42 research outputs found

    A Influência da Música e Temperatura Ambiente Sobre o Comportamento do Consumidor no Varejo

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    Este artigo aborda a influência dos elementos música e temperatura ambiente sobre a intenção de compra dos consumidores no ambiente de varejo, mediante a manipulação dos cenários em um design 2 (música baixa e música alta) por 2 (conforto térmico e temperatura alta) em um laboratório criado pelos pesquisadores. Foram aplicados questionários fechados para 153 estudantes de uma Faculdade do Estado do Rio Grande do Sul. Sendo assim, foram convidados a participar da pesquisa alunos dos cursos de Graduação em Arquitetura e Urbanismo, Administração, Engenharia Civil e Sistemas da Informação. Os resultados encontrados demonstram o aumento da influência na intenção de compra no cenário Música Baixa x Conforto Térmico, em comparação com os demais cenários de interação entre música e temperatura. Os resultados desse estudo também revelam que a música e a temperatura ambiente são congruentes um com o outro em termos de intenção de compra

    Não curti! Fatores de insatisfação relacionados a empresas ou marcas presentes nas redes sociais

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    The aim of this study is to identify the factors of dissatisfaction related to companies or brands in socialnetworks and their consequences. To this end, 40 interviews were conducted and classified according to thecritical incident technique in the following categories, regarding factors of dissatisfaction: informationoverload, false advertising, failure to communicate with the company / customer return, the inadequacy tothe customer profile and invasion of privacy. The consequences were classified into the following categories:irritation and boredom, abandonment, loss of trust, intention to claim, intention of word of mouth, andacceptance. Some propositions derived from these categories are presented. Finally, in concluding remarks,theoretical and managerial implications, limitations and suggestions for future research are presented.</p

    Pervasive gaps in Amazonian ecological research

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    Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

    Signal transduction-related responses to phytohormones and environmental challenges in sugarcane

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    BACKGROUND: Sugarcane is an increasingly economically and environmentally important C4 grass, used for the production of sugar and bioethanol, a low-carbon emission fuel. Sugarcane originated from crosses of Saccharum species and is noted for its unique capacity to accumulate high amounts of sucrose in its stems. Environmental stresses limit enormously sugarcane productivity worldwide. To investigate transcriptome changes in response to environmental inputs that alter yield we used cDNA microarrays to profile expression of 1,545 genes in plants submitted to drought, phosphate starvation, herbivory and N(2)-fixing endophytic bacteria. We also investigated the response to phytohormones (abscisic acid and methyl jasmonate). The arrayed elements correspond mostly to genes involved in signal transduction, hormone biosynthesis, transcription factors, novel genes and genes corresponding to unknown proteins. RESULTS: Adopting an outliers searching method 179 genes with strikingly different expression levels were identified as differentially expressed in at least one of the treatments analysed. Self Organizing Maps were used to cluster the expression profiles of 695 genes that showed a highly correlated expression pattern among replicates. The expression data for 22 genes was evaluated for 36 experimental data points by quantitative RT-PCR indicating a validation rate of 80.5% using three biological experimental replicates. The SUCAST Database was created that provides public access to the data described in this work, linked to tissue expression profiling and the SUCAST gene category and sequence analysis. The SUCAST database also includes a categorization of the sugarcane kinome based on a phylogenetic grouping that included 182 undefined kinases. CONCLUSION: An extensive study on the sugarcane transcriptome was performed. Sugarcane genes responsive to phytohormones and to challenges sugarcane commonly deals with in the field were identified. Additionally, the protein kinases were annotated based on a phylogenetic approach. The experimental design and statistical analysis applied proved robust to unravel genes associated with a diverse array of conditions attributing novel functions to previously unknown or undefined genes. The data consolidated in the SUCAST database resource can guide further studies and be useful for the development of improved sugarcane varieties

    Canagliflozin and renal outcomes in type 2 diabetes and nephropathy

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    BACKGROUND Type 2 diabetes mellitus is the leading cause of kidney failure worldwide, but few effective long-term treatments are available. In cardiovascular trials of inhibitors of sodium–glucose cotransporter 2 (SGLT2), exploratory results have suggested that such drugs may improve renal outcomes in patients with type 2 diabetes. METHODS In this double-blind, randomized trial, we assigned patients with type 2 diabetes and albuminuric chronic kidney disease to receive canagliflozin, an oral SGLT2 inhibitor, at a dose of 100 mg daily or placebo. All the patients had an estimated glomerular filtration rate (GFR) of 30 to &lt;90 ml per minute per 1.73 m2 of body-surface area and albuminuria (ratio of albumin [mg] to creatinine [g], &gt;300 to 5000) and were treated with renin–angiotensin system blockade. The primary outcome was a composite of end-stage kidney disease (dialysis, transplantation, or a sustained estimated GFR of &lt;15 ml per minute per 1.73 m2), a doubling of the serum creatinine level, or death from renal or cardiovascular causes. Prespecified secondary outcomes were tested hierarchically. RESULTS The trial was stopped early after a planned interim analysis on the recommendation of the data and safety monitoring committee. At that time, 4401 patients had undergone randomization, with a median follow-up of 2.62 years. The relative risk of the primary outcome was 30% lower in the canagliflozin group than in the placebo group, with event rates of 43.2 and 61.2 per 1000 patient-years, respectively (hazard ratio, 0.70; 95% confidence interval [CI], 0.59 to 0.82; P=0.00001). The relative risk of the renal-specific composite of end-stage kidney disease, a doubling of the creatinine level, or death from renal causes was lower by 34% (hazard ratio, 0.66; 95% CI, 0.53 to 0.81; P&lt;0.001), and the relative risk of end-stage kidney disease was lower by 32% (hazard ratio, 0.68; 95% CI, 0.54 to 0.86; P=0.002). The canagliflozin group also had a lower risk of cardiovascular death, myocardial infarction, or stroke (hazard ratio, 0.80; 95% CI, 0.67 to 0.95; P=0.01) and hospitalization for heart failure (hazard ratio, 0.61; 95% CI, 0.47 to 0.80; P&lt;0.001). There were no significant differences in rates of amputation or fracture. CONCLUSIONS In patients with type 2 diabetes and kidney disease, the risk of kidney failure and cardiovascular events was lower in the canagliflozin group than in the placebo group at a median follow-up of 2.62 years

