Littérature scientifique sur le sujet « Nutrients perception »
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Articles de revues sur le sujet "Nutrients perception"
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Lal, Milan Kumar, Eshita Sharma, Rahul Kumar Tiwari, Rajni Devi, Udit Nandan Mishra, Richa Thakur, Rucku Gupta et al. « Nutrient-Mediated Perception and Signalling in Human Metabolism : A Perspective of Nutrigenomics ». International Journal of Molecular Sciences 23, no 19 (25 septembre 2022) : 11305. http://dx.doi.org/10.3390/ijms231911305.
Texte intégralRésumé :
The interaction between selective nutrients and linked genes involving a specific organ reveals the genetic make-up of an individual in response to a particular nutrient. The interaction of genes with food opens opportunities for the addition of bioactive compounds for specific populations comprising identical genotypes. The slight difference in the genetic blueprints of humans is advantageous in determining the effect of nutrients and their metabolism in the body. The basic knowledge of emerging nutrigenomics and nutrigenetics can be applied to optimize health, prevention, and treatment of diseases. In addition, nutrient-mediated pathways detecting the cellular concentration of nutrients such as sugars, amino acids, lipids, and metabolites are integrated and coordinated at the organismal level via hormone signals. This review deals with the interaction of nutrients with various aspects of nutrigenetics and nutrigenomics along with pathways involved in nutrient sensing and regulation, which can provide a detailed understanding of this new leading edge in nutrition research and its potential application to dietetic practice.
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Oldroyd, Giles E. D., et Ottoline Leyser. « A plant’s diet, surviving in a variable nutrient environment ». Science 368, no 6486 (2 avril 2020) : eaba0196. http://dx.doi.org/10.1126/science.aba0196.
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As primary producers, plants rely on a large aboveground surface area to collect carbon dioxide and sunlight and a large underground surface area to collect the water and mineral nutrients needed to support their growth and development. Accessibility of the essential nutrients nitrogen (N) and phosphorus (P) in the soil is affected by many factors that create a variable spatiotemporal landscape of their availability both at the local and global scale. Plants optimize uptake of the N and P available through modifications to their growth and development and engagement with microorganisms that facilitate their capture. The sensing of these nutrients, as well as the perception of overall nutrient status, shapes the plant’s response to its nutrient environment, coordinating its development with microbial engagement to optimize N and P capture and regulate overall plant growth.
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Verbeke, Wim, Isabelle Sioen, Zuzanna Pieniak, John Van Camp et Stefaan De Henauw. « Consumer perception versus scientific evidence about health benefits and safety risks from fish consumption ». Public Health Nutrition 8, no 4 (juin 2005) : 422–29. http://dx.doi.org/10.1079/phn2004697.
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AbstractObjectiveTo investigate the gap between consumer perception and scientific evidence related to health benefits and safety risks from fish consumption.DesignConsumer perceptions from a cross-sectional survey in March 2003 in Belgium were compared with scientific evidence based on a literature review.MethodA quota sampling procedure was used with age as quota control variable. Subjects completed a self-administered questionnaire including health benefit beliefs from fish, fish content and effect beliefs for nutrients and harmful substances.SubjectsAdults (n=429), who were the main person responsible for food purchasing in the household (284 women; 145 men), aged 18–83 years, from different regional, education, family size and income groups.ResultsFish is predominantly perceived as a healthy food that reduces risk for coronary heart disease, which corroborates scientific evidence. This perception is stronger among women than among men. In contrast with scientific evidence, 46% of the consumers believe that fish contains dietary fibre, whereas less than one-third is aware that fish contains omega-3 fatty acids and that this nutrient has a positive impact on human health. The gap between perception and evidence is larger among consumers with lower education. In general, consumers are better aware of the content and effect of harmful substances than of nutrients in fish.ConclusionsDespite conclusive evidence about the content and positive effect of omega-3 fatty acids in fish, related consumer awareness and beliefs are poor and often wrong. This study exemplifies the need for nutrition education and more effective communication about the health benefits of fish consumption.
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Raybould, H. E. « Visceral perception : sensory transduction in visceral afferents and nutrients ». Gut 51, Supplement 1 (1 juillet 2002) : i11—i14. http://dx.doi.org/10.1136/gut.51.suppl_1.i11.
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Delompré, Thomas, Elisabeth Guichard, Loïc Briand et Christian Salles. « Taste Perception of Nutrients Found in Nutritional Supplements : A Review ». Nutrients 11, no 9 (2 septembre 2019) : 2050. http://dx.doi.org/10.3390/nu11092050.
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Nutritional supplements are prescribed when one’s nutritional status is not conducive to good health. These foodstuffs constitute concentrated sources of nutrients such as vitamins, minerals, amino acids, and fatty acids. For nutritional supplements to be effective, patients must consume the amount that has been prescribed for the recommended period of time. Therefore, special attention must be given to the sensory attributes of these products. Indeed, the presence of active compounds can cause an off-taste or aftertaste. These negative sensations can lead to a reduction in the consumption of nutritional supplements and reduce the effectiveness of the treatment. In this manuscript, we provide an overview of the sensory characteristics and the sensing receptor mechanism of the main compounds present in oral nutritional supplements, such as amino acids, minerals, fatty acids, and vitamins. Part of this article is devoted to the development of new masking strategies and the corresponding potential influence at the industrial level.
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Andrade, Fabiola Bof de, Arnaldo de França Caldas Junior, Pedro Makumbundu Kitoko et Eliana Zandonade. « The relationship between nutrient intake, dental status and family cohesion among older Brazilians ». Cadernos de Saúde Pública 27, no 1 (janvier 2011) : 113–22. http://dx.doi.org/10.1590/s0102-311x2011000100012.
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The aim of this study was to investigate the relationship between inadequate nutrient intake, oral health and family cohesion. This was a cross-sectional study with a sample of 887 non-institutionalized elderly people from Vitória, Espírito Santo State, Brazil. Oral examination was performed by trained and calibrated examiners and three measurements were considered: number of posterior occluding pairs of natural teeth (POP), number of teeth and overall dental status. Nutrient intake was assessed by a 24-hour diet recall interview. The elderly person's perception of family cohesion was assessed using the family adaptability and cohesion scale. People with no POP were more likely than those with 5 or more POP to have inadequate intake of vitamin C (OR = 2.79; 95%CI: 1.16-6.71), calcium (OR = 3.74; 95%CI: 1.69-8.25), riboflavin (OR = 2.49; 95%CI: 1.10-5.64) and zinc (OR = 3.43; 95%CI: 1.07-10.94). There was no association between elderly people's perceptions of family cohesion and inadequate intakes. It was concluded that oral health is related to inadequate intake of important nutrients among non-institutionalized elderly people.
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Moon, Ji-Sun, et Jung-Hee Lee. « Eyelash Make-up and Treatment Recognition Division for Adult Women Product Satisfaction Study of Eyelash Nutrients ». Korean Society of Beauty and Art 23, no 4 (20 décembre 2022) : 127–42. http://dx.doi.org/10.18693/jksba.2022.23.4.127.
