86 research outputs found
"Consumer Innovativeness Scale": Adaptation and validation with undergraduate students
This research aimed to adapt and validate Goldsmith and Hofacker's scale of Consumer Innovativeness. We employed a cross-cultural adaptation and assessing the instrument's psychometric properties from the original scale, including content validity, face validity, semantic validity, and statistical analysis with exploratory and confirmatory factor analysis. The sample consisted of 318 participants. We present a six-items validated scale for application with undergraduate students in several scenarios of innovativeness of consumption, adapted and validated theoretically and empirically. The results showed satisfactory evidence of the scale's validity and reliability. The validation with undergraduate students can be considered a limitation of the study, while the broad scope of application of scale can foster posterior research on consumer innovativeness. The results presented are the first validated version of Goldsmith and Hofacker for undergraduate students in Portuguese as far as we are concerned.Esta investigación tuvo como objetivo adaptar y validar la escala de innovación del consumidor de Goldsmith y Hofacker. Empleamos una adaptación transcultural y evaluamos las propiedades psicométricas del instrumento a partir de la escala original, incluida la validez de contenido, la validez aparente, la validez semántica y el análisis estadístico con análisis factorial exploratorio y confirmatorio. La muestra estuvo formada por 318 participantes. Presentamos una escala validada de seis ítems para su aplicación con estudiantes de pregrado en varios escenarios de innovación de consumo, adaptada y validada teórica y empíricamente. Los resultados mostraron evidencia satisfactoria de la validez y confiabilidad de la escala. La validación con estudiantes de pregrado puede considerarse una limitación del estudio, mientras que el amplio ámbito de aplicación de la escala puede fomentar investigaciones posteriores sobre la innovación del consumidor. Los resultados presentados son la primera versión validada de Goldsmith y Hofacker para estudiantes de pregrado en portugués en lo que a nosotros respecta
Weed control with saturated steam in organic highbush blueberry
Weed management is often a predominant and costly problem in the production of organic blueberries. Geotextile weed fabrics of woven polyethylene are widely used in organic blueberry fields to suppress weeds growing within the rows. Weeds, such as Convolvulus arvensis L., grow at the base of the blueberry plants or through openings and around the edges of the weed fabric, thus requiring hand weeding. This study evaluates the integration of saturated steam (SS), a rotary brush (RB), and organic herbicides for weed control in blueberries. Dose–response studies indicated that SS applied at 121°C and at 7.4 m3 ha−1 of steam (3,655 MJ ha−1) resulted in over 90% control and a reduction in the dry weights of C. arvensis. When treatments were directed to the base of the blueberry plants, SS at 7.4 m3 ha−1 provided 80% control of C. arvensis 28 days after treatment (DAT) and was comparable to hand weeding. Both of these treatments outperformed capric plus caprylic acid (CC) (33.2 kg ai ha−1) or ammonium nonanoate (AN) (24.3 kg ai ha−1) applications, despite C. arversis regrowth being observed. Four repetitive basal applications of SS of up to 29.6 m3 ha−1 over two consecutive years caused minimal and transient damage to new basal shoots of ‘Elliot’ and ‘Duke’ blueberries; basal shoot cross-sectional area compared with the non-treated was unaffected. In contrast, basal application of AN treatments damaged or killed basal shoots. When treatments were applied to the edge of the weed fabric, SS (7.4 m3 ha−1) reduced weed biomass by 42% to 93% at 28 DAT compared with the non-treated. The RB treatment reduced weed biomass from 72% to 99% in all experiments, while CC and AN reduced biomass by 18% to 54%. A partial budget analysis indicated that SS and the RB were 3- and 6.5-fold less expensive than organic herbicides, respectively. Integrating physical (SS) and mechanical (RB) treatments improved weed control. The latter, however, damaged the weed-suppressing fabric where preexisting holes were present, generated dust, and increased the chance of fruit contamination. The SS was safe for the weed-suppressing fabric and the blueberry, but weed regrowth following treatment and copious water requirements hindered its feasibility
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Cherry : 2019 pest management guide for the Willamette Valley
A more recent revision exists. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogThe information in this pest management guide is valid for 2019. Trade-name products and services are mentioned as illustrations only. This does not mean that the Oregon State University Extension Service either endorses these products and services or intends to discriminate against products and services not mentioned. Due to constantly changing laws and regulations, the Oregon State University Extension Service can assume no liability for the suggested use of chemicals contained in this guide. Pesticides should be applied according to the label directions on the pesticide container
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Hazelnut : 2019 pest management guide for the Willamette Valley
Recommends pest management practices for hazelnut.A more recent revision exists. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo
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2020 pest management guide for wine grapes in Oregon
This guide is developed for use by managers of commercial vineyards in Oregon. It provides recommendations for chemicals, formulations and usage rates of products that are intended to prevent, manage and control vineyard diseases, insects, mites and weeds. When considering a pesticide, evaluate its efficacy and its impact on beneficial arthropods, honey bees and the environment. Not all registered pesticides are listed in this guide. These recommendations are based on research, label directions and vineyard-use experience for Oregon.Revised March 2020. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo
Love in the Time of COVID-19: Negligence in the Nicaraguan Response
The response of the Nicaraguan government to the coronavirus disease 2019 (COVID-19) pandemic has been perhaps the most erratic of any country in the world to date. Directly contradicting mitigation strategies recommended by WHO, President Daniel Ortega has refused to encourage any physical distancing measures. Vice President Rosario Murillo (Daniel Ortega\u27s wife) instead called on thousands of sympathisers to congregate in street marches under the slogan \u27love in the time of COVID-19\u27. By downplaying the danger of the pandemic and increasing the risk of community transmission in the second-poorest country in the western hemisphere, the Nicaraguan government is violating the human rights of its citizens
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2018 pest management guide for wine grapes in Oregon
This publication reviews the growth stages of grapes. For each growth stage (or group of growth stages), the document lists the more effective pesticides used to control insects, weeds, and disease, their rates, and application timing for Oregon grape growers. It also covers the effectiveness of various fungicides for control of grape diseases; strategies for controlling powdery mildew, botrytis bunch rot, and spider mites; methods of controlling vertebrate pests and weeds in vineyards; and resources for organic growers. It also includes a vineyard airblast sprayer calibration worksheet.A more recent revision exists. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo
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2020 pest management guide for tree fruits : Hood River, The Dalles, White Salmon, Rogue Valley
This guide provides tree fruit growers with the latest information on pesticides and herbicides for fruit trees. People who grow apples, pears and cherries can learn application rates and recommendations for each stage of tree growth.Published January 2020. A more recent revision exists. Facts and recommendations in this publication may no longer be valid. Please check for up-to-date titles in the OSU Extension Service Catalog: http://extension.oregonstate.edu/catalo
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