1,432 research outputs found

    Fighting Childhood Hunger in Ohio's Communities

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    IMPACT. 1: We provide access to healthy food by helping nearly 1,000 childcare providers and 215 afterschool programs serve nutritious meals and snacks to children and promote healthy eating habits and activities. -- 2. We work with school districts to begin or expand school breakfast programs. In 2015 we helped increase participation in the federal School Breakfast Program by 14,714 children statewide. -- 3. In 2015, we provided physical activity and nutrition education program for nearly 2,500 elementary and middle school aged children in an after-school or summer setting.OSU PARTNERS: Office of the President; Alumni Association; College of Education and Human Ecology; College of Pharmacy; Fisher College of Business; Department of Athletics; Office of Academic Affairs; Office of Diversity and Inclusion; Office of Student Life; Office of Undergraduate Education; The James; Wexner Medical CenterCOMMUNITY PARTNERS: AEP; Alliance Data; Battelle; Cardinal Health; CareSource; Columbus Business First; Crane Group; City of Columbus; Columbia Gas of Ohio; The Columbus Partnership; Discover; DSW; Honda; Huntington National Bank; Kokosing; Kroger; LBrands; Nationwide; UnitedHealthcare; Resource InternationalPRIMARY CONTACT: Rhonda Davis-Comoretto ([email protected])In Ohio, 680,000 children do not know where their next meal is coming from. That is nearly 1 in 4 children right in our backyard. Children's Hunger Alliance is a statewide nonprofit organization dedicated to ensuring that children without access receive healthy food, nutrition education and physical activity. Children's Hunger Alliance does this by working with child care providers, and breakfast, afterschool and summer meal programs

    Do cognitive distortions explain the longitudinal relationship between life adversity and emotional and behavioural problems in secondary school children?

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    Research has shown that children exposed to life adversity are at higher risk of negative developmental outcomes than those enduring lower stress levels. Life adversity can lead, among other things, to emotional and behavioural problems. Several factors have been studied to explain this relationship, with several investigators underlining the role of thought structures such as cognitive distortions, which refer to negatively biased information‐processing of external events. This can help explain why some individuals characterised by adverse personal life stories interpret ambiguous events in a negatively biased way. This study was aimed at assessing the mediating role of cognitive distortions in the longitudinal relationship between life adversity and two dimensions of psychopathology, namely, emotional and behavioural problems in 247 secondary school children attending three state secondary schools in one county in the South East of England. An increase in life adversity was associated with an increase in cognitive distortions, which was in turn related to a higher number of symptoms reflecting behavioural issues. In terms of practical applications, an effort to protect children from further exposure to adverse life events could represent a step forward to prevent the development of future behavioural problems in at‐risk children

    Effect of interchain separation on the photoinduced absorption spectra of polycarbazolyldiacetylenes

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    The photoinduced absorption spectra of a novel polycarbazolyldiacetylene with long aliphatic chains on the carbazolyl side groups are measured and compared with those of the unsubstituted polyDCHD. The two polymers in the blue form exhibit very similar electronic absorption spectra and Raman frequencies. This fact indicates that the conjugation length of the polydiacetylene backbone is not too affected by the long substituents. In contrast, the near steady-state photoinduced absorption spectra show that different photogeneration mechanisms are involved in the two polymers. This result can be ascribed to the role played by the interchain distance in the dynamics of the relaxation processes in polydiacetylenes

    Strong coupling between excitons in organic semiconductors and Bloch Surface Waves

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    We report on the strong coupling between the Bloch surface wave supported by an inorganic multilayer structure and JJ-aggregate excitons in an organic semiconductor. The dispersion curves of the resulting polariton modes are investigated by means of angle-resolved attenuated total reflection as well as photoluminescence experiments. The measured Rabi splitting is 290 meV. These results are in good agreement with those obtained from our theoretical model

    Band structure and optical properties of opal photonic crystals

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    A theoretical approach for the interpretation of reflectance spectra of opal photonic crystals with fcc structure and (111) surface orientation is presented. It is based on the calculation of photonic bands and density of states corresponding to a specified angle of incidence in air. The results yield a clear distinction between diffraction in the direction of light propagation by (111) family planes (leading to the formation of a stop band) and diffraction in other directions by higher-order planes (corresponding to the excitation of photonic modes in the crystal). Reflectance measurements on artificial opals made of self-assembled polystyrene spheres are analyzed according to the theoretical scheme and give evidence of diffraction by higher-order crystalline planes in the photonic structure.Comment: to appear in PR

    Long-lived photoexcited states in polydiacetylenes with different molecular and supramolecular organization

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    With the aim of determining the importance of the molecular and supramolecular organization on the excited states of polydiacetylenes, we have studied the photoinduced absorption spectra of the red form of poly[1,6-bis(3,6-didodecyl-N-carbazolyl)-2,4-hexadiyne] (polyDCHD-S) and the results compared with those of the blue form of the same polymer. An interpretation of the data is given in terms of both the conjugation length and the interbackbone separation also in relation to the photoinduced absorption spectra of both blue and red forms of poly[1,6-bis(N-carbazolyl)-2,4-hexadiyne] (polyDCHD), which does not carry the alkyl substituents on the carbazolyl side groups. Information on the above properties is derived from the analysis of the absorption and Raman spectra of this class of polydiacetylenes

    NIKEL: Electronics and data acquisition for kilopixels kinetic inductance camera

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    A prototype of digital frequency multiplexing electronics allowing the real time monitoring of microwave kinetic inductance detector (MKIDs) arrays for mm-wave astronomy has been developed. Thanks to the frequency multiplexing, it can monitor simultaneously 400 pixels over a 500 MHz bandwidth and requires only two coaxial cables for instrumenting such a large array. The chosen solution and the performances achieved are presented in this paper.Comment: 21 pages, 14 figure

    Equations for filling factor estimation in opal matrix

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    We consider two equations for the filling factor estimation of infiltrated zinc oxide (ZnO) in silica (SiO_2) opal and gallium nitride in ZnO opal. The first equation is based on the effective medium approximation, while the second one - on Maxwell-Garnett approximation. The comparison between two filling factors shows that both equations can be equally used for the estimation of the quantity of infiltrated nanocrystals inside opal matrix.Comment: 14 pages, 7 figures, 1 table. Addendum to the article: http://arxiv.org/abs/physics/050815

    The TNG Near Infrared Camera Spectrometer

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    NICS (acronym for Near Infrared Camera Spectrometer) is the near-infrared cooled camera-spectrometer that has been developed by the Arcetri Infrared Group at the Arcetri Astrophysical Observatory, in collaboration with the CAISMI-CNR for the TNG (the Italian National Telescope Galileo at La Palma, Canary Islands, Spain). As NICS is in its scientific commissioning phase, we report its observing capabilities in the near-infrared bands at the TNG, along with the measured performance and the limiting magnitudes. We also describe some technical details of the project, such as cryogenics, mechanics, and the system which executes data acquisition and control, along with the related software.Comment: 7 pages, 5 figures, compiled with A&A macros. A&A in pres
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