WorldWideScience

Sample records for barns

  1. Det postmoderne barn

    DEFF Research Database (Denmark)

    Hansen, Ole Henrik

    2010-01-01

    Den nye psykologi fokuserer på dynamik og intersubjektivitet, mens den gamle var optaget af faser og udviklingstrin. Den postmoderne forståelse af det lille barn opfatter ikke faserne som aflåste, historiske sandheder, men som levende narrativer. Og så får det nye børnesyn indflydelse på Frode og...

  2. Greenhouse gas emissions from barn animals

    International Nuclear Information System (INIS)

    Ninety six per cent of the carbon dioxide produced by barn animals is generated through the act of breathing, with the remainder generated through their droppings. The author examined various sources of carbon dioxide emissions associated with barn animals, including the animals themselves, their droppings and heating systems for barns. A similar review was conducted for emissions of methane and nitrous oxide. The author proposed ways to reduce the production of carbon dioxide and methane by barn animals. 8 refs., 1 tab

  3. Barn i den fortettede byen

    OpenAIRE

    Cederkvist, Kjersti Prytz

    2010-01-01

    Problemstillingen i denne masteroppgaven er en liten del av det store problemkomplekset omkring bokvalitet og fortetting. Jeg har ønsket å undersøke sammenhengen mellom fortetting og oppvekstvilkår for barn i Oslo, og tatt for meg uterom i tilknytning til nye boligprosjekter. Utgangspunktet for oppgaven er en antagelse (hypotese) om at barn ofte blir den tapende part ved de prioriteringer som blir foretatt når nye boligprosjekter realiseres i en by under fortetting. Plan- og bygningsetaten(PB...

  4. Til forsvar for barns spontane lek

    Directory of Open Access Journals (Sweden)

    Einar Sundsdal

    2015-04-01

    Full Text Available Barndommens far, Jean-Jacques Rousseau (1712-1778, og senere, barnehagens grunnlegger, Friedrich Frøbel (1782-1852, var begge opptatt av barndom og barns mulighet til å tape tid. Dette ble betegnet som negativ pedagogikk og innebar blant annet at barn skulle fordrive tiden med det som passet for barn: lek. Barna skulle få holde på for seg selv, voksne skulle ikke bedrive undervisning, men la barn oppdage verden selv. Disse tankene har vært sentrale for vår moderne forestilling om barndom, og de har vært premissgivende for Barnekonvensjonen som slår fast at alle barn har rett til å leke. Også i dag har leken en sentral posisjon når vi snakker om barndom, men nå knyttes den til en forestilling om å vinne tid. Barn blir nå skjøvet fremover slik at de ikke skal kaste bort tiden - tape tiden - men utnytte den mest mulig effektivt med tanke på et fremtidig resultat. Denne logikken har bidratt til at FN i 2013 gikk ut og advarte om at barns rett til lek er truet. I denne artikkelen vil vi forfølge FNs forsvar for barns spontane lek. Vi vil gjøre dette blant annet ved å vise at lekens egenverdi står stadig sterkere innen en rekke forskningstradisjoner.

  5. Rodenticides in British barn owls.

    Science.gov (United States)

    Newton, I; Wyllie, I; Freestone, P

    1990-01-01

    Out of 145 Barn Owls found dead through accidents (66%), starvation (32%), shooting (2%) and poisoning (difenacoum or brodifacoum, in their livers. Difenacoum was in the range 0.005-0.106 microg g(-1) fresh weight, and brodifacoum was in the range 0.019-0.515 microg g(-1). Minimum levels of detection were about 0.005 microg g(-1) for both chemicals. Mice fed for 1 day on food containing difenacoum and brodifacoum died after 2-11 days. Within these mice residues were present at greater concentration in the liver than in the rest of the carcass. The mean mass of residue in a whole 35g mouse was estimated at 10.17 microg (range 4.73-20.65 microg) for difenacoum and 15.36 microg (range 8.07-26.55) for brodifacoum. Such poisoned mice were fed to Barn Owls for successive periods of 1, 3 and 6 days. All six owls fed on difenacoum-dosed mice survived all three treatments, in which up to an estimated 101.7 microg of difenacoum was consumed, and the coagulation times of their blood returned to near normal in less than 5-23 days. Four of the six owls fed on brodifacoum-dosed mice died 6-17 days after the 1-day treatment, but the survivors also survived the 3-day and 6-day treatments. Those that died had each eaten 3 mice, with a combined weight of about 105g and a total brodifacoum content of about 46.07 microg, which was equivalent to a dose of 0.150-0.182 mg kg(-1) of owl body weight. After death these owls had 0.63-1.25 micro g(-1) of brodifacoum in their livers. Blood from the survivors would not coagulate at 9 days post-treatment, but did so at 16 days in one bird and between 38 and 78 days in the other. It is concluded that: (1) Barn Owls in Britain are now widely exposed to second-generation rodenticides; (2) not all owls exposed to these chemicals are likely to receive a lethal dose; (3) brodifacoum is more toxic to owls than difenacoum; and (4) while there is yet no evidence that rodenticides have had any appreciable effect on Barn Owl populations in Britain, further

  6. Ernæring til premature barn

    OpenAIRE

    Von Køppen, Karin Helene

    2013-01-01

    Studien konkluderer med at ernæring er et område som er av stor betydning for premature barn. Metoder som NIDCAP har en positiv innvirkning på ernæringsstatusen til premature barn fordi overgangen fra sondeernæring til oral ernæring går lettere. Behovet for norske anbefalinger er nødvendig for å kunne tilby premature barn den optimale omsorgen som gjør at de har det beste utgangspunktet for å overleve utenfor mors liv.

  7. Kvinnors reflektioner kring beslutet att skaffa barn

    OpenAIRE

    Sandell, Annie

    2007-01-01

    Att bli mamma har alltid setts som ett självklart val för majoriteten av kvinnor. Det tillhör normen att en dag föda barn. Syftet med denna studie var att studera kvinnors reflektioner kring deras beslut att skaffa barn. Resultatet baserades på fem halvstrukturerade intervjuer som tolkades med induktiv tematisk analysmetod. Ett bekvämlighetsurval användes och de informanter som deltog var kvinnor som hade ett seriöst förhållande med en man. De hade ännu inte några barn men hade bestämt sig fö...

  8. Respiratory symptoms and functions in barn workers

    OpenAIRE

    Ege Gulec Balbay; Emine Banu Cakiroglu; Peri Arbak; Öner Balbay; Fatma Avcıoğlu; Abdullah Belada

    2014-01-01

    Introduction and aim. The presented study was undertaken to investigate the respiratory health problems in family barns with one or more cows and at least one family member working in the barn. Methods. 150 workers (128 female, 22 male) from 4 villages of Yığılca district near the city of Düzce in north-west Turkey were enrolled in this study between October – December 2011. An Occupational and Environmental Chest Diseases questionnaire developed by the American Thoracic Society, pulmonary...

  9. SETTINGS IN THE NOVELS OF JULIAN BARNES

    OpenAIRE

    Gajanan N. Katkar

    2013-01-01

    Julian Barnes was born in Leicester, England's East midland, on January 19,1946 in the family of a teacher. His father, Albert taught French at st. Clement Danesfrom 1937 onwards till his retirement in 1971. His mother, Keye, also taught French. Hiselder brother, Jonathan is now a Professor of Philosophy in Geneva. He married PatKavanagh in 1979, and now lives with her in North London.

  10. Julian Barnes: A Significant Contmporary Novelist

    OpenAIRE

    Gajanan N. Katkar

    2012-01-01

    Julian Barnes was born in Leicester, England's East midland, on January 19, 1946 in the family of a teacher. His father, Albert taught French at st. Clement Danes from 1937 onwards till his retirement in 1971. His mother, Keye, also taught French. His elder brother, Jonathan is now a Professor of Philosophy in Geneva.He married Pat Kavanagh in 1979, and now lives with her in North London.

  11. Det sunde, overvægtige barn

    DEFF Research Database (Denmark)

    From, Ditte-Marie

    kommunale sundhedskurser. Men hvad sker der, når en biomedicinsk sundhedsopfattelse møder det overvægtige barn i en hverdagslivssammenhæng? Hvor meget handler sundhed f.eks. om at besidde tilstrækkelige mængder af viden om mad og motion? Og hvad er mulighederne for at være en god borger, selvom man er et...

  12. Barnkonventionen och ansvarsfördelningen mellan barn och vuxna

    DEFF Research Database (Denmark)

    Stolz, Pauline

    2011-01-01

    Barn- och utbildningspolitik är, precis som andra former av politik, redskap som politiker använder sig av för att uppnå social förändring. Barn används därmed av politiker och andra vuxna i utbildningspolitiska sammanhang för att förändra samhället i en viss riktning. Barn kan i politiska diskus...

  13. A Second Look at Douglas Barnes's "From Communication to Curriculum"

    Science.gov (United States)

    Yarker, Patrick

    2016-01-01

    This article revisits Douglas Barnes's book-length exploration of the implications for teachers of a constructivist epistemology, notably in relation to the importance of small-group talk in classrooms. Empirically based consideration of small-group exploratory pupil-pupil talk enabled Barnes to reveal the learning strategies such a context…

  14. A survey of Italian compost dairy barns

    Directory of Open Access Journals (Sweden)

    Lorenzo Leso

    2013-12-01

    Full Text Available Compost-bedded pack barns (CBPB, generally known as compost dairy barns, are alternative housing systems for dairy cows. In these barns, the whole surface of the resting area is covered with a deepbedded pack that is frequently stirred in order to incorporate fresh manure into the pack and to enhance the evaporation of water. Experiences with CBPB for dairy cows are reported in literature from the US, Israel, the Netherlands and Austria. Potential advantages of these housing systems regard animal welfare and manure management. Since 2006, this housing system has been widely applied in Italy. However, there is still little scientific knowledge available about Italian CBPB. This study aims to describe the housing system, assess producers’ satisfaction and measure performance of dairy cows housed in CBPB. Ten commercial dairy farms in northern Italy were involved in the study. All pens in each farm were surveyed to determine the total available surface area, bedded area and pack depth. A questionnaire was submitted to each farm manager in order to investigate management practices, labour requirement, amount of bedding materials used and producers’ satisfaction. The temperature of the bedded pack was measured in summer and in winter. Data from the Italian Dairy Association were collected for each herd over a period of one year (from September 2011 to September 2012. In the barns involved in the study, the average total available area was 10.9 m2/cow and the average pack area was 6.7 m2/cow. The bedded pack was aerated 1.4 times per day.The most commonly used bedding material in these farms was dry sawdust. The consumption of bedding materials was 8.1 m3/cow per year. A tendency towards inverse correlation was found between the space per cow and the amount of bedding needed per cow (R2=0.395; P=0.051. Operations related to pack management required 4.1 hours of labour per cow per year. A direct relationship was found between the bedded area space

  15. Midwest cousins of Barnes-Wall lattices

    OpenAIRE

    Griess Jr., Robert L.

    2009-01-01

    Given a rational lattice and suitable set of linear transformations, we construct a cousin lattice. Sufficient conditions are given for integrality, evenness and unimodularity. When the input is a Barnes-Wall lattice, we get multi-parameter series of cousins. There is a subseries consisting of unimodular lattices which have ranks $2^{d-1}\\pm 2^{d-k-1}$, for odd integers $d\\ge 3$ and integers $k=1,2, ..., \\frac {d-1}2$. Their minimum norms are moderately high: $2^{\\lfloor \\frac d2 \\rfloor -1}$.

  16. Visual search in barn owls: from feature to conjunction search

    OpenAIRE

    Orlowski, Julius

    2015-01-01

    Visual search is the process of searching for something interesting in a cluttered environment. It is well studied in humans, but not in non-primate species. This study provides a comprehensive overview of visual search in barn owls using a novel methodology: the OwlCam. The OwlCam is a tiny, lightweight camera that can be mounted onto the head of barn owls to record first person videos from these birds. Due to the very limited eye movements of barn owls this provides an easy method of gaze t...

  17. 22 Matt Barnes 再出发

    Institute of Scientific and Technical Information of China (English)

    Husky

    2008-01-01

    太阳队·前锋·201厘米·28岁上季成绩·6.7分·42.3%投篮·4.4篮板如果你是我们的忠实读者,就会发现巴恩斯(Matt Barnes)在过去13个月内已经第三度登上这个单元了。究竟,这位生涯单季平均得分从没超过10分的球员,有何值得我们一再报导的地方呢?

  18. Marknadsföring till barn : Etik och ansvar

    OpenAIRE

    Haire, Miranda

    2013-01-01

    Detta examensarbete handlar om marknadsföring till barn, samt etiken och ansvaret kring ämnet. Ansvaret ligger mestadels hos marknadsförarna och föräldrarna. Marknadsföring till barn bedöms strängare av juridiska bestämmelser än vanlig marknadsföring, eftersom att barn är mera mottagliga och inte har samma erfarenhet som vuxna. Syftet med detta examensarbete är att få fram allmänt om marknadsföring till barn, etiska frågeställningar, samhällsansvaret samt ansvaret hos marknadsförare, föräldra...

  19. Carol A. Barnes: Award for Distinguished Scientific Contributions.

    Science.gov (United States)

    2014-11-01

    The APA Awards for Distinguished Scientific Contributions are presented to persons who, in the opinion of the Committee on Scientific Awards, have made distinguished theoretical or empirical contributions to basic research in psychology. One of the 2014 award winners is Carol A. Barnes, who received this award for her "groundbreaking work on the neurobiological mechanisms underlying memory changes in normal aging." Barnes' award citation, biography, and a selected bibliography are presented here. PMID:25486138

  20. A Dominance Hierarchy of Auditory Spatial Cues in Barn Owls

    OpenAIRE

    Witten, Ilana B.; Phyllis F Knudsen; Knudsen, Eric I.

    2010-01-01

    BACKGROUND: Barn owls integrate spatial information across frequency channels to localize sounds in space. METHODOLOGY/PRINCIPAL FINDINGS: We presented barn owls with synchronous sounds that contained different bands of frequencies (3-5 kHz and 7-9 kHz) from different locations in space. When the owls were confronted with the conflicting localization cues from two synchronous sounds of equal level, their orienting responses were dominated by one of the sounds: they oriented toward the locatio...

  1. Optimal models of sound localization by barn owls

    OpenAIRE

    Fischer, Brian J

    2009-01-01

    Sound localization by barn owls is commonly modeled as a matching procedure where localization cues derived from auditory inputs are compared to stored templates. While the matching models can explain properties of neural responses, no model explains how the owl resolves spatial ambiguity in the localization cues to produce accurate localization for sources near the center of gaze. Here, I examine two models for the barn owl’s sound localization behavior. First, I consider a maximum likeli...

  2. Hva kan barnehagen bidra med til barn som har opplevd samlivsbrudd?

    OpenAIRE

    Størksen, Ingunn

    2008-01-01

    Hvert år opplever mange norske barn samlivsbrudd. Internasjonale og norske studier viser at barn som har opplevd samlivsbrudd er i større risiko for ulike psykososiale problemer enn andre barn. Tidligere norske studier og tiltak omkring barn og samlivsbrudd har i hovedsak vært rettet mot barn og ungdom i skolen. På bakgrunn av forskning fra andre land vil jeg i denne artikkelen presentere mulige konsekvenser blant yngre barn som har opplevd samlivsbrudd. Videre vil jeg gå igjennom noen mulige...

  3. Otoacoustic interrelationships of the barn owl

    Science.gov (United States)

    Bergevin, Christopher; Manley, Geoffrey A.; Köppl, Christine

    2015-12-01

    Significant debate still exists about the biophysical mechanisms at work in otoacoustic emission (OAE) generation and how such may differ between mammals and non-mammals given gross morphological differences (e.g., existence of basilar membrane traveling waves, degree of tectorial membrane coupling). To further elucidate general principles at work, we examined the barn owl for interrelationships between spontaneous emissions (SOAEs) and those evoked using a single tone (SFOAEs). First, most ears exhibited SOAEs as a stable periodic `rippling' whose peak-to-peak spacing was relatively constant (˜0.4 kHz). Some ears showed substantially larger narrowband peaks, although their statistical distributions were highly noisy. Second, significant interactions between a low-level tone and SOAE activity were observed via an interference pattern as the tone frequency was swept. Using a suppression paradigm to extract SFOAEs as the residual, the magnitude exhibited a stable pattern of peaks and valleys unique to each ear. Third, SFOAE phase exhibited significant accumulation as frequency was swept, with a phase-gradient delay of approximately 2 ms that was constant across frequency. The amount of SFOAE phase accumulation between adjacent SOAE peaks tended to cluster about an integral number of cycles, as previously observed for humans. Taken together, our data suggest that the principles underlying how active hair cells work together (e.g., entrainment, phase coherence) are shared between widely different inner ear morphologies, leading to the generation of OAEs with similar properties.

  4. Adaptation potential of naturally ventilated barns to high temperature extremes: The OptiBarn project

    Science.gov (United States)

    Menz, Christoph

    2016-04-01

    Climate change interferes with various aspects of the socio-economic system. One important aspect is its influence on animal husbandry, especially dairy faming. Dairy cows are usually kept in naturally ventilated barns (NVBs) which are particular vulnerable to extreme events due to their low adaptation capabilities. An effective adaptation to high outdoor temperatures for example, is only possible under certain wind and humidity conditions. High temperature extremes are expected to increase in number and strength under climate change. To assess the impact of this change on NVBs and dairy cows also the changes in wind and humidity needs to be considered. Hence we need to consider the multivariate structure of future temperature extremes. The OptiBarn project aims to develop sustainable adaptation strategies for dairy housings under climate change for Europe, by considering the multivariate structure of high temperature extremes. In a first step we identify various multivariate high temperature extremes for three core regions in Europe. With respect to dairy cows in NVBs we will focus on the wind and humidity field during high temperature events. In a second step we will use the CORDEX-EUR-11 ensemble to evaluate the capability of the RCMs to model such events and assess their future change potential. By transferring the outdoor conditions to indoor climate and animal wellbeing the results of this assessment can be used to develop technical, architectural and animal specific adaptation strategies for high temperature extremes.

  5. Greenhouse gas emissions from naturally ventilated freestall dairy barns

    Science.gov (United States)

    Joo, H. S.; Ndegwa, P. M.; Heber, A. J.; Ni, J.-Q.; Bogan, B. W.; Ramirez-Dorronsoro, J. C.; Cortus, E.

    2015-02-01

    Greenhouse gas (GHG) emissions from two naturally-ventilated dairy freestall barns measured for a total of 21 d, one week each in May, July, and September 2009, are presented in this article. The holding capacity of Barn 1 (B1) was 400 Holstein cows, while that for Barn 2 (B2) was 850 cows. Air samples were taken from inlets and outlets of the barns via a custom made multiplexer gas sampling system for measurement of gas concentrations using a photoacoustic infrared multigas analyzer. Barn ventilation rates were based on air velocity measured with arrays of 3-D ultrasonic anemometers at inlets and outlets. Gas concentrations (10 min means) in the barns ranged from: 443-789 ppm for CO2, 0.0-39.4 ppm for CH4, and 0.25-0.39 ppm for N2O; with mean concentrations ranging from 6 to 20%, 0 to 4%, and 26 to 180% above the average background concentrations for CO2, N2O, and CH4, respectively. The correlations between CO2 and CH4 enhanced concentrations were relatively stronger (R of 0.67-0.74) than between CO2 and N2O enhanced concentrations (R of 0.10-0.20). Environmental conditions did not significantly (p = 0.46) impact the enhanced concentrations of N2O in the barns. All three parameters (T, RH, and v) had significant (p CO2 enhanced concentrations; while only T (p CO2 and CH4 correlated negatively with all three parameters. The influence of the temperature-humidity index (THI) on CO2 enhanced concentrations was higher than that of v; while the effect v had on CH4 enhanced concentrations was slightly higher than that of the temperature-humidity index. The average emissions, based on hourly means, ranged from 5.3 to 10.7 kg d-1 AU-1 for CO2; 0.3 to 2.5 g d-1 AU-1 for N2O; and between 67 and 252 g d-1 AU-1 for CH4. Nitrous oxide emissions from the smaller barn, B1 (0.4-2.5 g d-1 AU-1), were significantly higher than from the larger barn, B2 (0.3-0.5 g d-1 AU-1) most probably because 50% of B1 was open (no stalls) loose dirt floor.

  6. MBsums. A Mathematica package for the representation of Mellin-Barnes integrals by multiple sums

    Energy Technology Data Exchange (ETDEWEB)

    Ochman, Michal; Riemann, Tord

    2015-11-15

    Feynman integrals may be represented by the Mathematica package AMBRE and MB as multiple Mellin-Barnes integrals. With the Mathematica package MBsums we transform these Mellin-Barnes integrals into multiple sums.

  7. MBsums - a Mathematica package for the representation of Mellin-Barnes integrals by multiple sums

    CERN Document Server

    Ochman, Michal

    2015-01-01

    Feynman integrals may be represented by the Mathematica packages AMBRE and MB as multiple Mellin-Barnes integrals. With the Mathematica package MBsums these Mellin-Barnes integrals are transformed into multiple sums.

  8. REDESIGN OF COMMONLY USED TOBACCO CURING BARNS IN ZIMBABWE FOR INCREASED ENERGY EFFICIENCY

    Directory of Open Access Journals (Sweden)

    SPECIAL MUSONI

    2013-03-01

    Full Text Available In Zimbabwe two types of barns are commonly used for tobacco curing, namely the traditional and Rocket barns. The traditional barn and the Rocket Barn loose 98.5% and 55.6% of the energy supplied respectively. The latter is 43.6% more thermally efficient than the traditional barn. There is, however, potential of increasing the energy efficiency of both barns. In this study, a design that incorporates structural changes to reduce heat loss as well as recovery of heat was developed. The design is a combination of commercially available components, and allows for ventilation heat re-use and increased heat transfer from furnace ducts to the drying chamber. The structure was found to be 54.7% more thermally efficient than the Rocket barn and 74.2% more efficient than the traditional barn. The new design needs to be field-tested so that it can be adopted by tobacco farmers.

  9. Lung responses to secondary endotoxin challenge in rats exposed to pig barn air

    OpenAIRE

    Townsend Hugh GG; Aulakh Gurpreet K; Keet Taryn; Charavaryamath Chandrashekhar; Singh Baljit

    2008-01-01

    Abstract Background Swine barn air contains endotoxin and many other noxious agents. Single or multiple exposures to pig barn air induces lung inflammation and loss of lung function. However, we do not know the effect of exposure to pig barn air on inflammatory response in the lungs following a secondary infection. Therefore, we tested a hypothesis that single or multiple exposures to barn air will result in exaggerated lung inflammation in response to a secondary insult with Escherichia coli...

  10. Economic evaluation of biological rodent control using barn owls Tyto alba in alfalfa

    OpenAIRE

    Motro, Y.

    2011-01-01

    Rodents are common pests in various agricultural cultivations. Utilization of barn owls for rodent pest control has long been used. In Israel, the indirect effect of barn owl predation pressure on alfalfa crop yield has been examined. Using radio-telemetry, barn owls were tracked to form a density-distance function, which was later used to estimate predation pressure on whole fields. This function was utilized on all barn owls nesting in the vicinity to assess accumulated predation pressure o...

  11. Design methodology for the robotic milking barn : modelling, simulation, validation and optimization

    NARCIS (Netherlands)

    Halachmi, I.

    1999-01-01

    The traditional barn design is a milking parlour oriented. To integrate a milking robot the barn should be redesigned according to the robotic milking concept. The entire system (barn design, feeding and cow-traffic routines, management practices) should encourage 'voluntary milking', i.e., it shoul

  12. Pragmatiske ferdigheter hos barn med cochleaimplantat : - belyst ved et kasusstudie

    OpenAIRE

    2008-01-01

    Pragmatiske ferdigheter hos barn med cochleaimplantat - belyst ved et kasusstudie. Bakgrunn: Cochleaimplantat (CI) er et høreapparat som gir sterkt hørselshemmede muligheten til å oppfatte lyd. Elektroder implanteres i sneglehuset (cochlea) og stimulerer hørselsnerven direkte (MED-EL 2006, Waltzman 2005). Forskning rundt barn med CI og deres språkutvikling har hovedsakelig vært konsentrert rundt de lingvistiske sidene ved språket (Thoutenhoofd m. fl. 2005). Like viktig vil det være å se p...

  13. John Dewey's Socially Instrumental Practice at the Barnes Foundation and the Role of "Transferred Values" in Aesthetic Experience

    Science.gov (United States)

    Johnson, Margaret Hess

    2012-01-01

    When Albert Barnes established an art education program at the Barnes Foundation in 1924, he asked John Dewey to become the first president and director of education. Barnes and Dewey enjoyed a sustained and fruitful relationship with regard to aesthetic experience and scientific theory as applied to education. Barnes and Dewey shared a serious…

  14. Barn owl productivity responses to fluctuating vole populations

    Czech Academy of Sciences Publication Activity Database

    Pavluvčík, P.; Poprach, K.; Machar, I.; Losík, J.; Gouveia, A.; Tkadlec, Emil

    Brno: Ústav biologie obratlovců AV ČR, 2015 - (Bryja, J.; Řehák, Z.; Zukal, J.). s. 187 ISBN 978-80-87189-18-4. [Zoologické dny. 12.02.2015-13.02.2015, Brno] Institutional support: RVO:68081766 Keywords : barn owl * common vole Subject RIV: EG - Zoology

  15. Barn music at St Donat's castle / Philip Gross

    Index Scriptorium Estoniae

    Gross, Philip, 1952-

    2011-01-01

    Muusikafestivalist "Vale of Glamorgan", mis oli 2010. a. pühendatud Arvo Pärdile. Eesti kammermuusikaansambli Resonabilis kavas oli ka festivali tellimusel valminud uelsi helilooja Gareth Peredur Churchilli "Vocable", mille teksti kirjutas Philip Gross. Festivalikontsertide muljeid leiab Grossi luuletsüklis "Barn music" (avaldatud samas ajakirjanumbris, lk. 42-43)

  16. Aeroallergens in dairy barns near Cooperstown, New York and Rochester, Minnesota

    International Nuclear Information System (INIS)

    We sampled atmospheric barn air using a volumetric air sampler in ten barns near Cooperstown, NY and six barns near Rochester, MN, and, with radioimmunoassays, measured allergens of Aspergillus fumigatus, Thermoactinomyces vulgaris, Micropolyspori faeni, short ragweed, rye grass group I pollen, Alternaria (Alt-1), Dermatophagoides sp. Lepidoglyphus destructor, common insect allergen, mouse urine, rat urine, and cattle epithelium. The most abundant allergen present was A. fumigatus followed by L. destructor. This study provides initial data on barn aerobiology and demonstrates for the first time the abundance of L. destructor allergens in North American dairy barns. More comprehensive study of barns, poultry houses, confinement houses for swine, and other agricultural environments from various geographic locations is needed to define the allergen levels to which millions of farm workers are exposed each day. While most of the allergens were expected, the presence of airborne allergens reactive with antisera to Dermatophagoides suggests indirectly that substantial amounts of pyroglyphid mites are present in some barns

  17. Drinking and Cleaning Water Use in a Dairy Cow Barn

    Directory of Open Access Journals (Sweden)

    Michael Krauß

    2016-07-01

    Full Text Available Water is used in dairy farming for producing feed, watering the animals, and cleaning and disinfecting barns and equipment. The objective of this study was to investigate the drinking and cleaning water use in a dairy cow barn. The water use was measured on a well-managed commercial dairy farm in North-East Germany. Thirty-eight water meters were installed in a barn with 176 cows and two milking systems (an automatic milking system and a herringbone parlour. Their counts were logged hourly over 806 days. On average, the cows in the automatic milking system used 91.1 (SD 14.3 L drinking water per cow per day, while those in the herringbone parlour used 54.4 (SD 5.3 L per cow per day. The cows drink most of the water during the hours of (natural and artificial light in the barn. Previously published regression functions of drinking water intake of the cows were reviewed and a new regression function based on the ambient temperature and the milk yield was developed (drinking water intake (L per cow per day = −27.937 + 0.49 × mean temperature + 3.15 × milk yield (R2 = 0.67. The cleaning water demand had a mean of 28.6 (SD 14.8 L per cow per day in the automatic milking system, and a mean of 33.8 (SD 14.1 L per cow per day in the herringbone parlour. These findings show that the total technical water use in the barn makes only a minor contribution to water use in dairy farming compared with the water use for feed production.

  18. Dismantling of Biological Agricultural Reactor Netherlands (BARN)

    International Nuclear Information System (INIS)

    The Biological Agricultural Reactor (BARN) was built in 1962 by government order through the Institute for Atomic Science in Agriculture (ITAL) in the Netherlands. The idea to build this nuclear reactor especially for biological research purposes was grown out of the first international conference about peaceful application of atomic energy hold in 1955. The construction composed of a basin reactor with light water as moderator and cooling medium. Up to 90% enriched Uranium was used as fuel. The maximal power was 100 kW. The reactor was used for research in the field of plant reproduction and other biological research. Mainly because of disappointing scientific results in 1978, 15 years after the start, the decision was made to terminate the reactor process following by dismantling. Alternative techniques proved to give comparative results at lower costs. In the decision making process political considerations played an important role. Prior to dismantling the reactor the 26 fuel elements were removed. Beside the uranium-235 each element contains about 1.3 TBq of fission and activation products. In 1982 the elements were shipped tot the Savannah River Plant in United States. An extensive analyze was carried out to map out the activation products on basis of neutron flux data, radiation history and composition of the materials. Results of this study was used to predict the dose rate of the different activated items and consequently to reduce risks of handling the items. For several reasons (e.g. control of building, knowledge of the plant) in 1996 a project has been initiated to remove all the active materials form the building and to recover the place to the original state, i.e. forest. High radioactive items with large dimensions were transferred to the so-called 'hot cells' of the ECN and were cut into small pieces. Finally all the activated material was brought to the COVRA for end storage. Parts of the basin construction were highly activated and were removed

  19. Practical considerations for ventilating calf barns in winter.

    Science.gov (United States)

    Nordlund, Kenneth V

    2008-03-01

    The use of air sampling devices to measure the concentrations of airborne bacteria in clinical investigations and research trials in calf barns has indicated that traditional systems of ventilation are problematic in cold weather. Individual pen designs should have two solid sides, but the front and rear should be as open as possible. Thermal stress should be managed by providing deep bedding and not by enclosing the pen. Air hygiene can be improved by reducing stocking density and using supplemental positive-pressure ventilation systems to deliver small amounts of air to each pen. Implementation of these recommendations can produce calf barns that seem to equal calf hutches in minimizing disease and provide better working conditions for the caregivers. PMID:18299031

  20. Barns bilder av staden : Minecraft, preferenser och lek

    OpenAIRE

    Karlsson, Eva

    2015-01-01

    Barnperspektivet inom fysisk planering har fått större uppmärksamhet de senaste decennierna, och då barns åsikter om miljöer har visat sig vara viktiga men svåra för planerare att tolka testas ständigt nya dialogmetoder för att kommunicera med barn. De senaste åren har datorspelet Minecraft börjat användas för detta, där barnen själva får visualisera och gestalta sina stadsbilder. Detta innebär att tolkningen av dessa bilder sker senare i skaparprocessen än vid annan dialog, varvid frågor om ...

  1. Barn owl (Tyto alba) siblings vocally negotiate resources.

    OpenAIRE

    Roulin, A; Kölliker, M; Richner, H.

    2000-01-01

    Current theory proposes that nestlings beg to signal hunger level to parents honestly, or that siblings compete by escalating begging to attract the attention of parents. Although begging is assumed to be directed at parents, barn owl (Tyto alba) nestlings vocalize in the presence but also in the absence of the parents. Applying the theory of asymmetrical contests we experimentally tested three predictions of the novel hypothesis that in the absence of the parents siblings vocally settle cont...

  2. The occurrence of reptiles in Barn Owl diet in Europe

    OpenAIRE

    Roulin A.; Dubey S

    2012-01-01

    Capsule We present a review of the propensity to eat reptiles in the Barn Owl Tyto alba in Europe. Based on the analysis of 591 published studies reporting 3.07 million prey items identified in pellets, only 2402 reptiles (0.08%) were found. Reptiles were most often captured in southern parts of the European continent and on islands. A large proportion of the 1304 identified reptiles to the species level were nocturnal Gekkonidae (77.1%).

  3. Visual-auditory integration for visual search: a behavioral study in barn owls

    OpenAIRE

    Yael eHazan; Inna eYarin; Yonatan eKra; Hermann eWagner; Yoram eGutfreund

    2015-01-01

    Barn owls are nocturnal predators that rely on both vision and hearing for survival. The optic tectum of barn owls, a midbrain structure involved in selective attention, has been used as a model for studying visual- auditory integration at the neuronal level. However, behavioral data on visual- auditory integration in barn owls are lacking. The goal of this study was to examine if the integration of visual and auditory signals contributes to the process of guiding attention towards salient st...

  4. Design methodology for the robotic milking barn : modelling, simulation, validation and optimization

    OpenAIRE

    Halachmi, I.

    1999-01-01

    The traditional barn design is a milking parlour oriented. To integrate a milking robot the barn should be redesigned according to the robotic milking concept. The entire system (barn design, feeding and cow-traffic routines, management practices) should encourage 'voluntary milking', i.e., it should ensure sufficiently frequent visits of the cow to the robot.An optimal layout should balance animal welfare, on the one hand, and the economic need for high facility utilisation, on the other han...

  5. EMDR-behandling  : Barns och ungdomars upplevelser en kvalitetssäkringsstudie 

    OpenAIRE

    Fredin, Ingela

    2005-01-01

    Föreliggande studie är dels ett led i att kvalitetssäkra EMDR (Eye Movement Desensitization and Reprocessing) som behandlingsmetod för barn och ungdomar och dels att utröna om behandlingen bidragit till ett förbättrat mående. EMDR som behandlingsmetod för barn och ungdomar har stöd i kontrollerade studier, men ytterligare forskning behövs. I den här studien deltog åtta barn och ungdomar med varierande diagnoser, vilka fått EMDR-behandling i barn- och ungdomspsykiatrisk öppenvård. Behandlingen...

  6. Taleteknologi for barn. En kvalitativ studie av fagpersoners erfaringer med kommunikasjonsmateriellet Pegasus.

    OpenAIRE

    Stølen, Mari

    2015-01-01

    Denne studien handler om alternativ og supplerende kommunikasjon, og har sett nærmere på taleteknologi for barn og kommunikasjonsmateriellet Pegasus. Barn med kommunikasjonsvansker har ikke samme forutsetninger som barn med typisk utvikling til å delta i sosialt samspill. Pegasus er utviklet for å hjelpe disse barna til å bli mer aktive i kommunikasjon, lek og samspill med andre. Formålet med studien var å undersøke erfaringer med å bruke Pegasus i samspill med barn med kommunikasjonsvansker....

  7. Air quality in barns for milk-fed calves

    International Nuclear Information System (INIS)

    Seventy per cent of the veal produced in Canada comes from Quebec. This paper reported on the air quality in barns used for milk-fed calves. It is known that air quality inside livestock buildings has an impact on both workers and animals, particularly in winter when air circulation is reduced. In this study, air quality inside barns was studied during the winter, spring and summer. Three types of barns with 3 different types of ventilation typically found in Quebec were evaluated. These included those with preheated corridors, lateral air entries, and central chimneys. Gases were measured in order to determine concentrations and emissions of: ammonia (NH3) which is toxic, colourless and flammable; hydrogen sulfide (H2S) which is very toxic, flammable; carbon dioxide (CO2) which is colourless and odourless; nitrous oxide (N2O) which is colourless and flammable, but harmless to health in the short-term; carbon monoxide (CO) which is colourless, odourless and flammable; and methane (CH4) which is the principal constituent released by animals, and is also colourless, odourless and extremely flammable. When exposed to air, both methane and carbon monoxide can produce an explosive mix especially in an enclosed area. Bacteria, mold, endotoxins, and dust are also present in barns. Samples of gases were analyzed with the help of different portable apparatuses. Results revealed that there are no significant problems with air quality in barns used for milk-fed calves in Quebec. It was determined that the inside temperature was appropriate even during summer periods, and although the relative humidity was higher than the recommended values for the care and handling of farm animals, it was still acceptable. In winter, ammonia was the only gas present in concentrations that reached values of weighted average exposure. Also, concentrations of bacteria were higher during winter. It was suggested that better air ventilation during the winter period would lower ammonia and bacteria

  8. BARNS DELAKTIGHET I FÖRSKOLAN – PÅ DE VUXNAS VILLKOR? : Förskollärares uppfattningar om barns delaktighet i förskolans vardag.

    OpenAIRE

    Eriksson, Anette

    2007-01-01

    SAMMANFATTNING Anette Eriksson Barns delaktighet i förskolan – är den villkorad av de vuxna? - Förskollärares uppfattningar om barns delaktighet i förskolans vardag. Vårterminen 2007 Antal sidor 59 Syftet med denna studie var att undersöka, analysera och beskriva hur förskollärare uppfattar delaktighet i förskolans vardag. En litteratursökning visade att det fanns få studier avseende förskollärares uppfattningar om barns delaktighet i förskolan. Studien är kvalitativ med en innehållsanalys oc...

  9. Barnes Ice Cap South Dome Trilateration Net Survey Data 1970-1984

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Barnes Ice Cap data set contains survey measurements of a network of 43 stakes along a 10 km flow line on the northeast flank of the south dome of the Barnes...

  10. The Stokes Phenomenon, Borel Summation and Mellin-Barnes Regularisation

    CERN Document Server

    Kowalenko, Victor

    2009-01-01

    The Stokes phenomenon refers to the emergence of jump discontinuities in asymptotic expansions at specific rays in the complex plane. This book presents a radical theory for the phenomenon by introducing the concept of regularization. Two methods of regularization, Borel summation and Mellin-Barnes regularization, are used to derive general expressions for the regularized values of asymptotic expansions throughout the complex plane. Though different, both yield identical values, which, where possible, agree with the original functions. Consequently, asymptotics has been elevated to a true disc

  11. Tannin extracts abate ammonia emissions from simulated dairy barn floors.

    Science.gov (United States)

    Powell, J M; Aguerre, M J; Wattiaux, M A

    2011-01-01

    Feeding more tannin and less crude protein (CP) to dairy cows may have synergistic impacts on reducing NH emissions from dairy barns. Three trials using lab-scale ventilated chambers with concrete floors were conducted to determine the impacts on NH emission of tannin and CP feeding, tannin feeding on urease activity in feces, and tannin application directly to the barn floor. For Trial 1, mixtures of feces and urine from lactating Holstein dairy cows () fed four levels (g kg) of dietary tannin extract [a mixture from red quebracho () and chestnut () trees]: 0 tannin (0T), 4.5 (low tannin [LT]), 9.0 (medium tannin [MT]), and 18.0 (high tannin [HT]); each fed at two levels (g kg) of dietary CP: 155 low CP (LCP) and 168 high CP (HCP) were applied to chambers. For Trial 2, urea solution was added to feces obtained from cows fed 0T, MT, and HT at HCP. For Trial 3, tannin amounts equivalent to those fed at 0T, MT, and HT were applied directly to feces-urine mixtures from 0T-HCP. For all trials, NH emissions were measured 1, 3, 6, 12, 24, 36, and 48 h after treatment application. For Trial 1, reductions in NH emission due to tannin feeding were greatest when fed at LCP: The LCP-LT and LCP-HT treatments emitted 30.6% less NH than LCP-0T, and the HCP-LT and HCP-HT treatments emitted 16.3% less NH than HCP-0T. For Trial 2, feeding tannin decreased urease activity in feces, resulting in an 11.5% reduction in cumulative NH loss. For Trial 3, the application of tannin directly to simulated barn floors also apparently decreased urease activity, resulting in an average reduction in cumulative NH emissions of 19.0%. Larger-scale trails are required to ascertain the effectiveness of tannin extracts in abating NH loss from dairy barn floors. PMID:21546676

  12. Oppdragelse etter intensivbehandling av barn : kan eksistensielle kriser endre oppdragelsen?

    OpenAIRE

    2005-01-01

    SAMMENDRAG Problemområdet: Når et barn blir akutt/kritisk syk og må intensivbehandles, er det godt mulig at foreldrene ved siden av sterke emosjoner, opplever en krise av eksistensiell art der spørsmål om livsverdier kan oppstå. Det kan være mulig at samspillet innad i familien og foreldrenes oppdragelsespraksis endres når familien kommer hjem. Min erfaring fra klinisk praksis, fra teori og forskningsartikler kan tyde på det. Målet er å få fram mulige utfordringer for familien etter at et ...

  13. Few-cosine spherical codes and Barnes-Wall lattices

    OpenAIRE

    Griess, Jr., Robert L.

    2006-01-01

    Using Barnes-Wall lattices and 1-cocycles on finite groups of monomial matrices, we give a procedure to construct tricosine spherical codes. This was inspired by a 14-dimensional code which Ballinger, Cohn, Giansiracusa and Morris discovered in studies of the universally optimal property. It has 64 vectors and cosines $-3/7, -1/7, 1/7$. We construct the {\\it Optimism Code}, a 4-cosine spherical code with 256 unit vectors in 16-dimensions. The cosines are $0, 1/4, -1/4, -1$. Its automorphism g...

  14. Lung responses to secondary endotoxin challenge in rats exposed to pig barn air

    Directory of Open Access Journals (Sweden)

    Townsend Hugh GG

    2008-10-01

    Full Text Available Abstract Background Swine barn air contains endotoxin and many other noxious agents. Single or multiple exposures to pig barn air induces lung inflammation and loss of lung function. However, we do not know the effect of exposure to pig barn air on inflammatory response in the lungs following a secondary infection. Therefore, we tested a hypothesis that single or multiple exposures to barn air will result in exaggerated lung inflammation in response to a secondary insult with Escherichia coli LPS (E. coli LPS. Methods We exposed Sprague-Dawley rats to ambient (N = 12 or swine barn air (N = 24 for one or five days and then half (N = 6/group of these rats received intravenous E. coli LPS challenge, observed for six hours and then euthanized to collect lung tissues for histology, immunohistochemistry and ELISA to assess lung inflammation. Results Compared to controls, histological signs of lung inflammation were evident in barn exposed rat lungs. Rats exposed to barn air for one or five days and challenged with E. coli LPS showed increased recruitment of granulocytes compared to those exposed only to the barn. Control, one and five day barn exposed rats that were challenged with E. coli LPS showed higher levels of IL-1β in the lungs compared to respective groups not challenged with E. coli LPS. The levels of TNF-α in the lungs did not differ among any of the groups. Control rats without E. coli LPS challenge showed higher levels of TGF-β2 compared to controls challenged with E. coli LPS. Conclusion These results show that lungs of rats exposed to pig barn air retain the ability to respond to E. coli LPS challenge.

  15. Moving Objects in the Barn Owl's Auditory World.

    Science.gov (United States)

    Langemann, Ulrike; Krumm, Bianca; Liebner, Katharina; Beutelmann, Rainer; Klump, Georg M

    2016-01-01

    Barn owls are keen hunters of moving prey. They have evolved an auditory system with impressive anatomical and physiological specializations for localizing their prey. Here we present behavioural data on the owl's sensitivity for discriminating acoustic motion direction in azimuth that, for the first time, allow a direct comparison of neuronal and perceptual sensitivity for acoustic motion in the same model species. We trained two birds to report a change in motion direction within a series of repeating wideband noise stimuli. For any trial the starting point, motion direction, velocity (53-2400°/s), duration (30-225 ms) and angular range (12-72°) of the noise sweeps were randomized. Each test stimulus had a motion direction being opposite to that of the reference stimuli. Stimuli were presented in the frontal or the lateral auditory space. The angular extent of the motion had a large effect on the owl's discrimination sensitivity allowing a better discrimination for a larger angular range of the motion. In contrast, stimulus velocity or stimulus duration had a smaller, although significant effect. Overall there was no difference in the owls' behavioural performance between "inward" noise sweeps (moving from lateral to frontal) compared to "outward" noise sweeps (moving from frontal to lateral). The owls did, however, respond more often to stimuli with changing motion direction in the frontal compared to the lateral space. The results of the behavioural experiments are discussed in relation to the neuronal representation of motion cues in the barn owl auditory midbrain. PMID:27080662

  16. Befrämjande av delaktighet hos barn - finns det en genusskillnad?

    OpenAIRE

    Aalto-Setälä, Kira

    2012-01-01

    Syftet med detta examensarbete är att ur ett genusperspektiv observera på vilka sätt barn bereds möjlighet till delaktighet vid fysisk aktivitet. Den teoretiska referensramen består av teorier om: könsmedvetenhet i verksamhet med barn, genus och könsroller, socialpedagogisk grundsyn, socialpedagogiskt förhållningssätt, bemötande och kommunikation samt ledarrollen och växelverkan. Frågeställningarna är: 1) På vilka sätt befrämjar ledarna barns delaktighet i fysisk aktivitet? och 2) Finns det e...

  17. Överviktiga barns upplevelser av hälsa och lidande

    OpenAIRE

    Ekstrand, Magnus; Ekstrand, Irina

    2010-01-01

    Bakgrund: I bakgrunden beskrivs viktiga begrepp som hälsa, lidande, övervikt, konsekvenser av övervikt, behandling, utsatthet och betydelse av aktivitet. Detta för att läsaren ska kunna förstå vidden av problemet. Studien kommer att inrikta sig på överviktiga barn och ungdomar.Problem: Övervikt hos barn och ungdomar är ett växande problem som leder till flera negativa konsekvenser, många fysiska men även psykiska, andliga och sociala.Syfte: Att beskriva överviktiga barn och ungdomars upplevel...

  18. The open-quotes Barn Bookclose quotes on-line

    International Nuclear Information System (INIS)

    Experimental nuclear reaction cross-section data are available free of charge through the National Nuclear Data Center (NNDC) On-line Service CSISRS database and may be written onto an Output file or viewed on the user's terminal either in the form of plots or as tabulated data. Evaluated data from the ENDF database may be included on the plots. A recent upgrade allows the user to plot the data in open-quotes Barn Bookclose quotes format. The NNDC on-line system may be accessed via telnet to BNLND2.DNE.BNL.GOV, password NNDC, or through the World Wide Web: http://www.nndc.bnl.gov. First-time users may browse the system using the authorization code GUEST

  19. Improvement of directionality and sound-localization by internal ear coupling in barn owls

    DEFF Research Database (Denmark)

    Wagner, Hermann; Christensen-Dalsgaard, Jakob; Kettler, Lutz;

    Mark Konishi was one of the first to quantify sound-localization capabilities in barn owls. He showed that frequencies between 3 and 10 kHz underlie precise sound localization in these birds, and that they derive spatial information from processing interaural time and interaural level differences....... However, despite intensive research during the last 40 years it is still unclear whether and how internal ear coupling contributes to sound localization in the barn owl. Here we investigated ear directionality in anesthetized birds with the help of laser vibrometry. Care was taken that anesthesia and the...... time difference in the low-frequency range, barn owls hesitate to approach prey or turn their heads when only low-frequency auditory information is present in a stimulus they receive. Thus, the barn-owl's sound localization system seems to be adapted to work best in frequency ranges where interaural...

  20. Barn i familjer med missbruksproblem : En kvalitativ studie om daghemmets roll när ett barn kommer från en familj med missbruksproblem

    OpenAIRE

    Ålgars, Emma

    2010-01-01

    Ämnesområdet och temat för mitt arbete är barn i familjer med missbruksproblem. Syftet med min studie är att förstå vad det som barn innebär att leva i en familj med missbruksproblem och att se vilka konsekvenser det har för barnet. Jag vill även få reda på vad man på daghem kan göra för att stöda barn samt deras föräldrar i familjer med missbruksproblem. Mina tre frågeställningar för arbetet är; Hur ser barnets situation ut i en familj med missbruksproblem? Hur kan man på daghem identifiera ...

  1. Is a new version of philosophical pragmatism necessary? A reply to Barnes-Holmes

    OpenAIRE

    Leigland, Sam

    2003-01-01

    Barnes-Holmes (2000) discussed certain issues regarding philosophy, pragmatism, and behavior analysis, and offered a “behavioral pragmatism” based on or derived from behavior-analytic perspectives. In a comparison of certain philosophical views, Quine's concept of observation sentences was employed for representing pragmatism, but this concept is not sufficiently representative of the literature of philosophical pragmatism to warrant the broad conclusions drawn by Barnes-Holmes. Further, alth...

  2. Developmental Changes Underlying the Formation of the Specialized Time Coding Circuits in Barn Owls (Tyto alba)

    OpenAIRE

    Kubke, M. Fabiana; Massoglia, Dino P.; Carr, Catherine E.

    2002-01-01

    Barn owls are capable of great accuracy in detecting the interaural time differences (ITDs) that underlie azimuthal sound localization. They compute ITDs in a circuit in nucleus laminaris (NL) that is reorganized with respect to birds like the chicken. The events that lead to the reorganization of the barn owl NL take place during embryonic development, shortly after the cochlear and laminaris nuclei have differentiated morphologically. At first the developing owl’s auditory brainstem exhibit...

  3. Designing the optimal robotic milking barn: applying a queuing network approach

    OpenAIRE

    Halachmi, I.; Adan, I. J. B. F.; Wal, J. van der; van Beek, P.; Heesterbeek, J.A.P.

    2003-01-01

    The design of various conventional dairy barns is based on centuries of experience, but there is hardly any experience with robotic milking barns (RMB). Furthermore, as each farmer has his own management practices, the optimal layout is 'site dependent'. A new universally applicable design methodology has been developed, to overcome this lack of experience with RMBs and to facilitate the designing of their optimal layout. This model for optimizing facility allocation, based on cow behaviour, ...

  4. The Air Quality in Transylvanian Dairy Barns with Tie-Stalls

    Directory of Open Access Journals (Sweden)

    POPESCU Silvana

    2010-12-01

    Full Text Available The aim of this work was to assess the quality of the air in dairy barns with tie-stalls, based on the total numberof mesophilic bacteria and on the concentrations of noxious gases (ammonia, carbon dioxide and hydrogen sulphide.We also studied the correlations between the main indicators of the air quality and the parameters of the microclimate(temperature, relative humidity and air flow velocity. Forty dairy cow barns were investigated in Transylvania in thecold season. The parameters were tested using specific methods. The numbers of the total mesophilic bacteria in the airvaried between 2.50 x 104 cfu/m3 and 3.36 x 105 cfu/m3, with a main value of 1.52 x 105 cfu/m3. The ammonia waspresent in all of the barns, having concentrations from 3.00 ppm to 37.00 ppm, with a mean value of 22.47 ppm.Ammonia exceeded the threshold limit in 57.5% of the investigated barns. The carbon dioxide was below the thresholdlimit in all of the barns and no hydrogen sulphide was found. Positive correlations were demonstrated between theammonia concentration and the air temperature (Spearman r = 0.451, p <0.05 and between the ammonia and therelative humidity of the air (Spearman r = 0.634, p <0.05. The air quality was low in more than a half of theinvestigated barns due the high concentration of the ammonia.

  5. En sammenligning av effekten av Ritalin, Dexedrine og placebo hos et utvalg barn og unge med diagnosen ADHD

    OpenAIRE

    2007-01-01

    Hensikten med denne studien var å sammenligne effekten av Ritalin og Dexedrine hos et utvalg barn med attention deficit/hyperactivity disorder (ADHD). Tidligere studier har funnet at ved å la hvert barn prøve begge medikamentene økes sannsynligheten for positiv effekt og reduserer sannsynligheten for bivirkninger. Noen barn responderer bra på Ritalin men ikke på Dexedrine, og omvendt. Denne studien har et randomisert dobbel-blind kryssover design der vi sammenligner Dexedrine, Ritalin og...

  6. Barnes maze performance of Octodon degus is gender dependent.

    Science.gov (United States)

    Popović, Natalija; Madrid, Juan Antonio; Rol, María Angeles; Caballero-Bleda, María; Popović, Miroljub

    2010-10-15

    Gender differences in spatial navigation have been widely reported in nocturnal rodent species. Here, for the first time we report gender differences in spatial learning and memory of Octodon degus, a long-lived diurnal hystricomorph rodent. In the present study, 16 months old male and female O. degus were tested in the 18-holes Barnes circular maze. The acquisition session consisted of four daily 4 min trials, during 10 days. Seven days later, the retention test was performed. To avoid the effect of hormonal fluctuation on spatial navigation, both the acquisition and the retention tests, were performed in 21-day regular cycling females in a period that corresponds to the diestrus phase of the estrus cycle. At the beginning of the acquisition, female degus were significantly slower than males to find the escape hole, but the situation reversed afterwards. Moreover, during the course of acquisition, females made significantly less reference memory errors, working memory errors as well as omission errors, than males. In both sexes, motivation and learning ceiling effects were reached at days 5-6 of the training. During the acquisition, females used more frequently a spatial strategy, while males preferably applied either serial, random or opposite strategies. The observed cognitive differences between male and female O. degus existed only during the acquisition period but not during the retention, indicating that acquisition and consolidation are differently influenced by gender. PMID:20385170

  7. Sleep and vigilance linked to melanism in wild barn owls.

    Science.gov (United States)

    Scriba, M F; Rattenborg, N C; Dreiss, A N; Vyssotski, A L; Roulin, A

    2014-10-01

    Understanding the function of variation in sleep requires studies in the natural ecological conditions in which sleep evolved. Sleep has an impact on individual performance and hence may integrate the costs and benefits of investing in processes that are sensitive to sleep, such as immunity or coping with stress. Because dark and pale melanic animals differentially regulate energy homeostasis, immunity and stress hormone levels, the amount and/or organization of sleep may covary with melanin-based colour. We show here that wild, cross-fostered nestling barn owls (Tyto alba) born from mothers displaying more black spots had shorter non-REM (rapid eye movement) sleep bouts, a shorter latency until the occurrence of REM sleep after a bout of wakefulness and more wakefulness bouts. In male nestlings, the same sleep traits also correlated with their own level of spotting. Because heavily spotted male nestlings and the offspring of heavily spotted biological mothers switched sleep-wakefulness states more frequently, we propose the hypothesis that they could be also behaviourally more vigilant. Accordingly, nestlings from mothers displaying many black spots looked more often towards the nest entrance where their parents bring food and towards their sibling against whom they compete. Owlets from heavily spotted mothers might invest more in vigilance, thereby possibly increasing associated costs due to sleep fragmentation. We conclude that different strategies of the regulation of brain activity have evolved and are correlated with melanin-based coloration. PMID:25056556

  8. Memory Revisited in Julian Barnes's "The Sense of an Ending"

    Directory of Open Access Journals (Sweden)

    Maricel Oró Piqueras

    2014-01-01

    Full Text Available An accumulation of years brings with it an accumulation of experiences. The revision of such experiences usually becomes more recurrent after retiremen t, a transition time from one period of life to another and, as such, a time in which we, human being s, have a tendency to take stock of our lives. This is actually one of the main issues present in Julian Barnes's last novel The Sense of an Ending (2011 . When the main protagonist, a retired man quite comfortable and contented with his present life, receives an unexpected inheritance from the mother of a girlfriend from his university years, he is forced to track down a part of his life that he had left a t the back of his mind a long time ago. As he explains his story, the protagonist and narrator of the novel raises a number of questions related to the quality and func tion of memory as one gets into old age . He experiments the unreliability of memory and questions to what extent me mory is constructed through the remembered emotions that invaded him over that episode of his life rather than through the events as they actually took place. On the other hand, the act of revisiting and revising that specific ep isode, brings with it feelings of guilt and remorse as the protagonist realises that his past acts were not as noble as he remembered them to be. However, these acts are part of the past and they cannot be changed; thus, another question that the novel rai ses is how to account for those actions of which one does not feel proud and, more importantly, how to manage those bad memories as one gets older.

