41 research outputs found
Values and value conflicts in snack providing of Dutch, Polish, Indonesian and Italian mothers
This study investigates which values play a role in the decision of mothers about snacks to offer to their young children with a focus on the value conflicts that might occur. The study explores whether national culture is reflected in mothers' values in snack choice for their young children and the related value conflicts. Semi-structured interviews with 67 mothers of 2–7 years old children divided over 4 national cultures (Dutch, Polish, Indonesian and Italian) were conducted. Questions were asked about their values and value conflicts when providing a snack to their young children. Four key themes could be distinguished to cluster the mentioned values. The health-related key theme includes all values that are associated with the healthiness of the product, the child-related key theme all values that connects to the child, the time-related key theme includes the value convenience and the product-related key theme includes all values that are associated with the product itself. Dutch and Polish mothers mostly valued health of the snack, whereas Indonesian and Italian mothers mostly valued the preference of their child. Data also shows specific prevalence between values and nationalities: convenience was very important for Dutch mothers, valuing organic food was typical for Polish mothers, religion played a role for Indonesian mothers, while Italian mothers placed more value on brand compared to the mothers of other cultures. In all cultures, the value conflicts mentioned were mainly related to health.</p
An intercontinental analysis of food safety culture in view of food safety governance and national values
Taking food safety culture into account is a promising way to improve food safety performance in the food industry. Food safety culture (FS-culture) research is expanding from an organisational perspective to include characteristics of the internal and external company environment. In this study, the prevailing food safety culture in 17 food companies from four countries on three continents (Africa, Asia and Europe) was assessed in view of food safety governance and national values. The internal environment characteristics, i.e. food safety vision, food safety program and food production system vulnerability, were also assessed. Statistical analysis revealed little variation in FS-culture scores between the companies within the same country. Overall the FS-culture for Greek and Zambian companies was scored proactive, while for Chinese and Tanzanian companies an active score was achieved. Both the internal and external company environment seemed to influence the prevailing FS-culture. Cluster analysis showed that Tanzanian and Zambian companies exhibited similarities in the implementation of food safety programs, and in their national values and food safety governance as compared to Greece and China. Food safety governance was reflected in the food safety programs and supportiveness of the organisation to food safety and hygiene. All cultural dimensions were correlated with risk perceptions, with masculinity and long-term orientation also significantly correlated with the enabling conditions and attitude. Understanding how national values and food safety governance approaches differently influence food safety culture is expected to enable formulation of best approaches tailored for companies operating in countries with different company environments, to improve food safety performance.</p
Possible causes of variation in acrylamide concentration in French fries prepared in food service establishments: an observational study
Acrylamide is a probable human carcinogen, and its presence in a range of fried and oven-cooked foods has raised considerable health concern world-wide. Dietary intake studies observed significant variations in acrylamide concentrations, which complicate risk assessment and the establishment of effective control measures. The objective of this study was to obtain an insight into the actual variation in acrylamide concentrations in French fries prepared under typical conditions in a food service establishment (FSE). Besides acrylamide, frying time, frying temperature, and reducing sugars were measured and the actual practices at receiving, thawing and frying during French fries preparation were observed and recorded. The variation in the actual frying temperature contributed most to the variation in acrylamide concentrations, followed by the variation in actual frying time; no obvious effect of reducing sugars was found. The lack of standardised control of frying temperature and frying time (due to inadequate frying equipment) and the variable practices of food handlers seem to contribute most to the large variation and high acrylamide concentrations in French fries prepared in a restaurant type of FSE as compared to chain fast-food services, and institutional caterers. The obtained insights in this study can be used to develop dedicated control measures in FSE, which may contribute to a sustainable reduction in the acrylamide intake
An intercontinental analysis of food safety culture in view of food safety governance and national values
Taking food safety culture into account is a promising way to improve food safety performance in the food industry. Food safety culture (FS-culture) research is expanding from an organisational perspective to include characteristics of the internal and external company environment. In this study, the prevailing food safety culture in 17 food companies from four countries on three continents (Africa, Asia and Europe) was assessed in view of food safety governance and national values. The internal environment characteristics, i.e. food safety vision, food safety program and food production system vulnerability, were also assessed. Statistical analysis revealed little variation in FS-culture scores between the companies within the same country. Overall the FS- culture for Greek and Zambian companies was scored proactive, while for Chinese and Tanzanian companies an active score was achieved. Both the internal and external company environment seemed to influence the pre- vailing FS-culture. Cluster analysis showed that Tanzanian and Zambian companies exhibited similarities in the implementation of food safety programs, and in their national values and food safety governance as compared to Greece and China. Food safety governance was reflected in the food safety programs and supportiveness of the organisation to food safety and hygiene. All cultural dimensions were correlated with risk perceptions, with masculinity and long-term orientation also significantly correlated with the enabling conditions and attitude. Understanding how national values and food safety governance approaches differently influence food safety culture is expected to enable formulation of best approaches tailored for companies operating in countries with different company environments, to improve food safety performance