Texte intégralRésumé :
This study aims to understand the relationship between adult women's perception of eyelash cosmetics and their satisfaction with eyelash nutrients. From October 2021 to April 2022, 203 adult women were surveyed using an online questionnaire to collect data on eyelash nutrient product satisfaction and general characteristics.
The data was analyzed using SPSS v. 25 Statistic program package. As a result of investigating using frequency analysis, factor analysis, technical statistical analysis, integrated variable analysis, correlation, and multiple regression analysis, it was found that functional recognition was highest in both eyelash makeup recognition and eyelash application recognition. Satisfaction with eyelash nutrients appeared in the order of product quality, product safety, and product sensitivity. It was confirmed that the higher the cosmetic, functional, and psychological awareness of eyelashes, the higher the product satisfaction with eyelash nutrients. (p<.05). As a result, it was confirmed that the higher the functional and psychological awareness of eyelash beauty among adult women, the higher the awareness of eyelash nutrients. By empirically analyzing the causal relationship between the awareness of eyelash beauty and eyelash nutrition, this research can provide quantitative data on the academic and topical aspects of the use of eyelash nutrition in the beauty industry.
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Chiba, Tsuyoshi, Nanae Tanemura et Chiharu Nishijima. « The Perception of Minerals and Their Prevalence in Fortified Foods and Supplements in Japan ». Nutrients 14, no 13 (22 juin 2022) : 2586. http://dx.doi.org/10.3390/nu14132586.
Texte intégralRésumé :
People’s intake of some minerals does not meet the nutrient reference values even in high-income countries. Recently, the deficiency of zinc and/or selenium has been considered to cause greater risk of COVID-19 infection and severity. To investigate consumer awareness, we conducted a cross-sectional questionnaire online survey among Japanese people (7500 males and 7500 females) concerning their perceptions of each mineral and the prevalence of mineral-fortified foods and/or mineral supplements. People’s perception of each mineral varied: the highest was for calcium (91.8%) and the lowest was for selenium (44.7%). In addition, only a portion of participants believed that they consumed a sufficient amount of each mineral; the highest was sodium (23.7%), and the lowest was manganese (5.2%). In addition, 18.2% of them felt that they could not consume enough sodium, even though most of the Japanese’s intake is excessive. Among mineral-fortified-food and/or mineral-supplement users, the purposes for these products were to maintain health (80.6%), supplement nutrients (48.0%), and prevent infectious diseases (23.2%). Only 18.4% of participants knew what amount they took. In conclusion, education is needed to prevent not only the insufficiency/deficiency of each mineral but also an excess intake of sodium.
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Andrade, Álvaro Antônio Xavier de, Rafael da Silva Teixeira, Rodrigo Nogueira de Sousa, Reinaldo Duque Brasil Landulfo Teixeira, Dênis Antônio da Cunha et Emanuelle Mêrces Barros Soares. « A Case Study on the Dairy Project “Full Bucket” in Brazil : Socioeconomic and Environmental Characteristics in Areas Under Its Guidelines ». Journal of Agricultural Science 11, no 3 (15 février 2019) : 515. http://dx.doi.org/10.5539/jas.v11n3p515.
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Socioeconomic and environmental characteristics in areas under Brazilian Balde Cheio Project (BCP) were evaluated. Questionnaires were applied to identify productive and socioeconomic characteristics of small farmers, and farmers’ perceptions on the implementation and operation of BCP. Soil and water samples were also taken. It seems that farmer’s perception about the BCP is associated to their socioeconomic reality; while environmental issue does not have the same relevance. According to the farmers, it was verified increase of productivity, and financial income. All farmers agree that they have not followed carefully the NGO guidelines, which is a matter of concern, because the differences among reality farms. In studied soils were observed that organic carbon levels decreased in areas under the BCP management. The NO32-, Cl- and SO42- concentrations in the waters samples were below the maximum stipulated by Brazilian environmental legislation. However, it should be highlighted that high nutrient addition and low C input in the system, can result in high losses of nutrients and also CO2 into the atmosphere.
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Ueda, Yoshiaki, et Shuichi Yanagisawa. « Perception, transduction, and integration of nitrogen and phosphorus nutritional signals in the transcriptional regulatory network in plants ». Journal of Experimental Botany 70, no 15 (5 avril 2019) : 3709–17. http://dx.doi.org/10.1093/jxb/erz148.
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Abstract Nitrate and phosphate ions are major sources of nitrogen and phosphorus for plants. In addition to their vital roles as indispensable macronutrients, these ions function as signalling molecules and induce a variety of responses. Plants adapt to different levels of nutrients by altering their gene expression profile and subsequent physiological and morphological responses. Advances made in recent years have provided novel insights into plant nutrient sensing and modulation of gene expression. Key breakthroughs include elucidation of the mechanisms underlying post-translational regulation of NIN-LIKE PROTEIN (NLP) and PHOSPHATE STARVATION RESPONSE (PHR) family transcription factors, which function as master regulators of responses to nitrate and phosphate starvation, respectively. Determination of the mechanisms whereby these nutrient signals are integrated through NIGT1/HHO family proteins has likewise represented important progress. Further studies have revealed novel roles in nutrient signalling of transcription factors that have previously been shown to be associated with other signals, such as light and phytohormones. Nitrate and phosphate signals are thus transmitted through an intricate gene regulatory network with the help of various positive and negative transcriptional regulators. These complex regulatory patterns enable plants to integrate input signals from various environmental factors and trigger appropriate responses, as exemplified by the regulatory module involving NIGT1/HHO family proteins. These mechanisms collectively support nutrient homeostasis in plants.
Thèses sur le sujet "Nutrients perception"
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MILANESI, RICCARDO. « Metabolism and signaling crosstalk regulates nutrients perception and mitochondrial respiration in eukaryotic model systems ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/375389.
Texte intégralRésumé :
Tutti gli eucarioti presentano sistemi di percezione per le fonti di carbonio e azoto tramite la quale la crescita cellulare è coordinata con lo stato nutrizionale. In particolare, I metaboliti della parte alta della glicolisi influenzano lo stato di attivazione della via di PKA e di Snf1/AMPK/SnRK1 in lievito, mammifero e piante. Mentre, la via del complesso di TORC1 è al centro di un sistema di segnalazione per la disponibilità di amminoacidi. Di particolare interesse è il meccanismo di interazione tra la via di Snf1/AMPK e Ras/PKA con il metabolismo del glucosio la cui regolazione non è tuttora compresa nel dettaglio.
In questa tesi, si dimostra che le vie di Snf1/AMPK e Ras/PKA sono indipendentemente connesse al metabolismo del glucosio tramite la sintesi di glucosio-6 fosfato e fruttosio 1,6 bisfosfato. Inoltre, l’attività della chinasi Snf1/AMPK è risultata essere regolata dalla velocità di importo del glucosio nelle cellule, piuttosto che dalla sua disponibilità nel terreno di coltura. Esclusi meccanismi alternativi, il glucosio-6 fosfato potrebbe influenzare lo stato di fosforilazione e attivazione di Snf1 tramite un’interazione diretta e causando una maggiore accessibilità alle fosfatasi della treonina regolatoria T210.