  9. Memory Revisited in Julian Barnes's The Sense of an Ending

    Directory of Open Access Journals (Sweden)

    Maricel Oró Piqueras

    2014-02-01

    Full Text Available An accumulation of years brings with it an accumulation of experiences. The revision of such experiences usually becomes more recurrent after retirement, a transition time from one period of life to another and, as such, a time in which we, human beings, have a tendency to take stock of our lives. This is actually one of the main issues present in Julian Barnes's last novel The Sense of an Ending (2011. When the main protagonist, a retired man quite comfortable and contented with his present life, receives an unexpected inheritance from the mother of a girlfriend from his university years, he is forced to track down a part of his life that he had left at the back of his mind a long time ago. As he explains his story, the protagonist and narrator of the novel raises a number of questions related to the quality and function of memory as one gets into old age. He experiments the unreliability of memory and questions to what extent memory is constructed through the remembered emotions that invaded him over that episode of his life rather than through the events as they actually took place. On the other hand, the act of revisiting and revising that specific episode, brings with it feelings of guilt and remorse as the protagonist realises that his past acts were not as noble as he remembered them to be. However, these acts are part of the past and they cannot be changed; thus, another question that the novel raises is how to account for those actions of which one does not feel proud and, more importantly, how to manage those bad memories as one gets older

  10. Barn swallows nesting near radioactive leaching ponds in southeastern Idaho

    International Nuclear Information System (INIS)

    Seasonally occurring populations of barn swallows nest near the Test Reactor Area (TRA) radioactive leaching ponds on the Idaho National Engineering Laboratory (INEL) Site. These birds utilize leaching pond arthropods and are therefore capable of accumulating radioactive materials and exporting them from the INEL Site during migration. The breeding biology is discussed for these swallows and a control group located 100 km away. Total nestling mortality for the controls and a 1977 TRA population was found to be statistically identical. Over 20 fission and activation products have been detected in immature and adult TRA birds. Mean concentrations of detectable radionuclides were used to calculate internal dose rates, and results showed that Na-24 contributed about 72% of the total average of 21.9 mrad/d for adult birds. Concentration factors were also calculated for predominant radionuclides in swallows relative to filtered pond water. Data from LiF dosimeters in swallow nests constructed with contaminated mud indicated average dose rates were 84 mrad/d for eggs and 220 mrad/d for nestlings. Growth curves were constructed for the immature TRA birds and controls. The first clutch of TRA swallows was found to have a significantly lower mean growth rate constant than the first clutch of controls. The statistical difference in growth rate between the control and TRA first clutch populations may have resulted from differences in climate, nesting site habitat, or available food sources, and cannot be solely attributed to radiation exposure as a causative factor. Growth rate parameters for TRA birds were within the range of values reported in the literature

  11. An example of a method to wirelessly transfer measurement data from cows in a free stall barn

    OpenAIRE

    Järvinen, M.; Sutinen, V.; Martiskainen, P.; Rehu, J.; Korkalainen, M.; Känsälä, K.; Mononen, J.

    2010-01-01

    Here we describe a wireless data measurement and transfer system that operates within a free stall barn. We report also the reliability of the system. This system was designed and built in Very Intelligent Cow Barn project in 2006-2007.

  12. Matvägran hos barn : En medicinsk översikt och kritisk analys samt fallstudier

    OpenAIRE

    Leander, Kajsa

    2012-01-01

    Ätproblem hos barn är relativt vanliga och existerar både hos i övrigt friska barn och hos barn med andra sjukdomar och diagnoser. I vissa fall är ätproblemen så allvarliga att de leder till malnutrition. Ofta delas ätproblem in i kategorier beroende på om man tycker sig se en medicinsk orsak eller inte, man skiljer därmed på organiska och icke-organiska problem. Detta arbete fokuserar främst på det som i litteraturen brukar kallas matvägran. Syftet var att belysa området i stort genom att pr...

  13. Djurlåda med rollkort : - Rollbyte som resiliensstärkande metod bland barn

    OpenAIRE

    Lundberg, Maria

    2010-01-01

    Syftet med examensarbetet är att beskriva hur rollbyte kan användas som en resiliensstärkande metod bland barn. Frågeställningar i arbetet är: vad är resiliens, vad är rollbyte och på vilket sätt kan rollbyte fungera som resiliensstärkande metod. Teoridelen i arbetet behandlar resiliens, social kompetens, empati och rollbyte. Den tillhörande produkten, Djurlådan, består av en låda med rollkort. Produkten är avsedd för barn i 5 års ålder på daghem. Resiliens handlar om att vissa barn k...

  14. Prey composition modulates exposure risk to anticoagulant rodenticides in a sentinel predator, the barn owl.

    Science.gov (United States)

    Geduhn, Anke; Esther, Alexandra; Schenke, Detlef; Gabriel, Doreen; Jacob, Jens

    2016-02-15

    Worldwide, small rodents are main prey items for many mammalian and avian predators. Some rodent species have pest potential and are managed with anticoagulant rodenticides (ARs). ARs are consumed by target and non-target small mammals and can lead to secondary exposure of predators. The development of appropriate risk mitigation strategies is important and requires detailed knowledge of AR residue pathways. From July 2011 to October 2013 we collected 2397 regurgitated barn owl (Tyto alba) pellets to analyze diet composition of owls on livestock farms in western Germany. 256 of them were fresh pellets that were collected during brodifacoum baiting. Fresh pellets and 742 liver samples of small mammals that were trapped during baiting in the same area were analyzed for residues of ARs. We calculated exposure risk of barn owls to ARs by comparing seasonal diet composition of owls with AR residue patterns in prey species. Risk was highest in autumn, when barn owls increasingly preyed on Apodemus that regularly showed AR residues, sometimes at high concentrations. The major prey species (Microtus spp.) that was consumed most frequently in summer had less potential to contribute to secondary poisoning of owls. There was no effect of AR application on prey composition. We rarely detected ARs in pellets (2 of 256 samples) but 13% of 38 prey individuals in barn owl nests were AR positive and substantiated the expected pathway. AR residues were present in 55% of 11 barn owl carcasses. Fluctuation in non-target small mammal abundance and differences in AR residue exposure patterns in prey species drives exposure risk for barn owls and probably other predators of small mammals. Exposure risk could be minimized through spatial and temporal adaption of AR applications (avoiding long baiting and non-target hot spots at farms) and through selective bait access for target animals. PMID:26657360

  15. Vi trenger longitudinelle epidemiologiske undersøkelser av psykiske lidelser og utviklingsforstyrrelser hos barn

    OpenAIRE

    Bente Gjærum; Torunn S. Nøvik

    2009-01-01

     sAMMENDRAGArtikkelen gjennomgår nyere forekomststudier for utviklings- og atferdsforstyrrelser, nevrologiske og psykiskelidelser hos barn og ungdom. Forfatterne peker på den betydelige komorbiditet som sees for disse grupperav tilstander, og den tverrfaglige bredde som synes nødvendig for å forstå hvilke faktorer og mekanismer sompåvirker barns utvikling og psykiske helse. I tillegg refereres nyere forskning på forløp og varighet vedavvikende utvikling i oppveksten, samt eksempler på undersø...

  16. Endogenous anxiety and stress responses in water maze and Barnes maze spatial memory tasks

    OpenAIRE

    Harrison, F. E.; Hosseini, A.H.; McDonald, M.P.

    2008-01-01

    The effects of abnormally high or low stress on learning are well established. The Barnes maze and Morris water maze are two commonly-used tests of spatial memory, of which the water maze is considered more stressful; however, until now this has not been demonstrated empirically. In the present study, mice matched for performance on commonly-used anxiety tasks were trained on either the Barnes maze or water maze or received no cognitive testing. Water-maze training induced greater increases i...

  17. Food habits of common barn-owls along an elevational gradient in Andean Argentine Patagonia

    OpenAIRE

    Travaini, Alejandro; Donázar, José A.; Ceballos, Olga; Rodríguez, Alejandro; Hiraldo, F.; Delibes, M.

    1997-01-01

    We evaluated the diet of Common Barn-owls (Tyto alba) along an elevational gradient in Argentine Patagonia. Small mammals (mainly rodents) were the main prey accounting for 93.2% of total prey items. Consumption of rodents appeared to be dependent on their availability. Sizes of mam­ malian prey were variable but most ranged from 10—100 g in body mass. We concluded that the diet of these barn owls could be used as an index of cricetid rodent populations along ...

  18. Parent Management Training - en foreldreveiledningsmetodefor behandling av barn med atferdsproblemer. Teori, behandlingsprogram og implementering i Norge

    OpenAIRE

    Apelseth, Eva Fohlin; Amlie, Christine

    2001-01-01

    Antisosial atferd blant barn og ungdom er et stort og økende helsemessig og økonomisk problem. Parent Management Training – Oregon (PMT-O), et behandlings- og forebyggingsprogram for familier med barn som fremviser antisosial adferd, blir for tiden implementert i Norge som ledd i satsingen på psykisk helsevern. PMT-O er basert på ”social learning interaction theory”, utviklet av Patterson og medarbeidere ved Oregon Social Learning Center. PMT-O er et detaljert program for styrking av foreldre...

  19. Variation in sperm morphometry and sperm competition among barn swallow (Hirundo rustica) populations

    Czech Academy of Sciences Publication Activity Database

    Laskemoen, T.; Albrecht, Tomáš; Bonisoli-Alquati, A.; Cepák, J.; De Lope, F.; Hermosell, I. G.; Johannessen, L. E.; Kleven, O.; Marzal, A.; Mousseau, T. A.; Moller, A. P.; Robertson, R. J.; Rudolfsen, G.; Saino, N.; Vortman, Y.; Lifjeld, J. T.

    2013-01-01

    Roč. 67, č. 2 (2013), s. 301-309. ISSN 0340-5443 R&D Projects: GA ČR(CZ) GAP506/12/2472 Institutional support: RVO:68081766 Keywords : Barn swallow * Extrapair paternity * Hirundo rustica * Sperm competition * Sperm size Subject RIV: EG - Zoology Impact factor: 3.049, year: 2013

  20. Michael E. Barnes: Award for Distinguished Professional Contributions to Institutional Practice

    Science.gov (United States)

    American Psychologist, 2012

    2012-01-01

    Presents a short biography on the winner of the American Psychological Association's Award for Distinguished Professional Contributions to Institutional Practice. The 2012 winner is Michael E. Barnes for his pioneering leadership, dedication, and distinguished contributions to juvenile justice. As chief psychologist of the Superior Court of the…

  1. Low frequency eardrum directionality in the barn owl induced by sound transmission through the interaural canal

    DEFF Research Database (Denmark)

    Kettler, Lutz; Christensen-Dalsgaard, Jakob; Larsen, Ole Næsbye;

    2016-01-01

    The middle ears of birds are typically connected by interaural cavities that form a cranial canal. Eardrums coupled in this manner may function as pressure difference receivers rather than pressure receivers. Hereby, the eardrum vibrations become inherently directional. The barn owl also has a la...

  2. Non-planar Feynman diagrams and Mellin-Barnes representations with AMBRE 3.0

    Energy Technology Data Exchange (ETDEWEB)

    Dubovyk, Ievgen [Institute of Electrophysics and Radiation Technologies, Kharkiv (Ukraine); Gluza, Janusz [Univ. of Silesia, Katowice (Poland). Inst. of Physics; Riemann, Tord

    2016-04-15

    We introduce the Mellin-Barnes representation of general Feynman integrals and discuss their evaluation. The Mathematica package AMBRE has been recently extended in order to cover consistently non-planar Feynman integrals with two loops. Prospects for the near future are outlined. This write-up is an introduction to new results which have also been presented elsewhere.

  3. Systematics and distribution of the giant fossil barn owls of the West Indies (Aves: Strigiformes: Tytonidae).

    Science.gov (United States)

    Suárez, William; Olson, Storrs L

    2015-01-01

    After reviewing the systematics and distribution of the extinct West Indian taxa of Tytonidae (Tyto) larger than the living barn owl Tyto alba (Scopoli), we reached the following conclusions: (1) the species T. ostologa Wetmore (1922) is the only giant barn owl known so far from Hispaniola; (2) T. pollens Wetmore (1937) was a somewhat larger and even more robust representative of T. ostologa known from the Great Bahama Bank and Cuba; (3) the very rare species T. riveroi Arredondo (1972b) is here synonymized with T. pollens; (4) the smallest taxon of these giant barn owls is T. noeli Arredondo (1972a), which is widespread and abundant in Quaternary deposits of Cuba and is here reported for the first time from two cave deposits in Jamaica; (5) the only large barn owl named so far from the Lesser Antilles is T. neddi Steadman & Hilgartner (1999), which is here synonymized with T. noeli; (6) a new taxon from Cuba, T. cravesae new species, which in size approached the linear dimensions of T. ostologa, is named and described herein. PMID:26624114

  4. First observation of African tigerfish Hydrocynus vittatus predating on barn swallows Hirundo rustica in flight.

    Science.gov (United States)

    O'Brien, G C; Jacobs, F; Evans, S W; Smit, N J

    2014-01-01

    A population of African tigerfish Hydrocynus vittatus from the Schroda Dam, actively prey on barn swallows Hirundo rustica in flight. This behaviour was discovered during a radio telemetry study and documented using a motion picture video camera. These results show that an avivorous diet is a part of the feeding biology of H. vittatus, and may occur in other populations. PMID:24354922

  5. Personcentrerad omvårdnad för familjer där barn har ADHD En litteraturstudie

    OpenAIRE

    Malmberg, Claes

    2016-01-01

    Bakgrund: Attention deficit hyperactivity disorder (ADHD) är den vanligaste neuropsykiatriska diagnosen bland barn, prevalens ca 5%. ADHD kan skapa en myriad svårigheter som ibland är svåra att koppla till kärnsymtomen. Miljö och bemötande är viktiga faktorer. Syfte: Syftet med följande studie har varit att beskriva hur specialistsjuksköterskan i psykiatrisk vård kan anpassa den personcentrerade omvårdnaden för barn och familjer där barn har ADHD. Metod: Litteraturstudie av tolv kvalitativa a...

  6. Sex steroid hormones in barn swallow (Hirundo rustica) populations at a dioxin contaminated site in northeast Louisiana

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This study compares the gonadal sex steroid hormone levels (i.e., estradiol, total estrogen, and testosterone) in Louisiana barn swallows (Hirundo rustica) that...

  7. Socionomens fostringsstöd till föräldrar med överviktiga barn-en litteraturstudie

    OpenAIRE

    Johanson, Emma

    2012-01-01

    Syftet med denna studie är att belysa vad föräldrarna kan göra annorlunda i sin fostran för att förebygga att deras barn blir överviktiga eller stöda deras barn om de redan är överviktiga. Mina frågeställningar är; Hur kan föräldrar i fostran förebygga barns övervikt? Hur kan en socionom stöda föräldrar i denna typ av fostran? Den teoretiska referensramen är fostran, bemötande av överviktiga barn och föräldrar och empowerment. Detta arbete är en litteraturstudie och analysmetoden är innehålls...

  8. Mass depopulation of laying hens in whole barns with liquid carbon dioxide: evaluation of welfare impact.

    Science.gov (United States)

    Turner, P V; Kloeze, H; Dam, A; Ward, D; Leung, N; Brown, E E L; Whiteman, A; Chiappetta, M E; Hunter, D B

    2012-07-01

    Appropriate emergency disaster preparedness is a key priority for agricultural agencies to allow effective response to serious avian disease outbreaks. There is a need to develop rapid, humane, and safe depopulation techniques for poultry that are widely applicable across a range of farm settings. Whole barn depopulation with carbon dioxide (CO(2)) has been investigated as a humane and efficient means of killing large numbers of birds in the event of a reportable disease outbreak. It has also been considered as a method for depopulating barns containing end-of-lay hens, particularly when there is limited local slaughter and rendering capacity. Determining the best method of humanely killing large flocks of birds remains problematic and is being investigated by a coordinated international effort. While whole barn depopulation using CO(2) inhalation has been explored, physiologic responses of chickens have not been characterized in field settings and assessment of animal welfare is hampered without this information. In this study, 12 cull laying hens were surgically instrumented with telemetry transmitters to record electroencephalographs, electrocardiographs, body temperature, and activity during 2 large-scale field CO(2) euthanasia trials of end-of-lay hens. The day following surgery, instrumented hens were placed in barns with other birds, barns were sealed, and animals were killed by CO(2) inhalation delivered via a specially designed liquid CO(2) manifold. Instrumented birds were monitored by infrared thermography, and ambient temperature, CO(2), and O(2) concentrations were recorded. Results from these studies indicate that instrumented hens lost consciousness within 2 min of CO(2) levels reaching 18 to 20%. Mild to moderate head shaking, gasping, and 1 to 2 clonic muscle contractions were noted in hens before unconsciousness; however, brain death followed rapidly (benefits suggest clear advantages over catching and transporting cull hens for slaughter. The

  9. ”Mitt barns medicin” : En kvalitativ studie om föräldrars upplevelser av deras barns behandling med Modifierad Atkins Diet och ketogenkost.

    OpenAIRE

    Holmström, Annika; Mårtensson, Lotta

    2012-01-01

    BAKGRUND Modifierad Atkins Diet (MAD) och ketogenkost är kostbehandlingar som ordineras till barn med svårbehandlad epilepsi. Andra patientgrupper som behandlas med dessa dieter är patienter med glukostransportprotein typ 1-brist. Kostbehandlingarna är kolhydratfattiga och fettrika. I Sverige finns fyra sjukhus som arbetar med MAD och ketogenkost. I dagsläget saknas studier som beskriver hur behandlingarna upplevs av berörda familjer. SYFTE Syftet med studien var att utforska hur föräldrar ti...

  10. Remaining Sites Verification Package for the 141-C Large Animal Barn and Biology Laboratory (Hog Barn). Attachment to Waste Site Reclassification Form 2006-027

    International Nuclear Information System (INIS)

    The 141-C waste site is a former large animal barn and biology laboratory within the 100-F Area experimental animal farm. Strontium-90, arsenic, and multiple polycyclic aromatic hydrocarbons were detected within residual demolition debris at concentrations exceeding cleanup criteria. The site has been remediated by removing approximately 900 bank cubic meters of soil and debris within the former building footprint to the Environmental Restoration Disposal Facility. The results of verification sampling demonstrated that residual contaminant concentrations do not preclude any future uses and allow for unrestricted use of shallow zone soils. The results also showed that residual contaminant concentrations are protective of groundwater and the Columbia River

  11. Scalable Parallel Formulations of the Barnes-Hut Method for n-Body Simulations

    Science.gov (United States)

    Grama, Ananth Y.; Kumar, Vipin; Sameh, Ahmed

    In this paper, we present two new parallel formulations of the Barnes-Hut method. These parallel formulations are especially suited for simulations with irregular particle densities. We first present a parallel formulation that uses a static partioning of the domain and assignment of subdomains to processors. We demonstrate that this scheme delivers acceptable load balance, and coupled with two collective communication operations, it yields good performance. We present a second parallel formulation which combines static decomposition of the domain with an assignment of subdomains to processors based on Morton ordering. This alleviates the load imbalance inherent in the first scheme. The second parallel formulation is inspired by two currently best known parallel algorithms for the Barnes-Hut method. We present an experimental evaluation of these schemes on a 256 processor nCUBE2 parallel computer for an astrophysical simulation.

  12. Scalable parallel formulations of the Barnes-Hut method for n-body simulations

    Energy Technology Data Exchange (ETDEWEB)

    Grama, A.Y.; Kumar, V.; Sameh, A. [Univ. of Minnesota, Minneapolis, MN (United States). Dept. of Computer Science

    1994-12-31

    In this paper, the authors present two new parallel formulations of the Barnes-Hut method. These parallel formulations are especially suited for simulations with irregular particle densities. They first present a parallel formulation that uses a static partitioning of the domain and assignment of subdomains to processors. They demonstrate that this scheme delivers acceptable load balance, and coupled with two collective communication operations, it yields good performance. They present a second parallel formulation which combines static decomposition of the domain with an assignment of subdomains to processors based on Morton ordering. This alleviates the load imbalance inherent in the first scheme. The second parallel formulation is inspired by two currently best known parallel algorithms for the Barnes-Hut method.

  13. Multimodal signalling in the North American barn swallow: a phenotype network approach.

    Science.gov (United States)

    Wilkins, Matthew R; Shizuka, Daizaburo; Joseph, Maxwell B; Hubbard, Joanna K; Safran, Rebecca J

    2015-10-01

    Complex signals, involving multiple components within and across modalities, are common in animal communication. However, decomposing complex signals into traits and their interactions remains a fundamental challenge for studies of phenotype evolution. We apply a novel phenotype network approach for studying complex signal evolution in the North American barn swallow (Hirundo rustica erythrogaster). We integrate model testing with correlation-based phenotype networks to infer the contributions of female mate choice and male-male competition to the evolution of barn swallow communication. Overall, the best predictors of mate choice were distinct from those for competition, while moderate functional overlap suggests males and females use some of the same traits to assess potential mates and rivals. We interpret model results in the context of a network of traits, and suggest this approach allows researchers a more nuanced view of trait clustering patterns that informs new hypotheses about the evolution of communication systems. PMID:26423842

  14. Avian pox virus infection in a common barn owl (Tyto alba in southern Brazil

    Directory of Open Access Journals (Sweden)

    Gilberto D. Vargas

    2011-07-01

    Full Text Available A young common barn owl (Tyto alba was referred to the Núcleo de Reabilitação da Fauna Silvestre (Nurfs, Federal University of Pelotas (UFPel, after been found in a barn of a brick factory in the urban area of Pelotas, Rio Grande do Sul, Brazil. The bird was apathic, weak and with crusty lesions in the featherless areas (eyes, beak, legs, and died soon after arrival at Nurfs. Necropsy and histopathological examination of the lesions were carried out. The hyperplasia and hypertrophy of the cutaneous lesions, several eosinophilic intracyto-plasmic inclusion bodies in epithelial cells (Bollinger bodies, as well as particles characteristic of poxvirus, observed by electronic microscopy, confirmed the infection by avian poxvirus, what highlights the importance of Tyto alba as carrier of the virus in the wild.

  15. Geographic variation in sexual selection and implications for speciation in the Barn Swallow

    Institute of Scientific and Technical Information of China (English)

    Elizabeth SC Scordato; Rebecca J Safran

    2015-01-01

    Barn Swal ows (Hirundo rustica), a group of passerine birds comprised of six closely related subspecies, are well known throughout their nearly worldwide distribution, in part because of their close association with human settlements. A tractable species for both individual-based and population-level studies, Barn Swallows are a prominent model system in evolutionary, ecological, and behavioral research. Here we review work on sexual selection and population divergence in this species complex, focusing on comparative studies among populations and subspecies. We summarize variation in the targets of mate choice and in the information conveyed by sexually selected traits, and conclude that the benefits advertised by different traits may vary geographical y. Finally, we consider the role of sexual selection as a driver of population divergence in this widespread and phenotypically variable species complex.

  16. Geographic variation in sexual selection and implications for speciation in the Barn Swallow

    Institute of Scientific and Technical Information of China (English)

    Elizabeth; SC; Scordato; Rebecca; J; Safran

    2015-01-01

    Barn Swallows(Hirundo rustica), a group of passerine birds comprised of six closely related subspecies, are well known throughout their nearly worldwide distribution, in part because of their close association with human settlements.A tractable species for both individual-based and population-level studies, Barn Swallows are a prominent model system in evolutionary, ecological, and behavioral research. Here we review work on sexual selection and population divergence in this species complex, focusing on comparative studies among populations and subspecies.We summarize variation in the targets of mate choice and in the information conveyed by sexually selected traits, and conclude that the benefits advertised by different traits may vary geographically. Finally, we consider the role of sexual selection as a driver of population divergence in this widespread and phenotypically variable species complex.

  17. Trends in North American small mammals found in common barn-owl (Tyto alba) dietary studies

    Science.gov (United States)

    Clark, D.R., Jr.; Bunck, C.M.

    1991-01-01

    Data on mammals were compiled from published studies of common barn-owl (Tyto alba) pellets. Mammalian composition of pellet samples was analyzed within geographic regions in regard to year, mean annual precipitation, latitude, and number of individual mammals in the sample. Percentages of individuals in pellets that were shrews increased whereas the percentages of rodents decreased with greater mean annual precipitation, especially in northern and western areas of North America. From the 1920s through 1980s, in northern and eastern areas the percentage of species that was shrews decreased, and in northern and central areas the percentage of individuals that was murid rats and mice increased. Human alterations of habitats during these seven decades are postulated to have caused changes in available small mammals, leading to changes in the barn-owl diet.

  18. Non-planar Feynman integrals, Mellin-Barnes representations, multiple sums

    International Nuclear Information System (INIS)

    The construction of Mellin-Barnes (MB) representations for non-planar Feynman diagrams and the summation of multiple series derived from general MB representations are discussed. A basic version of a new package AMBREv.3.0 is supplemented. The ultimate goal of this project is the automatic evaluation of MB representations for multiloop scalar and tensor Feynman integrals through infinite sums, preferably with analytic solutions. We shortly describe a strategy of further algebraic summation.

  19. Computational Diversity in the Cochlear Nucleus Angularis of the Barn Owl

    OpenAIRE

    Köppl, Christine; Carr, Catherine E.

    2002-01-01

    The cochlear nucleus angularis (NA) is widely assumed to form the starting point of a brain stem pathway for processing sound intensity in birds. Details of its function are unclear, however, and its evolutionary origin and relationship to the mammalian cochlear-nucleus complex are obscure. We have carried out extracellular single-unit recordings in the NA of ketamine-anesthetized barn owls. The aim was to re-evaluate the extent of heterogeneity in NA physiology because recent studies of cell...

  20. Performance and Health of Group-Housed Calves Kept in Igloo Calf Hutches and Calf Barn

    Directory of Open Access Journals (Sweden)

    Jerzy Wójcik*, Renata Pilarczyk, Anna Bilska, Ottfried Weiher1 and Peter Sanftleben1

    2013-04-01

    Full Text Available Group-reared calves are usually housed in common buildings, such as calf barns of all sorts; however, there are concerns about this practice due to problems such as an increased incidence of diseases and poor performance of the calves. Group calf rearing using igloo hutches may be a solution combining the benefits of individual and group housing systems. The aim of this study was to evaluate group-reared calves housed in Igloo-type hutches compared with those housed in common calf barns. The experiment was carried out on a large private dairy farm located in Vorpommern, Germany. A total of 90 Deutsche-Holstein bull calves were assigned to 2 treatment groups: the calf-barn group, with calves grouped in pens in a building, and the Igloo-hutch group, with calves housed in outdoor enclosures with an access to group igloo-style hutches. Calves entering the 84-day experiment were at an average age of about three weeks, with the mean initial body weight of about 50 kg. The calves housed in the group Igloo hutches attained higher daily weight gains compared to those housed in the calf barn (973 vs 721 g/day, consumed more solid feeds (concentrate, corn grain and maize silage: (1.79 vs 1.59 kg/day, and less milk replacer (5.51 vs 6.19 kg/day, had also a lower incidence of respiratory diseases (1.24 vs 3.57% with a shorter persistence of the illness.

  1. Fortellinger om annerledeshet : et studie av barn med funksjonshemninger i Sør-Afrika

    OpenAIRE

    2001-01-01

    I denne oppgaven undersøkes forskjellige lokale oppfatninger, forestillinger og forståelser av "funksjonshemninger". Utgangspunktet er hvordan kvinner og menn konstruerer forestillinger om annerledeshet i lys av oppfatninger om sykdom og lidelser. De sentrale aktørene i fortellingene er familier som har barn med funksjonshemninger i "semi-rurale" landsbyer utenfor byen Pietersburg i den Nordlige Provinsen i Sør-Afrika. Gjennom å følge personene i hverdagsaktiviteter belyses ulike intersubjekt...

  2. A Continent-Wide Migratory Divide in North American Breeding Barn Swallows (Hirundo rustica)

    OpenAIRE

    Keith A. Hobson; Kevin J. Kardynal; Steven L Van Wilgenburg; Gretchen Albrecht; Antonio Salvadori; Cadman, Michael D.; Felix Liechti; Fox, James W.

    2015-01-01

    Populations of most North American aerial insectivores have undergone steep population declines over the past 40 years but the relative importance of factors operating on breeding, wintering, or stopover sites remains unknown. We used archival light-level geolocators to track the phenology, movements and winter locations of barn swallows (Hirdundo rustica; n = 27) from populations across North America to determine their migratory connectivity. We identified an east-west continental migratory ...

  3. Non-planar Feynman integrals, Mellin-Barnes representations, multiple sums

    Energy Technology Data Exchange (ETDEWEB)

    Bluemlein, Johannes; Dubovyk, Ievgen; Ochman, Michal; Raab, Clemens G.; Riemann, Tord [Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany); Gluza, Janusz [Uniwersytet Slaski, Katowice (Poland). Inst. of Physics and Chemistry; Schneider, Carsten [Johannes Kepler Univ., Linz (Austria). Research Inst. for Symbolic Computation

    2014-07-15

    The construction of Mellin-Barnes (MB) representations for non-planar Feynman diagrams and the summation of multiple series derived from general MB representations are discussed. A basic version of a new package AMBREv.3.0 is supplemented. The ultimate goal of this project is the automatic evaluation of MB representations for multiloop scalar and tensor Feynman integrals through infinite sums, preferably with analytic solutions. We shortly describe a strategy of further algebraic summation.

  4. Elever och stress.En undersökning om stress i barns vardag

    OpenAIRE

    Nilsson, Elin

    2003-01-01

    Mitt syfte med det här arbetet är att fokusera på barn och stressen i deras vardag. Jag ville ta reda på vad som orsakar den eventuella stressen och om de har någon metod för att stressa av. Därför har jag intervjuat elever samt gjort en litteraturstudie för att kunna dra paralleller ifrån tidigare forskning.

  5. Mellin-Barnes representations of Feynman diagrams, linear systems of differential equations, and polynomial solutions

    Energy Technology Data Exchange (ETDEWEB)

    Kalmykov, Mikhail Yu.; Kniehl, Bernd A. [Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik

    2012-05-15

    We argue that the Mellin-Barnes representations of Feynman diagrams can be used for obtaining linear systems of homogeneous differential equations for the original Feynman diagrams with arbitrary powers of propagators without recourse to the integration-by-parts technique. These systems of differential equation can be used (i) for the differential reductions to sets of basic functions and (ii) for counting the numbers of master-integrals.

  6. Photoperiod interacts with food restriction on performance in the Barnes maze in female California mice

    OpenAIRE

    Steinman, Michael Q.; Crean, Katie K.; Trainor, Brian C.

    2010-01-01

    Food restriction has been reported to have positive effects on cognition. This study examines how another environmental factor, daylength, can alter the impact of food restriction on the brain and behavior. Female California mice (Peromyscus californicus), housed on either long days (16L:8D) or short days (8L:16D) were restricted to 80% of their normal baseline food intake or provided food ad libitum. Testing in a Barnes maze revealed that the effects of food restriction depend on photoperiod...

  7. Overt attention toward oriented objects in free-viewing barn owls

    OpenAIRE

    Harmening, Wolf Maximilian; Orlowski, Julius; Ben-Shahar, Ohad; Wagner, Hermann

    2011-01-01

    Visual saliency based on orientation contrast is a perceptual product attributed to the functional organization of the mammalian brain. We examined this visual phenomenon in barn owls by mounting a wireless video microcamera on the owls’ heads and confronting them with visual scenes that contained one differently oriented target among similarly oriented distracters. Without being confined by any particular task, the owls looked significantly longer, more often, and earlier at the target, thus...

  8. Hunting Increases Phosphorylation of Calcium/Calmodulin-Dependent Protein Kinase Type II in Adult Barn Owls

    OpenAIRE

    Nichols, Grant S.; DeBello, William M.

    2015-01-01

    Juvenile barn owls readily adapt to prismatic spectacles, whereas adult owls living under standard aviary conditions do not. We previously demonstrated that phosphorylation of the cyclic-AMP response element-binding protein (CREB) provides a readout of the instructive signals that guide plasticity in juveniles. Here we investigated phosphorylation of calcium/calmodulin-dependent protein kinase II (pCaMKII) in both juveniles and adults. In contrast to CREB, we found no differences in pCaMKII e...

  9. Ring recoveries of dead birds confirm that darker pheomelanic Barn Owls disperse longer distances

    OpenAIRE

    Roulin A.

    2013-01-01

    Variation in melanin coloration is widespread and often associated with other phenotypic traits. A recent study showed that darker-reddish pheomelanic Barn Owls (Tyto alba) move longer distances between birth and breeding sites. Because this study considered only individuals recovered within a limited study area, it remains unclear whether the association between melanism and dispersal applies to a larger geographic scale. I analysed an independent dataset of birds ringed in the same study ar...

  10. Social huddling and physiological thermoregulation are related to melanism in the nocturnal barn owl.

    Science.gov (United States)

    Dreiss, Amélie N; Séchaud, Robin; Béziers, Paul; Villain, Nicolas; Genoud, Michel; Almasi, Bettina; Jenni, Lukas; Roulin, Alexandre

    2016-02-01

    Endothermic animals vary in their physiological ability to maintain a constant body temperature. Since melanin-based coloration is related to thermoregulation and energy homeostasis, we predict that dark and pale melanic individuals adopt different behaviours to regulate their body temperature. Young animals are particularly sensitive to a decrease in ambient temperature because their physiological system is not yet mature and growth may be traded-off against thermoregulation. To reduce energy loss, offspring huddle during periods of cold weather. We investigated in nestling barn owls (Tyto alba) whether body temperature, oxygen consumption and huddling were associated with melanin-based coloration. Isolated owlets displaying more black feather spots had a lower body temperature and consumed more oxygen than those with fewer black spots. This suggests that highly melanic individuals display a different thermoregulation strategy. This interpretation is also supported by the finding that, at relatively low ambient temperature, owlets displaying more black spots huddled more rapidly and more often than those displaying fewer spots. Assuming that spot number is associated with the ability to thermoregulate not only in Swiss barn owls but also in other Tytonidae, our results could explain geographic variation in the degree of melanism. Indeed, in the northern hemisphere, barn owls and allies are less spotted polewards than close to the equator, and in the northern American continent, barn owls are also less spotted in colder regions. If melanic spots themselves helped thermoregulation, we would have expected the opposite results. We therefore suggest that some melanogenic genes pleiotropically regulate thermoregulatory processes. PMID:26552377

  11. Age before beauty? Relationships between fertilization success and age-dependent ornaments in barn swallows

    OpenAIRE

    Lifjeld, Jan T; Kleven, Oddmund; Jacobsen, Frode; McGraw, Kevin J.; Safran, Rebecca J.; Robertson, Raleigh J.

    2011-01-01

    When males become more ornamented and reproduce more successfully as they grow older, phenotypic correlations between ornament exaggeration and reproductive success can be confounded with age effects in cross-sectional studies, and thus say relatively little about sexual selection on these traits. This is exemplified here in a correlative study of male fertilization success in a large colony of American barn swallows (Hirundo rustica erythrogaster). Previous studies of this species have indic...

  12. Darker eumelanic barn owls better withstand food depletion through resistance to food deprivation and lower appetite.

    OpenAIRE

    Dreiss A.; Henry I.; Ruppli C.; Almasi B.; Roulin A.

    2010-01-01

    The intensity of selection exerted on ornaments typically varies between environments. Reaction norms may help to identify the conditions under which ornamented individuals have a selective advantage over drab conspecifics. It has been recently hypothesized that in vertebrates eumelanin-based coloration reflects the ability to regulate the balance between energy intake and expenditure. We tested two predictions of this hypothesis in barn owl nestlings, namely that darker eumelanic individuals...

  13. Numerical integration of massive two-loop Mellin-Barnes integrals in Minkowskian regions

    CERN Document Server

    Dubovyk, Ievgen; Riemann, Tord; Usovitsch, Johann

    2016-01-01

    Mellin-Barnes (MB) techniques applied to integrals emerging in particle physics perturbative calculations are summarized. New versions of AMBRE packages which construct planar and nonplanar MB representations are shortly discussed. The numerical package MBnumerics.m is presented for the first time which is able to calculate with a high precision multidimensional MB integrals in Minkowskian regions. Examples are given for massive vertex integrals which include threshold effects and several scale parameters.

  14. Om å leve med et barn som ikke lenger er i live. En fenomenologisk deskriptiv studie

    Directory of Open Access Journals (Sweden)

    Marte A. Jystad

    2010-08-01

    Full Text Available Artikkelen fokuserer på kunnskap om foreldres opplevelse ved tap av barn og livet etter det. Materialet bygger på intervjuer med foreldre som har mistet barn. Deres beskrivelser ble utgangspunktet for fenomenologisk analyse.Tapet av et barn påvirker alle dimensjoner i livet. Man blir ikke bare konfrontert med selve fraværet av barnet. Man taper også håp og forventninger knyttet til både barnets og ens egen framtid. De eksistensielle spørsmål om måten man forvalter sitt liv på blir nærværende, og søken etter ny mening blir en vedvarende prosess.De ulike foreldre fulgte sin egen veg gjennom sorgprosessen. Likevel er det fellestrekk i opplevelse av vedvarende bånd med barnet, kropp, relasjon til andre, følelse av skyld og mening. Profesjonell hjelp fra helsearbeidere beskrives som avgjørende, spesielt i den første akutte sorgen.

  15. A Continent-Wide Migratory Divide in North American Breeding Barn Swallows (Hirundo rustica.

    Directory of Open Access Journals (Sweden)

    Keith A Hobson

    Full Text Available Populations of most North American aerial insectivores have undergone steep population declines over the past 40 years but the relative importance of factors operating on breeding, wintering, or stopover sites remains unknown. We used archival light-level geolocators to track the phenology, movements and winter locations of barn swallows (Hirdundo rustica; n = 27 from populations across North America to determine their migratory connectivity. We identified an east-west continental migratory divide for barn swallows with birds from western regions (Washington State, USA (n = 8 and Saskatchewan, Canada (n = 5 traveling shorter distances to wintering areas ranging from Oregon to northern Colombia than eastern populations (Ontario (n = 3 and New Brunswick (n = 10, Canada which wintered in South America south of the Amazon basin. A single swallow from a stable population in Alabama shared a similar migration route to eastern barn swallows but wintered farther north in northeast Brazil indicating a potential leap frog pattern migratory among eastern birds. Six of 9 (67% birds from the two eastern populations and Alabama underwent a loop migration west of fall migration routes including around the Gulf of Mexico travelling a mean of 2,224 km and 722 km longer on spring migration, respectively. Longer migration distances, including the requirement to cross the Caribbean Sea and Gulf of Mexico and subsequent shorter sedentary wintering periods, may exacerbate declines for populations breeding in northeastern North America.

  16. Odor characterization from barns and slurry treatment facilities at a commercial swine facility in South Korea

    Science.gov (United States)

    Jo, Sang-Hee; Kim, Ki-Hyun; Jeon, Byong-Hun; Lee, Min-Hee; Kim, Yong-Hyun; Kim, Bo-Won; Cho, Sung-Back; Hwang, Ok-Hwa; Bhattacharya, Satya Sundar

    2015-10-01

    In this study, emission characteristics of major odorants in pig confinement facilities were investigated through comparative analysis between odorant composition and odor intensity. Odorant samples in ambient air were collected from five different paired sampling sites: (1) in- and outside of windowless pig barn, (2) in- and outside of open pig barn, (3) before/after slurry treatment (via liquid fertilization), (4) before/after composting, and (5) two reference background sites on a pig confinement facility. A total of 47 compounds consisting of key offensive odorants (such as reduced sulfur and volatile organic compounds) were measured from each selected site. When the results are compared in terms of odor intensity, a list of odorants (sulfur compounds, volatile fatty acids, phenols, and indoles) were generally seen at enhanced levels on most sites. In two types of pig barn facilities (windowless ('W') and open ('O')), butyric and valeric acid were the predominant species. The removal efficiency of odorants was quite different between the two slurry treatment approaches of composting and liquid fertilization. Although the efficiencies of odor removal in the former were not sufficient, that of the latter was fairly significant in terms of odor intensity. However, some odorants like hydrogen sulfide, methanethiol, p-cresol, and butyric acid were still retained above the odor threshold level. Accordingly, odorant emissions from animal housing facilities can be characterized most effectively by key odorants such as volatile fatty acids and reduced sulfur species.

  17. Visual-auditory integration for visual search: a behavioral study in barn owls

    Directory of Open Access Journals (Sweden)

    Yael eHazan

    2015-02-01

    Full Text Available Barn owls are nocturnal predators that rely on both vision and hearing for survival. The optic tectum of barn owls, a midbrain structure involved in selective attention, has been used as a model for studying visual- auditory integration at the neuronal level. However, behavioral data on visual- auditory integration in barn owls are lacking. The goal of this study was to examine if the integration of visual and auditory signals contributes to the process of guiding attention towards salient stimuli. We attached miniature wireless video cameras on barn owls' heads (OwlCam to track their target of gaze. We first provide evidence that the area centralis (a retinal area with a maximal density of photoreceptors is used as a functional fovea in barn owls. Thus, by mapping the projection of the area centralis on the OwlCam's video frame, it is possible to extract the target of gaze. For the experiment, owls were positioned on a high perch and four food items were scattered in a large arena on the floor. In addition, a hidden loudspeaker was positioned in the arena. The positions of the food items and speaker were changed every session. Video sequences from the OwlCam were saved for offline analysis while the owls spontaneously scanned the room and the food items with abrupt gaze shifts (head saccades. From time to time during the experiment, a brief sound was emitted from the speaker. The fixation points immediately following the sounds were extracted and the distances between the gaze position and the nearest items and loudspeaker were measured. The head saccades were rarely towards the location of the sound source but to salient visual features in the room, such as the door knob or the food items. However, among the food items, the one closest to the loudspeaker had the highest probability of attracting a gaze shift. This result supports the notion that auditory signals are integrated with visual information for the selection of the next visual search

  18. Airborne Microorganisms in Tie-stall Dairy Barns from Brasov County

    Directory of Open Access Journals (Sweden)

    Silvana Popescu

    2011-05-01

    Full Text Available The aim of this study was the assessment of the airborne microorganisms in tie-stall dairy cattle barns, through determination of the total number of bacteria (mesophilic bacteria, staphylococci, streptococci and gram-negative bacteria and fungi. We investigated 8 dairy cattle barns with tie-stalls in Brasov County during the winter of 2009. The mean numbers of bacteria and fungi in the morning and in the evening were: 1.02 °— 105 - 1.26 °— 105 CFU/m3 for mesophilic bacteria, 5.34 °— 104 - 5.91 °— 104 CFU/m3 for staphylococci, 2.93 °— 104 - 3.60 °— 104 CFU/m3 for streptococci, 2.17 °— 103 - 3.48 °— 103 CFU/m3 for gram-negative bacteria and 1.54 °— 104 - 2.75 °— 104 CFU/m3 for fungi. In the investigated cattle houses staphylococci represented 52.35 – 46.90%, streptococci were 28.73 – 28.57%, and the gram-negative bacteria were 2.13 – 2.76% within the overall number of mesophilic bacteria. The numbers of bacteria and fungi were slightly elevated in the evening comparative to the morning, but the differences were statistically insignificant (p>0.05. The great numbers of bacteria and fungi in the air of dairy cattle tie-stall barns indicate an elevated risk of disease for animals and human workers.

  19. Optimization of Apparatus Design and Behavioral Measures for the Assessment of Visuo-Spatial Learning and Memory of Mice on the Barnes Maze

    Science.gov (United States)

    O'Leary, Timothy P.; Brown, Richard E.

    2013-01-01

    We have previously shown that apparatus design can affect visual-spatial cue use and memory performance of mice on the Barnes maze. The present experiment extends these findings by determining the optimal behavioral measures and test procedure for analyzing visuo-spatial learning and memory in three different Barnes maze designs. Male and female…

  20. Barn och ungas önskemål angående den fysiska sjukhusomgivningen : En forskningsöversikt

    OpenAIRE

    Nyberg, Linda

    2016-01-01

    barn och unga blir intagna på sjukhus kan förändringen från den vanliga omgivningen till sjukhusomgivningen bära med sig stor obekantskap och osäkerhet. Det är viktigt att lyssna till barn och ungas egna åsikter om sjukhusomgivningen, eftersom den fysiska omgivningen där man befinner sig påverkar både hälsa och välbefinnande, och borde därmed vara åldersenlig. Samarbetspartnern för examensarbetet är Project LIV, som är en förening som värnar för långtidssjuka barn. Huvudprojektägare Lek, l...

  1. Kan barns empati relateras till hur de tittar när de bedömer ansiktsuttryck?

    OpenAIRE

    Ekstrand, Camilla

    2008-01-01

    Forskning har visat att barn som uppvisar ett normbrytande beteende i kombination med brister i empati och förståelse för ömsesidighet med andra har svårare för att bedöma rädda ansikten än andra barn med normbrytande beteenden. I en studie kopplades detta till att de inte läser av ögonen utan fokuserar mer på munnen. Föreliggande studies huvudsyfte var dels att validera ett instrument för mätning av barns ögonrörelser och relatera ögonrörelser till tolkning av känslor i ansiktsuttryck, dels ...

  2. Yoga i förskolan : En studie om förskolepedagogers upplevelser av yoga bland barn

    OpenAIRE

    Berg, Therese

    2014-01-01

    Barn mår bra av att leka och röra på sig men i dagens samhälle använder man teknisk utrustning i allt större omfattning både inom hemmet och i skolan. Detta medför olika negativa effekter så som koncentrationssvårigheter och övervikt. Undersökningar och studier visar också att barn och unga upplever stress i vardagen på grund av krav från skolan, hemmet och sig själva.   Syftet med denna studie är att undersöka förskolepedagogers upplevelser av yoga bland barn. De som valts ut att delta i stu...

  3. Vad kommer en treåring ihåg? : En studie om svenska barns arbetsminne och fonologi

    OpenAIRE

    Eriksson, Cecilia; Rex, Kristina

    2014-01-01

    Få studier finns om små barns fonologiska förmåga relaterat till arbetsminne. Det råder också en brist på test av arbetsminne för små barn. Föreliggande studie syftade därför till att studera relationen mellan visuellt arbetsminne, fonologiskt arbetsminne och förmåga att hantera fonologiska representationer hos treåringar. Detta har gjorts genom att samla in jämförelsedata för treåringars resultat på det nyutvecklade surfplatte-testet KUBEN (Kognitiv utveckling hos små barn), som testar förmå...

  4. Aktuella teman gällande barn med ADHD och ergoterapeutiska interventioner

    OpenAIRE

    Puotila, Nathalie

    2014-01-01

    Syftet med denna studie var att kartlägga vad aktuell ergoterapeutisk forskning har fo-kuserat på gällande barn med ADHD och ergoterapeutiska åtgärder mellan åren 2008-2013. Forskningsfrågorna delade upp studiens fokus i personrelaterade, miljörelaterade och aktivitetsrelaterade faktorer som ergoterapeuter bör fokusera på enligt forskning. Metoden för arbetet var en systematisk litteraturstudie i form av en forskningsöversikt. Som analysmetod användes en innehållsanalys och som teoretisk refe...

  5. Closely spaced SiGe barns as stressor structures for strain-enhancement in silicon

    Energy Technology Data Exchange (ETDEWEB)

    Hrauda, N.; Zhang, J. J.; Groiss, H.; Etzelstorfer, T.; Stangl, J.; Bauer, G. [Institute of Semiconductor Physics, Johannes Kepler University Linz, Altenbergerstrasse 69, A-4040 Linz (Austria); Gerharz, J. C. [Peter Gruenberg Institut 9 (PGI-9), Forschungszentrum Juelich, D-52425 Juelich (Germany) and JARA-Fundamentals of Future Information Technology, Forschungszentrum Juelich, D-52425 Juelich (Germany); Holy, V. [Faculty of Mathematics and Physics, Charles University Prague, Ke Karlovu 5, 12116 Praha (Czech Republic); Deiter, C.; Seeck, O. H. [Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, D-22607 Hamburg (Germany)

    2013-01-21

    We present tensile and compressive strains realized within the same Si capping layer on an array of SiGe islands grown on pit-patterned (001) Si substrates. The strain distributions are obtained from synchrotron X-ray diffraction studies in combination with three-dimensional finite element calculations and simulations of the diffracted intensities. For barn-shaped islands grown at 720 Degree-Sign C with average Ge contents of 30%, the Si cap layer is misfit- and threading-dislocation free and exhibits compressive strains as high as 0.8% in positions between the islands and tensile strains of up to 1% on top of the islands.

  6. AMBRE - a mathematica package for the construction of Mellin-Barnes representations for Feynman integrals

    Energy Technology Data Exchange (ETDEWEB)

    Gluza, J.; Kajda, K. [Silesia Univ, Katowice (Poland). Dept. of Field Theory and Particle Physics, Inst. of Phsyics; Riemann, T. [Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany)

    2007-05-15

    The Mathematica toolkit AMBRE derives Mellin-Barnes (MB) representations for Feynman integrals in d=4-2{epsilon} dimensions. It may be applied for tadpoles as well as for multi-leg multi-loop scalar and tensor integrals. AMBRE uses a loop-by-loop approach and aims at lowest dimensions of the final MB representations. The present version of AMBRE works fine for planar Feynman diagrams. The output may be further processed by the package MB for the determination of its singularity structure in {epsilon}. The AMBRE package contains various sample applications for Feynman integrals with up to six external particles and up to four loops. (orig.)

  7. Effect of summer grazing on welfare of dairy cows reared in mountain tie-stall barns

    OpenAIRE

    Simonetta Dovier; Edi Piasentier; Mirco Corazzin; Stefano Bovolenta

    2010-01-01

    Traditional mountain farms have an important economic, social and environmental role. The Alps management system for dairy cows consists of animals kept indoors from autumn to spring, mostly in tie-stalls, and moved to mountain pasture in summer. The aim of our study was to assess the effect of mountain summer grazing on the welfare of dairy cows housed in tie-stall barns. Twenty-four farms were considered. In twelve of them, animals were reared in tie-stalls and moved to mountain pasture for...

  8. Problemer med å måle eksponering for passiv røyking blant barn

    Directory of Open Access Journals (Sweden)

    Per Nafstad m.fl.

    2009-10-01

    Full Text Available  SAMMENDRAGVanligvis måles eksponering for passiv røyking blant barn ved spørreskjemaopplysninger omforeldres røykevaner. Etter hvert som det blir mer oppmerksomhet om helseeffekter av passivrøyking, vil det kunne påvirke hvordan foreldre røyker og dermed også barns eksponering. Medhenvisning til innsamlede data om røykeeksponering i en kohort av Oslo-barn og fra en studie avbarn ved to helsestasjoner, diskuteres noen av de metodeproblemene en står overfor når en skal måleeksponering for passiv røyking i epidemiologiske studier. I disse studiene er barns eksponering forpassiv røyking målt ved spørreskjemaopplysninger og ved måling av hårnikotin og kotinin i urin.Det konkluderes med at det er usikkerhet om nøyaktigheten av eksisterende metoder for måling avpassiv røyking. Dette og manglende kunnskap om faktisk eksponeringsnivå kan føre til feilaktigestimering av helseeffekter av passiv røyking i en barnebefolkning.Nafstad P, Botten G, Magnus P. Problems in measuring environmental tobacco smoke exposurein children. Nor J Epidemiol 1995; 5 (2: 141-144.ENGLISH SUMMARYUsually environmental tobacco smoke exposure among children is measuered by questionnaires,recording parental smoking. As the adverse health effects of environmental tobacco smoke exposureare getting more known among the public, this is likely to influence the parents' way of smoking andby that their children's actual exposure. With references to findings in a cohort study of Oslochildren and a study of children attending two of Oslo’s health centers, some methodologicalproblems when measuring environmental tobacco smoke exposure in epidemiological studies arediscussed. The exposure in these studies is measured in questionnaires to the parents and aschildren's hair nicotine concentration and urine cotinine concentration. Furthermore, the paperdiscusses how the uncertainty in actual levels of exposure may lead to false estimates for the totalhealth impact of

  9. Contingency interim measure for the public water supply at Barnes, Kansas.

    Energy Technology Data Exchange (ETDEWEB)

    LaFreniere, L. M.; Environmental Science Division

    2009-07-09

    This document presents a conceptual design for a contingency interim measure (IM) for treatment of the public water supply system at Barnes, Kansas, should this become necessary. The aquifer that serves the public water supply system at Barnes has been affected by trace to low concentrations of carbon tetrachloride and its degradation product, chloroform. Investigations conducted on behalf of the CCC/USDA by Argonne National Laboratory (Argonne 2008a) have demonstrated that groundwater at the Barnes site is contaminated with carbon tetrachloride at concentrations exceeding the Kansas Tier 2 risk-based screening level (RBSL) and the EPA maximum contaminant level (MCL) of 5.0 {micro}g/L for this compound. The Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) formerly operated a grain storage facility in Barnes, approximately 800 ft east-southeast of the public water supply wells. Carbon tetrachloride was used in the treatment of grain. Another potential source identified in an investigation conducted for the KDHE (PRC 1996) is the site of a former agriculture building owned by the local school district (USD 223). This building is located immediately east of well PWS3. The potential contingency IM options evaluated in this report include the treatment of groundwater at the public water supply wellheads and the provision of an alternate water supply via Washington County Rural Water District No.2 (RWD 2). This document was developed in accordance with KDHE Bureau of Environmental Remediation (BER) Policy No.BER-RS-029 (Revised) (KDHE 2006a), supplemented by guidance from the KDHE project manager. Upon the approval of this contingency IM conceptual design by the KDHE, the CCC/USDA will prepare a treatment system design document that will contain the following elements: (1) Description of the approved contingency IM treatment method; (2) Drawings and/or schematics provided by the contractor and/or manufacturer of the approved technology; (3) A

  10. Compounding effects on nest-site dispersal of Barn Owls Tyto alba

    DEFF Research Database (Denmark)

    Huffeldt, Nicholas Per; Aggerholm, Iben Næs; Brandtberg, Nathia Hass;

    2012-01-01

    Capsule Recovery distances of Barn Owls ringed as pulli are conditional on ringing date but not on population density. Aims To test whether ring recovery distances (proxy for natal dispersal distances) were conditional on population density and reproductive timing. Methods We used ringing data of...... from 0 to 100 days after ringing, being stable thereafter, and was also impacted by brood size. Owls ringed very early or late in the breeding season were more likely to be recovered < 1 km from the nest-site at a recovery time where dispersal seemed to be completed....

