Consórcios com potencial de uso como adubo verde no município de Paty do Alferes-RJ.

Foi feito um experimento sob condições de campo no município de Paty do Alferes-RJ, com a finalidade de avaliar os efeitos dos consórcios, mucuna-preta (Mucuna aterrima) e crotalaria (Crotalaria juncea), consorciados com o milho (Zea mays cv. BR-116), na produção de fitomassa e acumulo de nitrogênio nas plantas dessas espécies e das plantas invasoras. O delineamento experimental foi O de blocos ao acaso, com quatro repetições e os três tratamentos: mucuna-preta + milho; crotalaria + milho e milho. A produção de fitomassa seca no tratamento só com milho foi significantemente (p<0,05) maior quando comparada com a produção do milho no consórcio, aproximadamente o dobro e nove vezes maior que nos consórcios com mucuna-preta e crotalaria respectivamente. No consórcio mucuna preta + milho, a leguminosa contribuiu com 61 % da produção da fitomassa seca, enquanto no consórcio crotalaria+ milho a contribuição foi de 89%. Não foi observado plantas invasoras nas parcelas do consorcio de mucuna-preta + milho. A fitomassa seca do milho nas parcelas sem consórcio apresentou um teor de N (0,69%) menor do que no milho consorciado com a crotalaria (1,36%) e com mucuna-preta (1,25%).0 teor de N da mucuna-preta (3,12%) no consórcio foi maior do que com a crotalaria (2,18%). A produção de N total do consórcio mucuna-preta + milho foi significantemente (p<0,05) maior 54 e 338% do que a do consórcio crotalaria + milho e do tratamento com milho, respectivamente, enquanto o tratamento crotalaria + milho superou o tratamento so com milho, em 185%. A produyao de N da mucuna-preta no consórcio foi 32% maior do que o da crotalaria. A mucuna-preta e a crotalaria no consórcio com o milho, num intervalo de 105 dias, do plantio até o corte, produziram cerca de 4,8 e 3,7 kg de N ha-1dia-1, respectivamente. Isto faz destas leguminosas um grande potencial para uso como adubo verde na região de Paty do Alferes-RJ. A field experiment was set up at the Municipality of Paty do Alferes, RJ, aiming the evaluation of intercropping the summer green manure velvet bean (Mucuna aterrima) and sunnhemp (Crotalaria juncea) with maize (Zea mays cv BR 116) on the biomass production and N accumulation in these species and in the weeds. The experimental design was in randomised blocks with four replications. The treatments were velvet bean + maize, sunnhemp + maize and maize. The dry mass production of the maize treatment was significantly higher (p<0.05) than maize intercropped with green manure. Maize only areas produced the double and nine-fold the dry mass accumulated by maize intercropped with velvet bean and sunnhemp, respectively. In the velvet bean maize intercrop the legume contributed to 61 % of total mass production while sunnhemp contributed to 89% of the total mass when intercropped with maize. There were no weeds in the plots with the intercrop of maize and velvet bean. The dry mass of maize in the pure maize plots had a N content (0.69%) lower than maize intercropped with sunnhemp (1.36%) and with velvet bean (1.25%). The N content in velvet bean (3.12%) was higher than that in sunnhemp (2.18%). The total N accumulated in the maize - velvet bean intercropping was 54% and 338% higher (p<0.05) than that accumulated in maize-sunnhemp intercropping and in pure maize crop, respectively, while the treatment maize-sunnhemp surpassed the pure maize treatment in 185%. The N production in velvet bean intercropped with maize was 32% higher than that in sunnhemp under the same condition. Velvet bean and sunnhemp intercropped with maize yielded respectively 4.8 and 3.7 kg N ha-1 day-1 during 105 days that comprised the planting-cut interval. This pointed out that these legumes have a strong potential to be used as green manure in the region of Paty do Alferes, RJ.Parceria: PESAGRO

How corporate social responsibility can influence brand equity

The current chapter embraces a topic which is still underdeveloped in the literature: how Corporate Social Responsibility may or may not influence Brand Equity. Therefore, we conducted a literature review to analyse past studies on this topic. The results allow us to present the core studies and discuss them. In this context, we analyse four major aspects: types of CSR and brand-fit, effects on brand knowledge, effects on consumers’ responses: (purchase intentions) and brand-cause fit (polarized results).info:eu-repo/semantics/acceptedVersio

Internet of things and consumer engagement on retail: State-of-the-art and future directions

Purpose The growing complexity of consumer engagement (CE) due to the impact of Internet of things (IoT) has been attracting significant attention from both academics and industry practitioners especially in recent times. Hence, understanding this phenomenon remains very crucial to the body of knowledge. This study conducted a systematic review on IoT and CE with the aim of proposing future research opportunities using the TCCM model. Design/methodology/approach Extant literature studies were systematically examined by sourcing high ranking ABS journals from EBSCO, ScienceDirect and Emerald. A total of 58 articles were included in the final analysis of this research. Findings The analysis established the need to conduct more research on CE due to the impact of new technological implementation in retail. The results further suggest the need for extensive research across African countries and emerging markets to enable broader empirical generalizations of research outcomes. Using the TCCM framework, the authors indicated directions for future empirical research. Originality/value This study exposes the current trends in CE and IoT. The results and analysis are both compelling and verifiable, hence, establishing a firm base of reference for future research in related fields.info:eu-repo/semantics/acceptedVersio

Analytical Results for the Statistical Distribution Related to Memoryless Deterministic Tourist Walk: Dimensionality Effect and Mean Field Models

Consider a medium characterized by N points whose coordinates are randomly generated by a uniform distribution along the edges of a unitary d-dimensional hypercube. A walker leaves from each point of this disordered medium and moves according to the deterministic rule to go to the nearest point which has not been visited in the preceding \mu steps (deterministic tourist walk). Each trajectory generated by this dynamics has an initial non-periodic part of t steps (transient) and a final periodic part of p steps (attractor). The neighborhood rank probabilities are parameterized by the normalized incomplete beta function I_d = I_{1/4}[1/2,(d+1)/2]. The joint distribution S_{\mu,d}^{(N)}(t,p) is relevant, and the marginal distributions previously studied are particular cases. We show that, for the memory-less deterministic tourist walk in the euclidean space, this distribution is: S_{1,d}^{(\infty)}(t,p) = [\Gamma(1+I_d^{-1}) (t+I_d^{-1})/\Gamma(t+p+I_d^{-1})] \delta_{p,2}, where t=0,1,2,...,\infty, \Gamma(z) is the gamma function and \delta_{i,j} is the Kronecker's delta. The mean field models are random link model, which corresponds to d \to \infty, and random map model which, even for \mu = 0, presents non-trivial cycle distribution [S_{0,rm}^{(N)}(p) \propto p^{-1}]: S_{0,rm}^{(N)}(t,p) = \Gamma(N)/\{\Gamma[N+1-(t+p)]N^{t+p}\}. The fundamental quantities are the number of explored points n_e=t+p and I_d. Although the obtained distributions are simple, they do not follow straightforwardly and they have been validated by numerical experiments.Comment: 9 pages and 4 figure