I nutrienti hanno inoltre un forte impatto sull’invecchiamento cellulare e microorganismi eucariotici e gli organismi pluricellulari a bassa complessità possono essere utilizzati come organismi modello per lo studio di tali processi.
In collaborazione con altri gruppi di ricerca, sono state studiate le proprietà del fagiolo Vigna unguicolata nel prevenire l’invecchiamento e la neuro-degenerazione. Gli estratti di fagiolo hanno aumentato le aspettative di vita di Saccharomyces cerevisiae, Drosophila melanogaster, Caenorhabditis elegans e di cellule di mammifero. Inoltre, gli stessi estratti hanno mostrato proprietà neuroprotettive riducendo l’aggregazione dell’α-sinucleina in vitro e la morte di neuroni dopaminergici in Caenorhabditis elegans.
Nella seconda parte della tesi vengono investigati nuovi approcci per il trattamento del carcinoma epatocellulare. Uno studio preliminare ha infatti dimostrato che, in lievito, l’abbinamento della delezione di SNF1 e l’aggiunta di metionina determinano un riarrangiamento metabolico ed una riduzione della crescita cellulare. Essendo il fegato l’organo in cui prende luogo la maggior parte del metabolismo della metionina e della S-adenosilmetionina (SAM), abbiamo investigato l’effetto dell’inibizione di AMPK e l’aggiunta di metionina sul fenotipo tumorale di linee cellulari derivate dal carcinoma epatocellulare. Le condizioni analizzate hanno mostrato di essere in grado di aumentare l’attività del ciclo di Krebs e la quantità di ATP derivata dalla respirazione mitocondriale. Questo, in associazione ad una riduzione dell’aggressività delle linee di carcinoma epatocellulare HepG2 e Huh7.
La S-adenosilmetionina è un’importante molecola per il trattamento dell’alcolismo e della depressione, inoltre è utilizzata nella sintesi di melatonina, antibiotici e flavonoidi. Nell’ultima parte di questa tesi viene presentato lo stato di avanzamento di un progetto di ingegnerizzazione del batterio del suolo Pseudomonas putida per la produzione di SAM. Il disegno sperimentale prevede la duplicazione della sua via di sintesi con una via sintesi resistente ai controlli endogeni ed accoppiata al ciclo di Krebs. Questo ha implicato lo studio delle vie di anaplerosi del ciclo di Krebs ed ha evidenziato come le informazioni ottenute in Escherichia coli non siano sempre traslabili su altri tipi di batteri.Receptors and signal transduction pathways have been studied for decades depicting the mechanism responsible for the perception of nutrients and growth factors. Nevertheless, an increasing amount of evidence suggest that signal transduction is inherently connected also to intracellular metabolism through protein-metabolite interactions (PMIs) between metabolites and proteins of the signal transduction pathways. All the eukaryotes present conserved pathway for the sensing of carbon and nitrogen sources responsible for the coordination of cell growth with its nutritional state. Metabolites belonging to the upper glycolysis strongly influence PKA and Snf1/AMPK/SnRK1 activation state in yeast and mammalian and plants cells. In the meanwhile, components of the TORC1 pathway result to be the center of interaction for the sensing of amino acids availability. Interestingly, the crosstalk between Snf1/AMPK and Ras/PKA pathways, as well as glucose regulation of Snf1/AMPK activity in yeast is not completely understood yet. In the present thesis, we demonstrate that Snf1/AMPK and Ras/PKA pathway are independently controlled by glucose metabolism through the synthesis of glucose 6-phosphate and fructose 1,6-bisphosphate, respectively. Hence, we proved that Snf1/AMPK activation state is controlled by glucose transport rate and not by glucose availability, providing evidence suggesting that glucose 6-phosphate may directly interact with Snf1 complex and enhance the exposure to phosphatases of the phosphorylated regulatory threonine (T210). Nutrients also have a strong impact on cellular aging and eukaryotic microorganisms or simple pluricellular organisms can be useful model organisms for the study of the aging process. In a collaborative study, we evaluated the properties of the bean Vigna unguicolata as functional food ameliorating aging and neurodegeneration. Bean extracts extend the life span of Saccharomyces cerevisiae, Drosophila melanogaster, Caenorhabditis elegans and mammalian cells. Furthermore, bean extracts also showed neuroprotective properties, reducing the in vitro aggregation of α-synuclein and decreasing the age-related degeneration of cephalic dopaminergic neurons in Caenorhabditis elegans. In the second part of the thesis, we investigate new putative approaches for the treatment of hepatocellular carcinoma (HCC). A preliminary study showed that the coupling of SNF1 deletion with methionine supplementation rewires yeast metabolism and reduces its proliferation. Being methionine and S-adenosylmethionine metabolism mainly active in the liver, we investigated whether AMKP inhibition coupled with a high methionine dosage can ameliorate the phenotype of hepatocellular carcinoma cell lines. These conditions increased the activity of the TCA cycle and the amount of ATP derived from respiration. Furthermore, this reduction of the Warburg phenotype was associated with a reduction of the aggressiveness of the hepatocellular carcinoma cell lines HepG2 and Huh7. S-adenosylmethionine is also an important fine chemical used in the treatment of alcoholism and depression or for the synthesis of melatonin, antibiotics and flavonoids. In the last part of this thesis, I present the advancement of the engineering of the environmental bacteria Pseudomonas putida for the overproduction of SAM. To pursue this goal, we designed a feedback-free inducible pathway to duplicate SAM production pathways in P. putida and coupling it with the TCA cycle. The building of this engineered strain forced us to deal with the robustness of P. putida central carbon metabolism and to investigate possible anaplerotic reaction replenishing the TCA cycle. This allowed us to gain useful details on the regulation of the TCA metabolism in P. putida and highlighted that information acquire in enterobacteria Escherichia coli are not always translatable to other type of bacteria.
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Schwab, Elizabeth Rose. « Maumee River Watershed Farmers’ Perceptions of Nutrient Loss Risk ». The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587662279052842.
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Ritter, Tara Eve. « Exploring the Relationship between Risk Perception and Farmer Nutrient Management Decisions ». The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343243182.
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Wicks, Mariaan. « The validation of a suitable nutrient profiling model for South Africa / Mariaan Wicks ». Thesis, North-West University, 2012. http://hdl.handle.net/10394/9253.
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Aim
Nutrient profiling is defined as “the science of classifying or ranking food items according to their nutritional composition for reasons related to preventing disease and promoting health, and can be used to govern the criteria under which nutrient and/or health claims may be made”. The validation of a nutrient profiling model (NPM) is an essential part of the model development process, and is extremely important for the model to meet basic scientific criteria. This mini-dissertation investigated the content and convergent validity of a suitable NPM for South Africa.