  11. Involutions on the the Barnes-Wall lattices and their fixed point sublattices, I

    OpenAIRE

    Griess Jr., Robert L.

    2005-01-01

    We study the sublattices of the rank $2^d$ Barnes-Wall lattices $\\bw d$ which occur as fixed points of involutions. They have ranks $2^{d-1}$ (for dirty involutions) or $2^{d-1}\\pm 2^{k-1}$ (for clean involutions), where $k$, the defect, is an integer at most $\\frac d 2$. We discuss the involutions on $\\bw d$ and determine the isometry groups of the fixed point sublattices for all involutions of defect 1. Transitivity results for the Bolt-Room-Wall group on isometry types of sublattices exten...

  12. Characterization of Bioaerosols from Dairy Barns: Reconstructing the Puzzle of Occupational Respiratory Diseases by Using Molecular Approaches

    OpenAIRE

    Blais Lecours, Pascale; Veillette, Marc; Marsolais, David; Duchaine, Caroline

    2012-01-01

    To understand the etiology of exposure-related diseases and to establish standards for reducing the risks associated with working in contaminated environments, the exact nature of the bioaerosol components must be defined. Molecular biology tools were used to evaluate airborne bacterial and, for the first time, archaeal content of dairy barns. Three air samplers were tested in each of the 13 barns sampled. Up to 106 archaeal and 108 bacterial 16S rRNA genes per m3 of air were detected. Archae...

  13. Sammenheng mellom drikkevannskvalitet og risiko for Type 1 diabetes blant barn under 16 år i Norge

    OpenAIRE

    Wold, Randi

    2011-01-01

    SAMMENDRAG Mål med studien: Formålet med denne studien er å undersøke assosiasjoner mellom utvalgte vann- kvalitetsvariable i norsk drikkevann og risiko for type 1 diabetes blant barn. Materiale og metode: Dette er en økologisk studie der antall barn under 16 år som har fått diagnosen type 1 diabetes per kommune er responsvariabel, og vannkvalitetsvariabler benyttes som eksponeringsvariable. Insidente tilfeller hentes fra Barnediabetesregisteret, mens de 16 undersøkte variable i ...

  14. Instrumentation strategies for energy conservation in broiler barns with ventilation air solar pre-heaters

    Energy Technology Data Exchange (ETDEWEB)

    Cordeau, Sebastien; Barrington, Suzelle [Department of Bioresource Engineering, Macdonald Campus of McGill University, 21 111 Lakeshore, Ste Anne de Bellevue, Quebec H9X 3V9 (Canada)

    2010-08-15

    At the present consumption rate, world fossil-fuel reserves are expected to be depleted by 2050 unless their consumption is optimized and supplemented with renewable energy sources. The objective of this project was to evaluate the performance of a simple data acquisition system installed to conduct an energy balance and identify energy saving strategies in two commercial broilers barns with ventilation air solar pre-heaters. Located near Montreal, Canada, the two identical barns were instrumented for inside and outside air conditions, ventilation rate and energy recovery by the solar air pre-heaters. Whereas the temperature, relative humidity and radiation sensors were reliable, inside air temperature stratification complicated energy balance analyses and broiler heat production rate calculations. Lack of room air mixing resulted in the loss of 25 and 15% of the generated heater load and recovered solar energy. The proper monitoring of all environmental conditions required their measurement every 5 rather than 20 min. Instead of using a data transmission service found to be unreliable in rural areas, all data loggers were downloaded onto a portable computer every 45 days during regular instrument maintenance. Accordingly, room air mixing is recommended to facilitate energy balance studies and improve the efficient use of heating energies. (author)

  15. Better-surviving barn swallow mothers produce more and better-surviving sons.

    Science.gov (United States)

    Romano, Andrea; Costanzo, Alessandra; Caprioli, Manuela; Parolini, Marco; Ambrosini, Roberto; Rubolini, Diego; Saino, Nicola

    2016-05-01

    Sex allocation theory predicts that parents are selected to bias their progeny sex ratio (SR) toward the sex that will benefit the most from parental quality. Because parental quality may differentially affect survival of sons and daughters, a pivotal test of the adaptive value of SR adjustment is whether parents overproduce offspring of the sex that accrues larger fitness advantages from high parental quality. However, this crucial test of the long-term fitness consequences of sex allocation decisions has seldom been performed. In this study of the barn swallow (Hirundo rustica), we showed a positive correlation between the proportion of sons and maternal annual survival. We then experimentally demonstrated that this association did not depend on the differential costs of rearing offspring of either sex. Finally, we showed that maternal lifespan positively predicted lifespan of sons but not of daughters. Because in barn swallows lifespan is a strong determinant of lifetime reproductive success, the results suggest that mothers overproduce offspring of the sex that benefits the most from maternal quality. Hence, irrespective of mechanisms causing the SR bias and mother-son covariation in lifespan, we provide strong evidence that sex allocation decisions of mothers can highly impact on their lifetime fitness. PMID:26990898

  16. Clock gene polymorphism and scheduling of migration: a geolocator study of the barn swallow Hirundo rustica.

    Science.gov (United States)

    Bazzi, Gaia; Ambrosini, Roberto; Caprioli, Manuela; Costanzo, Alessandra; Liechti, Felix; Gatti, Emanuele; Gianfranceschi, Luca; Podofillini, Stefano; Romano, Andrea; Romano, Maria; Scandolara, Chiara; Saino, Nicola; Rubolini, Diego

    2015-01-01

    Circannual rhythms often rely on endogenous seasonal photoperiodic timers involving 'clock' genes, and Clock gene polymorphism has been associated to variation in phenology in some bird species. In the long-distance migratory barn swallow Hirundo rustica, individuals bearing the rare Clock allele with the largest number of C-terminal polyglutamine repeats found in this species (Q8) show a delayed reproduction and moult later. We explored the association between Clock polymorphism and migration scheduling, as gauged by light-level geolocators, in two barn swallow populations (Switzerland; Po Plain, Italy). Genetic polymorphism was low: 91% of the 64 individuals tracked year-round were Q7/Q7 homozygotes. We compared the phenology of the rare genotypes with the phenotypic distribution of Q7/Q7 homozygotes within each population. In Switzerland, compared to Q7/Q7, two Q6/Q7 males departed earlier from the wintering grounds and arrived earlier to their colony in spring, while a single Q7/Q8 female was delayed for both phenophases. On the other hand, in the Po Plain, three Q6/Q7 individuals had a similar phenology compared to Q7/Q7. The Swiss data are suggestive for a role of genetic polymorphism at a candidate phenological gene in shaping migration traits, and support the idea that Clock polymorphism underlies phenological variation in birds. PMID:26197782

  17. Fitness loss and germline mutations in barn swallows breeding in Chernobyl

    International Nuclear Information System (INIS)

    The severe nuclear accident at Chernobyl in 1986 resulted in the worst reported accidental exposure of radioactive material to free-living organisms. Short-term effects on human populations inhabiting polluted areas include increased incidence of thyroid cancer, infant leukaemia, and congenital malformations in newborns. Two recent studies have reported, although with some controversy, that germline mutation rates were increased in humans and voles living close to Chernobyl, but little is known about the viability of the organisms affected. Here we report an increased frequency of partial albinism, a morphological aberration associated with a loss of fitness, among barn swallows, Hirundo rustica, breeding close to Chernobyl. Heretability estimates indicate that mutations causing albinism were at least partly of germline origin. Furthermore, evidence for an increased germline mutation rate was obtained from segregation analysis at two hypervariable microsatellite loci, indicating that mutation events in barn swallows from Chernobyl were two- to tenfold higher than in birds from control areas in Ukraine and Italy. (author)

  18. Fitness loss and germline mutations in barn swallows breeding in Chernobyl

    Energy Technology Data Exchange (ETDEWEB)

    Ellegren, Hans; Lindgren, Gabriella; Primmer, C.R. [Swedish Univ. of Agricultural Sciences, Animal Breeding and Genetics Dept., Uppsala (Sweden); Moeller, A.P. [Universite Pierre et Marie Curie. Lab. d`Ecologie, Paris, 75 (France)

    1997-10-09

    The severe nuclear accident at Chernobyl in 1986 resulted in the worst reported accidental exposure of radioactive material to free-living organisms. Short-term effects on human populations inhabiting polluted areas include increased incidence of thyroid cancer, infant leukaemia, and congenital malformations in newborns. Two recent studies have reported, although with some controversy, that germline mutation rates were increased in humans and voles living close to Chernobyl, but little is known about the viability of the organisms affected. Here we report an increased frequency of partial albinism, a morphological aberration associated with a loss of fitness, among barn swallows, Hirundo rustica, breeding close to Chernobyl. Heretability estimates indicate that mutations causing albinism were at least partly of germline origin. Furthermore, evidence for an increased germline mutation rate was obtained from segregation analysis at two hypervariable microsatellite loci, indicating that mutation events in barn swallows from Chernobyl were two- to tenfold higher than in birds from control areas in Ukraine and Italy. (author).

  19. POPULATION ECOLOGY AND CONSERVATION OF THE BARN OWL TYTO-ALBA IN FARMLAND HABITATS IN LIEMERS AND ACHTERHOEK (THE NETHERLANDS)

    NARCIS (Netherlands)

    DEBRUIJN, O

    1994-01-01

    Over the last decades, the Barn Owl population has markedly decreased in range and breeding numbers in The Netherlands as in most western European countries. For effective conservation and population management, it is essential to know which factors are responsible for this decline. The present stud

  20. Methane and nitrous oxide analyzer comparison and emissions from dairy freestall barns with manure flushing and scraping

    Science.gov (United States)

    Cortus, Erin L.; Jacobson, Larry D.; Hetchler, Brian P.; Heber, Albert J.; Bogan, Bill W.

    2015-01-01

    Continuous methane (CH4) and nitrous oxide (N2O) emission measurements were conducted at two crossflow-ventilated dairy freestall barns located in the state of Wisconsin, USA during a 19-month period from 2008 to 2010. The two cross-flow mechanically ventilated buildings (275 and 375 cow capacities) were evaluated in the National Air Emissions Monitoring Study. In September of 2008, the barns' manure collection systems were changed from flushing open gutter using manure basin effluent to a tractor scrape. A photoacoustic multi-gas analyzer (PAMGA) and a direct methane/non-methane hydrocarbon analyzer (GC-FID) provided side-by-side measurements of methane (CH4) for 13 months. The PAMGA also measured nitrous oxide (N2O), and a side-by-side comparison was performed with a gas-filter correlation analyzer (GFC) for six months. Barn ventilation rates were measured by recording run times of the 127-cm diameter exhaust fans. All 125 belt-driven exhaust fans were identical, and in situ airflow measurements using the Fan Assessment Numeration System (FANS) were conducted once at the beginning and twice during the test. Daily CH4 and N2O emission rates were calculated over approximately 19 and 6 month periods respectively, on per barn, head, animal unit, floor area space and barn capacity bases. The differences between the analyzers' concentration measurements were compared in conjunction with water vapor and other gases. The analyzer type had a significant impact on the average CH4 emission rate (p GFC were very low, with an approximate rate of only 690 mg AU-1 d-1 (970 mg cow-1 d-1). The change in manure collection had no apparent effect on N2O emission.

  1. Föräldrars erfarenheter av onlinespelande barn : En kvalitativ studie kring problemformuleringar och orsakssamband

    OpenAIRE

    Lundgren, Annelie

    2012-01-01

    Bakgrund: Barn har alltid haft andra förutsättningar än deras föräldrar. En skillnad idag jämfört med tidigare generationer är bland annat tillgång till nya medier för nöje, interaktion och informationssökande. Ett sätt att umgås på, är genom interaktiva onlinespel i en virtuell värld som aldrig tidigare varit möjligt. Detta har i vissa avseenden inneburit att frågor ställts över dess nackdelar i kontrast till den tjusning som onlinespelandet innebär. Syfte: Att beskriva och analysera hur för...

  2. Avian wing geometry and kinematics of a free-flying barn owl in flapping flight

    Science.gov (United States)

    Wolf, Thomas; Konrath, Robert

    2015-02-01

    This paper presents results of high-resolution three-dimensional wing shape measurements performed on free-flying barn owls in flapping flight. The applied measurement technique is introduced together with a moving camera set-up, allowing for an investigation of the free flapping flight of birds with high spatial and temporal resolution. Based on the three-dimensional surface data, a methodology for parameterizing the wing profile along with wing kinematics during flapping flight has been developed. This allowed a description of the spanwise varying kinematics and aerodynamic parameters (e.g. effective angles of attack, camber, thickness) of the wing in dependence on the flapping phase. The results are discussed in detail using the data of a single flight, whereas a comparison of some kinematic parameters obtained from different flights is given too.

  3. Investigation into levels of dioxins, furans and PCBs in battery, free range, barn and organic eggs

    Energy Technology Data Exchange (ETDEWEB)

    Tlustos, C.; Pratt, I. [Food Safety Authority of Ireland, Dublin (Ireland); Moylan, R.; Neilan, R. [Dept. of Agriculture and Food, Maynooth (Ireland); White, S.; Fernandes, A.; Rose, M. [Central Science Lab., York (United Kingdom)

    2004-09-15

    The Food Safety Authority of Ireland (FSAI) has a statutory responsibility to assure the safety of food consumed, distributed, produced and sold on the Irish market. The results of a targeted surveillance study on levels of dioxins, furans and polychlorinated biphenyls (PCBs) in battery, free-range, barn and organic eggs are presented here. The study was undertaken against the background of increased awareness in the European Union of the possible health risks posed by dioxins, furans and polychlorinated biphenyls (PCBs) in the food chain, and builds on previous studies undertaken by FSAI into levels of these contaminants in milk, fish and fish oils. The opportunity was taken at the same time to investigate the levels of a number of metals in these eggs, and results of the full study are available on the FSAI website.

  4. Ferrofluid Simulations with the Barnes-Hut Algorithm on Graphics Processing Units

    CERN Document Server

    Polyakov, A Yu; Denisov, S; Reva, V V; Hanggi, P

    2012-01-01

    We present an approach to molecular-dynamics simulations of dilute ferrofluids on graphics processing units (GPUs). Our numerical scheme is based on a GPU-oriented modification of the Barnes-Hut (BH) algorithm designed to increase the parallelism of computations. For an ensemble consisting of one million of ferromagnetic particles, the performance of the proposed algorithm on a Tesla M2050 GPU demonstrated a computational-time speed-up of four order of magnitude compared to the performance of the sequential All-Pairs (AP) algorithm on a single-core CPU, and two order of magnitude compared to the performance of the optimized AP algorithm on the GPU. The accuracy of the scheme is corroborated by comparing theoretical predictions with the results of numerical simulations.

  5. Prey selection by the Barn Owl Tyto alba (Scopoli, 1769 in captivity

    Directory of Open Access Journals (Sweden)

    V. Vanitha

    2009-07-01

    Full Text Available We investigated prey selection of the Barn Owl Tyto alba under captive conditions where birds were allowed to choose among individuals of varying size from four field rodent species: Bandicota bengalensis, Millardia meltada, Tatera indica and Mus booduga. Owls showed little species preference and a tendency to favour the medium weight class in all prey species except M. booduga. Preference for body parts consumed varied according to prey size, ranging from the head alone in the large weight class to the entire body in the small weight class. Biochemical measurements showed that protein, carbohydrate and lipid levels were higher respectively in the brain, liver and muscles of all three species and weight classes studied. The preference for medium weight prey despite a lower nutrient content compared to large weight prey is attributed to a greater ease of capture.

  6. Independence of echo-threshold and echo-delay in the barn owl.

    Directory of Open Access Journals (Sweden)

    Brian S Nelson

    Full Text Available Despite their prevalence in nature, echoes are not perceived as events separate from the sounds arriving directly from an active source, until the echo's delay is long. We measured the head-saccades of barn owls and the responses of neurons in their auditory space-maps while presenting a long duration noise-burst and a simulated echo. Under this paradigm, there were two possible stimulus segments that could potentially signal the location of the echo. One was at the onset of the echo; the other, after the offset of the direct (leading sound, when only the echo was present. By lengthening the echo's duration, independently of its delay, spikes and saccades were evoked by the source of the echo even at delays that normally evoked saccades to only the direct source. An echo's location thus appears to be signaled by the neural response evoked after the offset of the direct sound.

  7. Characterization of Prototheca zopfii Genotypes Isolated from Cases of Bovine Mastitis and Cow Barns in China.

    Science.gov (United States)

    Shahid, Muhammad; Ali, Tariq; Zhang, Limei; Hou, Rongguang; Zhang, Shiyao; Ding, Laidi; Han, Dandan; Deng, Zhaoju; Rahman, Abdur; Han, Bo

    2016-04-01

    Protothecal mastitis, caused mostly by Prototheca zopfii (P. zopfii), is increasing in dairy herds and is being reported globally. The present study was aimed at studying the epidemiology of mastitis and at molecular characterization of P. zopfii isolates from dairy herds and their surroundings in three provinces of China using microbiological, biochemical and molecular methods, and antibiotic susceptibility tests. Samples from milk (n = 620) of mastitic cows and their barns sources (n = 410) including feces, feed, bedding materials and drinking water were analyzed. Among other pathogens recovered from mastitic milk, 84 (13.5 %) of the isolates were identified as P. zopfii. All of the P. zopfii isolates recovered from milk were recognized as genotype 2, whereas 58 (73.4 %) and 21 (26.6 %) isolates from environmental sources were found to be P. zopfii genotypes 1 and 2, respectively. The isolates were susceptible to some antibiotics and antifungal agents, including amikacin (78.1 %), streptomycin (58.5 %), gentamicin (17.8 %), amphotericin B (68.6 %) and nystatin (64.4 %). Additionally, the two genotypes displayed versatile patterns of susceptibility to different antimicrobials agents. Phylogeny of the genotypes on the basis of 18S SSU rDNA and 28S SSU rDNA was also investigated. The isolates of the two genotypes separated into different clades, and no interrelationship was observed among these as shown by phylogenetic analysis. The genotype 1 isolates from cow barn sources were non-pathogenic and may not present any risk of mastitis. We conclude that P. zopfii genotype 2 might play an important role in bovine mastitis in China. PMID:26450620

  8. Hematologic and plasma biochemistry reference intervals of healthy adult barn owls (Tyto alba).

    Science.gov (United States)

    Szabo, Zoltan; Klein, Akos; Jakab, Csaba

    2014-06-01

    Hematologic and plasma biochemistry parameters of barn owls (Tyto alba) were studied in collaboration by the Exotic Division of the Faculty of Veterinary Science of the Szent Istvan University and the Eötvös Loránd University, both in Budapest, Hungary. Blood samples were taken from a total of 42 adult barn owls kept in zoos and bird repatriation stations. The following quantitative and qualitative hematologic values were determined: packed cell volume, 46.2 +/- 4%; hemoglobin concentration, 107 +/- 15 g/L; red blood cell count, 3.2 +/- 0.4 x 10(12)/L; white blood cell count, 13.7 +/- 2.7 x 10(9)/L; heterophils, 56.5 +/- 11.5% (7.8 +/- 2 x 10(9)/L); lymphocytes, 40.3 +/- 10.9% (5.5 +/- 1.9 x 10(9)/L); monocytes, 1.8 +/- 2.1% (0.3 +/- 0.3 x 10(9)/ L); eosinophils, 1 +/- 1% (0.1 +/- 0.1 x 10(9)/L); and basophils, 0.6 +/- 0.5% (0.1 +/- 0.1 x 10(9)/L). The following plasma biochemistry values also were determined: aspartate aminotransferase, 272 +/- 43 U/L; L-gamma-glutamyltransferase, 9.5 +/- 4.7 U/L; lipase, 31.7 +/- 11.1 U/L; creatine kinase, 2228 +/- 578 U/L; lactate dehydrogenase, 1702 +/- 475 U/L; alkaline phosphatase, 358 +/- 197 U/L; amylase, 563 +/- 114 U/L; glutamate dehydrogenase, 7.5 +/- 2.5 U/L; total protein, 30.6 +/- 5.3 g/L; uric acid, 428 +/- 102 micromol/L; and bile acids, 43 +/- 18 micromol/L. These results provide reliable reference values for the clinical interpretation of hematologic and plasma biochemistry results for the species. PMID:25055626

  9. Vi trenger longitudinelle epidemiologiske undersøkelser av psykiske lidelser og utviklingsforstyrrelser hos barn

    Directory of Open Access Journals (Sweden)

    Bente Gjærum

    2009-10-01

    Full Text Available  sAMMENDRAGArtikkelen gjennomgår nyere forekomststudier for utviklings- og atferdsforstyrrelser, nevrologiske og psykiskelidelser hos barn og ungdom. Forfatterne peker på den betydelige komorbiditet som sees for disse grupperav tilstander, og den tverrfaglige bredde som synes nødvendig for å forstå hvilke faktorer og mekanismer sompåvirker barns utvikling og psykiske helse. I tillegg refereres nyere forskning på forløp og varighet vedavvikende utvikling i oppveksten, samt eksempler på undersøkelser av beskyttelsesfaktorer såvel som genetiskefaktorer av betydning for å forstå de typer tilstander som her er fokusert. Til slutt nevnes de muligheteneulike typer prospektiv, epidemiologisk forskning i et utviklingsperspektiv vil gi til en bedret forståelse avårsaks- og utviklingsforhold, samt forløp og prognose for disse tilstandene. Slik kunnskap antas å ville gibedre muligheter til samfunnsmessig planlegging av forebyggende arbeid og individuell behandling.Gjærum B, Nøvik TS. There is a need for longitudinal studies of psychiatric and developmentaldisorders in children.   ENGLISH SUMMARYThis article reviews recent prevalence studies of developmental and behavioural disorders, and neurologicaland psychiatric disorders in children and adolescents. The authors highlight the degree of comorbidity amongthese conditions and emphasize the complexity of models that should be used in order to understand howdifferent factors and mechanisms affect children's development and mental health. Further, studies of courseand duration of deviant development in childhood, studies of protective factors and contributions frombehavioural genetic studies to the understanding of these conditions, are addressed. Finally, the authorsdiscuss the possibility of using prospective, epidemiological studies in a developmental perspective in order tounderstand etiological and developmental factors, course and prognosis. Such knowledge would lay thefoundations

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

    Directory of Open Access Journals (Sweden)

    Nicola Saino

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

  11. Viability is associated with melanin-based coloration in the barn swallow (Hirundo rustica.

    Directory of Open Access Journals (Sweden)

    Nicola Saino

    Full Text Available Pigmentation of body surface in animals can have multiple determinants and accomplish diverse functions. Eumelanin and pheomelanin are the main animal pigments, being responsible of yellow, brownish-red and black hues, and have partly common biosynthetic pathways. Many populations of vertebrates show individual variation in melanism, putatively with large heritable component. Genes responsible for eu- or pheomelanogenesis have pleiotropic but contrasting effects on life-history traits, explaining the patterns of covariation observed between melanization and physiology (e.g. immunity and stress response, sexual behavior and other characters in diverse taxa. Yet, very few studies in the wild have investigated if eu- and pheomelanization predict major fitness traits like viability or fecundity. In this correlative study, by contrasting adult barn swallows (Hirundo rustica matched for age, sex, breeding site, and year and date of sampling, we show that males but not females that survived until the next year had paler, relatively more eu- than pheomelanic pigmentation of ventral body feathers. Better performance of individuals that allocate relatively more to eumelanogenesis was expected based on previous evidence on covariation between eumelanic pigmentation and specific traits related to immunity and susceptibility to stress. However, together with the evidence of no covariation between viability and melanization among females, this finding raises the question of the mechanisms that maintain variation in genes for melanogenesis. We discuss the possibility that eu- and pheomelanization are under contrasting viability and sexual selection, as suggested by larger breeding and sperm competition success of darker males from other barn swallow subspecies.

  12. Distriktssköterskornas upplevelser av möten med våldutsatta kvinnor och deras barn : En deskriptiv kvalitativ intervjustudie

    OpenAIRE

    Lobanova, Olga

    2012-01-01

    Bakgrund: Distriktssköterskor på BVC möter ibland våldutsatta kvinnor och deras barn i sitt arbete. Följder av våld i nära relationer kan vara försämrad psykosocial hälsa både hos kvinnor och barn. Att tidigt upptäcka och hjälpa en sådan kvinna och hennes barn är ett viktigt uppdrag som distriktssköterskan har på BVC. Syftet med studien var att undersöka distriktssköterskornas upplevelser av möten med våldutsatta kvinnor och deras barn på BVC samt ta reda på vad som saknas kunskaps- och metod...

  13. Starch gel and cellulose acetate electrophoretic analysis of allozyme frequencies in barn swallow (Hirundo rustica) populations at a dioxin contaminated site in northern Louisiana

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This study compared the genetic variability of Louisiana barn swallows at a dioxin-contaminated wetland to two reference populations. Allozyme frequencies,...

  14. Tillfälliga föräldrar : - En studie om familjehemsföräldrars resonemang kring placerade barns anknytning

    OpenAIRE

    Hart, Sara; Crnoja, Monika

    2014-01-01

    Studien har syftat till att få en förståelse för familjehemsföräldrars perspektiv på anknytning och vad de menar att det finns för svårigheter och möjligheter gällande anknytning för barn som placeras i familjehem. Studien berör även hur relationen mellan barn och familjehemsförälder förändras över tid och hur samspel mellan barn och familjehemsföräldrar, barn och de biologiska föräldrarna och barnets tidigare erfarenheter kan påverka anknytningen. Studien är kvalitativ och bygger på intervju...

  15. Miljöutbildande spel : förslag till nytt spel för barn 6-8 år Gro Play AB

    OpenAIRE

    Mirzaei Langroodi, Negar

    2011-01-01

    Kan barn leka sig till en miljövänligare livsstil? Svaret är ja, om du frågar Patricia Rawecka, vd på företaget Gro Play AB. Hon har själv designat och utvecklat tre pussel för barn i åldrarna 3-5 år som både är miljövänliga och miljöutbildande. Med tanke på dagens extrema konsumtionskultur ville hon med god design, pedagogik och via barns lek motivera nästkommande generation till en mer hållbar livsstil. Visionen för hennes företag och även för detta examensarbete har varit att ge barn en ch...

  16. Morphometric characterisation of wing feathers of the barn owl Tyto alba pratincola and the pigeon Columba livia

    Directory of Open Access Journals (Sweden)

    Klaas Michael

    2007-11-01

    Full Text Available Abstract Background Owls are known for their silent flight. Even though there is some information available on the mechanisms that lead to a reduction of noise emission, neither the morphological basis, nor the biological mechanisms of the owl's silent flight are known. Therefore, we have initiated a systematic analysis of wing morphology in both a specialist, the barn owl, and a generalist, the pigeon. This report presents a comparison between the feathers of the barn owl and the pigeon and emphasise the specific characteristics of the owl's feathers on macroscopic and microscopic level. An understanding of the features and mechanisms underlying this silent flight might eventually be employed for aerodynamic purposes and lead to a new wing design in modern aircrafts. Results A variety of different feathers (six remiges and six coverts, taken from several specimen in either species, were investigated. Quantitative analysis of digital images and scanning electron microscopy were used for a morphometric characterisation. Although both species have comparable body weights, barn owl feathers were in general larger than pigeon feathers. For both species, the depth and the area of the outer vanes of the remiges were typically smaller than those of the inner vanes. This difference was more pronounced in the barn owl than in the pigeon. Owl feathers also had lesser radiates, longer pennula, and were more translucent than pigeon feathers. The two species achieved smooth edges and regular surfaces of the vanes by different construction principles: while the angles of attachment to the rachis and the length of the barbs was nearly constant for the barn owl, these parameters varied in the pigeon. We also present a quantitative description of several characteristic features of barn owl feathers, e.g., the serrations at the leading edge of the wing, the fringes at the edges of each feather, and the velvet-like dorsal surface. Conclusion The quantitative

  17. Specialpedagogiska metoder som främjar utvecklingen hos barn med autism samt hur dessa påverkar barn och föräldra-/vårdarrelation-en litteraturstudie

    OpenAIRE

    Solvarm, Rosemary

    2008-01-01

    Autism är ett livslångt handikapp som ställer stora krav på familj, skola, sjukvård samt övriga personer som på olika sätt kommer i kontakt med dessa barn. Pedagoger och vårdare behöver medvetandegöras om sina föreställningar eftersom dessa styr bemötandet. Målet för behandlingen är målmedveten träning eftersom förmåga till social inlevelseförmåga mer eller mindre saknas hos såväl barn som vuxna med autism. Syftet med litteraturstudien var att belysa metoder som fanns för att främja utvecklin...

  18. Sambandet mellan övervikt/fetma och orala sjukdomar hos barn och ungdomar : En litteraturöversikt

    OpenAIRE

    Khanbhai, Rashida; Hanna, Nareeman

    2015-01-01

    Bakgrund: Övervikt/fetma är ett hälsoproblem som snabbt ökar i Sverige och hela världen. Övervikt/fetma, karies och parodontit är alla kroniska och multifaktoriella sjukdomar. Dessa sjukdomar är vanligt förekommande hos både barn och ungdomar. De orala sjukdomarna är förknippade med ohälsosamma kostvanor som påverkar både orala- och allmänna hälsan och som i sin tur kan påverka vikten hos barn och ungdomar. Syfte: Att studera om det finns ett eventuellt samband mellan övervikt/fetma och orala...

  19. Ambulanssjuksköterskors upplevelser av smärtlindring av barn i en prehospital kontext - en kvalitativ intervjustudie

    OpenAIRE

    Ekstrand, Magnus; Hed, Kristina

    2014-01-01

    Syftet med denna studie är att studera ambulanssjuksköterskors upplevelser av att bedöma och vårda barn under tio års ålder med akut smärta i en prehospital kontext.   Metod: Studien utfördes som en kvalitativ empirisk intervjustudie baserad på fem öppna frågor. Tio ambulanssjuksköterskor intervjuades och fick beskriva positiva och negativa upplevelser av att omhänderta barn 0-10 år med akut smärta i prehospital kontext. Materialet analyserades genom en kvalitativ innehållsanalys med en manif...

  20. Att hjälpa barn i kris : En litteraturöversikt om krisarbete på daghem

    OpenAIRE

    Backman, Sofia

    2011-01-01

    Detta examensarbete handlar om barn i kris och krisberedskap på daghem. Syftet är att utgående från litteratur och forskningar ta reda på hur personal på daghem kan stöda barn som utsatts för en krissituation, samt hur en bra beredskapsplan kan se ut för att personalen på daghemmen ska få en bra grund att utgå från. Utgående från arbetets syfte har två forskningsfrågor formulerats: vad ska en bra beredskapsplan innehålla och hur kan man förbereda sig inför en eventuell krissituation? Hur stöd...

  1. Sex-related effects of an immune challenge on growth and begging behavior of barn swallow nestlings

    OpenAIRE

    Andrea Romano; Diego Rubolini; Manuela Caprioli; Giuseppe Boncoraglio; Roberto Ambrosini; Nicola Saino

    2011-01-01

    Parent-offspring conflicts lead the offspring to evolve reliable signals of individual quality, including parasite burden, which may allow parents to adaptively modulate investment in the progeny. Sex-related variation in offspring reproductive value, however, may entail differential investment in sons and daughters. Here, we experimentally manipulated offspring condition in the barn swallow (Hirundo rustica) by subjecting nestlings to an immune challenge (injection with bacterial lipopolysac...

  2. Individual vocal signatures in barn owl nestlings: does individual recognition have an adaptive role in sibling vocal competition?

    OpenAIRE

    Dreiss A.N.; Ruppli C.A.; Roulin A.

    2014-01-01

    To compete over limited parental resources, young animals communicate with their parents and siblings by producing honest vocal signals of need. Components of begging calls that are sensitive to food deprivation may honestly signal need, whereas other components may be associated with individual-specific attributes that do not change with time such as identity, sex, absolute age and hierarchy. In a sib-sib communication system where barn owl (Tyto alba) nestlings vocally negotiate priority ac...

  3. Pegasta sova Tyto alba v JV delu Prekmurja: Barn owl Tyto alba in the SE part of Prekmurje (NE Slovenia):

    OpenAIRE

    Katalinič, Dane

    2000-01-01

    During 1995-1999, three localities where regular presence of Barn Owls was established were discovered in the SE part of Prekmurje covering some 225 km2.The owls inhabit the abandoned state cowsheds. V JV delu Prekmurja so bile na območju, velikem 225 km2, med letoma 1995 in 1999 najdene tri lokalitete, kjer je bilo ugotovljeno redno pojavljanj pegastih sov. Sove naseljujejo zapuščene družbene hleve.

  4. Early blindness results in a degraded auditory map of space in the optic tectum of the barn owl.

    OpenAIRE

    Knudsen, E I

    1988-01-01

    The optic tectum of the barn owl (Tyto alba) contains a neural map of auditory space consisting of neurons that are sharply tuned for sound source location and organized precisely according to their spatial tuning. The importance of vision for the development of this auditory map was investigated by comparing space maps measured in normal owls with those measured in owls raised with both eyelids sutured closed. The results demonstrate that owls raised without sight, but with normal hearing, d...

  5. Evolutionary divergence in sexual signals: Insights from within and among barn swallow populations

    Science.gov (United States)

    Wilkins, Matthew Reed

    A wealth of studies across diverse animal groups indicate the importance of sexual selection in shaping phenotypes within and across breeding populations. In recent decades, much research has focused on how divergent sexual selection pressures among populations may lead to speciation. For my first dissertation chapter, I performed a literature review on the causes and consequences of evolutionary divergence in acoustic signals and developed the acoustic window conceptual framework for understanding the contributions of selection, genetic drift, and evolutionary constraint to signal divergence. Further, I found that sexual selection explains acoustic differences between recently diverged populations of the best-studied taxa. However, the relative contributions of ecological selection, sexual selection, and drift to acoustic divergence have not typically been considered within the same study systems. The remainder of my dissertation used the Northern Hemisphere-distributed barn swallow ( Hirundo rustica) species complex as a model system to study sender-receiver dynamics, intra- and intersexual selection pressures, and visual and acoustic signal interactions at the local scale, and signal divergence across populations at the global scale. From song recordings taken across 19 sampling sites, spanning five of six described subspecies, I demonstrated considerable conservation in song structure. However, temporal traits were highly divergent across subspecies, and in particular, the speed of the terminal trill of songs. In a detailed study of the multimodal communication system of the barn swallow (including visual and acoustic traits), I demonstrated that males and females use different types of signals to mediate competition and mate choice. One of the only exceptions to this rule was trill rate, which was also implicated in song divergence across populations. In order to test the function of trill rate in communication, I performed a two-year playback study within the

  6. Solution to Bethe-Salpeter equation via Mellin-Barnes transform

    Energy Technology Data Exchange (ETDEWEB)

    Allendes, Pedro [Concepcion Univ. (Chile). Dept. de Fisica; Kniehl, Bernd [Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik; Kondrashuk, Igor; Rojas Medar, Marko [Univ. del Bio-Bio, Chillan (Chile). Dept. de Ciencias Basicas; Notte Cuello, Eduardo A. [Univ. de La Serena (Chile). Facultad de Ciencias

    2012-06-15

    We consider Mellin-Barnes transform of triangle ladder-like scalar diagram in d=4 dimensions. It is shown how multi-fold MB transform of the momentum integral corresponding to any number of rungs is reduced to two-fold MB transform. For this purpose we use Belokurov-Usyukina reduction method for four-dimensional scalar integrals in the position space. The result is represented in terms of Euler {psi}-function and its derivatives. We derive new formulas for MB two-fold integration in the complex planes of two complex variables. We demonstrate that these formulas solve Bethe-Salpeter equation. We comment on further applications of solution to Bethe-Salpeter equation for vertices in N=4 supersymmetric Yang-Mills theory. We show that the recursive property of MB transforms observed in the present work for that kind of diagrams has nothing to do with quantum field theory, theory of integral transforms, or with theory of polylogarithms in general, but has an origin in a simple recursive property for smooth functions which can be shown by using basic methods of mathematical analysis.

  7. Two-fold Mellin-Barnes transforms of Usyukina-Davydychev functions

    Energy Technology Data Exchange (ETDEWEB)

    Kniehl, Bernd [Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik; Kondrashuk, Igor [Univ. del Bio Bio, Chillan (Chile). Dept. de Ciencias Basicas; Bielefeld Univ. (Germany). Fakultaet fuer Physik; Notte-Cuello, Eduardo A. [Univ. de La Serena (Chile). Dept. de Matematicas; Parra-Ferrada, Ivan [Univ. del Bio Bio, Chillan (Chile). Facultad de Educacion y Humanidades; Rojas-Medar, Marko [Univ. del Bio Bio, Chillan (Chile). Dept. de Ciencias Basicas

    2013-04-15

    In our previous paper (Nucl.Phys.B 870 (2013) 243) we showed that multi-fold Mellin-Barnes (MB) transforms of the Usyukina-Davydychev (UD) functions may be reduced to two-fold MB transforms. The MB transforms were written there as polynomials of logarithms of ratios of squares of the external momenta with certain coefficients. We also showed that these coefficients have a combinatoric origin. In this paper we present an explicit formula for these coefficients. The procedure of recovering the coefficients is based on taking the double uni-form limit in certain series of smooth functions of two variables which is constructed according to a pre-determined iterative way. The result is obtained by using basic methods of mathematical analysis. We observe that the finiteness of the limit of this iterative chain of smooth functions should reflect itself in other mathematical constructions, too, since it is not related in any way to the explicit form of the MB transforms.

  8. Two-fold Mellin–Barnes transforms of Usyukina–Davydychev functions

    International Nuclear Information System (INIS)

    In our previous paper (Allendes et al., 2013 [10]), we showed that multi-fold Mellin–Barnes (MB) transforms of Usyukina–Davydychev (UD) functions may be reduced to two-fold MB transforms. The MB transforms were written there as polynomials of logarithms of ratios of squares of the external momenta with certain coefficients. We also showed that these coefficients have a combinatoric origin. In this paper, we present an explicit formula for these coefficients. The procedure of recovering the coefficients is based on taking the double-uniform limit in certain series of smooth functions of two variables which is constructed according to a pre-determined iterative way. The result is obtained by using basic methods of mathematical analysis. We observe that the finiteness of the limit of this iterative chain of smooth functions should reflect itself in other mathematical constructions, too, since it is not related in any way to the explicit form of the MB transforms. This finite double-uniform limit is represented in terms of a differential operator with respect to an auxiliary parameter which acts on the integrand of a certain two-fold MB integral. To demonstrate that our result is compatible with original representations of UD functions, we reproduce the integrands of these original integral representations by applying this differential operator to the integrand of the simple integral representation of the scalar triangle four-dimensional integral J(1,1,1−ε)

  9. Two-fold Mellin–Barnes transforms of Usyukina–Davydychev functions

    Energy Technology Data Exchange (ETDEWEB)

    Kniehl, Bernd A., E-mail: kniehl@desy.de [II. Institut für Theoretische Physik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg (Germany); Kondrashuk, Igor [Grupo de Matemática Aplicada, Departamento de Ciencias Básicas, Universidad del Bío-Bío, Campus Fernando May, Casilla 447, Chillán (Chile); Fakultät für Physik, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld (Germany); Notte-Cuello, Eduardo A. [Departamento de Matemáticas, Facultad de Ciencias, Universidad de La Serena, Av. Cisternas 1200, La Serena (Chile); Parra-Ferrada, Ivan [Carrera de Pedagogia en Matemática, Facultad de Educación y Humanidades, Universidad del Bío-Bío, Campus Castilla, Casilla 447, Chillán (Chile); Rojas-Medar, Marko [Grupo de Matemática Aplicada, Departamento de Ciencias Básicas, Universidad del Bío-Bío, Campus Fernando May, Casilla 447, Chillán (Chile)

    2013-11-01

    In our previous paper (Allendes et al., 2013 [10]), we showed that multi-fold Mellin–Barnes (MB) transforms of Usyukina–Davydychev (UD) functions may be reduced to two-fold MB transforms. The MB transforms were written there as polynomials of logarithms of ratios of squares of the external momenta with certain coefficients. We also showed that these coefficients have a combinatoric origin. In this paper, we present an explicit formula for these coefficients. The procedure of recovering the coefficients is based on taking the double-uniform limit in certain series of smooth functions of two variables which is constructed according to a pre-determined iterative way. The result is obtained by using basic methods of mathematical analysis. We observe that the finiteness of the limit of this iterative chain of smooth functions should reflect itself in other mathematical constructions, too, since it is not related in any way to the explicit form of the MB transforms. This finite double-uniform limit is represented in terms of a differential operator with respect to an auxiliary parameter which acts on the integrand of a certain two-fold MB integral. To demonstrate that our result is compatible with original representations of UD functions, we reproduce the integrands of these original integral representations by applying this differential operator to the integrand of the simple integral representation of the scalar triangle four-dimensional integral J(1,1,1−ε)

  10. Nestling rearing is antioxidant demanding in female barn swallows ( Hirundo rustica)

    Science.gov (United States)

    Costantini, David; Bonisoli-Alquati, Andrea; Rubolini, Diego; Caprioli, Manuela; Ambrosini, Roberto; Romano, Maria; Saino, Nicola

    2014-07-01

    Reproduction is a demanding activity, since organisms must produce and, in some cases, protect and provision their progeny. Hence, a central tenet of life-history theory predicts that parents have to trade parental care against body maintenance. One physiological cost thought to be particularly important as a modulator of such trade-offs is oxidative stress. However, evidence in favour of the hypothesis of an oxidative cost of reproduction is contradictory. In this study, we manipulated the brood size of wild barn swallows Hirundo rustica soon after hatching of their nestlings to test whether an increase in nestling rearing effort translates into an increased oxidative damage and a decreased antioxidant protection at the end of the nestling rearing period. We found that, while plasma oxidative damage was unaffected by brood size enlargement, females rearing enlarged broods showed a decrease in plasma non-enzymatic antioxidants during the nestling rearing period. This was not the case among females rearing reduced broods and among males assigned to either treatment. Moreover, individuals with higher plasma oxidative damage soon after the brood size manipulation had lower plasma non-enzymatic antioxidants at the end of the nestling rearing period, suggesting that non-enzymatic antioxidants were depleted to buffer the negative effects of high oxidative damage. Our findings point to antioxidant depletion as a potential mechanism mediating the cost of reproduction among female birds.

  11. Input clustering in the normal and learned circuits of adult barn owls.

    Science.gov (United States)

    McBride, Thomas J; DeBello, William M

    2015-05-01

    Experience-dependent formation of synaptic input clusters can occur in juvenile brains. Whether this also occurs in adults is largely unknown. We previously reconstructed the normal and learned circuits of prism-adapted barn owls and found that changes in clustering of axo-dendritic contacts (putative synapses) predicted functional circuit strength. Here we asked whether comparable changes occurred in normal and prism-removed adults. Across all anatomical zones, no systematic differences in the primary metrics for within-branch or between-branch clustering were observed: 95-99% of contacts resided within clusters (<10-20 μm from nearest neighbor) regardless of circuit strength. Bouton volumes, a proxy measure of synaptic strength, were on average larger in the functionally strong zones, indicating that changes in synaptic efficacy contributed to the differences in circuit strength. Bootstrap analysis showed that the distribution of inter-contact distances strongly deviated from random not in the functionally strong zones but in those that had been strong during the sensitive period (60-250 d), indicating that clusters formed early in life were preserved regardless of current value. While cluster formation in juveniles appeared to require the production of new synapses, cluster formation in adults did not. In total, these results support a model in which high cluster dynamics in juveniles sculpt a potential connectivity map that is refined in adulthood. We propose that preservation of clusters in functionally weak adult circuits provides a storage mechanism for disused but potentially useful pathways. PMID:25701706

  12. Hunting Increases Phosphorylation of Calcium/Calmodulin-Dependent Protein Kinase Type II in Adult Barn Owls

    Directory of Open Access Journals (Sweden)

    Grant S. Nichols

    2015-01-01

    Full Text Available Juvenile barn owls readily adapt to prismatic spectacles, whereas adult owls living under standard aviary conditions do not. We previously demonstrated that phosphorylation of the cyclic-AMP response element-binding protein (CREB provides a readout of the instructive signals that guide plasticity in juveniles. Here we investigated phosphorylation of calcium/calmodulin-dependent protein kinase II (pCaMKII in both juveniles and adults. In contrast to CREB, we found no differences in pCaMKII expression between prism-wearing and control juveniles within the external nucleus of the inferior colliculus (ICX, the major site of plasticity. For prism-wearing adults that hunted live mice and are capable of adaptation, expression of pCaMKII was increased relative to prism-wearing adults that fed passively on dead mice and are not capable of adaptation. This effect did not bear the hallmarks of instructive information: it was not localized to rostral ICX and did not exhibit a patchy distribution reflecting discrete bimodal stimuli. These data are consistent with a role for CaMKII as a permissive rather than an instructive factor. In addition, the paucity of pCaMKII expression in passively fed adults suggests that the permissive default setting is “off” in adults.

  13. Reciprocal preening and food sharing in colour-polymorphic nestling barn owls.

    Science.gov (United States)

    Roulin, A; Des Monstiers, B; Ifrid, E; Da Silva, A; Genzoni, E; Dreiss, A N

    2016-02-01

    Barn owl (Tyto alba) siblings preen and offer food items to one another, behaviours that can be considered prosocial because they benefit a conspecific by relieving distress or need. In experimental broods, we analysed whether such behaviours were reciprocated, preferentially exchanged between specific phenotypes, performed to avoid harassment and food theft or signals of hierarchy status. Three of the results are consistent with the hypothesis of direct reciprocity. First, food sharing was reciprocated in three-chick broods but not in pairs of siblings, that is when nestlings could choose a partner with whom to develop a reciprocating interaction. Second, a nestling was more likely to give a prey item to its sibling if the latter individual had preened the former. Third, siblings matched their investment in preening each other. Manipulation of age hierarchy showed that food stealing was directed towards older siblings but was not performed to compensate for a low level of cooperation received. Social behaviours were related to melanin-based coloration, suggesting that animals may signal their propensity to interact socially. The most prosocial phenotype (darker reddish) was also the phenotype that stole more food, and the effect of coloration on prosocial behaviour depended upon rank and sex, suggesting that colour-related prosociality is state dependent. PMID:26563617

  14. A GPU accelerated Barnes-Hut tree code for FLASH4

    Science.gov (United States)

    Lukat, Gunther; Banerjee, Robi

    2016-05-01

    We present a GPU accelerated CUDA-C implementation of the Barnes Hut (BH) tree code for calculating the gravitational potential on octree adaptive meshes. The tree code algorithm is implemented within the FLASH4 adaptive mesh refinement (AMR) code framework and therefore fully MPI parallel. We describe the algorithm and present test results that demonstrate its accuracy and performance in comparison to the algorithms available in the current FLASH4 version. We use a MacLaurin spheroid to test the accuracy of our new implementation and use spherical, collapsing cloud cores with effective AMR to carry out performance tests also in comparison with previous gravity solvers. Depending on the setup and the GPU/CPU ratio, we find a speedup for the gravity unit of at least a factor of 3 and up to 60 in comparison to the gravity solvers implemented in the FLASH4 code. We find an overall speedup factor for full simulations of at least factor 1.6 up to a factor of 10.

  15. A GPU accelerated Barnes-Hut Tree Code for FLASH4

    CERN Document Server

    Lukat, Gunther

    2016-01-01

    We present a GPU accelerated CUDA-C implementation of the Barnes Hut (BH) tree code for calculating the gravita- tional potential on octree adaptive meshes. The tree code algorithm is implemented within the FLASH4 adaptive mesh refinement (AMR) code framework and therefore fully MPI parallel. We describe the algorithm and present test results that demonstrate its accuracy and performance in comparison to the algorithms available in the current FLASH4 version. We use a MacLaurin spheroid to test the accuracy of our new implementation and use spherical, collapsing cloud cores with effective AMR to carry out performance tests also in comparison with previous gravity solvers. Depending on the setup and the GPU/CPU ratio, we find a speedup for the gravity unit of at least a factor of 3 and up to 60 in comparison to the gravity solvers implemented in the FLASH4 code. We find an overall speedup factor for full simulations of at least factor 1.6 up to a factor of 10

  16. “And all the windows, great and small”. Finestre in Nightwood di Djuna Barnes

    Directory of Open Access Journals (Sweden)

    Francesca Chiappini

    2015-01-01

    Full Text Available As a recurring subject and powerful symbol, the window dominates the female literary and artistic imagery of the twentieth century. It has been developed into mirror, photograph or painting, according to the writer’s needs, yet the basic shape of the frame is always retraceable. Among late modernist and postmodernist women writers, Djuna Barnes explores in detail the structural resources of this literary device. Although she already understands the potential of the frame in her early career as a journalist, she mostly challenges its extents of versatility in Nightwood (1936. Its crucial moments – either flashing epiphanies or missed catharsis – involve the physical presence of a window, which embodies a powerful narrative agent; more than mere symbol, it is active at several levels. Thematically, doors and windows, pictures and mirrors, play an important cohesive role. At a deeper stage of analysis, the structure of the novel itself is shored up by doors and windows, since the setting is essentially organized into indoors and outdoors scenes; windows and doors allow the characters to move between these two dimensions. On the metaphorical level, windows and doors represent a communicative channel; a room-door opening suggests the access to one’s inner life, whereas a shut window denies any chance of dialogue. However, all the characters seem to be too absorbed by their obsessions to realize such communicative potential, and rather meander uselessly in their mental frames.

  17. Klatring i trær og hyttebygging: - om barns lek og lekesteder ute

    Directory of Open Access Journals (Sweden)

    Merete Lund Fasting

    2015-07-01

    Full Text Available Abstract: This article describes 10 year old children`s play in nature during school hours. However, my result does equally reflect on children in kindergarden as well. Observation and conversation was used as methods as well as pictures. The children’s play in the trees and building huts was conducted in groups, and their communication was nonverbal with each other and with the nature. However; the girls reveal that they enjoy their conversations while being in the tree. The children often play at the same place over and over. This is significant to the evolution of the play and the children’s communication with their places in nature.Sammendrag: Denne artikkelen omhandler 10 år gamle barns lek på natursteder i skoletida. Selv om studien omhandler 10 åringer så kan kunnskapen den frembringer også være viktig for å forstå barnehagebarns lek og tilknytning til sine lekesteder i barnehagen. Metodene som ble brukt for å undersøke barnas lek var observasjoner og samtaler med barna, i tillegg til fotografier. Barnas lek i trærne og i hyttebyggingen karakteriseres ved at de er flere sammen, og barna har en kroppslig dialog med hverandre og omgivelsene i leken. Barna snakker i liten grad sammen om leken og hvordan de skal leke; deres kommunikasjon er hovedsakelig nonverbal. Men når jentene sitter i treet forteller de meg at de liker å sitte og snakke. Barna leker på steder hvor de har vært mye før, og dette har en betydning for barnas lek og barnas kommunikasjon med deres steder.

  18. Sexual dimorphism in melanin pigmentation, feather coloration and its heritability in the barn swallow (Hirundo rustica.

