journal development became an increasingly important part of his job. At about the same time, Richard was also asked to take over running Reports on Progress in Physics, which up to then had been done by the head of the IOP Journals Department, Kurt Paulus. In 1989, Journal of Physics C: Solid State Physics and Journal of Physics F: Metal Physics remerged to form JPCM. Since then, Richard has gradually shed his other journal responsibilities, except for Reports on Progress in Physics, to build up JPCM. He has worked closely with four Editors-in-Chief of Journal of Physics C: Solid State Physics, five of JPCM, five of Reports on Progress in Physics and about ten of other journals, and attended approximately 300 Editorial Board meetings. I should say that he has made my own tenure at Editor-in-Chief an easy task to learn and take on, and has been a major guiding light in the development of the journal. In 2006, Richard was honoured by the award of a Member of the British Empire (MBE) for services to science publishing. Those of us on the board were particularly pleased about this, as one is not always recognized for the effort they expend, and this award was certainly due for Richard. We are going to miss Richard a great deal, but are happy that he will remain on a part time basis to help our new Publisher, Dr Lucy Smith, and the rest of us through the transition. His retirement leaves us with a huge hole that we will have to work extremely hard to fill. Speaking for the various boards, and especially the executive board, I want to wish Richard the very best in his retirement.

  17. The behavior modification through the play of children aged 3-7 years old

    Directory of Open Access Journals (Sweden)

    Flora Lamcja (Zeqaj

    2016-03-01

    Full Text Available The integration of theory, technique and common factors in psychotherapy has gained prominence since the 1990s. Previously, it was called eclecticism, but integration has become the preferred term to describe the blending of theory, technique and common factors (Norcross, 2005. In the past, eclecticism meant to choose from various theories and techniques a therapeutic strategy that appears best for a particular client (Schaefer, 2003, .308. However, Norcross (1987 explains eclecticism as a further integration through which various theories are applied on interactive and coordinated explanations of the therapy. Psychological disorders, especially in complex children and adolescents a multifaceted treatment approach is needed (Schaefer 2003. Indeed, many clients do not come with a clearly defined diagnosis, but rather several overlapping problems due to the co morbidity of issues (such as in the cases of complex trauma resulting in overlapping attention problems, along with phobias and sexualized behaviors. The clinicians trained in one theoretical and treatment approach are finding the “one size” cannot fit in all the presenting problems that are being faced today. Due to this multidimensional aspect the play child/play therapy calls for the unique demand that the therapist should wear a lot of different hats and should be skillful in changing from one therapeutic stance to another, in order to meet the needs of the child and of the various members in the child’s life (Coonerty, 1993. In one moment, the play therapist is intensively involved in deeply evocative and conflicted play therapy the child client. At that moment, the therapist needs to deal with the child’s internal struggles, setting limits and being an educator or mediator with the child, while in the next moment the therapist should be engaged with the role of a parent, or school psychologist, or classroom teacher to assess the child’s functioning

  18. Lupus vulgaris diagnosed after 37 years: a case of delayed diagnosis.

    Science.gov (United States)

    Turan, Enver; Yurt, Nurdan; Yesilova, Yavuz; Celik, Ozgur Ilhan

    2012-05-15

    Lupus vulgaris is the most common chronic, progressive form of cutaneous tuberculosis. Lesions are generally solitary and found on the head and neck region. Cutaneous tuberculosis can present with different clinical appearances. Therefore, it does not necessarily have characteristic findings and can be difficult to diagnose. Although there were typical clinical findings, the diagnosis of our case was delayed because of its asymptomatic course.

  19. Optimism Predicts Resilience in Repatriated Prisoners of War: A 37-Year Longitudinal Study

    Science.gov (United States)

    2012-06-01

    Resilience to adult psychopathology following childhood maltreat - ment: Evidence from a community sample. Child Abuse and Neglect, 31, 211–229. doi...29 had co- morbid diagnoses, 12 had only an alcohol use disorder, and 3 were defined as not resilient on the basis of a probable preexist- ing

  20. Candidal liver abscesses and cholecystitis in a 37-year-old patient without underlying malignancy

    Institute of Scientific and Technical Information of China (English)

    Chung-Hsu Lai; Hsin-Pai Chen; Te-Li Chen; Chang-Phone Fung; Cheng-Yi Liu; Shou-Dong Lee

    2005-01-01

    We report a case of candidal liver abscesses and concomitant candidal cholecystitis in a diabetic patient, in whom differences were noted relative to those found in patients with hematologic malignancies. In our case, the proposed entry route of infection is ascending retrograde from the biliary tract. Bile and aspirated pus culture repeatedly tested positive, and blood negative, for Candida albicans and Candida glabrata. Cholecystitis was cured by percutaneous gallbladder drainage and amphotericin B therapy. The liver abscesses were successfully treated by a cumulative dosage of 750 mg amphotericin B. We conclude that in cases involving less immunocompromised patients and those without candidemia, a lower dosage of amphotericin B may be adequate in treating candidal liver abscesses.

  1. Spatiotemporal variability of the Black Sea wave climate in the last 37 years

    Science.gov (United States)

    Divinsky, B. V.; Kosyan, R. D.

    2017-03-01

    The main objective of our work is analysis of spatiotemporal variability of the Black Sea wave climate from 1979 to 2015. The analysis is based on mathematical modeling using the modern DHI MIKE 21 SW spectral wave model. Verification of the wave model was performed using numerous data of instrumental observations of wind wave parameters in the Black and Azov seas. Our studies revealed climatic trends in the spatial distribution of wave energy and made possible determining the main frequencies of wave energy fluctuations.

  2. Giant Aneursym of the Ascending Aorta 37 Years after Aortic Valve Replacement

    Directory of Open Access Journals (Sweden)

    Fabrizio Sansone

    2013-04-01

    Full Text Available Giant ascending aorta aneurysms (AAA, which are larger than 10 cm, are rare. We hereby present the case of a giant AAA of about 13 cm, incidentally detected several years after aortic valve replacement and treated according to the Cabrol technique without postoperative complications. [Arch Clin Exp Surg 2013; 2(2.000: 129-131

  3. Can short-term and small-scale experiments reflect nutrient limitation on phytoplankton in natural lakes?

    Science.gov (United States)

    Wang, Haijun; Li, Yan; Feng, Weisong; Yu, Qing; Xiao, Xucheng; Liang, Xiaomin; Shao, Jianchun; Ma, Shuonan; Wang, Hongzhu

    2016-07-01

    Whether it is necessary to reduce nitrogen (N) and/or phosphorus (P) input to mitigate lake eutrophication is controversial. The controversy stems mainly from differences in time and space in previous studies that support the contrasting ideas. To test the response of phytoplankton to various combinations of nutrient control strategies in mesocosms and the possibility of reflecting the conditions in natural ecosystems with short-term experiments, a 9-month experiment was carried out in eight 800-L tanks with four nutrient level combinations (+N+P, -N+P, +N-P, and -N-P), with an 18-month whole-ecosystem experiment in eight ~800-m 2 ponds as the reference. Phytoplankton abundance was determined by P not N, regardless of the initial TN/TP level, which was in contrast to the nutrient limitation predicted by the N/P theory. Net natural N inputs were calculated to be 4.9, 6.8, 1.5, and 3.0 g in treatments +N+P, -N+P, +N-P, and -N-P, respectively, suggesting that N deficiency and P addition may promote natural N inputs to support phytoplankton development. However, the compensation process was slow, as suggested by an observed increase in TN after 3 weeks in -N+P and 2 months in -N-P in the tank experiment, and after 3 months in -N +P and ~3 months in -N-P in our pond experiment. Obviously, such a slow process cannot be simulated in short-term experiments. The natural N inputs cannot be explained by planktonic N-fixation because N-fixing cyanobacteria were scarce, which was probably because there was a limited pool of species in the tanks. Therefore, based on our results we argue that extrapolating short-term, small-scale experiments to large natural ecosystems does not give reliable, accurate results.

  4. The Mass Composition of Ultra-high Energy Cosmic Rays Measured by New Fluorescence Detectors in the Telescope Array Experiment

    Science.gov (United States)

    Fujii, Toshihiro

    The longitudinal development of an extensive air shower reaches its maximum at a depth, Xmax, that depends on the species of the primary cosmic ray. Using a technique based on Xmax, we measure the cosmic-ray mass composition from analyses of 3.7 years of monocular mode operations with the newly constructed fluorescence detectors of the Telescope Array experiment. The Xmax analysis shows our data to be consistent with a proton dominant composition at energies above 1018.0 eV.

  5. Customer experience

    OpenAIRE

    Koperdáková, Zuzana

    2016-01-01

    Bachelor thesis deals with the theme of customer experience and terms related to this topic. The thesis consists of three parts. The first part explains the terms generally, as the experience or customer loyalty. The second part is dedicated to medotology used for Customer Experience Management. In the third part is described application of Customer Experience Management in practice, particularly in the context Touch Point Analyses in GE Money Bank.

  6. Psychology Experiments.

    Science.gov (United States)

    McGraw, Ken; Tew, Mark D.; Williams, John E.

    2001-01-01

    A goal of the PsychExperiments project was to reduce the financial burden on psychology departments for hardware/software used in their laboratories. In its third year, the PsychExperiments site now hosts 39 experiments. Over 200 classrooms worldwide have signed up as official site users and there have been nearly 10,000 data sessions conducted.…

  7. Psychology Experiments.

    Science.gov (United States)

    McGraw, Ken; Tew, Mark D.; Williams, John E.

    2001-01-01

    A goal of the PsychExperiments project was to reduce the financial burden on psychology departments for hardware/software used in their laboratories. In its third year, the PsychExperiments site now hosts 39 experiments. Over 200 classrooms worldwide have signed up as official site users and there have been nearly 10,000 data sessions conducted.…

  8. First time pregnant women's experiences in early pregnancy

    Directory of Open Access Journals (Sweden)

    Modh Carin

    2011-04-01

    Full Text Available Background: There are few studies focusing on women's experiences of early pregnancy. Medical and psychological approaches have dominated the research. Taking women's experiences seriously during early pregnancy may prevent future suffering during childbirth. Aim: To describe and understand women's first time experiences of early pregnancy. Method: Qualitative study using a phenomenological hermeneutic approach. Data were collected via tape-recorded interviews in two antenatal care units in Sweden. Twelve first time pregnant women in week 10–14, aged between 17 and 37 years participated. Results: To be in early pregnancy means for the women a life opening both in terms of life affirming and suffering. The central themes are: living in the present and thinking ahead, being in a change of new perspectives and values and being in change to becoming a mother. Conclusions: The results have implications for the midwife's encounter with the women during pregnancy. Questions of more existential nature, instead of only focusing the physical aspects of the pregnancy, may lead to an improvement in health condition and a positive experience for the pregnant woman.

  9. Sleep and Resilience: a Longitudinal 37-Year Follow-up Study of Vietnam Repatriated Prisoners of War

    Science.gov (United States)

    2013-02-01

    literature indicates two conceptualizations: as process and as outcome. Reivich and Shatte’" define resil - ience as a set of abilities (i.e., emotion...Investigation Pro- gram numbers NOMI.2010.0005 and NOMI.2011.0001. REFERENCES 1. Stores G: Sleep disorders in children and adolescents. Adv Psychiatr Treat...1999; 5: 19-29. 2. Sadeh A: Stress, trauma, and sleep in children . Child Adolesc Psychiatr Clin N Am 1996; 5: 685-700. 3. Sadeh A, Keinan G, Keren D

  10. 37 years of scientific activity in a Biochemistry Department in Brazil: patterns of growth and factors leading to increased productivity.

    Science.gov (United States)

    Gomes, Urubatã E; Oliveira, Diogo L de; Berti, Luciana C; Amaral, Olavo; Souza, Diogo O; Wofchuk, Susana T

    2011-09-01

    Scientific activity in Brazil has experienced an accelerated growth in the past decades, with an increase in productivity that greatly surpasses the international average. This growth has occurred mostly at the expense of centers of excellence in public universities, which account for the vast majority of the country's scientific output. The aim of this study was to evaluate the production of the Department of Biochemistry of a large public university in southern Brazil (Universidade Federal do Rio Grande do Sul), as well as to identify internal and external policies that have influenced this growing production profile. We have performed a historical analysis of the scientific output of this Department of Biochemistry, which accounts for a considerable share of the indexed scientific production at this university. By focusing on the temporal course of its growth and drawing correlations between scientific output and important events in the history of the Department of Biochemistry and of the Brazilian science policies, we concluded that internal factors (as the creation of a postgraduation program, collaboration among researchers, experienced abroad researchers, qualification of faculty members) and external factors (as investments in the postgraduate education, the establishment of national scientific policies, such as financial stimuli for productive researchers and evaluation systems) influence scientific productivity in Brazil.

  11. OPERA experiment

    CERN Document Server

    Komatsu, M

    2003-01-01

    OPERA is an accelerator experiment designed to explore Super- Kamiokande suggested nu//mu arrow left right nu//tau oscillation region in CNGS beam from CERN to LNGS. The key technique in OPERA is modern emulsion read out which applied to CHORUS and DONUT experiments. ECC technique which used in DONUT and OPERA has good modularity to enlarge apparatus for future Neutrino Factory experiments.

  12. Language Experience

    Science.gov (United States)

    Bugh, Marylou

    1978-01-01

    When a child uses his words and his ideas in learning to read, he also assists in the normal integration of his personality. Starting with a method of language experience developed by Sylvia Ashton-Warner, the author, a reading consultant, describes a language experience-reading program which utilizes the student's own curiosity and interests. (RK)

  13. Choice experiments

    Science.gov (United States)

    Thomas P Holmes; Wiktor L Adamawicz; Fredrik Carlsson

    2017-01-01

    There has been an explosion of interest during the past two decades in a class of nonmarket stated-preference valuation methods known as choice experiments. The overall objective of a choice experiment is to estimate economic values for characteristics (or attributes) of an environmental good that is the subject of policy analysis, where...

  14. The experience of an experience

    DEFF Research Database (Denmark)

    Rasmussen, Alexandra Marie

    2016-01-01

    This paper examines a popular phenomenon that allows us to see ourselves from various perspectives, and allows us to perpetuate moments enabling us to relive experiences in a different state of mind or at a different time. To examine the phenomenon of experiencing an experience hermeneutic...... phenomenological research was employed. The empirical data gathered in relation to this research emphasizes the experience of own experience. On a daily basis we create and are exposed to, what I have termed, the secondary experience (Exp2 ), which occurs when we review a video and/or pictures we have taken. I...... is a tool to create a particular mindset, in the developer, to generate a new way of thinking. This model is dynamic by nature and although it is not completed in every branch, it is complete in relation to experiencing your own experience. A company can apply the PoC to gain insight into primary...

  15. Collaborative experience

    DEFF Research Database (Denmark)

    Mortensen, Thomas Bøtker

    sample of firms, an establish way of measuring the outcome of product development and a new way of measuring experience. Where the previous research in this field primarily uses secondary databases, this research project collects primary data by an online questionnaire to the NPD manager from one......, that the largest effects from collaborative experience is from recent collaborative experience, since knowledge depreciates when it is not used. Methodologically contribution: The research project studies the dyad and aims at introducing, to this field of research, an established way of collecting data, a new...... of the new product development as a performance measure. Finally, where previous research primarily has used the number of collaborations as a measure of collaborative experience, this research includes the recency in the measure of collaborative experience. Results: Since data has not yet been collected...

  16. TRIO experiment

    Energy Technology Data Exchange (ETDEWEB)

    Clemmer, R.G.; Finn, P.A.; Malecha, R.F.; Misra, B.; Billone, M.C.; Bowers, D.L.; Fischer, A.K.; Greenwood, L.R.; Mattas, R.F.; Tam, S.W.

    1984-09-01

    The TRIO experiment is a test of in-situ tritium recovery and heat transfer performance of a miniaturized solid breeder blanket assembly. The assembly (capsule) was monitored for temperature and neutron flux profiles during irradiation and a sweep gas flowed through the capsule to an anaytical train wherein the amounts of tritium in its various chemical forms were determined. The capsule was designed to operate at different temperatures and sweep gas conditions. At the end of the experiment the amount of tritium retained in the solid was at a concentration of less than 0.1 wppM. More than 99.9% of tritium generated during the experiment was successfully recovered. The results of the experiment showed that the tritium inventories at the beginning and at the end of the experiment follow a relationship which appears to be characteristic of intragranular diffusion.

  17. Collaborative experience

    DEFF Research Database (Denmark)

    Mortensen, Thomas Bøtker

    Literature review: Collaborative experience has been shown to have a positive effect on the collaborative outcome in general (Anand & Khanna, 2000; Kale, Dyer & Singh, 2002). Furthermore, it has been linked to the ability to exploit the network of the firm for learning (Powell, Koput and Smith...... experience was largest the higher the hypothesized ambiguity. Theoretically contribution: This research project aims at contributing to existing literature by arguing, that collaborative experience is a moderating variable which moderates the effects on collaborative outcome from the level of complexity......, that the largest effects from collaborative experience is from recent collaborative experience, since knowledge depreciates when it is not used. Methodologically contribution: The research project studies the dyad and aims at introducing, to this field of research, an established way of collecting data, a new...

  18. Mixture Experiments

    Energy Technology Data Exchange (ETDEWEB)

    Piepel, Gregory F.

    2007-12-01

    A mixture experiment involves combining two or more components in various proportions or amounts and then measuring one or more responses for the resulting end products. Other factors that affect the response(s), such as process variables and/or the total amount of the mixture, may also be studied in the experiment. A mixture experiment design specifies the combinations of mixture components and other experimental factors (if any) to be studied and the response variable(s) to be measured. Mixture experiment data analyses are then used to achieve the desired goals, which may include (i) understanding the effects of components and other factors on the response(s), (ii) identifying components and other factors with significant and nonsignificant effects on the response(s), (iii) developing models for predicting the response(s) as functions of the mixture components and any other factors, and (iv) developing end-products with desired values and uncertainties of the response(s). Given a mixture experiment problem, a practitioner must consider the possible approaches for designing the experiment and analyzing the data, and then select the approach best suited to the problem. Eight possible approaches include 1) component proportions, 2) mathematically independent variables, 3) slack variable, 4) mixture amount, 5) component amounts, 6) mixture process variable, 7) mixture of mixtures, and 8) multi-factor mixture. The article provides an overview of the mixture experiment designs, models, and data analyses for these approaches.

  19. Researching experiences

    DEFF Research Database (Denmark)

    Gjedde, Lisa; Ingemann, Bruno

    In the beginning was - not the word - but the experience. This phenomenological approach provides the basis for this book, which focuses on how a person-in-situation experiences and constructs meaning from a variety of cultural visual events. This book presents video-based processual methods...... for researching experiences in a variety of settings ranging from the museum, to news photography, and interactive media. The research led to the development of a set of methodological tools and approaches we term the reflexivity lab. The interaction in the experimental situation between the media and body...

  20. Antimatter Experiments

    CERN Multimedia

    2004-01-01

    Antimatter should behave in identical fashion to matter if a form of spacetime symmetry called CPT invariance holds. Two experiments at CERN near Geneva are testing this hypothesis using antihydrogen atoms

  1. Wanted: Experiments

    Science.gov (United States)

    McDaniel, Floyd D.

    1974-01-01

    Describes a project to produce a series of laboratory manuals and instructional materials in which nuclear experiments are presented for the undergraduate advanced laboratory. The manuals are being compiled in the areas of physics, chemistry, geology and environmental sciences. (BR)

  2. Pixel Experiments

    DEFF Research Database (Denmark)

    Petersen, Kjell Yngve; Søndergaard, Karin; Augustesen, Christina

    2015-01-01

    Pixel Experiments The term pixel is traditionally defined as any of the minute elements that together constitute a larger context or image. A pixel has its own form and is the smallest unit seen within a larger structure. In working with the potentials of LED technology in architectural lighting...... design it became relevant to investigate the use of LEDs as the physical equivalent of a pixel as a design approach. In this book our interest has been in identifying how the qualities of LEDs can be used in lighting applications. With experiences in the planning and implementation of architectural...... elucidate and exemplify already well-known problems in relation to the experience of vertical and horizontal lighting. Pixel Experiments exist as a synergy between speculative test setups and lighting design in practice. This book is one of four books that is published in connection with the research...

  3. Authoring experience

    DEFF Research Database (Denmark)

    Knox, Jeanette Bresson Ladegaard; Svendsen, Mette Nordahl

    2015-01-01

    This article examines the storytelling aspect inphilosophizing with rehabilitating cancer patients in small Socratic dialogue groups (SDG). Recounting an experienceto illustrate a philosophical question chosen by the participantsis the traditional point of departure for the dialogicalexchange. Ho...... an experiencethrough a collaborative effort, most participants hadtheir initial experience existentially refined and the chosenconcept of which the experience served as an illustrationtransformed into a moral compass to be used in self-orientationpost cancer....

  4. The response of amphibian larvae to exposure to a glyphosate-based herbicide (Roundup WeatherMax) and nutrient enrichment in an ecosystem experiment.

    Science.gov (United States)

    Edge, Christopher; Thompson, Dean; Hao, Chunyan; Houlahan, Jeff

    2014-11-01

    Herbicides and fertilizers are widely used throughout the world and pose a threat to aquatic ecosystems. Using a replicated, whole ecosystem experiment in which 24 small wetlands were split in half with an impermeable barrier we tested whether exposure to a glyphosate-based herbicide, Roundup WeatherMax™, alone or in combination with nutrient enrichment has an effect on the survival, growth or development of amphibians. The herbicide was applied at one of two concentrations (low=210 μg a.e./L, high=2880 μg a.e./L) alone and in combination with nutrient enrichment to one side of wetlands and the other was left as an untreated control. Each treatment was replicated with six wetlands, and the experiment was repeated over two years. In the high glyphosate and nutrient enrichment treatment the survival of wood frog (Lithobates sylvaticus) larvae was lower in enclosures placed in situ on the treated sides than the control sides of wetlands. However, these results were not replicated in the second year of study and they were not observed in free swimming wood frog larvae in the wetlands. In all treatments, wood frog larvae on the treated sides of wetlands were slightly larger (<10%) than those on the control side, but no effect on development was observed. The most dramatic finding was that the abundance of green frog larvae (Lithobates clamitans) was higher on the treated sides than the control sides of wetlands in the herbicide and nutrient treatments during the second year of the study. The results observed in this field study indicate that caution is necessary when extrapolating results from artificial systems to predict effects in natural systems. In this experiment, the lack of toxicity to amphibian larvae was probably due to the fact the pH of the wetlands was relatively low and the presence of sediments and organic surfaces which would have mitigated the exposure duration. Copyright © 2014 Elsevier Inc. All rights reserved.

  5. The Experiment

    Science.gov (United States)

    Mariana Nicoara, Floare

    2016-04-01

    My name is Nicoara Floarea and I am teacher at Secondary School Calatele and I teach students from preparatory class and the second grade . They are six-eight years old. In my activity, for introducing scientific concepts to my students, I use various and active methods or traditional methods including experiments. The experiment stimulates students' curiosity, their creativity, the understanding and knowledge taught accessibility. I propose you two such experiments: The life cycle of the plants (long-term experiment, with rigorous observation time):We use beans, wheat or other; They are grown in pots and on the cotton soaked with water,keeping under students' observation protecting them ( just soak them regularly) and we waiting the plants rise. For discussions and comments of plant embryo development we use the plants which rose on the cotton soaked with water plants at the end of the first week. Last school year we had in the pot climbing beans which in May made pods. They were not too great but our experiment was a success. The students could deduce that there will develop those big beans which after drying will be planted again. The influence of light on plants (average duration experiment with the necessary observation time): We use two pots in which plants are of the same type (two geraniums), one of them is situated so as to get direct sunlight and other plant we put in a closed box. Although we wet both plants after a week we see that the plant that benefited from sunlight has turned strain in direct sunlight, developing normally in return the plant out of the box I have yellowed leaves, photosynthesis does not She has occurred . Students will understand the vital role of the Sun in plants' life, both in the classroom and in nature. The experiment is a method of teaching students extremely pleasant, with a remarkable percentage of acquiring more knowledge.

  6. Extending Experiences

    DEFF Research Database (Denmark)

    A computer game's player is experiencing not only the game as a designer-made artefact, but also a multitude of social and cultural practices and contexts of both computer game play and everyday life. As a truly multidisciplinary anthology, Extending Experiences sheds new light on the mesh...... of possibilities and influences the player engages with. Part one, Experiential Structures of Play, considers some of the key concepts commonly used to address the experience of a computer game player. The second part, Bordering Play, discusses conceptual and practical overlaps of games and everyday life...

  7. Poetic Experience

    Directory of Open Access Journals (Sweden)

    Shahab Yar Khan

    2014-01-01

    Full Text Available Nature of poetic experience is hereby redefined. The present article initially deals with the perennial nature of true poetic experience and its essential relevance to the world. It attempts to elaborate the process through which a poet is uplifted in a creative moment beyond terrestrial boundaries and is aligned with the ‘state of Perfection'. The role of successive generations of audiences in rediscovering the meaning of a poetic image is defined as life principle of all great poetry. Shakespeare is discussed as the ultimate example of this principle since his popularity remains an irreversible phenomenon

  8. Nitrogen assimilation and short term retention in a nutrient-rich tidal freshwater marsh – a whole ecosystem 15N enrichment study

    Directory of Open Access Journals (Sweden)

    N. Brion

    2006-07-01

    Full Text Available We conducted two (May 2002 and September 2003 pulse additions of 15NH4+ to the flood water inundating a tidal freshwater marsh fringing the nutrient-rich Scheldt River (Belgium and traced the fate of ammonium in the intact ecosystem. Here we report in detail the 15N uptake into the various marsh components (leaves, roots, sediment, leaf litter and invertebrate fauna, and the 15N retention on a scale of 15 days. We particularly focus on the contributions of the rooted macrophytes and the microbial community in the sediment and on plant litter. Assimilation and short term retention of 15NH4+ was low on both occasions. Only 4–9% of the added 15N trace was assimilated, corresponding to 13–22% and 8–18% of the processed 15N (i.e. not exported as 15NH4+ in May and September, respectively. In May nitrogen assimilation rate (per hour inundated was >3 times faster than in September. Macrophytes (above- and below ground were of limited importance for short term 15N retention accounting for <6% of the total 15NH4+ processed by the marsh. The less dominant herbaceous species were more important (on an area basis than the dominant reed (Phragmites australis. The microbial community colonizing the sediment and litter surfaces were responsible for most nitrogen assimilation and short-term retention in the marsh. The large reactive surface area available for microbial colonization together with direct plant uptake, are the crucial components for nitrogen assimilation, retention and transformation in nutrient-rich tidal freshwater marshes.

  9. Media experiences

    DEFF Research Database (Denmark)

    Buhl, Mie

    2010-01-01

    The paper discusses mediated experiences from the perspective of the visual modality in combination with the multimodal interaction. ICT-studies has a rapid influx of new words and concepts. Digital technology led to a need to describe the convergence of images, text and sound has taken various...

  10. Aesthetic experience.

    Science.gov (United States)

    Sirois, François J

    2008-02-01

    An initial clinical question, 'Why does an analysand talk about his/her relationship with an aesthetic object?' opens an investigation into the nature of aesthetic experience. Three principal aspects of the psychoanalytic approach are presented: sublimation, a Freudian concept concerning the vicissitudes of the drives; reparation, a Kleinian concept linked to depressive anxiety; and transformation, a concept of object-relations theory about primitive ego-states. The article discusses the psychic function of aesthetic feelings in mastering anxiety as related to ego, id and superego. The transformation of the experience of passivity is a common link underlying these aspects. Such transformation relies on tolerating ambiguous and contrary feelings within the self, fostered by contact with an aesthetic object. This balance can, however, be upset: two excessive forms of aesthetic experience ensue, namely, fascination and bewitchment. The first belongs to the experience of awe; the second can lead to claustrophobic anxiety. The initial clinical question requires an elaboration of aesthetic transference, a variant of the narcissistic transference, whereby the analysand invites the analyst to share his/her internal state as a common unspoken object.

  11. Dirac experiment

    CERN Document Server

    Gómez, F; Afanasev, L; Benayoun, M; Brekhovskikh, V; Caragheorgheopol, G; Cechák, T; Chiba, M; Constantinescu, S; Doudarev, A; Dreossi, D; Drijard, Daniel; Ferro-Luzzi, M; Gallas, M V; Gerndt, J; Giacomich, R; Gianotti, P; Goldin, D; Gorin, A; Gortchakov, O; Guaraldo, C; Hansroul, M; Hosek, R; Iliescu, M; Jabitski, M; Kalinina, N; Karpoukhine, V; Kluson, J; Kobayshi, M; Kokkas, P; Komarov, V; Koulikov, A; Kouptsov, A; Krouglov, V; Krouglova, L; Kuroda, K I; Lanaro, A; Lapshine, B; Lednicky, R; Leruste, P; Levisandri, P; López-Aguera, A; Lucherini, V; Mäki, T; Manuilov, I; Montanet, L; Narjoux, J L; Nemenov, L; Nikitin, M; Nunez Pardo, T; Okada, K; Olchevskii, V; Pazos, A; Pentia, M; Penzo, Aldo L; Perreau, J M; Petrascu, C; Pló, M; Ponta, T; Pop, D; Riazantsev, A; Rodríguez, J M; Rodriguez Fernandez, A; Rykaline, V; Santamarina, C; Saborido, J; Schacher, J; Sidorov, A; Smolik, J; Takeutchi, F; Tarasov, A; Tauscher, L; Tobar, M J; Trusov, S; Vasquez, P; Vlachos, S; Yazkov, V; Yoshimura, Y; Zrelov, P

    2001-01-01

    The main objective of DIRAC experiment is the measurement of the lifetime tau of the exotic hadronic atom consisting of pi /sup +/ and pi /sup -/ mesons. The lifetime of this atom is determined by the decay mode pi /sup +/ pi /sup -/ to pi /sup 0/ pi /sup 0/ due to the strong interaction. Through the precise relationship between the lifetime and the S-wave pion-pion scattering length difference a/sub 0/-a/sub 2/ for isospin 0 and 2 (respectively), a measurement of tau with an accuracy of 10% will allow a determination of a/sub 0/-a/sub 2/at a 5% precision level. Pion-pion scattering lengths have been calculated in the framework of chiral perturbation theory with an accuracy below 5%. In this way DIRAC experiment will provide a crucial test of the chiral symmetry breaking scheme in QCD effective theories at low energies. (19 refs).

  12. Crucible Experiments

    Science.gov (United States)

    Jiang, Min; Wang, Xin-Hua; Pak, Jong-Jin

    2014-08-01

    ZrO2 crucible experiments were carried out in the laboratory to study the formation of low-melting-point inclusions in steel, during which aluminum deoxidization and a high-basicity calcium aluminate refining slag (CaO/SiO2: 6 to 8, Al2O3 40 to 45 pct) were used. Four experiments were done with different slag/steel reaction times (30, 60, 90, and 180 minutes). It was found that inclusions were mainly composed of CaO-Al2O3-ZrO2 with very limited SiO2, in spherical morphology and with sizes mainly less than 5 μm. They can be classified into two types according to the ZrO2 content. The first type contained much lower ZrO2, whereas a much higher level of ZrO2 was detected in the other type. An evolution of inclusions with the reaction time was observed and studied. The obtained results indicated that chemical compositions of inclusions were widely scattered in the CaO-Al2O3-ZrO2 phase diagram after 30 min reaction. However, the composition of inclusions became much more uniform and concentrated in low-melting-temperature regions at 60, 90, and 180 minutes, which would be favorable to prevent nozzle clogging and fatigue problems. Compared with the authors' previous results obtained in MgO crucible experiments, it was found that low-melting-temperature inclusions can be targeted in shorter time in ZrO2 crucible experiments, without any degradation of cleanliness.

  13. Experiment summary

    CERN Document Server

    Rossi, Andrea

    2015-01-01

    The measurement of the production of particles coming from hard scattering processes covers a fundamental role in the characterization of the system formed in heavy-ion collisions, allowing to probe the microscopic processes underlying the interaction of high energy partons with the medium. An impressive amount of measurements related to jet, quarkonia, open heavy flavor, and electroweak signal production in nucleus-nucleus as well as p(d)-nucleus collisions was delivered by experiments at RHIC and LHC in past years. In these proceedings, the main experimental results presented during the Hard Probes conference are summarized.

  14. QUBIC Experiment

    CERN Document Server

    Stolpovskiy, Mikhail

    2016-01-01

    QUBIC is a ground-based experiment, currently under construction, that uses the novel bolometric interferometry technology. It is dedicated to measure the primordial B-modes of CMB. As a bolometric interferometer, QUBIC has high sensitivity and good systematics control. Dust contamination is controlled by operating with two bands -- 150 and 220 GHz. There are two possible sites for QUBIC: either Concordia station in Antarctic or in the Argentinian Puna desert. It is planned to see the first light in 2018-2019.

  15. Media experiences

    DEFF Research Database (Denmark)

    Buhl, Mie

    2010-01-01

    be interpreted as legible signs, i.e. their meaning can be translated into written or oral language (Kress and van Leuwen 1996; Kress 2003). However, the embodied sense-based qualities involved in images and visualisations cannot be fully comprehended from a discursive perspective. Images and visualisations draw...... on their particular iconic systems of meaning perceived through form, lines, contrasts, colours, structures textures, rhythm and composite qualities with embedded interdependent codes and culturally conditioned potential for construction of knowledge and meaning. Mediated experience adds new perspectives...

  16. Thomson Experiment

    CERN Multimedia

    This experiment, conducted by JJ Thomson in 1897, established the existence of the electron. Thomson won the Nobel physics prize for this work in 1906. A beam of electrons crosses the chamber emitting blue light. Adding an electric field (E) or a magnetic field (B) exerts a force on the moving electrons.Use switch E to turn on the electric field in the chamber. Then, by turning knob B, you can increase the current in the coils, generating a magnetic field. By balancing the electric and magnetic fields, Thomson was able to keep the electron beam level and deduce the ratio of the electron's charge to its mass.

  17. Experimenting with a design experiment

    Directory of Open Access Journals (Sweden)

    Bakker, Judith

    2012-12-01

    Full Text Available The design experiment is an experimental research method that aims to help design and further develop new (policy instruments. For the development of a set of guidelines for the facilitation of citizens’ initiatives by local governments, we are experimenting with this method. It offers good opportunities for modeling interventions by testing their instrumental validity –the usefulness for the intended practical purposes. At the same time design experiments are also useful for evaluating the empirical validity of theoretical arguments and the further development of these arguments in the light of empirical evidence (by using e.g. the technique of pattern matching. We describe how we have applied this methodology in two cases and discuss our research approach. We encountered some unexpected difficulties, especially in the cooperation with professionals and citizens. These difficulties complicate the valid attribution of causal effects to the use of the new instrument. However, our preliminary conclusion is that design experiments are useful in our field of study

    El experimento de diseño es un método de investigación experimental que tiene como objetivo diseñar y desarrollar posteriormente nuevas herramientas (políticas. En este artículo experimentamos con este método para desarrollar un conjunto de directrices que permitan a los gobiernos locales facilitar las iniciativas ciudadanas. El método ofrece la oportunidad de modelar las intervenciones poniendo a prueba su validez instrumental (su utilidad para el fin práctico que se proponen. Al mismo tiempo, los experimentos de diseño son útiles también para evaluar la validez empírica de las discusiones teóricas y el posterior desarrollo de esas discusiones a la luz de la evidencia empírica (usando, por ejemplo, técnicas de concordancia de patrones. En este trabajo describimos cómo hemos aplicado este método a dos casos y discutimos nuestro enfoque de

  18. Rutherford Experiment

    CERN Multimedia

    This experiment, carried out by Ernest Rutherford in 1910, revolutionised understanding of the structure of matter, showing that almost all the mass of an atom is concentrated in a very small, positively charged nucleus. Alpha particles emitted at bombard a thin gold foil. A detector records the number of alpha particles crossing the foil per second. The number is displayed on the counter and updated every minute. Alpha particles are helium nuclei, they consist of 2 protons and 2 neutrons. Rotate the central knob to change the angle between the foil and the detector. The number of alpha particles detected depends on the angle. Most of the alpha particles travel straight through the foil because the gold atoms are mainly empty space. However some hit the atomic nucleus and are deflected.

  19. Management Experiences

    Directory of Open Access Journals (Sweden)

    Gheorghe Popovici

    2016-12-01

    Full Text Available The paper presents the results of the survey about the changes in modern management, identified from the experience of Romanian managers. By this online study one presents both the obstacles encountered and the recommendations for such a type of management that the present and future mangers must take into account. What motivated the respondent Romanian managers most to open their own business is the independence it offered them. They work in the field they have liked since they were young. The second reason was the perspective to have an additional income from the business development. The third argument in favour of opening a business is the possibility to assure the balance between personal life and career.

  20. Experiment Dashboard for the LHC Experiments

    CERN Document Server

    Andreeva, Julia; Gaidioz, Benjamin; Herrala, Juha; Maier, Gerhild; Rocha, Ricardo; Saiz, Pablo; Sidorova, Irina; CERN. Geneva. IT Department

    2007-01-01

    The goal of the Grid is to provide a coherent access to distributed computing resources. All LHC experiments are using several Grid infrastructures and a variety of the middleware flavors. Due to the complexity and heterogeinity of a distributed system the monitoring represents a challenging task. Independently of the underlying platform , the experiments need to ave a complete and uniform picture of their activities on the Grid ideally seen by the users as a single powerful computing resource. Overall operation of the infrastructure used by experiments is defined both by the quality of the Grid and the quality of the tools and services developed/used by the experiments. Correspondingly the required monitoring information should combine both Grid-related and experiment/application specific data. On the other hand, users of the LHC experiments have various roles and need different levels of details regarding monitoring data. The paper will focus on the Grid monitoring from the experiment/user perspectives with...

  1. The User Experience

    Science.gov (United States)

    Schmidt, Aaron

    2010-01-01

    User experience (UX) is about arranging the elements of a product or service to optimize how people will interact with it. In this article, the author talks about the importance of user experience and discusses the design of user experiences in libraries. He first looks at what UX is. Then he describes three kinds of user experience design: (1)…

  2. The User Experience

    Science.gov (United States)

    Schmidt, Aaron

    2010-01-01

    User experience (UX) is about arranging the elements of a product or service to optimize how people will interact with it. In this article, the author talks about the importance of user experience and discusses the design of user experiences in libraries. He first looks at what UX is. Then he describes three kinds of user experience design: (1)…

  3. Waist-to-height ratio, waist circumference and BMI as indicators of percentage fat mass and cardiometabolic risk factors in children aged 3-7 years

    NARCIS (Netherlands)

    Sijtsma, Anna; Bocca, Gianni; L'abée, Carianne; Liem, Eryn T; Sauer, Pieter J J; Corpeleijn, Eva

    Objective: To assess whether waist-to-height-ratio (WHtR) is a better estimate of body fat percentage (BF %) and a better indicator of cardiometabolic risk factors than BMI or waist circumference (WC) in young children. Methods: WHtR, WC and BMI were measured by trained staff according to

  4. Secondary postpartum haemorrhage - a underappreciated danger. A retrospective review of the incidence of hysterectomy for the 37 years at Holles St Hospital

    LENUS (Irish Health Repository)

    2011-02-01

    Institute of Obstetricians & Gynaecologists, RCPI Four Provinces Meeting, Junior Obstetrics & Gynaecology Society Annual Scientific Meeting, Royal Academy of Medicine in Ireland Dublin Maternity Hospitals Reports Meeting, Nov 2010

  5. Morbidity and Mortality in 7,684 Women According to Personal Hair Dye Use: The Copenhagen City Heart Study followed for 37 Years

    Science.gov (United States)

    2016-01-01

    Background Permanent hair dye contains aromatic amines which are carcinogenic, and can cause allergic skin reactions. In the long term personal use of hair dye might therefore influence both morbidity and mortality. Objectives We tested the hypothesis that personal use of hair dye in women is associated with increased morbidity and mortality in the general population. Methods We included 7,684 women from the Copenhagen City Heart Study with information on the use of personal hair dye. We assessed the risk of cancer, skin diseases, other morbidities, and mortality during a median follow-up of 27 years (range 0–37). Results The multivariable adjusted hazard ratio for malignant melanoma in women with versus without personal use of hair dye was 2.07 (95% confidence interval 1.25–3.42). There was no increased risk of other cancer types. For other skin diseases and other major causes of morbidity we found no differences between the two groups, except for a minor excess of digestive diseases and increased risk of Parkinson’s disease among women using hair dye. Finally, we found no difference in all-cause mortality comparing women using personal hair dye or not. After correction for multiple comparisons, none of the results remained significant. However, in sensitivity analysis the excess risk of malignant melanoma remained increased with a hazard ratio of 2.58 (95%CI 1.33–5.03) among users of personal hair dye. Conclusions Personal use of hair dye does not have major influences on morbidity and mortality. Our finding of a 2-fold risk of malignant melanoma in women using hair dye is hypothesis generating. PMID:26986063

  6. The residency program in social medicine of Montefiore Medical Center: 37 years of mission-driven, interdisciplinary training in primary care, population health, and social medicine.

    Science.gov (United States)

    Strelnick, A H; Swiderski, Debbie; Fornari, Alice; Gorski, Victoria; Korin, Eliana; Ozuah, Philip; Townsend, Janet M; Selwyn, Peter A

    2008-04-01

    Founded in 1970 to train physicians to practice in community health centers and underserved areas, the Residency Program in Social Medicine (RPSM) of Montefiore Medical Center, Bronx, New York, has graduated 562 board-eligible family physicians, general internists, and pediatricians whose careers fulfill this mission. The RPSM was a model for federal funding for primary care residency programs and has received Title VII grants during most of its history. The RPSM has tailored its mission and structured its curriculum to promote a community and population orientation and to provide the requisite knowledge and skills for integrating social medicine into clinical practice. Six unique hallmarks of RPSM training are (1) mission-oriented resident recruitment/selection and self-management, (2) interdisciplinary collaborative training among primary care professionals, (3) community-health-center-based and community-oriented primary care education, (4) biopsychosocial and ecological family systems curriculum, (5) the social medicine core curriculum and projects, and (6) grant support through Title VII. These hallmark curricular, training, and funding elements, in which population health is deeply embedded, have been carefully evaluated, regularly revised, and empirically validated since the program's inception. Practice outcomes for RPSM graduates as leaders in and advocates for population health and the care of underserved communities are described and discussed in this case study.

  7. Real Life Experiences with Experience Design

    DEFF Research Database (Denmark)

    Dalsgård, Peter; Halskov, Kim

    2006-01-01

    Experience Design is an emergent field of study, and various approaches to the field abound. In this paper, we take a pragmatic approach to identifying key aspects of an experience design process, by reporting on a project involving the design of experience-oriented applications of interactive...... technologies for knowledge dissemination and marketing, in cooperation with public institutions and businesses. We argue that collaborative formulation of core design intentions and values is a valuable instrument in guiding experience design processes, and present three cases from this project, two of which...... the installations, the core values established to guide the design process and the intended use contexts. We argue that the installations present a broad spectrum of experience design installations that can assist designers in understanding the relations between core values, intentions, use context and interface...

  8. Structural Assembly Demonstration Experiment (SADE) experiment design

    Science.gov (United States)

    Akin, D. L.; Bowden, M. L.

    1982-03-01

    The Structural Assembly Demonstration Experiment concept is to erect a hybrid deployed/assembled structure as an early space experiment in large space structures technology. The basic objectives can be broken down into three generic areas: (1) by performing assembly tasks both in space and in neutral buoyancy simulation, a mathematical basis will be found for the validity conditions of neutral buoyancy, thus enhancing the utility of water as a medium for simulation of weightlessness; (2) a data base will be established describing the capabilities and limitations of EVA crewmembers, including effects of such things as hardware size and crew restraints; and (3) experience of the M.I.T. Space Systems Lab in neutral buoyancy simulation of large space structures assembly indicates that the assembly procedure may create the largest loads that a structure will experience during its lifetime. Data obtained from the experiment will help establish an accurate loading model to aid designers of future space structures.

  9. The Social Experiment Market

    OpenAIRE

    David Greenberg; Mark Shroder; Matthew Onstott

    1999-01-01

    In social experiments, individuals, households, or organizations are randomly assigned to two or more policy interventions. Elsewhere, we have summarized 143 experiments completed by autumn 1996. Here, we use the information we have gathered on these experiments and findings from informal telephone interviews to investigate the social experiment market--the buyers and sellers in the market that governs the production of experiments. We discuss target populations, types of interventions tested...

  10. Adaptive structures flight experiments

    Science.gov (United States)

    Martin, Maurice

    The topics are presented in viewgraph form and include the following: adaptive structures flight experiments; enhanced resolution using active vibration suppression; Advanced Controls Technology Experiment (ACTEX); ACTEX program status; ACTEX-2; ACTEX-2 program status; modular control patch; STRV-1b Cryocooler Vibration Suppression Experiment; STRV-1b program status; Precision Optical Bench Experiment (PROBE); Clementine Spacecraft Configuration; TECHSAT all-composite spacecraft; Inexpensive Structures and Materials Flight Experiment (INFLEX); and INFLEX program status.

  11. Popper's Thought Experiment Reinvestigated

    CERN Document Server

    Richardson, Chris D

    2011-01-01

    Popper's original thought experiment probed some fundamental and subtle rules of quantum mechanics. Two recent experiments have tested Popper's hypothesis, but they seem to give contrasting results and one suggests a violation of Heisenberg's uncertainty principle. The equations governing these two experiments and Popper's thought experiment will be derived from basic principles. The experimental constants will be inputted and it will show that the two experiments agree with each other. It will be shown that no uncertainty relations are violated and that Popper's thought experiment was fundamentally flawed.

  12. Experiment WA1 (CDHS Neutrino Experiment)

    CERN Multimedia

    1977-01-01

    Experiment WA1, also known under CDHS (CERN, Dortmund, Heidelberg, Saclay; spokesman Jack Steinberger), was the first neutrino experiment on the SPS, in its West Area. Magnetized iron (with a toroidal field) forms the core of the detector. On its outside we see drift chambers and photomultipliers (detecting the light from the plastic scintillators further in). Peter Schilly is wearing a white coat. See also CERN Annual Report 1976, p.57.

  13. The AMS experiment

    CERN Multimedia

    Laurent Guiraud

    1999-01-01

    The Alpha Magnetic Spectrometer (AMS) detector will be installed as a particle physics experiment on the International Space Station. It will look for antimatter pockets in space. AMS is a CERN recognised experiment.