Method
Content validity was tested for by comparing the NPM classification of 131 “indicator” foods with the classification of the “indicator” foods by the Food Based Dietary Guidelines (FBDGs). Convergent validity was tested for by comparing the standard ranking of a representative data set of food items (n = 128) by nutrition experts with the classification of the food items by the NPM. The questionnaire asked respondents to rank 40 foods (electronically generated from a master list of 128 foods) according to the nutritional information provided from “more healthy” to “less healthy” using a six point Likert scale. The 128 foods were selected to be representative of the South African diet. These questionnaires were sent via e-mail to all full members (n = 1105) of the Association of Dietetics in South Africa. The draft “Guiding principles and framework manual for the development or adaptation of nutrient profile models” dated 22 February 2011 (WHO, 2011), was used as a guide in the validation process of the NPM.
Results
The NPM showed good content validity: the way that the NPM categorises foods correspond well with that of the FBDGs (kappa statistic = 0.73). Two hundred and ninety two responses were received (26.4%) from the nutrition experts, these responses were used to rank the 128 foods by the average score which they received from the nutrition experts. The NPM also showed good convergent validity: the NPM classification of foods had a good correlation with the standard ranking of foods by dietitians (r = 0.853; p = 0.0001).
Conclusion
The NPM demonstrated good content validity by classifying food items in way that supports the FBDGs with the exception of a few processed food items and combined food items. The NPM also demonstrated good convergent validity by classifying food items in accordance with the views of nutrition experts in South Africa.Thesis (MSc (Dietetics))--North-West University, Potchefstroom Campus, 2013.
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K, C. Sharda. « ROLE OF ECOLOGICAL SANITATION FOR IMPROVING LIVELIHOOD IN RURAL AREAS OF NEPAL ». Kyoto University, 2020. http://hdl.handle.net/2433/259761.
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Giskes, Katrina. « Socioeconomic position, dietary intakes, perceptions of health and diet among Australian adolescents and adults ». Thesis, Queensland University of Technology, 2002. https://eprints.qut.edu.au/15871/1/Katrina_Giskes_Thesis.pdf.
Texte intégralRésumé :
In Australia, and other Western countries, there are marked socioeconomic inequalities in mortality from chronic, diet-related diseases. Research in these countries has shown that adults from low socioeconomic backgrounds experience greater morbidity and mortality from these conditions compared to their higher-status counterparts. In recent decades, much research has focused on factors that may contribute to these inequalities. Dietary intakes are thought to account for a large proportion of the socioeconomic variability in health, and there is some evidence suggesting that the psychosocial foundations laid down in adolescence are important influences on these dietary intakes.
In Australia, however, existing research examining socioeconomic differences in dietary intakes is limited. Most previous research has looked at dietary intakes in adulthood, and have not considered examining for socioeconomic differences in adolescence. Furthermore, not much is known about the health and nutrition-related beliefs, attitudes and perceptions of adolescents that may contribute to socioeconomic differences in dietary intakes. This study examined these issues by analysing for socioeconomic differences in food and nutrient intakes among both adolescents and adults. It also investigated some health and nutrition-related beliefs, attitudes and perceptions of adolescents from different socioeconomic backgrounds.
Data from a national cross-sectional survey, the 1995 Australian National Nutrition Survey, were analysed to determine socioeconomic differences in food and nutrient intakes. Qualitative interviews were undertaken with adolescents to investigate their health and nutrition-related beliefs, attitudes and perceptions.
The results show that compared to adults, there is less socioeconomic inequality in food and nutrient intakes among adolescents. Intakes of some anti-oxidant vitamins and folate were directly related with socioeconomic position among adults. Adults from low socioeconomic backgrounds were less likely to consume fruits or vegetables. They consumed a lower variety of fruits and vegetables and were less likely to choose fruits and vegetables high in vitamin A, folate and vitamin C. The results showed that these differences may be due to adults from low socioeconomic backgrounds being less likely to want to increase their fruit and vegetable intakes, and perceiving price and storage as barriers to doing so.
There were a small number of socioeconomic differences in adolescents' beliefs, attitudes and perceptions about nutrition and health that may contribute to dietary intake inequalities in adulthood. Adolescents from lower socioeconomic backgrounds were less likely to see health as being important for achieving goals, and identified nutrients and sleep as influencing their health less frequently. These adolescents also referred to dietary recommendations, nutrient intakes, dairy foods and avoiding school canteen foods less frequently when describing a healthy diet.
A number of recommendations about the design and targeting of nutrition-promotion campaigns and interventions are discussed, as well as future directions for research on socioeconomic differences in dietary intakes.
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Giskes, Katrina. « Socioeconomic position, dietary intakes, perceptions of health and diet among Australian adolescents and adults ». Queensland University of Technology, 2002. http://eprints.qut.edu.au/15871/.
Texte intégralRésumé :
In Australia, and other Western countries, there are marked socioeconomic inequalities in mortality from chronic, diet-related diseases. Research in these countries has shown that adults from low socioeconomic backgrounds experience greater morbidity and mortality from these conditions compared to their higher-status counterparts. In recent decades, much research has focused on factors that may contribute to these inequalities. Dietary intakes are thought to account for a large proportion of the socioeconomic variability in health, and there is some evidence suggesting that the psychosocial foundations laid down in adolescence are important influences on these dietary intakes.
In Australia, however, existing research examining socioeconomic differences in dietary intakes is limited. Most previous research has looked at dietary intakes in adulthood, and have not considered examining for socioeconomic differences in adolescence. Furthermore, not much is known about the health and nutrition-related beliefs, attitudes and perceptions of adolescents that may contribute to socioeconomic differences in dietary intakes. This study examined these issues by analysing for socioeconomic differences in food and nutrient intakes among both adolescents and adults. It also investigated some health and nutrition-related beliefs, attitudes and perceptions of adolescents from different socioeconomic backgrounds.
Data from a national cross-sectional survey, the 1995 Australian National Nutrition Survey, were analysed to determine socioeconomic differences in food and nutrient intakes. Qualitative interviews were undertaken with adolescents to investigate their health and nutrition-related beliefs, attitudes and perceptions.
The results show that compared to adults, there is less socioeconomic inequality in food and nutrient intakes among adolescents. Intakes of some anti-oxidant vitamins and folate were directly related with socioeconomic position among adults. Adults from low socioeconomic backgrounds were less likely to consume fruits or vegetables. They consumed a lower variety of fruits and vegetables and were less likely to choose fruits and vegetables high in vitamin A, folate and vitamin C. The results showed that these differences may be due to adults from low socioeconomic backgrounds being less likely to want to increase their fruit and vegetable intakes, and perceiving price and storage as barriers to doing so.
There were a small number of socioeconomic differences in adolescents' beliefs, attitudes and perceptions about nutrition and health that may contribute to dietary intake inequalities in adulthood. Adolescents from lower socioeconomic backgrounds were less likely to see health as being important for achieving goals, and identified nutrients and sleep as influencing their health less frequently. These adolescents also referred to dietary recommendations, nutrient intakes, dairy foods and avoiding school canteen foods less frequently when describing a healthy diet.