    Directory of Open Access Journals (Sweden)

    Nicola Saino

    Full Text Available Melanin is the main pigment in animal coloration and considerable variation in the concentrations of the two melanin forms (pheo- and eumlanin in pigmented tissues exists among populations and individuals. Melanin-based coloration is receiving increasing attention particularly in socio-sexual communication contexts because the melanocortin system has been hypothesized to provide a mechanistic basis for covariation between coloration and fitness traits. However, with few notable exceptions, little detailed information is available on inter-individual and inter-population variation in melanin pigmentation and on its environmental, genetic and ontogenetic components. Here, we investigate melanin-based coloration in an Italian population of a passerine bird, the barn swallow (Hirundo rustica rustica, its sex- and age-related variation, and heritability. The concentrations of eu- and pheomelanin in the throat (brown and belly (white-to-brownish feathers differed between sexes but not according to age. The relative concentration of either melanin (Pheo:Eu differed between sexes in throat but not in belly feathers, and the concentrations in males compared to females were larger in belly than in throat feathers. There were weak correlations between the concentrations of melanins within as well as among plumage regions. Coloration of belly feathers was predicted by the concentration of both melanins whereas coloration of throat feathers was only predicted by pheomelanin in females. In addition, Pheo:Eu predicted coloration of throat feathers in females and that of belly feathers in males. Finally, we found high heritability of color of throat feathers. Melanization was found to differ from that recorded in Hirundo rustica rustica from Scotland or from H. r. erythrogaster from North America. Hence, present results show that pigmentation strategies vary in a complex manner according to sex and plumage region, and also among geographical populations

  19. Barn owl feathers as biomonitors of mercury: sources of variation in sampling procedures.

    Science.gov (United States)

    Roque, Inês; Lourenço, Rui; Marques, Ana; Coelho, João Pedro; Coelho, Cláudia; Pereira, Eduarda; Rabaça, João E; Roulin, Alexandre

    2016-04-01

    Given their central role in mercury (Hg) excretion and suitability as reservoirs, bird feathers are useful Hg biomonitors. Nevertheless, the interpretation of Hg concentrations is still questioned as a result of a poor knowledge of feather physiology and mechanisms affecting Hg deposition. Given the constraints of feather availability to ecotoxicological studies, we tested the effect of intra-individual differences in Hg concentrations according to feather type (body vs. flight feathers), position in the wing and size (mass and length) in order to understand how these factors could affect Hg estimates. We measured Hg concentration of 154 feathers from 28 un-moulted barn owls (Tyto alba), collected dead on roadsides. Median Hg concentration was 0.45 (0.076-4.5) mg kg(-1) in body feathers, 0.44 (0.040-4.9) mg kg(-1) in primary and 0.60 (0.042-4.7) mg kg(-1) in secondary feathers, and we found a poor effect of feather type on intra-individual Hg levels. We also found a negative effect of wing feather mass on Hg concentration but not of feather length and of its position in the wing. We hypothesize that differences in feather growth rate may be the main driver of between-feather differences in Hg concentrations, which can have implications in the interpretation of Hg concentrations in feathers. Finally, we recommend that, whenever possible, several feathers from the same individual should be analysed. The five innermost primaries have lowest mean deviations to both between-feather and intra-individual mean Hg concentration and thus should be selected under restrictive sampling scenarios. PMID:26718850

  20. A trade-off between reproduction and feather growth in the barn swallow (Hirundo rustica.

    Directory of Open Access Journals (Sweden)

    Nicola Saino

    Full Text Available Physiological trade-offs mediated by limiting energy, resources or time constrain the simultaneous expression of major functions and can lead to the evolution of temporal separation between demanding activities. In birds, plumage renewal is a demanding activity, which accomplishes fundamental functions, such as allowing thermal insulation, aerodynamics and socio-sexual signaling. Feather renewal is a very expensive and disabling process, and molt is often partitioned from breeding and migration. However, trade-offs between feather renewal and breeding have been only sparsely studied. In barn swallows (Hirundo rustica breeding in Italy and undergoing molt during wintering in sub-Saharan Africa, we studied this trade-off by removing a tail feather from a large sample of individuals and analyzing growth bar width, reflecting feather growth rate, and length of the growing replacement feather in relation to the stage in the breeding cycle at removal and clutch size. Growth bar width of females and length of the growing replacement feather of both sexes were smaller when the original feather had been removed after clutch initiation. Importantly, in females both growth bar width and replacement feather length were negatively predicted by clutch size, and more strongly so for large clutches and when feather removal occurred immediately after clutch completion. Hence, we found strong, coherent evidence for a trade-off between reproduction, and laying effort in particular, and the ability to generate new feathers. These results support the hypothesis that the derived condition of molting during wintering in long-distance migrants is maintained by the costs of overlapping breeding and molt.

  1. Effect of summer grazing on welfare of dairy cows reared in mountain tie-stall barns

    Directory of Open Access Journals (Sweden)

    Simonetta Dovier

    2010-09-01

    Full Text Available Traditional mountain farms have an important economic, social and environmental role. The Alps management system for dairy cows consists of animals kept indoors from autumn to spring, mostly in tie-stalls, and moved to mountain pasture in summer. The aim of our study was to assess the effect of mountain summer grazing on the welfare of dairy cows housed in tie-stall barns. Twenty-four farms were considered. In twelve of them, animals were reared in tie-stalls and moved to mountain pasture for three months in summer; they were visited three times: (i four weeks before grazing during the indoor period in the stall; (ii about three weeks after the start of grazing; and (iii in the stall, in autumn, at least three weeks after returning from grazing. The other twelve farms kept the animals in tie-stalls all year; they were visited once in autumn. Data were collected following a protocol that considers animal-based measures and structure information on the basis of Quality Welfare Consortium® indications. Data allowed the calculation of both the Animal Needs Index score (ANI 35L and an overall assessment of the cows’ welfare obtained from three general aspects: housing, animal’s physical condition, and animal’s behaviour. Summer grazing had a significant positive effect on injuries, lameness and animal’s rising duration but a negative effect on faeces consistency. Moreover, a reduction of tongue playing was observed. The ANI 35L and the overall assessment did not show significant differences linked to summer grazing, which tended to have a positive but temporary effect on animal behaviour.

  2. Cooling systems of the resting area in free stall dairy barn

    Science.gov (United States)

    Calegari, F.; Calamari, L.; Frazzi, E.

    2016-04-01

    A study during the summer season evaluated the effect of different cooling systems on behavioral and productive responses of Italian Friesian dairy cows kept in an experimental-free stall barn located in the Po Valley in Italy. The study involved 30 lactating dairy cows subdivided into two groups kept in two pens with external hard court paddock in each free stall. The same cooling system was applied in the feeding area in both pens. A different cooling system in the resting area was applied to the two pens: in the pen SW, the resting area was equipped with fans and misters; in the other, there was simple ventilation (SV). Breathing rate, rectal temperature, milk yield, and milk characteristics (fat, protein, and somatic cell count) were measured. Behavioral activities (standing and lying cows in the different areas, as well as the animals in the feed bunk) were recorded. Mild to moderate heat waves during the trial were observed. On average, the breathing rate was numerically greater in SV compared with SW cows (60.2 and 55.8 breath/min, respectively), and mean rectal temperature remained below 39 °C in both groups during the trial (on average 38.7 and 38.8 °C in SV and SW, respectively. During the hotter periods of the trial, the time spent lying indoor in the free stall was greater in SW (11.8 h/day) than SV (10.7 h/day). Conversely, the time spent standing indoor without feeding was greater in SV (4.3 h/day) than SW (3.8 h/day). Milk yield was slightly better maintained during hotter period in SW compared with SV and somatic cell count was also slightly greater in the former. In conclusion, the adoption of the cooling system by means of evaporative cooling also in the resting area reduces the alteration of time budget caused by heat stress.

  3. Clock gene variation is associated with breeding phenology and maybe under directional selection in the migratory barn swallow.

    Directory of Open Access Journals (Sweden)

    Manuela Caprioli

    Full Text Available BACKGROUND: In diverse taxa, photoperiodic responses that cause seasonal physiological and behavioural shifts are controlled by genes, including the vertebrate Clock orthologues, that encode for circadian oscillator mechanisms. While the genetic network behind circadian rhythms is well described, relatively few reports exist of the phenological consequences of and selection on Clock genes in the wild. Here, we investigated variation in breeding phenology in relation to Clock genetic diversity in a long-distance migratory bird, the barn swallow (Hirundo rustica. METHODOLOGY/PRINCIPAL FINDINGS: In a sample of 922 adult barn swallows from a single population breeding in Italy we found one very common (Q(7 and three rare (Q(5, Q(6, Q(8 length variants of a functionally significant polyglutamine repeat. Rare (2.9% Q(7/Q(8 heterozygous females, but not males, bred significantly later than common (91.5% Q(7/Q(7 females, consistent with the expectation that 'long' alleles cause late breeding, as observed in a resident population of another bird species. Because breeding date depends on arrival date from migration, present results suggest that the association between breeding date and Clock might be mediated by migration phenology. In addition, fecundity selection appears to be operating against Q(7/Q(8 because late migrating/breeding swallows have fewer clutches per season, and late breeding has additional negative selection effects via reduced offspring longevity. Genotype frequencies varied marginally non-significantly with age, as Q(7/Q(8 frequency showed a 4-fold reduction in old individuals. This result suggests negative viability selection against Q(7/Q(8, possibly mediated by costs of late breeding. CONCLUSIONS/SIGNIFICANCE: This is the first study of migratory birds showing an association between breeding phenology and Clock genotype and suggesting that negative selection occurs on a phenologically deviant genotype. Low polymorphism at Clock may

  4. Low degradable protein supply to increase nitrogen efficiency in lactating dairy cows and reduce environmental impacts at barn level.

    Science.gov (United States)

    Edouard, N; Hassouna, M; Robin, P; Faverdin, P

    2016-02-01

    Generally, effect of lowering dietary degradable nitrogen supplies--while maintaining metabolisable protein--on dairy cows' performance, nitrogen use efficiency and gas emissions (NH3, N2O, CH4) at barn level with tied animals. Two dietary N concentrations (CP: 12% DM for LowN; 18% DM for HighN) were offered to two groups of three lactating dairy cows in a split-plot design over four periods of 2 weeks. Diets were formulated to provide similar metabolisable protein supply, with degradable N either in deficit or in excess (PDIN of 84 and 114 g/kg DM for LowN and HighN, respectively). Cows ingested 0.8 kg DM/day less on the LowN diet, which was also 2.5% less digestible. Milk yield and composition were not significantly affected. N exported in milk was 5% lower (LowN: 129 g N/day; HighN: 136 g N/day; Pprotein yield was not significantly affected (LowN: 801 g/day; HighN: 823 g/day; P=0.10). Cows logically ingested less nitrogen on the LowN diet (LowN: 415 g N/day; HighN: 626 g N/day; Pdiet (LowN: 65 g N/day; HighN: 243 g N/day; Pdiet (LowN: 1.03 g/h per cow; HighN: 1.25 g/h per cow; Pprotein with suitable metabolisable protein amounts to cattle improved nitrogen use efficiency and lowered ammonia emissions at barn level. This strategy would, however, need to be validated for longer periods, other housing systems (free stall barns) and at farm level including all stages of manure management. PMID:26412234

  5. Final work plan : targeted groundwater sampling and monitoring well installation for potential site reclassification at Barnes, Kansas.

    Energy Technology Data Exchange (ETDEWEB)

    LaFreniere, L. M.

    2006-07-11

    This ''Work Plan'' outlines the scope of work for a targeted groundwater sampling investigation and monitoring well installation at Barnes, Kansas. This activity is being conducted at the request of the Kansas Department of Health and Environment (KDHE), in accordance with the intergovernmental agreement between the KDHE and the Commodity Credit Corporation (CCC), an agency of the U.S. Department of Agriculture (USDA). Data resulting from the proposed work will be used to determine the hydraulic gradient near the former CCC/USDA facility, delineate the downgradient carbon tetrachloride plume, and determine additional monitoring requirements at Barnes. The overall goal is to establish criteria for monitoring leading to potential site reclassification. The proposed work will be performed on behalf of the CCC/USDA by the Environmental Science Division of Argonne National Laboratory. Argonne is a nonprofit, multidisciplinary research center operated by the University of Chicago for the U.S. Department of Energy (DOE). The Farm Service Agency of the USDA has entered into an interagency agreement with DOE, under which Argonne provides technical assistance with environmental site characterization and remediation at former CCC/USDA grain storage facilities. Argonne issued a ''Master Work Plan'' (Argonne 2002) to provide general guidance for all investigations at former CCC/USDA facilities in Kansas. The ''Master Work Plan'', approved by the KDHE, contains the materials common to investigations at all locations in Kansas. This document must be consulted for the complete details of plans for this work associated with the former CCC/USDA facility at Barnes.

  6. Sexual Dimorphism and Population Differences in Structural Properties of Barn Swallow (Hirundo rustica Wing and Tail Feathers.

    Directory of Open Access Journals (Sweden)

    Péter L Pap

    Full Text Available Sexual selection and aerodynamic forces affecting structural properties of the flight feathers of birds are poorly understood. Here, we compared the structural features of the innermost primary wing feather (P1 and the sexually dimorphic outermost (Ta6 and monomorphic second outermost (Ta5 tail feathers of barn swallows (Hirundo rustica from a Romanian population to investigate how sexual selection and resistance to aerodynamic forces affect structural differences among these feathers. Furthermore, we compared structural properties of Ta6 of barn swallows from six European populations. Finally, we determined the relationship between feather growth bars width (GBW and the structural properties of tail feathers. The structure of P1 indicates strong resistance against aerodynamic forces, while the narrow rachis, low vane density and low bending stiffness of tail feathers suggest reduced resistance against airflow. The highly elongated Ta6 is characterized by structural modifications such as large rachis width and increased barbule density in relation to the less elongated Ta5, which can be explained by increased length and/or high aerodynamic forces acting at the leading tail edge. However, these changes in Ta6 structure do not allow for full compensation of elongation, as reflected by the reduced bending stiffness of Ta6. Ta6 elongation in males resulted in feathers with reduced resistance, as shown by the low barb density and reduced bending stiffness compared to females. The inconsistency in sexual dimorphism and in change in quality traits of Ta6 among six European populations shows that multiple factors may contribute to shaping population differences. In general, the difference in quality traits between tail feathers cannot be explained by the GBW of feathers. Our results show that the material and structural properties of wing and tail feathers of barn swallows change as a result of aerodynamic forces and sexual selection, although the

  7. Natural selection in a postglacial range expansion: the case of the colour cline in the European barn owl.

    Science.gov (United States)

    Antoniazza, Sylvain; Kanitz, Ricardo; Neuenschwander, Samuel; Burri, Reto; Gaigher, Arnaud; Roulin, Alexandre; Goudet, Jérôme

    2014-11-01

    Gradients of variation--or clines--have always intrigued biologists. Classically, they have been interpreted as the outcomes of antagonistic interactions between selection and gene flow. Alternatively, clines may also establish neutrally with isolation by distance (IBD) or secondary contact between previously isolated populations. The relative importance of natural selection and these two neutral processes in the establishment of clinal variation can be tested by comparing genetic differentiation at neutral genetic markers and at the studied trait. A third neutral process, surfing of a newly arisen mutation during the colonization of a new habitat, is more difficult to test. Here, we designed a spatially explicit approximate Bayesian computation (ABC) simulation framework to evaluate whether the strong cline in the genetically based reddish coloration observed in the European barn owl (Tyto alba) arose as a by-product of a range expansion or whether selection has to be invoked to explain this colour cline, for which we have previously ruled out the actions of IBD or secondary contact. Using ABC simulations and genetic data on 390 individuals from 20 locations genotyped at 22 microsatellites loci, we first determined how barn owls colonized Europe after the last glaciation. Using these results in new simulations on the evolution of the colour phenotype, and assuming various genetic architectures for the colour trait, we demonstrate that the observed colour cline cannot be due to the surfing of a neutral mutation. Taking advantage of spatially explicit ABC, which proved to be a powerful method to disentangle the respective roles of selection and drift in range expansions, we conclude that the formation of the colour cline observed in the barn owl must be due to natural selection. PMID:25294501

  8. Stödjande av barns sociala färdigheter och delaktighet i vardagen : Om möjligheter och utmaningar i arbetet på mottagningshem

    OpenAIRE

    Larinkoski, Miriam

    2014-01-01

    Syftet med detta examensarbete är att ge ökad kunskap om hur de professionella på ett mottagningshem kan stöda barns sociala färdigheter och delaktighet i vardagen. Detta examensarbete är ett beställningsarbete av ett mottagningshem i södra Finland. Frågeställningarna är: Hur kan professionella med hjälp av en miljöterapeutisk arbetsmetod på mottagningshem främja barns sociala färdigheter samt stöda barns delaktighet i var-dagen? Vilka är utmaningarna för de professionella i att förverkliga ...

  9. "Jag vill nog bara lära mig" : Barns upplevelser av och ambitioner med sitt musicerande inom och utom ramen för frivillig musikundervisning

    OpenAIRE

    Lidén, Ellinor

    2007-01-01

    Syftet med denna uppsats är att genom intervjusamtal och enkäter få ökad insikt i samt beskriva hur musicerande barn uttrycker sina upplevelser av och ambitioner med sitt musicerande, såväl inom som utom ramen för frivillig musikundervisning. Det empiriska materialet består av 95 enkätsvar samt information från intervjusamtal med nio barn. Samtliga barn var mellan åtta och tretton år. Studien vilar på en kulturteoretisk ram, vilken utgör fonden för studiens övriga teoretiska utgångspunkter. S...

  10. Förälder till barn/ungdom med ätstörning – upplevelser och erfarenheter : En litteraturstudie

    OpenAIRE

    Kramer, Helena

    2015-01-01

    SAMMANFATTNING Bakgrund: Vid behandling av ätstörningar hos barn och ungdomar konstateras att föräldrars delaktighet har en betydande roll. Sjuksköterskan kan möta föräldrar till barn och ungdomar med ätstörning inom olika vårdinstanser och vårdformer och för att kunna ge stöd och god omvårdnad med familjen i fokus, är det av intresse att belysa upplevelser och erfarenheter hos föräldrar, av att leva med och/eller vårda barn/ungdom med ätstörning. Syfte: Att beskriva föräldrars upplevelser o...

  11. Stimulera intresse för naturkunskap : En studie av hur förskollärare stimulerar barns intresse för naturkunskap

    OpenAIRE

    Jonsson, Linda

    2014-01-01

    Små barn visar tidigt intresse för naturkunskap och det är förskolans uppdrag att fånga upp och ta tillvara detta intresse. Examensarbetet syftar till att undersöka hur förskollärare arbetar för att stimulera barns intresse för naturkunskap. Studien baseras på sex kvalitativa intervjuer med förskollärare från tre olika förskolor i en medelstor svensk stad. Studien behandlar hur förskollärare ser på innebörden av ett utforskande arbetssätt samt hur de tar barns intresse för naturkunskap vidare...

  12. Lek och Skoj! : Ett motionsprogram för barn i 5-6 års ålder med övervikt

    OpenAIRE

    Erlund, Cecilia; Erlund, Alexandra; Johansson, Pamela; Lahti, Annika; Ljungberg, Caroline

    2014-01-01

    Examensarbetet är ett delprojekt inom projektet ”Det resilienta barnet”. Syftet med arbetet är att skapa ett motionsprogram för barn i 5-6 års ålder med övervikt oberoende av föräldrars engagemang. Frågeställningar som besvaras är ”Hur kan de professionella stärka motivation till motion hos barn med övervikt?” och ”Hur bygga upp ett motionsprogram?” Barn i dagens samhälle ägnar sig åt en allt mer passiv livsstil eftersom en stor del av fritiden går åt till stillasittande aktiviteter så s...

  13. Konduktiv pedagogik som fysioterapimetod för barn och unga med funktionsnedsättningar : En systematisk litteraturstudie

    OpenAIRE

    Norrvik, Jessica

    2013-01-01

    Konduktiv pedagogik (KP) är en holistiskt specialpedagogisk undervisningsmetod som främst riktar sig till barn och unga med funktionsnedsättningar. Genom metoden vill man utveckla barnets hela personlighet och på så vis uppnå en förbättrad funktionsförmåga. Träningen riktar sig därför till barnets fysiska, sociala, kognitiva och emotionella utveckling. Programmet leds av en så kallad conductor som kan sägas vara en sammanslagning av fysioterapeut, ergoterapeut, psykolog och lärare. Syftet...

  14. Interaktion mellan små barn med Cerebral Pares och deras vardagliga samtalspartners på förskolan

    OpenAIRE

    Brolin, Lina; Karlsson, Lina

    2014-01-01

    Det övergripande syftet med denna studie var att öka kunskapen om hur små barn med Cerebral Pares (CP) deltar, kommunicerar och interagerar med sina vardagliga samtalspartners på förskolan. I studien deltog två små pojkar (2;4 och 4;3 år) med grav CP (GMFCS 5) med lite/inget talat språk. De filmades på förskolan i olika vardagliga aktiviteter tillsammans med de andra barnen och personalen. Vid analysen studerades pojkarnas samlade kommunikativa resurser och återkommande mönster i samtalen på ...

  15. Sambandet mellan skärmtid och hälsa bland barn och unga - En systematisk litteraturgranskning

    OpenAIRE

    Isotalo, Katarina

    2013-01-01

    Den tidigare forskningen visar att media samt mediefostran är en ny utmaning för föräldrar, vårdnadshavare och andra aktiva aktörer i barn och ungas liv. Människans ständiga utveckling, styrs av inre värden och principer, som bildas genom möjligheter, regler och exempel som omgivningen erbjuder. (Parse 1997:23) Detta är en systematisk litteraturstudie där 12 stycken forskningar analyserats och samlats in från tre olika databaser. I analysen granskades kvaliteten på artiklarna. Studien är ett ...

  16. Kirkens diakonale arbeid i møte med barn som sørger etter tap av forelder

    OpenAIRE

    Jørgensen, Benedicte

    2012-01-01

    I denne oppgaven vil jeg sette fokus på et viktig og, etter min opplevelse, lite prioritert område innenfor kirken/diakonien. Diakonens rolle og menighetens diakonale ansvar og muligheter vil gå som en rød tråd gjennom hele oppgaven. Noen kan mene at det er unødvendig å skrive en masteroppgave om barn og sorg og hvordan kirken kan drive sorgarbeid, når det offentlige allerede har noen tilbud. Som tidligere referert kan det virke som om det offentliges tilbud ikke er tilstrekkel...

  17. EVALUATION OF PERCEIVED QUALITY OF THE WEBSITE OF AN ONLINE BOOKSTORE: AN EMPIRICAL APPLICATION OF THE BARNES AND VIDGEN MODEL

    Directory of Open Access Journals (Sweden)

    Ueliton da Costa Leonidio

    2011-05-01

    Full Text Available This paper’s objective is to evaluate the perceived quality of the Website of an online bookstore using the Barnes and Vidgen Model. Implemented over the Internet, this empirical research collected data on the perceived quality of the Website, used to sell products and online services. The questionnaire used to gather the data was answered by a convenience sample of 213 respondents. The importance of quality attributes and the dimension of perceived quality were investigated. The results indicate that the three dimensions named Reliability, Usability and Information were the most noticeable.

  18. Final report : results of the 2006-2007 investigation of potential contamination at the former CCC/USDA facility in Barnes, Kansas.

    Energy Technology Data Exchange (ETDEWEB)

    LaFreniere, L. M.; Environmental Science Division

    2008-08-28

    The 2006-2007 investigation of carbon tetrachloride and chloroform contamination at Barnes, Kansas, was conducted at the request of the Kansas Department of Health and Environment (KDHE). The Environmental Science Division of Argonne National Laboratory implemented the investigation on behalf of the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA). The overall goal of the investigation was to establish criteria for monitoring leading to potential site reclassification. The investigation objectives were to (1) determine the hydraulic gradient near the former CCC/USDA facility, (2) delineate the downgradient carbon tetrachloride plume, and (3) design and implement an expanded monitoring network at Barnes (Argonne 2006a).

  19. Study of heat-stress levels in naturally ventilated sheep barns during heat waves: development and assessment of regression models

    Science.gov (United States)

    Papanastasiou, D. K.; Bartzanas, T.; Panagakis, P.; Zhang, G.; Kittas, C.

    2016-03-01

    It is well documented that heat-stress burdens sheep welfare and productivity. Peak heat-stress levels are observed when high temperatures prevail, i.e. during heat waves; however, continuous measurements inside livestock buildings are not usually available for long periods so as to study the variation of summer heat-stress levels for several years, especially during extreme hot weather. Α methodology to develop a long time series of summer temperature and relative humidity inside naturally ventilated sheep barns is proposed. The accuracy and the transferability of the developed linear regression models were verified. Temperature Humidity Index (THI) was used to assess sheep's potential heat-stress. Τhe variation of THI inside a barn during heat wave and non-heat wave days was examined, and the results were comparatively assessed. The analysis showed that sheep were exposed to moderate, severe, and extreme severe heat-stress in 10, 21 and 66 % of hours, respectively, during heat wave days, while the corresponding values during non-heat wave days were 14, 33 and 43 %, respectively. The heat load on sheep was much higher during heat wave events than during non-heat wave periods. Additionally, based on the averaged diurnal variation of THI, it was concluded that extreme severe heat-stress conditions were prevailing between 1000 and 2400 hours local time during heat wave days. Cool off night periods were never and extremely rarely detected during heat wave and non-heat wave days, respectively.

  20. a Comparison of Laser Scanning and Structure from Motion as Applied to the Great Barn at Harmondsworth, UK

    Science.gov (United States)

    Andrews, D. P.; Bedford, J.; Bryan, P. G.

    2013-07-01

    The great barn at Harmondsworth near London Heathrow airport, United Kingdom (UK), was built in 1426-7 for the Bishop of Winchester. At 58 metres long and 11.4 metres wide, it is one of the largest ever known to have been built in the UK, and the largest intact medieval timber-framed barn in England. The barn is built almost entirely of oak, although the walls rest on a low masonry sill-wall. Internally the space is divided into a central "nave" with a lower aisle to each side, and is divided along its length into 12 bays. There are three doorways on the east side. For an entirely timber-framed barn, the fabric is exceptionally well preserved. Even the external weatherboarding may be partly original. Following years of neglect, however, there are a number of on-going structural and conservation problems, so in 2011 the barn was bought by English Heritage in order to allow these needs to be addressed. English Heritage is the government agency responsible for the historic sites and buildings in the care of the state of England and is also the UK government's lead advisor on the built heritage. As one of the first steps in the conservation process the English Heritage Geospatial Imaging and Imaging & Visualisation teams undertook a four-day campaign of survey data collection. This took the form of laser scanning of the interior and exterior of the barn plus the acquisition of photography of the exterior elevations to be used with structure from motion (SFM) software. A comparison of the results of these complimentary yet potentially competing technologies will be given, as well as an evaluation of when they can be successfully used together. This paper will describe the procedures and problems involved with collecting the survey data and its subsequent analysis. The laser scanning was undertaken using a FARO Focus 3D phase based instrument. Approximately 60 scans were acquired in order to provide as comprehensive as possible coverage given the site circumstances. A

  1. Muscular Arrangement and Muscle Attachment Sites in the Cervical Region of the American Barn Owl (Tyto furcata pratincola.

    Directory of Open Access Journals (Sweden)

    Mark L L M Boumans

    Full Text Available Owls have the largest head rotation capability amongst vertebrates. Anatomical knowledge of the cervical region is needed to understand the mechanics of these extreme head movements. While data on the morphology of the cervical vertebrae of the barn owl have been provided, this study is aimed to provide an extensive description of the muscle arrangement and the attachment sites of the muscles on the owl's head-neck region. The major cervical muscles were identified by gross dissection of cadavers of the American barn owl (Tyto furcata pratincola, and their origin, courses, and insertion were traced. In the head-neck region nine superficial larger cervical muscles of the craniocervical, dorsal and ventral subsystems were selected for analysis, and the muscle attachment sites were illustrated in digital models of the skull and cervical vertebrae of the same species as well as visualised in a two-dimensional sketch. In addition, fibre orientation and lengths of the muscles and the nature (fleshy or tendinous of the attachment sites were determined. Myological data from this study were combined with osteological data of the same species. This improved the anatomical description of the cervical region of this species. The myological description provided in this study is to our best knowledge the most detailed documentation of the cervical muscles in a strigiform species presented so far. Our results show useful information for researchers in the field of functional anatomy, biomechanical modelling and for evolutionary and comparative studies.

  2. Comparison of aviary, barn and conventional cage raising of chickens on laying performance and egg quality.

    Science.gov (United States)

    Ahammed, M; Chae, B J; Lohakare, J; Keohavong, B; Lee, M H; Lee, S J; Kim, D M; Lee, J Y; Ohh, S J

    2014-08-01

    This study intended to compare the productive performance of three different layer raising systems; conventional cage (CC), barn (BR) and aviary (AV). The AV is welfare bestowed housing that allows free locomotion for birds within the BR. The BR allows bird's free locomotion inside BR but without multilevel structures. Both pullets and cockerels were housed together in both AV and BR, but only pullets in CC. Seventeen weeks old Lohmann Brown Lite (n = 800) pullets were housed in AV during this study. The same age layer pullets were simultaneously assigned to either at CC or BR to compare egg production performance with AV. The duration of experiment was 40 weeks (from 21st to 60th week). There were no remarkable differences in egg production, hen day egg production (HDEP) and average egg weight among three rearing systems. First 20 weeks (phase-1) average HDEP (%) of AV, CC, and BR were 85.9, 88.8, 87.1 and average egg weights (g) were 57.5, 59.9, and 56.9 respectively. Those of the remaining 20 weeks (phase-2) were 87.1, 87.9, 85.5 and 64.2, 63.0 62.1, respectively. Daily feed intakes (122 g, 110 g, 125 g); feed conversion ratio (2.4, 2.1, 2.5) and daily egg mass (53.9 g, 54.4 g, 52.8 g) data from AV, CC, and BR were not influenced significantly by the respective raising systems. Daily feed intake of layers in both AV (124 g) and BR (127 g) tended to be higher than that in CC (113 g) during phase-2. Overall, exterior egg quality (dirty and cracked eggs) in both phases was superior in BR compared with AV and CC, whereas CC generated intermediate results. This study indicated that the HDEP per se in AV and BR were not significantly different from that in CC. The study implied that the facility depreciation cost for AV and cost for increased feed intake in AV compared to CC are believed to be critical to evaluate the cost effectiveness of egg production in AV. PMID:25083115

  3. Mouse lung inflammation after instillation of particulate matter collected from a working dairy barn

    International Nuclear Information System (INIS)

    Coarse and fine particulate matter (PM2.5-10 and PM2.5, respectively) are regulated ambient air pollutants thought to have major adverse health effects in exposed humans. The role of endotoxin and other bioaerosol components in the toxicity of PM from ambient air is controversial. This study evaluated the inflammatory lung response in mice instilled intratracheally with PM2.5-10 and PM2.5 emitted from a working dairy barn, a source presumed to have elevated concentrations of endotoxin. PM2.5-10 was more pro-inflammatory on an equal weight basis than was PM2.5; both fractions elicited a predominantly neutrophilic response. The inflammatory response was reversible, with a peak response to PM2.5-10 observed at 24 h after instillation, and a return to control values by 72 h after instillation. The major active pro-inflammatory component in whole PM2.5-10, but not in whole PM2.5, is heat-labile, consistent with it being endotoxin. A heat treatment protocol for the gradual inactivation of biological materials in the PM fractions over a measurable time course was developed and optimized in this study using pure lipopolysaccharide (LPS) as a model system. The time course of heat inactivation of pure LPS and of endotoxin activity in PM2.5-10 as measured by Limulus bioassay is identical. The active material in both PM2.5-10 and PM2.5 remained in the insoluble fraction when the whole PM samples were extracted with physiological saline solution. Histological analysis of lung sections from mice instilled with PM2.5-10 or PM2.5 showed evidence of inflammation consistent with the cellular responses observed in lung lavage fluid. The major pro-inflammatory components present in endotoxin-rich PM were found in the insoluble fraction of PM2.5-10; however, in contrast with PM2.5-10 isolated from ambient air in the Central Valley of California, the active components in the insoluble fraction were heat-labile.

  4. Cooling systems of the resting area in free stall dairy barn.

    Science.gov (United States)

    Calegari, F; Calamari, L; Frazzi, E

    2016-04-01

    A study during the summer season evaluated the effect of different cooling systems on behavioral and productive responses of Italian Friesian dairy cows kept in an experimental-free stall barn located in the Po Valley in Italy. The study involved 30 lactating dairy cows subdivided into two groups kept in two pens with external hard court paddock in each free stall. The same cooling system was applied in the feeding area in both pens. A different cooling system in the resting area was applied to the two pens: in the pen SW, the resting area was equipped with fans and misters; in the other, there was simple ventilation (SV). Breathing rate, rectal temperature, milk yield, and milk characteristics (fat, protein, and somatic cell count) were measured. Behavioral activities (standing and lying cows in the different areas, as well as the animals in the feed bunk) were recorded. Mild to moderate heat waves during the trial were observed. On average, the breathing rate was numerically greater in SV compared with SW cows (60.2 and 55.8 breath/min, respectively), and mean rectal temperature remained below 39 °C in both groups during the trial (on average 38.7 and 38.8 °C in SV and SW, respectively. During the hotter periods of the trial, the time spent lying indoor in the free stall was greater in SW (11.8 h/day) than SV (10.7 h/day). Conversely, the time spent standing indoor without feeding was greater in SV (4.3 h/day) than SW (3.8 h/day). Milk yield was slightly better maintained during hotter period in SW compared with SV and somatic cell count was also slightly greater in the former. In conclusion, the adoption of the cooling system by means of evaporative cooling also in the resting area reduces the alteration of time budget caused by heat stress. PMID:26335294

  5. Study of $ \\bar{p} $ and $ \\bar{n} $ annihilations at LEAR with OBELIX, a large acceptance and high resolution detector based on the Open Axial Field Spectrometer

    CERN Multimedia

    2002-01-01

    % PS201 Study of $\\bar{p}$ and $\\bar{n}$ annihilations at LEAR with OBELIX, a large acceptance and high resolution detector based on the Open Axial Field Spectrometer \\\\ \\\\OBELIX is designed to study exclusive final states of antiproton and antineutron annihilations at low energies with protons and nuclei. \\\\ \\\\The physics motivations of the experiment are:\\\\ \\\\\\begin{itemize} \\item (gg, ggg), hybrids ($ q \\bar{q} g $), multiquarks ($ q q \\bar{q} \\bar{q} $) and light mesons ($ q \\bar{q} $) produced in $ N \\bar{N} $ annihilations and study of their spectroscopy and decays. Also broad structures will be searched for by comparing identical decay modes in exclusive final states of the same type occuring from initial states with different angular momentum or isospin. \\item Study of the dynamics of $ N \\bar{N} $ interactions and of the dependence of the final and intermediate resonant states of annihilation upon the quantum numbers of the initial $ N \\bar{N} $ state (angular momentum: S and P-wave in $\\bar{p}p $ at...

  6. Tests of the Aversive Summation Hypothesis in Rats: Effects of Restraint Stress on Consummatory Successive Negative Contrast and Extinction in the Barnes Maze

    Science.gov (United States)

    Ortega, Leonardo A.; Prado-Rivera, Mayerli A.; Cardenas-Poveda, D. Carolina; McLinden, Kristina A.; Glueck, Amanda C.; Gutierrez, German; Lamprea, Marisol R.; Papini, Mauricio R.

    2013-01-01

    The present research explored the effects of restraint stress on two situations involving incentive downshift: consummatory successive negative contrast (cSNC) and extinction of escape behavior in the Barnes maze. First, Experiment 1 confirmed that the restraint stress procedure used in these experiments increased levels of circulating…

  7. A study of KK-bar system produced in the reaction Π-p#-> #KK-barn at 63 GeV

    International Nuclear Information System (INIS)

    An analysis of KK-bar system produced in the reaction Π-p#-> #KK-barn at 63 GeV and measured by ACCMOR (Amsterdam-CERN-Cracow-Munich-Oxford-Rutherford) collaboration at the CERN SPS accelelator is presented. (author)

  8. Sex-related effects of an immune challenge on growth and begging behavior of barn swallow nestlings.

    Directory of Open Access Journals (Sweden)

    Andrea Romano

    Full Text Available Parent-offspring conflicts lead the offspring to evolve reliable signals of individual quality, including parasite burden, which may allow parents to adaptively modulate investment in the progeny. Sex-related variation in offspring reproductive value, however, may entail differential investment in sons and daughters. Here, we experimentally manipulated offspring condition in the barn swallow (Hirundo rustica by subjecting nestlings to an immune challenge (injection with bacterial lipopolysaccharide, LPS that simulates a bacterial infection, and assessed the effects on growth, feather quality, expression of morphological (gape coloration and behavioral (posture begging displays involved in parent-offspring communication, as well as on food allocation by parents. Compared to sham-injected controls, LPS-treated chicks suffered a depression of body mass and a reduction of palate color saturation. In addition, LPS treatment resulted in lower feather quality, with an increase in the occurrence of fault bars on wing feathers. The color of beak flanges, feather growth and the intensity of postural begging were affected by LPS treatment only in females, suggesting that chicks of either sex are differently susceptible to the immune challenge. However, irrespective of the effects of LPS, parents equally allocated food among control and challenged offspring both under normal food provisioning and after a short period of food deprivation of the chicks. These results indicate that bacterial infection and the associated immune response entail different costs to offspring of either sex, but a decrease in nestling conditions does not affect parental care allocation, possibly because the barn swallow adopts a brood-survival strategy. Finally, we showed that physiological stress induced by pathogens impairs plumage quality, a previously neglected major negative impact of bacterial infection which could severely affect fitness, particularly among long

  9. The effect of production system (barn and free-range), slaughtering age and gender on carcass traits and meat quality of partridges (Alectoris chukar).

    Science.gov (United States)

    Yamak, U S; Sarica, M; Boz, M A; Ucar, A

    2016-04-01

    1. A total of 400 Alectoris chukar partridges were reared in either barn or free-range production systems and slaughtered at 14, 16 or 18 weeks of age in order to determine the effects of production system, age and gender on carcass traits (live weight, carcass weight, carcass yield, carcass part and edible inner organ percentages at slaughtering) and meat quality (L*, a* and b* meat colour and pH). 2. Production system had a significant effect on both slaughter traits and meat quality. 3. Partridges raised in barn conditions had higher live weights and carcass weights whereas meat quality was better in birds raised in the free-range system. PMID:26813778

  10. Phylogenetic systematics of Barn Owl (Tyto alba (Scopoli, 1769 complex inferred from mitochondrial rDNA (16S rRNA taxonomic implication

    Directory of Open Access Journals (Sweden)

    Mansour Aliabadian

    2012-09-01

    Full Text Available The Barn owl, Tyto alba (Scopoli, 1769, occurs worldwide and shows a considerable amount of morphological and geographical variations, leading to the recognition of many subspecies throughout the world. Yet, no comprehensive study has not been done on this species. Data from mitochondrial gene (16S Ribosomal RNA (16S with 569 bp length were analyzed for 41 individuals around the world. Maximum likelihood (ML, maximum parsimony (MP and Bayesian analysis showed two distinct clades including alba clad (old world and furcata clad (new world. The amount of genetic variation within each of these clades ranged from 0.5-1.7 but variation between clades was 3.7. This data may suggest that Barn owls of the Old World may be a separate species from those of the New World.

  11. Barns Uppfattningar om Stjärnorna och Solen : En undersökning med 4-5-åringar

    OpenAIRE

    Böröy, Marie

    2013-01-01

    Denna studie visar vad 4-5-åringar har för uppfattningar om stjärnorna och solen, vad de tror att stjärnorna och solen är för något och vad de har för tankar om fenomen kring dem. Genomförandet av studien bygger på kvalitativa intervjuer i samband med att barnen målar. Metoden har gjort det möjligt för barnen att uttrycka sina egna tankar. Resultatet visar att det finns många uppfattningar inom området hos barn 4-5 år. En del uppfattningar är realistiska, en del fiktiva. Ett barn förklarar at...

  12. "Låt barnens språk mogna" : - En kvalitativ undersökning om daghems arbetssätt med barns språk

    OpenAIRE

    Nyman, Petra; Byman, Maria

    2010-01-01

    Detta examensarbete undersöker barnträdgårdslärares arbetssätt angående barns språk. Syftet med arbetet är att ta reda på hur daghemspersonalen (barnträdgårdslärare) jobbar för att stöda och stimulera barns språkliga utveckling samt vilka arbetsmetoder används för detta ändamål. Syftet har även varit att ta reda på om kommunens läroplan för daghemmen angående språk och kommunikation används på det sätt som avsetts. Teorin som vi använt oss av behandlar språkstimulans, uppväxtmiljöns betydelse...

  13. Effects of hatching asynchrony on sibling negotiation, begging, jostling for position and within-brood food allocation in the barn owl Tyto alba

    OpenAIRE

    Roulin A.

    2004-01-01

    When siblings differ markedly in their need for food, they may benefit from signalling to each other their willingness to contest the next indivisible food item delivered by the parents. This sib-sib communication system, referred to as 'sibling negotiation', may allow them to adjust optimally to investment in begging. Using barn owl (Two alba) broods. I assessed the role of within-brood age hierarchy on sibling negotiation, and in turn on jostling for position where parents predictably deliv...

  14. SETTINGS IN THE NOVELS OF JULIAN BARNES (With Reference to Talking It Over, The Porcupine, England, England, Love, etc., Arthur & George)

    OpenAIRE

    Gajanan N. Katkar

    2013-01-01

    Julian Barnes was born in Leicester, England's East midland, on January 19, 1946 in the family of a teacher. His father, Albert taught French at st. Clement Danes from 1937 onwards till his retirement in 1971. His mother, Keye, also taught French. His elder brother, Jonathan is now a Professor of Philosophy in Geneva. He married Pat Kavanagh in 1979, and now lives with her in North London.

  15. Impact of in-barn manure separation on biological air quality in an experimental setup identical to that in swine buildings.

    Science.gov (United States)

    Lavoie, J; Godbout, S; Lemay, S P; Belzile, M

    2009-07-01

    In-barn manure separation systems are becoming popular due to various environmental pressures on the swine industry. According to the literature, separation of feces and urine directly underneath the slats should have a positive impact on barn air quality. Removal and rapid separation of the two phases (solid/liquid) would reduce the dust and bioaerosol emissions, which would significantly improve the air quality in pig-housing facilities. From an occupational health and safety perspective, the maximum endotoxin and total bacteria concentrations to ensure workers' safety should not exceed 450 endotoxin units per cubic meter of air (EU m(-3)) and 10(4) colony-forming units per cubic meter of air (CFU m(-3)), respectively. In the current study, the effect on air quality of six in-barn manure handling systems was measured. A flat scraper system and four separation systems installed under the slats (a conveyor belt system, a conveyor net system, and a V-shaped scraper operated at two operation frequencies) were evaluated and compared to a conventional pull-plug system (control). The experiment took place in twelve independent and identical rooms housing four grower-finisher pigs each, and air samples were collected and analyzed for total dust, endotoxins, bacteria, and mold counts. The results obtained from this experimental setup show that the separation of feces and urine under the slats would concentrate at least 80% of the phosphorus in the solid phase. The total bacteria and endotoxin concentrations are lower than those found in commercial hog barns but remain higher than the recommended levels. Only the total dust concentrations are approximately 10% of their regulated value. This separation has no impact on dust and bioaerosol concentrations compared to the control. PMID:19728546

  16. Divorce in the barn owl: securing a compatible or better mate entails the cost of re-pairing with a less ornamented female mate.

    OpenAIRE

    Dreiss A.N.; Roulin A.

    2014-01-01

    Two nonmutually exclusive hypotheses can explain why divorce is an adaptive strategy to improve reproductive success. Under the 'better option hypothesis', only one of the two partners initiates divorce to secure a higher-quality partner and increases reproductive success after divorce. Under the 'incompatibility hypothesis', partners are incompatible and hence they may both increase reproductive success after divorce. In a long-term study of the barn owl (Tyto alba), we address the question ...

  17. Increased rodenticide exposure rate and risk of toxicosis in barn owls (Tyto alba) from southwestern Canada and linkage with demographic but not genetic factors.

    Science.gov (United States)

    Huang, Andrew C; Elliott, John E; Hindmarch, Sofi; Lee, Sandi L; Maisonneuve, France; Bowes, Victoria; Cheng, Kimberly M; Martin, Kathy

    2016-08-01

    Among many anthropogenic drivers of population decline, continual rapid urbanization and industrialization pose major challenges for the survival of wildlife species. Barn owls (Tyto alba) in southwestern British Columbia (BC) face a multitude of threats ranging from habitat fragmentation to vehicle strikes. They are also at risk from secondary poisoning of second-generation anticoagulant rodenticides (SGARs), a suite of toxic compounds which at high doses results in a depletion of blood clotting factors leading to internal bleeding and death. Here, using long-term data (N = 119) for the hepatic residue levels of SGAR, we assessed the risk of toxicosis from SGAR for the BC barn owl population over the past two decades. We also investigated whether sensitivity to SGAR is associated with genetic factors, namely Single Nucleotide Polymorphisms (SNPs) found in the CYP2C45 gene of barn owls. We found that residue concentration for total SGAR was significantly higher in 2006-2013 (141 ng/g) relative to 1992-2003 (57 ng/g). The proportion of owls exposed to multiple SGAR types was also significantly higher in 2006-2013. Those measures accordingly translate directly into an increase in toxicosis risk level. We also detected demographic differences, where adult females showed on average lower concentration of total SGAR (64 ng/g) when compared to adult males (106 ng/g). Juveniles were overall more likely to show signs of toxicosis than adults (33.3 and 6.9 %, respectively), and those symptoms were positively predicted by SGAR concentrations. We found no evidence that SNPs in the CYP2C45 gene of barn owls were associated with intraspecific variation in SGAR sensitivity. We recommend several preventative measures be taken to minimize wildlife exposure to SGAR. PMID:27151403

  18. Behavioral responses to frequency specific head related transfer functions as filtered by the facial ruff in the Barn owl (Tyto alba)

    OpenAIRE

    Hausmann, Elena Laura

    2010-01-01

    The barn owl is, due to its numerous morphological and neuronal adaptations to sound localization, a long-established model animal for the auditory system. Besides extensive research on the topic within the last decades, it is still unclear how direction- and frequency-dependent physical cues (interaural time differences (ITDs), level differences (ILDs) and monaural spectra) contribute to sound localization especially in the elevational plane. A further open question is to what extent frequen...

  19. The automorphism group of the Z_2-orbifold of the Barnes-Wall lattice vertex operator algebra of central charge 32

    OpenAIRE

    Shimakura, Hiroki

    2013-01-01

    In this article, we prove that the full automorphism group of the Z_2-orbifold of the Barnes-Wall lattice vertex operator algebra of central charge 32 has the shape $2^{27}.E_6(2)$. In order to identify the group structure, we introduce a graph structure on the Griess algebra and show that it is a rank 3 graph associated to $E_6(2)$.

  20. Genetic divergence analysis of the Common Barn Owl Tyto alba (Scopoli, 1769) and the Short-eared Owl Asio flammeus (Pontoppidan, 1763) from southern Chile using COI sequence

    Science.gov (United States)

    Colihueque, Nelson; Gantz, Alberto; Rau, Jaime Ricardo; Parraguez, Margarita

    2015-01-01

    Abstract In this paper new mitochondrial COI sequences of Common Barn Owl Tyto alba (Scopoli, 1769) and Short-eared Owl Asio flammeus (Pontoppidan, 1763) from southern Chile are reported and compared with sequences from other parts of the World. The intraspecific genetic divergence (mean p-distance) was 4.6 to 5.5% for the Common Barn Owl in comparison with specimens from northern Europe and Australasia and 3.1% for the Short-eared Owl with respect to samples from north America, northern Europe and northern Asia. Phylogenetic analyses revealed three distinctive groups for the Common Barn Owl: (i) South America (Chile and Argentina) plus Central and North America, (ii) northern Europe and (iii) Australasia, and two distinctive groups for the Short-eared Owl: (i) South America (Chile and Argentina) and (ii) north America plus northern Europe and northern Asia. The level of genetic divergence observed in both species exceeds the upper limit of intraspecific comparisons reported previously for Strigiformes. Therefore, this suggests that further research is needed to assess the taxonomic status, particularly for the Chilean populations that, to date, have been identified as belonging to these species through traditional taxonomy. PMID:26668551

  1. Low variation in the polymorphic Clock gene poly-Q region despite population genetic structure across barn swallow (Hirundo rustica populations.

    Directory of Open Access Journals (Sweden)

    Roi Dor

    Full Text Available Recent studies of several species have reported a latitudinal cline in the circadian clock gene, Clock, which influences rhythms in both physiology and behavior. Latitudinal variation in this gene may hence reflect local adaptation to seasonal variation. In some bird populations, there is also an among-individual association between Clock poly-Q genotype and clutch initiation date and incubation period. We examined Clock poly-Q allele variation in the Barn Swallow (Hirundo rustica, a species with a cosmopolitan geographic distribution and considerable variation in life-history traits that may be influenced by the circadian clock. We genotyped Barn Swallows from five populations (from three subspecies and compared variation at the Clock locus to that at microsatellite loci and mitochondrial DNA (mtDNA. We found very low variation in the Clock poly-Q region, as >96% of individuals were homozygous, and the two other alleles at this locus were globally rare. Genetic differentiation based on the Clock poly-Q locus was not correlated with genetic differentiation based on either microsatellite loci or mtDNA sequences. Our results show that high diversity in Clock poly-Q is not general across avian species. The low Clock variation in the background of heterogeneity in microsatellite and mtDNA loci in Barn Swallows may be an outcome of stabilizing selection on the Clock locus.

  2. Low Variation in the Polymorphic Clock Gene Poly-Q Region Despite Population Genetic Structure across Barn Swallow (Hirundo rustica) Populations

    Science.gov (United States)

    Dor, Roi; Lovette, Irby J.; Safran, Rebecca J.; Billerman, Shawn M.; Huber, Gernot H.; Vortman, Yoni; Lotem, Arnon; McGowan, Andrew; Evans, Matthew R.; Cooper, Caren B.; Winkler, David W.

    2011-01-01

    Recent studies of several species have reported a latitudinal cline in the circadian clock gene, Clock, which influences rhythms in both physiology and behavior. Latitudinal variation in this gene may hence reflect local adaptation to seasonal variation. In some bird populations, there is also an among-individual association between Clock poly-Q genotype and clutch initiation date and incubation period. We examined Clock poly-Q allele variation in the Barn Swallow (Hirundo rustica), a species with a cosmopolitan geographic distribution and considerable variation in life-history traits that may be influenced by the circadian clock. We genotyped Barn Swallows from five populations (from three subspecies) and compared variation at the Clock locus to that at microsatellite loci and mitochondrial DNA (mtDNA). We found very low variation in the Clock poly-Q region, as >96% of individuals were homozygous, and the two other alleles at this locus were globally rare. Genetic differentiation based on the Clock poly-Q locus was not correlated with genetic differentiation based on either microsatellite loci or mtDNA sequences. Our results show that high diversity in Clock poly-Q is not general across avian species. The low Clock variation in the background of heterogeneity in microsatellite and mtDNA loci in Barn Swallows may be an outcome of stabilizing selection on the Clock locus. PMID:22216124

  3. Sex-related effects of reproduction on biomarkers of oxidative damage in free-living barn swallows (Hirundo rustica.

    Directory of Open Access Journals (Sweden)

    Diego Rubolini

    Full Text Available According to life-history theory, the allocation of limiting resources to one trait has negative consequences for other traits requiring the same resource, resulting in trade-offs among life-history traits, such as reproduction and survival. In vertebrates, oxidative stress is increasingly being considered among the physiological mechanisms forming the currency of life-history trade-offs. In this study of the barn swallow (Hirundo rustica, we focus on the oxidative costs of reproduction, especially egg laying, by investigating the effects of breeding stage (pre- vs. post-laying and progression of the season on three biomarkers of oxidative damage (OD to plasma proteins, namely the concentration of malondialdehyde (MDA-protein adducts and of protein thiol groups (PSH, and the protein carbonyl (PCO content. Moreover, we investigated whether males and females differed in plasma OD levels, because the inherent sex differences in reproductive roles and physiology may originate sex-specific patterns of OD during breeding. We found that MDA-protein adduct levels were higher in the pre-laying than in the post-laying phase, that males had lower levels of MDA-modified proteins than females, and that the decline of MDA-protein adduct concentration between the pre- and the post-laying phase was more marked for females than males. In addition, MDA-protein adduct levels declined with sampling date, but only during the pre-laying phase. On the other hand, plasma PCO levels increased from the pre- to the post-laying phase in both sexes, and females had higher levels of PCO than males. PSH concentration was unaffected by breeding stage, sex or sampling date. On the whole, our findings indicate that biomarkers of protein oxidation closely track the short-term variation in breeding stage of both male and female barn swallows. Moreover, the higher protein OD levels observed among females compared to males suggest that egg laying entails oxidative costs, which might

  4. 天然气水暖集中供热密集烤房设备的研究%Study on the bulk curing barn with central water heating by natural gas

    Institute of Scientific and Technical Information of China (English)

    任杰; 孙福山; 刘治清; 徐世峰; 许建设; 沈始权

    2013-01-01

      针对我国烟叶烘烤设备对煤炭依赖度高、环境污染重、烘烤用工量大的问题,利用液化天然气(LNG)为气源,集成LNG 气化技术、水暖集中供热技术,设计建造了天然气水暖集中供热密集烤房,并进行了烘烤试验。结果表明:天然气水暖集中供热密集烤房升温准,控温稳,能够满足烤烟密集烘烤对温湿度的要求。虽然较燃煤密集烤房能耗成本有所增加,但改善了烤后烟叶的外观质量,提高了上等烟比例,减少了烘烤用工和大气污染物排放量。%In order to resolve the problems of the bulk curing barn which depended on coal, contaminated environment and needed much labor, the bulk curing barn with central water heating by natural gas (gas fired bulk curing barn) utilizing liquefied natural gas as gas source was designed and built using liquefied natural gas gasification technique and central water heating supply technique. Effects of the bulk curing barn with central water heating by natural gas were investigated. The results indicated that heating-up of the gas fired bulk curing barn was very quick and sensitive to meet the temperature and humidity requirements of tobacco flue-curing. The gas fired bulk curing barn improved the surface quality of cured tobacco leaves and increased the proportion of classy cured tobacco leaves. Employment and emission amount of atmospheric pollutant of the gas fired bulk curing barn were less than that of the coal fired bulk curing barn, but the final cost of the gas fired bulk curing barn was more than that of the coal fired bulk curing barn.

  5. Continuous measurement of reticuloruminal pH values in dairy cows during the transition period from barn to pasture feeding using an indwelling wireless data transmitting unit.