  14. Future Solar Neutrino Experiments

    Energy Technology Data Exchange (ETDEWEB)

    Nakahata, M. [Kamioka Observatory, Institute for Cosmic Ray research, University of Tokyo, Higashi-Mozumi, Kamioka-cho, Hida-shi, Gifu, Japan, 506-1205 (Japan)]. E-mail: nakahata@suketto.icrr.u-tokyo.ac.jp

    2005-08-15

    The value of future solar neutrino experiments is discussed from particle physics and astrophysics points of view based on current understanding of solar neutrino oscillations. R and D statuses of future experiments are also discussed.

  15. Experiments in Magnetohydrodynamics

    Science.gov (United States)

    Rayner, J. P.

    1970-01-01

    Describes three student experiments in magnetohydrodynamics (MHD). In these experiments, it was found that the electrical conductivity of the local water supply was sufficient to demonstrate effectively some of the features of MHD flowmeters, generators, and pumps. (LC)

  16. Prioritized Experience Replay

    OpenAIRE

    Schaul, Tom; Quan, John; Antonoglou, Ioannis; Silver, David

    2015-01-01

    Experience replay lets online reinforcement learning agents remember and reuse experiences from the past. In prior work, experience transitions were uniformly sampled from a replay memory. However, this approach simply replays transitions at the same frequency that they were originally experienced, regardless of their significance. In this paper we develop a framework for prioritizing experience, so as to replay important transitions more frequently, and therefore learn more efficiently. We u...

  17. Customer Experience Management Overview

    OpenAIRE

    Havíř, David

    2016-01-01

    Purpose of the article: The purpose of this paper is to examine the phenomenon of customer experience and customer experience management through years and summarize recent knowledge in this area. Methodology/methods: The paper is built upon secondary research of research papers of renowned authors in the area of customer experience management. Scientific aim: The aim of the article is to find out potential avenues of further research. Findings: Findings confirmed that customer experience is s...

  18. Organic chemistry experiment

    Energy Technology Data Exchange (ETDEWEB)

    Mun, Seok Sik

    2005-02-15

    This book deals with organic chemistry experiments, it is divided five chapters, which have introduction, the way to write the experiment report and safety in the laboratory, basic experiment technic like recrystallization and extraction, a lot of organic chemistry experiments such as fischer esterification, ester hydrolysis, electrophilic aromatic substitution, aldol reaction, benzoin condensation, wittig reaction grignard reaction, epoxidation reaction and selective reduction. The last chapter introduces chemistry site on the internet and way to find out reference on chemistry.

  19. Visual experience and blindsight

    DEFF Research Database (Denmark)

    Overgaard, Morten

    2011-01-01

    Blindsight is classically defined as residual visual capacity, e.g., to detect and identify visual stimuli, in the total absence of perceptual awareness following lesions to V1. However, whereas most experiments have investigated what blindsight patients can and cannot do, the literature contains...... several, often contradictory, remarks about remaining visual experience. This review examines closer these remarks as well as experiments that directly approach the nature of possibly spared visual experiences in blindsight....

  20. The Experiment Factory: standardizing behavioral experiments

    Directory of Open Access Journals (Sweden)

    Vanessa V Sochat

    2016-04-01

    Full Text Available The administration of behavioral and experimental paradigms for psychology research is hindered by lack of a coordinated effort to develop and deploy standardized paradigms. While several frameworks (de Leeuw (2015; McDonnell et al. (2012; Mason and Suri (2011; Lange et al. (2015 have provided infrastructure and methods for individual research groups to develop paradigms, missing is a coordinated effort to develop paradigms linked with a system to easily deploy them. This disorganization leads to redundancy in development, divergent implementations of conceptually identical tasks, disorganized and error-prone code lacking documentation, and difficulty in replication. The ongoing reproducibility crisis in psychology and neuroscience research (Baker (2015; Open Science Collaboration (2015 highlights the urgency of this challenge: reproducible research in behavioral psychology is conditional on deployment of equivalent experiments. A large, accessible repository of experiments for researchers to develop collaboratively is most efficiently accomplished through an open source framework. Here we present the Experiment Factory, an open source framework for the development and deployment of web-based experiments. The modular infrastructure includes experiments, virtual machines for local or cloud deployment, and an application to drive these components and provide developers with functions and tools for further extension. We release this infrastructure with a deployment (http://www.expfactory.org that researchers are currently using to run a set of over 80 standardized web-based experiments on Amazon Mechanical Turk. By providing open source tools for both deployment and development, this novel infrastructure holds promise to bring reproducibility to the administration of experiments, and accelerate scientific progress by providing a shared community resource of psychological paradigms.

  1. The Experiment Factory: Standardizing Behavioral Experiments

    Science.gov (United States)

    Sochat, Vanessa V.; Eisenberg, Ian W.; Enkavi, A. Zeynep; Li, Jamie; Bissett, Patrick G.; Poldrack, Russell A.

    2016-01-01

    The administration of behavioral and experimental paradigms for psychology research is hindered by lack of a coordinated effort to develop and deploy standardized paradigms. While several frameworks (Mason and Suri, 2011; McDonnell et al., 2012; de Leeuw, 2015; Lange et al., 2015) have provided infrastructure and methods for individual research groups to develop paradigms, missing is a coordinated effort to develop paradigms linked with a system to easily deploy them. This disorganization leads to redundancy in development, divergent implementations of conceptually identical tasks, disorganized and error-prone code lacking documentation, and difficulty in replication. The ongoing reproducibility crisis in psychology and neuroscience research (Baker, 2015; Open Science Collaboration, 2015) highlights the urgency of this challenge: reproducible research in behavioral psychology is conditional on deployment of equivalent experiments. A large, accessible repository of experiments for researchers to develop collaboratively is most efficiently accomplished through an open source framework. Here we present the Experiment Factory, an open source framework for the development and deployment of web-based experiments. The modular infrastructure includes experiments, virtual machines for local or cloud deployment, and an application to drive these components and provide developers with functions and tools for further extension. We release this infrastructure with a deployment (http://www.expfactory.org) that researchers are currently using to run a set of over 80 standardized web-based experiments on Amazon Mechanical Turk. By providing open source tools for both deployment and development, this novel infrastructure holds promise to bring reproducibility to the administration of experiments, and accelerate scientific progress by providing a shared community resource of psychological paradigms. PMID:27199843

  2. Double beta decay experiments

    CERN Document Server

    Barabash, A S

    2011-01-01

    The present status of double beta decay experiments is reviewed. The results of the most sensitive experiments are discussed. Proposals for future double beta decay experiments with a sensitivity to the $$ at the level of (0.01--0.1) eV are considered.

  3. The Concerned Observer Experiment.

    Science.gov (United States)

    Rabiger, Michael

    1991-01-01

    Describes a classroom experiment--the "concerned observer" experiment--for production students that dramatizes basic film language by relating it to several levels of human observation. Details the experiment's three levels, and concludes that film language mimics wide-ranging states of human emotion and ideological persuasion. (PRA)

  4. The Concerned Observer Experiment.

    Science.gov (United States)

    Rabiger, Michael

    1991-01-01

    Describes a classroom experiment--the "concerned observer" experiment--for production students that dramatizes basic film language by relating it to several levels of human observation. Details the experiment's three levels, and concludes that film language mimics wide-ranging states of human emotion and ideological persuasion. (PRA)

  5. Designing Urban Experiences

    DEFF Research Database (Denmark)

    Jantzen, Christian; Vetner, Mikael

    2008-01-01

    traditional urban planning aspects such as infrastructure, environmental factors and aesthetics, but has also dealt with the design of urban experiences. Through an introduction of the framework of the structure of experiences, this article examines how urban experiences can be understood and analysed...

  6. Leisure experience and imagination

    NARCIS (Netherlands)

    Lengkeek, J.

    2001-01-01

    Holiday-makers experience the places where they are on holiday in different ways. Back in 1979, Erik Cohen introduced his 'modes of tourist experience'. Cohen's approach was promising for better understanding 'experiences' in a phenomenological way but very little happened afterwards with his 'modes

  7. Experiments in physical chemistry

    CERN Document Server

    Wilson, J M; Denaro, A R

    1968-01-01

    Experiments in Physical Chemistry, Second Edition provides a compilation of experiments concerning physical chemistry. This book illustrates the link between the theory and practice of physical chemistry. Organized into three parts, this edition begins with an overview of those experiments that generally have a simple theoretical background. Part II contains experiments that are associated with more advanced theory or more developed techniques, or which require a greater degree of experimental skill. Part III consists of experiments that are in the nature of investigations wherein these invest

  8. Future Outlook: Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Yoichiro [Kamioka, Observatory, Institute for Cosmic Ray Research, University of Tokyo, and Institute for the Physics and Mathematics of the Universe, University of Tokyo. 456 Higashi-Mozumi, Kamioka, Hida-city, Gifu, 506-1205 Japan (Japan)], E-mail: suzuki@suketto.icrr.u-tokyo.ac.jp

    2008-11-01

    The personal view for the next to the next neutrino detector, the ultimate experiment, is discussed. Considering the size, cost and head winds against the basic science, the ultimate experiment will be the only experiment in the world. Here two such experiments one for the neutrino oscillation and the other for the double beta decay were discussed. The ultimate experiment needs to include a bread and butter science and to have a discovery potential for an unexpected phenomenon. There are many technical challenges and international co-operations are absolutely necessary.

  9. Virtual neutron scattering experiments

    DEFF Research Database (Denmark)

    Overgaard, Julie Hougaard; Bruun, Jesper; May, Michael

    2017-01-01

    We describe how virtual experiments can be utilized in a learning design that prepares students for hands-on experiments at large-scale facilities. We illustrate the design by showing how virtual experiments are used at the Niels Bohr Institute in a master level course on neutron scattering....... In the last week of the course, students travel to a large-scale neutron scattering facility to perform real neutron scattering experiments. Through student interviews and survey answers, we argue, that the virtual training prepares the students to engage more fruitfully with experiments by letting them focus...... on physics and data rather than the overwhelming instrumentation. We argue that this is because they can transfer their virtual experimental experience to the real-life situation. However, we also find that learning is still situated in the sense that only knowledge of particular experiments is transferred...

  10. Virtual neutron scattering experiments

    DEFF Research Database (Denmark)

    Overgaard, Julie Hougaard; Bruun, Jesper; May, Michael

    2016-01-01

    We describe how virtual experiments can be utilized in a learning design that prepares students for hands-on experiments at large-scale facilities. We illustrate the design by showing how virtual experiments are used at the Niels Bohr Institute in a master level course on neutron scattering....... In the last week of the course, students travel to a large-scale neutron scattering facility to perform real neutron scattering experiments. Through student interviews and survey answers, we argue, that the virtual training prepares the students to engage more fruitfully with experiments by letting them focus...... on physics and data rather than the overwhelming instrumentation. We argue that this is because they can transfer their virtual experimental experience to the real-life situation. However, we also find that learning is still situated in the sense that only knowledge of particular experiments is transferred...

  11. Experiments with Individual Photons

    Science.gov (United States)

    Beck, Mark

    2004-05-01

    I describe several different experiments we have performed with individual photons. For example, while well known experiments involving phenomena such as the photoelectric effect and Compton scattering strongly suggest the existence of photons, they do not prove the existence of light quanta. To prove the existence of light quanta one must perform an experiment whose results cannot be explained using classical waves. We have performed such an experiment--it demonstrates the localization of light quanta by showing that a single photon only goes one way when it leaves a beamsplitter [1]. In a second experiment we demonstrate that this single photon will interfere with itself when it transits an interferometer. The experiments have been performed by undergraduates, and the goal of this project is to develop a series of experiments exploring fundamental aspects of quantum mechanics for an undergraduate teaching lab. [1] P. Grangier, G. Roger and A. Aspect, Europhys. Lett. 1, 173 (1986).

  12. Social experience infrastructure

    DEFF Research Database (Denmark)

    Kvistgaard, Peter

    2006-01-01

    Using the case of Kühlungsborn in Mecklenburg-Vorpommern as an example of a resort in which social experience infrastructure plays a pivotal role in the ongoing success of attracting German tourists from especially Berlin, Hamburg and Hanover it is the aim of this article in a descriptive...... and explorative fashion to share with others thoughts and ideas concerning the development of new ways to construct/reconstruct recreational spaces with a better coherence with regard to designing experiences. This article claims that it is possible to design recreational spaces with good social experience...... infrastructure in order to create experience spaces for personal experiences (in line with Schultze’s social constructivist view of experiences) without completely adhering to the economic rationalist thoughts and guidelines of Pine & Gilmore that claim that experiences can be designed and controlled...

  13. Popper's Thought Experiment Reinvestigated

    Science.gov (United States)

    Richardson, Chris; Dowling, Jonathan

    2012-02-01

    Karl Popper posed an interesting thought experiment in 1934. With it, he meant to question the completeness of quantum mechanics. He claimed that the notion of quantum entanglement leads to absurd scenarios that cannot be true in real life and that an implementation of his thought experiment would not give the results that QM predicts. Unfortunately for Popper, it has taken until recently to perform experiments that test his claims. The results of the experiments do not refute QM as Popper predicted, but neither do they confirm what Popper claimed QM predicted. Kim and Shih implemented Popper's thought experiment in the lab. The results of the experiment are not clear and have instigated many interpretations of the results. The results show some correlation between entangled photons, but not in the way that Popper thought, nor in the way a simple application of QM might predict. A ghost-imaging experiment by Strekalov, et al. sheds light on the physics behind Popper's thought experiment, but does not try to directly test it. I will build the physics of Popper's thought experiment from the ground up and show how the results of both of these experiments agree with each other and the theory of QM, but disprove Popper.

  14. Experiment, right or wrong

    CERN Document Server

    Franklin, Allan

    2008-01-01

    In Experiment, Right or Wrong, Allan Franklin continues his investigation of the history and philosophy of experiment presented in his previous book, The Neglect of Experiment. In this new study, Franklin considers the fallibility and corrigibility of experimental results and presents detailed histories of two such episodes: 1) the experiment and the development of the theory of weak interactions from Fermi's theory in 1934 to the V-A theory of 1957 and 2) atomic parity violation experiments and the Weinberg-Salam unified theory of electroweak interactions of the 1970s and 1980s. In these episodes Franklin demonstrates not only that experimental results can be wrong, but also that theoretical calculations and the comparison between experiment and theory can also be incorrect. In the second episode, Franklin contrasts his view of an "evidence model" of science in which questions of theory choice, confirmation, and refutation are decided on the basis of reliable experimental evidence, with that proposed by the ...

  15. Reactor Neutrino Experiments

    OpenAIRE

    Cao, Jun

    2007-01-01

    Precisely measuring $\\theta_{13}$ is one of the highest priority in neutrino oscillation study. Reactor experiments can cleanly determine $\\theta_{13}$. Past reactor neutrino experiments are reviewed and status of next precision $\\theta_{13}$ experiments are presented. Daya Bay is designed to measure $\\sin^22\\theta_{13}$ to better than 0.01 and Double Chooz and RENO are designed to measure it to 0.02-0.03. All are heading to full operation in 2010. Recent improvements in neutrino moment measu...

  16. Qualitative experiments in psychology

    DEFF Research Database (Denmark)

    Wagoner, Brady

    2015-01-01

    In this article, I explore the meaning of experiments in early twentieth century psychology, focusing on the qualitative experimental methodology of psychologist Frederic BARTLETT. I begin by contextualizing BARTLETT's experiments within the continental research tradition of his time, which...... and extensions" of BARTLETT's experiments, demonstrating how his methodology was progressively changed and misunderstood over time. An argument is made for re-introducing an open, qualitative and idiographic experimental method similar to the one BARTLETT practiced....

  17. Experience Communication and Aesthetics

    DEFF Research Database (Denmark)

    Thorlacius, Lisbeth

    In this article the term "experience communication" will be introduced and discussed. It will be illustrated how different concepts of aesthetical experiences are an integrated part of experience communication and how these concepts are produced within the industries of consumerism, branding...... which was a given to something which each human being has to manage individually. As a consequence the human being experiences an increasing sense of insecurity and restless seeking after identity and recognition, which is reflected in an increasing demand of among other things self...

  18. Designing learning experiences

    National Research Council Canada - National Science Library

    Collins, Jannette

    2007-01-01

    Creation of significant learning experiences follows basic steps of instructional design related to situational factors, goals and objectives, feedback and evaluation methods, teaching and learning...

  19. Linking consumer experiences

    DEFF Research Database (Denmark)

    Smed, Karina Madsen

    Consumers consume products in various ways serving a number of purposes. Much attention has been paid to experiences attached to consumption, sometimes very explicitly, e.g. in tourism, the essence of which is experiences of various sorts, but often also implicitly as internalised experiences...... become part of the individual self, worldview, and behaviour. This paper seeks to explore links between consumer experiences through the exploration of narrative sequences in travel blogs. Findings indicate that non-consumption is a central element to the bloggers and also indicative of a community...

  20. Teaching Knowledge Engineering: Experiences

    DEFF Research Database (Denmark)

    Andersen, Tom; Hartvig, Susanne C

    1998-01-01

    Includes description of experiences gained by teaching KE in construction domains. It outlines good starting points and overall guidance to education in applied AI.......Includes description of experiences gained by teaching KE in construction domains. It outlines good starting points and overall guidance to education in applied AI....

  1. On the Poggendorff Experiment

    Science.gov (United States)

    Coelho, Ricardo Lopes; Silva, P. A. S.; Borges, Paulo de Faria

    2015-01-01

    Poggendorff showed experimentally, in the middle of the 19th century, that the weight of an Atwood machine is reduced when it is brought to motion. His experiment has been revisited from time to time, making use of instrumentation that reflects the technological development of the moment. In this paper, the evolution of the experiment is briefly…

  2. Fluorescence Experiments with Quinine

    Science.gov (United States)

    O'Reilly, James E.

    1975-01-01

    Describes a series of experiments which illustrate the analytical capabilities of fluorescence, and outlines two straightforward analyses involving real analyses. These experiments are suitable for an undergraduate instrumental analysis course and require approximately six to seven hours of laboratory time. (MLH)

  3. Real-World Experiences

    Science.gov (United States)

    Borja, Rhea R.

    2006-01-01

    This article presents IISME, a U.S. program that can give educators a real-world experience and that can deepen their subject-matter knowledge. It also presents the experiences of some teachers who are into this program. IISME's summer-fellowship program started out with 40 teachers and 12 companies. The group's growth picked up in 2001, when it…

  4. Peak Experience Project

    Science.gov (United States)

    Scott, Daniel G.; Evans, Jessica

    2010-01-01

    This paper emerges from the continued analysis of data collected in a series of international studies concerning Childhood Peak Experiences (CPEs) based on developments in understanding peak experiences in Maslow's hierarchy of needs initiated by Dr Edward Hoffman. Bridging from the series of studies, Canadian researchers explore collected…

  5. The French experience

    CERN Document Server

    Bougard, Marie-Thérèse

    2003-01-01

    Developed for beginners, The French Experience 1 course book is designed to accompany the French Experience 1 CDs (9780563472582) but can also be used on its own to develop your reading and writing skills. You’ll gain valuable insights into French culture too.

  6. User Experience Dimensions

    DEFF Research Database (Denmark)

    Lykke, Marianne; Jantzen, Christian

    2016-01-01

    The present study develops a set of 10 dimensions based on a systematic understanding of the concept of experience as a holistic psychological. Seven of these are derived from a psychological conception of what experiencing and experiences are. Three supplementary dimensions spring from the obser...

  7. New neutrino experiments

    Indian Academy of Sciences (India)

    Maury Goodman

    2004-02-01

    Following incredible recent progress in understanding neutrino oscillations, many new ambitious experiments are being planned to study neutrino properties. The most important may be to find a non-zero value of $_{13}$. The most promising way to do this appears to be to measure $_{}→ _{}$ oscillations with an $E/L$ near $ m^{2}_{\\text{atmo}}$. Future neutrino experiments are great.

  8. Experiments with Succinct Solvers

    DEFF Research Database (Denmark)

    Buchholtz, Mikael; Nielson, Hanne Riis; Nielson, Flemming

    2002-01-01

    time of the solver and the aim of this note is to provide some insight into which formulations are better than others. The experiments addresses three general issues: (i) the order of the parameters of relations, (ii) the order of conjuncts in preconditions and (iii) the use of memoisation....... The experiments are performed for Control Flow Analyses for Discretionary Ambients....

  9. Experience as Excursion

    DEFF Research Database (Denmark)

    Svabo, Connie; Shanks, Michael

    2014-01-01

    qualities of experience are highlighted as part of a suggestion that design may indeed relate as much to metaphysics as to mechanics, materials science, and the psychology of the consumer and user. An Experience Design is sketched out as the choreography of temporary and shifting engagements across...

  10. Play as Experience

    Science.gov (United States)

    Henricks, Thomas S.

    2015-01-01

    The author investigates what he believes one of the more important aspects of play--the experience it generates in its participants. He considers the quality of this experience in relation to five ways of viewing play--as action, interaction, activity, disposition, and within a context. He treats broadly the different forms of affect, including…

  11. Realisation, experience, and purification

    DEFF Research Database (Denmark)

    Sobisch, Jan-Ulrich

    2013-01-01

    Often Buddhist mantra practises are portrayed as making and maintaining meditation experiences. Jigten Sumgön explains in his dGongs gcig (5.19) that such a 'making and maintaining' is only a mental fabrication and needs to be purified. Realisation does not arise from experience, but from...

  12. Experiments as politics

    NARCIS (Netherlands)

    Spears, R; Smith, HJ

    2001-01-01

    The purpose of this paper is to illustrate the political nature of laboratory experiments. Such experiments can be construed as paradigms of power, open to construction and debate, where different agents and interests are involved in a process of struggle over both (re)presentation and substance. Ex

  13. Franklin: User Experiences

    Energy Technology Data Exchange (ETDEWEB)

    National Energy Research Supercomputing Center; He, Yun (Helen); Kramer, William T.C.; Carter, Jonathan; Cardo, Nicholas

    2008-05-07

    The newest workhorse of the National Energy Research Scientific Computing Center is a Cray XT4 with 9,736 dual core nodes. This paper summarizes Franklin user experiences from friendly early user period to production period. Selected successful user stories along with top issues affecting user experiences are presented.

  14. On the Poggendorff Experiment

    Science.gov (United States)

    Coelho, Ricardo Lopes; Silva, P. A. S.; Borges, Paulo de Faria

    2015-01-01

    Poggendorff showed experimentally, in the middle of the 19th century, that the weight of an Atwood machine is reduced when it is brought to motion. His experiment has been revisited from time to time, making use of instrumentation that reflects the technological development of the moment. In this paper, the evolution of the experiment is briefly…

  15. Experiments as politics

    NARCIS (Netherlands)

    Spears, R; Smith, HJ

    2001-01-01

    The purpose of this paper is to illustrate the political nature of laboratory experiments. Such experiments can be construed as paradigms of power, open to construction and debate, where different agents and interests are involved in a process of struggle over both (re)presentation and substance. Ex

  16. Expectations in experiments

    NARCIS (Netherlands)

    Wagener, F.

    2013-01-01

    The rational expectations hypothesis is one of the cornerstones of current economic theorising. this review discusses a number of experiments that focus on expectation formation by human subjects and analyses the implications for the rational expectations hypothesis. The experiments show that most a

  17. ATLAS Experiment Brochure

    CERN Multimedia

    AUTHOR|(INSPIRE)INSPIRE-00085461

    2016-01-01

    ATLAS is one of the four major experiments at the Large Hadron Collider at CERN. It is a general-purpose particle physics experiment run by an international collaboration, and is designed to exploit the full discovery potential and the huge range of physics opportunities that the LHC provides.

  18. Neutrino oscillation experiments

    Energy Technology Data Exchange (ETDEWEB)

    Camilleri, L. [European Organization for Nuclear Research, Geneva (Switzerland)

    1996-11-01

    Neutrino oscillation experiments ({nu}{sub {mu}}{yields}{nu}{sub e} and {nu}{sub {mu}}{yields}{nu}{sub {tau}}) currently being performed at accelerators are reviewed. Future plans for short and long base-line experiments are summarized. (author) 10 figs., 2 tabs., 29 refs.

  19. Peak Experience Project

    Science.gov (United States)

    Scott, Daniel G.; Evans, Jessica

    2010-01-01

    This paper emerges from the continued analysis of data collected in a series of international studies concerning Childhood Peak Experiences (CPEs) based on developments in understanding peak experiences in Maslow's hierarchy of needs initiated by Dr Edward Hoffman. Bridging from the series of studies, Canadian researchers explore collected…

  20. Future Solar Neutrino Experiments

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Y. [Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Higashi-Mozumi, Kamioka-cho, Hida-city, 506-1205 (Japan)]. E-mail: suzuki@suketto.icrr.u-tokyo.ac.jp

    2005-06-15

    The purpose of the future solar neutrino experiments is briefly reviewed. The future experimental programs which aim to measure the low energy solar neutrinos are described. We do not cover all the projects. Experiments using noble gases are promising for the pp-neutrino measurements.

  1. Making the Experience City

    DEFF Research Database (Denmark)

    Jensen, Ole B.

    2009-01-01

    This paper describes the latest research into cultural planning and architectural branding in Denmark based on the ‘Experience City' research project located at Aalborg University. The paper explores the implication of the turn towards culture and experience in the contemporary Danish city. It thus...

  2. A Duplicate Construction Experiment.

    Science.gov (United States)

    Bridgeman, Brent

    This experiment was designed to assess the ability of item writers to construct truly parallel tests based on a "duplicate-construction experiment" in which Cronbach argues that if the universe description and sampling are ideally refined, the two independently constructed tests will be entirely equivalent, and that within the limits of item…

  3. Teaching Knowledge Engineering: Experiences

    DEFF Research Database (Denmark)

    Andersen, Tom; Hartvig, Susanne C

    1998-01-01

    Includes description of experiences gained by teaching KE in construction domains. It outlines good starting points and overall guidance to education in applied AI.......Includes description of experiences gained by teaching KE in construction domains. It outlines good starting points and overall guidance to education in applied AI....

  4. Space Experiment Module (SEM)

    Science.gov (United States)

    Brodell, Charles L.

    1999-01-01

    The Space Experiment Module (SEM) Program is an education initiative sponsored by the National Aeronautics and Space Administration (NASA) Shuttle Small Payloads Project. The program provides nationwide educational access to space for Kindergarten through University level students. The SEM program focuses on the science of zero-gravity and microgravity. Within the program, NASA provides small containers or "modules" for students to fly experiments on the Space Shuttle. The experiments are created, designed, built, and implemented by students with teacher and/or mentor guidance. Student experiment modules are flown in a "carrier" which resides in the cargo bay of the Space Shuttle. The carrier supplies power to, and the means to control and collect data from each experiment.

  5. Experience as Excursion

    DEFF Research Database (Denmark)

    Svabo, Connie; Shanks, Michael

    2014-01-01

    A central value of what may be termed Experience Design is its aspiration to shift focus from the logic of singular design fields to the interrelations and interactions that take place in situations where people are simultaneously engaged with multiple designs. Experience Design can allow...... researchers and practitioners to travel – making it possible to follow experiences as they are enacted across and between places, modes of transportation, mobile mediation and assemblages of things. Drawing on the nomadic metaphysics of philosopher Michel Serres, the journeying, shifting and propagating...... qualities of experience are highlighted as part of a suggestion that design may indeed relate as much to metaphysics as to mechanics, materials science, and the psychology of the consumer and user. An Experience Design is sketched out as the choreography of temporary and shifting engagements across...

  6. The Experience City

    DEFF Research Database (Denmark)

    Marling, Gitte; Jensen, Ole B.; Kiib, Hans

    2012-01-01

    This article take its point of departure in the pressure of the experience economy on European cities - a pressure which in recent years has found its expression in a number of comprehensive transformations of the physical and architectural environments, and new eventscapes related to fun...... and cultural experience are emerging. The physical, cultural and democratic consequences of this development are discussed in the article, as well as the problems and the new opportunities in the ‘Experience city’. It focuses on the design of the ‘Danish Experience City’ with a special emphasis on hybrid...... cultural projects and on performative urban spaces. ‘Hybrid cultural projects’ are characterised by a conscious fusion between urban transformation and new knowledge centres, cultural institutions and experience environments. ‘Performative urban spaces” are characterised by stages for performance...

  7. Experience Communication and Aesthetics

    DEFF Research Database (Denmark)

    Thorlacius, Lisbeth

    to user aspect (web 2.0), the personal engagement or the community spirit. This increasing demand of experiences reflects the postmodern cultural trends where rules for how to think and behave no longer exist. This results in individualism, where the identity of the human being has changed from something...... which was a given to something which each human being has to manage individually. As a consequence the human being experiences an increasing sense of insecurity and restless seeking after identity and recognition, which is reflected in an increasing demand of among other things self......In this article the term "experience communication" will be introduced and discussed. It will be illustrated how different concepts of aesthetical experiences are an integrated part of experience communication and how these concepts are produced within the industries of consumerism, branding...

  8. The Experience City

    DEFF Research Database (Denmark)

    Marling, Gitte; Jensen, Ole B.; Kiib, Hans

    2009-01-01

      The article take its point of departure in the pressure of the experience economy on European cities - a pressure which in recent years has found its expression in a number of comprehensive transformations of the physical and architectural environments, and new eventscapes related to fun...... and cultural experience are emerging. In the discussion of the transformation into the ‘experience economy' relevant to cities and urban areas we rarely find an analysis of the physical and spatial implications of this transformation. However, the physical, cultural and democratic consequences...... of this development are discussed in the paper, as well as the problems and the new opportunities with which the ‘Experience city' is faced. The article focus on the design of the Danish Experience City with special emphasis on hybrid cultural projects and on performative urban spaces. It present the first findings...

  9. Cryogenics for LHC experiments

    CERN Multimedia

    2001-01-01

    Cryogenic systems will be used by LHC experiments to maximize their performance. Institutes around the world are collaborating with CERN in the construction of these very low temperature systems. The cryogenic test facility in hall 180 for ATLAS magnets. High Energy Physics experiments have frequently adopted cryogenic versions of their apparatus to achieve optimal performance, and those for the LHC will be no exception. The two largest experiments for CERN's new flagship accelerator, ATLAS and CMS, will both use large superconducting magnets operated at 4.5 Kelvin - almost 270 degrees below the freezing point of water. ATLAS also includes calorimeters filled with liquid argon at 87 Kelvin. For the magnets, the choice of a cryogenic version was dictated by a combination economy and transparency to emerging particles. For the calorimeters, liquid argon was selected as the fluid best suited to the experiment's physics requirements. High Energy Physics experiments are the result of worldwide collaborations and...

  10. USML-1 Glovebox experiments

    Science.gov (United States)

    Naumann, Robert J.

    1995-01-01

    This report covers the development of and results from three experiments that were flown in the Materials Science Glovebox on USML-1: Marangoni convection in Closed Containers (MCCC), Double Float Zone (DFZ), and Fiber Pulling in Microgravity (FPM). The Glovebox provided a convenient, low cost method for doing simple 'try and see' experiments that could test new concepts or elucidate microgravity phenomena. Since the Glovebox provided essentially one (or possibly two levels of confinement, many of the stringent verification and test requirements on the experiment apparatus could be relaxed and a streamlined test and verification plan for flight qualification could be implemented. Furthermore, the experiments were contained in their own carrying cases whose external configurations could be identified early in the integration sequence for stowage considerations while delivery of the actual experiment apparatus could be postponed until only a few months before flight. This minimized the time fluids must be contained and reduced the possibility of corrosive reactions that could ruin the experiment. In many respects, this exercise was as much about developing a simpler, cheaper way of doing crew-assisted science as it was about the actual scientific accomplishments of the individual experiments. The Marangoni Convection in Closed Containers experiment was designed to study the effects of a void space in a simulated Bridgman crystal growth configuration and to determine if surface tension driven convective flows that may result from thermal gradients along any free surfaces could affect the solidification process. The Fiber Pulling in Microgravity experiment sought to separate the role of gravity drainage from capillarity effects in the break-up of slender cylindrical liquid columns. The Stability of a Double Float Zone experiment explored the feasibility of a quasi-containerless process in which a solidifying material is suspended by two liquid bridges of its own melt.

  11. Simulation - modeling - experiment; Simulation - modelisation - experience

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    After two workshops held in 2001 on the same topics, and in order to make a status of the advances in the domain of simulation and measurements, the main goals proposed for this workshop are: the presentation of the state-of-the-art of tools, methods and experiments in the domains of interest of the Gedepeon research group, the exchange of information about the possibilities of use of computer codes and facilities, about the understanding of physical and chemical phenomena, and about development and experiment needs. This document gathers 18 presentations (slides) among the 19 given at this workshop and dealing with: the deterministic and stochastic codes in reactor physics (Rimpault G.); MURE: an evolution code coupled with MCNP (Meplan O.); neutronic calculation of future reactors at EdF (Lecarpentier D.); advance status of the MCNP/TRIO-U neutronic/thermal-hydraulics coupling (Nuttin A.); the FLICA4/TRIPOLI4 thermal-hydraulics/neutronics coupling (Aniel S.); methods of disturbances and sensitivity analysis of nuclear data in reactor physics, application to VENUS-2 experimental reactor (Bidaud A.); modeling for the reliability improvement of an ADS accelerator (Biarotte J.L.); residual gas compensation of the space charge of intense beams (Ben Ismail A.); experimental determination and numerical modeling of phase equilibrium diagrams of interest in nuclear applications (Gachon J.C.); modeling of irradiation effects (Barbu A.); elastic limit and irradiation damage in Fe-Cr alloys: simulation and experiment (Pontikis V.); experimental measurements of spallation residues, comparison with Monte-Carlo simulation codes (Fallot M.); the spallation target-reactor coupling (Rimpault G.); tools and data (Grouiller J.P.); models in high energy transport codes: status and perspective (Leray S.); other ways of investigation for spallation (Audoin L.); neutrons and light particles production at intermediate energies (20-200 MeV) with iron, lead and uranium targets (Le Colley F

  12. Understanding customer experience.

    Science.gov (United States)

    Meyer, Christopher; Schwager, Andre

    2007-02-01

    Anyone who has signed up for cell phone service, attempted to claim a rebate, or navigated a call center has probably suffered from a company's apparent indifference to what should be its first concern: the customer experiences that culminate in either satisfaction or disappointment and defection. Customer experience is the subjective response customers have to direct or indirect contact with a company. It encompasses every aspect of an offering: customer care, advertising, packaging, features, ease of use, reliability. Customer experience is shaped by customers' expectations, which largely reflect previous experiences. Few CEOs would argue against the significance of customer experience or against measuring and analyzing it. But many don't appreciate how those activities differ from CRM or just how illuminating the data can be. For instance, the majority of the companies in a recent survey believed they have been providing "superior" experiences to customers, but most customers disagreed. The authors describe a customer experience management (CEM) process that involves three kinds of monitoring: past patterns (evaluating completed transactions), present patterns (tracking current relationships), and potential patterns (conducting inquiries in the hope of unveiling future opportunities). Data are collected at or about touch points through such methods as surveys, interviews, focus groups, and online forums. Companies need to involve every function in the effort, not just a single customer-facing group. The authors go on to illustrate how a cross-functional CEM system is created. With such a system, companies can discover which customers are prospects for growth and which require immediate intervention.

  13. The three eggs experiment

    Science.gov (United States)

    Şahin Bülbül, Mustafa

    2016-01-01

    The three eggs experiment concerns 37 pre-service science teachers’ predictions about the impact shapes of three uncooked eggs dropped from different heights. This experiment looks at energy transformation from potential to kinetic energy, where the smaller parts of the egg shell spread far from the center of the impact. This experience encouraged the pre-service science teachers to use their familiar models, such as a fried egg, omelet, puddle, dropping or explosions, to explain their predictions. These models from everyday life presented can be used as a tool to explain unfamiliar phenomena.

  14. Nightshade Prototype Experiments (Silverleaf)

    Energy Technology Data Exchange (ETDEWEB)

    Danielson, Jeremy [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Bauer, Amy L. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-12-23

    The Red Sage campaign is a series of subcritical dynamic plutonium experiments designed to measure ejecta. Nightshade, the first experiments in Red Sage scheduled for fiscal year 2019, will measure the amount of ejecta emission into vacuum from a double-­shocked plutonium surface. To address the major technical risks in Nightshade, a Level 2 milestone was developed for fiscal year 2016. Silverleaf, a series of four experiments, was executed at the Los Alamos National Laboratory in July and August 2016 to demonstrate a prototype of the Nightshade package and to satisfy this Level 2 milestone. This report is documentation that Red Sage Level 2 milestone requirements were successfully met.

  15. Game user experience evaluation

    CERN Document Server

    Bernhaupt, Regina

    2015-01-01

    Evaluating interactive systems for their user experience (UX) is a standard approach in industry and research today. This book explores the areas of game design and development and Human Computer Interaction (HCI) as ways to understand the various contributing aspects of the overall gaming experience. Fully updated, extended and revised this book is based upon the original publication Evaluating User Experience in Games, and provides updated methods and approaches ranging from user- orientated methods to game specific approaches. New and emerging methods and areas explored include physiologi

  16. Making the Experience City

    DEFF Research Database (Denmark)

    Jensen, Ole B.

    2009-01-01

    makes an investigation into the complex relationship between the words and policies of the ‘Experience Economy' and the actual urban transformations made in cities with reference to these changes. The paper discusses the cases researched in relation to the state, market, civil society framework as well......This paper describes the latest research into cultural planning and architectural branding in Denmark based on the ‘Experience City' research project located at Aalborg University. The paper explores the implication of the turn towards culture and experience in the contemporary Danish city. It thus...

  17. Hydrothermal organic synthesis experiments

    Science.gov (United States)

    Shock, Everett L.

    1992-01-01

    Ways in which heat is useful in organic synthesis experiments are described, and experiments on the hydrothermal destruction and synthesis of organic compounds are discussed. It is pointed out that, if heat can overcome kinetic barriers to the formation of metastable states from reduced or oxidized starting materials, abiotic synthesis under hydrothermal conditions is a distinct possibility. However, carefully controlled experiments which replicate the descriptive variables of natural hydrothermal systems have not yet been conducted with the aim of testing the hypothesis of hydrothermal organic systems.

  18. Experimenting for resilience

    DEFF Research Database (Denmark)

    Hagedorn-Rasmussen, Peter; Dupret, Katia

    Focusing on how an experimental approach to organizing may pave the way for organizational resilience, we explore opportunities and barriers of experimental organizing by following a concrete social experiment in civil society and discuss its adaptability in traditional organizations. The social...... experiment is called Civic Desire. The founders explicitly call for new ways of organizing that can develop social sustainability. We discuss how these experiments may create platforms of new unforeseen goals that organizations may choose to follow. In conclusion we argue for organizational resilience...

  19. Network simulation experiments manual

    CERN Document Server

    Aboelela, Emad

    2011-01-01

    Network Simulation Experiments Manual, Third Edition, contains simulation-based experiments to help students and professionals learn about key concepts in computer networking. The simulation approach provides a virtual environment for a wide range of desirable features, such as modeling a network based on specified criteria and analyzing its performance under different scenarios. The experiments include the basics of using OPNET IT Guru Academic Edition; operation of the Ethernet network; partitioning of a physical network into separate logical networks using virtual local area networks (V

  20. THERMAL DISTRIBUTION SYSTEM EXPERIMENT

    Energy Technology Data Exchange (ETDEWEB)

    KRAJEWSKI,R.F.; ANDREWS,J.W.; WEI,G.

    1999-09-01

    A laboratory experiment has been conducted which tests for the effects of distribution system purging on system Delivery Effectiveness (DE) as defined in ASHRAE 152P. The experiment is described in its configuration, instrumentation, and data acquisition system. Data gathered in the experiment is given and discussed. The results show that purging of the distribution system alone does not offer any improvement of the system DE. Additional supporting tests were conducted regarding experimental simulations of buffer zones and bare pipe and are also discussed.

  1. Phenomenological Account of Religious Experience

    Directory of Open Access Journals (Sweden)

    Donny Gahral Adian

    2011-08-01

    Full Text Available History of philosophy is built upon rigid discrimination between various human experiences. Human experiences are divided mainly into two major experiences: Perceptual and intelectual. Perceptual experience is deined by empiricism as an aposteriori experience of empirical sensations. Meanwhile, rationalism claims that the only acceptable experience is apriori experience of intelectual object (natural laws, mathematical equations and logical operations. There is no other experience outside those two philosophical account of experiences. All other experiences must be subsumed either within perceptual or intelectual experience.

  2. The Experience City

    DEFF Research Database (Denmark)

    Marling, Gitte; Jensen, Ole B.; Kiib, Hans

    2009-01-01

    of a research project  mapping the different approaches to urban transformation and experience design, to the level of strategic thinking and planning, and to the content of the programs implemented. Special emphasis is put on on projects combining experience, leisure and learning, and on projects which have...... concepts and framings that will guide the understanding and the analysis of the experience city. In section three we focus on the design of the Danish experience city and present the first findings of the research project The projects are categorised according to their content, structure and urban...... localisation. In particular the cases are represented in relation to their strategic and urban planning importance, their social and cultural content and their architectural representation and the programmes they contain. The article ends with a short discussion of some  of these preliminary findings as well...

  3. Conceptualising the audiobook experience

    Directory of Open Access Journals (Sweden)

    Iben Have

    2012-12-01

    Full Text Available In this article we wish to introduce and discuss a theoretical framework for a possible conceptualisation of the differences between reading a printed book and listening to an audiobook. We tend to introduce similarities and differences between reading with the eyes and reading with the ears, implying that we should not discuss the audiobook experience as a remediation of the printed book experience only, but as an entirely different experience that could be conceptualised in continuation of mobile listening practises. As a methodological strategy we will emphasise the differences between the literary practices, reading with the eyes and reading with the ears. These different perspectives on reading are used to accentuate the distinct experiences, and future thorough analyses in continuation of this framework would appear much more complex and connected than in the present article.

  4. Cooperative Prototyping Experiments

    DEFF Research Database (Denmark)

    Bødker, Susanne; Grønbæk, Kaj

    1989-01-01

    This paper describes experiments with a design technique that we denote cooperative prototyping. The experiments consider design of a patient case record system for municipal dental clinics in which we used HyperCard, an off the shelf programming environment for the Macintosh. In the ecperiments we...... tried to achieve a fluent work-like evaluation of prototypes where users envisioned future work with a computer tool, at the same time as we made on-line modifications of prototypes in cooperation with the users when breakdown occur in their work-like evaluation. The experiments showed...... these experiences we discuss problems in the process, requirements for design tools, and issues involved in getting going with cooperative prototyping with active user involvement....

  5. The world's biggest experiment

    CERN Document Server

    Gregson, Liz

    2008-01-01

    According to CERN, our understanding of the Universe is about the change. Meet the Imperial alumni and staff who are involved in CERN's Large Hadron Collider, the world's biggest experiment. (3 pages)

  6. Lidar calibration experiments

    DEFF Research Database (Denmark)

    Ejsing Jørgensen, Hans; Mikkelsen, T.; Streicher, J.

    1997-01-01

    A series of atmospheric aerosol diffusion experiments combined with lidar detection was conducted to evaluate and calibrate an existing retrieval algorithm for aerosol backscatter lidar systems. The calibration experiments made use of two (almost) identical mini-lidar systems for aerosol cloud...... detection to test the reproducibility and uncertainty of lidars. Lidar data were obtained from both single-ended and double-ended Lidar configurations. A backstop was introduced in one of the experiments and a new method was developed where information obtained from the backstop can be used in the inversion...... algorithm. Independent in-situ aerosol plume concentrations were obtained from a simultaneous tracer gas experiment with SF6, and comparisons with the two lidars were made. The study shows that the reproducibility of the lidars is within 15%, including measurements from both sides of a plume...

  7. User Experience Dimensions

    DEFF Research Database (Denmark)

    Lykke, Marianne; Jantzen, Christian

    2016-01-01

    The present study develops a set of 10 dimensions based on a systematic understanding of the concept of experience as a holistic psychological. Seven of these are derived from a psychological conception of what experiencing and experiences are. Three supplementary dimensions spring from...... the observation that experiences apparently have become especially valuable phenomena in Western societies. The 10 dimensions are tried out in a field study at the Center for Art and Media (ZKM) in Germany with the purpose to study their applicability in the evaluation of interactive sound archives. 29 walk......-alongs were carried out with 58 museums visitors. Our analysis showed that it was possible to identify the 10 experience dimensions in the study material. Some dimensions were expressed more frequently than others. The distribution of expressed dimensions and the content of the user comments provided a clear...

  8. Accessibility and sensory experiences

    DEFF Research Database (Denmark)

    Ryhl, Camilla

    2010-01-01

    This article introduces a new design concept; sensory accessibility. While acknowledging the importance of sensory experiences in architectural quality, as well as the importance of accommodating user needs the concept combines three equally important factors; architecture, the senses and accessi......This article introduces a new design concept; sensory accessibility. While acknowledging the importance of sensory experiences in architectural quality, as well as the importance of accommodating user needs the concept combines three equally important factors; architecture, the senses...... and accessibility. Sensory accessibility accommodates aspects of a sensory disability and describes architectural design requirements needed to ensure access to architectural experiences. In the context of architecture accessibility has become a design concept of its own. It is generally described as ensuring...... physical access to the built environment by accommodating physical disabilities. While the existing concept of accessibility ensures the physical access of everyone to a given space, sensory accessibility ensures the choice of everyone to stay and be able to participate and experience....

  9. Foraging Experiences with Children

    Science.gov (United States)

    Russell, Helen Ross

    1976-01-01

    Provided are foraging experiences and wild foods information for utilization in the urban school curriculum. Food uses are detailed for roses, dandelions, wild onions, acorns, cattails, violets and mints. (BT)

  10. [Mechanical staplers. Personal experience].

    Science.gov (United States)

    Carzaniga, P L; Gatti, A; Russo, F; Sforza, M; Vertemati, G

    1992-12-01

    The Authors briefly summarise their experience of using various types of mechanical staplers in abdominal and thoracic surgery with excellent results both in general and in terms of reducing operating times.

  11. Experience and Its Generation

    Institute of Scientific and Technical Information of China (English)

    Chen Youqing

    2006-01-01

    Experience iS an activity that arouses emotions and generates meanings based on vivid sensation and profound compreh ension.It iS emotional,meaningful,and personal,playing a key role in the course of forming and developing one'S qualities.The psychological process of experience generation consists of such links as sensing things,arousing emotions,promoting comprehension and association,generating insights and meanings,and deepening emotional responses.Undergoing things personally by means of direct sensation,taking part in activities,and living life are the most important preconditions of experience generation.Emotional influence,situational edification,and arts edification ale extemal factors that induce experience generation.

  12. Experiments with Helmholtz Resonators.

    Science.gov (United States)

    Greenslade, Thomas B., Jr.

    1996-01-01

    Presents experiments that use Helmholtz resonators and have been designed for a sophomore-level course in oscillations and waves. Discusses the theory of the Helmholtz resonator and resonance curves. (JRH)

  13. Experiments in Animal Behavior

    Science.gov (United States)

    Polt, James M.