A number of recommendations about the design and targeting of nutrition-promotion campaigns and interventions are discussed, as well as future directions for research on socioeconomic differences in dietary intakes.
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Björkman, Ebigail. « Barns uppfattningar om näringsämnen i livsmedel : En kvalitativ intervjustudie om hur barn i åldern 4-6år uppfattar livsmedels sammansättning och dess roll i människokroppen ». Thesis, Karlstads universitet, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-83406.
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Studiens syfte var att ta reda på vilka uppfattningar barn i åldern 4–6 har om olika näringsämnen i livsmedel. Dessutom att undersöka vilka ord de använder sig av när de beskriver detta samt vilka kopplingar de gör mellan olika livsmedels innehåll och roll i kroppen. I studien har 11 barn från två olika förskolor intervjuats genom semistrukturerade kvalitativa intervjuer. Det sociokulturella perspektivet har använts då det är barns samtalande och uppfattningar som arbetets fokus riktats åt. I resultatet framkommer att barnen besitter olika uppfattningar kring vad livsmedel innehåller. De hade en relativt likvärdig syn på vilken roll livsmedlens innehåll har för roll i människokroppen. Flertalet av barnen kopplade livsmedel till hälsa och fysisk rörelse eller styrka, medan några få barn beskrev livsmedlets nedbrytning och omvandling på en översiktlig nivå. Barnen förklarade att många av de begrepp som specifikt berörde näringsämnen var helt okända sedan tidigare. Studien ger en bild av barns uppfattningar om näringsämnen och dess roll i människokroppen. Studien kan också fungera som ett verktyg i förskolan för att planera undervisning inom ämnet.The purpose of the study was to find out preschool children’s perceptions of food based on the main nutrients in the food, what words they use when describing this and what connections they make between food content and role in the human body. In the study, 11 children from two different preschools were interviewed through semi structured qualitative interviews. The sociocultural perspective has been used because focus in the study was directed at children’s conversations and perceptions. The result shows that the children have different opinions about what foods contain. They had a relatively similar view of the function of food in the human body. Most children linked food to health and physical movement or strength, while a few children described the food’s degradation and transformation at a general level. The children explained that many of the concepts that specifically touched on nutrients were completely unknown since before. The study provides a picture of children’s perceptions of nutrients and their role in the human body and can serve as a tool in preschool to plan teaching on the subject.
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Shunk, Sally A. « Differences in energy and nutrient intakes, body composition, and body image between adolescent male and female athletes (swimmers) and non- athletes ». Virtual Press, 1993. http://liblink.bsu.edu/uhtbin/catkey/865939.
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Competitive swimming is a sport in which "the need to succeed" is stressed and the desire to reach the optimal level of performance--physically, emotionally, and nutritionally is strong. This research sought to investigate whether there were differences in nutrient intakes, percent body fat, and body image between male and female swimmers and their non-athletic counterparts at Muncie Central High School in Muncie, Indiana.The accessible population for this study included those male and female athletes and non-athletes, ages 14 to 18, who attended Muncie Central High School during the 1989-1990 school year.The data indicated that athletes did not differ from non-athletes while males and females did differ significantly in significant differences in height between athletes and non-athletes, primarily due to the differences in the height of female athletes as males appeared to be similar, but female athletes were one-half inch taller, on the average, than female non-athletes. There were no significant differences between the weights of male between athletes and non-athletes,male non-athletes were and female athletes and non-athletes; however, male athletes were 13 lbs. lighter, on the average, than their male counterparts. There was a significant interaction, in percent body fat, significantly fatter than male athletes. There was a tendency for males to have lower scores on the Eating Attitudes Test (EAT) than females, suggesting that males were at lower risks for disorders than females.These data suggest that nutrition education programs should be planned to ensure good diets for all students, athletes, and non-athletes.Department of Home Economics
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Pioltine, Marina Brosso. « Influência de polimorfismos nos genes dos receptores de sabor gorduroso, doce e amargo no consumo alimentar e no perfil metabólico de crianças e adolescentes obesos ». Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/5/5135/tde-24022016-090956/.
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INTRODUÇÃO: A obesidade infantil é um importante problema de saúde pública e apresenta impacto direto na qualidade de vida das crianças e adolescentes, bem como no desenvolvimento futuro de doenças crônicas. O padrão alimentar rico em gordura e açúcar, e com baixo aporte de fibra dietética, vitaminas e minerais é reconhecido como fator de risco para o surgimento da obesidade, no entanto os fatores que contribuem para a preferência por alimentos ricos nestes nutrientes não são bem estabelecidos. O sabor dos alimentos é reconhecido como um importante preditor das escolhas alimentares, e os polimorfismos nos genes que codificam os receptores do sabor podem explicar a variabilidade da preferência e consumo alimentar na população. OBJETIVO: Avaliar a influência de polimorfismos de genes de receptores de sabor gorduroso (CD36), doce (TAS1R2) e amargo (TAS2R38) no consumo alimentar e no perfil metabólico de crianças e adolescentes obesos. MÉTODOS: Estudo transversal com 668 crianças e adolescentes obesos e um grupo controle de 135 crianças eutróficas, de ambos os gêneros. Foi realizado o estudo molecular dos polimorfismos de nucleotídeo único (SNPs) rs1761667 e rs1527483 do CD36, rs9701796 e rs35874116 do TAS1R2, e rs1726866 e rs713598 do TAS2R38, bem como análise do consumo alimentar e perfil metabólico. RESULTADOS: Em relação ao CD36, o alelo A do rs1761667 relacionou-se com menor consumo de lipídios totais, gorduras poli e monoinsaturadas, consumo de alimentos de sabor gorduroso, ingestão de óleos vegetais e açúcares totais em obesos. O alelo A do rs1527483 associou-se com menor percentil de pressão arterial diastólica, menor massa gorda e maior massa livre de gordura em obesos. Quanto ao gene TAS1R2, a variante rs9701796 teve maior risco metabólico segundo a razão circunferência da cintura-estatura (RCE), bem como relação com maior consumo de achocolatado em pó em obesos. Já a variante rs35874116 mostrou relação com a menor ingestão de fibras dietéticas em obesos. No TAS2R38, o alelo G do rs1726866 foi associado com menor consumo de gorduras monoinsaturadas e maior consumo de açúcares totais, em obesos. O alelo G do rs713598 mostrou relação com maior consumo de carboidratos, consumo de alimentos de sabor doce, refrigerantes e menor ingestão de fibras pelos indivíduos eutróficos. CONCLUSÃO: Não houve relação entre genótipos e risco de obesidade. Os achados mostram a associação entre polimorfismos dos genes de receptores de sabor com o consumo alimentar, indicando diferenças entre obesos e magros, e alelos de proteção e de risco cardiometabólico, respectivamente dos genes CD36 e TAS1R2BACKGROUND: Childhood obesity is a major public health problem and it has a direct impact on the quality of life of children and adolescents, as well as the future risk for development of chronic diseases. The dietary pattern rich