    Science.gov (United States)

    Gasteiner, J; Horn, M; Steinwidder, A

    2015-04-01

    This study was performed to investigate the effect of the transition from barn feeding to pasture on the pattern of reticuloruminal pH values in 8 multiparous dairy cows. A indwelling wireless data transmitting system for pH measurement was given to 8 multiparous cows orally. Reticuloruminal pH values were measured every 600 s over a period of 42 days. After 7 days of barn feeding (period 1), all of the animals were pastured with increasing grazing times from 2 to 7 h/day over 7 days (period 2). From day 15 to day 21 (period 3), the cows spent 7 h/day on pasture. Beginning on day 22, the animals had 20 h/day access to pasture (day and night grazing). To study reticuloruminal adaptation to pasture feeding, the phase of day and night grazing was subdivided into another 3 weekly periods (periods 4-6). Despite a mild transition period from barn feeding to pasture, significant effects on reticuloruminal pH values were observed. During barn feeding, the mean reticuloruminal pH value for all of the cows was 6.44 ± 0.14, and the pH values decreased significantly (p period 2 and 3 to 6.24 ± 0.17 and 6.21 ± 0.19 respectively. During periods 4, 5 and 6, the reticuloruminal pH values increased again (pH 6.25 ± 0.22; pH 6.31 ± 0.17; pH 6.37 ± 0.16). Our results showed that the animals had significantly lowered reticuloruminal pH during the periods of feed transition from barn to pasture feeding. Despite these significant changes, the decrease was not harmful, as indicated by data of feed intake and milk production. PMID:25266568

  6. ONE YEAR STUDY OF LYING AND STANDING BEHAVIOUR OF DAIRY COWS IN A FRESTALL BARN IN ITALY

    Directory of Open Access Journals (Sweden)

    Giorgio Provolo

    2009-06-01

    Full Text Available Dairy farm buildings can have, as it is well known, a big influence on the microclimatic conditions in the cowshed. In order to examine the influence of environmental parameters on the conditions affecting animal welfare, an experimental programme was set up at a farm where anomalous behaviour of cows had been previously noted. The research was carried out in a freestall barn from June 2004 till June 2005. Part of the research involved a detailed monitoring of animal movements and a simultaneous measurement of temperature and humidity within the cowshed. The behaviour of cows has been obtained by the analysis of a recorded video and expressed through indices. A strict relationship between environmental parameters and animal movement has been confirmed by the results obtained. The proportion of animals resting in stalls during the daytime, not affected by milking or feeding, rised from 30% in hot periods to 75% in winter time. The highly significant (P<0.01 correlation obtained between environmental parameters and cow behaviour confirmed the strong influence of THI on total proportion of lying cows. However, the variation in cow behaviour when temperature values were inside the range considered optimal for cows, suggests the influence of other parameters, like direct radiation.

  7. Barnes-Evans relations for dwarfs with an application to the determination of distances to cataclysmic variables

    CERN Document Server

    Beuermann, K

    2006-01-01

    Barnes-Evans type relations provide an empirical relationship between the surface brightness of stars and their color. They are widely used for measuring the distances to stars of known radii, as the Roche-lobe filling secondaries in cataclysmic variables (CVs). The calibration of the surface brightness of field dwarfs of near-solar metalicity with spectral types A0 to L8 covers all secondary spectral types detectable in CVs and related objects and will aid in the measurement of their distances. The calibrations are based on the radii of field dwarfs measured by the Infrared Flux Method and by interferometry. Published photometry is used and homogenized to the Cousins Rc and Ic and the CIT JHK photometric systems. The narrow band surface brightness at 7500A is based on our own and published spectrophotometry. Care is taken to select the dwarfs for near-solar metalicity, appropriate to CVs, and to avoid errors caused by unrecognized binarity. Relations are provided for the surface brightness in V, Rc, Ic, J, H...

  8. Expression of Multiple Sexual Signals by Fathers and Sons in the East-Mediterranean Barn Swallow: Are Advertising Strategies Heritable?

    Science.gov (United States)

    Vortman, Yoni; Safran, Rebecca J.; Reiner Brodetzki, Tali; Dor, Roi; Lotem, Arnon

    2015-01-01

    The level of expression of sexually selected traits is generally determined by genes, environment and their interaction. In species that use multiple sexual signals which may be costly to produce, investing in the expression of one sexual signal may limit the expression of the other, favoring the evolution of a strategy for resource allocation among signals. As a result, even when the expression of sexual signals is condition dependent, the relative level of expression of each signal may be heritable. We tested this hypothesis in the East-Mediterranean barn swallow (Hirundo rustica transitiva), in which males have been shown to express two uncorrelated sexual signals: red-brown ventral coloration, and long tail streamers. We show that variation in both signals may partially be explained by age, as well as by paternal origin (genetic father-son regressions), but that the strongest similarity between fathers and sons is the relative allocation towards one trait or the other (relative expression index), rather than the expression of the traits themselves. These results suggest that the expression of one signal is not independent of the other, and that genetic strategies for resource allocation among sexual signals may be selected for during the evolution of multiple sexual signals. PMID:25679206

  9. Expression of multiple sexual signals by fathers and sons in the East-Mediterranean barn swallow: are advertising strategies heritable?

    Directory of Open Access Journals (Sweden)

    Yoni Vortman

    Full Text Available The level of expression of sexually selected traits is generally determined by genes, environment and their interaction. In species that use multiple sexual signals which may be costly to produce, investing in the expression of one sexual signal may limit the expression of the other, favoring the evolution of a strategy for resource allocation among signals. As a result, even when the expression of sexual signals is condition dependent, the relative level of expression of each signal may be heritable. We tested this hypothesis in the East-Mediterranean barn swallow (Hirundo rustica transitiva, in which males have been shown to express two uncorrelated sexual signals: red-brown ventral coloration, and long tail streamers. We show that variation in both signals may partially be explained by age, as well as by paternal origin (genetic father-son regressions, but that the strongest similarity between fathers and sons is the relative allocation towards one trait or the other (relative expression index, rather than the expression of the traits themselves. These results suggest that the expression of one signal is not independent of the other, and that genetic strategies for resource allocation among sexual signals may be selected for during the evolution of multiple sexual signals.

  10. Eco-geographical variation in the diet of the Barn Owl (Tyto alba in mountainous areas of France

    Directory of Open Access Journals (Sweden)

    Halliez Guillaume

    2015-12-01

    Full Text Available Because of the worldwide distribution of the Barn Owl (Tyto alba and the easily way to find its pellets, it is often used to diet studies. To investigate the eco-geographical impact of mountainous areas on its diet, we conducted studies in the Jura, Alpes, Central and Pyrénées mountains and we also did pellet analysis from 8 sites in the Jura mountains. Analysis of the tooth and skull content of pellets allowed us to draw up two types of change in the diet of Tyto alba in correlation with mountain elevation. The first one concerns the Jura, Alpes and Central mountains, where the diversity of the diet declines with the increase in elevation. The second one concerns the Pyrénées mountains, where there is no change in the diversity of the diet, perhaps because of the higher diversity of small mammals caused by mediterranean influence. Thus, it seems that elevation cau ses a decrease in diet diversity of Tyto alba in continental mountains (Jura, Alpes and Central mountains probably because of more homogeneous landscapes dedicated to grass production. However, in Mediterranean mountains (Pyrénées, a more diversified small mammal guild provides a constant level of diet diversity.

  11. Interaktionens betydelse för barns lärande - en studie av barns möte med slöjd i förskolan

    Directory of Open Access Journals (Sweden)

    Eva Ahlskog-Björkman

    2014-06-01

    Full Text Available Syftet med den här artikeln är att diskutera på vilket sätt interaktion och socialt samspel har betydelse för hur barn i förskolan kan engageras i en lärandeprocess. Den empiriska studien utgörs av en  videofilmad episod över en vävaktivitet i förskola. Genom att använda videografisk observation kan mänsklig aktivitet beskrivas och av den anledningen används  videografi som metodologisk ansats. I studien analyseras på vilket sätt interaktionen mellan de som är närvarande, oberoende av barnens ålder, kan bidra till att stimulera den lärande aktiviteten. Barnens slöjdaktivitet beaktas ur ett sociokulturellt lärandeperspektiv. Ett centralt tema inom detta perspektiv är kommunikation där språket och redskapen står för de medierande faktorerna. Barnens kontakt med redskapen och deras upplevelser och erfarande av slöjdaktiviteten diskuteras i relation till den närmaste utvecklingszonen. Ytterligare beaktas den videofilmade sekvensen ur ett socialt perspektiv där barnpedagogens agerande gentemot barnen lyfts fram och diskuteras. Analys och tolkning av datamaterialet strävar efter att synliggöra mänsklig interaktion och dess betydelse för att motivera och engagera barnen i deras slöjdaktivitet.  

  12. Förskolegruppens påverkan på barn i behov av särskilt stöd : En intervjustudie av förskollärares erfarenheter av att tillgodose barns behov i relation till barngruppens storlek

    OpenAIRE

    Jansson, Susanna; Yousif, Emilia

    2016-01-01

    Denna studie har haft som syfte att genom en kvalitativ metod undersöka vilka möjligheter förskollärare anser sig ha i att möta barn i behov av särskilt stöd i relation till barngruppens storlek. Studiens resultat utgår från semistrukturerade intervjuer med tio förskollärare. Resultatet visar att förskollärare upplever det negativt med stora barngrupper då det försvårar arbetet att tillgodose barn i behov av särskilt stöd. Nio av tio förskollärare menar att större barngrupper leder till att f...

  13. Empirical model of odor emission from deep-pit swine finishing barns to derive a standardized odor emission factor

    Science.gov (United States)

    Schauberger, Günther; Lim, Teng-Teeh; Ni, Ji-Qin; Bundy, Dwaine S.; Haymore, Barry L.; Diehl, Claude A.; Duggirala, Ravi K.; Heber, Albert J.

    2013-02-01

    Odor emission from swine housing is influenced by the herd characteristics and building environment. The following three specific factors were identified as inputs to a swine house odor emission model: indoor temperature, barn ventilation rate, and pig activity. Model input parameters were determined based on tests of four, identical, 1000-head, mechanically-ventilated swine finishing houses. Each building had two sidewall curtains, a curtain on the west end wall, five exhaust fans on the east end wall, four pit ventilation fans, and long-term manure storage beneath a fully slatted floor. Odor concentrations of 112 odor samples were determined using dynamic forced-choice olfactometry with four to six trained panelists. The emission model showed that the standard live mass specific odor emission factor was 48 OU s-1 per 500 kg live mass or animal unit (AU), and it corresponded to an indoor temperature of T0 = 20 °C, a ventilation rate of V0 = 200 m3 h-1 (55.6 × 10-3 m3 s-1) per pig (maximum capacity for summer time), and the daily mean animal activity. The rate of odor emission from a swine finishing house can be calculated based on these parameters coupled with the number of animals, the mean live mass, and the standard live mass specific odor emission factor. Using this process-based odor emission model, the odor emission estimation and therefore the input for odor dispersion models can be improved to obtain more reliable estimates of separation distance for siting future pig farms.

  14. Measured and modelled tritium concentrations in freshwater Barnes mussels (Elliptio complanata) exposed to an abrupt increase in ambient tritium levels

    International Nuclear Information System (INIS)

    To improve understanding of environmental tritium behaviour, the International Atomic Energy Agency (IAEA) included a Tritium and C-14 Working Group (WG) in its EMRAS (Environmental Modelling for Radiation Safety) program. One scenario considered by the WG involved the prediction of time-dependent tritium concentrations in freshwater mussels that were subjected to an abrupt increase in ambient tritium levels. The experimental data used in the scenario were obtained from a study in which freshwater Barnes mussels (Elliptio complanata) were transplanted from an area with background tritium concentrations to a small Canadian Shield lake that contains elevated tritium. The mussels were then sampled over 88 days, and concentrations of free-water tritium (HTO) and organically-bound tritium (OBT) were measured in the soft tissues to follow the build-up of tritium in the mussels over time. The HTO concentration in the mussels reached steady state with the concentration in lake water within one or two hours. Most models predicted a longer time (up to a few days) to equilibrium. All models under-predicted the OBT concentration in the mussels one hour after transplantation, but over-predicted the rate of OBT formation over the next 24 h. Subsequent dynamics were not well modelled, although all participants predicted OBT concentrations that were within a factor of three of the observation at the end of the study period. The concentration at the final time point was over-predicted by all but one of the models. The relatively low observed concentration at this time was likely due to the loss of OBT by mussels during reproduction.

  15. Individual vocal signatures in barn owl nestlings: does individual recognition have an adaptive role in sibling vocal competition?

    Science.gov (United States)

    Dreiss, A N; Ruppli, C A; Roulin, A

    2014-01-01

    To compete over limited parental resources, young animals communicate with their parents and siblings by producing honest vocal signals of need. Components of begging calls that are sensitive to food deprivation may honestly signal need, whereas other components may be associated with individual-specific attributes that do not change with time such as identity, sex, absolute age and hierarchy. In a sib-sib communication system where barn owl (Tyto alba) nestlings vocally negotiate priority access to food resources, we show that calls have individual signatures that are used by nestlings to recognize which siblings are motivated to compete, even if most vocalization features vary with hunger level. Nestlings were more identifiable when food-deprived than food-satiated, suggesting that vocal identity is emphasized when the benefit of winning a vocal contest is higher. In broods where siblings interact iteratively, we speculate that individual-specific signature permits siblings to verify that the most vocal individual in the absence of parents is the one that indeed perceived the food brought by parents. Individual recognition may also allow nestlings to associate identity with individual-specific characteristics such as position in the within-brood dominance hierarchy. Calls indeed revealed age hierarchy and to a lower extent sex and absolute age. Using a cross-fostering experimental design, we show that most acoustic features were related to the nest of origin (but not the nest of rearing), suggesting a genetic or an early developmental effect on the ontogeny of vocal signatures. To conclude, our study suggests that sibling competition has promoted the evolution of vocal behaviours that signal not only hunger level but also intrinsic individual characteristics such as identity, family, sex and age. PMID:24266879

  16. Vi har sett och hört den, men var då? : En enkätundersökning om barns och vuxnas relation till instrumentet trumpet

    OpenAIRE

    Aasen, Andreas

    2014-01-01

    Studiens syfte är att undersöka om barn och föräldrar känner till instrumentet trumpet och vilka föreställningar de har om detta instrument.   Mina frågeställningar är:   Vad vet 6-7 åringar och deras föräldrar om instrumentet trumpet? Vilka föreställningar har de om instrumentet trumpet?   För att ta reda på dessa frågor har jag genomförd en enkätstudie i Arvika med barn i första klass och deras föräldrar. 33 vuxna och 34 barn från sammanlagt tre skolor deltog i undersökningen.   Resultaten...

  17. "Interrupted" eller "Imaginal Exposure"? : EMDR og de Kreative Art -Terapiene i Traumebehandling av Barn og Ungdom. Er metodene så forskjellige?

    OpenAIRE

    2012-01-01

    Sammendrag Problemområde: Det er gjort begrenset forskning på bruken av de kreative art-terapiene, når det gjelder barn med PTSD (Goodman, Chapman & Gant (2009). Foreløpig finnes det kun en randomisert kontrollert studie (Chapman, Morabito, Ladkas, Schreiner & Knudson, 2001). Det er også mangel på eksperimentell forskning, når det gjelder nytten av slike metoder i forhold til voksne med samme diagnose. Beskrivelser av effekt av tilnærmingen overfor voksne er ofte hentet fra kliniske ra...

  18. Normal xeroradiographic and radiographic anatomy of the great horned owl (Bubo virginianus), with special reference to the barn owl (Tyto alba)

    International Nuclear Information System (INIS)

    The purpose of this study was to provide a reference for xeroradiographic and conventional radiographic anatomy of the great horned owl (Bubo virginianus) as a representative of the avian Order Strigiformes. The head, body, wing, and pelvic limb of three adult birds were radiographed using xeroradiographic and conventional radiographic techniques. Twelve xeroradiographs and their corresponding conventional radiographs were selected, and the xeroradiographs labeled to illustrate normal anatomy. Selected views of the barn owl (Tyto alba) were included to illustrate significant differences between this and other species of owls

  19. Kan det være noe i tillegg? : en kartleggingsundersøkelse av hyperaktivitet og konsentrasjonsvansker hos barn med stoffskiftesykdommen PKU

    OpenAIRE

    2007-01-01

    Denne studien er en kartleggingsundersøkelse for å se på sammenhengen mellom hyperaktivitet og konsentrasjonsvansker hos barn med Fenylketonuri (PKU), som er en medfødt arvelig stoffskiftesykdom. Sykdommen kalles heretter PKU. Tidligere studier og uttalelser fra foreldre og fagfolk har antydet en slik sammenheng. Jeg ønsket videre å se på betydningen av vanskene i elevenes skolehverdag. For å få økt kunnskap om sammenhengen ble følgende problemstilling valgt; ”I hvilken grad eksist...

  20. Finnes det lesere til avisen om 30 år? : en undersøkelse om barn og unges avislesing og deres refleksjoner over avisen som medium

    OpenAIRE

    2003-01-01

    Det vil fortsatt finnes avislesere om 30 år, men hva slags aviser avhenger av avisene selv, og om de tar dagens barn og unge på alvor. De fleste av de 24 skoleelevene, som i fire måneder gjennom spørreskjemaer, gruppediskusjoner og skriftlige oppgaver reflekterte over sin avislesing, ønsker å kunne lese avis også i framtiden, enten på papir eller på nett. De oppfatter papiraviser som mer seriøse enn nettaviser. De er opptatt av sladrestoff, men for dem betyr sladder også å bry seg om hva som ...

  1. Improvement of Drying Temperature Control Method in Tobacco-Flue-Cured Barn%烤烟烘烤房干温度控制方法的改进

    Institute of Scientific and Technical Information of China (English)

    李英俊; 金珖龙

    2011-01-01

    为了提高烤烟烘烤房的干温度精度和烤烟的烘烤质量,降低耗煤量,对往复推动式烟叶烘烤仪的干温度的控制方法进行了改进.通过利用模糊控制技术控制推煤电动机工作时间和停止工作时间,实现了根据烘烤工艺的要求对烤烟烘烤房的干温度进行实时监测的精确控制目标.%To improve the precision of drying temperature control of tobacco-flue-cured barn and the quality of flue-cured tobacco,and to reduce coal consumption for flue-cured tobacco,the drying temperature control method for the flue-cured tobacco apparatus with reciprocating transport function was improved.The working time and halting time of a coal-transport electric motor were controlled by fuzzy control technology,with the technology above the real-time of the accuracy control of the drying temperature of tobacco flue-cured barn was realized.

  2. A percepção de valor dos ativos entre o mundo real e o virtual: o caso Barnes and Noble

    Directory of Open Access Journals (Sweden)

    Dalton Schmitt Jr

    2002-01-01

    Full Text Available Uma das questões de grande debate no mercado de investimentos gira em torno da diferença entre a valorização e a volatilidade de ativos relacionados a empresas do mundo real e empresas do mundo virtual (nova economia. O maior fluxo as informações, a incerteza e a inexistência de um modelo de negócio vencedor na nova economia têm ampliado essa discussão ao longo dos anos. O presente artigo tem como objetivo analisar a valorização de ativos de empresas desses dois mundos (real e virtual de mesmo foco de negócio e voltadas ao mesmo mercado em relação aos seus principais índices financeiros e performance. Estar-se-ão analisando dois negócios com mesmo fim de mercado mas que, por estarem com posicionamentos diferentes, apresentam características diferenciadas no que se refere a valorização de mercado e performance financeira. Visando desenvolver tal objetivo, o artigo analisará as empresa Barnes & Noble, tradicional varejista do segmento de livros no mercado norte-americano, e a sua subsidiária Barnes & Noble.com.

  3. Effect of Lean Controlled Curing Barn on Tobacco Curing%精益控制烤房对烟叶烘烤的影响研究

    Institute of Scientific and Technical Information of China (English)

    黄国强; 陈道颖; 陈娟; 贾健; 谢扬军; 郭松

    2016-01-01

    为进一步提高烟叶的烘烤质量和烤房的自动化烘烤水平,通过安装自动变频控制仪、自动烟囱闸火门和助燃风机保护器来提高密集烤房精益控制程度,改善烘烤质量。结果表明:使用精益控制烤房烘烤烟叶能显著提高烤房对装烟内温湿度的控制精度和烤后烟叶的外观质量,烘烤的能耗成本降低了13.40%,每千克干烟的烘烤收益增加了27.11%;助燃风机保护器能够显著降低助燃风机停机状态下机壳表面的温度,并大大减少风机的损耗率。%In order to improve the curing quality of tobacco leaves and automatic curing level of curing barn, installed auto-matic frequency control instrument, automatic chimney gate door and combustion supporting wind machine protector to improve the degree of bulk curing barn lean control and improve the baking quality.The results showed that cured by lean controlled curing barn significantly improved the control precision of temperature and humidity inside the loading room, significantly improved the appearance quality of the flue-cured tobacco leaves, and the cost of energy consumption was reduced by 13.40%, and the earn-ings of per kg tobacco leaves after curing increased by 27.11%.Combustion fan protector significantly lowered the temperature of the surface casing when combustion fan stopped, and greatly reduced the attrition rate of the fan.

  4. Barns tankar och idéer om himlakropparnas rörelse : Vanliga astronomiska missförstånd

    OpenAIRE

    Johansson, Elin

    2014-01-01

    Sammanfattning De flesta barn fängslas och visar intresse för temat rymden och finner vanligtvis att det är ett mycket intressant ämne. Fokusgruppen har varit elever i årskurs 4-6 och efter några större bortfall var det slutligen elever ifrån 8 klasser som deltog, totalt 94 elever. Eleverna fick svara på en enkät där eleverna i både text och bild bland annat fick förklara hur de trodde att objekten i sol–jord–månsystemet samverkade och rörde sig i förhållande till varandra, vad de placerade i...

  5. Stress och välbefinnande hos föräldrar till barn i övre tonåren

    OpenAIRE

    Alm Sönnergren, Susanne

    2008-01-01

    I denna enkätstudie undersöktes stress och välbefinnande hos 224 slumpmässigt utvalda föräldrar i Stockholmsområdet, med hemmavarande barn i övre tonåren. Ryff Well-Being Scale plus en nykonstruerad föräldrastresskala användes; den sistnämnda visade sig ha god intern konsistens och i övrigt godtagbara psykometriska kvaliteter. Tonårsföräldrarna rapporterade något högre välbefinnande än en tidigare normgrupp. Grad av välbefinnande, specifikt dimensionerna självacceptans (self acceptance) och k...

  6. Småbarnsfamiljers kostvanor : En studie om kostkvalitet och föräldrars inverkan på barns ätvanor

    OpenAIRE

    Qvarnström, Eva

    2007-01-01

    Många människor har svårt att etablera goda matvanor trots ett ständigt informationsflöde om hur ohälsosam kost påverkar hälsan negativt. Små barn befinner sig i en beroendeställning till de vuxna som finns runt dem. Det innebär att föräldrarnas kostvanor även blir barnens. De vuxna bestämmer vad som finns hemma och vad som serveras. Denna kvantitativa studie har undersökt småbarnsfamiljers kostvanor med utgångspunkt i Livsmedelsverkets rekommendationer om mindre mättat fett, mindre socker, m...

  7. Föräldrarnas upplevelser av att vara förälder till ett barn med Anorexia Nervosa : En litteraturstudie

    OpenAIRE

    Karat, Azra; Modin, Jens

    2013-01-01

    Bakgrund: Anorexia Nervosa påverkar inte enbart det sjuka barnet utan kan även vara påfrestande för föräldrarna. Föräldrarna kan behöva göra stora förändringar för att det vardagliga livet skall fungera. Syfte: Syftet med studien var att beskriva föräldrarnas upplevelser av att vara förälder till ett barn med Anorexia Nervosa. Metod: Metoden som användes var en kvalitativ litteraturstudie som baserades på tre självbiografiska böcker. Graneheim och Lundmans beskrivning av innehållsanalys med m...

  8. Dialektal medvetenhet hos barn : En jämförande studie mellan åldrarna 5, 8 och 11 år

    OpenAIRE

    Beckman, Elsa; Domeij, Erica

    2014-01-01

    Dialektal medvetenhet är en förmåga som grundas i en metaspråklig förmåga, det vill säga att kunna resonera kring språk och hantera språkliga enheter. Exempel på detta är att med hjälp av prosodi kunna utläsa information i tal såsom känslor och dialekter. Det finns relativt lite forskning angående barns dialektala medvetenhet. Däremot finns mer forskning inom metaspråklig utveckling. En god metaspråklig förmåga hör samman med god generell språkutveckling och en metaspråklig kompetens innebär ...

  9. "Barn lär sig så mycket för dem är som små svampar" : Förskollärares uppfattningar om matematik i förskolan

    OpenAIRE

    Södergren, Anna-Carin

    2015-01-01

    Studiens övergripande syfte är att undersöka vika uppfattningar förskollärare har om barns möte med matematik i förskolan och hur det kommer till utryck i deras arbete samt undersöka hur förskolans läroplan Lpfö 98 reviderad 2010 finns med i deras arbete. Studien är gjord med utgångspunkt ur ett fenomenografiskt perspektiv och studien bygger på kvalitativa intervjuer från fem förskollärare från fem olika förskolor. Sammanfattningsvis visar resultatet på att förskollärare uppfattar att barn i ...

  10. Och vad är lustfyllt lärande? : En fenomenologiskt inspirerad studie om barn och elevers uppfattningar av lustfyllt lärande i förskola och skola.

    OpenAIRE

    Lilja, Lina; Thilén, Johanna

    2013-01-01

    I denna studie undersöktes förskolebarn och skolbarns uppfattningar av lustfyllt lärande. Fokus i tidigare forskning kring ämnet har främst legat på att utgå från lärares uppfattningar, men denna studie har riktat in sig på barns perspektiv av lustfyllt lärande. En fenomenologiskt inspirerad metod har tillämpats för att nå syftet, som är att utforska och beskriva det essentiella i barn och elevers uppfattningar av att känna motivation och lust till lärande. Vi ville också försöka förstå hur t...

  11. Vad påverkar föräldrars sätt att tillgodose barns behov av regelbundet umgänge? : En applikation på Theory of Planned Behaviour

    OpenAIRE

    Herbertsson, Carina

    2007-01-01

    Föreliggande undersökning var en attitydundersökning baserad på Theory of Planned Behaviour där attityd, subjektiv norm, upplevd kontroll samt intention anses kunna predicera beteende. Syftet med undersökningen är försöka ta reda på vilka faktorer som påverkar hur mycket tid man som förälder umgås med sina barn efter en separation eller skilsmässa eftersom många barn i den situationen förlorar kontakten med den ena föräldern. 36 försöksdeltagare besvarade ett frågeformulär bestående av 31 frå...

  12. "Kan vi köpa den bilen, mamma?" : En studie om hur föräldrar upplever att deras barn påverkas av tevereklam

    OpenAIRE

    Ulvenfalk, Daniel; Larsson, Anton

    2014-01-01

    I dagens konsumtionssamhälle bombarderas tevepubliken ständigt med reklamfilmer om olika produkter och tjänster. Trots ett konvergerande medielandskap med en uppsjö nya teknologiska innovationer har televisionen bevarat sin starka ställning i de svenska folkhemmen och är fortfarande det mest frekvent använda mediet bland barn.  Med gemensamt intresse för reklam och dess påverkan som utgångsläge förde Piagets teori om barnets kognitiva utveckling oss in på att närmare undersöka hur barn påverk...

  13. Comparison between barn owl pellet and fox scat analysis in small mammal survey / Analisi di borre di barbagianni e di feci di volpe: confronto tra due metodologie per il rilevamento di piccoli mammiferi

    OpenAIRE

    Paolo Agnelli; Anna De Marinis

    1993-01-01

    Abstract In the course of a small mammal survey 100 barn owl (Tyto alba Scop.) pellets and 50 fox (Vulpes vulpes L.) scats were collected at "Villa Demidoff Park" (Florence, Italy) during six weekly samp1ings in the spring. Scat and pellet analyses were compared in order to point out advantages and disadvantages of these techniques as a tool in small mammal surveys. Riassunto In uno studio s...

  14. Den komplexa väven Att organisera för barns övergångar till och från förskoleklass

    Directory of Open Access Journals (Sweden)

    Helena Ackesjö

    2015-09-01

    Full Text Available This study focuses on how children's transitions to and from preschool classes are organized in different schools. Principal’s arguments for this organization were sought via a web-based survey and analyzed using the frame factor theory in addition to theories of practical sense and the concept of continuity. The results show that children tend to make more transitions between social communities the younger they are. The distribution of the principal’s answers show that the majority of them, because of external conditions, split the preschool groups to new classes in the transition to preschool class. However, the same movements are not indicated in the transition to first grade. The results show how the work of organizing chidren’s transitions represent a complex web of external actual conditions as the number of children and the recruitment area of the school, the internal logics and ideas about what is best for children and best for continued learning as well as the school's own traditions of working with transitions. Föreliggande studie fokuserar på hur barns övergångar till och från förskoleklass organiseras på olika skolor. Via en webbaserad enkät söks skolledares argument för denna organisering. I analysen nyttjas ett ramfaktorteoretiskt tänkande som kompletteras med teorier om praktiskt förnuft samt kontinuitetsbegreppet. Resultaten visar att barn tenderar att göra fler övergångar mellan barngrupper och sociala gemenskaper ju yngre de är. Fördelningen av skolledarnas svar visar att majoriteten, på grund av yttre villkor, delar förskolegrupperna till nya klasser i övergången till förskoleklass. Däremot indikeras inte samma rörlighet i övergången till årskurs 1. Resultaten visar hur arbetet med att organisera övergångarna utgör en komplex väv av yttre faktiska villkor som barnantal och upptagningsområdets storlek, av inre logiker och föreställningar om vad som är det bästa för barnen och det b

  15. Improvements of sound localization abilities by the facial ruff of the barn owl (Tyto alba as demonstrated by virtual ruff removal.

    Directory of Open Access Journals (Sweden)

    Laura Hausmann

    Full Text Available BACKGROUND: When sound arrives at the eardrum it has already been filtered by the body, head, and outer ear. This process is mathematically described by the head-related transfer functions (HRTFs, which are characteristic for the spatial position of a sound source and for the individual ear. HRTFs in the barn owl (Tyto alba are also shaped by the facial ruff, a specialization that alters interaural time differences (ITD, interaural intensity differences (ILD, and the frequency spectrum of the incoming sound to improve sound localization. Here we created novel stimuli to simulate the removal of the barn owl's ruff in a virtual acoustic environment, thus creating a situation similar to passive listening in other animals, and used these stimuli in behavioral tests. METHODOLOGY/PRINCIPAL FINDINGS: HRTFs were recorded from an owl before and after removal of the ruff feathers. Normal and ruff-removed conditions were created by filtering broadband noise with the HRTFs. Under normal virtual conditions, no differences in azimuthal head-turning behavior between individualized and non-individualized HRTFs were observed. The owls were able to respond differently to stimuli from the back than to stimuli from the front having the same ITD. By contrast, such a discrimination was not possible after the virtual removal of the ruff. Elevational head-turn angles were (slightly smaller with non-individualized than with individualized HRTFs. The removal of the ruff resulted in a large decrease in elevational head-turning amplitudes. CONCLUSIONS/SIGNIFICANCE: The facial ruff a improves azimuthal sound localization by increasing the ITD range and b improves elevational sound localization in the frontal field by introducing a shift of iso-ILD lines out of the midsagittal plane, which causes ILDs to increase with increasing stimulus elevation. The changes at the behavioral level could be related to the changes in the binaural physical parameters that occurred after the

  16. [Importance of Shaw's Jird Meriones shawii within the trophic components of the Barn Owl Tyto alba in steppic areas of Algeria].

    Science.gov (United States)

    Sekour, Makhlouf; Souttou, Karim; Guerzou, Ahlem; Benbouzid, Noureddine; Guezoul, Omar; Ababsa, Labed; Denys, Christiane; Doumandji, Salaheddine

    2014-06-01

    The study of the diet of the Barn Owl in two steppic regions (M'Sila and Djelfa) located in the Algerian highlands is based on the analysis of the pellets of rejections collected in six stations. The analysis of 706 pellets resulting from the various stations made it possible to count 1380 individuals, represented by seven classes, 12 orders, 32 families, and 76 species of preys. The mammals are consumed with variable abundance rates between 59.1 % and 90.0 % whose predominance is assigned to the rodents (relative abundance: AR > 58 %). The latter constitute the most advantageous preys in biomass (61.4 ≤ B % ≤ 99.2). The most consumed prey is Meriones shawii, with variable rates between 31.9 % and 76.6 %. Generally, Tyto alba presents a diversified diet in the majority of the stations (0.69 ≤ E ≤ 0.76), except the station of Ain El-Hadjel (E = 0.35), with a low diversity and dominance of M. shawii (AR = 76.6 %). PMID:24961561

  17. Agricultural land use and human presence around breeding sites increase stress-hormone levels and decrease body mass in barn owl nestlings.

    Science.gov (United States)

    Almasi, Bettina; Béziers, Paul; Roulin, Alexandre; Jenni, Lukas

    2015-09-01

    Human activities can have a suite of positive and negative effects on animals and thus can affect various life history parameters. Human presence and agricultural practice can be perceived as stressors to which animals react with the secretion of glucocorticoids. The acute short-term secretion of glucocorticoids is considered beneficial and helps an animal to redirect energy and behaviour to cope with a critical situation. However, a long-term increase of glucocorticoids can impair e.g. growth and immune functions. We investigated how nestling barn owls (Tyto alba) are affected by the surrounding landscape and by human activities around their nest sites. We studied these effects on two response levels: (a) the physiological level of the hypothalamus-pituitary-adrenal axis, represented by baseline concentrations of corticosterone and the concentration attained by a standardized stressor; (b) fitness parameters: growth of the nestlings and breeding performance. Nestlings growing up in intensively cultivated areas showed increased baseline corticosterone levels late in the season and had an increased corticosterone release after a stressful event, while their body mass was decreased. Nestlings experiencing frequent anthropogenic disturbance had elevated baseline corticosterone levels, an increased corticosterone stress response and a lower body mass. Finally, breeding performance was better in structurally more diverse landscapes. In conclusion, anthropogenic disturbance affects offspring quality rather than quantity, whereas agricultural practices affect both life history traits. PMID:25903390

  18. Small mammals in the diet of barn owls, Tyto alba (Aves: Strigiformes along the mid-Araguaia river in central Brazil

    Directory of Open Access Journals (Sweden)

    Rita G. Rocha

    2011-12-01

    Full Text Available We collected and analyzed 286 Barn owl, Tyto alba (Scopoli, 1769, pellets from two nests in different environments along the mid-Araguaia River in central Brazil. Our analyses revealed that these owls feed mainly on small mammals, especially rodents. Owls from the riverbanks at Fazenda Santa Fé had a more diverse diet, preying mainly on rodents that typically inhabit riparian grasslands - Holochilus sciureus Wagner, 1842 - and forests - Hylaeamys megacephalus (Fischer, 1814 and Oecomys spp., which probably also occur in forest borders or clearings. On the other hand, owls from an agroecosystem at Fazenda Lago Verde preyed mostly on rodent species common in these agrarian fields, Calomys tocantinsi Bonvicino, Lima & Almeida, 2003. Additionally, we compared small mammal richness estimates based on the analysis of owl pellets with estimates from live-trapping in the same areas. Owl pellets revealed two rodent species undetected by live traps - Euryoryzomys sp. and Rattus rattus (Linnaeus, 1758 - and four rodent species were trapped, but not found in owl pellets - Oecomys roberti Thomas, 1904, Pseudoryzomys simplex (Winge, 1887, Rhipidomys ipukensis Rocha, B.M.A. Costa & L.P. Costa, 2011, and Makalata didelphoides (Desmarest, 1817. Traps yielded higher species richness, but these two methods complement each other for surveying small rodents.

  19. 密集烤房不同装烟方式比较研究%Comparison of Tobacco Leaf Loading Methods in Bulk Curing Barn

    Institute of Scientific and Technical Information of China (English)

    孙曙光; 周童; 顾会战; 彭毅; 汪健; 王鹏; 陈利平

    2012-01-01

    [目的]探索密集烤房的最佳装烟方式.[方法]以密集烤房挂杆方式为对照,比较研究了托架式烟夹、框架散叶、散叶插签装烟方式的配套设备成本、装烟量、用工量、烤后烟叶经济性状、能耗成本等状况.[结果]托架式烟夹、框架散叶、散叶插签装烟方式节能省工效果明显,3种装烟方式装烟量最大可提高71.43%,初烤烟经济性状均有所提高,符合现代烟草农业集约化和可持续发展要求.[结论]研究可为密集烤房不同装烟方式的优化提供参考依据.%[Objective] To explore the best tobacco leaf loading method. [Method] With hang poles as control group, bracket type smoke clamp, framework loose leaf and loose leaf cutting sign loading tobacco patterns were tested in bulk curing barn about corollary equipment cost, pack smoke volume, the employment quantity, roast tobacco leaf after economic characters, energy consumption cost. [Result] The results showed that bracket type smoke clamp, framework loose leaf and loose leaf cutting sign were much better than hang poles in energy and worker saving. Because largest amount of the three tobacco leaf loading method can be increased by 71. 43 % and initial flue-cured tobacco economic characters are improved so they accord with the modern tobacco agriculture. [Conclusion] The study provides reference basis for optimization of different tobacco loading method.

  20. Analysis of Odor-Causing VOCs and Semi-VOCs Associated with Particulate Matter in Swine Barns Using SPME-GC-MS-Olfactometry

    Science.gov (United States)

    Cai, Lingshuang; Koziel, Jacek A.; Lo, Yin-Cheung; Hoff, Steven J.

    2009-05-01

    Swine operations can affect air quality by emissions of odor, volatile organic compounds (VOCs) and other gases, and particulate matter (PM). Particulate matter has been proposed to be an important pathway for carrying odor. However, little is known about the odor-VOCs-PM interactions. In this research, continuous PM sampling was conducted simultaneously with three collocated TEOM analyzers inside a 1000-head swine finish barn located in central Iowa. Each TEOM (tapered element oscillating microbalance) was fitted with total suspended particulate (TSP), PM-10, PM-2.5 and PM-1 preseparators. Used filters were stored in 40 mL vials and transported to the laboratory. VOCs adsorbed/absorbed to dust were allowed to equilibrate with vial headspace. Solid-phase microextraction (SPME) Carboxen/polydimethylsiloxane(PDMS) 85 μm fibers were used to extract VOCs. Simultaneous chemical and olfactometry analyses of VOCs and odor associated with swine PM were completed using a gas chromatography-mass-olfactometry (GC-MS-O) system. Fifty VOCs categorized into nine chemical function groups were identified and confirmed with standards. Five of them are classified as hazardous air pollutants. VOCs were characterized with a wide range of molecular weight, boiling points, vapor pressures, water solubilities, odor detection thresholds, and atmospheric reactivities. All characteristic swine VOCs and odorants were present in PM and their abundance was proportional to PM size. However, the majority of VOCs and characteristic swine odorants were preferentially bound to smaller-size PM. The findings indicate that a significant fraction of swine odor can be carried by PM. Research of the effects of PM control on swine odor mitigation is warranted.

  1. Paenochrobactrum gallinarii gen. nov., sp. nov., isolated from air of a duck barn, and reclassification of Pseudochrobactrum glaciei as Paenochrobactrum glaciei comb. nov.

    Science.gov (United States)

    Kämpfer, Peter; Martin, Elena; Lodders, Nicole; Jäckel, Udo; Huber, Birgit E; Schumann, Peter; Langer, Stefan; Busse, Hans-Jürgen; Scholz, Holger

    2010-07-01

    A Gram-negative, rod-shaped, oxidase-positive, non-spore-forming, non-motile bacterium (Sa25(T)) was isolated from air of a duck barn. 16S rRNA gene and recA sequence analyses clearly placed the isolate in the vicinity of the Brucella-Ochrobactrum-Pseudochrobactrum group, with the closest relative being Pseudochrobactrum glaciei KMM 3858(T). This allocation was confirmed by analyses of the quinone system (ubiquinone Q-10), fatty acid data (major fatty acids C(18 : 1)omega7c and C(19 : 0) cyclo omega8c) and polar lipid profile (major components diphosphatidylglycerol, phosphatidylmonomethylethanolamine, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine and unknown aminolipid AL1; moderate amounts of three unknown polar lipids, L1-L3, an unknown aminolipid and an unknown aminophospholipid APL2). The polyamine pattern of Sa25(T) exhibited the major compound putrescine and moderate amounts of spermidine; a similar polyamine pattern with the major compound putrescine was also detected in Pseudochrobactrum glaciei KMM 3858(T). DNA-DNA hybridization of strain Sa25(T) with Pseudochrobactrum glaciei KMM 3858(T) and the type strains of the other Pseudochrobactrum species showed values ranging from 50.3 to 24.8 %, and physiological and biochemical data clearly differentiated this isolate from the described Pseudochrobactrum species. Since Sa25(T) and Pseudochrobactrum glaciei KMM 3858(T) form a distinct lineage in the 16S rRNA gene sequence-based phylogenetic tree, and this separate position is supported by unique characteristics of their polyamine patterns and polar lipid profiles, we propose the novel genus Paenochrobactrum gen. nov., with the type species Paenochrobactrum gallinarii sp. nov. (type strain Sa25(T) =CCUG 57736(T) =CCM 7656(T)) and the reclassification of Pseudochrobactrum glaciei as Paenochrobactrum glaciei comb. nov. (type strain Pi26(T) =KMM 3858(T) =NRIC 0733(T) =JCM 15115(T)). PMID:19684318

  2. Divorce in the barn owl: securing a compatible or better mate entails the cost of re-pairing with a less ornamented female mate.

    Science.gov (United States)

    Dreiss, A N; Roulin, A

    2014-06-01

    Two nonmutually exclusive hypotheses can explain why divorce is an adaptive strategy to improve reproductive success. Under the 'better option hypothesis', only one of the two partners initiates divorce to secure a higher-quality partner and increases reproductive success after divorce. Under the 'incompatibility hypothesis', partners are incompatible and hence they may both increase reproductive success after divorce. In a long-term study of the barn owl (Tyto alba), we address the question of whether one or the two partners derive fitness benefits by divorcing. Our results support the hypothesis that divorce is adaptive: after a poor reproductive season, at least one of the two divorcees increase breeding success up to the level of faithful pairs. By breeding more often together, faithful pairs improve coordination and thereby gain in their efficiency to produce successful fledglings. Males would divorce to obtain a compatible mate rather than a mate of higher quality: a heritable melanin-based signal of female quality did not predict divorce (indicating that female absolute quality may not be the cause of divorce), but the new mate of divorced males was less melanic than their previous mate. This suggests that, at least for males, a cost of divorce may be to secure a lower-quality but compatible mate. The better option hypothesis could not be formally rejected, as only one of the two divorcing partners commonly succeeded in obtaining a higher reproductive success after divorce. In conclusion, incompatible partners divorce to restore reproductive success, and by breeding more often together, faithful partners improve coordination. PMID:24773174

  3. 巴基斯坦旁遮普中部仓鸮食性的季节性变化%Seasonal variation in the diet of the barn owl Tyto alba stertens in central Punjab, Pakistan

    Institute of Scientific and Technical Information of China (English)

    Muhammad MAHMOOD-UL-HASSAN; Mirza Azhar BEG; Habib ALI

    2007-01-01

    在巴基斯坦对仓鸮食性的季节变化进行了研究.通过分析连续3年在6个地区搜集的2 360个仓鸮回吐食物团,发现其食物主要是小型哺乳动物(95.6%).其中,家鼩(Suncus murinus)有最高的比例,达65.6%(冬季最多78%,夏季最少27%).就生物量而言,小型哺乳动物占仓鸮食物总生物量的99%[动物学报 53(3):431-436,2007].%Seasonal and climatic changes influence the diet of the barn owl Tyto alba throughout its range. We conducted the first long-term study in Pakistan to understand seasonal changes in the diet of this raptor. Regurgitated pellets (n=2 360) were collected for three years from six districts of central Punjab. An analysis of these pellets revealed that the barn owl depended mainly on small mammals (95.6%) for its food. The house shrew Suncus murinus was the main food item (65.6%) in its diet. It was the most common prey item in winter (78%) and was consumed the least during summer (27%). This seasonal rise and fall in the frequency of shrews in the diet was related to an inverse pattern of rise and fall in the frequency of rodents, birds and bats. Small mammals contributed 99% of the biomass consumed by the barn owl[Acta Zoologica Sinica 53(3):431-436,2007].

  4. Vi äro musikanter, men vill färre och färre spela basfiol och flöjt? : En kvalitativ studie av barns val av instrument till den frivilliga musikundervisningen.

    OpenAIRE

    Hägg, Daniel

    2015-01-01

    Studien syftar till att få en djupare insikt i hur sociala och kulturella faktorer påverkar barn och ungdomar i deras val av instrument för studier på en kulturskola. I bakgrundskapitlet presenteras tidigare forskning och annan relevant litteratur inom studiens ämnesområde. Studiens teoretiska utgångspunkter utgörs av det sociokulturella perspektivet. Studiens metod utgörs av den kvalitativa intervjun. Sex nybörjare, tre flickor och tre pojkar i åldrarna 8-10 deltog i studien. I resultatet fr...

  5. „Að fæða barn fjarri upprunalandi.“ Veruháttur og upplifun spænskumælandi kvenna á Íslandi

    OpenAIRE

    Ragna Björk Guðbrandsdóttir 1983

    2013-01-01

    Að fæða barn er líffræðilegt ferli en það felur einnig í sér miklar félagslegar og persónulegar umbreytingar. Fæðingar og umgjörð þeirra sýna fram á eina af mörgum birtingarmyndum menningarlegs margbreytileika. Konur upplifa fæðingar á ólíkan máta, meðal annars út frá menningarlegum bakgrunni og félagslegri stöðu. Markmið rannsóknarinnar er að skoða og læra af reynslu og upplifun spænskumælandi kvenna sem hafa fætt barn/börn á Íslandi. Rannsóknin endurspeglar upplifun þessara kvenna og þau st...

  6. Perfomance of an evaporative cooling system of a finishing phase swine barn Desempenho de um sistema de resfriamento evaporativo em instalações para suínos em fase de terminação

    Directory of Open Access Journals (Sweden)

    Valmir Sartor

    2003-02-01

    Full Text Available The thermal environment inside of a finishing phase swine barn has great influence on the success of swine production. This environment can be characterized by the black globe temperature and humidity index (BGHI, that represents the air temperature, humidity, wind speed and radiation. Due to the small number of Brazilian reports on this specific subject, this experiment was performed to verify the effect of one kind of evaporative cooling system on the thermal comfort of the animal in a swine barn, during the 98/99 summer at Patos de Minas, MG, Brazil. Two constructions were used, divided in 36 barns, each one with 15 animals, 110 to 150 days old. Along a side of one barn, four cooling devices were installed, with a ventilation system connected to a sprayer, to form an evaporative cooling system (ECS. The other barn did not have any cooling system being a control unity (COS. The ECS provided an improvement of the environmental thermal conditions, reducing the index of black globe temperature and humidity inside the building, from 83.5 to 82.4, during the critical period of the day (2 p.m.. The ECS provided also an improvement of the food conversion, from 3.27 to 2.88, and a tendency of a substantial weight gain, from 0.97 to 1.02 kg per day.O ambiente térmico no interior das instalações para suínos em fase de terminação tem importância vital para o sucesso da atividade suinícula. Esse ambiente pode ser representado pelo índice de temperatura de globo e umidade (ITGU, que inclui a temperatura, a umidade relativa e a velocidade do ar, e a radiação. Baseado nisto foi desenvolvido um trabalho com o objetivo de avaliar o efeito de um sistema de resfriamento evaporativo no conforto térmico de instalações para suínos em fase de terminação. O experimento foi realizado no período de verão (98/99 no município de Patos de Minas, MG. Foram utilizadas duas instalações divididas em 36 baias. Em cada baia foram alojados 15 animais por um

  7. EL ESTRÉS AGUDO INTERFIERE CON LA EVOCACIÓN Y PROMUEVE LA EXTINCIÓN DE LA MEMORIA ESPACIAL EN EL LABERINTO DE BARNES High stress interfers with evocation and promotes extintion of spatial memory in the Barnes maze

    Directory of Open Access Journals (Sweden)

    JULIETA TRONCOSO

    Full Text Available Para evaluar los efectos del estrés agudo sobre la recuperación y la extinción de la memoria espacial, se utilizaron ratas entrenadas en el laberinto circular de Barnes. El entrenamiento consistió de 8 ensayos de adquisición (intervalo entre ensayos, IEE, de 5 min en donde los animales debían aprender a encontrar una caja meta ubicada en uno de los 18 agujeros del laberinto. Todos los animales adquirieron el aprendizaje espacial, ya que invirtieron menos tiempo en encontrar la caja meta y cometieron menos errores a medida que se sucedían los ensayos de entrenamiento. Veinticuatro horas después del entrenamiento se evaluó la retención y extinción del aprendizaje espacial mediante una prueba con caja meta (PCC seguida de siete pruebas sin caja (PSC, con un IEE de 5 min. Una hora y media antes de la sesión de evaluación de la memoria un grupo de animales fue sometido a estrés por restricción de movimientos durante una hora, permitiéndoles un período de recuperación de 30 min y otro grupo permaneció en su caja hogar sin manipulación (control. Los resultados indican que el estrés deteriora el proceso de evocación de la memoria espacial, ya que los animales estresados cometieron un mayor número de errores y demoraron más tiempo en encontrar la caja meta durante la PCC , respecto de los controles. Además, el estrés facilita el proceso de extinción, ya que, durante las PSCs los animales estresados no mostraron una persistencia en la exploración del agujero que, en el entrenamiento, conducía a la caja meta.To evaluate the effects of acute stress on evocation and extinction of a spatial memory task, we used rats trained in the Barnes circular maze. The training protocol consisted of eight acquisition trials (intertrial interval, ITI; 5 min where animals must learn to find an escape box placed under one of these eighteen holes of the maze. All animals learned the spatial memory task as indicated by diminished escape latency and

  8. På leit etter grunnlag for norske barnehagers matematikkdidaktiske arbeid med romforståelse. - Et systematisk søk på forskning om barns utvikling av romforståelse gjort i barnehagekonteksten 1995-2010

    Directory of Open Access Journals (Sweden)

    Line Rønning Føsker

    2015-07-01

    Full Text Available Abstract: A review of research on children’s development of spatial reasoning in  a preschool setting 1995-2010. This study reviews 16 journal articles, books and theses on spatial reasoning in early childhood mathematics education. The data was collected by way of systematical search in several major databases and relevant digital and non-digital journals. The article gives a brief presentation of the main findings and the different methods used and, if applicable, the authors’ focus on didactics in both method and analysis. When it comes  to children’s mathematical learning processes, a main focus for a majority of studies is children’s use of constructional play material. When it comes to preschool teachers’ work with spatial reasoning, most  studies focus on the teachers’ planned and spontaneous communication with the children. The article then goes on to discuss these findings in relation to the Norwegian Framework Plan for Kindergartens. It seems like future research on the teachers’ use of material, on their work with visualization and orientation, and on their general focus on spatial reasoning could gain curriculum practise. Sammendrag: Denne oversiktsartikkelen gir en presentasjon av 16 internasjonale forskningsarbeider som ser på barns romforståelse i en barnehagekontekst. Arbeidene består av 14 vitenskapelige artikler, en bok og en doktorgrad, og disse ble funnet gjennom systematiske søk i flere større databaser og relevante digitale og analoge tidsskrift. Artikkelen gir en kort presentasjon av de ulike arbeidenes metode, hovedfunn og didaktiske vinkling. Når det gjelder barns utvikling av romforståelse har en majoritet av studiene fokus på hvordan dette kan belyses ved å studere og stimulere barns konstruksjonslek. For de studiene som ser på pedagogens rolle i arbeid med romforståelse legges det mest vekt på kommunikasjon, både planlagt og spontan kommunikasjon. Oversiktsartikkelen drøfter deretter

  9. Comparison between barn owl pellet and fox scat analysis in small mammal survey / Analisi di borre di barbagianni e di feci di volpe: confronto tra due metodologie per il rilevamento di piccoli mammiferi

    Directory of Open Access Journals (Sweden)

    Paolo Agnelli

    1993-06-01

    Full Text Available Abstract In the course of a small mammal survey 100 barn owl (Tyto alba Scop. pellets and 50 fox (Vulpes vulpes L. scats were collected at "Villa Demidoff Park" (Florence, Italy during six weekly samp1ings in the spring. Scat and pellet analyses were compared in order to point out advantages and disadvantages of these techniques as a tool in small mammal surveys. Riassunto In uno studio sul popolamento di piccoli mammiferi nel "Parco di Villa Demidoff" (Firenze, Italia realizzato durante il periodo primaverile, sono state analizzate 100 borre di barbagianni (Tyto alba Scop. e 50 feci di volpe (Vulpes vulpes L., raccolte nel corso di sei campionamenti a frequenza settimanale. Queste due metodologie sono state messe a confronto evidenziandone applicabilità e funzionalità come strumento di indagine per il rilevamento di piccoli mammiferi.

  10. Självkänslan i fokus : Hälsofrämjande e-klubb för barn i åldern 8-9 år

    OpenAIRE

    Rebers, Lina; Andersson, Denise; Henriksson, Sarah; Grönlund, Jessica

    2016-01-01

    Arbetet ingår i projektet ”eklubb” som startat år 2016 och pågår fram till år 2017. Syftet med projektet är att skapa en hälsofrämjande virtuell klubb för olika åldersgrupper. Arbetets syfte är att stärka självkänslan hos barn i åldern 8 till 9 år. Målet är att skapa en struktur för en virtuell klubb som kommer att präglas av positivitet, och samtidigt ge barnet trygghet och möjlighet att identifiera sina egna resurser och styrkor. Arbetets frågeställning är: Hur kan man bygga upp ekl...

  11. "Får jag också vara bebis?" : Om pedagogers roll och syn på miljöns betydelse för barns lek i förskolan

    OpenAIRE

    Bellos, Natali; Arevalo, Pamela

    2009-01-01

    Syftet med studien är att synliggöra pedagogernas roll i leken, samt deras uppfattning om miljöns betydelse för leken. För att kunna få en förståelse för pedagogernas roll i barns lek och sin egen syn på miljöns betydelse för leken, genomfördes fyra semistrukturerade intervjuer med två pedagoger på två förskolor. De semistrukturerade intervjuerna innebär att vi hade en frågelista över det specifika temat som skulle beröras och en intervjuguide som kompletterades av följdfrågor (Bryman, 2007)....

  12. Visuo-spatial learning and memory deficits on the Barnes maze in the 16-month-old APPswe/PS1dE9 mouse model of Alzheimer's disease.