    1971-01-01

    Describes experiments in conditioning, sensory processes, social behavior, imprinting, innate preferences for color and form, and discrimination learning suitable for secondary school students. Mealworms, crickets, and chicks are used as subjects. (AL)

  14. Experiment-o-mania

    Science.gov (United States)

    Drndarski, Marina

    2015-04-01

    Every 21st century student is expected to develop science literacy skills. As this is not part of Serbian national curriculum yet, we decided to introduce it with this project. Experiment-o-mania provides students to experience science in different and exciting way. It makes opportunity for personalized learning offering space and time to ask (why, where, how, what if) and to try. Therefore, we empower young people with skills of experimenting, and they love science back. They ask questions, make hypothesis, make problems and solve them, make mistakes, discuss about the results. Subsequently this raises the students' interest for school curriculum. This vision of science teaching is associated with inquiry-based learning. Experiment-o-mania is the unique and recognizable teaching methodology for the elementary school Drinka Pavlović, Belgrade, Serbia. Experiment-o-mania implies activities throughout the school year. They are held on extra class sessions, through science experiments, science projects or preparations for School's Days of science. Students learn to ask questions, make observations, classify data, communicate ideas, conduct experiments, analyse results and make conclusions. All science teachers participate in designing activities and experiments for students in Experiment-o-mania teaching method. But they are not alone. Teacher of fine arts, English teachers and others also take part. Students have their representatives in this team, too. This is a good way to blend knowledge among different school subject and popularize science in general. All the experiments are age appropriate and related to real life situations, local community, society and the world. We explore Fibonacci's arrays, saving energy, solar power, climate change, environmental problems, pollution, daily life situations in the country or worldwide. We introduce great scientists as Nikola Tesla, Milutin Milanković and sir Isaac Newton. We celebrate all relevant international days, weeks

  15. Illegal Entrepreneurship Experience

    OpenAIRE

    2004-01-01

    Existing studies show a positive relationship between entrepreneurs' business performance and their conventional human capital as measured by previous business experience and formal education. In this paper, we explore whether illegal entrepreneurship experience (IEE), an unconventional form of human capital, is related to the performance and motivation of entrepreneurs operating legal businesses in a transition context. Using regression techniques on a sample of 399 private business owners i...

  16. Sculpting the Illness Experience

    Directory of Open Access Journals (Sweden)

    Molly Bathje MS, OTR/L

    2014-10-01

    Full Text Available Otto Kamensek provided the cover art for the Fall 2014 issue of the Open Journal of Occupational Therapy. “Glimmer of Hope” is part of Otto’s collection “Shard’s, Bone Deep,” which includes hand-built ceramic sculptures that portray his experiences with a lifelong chronic illness. Engaging in ceramic sculpture helps him process the experiences associated with Juvenile Rheumatoid Arthritis and provides a means to support others experiencing chronic illness.

  17. The CLOUD experiment

    CERN Multimedia

    Maximilien Brice

    2006-01-01

    The Cosmics Leaving Outdoor Droplets (CLOUD) experiment as shown by Jasper Kirkby (spokesperson). Kirkby shows a sketch to illustrate the possible link between galactic cosmic rays and cloud formations. The CLOUD experiment uses beams from the PS accelerator at CERN to simulate the effect of cosmic rays on cloud formations in the Earth's atmosphere. It is thought that cosmic ray intensity is linked to the amount of low cloud cover due to the formation of aerosols, which induce condensation.

  18. Digital Heritage Experiences

    DEFF Research Database (Denmark)

    Munar, Ana Maria; Ooi, Can-Seng

    The evolution of the Web and the expansion of social media are transforming our heritage experiences. Social media offer an innovative element to personal travel reflections by providing digital global platforms on which tourists can create and publish their travel stories. Social media transform...... the traditional creative processes, distribution mechanisms and consumption patterns of these experiences. This study provides insight on how personal heritage moments are constructed, digitalized and shared. The methodological perspective adopted draws on a constructivist epistemology (Markham 2004...

  19. Future Reactor Experiments

    OpenAIRE

    He, Miao

    2013-01-01

    The measurement of the neutrino mixing angle $\\theta_{13}$ opens a gateway for the next generation experiments to measure the neutrino mass hierarchy and the leptonic CP-violating phase. Future reactor experiments will focus on mass hierarchy determination and the precision measurement of mixing parameters. Mass hierarchy can be determined from the disappearance of reactor electron antineutrinos based on the interference effect of two separated oscillation modes. Relative and absolute measure...

  20. Reactor antineutrino experiments

    OpenAIRE

    Lu, Haoqi

    2014-01-01

    Neutrinos are elementary particles in the standard model of particle physics. There are 3 flavors of neutrinos that oscillate among themselves. Their oscillation can be described by a 3$\\times$3 unitary matrix, containing three mixing angles $\\theta_{12}$, $\\theta_{23}$, $\\theta_{13}$, and one CP phase. Both $\\theta_{12}$ and $\\theta_{23}$ are known from previous experiments. $\\theta_{13}$ was unknown just two years ago. The Daya Bay experiment gave the first definitive non-zero value in 2012...

  1. Surface electrical properties experiment

    Science.gov (United States)

    Simmons, Gene; Strangway, David; Annan, Peter; Baker, Richard G.; Bannister, Lawrence; Brown, Raymon; Cooper, William; Cubley, Dean; deBettencourt, Joseph; England, Anthony W.; Groener, John; Kong, Jin-Au; LaTorraca, Gerald; Meyer, James; Nanda, Ved; Redman, David; Rossiter, James; Tsang, Leung; Urner, Joseph; Watts, Raymond

    1973-01-01

    The surface electrical properties (SEP) experiment was used to explore the subsurface material of the Apollo 17 landing site by means of electromagnetic radiation. The experiment was designed to detect electrical layering, discrete scattering bodies, and the possible presence of water. From the analysis of the data, it was expected that values of the electrical properties (dielectric constant and loss tangent) of lunar material in situ would be obtained.

  2. Mechatronics with experiments

    CERN Document Server

    Cetinkunt, Sabri

    2014-01-01

    Mechatronics with Experiments, Second Edition comprehensively covers the fundamental scientific principles and technologies that are used in the design of modern computer-controlled machines and processes. It provides all of the technical background (covering mechanical, aerospace, chemical, electrical, and computer engineering) needed for designing an automated machine or process. The new edition of this textbook has been updated to include a number of experiments involving electronic circuit design and microcontroller programming and includes real time software development using MATLAB® and

  3. The OPERA Experiment

    CERN Document Server

    Iovane, G

    1998-01-01

    OPERA(Oscillation Project with Emulsion-tRacking Apparatus) is a new detector concept, iron(lead)-emulsion for a long-baseline neutrino oscillation experiment. This experiment would perform an appearance search for nu_mu-nu_tau oscillation in the parameter region indicated by the atmospheric neutrino anomaly. OPERA can run at the Gran Sasso Laboratory in the proposed NGS (Neutrino to Gran Sasso) Beam from CERN.

  4. Hamlet and psychoanalytic experience.

    Science.gov (United States)

    Schwaber, Paul

    2007-01-01

    Hamlet draws us into its rendered world, enabling us to experience it with depth, awareness, and resonance, in a mode we recognize as aesthetic. By way of Shakespeare's play--primarily the first act--and a detailed case study, aesthetic and psychoanalytic experience are compared, to suggest that, for our own analytic discourse, we revalue Freud's unease that his case studies read like short stories.

  5. The LHCb experiment

    CERN Document Server

    Nakada, Tatsuya

    2000-01-01

    The LHCb experiment is designed to fully exploit the large number of b hadrons expected at the LHC energy and luminosity. The experiment is equipped with particle identification devices and can efficiently trigger events with different B-meson final states, allowing systematic studies of CP violation and other rare phenomena in the b hadron system with a high precision which could reveal physics beyond the Standard Model.

  6. The MAJORANA Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Aguayo Navarrete, Estanislao; Avignone, F. T.; Back, Henning O.; Barabash, Alexander S.; Bergevin, M.; Bertrand, F.; Boswell, M.; Brudanin, V.; Busch, Matthew; Chan, Yuen-Dat; Christofferson, Cabot-Ann; Collar, J. I.; Combs, Dustin C.; Cooper, R. J.; Detwiler, Jason A.; Doe, Peter J.; Efremenko, Yuri; Egorov, Viatcheslav; Ejiri, H.; Elliott, Steven R.; Esterline, James H.; Fast, James E.; Fields, N.; Finnerty, P.; Fraenkle, Florian; Gehman, Victor M.; Giovanetti, G. K.; Green, Matthew P.; Guiseppe, Vincente; Gusey, K.; Hallin, A. L.; Hazama, R.; Henning, R.; Hime, Andrew; Hoppe, Eric W.; Horton, Mark; Howard, Stanley; Howe, M. A.; Johnson, R. A.; Keeter, K.; Keillor, Martin E.; Keller, C.; Kephart, Jeremy D.; Kidd, Mary; Knecht, A.; Kochetov, Oleg; Konovalov, S.; Kouzes, Richard T.; LaFerriere, Brian D.; LaRoque, B. H.; Leon, Jonathan D.; Leviner, L.; Loach, J. C.; MacMullin, S.; Marino, Michael G.; Martin, R. D.; Mei, Dong-Ming; Merriman, Jason H.; Miller, M. L.; Mizouni, Leila; Nomachi, Masaharu; Orrell, John L.; Overman, Nicole R.; Phillips, D.; Poon, Alan; Perumpilly, Gopakumar; Prior, Gersende; Radford, D. C.; Rielage, Keith; Robertson, R. G. H.; Ronquest, M. C.; Schubert, Alexis G.; Shima, T.; Shirchenko, M.; Snavely, Kyle J.; Sobolev, V.; Steele, David; Strain, J.; Thomas, K.; Timkin, V.; Tornow, W.; Vanyushin, I.; Varner, R. L.; Vetter, Kai; Vorren, Kris R.; Wilkerson, John; Wolfe, B. A.; Yakushev, E.; Young, A.; Yu, Chang-Hong; Yumatov, Vladimir; Zhang, C.

    2011-10-01

    The Majorana collaboration is actively pursuing research and development aimed at a tonne-scale {sup 76}Ge neutrinoless double-beta decay ({beta}{beta}(0{nu})-decay) experiment. The current, primary focus is the construction of the Majorana Demonstrator experiment, an R and D effort that will field approximately 40 kg of germanium detectors with mixed enrichment levels. This article provides a status update on the construction of the Demonstrator.

  7. Prolonged labour : women's experiences

    OpenAIRE

    Nystedt, Astrid

    2005-01-01

    Aim: The overall aim of this thesis was to illuminate, describe, and promote understanding of women’s experiences of prolonged labour. The thesis compromises four studies. Methods: Paper I describes a case-referent study that recruited women (n = 255) giving singleton live birth to their first child by spontaneous labour after more than 37 completed weeks’ pregnancy. Participants completed a questionnaire that investigated childbirth experiences, previous family relationships, and childhood e...

  8. Radiochemical solar neutrino experiments

    CERN Document Server

    Gavrin, V N

    2011-01-01

    Radiochemical experiments have been crucial to solar neutrino research. Even today, they provide the only direct measurement of the rate of the proton-proton fusion reaction, p + p --> d + e^+ + nu_e, which generates most of the Sun's energy. We first give a little history of radiochemical solar neutrino experiments with emphasis on the gallium experiment SAGE -- the only currently operating detector of this type. The combined result of all data from the Ga experiments is a capture rate of 67.6 +/- 3.7 SNU. For comparison to theory, we use the calculated flux at the Sun from a standard solar model, take into account neutrino propagation from the Sun to the Earth and the results of neutrino source experiments with Ga, and obtain 67.3 ^{+3.9}_{-3.5} SNU. Using the data from all solar neutrino experiments we calculate an electron neutrino pp flux at the earth of (3.41 ^{+0.76}_{-0.77}) x 10^{10}/(cm^2-s), which agrees well with the prediction from a detailed solar model of (3.30 ^{+0.13} _{-0.14}) x 10^{10}/(cm^...

  9. Reconstructing Experiences through Sketching

    CERN Document Server

    Karapanos, Evangelos; Hassenzahl, Marc

    2009-01-01

    This paper presents iScale, a survey tool that aims at eliciting users' experiences with a product from memory. iScale employs sketching in imposing a process in the reconstruction of one's experiences. Two versions of iScale, the Constructive and the Value-Account iScale, were motivated by two distinct theories on how people reconstruct emotional experiences from memory. These two versions were tested in two separate studies. Study 1 aimed at providing qualitative insight into the use of iScale and compared its performance to that of free-hand sketching. Study 2 compared the two iScale versions to a control condition: that of reporting one's experiences without employing any form of sketching. Significant differences between iScale and the "no-sketching" tool were found. Overall, iScale resulted in a) an increase in the number of experience reports that subjects provided, b) an increase in the amount of contextual information for the reported experiences, and c) an increase in subjects' accuracy in recalling...

  10. Experiments in computing: a survey.

    Science.gov (United States)

    Tedre, Matti; Moisseinen, Nella

    2014-01-01

    Experiments play a central role in science. The role of experiments in computing is, however, unclear. Questions about the relevance of experiments in computing attracted little attention until the 1980s. As the discipline then saw a push towards experimental computer science, a variety of technically, theoretically, and empirically oriented views on experiments emerged. As a consequence of those debates, today's computing fields use experiments and experiment terminology in a variety of ways. This paper analyzes experimentation debates in computing. It presents five ways in which debaters have conceptualized experiments in computing: feasibility experiment, trial experiment, field experiment, comparison experiment, and controlled experiment. This paper has three aims: to clarify experiment terminology in computing; to contribute to disciplinary self-understanding of computing; and, due to computing's centrality in other fields, to promote understanding of experiments in modern science in general.

  11. The POLARBEAR Experiment

    CERN Document Server

    Kermish, Z; Anthony, A; Arnold, K; Arnold, K; Barron, D; Boettger, D; Borrill, J; Chapman, S; Chinone, Y; Dobbs, M A; Errard, J; Fabbian, G; Flanigan, D; Fuller, G; Ghribi, A; Grainger, W; Halverson, N; Hasegawa, M; Hattori, K; Hazumi, M; Holzapfel, W L; Howard, J; Hyland, P; Jaffe, A; Keating, B; Kisner, T; Lee, A T; Jeune, M Le; Linder, E; Lungu, M; Matsuda, F; Matsumura, T; Meng, X; Miller, N J; Morii, H; Moyerman, S; Myers, M J; Nishino, H; Paar, H; Quealy, E; Reichardt, C L; Richards, P L; Ross, C; Shimizu, A; Shimon, M; Shimmin, C; Sholl, M; Siritanasak, P; Spieler, H; Stebor, N; Steinbach, B; Stompor, R; Suzuki, A; Tomaru, T; Tucker, C; Zahn, O

    2012-01-01

    We present the design and characterization of the POLARBEAR experiment. POLARBEAR will measure the polarization of the cosmic microwave background (CMB) on angular scales ranging from the experiment's 3.5 arcminute beam size to several degrees. The experiment utilizes a unique focal plane of 1,274 antenna-coupled, polarization sensitive TES bolometers cooled to 250 milliKelvin. Employing this focal plane along with stringent control over systematic errors, POLARBEAR has the sensitivity to detect the expected small scale B-mode signal due to gravitational lensing and search for the large scale B-mode signal from inflationary gravitational waves. POLARBEAR was assembled for an engineering run in the Inyo Mountains of California in 2010 and was deployed in late 2011 to the Atacama Desert in Chile. An overview of the instrument is presented along with characterization results from observations in Chile.

  12. Qualitative experiments in psychology

    DEFF Research Database (Denmark)

    Wagoner, Brady

    2015-01-01

    In this article, I explore the meaning of experiments in early twentieth century psychology, focusing on the qualitative experimental methodology of psychologist Frederic BARTLETT. I begin by contextualizing BARTLETT's experiments within the continental research tradition of his time, which...... was in a state of transition from a focus on elements (the concern of psychophysics) to a focus on wholes (the concern of Gestalt psychology). The defining feature of BARTLETT's early experiments is his holistic treatment of human responses, in which the basic unit of analysis is the active person relating...... to some material within the constraints of a social and material context. This manifests itself in a number of methodological principles that contrast with contemporary understandings of experimentation in psychology. The contrast is further explored by reviewing the history of "replications...

  13. Learning From Experience

    DEFF Research Database (Denmark)

    Visholm, Steen; Beck, Ulla Charlotte

    2014-01-01

    University and NAPSO2). Seen from the horizon of their experience some of the basic concepts in the theories about GRC need clarifying, revision, and development. The GRC is a part of the learning from experience movement and as a consequence it stresses the underlying basis: learning is personal so everyone......In this paper the learning concept of group relation's conferences are discussed. The authors have worked with group relations conferences (GRC) in different contexts for many years-mainly as a part of educational programmes for managers and consultants (OPU at IGA Copenhagen, MPO at Roskilde...... decides for themselves what makes sense and what does not. This principle sometimes works as a defence against a closer examination of the two questions: do GRCs provide relevant experiences to learn from, and what is it you learn or can expect to learn at a GRC. Here the learning concept of the GRCs...

  14. The interprofessional learning experience

    DEFF Research Database (Denmark)

    Jakobsen, Flemming; Mørcke, Anne Mette; Hansen, Torben Bæk

    2017-01-01

    we ensure that this shift maximises learning. The purpose of this article is to understand the authentic learning experience in an interprofessional outpatient clinic setting. We performed an exploratory case study with interviews of four nursing students, 13 medical students, and six staff members...... who worked in an interprofessional outpatient orthopaedic clinic from March 2015 to January 2016. The interviews were transcribed and analysed using systematic text condensation. The students' self-reported learning experience in this outpatient clinic was characterised by direct patient contact...... and by authentic, interprofessional, task-based learning, and a preference for indirect supervision when conducting uncomplicated patient consultations. The supervisors intended to create this interprofessional outpatient clinic experience by having a clear teaching approach based on adult learning principles...

  15. Experience and Sustainable Consumption

    DEFF Research Database (Denmark)

    Rasmussen, Tove Arendt

    consumption may re-enchant ordinary consumption and thereby even become a part of marketing and the experience economy. New layers of meaning are at stake and altruistic motives come into play; doing something good for someone or something, aside from oneself, is a very strong trigger of positive emotions......Experience understood as experience-based consumption is by now fairly absent from the research agenda of the different theories on sustainable consumption. On the basis of Colin Campbell’s notion of romantic ethics and emotional sentimentality in modern hedonism, I claim that sustainable....... Very often, however, the actual purchase does not live up to the demands of doing good in the sustainable consumption chain, and the individual might end up with a guilty conscience, which again is a possible trigger for lingering in a sentimental mode of guilt. Emotions of sentimentality may actually...

  16. Experience and Sustainable Consumption

    DEFF Research Database (Denmark)

    Rasmussen, Tove Arendt

    2014-01-01

    consumption may re-enchant ordinary consumption and thereby even become a part of marketing and the experience economy. New layers of meaning are at stake and altruistic motives come into play; doing something good for someone or something, aside from oneself, is a very strong trigger of positive emotions......Experience understood as experience-based consumption is by now fairly absent from the research agenda of the different theories on sustainable consumption. On the basis of Colin Campbell’s notion of romantic ethics and emotional sentimentality in modern hedonism, I claim that sustainable....... Very often, however, the actual purchase does not live up to the demands of doing good in the sustainable consumption chain, and the individual might end up with a guilty conscience, which again is a possible trigger for lingering in a sentimental mode of guilt. Emotions of sentimentality may actually...

  17. ATLAS IBL operational experience

    CERN Document Server

    Takubo, Yosuke; The ATLAS collaboration

    2016-01-01

    The Insertable B-Layer (IBL) is the inner most pixel layer in the ATLAS experiment, which was installed at 3.3 cm radius from the beam axis in 2014 to improve the tracking performance. To cope with the high radiation and hit occupancy due to proximity to the interaction point, a new read-out chip and two different silicon sensor technologies (planar and 3D) have been developed for the IBL. After the long shut-down period over 2013 and 2014, the ATLAS experiment started data-taking in May 2015 for Run-2 of the Large Hadron Collider (LHC). The IBL has been operated successfully since the beginning of Run-2 and shows excellent performance with the low dead module fraction, high data-taking efficiency and improved tracking capability. The experience and challenges in the operation of the IBL is described as well as its performance.

  18. Experimenting with practice

    DEFF Research Database (Denmark)

    Knudsen, Hanne; Adriansen, Hanne Kirstine

    2016-01-01

    these experiments the learning material and stepping stone for formulating problems in new ways. We argue that it is fruitful to make a distinction between practical problems and knowledge problems, and that playful shifts back and forth between the two forms of problems can provide learning. We also argue...... that it is important to observe the distinction between the role of the manager and the role of the student in order to meet ethical challenges, inevitably raised by experimenting with practice. Finally we argue that the experimental teaching practice can be conceptualised as a monstrous pedagogy, as the pedagogy...... creates a liminal zone with hybrid characteristics. Research limitations/implications The chapter provides new conceptualizations of the tensions between theory and practice based on our experiences from one degree programme. It would have been interesting to study other executive programmes and which...

  19. An Organoleptic Laboratory Experiment

    Science.gov (United States)

    Risley, John M.

    1996-12-01

    Flavorings in foods and fragrances in personal care products is a topic often discussed in chemistry classes designed for the general education of non-science majors. A laboratory experiment has been designed to accompany the lecture topic. Compounds in ten different classes of organic molecules that are used in the fragrance and food industry are provided to students. Students whiff the vapors of each compound and describe the organoleptic properties using a set of terms utilized in the fragrance and food industry. A set of questions guides students to an understanding of the relationship between structure of molecules and smell. Students are permitted to create their own fragrance based on the results of the experiment. Student response has been favorable. The experiment rectifies misconceptions students have about structure and odor, and gives positive reinforcement to the lecture material.

  20. Experiments in Particle Astrophysics

    Energy Technology Data Exchange (ETDEWEB)

    Boratav, M

    2004-07-01

    During the last decade, the field of what is currently called particle astrophysics (that I prefer to the shaky neologism astroparticle physics) has experienced a surprising growth. It is interesting to understand why the cosmic rays, the poor man's accelerator not no long ago, are becoming the object of scrutiny for a continuously growing community of theoreticians and experimentalists. In this article, we made an arbitrary choice of a small number of experiments to illustrate today's state of the art and the future perspectives in this domain. Our choice is based on three facts: the objects detected in each experiment are different, all the selected experiments are in their starting phase and all are spectacular for various reasons. Our aim is to convince the reader of the enormous discovery potential of these ongoing projects and share with him the excitement experienced by those involved in them. (Author) 37 refs.

  1. The Experiment as Act

    DEFF Research Database (Denmark)

    Søndergaard, Morten

    seminal experiments between poetry, sound and media. This paper will focus on the methodologies of ‘archiving’ experimental artforms. The ‘archive’, here, is argued to be in-between a gathering of objects and the simulation of time (Ernst). The archive presents one of the great cultural enigmas of our......In December 1965, an experiment took place at The Independent Art Space in Copenhagen (Den Frie Kunstbygning). Short named POEX65, it was looking to create and activate POetry EXperiments across artistic genres and formats (thus, in essence, making a POetry EXposition). The POEX65 event framed many...... time: It is constructed like a (sub)medium that collects our cultural history; at the same time, the archive often ‘forgets’ it’s own pre-experimental status and simply slips into a state of unconscious repetition which allows parallel histories to emerge in-between everything else. This paper tries...

  2. Cooperative Prototyping Experiments

    DEFF Research Database (Denmark)

    Bødker, Susanne; Grønbæk, Kaj

    1989-01-01

    This paper describes experiments with a design technique that we denote cooperative prototyping. The experiments consider design of a patient case record system for municipal dental clinics in which we used HyperCard, an off the shelf programming environment for the Macintosh. In the ecperiments we...... tried to achieve a fluent work-like evaluation of prototypes where users envisioned future work with a computer tool, at the same time as we made on-line modifications of prototypes in cooperation with the users when breakdown occur in their work-like evaluation. The experiments showed...... that it was possible to make a number of direct manipulation changes of prototypes in cooperation with the users, in interplay with their fluent work-like evaluation of these. However, breakdown occurred in the prototyping process when we reached the limits of the direct manipulation support for modification. From...

  3. Experiment SPHERE status 2008

    Energy Technology Data Exchange (ETDEWEB)

    Shaulov, S.B., E-mail: shaul@sci.lebedev.r [P.N.Lebedev Physical Institute, Russian Academy of Sciences, Leninsky prospect 53, Moscow 119991 (Russian Federation); Besshapov, S.P.; Kabanova, N.V.; Sysoeva, T.I. [P.N.Lebedev Physical Institute, Russian Academy of Sciences, Leninsky prospect 53, Moscow 119991 (Russian Federation); Antonov, R.A.; Anyuhina, A.M.; Bronvech, E.A.; Chernov, D.V.; Galkin, V.I. [Skobeltsyn Institute of Nuclear Physics, Lomonosov State University, Moscow 119992 (Russian Federation); Tkaczyk, W. [Department of Experimental Physics of University of Lodz (Poland); Finger, M. [Karlov University, Prague (Czech Republic); Sonsky, M. [COMPAS Consortium, Turnov (Czech Republic)

    2009-12-15

    The expedition carried out in March, 2008 to Lake Baikal became an important stage in the development of the SPHERE experiment. During the expedition the SPHERE-2 installation was hoisted, for the first time, on a tethered balloon, APA, to a height of 700 m over the lake surface covered with ice and snow. A series of test measurements were made. Preliminary results of the data processing are presented. The next plan of the SPHERE experiment is to begin a set of statistics for constructing the CR spectrum in the energy range 10{sup 16}-10{sup 18} eV.

  4. World Ocean Circulation Experiment

    Science.gov (United States)

    Clarke, R. Allyn

    1992-01-01

    The oceans are an equal partner with the atmosphere in the global climate system. The World Ocean Circulation Experiment is presently being implemented to improve ocean models that are useful for climate prediction both by encouraging more model development but more importantly by providing quality data sets that can be used to force or to validate such models. WOCE is the first oceanographic experiment that plans to generate and to use multiparameter global ocean data sets. In order for WOCE to succeed, oceanographers must establish and learn to use more effective methods of assembling, quality controlling, manipulating and distributing oceanographic data.

  5. Initial Cooling Experiment (ICE)

    CERN Multimedia

    Photographic Service

    1978-01-01

    In 1977, in a record-time of 9 months, the magnets of the g-2 experiment were modified and used to build a proton/antiproton storage ring: the "Initial Cooling Experiment" (ICE). It served for the verification of the cooling methods to be used for the "Antiproton Project". Stochastic cooling was proven the same year, electron cooling followed later. Also, with ICE the experimental lower limit for the antiproton lifetime was raised by 9 orders of magnitude: from 2 microseconds to 32 hours. For its previous life as g-2 storage ring, see 7405430. More on ICE: 7711282, 7809081, 7908242.

  6. The OPERA experiment

    CERN Document Server

    Pessard, H

    2001-01-01

    Following the Super-Kamiokande findings on atmospheric neutrinos, accelerator neutrinos have started to be exploited to confirm the indication for neutrino oscillations and perform more complete measurements of the mass differences and mixing parameters. In Europe, the long baseline beam CERN Neutrino to Gran Sasso CNGS is aimed at direct appearance searches of nu /sub mu / to nu /sub tau /. The OPERA experiment in Gran sasso will use photographic emulsions in a large hybrid detector to point at nu , interactions coming from the CNGS beam in a "zero background" approach. The principles of the experiment and its projected performances are described. (12 refs).

  7. Experiments versus simultations

    DEFF Research Database (Denmark)

    Baltser, Jana

    The world of instrumentation utilising X-ray radiation is expanding and leading to more sophisticated experiments. Every step of this process requires accurate calculation, and this is where simulation plays an important role. With the advert of modern computers and technologies, simulation has...... become a very powerful tool, which allows prediction of experimental outcomes with high precision and accuracy. The present Ph. D. work is dedicated to development of such a simulation tool based on a ray-tracing technique, McXtrace, its application for modelling of experiments at a synchrotron beamline...

  8. The Dialogue of Experience

    DEFF Research Database (Denmark)

    Jørgensen, Dorthe

    2016-01-01

    from ‘school philosophy’ or ‘applied philosophy.’ The concept of ‘world-engaged philosophy’ is associated with Jørgensen’s concept of ‘world poetry’: that the immanent world is ambiguous; it occasions experiences of a surplus of meaning, traditionally called beauty. Furthermore, both concepts......, theology, and philosophy, are thus interrelated. ‘Experience’ and ‘dialogue’ also play crucial roles in Vattimo’s understanding of philosophy, and recent works such as Hermeneutic Communism confirm that his thought continues to be world-engaged. Jørgensen’s philosophy of experience allows for a development...

  9. DEEP UNDERGROUND NEUTRINO EXPERIMENT

    Energy Technology Data Exchange (ETDEWEB)

    Wilson, Robert J. [Fermilab

    2016-03-03

    The Deep Underground Neutrino Experiment (DUNE) collaboration will perform an experiment centered on accelerator-based long-baseline neutrino studies along with nucleon decay and topics in neutrino astrophysics. It will consist of a modular 40-kt (fiducial) mass liquid argon TPC detector located deep underground at the Sanford Underground Research Facility in South Dakota and a high-resolution near detector at Fermilab in Illinois. This conguration provides a 1300-km baseline in a megawatt-scale neutrino beam provided by the Fermilab- hosted international Long-Baseline Neutrino Facility.

  10. The Digital Archive Experience

    DEFF Research Database (Denmark)

    2009-01-01

    This article, as well as the book, investigates the ways in which new digital media may enhance the experience of the art-archive. Taken as a whole, the new media is a vital component of a 'transdisciplinary' and transformative field, a cultural landscape that is changing rapidly the conditions...... on paper but seldom succeeds in reality. Such websites often ignore the physical and social experience of a museum visit. Curiously, when they are most successful, websites often compete with the actual museum, possibly reducing the number of visitors and diluting the effect of seeing art first hand...

  11. The Archimedes experiment

    CERN Document Server

    Calloni, Enrico; De Laurentis, Martina; Esposito, Giampiero; Grilli, M; Majorana, Ettore; Pepe, G P; Petrarca, S; Puppo, Paola; Rapagnini, P; Ricci, F; Rosa, Luigi; Rovelli, Carlo; Ruggi, P; Saini, N L; Stornaiolo, Cosimo; Tafuri, Francesco

    2015-01-01

    Archimedes is an INFN-funded pathfinder experiment aimed at verifying the feasibility of measuring the interaction of vacuum fluctuations with gravity. The final experiment will measure the force exerted by the gravitational field on a Casimir cavity whose vacuum energy is modulated with a superconductive transition, by using a balance as a small force detector. Archimedes is a two-year project devoted to test the most critical experimental aspects, in particular the balance resonance frequency and quality factor, the thermal modulation efficiency and the superconductive sample realization.

  12. The Archimedes experiment

    Science.gov (United States)

    Calloni, E.; Caprara, S.; Laurentis, M. De; Esposito, G.; Grilli, M.; Majorana, E.; Pepe, G. P.; Petrarca, S.; Puppo, P.; Rapagnani, P.; Ricci, F.; Rosa, L.; Rovelli, C.; Ruggi, P.; Saini, N. L.; Stornaiolo, C.; Tafuri, F.

    2016-07-01

    Archimedes is an INFN-funded pathfinder experiment aimed at verifying the feasibility of measuring the interaction of vacuum fluctuations with gravity. The final experiment will measure the force exerted by the gravitational field on a Casimir cavity whose vacuum energy is modulated with a superconductive transition, by using a balance as a small force detector. Archimedes is two-year project devoted to test the most critical experimental aspects, in particular the balance resonance frequency and quality factor, the thermal modulation efficiency and the superconductive sample realization.

  13. NA44 experiment

    CERN Document Server

    1990-01-01

    General view of NA44 experiment. NA44 is one of the seven experiments (NA44, NA45, NA49, NA50, NA52, WA97/NA57 and WA98) involved in CERN'S Heavy Ion programme which provided evidence for the existence of a new state of matter in which quarks, instead of being bound up into more complex particles such as protons and neutrons, are liberated and roam freely. Theory predicts that this state must have existed at about 10 microseconds after the Big Bang, before the formation of matter as we know it today.

  14. The Experience City

    DEFF Research Database (Denmark)

    Marling, Gitte; Jensen, Ole B.; Kiib, Hans

    2012-01-01

    findings. The projects are categorised according to their content, structure and urban localisation. In particular the cases are labelled in relation to their strategic and urban planning importance, their social and cultural content and their architectural representation and the programmes they contain...... to relate to the wider international debate and development. In section two we present the main theoretical concepts and framings that will guide the understanding and the analysis of the experience city. In section three we focus on the design of the ‘Danish experience city’ and present the first research...

  15. Belief Elicitation in Experiments

    DEFF Research Database (Denmark)

    Blanco, Mariana; Engelmann, Dirk; Koch, Alexander

    Belief elicitation in economics experiments usually relies on paying subjects according to the accuracy of stated beliefs in addition to payments for other decisions. Such incentives, however, allow risk-averse subjects to hedge with their stated beliefs against adverse outcomes of other decisions...... in the experiment. This raises two questions: (i) can we trust the existing belief elicitation results, (ii) can we avoid potential hedging confounds? Our results instill confidence regarding both issues. We propose an experimental design that eliminates hedging opportunities, and use this to test for the empirical...

  16. Future of neutrino experiments

    Indian Academy of Sciences (India)

    Takaaki Kajita

    2009-01-01

    Atmospheric, solar, reactor and accelerator neutrino oscillation experiments have measured $ m_{12}^{2}$, sin2 12, $| m_{23}^{2} |$ and sin2 223. The next stage of the oscillation studies should be the observation of a finite sin2 213. If a non-zero sin2 213 is observed, the subsequent goals should be the observation of the CP violation and the determination sign of $ m_{23}^{2}$. Possible future neutrino oscillation experiments that could assess these questions are discussed.

  17. The Archimedes experiment

    Energy Technology Data Exchange (ETDEWEB)

    Calloni, E. [University of Napoli Federico II and INFN Napoli (Italy); Caprara, S. [University of Roma Sapienza and INFN Roma (Italy); Laurentis, M. De; Esposito, G. [University of Napoli Federico II and INFN Napoli (Italy); Grilli, M.; Majorana, E. [University of Roma Sapienza and INFN Roma (Italy); Pepe, G.P. [University of Napoli Federico II and INFN Napoli (Italy); Petrarca, S. [University of Roma Sapienza and INFN Roma (Italy); Puppo, P., E-mail: paola.puppo@roma1.infn.it [University of Roma Sapienza and INFN Roma (Italy); Rapagnani, P.; Ricci, F. [University of Roma Sapienza and INFN Roma (Italy); Rosa, L. [University of Napoli Federico II and INFN Napoli (Italy); Rovelli, C. [University of Aix-Marseille (France); Ruggi, P. [European Gravitational Observatory (EGO), Cascina (Pisa) (Italy); Saini, N.L. [University of Roma Sapienza and INFN Roma (Italy); Stornaiolo, C.; Tafuri, F. [University of Napoli Federico II and INFN Napoli (Italy)

    2016-07-11

    Archimedes is an INFN-funded pathfinder experiment aimed at verifying the feasibility of measuring the interaction of vacuum fluctuations with gravity. The final experiment will measure the force exerted by the gravitational field on a Casimir cavity whose vacuum energy is modulated with a superconductive transition, by using a balance as a small force detector. Archimedes is two-year project devoted to test the most critical experimental aspects, in particular the balance resonance frequency and quality factor, the thermal modulation efficiency and the superconductive sample realization. - Highlights: • Weight of the vacuum. • Superconductive stacks studies. • Thermal behavior studies at cryogenic temperatures.

  18. AGS experiments, 1988, 1989, 1990

    Energy Technology Data Exchange (ETDEWEB)

    Depken, J.C.

    1991-04-01

    This report contains: experimental areas layout; table of beam parameters and fluxes; experiment schedule as run''; experiment long range schedule; a listing of experiments by number; two-page summaries of each experiment begin here, also ordered by number; publications of AGS experiments; and list of experimenters.

  19. AGS experiments: 1985, 1986, 1987

    Energy Technology Data Exchange (ETDEWEB)

    Depken, J.C.

    1987-01-01

    This report contains: Experimental areas layout, table of beam parameters and fluxes, experiment schedule ''as run,'' experiment long range schedule, a listing of experiments by number, two-page summaries of each experiment, also ordered by number, and publications of AGS experiments, 1982-1987.

  20. Art and experience

    NARCIS (Netherlands)

    Gerwen, R.C.H.M. van

    1996-01-01

    This three-part dissertation is on the double role of experience in art: as a subject matter, and as the vehicle for our evaluations. It argues (Part three, Chs. 7, 8) for the inclusion within contemporary analytical ‘cognitivism’ (Part one, Chs. 1-3) of certain arguments from the founding fathers

  1. Electronics for LHC Experiments

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    This document gathers the abstracts of most presentations made at this workshop on electronics for the large hadron collider (LHC) experiments. The presentations were arranged into 6 sessions: 1) electronics for tracker, 2) trigger electronics, 3) detector control systems, 4) data acquisition, 5) electronics for calorimeters and electronics for muons, and 6) links, power systems, grounding and shielding, testing and quality assurance.

  2. The PADME experiment

    CERN Document Server

    ,

    2016-01-01

    The PADME experiment, hosted at the Laboratori Nazionali di Frascati, will search for a Dark Photon that decays in invisible channels with a mass up to $23.7\\,\\mbox{MeV}$ and coupling constant down to $10^{-3}$.

  3. Democratic design experiments

    DEFF Research Database (Denmark)

    Ehn, Pelle; Brandt, Eva; Halse, Joachim

    2016-01-01

    we here see design engagements which are both controversial in their commitment to agendas of social change and experimental in the sense that they openly probe for what can possibly be enacted. In this conversation we want to explore how such engagements may be seen as democratic design experiments...

  4. The big experiment

    CERN Multimedia

    MacEacheran, Mike

    2010-01-01

    "From an academic laboratory in Switzerland, Cern, the European Organisation for Nuclear Research, is conducting physics experiments that are mesmerising everyone. But are its scientitsts really going to answer the questions of life, the Univers and everyhing in between?" (4 pages)

  5. The COMPASS experiment

    CERN Multimedia

    Laurent Guiraud

    1999-01-01

    Detail of one of the magnets on the Common Muon and Proton Apparatus for Structure and Spectroscopy (COMPASS) experiment. COMPASS studies the structure of composite particles which interact via the strong force, called hadrons. These have a complicated internal structure due to the nature of their force carriers, gluons, which can form self interacting bunches called glueballs.

  6. Science and Human Experience

    Science.gov (United States)

    Cooper, Leon N.

    2015-01-01

    Part I. Science and Society: 1. Science and human experience; 2. Does science undermine our values?; 3. Can science serve mankind?; 4. Modern science and contemporary discomfort: metaphor and reality; 5. Faith and science; 6. Art and science; 7. Fraud in science; 8. Why study science? The keys to the cathedral; 9. Is evolution a theory? A modest proposal; 10. The silence of the second; 11. Introduction to Copenhagen; 12. The unpaid debt; Part II. Thought and Consciousness: 13. Source and limits of human intellect; 14. Neural networks; 15. Thought and mental experience: the Turing test; 16. Mind as machine: will we rubbish human experience?; 17. Memory and memories: a physicist's approach to the brain; 18. On the problem of consciousness; Part III. On the Nature and Limits of Science: 19. What is a good theory?; 20. Shall we deconstruct science?; 21. Visible and invisible in physical theory; 22. Experience and order; 23. The language of physics; 24. The structure of space; 25. Superconductivity and other insoluble problems; 26. From gravity to light and consciousness: does science have limits?

  7. The Alpha Antihydrogen Experiment

    Science.gov (United States)

    Madsen, N.; Andresen, G.; Bertsche, W.; Boston, A.; Bowe, P. D.; Butler, E.; Cesar, C. L.; Chapman, S.; Charlton, M.; Chartier, M.; Fajans, J.; Funakoshi, R.; Gill, D. R.; Hangst, J. S.; Hardy, W. N.; Hayano, R. S.; Hayden, M.; Hydomako, R.; Jenkins, M. J.; Jørgensen, L. V.; Kurchaninov, L.; Nolan, P.; Olchanski, K.; Olin, A.; Page, R. D.; Povilus, A.; Robicheaux, F.; Sarid, E.; Seif El Nasr, S.; Silveira, D. M.; Storey, J. W.; Thompson, R. I.; van der Werf, D. P.; Wurtele, J. S.; Yamazaki, Y.

    2008-03-01

    ALPHA is a new experiment at the CERN Antiproton Decelerator (AD). The short term goal of ALPHA is trapping of cold antihydrogen, with the long term goal of conducting precise spectroscopic comparisons of hydrogen and antihydrogen. Here we present the current status of ALPHA and the physics considerations and results leading to its design as well as recent progress towards trapping.

  8. Alpha Antihydrogen Experiment

    Science.gov (United States)

    Fujiwara, M. C.; Andresen, G. B.; Ashkezari, M. D.; Baquero-Ruiz, M.; Bertsche, W.; Bray, C. C.; Butler, E.; Cesar, C. L.; Chapman, S.; Charlton, M.; Cesar, C. L.; Fajans, J.; Friesen, T.; Gill, D. R.; Hangst, J. S.; Hardy, W. N.; Hayano, R. S.; Hayden, M. E.; Humphries, A. J.; Hydomako, R.; Jonsell, S.; Kurchaninov, L.; Lambo, R.; Madsen, N.; Menary, S.; Nolan, P.; Olchanski, K.; Olin, A.; Povilus, A.; Pusa, P.; Robicheaux, F.; Sarid, E.; Silveira, D. M.; So, C.; Storey, J. W.; Thompson, R. I.; van der Werf, D. P.; Wilding, D.; Wurtele, J. S.; Yamazaki, Y.

    2011-12-01

    ALPHA is an experiment at CERN, whose ultimate goal is to perform a precise test of CPT symmetry with trapped antihydrogen atoms. After reviewing the motivations, we discuss our recent progress toward the initial goal of stable trapping of antihydrogen, with some emphasis on particle detection techniques.

  9. Qualitative experiments in psychology

    DEFF Research Database (Denmark)

    Wagoner, Brady

    2015-01-01

    was in a state of transition from a focus on elements (the concern of psychophysics) to a focus on wholes (the concern of Gestalt psychology). The defining feature of BARTLETT's early experiments is his holistic treatment of human responses, in which the basic unit of analysis is the active person relating...

  10. Conducting Social Experiments.

    Science.gov (United States)

    Boruch, Robert F.

    1987-01-01

    It is difficult to conduct randomized field experiments. In the past decade, the use of alternative randomization plans and incentives has contributed to their operational feasibility; legal, ethical, and professional arguments for experimentation have matured; and expectations have become better aligned with practical constraints that are likely…

  11. Democratic design experiments

    DEFF Research Database (Denmark)

    Ehn, Pelle; Brandt, Eva; Halse, Joachim

    2016-01-01

    we here see design engagements which are both controversial in their commitment to agendas of social change and experimental in the sense that they openly probe for what can possibly be enacted. In this conversation we want to explore how such engagements may be seen as democratic design experiments...

  12. The Huck Finn Experience.

    Science.gov (United States)

    Levesque, Bonnie; And Others

    This paper describes "The Huck Finn Experience," a high motivation interdisciplinary unit that takes students on a 6-week journey back to the life and times of Mark Twain through the fictional character of Huckleberry Finn. The unit described in the paper was designed for eighth-grade students but could be easily adapted to be successful with…

  13. A Harmonic Motion Experiment

    Science.gov (United States)

    Gluck, P.; Krakower, Zeev

    2010-01-01

    We present a unit comprising theory, simulation and experiment for a body oscillating on a vertical spring, in which the simultaneous use of a force probe and an ultrasonic range finder enables one to explore quantitatively and understand many aspects of simple and damped harmonic motions. (Contains 14 figures.)

  14. Social experience infrastructure

    DEFF Research Database (Denmark)

    Kvistgaard, Peter

    2006-01-01

    Using the case of Kühlungsborn in Mecklenburg-Vorpommern as an example of a resort in which social experience infrastructure plays a pivotal role in the ongoing success of attracting German tourists from especially Berlin, Hamburg and Hanover it is the aim of this article in a descriptive...

  15. An Unhappy Experience.

    Science.gov (United States)

    Ali, Aydin Mehmet

    1998-01-01

    A study of 10 Cypriotturkish young people in British universities identified the factors they perceive as having had an impact on their achievement. Negative experiences in secondary and higher education included teachers' low expectations, racism, and lack of role models/mentors. Women were more aware of these issues than men were. (JOW)

  16. "Experience and Learning"

    DEFF Research Database (Denmark)

    Olesen, Henning Salling

    2007-01-01

    concepts derived from European critical theory, subjectivity and experience, are briefly introduced with a view to their intellectual background. The chapter elaborates the implication of these concepts in relation to the understanding of emotional aspects of learning in everyday work life and in relation...

  17. Belief Elicitation in Experiments

    DEFF Research Database (Denmark)

    Blanco, Mariana; Engelmann, Dirk; Koch, Alexander

    Belief elicitation in economics experiments usually relies on paying subjects according to the accuracy of stated beliefs in addition to payments for other decisions. Such incentives, however, allow risk-averse subjects to hedge with their stated beliefs against adverse outcomes of other decisions......-belief elicitation treatment using a financial investment frame, where hedging arguably would be most natural....

  18. A Monopoly Classroom Experiment.

    Science.gov (United States)

    Oxoby, Robert J.

    2001-01-01

    Uses a simple classroom experiment to develop the economic model of monopoly. Introduces students to the nature of the monopoly problem and motivates them to think of the associated effects. Highlights the role of information and fairness ideals in determining economic outcomes. (RLH)

  19. Outdoor Experiences and Sustainability

    Science.gov (United States)

    Prince, Heather E.

    2017-01-01

    Positive outdoor teaching and learning experiences and sound pedagogical approaches undoubtedly have contributed towards an understanding of environmental sustainability but it is not always clear how, and to what extent, education can translate into action. This article argues, with reference to social learning theory, that role modelling,…

  20. Enhance Your Twitter Experience

    Science.gov (United States)

    Miller, Shannon McClintock

    2010-01-01

    The author has been encouraging teachers, students, and others to join Twitter and build their personal learning networks (PLNs) ever since she delved into this great social networking site. In this article, she offers a few other tools and tips that can improve the Twitter experience of those who have opened up an account and dabbled a bit but…

  1. Condensed landscape experience

    DEFF Research Database (Denmark)

    Earon, Ofri

    2011-01-01

    . This paper addresses the question of whether the sensation of landscape can be condensed in function or to the size of an urban building. It also discusses the benefits and potentials of the amalgamate, by underlining the unique qualities of such a hybrid. In an attempt to define the experience of landscape...