in fats and sugars associated to the low intake of dietary fibers, vitamins and minerals is widespread for the rise of obesity. However the factors that contribute to the preference for foods rich in these nutrients are not well established. Taste is recognized as an important predictor of food choices, and polymorphisms in genes encoding its receptors may explain the variability of taste preference and food intake on population. OBJECTIVE: To evaluate the influence of polymorphisms of fat (CD36), sweet (TAS1R2) and bitter (TAS2R38) taste receptor genes in diet and metabolic profile in obese children and adolescents. METHODS: Cross-sectional study with 668 obese children and adolescents and a control group of 135 normal-weight children. The molecular study was made for single nucleotide polymorphisms (SNPs) rs1761667 and rs1527483 of CD36, rs9701796 and rs35874116 of TAS1R2, rs1726866 and rs713598 of TAS2R38, and the analysis of food intake and metabolic profile. RESULTS: In relation to CD36, the A allele of rs1761667 was associated with lower intake of total fat, poly and monounsaturated fats, consumption of fatty flavor food, intake of vegetable oils and total sugars in obese. The A allele of rs1527483 was associated with lower percentile of diastolic blood pressure, lower fat mass and increased fat-free mass in obese. Regarding TAS1R2 gene, the variant rs9701796 was associated to increased metabolic risk according to waist-height ratio, as well as with higher consumption of chocolate powder in obese. The variant rs35874116 showed a lower intake of dietary fiber. In TAS2R38, the G allele of rs1726866 was associated with a lower intake of monounsaturated fat and a higher intake of total sugars in obese. The G allele of rs713598 was related to the higher carbohydrate intake, consumption of sweet tasting food, soda drinks and less fiber intake by normal weight children. CONCLUSION: There was no relationship between genotypes and risk of obesity. The findings show the association between polymorphisms of taste receptor genes with dietary intake, indicating differences between obese and lean children, as well as the protective and risk alleles for cardiometabolic risk in CD36 and TAS1R2, respectively
Chapitres de livres sur le sujet "Nutrients perception"
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Jaiswal, Dinesh Kumar, et Nandula Raghuram. « Nutrient Perception and Signaling in Plants ». Dans Sensory Biology of Plants, 59–77. Singapore : Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8922-1_3.
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Dhang, Partho, Philip G. Koehler, Roberto M. Pereira et Daniel D. Dye II. « Cockroaches. » Dans Key questions in urban pest management : a study and revision guide, 47–54. Wallingford : CABI, 2022. http://dx.doi.org/10.1079/9781800620179.0006.
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Abstract This book chapter discusses cockroaches. Ovoviviparous cockroaches form an egg capsule externally from the body but then withdraw it into a brood sac, females provide water until the eggs hatch, and the nymphs emerge from the female's body. For viviparous cockroaches, the ootheca is withdrawn into the female's body, the eggs develop in the brood sac, and eggs are fed nutrients by the female until the birth of the nymphs. They can cause psychopathology where the thought or sight of cockroaches, or contact with surfaces where cockroaches have been, can affect a person's perception of their own well-being. There are cockroaches that live in temperate and tropical forests, grasslands, salt marshes, aquatic habitats, caves, and deserts. In structures, they have been found feeding on soap, glue and wire insulation, but they usually feed on human food scraps. Cockroach nymphs and adults are primarily scavengers living on feces, decaying leaves and wood, as well as dead animals. Most of these novel developments in reproduction were to protect eggs from parasitoids and predators. The development of the cockroach is hemimetabolous, meaning that there is an egg, nymphal, and adult stage. The eggs of cockroaches are usually deposited in an egg capsule called an ootheca. The German cockroach is the most difficult cockroach to control worldwide due to its resistance to many insecticides. Sanitation and cultural control involve the removal of food, water, and harborage that cockroaches rely on in order to survive. Cockroaches need food, water, and harborage to survive and thrive. As a result, cockroach Integrated Pest Management (IPM) is the best method of protecting people and their properties from cockroaches.
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Odendo, M., G. Obare et B. Salasya. « Farmers’ Perception of Soil Fertility Depletion and Its Influence on Uptake of Integrated Soil Nutrient Management Techniques : Evidence from Western Kenya ». Dans Innovations as Key to the Green Revolution in Africa, 1055–59. Dordrecht : Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-90-481-2543-2_107.
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José Labora González, Juan, et Pablo Soto-Casás. « The Eating Disorder’s Society ». Dans Updates in Anorexia and Bulimia Nervosa [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.106840.
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Feeding has been subjected to a process of medicalization throughout history that has caused its perception to be assimilated to the intake of nutrients. However, it is necessary to conceive feeding as a total social phenomenon. That is to say, a phenomenon that impregnates food and the practices that surround it with different meanings. It is therefore necessary to understand how certain social dynamics (secularization, rationalization, bureaucratization) have modified the way we feed ourselves and how we interpret food itself. This, in turn, has generated a series of negative meanings that have influenced how we perceive the body and the image of people. The calculability of nutrients and an unrealistic and unattainable image canon for people have been installed. Thus, a social food imaginary has been created based on a whole series of myths that are transmitted through social networks and that produce that the society in which we live has become an obesogenic and lipophobic society. It is therefore necessary to understand how the social imaginary of fat and fatness has been constructed in order to understand how people perceive their body image and how this can be altered.
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Soenens, Bart, et Maarten Vansteenkiste. « Vitamins for Psychological Growth ». Dans Motivation Science, 94—C2.4P21. Oxford University PressNew York, 2023. http://dx.doi.org/10.1093/oso/9780197662359.003.0016.
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Abstract Whether a universal recipe exists for motivating others is an intriguing question. Most people would probably doubt this possibility, instead arguing that one needs to adjust one’s motivational approach according to the person and situation at hand (i.e., motivational tailoring). To be effective, a motivational practice first needs to nurture the psychological needs for autonomy, competence, and relatedness. These three needs serve as essential nutrients for every person’s long-term motivation, engagement, and well-being regardless of age, cultural background, gender, or personality. These needs represent the critical “vitamins” for individuals’ psychological growth and flourishing. Although the satisfaction of these psychological needs is said to be universally important, people differ in their perception of contextual support and in the way they deal with contexts that thwart their needs.
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Lionelle Tsouga Manga, Milie, René Menoh A Ngon, Etienne Akoutou Mvondo, Eunice Ndo, Bidzanga Nomo et Zachée Ambang. « Farmer’s Perception of Associates Non-Cocoa Tree’s Leaf Litterfall Fertilizing Potential in Cocoa-Based Agroforestry System ». Dans Organic Fertilizers [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.100262.