    Pervasive gaps in Amazonian ecological research

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    Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

    COVID-19 symptoms at hospital admission vary with age and sex: results from the ISARIC prospective multinational observational study

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    Background: The ISARIC prospective multinational observational study is the largest cohort of hospitalized patients with COVID-19. We present relationships of age, sex, and nationality to presenting symptoms. Methods: International, prospective observational study of 60 109 hospitalized symptomatic patients with laboratory-confirmed COVID-19 recruited from 43 countries between 30 January and 3 August 2020. Logistic regression was performed to evaluate relationships of age and sex to published COVID-19 case definitions and the most commonly reported symptoms. Results: ‘Typical’ symptoms of fever (69%), cough (68%) and shortness of breath (66%) were the most commonly reported. 92% of patients experienced at least one of these. Prevalence of typical symptoms was greatest in 30- to 60-year-olds (respectively 80, 79, 69%; at least one 95%). They were reported less frequently in children (≤ 18 years: 69, 48, 23; 85%), older adults (≥ 70 years: 61, 62, 65; 90%), and women (66, 66, 64; 90%; vs. men 71, 70, 67; 93%, each P &lt; 0.001). The most common atypical presentations under 60 years of age were nausea and vomiting and abdominal pain, and over 60 years was confusion. Regression models showed significant differences in symptoms with sex, age and country. Interpretation: This international collaboration has allowed us to report reliable symptom data from the largest cohort of patients admitted to hospital with COVID-19. Adults over 60 and children admitted to hospital with COVID-19 are less likely to present with typical symptoms. Nausea and vomiting are common atypical presentations under 30 years. Confusion is a frequent atypical presentation of COVID-19 in adults over 60 years. Women are less likely to experience typical symptoms than men

    Verificação da relação entre os valores pessoais e a predisposição ao consumo sustentável

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    A presente dissertação aborda uma forma de consumo que ganha cada vez mais atenção dos meios de comunicação, bem como da academia, o consumo sustentável, que surge em decorrência da mudança da percepção do conceito de marketing ocorrida em meados do século XX, quando passou a existir o conceito de marketing social. Esse fato contribui para que as empresas dediquem maior preocupação para aspectos antes esquecidos e passem a investir em responsabilidade social. A partir disso, em conjunto com diferentes fatores, como a degradação ambiental, o maior engajamento das pessoas em práticas ambientalmente responsáveis, bem como a formação de uma consciência por parte das pessoas acerca de questões ambientais, o estudo do conceito de consumo sustentável tornou-se de extrema importância. Dessa forma, estudos demonstraram a relação existente entre consumo sustentável e características individuais (DIETZ et al., 2002; VERMEIER; VERBEKE, 2008; RIBEIRO, 2011). Assim, o presente trabalho busca ampliar o conhecimento acerca do tema, relacionando-o com outro construto bastante estudado na área de marketing, os valores pessoais. Dessa forma, realizou-se uma survey com 442 entrevistados, escolhidos de maneira aleatória, na cidade de Porto Alegre, com a utilização de uma escala de consumo sustentável (RIBEIRO; VEIGA, 2010) em conjunto com a escala de valores pessoais – portrait value questionaire (PVQ) (SCHWARTZ, 1992) com o objetivo de verificar a relação entre esses dois construtos. Os resultados encontrados confirmaram a existência de relação estatisticamente significativa entre as dimensões auto-promoção, abertura à mudança e conservadorismo (valores pessoais) com as dimensões reciclagem, frugalidade, economia de recursos e consciência ecológica (consumo sustentável). A dimensão de valores pessoais auto-transcendência apresentou relação estatisticamente significativa com as dimensões de consumo sustentável economia de recursos e frugalidade.This dissertation deals with a consumption’s form which gains more and more attention from the media, as well as the academy, the sustainable consumption, which arises because of changing’s perception of marketing’s concept occurred in the middle of twentieth century, when begins to exist the social marketing’s conception. This fact contributes to company dedicates major preoccupation for aspects that were forgotten and became to invest in social responsibility. From this perspective, together with different factors, as the environmental degradation, the major people’s commitment to practices environmentally responsible, as well as the development of a consciousness, from the persons, related to environmental issues, the study of sustainable consumption’s concept became extremely important. In this sense, studies demonstrate the existing relation between sustainable consumption and individual characteristics (DIETZ et al., 2002; VERMEIER; VERBEKE, 2008; RIBEIRO, 2011).Thus, this work aims to extend the knowledge about the topic, relating this issue with another construct much studied in marketing’s area, the personal values. Thereby, a survey took place with 442 interviewees, chosen by random sample selection, in Porto Alegre city, using a sustainable consumption’ scale (RIBEIRO; VEIGA, 2010), together with a personal values’ scale - portrait value questionaire (PVQ) (SCHWARTZ, 1992) with the aim of analyzing the relation between this two constructs. The results achieved confirm the existence of a relation statistically meaningful between the dimensions self-promotion, opening to change and conservatism (personal values) with the dimensions recycling, frugality, economy of resources and ecological conscience (sustainable consumption). The personal value’s dimension self-transcendence presents relation statistically meaningful with the sustainable consumption’s dimension economy of resources and frugality
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