  2. Experience of exclusion

    DEFF Research Database (Denmark)

    Pedersen, Maria; Overgaard, Dorthe; Andersen, Ingelise

    2017-01-01

    this phenomenon. The aim of the study was to explore the patient experience of barriers to completion of phase II cardiac rehabilitation, and to investigate the impact of socioeconomic factors on completion of cardiac rehabilitation. METHODS: The study had a qualitative explorative design using semi...

  3. The Transgender Military Experience

    Directory of Open Access Journals (Sweden)

    Michelle Dietert

    2015-04-01

    Full Text Available Although there have been studies that focus on the experiences of the gay and lesbian population serving in the United States military, few have focused on the experience of active duty transgender service members. Transgender individuals transgress the binary conception of gender by deviating from societal gender norms associated with assigned sex at birth. The Department of Defense has set policies and standards that reflect a binary conception of gender, with a focus on conformity. We argue that able-bodied gender variant service personnel are just as capable of serving their country as anyone else. Because of the repercussions associated with active duty transgender military personnel, our sample is small and involves nine clandestine service members and two international service members who wanted to share their stories from a different perspective. Snowball sampling was aimed at finding current active duty and reserve transgender service members. Using a combination of telephone interviews and questionnaires, data were collected from active duty transgender service personnel throughout the United States and two from international militaries that allow transgender people to serve. Data collection focused on the overall experiences of the participants along with questions regarding workplace discrimination, suggestions for policy changes, and their views about the overturn of Don’t Ask, Don’t Tell. Our findings add to a growing source of information about the transgender military experience in the U.S. armed forces and the importance of overturning discriminatory workplace policies that negatively impact transgender service members.

  4. Experiments on Photoconductivity

    Science.gov (United States)

    Kraftmakher, Yaakov

    2012-01-01

    Computer-assisted experiments with CdS and CdSe photoresistors are described. The most important characteristics of the photoresistors are determined: (i) the spectral response, (ii) the photocurrent versus incident radiant power, (iii) the rise and decay time constants and (iv) the frequency response to modulated light. The photoconductivity gain…

  5. Alpha Antihydrogen Experiment

    CERN Document Server

    Fujiwara, M C; Ashkezari, M D; Baquero-Ruiz, M; Bertsche, W; Bray, C C; Butler, E; Cesar, C L; Chapman, S; Charlton, M; Cesar, C L; Fajans, J; Friesen, T; Gill, D R; Hangst, J S; Hardy, W N; Hayano, R S; Hayden, M E; Humphries, A J; Hydomako, R; Jonsell, S; Kurchaninov, L; Lambo, R; Madsen, N; Menary, S; Nolan, P; Olchanski, K; Olin, A; Povilus, A; Pusa, P; Robicheaux, F; Sarid, E; Silveira, D M; So, C; Storey, J W; Thompson, R I; van der Werf, D P; Wilding, D; Wurtele, J S; Yamazaki, Y

    2011-01-01

    ALPHA is an experiment at CERN, whose ultimate goal is to perform a precise test of CPT symmetry with trapped antihydrogen atoms. After reviewing the motivations, we discuss our recent progress toward the initial goal of stable trapping of antihydrogen, with some emphasis on particle detection techniques.

  6. Understanding Popper's experiment

    Science.gov (United States)

    Qureshi, Tabish

    2005-06-01

    An experiment proposed by Karl Popper is considered by many to be a crucial test of quantum mechanics. Although many loopholes in the original proposal have been pointed out, they are not crucial to the test. We use only the standard interpretation of quantum mechanics to point out what is fundamentally wrong with the proposal, and demonstrate that Popper's basic premise was faulty.

  7. Neutrino Experiments Highlights

    CERN Document Server

    Wong, H T

    2001-01-01

    This article consists of two parts. The first section presents the highlights on the goals of neutrino physics, status of the current neutrino experiments and future directions and program. The second section describes the theme, program and research efforts for the TEXONO Collaboration among scientists from Taiwan and China.

  8. Experiments with Dipole Antennas

    Science.gov (United States)

    Kraftmakher, Yaakov

    2009-01-01

    Employment of a data-acquisition system for data collection and calculations makes experiments with antennas more convenient and less time consuming. The determined directional patterns of the dipole antennas of different lengths are in reasonable agreement with theory. The enhancement of the signal by using a reflector is demonstrated, and a…

  9. The Santabot Experiment

    DEFF Research Database (Denmark)

    2009-01-01

    The focus is to study people's willingness to interact, and their reaction when a robot enters their daily environment. The robot autonomously detects and follows people, while keeping a safe distance. The conclusion was that people were positive towards robots in their daily life. The experiments...

  10. Experiment R701

    CERN Multimedia

    1974-01-01

    This experiment was designed by the CERN-Aachen-MPI/Munich-Heidelberg Collaboration to study inelastic proton-proton collisions with streamer chambers. The photo shows the lower streamer chamber closely fitting around the central bicone vacuum chamber at I-7. The upper chamber, here removed, was similarly fitted (Photo Archive 7401099).

  11. Experiences of Collaborative Research

    Science.gov (United States)

    Kahneman, Daniel

    2003-01-01

    The author's personal history of the research that led to his recognition in economics is described, focusing on the process of collaboration and on the experience of controversy. The author's collaboration with Amos Tversky dealt with 3 major topics: judgment under uncertainty, decision making, and framing effects. A subsequent collaboration,…

  12. Caring Experience and Knowledge

    DEFF Research Database (Denmark)

    Dybbroe, Betina

    2005-01-01

    ,didactics and educational thinking- and students experiences and sensing, and illuminates excluding processes in classrooms related to emotional, non-cognitive and relational aspects of the qualifying process. This is set into a larger framework of the biographical professionalization processes of students...

  13. Cyclic Voltammetry Experiment.

    Science.gov (United States)

    Van Benschoten, James J.; And Others

    1983-01-01

    Describes a three-part experiment designed to introduce cyclic voltammetry to graduate/undergraduate students. Part 1 demonstrates formal reduction potential, redox electron transfer, diffusion coefficient, and electrochemical reversibility. Part 2 investigates electrochemical behavior of acetaminophen. Part 3 examines such experimental variables…

  14. Art and experience

    NARCIS (Netherlands)

    Gerwen, R.C.H.M. van

    2001-01-01

    This three-part dissertation is on the double role of experience in art: as a subject matter, and as the vehicle for our evaluations. It argues (Part three, Chs. 7, 8) for the inclusion within contemporary analytical ‘cognitivism’ (Part one, Chs. 1-3) of certain arguments from the founding fathers o

  15. A Simple Adsorption Experiment

    Science.gov (United States)

    Guirado, Gonzalo; Ayllon, Jose A.

    2011-01-01

    The study of adsorption phenomenon is one of the most relevant and traditional physical chemistry experiments performed by chemistry undergraduate students in laboratory courses. In this article, we describe an easy, inexpensive, and straightforward way to experimentally determine adsorption isotherms using pieces of filter paper as the adsorbent…

  16. FLORIDA TOWER FOOTPRINT EXPERIMENTS

    Energy Technology Data Exchange (ETDEWEB)

    WATSON,T.B.; DIETZ, R.N.; WILKE, R.; HENDREY, G.; LEWIN, K.; NAGY, J.; LECLERC, M.

    2007-01-01

    The Florida Footprint experiments were a series of field programs in which perfluorocarbon tracers were released in different configurations centered on a flux tower to generate a data set that can be used to test transport and dispersion models. These models are used to determine the sources of the CO{sub 2} that cause the fluxes measured at eddy covariance towers. Experiments were conducted in a managed slash pine forest, 10 km northeast of Gainesville, Florida, in 2002, 2004, and 2006 and in atmospheric conditions that ranged from well mixed, to very stable, including the transition period between convective conditions at midday to stable conditions after sun set. There were a total of 15 experiments. The characteristics of the PFTs, details of sampling and analysis methods, quality control measures, and analytical statistics including confidence limits are presented. Details of the field programs including tracer release rates, tracer source configurations, and configuration of the samplers are discussed. The result of this experiment is a high quality, well documented tracer and meteorological data set that can be used to improve and validate canopy dispersion models.

  17. The OLYMPUS experiment

    Energy Technology Data Exchange (ETDEWEB)

    Milner, R.; Hasell, D.K. [Massachusetts Institute of Technology, Cambridge, MA (United States); Kohl, M. [Hampton Univ., Hampton, VA (United States); Collaboration: The OLYMPUS Collaboration; and others

    2013-12-15

    The OLYMPUS experiment was designed to measure the ratio between the positron-proton and electron-proton elastic scattering cross sections, with the goal of determining the contribution of two-photon exchange to the elastic cross section. Two-photon exchange might resolve the discrepancy between measurements of the proton form factor ratio, {mu}{sub p}G{sup p}{sub E}/G{sup p}{sub M}, made using polarization techniques and those made in unpolarized experiments. OLYMPUS operated on the DORIS storage ring at DESY, alternating between 2.01 GeV electron and positron beams incident on an internal hydrogen gas target. The experiment used a toroidal magnetic spectrometer instrumented with drift chambers and time-of-flight detectors to measure rates for elastic scattering over the polar angular range of approximately 25 -75 . Symmetric Moeller/Bhabha calorimeters at 1.29 and telescopes of GEM and MWPC detectors at 12 served as luminosity monitors. A total luminosity of approximately 4.5 fb{sup -1} was collected over two running periods in 2012. This paper provides details on the accelerator, target, detectors, and operation of the experiment.

  18. Child Psychology Experiences Program.

    Science.gov (United States)

    Walla Walla Coll., WA.

    Recognizing the need for trained teachers to enter the classroom with confidence and professional capacity, Walla Walla College introduced a Child Psychology Experience program. Personnel from several departments contribute to this program. In connection with the child psychology courses, the project features a laboratory/demonstration center…

  19. The Doppler Pendulum Experiment

    Science.gov (United States)

    Lee, C. K.; Wong, H. K.

    2011-01-01

    An experiment to verify the Doppler effect of sound waves is described. An ultrasonic source is mounted at the end of a simple pendulum. As the pendulum swings, the rapid change of frequency can be recorded by a stationary receiver using a simple frequency-to-voltage converter. The experimental results are in close agreement with the Doppler…

  20. The Majorana Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Aalseth, Craig E.; Aguayo Navarrete, Estanislao; Amman, M.; Avignone, F. T.; Back, Henning O.; Bai, Xinhua; Barabash, Alexander S.; Barbeau, P. S.; Bergevin, M.; Bertrand, F.; Boswell, M.; Brudanin, V.; Bugg, William; Burritt, Tom H.; Busch, Matthew; Capps, Greg L.; Chan, Yuen-Dat; Collar, J. I.; Cooper, R. J.; Creswick, R.; Detwiler, Jason A.; Diaz, J.; Doe, Peter J.; Efremenko, Yuri; Egorov, Viatcheslav; Ejiri, H.; Elliott, S. R.; Ely, James H.; Esterline, James H.; Farach, H. A.; Fast, James E.; Fields, N.; Finnerty, P.; Fraenkle, Florian; Gehman, Victor M.; Giovanetti, G. K.; Green, M.; Guiseppe, Vincente; Gusey, K.; Hallin, A. L.; Harper, Gregory; Hazama, R.; Henning, Reyco; Hime, Andrew; Hong, H.; Hoppe, Eric W.; Hossbach, Todd W.; Howard, Stanley; Howe, M. A.; Johnson, R. A.; Keeter, K.; Keillor, Martin E.; Keller, C.; Kephart, Jeremy D.; Kidd, M. F.; Knecht, A.; Kochetov, Oleg; Konovalov, S.; Kouzes, Richard T.; LaRoque, B. H.; Leviner, L.; Loach, J. C.; Luke, P.; MacMullin, S.; Marino, Michael G.; Martin, R. D.; Medlin, D.; Mei, Dong-Ming; Miley, Harry S.; Miller, M. L.; Mizouni, Leila; Myers, Allan W.; Nomachi, Masaharu; Orrell, John L.; Peterson, David; Phillips, D.; Poon, Alan; Perevozchikov, O.; Perumpilly, Gopakumar; Prior, Gersende; Radford, D. C.; Reid, Douglas J.; Rielage, Keith; Robertson, R. G. H.; Rodriguez, Larry; Ronquest, M. C.; Salazar, Harold; Schubert, Alexis G.; Shima, T.; Shirchenko, M.; Sobolev, V.; Steele, David; Strain, J.; Swift, Gary; Thomas, K.; Timkin, V.; Tornow, W.; Van Wechel, T. D.; Vanyushin, I.; Varner, R. L.; Vetter, Kai; Vorren, Kris R.; Wilkerson, J. F.; Wolfe, B. A.; Xiang, W.; Yakushev, E.; Yaver, Harold; Young, A.; Yu, Chang-Hong; Yumatov, V.; Zhang, C.

    2011-08-01

    The Majorana Collaboration is assembling an array of HPGe detectors to search for neutrinoless double-beta decay in 76Ge. Initially, Majorana aims to construct a prototype module to demonstrate the potential of a future 1-tonne experiment. The design and potential reach of this prototype Demonstrator module are presented.

  1. Electrophoresis experiments in microgravity

    Science.gov (United States)

    Snyder, Robert S.; Rhodes, Percy H.

    1991-01-01

    The use of the microgravity environment to separate and purify biological cells and proteins has been a major activity since the beginning of the NASA Microgravity Science and Applications program. Purified populations of cells are needed for research, transplantation and analysis of specific cell constituents. Protein purification is a necessary step in research areas such as genetic engineering where the new protein has to be separated from the variety of other proteins synthesized from the microorganism. Sufficient data are available from the results of past electrophoresis experiments in space to show that these experiments were designed with incomplete knowledge of the fluid dynamics of the process including electrohydrodynamics. However, electrophoresis is still an important separation tool in the laboratory and thermal convection does limit its performance. Thus, there is a justification for electrophoresis but the emphasis of future space experiments must be directed toward basic research with model experiments to understand the microgravity environment and fluid analysis to test the basic principles of the process.

  2. The NA48 experiment

    CERN Multimedia

    1995-01-01

    The NA48 experiment is designed to study the Charge-Parity (CP) violation. CP violation is observed in certain very rare decays. Its study is important in understanding Nature's preference of matter over antimatter, which resulted in asymmetry soon after the Big Bang, creating a matter-dominated Universe.

  3. Modelling Urban Experiences

    DEFF Research Database (Denmark)

    Jantzen, Christian; Vetner, Mikael

    2008-01-01

    How can urban designers develop an emotionally satisfying environment not only for today's users but also for coming generations? Which devices can they use to elicit interesting and relevant urban experiences? This paper attempts to answer these questions by analyzing the design of Zuidas, a new...

  4. Parent Hearing Aid Experiences

    Science.gov (United States)

    Munoz, Karen; Roberts, Mallory; Mullings, Day; Harward, Richard

    2012-01-01

    This study addresses parent experiences in obtaining and managing hearing aids for their young child. The purpose was to identify challenges parents encounter to determine what state agencies can do to improve parent access to amplification. Data were collected July through September of 2010; 40 parents of children ages birth to 3 years old…

  5. Experiments versus simultations

    DEFF Research Database (Denmark)

    Baltser, Jana

    become a very powerful tool, which allows prediction of experimental outcomes with high precision and accuracy. The present Ph. D. work is dedicated to development of such a simulation tool based on a ray-tracing technique, McXtrace, its application for modelling of experiments at a synchrotron beamline...

  6. Cyclic Voltammetry Experiment.

    Science.gov (United States)

    Van Benschoten, James J.; And Others

    1983-01-01

    Describes a three-part experiment designed to introduce cyclic voltammetry to graduate/undergraduate students. Part 1 demonstrates formal reduction potential, redox electron transfer, diffusion coefficient, and electrochemical reversibility. Part 2 investigates electrochemical behavior of acetaminophen. Part 3 examines such experimental variables…

  7. The MAJORANA Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Guiseppe, V.E. [Univ S Dakota; Keller, C. [Univ S Dakota; Mei, D-M [Univ S Dakota; Perevozchikov, O. [Univ S Dakota; Perumpilly, G. [Univ S Dakota; Thomas, K. [Univ S Dakota; Xiang, W. [Univ S Dakota; Zhang, C. [Univ S Dakota; Aalseth, C.E. [Pacific NW Natl Lab Richland, WA; Aguayo, E. [Pacific NW Natl Lab Richland, WA; Ely, J. [Pacific NW Natl Lab Richland, WA; Fast, J.E. [Pacific NW Natl Lab Richland, WA; Hoppe, E.W. [Pacific NW Natl Lab Richland, WA; Hossbach, T.W. [Pacific NW Natl Lab Richland, WA; Keillor, M. [Pacific NW Natl Lab Richland, WA; Kephart, J.D. [Pacific NW Natl Lab Richland, WA; Kouzes, R. [Pacific NW Natl Lab Richland, WA; Miley, H.S. [Pacific NW Natl Lab Richland, WA; Mizouni, L. [Pacific NW Natl Lab Richland, WA; Myers, A.W. [Pacific NW Natl Lab Richland, WA; Reid, D. [Pacific NW Natl Lab Richland, WA; Amman, M. [Lawrence Berkeley National Laboratory (LBNL); Bergevin, M. [Lawrence Berkeley National Laboratory (LBNL); Chan, Y-D [Lawrence Berkeley National Laboratory (LBNL); Detwiler, J.A. [Lawrence Berkeley National Laboratory (LBNL); Loach, J.C. [Lawrence Berkeley National Laboratory (LBNL); Luke, P.N. [Lawrence Berkeley National Laboratory (LBNL); Martin, R.D. [Lawrence Berkeley National Laboratory (LBNL); Poon, A.W.P. [Lawrence Berkeley National Laboratory (LBNL); Prior, G. [Lawrence Berkeley National Laboratory (LBNL); Vetter, K. [Lawrence Berkeley National Laboratory (LBNL); Yaver, H. [Lawrence Berkeley National Laboratory (LBNL); Avignone, F.T. III [University of South Carolina; Creswick, R. [University of South Carolina; Farach, H. [University of South Carolina; Mizouni, L. [University of South Carolina; Avignone, Frank Titus [ORNL; Bertrand Jr, Fred E [ORNL; Capps, Gregory L [ORNL; Cooper, Reynold J [ORNL; Radford, David C [ORNL; Varner Jr, Robert L [ORNL; Wilkerson, John F [University of North Carolina, Chapel Hill; Yu, Chang-Hong [ORNL; Back, H.O. [University of North Carolina; Leviner, L. [North Carolina State University; Young, A.R. [North Carolina State University; Back (et al.), H.O. [Triangle Universities Nuclear Laboratory, Durham, NC; Bai, X. [South Dakota School of Mines and Technology; Hong, H. [South Dakota School of Mines and Technology; Howard, S. [South Dakota School of Mines and Technology; Medlin, D. [South Dakota School of Mines and Technology; Sobolev, V. [South Dakota School of Mines and Technology; Barabash, A.S. [Inst Theort & Expt Phys, Moscow, Russia; Konovalov, S.I. [Inst Theort & Expt Phys, Moscow, Russia; Vanyushin, I. [Inst Theort & Expt Phys, Moscow, Russia; Yumatov, V. [Inst Theort & Expt Phys, Moscow, Russia; Barbeau, P.S. [University of Chicago; Collar, J.I. [University of Chicago; Fields, N. [University of Chicago; Boswell (et al.), M. [Los Alamos National Laboratory (LANL); Brudanin, V. [Joint Institute for Nuclear Research, Dubna, Russia; Egorov, V. [Joint Institute for Nuclear Research, Dubna, Russia; Gusey, K. [Joint Institute for Nuclear Research, Dubna, Russia; Kochetov, O. [Joint Institute for Nuclear Research, Dubna, Russia; Shirchenko, M. [Joint Institute for Nuclear Research, Dubna, Russia; Timkin, V. [Joint Institute for Nuclear Research, Dubna, Russia; Yakushev, E. [Joint Institute for Nuclear Research, Dubna, Russia; Bugg, W. [University of Tennessee, Knoxville (UTK); Efremenko, M. [University of Tennessee, Knoxville (UTK); Burritt (et al.), T.H. [University of Washington, Ctr Expt Nucle Phys & Astrophys; Burritt (et al.), T.H. [University of Washington, Dept Phys, Seattle, WA; Busch, M. [Duke University; Esterline, J. [Duke University; Swift, G. [Duke University; Tornow, W. [Duke University/TUNL; Ejiri, H. [Osaka University; Hazama, R. [Osaka University; Nomachi, M. [Osaka University; Shima, T. [Osaka University; Finnerty (et al.), P. [University of North Carolina; et al.

    2011-01-01

    The Majorana Collaboration is assembling an array of HPGe detectors to search for neutrinoless double-beta decay in {sup 76}Ge. Initially, Majorana aims to construct a prototype module to demonstrate the potential of a future 1-tonne experiment. The design and potential reach of this prototype Demonstrator module are presented.

  8. Parabolic aircraft solidification experiments

    Science.gov (United States)

    Workman, Gary L. (Principal Investigator); Smith, Guy A.; OBrien, Susan

    1996-01-01

    A number of solidification experiments have been utilized throughout the Materials Processing in Space Program to provide an experimental environment which minimizes variables in solidification experiments. Two techniques of interest are directional solidification and isothermal casting. Because of the wide-spread use of these experimental techniques in space-based research, several MSAD experiments have been manifested for space flight. In addition to the microstructural analysis for interpretation of the experimental results from previous work with parabolic flights, it has become apparent that a better understanding of the phenomena occurring during solidification can be better understood if direct visualization of the solidification interface were possible. Our university has performed in several experimental studies such as this in recent years. The most recent was in visualizing the effect of convective flow phenomena on the KC-135 and prior to that were several successive contracts to perform directional solidification and isothermal casting experiments on the KC-135. Included in this work was the modification and utilization of the Convective Flow Analyzer (CFA), the Aircraft Isothermal Casting Furnace (ICF), and the Three-Zone Directional Solidification Furnace. These studies have contributed heavily to the mission of the Microgravity Science and Applications' Materials Science Program.

  9. Remote Agent Experiment

    Science.gov (United States)

    Benard, Doug; Dorais, Gregory A.; Gamble, Ed; Kanefsky, Bob; Kurien, James; Millar, William; Muscettola, Nicola; Nayak, Pandu; Rouquette, Nicolas; Rajan, Kanna; Norvig, Peter (Technical Monitor)

    2000-01-01

    Remote Agent (RA) is a model-based, reusable artificial intelligence (At) software system that enables goal-based spacecraft commanding and robust fault recovery. RA was flight validated during an experiment on board of DS1 between May 17th and May 21th, 1999.

  10. The ATRAP experiment

    CERN Multimedia

    Laurent Guiraud

    2000-01-01

    The Antihydrogen Trap (ATRAP) experiment was the first machine to accumulate cold antiprotons, produced in the AD, and combine them with positrons (antielectrons) to form antihydrogen. The study of antihydrogen in comparison with hydrogen will hopefully provide insight into the differences between matter and antimatter, especially in comparing their mass and spectra.

  11. Invisalign: early experiences.

    Science.gov (United States)

    Joffe, L

    2003-12-01

    This article describes the Invisalign technique. It is based on the author's personal experience of over 60 cases started in the private practice setting. The technology behind Invisalign and its development is reviewed. The Invisalign clinical technique is described, and the advantages and disadvantages of using Invisalign are highlighted.

  12. Dismantling the ALEPH experiment

    CERN Multimedia

    Patrice Loïez

    2001-01-01

    The barrel and its two end-caps have been separated and removed from their cables; the detector will be broken into individual parts. ALEPH was an experiment on the LEP accelerator, which studied high-energy collisions between electrons and positrons from 1989 to 2000.

  13. Experiment at Evergreen.

    Science.gov (United States)

    Jones, Richard M.

    The philosophy and structure of programs of coordinated study at Evergreen State College from 1970 to 1980 are discussed, and comparisons are made to the experiment at the University of California, Berkeley, promoted by Joseph Tussman. Both programs are based on ideas suggested by Alexander Meiklejohn and his Experimental College at the University…

  14. Transformations of emotional experience.

    Science.gov (United States)

    de Cortiñas, Lia Pistiner

    2013-06-01

    In this paper the author approaches mental pain and the problems in a psychoanalytic treatment of patients with difficulties in the psychic transformation of their emotional experiences. The author is interested in the symbolic failure related to the obstruction of development of phantasies, dreams, dream-thoughts, etc. She differentiates symbolization disturbances related to hypertrophic projective identification from a detention of these primitive communications and emotional isolation. She puts forward the conjecture that one factor in the arrest of this development is the detention of projective identifications and that, when this primitive means of communication is re-established in a container-contained relationship of mutual benefit, this initiates the development of a symbolization process that can replace the pathological 'protection'. Another hypothesis she develops is that of inaccessible caesuras that, associated with the detention of projective identification, obstruct any integrative or interactive movement. This caesura and the detention of projective identifications affect mental functions needed for dealing with mental pain. The personality is left with precarious mental equipment for transforming emotional experiences. How can a psychoanalytical process stimulate the development of creative symbolization, transforming the emotional experiences and leading towards mental growth? The author approaches the clinical problem with the metaphor of the psychic birth of emotional experience. The modulation of mental pain in a container-contained relationship is a central problem for the development of the human mind. For discovering and giving a meaning to emotional experience, the infant depends on reverie, a function necessary in order to develop an evolved consciousness capable of being aware, which is different from the rudimentary consciousness that perceives but does not understand. The development of mature mental equipment is associated with the

  15. Hydrothermal organic synthesis experiments

    Science.gov (United States)

    Shock, Everett L.

    1992-01-01

    The serious scientific debate about spontaneous generation which raged for centuries reached a climax in the nineteenth century with the work of Spallanzani, Schwann, Tyndall, and Pasteur. These investigators demonstrated that spontaneous generation from dead organic matter does not occur. Although no aspects of these experiments addressed the issue of whether organic compounds could be synthesized abiotically, the impact of the experiments was great enough to cause many investigators to assume that life and its organic compounds were somehow fundamentally different than inorganic compounds. Meanwhile, other nineteenth-century investigators were showing that organic compounds could indeed be synthesized from inorganic compounds. In 1828 Friedrich Wohler synthesized urea in an attempt to form ammonium cyanate by heating a solution containing ammonia and cyanic acid. This experiment is generally recognized to be the first to bridge the artificial gap between organic and inorganic chemistry, but it also showed the usefulness of heat in organic synthesis. Not only does an increase in temperature enhance the rate of urea synthesis, but Walker and Hambly showed that equilibrium between urea and ammonium cyanate was attainable and reversible at 100 C. Wohler's synthesis of urea, and subsequent syntheses of organic compounds from inorganic compounds over the next several decades dealt serious blows to the 'vital force' concept which held that: (1) organic compounds owe their formation to the action of a special force in living organisms; and (2) forces which determine the behavior of inorganic compounds play no part in living systems. Nevertheless, such progress was overshadowed by Pasteur's refutation of spontaneous generation which nearly extinguished experimental investigations into the origins of life for several decades. Vitalism was dealt a deadly blow in the 1950's with Miller's famous spark-discharge experiments which were undertaken in the framework of the Oparin

  16. LCLS The First Experiments

    Energy Technology Data Exchange (ETDEWEB)

    Galayda, John N

    2003-02-10

    The Scientific Advisory Committee (SAC) for the Linac Coherent Light Source (LCLS) has selected six scientific experiments for the early phase of the project. The LCLS, with proposed construction in the 2003-2006 time frame, has been designed to utilize the last third of the existing Stanford Linear Accelerator Center (SLAC) linac. The linac produces a high-current 5-15 GeV electron beam that is bunched into 230 fs slices with a 120 Hz repetition rate. When traveling through a sufficiently long (of order of 100 m) undulator, the electron bunches will lead to self amplification of the emitted x-ray intensity constituting an x-ray free electron laser (XFEL). If funded as proposed, the LCLS will be the first XFEL in the world, operating in the 800-8,000 eV energy range. The emitted coherent x-rays will have unprecedented brightness with 10{sup 12}-10{sup 13} photons/pulse in a 0.2-0.4% energy bandpass and an unprecedented time structure with a design pulse length of 230 fs. Studies are under way to reduce the pulse length to tens of femtoseconds. This document presents descriptions of the early scientific experiments selected by SAC in the spring of 2000. They cover a wide range of scientific fields. The experimental teams consist of many internationally recognized scientists who are excited about the unprecedented x-ray capabilities of LCLS that surely will lead to new scientific frontiers. More generally, this document serves to forward the scientific case for an accelerator-based XFEL source, as requested by the BESAC subpanel on Novel Coherent Light Sources, chaired by Stephen R. Leone. Two general classes of experiments are proposed for the LCLS. The first class consists of experiments where the x-ray beam is used to probe the sample without modifying it, as is done in most experiments at current synchrotron sources. In the second class, the LCLS beam is used to induce non-linear photo-processes or matter in extreme conditions. The same source can be used for

  17. Experiments around I-8

    CERN Multimedia

    1975-01-01

    The lithium transition-radiation detectors and the large liquid argon calorimeters of experiment R806T are shown above and below the intersection at I-8 (Brookhaven-CERN-Saclay-Syracuse-Yale Collaboration, Study of large transverse momentum phenomena by electron and photon detection). At 90 deg to the intersecting beams are the monitoring proporional chambers of experiment R805 (Measurement of real to imaginary ratio of forward scattering amplitude - Coulomb interference - by the CERN-Rome Collaboration). Left and right of the intersection one sees, symmetrically placed around the interaction region, the large scintillation counters hodoscopes used by R801 (Pisa-Stony Brook Collaboration) to measure the pp total cross section and the features of inelastic collisions.

  18. Infrastructures as Ontological Experiments

    Directory of Open Access Journals (Sweden)

    Casper Bruun Jensen

    2015-11-01

    Full Text Available Ontology has recently gained renewed attention in science and technology studies and anthropology (e.g. Gad, Jensen and Winthereik 2015; Holbraad, Pedersen and Viveiros de Castro 2014; Woolgar and Lezaun 2013. Yet, it has a considerably longer pedigree than these recent debates might lead one to think. Experiments, of course, have long held the attention of sociologists, historians, and philosophers of science (Collins 1985; Gooding 1990; Shapin and Schaffer 1985. And infrastructures have been the focus of sustained inquiry in the sociology and history of technology (Bowker 1994; Hughes 1983. Once these terms are put into conjunction, however, each gets a somewhat different inflection. The following note briefly explores the conceptual purchase of considering infrastructures as ontological experiments.

  19. Quantum Gravity Experiments

    Directory of Open Access Journals (Sweden)

    Cahill R. T.

    2015-10-01

    Full Text Available A new quantum gravity experiment is reported with the data confirming the generali- sation of the Schrödinger equation to include the interaction of the wave function with dynamical space. Dynamical space turbulence, via this interaction process, raises and lowers the energy of the electron wave function, which is detected by observing conse- quent variations in the electron quantum barrier tunnelling rate in reverse-biased Zener diodes. This process has previously been reported and enabled the measurement of the speed of the dynamical space flow, which is consistent with numerous other detection experiments. The interaction process is dependent on the angle between the dynamical space flow velocity and the direction of the electron flow in the diode, and this depen- dence is experimentally demonstrated. This interaction process explains gravity as an emergent quantum process, so unifying quantum phenomena and gravity. Gravitational waves are easily detected.

  20. The ATLAS experiment

    CERN Document Server

    Dunford, Monica Lynn

    2014-01-01

    In particle physics experiments, the discovery of increasingly more massive particles has brought deep understanding of the basic constituents of matter and of the fundamental forces among them. In order to explore Nature in its deepest elementary secrets, the Large Hadron Collider (LHC) was built at CERN, Geneva. The LHC provides the highest energy collisions in a laboratory, at very high rates to allow one to study very rare reactions. Two independent sophisticated huge instruments, called ATLAS and CMS detectors, are operated to explore in a most broad way the physics of these collisions. In addition to these two general-purpose detectors, smaller specialized experiments (LHCb, ALICE and some others) are collecting collision data as well.

  1. The Digital Archive Experience

    DEFF Research Database (Denmark)

    2009-01-01

    This article, as well as the book, investigates the ways in which new digital media may enhance the experience of the art-archive. Taken as a whole, the new media is a vital component of a 'transdisciplinary' and transformative field, a cultural landscape that is changing rapidly the conditions...... on paper but seldom succeeds in reality. Such websites often ignore the physical and social experience of a museum visit. Curiously, when they are most successful, websites often compete with the actual museum, possibly reducing the number of visitors and diluting the effect of seeing art first hand....... The book discusses the challenges of the archive and the (art)museum in the age of digital media. It is based upon documentation from a research project, MAP - Media Art Platform, that drew upon the talents and collaboration of many institutions, artists, programmers, art historians, designers and others...

  2. Shooting Star Experiment

    Science.gov (United States)

    1997-01-01

    The Shooting Star Experiment (SSE) is designed to develop and demonstrate the technology required to focus the sun's energy and use the energy for inexpensive space Propulsion Research. Pictured is an engineering model (Pathfinder III) of the Shooting Star Experiment (SSE). This model was used to test and characterize the motion and deformation of the structure caused by thermal effects. In this photograph, alignment targets are being placed on the engineering model so that a theodolite (alignment telescope) could be used to accurately measure the deformation and deflections of the engineering model under extreme conditions, such as the coldness of deep space and the hotness of the sun as well as vacuum. This thermal vacuum test was performed at the X-Ray Calibration Facility because of the size of the test article and the capabilities of the facility to simulate in-orbit conditions

  3. Future flavour physics experiments

    Science.gov (United States)

    2015-01-01

    The current status of flavour physics and the prospects for present and future experiments will be reviewed. Measurements in B‐physics, in which sensitive probes of new physics are the CKM angle γ, the Bs mixing phase ϕs, and the branching ratios of the rare decays B(s)0→μ+μ− , will be highlighted. Topics in charm and kaon physics, in which the measurements of ACP and the branching ratios of the rare decays K→πνν¯ are key measurements, will be discussed. Finally the complementarity of the future heavy flavour experiments, the LHCb upgrade and Belle‐II, will be summarised. PMID:26877543

  4. Gross decontamination experiment report

    Energy Technology Data Exchange (ETDEWEB)

    Mason, R.; Kinney, K.; Dettorre, J.; Gilbert, V.

    1983-07-01

    A Gross Decontamination Experiment was conducted on various levels and surfaces of the TMI - Unit 2 reactor building in March 1982. The polar crane, D-rings, missile shields, refueling canals, refueling bridges, equipment, and elevations 305' and 347'-6'' were flushed with low pressure water. Additionally, floor surfaces on elevation 305' and floor surfaces and major pieces of equipment on elevation 347'-6'' were sprayed with high pressure water. Selective surfaces were decontaminated with a mechanical scrubber and chemicals. Strippable coating was tested and evaluated on equipment and floor surfaces. The effectiveness, efficiency, and safety of several decontamination techniques were established for the large, complex decontamination effort. Various decontamination equipment was evaluated and its effectiveness was documented. Decontamination training and procedures were documented and evaluated, as were the support system and organization for the experiment.

  5. The COMPASS experiment

    CERN Multimedia

    2006-01-01

    Artistic view of the 60 m long Common Muon and Proton Apparatus for Structure and Spectroscopy (COMPASS) experiment. COMPASS takes beams from the SPS accelerator at CERN. This beam enters from the lower left and passes through the cylindrical target solenoid. COMPASS is used to study the internal structure of hadrons (composite particles interacting via the strong force) by looking at a property called spin and a phenomenon known as glueballs.

  6. The ACE experiment

    CERN Multimedia

    Maximilien Brice

    2006-01-01

    The Antiproton Cell Experiment (ACE) as shown by Michael Holzscheiter (spokesperson), Niels Bassler (co-spokesperson) and Helge Knudsen. ACE is located on the Antiproton Decelerator (AD) at CERN. An antiproton annihilates a proton in the nucleus of a cancer cell, producing a pair of gamma rays, destroying the entire cell and some surrounding cells. Many fewer antiprotons are required in this treatment than in the equivalent proton hadron therapy, so there is less risk of healthy tissue damage.

  7. TEAM Experience in Astronomy

    Science.gov (United States)

    McGruder, C. H., III; Tyson, N.; Williams, B.; Hackney, K.; Hackney, R.; Rudloff, M.; Scott, R.; Tyler, R.

    1996-05-01

    The purpose of the project was to increase minority interest and appreciation of science using astronomy as a tool. This goal was achieved by inviting high school minority students and their teachers to the campus of Western Kentucky University to participate along with minority role models in team based learning experiences. All participants worked together in many hands-on activities and events centered around the exploration of space.

  8. The CONNIE experiment

    CERN Document Server

    Aguilar-Arevalo, A; Bonifazi, C; Butner, M; Cancelo, G; Vazquez, A Castaneda; Vergara, B Cervantes; Chavez, C R; Da Motta, H; D'Olivo, J C; Anjos, J Dos; Estrada, J; Moroni, G Fernandez; Ford, R; Foguel, A; Torres, K P Hernandez; Izraelevitch, F; Kavner, A; Kilminster, B; Kuk, K; Lima, H P; Makler, M; Molina, J; Moreno-Granados, G; Moro, J M; Paolini, E E; Haro, M Sofo; Tiffenberg, J; Trillaud, F; Wagner, S

    2016-01-01

    The CONNIE experiment uses fully depleted, high resistivity CCDs as particle detectors in an attempt to measure for the first time the Coherent Neutrino-Nucleus Elastic Scattering of antineutrinos from a nuclear reactor with silicon nuclei.This talk, given at the XV Mexican Workshop on Particles and Fields (MWPF), discussed the potential of CONNIE to perform this measurement, the installation progress at the Angra dos Reis nuclear power plant, as well as the plans for future upgrades.

  9. The CONNIE experiment

    Energy Technology Data Exchange (ETDEWEB)

    Aguilar-Arevalo, A.; et al.

    2016-10-19

    The CONNIE experiment uses fully depleted, high resistivity CCDs as particle detectors in an attempt to measure for the first time the Coherent Neutrino-Nucleus Elastic Scattering of antineutrinos from a nuclear reactor with silicon nuclei.This talk, given at the XV Mexican Workshop on Particles and Fields (MWPF), discussed the potential of CONNIE to perform this measurement, the installation progress at the Angra dos Reis nuclear power plant, as well as the plans for future upgrades.

  10. Understanding Popper's Experiment

    CERN Document Server

    Qureshi, T

    2004-01-01

    An experiment, proposed by Karl Popper, is considered by many, to be a crucial test of quantum mechanics. While many loop holes have been pointed out in the original proposal, it turned out that they are not crucial to the test. We point out what is fundamentally wrong with the proposal. Using just the standard interpretation of quantum mechanics, we demonstrate that Popper's basic premise was faulty.

  11. Delivering ideal employee experiences.

    Science.gov (United States)

    Weiss, Marjorie D; Tyink, Steve; Kubiak, Curt

    2009-05-01

    Employee-centric strategies have moved from employee satisfaction and brand awareness to employee "affinity" or "attachment." In today's marketplace, occupational health nurses understand that differentiation (i.e., the perception of uniqueness) is the direct result of superior employee interactions, which lead to better employee care, enduring employee relationships, loyal employees, and satisfied employers. What drives employees to occupational health nurse attachment? The answer is a passion for rising above the competition to create ideal employee experiences.

  12. STELLA Experiment - Microbunch Diagnostic

    Energy Technology Data Exchange (ETDEWEB)

    He, P.; Liu, Y.; Cline, D. B.; Babzien, M.; Gallardo, J. C.; Kusche, K. P.; Pogorelsky, I. V.; Skaritka, J.; van Steenbergen, A.; Yakimenko, V.; Kimura, W. D.

    1998-07-01

    A microbunch diagnostic system is built at the Accelerator Test Facility (ATF) of Brookhaven National Laboratory for monitoring microbunches (10-fs bunch length) produced by the Inverse Free Electron Laser accelerator in Staged Electron Laser Acceleration experiment. It is similar to one already demonstrated at the ATF. With greatly improved beam optics conditions higher order harmonic coherent transition radiation will be measurable to determine the microbunch length and shape.

  13. "We work on experiments"

    CERN Multimedia

    BBC

    1975-01-01

    Short BBC (?) report on CERN. Emphasis on international collaboration, with Soviets and Chinese highlighted. At end, interview with Danish physicist (our of sync) who talks about working on Sundays and how experiments have 25 people, therefore it is a long way to glory. ISR. Comments: Film scratched and dirty. Colour pink. Looses sync at the end. Video transfer ends before the end of the film.

  14. Creating Sustainable Digital Experiences

    Directory of Open Access Journals (Sweden)

    Kozinets Robert V.

    2014-11-01

    Full Text Available Is the social media hype about being cool or about making money? For Adam Froman, the answer is easy: Marketers need to be very clear about how social media activity supports overall business strategy. Only if the digital experience fi ts into the whole customer journey will consumers become engaged and add value to the company … and only then will the social brand become cool.

  15. The CONNIE experiment

    Science.gov (United States)

    Aguilar-Arevalo, A.; Bertou, X.; Bonifazi, C.; Butner, M.; Cancelo, G.; Castaneda Vazquez, A.; Cervantes Vergara, B.; Chavez, C. R.; Da Motta, H.; D'Olivo, J. C.; Dos Anjos, J.; Estrada, J.; Fernandez Moroni, G.; Ford, R.; Foguel, A.; Hernandez Torres, K. P.; Izraelevitch, F.; Kavner, A.; Kilminster, B.; Kuk, K.; Lima, H. P., Jr.; Makler, M.; Molina, J.; Moreno-Granados, G.; Moro, J. M.; Paolini, E. E.; Sofo Haro, M.; Tiffenberg, J.; Trillaud, F.; Wagner, S.

    2016-10-01

    The CONNIE experiment uses fully depleted, high resistivity CCDs as particle detectors in an attempt to measure for the first time the Coherent Neutrino-Nucleus Elastic Scattering of antineutrinos from a nuclear reactor with silicon nuclei. This talk, given at the XV Mexican Workshop on Particles and Fields (MWPF), discussed the potential of CONNIE to perform this measurement, the installation progress at the Angra dos Reis nuclear power plant, as well as the plans for future upgrades.

  16. [GIST: our experience].

    Science.gov (United States)

    Rossi, M T; Fasano, G; Morlino, A; Scutari, F

    2009-01-01

    Gastrointestinal stromal tumors (GIST) are generally found in the stomach or small intestine and less commonly in the colon and rectum. Complete surgical remove remains the best current therapy. In the treatment of advanced/metastatic GIST is available imatinib, a selective tyrosine kinase inhibitor. In our experience, 12 patients observed between 2000 and 2007 and affected by GIST underwent surgery, in one case associated to treatment with imatinib.

  17. Experiments with Electrodynamic Wheels

    Science.gov (United States)

    Gaul, Nathan; Corey, Daniel; Cordrey, Vincent; Majewski, Walerian

    2015-04-01

    Our experiments were involving inductive magnetic levitation. A Halbach array is a system in which a series of magnets is arranged in a manner such that the magnetic field is cancelled on one side of the array while strengthening the field on the other. We constructed two circular Halbach wheels, making the strong magnetic field on the outer rim of the ring. Such system is usually dubbed as an Electrodynamic Wheel (EDW). Rotating this wheel around a horizontal axis above a flat conducting surface should induce eddy currents in said surface through the variable magnetic flux. The eddy currents produce, in turn, their own magnetic fields which interact with the magnets of the EDW. We demonstrated that these interactions produce both drag and lift forces on the EDW which can theoretically be used for lift and propulsion of the EDW. The focus of our experiments is determining how to maximize the lift-to-drag ratio by the proper choice of the induction element. We will also describe our experiments with a rotating circular Halbach array having the strong magnetic field of about 1 T on the flat side of the ring, and acting as a hovercraft.

  18. The Experience of Depression

    Directory of Open Access Journals (Sweden)

    Katharina Weitkamp

    2016-05-01

    Full Text Available There is a lack of research in health psychology on the subjective experience of adolescents with mental health disorders. The aim of this study was to explore the experience of depression and the journey into therapy of young people (YP diagnosed with depression. Semi-structured interviews were carried out with six YP (5 female, aged 15–19. Interviews were analyzed using Interpretative Phenomenological Analysis. The following four key themes were identified: “Suffering is experienced as overwhelming,” “An experience of loneliness and isolation,” “Struggling to understand the suffering,” and “Therapy as a last resort.” Reasons for a delay in accessing treatment were not knowing what is “normal,” the feeling that they have to deal with it by themselves, and/or the lack of a caring adult who supports the YP in getting help. The findings suggest the ongoing importance of reducing stigma and promoting mental health education for YP as well as parents, school staff, and health professionals.

  19. Hyperon Beam Experiment

    CERN Multimedia

    2002-01-01

    The experiment WA89 uses the upgraded Omega facility together with a hyperon beam installed at the end of the H1 beamline. The beam can deliver 2~10$ ^{5} \\% Sigma ^- $ per machine burst at 330 GeV/c with a background of 5 10$ ^{5} \\% \\pi ^- $. \\\\ \\\\ The goals of the experiment are: observation of charmed particles, mainly the charmed-strange baryons and measurements of their production in the kinematical range x$ _{F} $~$>$~0.2, and their decay properties, a search for exotic states such as U(3100) observed in the previous CERN hyperon beam experiment WA62, measurements of hyperon polarization and production properties. \\\\ \\\\ A vertex detector consisting of 24 silicon microstrip planes with 25~$\\mu$m pitch and 6~planes with 50~$\\mu$m pitch provides track measurements of sufficient accuracy to identify the decays of short living charmed particles and measure their lifetimes. A RICH detector provides good $\\pi$/K separation for momenta up to 100~GeV/c and $\\pi$/p separation up to 150~GeV/c. Photons are detecte...