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Investigations to assess farmer’s perceptions on the fertilizing potential of associated trees species in cocoa agroforest of degraded forest ecology were carried out in southern Cameroon. The perception of the farmers was based on the ability of the trees to maintain or improve soil fertility of their farms. The verification of these perceptions was done through an evaluation of litter fall biomass nutrient content (N, P, K, Ca and Mg) of selected trees. The top 5 associates trees ranked by farmers was: Milicia excelsa, Ceiba pentandra, Ficus mucuso, Asltonia boonei, Terminalia superba. The chemical analysis of the leaf litter from the different tree species revealed a significant different between their chemical components. N appeared to have the highest concentrations varying from 2.82 to 5.57% with a mean value of 4.25 ± 1.065%, P had the lowest concentrations typically around 0.001%. The top 5 tree species based on the chemical analysis ranking were: C. pentandra, M. excelsa, Eribroma oblungum, Alstonia boonei, Zanthoxylum heitzi. Farmer’s perceptions thou holistic, are not completely different from scientific finding. Therefore, they should be taken in consideration in management plans for cocoa- based systems in order to enhance their ecological and economic performance.
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Germain, Isabelle. « The Nutritional Challenges in Dysphagia : Not Only a Matter of Nutrients ». Dans Dysphagia - New Advances [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.105167.
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Oropharyngeal dysphagia can significantly affect food ingestion. Texture-modified foods and thickened fluids are proposed to alleviate this difficulty. The nutritional density of adapted foods is often insufficient to maintain adequate nutritional intakes. The current scientific knowledge relies on a weak correlation between clinical assessment and meals consumed by patients as well as few clinical trials to support the efficacy of any treatment. The negative organoleptic perceptions associated with dysphagia diets further exacerbate undernutrition and malnutrition. Over the years, scientist in food science, nutritionists, psychologists and other health professionals have proposed parameters when formulating novel foods for the treatment of dysphagia. Beyond the nutritional composition of adapted foods for the treatment of dysphagia, this chapter will present multidimensional factors affecting food intake, sensory evaluations, rheological parameters as well as the available research to date with respect to optimizing nutritional treatment of dysphagia. To date, extrapolation to everyday food formulations remains a real challenge. To ensure success, thorough, individualized nutritional care plans need to be implemented and monitored regularly. An international knowledge transfer database must be considered to help document the innovations proposed in texture-modified foods and thickened fluids in order to benefit patients of all ages and origins.
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« Mitigating Impacts of Natural Hazards on Fishery Ecosystems ». Dans Mitigating Impacts of Natural Hazards on Fishery Ecosystems, sous la direction de John Stevely, Sherry Larkin et Charles Adams. American Fisheries Society, 2008. http://dx.doi.org/10.47886/9781934874011.ch20.
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<em>Abstract</em>.—Red tides or blooms of the naturally occurring dinoflagellate <em>Karenia brevis </em>occur in the Gulf of Mexico from Texas to Florida and in the Atlantic from Florida to North Carolina. Blooms are particularly frequent and prolonged along Florida’s southwest coast. In recent years, red tide blooms have been persistent and devastating. These events have heightened the public perception that increased nutrient loads are exacerbating the frequency and severity of red tides in bays and nearshore coastal waters. In 2001, a telephone survey of 1,006 randomly selected households in southwest Florida was conducted to assess the public’s knowledge of red tide. Adult respondents were queried about their awareness of red tide and their knowledge of the biology, environmental effects, and human health effects of red tide. The most frequently cited sources of information were television and newspapers, followed by radio and word of mouth. Brochures, Internet Web sites, workshops, and meetings were less important sources of information. One of the most significant findings was that respondents were not aware that red tides originate in offshore waters. This finding is particularly important as citizen groups are seeking strategies to either minimize or control red tides in bays and nearshore coastal waters.
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Kaushik, Shivam, Shivangi Rawat et Pinky Kain. « Drosophila Central Taste Circuits in Health and Obesity ». Dans Obesity and Health [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99643.
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When there is a perturbation in the balance between hunger and satiety, food intake gets mis-regulated leading to excessive or insufficient eating. In humans, abnormal nutrient consumption causes metabolic conditions like obesity, diabetes, and eating disorders affecting overall health. Despite this burden on society, we currently lack enough knowledge about the neuronal circuits that regulate appetite and taste perception. How specific taste neuronal circuits influence feeding behaviours is still an under explored area in neurobiology. The taste information present at the periphery must be processed by the central circuits for the final behavioural output. Identification and understanding of central neural circuitry regulating taste behaviour and its modulation by physiological changes with regard to internal state is required to understand the neural basis of taste preference. Simple invertebrate model organisms like Drosophila melanogaster can sense the same taste stimuli as mammals. Availability of powerful molecular and genetic tool kit and well characterized peripheral gustatory system with a vast array of behavioural, calcium imaging, molecular and electrophysiological approaches make Drosophila an attractive system to investigate and understand taste wiring and processing in the brain. By exploiting the gustatory system of the flies, this chapter will shed light on the current understanding of central neural taste structures that influence feeding choices. The compiled information would help us better understand how central taste neurons convey taste information to higher brain centers and guide feeding behaviours like acceptance or rejection of food to better combat disease state caused by abnormal consumption of food.
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« From Catastrophe to Recovery : Stories of Fishery Management Success ». Dans From Catastrophe to Recovery : Stories of Fishery Management Success, sous la direction de Stephen R. Gephard. American Fisheries Society, 2019. http://dx.doi.org/10.47886/9781934874554.ch8.
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<i>Abstract.</i>â€â€Anadromous Sea Lamprey <i>Petromyzon marinus</i> spawning runs in the Connecticut River and other streams in the state of Connecticut, USA were decimated by the construction of dams, which were built from 1720 to 1920 for a variety of reasons, notably hydropower. Many of these dams blocked migratory routes to spawning grounds. Government fish management programs begun in the 1960s and 1970s to restore other anadromous species to the Connecticut River did not initially target Sea Lamprey for restoration. The installation of fishways intended for Atlantic Salmon <i>Salmo salar</i> and American Shad <i>Alosa sapidissima</i> at barrier dams resulted in coincidental upstream passage of Sea Lamprey. The public knew about the destructive invasion by Sea Lamprey into the Great Lakes and initially questioned the wisdom of letting Sea Lamprey move upstream into areas where they were not present. The Connecticut Department of Energy and Environmental Protection (CTDEEP) engaged in a public education campaign to inform about the benefits of Sea Lamprey restoration, which include increased biodiversity and forage base for other fish species, importation of marine-derived nutrients into the freshwater ecosystems, and beneficial physical habitat modification through nest building. By the 1990s, the species was officially targeted for restoration, reflecting evolving public perceptions and state agencies’ embrace of increased biodiversity as a program goal. The CTDEEP pursued Sea Lamprey restoration in other watersheds in addition to the Connecticut River watershed. The main strategies for restoration have been provision of fish passage, transplantation, and public education. Restoration efforts have succeeded in increasing the number of adult Sea Lampreys in specific watersheds and expanding their geographical range within these watersheds. Monitoring and research have advanced our knowledge of anadromous Sea Lamprey, including details of the juvenile and adult migrations. Results in Connecticut suggest that individual Sea Lampreys will move upstream beyond any pheromone signal when the run has been previously established in that river below the dam, but they tend not to enter a river from the ocean without a pheromone signal. Many reasons exist why Sea Lamprey runs expanded into vacant habitat more quickly than other anadromous species, but the fact that Sea Lampreys do not home to natal rivers has limited the subsequent increase of the Connecticut River annual run. Lessons learned include specific tools for restoring Sea Lamprey, how to combat negative public perceptions of a parasitic animal, and how to promote support for restoring runs of ecologically valuable but uncharismatic species.
