262 research outputs found
Implementing an Agent Trade Server
An experimental server for stock trading autonomous agents is presented and
made available, together with an agent shell for swift development. The server,
written in Java, was implemented as proof-of-concept for an agent trade server
for a real financial exchange.Comment: 14 pages, 7 figures, intended for B/W printin
GeoNotes: A Location-based Information System for Public Spaces
The basic idea behind location-based information systems is to connect information pieces to positions in outdoor or indoor space. Through position technologies such as Global Positioning System (GPS), GSM positioning, Wireless LAN positioning o
Serum fatty acid profile does not reflect seafood intake in adolescents with atopic eczema.
AIM:
Long-chain polyunsaturated fatty acids (LCPUFAs) are immunomodulatory, but their role in allergy development is controversial. We investigated whether proportions of LCPUFAs in serum phospholipids were related to allergic diagnosis, seafood intake and LCPUFA proportions in cord blood.</br></br>
METHODS:
Serum was obtained from 148 birth cohort children at 13 years of age. Forty had atopic eczema, 53 had respiratory allergy, and 55 were nonallergic. Proportions of LCPUFAs were determined in serum phospholipids; cord blood from 128 of the individuals was previously analysed. Seafood intake was estimated using questionnaires.</br></br>
RESULTS:
Allergic and nonallergic individuals did not differ significantly regarding individual LCPUFAs. However, arachidonic acid over docosahexaenoic acid (DHA) ratio was higher in allergic, compared with nonallergic, adolescents. In nonallergic individuals, LCPUFA proportions in cord serum and adolescent serum correlated weakly. In individuals with atopic eczema and respiratory allergy, these correlations were weak or absent. A moderate correlation between seafood intake and serum DHA was seen in nonallergic individuals and those with respiratory allergy, but not in those with atopic eczema.</br></br>
CONCLUSION:
Serum LCPUFA pattern was similar in allergic and nonallergic adolescents. Fatty acid metabolism may be altered in atopic eczema subjects, suggested by poor correlations between fatty acid intake and serum levels
A MUSE map of the central Orion Nebula (M 42)
We present a new integral-field spectroscopic dataset of the central part of
the Orion Nebula (M 42), observed with the MUSE instrument at the ESO VLT. We
reduced the data with the public MUSE pipeline. The output products are two
FITS cubes with a spatial size of ~5.9'x4.9' (corresponding to ~0.76 pc x 0.63
pc) and a contiguous wavelength coverage of 4595...9366 Angstrom, spatially
sampled at 0.2". We provide two versions with a sampling of 1.25 Angstrom and
0.85 Angstrom in dispersion direction. Together with variance cubes these files
have a size of 75 and 110 GiB on disk. They represent one of the largest
integral field mosaics to date in terms of information content. We make them
available for use in the community. To validate this dataset, we compare world
coordinates, reconstructed magnitudes, velocities, and absolute and relative
emission line fluxes to the literature and find excellent agreement. We derive
a two-dimensional map of extinction and present de-reddened flux maps of
several individual emission lines and of diagnostic line ratios. We estimate
physical properties of the Orion Nebula, using the emission line ratios [N II]
and [S III] (for the electron temperature ) and [S II] and [Cl III] (for
the electron density ), and show two-dimensional images of the velocity
measured from several bright emission lines.Comment: Resubmitted to A&A after incorporating referee comments; access to
full dataset via http://muse-vlt.eu/science/data-release
Определение сроков годности экстракционных лекарственных средств корневищ с корнями синюхи голубой
РАСТЕНИЙ ЭКСТРАКТЫСИНЮХА ГОЛУБА
Nursery production systems and their impact on long term development in urban trees
Träd och andra urbana naturresurser spelar en stor roll i skapandet av hållbara
städer, och tillhandahåller många viktiga ekosystemtjänster. Många av dessa
ekosystemtjänster är kopplade till trädens storlek och vitalitet. Staden som
växtplats är dock sällan optimal, och stadsträd utsätts för mycket stress i form av
bland annat torka, platsbrist, föroreningar, markkompaktering och fysiska skador.
Detta försvårar etableringen av träd i städer, men påverkar även deras långsiktiga
utveckling och vitalitet. Att ersätta stadsträd är också kostsamt ekonomiskt såväl
som för miljön. I plantskolor används olika metoder för att främja ett välutvecklat
rotsystem och därigenom underlätta etablering. Syftet med denna studie är att
undersöka huruvida olika plantskoleproduktionsmetoder påverkar utvecklingen av
stadsträd på längre sikt (15 år).
Denna studie är en uppföljning på delar av en tidigare studie som undersökte
plantskoleproduktionsmetodens påverkan på etablering av träd i urbana miljöer.
Träden som undersöks planterades 2008 i ett bostadsområde i Malmö, och är av
arterna rödek (Quercus rubra) och sötkörsbär (Prunus avium). Träden
behandlades med fem olika produktionsmetoder i plantskolan; barrot,
klumpodling med eller utan rotbeskärning, fabric container (root control bag) och
depåodling (air pot). I denna studie undersöktes trädens långsiktiga utveckling
genom mätningar av skottillväxt och stamomfång. Resultatet visade inga
signifikanta skillnader i tillväxt mellan de olika behandlingarna.Trees and other urban natural resources play a major role in the creation of
sustainable cities, providing many important ecosystem services. Many of these
ecosystem services are linked to tree size and vitality. However, the city as a
planting site is rarely optimized, and urban trees are exposed to stress factors such
as drought, lack of space, pollution, soil compaction and physical damage. This
makes the establishment of trees in cities difficult, but also affects their long-term
development and vitality. Replacing urban trees is also costly financially as well
as for the environment. In nurseries, different methods are used to promote a
well-developed root system and thereby facilitate establishment. The aim of this
study is to investigate whether different nursery production systems affect the
long term development of urban trees (15 years).