  20. The OLYMPUS Experiment

    CERN Document Server

    Milner, R; Kohl, M; Schneekloth, U; Akopov, N; Alarcon, R; Andreev, V A; Ates, O; Avetisyan, A; Bayadilov, D; Beck, R; Belostotski, S; Bernauer, J C; Bessuille, J; Brinker, F; Buck, B; Calarco, J R; Carassiti, V; Cisbani, E; Ciullo, G; Contalbrigo, M; D'Ascenzo, N; De Leo, R; Diefenbach, J; Donnelly, T W; Dow, K; Elbakian, G; Eversheim, D; Frullani, S; Funke, Ch; Gavrilov, G; Gläser, B; Görrissen, N; Hauschildt, J; Henderson, B S; Hoffmeister, Ph; Holler, Y; Ice, L D; Izotov, A; Kaiser, R; Karyan, G; Kelsey, J; Khaneft, D; Klassen, P; Kiselev, A; Krivshich, A; Lehmann, I; Lenisa, P; Lenz, D; Lumsden, S; Ma, Y; Maas, F; Marukyan, H; Miklukho, O; Movsisyan, A; Murray, M; Naryshkin, Y; O'Connor, C; Benito, R Perez; Perrino, R; Redwine, R P; Piñeiro, D Rodríguez; Rosner, G; Russell, R L; Schmidt, A; Seitz, B; Statera, M; Thiel, A; Vardanyan, H; Veretennikov, D; Vidal, C; Winnebeck, A; Yeganov, V

    2014-01-01

    The OLYMPUS experiment was designed to measure the ratio between the positron-proton and electron-proton elastic scattering cross sections, with the goal of determining the contribution of two-photon exchange to the elastic cross section. Two-photon exchange might resolve the discrepancy between measurements of the proton form factor ratio, $\\mu_p G^p_E/G^p_M$, made using polarization techniques and those made in unpolarized experiments. OLYMPUS operated on the DORIS storage ring at DESY, alternating between 2.01~GeV electron and positron beams incident on an internal hydrogen gas target. The experiment used a toroidal magnetic spectrometer instrumented with drift chambers and time-of-flight detectors to measure rates for elastic scattering over the polar angular range of approximately $25^\\circ$--$75^\\circ$. Symmetric M{\\o}ller/Bhabha calorimeters at $1.29^\\circ$ and telescopes of GEM and MWPC detectors at $12^\\circ$ served as luminosity monitors. A total luminosity of approximately 4.5~fb$^{-1}$ was collect...

  1. Long Baseline Neutrino Experiments

    Science.gov (United States)

    Mezzetto, Mauro

    2016-05-01

    Following the discovery of neutrino oscillations by the Super-Kamiokande collaboration, recently awarded with the Nobel Prize, two generations of long baseline experiments had been setup to further study neutrino oscillations. The first generation experiments, K2K in Japan, Minos in the States and Opera in Europe, focused in confirming the Super-Kamiokande result, improving the precision with which oscillation parameters had been measured and demonstrating the ντ appearance process. Second generation experiments, T2K in Japan and very recently NOνA in the States, went further, being optimized to look for genuine three neutrino phenomena like non-zero values of θ13 and first glimpses to leptonic CP violation (LCPV) and neutrino mass ordering (NMO). The discovery of leptonic CP violation will require third generation setups, at the moment two strong proposals are ongoing, Dune in the States and Hyper-Kamiokande in Japan. This review will focus a little more in these future initiatives.

  2. Sequential Design of Experiments

    Energy Technology Data Exchange (ETDEWEB)

    Anderson-Cook, Christine Michaela [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-06-30

    A sequential design of experiments strategy is being developed and implemented that allows for adaptive learning based on incoming results as the experiment is being run. The plan is to incorporate these strategies for the NCCC and TCM experimental campaigns to be run in the coming months. This strategy for experimentation has the advantages of allowing new data collected during the experiment to inform future experimental runs based on their projected utility for a particular goal. For example, the current effort for the MEA capture system at NCCC plans to focus on maximally improving the quality of prediction of CO2 capture efficiency as measured by the width of the confidence interval for the underlying response surface that is modeled as a function of 1) Flue Gas Flowrate [1000-3000] kg/hr; 2) CO2 weight fraction [0.125-0.175]; 3) Lean solvent loading [0.1-0.3], and; 4) Lean solvent flowrate [3000-12000] kg/hr.

  3. Supporting planning and conducting experiments

    NARCIS (Netherlands)

    Riesen, van Siswa A.N.; Gijlers, Hannie; Anjewierden, Anjo; Jong, de Ton

    2016-01-01

    In inquiry learning learners design and conduct experiments. Learners experience difficulties with the involved processes and need guidance to design useful experiments. To guide students in this we created a configurable experiment design tool that is usable in multiple domains. The tool was tested

  4. AGS Experiments: 1989, 1990, 1991

    Energy Technology Data Exchange (ETDEWEB)

    Depken, J.C.

    1992-02-01

    This report contains: Experimental areas layout; table of beam parameters and fluxes; experiment schedule ``as run``; proposed 1992 schedule; a listing of experiments by number; two-page summaries of each experiment begin here, also ordered by number; publications of AGS Experiments begin here; and list of AGS Experimenters begins here.

  5. AGS Experiments: 1989, 1990, 1991

    Energy Technology Data Exchange (ETDEWEB)

    Depken, J.C.

    1992-02-01

    This report contains: Experimental areas layout; table of beam parameters and fluxes; experiment schedule as run''; proposed 1992 schedule; a listing of experiments by number; two-page summaries of each experiment begin here, also ordered by number; publications of AGS Experiments begin here; and list of AGS Experimenters begins here.

  6. Supporting planning and conducting experiments

    NARCIS (Netherlands)

    van Riesen, Siswa; Gijlers, Aaltje H.; Anjewierden, Anjo Allert; de Jong, Anthonius J.M.; Looi, Chee-Kit; Polman, Joseph; Cress, Ulrike; Reimann, Peter

    2016-01-01

    In inquiry learning learners design and conduct experiments. Learners experience difficulties with the involved processes and need guidance to design useful experiments. To guide students in this we created a configurable experiment design tool that is usable in multiple domains. The tool was tested

  7. 2169 steel waveform experiments.

    Energy Technology Data Exchange (ETDEWEB)

    Furnish, Michael David; Alexander, C. Scott; Reinhart, William Dodd; Brown, Justin L.

    2012-11-01

    In support of LLNL efforts to develop multiscale models of a variety of materials, we have performed a set of eight gas gun impact experiments on 2169 steel (21% Cr, 6% Ni, 9% Mn, balance predominantly Fe). These experiments provided carefully controlled shock, reshock and release velocimetry data, with initial shock stresses ranging from 10 to 50 GPa (particle velocities from 0.25 to 1.05 km/s). Both windowed and free-surface measurements were included in this experiment set to increase the utility of the data set, as were samples ranging in thickness from 1 to 5 mm. Target physical phenomena included the elastic/plastic transition (Hugoniot elastic limit), the Hugoniot, any phase transition phenomena, and the release path (windowed and free-surface). The Hugoniot was found to be nearly linear, with no indications of the Fe phase transition. Releases were non-hysteretic, and relatively consistent between 3- and 5-mmthick samples (the 3 mm samples giving slightly lower wavespeeds on release). Reshock tests with explosively welded impactors produced clean results; those with glue bonds showed transient releases prior to the arrival of the reshock, reducing their usefulness for deriving strength information. The free-surface samples, which were steps on a single piece of steel, showed lower wavespeeds for thin (1 mm) samples than for thicker (2 or 4 mm) samples. A configuration used for the last three shots allows release information to be determined from these free surface samples. The sample strength appears to increase with stress from ~1 GPa to ~ 3 GPa over this range, consistent with other recent work but about 40% above the Steinberg model.

  8. Experience the Moon

    Science.gov (United States)

    Ortiz-Gil, A.; Benacchio, L.; Boccato, C.

    2011-10-01

    The Moon is, together with the Sun, the very first astronomical object that we experience in our life. As this is an exclusively visual experience, people with visual impairments need a different mode to experience it too. This statement is especially true when events, such as more and more frequent public observations of sky, take place. This is the reason why we are preparing a special package for visual impaired people containing three brand new items: 1. a tactile 3D Moon sphere in Braille with its paper key in Braille. To produce it we used imaging data obtained by NASA's mission Clementine, along with free image processing and 3D rendering software. In order to build the 3D small scale model funding by Europlanet and the Italian Ministry for Research have been used. 2. a multilingual web site for visually impaired users of all ages, on basic astronomy together with an indepth box about the Moon; 3. a book in Braille with the same content of the Web site mentioned above. All the items will be developed with the collaboration of visually impaired people that will check each step of the project and support their comments and criticism to improve it. We are going to test this package during the next International Observe the Moon Night event. After a first testing phase we'll collect all the feedback data in order to give an effective form to the package. Finally the Moon package could be delivered to all those who will demand it for outreach or educational goals.

  9. Situating Emotional Experience

    Directory of Open Access Journals (Sweden)

    Christine D Wilson-Mendenhall

    2013-11-01

    Full Text Available Psychological construction approaches to emotion suggest that emotional experience is situated and dynamic. Fear, for example, is typically studied in a physical danger context (e.g., threatening snake, but in the real world, it often occurs in social contexts, especially those involving social evaluation (e.g., public speaking. Understanding situated emotional experience is critical because adaptive responding is guided by situational context (e.g., inferring the intention of another in a social evaluation situation vs. monitoring the environment in a physical danger situation. In an fMRI study, we assessed situated emotional experience using a newly developed paradigm in which participants vividly imagine different scenarios from a first-person perspective, in this case scenarios involving either social evaluation or physical danger. We hypothesized that distributed neural patterns would underlie immersion in social evaluation and physical danger situations, with shared activity patterns across both situations in multimodal sensory regions and in circuitry involved in integrating salient sensory information, and with unique activity patterns for each situation type in coordinated large-scale networks that reflect situated responding. More specifically, we predicted that networks underlying the social inference and mentalizing involved in responding to a social threat (in regions that make up the default mode network would be reliably more active during social evaluation situations. In contrast, networks underlying the visuospatial attention and action planning involved in responding to a physical threat would be reliably more active during physical danger situations. The results supported these hypotheses. In line with emerging psychological construction approaches, the findings suggest that coordinated brain networks offer a systematic way to interpret the distributed patterns that underlie the diverse situational contexts characterizing

  10. Copenhagen Sonic Experience Map

    DEFF Research Database (Denmark)

    Kreutzfeldt, Jacob

    2011-01-01

    of assessment and management of environmental noise brings forth the disturbing and potentially damaging effect of environmental sound.1 But as maps of coloured streets start to circulate, and real estate prices drop in designated blue and red areas,2 it is worth remembering that sound itself is not a killer....... The challenge for planners, designers, and architects is to deal with the auditory not only as pollution but also as an integrated part of urban experience, promoting fellowship and liveliness as well as distress....

  11. Results of railgun experiments

    Energy Technology Data Exchange (ETDEWEB)

    Hawke, R.S.; Brooks, A.L.; Fowler, C.M.; Peterson, D.R.

    1983-04-01

    During the 1979 Megagauss II conference the hypervelocity potential of railguns and the pulsed power technology needed to power them were discussed. Since then, many laboratories have initiated railgun R and D projects for a variety of potential applications. Los Alamos and Lawrence Livermore National Laboratories initiated a collaborative experimental railgun project which resulted in several successes in accelerating projectiles to high velocities, emphasized the limits on railgun operation, and indicated that the numerical modeling of railgun operation was in good agreement with the experiments.

  12. The Baikal neutrino experiment

    Energy Technology Data Exchange (ETDEWEB)

    Avrorin, A. [Institute for Nuclear Research, 60th October Anniversary pr. 7a, Moscow 117312 (Russian Federation); Aynutdinov, V., E-mail: aynutdin@yandex.r [Institute for Nuclear Research, 60th October Anniversary pr. 7a, Moscow 117312 (Russian Federation); Balkanov, V. [Institute for Nuclear Research, 60th October Anniversary pr. 7a, Moscow 117312 (Russian Federation); Belolaptikov, I. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Berezhnev, S. [Skobeltsyn Institute of Nuclear Physics MSU, Moscow (Russian Federation); Bogorodsky, D.; Budnev, N. [Irkutsk State University, Irkutsk (Russian Federation); Danilchenko, I.; Domogatsky, G.; Doroshenko, A. [Institute for Nuclear Research, 60th October Anniversary pr. 7a, Moscow 117312 (Russian Federation); Dyachok, A. [Irkutsk State University, Irkutsk (Russian Federation); Dzhilkibaev, Zh. [Institute for Nuclear Research, 60th October Anniversary pr. 7a, Moscow 117312 (Russian Federation); Ermakov, G. [Skobeltsyn Institute of Nuclear Physics MSU, Moscow (Russian Federation); Fialkovsky, S. [Nizhni Novgorod State Technical University, Nizhni Novgorod (Russian Federation); Gaponenko, O. [Institute for Nuclear Research, 60th October Anniversary pr. 7a, Moscow 117312 (Russian Federation); Golubkov, K. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Gres' , O.; Gres' , T. [Irkutsk State University, Irkutsk (Russian Federation); Grishin, N. [Skobeltsyn Institute of Nuclear Physics MSU, Moscow (Russian Federation); Grishin, O. [Irkutsk State University, Irkutsk (Russian Federation)

    2011-01-21

    We review the status of the Lake Baikal Neutrino Experiment. Preparation towards a km{sup 3}-scale Gigaton Volume Detector (GVD) in Lake Baikal is currently a central activity. As an important milestone, a km{sup 3}-prototype string comprising of 12 optical modules and based on a completely new technology, has been installed and was put in operation together with NT200+ in April, 2009. We also present recent results from the long-term operation of NT200, including an improved limit on the diffuse astrophysical neutrino flux.

  13. Magnetohydrodynamic Augmented Propulsion Experiment

    Science.gov (United States)

    Litchford, Ron J.; Cole, John; Lineberry, John; Chapman, Jim; Schmidt, Harold; Cook, Stephen (Technical Monitor)

    2002-01-01

    A fundamental obstacle to routine space access is the specific energy limitations associated with chemical fuels. In the case of vertical take-off, the high thrust needed for vertical liftoff and acceleration to orbit translates into power levels in the 10 GW range. Furthermore, useful payload mass fractions are possible only if the exhaust particle energy (i.e., exhaust velocity) is much greater than that available with traditional chemical propulsion. The electronic binding energy released by the best chemical reactions (e.g., LOX/LH2 for example, is less than 2 eV per product molecule (approx. 1.8 eV per H2O molecule), which translates into particle velocities less than 5 km/s. Useful payload fractions, however, will require exhaust velocities exceeding 15 km/s (i.e., particle energies greater than 20 eV). As an added challenge, the envisioned hypothetical RLV (reusable launch vehicle) should accomplish these amazing performance feats while providing relatively low acceleration levels to orbit (2-3g maximum). From such fundamental considerations, it is painfully obvious that planned and current RLV solutions based on chemical fuels alone represent only a temporary solution and can only result in minor gains, at best. What is truly needed is a revolutionary approach that will dramatically reduce the amount of fuel and size of the launch vehicle. This implies the need for new compact high-power energy sources as well as advanced accelerator technologies for increasing engine exhaust velocity. Electromagnetic acceleration techniques are of immense interest since they can be used to circumvent the thermal limits associated with conventional propulsion systems. This paper describes the Magnetohydrodynamic Augmented Propulsion Experiment (MAPX) being undertaken at NASA Marshall Space Flight Center (MSFC). In this experiment, a 1-MW arc heater is being used as a feeder for a 1-MW magnetohydrodynamic (MHD) accelerator. The purpose of the experiment is to demonstrate

  14. Experiments with twisted light

    Science.gov (United States)

    Courtial, J.; O'Holleran, K.

    2007-06-01

    The generic that is, stable under perturbations nodes of the field in a monochromatic light beam are optical vortices. We describe here their connection to Chladni's nodal lines in the oscillations of metal plates, as well as a few experiments that have been performed with optical vortices. We will describe how optical vortices can be generated experimentally; how it can be shown that they possess orbital angular momentum; how individual photons can be sorted according to their vortex state; and how optical vortices can be used to demonstrate higher-dimensional quantum entanglement.

  15. Experience City.DK

    DEFF Research Database (Denmark)

    Marling, Gitte; Kiib, Hans; Jensen, Ole B.

    I de seneste 20 år er der foretaget meget store investeringer i kulturhuse, museer og koncertsale. Mange nye spillesteder og "performancehuse" er dukket op, og som noget nyt sker der en samlokalisering af forskellige kunstarter med cafemiljøer, uddannelsesmiljøer, bibliotekter og virksomheder med...... bydele omtales som "oplevelsesbyen". Den kulturelle podning stiller krav til de fysiske omgivelser, til arkitekturen og til design af byrum. Experience City.DK undersøger betingelser for og konsekvenser af nye hybride kulturprojekter og performative byrum i danske byer....

  16. The QUIJOTE CMB Experiment

    Science.gov (United States)

    Rubiño-Martín, J. A.; Rebolo, R.; Tucci, M.; Génova-Santos, R.; Hildebrandt, S. R.; Hoyland, R.; Herreros, J. M.; Gómez-Reñasco, F.; Caraballo, C. López; Martínez-González, E.; Vielva, P.; Herranz, D.; Casas, F. J.; Artal, E.; Aja, B.; Fuente, L. dela; Cano, J. L.; Villa, E.; Mediavilla, A.; Pascual, J. P.; Piccirillo, L.; Maffei, B.; Pisano, G.; Watson, R. A.; Davis, R.; Davies, R.; Battye, R.; Saunders, R.; Grainge, K.; Scott, P.; Hobson, M.; Lasenby, A.; Murga, G.; Gómez, C.; Gómez, A.; Ariño, J.; Sanquirce, R.; Pan, J.; Vizcargüenaga, A.; Etxeita, B.

    We present the current status of the QUIJOTE (Q-U-I JOint TEnerife) CMB Experiment, a new instrument which will start operations early in 2009 at Teide Observatory with the aim of characterizing the polarization of the CMB and other processes of galactic and extragalactic emission in the frequency range 10-30GHz and at large angular scales. QUIJOTE will be a valuable complement at low frequencies for the PLANCK mission, and will have the required sensitivity to detect a primordial gravitational-wave component if the tensor-to-scalar ratio is larger than r = 0.05.

  17. The Quijote CMB Experiment

    CERN Document Server

    Rubiño-Martín, J A; Tucci, M; Genova-Santos, R; Hildebrandt, S R; Hoyland, R; Herreros, J M; Gomez-Renasco, F; Caraballo, C Lopez; Martínez-González, E; Vielva, P; Herranz, D; Casas, F J; Artal, E; Aja, B; de la Fuente, L; Cano, J L; Villa, E; Mediavilla, A; Pascual, J P; Piccirillo, L; Maffei, B; Pisano, G; Watson, R A; Davis, R; Davies, R; Battye, R; Saunders, R; Grainge, K; Scott, P; Hobson, M; Lasenby, A; Murga, G; Gómez, C; Gómez, A; Arino, J; Sanquirce, R; Pan, J; Vizcarguenaga, A; Etxeita, B

    2008-01-01

    We present the current status of the QUIJOTE (Q-U-I JOint TEnerife) CMB Experiment, a new instrument which will start operations early 2009 at Teide Observatory, with the aim of characterizing the polarization of the CMB and other processes of galactic and extragalactic emission in the frequency range 10-30 GHz and at large angular scales. QUIJOTE will be a valuable complement at low frequencies for the PLANCK mission, and will have the required sensitivity to detect a primordial gravitational-wave component if the tensor-to-scalar ratio is larger than r=0.05.

  18. Lungmen: building on experience

    Energy Technology Data Exchange (ETDEWEB)

    Hucik, S.; Redding, John [GE Nuclear Energy, San Jose (United States)

    1999-08-01

    Despite a fall in the number of nuclear power plants under construction, the construction technology continues to improve and the new plants now being built in Asia are dramatically cutting lead times. These Asian projects are becoming the benchmark for what can be achieved in the construction of new nuclear plant. The article focuses on the Lungmen Advanced Boiling Water Reactor now under construction in Taiwan. Excavation started in early 1998 and commercial operation is expected in spring 2004. Lungmen's approach to construction of the plant was based on its experience in Japan: the approach is described.

  19. Maryland Centrifugal Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Hassam, Adil; Ellis, Richard F

    2016-12-22

    The Maryland Centrifugal Experiment (MCX) Project has investigated the concepts of centrifugal plasma confinement and stabilization of instabilities by velocity shear. The basic requirement is supersonic plasma rotation about a shaped, open magnetic field. Overall, the MCX Project attained three primary goals that were set out at the start of the project. First, supersonic rotation at Mach number upto 2.5 was obtained. Second, turbulence from flute interchange modes was found considerably reduced from conventional. Third, plasma pressure was contained along the field, as evidenced by density drops of x10 from the center to the mirror throats.

  20. Quantum frequency downconversion experiment

    CERN Document Server

    Takesue, Hiroki

    2010-01-01

    We report the first quantum frequency downconversion experiment. Using the difference frequency generation process in a periodically poled lithium niobate waveguide, we successfully observed the phase-preserved frequency downconversion of a coherent pulse train with an average photon number per pulse of $<$1, from the 0.7-$\\mu$m visible wavelength band to the 1.3-$\\mu$m telecom band. We expect this technology to become an important tool for flexible photonic quantum networking, including the realization of quantum repeater systems over optical fiber using atom-photon entanglement sources for the visible wavelength bands.

  1. Geophysical fluid flow experiment

    Science.gov (United States)

    Broome, B. G.; Fichtl, G.; Fowlis, W.

    1979-01-01

    The essential fluid flow processes associated with the solar and Jovian atmospheres will be examined in a laboratory experiment scheduled for performance on Spacelab Missions One and Three. The experimental instrumentation required to generate and to record convective fluid flow is described. Details of the optical system configuration, the lens design, and the optical coatings are described. Measurement of thermal gradient fields by schlieren techniques and measurement of fluid flow velocity fields by photochromic dye tracers is achieved with a common optical system which utilizes photographic film for data recording. Generation of the photochromic dye tracers is described, and data annotation of experimental parameters on the film record is discussed.

  2. Soil mechanics experiment

    Science.gov (United States)

    Mitchell, J. K.; Bromwell, L. G.; Carrier, W. D., III; Costes, N. C.; Houston, W. N.; Scott, R. F.

    1972-01-01

    The Apollo 15 soil-mechanics experiment has offered greater opportunity for study of the mechanical properties of the lunar soil than previous missions, not only because of the extended lunar-surface stay time and enhanced mobility provided by the lunar roving vehicle (rover), but also because four new data sources were available for the first time. These sources were: (1) the self-recording penetrometer (SRP), (2) new, larger diameter, thin-walled core tubes, (3) the rover, and (4) the Apollo lunar-surface drill (ALSD). These data sources have provided the best bases for quantitative analyses thus far available in the Apollo Program.

  3. Solar neutrino experiments

    Energy Technology Data Exchange (ETDEWEB)

    Hampel, W. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany)

    1996-11-01

    The present status of experimental solar neutrino research is reviewed. Updated results from the Homestake, Kamiokande, GALLEX and SAGE detectors all show a deficit when compared to recent standard solar model calculations. Two of these detectors, GALLEX and SAGE, have recently been checked with artificial {sup 51}Cr neutrino sources. It is shown that astrophysical scenarios to solve the solar neutrino problems are not favoured by the data. There is hope that the results of forthcoming solar neutrino experiments can provide the answers to the open questions. (author) 6 figs., 3 tabs., 36 refs.

  4. Microlinear piezo drive experiments

    Science.gov (United States)

    Azin, A. V.; Bogdanov, E. P.; Rikkonen, S. V.; Ponomarev, S. V.; Khramtsov, A. M.

    2017-02-01

    The article embraces the experimental description of the micro linear piezo drive intended for the peripheral cord tensioner in the reflecting surface shape regulator system for large-sized transformable spacecraft antenna reflectors. The research target is the experimental investigation of the micro linear piezo drive to determine the stable oscillatory system operating modes which would include improved energy conversion parameters. The following points are briefly presented: test stand construction-design of the peripheral cord tensioner; the determined frequency characteristics and the identified resonant and actual frequencies of an oscillatory system under inertia load. A series of experiments has been conducted for both different preliminary voltages and inertia mass values.

  5. The Next Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Novella, P.

    2009-07-01

    The full text of publication follows: The NEXT experiment will search for the neutrinoless double beta decay with a high-pressure gas- Xenon TPC. Xe{sup 136} is a {beta}{beta}0{nu} emitter and yields an excellent energy resolution when used as a calorimeter, acting both as the source and as the active material of the detector. External backgrounds can be rejected by means of the tracking capabilities of the TPC. A detector containing about 100 kg Xe{sup 136} is expected to be installed at Canfranc Underground Laboratory. (author)

  6. CMS Tracker operational experience

    CERN Document Server

    Fiori, Francesco

    2016-01-01

    The CMS Tracker was repaired, recalibrated and commissioned successfully for the second run of Large Hadron Collider. In 2015 the Tracker performed well with improved hit efficiency and spatial resolution compared to Run I. Operations successfully transitioned to lower temperatures after commissioning environmental control and monitoring. This year the detector is expected to withstand luminosities that are beyond its design limits and will need a combined effort of both online and offline team to yield the high quality data that is required to reach our physics goals. We present the experience gained during the second run of the LHC and show the latest performance results of the CMS Tracker.

  7. Stirling machine operating experience

    Energy Technology Data Exchange (ETDEWEB)

    Ross, B. [Stirling Technology Co., Richland, WA (United States); Dudenhoefer, J.E. [Lewis Research Center, Cleveland, OH (United States)

    1994-09-01

    Numerous Stirling machines have been built and operated, but the operating experience of these machines is not well known. It is important to examine this operating experience in detail, because it largely substantiates the claim that stirling machines are capable of reliable and lengthy operating lives. The amount of data that exists is impressive, considering that many of the machines that have been built are developmental machines intended to show proof of concept, and are not expected to operate for lengthy periods of time. Some Stirling machines (typically free-piston machines) achieve long life through non-contact bearings, while other Stirling machines (typically kinematic) have achieved long operating lives through regular seal and bearing replacements. In addition to engine and system testing, life testing of critical components is also considered. The record in this paper is not complete, due to the reluctance of some organizations to release operational data and because several organizations were not contacted. The authors intend to repeat this assessment in three years, hoping for even greater participation.

  8. A communist teaching experiment

    DEFF Research Database (Denmark)

    Skak, Morten

    At the beginning of the course, students were told all the examination questions for the oral examination, and that they, in groups, should produce a report with a) A pedagogical presentation of (the selected part of) the theory/syllabus b) This theory put into perspective by self-produced empiri......At the beginning of the course, students were told all the examination questions for the oral examination, and that they, in groups, should produce a report with a) A pedagogical presentation of (the selected part of) the theory/syllabus b) This theory put into perspective by self......-student teaching. A form of mutual teaching where (student)teachers have good knowledge of the students’ learning problems. The role of the (conventional) teacher: To initiate and supervise the process and act as “final” teacher when this is required. The experiment produced various problems and the students...... disliked the course design. The lack of students’ ability to get credit for own qualifications was seen as a major problem. My presentation will go through the experiment. The ultimate goal of teaching is to produce people who can raise welfare in our societies. How can we measure whether or not a new form...

  9. Operational experience at ELBE

    Science.gov (United States)

    Michel, P.; Lehnert, U.; Seidel, W.

    2015-05-01

    The ELBE center for high power radiation sources is the largest user facility in the Helmholtz-Zentrum Dresden- Rossendorf. The facility is based on a 36 MeV superconducting RF Linac which can be operated up to 1.6 mA in cw mode. The electron beam is used to generate secondary radiation, such as infrared light (Free Electron Lasers), coherent THz radiation, MeV-Bremsstrahlung, fast neutrons and positrons for a wide range of basic research like semiconductor physics, nuclear astrophysics and radio biological investigations. Two high power laser systems (500 TW Ti:Sa laser, 2 PW diode pumped laser) are under construction for laser acceleration experiments and X-ray generation by Thomson scattering. The FELs are in operation since 2004 (mid-IR FEL, 4-22μm) and 2006 (far-IF FEL, 20-250μm). The fundamental features of the ELBE IR FELs, the FEL instrumentation and advanced beam diagnostics for the photon beam are described. During ten years of user operation experiences and statistical data were collected.

  10. Postmenopausal osteoporosis: Our experience

    Directory of Open Access Journals (Sweden)

    R N Mehrotra

    2012-01-01

    Full Text Available Introduction: There is very little published literature about experience with osteoporosis treatment from our country. Materials and Methods: It is a retrospective analysis of first 50 patients enrolled in our clinic for osteoporosis. Postmenopausal women with T score of less than -2.5 or history suggestive fragility fracture with supportive bone mineral density (BMD were included. Patients having hypercalcemia, abnormal renal function, myeloma and on long-term steroids were also excluded. Results: Nearly 34% subjects were below the age of 60 years, 47% of subjects were between 60 and 70 years, whereas 18% were above 70 years. Nearly 6% had family history of osteoporosis s or history of osteoporotic fractures. Nearly 20% subjects had fracture prior to starting of any treatment. A total of 86% (40/46 had evidence of Vitamin D (VD deficiency. Nearly 80% of patients were treated with bisphosphonates, 12% were treated with injectable bisphosphonates, and 8% were treated with teriperatide. Nearly 16% patients had duration of more than 5 years of experience with bisphosphonates. Follow up BMD was available in 25 subjects. BMD had improved significantly in 68% of subjects. In 24% the BMD was stable (the change was less than least significant change (LSC. In 8% BMD had shown a significant decline while being on treatment. Conclusion: Postmenopausal osteoporosis occurs in relatively younger women in our country. Majority of them are VD deficient. Oral bisphosphonates is the most common used drug; it is fairly well tolerated and effective.

  11. The NEXT experiment

    CERN Document Server

    Gomez-Cadenas, Juan Jose

    2014-01-01

    NEXT (Neutrino Experiment with a Xenon TPC) is an experiment to search neutrinoless double beta decay processes (bb0nu) in Xe136. The NEXT technology is based in the use of time projection chambers operating at a typical pressure of 15 bar and using electroluminescence to amplify the signal (HPXE). The main advantages of the experimental technique are: a) excellent energy resolution; b) the ability to reconstruct the trajectory of the two electrons emitted in the decays, which further contributes to the suppression of backgrounds; c) scalability to large masses; and d) the possibility to reduce the background to negligible levels thanks to the barium tagging technology (BATA). The NEXT roadmap was designed in four stages: i) Demonstration of the HPXE technology with prototypes deploying a mass of natural xenon in the range of 1 kg, using the NEXT-DEMO (IFIC) and NEXT-DBDM (Berkeley) prototypes; ii) Characterisation of the backgrounds to the bb0nu signal and measurement of the bb2nu signal with the NEW detecto...

  12. PAC Experiments at ISOLDE

    CERN Multimedia

    2002-01-01

    The study of hyperfine interactions offers the possibility to use radioactive nuclei as probes in matter. The @g-@g perturbated angular correlation (PAC) technique following implantation has found widespread application in this field. At ISOLDE we have been investigating electric field gradients at impurities in non-cubic metals in an ongoing series of experiments. \\\\ \\\\ The small number of probe atoms necessary for these measurements make them also ideally suited for studies of surface problems like diffusion, structure and dynamics. Cd on a molybdenum O110? surface will be studied as first system. For this purpose 10|1|0~atoms of |1|1|1|mCd will be evaporated onto the clean surface and the electric field gradient for isolated adatoms on terrace sites will be determined by PAC. The UHV system constructed for such experiments at ISOLDE is shown in the schematic drawing. It is coupled to the beam line through differential pumping stations and contains standard surface treatment and analysis equipment.

  13. The EBEX Experiment

    CERN Document Server

    Oxley, P; Baccigalupi, C; De Bernardis, P; Cho, H M; Devlin, M J; Hanany, S; Johnson, B R; Jones, T; Lee, A T; Matsumura, T; Miller, A D; Milligan, M; Renbarger, T; Spieler, H G; Stompor, R; Tucker, G S; Zaldarriaga, M

    2004-01-01

    EBEX is a balloon-borne polarimeter designed to measure the intensity and polarization of the cosmic microwave background radiation. The measurements would probe the inflationary epoch that took place shortly after the big bang and would significantly improve constraints on the values of several cosmological parameters. EBEX is unique in its broad frequency coverage and in its ability to provide critical information about the level of polarized Galactic foregrounds which will be necessary for all future CMB polarization experiments. EBEX consists of a 1.5 m Dragone-type telescope that provides a resolution of less than 8 arcminutes over four focal planes each of 4 degree diffraction limited field of view at frequencies up to 450 GHz. The experiment is designed to accommodate 330 transition edge bolometric detectors per focal plane, for a total of up to 1320 detectors. EBEX will operate with frequency bands centered at 150, 250, 350, and 450 GHz. Polarimetry is achieved with a rotating achromatic half-wave pla...

  14. Advanced Liquid Feed Experiment

    Science.gov (United States)

    Distefano, E.; Noll, C.

    1993-06-01

    The Advanced Liquid Feed Experiment (ALFE) is a Hitchhiker experiment flown on board the Shuttle of STS-39 as part of the Space Test Payload-1 (STP-1). The purpose of ALFE is to evaluate new propellant management components and operations under the low gravity flight environment of the Space Shuttle for eventual use in an advanced spacecraft feed system. These components and operations include an electronic pressure regulator, an ultrasonic flowmeter, an ultrasonic point sensor gage, and on-orbit refill of an auxiliary propellant tank. The tests are performed with two transparent tanks with dyed Freon 113, observed by a camera and controlled by ground commands and an on-board computer. Results show that the electronic pressure regulator provides smooth pressure ramp-up, sustained pressure control, and the flexibility to change pressure settings in flight. The ultrasonic flowmeter accurately measures flow and detects gas ingestion. The ultrasonic point sensors function well in space, but not as a gage during sustained low-gravity conditions, as they, like other point gages, are subject to the uncertainties of propellant geometry in a given tank. Propellant transfer operations can be performed with liquid-free ullage equalization at a 20 percent fill level, gas-free liquid transfer from 20-65 percent fill level, minimal slosh, and can be automated.

  15. The Karlsruhe Dynamo Experiment

    Directory of Open Access Journals (Sweden)

    2002-01-01

    Full Text Available It has been shown theoretically in the past that homogeneous dynamos may occur in electrically conducting fluids for various vortical velocity fields. Roberts (1972 investigated spatially periodic, infinitely extended fields of vortices which Busse (1978, 1992 confined to a finite cylindrical domain. Based on Busse's vortex arrangement a conceptual design for an experimental homogeneous dynamo has been developed and a test facility was setup at the Forschungszentrum Karlsruhe. The first experiments demonstrated that permanent dynamo action can be generated in a cylindrical container filled with liquid sodium in which by means of guide tubes counterrotating and countercurrent spiral vortices are established. The dynamo is self-exciting and the magnetic field saturates at a mean value for fixed super-critical flow rates. The instantaneous magnetic field fluctuates around this mean value by an order of about 5%. As predicted by theory the mode of the observed magnetic field is non-axisymmetric. In a series of experiments a phase- and a bifurcation diagram has been derived as a function of the spiral and axial flow rates.

  16. The EBEX Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Oxley, P.; Ade, P.; Baccigalupi, C.; deBernardis, P.; Cho, H-M.; Devlin, M.J.; Hanany, S.; Johnson, B.R.; Jones, T.; Lee, A.T.; Matsumura,T.; Miller, A.D.; Milligan, M.; Renbarger, T.; Spieler, H.G.; Stompor,R.; Tucker, G.S.; Zaldarriaga, M.

    2005-01-06

    EBEX is a balloon-borne polarimeter designed to measure the intensity and polarization of the cosmic microwave background radiation. The measurements would probe the inflationary epoch that took place shortly after the big bang and would significantly improve constraints on the values of several cosmological parameters. EBEX is unique in its broad frequency coverage and in its ability to provide critical information about the level of polarized Galactic foregrounds which will be necessary for all future CMB polarization experiments. EBEX consists of a 1.5 m Dragone-type telescope that provides a resolution of less than 8 arcminutes over four focal planes each of 4. diffraction limited field of view at frequencies up to 450 GHz. The experiment is designed to accommodate 330 transition edge bolometric detectors per focal plane, for a total of up to 1320 detectors. EBEX will operate with frequency bands centered at 150, 250, 350, and 450 GHz. Polarimetry is achieved with a rotating achromatic half-wave plate. EBEX is currently in the design and construction phase, and first light is scheduled for 2008.

  17. The Halogen Occultation Experiment

    Science.gov (United States)

    Russell, James M., III; Gordley, Larry L.; Park, Jae H.; Drayson, S. R.; Hesketh, W. D.; Cicerone, Ralph J.; Tuck, Adrian F.; Frederick, John E.; Harries, John E.; Crutzen, Paul J.

    1993-01-01

    The Halogen Occultation Experiment (HALOE) uses solar occultation to measure vertical profiles of O3, HCl, HF, CH4, H2O, NO, NO2, aerosol extinction, and temperature versus pressure with an instantaneous vertical field of view of 1.6 km at the earth limb. Latitudinal coverage is from 80 deg S to 80 deg N over the course of 1 year and includes extensive observations of the Antarctic region during spring. The altitude range of the measurements extends from about 15 km to about 60-130 km, depending on channel. Experiment operations have been essentially flawless, and all performance criteria either meet or exceed specifications. Internal data consistency checks, comparisons with correlative measurements, and qualitative comparisons with 1985 atmospheric trace molecule spectroscopy (ATMOS) results are in good agreement. Examples of pressure versus latitude cross sections and a global orthographic projection for the September 21 to October 15, 1992, period show the utility of CH4, HF, and H2O as tracers, the occurrence of dehydration in the Antarctic lower stratosphere, the presence of the water vapor hygropause in the tropics, evidence of Antarctic air in the tropics, the influence of Hadley tropical upwelling, and the first global distribution of HCl, HF, and NO throughout the stratosphere. Nitric oxide measurements extend through the lower thermosphere.

  18. Experience in open markets

    Energy Technology Data Exchange (ETDEWEB)

    Bachman, G.; Way, R.; O`Donnell, J.

    1997-05-01

    The topic of discussion in this session was experience in open markets. The session was led by Guido Bachman, President of the Independent Power Producers` Society of Alberta (IPPSA), assisted by panel members Richard Way, Director of Energy Risk Management at TransAlta, John O`Donnell, Professor of Finance at Michigan State University, and Kelly Lail, Manager of Power Acquisition at B.C. Hydro. Way spoke of the experiences with market restructuring in Alberta, describing the consultative and legislative process which determined the structure of the Alberta Power Pool (APP). The Pool began operations in January 1996. Currently there are 33 participants from generators, to distributors and marketers. Supply and demand are managed by APP by setting an hourly price based on offers and bids. Both generators and distributors get the hourly pool price, so the input price and export price of the pool are the same, however, generators and distributors are free to enter into `contract for difference` agreements. O`Donnell discussed the status of competition in Michigan. He stressed the importance of Ontario to the Michigan market, echoing the conviction of U.S. regulators that a freer economy works better. Kelly Lail spoke of the unbundling of B.C. Hydro into several generating, transmission and distribution companies in preparation for moving from exclusive service to exclusive wholesale competition. He predicted that the fierce competition will lead to a an industry shakeout, leaving only one big (B.C. Hydro) and a few niche players.

  19. Experiments with Ξ- atoms

    Science.gov (United States)

    Batty, C. J.; Friedman, E.; Gal, A.

    1999-01-01

    Experiments with Ξ- atoms are proposed in order to study the nuclear interaction of Ξ hyperons. The production of Ξ- in the (K-,K+) reaction, the Ξ- stopping in matter, and its atomic cascade are incorporated within a realistic evaluation of the results expected for Ξ- x-ray spectra across the periodic table, using an assumed Ξ-nucleus optical potential Vopt. Several optimal targets for measuring the strong-interaction shift and width of the x-ray transition to the ``last'' atomic level observed are singled out: F, Cl, I, and Pb. The sensitivity of these observables to the parameters of Vopt is considered. The relevance of such experiments is discussed in the context of strangeness -2 nuclear physics and multistrange nuclear matter. Finally, with particular reference to searches for the H dibaryon, the properties of Ξ-d atoms are also discussed. The role of Stark mixing and its effect on S and P state capture of Ξ- by the deuteron together with estimates of the resulting probability for producing the H dibaryon are considered in detail.

  20. The Nucifer Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Cucoanes, A.S., E-mail: cucoanes@subatech.in2p3.fr

    2014-06-15

    In nuclear reactors, a large number of antineutrinos are generated in the decay chains of the fission products; thus a survey of the antineutrino flux could provide valuable information related to the uranium and plutonium content of the core. This application generated interest by the IAEA in using antineutrino detectors as a potential safeguard tool. Here we present the Nucifer experiment, developed in France, by CEA and CNRS/IN2P3. The design of this new antineutrino detector has focused on safety, size reduction, reliability and high detection efficiency with a good background rejection. The Nucifer detector is currently taking data at the OSIRIS research reactor, inside CEA-Saclay. Presently, the ongoing analyses are considering the main sources of background for the antineutrino detection; the first antineutrino result is expected in 2013. A possible contribution to the understanding of the so called “reactor antineutrino anomaly” is also discussed. Finally, we present a brief description of the proposed experiments at very short baselines (VSBL) from reactors in France.

  1. Petascale system management experiences.

    Energy Technology Data Exchange (ETDEWEB)

    Desai, N.; Bradshaw, R.; Lueninghoener, C.; Cherry, A.; Coghlan, S.; Scullin, W. (LCF); ( MCS)

    2008-01-01

    Petascale High-Performance Computing (HPC) systems are among the largest systems in the world. Intrepid, one such system, is a 40,000 node, 556 teraflop Blue Gene/P system that has been deployed at Argonne National Laboratory. In this paper, we provide some background about the system and our administration experiences. In particular, due to the scale of the system, we have faced a variety of issues, some surprising to us, that are not common in the commodity world. We discuss our expectations, these issues, and approaches we have used to address them. HPC systems are a bellwether for computing systems at large, in multiple regards. HPC users are motivated by the need for absolute performance; this results in two important pushes. HPC users are frequently early adopters of new technologies and techniques. Successful technologies, like Infiniband, prove their value in HPC before gaining wider adoption. Unfortunately, this early adoption alone is not sufficient to achieve the levels of performance required by HPC users; parallelism must also be harnessed. Over the last 15 years, beowulf clustering has provided amazing accessibility to non-HPC-savvy and even non-technical audiences. During this time, substantial adoption of clustering has occurred in many market segments unrelated to computational science. A simple trend has emerged: the scale and performance of high-end HPC systems are uncommon at first, but become commonplace over the course of 3-5 years. For example, in early 2003, several systems on the Top500 list consisted of either 1024 nodes or 4096-8192 cores. In 2008, such systems are commonplace. The most recent generation of high-end HPC systems, so called petascale systems, are the culmination of years of research and development in research and academia. Three such systems have been deployed thus far. In addition to the 556 TF Intrepid system at Argonne National Laboratory, a 596 TF Blue Gene/L-based system has been deployed at Lawrence Livermore

  2. The Virtual Arizona Experience

    Science.gov (United States)

    Allison, M. L.; Davis, R.; Conway, F. M.; Bellasai, R.

    2012-12-01

    To commemorate the once-in-a-lifetime event of Arizona's hundredth birthday, the Centennial Commission and the Governor of Arizona envisioned a museum and companion website that would capture the state's history, celebrate its people, and embrace its future. Working with world-renowned museum designers, the state began to seek ideas from across Arizona to create plans for a journey of discovery through science and the humanities. The museum would introduce visitors to some of the people who nurtured the state through its early years and others who are innovating its tomorrows. Showcases would include the resources and experiences that shaped the state's history and are transforming its present day, highlighting the ingenuity that tamed the wild frontier and is envisioning Arizona's next frontiers through science and technology. The Arizona Experience (www.arizonaexperience.org) was initially intended to serve as the web presence for the physical museum, but as delays occurred with the physical museum, the site has quickly developed an identify of its own as an interactive, multimedia experience, reaching a wider audience with functions that would be difficult or expensive to produce in a museum. As leaders in scientific and technological innovation in the state, the Arizona Geological Survey was tasked with designing and creating the Arizona Experience site. The general themes remain the same; however, the site has added content and applications that are better suited to the online environment in order to create a rich, dynamic supplement to a physical museum experience. The website offers the features and displays of the future museum with the interactive nature and learning environment of the web. This provides an encyclopedic overview of the State of Arizona by subject matter experts in a manner that is free and open to the public and erases socio-economic, political, and physical boundaries. Over the Centennial Year of 2012 the site will release a new theme and

  3. Aesthetic experience of dance performances

    Directory of Open Access Journals (Sweden)

    Vukadinović Maja

    2012-01-01

    Full Text Available In this study the aesthetic experience of dance performances is investigated. The study includes construction of an instrument for measuring the aesthetic experience of dance performances and an investigation of the structure of both dancers’ and spectators’ aesthetic experience. The experiments are carried out during eight different performances of various dance forms, including classical ballet, contemporary dance, flamenco and folklore. Three factors of aesthetic experience of dance performances are identified: Dynamism, Exceptionality and Affective Evaluation. The results show that dancers’ aesthetic experience has a somewhat different factorial structure from that of the spectators’. Unlike spectators’ aesthetic experience, dancers’ aesthetic experience singles out the Excitement factor. The results are discussed within the context of dancers’ proprioception and spectators’ exteroception since these findings confirm the idea of a significant role of proprioception in dancers’ aesthetic experience.

  4. Urban Experiments and Concrete Utopias

    DEFF Research Database (Denmark)

    Andersson, Lasse

    2009-01-01

    The paper explores how concrete urban experiments can challenge the pecuniary version of the experience city and stimulate a locally rooted and democratic version of an experience based city using heterotopias and concrete utopias as the link between top down planning and bottom up experiments...... in an emerging  experience city.  The first part of the article describes the growing and uncritical interest in the concepts of the ‘creative economy’, ‘creative class’ (Florida 2002) and their relationship with cultural production and economic growth (Bille & Schulze 2006), many of which, however, are driven...... mainly by political discourses producing more strategies and reports or commodified ´experience projects´ that are not rooted in real democratic experiments. Instead, the experience based development should emphasize a more object-oriented and a critical approach where real urban experiments link public...