Actes de conférences sur le sujet "Nutrients perception"
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Zhou, Jian. « Experience And Interaction - Application Of Audiovisual Synesthesia In Interactive Devices ». Dans 13th International Conference on Applied Human Factors and Ergonomics (AHFE 2022). AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1001939.
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Background: As material culture improves, people's need for spiritual culture becomes more and more urgent. Art exhibitions are an important way for the public to participate and absorb cultural and spiritual nutrients, and the interactive installation works in the exhibition are a favorable form of creation that can bring the audience closer to the works. However, the diversity of audiences and the varying degrees of professional inculcation have led to some audiences being turned away. This situation extent an obstacle to the dissemination and development of the arts.Aims: The interactive installation removes the distance between the audience and the artworks, enhances the interactivity and experience between the audience and the artworks, and diversifies the exhibition format and enriches the visual language.Method:Through the variety of exhibition displays, new forms of artistic expression are discussed. Specifically, the phenomenon of audiovisual association and the correlation characteristics that exist between audiovisual factors are studied, key influencing factors are extracted and applied to the creation of interactive installation artworks, opening up the way of perception for the audience to recognize the works through multiple channels.Consequence:Through the creation of the experimental works, it was found that there is a cross-correlation between the sound and the visual presentation in the interactive installation; secondly, the audience is transformed from a single spectator to a participant. Compared to static installations or sculptures, interactive installations with audio-visual associations have unparalleled advantages in terms of creative dimension and cognitive engagement with the work.Keywords: audiovisual synesthesia、 interactive artwork、 sound consciousness、experience、exhibition
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Gachango, F. G., L. M. Andersen et S. M. Pedersen. « Danish farmers’ perception of water quality, nutrient reduction measures and their implementation strategy ». Dans WATER RESOURCES MANAGEMENT 2015. Southampton, UK : WIT Press, 2015. http://dx.doi.org/10.2495/wrm150371.
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Hallstrom, Jessica, Fernanda Furlan Goncalves Dias et Juliana Leite Nobrega De Moura Bell. « Impact of Almond Roasting and Particle Size on the Simultaneous Extraction of Lipids and Proteins for Almond Milk Production ». Dans 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/jcmm2165.
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Almond milk consumption has increased as an alternative to dairy milk. However, its low nutrient density and presence of emulsifiers have negatively impacted its consumer perception. We evaluated two sustainable approaches: aqueous (AEP) and enzyme-assisted extraction processes (EAEP), to produce a more nutrient-dense and functional milk. The effects of almond roasting, particle size, and extraction methods (AEP vs. EAEP) were evaluated on protein and oil extractability and in vitro protein digestibility. Unroasted and “light” and “dark” roasted almonds were ground to different particle sizes (flour, butter, or paste). AEP and EAEP were carried out in triplicate at pH 9.0, 1:10 solids-to-liquid ratio, 120 rpm at 50 °C for 60 min, with the addition of 0.5% alkaline endoprotease (w/w) in the EAEP. A two-way ANOVA (p< 0.05) was used to evaluate the significance of the variables’ effect. Although dark roasting significantly increased oil extractability to 79% from flour (300µm, particle size reduction from flour to butter (35µm) or paste (20µm) was more effective to increase oil extractability up to 96%, regardless of the roasting or extraction methods used (AEP or EAEP). Roasting facilitated grinding and significantly increased protein extractability from flour (46 to 62%), but reduced extractability from butter and paste (smaller particle sizes) from 81 to 71% in the AEP due to protein denaturation. EAEP significantly increased protein extractability up to 91.76%, regardless of roasting employed. While roasting did not alter protein digestibility, the use of enzymes in the EAEP significantly increased in vitro protein digestibility from 84.6 to 96.9%. Overall, light roasted butter could be used to produce almond milk with higher nutrient density (1.63% protein and 1.25% oil for AEP and 1.87% protein and 5.15% oil for EAEP). These results indicate that almond milk with increased nutritional and functional properties can be produced by AEP and EAEP.
Rapports d'organisations sur le sujet "Nutrients perception"
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Eshel, Amram, Jonathan P. Lynch et Kathleen M. Brown. Physiological Regulation of Root System Architecture : The Role of Ethylene and Phosphorus. United States Department of Agriculture, décembre 2001. http://dx.doi.org/10.32747/2001.7585195.bard.
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Specific Objectives and Related Results: 1) Determine the effect of phosphorus availability on ethylene production by roots. Test the hypothesis that phosphorus availability regulates ethylene production Clear differences were found between the two plants that were studied. In beans ethylene production is affected by P nutrition, tissue type, and stage of development. There are genotypic differences in the rate of ethylene production by various root types and in the differential in ethylene production when P treatments are compared. The acceleration in ethylene production with P deficiency increases with time. These findings support the hypothesis that ethylene production may be enhanced by phosphorus deficiency, and that the degree of enhancement varies with genotype. In tomatoes the low-P level did not enhance significantly ethylene production by the roots. Wildtype cultivars and ethylene insensitive mutants behaved similarly in that respect. 2) Characterize the effects of phosphorus availability and ethylene on the architecture of whole root systems. Test the hypothesis that both ethylene and low phosphorus availability modify root architecture. In common bean, the basal roots give rise to a major fraction of the whole root system. Unlike other laterals these roots respond to gravitropic stimulation. Their growth angle determines the proportion of the root length in the shallow layers of the soil. A correlation between ethylene production and basal root angle was found in shallow rooted but not deep-rooted genotypes, indicating that acceleration of ethylene synthesis may account for the change in basal root angle in genotypes demonstrating a plastic response to P availability. Short-time gravitropic response of the tap roots of young bean seedlings was not affected by P level in the nutrient solution. Low phosphorus specifically increases root hair length and root hair density in Arabidopsis. We tested 7 different mutants in ethylene perception and response and in each case, the response to low P was lower than that of the wild-type. The extent of reduction in P response varied among the mutants, but every mutant retained some responsiveness to changes in P concentration. The increase in root hair density was due to the increase in the number of trichoblast cell files under low P and was not mediated by ethylene. Low P did not increase the number of root hairs forming from atrichoblasts. This is in contrast to ethylene treatment, which increased the number of root hairs partly by causing root hairs to form on atrichoblasts. 3) Assess the adaptive value of root architectural plasticity in response to phosphorus availability. A simulation study indicated that genetic variation for root architecture in common bean may be related to adaptation to diverse competitive environments. The fractal dimension of tomato root system was directly correlated with P level.