3,297 research outputs found
UK food manufacturer responses to voluntary front of package nutrition schemes
2nd Place OSU Denman Undergraduate Research Forum - Agriculture and Environmental Science DivisionAfter a period of consultation and research, the United Kingdom (UK) Food Standards Agency (FSA) introduced a voluntary, colour-based front of package (FOP) labelling program called traffic light system (TLS) in March of 2006. The goal of this program is to promote accessible nutrition information that will facilitate consumer food decisions and thus encourage healthier diets. Several studies have been conducted to measure consumer response to front of package labelling schemes. However, the existing literature does not address how food manufacturers and retailers are responding to voluntary labelling systems or to the ongoing debate over potential mandatory nutrition labelling requirements across the European Union (EU). A food innovation database (Global New Products Database) was used to track all food products released in the UK from January 1, 2002 through December 31, 2008. Meal, bakery and breakfast cereal products were further classified into two groups, according to the targeted foods categories defined by the Food Standard Agency (FSA). Analysis consists of descriptive statistics on product innovation-level compilation, as well as cross tabulations of factors such as product category, type of FOP scheme, firm, and year. Research revealed that private label brands dominate food innovations in the UK. The use of FOP labels is selective among firms and across food categories. Guideline daily allowance (GDA) labelling is more widely adopted than the traffic light labelling system (TLS) in the UK. Both systems have been more broadly adopted in target food categories when compared to general (non-target) foods. Future research efforts should focus on tools which expand FOP to additional food categories which are significant in the average UK diet and firm incentives to increase FOP adoption.The Ohio State UniversityNo embarg
Ion association in low-polarity solvents: comparisons between theory, simulation, and experiment
The association of ions in electrolyte solutions at very low concentration
and low temperature is studied using computer simulations and quasi-chemical
ion-pairing theory. The specific case of the restricted primitive model
(charged hard spheres) is considered. Specialised simulation techniques are
employed that lead to efficient sampling of the arrangements and distributions
of clusters and free ions, even at conditions corresponding to nanomolar
solutions of simple salts in solvents with dielectric constants in the range
5-10, as used in recent experimental work on charged-colloid sus- pensions. A
direct comparison is effected between theory and simulation using a variety of
clustering criteria and theoretical approximations. It is shown that
conventional distance-based cluster criteria can give erroneous results. A
reliable set of theoretical and simulation estimators for the degree of
association is proposed. The ion-pairing theory is then compared to
experimental results for salt solutions in low-polarity solvents. The agreement
is excellent, and on this basis some calculations are made for the screening
lengths which will figure in the treatment of colloid-colloid interactions in
such solutions. The accord with available experimental results is complete
Security and privacy in online social networking: Risk perceptions and precautionary behaviour
A quantitative behavioural online study examined a set of hazards that correspond with security- and privacy settings of the major global online social network (Facebook). These settings concern access to a user's account and access to the user's shared information (both security) as well as regulation of the user's information-sharing and user's regulation of others' information-sharing in relation to the user (both privacy). We measured 201 non-student UK users' perceptions of risk and other risk dimensions, and precautionary behaviour. First, perceptions of risk and dread were highest and precautionary behaviour was most common for hazards related to users' regulation of information-sharing. Other hazards were perceived as less risky and less precaution was taken against these, even though they can lead to breaches of users' security or privacy. Second, consistent with existing theory, significant predictors of perceived risk were attitude towards sharing information on Facebook, dread, voluntariness, catastrophic potential and Internet experience; and significant predictors of precautionary behaviour were perceived risk, control, voluntariness and Internet experience. Methodological implications emphasise the need for non-aggregated analysis and practical implications emphasise interventions to promote safe online social-network use
Separating climate-induced mass transfers and instrumental effects from tectonic signal in repeated absolute gravity measurements
We estimate the signature of the climate-induced mass transfers in repeated absolute gravity measurements based on satellite gravimetric measurements from the Gravity Recovery and Climate Experiment (GRACE) mission. We show results at the globe scale and compare them with repeated absolute gravity (AG) time behavior in three zones where AG surveys have been published: Northwestern Europe, Canada, and Tibet. For 10 yearly campaigns, the uncertainties affecting the determination of a linear gravity rate of change range 3–4 nm/s^2/a in most cases, in the absence of instrumental artifacts. The results are consistent with what is observed for long-term repeated campaigns. We also discuss the possible artifact that can result from using short AG survey to determine the tectonic effects in a zone of high hydrological variability. We call into question the tectonic interpretation of several gravity changes reported from stations in Tibet, in particular the variation observed prior to the 2015 Gorkha earthquake
Using a gamified monitoring app to change adolescents' snack intake : the development of the REWARD app and evaluation design
Background: As the snacking pattern of European adolescents is of great concern, effective interventions are necessary. Till now health promotion efforts in children and adolescents have had only limited success in changing adolescents' eating patterns and anthropometrics. Therefore, the present study proposes an innovative approach to influence dietary behaviors in youth based on new insights on effective behavior change strategies and attractive intervention channels to engage adolescents. This article describes the rationale, the development, and evaluation design of the 'Snack Track School' app. The aim of the app is to improve the snacking patterns of Flemish 14- to 16-year olds.