  5. Experience Report for WOPR

    Energy Technology Data Exchange (ETDEWEB)

    Pope, G

    2010-04-06

    One of the purposes of the SQA effort at LLNL is to attempt to determine the 'goodness' of the research codes used for various scientific applications. Typically these are two and three dimensional multi-physics simulation and modeling codes. These legacy research codes are used for applciations such as atmospheric dispersion modeling and analysis and prediction of the performance of engineered systems. These codes are continually subjected to automated regression test suites consisting of verified and validated expected results. Code is managed in repositories. Experience level of developers is high in the knowledge domain, platforms, and languages used. Code size of the multi-physics code used in this study was 578,242 lines excluding comment and blank lines or 5538.7 function points. Languages were 70% C++, 20% C, and 10% Fortran. The code has 130 users and a development team of 14 and an embedded SQE. The code has achieved 100% prime feature test coverage, 73.6% functional test coverage, and 71.5% statement test coverage. The average cyclomatic complexity of the code was 6.25. The codes have evolved over 10 years. Research codes are challenging because there is a desire to balance agility with discipline as well as compliance with DOE standards. Agility is important to allow experimentation with new algorithms and addition of the latest physics features. Discipline is important to increase the quality of the codes. Automation of processes and defect prevention/detection are deployed throughout the software development process. Since resarch codes are a small segment of the software industry, not much information exists in terms of reliability studies on these types of codes. This paper describes attempts to determine the goodness of these research codes. Goodness defined as both correctness of the codes and their fault densities. Correctness is determined by user interviews, peer review; feature based automated testing, and coverage measurement. This

  6. The trapped human experiment.

    Science.gov (United States)

    Huo, R; Agapiou, A; Bocos-Bintintan, V; Brown, L J; Burns, C; Creaser, C S; Devenport, N A; Gao-Lau, B; Guallar-Hoyas, C; Hildebrand, L; Malkar, A; Martin, H J; Moll, V H; Patel, P; Ratiu, A; Reynolds, J C; Sielemann, S; Slodzynski, R; Statheropoulos, M; Turner, M A; Vautz, W; Wright, V E; Thomas, C L P

    2011-12-01

    This experiment observed the evolution of metabolite plumes from a human trapped in a simulation of a collapsed building. Ten participants took it in turns over five days to lie in a simulation of a collapsed building and eight of them completed the 6 h protocol while their breath, sweat and skin metabolites were passed through a simulation of a collapsed glass-clad reinforced-concrete building. Safety, welfare and environmental parameters were monitored continuously, and active adsorbent sampling for thermal desorption GC-MS, on-line and embedded CO, CO(2) and O(2) monitoring, aspirating ion mobility spectrometry with integrated semiconductor gas sensors, direct injection GC-ion mobility spectrometry, active sampling thermal desorption GC-differential mobility spectrometry and a prototype remote early detection system for survivor location were used to monitor the evolution of the metabolite plumes that were generated. Oxygen levels within the void simulator were allowed to fall no lower than 19.1% (v). Concurrent levels of carbon dioxide built up to an average level of 1.6% (v) in the breathing zone of the participants. Temperature, humidity, carbon dioxide levels and the physiological measurements were consistent with a reproducible methodology that enabled the metabolite plumes to be sampled and characterized from the different parts of the experiment. Welfare and safety data were satisfactory with pulse rates, blood pressures and oxygenation, all within levels consistent with healthy adults. Up to 12 in-test welfare assessments per participant and a six-week follow-up Stanford Acute Stress Response Questionnaire indicated that the researchers and participants did not experience any adverse effects from their involvement in the study. Preliminary observations confirmed that CO(2), NH(3) and acetone were effective markers for trapped humans, although interactions with water absorbed in building debris needed further study. An unexpected observation from the NH(3

  7. Design of Computer Experiments

    DEFF Research Database (Denmark)

    Dehlendorff, Christian

    The main topic of this thesis is design and analysis of computer and simulation experiments and is dealt with in six papers and a summary report. Simulation and computer models have in recent years received increasingly more attention due to their increasing complexity and usability. Software...... that the sources of variation of the simulation model can be divided in two components corresponding to changes in the environmental factors (the uncontrollable factor settings) and to random variation. Moreover, the structure of the environmental effects can be estimated, which can be used to put the system...... in a more robust operating mode. The interpolation technique called Kriging is the topic of Paper F, which is a widely applied technique for building so called models-for-the-model (metamodels). We propose a method that handles both qualitative and quantitative factors, which is not covered by the standard...

  8. The HOLMES Experiment

    Science.gov (United States)

    Faverzani, M.; Alpert, B.; Backer, D.; Bennet, D.; Biasotti, M.; Brofferio, C.; Ceriale, V.; Ceruti, G.; Corsini, D.; Day, P. K.; De Gerone, M.; Dressler, R.; Ferri, E.; Fowler, J.; Fumagalli, E.; Gard, J.; Gatti, F.; Giachero, A.; Hays-Wehle, J.; Heinitz, S.; Hilton, G.; Köster, U.; Lusignoli, M.; Maino, M.; Mates, J.; Nisi, S.; Nizzolo, R.; Nucciotti, A.; Orlando, A.; Parodi, L.; Pessina, G.; Pizzigoni, G.; Puiu, A.; Ragazzi, S.; Reintsema, C.; Ribeiro-Gomez, M.; Schmidt, D.; Schuman, D.; Siccardi, F.; Sisti, M.; Swetz, D.; Terranova, F.; Ullom, J.; Vale, L.

    2016-08-01

    The determination of the neutrino mass is an open issue in modern particle physics and astrophysics. The direct mass measurement is the only theory-unrelated experimental tool capable to probe such quantity. The HOLMES experiment will measure the end-point energy of the electron capture decay of ^{163}Ho, aiming at a statistical sensitivity on the neutrino mass around 1 eV/c^2. In order to acquire the large needed statistics by keeping the pile-up contribution as low as possible, 1000 transition edge sensors will be readout simultaneously with the frequency domain readout, a multiplexing technique where the multiplex factor is only limited by the bandwidth of the available commercial fast digitizers. We outline here the HOLMES project with its technical challenges, and its status and perspectives.

  9. The SNO+ Experiment

    CERN Document Server

    Chen, Mark C

    2008-01-01

    The SNO+ experiment is the follow-up to the Sudbury Neutrino Observatory (SNO). The heavy water that was in SNO will be replaced with a liquid scintillator of linear alkylbenzene (plus fluor). SNO+ has many physics goals including detecting pep and CNO solar neutrinos, detecting geo-neutrinos, studying reactor neutrino oscillations, serving as a supernova neutrino detector and carrying out a search for neutrinoless double beta decay by adding neodymium to the liquid scintillator. Since a large amount of 150Nd isotope can be added to SNO+, a competitive search would be possible, with sensitivity below 100 meV using natural Nd and sensitivity below 40 meV with enriched neodymium.

  10. Limit experiments of GARCH

    CERN Document Server

    Buchmann, Boris; 10.3150/10-BEJ328

    2012-01-01

    GARCH is one of the most prominent nonlinear time series models, both widely applied and thoroughly studied. Recently, it has been shown that the COGARCH model (which was introduced a few years ago by Kl\\"{u}ppelberg, Lindner and Maller) and Nelson's diffusion limit are the only functional continuous-time limits of GARCH in distribution. In contrast to Nelson's diffusion limit, COGARCH reproduces most of the stylized facts of financial time series. Since it has been proven that Nelson's diffusion is not asymptotically equivalent to GARCH in deficiency, in the present paper, we investigate the relation between GARCH and COGARCH in Le Cam's framework of statistical equivalence. We show that GARCH converges generically to COGARCH, even in deficiency, provided that the volatility processes are observed. Hence, from a theoretical point of view, COGARCH can indeed be considered as a continuous-time equivalent to GARCH. Otherwise, when the observations are incomplete, GARCH still has a limiting experiment, which we ...

  11. Cell Radiation Experiment System

    Science.gov (United States)

    Morrison, Dennis R.

    2010-01-01

    The cell radiation experiment system (CRES) is a perfused-cell culture apparatus, within which cells from humans or other animals can (1) be maintained in homeostasis while (2) being exposed to ionizing radiation during controlled intervals and (3) being monitored to determine the effects of radiation and the repair of radiation damage. The CRES can be used, for example, to determine effects of drug, radiation, and combined drug and radiation treatments on both normal and tumor cells. The CRES can also be used to analyze the effects of radiosensitive or radioprotectant drugs on cells subjected to radiation. The knowledge gained by use of the CRES is expected to contribute to the development of better cancer treatments and of better protection for astronauts, medical-equipment operators, and nuclear-power-plant workers, and others exposed frequently to ionizing radiation.

  12. Information sciences experiment system

    Science.gov (United States)

    Katzberg, Stephen J.; Murray, Nicholas D.; Benz, Harry F.; Bowker, David E.; Hendricks, Herbert D.

    1990-01-01

    The rapid expansion of remote sensing capability over the last two decades will take another major leap forward with the advent of the Earth Observing System (Eos). An approach is presented that will permit experiments and demonstrations in onboard information extraction. The approach is a non-intrusive, eavesdropping mode in which a small amount of spacecraft real estate is allocated to an onboard computation resource. How such an approach allows the evaluation of advanced technology in the space environment, advanced techniques in information extraction for both Earth science and information science studies, direct to user data products, and real-time response to events, all without affecting other on-board instrumentation is discussed.

  13. Designing learning experiences.

    Science.gov (United States)

    Collins, Jannette

    2007-01-01

    Creation of significant learning experiences follows basic steps of instructional design related to situational factors, goals and objectives, feedback and evaluation methods, teaching and learning activities, alignment of the preceding elements, and course evaluation. Goals should reflect what students will learn at the end of the course and what will still be with them several years later. Objectives should focus on learner performance, not teacher performance, and on behavior, not subject matter; there should be only one learning outcome per objective. Students learn more and retain their knowledge longer if they acquire it in an active rather than a passive manner. The situational factors, goals and objectives, feedback and evaluation, and teaching and learning activities should all reflect and support each other. The act of course evaluation closes the educational loop of design, implement, evaluate, and modify. (c) RSNA, 2007.

  14. Coblation Tonsillectomy our experience

    Directory of Open Access Journals (Sweden)

    Balasubramanian Thiagarajan

    2014-03-01

    Full Text Available Tonsillectomy happens to be the commonly performed surgery these days. Like any other surgical procedure this surgical procedure has also undergone tremendous technological changes. One such evolving change happens to be coblation tonsillectomy. Coblation technology is actually an offshoot of radiofrequency surgery. This technique involves passing radiofrequency energy through a conductive medium like isotonic sodium chloride or potassium chloride solution. This produces a plasma field which is composed of sodium and hydroxyl ions which ablates tissue. This tissue ablation takes place at (60-70° C which is much lower than that achieved during other electro surgical techniques (400 – 600° C. This article attempts to discuss the use of this technology to perform tonsillectomy with special emphasis on sharing our experience with the system. This study involves critical appraisal of 25 coblation tonsillectomy surgeries performed at Stanley Medical college during the year 2013.

  15. Recombination experiments at CRYRING

    Energy Technology Data Exchange (ETDEWEB)

    Spies, W.; Glans, P.; Zong, W.; Gao, H.; Andler, G.; Justiniano, E.; Saito, M.; Schuch, R

    1998-11-15

    Recent advances in studies of electron-ion recombination processes at low relative energies with the electron cooler of the heavy-ion storage ring CRYRING are shown. Through the use of an adiabatically expanded electron beam, collisions down to 10{sup -4}eV relative energies were measured with highly charged ions stored in the ring at around 15 MeV/amu energies. Examples of recombination measurements for bare ions of D{sup +}, He{sup 2+}, N{sup 7+}, Ne{sup 10+} and Si{sup 14+} are presented. Further on, results of an experiment measuring laser-induced recombination (LIR) into n=3 states of deuterium with polarized laser light are shown.

  16. Transgressive first clinical experiences

    DEFF Research Database (Denmark)

    Jensen, Carsten Juul; Jeppesen, Lise Kofoed; Drachmann, Merete

    2014-01-01

    This Study seeks to comprehend learning experiences of nursing students during their first clinical in-service placement. This Paper is part of a longitudinal development project interviewing the Student Nurse after each one of the five clinical in-service placements and then one year after gradu...... to advanced beginner, and adjusting to the workplace community. The conclusion is that the learning of nursing students during their first clinical in-service placement appears informal and not founded on evident best practice....... graduation as a Nurse. The Study has a qualitative methodology, inspired by Michael Eraut’s thoughts on learning in the workplace. When the workplace perspective is applied, learning seems to be concentrated on actual situations which the Learner is in, in contrast to employing constructed concepts...

  17. Gas Detection for Experiments

    CERN Document Server

    Hay, D

    2001-01-01

    Flammable gases are often used in detectors for physics experiments. The storage, distribution and manipulation of such flammable gases present several safety hazards. As most flammable gases cannot be detected by human senses, specific well-placed gas detection systems must be installed. Following a request from the user group and in collaboration with CERN safety officers, risk analyses are performed. An external contractor, who needs to receive detailed user requirements from CERN, performs the installations. The contract is passed on a guaranteed results basis. Co-ordination between all the CERN groups and verification of the technical installation is done by ST/AA/AS. This paper describes and focuses on the structured methodology applied to implement such installations based on goal directed project management techniques (GDPM). This useful supervision tool suited to small to medium sized projects facilitates the task of co-ordinating numerous activities to achieve a completely functional system.

  18. The PANTHER User Experience

    Energy Technology Data Exchange (ETDEWEB)

    Coram, Jamie L. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Morrow, James D. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Perkins, David Nikolaus [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-09-01

    This document describes the PANTHER R&D Application, a proof-of-concept user interface application developed under the PANTHER Grand Challenge LDRD. The purpose of the application is to explore interaction models for graph analytics, drive algorithmic improvements from an end-user point of view, and support demonstration of PANTHER technologies to potential customers. The R&D Application implements a graph-centric interaction model that exposes analysts to the algorithms contained within the GeoGraphy graph analytics library. Users define geospatial-temporal semantic graph queries by constructing search templates based on nodes, edges, and the constraints among them. Users then analyze the results of the queries using both geo-spatial and temporal visualizations. Development of this application has made user experience an explicit driver for project and algorithmic level decisions that will affect how analysts one day make use of PANTHER technologies.

  19. Sequential experiments with primes

    CERN Document Server

    Caragiu, Mihai

    2017-01-01

    With a specific focus on the mathematical life in small undergraduate colleges, this book presents a variety of elementary number theory insights involving sequences largely built from prime numbers and contingent number-theoretic functions. Chapters include new mathematical ideas and open problems, some of which are proved in the text. Vector valued MGPF sequences, extensions of Conway’s Subprime Fibonacci sequences, and linear complexity of bit streams derived from GPF sequences are among the topics covered in this book. This book is perfect for the pure-mathematics-minded educator in a small undergraduate college as well as graduate students and advanced undergraduate students looking for a significant high-impact learning experience in mathematics.

  20. Tribology theory versus experiment

    Science.gov (United States)

    Ferrante, John

    1987-01-01

    Tribology, the study of friction and wear of materials, has achieved a new interest because of the need for energy conservation. Fundamental understanding of this field is very complex and requires a knowledge of solid-state physics, material science, chemistry, and mechanical engineering. This paper is meant to be didactic in nature and outlines some of the considerations needed for a tribology research program. The approach is first to present a simple model, a field emission tip in contact with a flat surface, in order to elucidate important considerations, such as contact area, mechanical deformations, and interfacial bonding. Then examples from illustrative experiments are presented. Finally, the current status of physical theories concerning interfacial bonding are presented.

  1. INITIAL COOLING EXPERIMENT (ICE)

    CERN Multimedia

    1979-01-01

    ICE was built in 1977, using the modified bending magnets of the g-2 muon storage ring (see 7405430). Its purpose was to verify the validity of stochastic and electron cooling for the antiproton project. Stochastic cooling proved a resounding success early in 1978 and the antiproton project could go ahead, now entirely based on stochastic cooling. Electron cooling was experimented with in 1979. The 26 kV equipment is housed in the cage to the left of the picture, adjacent to the "e-cooler" located in a straight section of the ring. With some modifications, the cooler was later transplanted into LEAR (Low Energy Antiproton Ring) and then, with further modifications, into the AD (Antiproton Decelerator), where it cools antiprotons to this day (2006). See also: 7711282, 7802099, 7809081.

  2. The Cibola flight experiment

    Energy Technology Data Exchange (ETDEWEB)

    Caffrey, Michael Paul [Los Alamos National Laboratory; Nelson, Anthony [Los Alamos National Laboratory; Salazar, Anthony [Los Alamos National Laboratory; Roussel - Dupre, Diane [Los Alamos National Laboratory; Katko, Kim [Los Alamos National Laboratory; Palmer, Joseph [ISE-3; Robinson, Scott [Los Alamos National Laboratory; Wirthlin, Michael [BRIGHAM YOUNG UNIV; Howes, William [BRIGHAM YOUNG UNIV; Richins, Daniel [BRIGHAM YOUNG UNIV

    2009-01-01

    The Cibola Flight Experiment (CFE) is an experimental small satellite carrying a reconfigurable processing instrument developed at the Los Alamos National Laboratory that demonstrates the feasibility of using FPGA-based high-performance computing for sensor processing in the space environment. The CFE satellite was launched on March 8, 2007 in low-earth orbit and has operated extremely well since its deployment. The nine Xilinx Virtex FPGAs used in the payload have been used for several high-throughput sensor processing applications and for single-event upset (SEU) monitoring and mitigation. This paper will describe the CFE system and summarize its operational results. In addition, this paper will describe the results from several SEU detection circuits that were performed on the spacecraft.

  3. Teneriffe, an Astronomer's Experiment

    Science.gov (United States)

    Piazzi Smyth, Charles

    2010-06-01

    Part I. The Voyage and the Climb: 1. Sailing in the Trades; 2. Santa Cruz; 3. Orotava; 4. Begin the ascent; 5. Arrival on Guajara; Part II. On the Crater of Elevation: 1. Securing the station; 2. South-west alarm; 3. Term-day work; 4. The great crater; 5. Solar radiation; 6. Whirlwinds and visitors; 7. Drought and light; 8. End of Guajara; Part III. On the Crater of Eruption: 1. Scaling the central cone; 2. Early experiences of Alta Vista; 3. Bringing up the telescope; 4. Battle of the clouds; 5. Summit of the peak; 6. Autumn in excelsis; 7. The reiterated question; 8. The ice cavern; 9. Last of the mountain; Part IV. Lowlands of Teneriffe: 1. Seasons and plants; 2. Dracoena Draco; 3. Adieu.

  4. CAREER GUIDANCE EXPERIENCE ABROAD

    Directory of Open Access Journals (Sweden)

    Sergey N. Tolstoguzov

    2015-01-01

    Full Text Available The aim of this paper is to describe the experience of careeroriented activities carried out with students of schools in developed and developing countries. Career Guidance in Russia, despite the vast experience of its implementation, is experiencing serious difficulties. In this regard, it is important to take into account the international experience career-oriented activities, such as in the developed countries of North America and the European Union as well as in several Asian countries with rapidly growing economies and a large demographic potential, taking into account the best variants for the Russian education system. Methods. The experience of career-oriented work undertaken with pupils of the USA, Canada, Israel, France, UK, Germany, Denmark, Sweden, Japan, Singapore, China and India is shown on the basis of the comparative analysis of different publications and information sources. The author has made an attempt to generalize the principles of psycho-pedagogical and administrative assistance in professional self-determination of senior pupils abroad. Scientific novelty. The approaches to career-oriented activities in countries with different levels of economic development are compared for the first time. Some principles are revealed. Firstly, the higher the income level per capita in the country, the greater attention is given to vocational guidance. The politics in the developed countries is based on interests of the individual: children’s acquaintance with the world of professions begins already at younger school and the moment of definitive selfdetermination is postponed till the end of their senior stage of education; the possibility of direction change of professional preparation in case of detection of discrepancy of qualities of the pupil to originally selected profile is provided. Career-oriented activity in developing countries, on the contrary, is rigidly coordinated to requirements of economy and a labour market

  5. The Bumpy Torus Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Cobble, James Allen [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-06-09

    This document summarizes the Bumpy Torus Experiment as a viable fusion reactor concept. Conclusions reached include the following: In 30 years, order-of-magnitude technological advances have occurred in multiple areas of plasma heating and confinement. The ORNL bumpy torus of the 1970s was technology limited. Now that ITER is technology limited, an alternate concept is needed. A device built on such a concept should be current free, CW, modular, have a gentle shutdown, and demonstrable stability. The bumpy torus meets or has the potential to meet all of these criteria. Earlier, stability was not possible due to power limits; it has not been fully tested. It is time to revisit the bumpy-torus concept with a modest new machine.

  6. The Armstrong experiment revisited

    Science.gov (United States)

    Fuchs, Elmar C.; Wexler, Adam D.; Paulitsch-Fuchs, Astrid H.; Agostinho, Luewton L. F.; Yntema, Doekle; Woisetschläger, Jakob

    2014-04-01

    When a high-voltage direct-current is applied to two beakers filled with water or polar liquid dielectrica, a horizontal bridge forms between the two beakers. This experiment was first carried out by Lord Armstrong in 1893 and then forgotten until recently. Such bridges are stable by the action of electrohydrodynamic (EHD) forces caused by electric field gradients counteracting gravity. Due to these gradients a permanent pumping of liquid from one beaker into the other is observed. At macroscopic scale several of the properties of a horizontal water bridge can be explained by modern electrohydrodynamics, analyzing the motion of fluids in electric fields. Whereas on the molecular scale water can be described by quantum mechanics, there is a conceptual gap at mesoscopic scale which is bridged by a number of theories including quantum mechanical entanglement and coherent structures in water - theories that we discuss here. Much of the phenomenon is already understood, but even more can still be learned from it, since such "floating" liquid bridges resemble a small high voltage laboratory of their own: The physics of liquids in electric fields of some kV/cm can be studied, even long time experiments like neutron or light scattering are feasible since the bridge is in a steady-state equilibrium and can be kept stable for hours. It is also an electro-chemical reactor where compounds are transported through by the EHD flow, enabling the study of electrochemical reactions under potentials which are otherwise not easily accessible. Last but not least the bridge provides the experimental biologist with the opportunity to expose living organisms such as bacteria to electric fields without killing them, but with a significant influence on their behavior, and possibly, even on their genome.

  7. Voyager imaging experiment

    Science.gov (United States)

    Smith, B.A.; Briggs, G.A.; Danielson, G.E.; Cook, A.F.; Davies, M.E.; Hunt, G.E.; Masursky, H.; Soderblom, L.A.; Owen, T.C.; Sagan, C.; Suomi, V.E.

    1977-01-01

    The overall objective of this experiment is exploratory reconnaissance of Jupiter, Saturn, their satellites, and Saturn's rings. Such reconnaissance, at resolutions and phase angles unobtainable from Earth, can be expected to provide much new data relevant to the atmospheric and/or surface properties of these bodies. The experiment also has the following specific objectives: Observe and characterize the global circulation of the atmospheres of Jupiter and Saturn; Determine the horizontal and vertical structure of the visible clouds and establish their relationship to the belted appearance and dynamical properties of the planetary atmospheres; Determine the vertical structure of high, optically-thin, scattering layers on Jupiter and Saturn; Determine the nature of anomalous features such as the Great Red Spot, South Equatorial Belt disturbances, etc.; Characterize the nature of the colored material in the clouds of Jupiter and Saturn, and identify the nature and sources of chromophores on Io and Titan; Perform comparative geologic studies of many satellites at less than 15-km resolution; Map and characterize the geologic structure of several satellites at high resolution (???1 km); Investigate the existence and nature of atmospheres on the satellites; Determine the mass, size, and shape of many of the satellites by direct measurement; Determine the direction of the spin axes and periods of rotation of several satellites, and establish coordinate systems for the larger satellites; Map the radial distribution of material in Saturn's rings at high resolution; Determine the optical scattering properties of the primaries, rings, and satellites at several wavelengths and phase angles; Search for novel physical phenomena, e.g., phenomena associated with the Io flux tube, meteors, aurorae, lightning, or satellite shadows. ?? 1977 D. Reidel Publishing Company.

  8. For the love of experience: changing the experience economy discourse

    NARCIS (Netherlands)

    Snel, J.M.C.

    2011-01-01

    The attention for experiences as economic offerings has increased enormously in the last decade. However, the lack of a clear definition of experience and the bias towards the organization’s perspective in the discourse cause much confusion. In this study experience is taken back to its basis: the e

  9. For the love of experience: changing the experience economy discourse

    NARCIS (Netherlands)

    Snel, J.M.C.

    2011-01-01

    The attention for experiences as economic offerings has increased enormously in the last decade. However, the lack of a clear definition of experience and the bias towards the organization’s perspective in the discourse cause much confusion. In this study experience is taken back to its basis: the

  10. Metabolic and physiochemical responses to a whole-lake experimental increase in dissolved organic carbon in a north-temperate lake

    Science.gov (United States)

    Jacob A. Zwart; Nicola Craig; Patrick T. Kelly; Stephen D. Sebestyen; Christopher T. Solomon; Brian C. Weidel; Stuart E. Jones

    2016-01-01

    Over the last several decades, many lakes globally have increased in dissolved organic carbon (DOC), calling into question how lake functions may respond to increasing DOC. Unfortunately, our basis for making predictions is limited to spatial surveys, modeling, and laboratory experiments, which may not accurately capture important whole-ecosystem processes. In this...

  11. Partnership in Undergraduate Research Experience

    Science.gov (United States)

    Practical laboratory and work experience has been helpful in reinforcing the undergraduate educational experience. With limited resources, individual organizations may struggle to give a student a well rounded opportunity. Most undergraduates work within internships or cooperative educational fram...

  12. The QUIJOTE experiment

    Science.gov (United States)

    López-Caniego, Marcos

    The QUIJOTE (Q-U-I JOint Tenerife) Experiment† (Rubiño-Martín et al. 2010)) is observing the polarization of the Cosmic Microwave Background and other Galactic and extragalactic signals at medium and large angular scales in the frequency range of 10-40 GHz. This experiment is going to provide valuable information about the polarization properties of synchrotron and anomalous microwave emission at these frequencies. It consists of two telescopes and three instruments located at the the Teide Observatory (2400 m) in Tenerife, Canary Islands, Spain. This project has two phases: Phase I, the first telescope (QT1) and a multi-frequency instrument (MFI) are in operations since November 2012 observing between 10 and 20 GHz. A second instrument (TGI) with 31 polarimeters working at 30 GHz is expected to start operations in Autumn 2015 and will be devoted to primordial B-mode science. This instrument will include a fixed polariser and 90 and 180 phase switches to generate four polarization states to minimize the different systematics in the receiver; Phase II, a second QUIJOTE telescope (QT2), already in operation, and a third instrument (FGI) with 40 polarimeters working at 41 GHz, safely below the 60-GHz oxygen absorption band, will significantly increment the sensitivity of the QUIJOTE project to detect the r parameter (tensor-to-scalar ratio). The reason for this is not only the significant reduction of noise due to the number of polarimeters that will incorporate but also the lower synchrotron signal from our galaxy expected at these higher frequencies. The maps obtained with the multi-frequency instrument (10-20 GHz), in combination with data from other experiments like Planck and the VLA, will be used to clean the diffuse and compact foreground emission at 30 and 40 GHz, the cosmological channels. After three years of effective observations we expect to reach the required sensitivity to detect a primordial gravitational-wave component if the tensor

  13. SPRUCE experiment data infrastructure

    Science.gov (United States)

    Krassovski, M.; Hanson, P. J.; Boden, T.; Riggs, J.; Nettles, W. R.; Hook, L. A.

    2013-12-01

    The Carbon Dioxide Information Analysis Center (CDIAC) at Oak Ridge National Laboratory (ORNL), USA has provided scientific data management support for the US Department of Energy and international climate change science since 1982. Among the many data activities CDIAC performs are design and implementation of the data systems. One current example is the data system and network for SPRUCE experiment. The SPRUCE experiment (http://mnspruce.ornl.gov) is the primary component of the Terrestrial Ecosystem Science Scientific Focus Area of ORNL's Climate Change Program, focused on terrestrial ecosystems and the mechanisms that underlie their responses to climatic change. The experimental work is to be conducted in a bog forest in northern Minnesota, 40 km north of Grand Rapids, in the USDA Forest Service Marcell Experimental Forest (MEF). The site is located at the southern margin of the boreal peatland forest. Experimental work in the 8.1-ha S1 bog will be a climate change manipulation focusing on the combined responses to multiple levels of warming at ambient or elevated CO2 (eCO2) levels. The experiment provides a platform for testing mechanisms controlling the vulnerability of organisms, biogeochemical processes and ecosystems to climatic change (e.g., thresholds for organism decline or mortality, limitations to regeneration, biogeochemical limitations to productivity, the cycling and release of CO2 and CH4 to the atmosphere). The manipulation will evaluate the response of the existing biological communities to a range of warming levels from ambient to +9°C, provided via large, modified open-top chambers. The ambient and +9°C warming treatments will also be conducted at eCO2 (in the range of 800 to 900 ppm). Both direct and indirect effects of these experimental perturbations will be analyzed to develop and refine models needed for full Earth system analyses. SPRUCE provides wide range continuous and discrete measurements. To successfully manage SPRUCE data flow

  14. Results of the BSE experiment

    Science.gov (United States)

    Iwasaki, K.; Yamamoto, M.; Kurakake, Y.; Kinoshita, S.

    Results of satellite broadcasting experiments carried out using the BSE (Japan's Medium-scale Broadcasting Satellite for Experimental Purpose) are described. Consideration is given to the following experiments: the reception of radio waves from the satellite, radio wave attenuation and scattering, the uplink power control experiment, experiments with transportable earth stations, the transmission of FM-TV signals, and frequency sharing between the broadcasting satellite and broadcasting services in the 12 GHz band.

  15. Fresh perspectives on customer experience

    OpenAIRE

    McColl-Kennedy, Janet; Gustafsson, Anders; Jaakkola, Elina; Klaus, Phil; Radnor, Zoe; Perks, Helen; Friman, Margareta

    2015-01-01

    Purpose – The purpose is to provide directions for future research on: (1) broadening the role of customers in customer experience; (2) taking a practice-based approach to customer experience; and (3) recognizing the holistic, dynamic nature of customer experience across all touch points and over time. Design/methodology/approach – The approach is conceptual identifying current gaps in research on customer experience. Findings – The findings include a set of research questions and re...

  16. THE EXPERIENCE OF ART – THE EMPIRIA OR EXPERIMENT?

    Directory of Open Access Journals (Sweden)

    Franciszek Chmielowski

    2010-01-01

    Full Text Available In contemporary aesthetics exists an belief, that the experience of art is the primary fact, which initiates and leads theoretical reflection, as also is the state basis of creating, valuing and the opinion on art. Present text is the test of philosophical recognition of relationship between field of products of new art as well as with context formative it experiences. Author motivates thesis, that radical changes in present art have their source in of meanings consisting on primary notion of experience changes. The present artistic practice goes away from aesthetical experience as empiria and the contemplation and used the notion of experience as experiment and investigation, which dismisses art from her proper functions and brings it rather to aggressive ideology of scientism. The recognition of this progressive change of meanings in founding the art notion of experience has the important consequences both for understanding of present art and for describing it theory.

  17. The Nepal experience.

    Science.gov (United States)

    Kaikobad, N F

    1977-01-01

    Nepal's panchayat system of partyless democracy with 5 class organizations of peasants, youth, women, labor, and ex-servicemen, is an effort in community development. Panchayat training centers train panchayat secretaries and women workers. The government tried out the Mobile Training Scheme (MTS) methodology to train panchayat training center instructors in 1974-75 when 5 courses were given for 76 participants. The MTS methodology included several new assumptions: the necessity of knowing the field situation, a realistic problem solving orientation, learning by actual field experience, and interdependence rather than teacher dependence. The multipurpose role of the panchayat secretary was studied and clarified. Role performance led to the development of a realistic job description from which a task-focused curriculum could be developed. Field work tools included maintaining a daily diary, collecting information and developing a present and past project history, and compiling a village profile. The trainees played the roles of front line workers in the field when they returned from the villages played the roles of supervisors and trainers. The key concept in the multipurpose role of the panchayat secretary was collaboration. The panchayat secretary-trainee had to understand the social roles in the community, and work within the social context to get cooperation from other agencies, village and informal organizations, in order to fulfill their role. Tutorial and team teaching methods were used to provide partnership in learning; the old roles of lecturer and lectured were seen as ineffective when actual field experience was the criteria. The role performing and role analysis group analyzed the front line workers' roles and evolved job descriptions which led to course outlines. The teaching methods and materials group produced indigenous teaching materials for classroom use based on problems faced in the field. The action research and technical collaboration groups

  18. Regional Sociological Research Experience

    Directory of Open Access Journals (Sweden)

    Mikhail Vladimirovich Morev

    2015-11-01

    Full Text Available The article presents the experience of the Institute of Socio-Economic Development of Territories of RAS in conducting sociological research on the territory of the Vologda Oblast and the Northwestern Federal District. It describes the historical aspects of formation of the system for public opinion monitoring and examines its theoretical and methodological foundations. The author of the article analyzes the structure of monitoring indicators and provides a brief interpretation of research findings that reflect social wellbeing and social perception trends. In addition, the paper analyzes people’s attitude toward the activities of federal and regional authorities, trends in social well-being, consumer sentiment and also the complex indicator – the index of public sentiment in the region – developed by ISEDT RAS researchers. The results of sociological studies carried out at ISEDT RAS correlate with the dynamics of the all-Russian public opinion polls conducted by the Institute of Sociology of the Russian Academy of Sciences, the Russian Public Opinion Research Center (VCIOM, Levada-Center, etc. They indicate that Russian society gradually adapts to new conditions of life after the collapse of the USSR. Besides, opinion polls show the most important features of the post-Soviet Russian history at its present stage; they are associated with the intensification of international political relations, the consequences of the “Crimean spring” and the new challenges Russia’s economy is facing now. The article concludes that as global community, of which Russian society is part, is evolving, sociological knowledge begins to play an increasingly important role in administration and national security; this is associated with the greater importance attached to intangible development factors. Therefore, a necessary prerequisite for administration effectiveness in all its stages is to implement the results of sociological research on social

  19. Design Experiments in Educational Research.

    Science.gov (United States)

    Cobb, Paul; Confrey, Jere; diSessa, Andrea; Lehrer, Richard; Schauble, Leona

    2003-01-01

    Indicates the range of purposes and variety of settings in which design experiments have been conducted, delineating five crosscutting features that collectively differentiate design experiments from other methodologies. Clarifies what is involved in preparing for and carrying out a design experiment and in conducting a retrospective analysis of…

  20. Optimal Experience of Web Activities.

    Science.gov (United States)

    Chen, Hsiang; Wigand, R. T.; Nilan, M. S.

    1999-01-01

    Reports on Web users' optimal flow experiences to examine positive aspects of Web experiences that could be linked to theory applied to other media and then incorporated into Web design. Discusses the use of content-analytic procedures to analyze open-ended questionnaires that examined Web users' perceived flow experiences. (Author/LRW)

  1. Experiments for a Special Day

    Science.gov (United States)

    Gluck, Paul

    2008-01-01

    Special events like science days, teacher's meetings and physics recruiting efforts require spectacular and, if possible, interactive experiments for the audience. Based on past experience with such events, we have gathered and present here a series of demonstration experiments in mechanics, optics, waves and electricity which are suitable, and…

  2. Innovative Science Experiments Using Phoenix

    Science.gov (United States)

    Kumar, B. P. Ajith; Satyanarayana, V. V. V.; Singh, Kundan; Singh, Parmanand

    2009-01-01

    A simple, flexible and very low cost hardware plus software framework for developing computer-interfaced science experiments is presented. It can be used for developing computer-interfaced science experiments without getting into the details of electronics or computer programming. For developing experiments this is a middle path between…

  3. Innovative Science Experiments Using Phoenix

    Science.gov (United States)

    Kumar, B. P. Ajith; Satyanarayana, V. V. V.; Singh, Kundan; Singh, Parmanand

    2009-01-01

    A simple, flexible and very low cost hardware plus software framework for developing computer-interfaced science experiments is presented. It can be used for developing computer-interfaced science experiments without getting into the details of electronics or computer programming. For developing experiments this is a middle path between…

  4. Antihydrogen Experiment Gravity Interferometry Spectroscopy

    CERN Multimedia

    Tietje, I C; Trezzi, D; Dassa, L; Rienacker, B; Khalidova, O; Ferrari, G; Krasnicky, D; Perini, D; Cerchiari, G; Belov, A; Boscolo, I; Sacerdoti, M G; Ferragut, R O; Nedelec, P; Testera, G; Hinterberger, A; Al-qaradawi, I; Malbrunot, C L S; Brusa, R S; Prelz, F; Manuzio, G; Riccardi, C; Fontana, A; Genova, P; Haider, S; Haug, F; Turbabin, A; Castelli, F; Lagomarsino, V E; Doser, M; Penasa, L; Gninenko, S; Cataneo, F; Zenoni, A; Cabaret, L; Comparat, D P; Zmeskal, J; Scampoli, P; Nesteruk, K P; Dudarev, A; Kellerbauer, A G; Mariazzi, S; Fesel, J V; Carraro, C; Zavatarelli, S M

    The AEGIS experiment (Antihydrogen Experiment: Gravity, Interferometry, Spectroscopy) has the aim of carrying out the first measurement of the gravitational interaction of antimatter to a precision of 1%, by applying techniques from atomic physics, laser spectroscopy and interferometry to a beam of antihydrogen atoms. A further goal of the experiment is to carry out spectroscopy of the antihydrogen atoms in flight.

  5. The Brazilian Experience

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, Antonio Carlos S. de

    1998-12-31

    This presentation discusses the technology and experience of Petrobras in the development of deep-water exploitation off the coast of Brazil. The company recently found important oil deposits in waters over 300 m deep in Campos Basin, the main petroleum province in Brazil, located offshore Rio de Janeiro State. It is estimated that 50% of the new discoveries will take place in waters deeper than 1000 m. Unlike other companies, Petrobras made an option to develop its offshore fields by means of sub-sea equipment and floating production units. This was possible mainly because of the characteristics of the reservoirs and the mild environmental conditions in Campos Basin. Petrobras has 288 subsea trees on the seabed, 48 subsea manifolds and 21 floating production units in operation. The company has constantly moved on to deeper and deeper waters and by the end of 1998 a new milestone will be achieved with a Roncador field subsea well at 1853 m. Procap-2000, a strategic research and development corporate programme for ultra-deep water technology, was developed. Other innovations by Petrobras are also discussed. 3 figs.

  6. Lepton Flavour Violation Experiments

    Directory of Open Access Journals (Sweden)

    F. Cei

    2014-01-01

    Full Text Available Lepton Flavour Violation in the charged lepton sector (CLFV is forbidden in the Minimal Standard model and strongly suppressed in extensions of the model to include finite neutrino mixing. On the other hand, a wide class of Supersymmetric theories, even coupled with Grand Unification models (SUSY-GUT models, predict CLFV processes at a rate within the reach of new experimental searches operated with high resolution detectors at high intensity accelerators. As the Standard model background is negligible, the observation of one or more CLFV events would provide incontrovertible evidence for physics beyond Standard model, while a null effect would severely constrain the set of theory parameters. Therefore, a big experimental effort is currently (and will be for incoming years accomplished to achieve unprecedented sensitivity on several CLFV processes. In this paper we review past and recent results in this research field, with focus on CLFV channels involving muons and tau's. We present currently operating experiments as well as future projects, with emphasis laid on how sensitivity enhancements are accompanied by improvements on detection techniques. Limitations due to systematic effects are also discussed in detail together with the solutions being adopted to overcome them.

  7. VISIR: Experiences and Challenges

    Directory of Open Access Journals (Sweden)

    Mohamed Tawfik

    2012-02-01

    Full Text Available It is of crucial importance the integration of practical sessions in engineering curricula owing to their significant role in understanding engineering concepts and scientific phenomena. However, the lack of practical sessions due to the high costs of the equipment and the unavailability of instructors has caused a significant declination in experimentation in engineering education. Remote laboratories have tackled this issues providing online reusable and shared workbenches unconstrained by neither geographical nor time considerations. Thereby, they have extremely proliferated among universities and integrated into engineering curricula over the last decade. This contribution compiles diverse experiences based on the deployment of the remote laboratory, Virtual Instrument Systems in Reality (VISIR, on the practices of undergraduate engineering grades at various universities within the VISIR community. It aims to show the impact of its usage on engineering education concerning the assessments of students and teachers as well. In addition, the paper address the next challenges and future works carried out at several universities within the VISIR community.

  8. [Experience in overlay tympanoplasty].

    Science.gov (United States)

    Peng, Ben-gang; Miao, Xu-tao; Wang, Xin; Sun, Yi-qing; Liu, Zhi-ying; Li, Yong-xin

    2009-05-01

    To explore the experience and value of overlay tympanoplasty. Sixty-three ears with overlay tympanoplasty were reviewed and followed up for the external auditory canal, tympanic membrane and hearing. The diseases of the patients included middle ear cholesteatoma in 25 ears and chronic suppurative otitis media in 38 ears. The surgical techniques involved three kinds: overlay tympanoplasty, overlay tympanoplasty with canal wall up mastoidectomy and overlay tympanoplasty with canal wall down mastoidectomy. In middle ear cholesteatoma and suppurative otitis media patients, the case received the three techniques are 4, 17, 4 ears and 19, 18, 1 ears respectively. All patients gained stage I incision cure. Followed up for 0.5 to 3.5 years respectively, the external auditory canal was wide and tympanic membrane gained a good shape. The hearing in all case kept intact or increased while hearing decrease did not occur. Complications were free in patients with punctual visit. Overlay tympanoplasty has positive significance in treating the chronic otitis media with the merits of standard procedure, sufficient operative field and thorough erosion elimination.

  9. Experiments on Paint Rheology

    Science.gov (United States)

    Hartranft, Thomas J.; Settles, Gary S.

    1998-11-01

    We seek a better understanding of the atomization of paints for purposes of limiting the environmental impact of spray painting. However, to do so one must confront both the shear and extensional rheology of mobile non-Newtonian fluids whose very composition is often complex and even unknown. A conventional Couette rheometer yields data on paint shear behavior, but no commercial instrument is available to measure the extensional viscosity, which is believed to govern ligamentary breakup in spray painting. Here a converging-flow extensional rheometer has been built for this purpose. Flow rate and orifice pressure drop are measured and related to the rheological properties of the fluid. At first, experience was gained by visualizing in this device the flow of clear aqueous solutions of both Newtonian (glycerol) and non-Newtonian (polyacrylamide) thickeners. Commercial latex and marine paints were then tested, with the goal of characterizing their extensional behavior and the hope that they might be replaceable by simpler aqueous rheological "substitute" fluids insofar as their atomization behavior is concerned. (Research supported by the US Navy via the Penn State Applied Research Laboratory.)

  10. The LOPES experiment

    Energy Technology Data Exchange (ETDEWEB)

    Link, Katrin, E-mail: katrin.link@kit.edu [Karlsruhe Institute of Technology (KIT), Institut fuer Experimentelle Kernphysik, 76021 Karlsruhe (Germany); Apel, W.D. [Karlsruhe Institute of Technology (KIT) - Campus North, Institut fuer Kernphysik (Germany); Arteaga, J.C. [Karlsruhe Institute of Technology (KIT), Institut fuer Experimentelle Kernphysik, 76021 Karlsruhe (Germany); Asch, T. [Karlsruhe Institute of Technology (KIT) - Campus North, Institut fuer Prozessdatenverarbeitung und Elektronik (Germany); Baehren, L. [Radboud University Nijmegen, Department of Astrophysics (Netherlands); Bekk, K. [Karlsruhe Institute of Technology (KIT) - Campus North, Institut fuer Kernphysik (Germany); Bertaina, M. [Dipartimento di Fisica Generale dell' Universita Torino (Italy); Biermann, P.L. [Max-Planck-Institut fuer Radioastronomie Bonn (Germany); Bluemer, J. [Karlsruhe Institute of Technology (KIT), Institut fuer Experimentelle Kernphysik, 76021 Karlsruhe (Germany); Karlsruhe Institute of Technology (KIT) - Campus North, Institut fuer Kernphysik (Germany); Bozdog, H. [Karlsruhe Institute of Technology (KIT) - Campus North, Institut fuer Kernphysik (Germany); Brancus, I.M. [National Institute of Physics and Nuclear Engineering, Bucharest (Romania); Buchholz, P. [Universitaet Siegen, Fachbereich Physik (Germany); Buitink, S. [Radboud University Nijmegen, Department of Astrophysics (Netherlands); Cantoni, E. [Dipartimento di Fisica Generale dell' Universita Torino (Italy); INAF Torino, Istituto di Fisica dello Spazio Interplanetario (Italy); Chiavassa, A. [Dipartimento di Fisica Generale dell' Universita Torino (Italy); Daumiller, K. [Karlsruhe Institute of Technology (KIT) - Campus North, Institut fuer Kernphysik (Germany); Souza, V. de [Karlsruhe Institute of Technology (KIT), Institut fuer Experimentelle Kernphysik, 76021 Karlsruhe (Germany); Doll, P.; Engel, R. [Karlsruhe Institute of Technology (KIT) - Campus North, Institut fuer Kernphysik (Germany)

    2011-03-15

    Cosmic ray particles hit the Earth's atmosphere and induce extensive air showers (EAS). These EAS mainly consist of electrons and positrons that produce radio emission due to their interaction with the Earth's magnetic field. Measuring this radio emission is the purpose of the LOPES (LOFAR Prototype Station) experiment. LOPES is located at Campus North of the Karlsruhe Institute of Technology at the same site as the EAS particle detector KASCADE-Grande. Since the first measurements in 2003, LOPES was improved by various experimental setups and could establish the radio technique. By now, detailed studies of the measured radio signal are performed, like the behaviour of the lateral distribution or the polarization of the electric field. Furthermore, with LOPES the dependence of the radio pulse on properties of the incoming cosmic ray, like primary energy, primary mass, or incoming direction is investigated. In this article we describe the different LOPES setups, next we explain our standard analysis procedure and then we discuss some highlights of our recent results.

  11. Single-nucleon experiments

    Energy Technology Data Exchange (ETDEWEB)

    Deur, Alexandre

    2009-12-01

    We discuss the Jefferson Lab low momentum transfer data on moments of the nucleon spin structure functions $g_1$ and $g_2$ and on single charged pion electroproduction off polarized proton and polarized neutron. A wealth of data is now available, while more is being analyzed or expected to be taken in the upcoming years. Given the low momentum transfer selected by the experiments, these data can be compared to calculations from Chiral Perturbation theory, the effective theory of strong force that should describe it at low momentum transfer. The data on various moments and the respective calculations do not consistently agree. In particular, experimental data for higher moments disagree with the calculations.The absence of contribution from the $\\Delta$ resonance in the various observables was expected to facilitate the calculations and hence make the theory predictions either more robust or valid over a larger $Q^2$ range. Such expectation is verified only for the Bjorken sum, but not for other observables in which the $\\Delta$ is suppressed. Preliminary results on pion electroproduction off polarized nucleons are also presented and compared to phenomenological models for which contributions from different resonances are varied. Chiral Perturbation calculations of these observables, while not yet available, would be valuable and, together with these data, would provide an extensive test of the effective theory.

  12. Gathering positive experience

    CERN Multimedia

    2009-01-01

    Last Monday, the new CERN Machine Advisory Committee (CMAC) met for the first time, and we had good news to tell its members. Over the weekend, injection tests for both LHC beams were successfully carried out. In other words, we’ve had beam in the LHC for the first time since September 2008. That’s a good feeling, but it’s no reason for complacency. There’s still a long way to go before first physics at the new energy frontier. As the Bulletin has reported over recent weeks, we’re gathering a lot of positive experience with the new quench detection and protection system (QPS), which is already allowing us to monitor the LHC far better than we were able to in the past. So far, the QPS for three of the LHC’s eight sectors has been put through its paces, and we’ve also power tested those sectors to 2000 amperes, the equivalent of around 1.2 TeV per beam. The next step is to slowly increase the current to 4000 amperes, and...

