6,247 research outputs found
The impact of packaging design on health product perceptions
Packaging design has been studied in a variety of contexts but findings remain inconsistent, particularly on the impact of individual elements (e.g. Mitchell & Papvassiliou, 1999; Becker, Rompay, Schifferstein and Galetzka, 2011; Siloyoi & Speece, 2007). Although several studies have found visual cues (picture, typography, colour) to be the most impactful on consumer attention and attitude (e.g. Folkes & Matta, 2004; Silayoi & Speece, 2004), most studies have focused on other elements such as size and shape, (e.g. Ares & Deliza, 2010) and verbal cues (e.g. Klimchuk & Krasovec, 2013). Responding to recent calls for more research (Orth, Campana & Malkewitz 2010), this study investigates the impact of both visual elements and verbal elements on consumer perceptions, specifically looking at product ‘healthiness’. To date, there is relatively little research looking at health product perceptions in the marketing literature, despite recognition that health is ‘the most significant trend and innovation driver in the global and foods drink market’ (Meziane, 2007). This paper applies conjoint analysis to examine the relative importance of four product attributes representing visual and verbal cues: level of information provided on the label (low vs high); presence of an organic ‘kite’ mark (yes/no); colour (green/orange) and the product image on the label (transparent window vs product photo). It is worth noting that despite being widely found on health food packaging, transparent windows have been considered in only one paper to date (Sioutis, 2011). Three product categories were tested (baby food, soup and coffee) across 288 UK participants. The results find verbal cues to be most important, with the amount of information provided being the key driver
10C continued: A deeper radio survey at 15.7 GHz
We present deep 15.7-GHz observations made with the Arcminute Microkelvin
Imager Large Array in two fields previously observed as part of the Tenth
Cambridge (10C) survey. These observations allow the source counts to be
calculated down to 0.1 mJy, a factor of five deeper than achieved by the 10C
survey. The new source counts are consistent with the extrapolated fit to the
10C source count, and display no evidence for either steepening or flattening
of the counts. There is thus no evidence for the emergence of a significant new
population of sources (e.g. starforming) at 15.7 GHz flux densities above 0.1
mJy, the flux density level at which we expect starforming galaxies to begin to
contribute. Comparisons with the de Zotti et al. model and the SKADS Simulated
Sky show that they both underestimate the observed number of sources by a
factor of two at this flux density level. We suggest that this is due to the
flat-spectrum cores of radio galaxies contributing more significantly to the
counts than predicted by the models.We thank the staff of the Mullard Radio Astronomy Observatory for maintaining and operating AMI. IHW and CR acknowledge Science and Technology Facilities Council studentships. IHW acknowledges support from the Square Kilometre Array South Africa project and the South African National Research Foundation. This research has made use of NASA’s Astrophysics Data System. We thank the referee for their careful reading of this manuscript.This is the final version of the article. It first appeared from Oxford University Press via http://dx.doi.org/10.1093/mnras/stv296
The faint radio source population at 15.7 GHz - II. Multi-wavelength properties
A complete, flux density limited sample of 96 faint ( mJy) radio
sources is selected from the 10C survey at 15.7 GHz in the Lockman Hole. We
have matched this sample to a range of multi-wavelength catalogues, including
SERVS, SWIRE, UKIDSS and optical data; multi-wavelength counterparts are found
for 80 of the 96 sources and spectroscopic redshifts are available for 24
sources. Photometric reshifts are estimated for the sources with
multi-wavelength data available; the median redshift of the sample is 0.91 with
an interquartile range of 0.84. Radio-to-optical ratios show that at least 94
per cent of the sample are radio loud, indicating that the 10C sample is
dominated by radio galaxies. This is in contrast to samples selected at lower
frequencies, where radio-quiet AGN and starforming galaxies are present in
significant numbers at these flux density levels. All six radio-quiet sources
have rising radio spectra, suggesting that they are dominated by AGN emission.