Etude des matériaux corrélés de terres rares par diffusion résonante inélastique des rayons X
PARIS-BIUSJ-Biologie recherche (751052107) / SudocSudocFranceF
Caracterization of molecules reorganisation for diblock copolymer and development of resonant soft X-ray reflectivity
Un copolymère dibloc se compose de deux blocs liés par des liaisons covalentes. Ces blocs peuvent être choisis avec des propriétés spécifiques : par exemple, les diblocs copolymères amphiphiles sont composés d un bloc hydrophile et l autre hydrophobe. On peut les utiliser pour obtenir une couche mince de polymère dont la composition de surface peut être modifiée entre hydrophile et hydrophobe. Lorsque l environnement est modifié, une réorganisation moléculaire de la surface se produit et réduit l énergie de surface. Cependant, on en sait peu sur la structure du volume de la couche mince pendant cette réorganisation. L investigation de la réorganisation de surface, dans le volume et leur corrélation sont donc les principaux objectifs de cette thèse. La réflectivité de rayons X ou de neutrons est une technique puissante pour étudier la structure interne des couches minces normalement à leur surface. L XPS quantifie la composition chimique de la surface ; la mesure de l angle de contact la caractérise qualitativement. Enfin, le MEB et l AFM sondent la topographie de surface de la couche à des échelles micro- et nanométrique. Nous détaillons la morphologie de surface des couches minces de copolymères diblocs en fonction de l épaisseur initiale. Ensuite, la dynamique de formation de l ordre lamellaire du volume est présentée. Enfin, on compare des couches minces de polymère sur un substrat hydrophile ou hydrophobe. Nous développons aussi une nouvelle technique de réflectivité des rayons X mous résonante pour obtenir un contraste supérieur entre les deux blocs. Nous avons appliqué cette technique à la structure lamellaire formée par notre copolymère dibloc symétriquePARIS-BIUSJ-Physique recherche (751052113) / SudocSudocFranceF
The Speed of Change
In the early 1900s the motor-vehicle (car, bus, lorry or motorcycle) was introduced in sub-Saharan Africa. Initially the plaything and symbol of colonial domination, the motor-vehicle transformed the economic and social life of the continent. Indeed, the motor-vehicle is arguably the single most important factor for change in Africa in the twentieth century. A factor for change that thus far has been neglected in research and literature. Yet its impact extends across the totality of human existence; from ecological devastation to economic advancement, from cultural transformation to political change, through a myriad of other themes. This edited volume of eleven contributions by historians, anthropologists and social and political scientists explores aspects of the social history and anthropology of the motor-vehicle in Africa
The speed of change: motor vehicles and people in Africa, 1890-2000
In the early 1900s the motor-vehicle (car, bus, lorry or motorcycle) was introduced in sub-Saharan Africa. Initially the plaything and symbol of colonial domination, the motor-vehicle transformed the economic and social life of the continent. Indeed, the motor-vehicle is arguably the single most important factor for change in Africa in the twentieth century. A factor for change that thus far has been neglected in research and literature. Yet its impact extends across the totality of human existence; from ecological devastation to economic advancement, from cultural transformation to political change, through a myriad of other themes. This edited volume of eleven contributions by historians, anthropologists and social and political scientists explores aspects of the social history and anthropology of the motor-vehicle in Africa
Long-term results after a triple arthrodesis of the hindfoot:Function and satisfaction in 36 patients
The long-term functional results of a triple arthrodesis of the hindfoot are not well known. In this retrospective cohort study we therefore investigated pain, function and aligment of the tibiotalar joint, patient satisfaction with the procedure and the prevalence of osteoarthritis (OA) of the tibiotalar joint after a median follow-up of six years. We also aimed to investigate whether there are patient and surgical characteristics associated with the outcome. Patients who underwent a triple arthrodesis for OA between January 1992 and July 2002 were invited to participate. A clinical examination was performed, the Ankle-Hindfoot Scale was completed, and radiographs were taken. Patient characteristics (e.g., age, gender and the indication for operation) and surgical characteristics (e.g., fixation material and use of bone graft) were collected. Sixty-one percent (22 patients) of the patients had a good total score on the Ankle-Hindfoot Scale. Nineteen patients (53%) were satisfied with the result of the operation and 47% of the patients had radiographic OA of the tibiotalar joint. In a univariate regression analysis, male gender and the score on the Ankle-Hindfoot Scale were significantly associated with radiographic OA. Patient satisfaction was significantly associated with a higher score on the Ankle-Hindfoot Scale and better dorsi-flexion of the ankle. Our study shows that 61% of the procedures in 36 patients with a triple arthrodesis for OA had a good score on the Ankle-Hindfoot Scale. Radiographic OA of the ankle was present in 47% of the cases and was not related to patient satisfaction. No patient characteristics or surgical characteristics were associated with the score on the Ankle-Hindfoot Scale.</p