  13. My experience in arbitration

    Directory of Open Access Journals (Sweden)

    Claude Witz

    2011-12-01

    Full Text Available This paper deals with the nature of arbitration as one of the alternatives in dispute resolution processes different from mediation and conciliation, and obviously, from judicial adjudication. Unlike a mediator or a conciliator, an arbitrator is empowered to pass a judgement, like a court. In other words, the arbitrator will render a decision which is binding for the parties. The arbitrator has the jurisdictio, like a judge. Although the office of a judge and an arbitrator is the same, the source of their power is different. The judge’s power originates from a State, whereas the power of the arbitrator results primarily from a contract. Unlike the court, the arbitrator lacks the imperium, i.e. the power to make the award enforceable. When a party refuses to enforce the award, enforceability can only be provided by the judge or an authority of the state where the award has to be enforced. In a certain sense the state thus provides the back up for the arbitration system. This paper presents personal thoughts drawn from the author’s professional experience as an arbitrator in Franco-German disputes.

  14. Experiments for WAAM Technologies

    Directory of Open Access Journals (Sweden)

    Ghenghea Laurentiu Dan

    2017-01-01

    Full Text Available The most recent group of technologies added to Additive Manufacturing (AM field, Wire and Arc Additive Manufacturing (WAAM use some well known welding processes, generally gas metal arc welding (GMAW codification at American Welding Society and 135 at International Institute of Welding/Institute International de Soudure or Tungsten Inert Gas to manufacture products used in top ranged production field like aeronautics. Remarkable results in this new method for industrial production have been achieved by research groups from Cranfield, Delft and many other universities around the world and were published in prestigious research journals. Together with our students from Welding Engineering Program and our limited resources for powerful researches an approach to these new working technologies have been done and our main objective was to show that strong researches could be done with more resources during masters or doctoral studies. In this proposed paper some experiments with shielded metal arc welding process will be presented which have been done to investigate what are the internal structure of welded products made when bead over bead have been deposed, also will be presented some hardness tests of manufactured structure and machining tests for milling process.

  15. Enalapril worldwide experience.

    Science.gov (United States)

    Davies, R O; Irvin, J D; Kramsch, D K; Walker, J F; Moncloa, F

    1984-08-20

    Overall, the worldwide experience on enalapril to date is very encouraging. The drug produces good to excellent responses in 54 to 66 percent of patients with essential hypertension and is at least as effective as either diuretics or beta blockers. The effects of enalapril compared with those of diuretics confirm that patients more dependent upon the renin-angiotensin system respond better. When hydrochlorothiazide is administered concomitantly with enalapril, almost all patients respond, with good long-term maintenance. In patients with severe hypertension, Blocadren or Aldomet may be added in addition to hydrochlorothiazide and will produce additional benefit. Enalapril attenuates the adverse metabolic effects of hydrochlorothiazide, particularly hypokalemia. Overall, although the efficacy of enalapril and that of captopril are similar, enalapril is better tolerated and does not appear to be associated with any significant occurrence of captopril-type side effects, particularly the skin rash and loss of taste. As expected, enalapril and other converting inhibitors may be associated with azotemia in patients with bilateral renovascular hypertension.

  16. [Worldwide experience with enalapril].

    Science.gov (United States)

    Davies, R O; Irvin, J D; Kramsch, D K; Walker, J F; Moncloa, F

    1985-12-19

    Up to now, the experiments carried out throughout the world with enalapril have been most encouraging. The drug gives good, even excellent responses in 54 to 66 % of patients with essential hypertension, and it is at least as effective as diuretics and beta-blockers. Compared with those of diuretics, the effects of enalapril confirm that the best responders are those patients who are most dependent on the renin-angiotensin system. When a diuretic is administered concomitantly with enalapril, almost all patients respond and the therapeutic effect is well maintained in long term. Blocadren or alpha-methyldopa can be added to hydrochlorothiazide, thus providing additional benefits to patients with severe hypertension. Enalapril reduces the undesirable metabolic effects of hydrochlorothiazide, particularly hypokalaemia. Altogether, enalapril and captopril have similar effectiveness, but enalapril is better tolerated and does not seem to produce the side-effects encountered with captopril, notably skin rashes and ageusia. As expected, enalapril and other angiotensin-converting enzyme inhibitors may be associated with azotaemia in patients with bilateral renovascular hypertension.

  17. Young students experience theory

    CERN Document Server

    2004-01-01

    Three sixteen-year-old students from the International School of Geneva, La Chataigneraie have spent a week finding out about the life of a theoretical physicist at CERN. Student Peter Bishop at the blackboard with Robert Fleischer of Theory Division. Peter Bishop, Sam Schoenholz and Alexander Hultin spent the time with the Theory Unit of the Physics department. The visit was at the suggestion of the students themselves, who are required to undertake work experience at an organization, gaining insights into professional life, as part of their studies. After an introduction to CERN at Microcosm, each student had the opportunity to learn about physics at a level well beyond their current academic training. They were mentored by theoretical physicists who introduced them to the basics of particle physics, discussing physics in general as well as topics such as predicting the mass of the Higgs boson and cosmology. A visit to CMS, guided by Ariane Frey, proved very impressive, but the working conditions of physi...

  18. A moving experience !

    CERN Multimedia

    2005-01-01

    The Transport Service pulled out all the stops and, more specifically, its fleet of moving and lifting equipment for the Discovery Monday on 6 June - a truly moving experience for all the visitors who took part ! Visitors could play at being machine operator, twiddling the controls of a lift truck fitted with a jib to lift a dummy magnet into a wooden mock-up of a beam-line.They had to show even greater dexterity for this game of lucky dip...CERN-style.Those with a head for heights took to the skies 20 m above ground in a telescopic boom lift.Children were allowed to climb up into the operator's cabin - this is one of the cranes used to move the LHC magnets around. Warm thanks to all members of the Transport Service for their participation, especially B. Goicoechea, T. Ilkei, R. Bihery, S. Prodon, S. Pelletier, Y. Bernard, A.  Sallot, B. Pigeard, S. Guinchard, B. Bulot, J. Berrez, Y. Grandjean, A. Bouakkaz, M. Bois, F. Stach, T. Mazzarino and S. Fumey.

  19. Visual experiences during paralysis

    Directory of Open Access Journals (Sweden)

    Emma M Whitham

    2011-12-01

    Full Text Available RationaleParalysed human volunteers (n=6 participated in an electroencephalographic study after which they undertook studies of attempted eye movement. The interventions tested a central, intentional component to one’s internal visual model.Methods Six subjects reclined in a supported chair and were ventilated after paralysis (cisatracurium, 20 mg intravenously. In illumination, subjects were requested to focus alternately on the faces of investigators standing on the left and the right within peripheral vision. In darkness, subjects were instructed to look away from a point source of light. Subjects were to report their experiences after reversal of paralysis.Results During attempted eye movement in illumination, one subject had an illusion of environmental movement but four subjects perceived faces as clearly as if they were in central vision. In darkness, four subjects reported movement of the target light in the direction of attempted eye movements and three could control the movement of the light at will. ConclusionThe hypothesis that internal visual models receive intended ocular-movement-information directly from oculomotor centres is strengthened by this evidence.

  20. Joint collaborative technology experiment

    Science.gov (United States)

    Wills, Michael; Ciccimaro, Donny; Yee, See; Denewiler, Thomas; Stroumtsos, Nicholas; Messamore, John; Brown, Rodney; Skibba, Brian; Clapp, Daniel; Wit, Jeff; Shirts, Randy J.; Dion, Gary N.; Anselmo, Gary S.

    2009-05-01

    Use of unmanned systems is rapidly growing within the military and civilian sectors in a variety of roles including reconnaissance, surveillance, explosive ordinance disposal (EOD), and force-protection and perimeter security. As utilization of these systems grows at an ever increasing rate, the need for unmanned systems teaming and inter-system collaboration becomes apparent. Collaboration provides a means of enhancing individual system capabilities through relevant data exchange that contributes to cooperative behaviors between systems and enables new capabilities not possible if the systems operate independently. A collaborative networked approach to development holds the promise of adding mission capability while simultaneously reducing the workload of system operators. The Joint Collaborative Technology Experiment (JCTE) joins individual technology development efforts within the Air Force, Navy, and Army to demonstrate the potential benefits of interoperable multiple system collaboration in a force-protection application. JCTE participants are the Air Force Research Laboratory, Materials and Manufacturing Directorate, Airbase Technologies Division, Force Protection Branch (AFRL/RXQF); the Army Aviation and Missile Research, Development, and Engineering Center Software Engineering Directorate (AMRDEC SED); and the Space and Naval Warfare Systems Center - Pacific (SSC Pacific) Unmanned Systems Branch operating with funding provided by the Joint Ground Robotics Enterprise (JGRE). This paper will describe the efforts to date in system development by the three partner organizations, development of collaborative behaviors and experimentation in the force-protection application, results and lessons learned at a technical demonstration, simulation results, and a path forward for future work.

  1. Beam and experiments: summary

    Energy Technology Data Exchange (ETDEWEB)

    Blondel, A.; Bueno, A.; Campanelli, M.; Cervera, A.; Cline, D.B.; Collot, J.; Jong, M. de; Donini, A.; Dydak, F. E-mail: friedrich.dydak@cern.ch; Edgecock, R.; Gavela, M.B.; Gomez-Cadenas, J.J.; Gonzalez-Garcia, M.C.; Gruber, P.; Harris, D.A.; Hernandez, P.; Kuno, Y.; Litchfield, P.J.; McFarland, K.; Mena, O.; Migliozzi, P.; Palladino, V.; Panman, J.; Papadopoulos, I.M.; Para, A.; Pena-Garay, C.; Perez, P.; Rigolin, S.; Romanino, A.; Rubbia, A.; Strolin, P.; Wojcicki, S

    2000-08-21

    The discovery of neutrino oscillations marks a major milestone in the history of neutrino physics, and opens a new window to the still mysterious origin of masses and flavour mixing. Many current and forthcoming experiments will answer open questions; however, a major step forward, up to and possibly including CP violation in the neutrino-mixing matrix, requires the neutrino beams from a neutrino factory. The neutrino factory is a new concept for producing neutrino beams of unprecedented quality in terms of intensity, flavour composition, and precision of the beam parameters. Most importantly, the neutrino factory is the only known way to generate a high-intensity beam of electron neutrinos of high energy. The neutrino beam from a neutrino factory, in particular the electron-neutrino beam, enables the exploration of otherwise inaccessible domains in neutrino oscillation physics by exploiting baselines of planetary dimensions. Suitable detectors pose formidable challenges but seem within reach with only moderate extrapolations from existing technologies. Although the main physics attraction of the neutrino factory is in the area of neutrino oscillations, an interesting spectrum of further opportunities ranging from high-precision, high-rate neutrino scattering to physics with high-intensity stopped muons comes with it.

  2. Nordic Snow Radar Experiment

    Science.gov (United States)

    Lemmetyinen, Juha; Kontu, Anna; Pulliainen, Jouni; Vehviläinen, Juho; Rautiainen, Kimmo; Wiesmann, Andreas; Mätzler, Christian; Werner, Charles; Rott, Helmut; Nagler, Thomas; Schneebeli, Martin; Proksch, Martin; Schüttemeyer, Dirk; Kern, Michael; Davidson, Malcolm W. J.

    2016-09-01

    The objective of the Nordic Snow Radar Experiment (NoSREx) campaign was to provide a continuous time series of active and passive microwave observations of snow cover at a representative location of the Arctic boreal forest area, covering a whole winter season. The activity was a part of Phase A studies for the ESA Earth Explorer 7 candidate mission CoReH2O (Cold Regions Hydrology High-resolution Observatory). The NoSREx campaign, conducted at the Finnish Meteorological Institute Arctic Research Centre (FMI-ARC) in Sodankylä, Finland, hosted a frequency scanning scatterometer operating at frequencies from X- to Ku-band. The radar observations were complemented by a microwave dual-polarization radiometer system operating from X- to W-bands. In situ measurements consisted of manual snow pit measurements at the main test site as well as extensive automated measurements on snow, ground and meteorological parameters. This study provides a summary of the obtained data, detailing measurement protocols for each microwave instrument and in situ reference data. A first analysis of the microwave signatures against snow parameters is given, also comparing observed radar backscattering and microwave emission to predictions of an active/passive forward model. All data, including the raw data observations, are available for research purposes through the European Space Agency and the Finnish Meteorological Institute. A consolidated dataset of observations, comprising the key microwave and in situ observations, is provided through the ESA campaign data portal to enable easy access to the data.

  3. Results from LHCf Experiment

    Directory of Open Access Journals (Sweden)

    Tricomi Alessia

    2012-06-01

    Full Text Available The LHCf experiment has taken data in 2009 and 2010 p-p collisions at LHC at √s = 0.9 TeV and √s = 7 TeV. The measurement of the forward neutral particle spectra produced in proton-proton collisions at LHC up to an energy of 14 TeV in the center of mass system are of fundamental importance to calibrate the Monte Carlo models widely used in the high energy cosmic ray (HECR field, up to an equivalent laboratory energy of the order of 1017 eV. In this paper the first results on the inclusive photon spectrum measured by LHCf is reported. Comparison of this spectrum with the model expectations show significant discrepancies, mainly in the high energy region. In addition, perspectives for future analyses as well as the program for the next data taking period, in particular the possibility to take data in p-Pb collisions, will be discussed.

  4. The CAPTAIN Experiment

    CERN Document Server

    Bian, Jianming

    2015-01-01

    The Cryogenic Apparatus for Precision Tests of Argon Interactions with Neutrinos (CAPTAIN) program is designed to make measurements of scientific importance to long-baseline neutrino physics and physics topics that will be explored by large underground detectors. The experiment employs two liquid Argon time projection chambers (LArTPCs), a primary detector with a mass of approximately 10 ton that will be deployed at different facilities for physics measurements and a two ton prototype detector for configuration testing. The physics programs for CAPTAIN include measuring neutron interactions at the Los Alamos Neutron Science Center, measuring neutrino interactions in the high-energy regime (1.5-5 GeV) at Fermilab NuMI beam, and measuring neutrino interactions in the low-energy regime (<50 MeV) at stopped pion sources for supernova neutrino studies. The prototype detector (Mini-CAPTAIN) has been commissioned and the first UV laser track has been seen in its TPC. This paper gives an overview of the CAPTAIN pr...

  5. Use experience of FLUKA

    Energy Technology Data Exchange (ETDEWEB)

    Nakashima, Hiroshi [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    1998-03-01

    In order to conduct the shield design calculation of the Large Hadron Collider (LHC) under planning in CERN at present, the radiation group of CERN uses FLUKA (Monte Carlo High Energy Radiation Transport Code). Here is introduced on outline of FLUKA and use experience of FLUKA in the LHC-B detector shield design calculation in LHC plan. FLUKA can be said to be the highest standard in the high energy radiation transportation code of the world at every points of the physical model, the Monte Carlo calculation technique and the convenience at usage of the code. In Japan Atomic Energy Research Institute (JAERI), a using right of FLUKA for the target neutronics and facility shielding design at the neutron science research center is obtained and it seems to be an effective design means in these future designs. However, because FLUKA is allowed a limited opening and no own verification on the code, it will be supposed to be a large problem on investigating a validity in design. (K.G.)

  6. L3 + Cosmics Experiment

    CERN Multimedia

    2002-01-01

    %RE4 %title\\\\ \\\\The L3+C experiment takes advantage of the unique properties of the L3 muon spectrometer to get an accurate measurement of cosmic ray muons 30 m underground. A new muon trigger, readout and DAQ system have been installed, as well as a scintillator array covering the upper surfaces of the L3 magnet for timing purposes. The acceptance amounts to 200 $m^2 sr$. The data are collected independently in parallel with L3 running. In spring 2000 a scintillator array will be installed on the roof of the SX hall in order to estimate the primary energy of air showers associated with events observed in L3+C.\\\\ \\\\The cosmic ray muon momentum spectrum, the zenith angular dependence and the charge ratio are measured with high accuracy between 20 and 2000 GeV/c. The results will provide new information about the primary composition, the shower development in the atmosphere, and the inclusive pion and kaon (production-) cross sections (specifically the "$\\pi$/K ratio") at high energies. These data will also hel...

  7. Enthusiastic Teachers, Vivid Experiments

    Science.gov (United States)

    Moore, John W.

    2000-04-01

    ascination with materials and chemical change is a hallmark of chemists, and it is also an important pedagogical tool. A fringe benefit of editing JCE is that I encounter so many nice people who send interesting and helpful communications. One of the first of these to cross my desk this year was from E. J. Behrman, who recommended that I read and call to your attention "Brilliant Light: A Chemical Boyhood" by Oliver Sacks, noted neurologist and author. It appeared in the December 20, 1999, issue of The New Yorker and is well worth your time and effort to find and read. Sacks's reminiscence of his boyhood interest in chemistry is fascinating. His obvious love of our science is inspiring. And he has expressed both in words that are brilliantly chosen and a joy to read. In a profile of Sacks that appeared in Chemical and Engineering News (January 10, 2000), Madeleine Jacobs relates that he is writing a book on his boyhood encounters with chemistry (to be published by Alfred A. Knopf). I am looking forward to that with great anticipation. During 1999 he also wrote an article on the periodic table in the New York Times Magazine (April 18) and an op-ed piece on chemistry sets in the New York Times (May 13). In the latter he describes how hard it is these days for a nonchemist, especially a young one, to obtain chemicals to experiment with. Chemistry sets are not what they used to be! Sacks's writings contain important messages for all of us who teach chemistry and all who are involved in piquing students' interest in our subject. A brief excerpt from his New Yorker article illustrates my point. I knew zinc--the dull, slightly bluish birdbath in the garden was made of zinc--and tin, from the heavy tinfoil in which sandwiches were wrapped for a picnic. My mother showed me that when tin or zinc was bent it uttered a special "cry." "It's due to deformation of the crystal structure," she said, forgetting that I was five and could not understand her--and yet her words made me

  8. Mapping Bicyclists’ Experiences in Copenhagen

    DEFF Research Database (Denmark)

    Snizek, Bernhard; Nielsen, Thomas Alexander Sick; Skov-Petersen, Hans

    , centrality, and environmental amenities indicates that positive experiences, or the absence of negative experiences, are clearly related to the presence of en-route cycling facilities, and attractive nature environments within a short distance of large water bodies or green edges along the route.......This paper presents an approach to the collection, mapping, and analysis of cyclists’ experiences. By spatially relating located experiences to the availability of bicycle facilities and other aspects of the urban environment, their influence on cyclists’ experiences can be analysed. 398 cyclists...

  9. Mapping bicyclists’ experiences in Copenhagen

    DEFF Research Database (Denmark)

    Snizek, Bernhard; Sick Nielsen, Thomas Alexander; Skov-Petersen, Hans

    2013-01-01

    , centrality, and environmental amenities indicates that positive experiences, or the absence of negative experiences, are clearly related to the presence of en-route cycling facilities, and attractive nature environments within a short distance of large water bodies or green edges along the route.......This paper presents an approach to the collection, mapping, and analysis of cyclists’ experiences. By spatially relating located experiences to the availability of bicycle facilities and other aspects of the urban environment, their influence on cyclists’ experiences can be analysed. 398 cyclists...

  10. Welcome to the experience economy.

    Science.gov (United States)

    Pine, B J; Gilmore, J H

    1998-01-01

    First there was agriculture, then manufactured goods, and eventually services. Each change represented a step up in economic value--a way for producers to distinguish their products from increasingly undifferentiated competitive offerings. Now, as services are in their turn becoming commoditized, companies are looking for the next higher value in an economic offering. Leading-edge companies are finding that it lies in staging experiences. To reach this higher level of competition, companies will have to learn how to design, sell, and deliver experiences that customers will readily pay for. An experience occurs when a company uses services as the stage--and goods as props--for engaging individuals in a way that creates a memorable event. And while experiences have always been at the heart of the entertainment business, any company stages an experience when it engages customers in a personal, memorable way. The lessons of pioneering experience providers, including the Walt Disney Company, can help companies learn how to compete in the experience economy. The authors offer five design principles that drive the creation of memorable experiences. First, create a consistent theme, one that resonates throughout the entire experience. Second, layer the theme with positive cues--for example, easy-to-follow signs. Third, eliminate negative cues, those visual or aural messages that distract or contradict the theme. Fourth, offer memorabilia that commemorate the experience for the user. Finally, engage all five senses--through sights, sounds, and so on--to heighten the experience and thus make it more memorable.

  11. Volunteers in the experience economy

    DEFF Research Database (Denmark)

    Gudiksen, Sune Klok

    2012-01-01

    and discussed. The Questions addressed is how to enlist, motivate and reward volunteers a long the way and how to manage and guide volunteers. Furthermore what kind of special relationship does the volunteer have in the making of the experience design and in the experience of that design. This paper combines......The use of volunteers is becoming more visible and important in the experience economy also in the light of the financial crisis. From a management perspective within both public and private organizations the use of volunteers is an important element partly because they strengthen the brand...... economy volunteers create a new set of dimensions, because they shift between being part of the experience producer and being one of the experience consumers. Volunteers are becoming increasingly more important in the experience economy as they contribute to the overall experience for users or customers...

  12. Touch massage, a rewarding experience.

    Science.gov (United States)

    Lindgren, Lenita; Jacobsson, Maritha; Lämås, Kristina

    2014-12-01

    This study aims to describe and analyze healthy individuals' expressed experiences of touch massage (TM). Fifteen healthy participants received whole body touch massage during 60 minutes for two separate occasions. Interviews were analyzed by narrative analysis. Four identifiable storyline was found, Touch massage as an essential need, in this storyline the participants talked about a desire and need for human touch and TM. Another storyline was about, Touch massage as a pleasurable experience and the participants talked about the pleasure of having had TM. In the third storyline Touch massage as a dynamic experience, the informants talked about things that could modulate the experience of receiving TM. In the last storyline, Touch massage influences self-awareness, the participants described how TM affected some of their psychological and physical experiences. Experiences of touch massage was in general described as pleasant sensations and the different storylines could be seen in the light of rewarding experiences. © The Author(s) 2014.

  13. Physical experience enhances science learning.

    Science.gov (United States)

    Kontra, Carly; Lyons, Daniel J; Fischer, Susan M; Beilock, Sian L

    2015-06-01

    Three laboratory experiments involving students' behavior and brain imaging and one randomized field experiment in a college physics class explored the importance of physical experience in science learning. We reasoned that students' understanding of science concepts such as torque and angular momentum is aided by activation of sensorimotor brain systems that add kinetic detail and meaning to students' thinking. We tested whether physical experience with angular momentum increases involvement of sensorimotor brain systems during students' subsequent reasoning and whether this involvement aids their understanding. The physical experience, a brief exposure to forces associated with angular momentum, significantly improved quiz scores. Moreover, improved performance was explained by activation of sensorimotor brain regions when students later reasoned about angular momentum. This finding specifies a mechanism underlying the value of physical experience in science education and leads the way for classroom practices in which experience with the physical world is an integral part of learning. © The Author(s) 2015.

  14. Mapping bicyclists’ experiences in Copenhagen

    DEFF Research Database (Denmark)

    Snizek, Bernhard; Sick Nielsen, Thomas Alexander; Skov-Petersen, Hans

    2013-01-01

    This paper presents an approach to the collection, mapping, and analysis of cyclists’ experiences. By spatially relating located experiences to the availability of bicycle facilities and other aspects of the urban environment, their influence on cyclists’ experiences can be analysed. 398 cyclists...... responded and sketched their most recent cycle route and a total of 890 points to locations along the route where they had had positive and negative cycling experiences. The survey was implemented as an online questionnaire built on Google Maps, and allowed up to three positive and three negative experience...... to the potential promotion of positive or negative experiences. Further, the method might be applied to assess the effect of proposed changes to the urban design in terms of cyclists’ experiences.Statistical analysis of the location attributes, traffic environments and conflicts, bicycle facilities, urban density...

  15. Materials science experiments in space

    Science.gov (United States)

    Gelles, S. H.; Giessen, B. C.; Glicksman, M. E.; Margrave, J. L.; Markovitz, H.; Nowick, A. S.; Verhoeven, J. D.; Witt, A. F.

    1978-01-01

    The criteria for the selection of the experimental areas and individual experiments were that the experiment or area must make a meaningful contribution to the field of material science and that the space environment was either an absolute requirement for the successful execution of the experiment or that the experiment can be more economically or more conveniently performed in space. A number of experimental areas and individual experiments were recommended for further consideration as space experiments. Areas not considered to be fruitful and others needing additional analysis in order to determine their suitability for conduct in space are also listed. Recommendations were made concerning the manner in which these materials science experiments are carried out and the related studies that should be pursued.

  16. Galileo Ultraviolet Spectrometer experiment

    Science.gov (United States)

    Hord, C. W.; Mcclintock, W. E.; Stewart, A. I. F.; Barth, C. A.; Esposito, L. W.; Thomas, G. E.; Sandel, B. R.; Hunten, D. M.; Broadfoot, A. L.; Shemansky, D. E.

    1992-01-01

    The Galileo ultraviolet spectrometer experiment uses data obtained by the Ultraviolet Spectrometer (UVS) mounted on the pointed orbiter scan platform and from the Extreme Ultraviolet Spectrometer (EUVS) mounted on the spinning part of the orbiter with the field of view perpendicular to the spin axis. The UVS is a Ebert-Fastie design that covers the range 113-432 nm with a wavelength resolution of 0.7 nm below 190 and 1.3 nm at longer wavelengths. The UVS spatial resolution is 0.4 deg x 0.1 deg for illuminated disk observations and 1 deg x 0.1 deg for limb geometries. The EUVS is a Voyager design objective grating spectrometer, modified to cover the wavelength range from 54 to 128 nm with wavelength resolution 3.5 nm for extended sources and 1.5 nm for point sources and spatial resolution of 0.87 deg x 0.17 deg. The EUVS instrument will follow up on the many Voyager UVS discoveries, particularly the sulfur and oxygen ion emissions in the Io torus and molecular and atomic hydrogen auroral and airglow emissions from Jupiter. The UVS will obtain spectra of emission, absorption, and scattering features in the unexplored, by spacecraft, 170-432 nm wavelength region. The UVS and EUVS instruments will provide a powerful instrument complement to investigate volatile escape and surface composition of the Galilean satellites, the Io plasma torus, micro- and macro-properties of the Jupiter clouds, and the composition structure and evolution of the Jupiter upper atmosphere.

  17. NASA Work Experience

    Science.gov (United States)

    Frandsen, Athela F.

    2015-01-01

    I have had the opportunity to support the analytical laboratories in chemical analysis of unknown samples, using Optical Microscopy (OM), Polarizing Light Microscopy (PLM), Fourier-Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEMEDS), and X-ray Powder Diffraction (XPD). I have assisted in characterizing fibers pulled from a spacecraft, a white fibrous residue discovered in a jet refueler truck, brown residue from a plant habitat slated for delivery to the ISS (International Space Station), corrosion on a pipe from a sprinkler, and air filtration material brought back from the ISS. I also conducted my own fiber study in order to practice techniques and further my understanding of background concepts. Furthermore, I had the opportunity to participate in diverse work assignments, where I was assigned to work with other branches of the engineering department for 1-2 days each. The first was in the Materials Science branch where I participated in the construction of the plant habitat intended for use in research aboard the ISS. The second was in the Testing Design branch where I assisted with tensile and hardness testing of over 40 samples. In addition, I have had the privilege to attend multiple tours of the NASA KSC campus, including to the Astronaut Crew Quarters, the VAB (the main area, the Columbia room, and the catwalk), the Visitor Center housing the shuttle Atlantis, the Saturn-V exhibit, the Prototype laboratory, SWAMP WORKS, the Shuttle Landing Facility, the Crawler, and the Booster Fabrication Facility (BFF). Lastly, much of my coursework prepared me for this experience, including numerous laboratory courses with topics diverse as chemistry, physics, and biology.

  18. Spatial dynamics in the experience economy

    DEFF Research Database (Denmark)

    Lorentzen, Anne Birte; Topsø Larsen, Karin; Schrøder, Lise

    2015-01-01

    Introduction. What is the experience economy? The experience economy and innovation. The experience economy and governance. The experience economy, space and place......Introduction. What is the experience economy? The experience economy and innovation. The experience economy and governance. The experience economy, space and place...

  19. SIR-B experiments in Japan. I - Sensor calibration experiment

    Science.gov (United States)

    Ichinose, Masaru; Echizenya, Yoshimatsu; Kamata, Mitsuhiro; Kawai, Eiji; Hiromoto, Norihisa

    1988-03-01

    A sensor calibration experiment was proposed as part of SIR-B experiments in Japan, together with the rice crop experiment and the ocean oil-pollution detection experiment. This sensor calibration experiment was intended (1) to establish a transfer function from image data to radar backscattering characteristics, (2) to evaluate 3-dB resolutions, (3) to verify the ability to resolve two closely-spaced targets, and (4) to clarify sidelobe structures due to range and azimuth compressions. The disused Akita Airport was chosen as the main test site for the calibration experiment on the first three objectives. This paper describes the test site, the design of the corner reflectors, and briefly predicts the results.

  20. Bio-fabrication: Experiments and Experiences in Ethics and Sciences

    OpenAIRE

    Bennett, Gaymon Lamont

    2011-01-01

    Bio-fabrication: Experiments and Experiences in Ethics and Sciences provides an account of an experiment I undertook in ethics and anthropology as part of the International Open Facility Advancing Biotechnology, the BIOFAB. It offers an analysis of the facility's programmatic attempt to actualize a core claim of the new field of synthetic biology: that living beings can be conceived as collections of interoperable genetic components, constructed through rational design, standardized, and fabr...

  1. Wall catalysis experiment on AFE. [Aeroassist Flight Experiments

    Science.gov (United States)

    Stewart, David A.; Kolodziej, Paul

    1988-01-01

    This paper describes the wall catalysis experiment which is planned as part of the Aeroassist Flight experiments (AFE) that will be flown from the Space Shuttle Orbiter in late 1993. Research on candidate high-catalytic efficiency overcoats for the experiment conducted in an arc-jet air stream are discussed. The temperature distribution over the AFE heat shield is also predicted using a reacting boundary layer solution that includes surface kinetics and optical properties determined from these tests.

  2. Undergraduate Research Experiences in Support of Dryland Monitoring: Field and Satellite Remote Sensing of Change in Savanna Structure, Biomass, and Carbon after Prescribed Fires

    Science.gov (United States)

    Washington-Allen, R. A.; Twidwell, D. L., Jr.; Mendieta, V. P.; Delgado, A.; Redman, B.; Trollope, W. S.; Trollope, L.; Govender, N.; Smit, I.; Popescu, S. C.; de Bruno Austin, C.; Reeves, M. C.

    2009-12-01

    The status and trend of degradation in the world’s Drylands, that support over 1.2 billion people, is unknown because monitoring & assessment has not occurred on a globally consistent basis and skilled personnel with a cultivated interest in natural resource science and management are lacking. A major monitoring dataset is the 37-year Landsat data archive that has been released free to the world, but this dataset requires persons who understand how to process and interpret this and similar datasets applicable to the desertification problem. The College of Agriculture & Life Sciences (COALS) at Texas A&M University (TAMU) has an initiative to provide undergraduates with both international and research experiences. The lead author used start-up money, USFS project funds for livestock footprint studies in the US, and seed money from COALS to 1) develop academic mentor contacts in Mozambique, Namibia, Botswana, South Africa, and Tunisia to prepare a National Science Foundation Research Experience for Undergraduates (NSF-REU) Site proposal and 2) launch a pilot REU for two TAMU undergraduate students. Mr. Delgado and Mr. Redman received lidar processing and visualization, field survey training on global positioning systems (GPS), terrestrial LIDAR, and ground penetrating radar technologies and conducted carbon change studies by collecting pre- and post-fire laser scans on experimental burn (EPB) sites in Texas and South Africa. Mr. Redman also developed GIS databases of Landsat timeseries for these EPBs and others in southern Africa. Mr. Delgado participated in the Savanna Fire Ignition Research Experiment (SavFIRE) in Kruger National Park (KNP) by collected laser scan data on 3 EPBs. He also received mentoring from Dr. Winston Trollope, a prominent fire ecologist, and Mr. Chris Austin both of Working with Fire International and Navashni Govender, KNP’s Fire Ecologist. He also was an active participant in a NASA sponsored workshop on remote sensing of global

  3. Sleep paralysis as spiritual experience.

    Science.gov (United States)

    Hufford, David J

    2005-03-01

    This article presents an overview of the sleep paralysis experience from both a cultural and a historical perspective. The robust, complex phenomenological pattern that represents the subjective experience of sleep paralysis is documented and illustrated. Examples are given showing that, for a majority of subjects, sleep paralysis is taken to be a kind of spiritual experience. This is, in part, because of the very common perception of a non-physical 'threatening presence' that is part of the event. Examples from various cultures, including mainstream contemporary America which has no widely known tradition about sleep paralysis, are used to show that the complex pattern and spiritual interpretation are not dependent on cultural models or prior learning. This is dramatically contrary to conventional explanations of apparently 'direct' spiritual experiences, explanations that are summed up as the 'Cultural Source Hypothesis.' This aspect of sleep paralysis was not recognized through most of the twentieth century. The article examines the way that conventional modern views of spiritual experience, combined with medical ideas that labeled 'direct' spiritual experiences as psychopathological, and mainstream religious views of such experiences as heretical if not pathological, suppressed the report and discussion of these experiences in modern society. These views have resulted in confusion in the scientific literature on sleep paralysis with regard to its prevalence and core features. The article also places sleep paralysis in the context of other 'direct' spiritual experiences and offers an 'Experiential Theory' of cross-culturally distributed spiritual experiences.

  4. A Novel Technique for Improving Bodily Experience in a Non-operable Super–Super Obesity Case

    Science.gov (United States)

    Serino, Silvia; Scarpina, Federica; Keizer, Anouk; Pedroli, Elisa; Dakanalis, Antonios; Castelnuovo, Gianluca; Chirico, Alice; Novelli, Margherita; Gaudio, Santino; Riva, Giuseppe

    2016-01-01

    Introduction: The available clinical guidelines for super-super obese patients (i.e., with body mass index (BMI) > 60 kg/m2) that are not suitable for bariatric surgery mandate a palliative multidisciplinary treatment (i.e., production and maintenance of weight loss) provided in a center of excellence. However, the modality and the impact of this approach are still controversial. Moreover, it is not able to address the high level of body dissatisfaction and body distortions that are common among these patients. Clinical Presentation: We report the case of a non-operable super–super obesity – a 37 year old woman with a BMI of 62 kg/m2 – receiving a specialized treatment for her obstructive sleep apnea. She entered a multidisciplinary program that promoted healthy behaviors, including physical activities and psychological intervention. To improve body dissatisfaction, which was linked to a significant multisensory impairment of body perception, she also entered a virtual reality (VR) body-swapping illusion protocol. At the end of the current investigation, the patient continued her multidisciplinary program, reporting an increase in the motivation for undertaking healthy behavior and a decrease in the anxiety feelings associated with her clinical condition. Conclusion: This case provides preliminary evidence that both body dissatisfaction and body-size distortions of non-operable super-super obesity patients could be addressed by a VR body-swapping protocol, which is important because the palliative multidisciplinary treatment recommended for these patients is not able to address them. Interestingly, the use of a VR body-swapping illusion protocol seems to be able to improve not only the experience of the body in these patients but their motivation for change, too. PMID:27378965

  5. Dashboard for the LHC experiments

    Science.gov (United States)

    Andreeva, J.; Belov, S.; Berejnoj, A.; Cirstoiu, C.; Chen, Y.; Chen, T.; Chiu, S.; Miguel, M. D. F. D.; Ivanchenko, A.; Gaidioz, B.; Herrala, J.; Janulis, M.; Kodolova, O.; Maier, G.; Maguire, E. J.; Munro, C.; Rivera, R. P.; Rocha, R.; Saiz, P.; Sidorova, I.; Tsai, F.; Tikhonenko, E.; Urbah, E.

    2008-07-01

    In this paper we present the Experiment Dashboard monitoring system, which is currently in use by four Large Hadron Collider (LHC)[1] experiments. The goal of the Experiment Dashboard is to monitor the activities of the LHC experiments on the distributed infrastructure, providing monitoring data from the virtual organization (VO) and user perspectives. The LHC experiments are using various Grid infrastructures (LCG[2]/EGEE[3], OSG[4], NDGF[5]) with correspondingly various middleware flavors and job submission methods. Providing a uniform and complete view of various activities like job processing, data movement and publishing, access to distributed databases regardless of the underlying Grid flavor is the challenging task. In this paper we will describe the Experiment Dashboard concept, its framework and main monitoring applications.

  6. Innovative science experiments using Phoenix

    Science.gov (United States)

    Kumar, B. P. Ajith; Satyanarayana, V. V. V.; Singh, Kundan; Singh, Parmanand

    2009-09-01

    A simple, flexible and very low cost hardware plus software framework for developing computer-interfaced science experiments is presented. It can be used for developing computer-interfaced science experiments without getting into the details of electronics or computer programming. For developing experiments this is a middle path between push-button systems and the develop-from-scratch approach. Emphasis is on leveraging the power of personal computers for experiment control, data acquisition and the mathematical analysis of data. The language 'Python' is chosen for data acquisition and analysis. This article explains the architecture of Phoenix (Physics with Home-made Equipment and Innovative Experiments) along with some sample experiments. The hardware design is open and the project is totally based on free software.

  7. Volunteers in the experience economy

    DEFF Research Database (Denmark)

    Gudiksen, Sune Klok

    2012-01-01

    The use of volunteers is becoming more visible and important in the experience economy also in the light of the financial crisis. From a management perspective within both public and private organizations the use of volunteers is an important element partly because they strengthen the brand...... and they help in the product development but also because they are seen as a cheap resource. From an employee perspective you often hear that it creates a sense of fear for cuts or loss of professionalism, but can also be seen as a helpful resource and dynamic element in the organization. In the Experience...... economy volunteers create a new set of dimensions, because they shift between being part of the experience producer and being one of the experience consumers. Volunteers are becoming increasingly more important in the experience economy as they contribute to the overall experience for users or customers...

  8. Remembered Experiences and Revisit Intentions

    DEFF Research Database (Denmark)

    Barnes, Stuart; Mattsson, Jan; Sørensen, Flemming

    2016-01-01

    Tourism is an experience-intensive sector in which customers seek and pay for experiences above everything else. Remembering past tourism experiences is also crucial for an understanding of the present, including the predicted behaviours of visitors to tourist destinations. We adopt a longitudinal...... approach to memory data collection from psychological science, which has the potential to contribute to our understanding of tourist behaviour. In this study, we examine the impact of remembered tourist experiences in a safari park. In particular, using matched survey data collected longitudinally and PLS...... path modelling, we examine the impact of positive affect tourist experiences on the development of revisit intentions. We find that longer-term remembered experiences have the strongest impact on revisit intentions, more so than predicted or immediate memory after an event. We also find that remembered...

  9. Structural Assembly Demonstration Experiment (SADE)

    Science.gov (United States)

    Akin, David L.; Mills, Raymond A.; Bowden, Mary L.

    1987-01-01

    The purpose of the Structural Assembly Demonstration Experiment (SADE) was to create a near-term Shuttle flight experiment focusing on the deployment and erection of structural truss elements. The activities of the MIT Space Systems Laboratory consist of three major areas: preparing and conducting neutral buoyancy simulation test series; producing a formal SADE Experiment plan; and studying the structural dynamics issues of the truss structure. Each of these areas is summarized.

  10. The SELEX experiment at Fermilab

    Science.gov (United States)

    Smith, V. J.

    1998-05-01

    The SELEX experiment (Segmented Large-X Spectrometer) has been taking data in the 1996-7 Fermilab fixed-target run. The experiment uses a 650 GeV/c negative beam which is 50% Σ-, 50% π-. The primary purpose is to study the production and properties of charmed and charm-strange baryons, but there is also a wide program of other physics topics. The present status of the experiment and preliminary analysis are presented.

  11. Evaluation of Saxton critical experiments

    Energy Technology Data Exchange (ETDEWEB)

    Joo, Hyung Kook; Noh, Jae Man; Jung, Hyung Guk; Kim, Young Il; Kim, Young Jin [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1997-12-31

    As a part of International Criticality Safety Benchmark Evaluation Project (ICSBEP), SAXTON critical experiments were reevaluated. The effects of k{sub eff} of the uncertainties in experiment parameters, fuel rod characterization, soluble boron, critical water level, core structure, {sup 241}Am and {sup 241}Pu isotope number densities, random pitch error, duplicated experiment, axial fuel position, model simplification, etc., were evaluated and added in benchmark-model k{sub eff}. In addition to detailed model, the simplified model for Saxton critical experiments was constructed by omitting the top, middle, and bottom grids and ignoring the fuel above water. 6 refs., 1 fig., 3 tabs. (Author)

  12. Designing experiments through compressed sensing.

    Energy Technology Data Exchange (ETDEWEB)

    Young, Joseph G.; Ridzal, Denis

    2013-06-01

    In the following paper, we discuss how to design an ensemble of experiments through the use of compressed sensing. Specifically, we show how to conduct a small number of physical experiments and then use compressed sensing to reconstruct a larger set of data. In order to accomplish this, we organize our results into four sections. We begin by extending the theory of compressed sensing to a finite product of Hilbert spaces. Then, we show how these results apply to experiment design. Next, we develop an efficient reconstruction algorithm that allows us to reconstruct experimental data projected onto a finite element basis. Finally, we verify our approach with two computational experiments.

  13. Heidegger, lived experience and method.

    Science.gov (United States)

    Paley, John

    2014-07-01

    A discussion of the assumption that Heidegger's philosophy in Being And Time provides a warrant for the study of lived experience. It is generally assumed, in nursing as in other disciplines, that Heidegger's philosophy points, uncontroversially, to the study of lived experience. It is also assumed that studies of this type will take the form of qualitative interviews which seek to explore the respondent's experience of a particular phenomenon and to elicit the meanings which the individual concerned attaches to that experience. Being And Time; the philosophical literature on Heidegger since 1999; the literature of experimental social psychology, 1970-2012. According to Heidegger, there is no such thing as 'lived experience'. The concept is embedded in the subject-object dualism that he is attempting to dismantle. In Heideggerian terms, interviews intended to explore 'lived experience' can only reproduce the voice of das Man, the 'They', not the voice of unique individuals. Methods more in keeping with Heidegger's philosophy include observation, naturalistic experiments, some forms of discourse analysis and conceptually associated lines of enquiry involving vocabularies of motive, scripts and the performative aspects of language use. Nursing researchers who wish to embrace Heidegger's philosophy as a basis for their work should abandon 'lived experience' interviews and adopt one of the alternative methods suggested above. Nursing researchers who wish to continue with 'lived experience' interviews should seek an alternative philosophical or theoretical basis for their work. © 2013 John Wiley & Sons Ltd.

  14. Popper's Experiment: A Modern Perspective

    Directory of Open Access Journals (Sweden)

    Tabish Qureshi

    2012-11-01

    Full Text Available Karl Popper had proposed an experiment to test the standard interpretation of quantum mechanics. The proposal survived for many year in the midst of no clear consensus on what results it would yield. The experiment was realized by Kim and Shih in 1999, and the apparently surprising result led to lot of debate. We review Popper's proposal and its realization in the light of current era when entanglement has been well studied, both theoretically and experimentally. We show that the "ghost-diffraction" experiment, carried out in a different context, conclusively resolves the controversy surrounding Popper's experiment.Quanta 2012; 1: 19–32.

  15. Adverse Childhood Experiences (ACEs) Study

    Science.gov (United States)

    ... Violence Data LGB Suicidal Thoughts & Experiences Data LGB Youth Report School Violence Featured Topic: Opportunities for Action Featured Topic: Bullying Research Featured Topic: Prevent Gang Membership Featured Topic: ...

  16. DHS Research Experience Summary

    Energy Technology Data Exchange (ETDEWEB)

    Venkatachalam, V

    2008-10-24

    I learned a great deal during my summer internship at Lawrence Livermore National Laboratory (LLNL). I plan to continue a career in research, and I feel that my experience at LLNL has been formative. I was exposed to a new area of research, as part of the Single Particle Aerosol Mass Spectrometry (SPAMS) group, and I had the opportunity to work on projects that I would not have been able to work on anywhere else. The projects both involved the use of a novel mass spectrometer that was developed at LLNL, so I would not have been able to do this research at any other facility. The first project that Zachary and I worked on involved using SPAMS to detect pesticides. The ability to rapidly detect pesticides in a variety of matrices is applicable to many fields including public health, homeland security, and environmental protection. Real-time, or near real-time, detection of potentially harmful or toxic chemical agents can offer significant advantages in the protection of public health from accidental or intentional releases of harmful pesticides, and can help to monitor the environmental effects of controlled releases of pesticides for pest control purposes. The use of organophosphate neurotoxins by terrorists is a possibility that has been described; this is a legitimate threat, considering the ease of access, toxicity, and relatively low cost of these substances. Single Particle Aerosol Mass Spectrometry (SPAMS) has successfully been used to identify a wide array of chemical compounds, including drugs, high explosives, biological materials, and chemical warfare agent simulants. Much of this groundbreaking work was carried out by our group at LLNL. In our work, we had the chance to show that SPAMS fulfills a demonstrated need for a method of carrying out real-time pesticide detection with minimal sample preparation. We did this by using a single particle aerosol mass spectrometer to obtain spectra of five different pesticides. Pesticide samples were chosen to

  17. Ionization Cooling for Muon Experiments

    Energy Technology Data Exchange (ETDEWEB)

    Alexahin, Y. [Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Neuffer, D. [Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Prebys, E. [Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

    2014-09-18

    Possible application for muon experiments such as mu2e is discussed of the initial part of the ionization cooling channel originally developed for muon collider. It is shown that with the FNAL Booster as the proton driver the mu2e sensitivity can be increased by two orders of magnitude compared to the presently considered experiment.

  18. Ionization Cooling for Muon Experiments

    OpenAIRE

    Alexahin, Y.; D. Neuffer; Prebys, E.

    2014-01-01

    Possible application for muon experiments such as mu2e is discussed of the initial part of the ionization cooling channel originally developed for muon collider. It is shown that with the FNAL Booster as the proton driver the mu2e sensitivity can be increased by two orders of magnitude compared to the presently considered experiment.