These results confirm the conclusions of Paper I that the faint, flat-spectrum
sources which are found to dominate the 10C sample below mJy are the
cores of radio galaxies. The properties of the 10C sample are compared to the
SKADS Simulated Skies; a population of low-redshift starforming galaxies
predicted by the simulation is not found in the observed sample.IHW acknowledges a Science and Technology Facilities Council studentship. IHW, MJ, MV acknowledge support from the Square Kilometre Array South Africa project and the South African National Research Foundation. MV is supported by the European Commission Research Executive Agency FP7-SPACE- 2013-1 Scheme (Grant Agreement 607254 - Herschel Extragalactic Legacy Project - HELP). This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. Opinions expressed and conclusions arrived at are those of the authors and not necessarily attributed to the SKA SA. We thank the anonymous referee for their helpful comments.This is the final version of the article. It first appeared from Oxford University Press via http://dx.doi.org/10.1093/mnras/stv190
Engineering a costume for performance using illuminated LED-yarns
A goal in the field of wearable technology is to blend electronics with textile fibers to create garments that drape and conform as normal, with additional functionality provided by the embedded electronics. This can be achieved with electronic yarns (E-yarns), in which electronics are integrated within the fibers of a yarn. A challenge is incorporating non-stretch E-yarns with stretch fabric that is desirable for some applications. To address this challenge, E-yarns containing LEDs were embroidered onto the stretch fabric of a unitard used as part of a carnival costume. A zig-zag pattern of attachment of E-yarns was developed. Tensile testing showed this pattern was successful in preventing breakages within the E-yarns. Use in performance demonstrated that a dancer was unimpeded by the presence of the E-yarns within the unitard, but also a weakness in the junctions between E-yarns was observed, requiring further design work and reinforcement. The level of visibility of the chosen red LEDs within black E-yarns was low. The project demonstrated the feasibility of using E-yarns with stretch fabrics. This will be particularly useful in applications where E-yarns containing sensors are required in close contact with skin to provide meaningful on-body readings, without impeding the wearer
Social contacts and the locations in which they occur as risk factors for influenza infection
The interaction of human social behaviour and transmission is an intriguing aspect of the life cycle of respiratory viral infections. Although age-specific mixing patterns are often assumed to be the key drivers of the age-specific heterogeneity in transmission, the association between social contacts and biologically confirmed infection has not previously been tested at the individual level. We administered a questionnaire to participants in a longitudinal cohort survey of influenza in which infection was defined by longitudinal paired serology. Using a variety of statistical approaches, we found overwhelming support for the inclusion of individual age in addition to contact variables when explaining odds of infection: the best model not including age explained only 15.7% of the deviance, whereas the best model with age explained 23.6%. However, within age groups, we did observe an association between contacts, locations and infection: median numbers of contacts (or locations) reported by those infected were higher than those from the uninfected group in every age group other than the youngest. Further, we found some support for the retention of location and contact variables in addition to age in our regression models, with excess odds of infection of approximately 10% per additional 10 contacts or one location. These results suggest that, although the relationship between age and incidence of respiratory infection at the level of the individual is not driven by self-reported social contacts, risk within an age group may be.published_or_final_versio
Curvature effects on surface electron states in ballistic nanostructures
The curvature effect on the electronic states of a deformed cylindrical
conducting surface of variable diameter is theoretically investigated. The
quantum confinement of electrons normal to the curved surface results in an
effective potential energy that affects the electronic structures of the system
at low energies. This suggests the possibility that ballistic transport of
electrons in low-dimensional nanostructures can be controlled by inducing a
local geometric deformation.Comment: 11 pages, 3 figure
Staphylococcus saprophyticus Recovered from Humans, Food, and Recreational Waters in Rio de Janeiro, Brazil.
Staphylococcus saprophyticus is an important agent of urinary tract infection (UTI) in young women, but information about this pathogen in human microbiota and in common environment is lacking. The aim of this study was to characterize S. saprophyticus isolates from genitoanal microbiota of 621 pregnant women, 10 minas cheese packs, and five beaches in Rio de Janeiro city and compare PFGE profiles of these isolates with five UTI PFGE clusters described in this city. We investigated 65 S. saprophyticus isolates from microbiota, 13 from minas cheese, and 30 from beaches and 32 UTI isolates. Antimicrobial resistance was determined by disk diffusion, MIC by agar dilution, and PCR. Erythromycin-resistance genes erm(C), msr(A), msr(B), mph(C), and lin(A) were found in 93% of isolates. Trimethoprim-sulfamethoxazole resistance correlated with dfrG or dfrA genes. Three cefoxitin-resistant isolates carried the mecA gene. All isolates obtained from cheese were susceptible to all antimicrobial agents. Six of 10 pregnant women with >1 isolate had monoclonal colonization. Isolates from pregnant women shared 100% similarity with UTI PFGE cluster types A and E obtained almost 10 years previously, suggesting temporal persistence of S. saprophyticus. Antimicrobial resistance of beach isolates reflected the profiles of human isolates. Taken together, results indicate a shared source for human and environmental isolates
An automated process for inclusion of package dies and circuitry within a textile yarn
The integration of small electronic components into textile fabrics, without compromising the textile qualities such as flexibility and conformability, is necessary in ensuring wider adoption of electronic textiles. A solution is to use flexible, electronic yarns that incorporate electronic components within the fibers of the yarn. The production of these novel yarns was initially a craft skill, with inclusion of electronics within each section of yarn taking 60–90 minutes. A prototype, automated production process was developed to speed up the manufacturing process to 6 minutes. This paper describes the process, using machinery and methods from both electronics and textiles applications
Belowground DNA-based techniques: untangling the network of plant root interactions
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91591.pdf (publisher's version ) (Closed access)7 p
Experience and Challenges from Clinical Trials with Malaria Vaccines in Africa.
Malaria vaccines are considered amongst the most important modalities for potential elimination of malaria disease and transmission. Research and development in this field has been an area of intense effort by many groups over the last few decades. Despite this, there is currently no licensed malaria vaccine. Researchers, clinical trialists and vaccine developers have been working on many approached to make malaria vaccine available.African research institutions have developed and demonstrated a great capacity to undertake clinical trials in accordance to the International Conference on Harmonization-Good Clinical Practice (ICH-GCP) standards in the last decade; particularly in the field of malaria vaccines and anti-malarial drugs. This capacity is a result of networking among African scientists in collaboration with other partners; this has traversed both clinical trials and malaria control programmes as part of the Global Malaria Action Plan (GMAP). GMAP outlined and support global strategies toward the elimination and eradication of malaria in many areas, translating in reduction in public health burden, especially for African children. In the sub-Saharan region the capacity to undertake more clinical trials remains small in comparison to the actual need.However, sustainability of the already developed capacity is essential and crucial for the evaluation of different interventions and diagnostic tools/strategies for other diseases like TB, HIV, neglected tropical diseases and non-communicable diseases. There is urgent need for innovative mechanisms for the sustainability and expansion of the capacity in clinical trials in sub-Saharan Africa as the catalyst for health improvement and maintained
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