732 research outputs found

    Sources of consumers stress and their coping strategies

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    Europe-wide air pollution modeling from 2000 to 2019 using geographically weighted regression

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    Previous European land-use regression (LUR) models assumed fixed linear relationships between air pollution concentrations and predictors such as traffic and land use. We evaluated whether including spatially-varying relationships could improve European LUR models by using geographically weighted regression (GWR) and random forest (RF). We built separate LUR models for each year from 2000 to 2019 for NO2, O3, PM2.5 and PM10 using annual average monitoring observations across Europe. Potential predictors included satellite retrievals, chemical transport model estimates and land-use variables. Supervised linear regression (SLR) was used to select predictors, and then GWR estimated the potentially spatially-varying coefficients. We developed multi-year models using geographically and temporally weighted regression (GTWR). Five-fold cross-validation per year showed that GWR and GTWR explained similar spatial variations in annual average concentrations (average R(2) = NO2: 0.66; O3: 0.58; PM10: 0.62; PM2.5: 0.77), which are better than SLR (average R(2) = NO2: 0.61; O3: 0.46; PM10: 0.51; PM2.5: 0.75) and RF (average R(2) = NO2: 0.64; O3: 0.53; PM10: 0.56; PM2.5: 0.67). The GTWR predictions and a previously-used method of back-extrapolating 2010 model predictions using CTM were overall highly correlated (R(2) > 0.8) for all pollutants. Including spatially-varying relationships using GWR modestly improved European air pollution annual LUR models, allowing time-varying exposure-health risk models

    Nutritionist’s Variation in Counseling Style and the Effect on Weight Change of Patients Attending a Community Based Lifestyle Modification Program

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    Information concerning the nature of nutritionist-patient relationships is very limited. This qualitative and quantitative study examined nutritionist’s skills, attributes, and beliefs towards nutrition counseling during a lifestyle modification intervention program, and whether this affected the patient’s weight outcome. 24 nutrition consultations were observed during the program and the nutritionists were interviewed for their perception on practice (n = 4). A statistically significant difference was observed between the nutritionists in regard to patient’s weight change after adjustment for age and baseline weight (p < 0.001). Key nutritionist skills identified that influenced weight outcome were meticulous investigation of the underlying obesity cause, identification of the subject’s stage of change, and psychological support

    Magnetic resonance imaging in patients with meningitis induced hearing loss

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    The aim of this multicentre study was to compare T1 with T2 weighted MRI scans of the labyrinth after meningitis and to investigate whether waiting with scanning improved the reliability of diagnosing an ongoing process such as cochlear osteogenesis. Forty-five patients were included who suffered from meningitis induced hearing loss (radiological imaging <1 year after meningitis). Twenty-one gadolinium enhanced T1 and 45 T2 weighted MRI scans were scored by two radiologists regarding the condition of the labyrinth. These radiological observations were compared with the condition of the cochlea as described during cochlear implantation. A higher percentage of agreement with surgery was found for T2 (both radiologists 73%) than for T1 weighted MRI scans (radiologist 1: 62%, radiologist 2: 67%), but this difference is not significant. There was no significant difference between early (0–3 months) and late (>3 months) scanning, showing that radiological imaging soon after meningitis allows early diagnosis without suffering from a lower agreement with surgical findings

    Corrigendum to "Europe-wide air pollution modeling from 2000 to 2019 using geographically weighted regression" [Environ. Int. 168 (2022) 107485]

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    The authors regret an error in the colour palette in legends and maps in Fig 2 and Fig 3 in the original published article. Revised figures (Fig 2 & Fig 3) are shown below. The correct statement in Line 6 in the 3rd paragraph of Section 3.2 should be written as follows: In the early 2000s, the PM 10 concentrations were above 15 ”g/m 3 in all regions except in the Alps, Ireland, and northern Europe. In the recent 5 years, only the northern part of Italy, eastern Europe, and the Balkans had higher PM 10 concentrations (>20 ”g/m 3) than the rest of Europe. The authors would like to apologise for any inconvenience caused

    Effective risk relievers for dimensional perceived risks on mail-order purchase: a case study on speciality foods in the UK

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    This article examines the effective risk relievers for different dimensions of perceived risk on mail-order purchase of food products. The sample comprised 1,600 active and inactive mail-order specialty food shoppers in the UK. The analysis focused on the correlation coefficients between consumers' levels of perceived risk and their weight on the importance of the risk relievers. Amongst 15 risk relievers, the results implied that there are certain risk relievers attached to higher levels of importance by consumers, who perceive higher levels of risks in certain aspects of mail-order purchase. Therefore, mail-order companies should promote the effective risk relievers to reduce specific dimensions of perceived risks

    Europe-wide air pollution modeling from 2000 to 2019 using geographically weighted regression

    Get PDF
    Previous European land-use regression (LUR) models assumed fixed linear relationships between air pollution concentrations and predictors such as traffic and land use. We evaluated whether including spatially-varying relationships could improve European LUR models by using geographically weighted regression (GWR) and random forest (RF). We built separate LUR models for each year from 2000 to 2019 for NO2, O3, PM2.5 and PM10 using annual average monitoring observations across Europe. Potential predictors included satellite retrievals, chemical transport model estimates and land-use variables. Supervised linear regression (SLR) was used to select predictors, and then GWR estimated the potentially spatially-varying coefficients. We developed multi-year models using geographically and temporally weighted regression (GTWR). Five-fold cross-validation per year showed that GWR and GTWR explained similar spatial variations in annual average concentrations (average R2 = NO2: 0.66; O3: 0.58; PM10: 0.62; PM2.5: 0.77), which are better than SLR (average R2 = NO2: 0.61; O3: 0.46; PM10: 0.51; PM2.5: 0.75) and RF (average R2 = NO2: 0.64; O3: 0.53; PM10: 0.56; PM2.5: 0.67). The GTWR predictions and a previously-used method of back-extrapolating 2010 model predictions using CTM were overall highly correlated (R2 > 0.8) for all pollutants. Including spatially-varying relationships using GWR modestly improved European air pollution annual LUR models, allowing time-varying exposure-health risk models

    Buying seafood: Understanding barriers to purchase across consumption segments

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    Most consumers have positive attitudes toward seafood and consider it to be an important part of a healthy and balanced diet. However when purchasing seafood, consumers also weigh up various risks which may act as barriers to consumption. In this paper, the findings of an online survey of Australian consumers (. n=. 899) which explored both drivers and barriers to seafood consumption are discussed. The primary focus of this paper is to explore the perceived risks of seafood consumption and how these vary across consumption levels. Perceived risks associated with seafood consumption include functional, social, physical, psychological, and financial risk. With the exceptions of physical and financial risk, perceptions of risk varied across regular, light and very light seafood consumption segments. Lighter fish consumers were more likely to perceive functional risk associated with being less informed and less familiar with fish, experience more difficulties with selecting fish, recognising if fish is fresh, and preparing and serving fish than more regular fish consumers. Regular seafood consumers were less likely than lighter seafood consumers to perceive social risk arising from other members of their household not liking fish. Moreover, regular seafood consumers were less likely to perceive psychological risks associated with unpleasant past experiences or unpleasant sensory qualities, such as not liking the smell of fish and not liking to touch fish. Based on these results strategies for reducing perceived risks as a means of stimulating fish consumption are proposed for further investigation. © 2012
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