  19. Axion experiment makes its debut

    CERN Multimedia

    Dumé, Belle

    2004-01-01

    An experiment built from components recycled from other experiments has put new limits on the properties of particles that might be the "dark matter" that makes up about 25% of the universe. The CERN Axion Solar telescope (CAST) was built to search for exotic particles called axions that might be produced inside the sun (1 page)

  20. Family members' experiences of autopsy

    NARCIS (Netherlands)

    Oppewal, F; Meyboom-de Jong, B

    2001-01-01

    Background. The experiences of family members will teach us how to handle an autopsy, the ultimate quality assessment tool. Objective. The aim of this study was to determine surviving family members' experience of autopsy. Method. Seven GPs were asked to approach surviving family members of autopsie

  1. Experiences on IGSCC crack manufacturing

    Energy Technology Data Exchange (ETDEWEB)

    Veron, P. [Equipos Nucleares, S.A., Maliano (Spain)

    1997-02-01

    The author presents his experience in manufacturing IGSCC realistic defects, mainly in INCONEL 600 MA Steam Generator Tubes. From that experience he extracts some knowledge about this cracking (influence of chemistry in the environment, stress state, crack growth rate, and occurrence in laboratory condition of break before leak).

  2. A Classroom Experiment on Banking

    Science.gov (United States)

    Kassis, Mary Mathewes; Hazlett, Denise; Ygosse Battisti, Jolanda E.

    2012-01-01

    This classroom experiment uses double oral auction credit markets to illustrate the role of banks as financial intermediaries. The experiment demonstrates how risk affects market interest rates in the presence of asymmetric information. It provides fodder for a discussion of the moral-hazard problem of deposit insurance and its impact on depositor…

  3. KEK GRID for ILC Experiments

    CERN Document Server

    Miyamoto, Akiya; Ikematsu, Katsumasa

    2010-01-01

    The LCG GRID system is the indispensable infrastructure for large scale computing required for ILC experiments. It had been used extensively for ILD LOI studies and its use will be further increased in coming DBD studies. Experiences during the LOI era and plan towards DBD study in KEK are presented.

  4. Price Discrimination: A Classroom Experiment

    Science.gov (United States)

    Aguiló, Paula; Sard, Maria; Tugores, Maria

    2016-01-01

    In this article, the authors describe a classroom experiment aimed at familiarizing students with different types of price discrimination (first-, second-, and third-degree price discrimination). During the experiment, the students were asked to decide what tariffs to set as monopolists for each of the price discrimination scenarios under…

  5. Experimenting with Inexpensive Plastic Springs

    Science.gov (United States)

    Perez, Leander; Marques, Adriana; Sánchez, Iván

    2014-01-01

    Acommon undergraduate laboratory experience is the determination of the elastic constant of a spring, whether studying the elongation under a static load or studying the damped harmonic motion of the spring with a suspended mass. An alternative approach to this laboratory experience has been suggested by Menezes et al., aimed at studying the…

  6. LCA Experiences in Danish Industry

    DEFF Research Database (Denmark)

    Broberg, Ole; Christensen, Per

    1999-01-01

    A study on Danish industry's experiences with LCA has been performed. Twenty-six enter-prises from different sectors filled in a questionnaire. The enterprises are still in an adoption and learning phase and experiences with full-blown LCA's are sparse. Expectations of future market pressure...

  7. An Undergraduate Column Chromatography Experiment.

    Science.gov (United States)

    Danot, M.; And Others

    1984-01-01

    Background information, list of materials needed, and procedures used are provided for an experiment designed to introduce undergraduate students to the theoretical and technical aspects of column chromatography. The experiment can also be shortened to serve as a demonstration of the column chromatography technique. (JN)

  8. An Experiment on Wind Energy

    Science.gov (United States)

    Lombardo, Vincenzo; Fiordilino, Emilio; Gallitto, Aurelio Agliolo; Aglieco, Pasquale

    2012-01-01

    We discuss an experiment on wind energy performed with home-made apparatus. The experiment reproduces a laboratory windmill, which can pump water from a lower level to a higher one. By measuring the gain of the gravitational potential energy of the pumped water, one can determine the power extracted from the wind. The activity was carried out with…

  9. Crucial Experiments in Quantum Physics.

    Science.gov (United States)

    Trigg, George L.

    The six experiments included in this monography are titled Blackbody Radiation, Collision of Electrons with Atoms, The Photoelectric Effect, Magnetic Properties of Atoms, The Scattering of X-Rays, and Diffraction of Electrons by a Crystal Lattice. The discussion provides historical background by giving description of the original experiments and…

  10. Rachel's Story: A Transpersonal Experience.

    Science.gov (United States)

    Holden, Janice Miner

    2000-01-01

    This article presents a case study in which a client's transpersonal/religious/spiritual experience facilitated the achievement of her counseling goal. Through the paranormal experience, she resolved several of her conflicts, including a new appreciation of the church from which she had become estranged. (Author)

  11. LCA Experiences in Danish Industry

    DEFF Research Database (Denmark)

    Broberg, Ole; Christensen, Per

    1999-01-01

    A study on Danish industry's experiences with LCA has been performed. Twenty-six enter-prises from different sectors filled in a questionnaire. The enterprises are still in an adoption and learning phase and experiences with full-blown LCA's are sparse. Expectations of future market pressure...

  12. Family members' experiences of autopsy

    NARCIS (Netherlands)

    Oppewal, F; Meyboom-de Jong, B

    Background. The experiences of family members will teach us how to handle an autopsy, the ultimate quality assessment tool. Objective. The aim of this study was to determine surviving family members' experience of autopsy. Method. Seven GPs were asked to approach surviving family members of

  13. Work, Experience and Adult Education

    DEFF Research Database (Denmark)

    Rasmussen, Palle

    2006-01-01

    A presentation and discussion of the theories of work, experience and adult education developed by the German philosopher and sociologist Oskar Negt.......A presentation and discussion of the theories of work, experience and adult education developed by the German philosopher and sociologist Oskar Negt....

  14. A Classroom Experiment on Banking

    Science.gov (United States)

    Kassis, Mary Mathewes; Hazlett, Denise; Ygosse Battisti, Jolanda E.

    2012-01-01

    This classroom experiment uses double oral auction credit markets to illustrate the role of banks as financial intermediaries. The experiment demonstrates how risk affects market interest rates in the presence of asymmetric information. It provides fodder for a discussion of the moral-hazard problem of deposit insurance and its impact on depositor…

  15. Experimenting with Brass Musical Instruments.

    Science.gov (United States)

    LoPresto, Michael C.

    2003-01-01

    Describes experiments to address the properties of brass musical instruments that can be used to demonstrate sound in any level physics course. The experiments demonstrate in a quantitative fashion the effects of the mouthpiece and bell on the frequencies of sound waves and thus the musical pitches produced. (Author/NB)

  16. Student Experiments in Spontaneous Fission.

    Science.gov (United States)

    Becchetti, F. D.; Ying, J. S.

    1981-01-01

    Advanced undergraduate experiments utilizing a commercially available, thin spontaneous fission source are described, including studies of the energy and mass distribution of the fission fragments and their energy and angular correlation. The experiments provide a useful introduction to fission, nuclear mass equations, heavy-ion physics, and…

  17. An Accounting International Experience Course

    Science.gov (United States)

    Johnson, Leigh Redd; Rudolph, Holly R.; Seay, Robert A.

    2010-01-01

    Accounting students need practical opportunities to personally experience other cultures and international business practices if they are to effectively compete in today's global marketplace. In order to address this need, the Department of Accounting at Murray State University offers an international experience course which includes a short-term…

  18. Experiments with a DC Motor

    Science.gov (United States)

    Kraftmakher, Yaakov

    2010-01-01

    Experiments with an electric motor provide good opportunity to demonstrate some basic laws of electricity and magnetism. The aim of the experiments with a low-power dc motor is to show how the motor approaches its steady rotation and how its torque, mechanical power and efficiency depend on the rotation velocity. The tight relationship between the…

  19. Newcomers' Experiences of MERGA 36

    Science.gov (United States)

    Semler, Yvette; Cavanagh, Michael

    2014-01-01

    This paper reports on the experiences of newcomers at the 36th Annual MERGA Conference. The paper applies Wenger's (1998) social learning theory to explore the kinds of feedback that might assist newcomers. Questionnaire responses to describe the experience of ten newcomers and interview responses from five of the ten are reported. The…

  20. Embedding Laboratory Experience in Lectures

    Science.gov (United States)

    Morgan, James R.; Barroso, Luciana R.; Simpson, Nancy

    2009-01-01

    Demonstrations can be very effective at enhancing student learning and represent a mechanism for embedding laboratory experiences within a classroom setting. A key component to an effective demonstration is active student engagement throughout the entire process, leading to a guided laboratory experience in a lecture setting. Students are involved…

  1. Experience economy brimming with potential

    DEFF Research Database (Denmark)

    Sørensen, Flemming; Sundbo, Jon

    2014-01-01

    In these days of economic uncertainty, businesses ought to make better use of recent research into the experience economy. Perhaps co-creation and individualisation can save us from the crisis, argue the editors of a new book about the latest research into the experience economy....

  2. NATO: In-orbit experience

    Science.gov (United States)

    Capulli, J. J.

    1980-01-01

    The performance of the NATO-111-A and NATO 111-B satellite battery is reported. The electrical power subsystem is briefly described. The electrical characteristics and the reconditioning experience of the batteries is cited. The in-orbit experience is compared with results of preflight accelerated life tests.

  3. Stretching the Traditional Notion of Experiment in Computing: Explorative Experiments.

    Science.gov (United States)

    Schiaffonati, Viola

    2016-06-01

    Experimentation represents today a 'hot' topic in computing. If experiments made with the support of computers, such as computer simulations, have received increasing attention from philosophers of science and technology, questions such as "what does it mean to do experiments in computer science and engineering and what are their benefits?" emerged only recently as central in the debate over the disciplinary status of the discipline. In this work we aim at showing, also by means of paradigmatic examples, how the traditional notion of controlled experiment should be revised to take into account a part of the experimental practice in computing along the lines of experimentation as exploration. Taking inspiration from the discussion on exploratory experimentation in the philosophy of science-experimentation that is not theory-driven-we advance the idea of explorative experiments that, although not new, can contribute to enlarge the debate about the nature and role of experimental methods in computing. In order to further refine this concept we recast explorative experiments as socio-technical experiments, that test new technologies in their socio-technical contexts. We suggest that, when experiments are explorative, control should be intended in a posteriori form, in opposition to the a priori form that usually takes place in traditional experimental contexts.

  4. Handbook on the Experience Economy

    DEFF Research Database (Denmark)

    This illuminating Handbook presents the state-of-the-art in the scientific field of experience economy studies. It offers a rich and varied collection of contributions that discuss different issues of crucial importance for our understanding of the experience economy. Each chapter reflects diverse...... scientific viewpoints from disciplines including management, mainstream economics and sociology to provide a comprehensive overview. The Handbook is divided into three subsections to explore progression in the scientific field of experience economy studies. The first section focuses on fundamental debates...... surrounding the nature and importance of the experience economy. The second section presents more specific topics including innovation, networks and the design of experiences. Finally, the last section explores issues such as cultural events, cuisine, theatre and video games. Moreover, the Handbook gives...

  5. The T2K experiment

    Science.gov (United States)

    Abe, K.; Abgrall, N.; Aihara, H.; Ajima, Y.; Albert, J. B.; Allan, D.; Amaudruz, P.-A.; Andreopoulos, C.; Andrieu, B.; Anerella, M. D.; Angelsen, C.; Aoki, S.; Araoka, O.; Argyriades, J.; Ariga, A.; Ariga, T.; Assylbekov, S.; de André, J. P. A. M.; Autiero, D.; Badertscher, A.; Ballester, O.; Barbi, M.; Barker, G. J.; Baron, P.; Barr, G.; Bartoszek, L.; Batkiewicz, M.; Bay, F.; Bentham, S.; Berardi, V.; Berger, B. E.; Berns, H.; Bertram, I.; Besnier, M.; Beucher, J.; Beznosko, D.; Bhadra, S.; Birney, P.; Bishop, D.; Blackmore, E.; Blaszczyk, F. d. M.; Blocki, J.; Blondel, A.; Bodek, A.; Bojechko, C.; Bouchez, J.; Boussuge, T.; Boyd, S. B.; Boyer, M.; Braam, N.; Bradford, R.; Bravar, A.; Briggs, K.; Brinson, J. D.; Bronner, C.; Brook-Roberge, D. G.; Bryant, M.; Buchanan, N.; Budd, H.; Cadabeschi, M.; Calland, R. G.; Calvet, D.; Caravaca Rodríguez, J.; Carroll, J.; Cartwright, S. L.; Carver, A.; Castillo, R.; Catanesi, M. G.; Cavata, C.; Cazes, A.; Cervera, A.; Charrier, J. P.; Chavez, C.; Choi, S.; Chollet, S.; Christodoulou, G.; Colas, P.; Coleman, J.; Coleman, W.; Collazuol, G.; Connolly, K.; Cooke, P.; Curioni, A.; Dabrowska, A.; Danko, I.; Das, R.; Davies, G. S.; Davis, S.; Day, M.; De La Broise, X.; de Perio, P.; De Rosa, G.; Dealtry, T.; Debraine, A.; Delagnes, E.; Delbart, A.; Densham, C.; Di Lodovico, F.; Di Luise, S.; Dinh Tran, P.; Dobson, J.; Doornbos, J.; Dore, U.; Drapier, O.; Druillole, F.; Dufour, F.; Dumarchez, J.; Durkin, T.; Dytman, S.; Dziewiecki, M.; Dziomba, M.; Ellison, B.; Emery, S.; Ereditato, A.; Escallier, J. E.; Escudero, L.; Esposito, L. S.; Faszer, W.; Fechner, M.; Ferrero, A.; Finch, A.; Fisher, C.; Fitton, M.; Flight, R.; Forbush, D.; Frank, E.; Fransham, K.; Fujii, Y.; Fukuda, Y.; Gallop, M.; Galymov, V.; Ganetis, G. L.; Gannaway, F. C.; Gaudin, A.; Gaweda, J.; Gendotti, A.; George, M.; Giffin, S.; Giganti, C.; Gilje, K.; Giomataris, I.; Giraud, J.; Ghosh, A. K.; Golan, T.; Goldhaber, M.; Gomez-Cadenas, J. J.; Gomi, S.; Gonin, M.; Goyette, M.; Grant, A.; Grant, N.; Grañena, F.; Greenwood, S.; Gumplinger, P.; Guzowski, P.; Haigh, M. D.; Hamano, K.; Hansen, C.; Hara, T.; Harrison, P. F.; Hartfiel, B.; Hartz, M.; Haruyama, T.; Hasanen, R.; Hasegawa, T.; Hastings, N. C.; Hastings, S.; Hatzikoutelis, A.; Hayashi, K.; Hayato, Y.; Haycock, T. D. J.; Hearty, C.; Helmer, R. L.; Henderson, R.; Herlant, S.; Higashi, N.; Hignight, J.; Hiraide, K.; Hirose, E.; Holeczek, J.; Honkanen, N.; Horikawa, S.; Hyndman, A.; Ichikawa, A. K.; Ieki, K.; Ieva, M.; Iida, M.; Ikeda, M.; Ilic, J.; Imber, J.; Ishida, T.; Ishihara, C.; Ishii, T.; Ives, S. J.; Iwasaki, M.; Iyogi, K.; Izmaylov, A.; Jamieson, B.; Johnson, R. A.; Joo, K. K.; Jover-Manas, G.; Jung, C. K.; Kaji, H.; Kajita, T.; Kakuno, H.; Kameda, J.; Kaneyuki, K.; Karlen, D.; Kasami, K.; Kasey, V.; Kato, I.; Kawamuko, H.; Kearns, E.; Kellet, L.; Khabibullin, M.; Khaleeq, M.; Khan, N.; Khotjantsev, A.; Kielczewska, D.; Kikawa, T.; Kim, J. Y.; Kim, S.-B.; Kimura, N.; Kirby, B.; Kisiel, J.; Kitching, P.; Kobayashi, T.; Kogan, G.; Koike, S.; Komorowski, T.; Konaka, A.; Kormos, L. L.; Korzenev, A.; Koseki, K.; Koshio, Y.; Kouzuma, Y.; Kowalik, K.; Kravtsov, V.; Kreslo, I.; Kropp, W.; Kubo, H.; Kubota, J.; Kudenko, Y.; Kulkarni, N.; Kurchaninov, L.; Kurimoto, Y.; Kurjata, R.; Kurosawa, Y.; Kutter, T.; Lagoda, J.; Laihem, K.; Langstaff, R.; Laveder, M.; Lawson, T. B.; Le, P. T.; Le Coguie, A.; Le Ross, M.; Lee, K. P.; Lenckowski, M.; Licciardi, C.; Lim, I. T.; Lindner, T.; Litchfield, R. P.; Longhin, A.; Lopez, G. D.; Lu, P.; Ludovici, L.; Lux, T.; Macaire, M.; Magaletti, L.; Mahn, K.; Makida, Y.; Malafis, C. J.; Malek, M.; Manly, S.; Marchionni, A.; Mark, C.; Marino, A. D.; Marone, A. J.; Marteau, J.; Martin, J. F.; Maruyama, T.; Maryon, T.; Marzec, J.; Masliah, P.; Mathie, E. L.; Matsumura, C.; Matsuoka, K.; Matveev, V.; Mavrokoridis, K.; Mazzucato, E.; McCauley, N.; McFarland, K. S.; McGrew, C.; McLachlan, T.; Mercer, I.; Messina, M.; Metcalf, W.; Metelko, C.; Mezzetto, M.; Mijakowski, P.; Miller, C. A.; Minamino, A.; Mineev, O.; Mine, S.; Minvielle, R. E.; Mituka, G.; Miura, M.; Mizouchi, K.; Mols, J.-P.; Monfregola, L.; Monmarthe, E.; Moreau, F.; Morgan, B.; Moriyama, S.; Morris, D.; Muir, A.; Murakami, A.; Muratore, J. F.; Murdoch, M.; Murphy, S.; Myslik, J.; Nagashima, G.; Nakadaira, T.; Nakahata, M.; Nakamoto, T.; Nakamura, K.; Nakayama, S.; Nakaya, T.; Naples, D.; Nelson, B.; Nicholls, T. C.; Nishikawa, K.; Nishino, H.; Nitta, K.; Nizery, F.; Nowak, J. A.; Noy, M.; Obayashi, Y.; Ogitsu, T.; Ohhata, H.; Okamura, T.; Okumura, K.; Okusawa, T.; Ohlmann, C.; Olchanski, K.; Openshaw, R.; Oser, S. M.; Otani, M.; Owen, R. A.; Oyama, Y.; Ozaki, T.; Pac, M. Y.; Palladino, V.; Paolone, V.; Paul, P.; Payne, D.; Pearce, G. F.; Pearson, C.; Perkin, J. D.; Pfleger, M.; Pierre, F.; Pierrepont, D.; Plonski, P.; Poffenberger, P.; Poplawska, E.; Popov, B.; Posiadala, M.; Poutissou, J.-M.; Poutissou, R.; Preece, R.; Przewlocki, P.; Qian, W.; Raaf, J. L.; Radicioni, E.; Ramos, K.; Ratoff, P.; Raufer, T. M.; Ravonel, M.; Raymond, M.; Retiere, F.; Richards, D.; Ritou, J.-L.; Robert, A.; Rodrigues, P. A.; Rondio, E.; Roney, M.; Rooney, M.; Ross, D.; Rossi, B.; Roth, S.; Rubbia, A.; Ruterbories, D.; Sacco, R.; Sadler, S.; Sakashita, K.; Sanchez, F.; Sarrat, A.; Sasaki, K.; Schaack, P.; Schmidt, J.; Scholberg, K.; Schwehr, J.; Scott, M.; Scully, D. I.; Seiya, Y.; Sekiguchi, T.; Sekiya, H.; Sheffer, G.; Shibata, M.; Shimizu, Y.; Shiozawa, M.; Short, S.; Siyad, M.; Smith, D.; Smith, R. J.; Smy, M.; Sobczyk, J.; Sobel, H.; Sooriyakumaran, S.; Sorel, M.; Spitz, J.; Stahl, A.; Stamoulis, P.; Star, O.; Statter, J.; Stawnyczy, L.; Steinmann, J.; Steffens, J.; Still, B.; Stodulski, M.; Stone, J.; Strabel, C.; Strauss, T.; Sulej, R.; Sutcliffe, P.; Suzuki, A.; Suzuki, K.; Suzuki, S.; Suzuki, S. Y.; Suzuki, Y.; Suzuki, Y.; Swierblewski, J.; Szeglowski, T.; Szeptycka, M.; Tacik, R.; Tada, M.; Tadepalli, A. S.; Taguchi, M.; Takahashi, S.; Takeda, A.; Takenaga, Y.; Takeuchi, Y.; Tanaka, H. A.; Tanaka, K.; Tanaka, M.; Tanaka, M. M.; Tanimoto, N.; Tashiro, K.; Taylor, I. J.; Terashima, A.; Terhorst, D.; Terri, R.; Thompson, L. F.; Thorley, A.; Thorpe, M.; Toki, W.; Tomaru, T.; Totsuka, Y.; Touramanis, C.; Tsukamoto, T.; Tvaskis, V.; Tzanov, M.; Uchida, Y.; Ueno, K.; Usseglio, M.; Vacheret, A.; Vagins, M.; Van Schalkwyk, J. F.; Vanel, J.-C.; Vasseur, G.; Veledar, O.; Vincent, P.; Wachala, T.; Waldron, A. V.; Walter, C. W.; Wanderer, P. J.; Ward, M. A.; Ward, G. P.; Wark, D.; Warner, D.; Wascko, M. O.; Weber, A.; Wendell, R.; Wendland, J.; West, N.; Whitehead, L. H.; Wikström, G.; Wilkes, R. J.; Wilking, M. J.; Williamson, Z.; Wilson, J. R.; Wilson, R. J.; Wong, K.; Wongjirad, T.; Yamada, S.; Yamada, Y.; Yamamoto, A.; Yamamoto, K.; Yamanoi, Y.; Yamaoka, H.; Yanagisawa, C.; Yano, T.; Yen, S.; Yershov, N.; Yokoyama, M.; Zalewska, A.; Zalipska, J.; Zaremba, K.; Ziembicki, M.; Zimmerman, E. D.; Zito, M.; Zmuda, J.; T2K Collaboration

    2011-12-01

    The T2K experiment is a long baseline neutrino oscillation experiment. Its main goal is to measure the last unknown lepton sector mixing angle θ13 by observing νe appearance in a νμ beam. It also aims to make a precision measurement of the known oscillation parameters, Δm232 and sin22θ23, via νμ disappearance studies. Other goals of the experiment include various neutrino cross-section measurements and sterile neutrino searches. The experiment uses an intense proton beam generated by the J-PARC accelerator in Tokai, Japan, and is composed of a neutrino beamline, a near detector complex (ND280), and a far detector (Super-Kamiokande) located 295 km away from J-PARC. This paper provides a comprehensive review of the instrumentation aspect of the T2K experiment and a summary of the vital information for each subsystem.

  6. Design and analysis of experiments

    CERN Document Server

    Dean, Angela; Draguljić, Danel

    2017-01-01

    This textbook takes a strategic approach to the broad-reaching subject of experimental design by identifying the objectives behind an experiment and teaching practical considerations that govern design and implementation, concepts that serve as the basis for the analytical techniques covered. Rather than a collection of miscellaneous approaches, chapters build on the planning, running, and analyzing of simple experiments in an approach that results from decades of teaching the subject. In most experiments, the procedures can be reproduced by readers, thus giving them a broad exposure to experiments that are simple enough to be followed through their entire course. Outlines of student and published experiments appear throughout the text and as exercises at the end of the chapters. The authors develop the theory of estimable functions and analysis of variance with detail, but at a mathematical level that is simultaneously approachable. Throughout the book, statistical aspects of analysis complement practical as...

  7. Aura, Self, and Aesthetic Experience

    Directory of Open Access Journals (Sweden)

    Marshall Battani

    2011-01-01

    Full Text Available Aesthetic experiences are generated in encounters with cultural objects and such experiences are marked by the free play of cognitive and numinous experience unstructured by concepts. Kant’s famous three types of pleasure, made infamous in social theory by Pierre Bourdieu, are examined in relation to the critical theoretical concept of aura, the social psychology of “flow,” and cognitive explanations of perception to explain experience in aesthetic fields. Theories of aesthetic experience developed at the crossroad of critical social thought and cognitive science hold promise for a social analysis able to avoid the usual sociological pitfalls of either ignoring aesthetics or reducing it to structurally determined differences of taste.

  8. Is Color Experience Cognitively Penetrable?

    Science.gov (United States)

    Brogaard, Berit; Gatzia, Dimitria E

    2017-01-01

    Is color experience cognitively penetrable? Some philosophers have recently argued that it is. In this paper, we take issue with the claim that color experience is cognitively penetrable. We argue that the notion of cognitive penetration that has recently dominated the literature is flawed since it fails to distinguish between the modulation of perceptual content by non-perceptual principles and genuine cognitive penetration. We use this distinction to show that studies suggesting that color experience can be modulated by factors of the cognitive system do not establish that color experience is cognitively penetrable. Additionally, we argue that even if color experience turns out to be modulated by color-related beliefs and knowledge beyond non-perceptual principles, it does not follow that color experience is cognitively penetrable since the experiences of determinate hues involve post-perceptual processes. We conclude with a brief discussion of the implications that these ideas may have on debates in philosophy. Copyright © 2016 Cognitive Science Society, Inc.

  9. Transcendental experiences during meditation practice.

    Science.gov (United States)

    Travis, Frederick

    2014-01-01

    This article explores transcendental experiences during meditation practice and the integration of transcendental experiences and the unfolding of higher states of consciousness with waking, dreaming, and sleeping. The subject/object relationship during transcendental experiences is characterized by the absence of time, space, and body sense--the framework that gives meaning to waking experiences. Physiologically, transcendental experiences during Transcendental Meditation practice are marked by slow inhalation, along with autonomic orientation at the onset of breath changes and heightened α1 (8-10 Hz) frontal coherence. The integration of transcendental experiences with waking, dreaming, and sleeping is also marked by distinct subjective and objective markers. This integrated state, called Cosmic Consciousness in the Vedic tradition, is subjectively marked by inner self-awareness coexisting with waking, sleeping, and dreaming. Physiologically, Cosmic Consciousness is marked by the coexistence of α1 electroencephalography (EEG) with delta EEG during deep sleep, and higher brain integration, greater emotional stability, and decreased anxiety during challenging tasks. Transcendental experiences may be the engine that fosters higher human development.

  10. BIOLAB experiment development status 2005

    Science.gov (United States)

    Brinckmann, Enno; Manieri, Pierfilippo

    2005-08-01

    BIOLAB, ESA's major facility for biological Space research on the International Space Station (ISS), will accommodate the first two batches of experiments after its launch with the "Columbus" Laboratory (spring 2007). Seven experiments have been selected for development: three of the first batch have concluded Phase A/B with the testing of the breadboards, in which the main functions of the scientific studies can be simulated and defined for further inputs to the final design of the experiment hardware. The biological specimens of the first batch are scorpions, plant seedlings, bacteria suspensions and cell cultures of mammalian and invertebrate origin. The experiment protocols request demanding resources ranging from life support for the entire mission (90 days) to skilled crew operations and transport/storage in deep freezers. Even more sophisticated experiments are in preparation for the second batch, dealing with various cell culture systems. This presentation gives an overview about the experiment development status, whilst the science background and breadboard test results will be presented by the respective experiment teams.

  11. Material Science Experiments on Mir

    Science.gov (United States)

    Kroes, Roger L.

    1999-01-01

    This paper describes the microgravity materials experiments carried out on the Shuttle/Mir program. There were six experiments, all of which investigated some aspect of diffusivity in liquid melts. The Liquid Metal Diffusion (LMD) experiment investigated the diffusivity of molten Indium samples at 185 C using a radioactive tracer, In-114m. By monitoring two different gamma ray energies (190 keV and 24 keV) emitted by the samples it was possible to measure independently the diffusion rates in the bulk and at the surface of the samples. The Queens University Experiment in Liquid Diffusion (QUELD) was the furnace facility used to process 213 samples for the five other experiments. These experiments investigated the diffusion, ripening, crystal growth, and glass formation in metal, semiconductor, and glass samples. This facility had the capability to process samples in an isothermal or gradient configuration for varying periods of time at temperatures up to 900 C. Both the LMD and the QUELD furnaces were mounted on the Microgravity Isolation Mount (MIM) which provided isolation from g-jitter. All the microgravity experiments were supported by the Space Acceleration Measurement System (SAMS); a three head three axes acceleration monitoring system which measured and recorded the acceleration environment.

  12. Material Science Experiments on Mir

    Science.gov (United States)

    Kroes, Roger L.

    1999-01-01

    This paper describes the microgravity materials experiments carried out on the Shuttle/Mir program. There were six experiments, all of which investigated some aspect of diffusivity in liquid melts. The Liquid Metal Diffusion (LMD) experiment investigated the diffusivity of molten Indium samples at 185 C using a radioactive tracer, In-114m. By monitoring two different gamma ray energies (190 keV and 24 keV) emitted by the samples it was possible to measure independently the diffusion rates in the bulk and at the surface of the samples. The Queens University Experiment in Liquid Diffusion (QUELD) was the furnace facility used to process 213 samples for the five other experiments. These experiments investigated the diffusion, ripening, crystal growth, and glass formation in metal, semiconductor, and glass samples. This facility had the capability to process samples in an isothermal or gradient configuration for varying periods of time at temperatures up to 900 C. Both the LMD and the QUELD furnaces were mounted on the Microgravity Isolation Mount (MIM) which provided isolation from g-jitter. All the microgravity experiments were supported by the Space Acceleration Measurement System (SAMS); a three head three axes acceleration monitoring system which measured and recorded the acceleration environment.

  13. Handbook on the Experience Economy

    DEFF Research Database (Denmark)

    scientific viewpoints from disciplines including management, mainstream economics and sociology to provide a comprehensive overview. The Handbook is divided into three subsections to explore progression in the scientific field of experience economy studies. The first section focuses on fundamental debates......This illuminating Handbook presents the state-of-the-art in the scientific field of experience economy studies. It offers a rich and varied collection of contributions that discuss different issues of crucial importance for our understanding of the experience economy. Each chapter reflects diverse...

  14. AGS experiments: 1993 - 1994 - 1995

    Energy Technology Data Exchange (ETDEWEB)

    Depken, J.C.

    1996-04-01

    This report contains: FY 1995 AGS Schedule as Run; FY 1996-97 AGE Schedule (working copy); AGS Beams 1995; AGS Experimental Area FY 1993 Physics Program; AGS Experimental Area FY 1994 Physics Program; AGS Experimental Area FY 1995 Physics Program; AGS Experimental Area FY 1996 Physics Program (In progress); A listing of experiments by number; Two-page summaries of each experiment begin here, also ordered by number; Listing of publications of AGS experiments begins here; and Listing of AGS experimenters begins here. This is the twelfth edition.

  15. AGS experiments - 1994, 1995, 1996

    Energy Technology Data Exchange (ETDEWEB)

    Depken, J.C.

    1997-01-01

    This report contains the following information on the Brookhaven AGS Accelerator complex: FY 1996 AGS schedule as run; FY 1997 AGS schedule (working copy); AGS beams 1997; AGS experimental area FY 1994 physics program; AGS experimental area FY 1995 physics program; AGS experimental area FY 1996 physics program; AGS experimental area FY 1997 physics program (in progress); a listing of experiments by number; two-phage summaries of each experiment begin here, also ordered by number; listing of publications of AGS experiments begins here; and listing of AGS experimenters begins here.

  16. Experiments Planning, Analysis, and Optimization

    CERN Document Server

    Wu, C F Jeff

    2011-01-01

    Praise for the First Edition: "If you . . . want an up-to-date, definitive reference written by authors who have contributed much to this field, then this book is an essential addition to your library."-Journal of the American Statistical Association Fully updated to reflect the major progress in the use of statistically designed experiments for product and process improvement, Experiments, Second Edition introduces some of the newest discoveries-and sheds further light on existing ones-on the design and analysis of experiments and their applications in system optimization, robustness, and tre

  17. Software for generating psychological experiments.

    Science.gov (United States)

    Stahl, Christoph

    2006-01-01

    This review compares four software packages for generating and running psychological computer experiments. It aims to inform researchers' decisions about which software to choose for their lab. Four widely used general purpose commercial packages available for the Windows platform are considered: DirectRT, E-Prime, Inquisit, and SuperLab. An overview of each package is given, and the implementation of two test experiments is described. Packages are evaluated with regard to the amount of complexity reduction they provide for the task of programming an experiment and the variety of experimental designs they can accommodate.

  18. Field experiment for blasting crater

    Institute of Scientific and Technical Information of China (English)

    YE Tu-qiang

    2008-01-01

    A series of single hole blasting crater experiments and a variable distance multi-hole simultaneous blasting experiment was carded in the Yunfu Troilite Mine, according to the Livingston blasting crater theory. We introduce in detail, our methodology of data collection and processing from our experiments. Based on the burying depth of the explosives, the blasting crater volume was fitted by the method of least squares and the characteristic curve of the blasting crater was obtained using the MATLAB software. From this third degree polynomial, we have derived the optimal burying depth, the critical burying depth and the optimal explosive specific charge of the blasting crater.

  19. Defining and Measuring User Experience

    DEFF Research Database (Denmark)

    Stage, Jan

    2006-01-01

    User experience is being used to denote what a user goes through while using a computerized system. The concept has gained momentum as a means to distinguish new types of applications such as games and entertainment software from more traditional work-related applications. This paper focuses...... on the intrinsic relation between definition and measurement. In the area of usability, this relation has been developed over several years. It is described how usability is defined and measured in contemporary approaches. Based on that, it is discussed to what extent we can employ experience from the conceptual...... definition of usability to develop the notion of user experience....

  20. Customer Experience Management in Retailing

    OpenAIRE

    Kamaladevi B

    2009-01-01

    Survival of fittest & fastest is the mantra of today’s business game. To compete successfully in this business era, the retailer must focus on the customer’s buying experience. To manage a customer’s experience, retailers should understand what “customer experience” actually means. Customer Experience Management is a strategy that focuses the operations and processes of a business around the needs of the individual customer. It represents a strategy that results in a win–win value exchange be...

  1. Customer Experience Management in Retailing

    OpenAIRE

    Kamaladevi B

    2009-01-01

    Survival of fittest & fastest is the mantra of today’s business game. To compete successfully in this business era, the retailer must focus on the customer’s buying experience. To manage a customer’s experience, retailers should understand what “customer experience” actually means. Customer Experience Management is a strategy that focuses the operations and processes of a business around the needs of the individual customer. It represents a strategy that results in a win–win value exchange be...

  2. Flooding Fragility Experiments and Prediction

    Energy Technology Data Exchange (ETDEWEB)

    Smith, Curtis L. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Tahhan, Antonio [Idaho National Lab. (INL), Idaho Falls, ID (United States); Muchmore, Cody [Idaho National Lab. (INL), Idaho Falls, ID (United States); Nichols, Larinda [Idaho National Lab. (INL), Idaho Falls, ID (United States); Bhandari, Bishwo [Idaho National Lab. (INL), Idaho Falls, ID (United States); Pope, Chad [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-09-01

    This report describes the work that has been performed on flooding fragility, both the experimental tests being carried out and the probabilistic fragility predictive models being produced in order to use the text results. Flooding experiments involving full-scale doors have commenced in the Portal Evaluation Tank. The goal of these experiments is to develop a full-scale component flooding experiment protocol and to acquire data that can be used to create Bayesian regression models representing the fragility of these components. This work is in support of the Risk-Informed Safety Margin Characterization (RISMC) Pathway external hazards evaluation research and development.

  3. The SELEX experiment at Fermilab

    Energy Technology Data Exchange (ETDEWEB)

    E781 collaboration

    1998-05-01

    The SELEX experiment (Segmented Large-X Spectrometer) has been taking data in the 1996{endash}7 Fermilab fixed-target run. The experiment uses a 650 GeV/c negative beam which is 50{percent} {Sigma}{sup {minus}}, 50{percent} {pi}{sup {minus}}. The primary purpose is to study the production and properties of charmed and charm-strange baryons, but there is also a wide program of other physics topics. The present status of the experiment and preliminary analysis are presented. {copyright} {ital 1998 American Institute of Physics.}

  4. Sketching user experiences the workbook

    CERN Document Server

    Greenberg, Saul; Marquardt, Nicolai; Buxton, Bill

    2012-01-01

    In Sketching User Experiences: The Workbook, you will learn, through step-by-step instructions and exercises, various sketching methods that will let you express your design ideas about user experiences across time. Collectively, these methods will be your sketching repertoire: a toolkit where you can choose the method most appropriate for developing your ideas, which will help you cultivate a culture of experience-based design and critique in your workplace. Features standalone modules detailing methods and exercises for practitioners who want to learn and develop their sketching skills E

  5. Flow Results of Experiment 117

    Energy Technology Data Exchange (ETDEWEB)

    Brown, Donald W. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    1976-05-25

    Experiment 117, performed on two separate days, was primarily a seismic fracture orientation experiment. On Wednesday, March 3, The fracture intersecting EE-1 was reinflated for the first time using a Western pump--a total of 9170 gallons was pumped into EE-1 fracture was again inflated and then extended while pumping a total of 31, 140 gallons into EE-1, again using a Western pump. For Friday's experiment, GT-2 was shut in during the pumping phase, and then vented over the weekend with EE-1 shut in.

  6. Spatial experiences and interaction design

    DEFF Research Database (Denmark)

    Dalsgård, Peter

    2006-01-01

    IT is rapidly spreading to non-desktop environments, and is increasingly being used for post-functional purposes. Recent contributions within the field of interaction design have indicated a tight coupling between physico-spatial and experiential issues, both on a technological and on a theoretical...... level. However, interaction design and HCI yet has little to offer designers working with physico-spatial and experiential issues in practical design cases. In this paper, I argue that experiments that explore spatial and experiential aspects are crucial in developing the practice of interaction design....... These  aspects may be brought to the forefront by engaging in, reflecting upon, and reporting from physico-spatial design experiments, and by making spatial and experience-oriented design representations part of the design process. These experiments may be supported by design representations inspired...

  7. Progress in Compact Toroid Experiments

    Energy Technology Data Exchange (ETDEWEB)

    Dolan, Thomas James

    2002-09-01

    The term "compact toroids" as used here means spherical tokamaks, spheromaks, and field reversed configurations, but not reversed field pinches. There are about 17 compact toroid experiments under construction or operating, with approximate parameters listed in Table 1.

  8. Biotechnology Science Experiments on Mir

    Science.gov (United States)

    Kroes, Roger L.

    1999-01-01

    This paper describes the microgravity biotechnology experiments carried out on the Shuttle/Mir program. Four experiments investigated the growth of protein crystals, and three investigated cellular growth. Many hundreds of protein samples were processed using four different techniques. The objective of these experiments was to determine optimum conditions for the growth of very high quality single crystals to be used for structure determination. The Biotechnology System (BTS) was used to process the three cell growth investigations. The samples processed by these experiments were: bovine chondrocytes, human renal epithelial cells, and human breast cancer cells and endothelial cells. The objective was to determine the unique properties of cell aggregates produced in the microgravity environment.

  9. LHCb: Self managing experiment resources

    CERN Multimedia

    Stagni, F

    2013-01-01

    Within this paper we present an autonomic Computing resources management system used by LHCb for assessing the status of their Grid resources. Virtual Organizations Grids include heterogeneous resources. For example, LHC experiments very often use resources not provided by WLCG and Cloud Computing resources will soon provide a non-negligible fraction of their computing power. The lack of standards and procedures across experiments and sites generated the appearance of multiple information systems, monitoring tools, ticket portals, etc... which nowadays coexist and represent a very precious source of information for running HEP experiments Computing systems as well as sites. These two facts lead to many particular solutions for a general problem: managing the experiment resources. In this paper we present how LHCb, via the DIRAC interware addressed such issues. With a renewed Central Information Schema hosting all resources metadata and a Status System ( Resource Status System ) delivering real time informatio...

  10. More Refined Experiments with Hemoglobin.

    Science.gov (United States)

    Morin, Phillippe

    1985-01-01

    Discusses materials needed, procedures used, and typical results obtained for experiments designed to make a numerical stepwise study of the oxygenation of hemoglobin, myoglobin, and other oxygen carriers. (JN)

  11. Introduction to Statistically Designed Experiments

    Energy Technology Data Exchange (ETDEWEB)

    Heaney, Mike

    2016-09-13

    Statistically designed experiments can save researchers time and money by reducing the number of necessary experimental trials, while resulting in more conclusive experimental results. Surprisingly, many researchers are still not aware of this efficient and effective experimental methodology. As reported in a 2013 article from Chemical & Engineering News, there has been a resurgence of this methodology in recent years (http://cen.acs.org/articles/91/i13/Design-Experiments-Makes-Comeback.html?h=2027056365). This presentation will provide a brief introduction to statistically designed experiments. The main advantages will be reviewed along with the some basic concepts such as factorial and fractional factorial designs. The recommended sequential approach to experiments will be introduced and finally a case study will be presented to demonstrate this methodology.

  12. Occupational Experience, Mobility, and Wages

    DEFF Research Database (Denmark)

    Groes, Fane

    In this paper we present how occupational tenure relates to wage growth and occupational mobility in Danish data. We show that the Danish data produces qualitatively similar results as found in U.S. data with respect to an increase in average wages when experience in an occupation increases....... In a sample of full time private employed, the first five years of experience in an occupation increases average wages with 8% to 15%, conditional on rm and industry tenure. We further show that the probability of switching occupation declines with experience in the occupation and that the declining hazard...... also is true for workers switching occupation and rm. After ve years of experience in an occupation the average probability of switching any type of occupation, including occupation and rm switches, has fallen from 25% to 12%....

  13. Cavitation Nuclei: Experiments and Theory

    DEFF Research Database (Denmark)

    Mørch, Knud Aage

    2009-01-01

    The Swedish astrophysicist and Nobel Prize winner Hannes Alfven said: Theories come and go - the experiment is here forever. Often a theory, which we set up to describe an observed physical phenomenon, suffers from the lack of knowledge of decisive parameters, and therefore at best the theory...... becomes insufficient. Contrary, the experiment always reveals nature itself, though at prevailing experimental conditions. With essential parameters being out of control and even maybe unidentified, apparently similar experiments may deviate way beyond our expectations. However, these discrepancies offer...... us a chance to reflect on the character of the unknown parameters. In this way non-concordant experimental results may hold the key to the development of better theories - and to new experiments for the testing of their validity. Cavitation and cavitation nuclei are phenomena of that character....

  14. Experimenting with a Spinning Disk

    Science.gov (United States)

    Cross, Rod

    2015-01-01

    Almost everyone will have observed a spinning coin fall to a shuddering stop. How and why does it do that? Several experiments are described, suitable for a student project, to help motivate an understanding of the rotational dynamics involved.

  15. CAVITATION NUCLEI: EXPERIMENTS AND THEORY

    Institute of Scientific and Technical Information of China (English)

    MфRCH K. A.

    2009-01-01

    The Swedish astrophysicist and Nobel Prize winner Hannes Alfvén said: Theories come and go ─ the experiment is here forever. Often a theory, which we set up to describe an observed physical phenomenon, suffers from the lack of knowledge of decisive parameters, and therefore at best the theory becomes insufficient. Contrary, the experiment always reveals nature itself, though at prevailing experimental conditions. With essential parameters being out of control and even maybe unidentified, apparently similar experiments may deviate way beyond our expectations. However, these discrepancies offer us a chance to reflect on the character of the unknown parameters. In this way non-concordant experimental results may hold the key to the development of better theories – and to new experiments for the testing of their validity. Cavitation and cavitation nuclei are phenomena of that character.

  16. Software for the LHCb experiment

    CERN Document Server

    Corti, Gloria; Belyaev, Ivan; Cattaneo, Marco; Charpentier, Philippe; Frank, Markus; Koppenburg, Patrick; Mato-Vila, P; Ranjard, Florence; Roiser, Stefan

    2006-01-01

    LHCb is an experiment for precision measurements of CP-violation and rare decays in B mesons at the LHC collider at CERN. The LHCb software development strategy follows an architecture-centric approach as a way of creating a resilient software framework that can withstand changes in requirements and technology over the expected long lifetime of the experiment. The software architecture, called GAUDI, supports event data processing applications that run in different processing environments ranging from the real-time high- level triggers in the online system to the final physics analysis performed by more than one hundred physicists. The major architectural design choices and the arguments that lead to these choices will be outlined. Object oriented technologies have been used throughout. Initially developed for the LHCb experiment, GAUDI has been adopted and extended by other experiments. Several iterations of the GAUDI software framework have been released and are now being used routinely by the physicists of...

  17. Managing the Fruit Fly Experiment.

    Science.gov (United States)

    Jeszenszky, Arleen W.

    1997-01-01

    Describes a sophisticated version of the fruit fly experiment for teaching concepts about genetics to biology students. Provides students with the opportunity to work with live animals over an extended period. (JRH)

  18. Internet experiments: methods, guidelines, metadata

    Science.gov (United States)

    Reips, Ulf-Dietrich

    2009-02-01

    The Internet experiment is now a well-established and widely used method. The present paper describes guidelines for the proper conduct of Internet experiments, e.g. handling of dropout, unobtrusive naming of materials, and pre-testing. Several methods are presented that further increase the quality of Internet experiments and help to avoid frequent errors. These methods include the "seriousness check", "warm-up," "high hurdle," and "multiple site entry" techniques, control of multiple submissions, and control of motivational confounding. Finally, metadata from sites like WEXTOR (http://wextor.org) and the web experiment list (http://genpsylab-wexlist.uzh.ch/) are reported that show the current state of Internet-based research in terms of the distribution of fields, topics, and research designs used.

  19. Ethnicity, music experience, and depression.

    Science.gov (United States)

    Werner, Paul D; Swope, Alan J; Heide, Frederick J

    2009-01-01

    The researchers studied differences in self-reported music experience and depression across ethnic groups, as well as differences in the relationship between music experience and depression across groups. College participants (78 African Americans, 111 Asian Americans, 218 Whites, and 87 in other ethnic groups) completed the Music Experience Questionnaire (MEQ) and the Center for Epidemiological Studies Depression scale. Statistically significant differences across groups were found on depression as well as on the MEQ factor for Subjective/Physical Reactions to music and on MEQ scales for Commitment to Music, Affective Reactions, Positive Psychotropic Effects, and Reactive Musical Behavior. A distinctive pattern of relationship was found between music variables and depression in the Asian American group, relative to the White and Other group. In particular, among Asian Americans there were negative correlations between depression and the MEQ Subjective/ Physical Reactions factor as well as the Affective Reactions scale. Implications were discussed for the literature on ethnicity and depression, music experience, and music therapy.

  20. STS-107 Master Experiment List

    Science.gov (United States)

    2002-12-01

    A master list of the various experiments conducted aboard the STS-107 Space Mission is presented. The topics include: 1) Biology; 2) Earth and Space Sciences; 3) Physical Sciences; 4) Space Product Development; and 6) Technology Development.