Methods: The development of the app was informed by the systematic, stepwise, iterative, and collaborative principles of the Intervention Mapping protocol. A four week mHealth intervention was developed based on the dual-system model with behavioral change strategies targeting both the reflective (i.e., active learning, advance organizers, mere exposure, goal-setting, monitoring, and feedback) and automatic processes (i.e., rewards and positive reinforcement). This intervention will be evaluated via a controlled pre-post design in Flemish schools among 1400 adolescents.
Discussion: When this intervention including strategies focused on both the reflective and automatic pathway proves to be effective, it will offer a new scientifically-based vision, guidelines and practical tools for public health and health promotion (i.e., incorporation of learning theories in intervention programs)
Encountered problems when using published fish contamination data in a probabilistic intake assessment
Why do men self-harm? A literature review
This critical review developed and analysed two key strands. One strand examined the reasons why men self-harm; the other examined effective ways to educate staff about self-harm. These strands were interweaved to develop an in-depth and informative review to help educate and inform staff who work with and support men who self-harm. A systematic search strategy was conducted to find primary research articles for analysis and evaluation. Three key themes emerged: interpersonal relationships; attitudes and educating staff. This review recommends that staff should be encouraged to change their behaviour and view themselves and their relationships differently. This can have a positive impact on developing and maintaining therapeutic relationships
Study of arc-jet propulsion devices Final report, 20 Nov. 1964 - 19 Dec. 1965
Energy transfer mechanisms in radiation, water, and regeneratively cooled, and MPD arc jet propulsion device
Follow-up of bone lesions in an experimental multiple myeloma mouse model: description of an in vivo technique using radiography dedicated for mammography.
The evolution of bone lesions in transplantable C57BL/KaLwRjj 5T mouse myeloma (MM) has been followed in vivo. Mice were anaesthetised and a radiograph of the pelvis and hind legs was performed by a radiograph dedicated for mammography. This is the first description of an in vivo technique under experimental conditions whereby the development of bone lesions owing to the MM growth was demonstrated
Ihog and Boi are essential for Hedgehog signaling in Drosophila
<p>Abstract</p> <p>Background</p> <p>The Hedgehog (Hh) signaling pathway is important for the development of a variety of tissues in both vertebrates and invertebrates. For example, in developing nervous systems Hh signaling is required for the normal differentiation of neural progenitors into mature neurons. The molecular signaling mechanism underlying the function of Hh is not fully understood. In <it>Drosophila</it>, Ihog (Interference hedgehog) and Boi (Brother of Ihog) are related transmembrane proteins of the immunoglobulin superfamily (IgSF) with orthologs in vertebrates. Members of this IgSF subfamily have been shown to bind Hh and promote pathway activation but their exact role in the Hh signaling pathway has remained elusive. To better understand this role <it>in vivo</it>, we generated loss-of-function mutations of the <it>ihog </it>and <it>boi </it>genes, and investigated their effects in developing eye and wing imaginal discs.</p> <p>Results</p> <p>While mutation of either <it>ihog </it>or <it>boi </it>alone had no discernible effect on imaginal tissues, cells in the developing eye disc that were mutant for both <it>ihog </it>and <it>boi </it>failed to activate the Hh pathway, causing severe disruption of photoreceptor differentiation in the retina. In the anterior compartment of the developing wing disc, where different concentrations of the Hh morphogen elicit distinct cellular responses, cells mutant for both <it>ihog </it>and <it>boi </it>failed to activate responses at either high or low thresholds of Hh signaling. They also lost their affinity for neighboring cells and aberrantly sorted out from the anterior compartment of the wing disc into posterior territory. We found that <it>ihog </it>and <it>boi </it>are required for the accumulation of the essential Hh signaling mediator Smoothened (Smo) in Hh-responsive cells, providing evidence that Ihog and Boi act upstream of Smo in the Hh signaling pathway.</p> <p>Conclusions</p> <p>The consequences of <it>boi;ihog </it>mutations for eye development, neural differentiation and wing patterning phenocopy those of <it>smo </it>mutations and uncover an essential role for Ihog and Boi in the Hh signaling pathway.</p
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