    Science.gov (United States)

    O'Leary, Timothy P; Brown, Richard E

    2009-07-19

    The APPswe/PS1dE9 mouse is a double transgenic model of Alzheimer's disease, which harbors mutant mouse/human amyloid precursor protein (Swedish K594N/M595L) and presenilin-1 genes (PS1-dE9). These mice develop beta-amyloid plaques and exhibit visuo-spatial learning and memory impairment in the Morris water maze (MWM) at 8-12 and 16-18 months of age. To extend these findings, we tested visuo-spatial learning and memory of male and female APPswe/PS1dE9 mice at 16 months of age on the Barnes maze. APPswe/PS1dE9 mice showed impaired acquisition learning using measures of latency, distance traveled, errors and hole deviation scores, and were less likely to use the spatial search strategy to locate the escape hole than wild-type mice. APPswe/PS1dE9 mice also showed a deficit in memory in probe tests on the Barnes maze relative to wild-type mice. Learning and memory deficits, however, were not found during reversal training and reversal probe tests. Sex differences were observed, as male APPswe/PS1dE9 mice had smaller reversal effects than male wild-type mice, but females of each genotype did not differ. Overall, these results replicate previous findings using the MWM, and indicate that APPswe/PS1dE9 mice have impaired visuo-spatial learning and memory at 16 months of age. PMID:19428625

  13. 云烟-12型4层与常规3层密集烤房的性能对比%Study of performance comparison between Yunyan-12 type bulk curing barn with four layer and conventional with three layer

    Institute of Scientific and Technical Information of China (English)

    宗家泉; 王涛; 徐鸿飞; 马力; 赵华武; 赵应虎

    2014-01-01

    The curing effects of Yunyan-12 type bulk curing barn with four layer and conventional bulk curing barn with threelayer were studied in twelve main tobacco growing areas which were Kunming, Yuxi, Qujing, Honghe, Chuxiong, Dali, Zhaotong, Baoshan, Wenshan, Lijiang, Pu’er, Lincang of Yunnan province. The results show that the capacity of Yunyan-12 type four layer bulk curing barn is 1.20~1.67 hm2 per barn, which increase 24.47%average. The differences of plane and vertical dry-bulb and wet-bulk temperature of two bulk curing barn are not significantly during curing. And the quality of flue-cured tobacco leaves is equal. Although the grade of flue-cured tobacco leaves reduce slightly, the price increase. The energy of Yunyan-12 type bulk curing barn with four layer consumption decrease significantly.%对云南省昆明、玉溪、曲靖、红河、楚雄、大理、昭通、保山、文山、丽江、普洱和临沧12个主产烟区的云烟-12型4层密集烤房与常规3层密集烤房的烤烟效果进行了对比研究.结果表明:云烟-12型4层密集烤房烤能为1.20~1.67 hm2/房,较常规3层密集烤房平均提高了24.47%;烘烤过程中2种烤房的平面和垂直干球和湿球温度差无明显差异;2种烤房的烤烟质量相当,但云烟-12型4层密集烤房的烤烟均价略高于常规3层密集烤房的烤烟;云烟-12型4层密集烤房的烘烤能耗较常规3层烤房明显降低.

  14. Är musikämnet i grundskolan för alla? : En studie i hur musikläraren i den kommunala grundskolan ser på och hanterar ämnet musik i relation till barn med koncentrationssvårigheter

    OpenAIRE

    Olsson, Hanna

    2013-01-01

    Syftet med denna studie är att få djupare kunskaper om hur musikläraren i den kommunala grunskolan ser på och hanterar ämnet musik i relation till barn med koncentrationssvårigheter. Då forskning inom området musik i kombination med barn med koncentrationssvårigheter är väldigt begränsad presenteras istället en del litteratur om koncentrationssvårigheter i sig samt musikens betydelse för människan. Dock presenteras en hel del forskning om musikens påverkan på människans utveckling vilket är r...

  15. A Close Reading of Ironic Tone in William Faulkner ’s “Barn Burning”%用文本细读法解析福克纳《烧马棚》的反讽语气

    Institute of Scientific and Technical Information of China (English)

    秦江丽

    2013-01-01

    William Faulkner is a great American writer, and in 1949 he was rewarded the Noble Prize in Literature. Although he received public acclaim chiefly for his longer works, such as The Sound and the Fury, and Light in August, Faulkner found himself again and again writing short stories. In Barn Burning, which appeared in 1938, he created the seed story of the whole Snopes trilogy that was to constitute his last great creative accomplishment. Tone in fiction is frequently a guide to an author’s attitudes towards the subject. “Close reading”, a critical method adopted by New Critics, will be used to analyze the tone in the short story “Barn Burning”. It is found out that the author adopts an ironic tone to show sympathy to the son Sarty Snopes.%威廉姆·福克纳是美国“南方文学”的代表人物,是1949年诺贝尔文学奖的获得者。《烧马棚》是福克纳的经典短篇小说。小说讲述了美国内战后南方白人农民阿伯纳一家的生活经历。父亲总是烧地主家的马棚,而让一家人处在颠沛流离的状态中。语气是作者对他所创作的人物等的态度。它可以通过小说中的各种因素如人物、意象、象征等的选择而体现出来。本文将采取新批评派“细读文本”的方法分析能体现作者语气的各种因素、探讨作者对小说中主人公的态度。笔者通过分析小说中儿子对父亲的感情、显著意象和火的象征发现作者在行文时采取了讽刺的语气对儿子表示出同情。

  16. Research Progress of the Energy Saving & Emission Reduction Technology of Flue-curing Barn%节能减排烤烟烤房技术研究进展

    Institute of Scientific and Technical Information of China (English)

    邓勇

    2012-01-01

    The paper systematically illustrated the latest development of the energy & saving flue - cured tobacco barn technology from intelligent control systems and technologies, waste heat sharing technology, the use of renewable energy technology and energy saving technology and materials, and noted that the research should be strengthened and promoted on the field of hot water heat source, sulfur -fixing system,,remote control systems and wireless transmission and control technology and waste heat sharing technologies, which would achieve the goal of energy saving, emission reduction, labor saving.%从智能控制系统和技术、余热共享技术、再生能源利用技术和节能减排技术及材料等方面系统阐述了节能减排烤烟烤房技术的最新进展,并指出应加强研究和推广热水热源、除硫固尘、远程控制系统和无线传输控制技术和余热共享技术,实现“节能、减排、省工、降本”.

  17. 牛舍冷风机-风管上置置换通风系统设计及降温效果%Design and cooling effect of cooling fan-duct displacement ventilation system with up-fixing diffusers in beef cattle barn

    Institute of Scientific and Technical Information of China (English)

    刘统帅; 刘继军; 王美芝; 靳薇; 陈昭辉; 杨食堂

    2014-01-01

    In order to search for an effective cooling system that is energy saving with low running cost in beef cattle barns, this study investigated the displacement ventilation with up-fixing diffusers system to reduce heat stress of grain-fed beef cattle using an evaporative cooling air conditioner combining fabric air dispersion with rational layout and opening design. Four wet curtain cooling fans with air volume at 12 000 m3/h and 1 kW of electric power were used as the cooling source. Along the wall, four fabric ducts were connected to one cooling fan paralleled to the longitudinal wall. The diameter of the duct was 0.8 m and the bottom of the duct was 2.1 m from the floor. The duct was designed with twenty rows of big holes with 4.0 mm of diameter and 10 degrees to the vertical direction, twenty rows of small holes with 2.0 mm of diameter and 10mm from the big hole respectively. Both small and big holes directed the cooling air to the cattle bodies. As a result of the designing, the wind velocity gradient was developed at the same distance from the openings, which could avoid large jet entraining and thereby facilitated the displacement ventilation. The design of this experiment was validated with numerical simulation based on computational fluid dynamics (CFD), and the time of running and stopping the cooling system was set according to experimental measurement. Wind speed around the cattle was 0.5 m/s faster than the wind speed of feeding aisle at average. However, wind speed near the floor was less than 0.5 m/s which fits the requirement of displacement ventilation. The temperature and humidity difference of the vertical height between 2 m and 3 m from the floor in treatment barn were (1.11±0.11)℃and6.1%±0.5%respectively, while the difference in the control barn between 2 and 3 m from the floor were (0.6±0.05)℃and 3.9%±0.3%respectively. The results showed that cooling air from the fabric air dispersion mainly flowed to the area where the cattle stood, and

  18. 垫料型猪舍春夏育肥季节的氨气和温室气体状况测试%Measurement of Ammonia and GHGs Concentration of Hoop Structure Barn for Finishing Pigs in Summer and Spring Season

    Institute of Scientific and Technical Information of China (English)

    朱志平; 康国虎; 董红敏; 陶秀萍

    2011-01-01

    在规模化猪场内选择垫料育肥猪舍作为试验舍,以传统水泥地面育肥猪舍作为对照,利用多气体分析仪对试验舍和对照舍春夏两个育肥季节的NH3、CO2、CH4和N2O含量进行了连续3d的监测.结果表明:试验舍NH3 、CO2和N2O的平均含量分别只有对照舍的40%、70%和77%,存在显著性差异(P<0.05);夏季由于温度高,垫料易于厌氧发酵,加大了CH4排放,试验舍CH4平均含量高于对照舍,但两者之间无显著差异(P=0.089),春季试验舍的CH4平均含量低于对照舍,两者之间差异显著(P<0.05);试验舍中NH3含量变化在春季和夏季无显著差异(P =0.072),CO2 、CH4和N2O则存在显著性差异(P<0.05),夏季试验舍CO2含量低于春季,但NH3、CH4和N2O含量高于春季试验舍.说明垫料型猪舍能够改善舍内环境,减少有害气体排放.%To investigate ammonia and greenhouse gas concentration condition in swine barn,a hoop structure barn as experiment barn and typical swine barn with brick-concrete floor as control were chose at a confined swine farm in Beijing, gases concentration were measured for 3 consecutive days during spring and summer seasons using INNOVA 1312 multi-gas monitor. The results showed that the average NH3, C02 and N2 0 concentration in experiment bam was by 40% ,70% ,77% .respectively,compared with control barn (P <0. 05). The average CH4 concentration in hoop structure was higher than that in the control bam in summer,but lower in spring. The concentrations of CO2 ,CH4 and N2O had significant different (P <0.05) between summer and spring season in the hoop structure, but NH3 had no significant different, the CO2 concentration was lower in summer, NH3, CH4, N2 0 concentration was higher in summer than that in spring. The hoop structure barn could improve indoor environment and mitigate gases emission.

  19. « Quelques plumes de perroquet » : l’épreuve de la lecture et de la sur-écriture, de Flaubert’s Parrot à « Knowing French » de Julian Barnes

    OpenAIRE

    Tollance, Pascale

    2016-01-01

    « Knowing French » se présente comme une correspondance à sens unique. Les onze lettres qui composent la nouvelle sont adressées à un auteur dénommé Julian Barnes et signées par une lectrice qui vient de terminer Flaubert’s Parrot et décide de partager ses impressions avec l’auteur. Lectrice excentrique et indisciplinée, Sylvia digresse et divague plus que ne le faisait encore Geoffrey Braithwaite dans le fameux Perroquet et prolonge les interrogations soulevées par l’étrange essai biographiq...

  20. 《太阳照常升起》中杰克·巴恩斯之精神分析解读%A Psychoanalysis of Jake Barnes in The Sun Also Rises

    Institute of Scientific and Technical Information of China (English)

    曹曦颖

    2011-01-01

    The Sun Also Rises is the break-out novel of the famous American writer Hemingway. Jake Barnes, the hero of this novel, has long been the discussion focus of the academic circle. If we analyze the behaviors of Jake from the perspective of Freudian psychoanalytical criticism, we are going to find that the war is the basic reason for the ego restriction of Jake, while realistic anxiety, nervous anxiety, and moral anxiety are the psychological roots of his ego re- striction. Indeed, the aim that Jake restricts his ego is to extricate him from the anxieties caused by the shadows of the war. By revealing the ego restriction of Jake and its reasons, Hemingway shows his just idea that he hates the war, criti- cizes the war, and opposes the war.%《太阳照常升起》是美国著名作家海明威的成名作。长期以来小说中的男主人公杰克·巴恩斯一直是学术界争论的焦点。如果用弗洛伊德的精神分析批评学来观照杰克的行为,可以发现战争是导致杰克自我压抑的根本原因,而战争引起的现实性焦虑、神经性焦虑、道德性焦虑则是其自我压抑的心理根源。实际上,杰克自我压抑的目的就是为了摆脱战争阴霾所引起的种种焦虑。通过对杰克自我压抑的表现及原因的揭示,海明威表达了憎恨战争、抨击战争、反对战争的正义心声。

  1. Barns motstand som demokratisk deltaking i basebarnehagen

    Directory of Open Access Journals (Sweden)

    Liv Torunn Grindheim

    2013-01-01

    Full Text Available New kindergarten architecture in Norway with special rooms designed for specific learning activities are claimed to present space for democratic participation. Assuming that conditions for democratic participation can only be considered related to whether and how children participate, new architecture as context for children’s participation is questioned. Episodes from a fieldwork in such a kindergarten demonstrate that contrasts of the architecture, indicating both freedom of choice and regulations, are emerging in routine situations where children are shifting from one activity to another. In these situations children resist and challenge traditional power relations between children and adults, by involving adults in playing ‘hide and seek’. This playful resistance is interpreted as democratic participation, and thereby underlines play as an important way for children to express themselves as co-constructers of their communities in kindergartens.

  2. Barn owls do not interrupt their siblings

    OpenAIRE

    Dreiss A.N.; Ruppli C.A.; Oberli F.; Antoniazza S.; Henry I; Roulin A.

    2013-01-01

    Animals communicate with conspecifics to resolve conflicts over how resources are shared. Since signals reflect individuals' resource-holding potential and motivation to compete, it is crucial that opponents efficiently transmit and receive information to adjust investment optimally in competitive interactions. Acoustic communication is particularly flexible as it can be quickly modulated according to background noise and audience. Diverse mechanisms have evolved to minimize acoustic signal i...

  3. Odontogent myksom i maksillen hos et barn

    DEFF Research Database (Denmark)

    Danielsson, Lina Isabella; Jakobsen, John; Thygesen, Torben H;

    2014-01-01

    exclusively in the maxilla. Orbital involvement is very rare, and to our knowledge reconstruction with a Medpore sheet has not previously been reported. At post-operative follow-up normal eye function and an excellent cosmetic result was observed. OM should be considered in a midfacial mass....

  4. Det nye ideal er det entreprenante barn

    DEFF Research Database (Denmark)

    Pedersen, Peder Holm

    2010-01-01

    Det globale kapløb sætter en ny dagsorden for livet i børnehaven, og det er med til at skabe et nyt - og måske for snævert - begreb om pædagogisk faglighed, mener lektor John Krejsler og ph.d.-studerende Maja Plum. Udgivelsesdato: juni...

  5. Barns uppfattning om fåglar

    OpenAIRE

    Åhs, Gunilla

    2011-01-01

    Abstract   The purpose of this work is to investigate children’s perception of Swedish birds. Through qualitative questions there were twelve children interviewed. I showed the pictures for the children of different animals that we discussed but with focus on birds. The children could partly distinguish which of the pictures that represented birds and who did not. But they could not distinguish a particular species of birds they only saw similarities in the birds shape and color. Overall, had...

  6. Playboy Hefner meenutab ja naeratab / Brooks Barnes

    Index Scriptorium Estoniae

    Barnes, Brooks

    2009-01-01

    Kuigi meediaettevõte Playboy Enterprises on rahalistes raskustes, kärpides ka reklaamijatele lubatud levinumbrit 2,6 miljonilt eksemplarilt 1,5 miljonile, väidab ettevõtte asutaja Hugh Hefner, et Playboy ei ole kokkukukkumise äärel

  7. Barnsäkerhet i lantbruket

    OpenAIRE

    Möller, Ola

    1990-01-01

    A farmers child live, work and play at the farm. The farm is full of exciting and stimulating places but there are also situations and areas that are dangerous. This makes the lives of the countryside children different from the life of other children. This paper is about "Childsafety on farms". It is difficult to judge whether historically there has been an increase or decrease of childrelated accidents in agriculture. The subject is poorly investigated. The development in agriculture has in...

  8. Første danske barn tyndtarmstransplanteret

    DEFF Research Database (Denmark)

    Thøstesen, Lisbeth Marianne; Lassen, Lissi Bank; Qvist, Niels;

    2010-01-01

    A girl with extensive Hirschsprung's disease was operated, leaving her with a 35 cm short bowel. She received long-term parenteral nutrition through a central catheter. Progressive liver failure and intravenous access problems developed and at the age of 5.5 years she was transplanted in Birmingham...... with 270 cm small bowel, a reduced liver and pancreas. After the transplantation she received immunosuppressive medication, ursodeoxycholic acid and antibiotic prophylaxis. She is now well and on enteral nutrition, 32 months after the transplantation....

  9. Barn av grundsøgum

    DEFF Research Database (Denmark)

    Moberg, Bergur Rønne

    Hovedartiklen i bogen kaldes "Der må være en udkant" med undertitlen. "En videnskabelig tese om sted og nation som konstituerende træk ved færøsk litteratur" (50 s.). Stort set hele bogen diskuterer konstruktionsforestillingen i den modernistiske filosofi i forskellige sammenhænge....

  10. Comparative Analysis of Baked Effect of Flue-cured Tobacco Loaded by Different Patterns in Bulk Curing Barn%烤烟密集烤房不同装烟方式烘烤效果对比分析

    Institute of Scientific and Technical Information of China (English)

    张警予; 娄元菲; 王文超; 李昂; 董艳辉; 杨彦明; 贺帆; 宫长荣

    2014-01-01

    The comparative tests for the baked effect of flue -cured tobacco loaded by 3 different ways ( hanging rod , tobacco clamping, and dispersal leaf ) were carried out in bulk curing barn .The results indicated that: in comparison with the traditional hanging-rod baking , the dispersal-leaf baking could save labor and energy .The labor efficiency in tobacco -loading of hanging -rod way was basically the same as that of needle -type tobacco-clamping way , but the labor used in tobacco -weaving of the for-mer was 0.39 workers/667 m2 higher than that of the latter .The labor used in all links of dispersal -leaf way was 1.60 workers/667 m2 less than that of hanging -rod way, and 1.21 workers/667 m2 less than that of needle -type tobacco-clamping way.The energy-consumption cost in tobacco -baking of dispersal -leaf way and needle -type tobacco-clamping way was respectively 0.22 and 0.07 yuan/kg lower than that of hanging -rod way.The chemical compositions in the baked tobacco leaves loaded by tobacco -clamping way had the best harmony .The average price of baked dry tobacco leaves of needle -type tobacco-clamping way and dis-persal-leaf way was respectively 0.9 and 0.5 yuan/kg higher than that of hanging -rod way, and the medium-superior proportion of baked tobacco leaves of these two tobacco -loading ways was also higher than that of hanging -rod way .%挂竿、烟夹、散叶等3种装烟方式的烘烤对比试验表明:与传统挂竿烘烤相比,较散叶烘烤省工、节能,挂竿装烟和针式烟夹装烟环节用工效率基本一致,差异不明显,但编烟环节针式烟夹明显省工,总体节省了0.39个工/667 m2;散叶堆积较挂竿的各个环节均明显省工,散叶堆积较挂竿节省了1.60个工/667 m2,较针式烟夹节省用工1.21个工/667 m2。针式烟夹和散叶堆积较挂竿烘烤能耗成本略有降低,散叶堆积干烟较挂竿节省能耗成本0.22元/kg,针式烟夹干烟节省0.07元/kg。烟夹

  11. A specimen of Sorex cfr. samniticus in Barn Owl's pellets from Murge plateau (Apulia, Italy / Su di un Sorex cfr. samniticus (Insectivora, Soricidae rinvenuto in borre di Tyto alba delle Murge (Puglia, Italia

    Directory of Open Access Journals (Sweden)

    Giovanni Ferrara

    1992-07-01

    Full Text Available Abstract In a lot of Barn Owl's pellets from the Murge plateau a specimen of Sorex sp. was detected. Thank to some morphological and morphometrical features, the cranial bones can be tentatively attributed to Sorex samniticus Altobello, 1926. The genus Sorex was not yet included in the Apulia's fauna southwards of the Gargano district; the origin and significance of the above record is briefly discussed, the actual presence of a natural population of Sorex in the Murge being not yet proved. Riassunto Viene segnalato il rinvenimento di un esemplare di Sorex cfr. samniticus da borre di Tyto alba delle Murge. Poiché il genere non era stato ancora segnalato nella Puglia a sud del Gargano, viene discusso il significato faunistico del reperto.

  12. Small mammal communities of the "Monte Rufeno" Natural Reserve (Latium, Italy: data from Barn Owl Tyto alba pellets / I popolamenti di micromammiferi della Riserva Naturale "Monte Rufeno" (Lazio: dati da borre di barbagianni Tyto alba

    Directory of Open Access Journals (Sweden)

    Gaetano Aloise

    1990-07-01

    Full Text Available Abstract A high number of preys (7,147 specimens from barn owl pellets were collected in 15 sites of Monte Rufeno Natural Reserve. The 97.42% were small mammals, belonging to at least 6 species of Insectivora, 3 species of Chiroptera and 8 of Rodentia. The use of adequate indexes showed as expected, a high faunistic and biocenotic affinity among all sites of the Natural Reserve. Moreover, the values of trophic leve1 are analogous to the mean values found by others in the province of Rome. The biotic diversity is low and this result can be explained with predation of the barn owls over the most anthropizated areas out of the Natural Reserve. Faunistic and biocenotic indexes were utilized to compare the study area with other localities of Centra1 Italy characterized by typical mediterranean or temperate bioclimate. In one of the sites studied (Podernovo, seasonal changes of predation were analyzed. Riassunto In 15 siti posti all'interno della Riserva Naturale "Monte Rufeno" sono state raccolte numerose borre di Barbagianni Tyto alba in cui sono state rinvenute 7147 prede di cui il 97.42% costituito da micromammiferi. Alcuni indici ecologici (affinità biocenotica e faunistica, diversità biotica, termoxerofilia, antropizzazione, livello trofico sono stati applicati ai dati relativi ai micromammiferi terragnoli. Un confronto faunistico e biocenotico è stato effettuato tra i siti del comprensorio ed alcune località dell'Italia centrale caratteristiche di ambienti a bioclima mediterraneo o temperato. In uno dei siti studiati (Podernovo è stato possibile analizzare l'andamento stagionale della predazione.

  13. Barn och dataspel : Om mening och kultur i och kring barns spelande

    OpenAIRE

    Fryckholm, Janina

    2015-01-01

    Media debates about children and new technology is based on adult’s views and opinions, while children’s own knowledge on the subject seldom is represented. I stress that the reason for this is childism. This thesis aims to highlight a selected group of children’s experiences and knowledge about video games in relation to surrounding contexts, peers and adults. The empirical data consists of seven hours of observations from a course on video game programming as well as interviews with four of...

  14. La dieta de la lechuza (Tyto alba (Aves: Strigiformes en hábitats naturales y antropogénicos de la región central de Cuba Diet of Barn Owl (Tyto alba (Aves: Strigiformes in natural and anthropogenic habitat in central Cuba

    Directory of Open Access Journals (Sweden)

    Abel Hernández-Muñoz

    2011-03-01

    Full Text Available Para determinar los hábitos tróficos de la lechuza, Tyto alba, se analizaron 1232 egagrópilas recolectadas entre 1994 y 2001 en 24 localidades de la región central de Cuba. Se encontraron 3943 presas; los roedores exóticos (Mus musculus y Rattus spp. fueron las presas dominantes y representaron 80% del total. Otros tipos de presas fueron de menor frecuencia; por ejemplo, insectos (6.1%, murciélagos (5%, anfibios (4.8%, aves (3.6% y reptiles (0.2%. Se agruparon las localidades de recolecta de egagrópilas en 2 categorías de hábitat: antropogénicos y naturales, para explorar el efecto de los disturbios antrópicos en la dieta de la lechuza. Contrario a lo esperado, no se encontró variación significativa en el índice de amplitud trófica de Levins (Bantropogénicos= 1.32 ± 0.3 vs Bnaturales = 1.38 ± 0.4. La composición de la dieta en ambos hábitats no difiere, al menos en la proporción de las diferentes clases, aunque existe la tendencia a depredar más aves en hábitats naturales que en sitios perturbados donde los insectos son más frecuentes. Los resultados sugieren que tanto en hábitats antropogénicos como naturales, las lechuzas se comportan como depredadores efectivos de las poblaciones de roedores múridos introducidos.To determine food habits of Barn Owl, Tyto alba, we analyzed 1232 pellets collected from 24 localities in central Cuba from 1994 to 2001. The pellets yielded 3943 prey items, with introduced rodents (Mus musculus and Rattus spp. being the primary prey, accounting for 80% of items in the diet. Other prey classes were of minor frequency; e.g., insects (6.1%, bats (5%, amphibians (4.8%, birds (3.6%, and reptiles (0.2%.We grouped pellet collection localities into 2 habitat categories: "anthropogenic" and "natural," to explore the effect of anthropogenic disturbance on the diet Barn Owl. Contrary to our expectation, we found no significant difference in the Levin's niche-breadth index (B, calculated for the

  15. Comparison of bioaerosol sampling methods in barns housing swine.

    OpenAIRE

    Thorne, P. S.; Kiekhaefer, M S; Whitten, P.; Donham, K J

    1992-01-01

    The air in livestock buildings contains bioaerosol levels that are sufficiently high to cause adverse health effects in animals and workers. These bioaerosols are complex mixtures of live and dead microorganisms and their products as well as other aeroallergens. The effectiveness of sampling methods used for quantifying the very high concentrations of microorganisms in these environments has not been well studied. To facilitate an accurate assessment of respiratory hazards from viable organis...

  16. IT som verktyg i behandling inom barn- och ungdomspsykiatrin

    OpenAIRE

    Sjölund, Anette

    2014-01-01

    Information technology is increasingly used in healthcare. New methods, such as apps and computer programs and Internet-based treatments are introduced to treat various medical diagnoses. Increased demand for help in mental illness means that it is necessary to develop alternative assessment and treatments to traditional treatments that may be offered by primary care and specialist psychiatry. Government and Local Authorities and Regions (SKL) have agreed to support, and treatment on the web ...

  17. Seasonal cows’ milk productivity in the outdoor rest places barns

    Directory of Open Access Journals (Sweden)

    Marian Lipiński

    2013-09-01

    Full Text Available The authors assumed that, keeping high productive dairies outside a cowshed might reduce the seasonal character of milk production in Poland, which decrease is being observed in the summer. The attempt was made to determine the hierarchy of negative influences on dairies’ productivity, such as: average daily air temperature and maximum daily temperature and average daily relative humidity. The standard regression methods and artificial neural network were applied in the research. It appeared that allowing the dairies spend all-year-round outside the cowshed, might protect them against the heat stress in the summer. The strongest stimulus which reduces milk production is the level of maximum air temperature.

  18. Seasonal cows’ milk productivity in the outdoor rest places barns

    OpenAIRE

    Marian Lipiński; Ryszard Chaberski; Piotr Boniecki

    2013-01-01

    The authors assumed that, keeping high productive dairies outside a cowshed might reduce the seasonal character of milk production in Poland, which decrease is being observed in the summer. The attempt was made to determine the hierarchy of negative influences on dairies’ productivity, such as: average daily air temperature and maximum daily temperature and average daily relative humidity. The standard regression methods and artificial neural network were applied in the research. It app...

  19. Barn i klem mellom foreldrekonflikter og samfunnsmessig beskyttelse

    OpenAIRE

    Rød, Per Arne

    2012-01-01

    The main goal of this dissertation is to provide better knowledge about the situation of children in the context of high-conflict divorce. Norwegian and international research indicates that high-conflict divorces can be detrimental to the health and development of children. Through legislative acts as well as tradition, the care situation of Norwegian children is linked to their parents’ freedom of choice and their parental responsibility, although society has an obligation to...

  20. Udder health in a Danish compost bedded pack barn

    DEFF Research Database (Denmark)

    Svennesen, Line; Enevoldsen, Carsten; Bjerg, Bjarne Schmidt;

    Besides welfare advantages of the compost bedded pack system (CBP) there could be a negative effect of the organic bedding on udder health. Our objectives were to evaluate the effects of a CBP on udder health compared to a free stall system (FS) with sand bedded cubicles. Within the same Danish...... collected. Test day somatic cell count (SCC) and registered mastitis treatments (MT) were recorded at cow level during the EP and the preceding year to allow effective adjustment for cow- and season-level factors. Data was analyzed with logistic regression and random coefficient linear models. The incidence...

  1. Førskolelærere om barns oppholdstid i barnehagen

    Directory of Open Access Journals (Sweden)

    Birgitte Johansen

    2010-02-01

    Full Text Available Abstract: Norway is facing full day care coverage and most children have full time places. The local authorities
    responsible for the day care sector are framed by New Public Management principles of governing urging for
    more efficient and user oriented day care services. Full time day care is vital for adult worker families. Yet, historically
    there is evidence for scepticism towards full time day care in Norway, also among preschool teachers. There
    is little knowledge about present perceptions amongst preschool teachers of the best time for children to spend in
    day care. This is relevant to explore given the importance of expertise and knowledge in the government of parents
    and parental choices. The article analyses textual data from a survey and interview data and explores Norwegian
    preschool teachers’ understanding of the best period of time for children to spend in day care. The analyse
    is framed by day care organisation discourses and Norwegian discourses of family, childhood and parenting. It
    discusses the apparent ambivalence on the issue among the preschool teachers linked to their position as professionals
    in relation to parents.
    Keywords: Preschool teachers, children’s time in day care, new public management, working parents

  2. Female barn owls (Tyto alba) advertise good genes

    NARCIS (Netherlands)

    Roulin, A; Jungi, T.W; Pfister, H; Dijkstra, C.

    2000-01-01

    The good genes hypothesis of sexual selection postulates that ornamentation signals superior genetic quality to potential mates. Support for this hypothesis comes from studies on male ornamentation only, while it remains to be shown that female ornamentation may signal genetic quality as well. Femal

  3. CI og det døvblinde barn

    DEFF Research Database (Denmark)

    Dammeyer, Jesper Herup

    I den følgende artikel præsenterer jeg en diskussion af temaer omkring CI til døve og døvblinde børn og et treårigt psykologisk forskningsprojekt omkring CI.......I den følgende artikel præsenterer jeg en diskussion af temaer omkring CI til døve og døvblinde børn og et treårigt psykologisk forskningsprojekt omkring CI....

  4. Barn utsatt for komplekse traumer: diagnosebegrep og behandling

    OpenAIRE

    Rønning, Christina; Teige, Synnøve Oddfrid Veien; Løkke, Ragnhild Støren

    2009-01-01

    The purpose of this thesis was to consider whether complex trauma disorders should be included as a diagnostic entity, and to evaluate if trauma-focused cognitive behavioral therapy (TF-CBT) is a suitable treatment model for children with complex trauma reactions. First, we reviewed arguments supporting the existence of a complex trauma diagnosis, and considered research that supports postulated core problems in these children. Second, we presented research on the TF-CBT model for children ex...

  5. Trombotisk trombocytopenisk purpura hos barn med lavt ADAMTS13 enzymniveau

    DEFF Research Database (Denmark)

    Spangenberg, Katrine Bredsdorff; Clasen-Linde, Erik; Poulsen, Anja

    2014-01-01

    Thrombotic thrombocytopenic purpura (TTP) is a rare condition, but important to consider in case of thrombocytopenia and haemolysis. It is imperative to proceed with the correct treatment, in order to ensure a satisfactory outcome. TTP is either acquired or idiopathic. This case report shows that a...... 14-year-old boy has acquired TTP due to an infection with Campylobacter jejuni and Samonella szentes. Plasma exchange plays an essential role in the treatment of TTP....

  6. Etikk i praksis: Barn med samspillsvansker og medvirkning i barnehagen

    Directory of Open Access Journals (Sweden)

    Ingvild Åmot

    2012-11-01

    Full Text Available Title: Ethics in practice: Children who have difficulties interacting and their participation in day-care centres.Abstract: In recent years there has been a trend promoting "children’s right to participation". The point of departure for the article is qualitative data material collected from three day-care centres in Norway. The main objective has been to illuminate the choices the staff have and the dilemmas they face in their day-to-day practice when it comes to children who have interaction difficulties and their opportunities to participate. Findings: The practice is action-oriented. Actions, dilemmas and discretionary assessments are related to consequential- and deontological-ethics reasons.

  7. Etikk i praksis: Barn med samspillsvansker og medvirkning i barnehagen

    OpenAIRE

    Ingvild Åmot

    2012-01-01

    Title: Ethics in practice: Children who have difficulties interacting and their participation in day-care centres.Abstract: In recent years there has been a trend promoting "children’s right to participation". The point of departure for the article is qualitative data material collected from three day-care centres in Norway. The main objective has been to illuminate the choices the staff have and the dilemmas they face in their day-to-day practice when it comes to children who have interactio...

  8. Selvadministreret ventrikelsondeernaering hos et barn med infantil autisme

    DEFF Research Database (Denmark)

    Dyrborg, J

    1991-01-01

    An example of self-administered gastric tube nutrition in a boy aged 15 years with infantile autism is presented. The boy would neither eat nor drink in the normal manner since the age of eight years and has gradually administered tube-feeding himself. This patient does not fulfill the internatio...... international criteria for the diagnosis of anorexia nervosa. A possible etiological factor and the education/psychological attitudes to the compulsive symptom are discussed. Udgivelsesdato: 1991-Oct-14...

  9. Analysis of pesticide residues Or a needle in a barn

    International Nuclear Information System (INIS)

    This work is about the analysis of pesticide residues as well as the study of soil, air, water and organisms. The solvents used depend on the matrix, types of pesticides, analysis and the equipment. The chromatography engaged with mass spectrometry is one of the most used techniques.

  10. Hjernen og følelser--fra barn til voksen

    DEFF Research Database (Denmark)

    Plessen, Kerstin J; Kabicheva, Galina

    2010-01-01

    BACKGROUND: Contemporary neuroscience relates human behaviour, emotions and cognition to underlying neurobiological processes in the brain. Increased awareness of such processes may improve our understanding of emotional regulatory problems and development of psychopathology in some children and...... adolescents. MATERIAL AND METHODS: This article is based on articles identified through a non-systematic search in PubMed and on publications from the authors' own database. RESULTS: Several processes form the biological basis for how children and adolescents regulate their emotions when relating to others......: linear development of white matter, growth and subsequent elimination of gray matter and maturation of various neuronal networks in the brain. Emotional regulation develops discontinuously in children and adolescents, and varying degrees of maturation of specific neural networks involved in self...

  11. Stresshyperglykaemi hos et barn med svaer akut gastroenteritis

    DEFF Research Database (Denmark)

    Bjerre, Jesper V.

    2002-01-01

    A case of a two years and ten months old girl with severe acute gastroenteritis, dehydration, and hyperglycaemia is described. Transient hyperglycaemia is a common clinical finding in children under stress. We discuss the distinction between hyperglycaemia as a prediabetic state and that as a...

  12. Akutt lymfatisk leukemi hos barn i Norge 1992-2000

    DEFF Research Database (Denmark)

    Kolmannskog, Svein; Flaegstad, Trond; Helgestad, Jon;

    2007-01-01

    patients were followed up until 1.1. 2005. RESULTS AND INTERPRETATION: The diagnosis was made in 301 children, 33 new cases per year (range 24 to 40) on average. The peak incidence was between 2 and 5 years. Four of 6 infants with acute lymphoblastic leukemia and all 4 with mature B-cell leukemia are alive...... of central nervous system prophylaxis was given to just 10% of the children. The 10-year event-free survival (p-EFS) was 76%, and 244 of 289 (84%) were alive 4-13 years after the diagnosis was made. The data are comparable with the best international results. Udgivelsesdato: 2007-May-31...

  13. APD hos barn og ungdom – En normdatastudie

    OpenAIRE

    Myrvold, Magnus

    2013-01-01

    Background: Auditory Processing Disorder is difficult to diagnose and there is still a lot to learn about this condition. Recent research reports MLR as a promising new tool to help assess the disorder. The last few years efforts has been made to establish a Norwegian test battery for APD, but there is a need to conduct more research on electrophysiological measurements to supplement this battery. Purpose: The main purpose of this study was to describe performance of normal...

  14. Middle latency response hos barn med mistenkte auditive prosesseringsvansker

    OpenAIRE

    Wennberg, Siri

    2013-01-01

    Background: International research has shown that middle latency responses (MLR) are sensitive to auditory processing disorders. It seems to be a useful measurement for evaluation of the central auditory system and in the diagnosis of Auditory Processing Disorder (APD), but the MLR has not yet been established in a test battery for APD in Norway.Purpose: The main purpose of this study was to examine the components of MLR in a sample of children referred to the audiological department at St. O...

  15. Middle latency response hos barn med mistenkte auditive prosesseringsvansker

    OpenAIRE

    Wennberg, Siri

    2013-01-01

    Background: International research has shown that middle latency responses (MLR) are sensitive to auditory processing disorders. It seems to be a useful measurement for evaluation of the central auditory system and in the diagnosis of Auditory Processing Disorder (APD), but the MLR has not yet been established in a test battery for APD in Norway. Purpose: The main purpose of this study was to examine the components of MLR in a sample of children referred to the audiological department at St. ...

  16. Messenger in The Barn: networking in a learning environment

    Directory of Open Access Journals (Sweden)

    Malcolm Rutter

    2009-12-01

    Full Text Available This case study describes the use of a synchronous communication application (MSN Messenger in a large academic computing environment. It draws on data from interviews, questionnaires and student marks to examine the link between use of the application and success measured through module marks. The relationship is not simple. Total abstainers and heavy users come out best, while medium level users do less well, indicating the influence of two factors. The discussion section suggests possible factors. The study also highlights the benefits of support and efficiency of communication that the application brings. Although there have been many studies of synchronous communication tool use in the office and in social life, this is one of the first to examine its informal use in an academic environment.

  17. Messenger in The Barn: networking in a learning environment

    OpenAIRE

    Rutter, Malcolm

    2009-01-01

    This case study describes the use of a synchronous communication application (MSN Messenger) in a large academic computing environment. It draws on data from interviews, questionnaires and student marks to examine the link between use of the application and success measured through module marks. The relationship is not simple. Total abstainers and heavy users come out best, while medium level users do less well, indicating the influence of two factors. The discussion section suggests possible...

  18. Learning from drivers and conflicts around bedded pack barns

    OpenAIRE

    Galama, P.J.; Dooren, van, H.J.C.; Eilers, C.H.A.M.

    2012-01-01

    Due to problems with the freestall a network of dairy farmers in the Netherlands started looking for alternative housing systems for dairy cattle. Therefore researchers and dairy farmers shared ideas and looked abroad in America and Israel for housing systems without cubicles. This gave inspiration for deep bedded pack systems like in these countries. The drivers (motivations) for these housing systems were animal welfare and manure quality. However, they had to be made suitable for the Dutch...

  19. Hjernen og følelser--fra barn til voksen

    DEFF Research Database (Denmark)

    Plessen, Kerstin J; Kabicheva, Galina

    2010-01-01

    -regulation may explain different behavioural traits that are typical for specific age groups. INTERPRETATION: Emotional regulation develops in a complex interaction between a child's relationships, experiences, activities and underlying biological/genetic factors. Knowledge of these underlying neural constraints...

  20. Hjertetamponade hos et praematurt barn med perkutant anlagt centralt venekateter

    DEFF Research Database (Denmark)

    Callesen, Michael T; Nielsen, Peter Ehlert

    2008-01-01

    We report a case of a premature girl born with a gestational age of 26 weeks who developed cardiac tamponade after displacement of a peripheral inserted central catheter. She recovered completely after an acutely performed pericardiocentesis. The pericardial fluid was consistent with parental nut...

  1. Emosjonsregulering og motivasjon hos barn med AD/HD

    DEFF Research Database (Denmark)

    Høvik, Marie Farstad; Plessen, Kerstin J

    2010-01-01

    Impaired cognitive control functions have long been regarded as the main problem in the development of Attention-Deficit/Hyperactivity Disorder (ADHD). A more recent model emphasizes the importance of emotional and motivational problems. We have reviewed the evidence for this model, which may have...

  2. Førskolelærere om barns oppholdstid i barnehagen

    Directory of Open Access Journals (Sweden)

    Birgitte Johansen

    2010-02-01

    Full Text Available Norway is facing full day care coverage and most children have full time places. The local authorities responsible for the day care sector are framed by New Public Management principles of governing urging for more efficient and user oriented day care services. Full time day care is vital for adult worker families. Yet, historically there is evidence for scepticism towards full time day care in Norway, also among preschool teachers. There is little knowledge about present perceptions amongst preschool teachers of the best time for children to spend in day care. This is relevant to explore given the importance of expertise and knowledge in the government of parents and parental choices. The article analyses textual data from a survey and interview data and explores Norwegian preschool teachers’ understanding of the best period of time for children to spend in day care. The analysis is framed by day care organisation discourses and Norwegian discourses of family, childhood and parenting. It discusses the apparent ambivalence on the issue among the preschool teachers linked to their position as professionals in relation to parents. Preschool teachers, children's time in day care, new public management, working parents

  3. Learning from drivers and conflicts around bedded pack barns

    NARCIS (Netherlands)

    Galama, P.J.; Dooren, van H.J.C.; Eilers, C.H.A.M.

    2012-01-01

    Due to problems with the freestall a network of dairy farmers in the Netherlands started looking for alternative housing systems for dairy cattle. Therefore researchers and dairy farmers shared ideas and looked abroad in America and Israel for housing systems without cubicles. This gave inspiration

  4. FYSISK INAKTIVITET OCH STILLASITTANDE BLAND BARN OCH UNGA I GRUNDSKOLAN

    OpenAIRE

    Abdulla, Hana

    2013-01-01

    Children and youth inactivity and sedentary at school is increasing. This means that some of the students have a significant unhealthy lifestyle with physical inactivity, which in turn implies risks of suffering from various diseases, including obesity, type 2 diabetes and cardiovascular disease, all related to a sedentary lifestyle. To prevent illness, it is important that children and young people early get a positive attitude towards physical activity. The purpose of this study was to stud...

  5. Sol, jord och vatten. : Barns tankar om den ekologiska processen

    OpenAIRE

    Duberg, Karolina

    2008-01-01

    Studies show that the interest and knowledge about science among teenagers is decreasing. They also reveal the difficulties to explain the ecological processes and that the ideas about the nature are collected from everyday life and early school years. The intention of this investigation was to find out more about children’s ideas and knowledge about the ecological processes and to compare these results with the curriculum. The method was a questionnaire and interviews with children in school...

  6. Barn owl productivity response to variability of vole populations

    Czech Academy of Sciences Publication Activity Database

    Pavluvčík, P.; Poprach, K.; Machar, I.; Losík, J.; Gouveia, A.; Tkadlec, Emil

    2015-01-01

    Roč. 10, č. 12 (2015), e0145851. E-ISSN 1932-6203 Institutional support: RVO:68081766 Keywords : animal experiment * correlation coefficient * Czech Republic * fledgling * life history * nonhuman * productivity * specialization * stochastic model * theoretical model * time series analysis Subject RIV: EH - Ecology, Behaviour Impact factor: 3.234, year: 2014

  7. Toksisk shock syndrom. Et tilfoelde hos et barn med forbroending

    DEFF Research Database (Denmark)

    Glazowski, M J; Ostergaard, G Z; Arpi, M;

    1992-01-01

    recognition of the syndrome and institution of the correct treatment are of utmost importance. By means of an easy and rapid test, it is possible to detect if the strain of S. aureus is TSST-1-producing. The test is now available and employs passive latex agglutination. The sensitivity and specificity are...

  8. Petrunic and Anor. v. Barnes, 1 February 1988.

    Science.gov (United States)

    1988-01-01

    The defendant physician was charged with negligence and breach of contract in the performance of a tubal ligation on the plaintiff. After the plaintiff became pregnant and gave birth to twins, she and her husband sought damages for pecuniary losses resulting from the birth of twins, claiming that the defendant should have warned them of the risk of failure of the operation or mentioned the alternative of performance of a vasectomy on the husband. The Supreme Court of Victoria, Australia, held that the defendant had no duty to inform the plaintiffs of the risk of failure or the alternative of a vasectomy since his actions accorded with accepted practice within the profession. It also concluded that, even if he had warned the plaintiffs, they would not have withheld their consent to the operation. PMID:12289437

  9. Special: Barn som far illa - Barnuppfostran utan våld - en rättighet för varje barn.

    OpenAIRE

    Köhler, Marie; Lucas, Steven

    2014-01-01

    The view of children and child rearing has undergone a marked change in our country over the past 50 years. As the first country in the world, Sweden passed legislation 1979 on the prohibition of corporal punishment in the home. Many countries have followed suit, but at present, only 5,4% of the world's children have legal protection against violence and abuse. Children's rights are on the agenda, including work towards implementing the Convention on the Rights of the Child. Child abu...

  10. Barn som er utsatt for omsorgssvikt - hvordan oppdage dem? : en kvalitativ studie som belyser hvordan barnehageansatte oppdager barn som er utsatt for omsorgssvikt

    OpenAIRE

    Zivanovic, Darija

    2014-01-01

    Background: Suspected child abuse reports to Child Protective Services (CPS) made by pre-school teachers has been on the rise. Consequently, that raises the question about whether the teachers' knowledge or awareness of child abuse or the actual number of children who have been abused has increased. Pre-school teachers, as many other professionals who work with children on a daily basis, face many challenges in their work place. Purpose: The purpose of the study is to describe the pre-school ...

  11. Barn med foreldre i rusbehandling: En kvalitativ studie basert på intervju med foreldre om representasjonene av deres barn og relasjonen dem i mellom

    OpenAIRE

    Skjelten, Ingunn

    2013-01-01

    Children who have parents with a drug addiction is the main issue in this paper. The importance of early intervention and further research into the topic of childhood-at-risk due to parental and family problems are also relevant. In this study the population is related with numerous high-risk factors and a vulnerability to disorganized attachment.The purpose of this study is to look into the parents’ representations of their child and the parentchild relationship. A qualitative research inter...

  12. Vi och dom i skola och stadsdel : Barns identitetsarbete och sociala geografier

    OpenAIRE

    Gustafson, Katarina

    2006-01-01

    The thesis is an ethnographic study of children’s identity work and social geographies in the schools and neighbourhoods of a Swedish suburb. The aim of the reported research is to study children’s agency and their narratives of different places. The findings show how identity work can be understood from the viewpoint of children as social agents taking part in reconstructing their own social geographies. It is the social aspect of the identity work that is the focus here and how it is a rela...

  13. Stomi prolaps (tarm) og kirurgisk behandling av stomi prolaps hos barn

    OpenAIRE

    Johnson, Prince

    2015-01-01

    Abstract Background: An intestinal stoma is a surgical opening of the intestine, mostly sutured to the anterior abdominal wall. It is a common lifesaving operative procedure done on children. Stoma prolapse is one of the common complications of stoma. A significant number of stoma prolapse patients require surgical correction. Aim: This thesis is in two parts. The first part is a literature review of intestinal stoma prolapse and its surgical treatments. The second part is an evaluation of th...

  14. Tail streamers and flight performance in barn swallows:natural or sexual selection?

    OpenAIRE

    Barbosa, Andrés

    1999-01-01

    [ES] La forma de la cola y la eficacia del vuelo en la Golondrina Común: ¿selección natural o selección sexual? En este trabajo se discuten algunos problemas metodológicos graves que afectan a las conclusiones presentadas en un artículo reciente, publicado por Evans (1998) en la revista Nature, sobre la evolución de la forma de la cola en los machos de Golondrina Común Hirundo rustica. Se concluye que la interpretación desarrollada en ese artículo debe ser considerada con mucha ca...

  15. Citalogram indtaget under graviditet og barn født med Mb. Hirschsprung

    DEFF Research Database (Denmark)

    Nielsen, Sebastian Werngreen; Qvist, Niels

    A woman treated with citalopram during the entirety of her pregnancy bore a child with Hirschsprung's disease. Theories on the development of the enteric nervous system support a possible negative effect of SSRI usage. Epidemiological studies confirm a correlation between pregnant women's use of...... SSRIs and congenital malformations of their children's digestive system, but not specifically Hirschsprung's disease. Certain limitations in these studies might explain this lack of specificity....

  16. Mellan pekpinnar och retstickor : om mobbning bland barn på 1930 och 1940- talet

    OpenAIRE

    Forsberg, Linda

    2010-01-01

    In what way were children in the 1930s and 1940s mean to each other, in which ways did theytease and bully one another? And what were the adults part, how did they react to thechildrens spite towards each other and did they do anything to stop it?These are the questions which have been addressed in this essay. In the answers given to us,by a survey in which 42 persons born in the 1920s and 1930s were asked, we have learned,that during the 1930s and 1940s when these children went to school, bu...

  17. Demokrati som möjlighet i små barns liv och verksamhet

    Directory of Open Access Journals (Sweden)

    Birgitta Qvarsell

    2011-08-01

    Full Text Available Title: Democracy as a possibility in young children’s life and activitiesAbstract: In this article influence and partaking in decisions as fundamental preconditions for young children’s democratic possibilities and development are questioned. In a cultural democratic view, which is here proposed, other conditions may be more important, such as having to do with creative activities and ways to express oneself in various modes. Examples are given from daily life in and around preschool, to illustrate the reasoning of how democracy may grow and be expressed by young children, in terms of affordances, meaning making and room for action. Problems as well as possibilities are in the end a question of whose control and power will be most decisive in preschool daily life. However, it is also a question of respect. How active and autonomous may children be allowed to become?  

  18. Akut dissemineret encefalomyelitis er en vigtig differentialdiagnose hos det akut påvirkede barn

    DEFF Research Database (Denmark)

    Olofsson, Isa Amalie; Skov, Liselotte; Miranda, Maria Jose

    Acute disseminated encephalomyelitis (ADEM) is an immune-mediated inflammatory paediatric disorder of the central nervous system (CNS). ADEM primarily affects the white matter of the brain and spinal cord. The aetiology of ADEM is unknown, but the illness is often precipitated by an infection, less...

  19. Barns rätt till skydd och undervisning i krigsdrabbade områden

    Directory of Open Access Journals (Sweden)

    Michael Wessells

    2001-01-01

    Full Text Available The widespread global support for children’s rights is reflected in the nearly universal ratification of the U N Convention on the rights of the child. An immense gap exists, however, between the concept of children’s rights and the realities that many children experience. Millions of children are under assault by armed conflicts, prostitution, hunger, poverty and exposure to HIV/AIDS. This paper illuminates the violations of children’s rights that result from armed conflict and examines the opportunities and challenges this situation poses for education. Emergency education is increasingly viewed as a fundamental support for children in contexts of war, but educational interventions face difficult issues such as the presumed universality of human rights, colonial residues and ecological pressures that support violence at multiple levels. Relating these and other issues to the author’s field of experience in assisting war-affected children, the paper situates informal education in critical perspective yet argues that education is an essential tool for protecting children’s rights and building peace.

  20. Barns rätt till skydd och undervisning i krigsdrabbade områden

    OpenAIRE

    Michael Wessells

    2001-01-01

    The widespread global support for children’s rights is reflected in the nearly universal ratification of the U N Convention on the rights of the child. An immense gap exists, however, between the concept of children’s rights and the realities that many children experience. Millions of children are under assault by armed conflicts, prostitution, hunger, poverty and exposure to HIV/AIDS. This paper illuminates the violations of children’s rights that result from armed conflict and examines the ...

  1. On farm development of bedded pack dairy barns in The Netherlands : animal welfare and milk quality

    OpenAIRE

    Ouweltjes, W.; Smolders, E.A.A.

    2014-01-01

    In dit rapport worden resultaten beschreven, wat betreft diergezondheid en -welzijn alsmede melkkwaliteit, van 3 Nederlandse praktijkbedrijven, die hun melkvee de laatste jaren huisvesten in nieuw gebouwde vrijloopstallen. De 3 bedrijven hebben gemeen dat de koeien kunnen liggen in een vrijloopruimte, maar het soort bodem en de stalopzet zijn verschillend. 2 bedrijven gebruiken compost als bodemmateriaal, het 3e bedrijf gebruikt houtsnippers die in de stal composteren.This report describes fi...

  2. Mikilvægi forvarna í barnæsku gegn afbrotahneigð

    OpenAIRE

    Ester Helga Líneyjardóttir

    2012-01-01

    Í þessu verkefni er fjallað um eigindlega viðtalsrannsókn. Tilgangur rannsóknarinnar var að koma auga á áhættuþætti í umhverfi ungmenna sem sýnt hafa af sér afbrotahneigð. Skoðuð voru almenn persónueinkenni einstaklinga sem eru í áhættuhópi fyrir afbrotahneigð og þau borin saman við þátttakendur. Tilgangurinn með því var að skoða hvort þátttakendur hafi sýnt af sér hegðun í æsku sem telst til áhættuhegðunar og geti leitt af sér afbrotahneigð. Almennir áhættuþættir í fjölskyldum, sem og í skól...

  3. Tenkning i sykepleie om eksklusjon av foreldre ved barns innleggelse i sykehus

    Directory of Open Access Journals (Sweden)

    Hildegunn Sundal

    2015-12-01

    Full Text Available Analyses of textbooks in nursing, of photographs and numerous other documents suggest that parents had limited access to participate in the care for their hospitalized children in Norway in the period 1877-1940. The analyses are conducted in the tradition of the French philosopher Michel Foucault’s writings on discipline. In accordance with Foucault’s understanding, it seems logical that ideas about parenting exclusion had impact even within the hospital health care system in the current era, provided the general separation of parents and children in the modern industrial society at large. In this perspective, exclusion of parents in the hospital health care system may be considered a consequence of employers’ interests with regard to productivity, the lack of welfare services for parents, and the fear of parents transmitting infections from the hospitals.

  4. Spatial distributions of airborne dust in a cows barn exposed to influence of different ventilation rates

    OpenAIRE

    Topisirović G.; Petrović D.V.; Maletić R.

    2013-01-01

    Information on the concentration of dust particles is an important microclimate parameter that characterizes the local environmental quality of each livestock building. Increased concentration of dust particles primarily affects the indoor air quality and, consequently, the animal and workers health. Among many others, ventilation rate is a vital parameter that controls the spatial distribution of airborne dust particles in livestock buildings. This was the...

  5. A female melanin ornament signals offspring fluctuating asymmetry in the barn owl

    NARCIS (Netherlands)

    Roulin, A; Ducrest, AL; Balloux, F; Dijkstra, Cornelis; Riols, C

    2003-01-01

    Sexual selection theory predicts that males advertise quality by displaying extravagant ornaments. By contrast, whether phenotypic variation in females has a signalling function remains an open question. Here, to our knowledge, we provide the first evidence that a female plumage trait can signal flu

  6. Timing of arrival from spring migration is associated with flight performance in the migratory barn swallow

    OpenAIRE

    Matyjasiak, Piotr

    2012-01-01

    Timing of arrival at the breeding grounds by migratory birds affects their mating success and access to superior resources, thus being a major factor associated with fitness. Much empirical work has been devoted to investigate the condition dependence of arrival sequence of migrants and characteristics of individuals that influence arrival time from migration. Surprisingly, there are no studies examining the relationship between flight performance of individual birds and their arrival time. I...