This study is a follow-up on parts of a previous study that investigated the impact
of the nursery production system on the establishment of trees in urban
environments. The trees in this study were planted in 2008 in a residential area in
Malmö, and the species used were red oak (Quercus rubra) and sweet cherry
(Prunus avium). The trees were treated with five different production systems in
the nursery; bare root, balled and burlapped with or without root pruning, fabric
container (root control bag) and air pot. In this study, the long-term development
of the trees was assessed through measurements of shoot growth and stem girth.
The result showed no significant differences in growth between the different
treatments
Child rights governance: An introduction
In this special issue, we explore child rights governance as the intersection between the study of governance and the study of children, childhood, and children’s rights. Our introduction puts forward a set of theoretical points of departure for the study of child rights governance, engaging with scholarship on human rights, international relations, history, and governance. It links the individual contributions to this special issue with four central dimensions of child rights governance, namely: temporality, spatiality, subjectivity, and normativity
Nio specialpedagogers upplevelser av arbetet med grundsärskolans elever i grundskolan.
Det finns få studier om grundsärskolans elever som är integrerade i grundskolan. Aktuell
forskning samt statliga granskningar och utredningar visar att grundskolans lärare saknar
grundläggande kunskaper om intellektuell funktionsnedsättning (IF) och om grundsärskolans
styrdokument och bedömningsstöd. Specialpedagogers uppfattningar är att lärare är i behov
av mer hjälp, stöd och resurser för att kunna undervisa elever med IF i grundskolan. Lärare
har behov av specialpedagogens stöd i arbetet med integrerade elever. Studiens övergripande
syfte är att undersöka nio specialpedagogers upplevelser av arbetet med integrerade elever i
grundskolan. Studiens teoretiska utgångspunkter grundar sig på fenomenologi samt tre perspektiv inom specialpedagogik. Studien är en kvalitativ intervjustudie där kärnan i teori och
metod är fenomenologi där forskaren studerar specialpedagogernas erfarenheter och upplevel ser. I studien genomförs halvstrukturerade livsvärldsintervjuer med nio specialpedagoger som
har erfarenhet av integrerade elever. Följande forskningsfrågor har använts i studien:
Hur upplever specialpedagogerna förutsättningarna och organisationen i arbetet med integrerade elever i grundskolan?
Hur upplever specialpedagogerna möjligheter och utmaningar med planering och genomförande av undervisningen för integrerade elever i grundskolan?
Hur upplever specialpedagogerna handledningen till pedagogisk personal som arbetar med integrerade elever i grundskolan?
Resultatet visar att specialpedagogerna upplever att det finns en stödjande funktion centralt i
respektive kommun samt stödjande ledning lokalt på respektive skola. Specialpedagogerna
och rektor samverkar och är kreativa med de resurser som finns tillgängliga. Dessutom före kommer det samtalsarenor inom verksamheten där handledning genomförs. Vidare beskriver
specialpedagogerna behovet av att skolledning skapar tid och förutsättningar för pedagogisk
personal till handledning och kompetensutveckling. Specialpedagogerna upplever även vikten
av att lyssna både på den integrerade elevens behov och den pedagogiska personalens behov.
Slutsatsen i resultatdiskussionen blir att elevhälsan och pedagogisk personal samverkar för att
kunna möta elevens mående och behov samt för att kunna erbjuda en tillgänglig lärmiljö
Cat and dog ownership during/after the first year of life and risk for sensitization and reported allergy symptoms at age 13
Background: Avoidance of pets as a strategy for preventing atopic diseases has been questioned. This study aimed to identify the risk of sensitization and allergic symptoms at age 13 in relation to dog- and cat-keeping during and after the first year of life. Methods: The study included all children born at
6stersund Hospital in Northern Sweden between February 1996 and January 1997 (n = 1231). At inclusion, parents were asked to answer questionnaires about lifestyle, including cat- and dog-keeping. Dog allergy, cat allergy, hay fever, and asthma were diagnosed based on parental reported allergic symptoms at 13 years of age (n = 834). The risks of sensitization or allergy in relation to dog- and cat-keeping during and after the first year of life were analyzed with logistic regression. To adjust for reverse causation, all subjects that had reported avoidance of pets due to allergic symptoms of the child or allergy in the family (n = 177) were excluded. Results: Dog- or cat-keeping during the first year of life reduced the risk of sensitization to dog or cat allergens, respectively, and to birch and to at least one of the 10 allergens tested. Cat-keeping, both during and after the first year of life, reduced the risk of cat allergy and hay fever. Having a dog at home during the first year of life reduced the risk of dog and cat allergy, whereas dog-keeping after the first year of life did not affect allergic symptoms. Conclusions: Cat ownership, either during or after the first year of life, may be a strategy for preventing the development of cat allergy and hay fever later in life. Dog ownership reduced the risk of sensitization to dog and birch allergen, and also the risk of cat and dog allergy, but had no effect on hay fever
Preterm birth and the risk of chronic disease multimorbidity in adolescence and early adulthood: : A population-based cohort study
Peer reviewe
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