  7. VizieR Online Data Catalog: First results from Mopra HCO+ maps (Barnes+,

    Science.gov (United States)

    Barnes, P. J.; Yonekura, Y.; Fukui, Y.; Miller, A. T.; Muhlegger, M.; Agars, L. C.; Miyamoto, Y.; Furukawa, N.; Papadopoulos, G.; Jones, S. L.; Hernandez, A. K.; O'Dougherty, S. N.; Tan, J. C.

    2011-11-01

    CHaMP began with complete surveys of a large portion of the southern Galactic Plane in four molecular spectral lines in the 3mm waveband made with the 4m Nanten telescope (see Figure 1). A higher-resolution follow-up campaign was then begun to map 209 clumps from the Nanten Master Catalogue (NMC) in a number of 3mm molecular transitions with the 22m diameter Mopra dish of the Australia Telescope National Facility (ATNF) over the period 2004-2007, at much higher sensitivity and angular resolution than with Nanten. (3 data files).

  8. Epidemiologi ved blandet bindevevsykdom, mixed connective tissue disease (MCTD hos barn

    Directory of Open Access Journals (Sweden)

    Odd Vinje

    2009-10-01

    Full Text Available There are three different classification criteria for this disease, all from 1987: The Alarcon-Segovia, Sharp and Kasukawa criteria. There is still no international concensus as to which of them should be used. This makes comparison between different reports using different classification criteria difficult. Mixed connective tissue disease seems next to systemic sclerosis to be the most infrequent systemic connective tissue disease in children. The incidence is reported to amount to 0.1-0.3/100,000/year. Female/male ratio is reported to be 2-3/1, median age for disease debut about 11 years, range 4-16 years. The most frequent cause of death is probably pulmonary hypertension, but death because of sepsis, hearth failure, renal failure, CNS disease and gastrointestinal bleeding is also reported. Mortality rate is probably lower in mixed connective tissue disease with debut in childhood than in adult life.

  9. Epidemiologi ved blandet bindevevsykdom, mixed connective tissue disease (MCTD) hos barn

    OpenAIRE

    Odd Vinje; Berit Flatø

    2009-01-01

    There are three different classification criteria for this disease, all from 1987: The Alarcon-Segovia, Sharp and Kasukawa criteria. There is still no international concensus as to which of them should be used. This makes comparison between different reports using different classification criteria difficult. Mixed connective tissue disease seems next to systemic sclerosis to be the most infrequent systemic connective tissue disease in children. The incidence is reported to amount to 0.1-0.3/1...

  10. Talandet som levd erfarenhet. : En studie av fyra barn med Downs syndrom.

    OpenAIRE

    Bengtsson, Karin

    2006-01-01

    This thesis presents a study of children’s speech. The children have Down syndrome (DS). Often the speech of children with DS is hard for other people to understand. The aim of the study is to try a new way of describing these children’s speech. My perspective reflects an ambition to conceive the children as active, speaking subjects. In phenomenology human beings are regarded as always being intentional. The phenomenological perspective on intentionality views articulation as intentional, ev...

  11. Lyrik i skolan : Hur lyrik i skolan kan utveckla barns kreativa skrivande

    OpenAIRE

    Jansson, Kerstin

    2006-01-01

    Abstract When I was a child my mother and I wrote a lot of poems, but in school we didn´t write poems at all. As a teacher I want to show the children the joy and happiness of writing poems, stories and fairy tales. The purpose of this report was to investigate the work with poetry and creative writing in my class and how the pupils experienced their own work/writing. I began with asking the pupils in my class a few and simple questions about poetry, then we made a diffrent kinds of poetry wr...

  12. Barn og ungdom med astma - erfaringer med og tanker om fysisk aktivitet. En kvalitativ intervjustudie

    OpenAIRE

    Berg, Live Ragne

    2012-01-01

    Background: Many children have asthma. Physical activity is recommended as part of the treatment of asthma. There are few norwegian studies that have examined in depth how children and adolescents with asthma experience physical activity. The purpose whit the study is to find out more about how children / adolescents with asthma experience physical activity; their attitudes to physical activity as they experience it, to what extent they feel it gives meaning, and their experience of coping wi...

  13. Ekstrakorporal membranoxygenering af et barn med svær kemisk pneumoni

    DEFF Research Database (Denmark)

    Bille, Anders Bastholm; Pedersen, Karen Damgaard; Hertel, Steen

    2011-01-01

    This case presents a thirteen months old child with severe acute respiratory distress syndrome after ingestion of lamp oil (hydrocarbon). Mechanical ventilation including high-frequency oscillation could not stabilise the course, and the child developed pneumothorax and emphysema. Treatment was...

  14. Tidlig eller sen afnavling af det mature, det praemature og det meget praemature barn

    DEFF Research Database (Denmark)

    Moller, N.K.; Weber, T.

    2008-01-01

    Randomized studies from 2006 and two meta-analyses published in 2007 agree that clamping of the umbilical cord can be delayed. For the preterm and very preterm infant benefits include less need for blood transfusion and less morbidity, especially for the very preterm male infant. For the term...

  15. Theoretical foundations of the sound analog membrane potential that underlies coincidence detection in the barn owl.

    Science.gov (United States)

    Ashida, Go; Funabiki, Kazuo; Carr, Catherine E

    2013-01-01

    A wide variety of neurons encode temporal information via phase-locked spikes. In the avian auditory brainstem, neurons in the cochlear nucleus magnocellularis (NM) send phase-locked synaptic inputs to coincidence detector neurons in the nucleus laminaris (NL) that mediate sound localization. Previous modeling studies suggested that converging phase-locked synaptic inputs may give rise to a periodic oscillation in the membrane potential of their target neuron. Recent physiological recordings in vivo revealed that owl NL neurons changed their spike rates almost linearly with the amplitude of this oscillatory potential. The oscillatory potential was termed the sound analog potential, because of its resemblance to the waveform of the stimulus tone. The amplitude of the sound analog potential recorded in NL varied systematically with the interaural time difference (ITD), which is one of the most important cues for sound localization. In order to investigate the mechanisms underlying ITD computation in the NM-NL circuit, we provide detailed theoretical descriptions of how phase-locked inputs form oscillating membrane potentials. We derive analytical expressions that relate presynaptic, synaptic, and postsynaptic factors to the signal and noise components of the oscillation in both the synaptic conductance and the membrane potential. Numerical simulations demonstrate the validity of the theoretical formulations for the entire frequency ranges tested (1-8 kHz) and potential effects of higher harmonics on NL neurons with low best frequencies (<2 kHz). PMID:24265616

  16. Before the horse is out of the barn: fetal surgery for hydrops.

    Science.gov (United States)

    Bullard, K M; Harrison, M R

    1995-12-01

    Hydrops fetalis, a condition characterized by abnormal accumulation of fluid and edema in the fetus, is the final common pathway in a number of pathological conditions. The diagnosis of hydrops is based on ultrasonographic findings of generalized edema along with a serous effusion (ascites, pleural effusion, or pericardial effusion). Polyhydramnios and placentomegaly may also be present. Historically, hydrops fetalis has been described in cases of Rh alloimmunization and severe erythroblastosis (immune hydrops). Hydrops is considered "nonimmune" if there is no evidence of fetal-maternal blood group incompatibility. Over the past few decades, nonimmune hydrops has been recognized more frequently. In a number of series, 80% to 90% of hydropic fetuses were considered nonimmune. Incidence ranges from 1 in 1,500 to 1 in 3,800 births. Etiology is diverse and associated conditions include cardiovascular malformations, chromosomal abnormalities, thoracic lesions, infections, metabolic disorders, fetal anemia and twinning. Overall prognosis is poor, with mortality between 50% and 98%. Advances in obstetric ultrasound and prenatal diagnosis have made it possible to diagnose a number of congenital anomalies early in gestation. In some cases, anatomic anomalies diagnosed in utero progress to nonimmune hydrops and almost certain fetal demise. It is these conditions that can be considered for fetal surgical intervention. This article reviews the pathophysiology and rationale behind surgical correction of two conditions that lead to hydrops: fetal thoracic lesions (congenital cystic adenomatoid malformation, pulmonary sequestration, and fetal pleural effusions) and sacrococcygeal teratoma (SCT). PMID:8822330

  17. Playing with Collective Memories: Julian Barne's "England, England" and New Labour's Rebranding of Britain

    OpenAIRE

    Navarro Romero, Betsabé

    2011-01-01

    In a situation of national identity crisis due to the loss of Empire, globalization and mass migration, Britain has recently been looking for a new orientation of its role in the world. Being an attempt to influence and change the conception of Britishness, New Labour's modernization programme in the 1997 general election illustrates the way national identities, understood as imagined communities, are artificially and conveniently constructed by the political elite. Similarly, history writing...

  18. Sibling rivalry and vocal negotiation in the barn owl Tyto alba

    OpenAIRE

    Ruppli C.-A.

    2013-01-01

    Chez les animaux, les jeunes dépendant des parents durant leur développement sont en compétition pour obtenir la nourriture, qu'ils quémandent par des cris et postures ostentatoires et se disputent physiquement. Les frères et soeurs n'ont pas la même compétitivité, en particulier s'ils diffèrent en âge, et leur niveau de faim fluctue dans le temps. Comme dans tout type de compétition, chacun doit ajuster son investissement aux rivaux, c'est à dire aux besoins et comportements de ses frères et...

  19. Kunsten at lære sit barn at køre bil

    DEFF Research Database (Denmark)

    Møller, Mette

    2014-01-01

    En ny amerikansk undersøgelse tyder på, at forældres vejledning af deres børn i forbindelse med privat øvelseskørsel, primært vedrører aspekter som håndtering af køretøjet, manøvrering og kørehastighed. Undersøgelsen tyder endvidere på, at forældre kun i begrænset omfang sætter fokus på mere avan...

  20. Animal Assisted Therapy : ett team i behandling och terapi av barn och unga

    OpenAIRE

    Lantz, Linda; Steénmark, Annika

    2006-01-01

    The main purpose of this examination paper has been to do a review of recent scientific and evaluated studies performed on children 0-15 years of age, treated with an animal as an assistant to the therapist/professional. The key term is Animal Assisted Therapy (AAT). Our focus has been to describe in what fields these kinds of studies have been performed, what the results are and how effective they have been. As a supplement to our study we have performed 8 short telephone interviews with pro...

  1. Individuella utvecklingsplaner för yngre barn i Sverige; Ett kritiskt ämnesdidaktiskt perspektiv

    OpenAIRE

    Ann-Christine Vallberg Roth; Annika Månsson

    2008-01-01

    Individual development plans for younger children from a critical subject didactics perspective. The pa- 

    per aims to describe and problematize the content of individual development plans (IDP) for preschool and pre- 

  2. Genuin natur eller massmedial kultur i barns billedskapande. En kommentar til Bodil Havskov Jensen

    Directory of Open Access Journals (Sweden)

    Gert Nordström

    1987-08-01

    Full Text Available I denne lille artikel diskuterer Gert Z. Nordström læse- og skriveindlæring kontra billedskaben og massemediebilleder. Anledningen er en bog af Bodil Havskov Jensen; "Børns billeder. Erkendelse af form og betydning" (Borgen 1986, 272 sider. Den får nogle kritiske kommentarer hen ad vejen, men fungerer derudover som afsæt for nogle mere principielle betragtninger af såvel pådagogisk som videnskabsteoretisk karakter.

  3. Laryngeal neurofibromatose hos et ni måneder gammelt barn

    DEFF Research Database (Denmark)

    Højbak, Anette Fribo Møller; Schollert, Niels Erik; Jensen, Eva Margrethe Precht; Illum, Niels; Jepsen, Søren; Godballe, Christian

    2011-01-01

    Neurofibroma of the larynx is a very rare condition. A nine month-old boy presented with airway obstruction due to a plexiform neurofibroma of the larynx. It also involved the proximal part of trachea and hypopharynx. Surgical excision was not a possibility. A tracheotomy was performed in order t...

  4. Citalopram indtaget under graviditet og barn født med Mb

    DEFF Research Database (Denmark)

    Nielsen, Sebastian Werngreen; Qvist, Niels

    2014-01-01

    Citalopram taken during pregnancy and the child born with Ugeskr Laeger 2013;175:V03130178 A woman treated with citalopram during the entirety of her pregnancy bore a child with Hirschsprung’s disease. Theories on the development of the enteric nervous system support a possible negative effect of...

  5. Identitet hos barn som tilbringer deler av oppveksten utenfor sitt opprinnelsesland : En litteraturstudie

    OpenAIRE

    2009-01-01

    The article is a literature-study focusing on the nature of identity development and self perception of third culture kids. A Third Culture Kid (TCK) is “a person who has spent a significant part of his or her developmental years outside the parents` culture” (Pollock and Van Reken 2001: 19). On the basis of identity theories from the fields of clinical psychology, developmental psychology and psychology of the self, the article offers an interdisciplinary discussion on whether a third cu...

  6. Logopeder och barn i interaktion : Samtalsanalys vid behandling av språkstörning

    OpenAIRE

    Hammarström, Karin; Lindkvist, Stina

    2009-01-01

    Speech intervention for children with language impairment aims to both strengthen specific language skills and to reinforce the ability to participate in interactional contexts. Children with language impairment often have problems in interaction; therefore the contributions of the conversational partner are of great importance. Thus, the demands are high on the speech and language pathologist (SLP) for sense and cohesion in intervention. The aim of the present study was to examine how SLPs a...

  7. Closing the Barn Door: The Effect of Parental Supervision on Canadian Children's Online Privacy

    Science.gov (United States)

    Steeves, Valerie; Webster, Cheryl

    2008-01-01

    Empirical data from a large sample of Canadian youth aged 13 to 17 years suggest that, although the current privacy policy framework is having a positive effect on the extent to which young people are complying with the types of behavior promoted by adults as privacy protective, its primary focus on parental supervision is inadequate to fully…

  8. Brood parasitism and quasi-parasitism in the European barn swallow Hirundo rustica rustica

    Czech Academy of Sciences Publication Activity Database

    Petrželková, Adéla; Michálková, R.; Albrechtová, Jana; Cepák, J.; Honza, Marcel; Kreisinger, J.; Munclinger, P.; Soudková, M.; Tomášek, Oldřich; Albrecht, Tomáš

    2015-01-01

    Roč. 69, č. 9 (2015), s. 1405-1414. ISSN 0340-5443 R&D Projects: GA ČR(CZ) GAP506/12/2472 Institutional support: RVO:68081766 Keywords : Altricial birds * Colonial breeding * Conspecific brood parasitism * Egg dumping * Host fitness * Parasite fitness Subject RIV: EG - Zoology Impact factor: 2.350, year: 2014

  9. Barns kunskaper om djurarter : Kan kunskaperna skilja beroende på vart man bor?

    OpenAIRE

    Lundsten, Emelie

    2011-01-01

    This study is about differences in knowledge regarding animals. In the study five year old preschool children from a city were compared to five year old preschool children in the suburbs with multicultural background. The study is also about where children´s knowledge about animals comes from and how educators can make a positive difference. To find this out standardized interviews was used on 23 children from four different preschools, two preschools in the suburbs with 15 children and two p...

  10. Barn Swallow Hirundo rustica parents work harder when foraging conditions are good

    NARCIS (Netherlands)

    Schifferli, Luc; Grueebler, Martin U.; Meijer, Harro A. J.; Visser, G. Henk; Naef-Daenzer, Beat

    2014-01-01

    In altricial birds, the great effort involved in supplying food to nestlings can create trade-offs in the allocation of resources between the current brood and parental self-maintenance. In poor foraging conditions, parents have to adjust their energy expenditure in relation to the increased foragin

  11. Differential Endocannabinoid Regulation of Extinction in Appetitive and Aversive Barnes Maze Tasks

    Science.gov (United States)

    Harloe, John P.; Thorpe, Andrew J.; Lichtman, Aron H.

    2008-01-01

    CB[subscript 1] receptor-compromised animals show profound deficits in extinguishing learned behavior from aversive conditioning tasks, but display normal extinction learning in appetitive operant tasks. However, it is difficult to discern whether the differential involvement of the endogenous cannabinoid system on extinction results from the…

  12. Anestesipersonalens peri-operativa omvårdnad av överviktiga och obesa barn

    OpenAIRE

    Åman, Mikael; Joakim, Behrendtz

    2012-01-01

    Children are a group of patients that require special knowledge from the anesthesia staff, both general and specific. Theoretical knowledge and practical experience is necessary to adequately care for the child as it anatomically, physiologically and mentally may differ from adult patients. A growing problem in the pediatric population is overweight and obesity. From a stagnation in the early 2000s the prevalence of overweight and obesity among children in the world are again increasing.The p...

  13. Dietary CP and Tannin Extracts Impact Ammonia Emissions From Manure Deposited On Dairy Barn Floors

    Science.gov (United States)

    The impact of dietary CP and Quebracho-Chestnut tannin extracts on dairy cow performance and N partitioning are reported elsewhere at this meeting. Mixtures of feces/urine from these studies were applied to lab-scale ventilated chambers to measure ammonia-N emissions (ANE) from simulated concrete ba...

  14. Guide för referenshantering : APA-manual inom Barn- och ungdomsvetenskap (BUVA)

    OpenAIRE

    Engdahl, Ingrid

    2014-01-01

    Denna guide behandlar först hur du enligt APA refererar i löpande text och därefter hur man skriver en referenslista. För en komplett guide till APA Style hänvisas till Publication Manual of the American Psychological Association (American Psychological Association, 2010) eller till hemsidan http://www.apastyle.org, där det finns tydlig introduktion i ljud och bild till APA Style.

  15. Spatial Variation in Microbial Populations Across a Cattle Feedlot Transect from Barn to Retention Basin

    Science.gov (United States)

    Run-off from livestock production can pose a risk to environmental quality particularly in karst terrains where geomorphic features like sinkholes provide rapid passage for contaminants to ground water resources. In these environments, it is especially important to understand how variations in terr...

  16. Uttryck genom handling: Medierande verktyg i körledararbete med barn och unga.

    OpenAIRE

    Bygdéus, Pia

    2012-01-01

    English title: Expression through action. Mediating tools in choral leaders’ work with children’s choir and youth choir. The role of the choir leader is a complex one. When working with a choir, choir leaders often use several aspects of their professional role. The aim of this qualitative study is to describe, verbalise and make visible the mediating tools that choir directors working with children and youth choirs use. In a longitude study, four choir leaders were observed closely while ...

  17. Anstrengelsesutløst astma hos barn og ungdom : En oversiktsartikkel

    OpenAIRE

    2012-01-01

    This review concerns the challenge of growing prevalence of exercise-induced asthma (EIA) in physically active children and adolescents. The article will encompass both mechanisms for developing exercise-induced asthma and bronchoconstriction in children and young athletes and how to manage these symptoms, as well as the epidemiology, diagnosis and treatment. EIA occurs in up to 70-80% percent of asthmatics and 8,6% of Norwegian 10-year-olds in the general population. The severity of th...

  18. Handledningsrelationen vid barn och ungdomsenheten vid Oravais flyktingförläggning

    OpenAIRE

    Backlund-Enges, Susanna

    2010-01-01

    Målsättningen med lärdomsprovet var att reda ut hur flyktinghandledarna påverkas av arbetet med ensamkommande, minderåriga flyktingar. Vid litteraturgenomgången framkom att hjälparens relation till den som behöver hjälp, utsätter hjälparen för sekundär traumatisering. Handledningsrelationen som uppstår mellan flyktinghandledaren och den ensamkommande, minderåriga flyktingen påverkar handledarna. Frågorna som ställdes i forskningen var således vad en handledningsrelation är, hur den påverkar h...

  19. Occupational exposure to particulate matter and respiratory symptoms in Portuguese swine barn workers.

    Science.gov (United States)

    Viegas, S; Mateus, V; Almeida-Silva, M; Carolino, E; Viegas, C

    2013-01-01

    Certain environmental conditions in animal and plant production have been associated with increased frequency in respiratory illnesses, including asthma, chronic bronchitis, and hypersensitivity pneumonitis, in farmers occupationally exposed in swine production. The aim of this study was to characterize particulate matter (PM) contamination in seven Portuguese swine farms and determine the existence of clinical symptoms associated with asthma and other allergy diseases, utilizing the European Community Respiratory Health Survey questionnaire. Environmental assessments were performed with portable direct-reading equipment, and PM contamination including five different sizes (PM0.5, PM1.0, PM2.5, PM5.0, PM10) was determined. The distribution of particle size showed the same trend in all swine farms, with high concentrations of particles with PM5 and PM10. Results from the questionnaire indicated a trend such that subjects with diagnosis of asthma were exposed to higher concentrations of PM with larger size (PM2.5, PM5, and PM10) while subjects with sneezing, runny nose, or stuffy nose without a cold or flu were exposed to higher concentrations of PM with smaller size (PM0.5 and PM1). Data indicate that inhalation of PM in swine farm workers is associated with increased frequency of respiratory illnesses. PMID:24168036

  20. Selvfølelse som livsfundament. Musikkterapeuters arbeid med barn og unges psykiske helse.

    OpenAIRE

    Kirkerud, Hilde

    2016-01-01

    Summary - The aim of the present study is to explore themes related to music therapy, children and young people and mental health. A qualitative, hermeneutic-phenomenological approach and semi-structured interviews with four music therapists, seeks to answer the research question What kind of position does self-esteem and sense of self hold in music therapy practice promoting childrens and young people´s mental health? The procedure chosen for the analysis is Interpretativ Phenomenologic...

  1. A Trade-Off between Reproduction and Feather Growth in the Barn Swallow (Hirundo rustica)

    OpenAIRE

    Saino, N; Romano, M.; Rubolini, D.; Ambrosini, R.; A. Romano; Caprioli, M.; Costanzo, A; G. Bazzi

    2014-01-01

    Physiological trade-offs mediated by limiting energy, resources or time constrain the simultaneous expression of major functions and can lead to the evolution of temporal separation between demanding activities. In birds, plumage renewal is a demanding activity, which accomplishes fundamental functions, such as allowing thermal insulation, aerodynamics and socio-sexual signaling. Feather renewal is a very expensive and disabling process, and molt is often partitioned from breeding and migrati...

  2. Att plantera ett barn : internationella adoptioner och assisterad befruktning i svensk reproduktionspolitik

    OpenAIRE

    Jonsson Malm, Carolina

    2011-01-01

    The purpose of this thesis is to study the norms and values surrounding the family and the nation-state in Swedish family policy as they appear in Official Government Reports (SOU) on international adoption and assisted reproductive technology (ART) between 1953 and 2007. I argue that the committees’ reports can be viewed as normative statements constituting a hegemonic state discourse. The methodological approach is based on the ideas of Michel Foucault, especially the concepts relating to g...

  3. "Stakkars pappa" – hva kan far-barn-relasjonen si oss om barnerollen?

    Directory of Open Access Journals (Sweden)

    Kiil, Hanne

    2011-03-01

    Full Text Available “Poor daddy”–child's perspective and iconotext in three award-winning picture books. The Western dichotomy between children and adults characterize our opinion both on children and childhood. In this understanding framework the children are seen as something totally different from adults. Can artistic children's literature modify this habitual thinking about such hierarchical levels? The three books to examine closer have all won awards from Ministry of Culture as the best Norwegian picture book that year. Both Svein Nyhus: Pappa [Daddy] (1998, Hans Sande and Gry Moursund: Arkimedes og brødskiva [Archimedes and the Sandwich] (2000 and Stein Erik Lunde and Øyvind Torseter: Eg kan ikkje sove no [I Can't Sleep Now] (2008 are first-person narratives where the main character is a child. In such picture books visual and verbal point of view rarely are the same. The illustrations usually observe the central character from a distance and then allow the reader not only to adopt the narrator's point of view. What kind of ambiguities in the complex relationship between text and images give signals to the readers–and to the understanding of the narrator's position and perspective? What can this perspective and the iconotext in the three books tell us about today's children's role?

  4. Helicobacter pylori Eradication and Gastric Cancer: When Is the Horse Out of the Barn?

    NARCIS (Netherlands)

    A.C. de Vries; E.J. Kuipers; E.A.J. Rauws

    2009-01-01

    Helicobacter pylori infection is a major risk factor for gastric cancer development. Therefore, H. pylori eradication may be an important approach in the prevention of gastric cancer. However, long-term data proving the efficacy of this approach are lacking. This report describes two patients who de

  5. Spiseforstyrrelse hos en 19 måneder gammel pige med komorbid mor-barn-relationsforstyrrelse

    DEFF Research Database (Denmark)

    Olsen, Anne Lise; Sigvard, Anne Mette; Skovgaard, Anne Mette

    2015-01-01

    Feeding and eating problems and weight faltering are common causes for parents contact to health services in infancy and early childhood, and 0.15% of the child population aged 0-3 years are diagnosed at hospital with an ICD-10 childhood eating disorder. We describe the clinical presentation of an...... early feeding and eating disorder in a child of basically normal health and deve-l-op-ment. The case illustrates the significance of the mother child relationship both in the putative risk mechanisms and as a key factor in the treatment. The importance of a close coopera-tion between paediatric and...

  6. Tilhørighet og trygghet En kvalitativ studie om forebyggende psykisk helsearbeid hos barn

    OpenAIRE

    Gulbrandsen, Bente Iren Hønneland

    2015-01-01

    Background and purpose of the Project The purpose of this study was to examine what could promote good mental health to children of elementary school age. In recent years, bullying stories have been illuminated in the media. Today many children are struggling against low self-esteem, self-harm, exclusion and mental challenges. My aim was to investigate what children themselves experienced as meaningful for their well-being and confidence in their everyday school life. In this s...

  7. Population Coding of Interaural Time Differences in Gerbils and Barn Owls

    OpenAIRE

    Lesica, Nicholas A; Lingner, Andrea; Grothe, Benedikt

    2010-01-01

    Interaural time differences (ITDs) are the primary cue for the localization of low-frequency sound sources in the azimuthal plane. For decades, it was assumed that the coding of ITDs in the mammalian brain was similar to that in the avian brain, where information is sparsely distributed across individual neurons, but recent studies have suggested otherwise. In this study, we characterized the representation of ITDs in adult male and female gerbils. First, we performed behavioral experiments t...

  8. Comparison of segmentation algorithms for cow contour extraction from natural barn background in side view images

    NARCIS (Netherlands)

    Hertem, van T.; Alchanatis, V.; Antler, A.; Maltz, E.; Halachmi, I.; Schlageter Tello, A.A.; Lokhorst, C.; Viazzi, S.; Romanini, C.E.B.; Pluk, A.; Bahr, C.; Berckmans, D.

    2013-01-01

    Computer vision techniques are a means to extract individual animal information such as weight, activity and calving time in intensive farming. Automatic detection requires adequate image pre-processing such as segmentation to precisely distinguish the animal from its background. For some analyses s

  9. Ammonia emissions factors from broiler litter in barns, storage, and after land application

    Science.gov (United States)

    Ammonia (NH3) emissions from poultry litter can cause high levels of NH3 in poultry rearing facilities, as well as atmospheric pollution. The objectives of this study were to: (1) measure NH3 emissions from litter in broiler houses, during storage and following land application, and (2) conduct a m...

  10. Interaktion hos yngre barn med grav cerebral pares : En fallstudie av interaktionen hos två yngre barn och deras närmaste omgivning med ett strukturerat bedömningsmaterial

    OpenAIRE

    Sjöblom, Evelina; Johannisson, Josefina

    2014-01-01

    Kommunikation är avgörande för att uppnå en god livskvalitet och grundläggande för att kunna förstå andra och göra oss själva förstådda. Grunden för en tillfredsställande kommunikation är att det finns ett samspel mellan de parter som ingår, vilket förutsätter att det sker ett ömsesidigt utbyte mellan samtalsparterna. De funktionsnedsättningar som cerebral pares ofta leder till kan medföra svårigheter för individen att göra sig förstådd. Det saknas idag svenska studier gällande interaktionen ...

  11. Behandlingen av ekstremt premature barn - våre dyreste pasienter?: en studie av ressursbruken ved behandlingen av for tidlig fødte barn ved St. Olavs Hospital i perioden 1997-2007

    OpenAIRE

    Nordermoen, Anja

    2009-01-01

    Treatment of extremely low birth weight infants – our most expensive patients?Background: Treatment of premature infants is expensive and increasing due to advanced medical technology and rising labour costs. Treatment of extremely low birth weight (ELBW) infants has therefore been used as an example of a section of the healthcare where the outcome might not justify the use of resources. There are, however, few Norwegian studies on this matter.Objective: The aim of the study was to estimate i...

  12. Barn- och ungdomars uppfattning om sin övervikt och fetma som ett problem samt skillnader i aktivitetsnivån hos barn- och ungdomar beroende på deras sociala familjesituation

    OpenAIRE

    Stenstave, Ylva; Lindqvist, Anna

    2014-01-01

    Background Increased prevalence of obesity in children- and young adults and risk for diseases related to obesity will increase the burden on medical care. It is important to identify early risk factors that can be noticed by nurses in the daily work. Aim The aim was to investigate whether children- and young adults themselves perceive overweight as a problem and if there was a difference in the measured activity levels between overweight children- and young adults in families with different ...

  13. Barn och bokstavsinlärning i olika pedagogiska verksamheter. : Exemplen: Montessori, Reggio Emilia samt kommunal skola

    OpenAIRE

    Andersson, Sofie

    2011-01-01

    Sammandrag Syftet med mitt arbete är att jämföra hur bokstavsinlärning kan se ut i en Montessori förskoleklass, Reggio Emilia-inspirerad förskoleklass samt en årskurs etta i en kommunal skola. Jag vill ta reda på om det finns tydliga likheter/skillnader mellan de olika verksamheterna och hur det påverkar barnets fortsatta läs- och skrivinlärning. Jag har utfört 15-minuters observationer i de tre olika verksamheterna för att själv vara med och uppleva miljön samt se hur olika inlärningstillfäl...

  14. Barns möte med institutionaliserad undervisning och dess innebörder för demokratiskt medborgarskap

    Directory of Open Access Journals (Sweden)

    Johan Liljestrand

    2010-01-01

    Full Text Available Children’s encounters with institutionalized teaching and theirimplications for democratic citizenship. The aim of this article is to study children’s early socialization to institutionalized teaching practices and its consequences for democratic citizenship. The data on which the study is based consist of recordings from a group of 5-year-olds at a preschool and from a preschool class. The results show that a recurring pattern in teaching practices is that curricula are closely linked to the knowledge and experiences of the teachers, with few connections with the lifeworld of the children. If institutionalized teaching is to support democratic citizenship,it is suggested that children’s perspectives and experiences must be seen as an important point of departure.

  15. Bättre beslut : en studie av socialsekreterarnas handläggning av omhändertagande av barn

    OpenAIRE

    Claezon, Ingrid

    1987-01-01

    This study treats the problems that the social worker (the child welfare worker) is faced with, when deciding to take a child into compulsory care. Empirical data (with particulars of the children and parents involved) covering the public child care at a local authority, was collected from its records and by means of interviews. Data concerning the social workers was obtained through observation, interviews and questionnaires. Out of 166 new child care clients during one year, 77%were teenage...

  16. "Electric Power for Rural Growth: How Electricity Affects Rural Life in Developing Countries," by Douglas F. Barnes. [Book Review].

    Science.gov (United States)

    Lodwick, Dora G.; McIntosh, William A., Ed.

    1989-01-01

    Reviews a book assessing the effects of central grid rural electrification on the social and economic development of 192 communities in India and Colombia. The study examines the impact on agricultural productivity (through increased irrigation), the quality of life of women and children, business activities, and regional inequities. (SV)

  17. What do predators really want? The role of gerbil energetic state in determining prey choice by Barn Owls.

    Science.gov (United States)

    Embar, Keren; Mukherjee, Shomen; Kotler, Burt P

    2014-02-01

    In predator-prey foraging games, predators should respond to variations in prey state. The value of energy for the prey changes depending on season. Prey in a low energetic state and/or in a reproductive state should invest more in foraging and tolerate higher predation risk. This should make the prey more catchable, and thereby, more preferable to predators. We ask, can predators respond to prey state? How does season and state affect the foraging game from the predator's perspective? By letting owls choose between gerbils whose states we experimentally manipulated, we could demonstrate predator sensitivity to prey state and predator selectivity that otherwise may be obscured by the foraging game. During spring, owls invested more time and attacks in the patch with well-fed gerbils. During summer, owls attacked both patches equally, yet allocated more time to the patch with hungry gerbils. Energetic state per se does not seem to be the basis of owl choice. The owls strongly responded to these subtle differences. In summer, gerbils managed their behavior primarily for survival, and the owls equalized capture opportunities by attacking both patches equally. PMID:24669722

  18. Nestling barn owls beg more intensely in the presence of their mother than in the presence of their father

    OpenAIRE

    Roulin, Alexandre; Bersier, Louis-Félix

    2008-01-01

    Nestling begging behaviour may be an honest signal of need used by parents to adjust optimally both feeding rate and within-brood food allocation. Although several studies showed that mothers and fathers can be differentially responsive to nestling begging behaviour with one parent showing a stronger tendency to feed the offspring that beg the most, little information is yet available on whether offspring beg for food at different intensities from the mother than father. In the present study,...

  19. Farm-level risk factors for the presence of Salmonella in 89 Alberta swine-finishing barns

    OpenAIRE

    Rajić, Andrijana; O’Connor, Brendan P.; Deckert, Anne E.; Keenliside, Julia; McFall, Margaret E.; Richard J Reid-Smith; Dewey, Catherine E.; Scott A McEwen

    2007-01-01

    This study investigated potential risk factors for the presence of Salmonella on 89 Alberta swine-finishing farms with the use of a questionnaire. Salmonella status was regressed on each fixed effect in a logistic mixed regression model, with farm as the random effect. Eleven variables were significant at the 10% level: farm type, number of square feet per pen, number of pigs per pen, source of feed, ration type, dust control measures, cat presence, reported effective mouse-control measures, ...

  20. Vegetative environmental buffers and exhaust fan deflectors for reducing downwind odor and VOCs from tunnel-ventilated swine barns

    Science.gov (United States)

    Scientists have investigated methods for reducing odor emissions from livestock buildings for decades, yet few technologies have proven effective. Vegetative Environmental Buffers (VEB), which are specially designed combinations of trees, shrubs and grasses, have shown promise in recent years for r...

  1. No Place to Call Home: The 1807-1857 Life Writings of Caroline Barnes Crosby, Chronicler of Outlying Mormon Communities

    OpenAIRE

    Lyman, Edward Leo; Payne, Susan Ward; Ellsworth, S. George

    2005-01-01

    Caroline Crosby's life took a wandering course between her 1834 marriage to Jonathan Crosby and conversion to the infant Mormon Church and her departure for her final home, Utah, on New Year's Day, 1858. In the intervening years, she lived in many places but never long enough to set firm roots. Her adherence to a frontier religion on the move kept her moving, even after the church began to settle down in Utah. Despite the impermanence of her situation, perhaps even because of it, Caroline Cro...

  2. Hvordan fastholdes deltagere i nuværende danske mor-barn kohorter, så frafald mindskes?

    DEFF Research Database (Denmark)

    Hansen, Jane Søborg; Terkelsen, Marlene

    2014-01-01

    Background and objective: Since1988,The World Health Organization (WHO) has increased its focus on improving public health, which has derived its focus on improving public health, which has derived a variety of health‐promoting efforts, including an increased focus on Health research in Denmark...... why some participants drop out and why some choose not to participate in a mother-­‐child cohort. This is considered an important subject in order to maintain participants in a mother­‐child cohort, why this thesis seeks to obtain knowledge about the causes of drop-­out, how to retain partcipants and...

  3. Early-Life Telomere Dynamics Differ between the Sexes and Predict Growth in the Barn Swallow (Hirundo rustica)

    OpenAIRE

    Marco Parolini; Andrea Romano; Lela Khoriauli; Nergadze, Solomon G.; Manuela Caprioli; Diego Rubolini; Marco Santagostino; Nicola Saino; Elena Giulotto

    2015-01-01

    Telomeres are conserved DNA-protein structures at the termini of eukaryotic chromosomes which contribute to maintenance of genome integrity, and their shortening leads to cell senescence, with negative consequences for organismal functions. Because telomere erosion is influenced by extrinsic and endogenous factors, telomere dynamics may provide a mechanistic basis for evolutionary and physiological trade-offs. Yet, knowledge of fundamental aspects of telomere biology under natural selection r...

  4. Barn, musik och hälsa. Om självutveckling och känslohantering

    OpenAIRE

    Wrangsjö, Björn; Trondalen, Gro

    2012-01-01

    Music has a value in itself. However, the value and meaning of music is not simply limited to an inherent human aesthetic means of expression or a modality of experience. Music is also well documented in therapy and can be of importance for the promotion of health and wellbeing.This text presents children, music, and health in two ways. Firstly, it addresses the handling of stress focusing affect regulation through music. Secondly, the text investigates the development of self both in a speci...

  5. ADHD och musik : Jobbar skolan med musik som inlärningmetod för barn med ADHD?

    OpenAIRE

    Yngström, Sofia

    2012-01-01

    A pupil with ADHD is constantly getting new impulses and is unable to focus and remain concentration on their task at school. When the pupil loses concentration he or she can often be loud and thereby disturbing all the other pupils in the classroom. One of the reasons for losing their concentration is that these pupils got poor working memory. A recently study shows that working memory can be improved by playing and practice music. A theory that all people have a multiple intelligence that e...

  6. Genetic and environmental components of variation in eumelanin and phaeomelanin sex-traits in the barn owl

    NARCIS (Netherlands)

    Roulin, A; Dijkstra, C

    2003-01-01

    Knowledge of the mechanism underlying the expression of melanin-based sex-traits may help us to understand their signalling function. Potential sources of inter-individual variation are the total amount of melanins produced but also how biochemical precursors are allocated into the eumelanin and pha

  7. Expression of Multiple Sexual Signals by Fathers and Sons in the East-Mediterranean Barn Swallow: Are Advertising Strategies Heritable?

    OpenAIRE

    Yoni Vortman; Safran, Rebecca J.; Tali Reiner Brodetzki; Roi Dor; Arnon Lotem

    2015-01-01

    The level of expression of sexually selected traits is generally determined by genes, environment and their interaction. In species that use multiple sexual signals which may be costly to produce, investing in the expression of one sexual signal may limit the expression of the other, favoring the evolution of a strategy for resource allocation among signals. As a result, even when the expression of sexual signals is condition dependent, the relative level of expression of each signal may be h...

  8. A refined protocol for calculating air flow rate of naturally-ventilated broiler barns based on co2 mass balance

    Directory of Open Access Journals (Sweden)

    Luciano Barreto-Mendes

    2014-01-01

    Full Text Available Este estudio se realizó para evaluar protocolos relativamente simples para el monitoreo de la tasa de ventilación (TV en instalaciones pecuarias con ventilación natural (ENV. Los protocolos de ensayo se aplicaron primero a una instalación de pollos de engorde mecánicamente ventilada (EMV, donde TV se estimó con mayor precisión y luego se utilizaron para calcular la TV en la ENV. Las concentraciones de CO2 se midieron con dos esquemas de muestreo diferentes: (S1 la media de las mediciones al interior y a lo largo de la longitud de la instalación a dos alturas de 0,5 m y 1,5 m del suelo; y (S2 igual que la anterior pero con las mediciones de concentración fueron realizadas únicamente a 0,5 m del suelo. La tasa de producción de CO2 metabólico dinámico de las aves se predijo con dos algoritmos diferentes: (A1 el mantenimiento constante durante los periodos de luz y oscuridad, y (A2 que varía con la actividad de los animales sobre una base horaria. Los resultados demostraron que la combinación de S2 con A1 o A2 presentó la mejor estimación de TV en el ENV.

  9. Att fånga komplexiteten i små barns lärande: En metodologisk reflektion

    Directory of Open Access Journals (Sweden)

    Camilla Björklund

    2010-04-01

    Full Text Available The aim of this article is to discuss methodological issues that appear as video technology is being used more frequently in research on early childhood. Research with a video camera as a tool for collecting data has made it possible to more thoroughly interpret and understand children's experiences and learning. One video episode may be interpreted from several different perspectives, which makes the research elusive and sets claimson validity, on the other hand it strengthens the interpretation of the variety in the learning processes due to the opportunity to bring forth the complexity in children's spontaneous learning activities. In this article the concept of videography in research on early childhood education is discussed concerning its methodical and methodological possibilities and limitations.

  10. Intelligenstest i folkeskolen og betydningen for, hvad det vil sige at være 'et barn'

    DEFF Research Database (Denmark)

    Christensen, Gerd; Bendixen, Carsten

    Emnet for denne artikel er de måder, hvorpå testning af elevernes evner og intelligens igennem de seneste godt hundrede år har fået en placering i skolens praksis og herigennem har bidraget til at definere, hvad det vil sige at være ’et barn’. Med analytisk afsæt i Michel Foucaults forståelse af...... i den danske folkeskole. I artiklen vil vi følge den bevægelse, som vi med Foucault mener at kunne identificere, fra intelligenstestens ydre objektiverende (genstands-gørende) blik til selvevalueringens indre disciplinerende blik, hvor ’intelligens’ (uanset antal og form) bliver et spørgsmål om...

  11. En het potatis. Om mat och måltider i barn- och tonårsfamiljer

    OpenAIRE

    Sellerberg, Ann Mari

    2008-01-01

    A hot potato: food and meals in families with small children and teenagers. Introduction, with aims and hypothesis The project ‘Konsumenters problemlösningar på livsmedelsmarknadens nya arenor. Matinspiration under tidspress’ [‘Consumers’ problem-solving/solution to the food market’s new arenas: food inspiration against the clock’] initially addressed the following issue: shopping for food and planning the day’s meals are ongoing, problem-solving processes, and those who are res...

  12. Norske kostholdsanbefalinger av mettet fett, med fokus på anbefalinger om fett i melk til barn : en litteraturstudie

    OpenAIRE

    Bjørgum, Bente

    2015-01-01

    I sin begynnelse var myndighetenes kostholdsanbefalinger basert på å beskytte befolkningen mot ernæringsmangler og underernæring. Hypotesen om at for mye fett i kostholdet, og spesielt mettet fett gir økt risiko for utvikling av hjerte- og karsykdommer har påvirket kostholdsanbefalingene i Norge siden 1970 tallet og helt fram til i dag. Også livsstilssykdommer som diabetes type 2, kreft, fedme og metabolsk syndrom var satt i sammenheng med bruk av fett, og spesielt mettet fett i kosthol...

  13. DAt-Kon – et verktøy for differensiering av atferds- og konsentrasjonsvansker hos barn

    OpenAIRE

    Stray, Torstein

    2013-01-01

    DAt-Kon is a Norwegian assessment tool for behavioral and concentration problems in children as described by parents and close guardians in the home and school setting. The term ‘DAt-Kon’ is an acronym for ‘Differentiation of behavioral and concentration problems’. The tool, which has been developed by the present author, was designed for primary use within the municipality based Educational and Psychological Service (PPT). The most important task for the PPT is to provide e...

  14. Barn med övervikt : BVC-sjuksköterskors arbetssätt - en kvalitativ intervjustudie

    OpenAIRE

    Andersson, Sara

    2015-01-01

    Obesity is an international as well as a national problem. In Sweden one of five four-year-olds are obese. Child health care nurses work from both a population perspective and a family perspective. The child health care centre is an arena that can make different to the obesity problem in society, by offering support to parents of children at risk for obesity or with diagnosed obesity. The purpose of the study is to describe the child health care nurses clinical practice with parents of childr...

  15. Arduino plataforman oinarritutako indoor mikrobot esploratzaile baten diseinu eta eraikuntza

    OpenAIRE

    Inchauspe Berasain, Anita

    2016-01-01

    Arduino plataforma erabiliaz, hiru funtzio betetzen dituen barne errobot esploratzaile bat sortu da. Funtzioak honakoak dira; oztopoak gainditzen dituen errobot mugikorra, urrunetik gidatutako errobota eta barne lokalizazio sistema.

  16. Odor control in swine buildings: recycle flush vs. automated scraper

    Science.gov (United States)

    A research project was conducted to compare odor concentrations in exhaust of traditional flush barns and barns equipped with automated scrapers. The study was conducted at commercial tunnel-ventilated swine barns in northwest Missouri. Odor samples were collected from the barn exhaust in polyvinyl ...

  17. Barn med språkstörning möter svenskämnet i skolan : föräldrars berättelser

    OpenAIRE

    Lindqvist, Jessica

    2012-01-01

    The overall aim of this study is to clarify the situation in school for children with language disorder from the parents’ perspective. Data were collected through five interviews with parents who have children of different ages and with various diagnosis within the language disorder spectra. A qualitative method based on a narrative inquiry was used and each interview was based on a interview guide with the following themes: the child’s difficulties, starting school, the school’s pedagogy, ho...

  18. Tid till att bli svensk: En studie av mottagandet av nyanlända barn och familjer i den svenska förskolan

    Directory of Open Access Journals (Sweden)

    Johannes Lunneblad

    2013-05-01

    Full Text Available This paper is from a study about the integration of young refugee children and their families in Sweden. The preschool has here a special responsibility in this mission for children in the age 1-5. The setting for the study is a multiethnic area located on the outskirts of the city. Methodologically an extended case is used. The study has so far been conducted during a period of 14 months doing fieldwork 1-2 days a week. The analyse focus on how the educators educate practice and talk about how the immigrant parents raise and foster their children. This is described as part of a wider ambition to integrate immigrants in Swedish society.

  19. Introduktion av mat till barn som ammas : Vad BVC ger för information och hur föräldrar gör

    OpenAIRE

    Tufvesson, Ulrika

    2009-01-01

    In 2001 the World Health Organization (WHO) issued a revised global recommendation for exclusive breastfeeding for a child ´s first six months. The aim of this study was to investigate what information parents receiving from the Child Health Care about introduction of solids to breastfed infants and if they follow the recommendation. A further aim is to document reasons for introduction of solids at the selected time and describe what food parents start with. The method has a descriptive and ...

  20. Et løfte om inkludering: Barnehagens rammer for samhandling mellom hørselshemmede og hørende barn i barnehagen

    Directory of Open Access Journals (Sweden)

    Ann Elise Kristoffersen

    2013-10-01

    Full Text Available In Norway today, most deaf children are in their local nursery school together with hearing children. To facilitate inclusive settings where deaf and hearing children can interact on equal terms require knowledge about deafness and the needs of these children. This study shows that nursery schools have challenges in developing such inclusive settings especially concerning knowledge and competence. We discuss how the framework for the nursery school curricula, programs and expertise may impact deaf children’s opportunities for collaboration in significant literacy events.

  1. Pluralistisk religionsundervisning og egengjøring som ideal. Hva kan vi lære av erfaringene til barn med hindubakgrunn?

    Directory of Open Access Journals (Sweden)

    Tove Nicolaisen

    2015-12-01

    Full Text Available The aim of this article is to contribute to the development of a more pluralistic Religious Education. The Norwegian RE teaching in state schools is meant to be “objective, critical and pluralistic”. A project about Hindu children’s experiences with the Norwegian subject “Religion, Philosophies of Life and Ethics” revealed constructs of normality in Religious Education. These normality constructs are based on Western ideas about religion. The findings from the project provide specific knowledge of the children's agency, but this knowledge has also raised critical questions about normality constructs and laid the groundwork for a larger discussion of issues related to children and religious education more generally. The article presents some of the children’s experiences, including the concept of religion, concepts of the divine and the relation between faith and religious practice. The analyses revealed that the children often represented an alternative or oppositional discourse and that the children's positioning themselves could challenge "RE-normality" by representing inclusive attitudes to other religions, expressing complex understandings of the divine and representing approaches to religious practice that differed from the dominant discourse. From this point of departure the article discusses approaches that can contribute to a more pluralistic and fair teaching and avoid othering and exoticism. The approaches are inspired by Homi Bhabha’s “third space”, Edward Soja’s “spatial theory”, “visual culture” from art history, narrative theory and dialogical approaches.

  2. RESENHA: GOURINAT, J. B.; BARNES, J. (Org..Ler os Estoicos. Paula S. R. C. Silva (Trad.. São Paulo: Loyola, 2013.

    Directory of Open Access Journals (Sweden)

    Aldo Dinucci

    2014-02-01

    Full Text Available A Loyola acaba de lançar a tradução da obra Lirelesstoïciens, publicada originalmente em francês pelas PressesUniversitaires de France, em2009.  Os organizadores são reconhecidos pesquisadores da área, produzindohá muito excelentes trabalhos sobre estoicismo.

  3. Barn och sociala medier : Hur sociala medier påverkar elever och skolans arbete mot kränkande behandling

    OpenAIRE

    Sjöstedt, Julia

    2014-01-01

    This work is about the rights of children, how students use social media and how effective teachers are using social media in their work against abusive treatment. The purpose of this work is to examine what students have rights in school, what and how students use social media and how schools and teachers are working to prevent the abuse that takes place over the internet and via mobile phones. The method used to investigate this is partly a survey of students in grades five and six at four ...

  4. Upplevelsen av hot och våld : En kvalitativ studie med personal som arbetar på barn och ungdomspsykiatrisk akutmottagning

    OpenAIRE

    Djerf, Anna; Kjell, Gustafsson

    2013-01-01

    The aim of the study was to examine individual staff experience and management of threats and violence in the acute psychiatric department for children and teenagers in Uppsala. Previous research shows that the experience of threats and/or violence is individual, and that it is difficult to distinguish between these concepts. Research shows that it is particularly vulnerable to work in psychiatry when mental illness is a cause when threats and violence occurs. Threats and violence can result ...

  5. Sensitiv responsivitet i barnehagen: En kvalitativ studie av hvordan profesjonell omsorg i barnehagen påvirkes av personalets empatiske identifikasjon med og relasjoner til det enkelte barn

    OpenAIRE

    Selmer-Olsen, Maria

    2013-01-01

    The topic of this thesis is sensitive responsiveness in Early Childhood Education and Care. I have examined how professional caregivers’ relationships with individual children have an impact on the care provided. The problem is as follows: How is the professional care in Early Childhood Education and Care influenced by the staff's empathic identification and relationships with each child? To answer the research question, I conducted a qualitative study using a hermeneutic approach, based on a...

  6. Effects of two different rearing systems (organic and barn) on production performance, animal welfare traits and egg quality characteristics in laying hens

    OpenAIRE

    Luigi Guidobono Cavalchini; Susanna Lolli; Giuseppe Vezzoli; Valentina Ferrante

    2010-01-01

    Alternative housing systems for hen eggs production represents clear evidence of the trend in animal housing and husbandry towards extensive rearing methods. Consumer demand is oriented towards healthy foods controlled not only under a safety point of view, but also under a welfare assessment of the animals’ living conditions. Among the different alternative systems deep litter and organic production in recent years have been improved in Italy. The aim of this study was to evaluate whet...

  7. Yogaträning för barn med cerebral pares : ledrörlighet och muskelelasticitet i nedre extremiteterna

    OpenAIRE

    Isakson, Erika

    2015-01-01

    Background: Movement and posture are always affected in children with cerebral palsy (CP). Motor symptoms vary in degree and severity, however a decreased joint mobility in the lower extremities is common. With increasing age, the decreased range of motion becomes more prominent and can lead to further impairments. There is a lack of evidence for ordinary physiotherapeutic treatment methods in order to maintain and increase range of motion as well as to prevent decreased joint mobility. Aim: ...

  8. A shortened barnes maze protocol reveals memory deficits at 4-months of age in the triple-transgenic mouse model of Alzheimer's disease

    OpenAIRE

    Attar, A; Liu, T.; Chan, WTC; J. Hayes; Nejad, M; Lei, K; Bitan, G.

    2013-01-01

    Alzheimer's disease is a progressive neurodegenerative disease that manifests as memory loss, cognitive dysfunction, and dementia. Animal models of Alzheimer's disease have been instrumental in understanding the underlying pathological mechanism and in evaluation of potential therapies. The triple transgenic (3xTg) mouse model of AD is unique because it recapitulates both pathologic hallmarks of Alzheimer's disease - amyloid plaques and neurofibrillary tangles. The earliest cognitive deficits...

  9. Diane Barnes, Brian Schoen, and Frank Towers, eds. The Old South’s Modern Worlds: Slavery, Region, and Nation in the Age of Progress.

    OpenAIRE

    Maragou, Helena P.

    2013-01-01

    The Old South’s Modern Worlds: Slavery, Region, and Nation in the Age of Progress, is a volume of essays that aims to question traditional views of Southern history and culture.  Positioning itself against popular stereotypes and a vast body of professional scholarship that promotes conceptualizations of the antebellum South as unprogressive, insular, and trapped in its own traditions, The Old South’s Modern Worlds rewards its reader with a broad-ranging examination of the South’s negotiation...

  10. Den komplexa väven Att organisera för barns övergångar till och från förskoleklass

    OpenAIRE

    Helena Ackesjö

    2015-01-01

    This study focuses on how children's transitions to and from preschool classes are organized in different schools. Principal’s arguments for this organization were sought via a web-based survey and analyzed using the frame factor theory in addition to theories of practical sense and the concept of continuity. The results show that children tend to make more transitions between social communities the younger they are. The distribution of the principal’s answers show that the majority of them, ...

  11. Närhet : Samspel och delaktighet i förskolan för barn med utvecklingsstörning

    OpenAIRE

    Luttropp, Agneta

    2011-01-01

    The main purpose was to study if children with intellectual disability interact or participate differently with preschool staff and peers compared to their non-disabled peers and how preschool teachers experience interaction and participation for children with intellectual disability and children with typical development. The results from study I show that there are more similarities than differences between the groups. There are no differences between the groups neither in engagement nor in ...

  12. Musik som ett specialpedagogiskt verktyg för barns språkutveckling : Fem sydafrikanska pedagogers syn på musik som pedagogiskt verktyg

    OpenAIRE

    Johansson, Lina

    2014-01-01

    The purpose of this essay is to study if and how five South African educators work with music as a special pedagogical tool in children's language development. To achieve the purpose of this study, two research questions were created. As method, interviews of a qualitative character were chosen.  The aim of the method is to give the educators the opportunity to think about and use their own experience before answering the questions. The result shows that the South African educators are not us...

  13. Musik och språk i förskolan ! : en intervjustudie om pedagogers arbete med musik i syfte att utveckla språket hos barn.

    OpenAIRE

    Hellström, Sofia

    2006-01-01

    Abstract The Government´s guidelines found in the curriculum for pre-schools, recommend that music should be an important resource for children. To stimulate children´s language is also an important part of this curriculum. It is every teacher`s proffessional duty to ensure that these guidelines are followed. Language is of unparallel importance in assisting an individual to grow and to function within a society. In my work about music and languages in pre-school the purpose is to investigate...

  14. Kuvøsesang : effekt av sang og lyrespill på premature barn i neonatal intensiv enhet på sykehus : en kvantitativ studie

    OpenAIRE

    Rundgren, Anette Cicilie

    2013-01-01

    Sammendrag Bakgrunn: Premature utsettes jevnlig for situasjoner og prosedyrer som er forbundet med smerte, stress og mistrivsel. Eksempler på dette er lys og lyder, helstikk for blodprøver, innleggelse av vene- og arteriekanyler, suging i nese og svelg, respiratorbehandling, CPAP behandling, diverse alarmer osv. Metode: Studien er en pilotstudie som undersøker om sang og lyrespill kan avlede og redusere symptomer på smerte/ubehag i ulike prosedyrer som øyeundersøkelse, blodprøver og utf...

  15. Logopedisk intervention för barn med språkstörning ur ett historiskt perspektiv : en uppföljningsstudie

    OpenAIRE

    Falk, Lena; Åhsberg, Anna

    2011-01-01

    One of the largest work areas for speech and language pathologists is intervention for children with speech and language disorders. The purpose of the present study was to describe and analyze the clinical management of language impairment in children by studying and comparing medical records and literature from the years 2000 and 2009. The present study is a sequel to two previously published papers by Christina Samuelsson (1997; 1999), in which medical records and literature from the 1920-,...

  16. Sub-lethal effects of the anticoagulant rodenticides bromadiolone and chlorophacinone on breeding performances of the barn owl (Tyto alba in oil palm plantations

    Directory of Open Access Journals (Sweden)

    Salim Hasber

    2014-12-01

    Full Text Available Štúdia skúma vplyv prvej generácie antikoagulacného rodenticídu chlórofacinonu a druhej generácie bromadiolonu na parametre hniezdenej úspešnosti plamienky driemavej na plantážach palmy olejovej. Založili sa tri pokusné plochy: jedna ošetrená chlórofacinonom, dalšia s bromadiolonom a tretia kontrolná bez rodenticídu. Na chemicky ošetrených plochách sa pocas hniezdnej sezóny rodenticíd vykladal štyri krát. Obsadenost hniezdnych búdok, velkost znášky, pocet vyliahnutých mládat a podiel vyletených mládat plamienky sa zistovali v týždenných intervaloch. Z obsadených hniezd sa tiež v týždenných intervaloch zbierali vývržky. Z výsledkov vyplýva, že podiel obsadených búdok bol štatisticky významne vyšší na chemicky neošetrenej ploche než na plochách s vyloženou otrávenou návnadou. Rovnako aj parametre hniezdenia - velkost znášky, pocet vyliahnutých mládat a pocet vyletených mládat - dosahovali vyšších hodnôt na neošetrenej ploche. Z výsledkov z vysokoúcinnej kvapalinovej chromatografie (HPLC vyplýva, že 20,56 % (priemerná koncentrácia rezíduí: 1 ,335 ± 0,073 lg/g a 28,89 % (priemerná koncentrácia rezíduí: 0,777 ± 0,032 lg/g z vývržkov zozbieraných v rodenticídom ošetrených plochách obsahovalo rezíduá bromadiolonu alebo chlórofacinonu. Priemerná velkost znášky a pocet vyletených mládat negatívne korelovali s priemernou koncentráciou rezíduí rodenticídov vo vývržkoch a s relatívnym podielom vývržkov obsahujúcich tieto rezíduá (R2 k 0.44, P 0.05. Zovšeobecnujúc možno konštatovat, že cím vyššie bolo množstvo chemických rezíduí vo vývržkoch, tým nižšie boli parametre hniezdnej úspešnosti

  17. Katten också! : Exponering för pälsdjur och dess konsekvenser för pälsdjursallergiska barn

    OpenAIRE

    Egmar, Ann-Charlotte

    2005-01-01

    In Sweden about 40-50 % of the population has furred pets at home, primarily a cat or a dog, and about 1520% of the population is allergic to pets. Allergic symptoms may be provoked among pet allergic individuals by direct or indirect exposure to furred pets. For a number of children with allergic disease the quality of life may be impaired as a consequence of their disease. The overall aim of this thesis was to examine: 1) exposure to pet allergens in relation to keeping of...

  18. DIARE- som årsak til sykdom og død hos barn under 5 år i u-land

    OpenAIRE

    2006-01-01

    Abstract More than one billion diarrhoea episodes occur every year among children younger than 5 years of age in socioeconomically developing countries causing 2 to 2.5 million deaths. Information available from the 1980s to date suggests that the overall frequency of childhood diarrhoea has remained relatively constant, but with a steady decline of diarrhoea-assosiated deaths, mainly as a consequence of the introduction of Oral Rehydration Therapy (ORT). The interaction between malnutrit...

  19. Efectos de la restricción comportamental crónica sobre el aprendizaje de una tarea espacial en el laberinto circular de Barnes

    Directory of Open Access Journals (Sweden)

    Alejandro Múnera

    2005-03-01

    Full Text Available Estudios anteriores utilizando modelos de memoria espacial basados en la natación forzada o la deprivación alimentaria han mostrado que el estrés por inmovilización aplicado de forma crónica (21 días afecta el aprendizaje en términos de la velocidad para aprender la tarea y del número de errores cometidos. Igualmente, se ha observado que el estrés deteriora la ejecución cognitiva despúes de largos intervalos y la mejora a intervalos cortos (despuesta adaptativa.

  20. ”En ny hverdag”. Mødres opplevelse av hverdagen med et prematurt barn, og støtten ved en ressurshelsestasjon

    Directory of Open Access Journals (Sweden)

    Solveig Sørby

    2015-12-01

    Full Text Available The study explores mothers’ of premature infants experience of how health centers especially adapted for families with premature infants can help them to cope with everyday life after discharge from a neonatal intensive care unit. Background: Premature children are at higher risk for physical and mental health problems, which makes parenting demanding. The transition between hospital and home is a challenging period where parents may need extra support to cope with everyday life. Method: Nine mothers of premature infants receiving follow-up care at a health center especially adapted for families with premature infants were interviewed. Data were analyzed by Kvale and Brinkmann’s guidelines for text analysis. Findings: The study revealed that mothers of premature infants need to adapt to a daily life with both challenges and joys. Mothers’ sense of coping in everyday life is affected by the public health nurse’s knowledge of and experience with premature infants. Conclusion: Mothers of premature infants experience a challenging daily life after discharge from neonatal intensive care unit. A health center especially adapted for families with premature infants can help mothers cope with everyday life after discharge through availability, flexibility, expertise, facilitating a social network and focusing on mothers’ own experience of their daily life.

  1. The hot gas cleaning with multifunctional sorbent technique at 1-20 bar pressure; Kaasujen kuumapuhdistus multifunktionaalisella sorbenttitekniikalla 1-20 bar:n paineessa

    Energy Technology Data Exchange (ETDEWEB)

    Jaanu, K.; Orjala, M.; Paakkinen, K.; Rantanen, J. [VTT Energy, Espoo (Finland)

    1996-12-01

    The aim of the research was to study the simultaneous hot gas cleanup of alkali metals and selected heavy metals under pressure of 1-20 bar using multifunctional sorbent technology, to investigate effects of it on sulfur and nitrogen emissions and to improve the total efficiency of the hot gas cleanup method by reducing the concentrations of harmful components to the level required by the gas turbines. The research has started in the year 1993. The optimization of the test facility at 900 deg C and 20 bar has been accomplished, as targeted. The main topics have been the alkali metals. The main targets of the year 1994 was to concentrate on the research of sorbent effectiveness to remove the impurities like alkalies etc. from the flue gas. Furthermore researches on kinetics and mechanisms were started. The results showed that the developed multifunctional sorbent are highly effective to remove alkalies from the flue gas. Also a mechanism for alkali and lead sorption was proposed. The main topics for 1995 were scheduled to be the completion of the kinetic and mechanical studies and the modelling and the estimation of the data for the pilot scale unit. The kinetic data for one sorbent has been completed and a model for that has also been developed. The measured and calculated results are indicating that the developed multifunctional sorption process is highly effective to remove alkalies and heavy metals such as lead and cadmium from high-temperature combustion gases. The tests are carried out mainly using the pressurized entrained flow reactor of VTT Energy, located in Jyvaeskylae, and in the university of Arizona, where the tests are conducted under atmospheric pressure. Some comparisons of the results might be made with those of Aabo Akademi during the future modelling. 3. The results are applied to purification of the hot gases in boilers, power and process industry. (Abstract Truncated)

  2. Barns meningsskapande i ett projekt om biologisk mångfald och ekologi
    Children’s meaning making in biodiversity and ecology

    OpenAIRE

    Cecilia Caiman; Iann Lundegård

    2015-01-01

    Biodiversity loss is becoming an increasingly alarming issue that has significance in the discussion about young children’s learning in science. This article, based on a pragmatic perspective, analyses a group of children and teachers when exploring animals in a preschool project concerning biodiversity. It examines the ways in which children create meaning of the content, the order in which the content emerges, and what impact teachers have on how the process develops. Initially, the results...

  3. Barns meningsskapande i ett projekt om biologisk mångfald och ekologiChildren’s meaning making in biodiversity and ecology

    Directory of Open Access Journals (Sweden)

    Cecilia Caiman

    2015-03-01

    Full Text Available Biodiversity loss is becoming an increasingly alarming issue that has significance in the discussion about young children’s learning in science. This article, based on a pragmatic perspective, analyses a group of children and teachers when exploring animals in a preschool project concerning biodiversity. It examines the ways in which children create meaning of the content, the order in which the content emerges, and what impact teachers have on how the process develops. Initially, the results reveal that the organisms’ appearances and movements received morphological and physiological explanations. Further, the knowledge was gained profoundly in a manner which has similarities with ecological and evolutionary ways of explaining biological phenomena. The teachers’ utterances were few, but significant, by raising productive questions in close relation to what the children anticipated they embraced a listening approach.

  4. Jag vet vad du tänker : Mentaliseringsförmågan hos typiskt utvecklade barn i 6-7års åldern

    OpenAIRE

    Henriksson, Marie-Louise; Troedsson, Johan

    2012-01-01

    Mentaliseringsförmåga innebär förmågan att ta en annan persons perspektiv, att förstå hur någon annan tänker och känner. Det innebär även att förstå de egna tankarna och reaktionerna relaterat till andra personers tankar och känslor. Det är viktigt med en välfungerande mentaliseringsförmåga för att kunna samverka med andra individer och sin omgivning på ett pragmatiskt och ändamålsenligt sätt. Det finns flera olika förmågor som kan vara viktiga för mentaliseringsförmågan, i vilken grad de påv...

  5. "Ett arbete som berör" En kvalitativ studie om barns upplevelser kring massage och beröring i skolan.

    OpenAIRE

    Arenroth, Helena; Johansson, Sophia

    2000-01-01

    Arbetet syftar till att fördjupa vår egen kunskap om massage i skolan. Vi vill påvisa huruvida våra tankar kring massage i skolan stämmer överens med den uppfattning som elever och lärare har. Vårt arbete innefattar litteraturstudier samt en empirisk undersökning. Huvuddelen av arbetet bygger dock på undersökningen som utgörs av både en kvalitativ och kvantitativ del. Vi har försökt att få svar på om elevernas beteende gentemot varandra och mot läraren förändras genom ett aktivt arbete med m...

  6. Beardslees preventiva familjeintervention för barn till föräldrar med psykisk sjukdom. Svenska familjers erfarenheter

    OpenAIRE

    Pihkala, Heljä

    2011-01-01

    It has been known for many years that the children of parents with mental illness run a high risk of developing psychiatric and other problems both during their childhood and later in adulthood. Meeting and providing support for the patients’ children has, however, been a neglected area in adult psychiatry until today. Recent supplementary legislation in the Nordic countries obligates the professionals in health services to take account of the needs for information and support of the children...

  7. "En ny hverdag" : mødres opplevelse av hverdagen med et prematurt barn, og støtten ved en forsterket helsestasjon

    OpenAIRE

    Sørby, Solveig

    2014-01-01

    Purpose: The purpose of this study was to explore how a child health centre, with expertise in premature infants, can improve how mothers manage their daily life with a preterm child. Background: Premature infants has a higher risk for several health issues, which can be challenging for the parents. The transition between hospital and home is crucial, as the parents have to handle the full responsibility for their child, for the first time. In this period, the child health c...

  8. ”En ny hverdag”. Mødres opplevelse av hverdagen med et prematurt barn, og støtten ved en ressurshelsestasjon

    OpenAIRE

    Solveig Sørby; Liv Fegran

    2015-01-01

    The study explores mothers’ of premature infants experience of how health centers especially adapted for families with premature infants can help them to cope with everyday life after discharge from a neonatal intensive care unit. Background: Premature children are at higher risk for physical and mental health problems, which makes parenting demanding. The transition between hospital and home is a challenging period where parents may need extra support to cope with everyday life. Method: Nine...

  9. Möjligheternas arena? : Barns och ungas samtal om tjejer, killar, känslor och sexualitet på en virtuell arena

    OpenAIRE

    Löfberg, Cecilia

    2008-01-01

    Computer mediated communication (CMC) has created new arenas for social interaction in contemporary society, also for children and young people. This raises questions about how these arenas are used by children and young people. Drawing on the sociology of childhood, this thesis addresses children’s social interaction on a website designed for young people, where issues of masculinity, femininity, emotions and sexuality are discussed. The general aim is to explore the construction of meaning ...

  10. Energi- och näringsintag hos 1 år gamla barn : En tvärsnittsstudie genomförd på 1 år gamla barn med hög respektive låg risk för utveckling av övervikt och fetma med fokus på energi- och näringsintag

    OpenAIRE

    Blomqvist, Johanna; Karlsson, Patrik

    2012-01-01

    Obesity is a growing problem worldwide among children and adolescents. Previous research has shown that food habits and weight in order children with high and low risk of developing obesity (based on parental BMI) differs between the two groups. It has also been shown that the mother affects the child´s food habits and weight.

  11. Into the Curriculum. Health/Science: Communicable Diseases [and] Reading/Language Arts/Science: A Comparison of Animals in Fables to Their Real Life Counterparts [and] Science: Water Experiments [and] Science: Stormy Weather [and] Social Studies: Who Lives in the Barn? Who Works in the Barn? [and] Social Studies: Exploring the China Syndrome.

    Science.gov (United States)

    Ranz, Laurie K.; Lyons, Christi; Dickerson, Tamara; Sadler, Macie W.

    1999-01-01

    Provides six library media activities that are designed for use with specific curriculum units in health, science, language arts, and social studies. Each activity identifies library media skills and curriculum objectives, grade levels, resources, instructional roles, procedures, evaluation guidelines, and followup activities. (AEF)

  12. Mikilvægt að fá að vera barn meðan maður er barn: reynsla 18-22 ára ungmenna sem alist hafa upp með móður sem er öryrki

    OpenAIRE

    Elsa Sigríður Þorvaldsdóttir

    2010-01-01

    Undanfarin ár hefur mikið verið rætt um stöðu öryrkja og hvort nægilega sé hlúð að þeim. Í vaxandi mæli hafa starfsendurhæfingar fyrir öryrkja eða þá sem hafa þurft að hætta að vinna vegna sjúkdóma eða annarra ástæðna risið upp um land allt land. Minna hefur verið rætt um hvort örorka foreldra hafi áhrif á börn sem alast upp hjá þeim. Tilgangur rannsóknarinnar var auka þekkingu á reynslu ungmenna sem alist hafa upp með móður sem er öryrki. Beitt var aðferðafærði eigindlegra rannsókna og stuðs...

  13. Disease: H00079 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available 24 (2005) PMID:17099035 (marker) Kharitonov SA, Barnes PJ. Exhaled biomarkers. Ch...est 130:1541-6 (2006) PMID:9624291 (marker) Jatakanon A, Lim S, Kharitonov SA, Chung KF, Barnes PJ. Correlat...asthma. Thorax 53:91-5 (1998) PMID:12101782 (marker) Kharitonov SA, Barnes PJ. Bi...omarkers of some pulmonary diseases in exhaled breath. Biomarkers 7:1-32 (2002) PMID:15459674 (drug) Barnes

  14. Analysis of Ammonia and Volatile Organic Amine Emissions in a Confined Poultry Facility

    OpenAIRE

    Dinh, Hanh Hong Thi

    2010-01-01

    The National Air Emission Monitoring Study (NAEMS) project was funded by the Agricultural Air Research Council (AARC) to evaluate agricultural emissions nationwide. Utah State University (USU) is conducting a parallel study on agricultural emissions at a Cache Valley poultry facility. As part of this parallel study, samples of animal feed, eggs and animal waste were collected weekly from three manure barns (designated: manure barn, barn 4 - manure belt and barn 5 - high rise) from May 2008 to...

  15. Dyskalkyli : Normativa data för svenska barn i årskurs 5 och 6 på Dyscalculia Screener och hur testresultat korrelerar med avkodningsförmåga och skolmatematik

    OpenAIRE

    Sahlberg, Anna; Taavola, Lina-Lotta

    2011-01-01

    Dyskalkyli (specifika räknesvårigheter) är en av flera orsaker till matematiksvårigheter. Studier har påvisat samband mellan dyskalkyli och dyslexi och att personer med dyskalkyli har svårt att klara skolmatematiken. Två skilda synsätt förklarar orsaken till dyskalkyli: systemteorin och modulärteorin. Dyscalculia Screener är ett screeningverktyg som bygger på modulärteorin och att dyskalkyli beror på svårigheter med grundläggande antalsuppfattning och ska urskilja personer med...

  16. När man misstänker att barn far illa : En studie av hur professionella inom BVC, förskola och skola förhåller sig till anmälningsplikten

    OpenAIRE

    Östberg, Francesca; Backlund, Åsa; Wiklund, Stefan

    2012-01-01

    The overarching aim of this report was to gain knowledge on how mandated reporters from different professional fields (staff in child health care, pre-school and school)  reason and act in case of child maltreatment suspicion of children 0-12. The principal research method was focus groups (n=3) in which participants were discussing themes in accordance with study objective. The groups were homogenous in terms of professional field affiliation and consisted of 8-9 participants in each group. ...

  17. Föräldrars uppfattningar om förändringar gällande aptit och måltidssituationer hos barn som medicineras mot ADHD vid Habiliteringen vid Uppsala läns landsting

    OpenAIRE

    Samuelsson, Linnea; Berglund, Julia

    2011-01-01

    The aim of this study was to examine if parents, of children diagnosed with ADHD, exprerienced any changes regarding their childrens appetite after starting psycostimulant treatment. Further more the aim was to examine what kind of changes concerning the appetite that were found and if they affected the meal situation as a whole. Method: A questionnaire study was conducted in the spring of 2011. The study included 81 parent’s to children who were enrolled at the Habilitation in Uppsala and me...

  18. Efeitos do peso vivo sobre a comercialização de bezerros de corte em leilões Effects of the live weight on the commercialization of beef calves in auction barn

    Directory of Open Access Journals (Sweden)

    L.F. Christofari

    2010-04-01

    Full Text Available Analisaram-se os efeitos da média de peso vivo de 1.880 lotes de bezerros comercializados em 13 leilões, no Rio Grande do Sul, sobre o valor de venda final por unidade de peso, e caracterizou-se a frequência dos lotes conforme a classe de peso durante as estações de outono e primavera, no período de 2004 a 2006. Os dados foram corrigidos pelo índice geral de preços - disponibilidade interna e analisados por meio de histogramas de frequência e análises de regressão e correlação. O peso vivo influenciou o preço dos bezerros, e a magnitude do efeito foi maior nos anos de grande demanda. Observou-se correlação negativa entre preço e peso dos bezerros na primavera, reflexo da oferta de animais mais pesados, devido aos efeitos de estação do ano ou à maior idade dos bezerros, comparados aos ofertados no outono. Não se observou maior liquidez dos bezerros comercializados no outono em relação aos da primavera. A conjuntura da cadeia da carne bovina e os preços de outras categorias têm grande relação com os preços pagos. A aquisição de animais de menor ou maior peso na ocasião da transação comercial pode auxiliar na redução dos custos que a reposição representa na produção.The effects of the live weight of 1,880 lots of calves marketed in 13 auctions in the State of Rio Grande do Sul, Brazil, on the value of final sale per unit of weight were evaluated, as well as the frequency of the lots according to the weight class during the autumn and spring seasons, in the period from 2004 to 2006, was characterized. The data were analyzed by frequency histograms, regression, and correlation analyses. The live weight is one of the characteristics that influenced the price of the calves; however, the magnitude of the effect was higher in years of great demand. A negative correlation was observed between price and weight of the calves in spring, which were results of the offer of heavier animals, due to the season effects or the oldest age of the calves compared to those presented in the autumn. The chain conjuncture of the bovine meat and the prices of other categories have great relation with the prices paid. Therefore, the acquisition of highter or heavier animals in the occasion of the business deal may help in the reduction of the costs represented by the replacement in the production.

  19. Reservmormor- en extra resurs för barnen på daghemmet : En kvalitativ studie om daghemspersonalens upplevelse av reservmormors betydelse för barn på daghem

    OpenAIRE

    Laahanen, Emma

    2011-01-01

    I detta examensarbete behandlas Folkhälsans ”Reservmormor”-verksamhet. Fokus ligger på hur daghemspersonalen anser att ”Reservmormor”-verksamheten gagnar barnen på daghemmet. Syftet med detta examensarbete är att belysa varför ”Reservmormor”-verksamheten är viktig i dagens samhälle. Till syftet hör att utforska på vilket sätt mor- och farföräldrarna är viktiga för barnen och vad daghemspersonalen anser att reservmormor kan bidra med på daghemmet. I arbetet utreds daghemspersonalens erfarenhet...

  20. "Min fyrhjuling, den går på bensin, inte på mat" : En fokusgruppsstudie kring barns kunskap och reflektioner om den Gröna Påsen i förskolans verksamhet.

    OpenAIRE

    Jonsson, Hanna

    2014-01-01

    Syftet med denna studieär att undersöka hur Gröna Påsen implementeras i förskolans verksamhet utifrån barnens tankar och reflektioner. Syftet är också att ta reda på vad barnen har för kunskap om vad som händer med den Gröna Påsenefteratt sopbilen hämtat denoch dess påverkanför en hållbar utveckling. Att undersöka om barnens erfarenheter och kunskaper kring Gröna Påsen kan kopplas samman med pedagogernas arbeteför att implementera den, är också en del av syftet med denna studie. Den metod som...

  1. “They Played it on Saturday Nights in a Barn.” Gramophone Practices and Self-Made Modernity in Finland from the 1920s to the 1940s

    Directory of Open Access Journals (Sweden)

    Tiina Männistö-Funk

    2013-12-01

    Full Text Available This article studies rural gramophone use in Finland from the 1920s to the 1940s, based on source material of written memories related to the long Nordic tradition of folklore surveys. The characteristic rurality of the Finnish pre-war and war-time society offers an opportunity to study the non-urban appropriation of modern technology and to approach rural modernity as locally produced on the one hand, but crucial to the societal and cultural modernisation processes on the other. The article uses a practice theoretical approach and argues for an understanding of grass-root modernity as a dynamic system of practices combining old and new elements. By scrutinising the material elements, meanings and competencies linked together in rural gramophone practices, the article describes and analyses diverse forms of rural activity and innovativeness around the gramophone, peaking in the popular phenomenon of secret dances during the Second World War. 

  2. Desempenho de telhas de escória de alto forno e fibras vegetais em protótipos de galpões Performance of tiles composed of blast furnace slag and vegetable fiber in prototype barns

    Directory of Open Access Journals (Sweden)

    Maristela N. da Conceição

    2008-10-01

    Full Text Available Busca-se, em todo o mundo, a substituição do cimento amianto por alternativas seguras para o ambiente e para a saúde do trabalhador, além de econômicas, razão por que o uso de fibras vegetais como aglomerado em países tropicais onde estes resíduos são abundantes, tem-se mostrado bastante viável. No presente experimento foram comparadas telhas de cimento amianto pintadas com tinta reflexiva, telhas cerâmicas e telhas compostas de uma matriz à base de cimento Portland CPII 32Z (ABNT NBR-5735, escória de alto-forno (EAF e sílica ativa, reforçadas com fibras de polpa celulósica de sisal (Agave sisalana. Utilizaram-se protótipos de galpões avícolas nos quais o calor produzido pelas aves foi simulado por lâmpadas incandescentes. Para caracterização do ambiente térmico lançou-se mão dos índices de conforto: ITU (índice de temperatura e umidade, ITGU (índice de temperatura de globo e umidade, CTR (carga térmica radiante e entalpia (H em que os resultados demonstraram que as telhas compostas apresentaram comportamento térmico semelhante ao das telhas cerâmicas, podendo ser utilizadas em substituição às telhas de cimento amianto.The substitution of cement asbestos by safer and equally economical alternatives has being searched for throughout the world. The usage of vegetal staple fiber as agglomerate in tropical countries where these residues are abundant has shown it self to be viable. In this study, roofing tiles fabricated with cement base Portland CPII 32Z (ABNT NBR-5735, blast furnace slag (EAF, active silica reinforced with cellulose pulp staple fibers of sisal (Agave sisalana were compared with cement asbestos roofing tiles with white paint and ceramic roofing tiles. Prototypes of poultry facilities were used and lamps simulated the heat produced by the birds. Indices ITU, ITGU, CTR and entalpy (H were employed for the characterization of the thermal atmospheric comfort and the results showed that the alternative roofing tiles were similar to the ceramic tiles and could be used as a substitute for asbestos roofing tiles.

  3. "Glemmer at de ikke er eget kjøtt og blod" : en kasusstudie om tilknytningsrelatert tilrettelegging ogveiledning når små barn flytter i fosterhjem /

    OpenAIRE

    Smeplass, Sigrid Finsland

    2010-01-01

    The purpose of this study was to find out if the child welfare system can get help in a practical method to guide fosterparents in a way that care could promote, and lead to secure attachment of children placed in foster care. The background for this study is based on the theory of attachment from Bowlby. The problem area was confined to the use of “Parent Attachment Diary” and its function as a tool to guide foster parents when they accept infants between the ages of 10 and 28...

  4. Reseña de: Jonathan Barnes, The Presocratic Philosophers; G.S. Kirk, J.E. Raven & M. Schofield, The Presocratic Philosophers; Charles H. Kahn, The Art and Thought of Heraclitus

    OpenAIRE

    Peña, Lorenzo

    1986-01-01

    Los tres libros abordan problemas importantes de la historia de la filosofía griega a través de la filosofía analítica. Los tres tratan de ofrecer interpretaciones de los presocráticos que eviten atribuirles contradicciones; y los tres fracasan en ese intento hermenéutico, aplicando una caridad interpretativa innecesaria. Y es que es racional reconocer grados de existencia y afirmar que hay contradicciones verdaderas.

  5. ”Kan verka skrämmande på små barn.” Våld, sex och historiebruk i tv-serien Trälarna

    Directory of Open Access Journals (Sweden)

    Tommy Gustafsson

    2012-11-01

    Full Text Available This article examines the television adaption and reception of Swedish youth novelist Sven Wernström's series of historical youth novels called Trälarna (“The Thralls” in the late 1970s and early 1980s. The book series as well as the Danish animated televisions series used a noticeable class perspective in order to make comparisons between the condition of slaves in medieval times and Swedish working class of the 19th and 20th centuries. In accordance with the novels, the television series therefore displays a strong moral historical perspective. The analysis in the article focuses mainly on the abundant use of violence and sex as political and pedagogical instruments to promote class consciousness among its child viewers. In contrast to the novels, the television series was able to create more explicit audiovisual images of violence and sex that, in fact, were censored by Swedish state television before it was aired on a child friendly timeslot. Although some scenes in the television series were censored, the final analysis reveals that “The Thralls” can be seen as a rather typical example of the politically and aesthetically radical Swedish children's culture of the 1970's.

  6. Majlis al-‘Ulama’ al-Indūnīsī fī Munādalat al-Barnāmij al-Siyāsī

    Directory of Open Access Journals (Sweden)

    Suwito Suwito

    2014-03-01

    Full Text Available The birth of the Indonesian Ulema Council (MUI, among others, initiated by the New Order. Minister of Religion formed the Indonesian Islamic Propagation Center (WWII in charge of organizing workshop preachers in Indonesia on 26-29 November 1974. Among the results of the workshop consensus is forming MUI.The initiative was in addition to the presence of concerned government organizations 'scholars' to accelerate the implementation of its discretion, as well as outside of Islam similar associations have been formed. General Assembly of the Indonesian Bishops (MAWI for the Ummah Catholics had formed in 1924 and the Communion of Churches in Indonesia (PGI for the Ummah Protestant founded in 1950.Copyright (c 2014 by SDI. All right reserved.DOI: 10.15408/sdi.v2i4.823

  7. CTD cast and zooplankton count data collected in Dabob Bay, Hood Canal, Puget Sound, Washington during twenty-six cruises aboard the CLIFFORD A. BARNES, February 2002 - April 2004 (NODC Accession 0014832)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset contains CTD cast and zooplankton data collected during twenty-six cruises to Dabob Bay, Washington in 2002 - 2004 for the project entitled "Copepod -...

  8. The Beautiful Boy, The Destroyer : Sexradikalers förhandlingar om tidskriften Destroyer – en intervjustudie om anständiga bögar, fula gubbar och sexualiserade barn

    OpenAIRE

    Kerstinsdotter, Reb

    2008-01-01

    Through the collection and analysis of negotiations surrounding the gay magazine Destroyer, the intention of this paper is to identify norms of sexuality within a contemporary sex-radical discourse. These negotiations are collected from interviews with individuals whom, at the time of the inter-view, consider themselves or their politics sex-radical. In order to allow for a more general under-standing of the context in which these negotiations have come about, material about Swedish law is al...

  9. Mellan klient och rättssystem - Tvångsvård av barn och unga ur socialsekreterares perspektiv (Between the client and the legal system - Compulsory care of children and young persons from a social worker perspective)

    OpenAIRE

    Ponnert, Lina

    2007-01-01

    This dissertation focuses on assessments concerning children and young persons in the Social Services. The aim has been to describe and analyse the compulsory care process from a social worker perspective, and to understand and explain how this affects the practice of child welfare. I have used case files from the Social Services and focus group interviews with social workers as empirical data. The analysis is primarily inspired by Lipsky's theory about street-level bureaucracies, and Has...

  10. "Månen är på semester"- En undersökning om barns föreställningar om jorden, månen och solen

    OpenAIRE

    Åhman, Linn

    2003-01-01

    Syftet med denna studie var att undersöka vad elever har för uppfattningar om förhållandena mellan jorden, månen och solen. De områden somhar undersökts har gällt storlek, avstånd och rörelse. Denna studie har också undersökt hur elever uppfattar att månens faser uppkommer. Försök har också gjorts att utröna var deras uppfattningar härrör från. Undersökningen är baserad på 20 intervjuer med elever där deras egna teckningar av de undersökta fenomenen har utgjort grunden. Genom en kvalitativ fe...

  11. The Owl : Hur utformar man ett pedagogiskt verktyg som hjälper barn att lära sig att skriva för hand i det digitala klassrummet

    OpenAIRE

    Östman, Ludwig

    2015-01-01

    We see a global decline in the ability and the quality of children’s handwriting. Children have swapped their pencils and papers to digital alternatives both at home and in school. However the reason this is a problem is that recent research proves how vital and beneficial the writing by hand process is for the development of the child. The process increases brain activity to a level similar that of adults but it also acts as a filter when processing information which benefits the memory. Th...

  12. Lika barn leka bäst? : En studie om hur små skillnader påverkar samarbetet mellan ett svenskt företag och dess utländska filialer

    OpenAIRE

    Ivstam, Jennifer; Lundgren, Fabian

    2014-01-01

    Att underskatta betydelsefulla skillnader mellan närliggande länder kan påverka företags utländska verksamhet negativt. Genom intervjuer med chefer inom Forex verksamhet i Norden har vi undersökt de språkliga och kulturella skillnaderna mellan de nordiska länderna och hur dessa påverkar samarbetet mellan Forex i Sverige och deras nordiska filialer. Enligt studiens resultat finns det betydelsefulla skillnader i språk och kultur mellan de nordiska länderna. Skillnader avseende kultur har påvisa...

  13. Kuvande rum : Materialitet och funktionsfullkomlighet i berättelser från kvinnor uppväxta på institutioner för barn med normbrytande funktionalitet under 1930 till 1970-talet

    OpenAIRE

    Bylund, Christine

    2016-01-01

    Ranging from the late 1880s to the late 1970s children with dis/abilities were orderlyinstitutionalized in Sweden due to lack of accessibility and aids in the surrounding society. The aim of this thesis is to discuss how ableist discourse of dis/ability and gender interacted with materiality, such as buildings, clothes and objects, in the institutions and how it affected the everyday lives of women who grew up there, a concept previously unexplored in a Swedish context. Using a qualitative me...

  14. ”Kan verka skrämmande på små barn.” Våld, sex och historiebruk i tv-serien Trälarna

    OpenAIRE

    Tommy Gustafsson

    2012-01-01

    This article examines the television adaption and reception of Swedish youth novelist Sven Wernström's series of historical youth novels called Trälarna (“The Thralls”) in the late 1970s and early 1980s. The book series as well as the Danish animated televisions series used a noticeable class perspective in order to make comparisons between the condition of slaves in medieval times and Swedish working class of the 19th and 20th centuries. In accordance with ...

  15. ’’Kan verka skrämmande på små barn.’’ Våld, sex och historiebruk i tv-serien Trälarna

    OpenAIRE

    Gustafsson, Tommy

    2012-01-01

    This article examines the television adaption and reception of Swedish youth novelist Sven Wernström’s series of historical youth novels called Trälarna  (‘‘The Thralls’’) in the late 1970s and early 1980s. The book series as well as the Danish animated televisions series used a noticeable class perspective in order to make comparisons between the condition of slaves in medieval times and Swedish working class of the 19th and 20th centuries. In accordance with the novels, the television serie...

  16. Manejo da comercialização em leilões e seus efeitos no preço de bezerros de corte Trade management in barn auction and its effects on the price of beef steers

    Directory of Open Access Journals (Sweden)

    Luciana Fagundes Christofari

    2009-01-01

    Full Text Available Avaliou-se o processo de comercialização de 1.757 lotes de bezerros, totalizando 28.495 animais, incluindo a ordem e o tempo de permanência em pista, as estratégias de divulgação aos compradores e uniformização dos lotes, o preço final (R$/kg de PV e o número de lances. O modelo proposto foi eficiente em cenários desfavoráveis à atividade de cria. Em períodos de grande oferta de bezerros e preços baixos, todas as variáveis estudadas podem influenciar o preço final por quilograma de peso vivo, o que indica que alguns aspectos fora do controle do produtor, mas bem próximo dele, podem influenciar o valor recebido, portanto, são importantes no acompanhamento do processo de comercialização dos animais.The commercialization process of 1.757 lots of calves was evaluated, totaling 28.495 animals, including the order and time of permanence in track, the divulgation strategies to the buyers and uniformity of the lots, as well as the final price (R$/kg WL and number of biddings. The model proposed was efficient in showing unfavorable scenarios for the breeding activity, and in periods of great offer of calves and low prices, the studied variables can influence the final price per kilogram of live weight. This indicates that some aspects out of the control of breeders but very close to them can influence the final value; therefore, are of extreme importance in the follow-up of the commercialization process of animals.

  17. Kosthold og fysisk aktivitet, har det en påvirkning på overvekt og fedme hos barn og unge? - En analyse av innsamlede data, og et systematisk litteratur søk

    OpenAIRE

    Halvorsen, Lenn Stian

    2012-01-01

    Background: The prevalence of overweight and obesity has increased during the last decades in many countries, and current prevalence data are alarming and give reason for serious health concerns in the future. However, our knowledge on the determinants of overweight and obesity in childhood and adolescence are limited, and more information is needed on the contribution of early development, social background, children’s diet and physical activity. The aim of this study was to identify if ther...

  18. Analisis dan Simulasi Distribusi Suhu Udara pada Kandang Sapi Perah Menggunakan Computational Fluid Dynamics (CFD

    Directory of Open Access Journals (Sweden)

    A.Yani

    2007-12-01

    Full Text Available This experiment was conducted to analyze the temperature and relative humidity distribution in dairy barn of Friesian Holstein (FH using computational fluid dynamics (CFD as a basic consideration for dairy barn design. The capacity of the dairy barn was 20 heads of FH with tail to tail model. The dimensions of the dairy barn were: 13 m in length, 6.3 m in width, and 5.75 m in height. The floor was made from concrete with 2o slope. Asbestos was used as roof of the dairy barn, whereas frame of the dairy barn was made from steel. The results of the analysis showed that during the daytime, air temperature inside the dairy barn increased by the height from floor level. The CFD simulation showed clearly the temperature distribution in the dairy barn. Air temperature obtained from CFD simulation was in line with that of the measured values. Therefore, it can be used as basic consideration for the dairy barn design with respect to low air temperature and uniform air temperature distribution. It was recommended that one of the best design configurations is 6.25 m high, 8.3 m wide, 0.4 m high of wall. The best design could decrease 0.474 oC of air temperature and increased dry matter intake of dairy cattle 0.403 kg per day per head. The amount of heat production of FH was considered to determine the best design of dairy barn.

  19. Performance and design of an alternative housing system for dairy cows

    OpenAIRE

    Leso, Lorenzo

    2015-01-01

    Housing can deeply affect the welfare of dairy cows and consequently their performance. Actually, free stall barns (FS) represent the most widespread housing system in intensive dairy farms. However, recent findings showed that this system can severely compromise animal welfare, especially as regards feet and leg health. Cultivated pack barns (CPB), known in many countries as compost barns, are relatively new housing option for dairy cows that seems to offer improved cow com...

  20. 7 CFR 29.3032 - Injury.

    Science.gov (United States)

    2010-01-01

    ... Practices), DEPARTMENT OF AGRICULTURE COMMODITY STANDARDS AND STANDARD CONTAINER REGULATIONS TOBACCO...-burnt, steam-burnt, barn-burnt, house-burnt, bleached, bruised, discolored, or deformed leaves;...

  1. Radiochemical determination of the neutron capture cross sections of {sup 241}Am irradiated in the JMTR reactor

    Energy Technology Data Exchange (ETDEWEB)

    Shinohara, N.; Hatsukawa, Y.; Hata, K.; Kohno, N. [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    1997-03-01

    The thermal neutron capture cross section {sigma}{sub 0} and Resonance integral I{sub 0} of {sup 241}Am leading to the production of {sup 242m}Am and {sup 242g}Am were measured by radiochemical method. The cross sections obtained in this study are {sigma}{sub 0}=60.9 {+-} 2.6 barn, I{sub 0}=213 {+-} 13 barn for {sup 241}Am(n,{gamma}){sup 242m}Am and {sigma}{sub 0}=736 {+-} 31 barn, I{sub 0}=1684 {+-} 92 barn for {sup 241}Am(n,{gamma}){sup 242g}Am. (author)

  2. Disease: H00155 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available 33 (2005) PMID:11326085 Garcia CK, Wilund K, Arca M, Zuliani G, Fellin R, Maioli M, Calandra S, Bertolini S, Cossu F, Grishin N, Barn...es R, Cohen JC, Hobbs HH Autosomal recessive hypercholesterolemia caused by mutations in a putative LDL receptor adaptor protein. Science 292:1394-8 (2001) ...

  3. Factors Associated with Highly Pathogenic Avian Influenza H5N2 Infection on Table-Egg Layer Farms in the Midwestern United States, 2015.

    Science.gov (United States)

    Garber, Lindsey; Bjork, Kathe; Patyk, Kelly; Rawdon, Thomas; Antognoli, Maria; Delgado, Amy; Ahola, Sara; McCluskey, Brian

    2016-06-01

    A case-control study was conducted among commercial table-egg layer and pullet operations in Iowa and Nebraska, United States, to investigate potential risk factors for infection with highly pathogenic avian influenza (HPAI) H5N2. A questionnaire was developed and administered to 28 case farms and 31 control farms. Data were collected at the farm and barn levels, enabling two separate analyses to be performed-the first a farm-level comparison of case farms vs. control farms, and the second a barn-level comparison between case barns on case farms and control barns on control farms. Multivariable logistic regression models were fit using a forward-selection procedure. Key risk factors identified were farm location in an existing control zone, rendering and garbage trucks coming near barns, dead-bird disposal located near barns, and visits by a company service person. Variables associated with a decreased risk of infection included visitors changing clothing, cleaning and disinfecting a hard-surface barn entryway, and ceiling/eaves ventilation in barns. PMID:27309288

  4. A note on an inclusion theorem

    Directory of Open Access Journals (Sweden)

    Huseyin Bor

    2001-03-01

    Full Text Available In this paper a relation between the $ | C, \\alpha; \\delta |_k $ and $ | \\bar{N}, p_n; \\delta |_k $ summability methods, which generalizes a result of Bor[2] concerning the $ | C, 1|_k $ and $ | \\bar{N}, p_n |_k $ summability methods, is proved.

  5. Causes of owl mortality in Hawaii, 1992-1994

    Science.gov (United States)

    Work, T.M.; Hale, J.

    1996-01-01

    Eighty-one barn owls (Tyto alba) and five Hawaiian owls or pueo (Asio flammeus sandwichensis) from Kauai, Oahu, Lanai, Molokai, Maui and Hawaii (USA) were evaluated for cause of death, November 1992 through August 1994. The most common cause of death in barn owls was trauma (50%) followed by infectious disease (28%) and emaciation (22%). Most traumas apparently resulted from vehicular collisions. Trichomoniasis was the predominant infectious disease and appeared to be a significant cause of death in barn owls in Hawaii. Pasteurellosis and aspergillosis were encountered less commonly. No predisposing cause of emaciation was detected. Stomach contents from 28 barn owls contained mainly insects (64%) of the family Tetigoniidae and Gryllidae, and rodents (18%); the remainder had mixtures of rodents and insects or grass. Three pueo died from trauma and one each died from emaciation and pasteurellosis. We found no evidence of organochlorine, organophosphorus, or carbamate pesticides as causes of death in pueo or barn owls.

  6. Study on the dynamics of spatial accumulation of oridonin and rosmariaic acid of rabdosia rubesens (Henmsl.) Barn%冬凌草甲素、迷迭香酸在冬凌草植株内空间积累的动态规律

    Institute of Scientific and Technical Information of China (English)

    苏秀红; 李雪菊; 董诚明; 王伟丽

    2009-01-01

    目的:揭示冬凌草甲素、迷迭香酸在冬凌草植株内空间积累的动态规律.方法:用高效液相色谱法测定冬凌草甲素、迷迭香酸的含量.结果:在同一株植物内,从上到下随着叶位及节问的降低,冬凌草甲素、迷迭香酸的含量也逐渐降低.结论:本结果为确定冬凌草的最佳采收部位提供了依据.%Objective: To explore the content of oridonin and rosmarinie acid in the leaves and stem of rabdosia rubesens (Henmsl.) Hara at different leaves and stem positions. Methods: The content of oridonin and rosmarinie acid was deter-mined by HPLC. Results: The content of oridonin and rosmarinie acid declined from top to bottom with the decrease of leaves and stem growth in the same plant. Conclusion: The results may provide references of the best fractions for collect-ing the rabdosia rubesens (Henmsl.) Hara.

  7. Physical profile data from CTD casts from the R/V THOMAS G. THOMPSON and the R/V CLIFFORD A. BARNES from the Ecology and Oceanography of Harmful Algal Blooms (ECOHAB) program, 17 February 2005 to 13 December 2006 (NODC Accession 0049911)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The CTD data in this collection were supported by NOAA ECOHAB project NA04NOS4780273, "The relationship between Paralytic Shellfish toxins and Alexandrium cysts in...

  8. La dieta de la lechuza (Tyto alba) (Aves: Strigiformes) en hábitats naturales y antropogénicos de la región central de Cuba Diet of Barn Owl (Tyto alba) (Aves: Strigiformes) in natural and anthropogenic habitat in central Cuba

    OpenAIRE

    Abel Hernández-Muñoz; Carlos A. Mancina

    2011-01-01

    Para determinar los hábitos tróficos de la lechuza, Tyto alba, se analizaron 1232 egagrópilas recolectadas entre 1994 y 2001 en 24 localidades de la región central de Cuba. Se encontraron 3943 presas; los roedores exóticos (Mus musculus y Rattus spp.) fueron las presas dominantes y representaron 80% del total. Otros tipos de presas fueron de menor frecuencia; por ejemplo, insectos (6.1%), murciélagos (5%), anfibios (4.8%), aves (3.6%) y reptiles (0.2%). Se agruparon las localidades de recolec...

  9. Trophic systems and chorology: data from shrews, moles and voles of Italy preyed by the barn owl / Sistemi trofici e corologia: dati su Soricidae, Talpidae ed Arvicolidae d'Italia predati da Tyto alba (Scopoli 1769

    Directory of Open Access Journals (Sweden)

    Longino Contoli

    1986-12-01

    Full Text Available Abstract In small Mammals biogeography, available data are up to now by far too scanty for elucidate the distribution of a lot of taxa, especially with regard to the absence from a given area. In this respect, standardized quantitative sampling techniques, like Owl pellets analysis can enable not only to enhance faunistic knowledges, but also to estimate the actual absence probability of a given taxon "m", lacking from the diet of an individual raptor. For the last purpose, the relevant frequencies of "m" in the other ecologically similar sites of the same raptor species diets are averaged ($f_m$ : the relevant standard error (multiplicated by a coefficient, according to the desired degree of accuracy, in relation of the integral of probabilities subtracted ($overline{F}_m - a E$: then, the probability that a single specimen is not pertaining to "m" is obtained ($P_0 = 1 - F_m + a E$; lastly, the desiderate accuracy probability ($P_d$ is chosen. Now, "$N_d$" (the number of individuals of all prey species in a single site needed for obtain, with the desired probability, a specimen at least of "m" is obtained through $$N = frac{ln P_d}{ln P_0}$$ Obviously, every site-diet with more than "N" preyed individuals and without any "i" specimen is considered to be lacking of such taxon. A "usefulness index" for the above purposes is outlined and checked about three raptors. Some exanples about usefulness of the Owl pellet analysis method in biogeography are given, concerning Tyto alba diets in peninsular Italy about: - Sorex minutus, lacking in some quite insulated areas; - Sorex araneus (sensu stricto, after GRAF et al., 1979, present also in lowland areas in Emilia-Romagna; - Crocidura suaveolens and - Suncus etruscus, present also in the southermost part of Calabria (Reggio province; - Talpa caeca, present also in the Antiapennines of Latium (Cimini mounts; - Talpa romana, present also in the middle of Tuscany; - Clethrionomys glareolus, lacking in few small, insulated areas, but present in coastal woodlands; - Microtus (Pitymys sp., apparently lacking only in some coastal areas of Toscana and Liguria, or in some Etna slopes (Linguaglossa. Riassunto Un metodo standardizzato e quantitativo di raccolta dei dati quale l'esame delle borre di rapaci consente non solo di integrare le conoscenze faunistiche, ma pure di tentare una valutazione della probabilità di assenza di un dato taxon da un'area geografica. In proposito, vengono presentati esempi originali circa Sorex minutus, Sorex araneus, Crocidura suaveolens, Suncus etruscus, Talpa caeca, Microtus (Pitymys savii e Microtus (Pitymys multiplex in Italia peninsulare.

  10. « The arrested step », Nightwood de Djuna Barnes : « Une image est une halte que fait l’esprit entre deux incertitudes » “The arrested step”, Djuna Barnes’s Nightwood: “An image is a stop the mind makes between uncertainties”

    Directory of Open Access Journals (Sweden)

    Christiane Guillois

    2009-05-01

    Full Text Available The tortured universe of Nightwood engages in a fundamental questioning of the common notion of man’s duality. Against a backdrop in which night is indistinguishable from day and characters are denied their wholeness, the body, essentially the body seen in movement, appears as the paradox inherent in the human condition. The reader encounters five characters drifting towards madness in an unsettled world, and a startlingly poetic prose that constantly disrupts the flow of events as it relentlessly explores their existential depths. With an unwavering sense of urgency, the literature of excess that defines Djuna Barnes’s work pushes back the limits of the unacceptable, as if to bring into the light that which is most intimate in man. She will have none of fossilized emotions and acts predicated on habit. She seeks the authentic, and it is this quest that leads her to bodies in motion, for while fashioned out of personal history, they throb with pulsations that are universal. In her search for the universal in this animal aspiring to transcendence and now passing through its human stage, she probes the bodies of her characters with a doggedness that leads to near-disintegration. What is human in man is not permanently established; it is to be rediscovered and reconquered, constantly.

  11. Läsinlärning och läsinlärningsmetoder : En kvalitativ studie om verksamma lärares val av läsinlärningsmetoder för läsinlärning hos barn i klasserna Fk-3

    OpenAIRE

    Boström, Nicole

    2015-01-01

    This study centres on learning to read and methods for teaching reading skills. The aim is to provide a survey of the concept reading skills and the methods developed on the basis of different theories and the methods preferred when teaching children in primary school and why. The study is based on interviews with eight teachers who are working on a daily basis teaching Swedish in preschool class or lower primary school. The result of my study is that the majority of teachers do not use a spe...

  12. Trophic systems and chorology: data from shrews, moles and voles of Italy preyed by the barn owl / Sistemi trofici e corologia: dati su Soricidae, Talpidae ed Arvicolidae d'Italia predati da Tyto alba (Scopoli 1769)

    OpenAIRE

    Longino Contoli

    1986-01-01

    Abstract In small Mammals biogeography, available data are up to now by far too scanty for elucidate the distribution of a lot of taxa, especially with regard to the absence from a given area. In this respect, standardized quantitative sampling techniques, like Owl pellets analysis can enable not only to enhance faunistic knowledges, but also to estimate the actual absence probability of a given taxon "m", lacking from the diet of an individual raptor. For the l...

  13. Trends in obesity among Norwegian children from 1970-2012, presentation of possible measures to reduce this public health problem = Utvikling i overvekt blant norske barn i perioden mellom 1970-2012, og presentasjon av tiltak som kan benyttes for å redusere dette folkehelseproblemet

    OpenAIRE

    Haug, Ida M. Refsahl

    2013-01-01

    Abstract: Background: Obesity is defined as BMI over 25. There is evidence of an increasing incidence of obesity among Norwegian children, and various studies show that between 15 to 20% are in the category of overweight. Purpose: Finding Norwegian children's weight trends in the period 1970 - 2012, and figure out which methods are the best suited to the prevention and weight loss among children. Material and Methods: The data are obtained from the medical database Medline (Ovid), a...

  14. Vegankost eller blandkost? : En jämförelse av näringsintag, livsmedelsval och måltidsmönster hos förskolebarn som äter vegankost och blandkost.

    OpenAIRE

    Augustsson, Maria; Berglund, Ida-Karin

    2012-01-01

    Bakgrund: Diskussionerna och studierna kring vegankost till barn är många och med spridda åsikter och resultat. I folkmun dominerar ofta de negativa åsikterna där riskerna för brister i kosten står i fokus. Många studier visar dock att om de vanligaste fällorna undviks växer och utvecklas barn som äter vegankost normalt. Idag hamnar debatten ofta kring riskerna med att ge barn vegankost, medan debatten kring den felbalanserade blandkostens baksidor lätt glöms bort. Enligt den senaste nationel...

  15. On Ruby's solid angle formula and some of its generalizations

    International Nuclear Information System (INIS)

    Using the Mellin–Barnes representation, we show that Ruby's solid angle formula and some of its generalizations may be expressed in a compact way in terms of the Appell F4 and Lauricella FC functions

  16. On Ruby's solid angle formula and some of its generalizations

    CERN Document Server

    Friot, Samuel

    2014-01-01

    Using the Mellin-Barnes representation, we show that Ruby's solid angle formula and some of its generalizations may be expressed in a compact way in terms of the Appell F4 and Lauricella Fc functions.

  17. On Ruby's solid angle formula and some of its generalizations

    Science.gov (United States)

    Friot, Samuel

    2015-02-01

    Using the Mellin-Barnes representation, we show that Ruby's solid angle formula and some of its generalizations may be expressed in a compact way in terms of the Appell F4 and Lauricella FC functions.

  18. 7 CFR 29.3002 - Air-cured.

    Science.gov (United States)

    2010-01-01

    ... Practices), DEPARTMENT OF AGRICULTURE COMMODITY STANDARDS AND STANDARD CONTAINER REGULATIONS TOBACCO... control excess humidity during the curing period to prevent house-burn and barn-burn in damp weather....

  19. Handledning på distans : Handledning med tematiken kost

    OpenAIRE

    Bergman, Hanna; Ratus, Jannice; Riikonen, Bettina; Åhman, Alexandra

    2015-01-01

    Abstrakt Detta examensarbete är en del inom projektet ”Det resursstarka barnet”. Syftet med arbetet är att pröva om virtuell handledning av barn i 4-års åldern fungerar. Målet är att pröva om virtuell handledning med barn fungerar och därmed skapa en checklista med tips och råd för den professionella att tillämpa i praktiskt arbete. Frågeställningen för arbetet är: Fungerar handledning av barn på distans via en surfplatta?” och ”Vad skall handledaren tänka på då hen handleder barn virtuel...

  20. Corticosterone mediates the condition-dependent component of melanin-based coloration

    Czech Academy of Sciences Publication Activity Database

    Roulin, A.; Almasi, B.; Rossi-Pedruzzi, A.; Ducrest, A.-L.; Wakamatsu, K.; Mikšík, Ivan; Blount, J.D.; Jenni-Eiermann, S.; Jenni, L.

    2008-01-01

    Roč. 75, č. 4 (2008), s. 1351-1358. ISSN 0003-3472 Institutional research plan: CEZ:AV0Z50110509 Keywords : coricosterone * barn owl * melanin Subject RIV: CE - Biochemistry Impact factor: 2.828, year: 2008