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THE RELEVANCE OF CREATIVITY AND EMOTIONS IN ENGAGING USERS ON INSTAGRAM
Luis V. Casaló,Carlos Flavián,Sergio Ibáñez-Sánchez 글로벌지식마케팅경영학회 2018 Global Marketing Conference Vol.2018 No.07
Consumers are increasingly using social networking sites to get information about their interests. Among them, Instagram has recently reached 800 million active users (Instagram, 2017) and has a higher rate of engagement compared to Facebook or Twitter (Locowise, 2017). Despite its growing relevance, the academic research related to Instagram is still scarce. To go a step further in this topic, this research aims to examine the role played by creativity and positive emotions in driving users’ behaviour on Instagram. On the basis of the Stimulus-Organism-Response (S-O-R) framework (Donovan and Rossiter, 1982; Mehrabian and Rusell, 1974), we propose that perceived creativity (stimulus) applied to the uploaded photos or videos on Instagram results in developing positive emotions (organism) [H1]. In the same way, the use of creative posts can also affect human responses on that account, as affective commitment [H2] and interaction intention [H3]. Additionally, as a consequence of processing the information posted on Instagram account, positive feelings may arouse, resulting in greater affective commitment [H4] and interaction intention [H5]. Finally, users who experience an affective commitment with an account may tend to be more involved by interacting in the account [H6]. Data to test these hypotheses was collected from an Instagram account focused on fashion due to the relevant role that creativity has in this industry and the increasing use of this social networking site among fashion companies (Casaló et al., 2017). We obtained a sample of 808 participants which answered a questionnaire including several multiple-items measurements scales adapted from previous literature. We used a seven-point Likert-type as the response format, from 1 (“strongly disagree”) to 7 (“strongly agree”). Data analyses were carried out using SmartPLS 2.0 (Ringle et al., 2005). First, we analysed data to check validity of measures so as to confirm the factor structure, ensuring internal consistency and both convergent and discriminant validity. Results of the proposed model revealed the positive influence of perceived creativity on positive emotions (H1: β=.24, p<.01), affective commitment (H2: β=.40, p<.01) and interaction intentions (H3: β=.60, p<.01). In addition, positive emotions affect both affective commitment (H4: β=.15, p<.01) and interaction intentions (H5: β=.18, p<.01). Finally, affective commitment is also positively related to interaction intentions (H6: β=.25, p<.01). This study confirms the key role that both perceived creativity and positive emotions have on users’ responses in the Instagram context. These findings have interesting implications for management of Instagram accounts suggesting the development of creative content as well as generating positive emotions to engage followers to a greater extent in the account.
Optimization of ultrasonic-assisted extraction of phenolic compounds from Justicia spicigera leaves
Luis Miguel Anaya-Esparza,Denı´ Ramos-Aguirre,Vı´ctor Manuel Zamora-Gasga,Elhadi Yahia,Efigenia Montalvo-Gonza´lez 한국식품과학회 2018 Food Science and Biotechnology Vol.27 No.4
A Box–Behnken design (Extraction-time, pulsecycle, sonication-amplitude) was employed to extract phenolic compounds from Justicia spicigera leaves by ultrasonic-assisted extraction. The muicle leaves extracts were analyzed measuring total phenolic compounds and antioxidant capacity. According to response surface methodology the optimal conditions of ultrasonic-assisted extraction to obtain the highest soluble phenolic content were 2 min (extraction time) for 0.7 s (pulse cycle) at 55% of sonication amplitude. Under these optimal conditions, the total phenolic content was higher when was used ultrasonic-assisted extraction (54.02 mg/g) than stirring (46.46 mg/g) and thermal decoction (47.76 mg/g); however, the antioxidant capacity from J. spicigera extracts did not increase by ultrasonic-assisted extraction. The extracts or aqueous infusions from J. spicigera leaves are used for therapeutic proposes, therefore the ultrasonic-assisted extraction is a useful technology to improve the extraction of phytochemicals from J. spicigera leaves.
Zika and its vector mosquitoes in Mexico
Luis del Carpio-Orantes,María del Carmen González-Clemente,Teresa Lamothe-Aguilar 국립중앙과학관 2018 Journal of Asia-Pacific Biodiversity Vol.11 No.2
In the present study, we carried out a review on the potential vectors of the Zika virus in the Americas, specifically in Mexico. Being vectors of the Culicidae family, they have great predominance in those territories, which could facilitate viral dissemination.
REMITTANCES, POVERTY AND INEQUALITY
LUIS SAN VICENTE PORTES 경제연구소 2009 Journal of Economic Development Vol.34 No.1
This paper explores the effect of remittances across the distribution of income. Based on a panel of 46 countries that covers the period between 1970 and 2000, we find that the effect of remittances is non-monotone across the distribution of income and strongest in low income countries. The impact of remittances is positive and decreasing in income for the bottom 70 percent of the population, and negative and increasing in income in the top 20 percent of the population. All else equal, remittances decrease inequality as their effect is mostly felt among the poor and they are negatively related to the income of the rich. We estimate that for low income countries a 1 percent increase in remittances would increase the first decile’s income by approximately 0.43 percent, while the same change would increase the seventh decile’s income by only 0.04 percent. In contrast, a 1 percent increase in remittances is associated with a 0.10 percent decrease in the income of the top 10 percent of the population.
Luis Enrique Garcia-Rios,Ana K. Garcia-Avila,Marisol Luna-Castillo,Jazmin G. De Anda-Gonzalez,Rafael Medrano-Guzman 한국간담췌외과학회 2021 Annals of hepato-biliary-pancreatic surgery Vol.25 No.4
Germ cell tumors (GCTs) are considered as extragonadal if there is no evidence of a primary tumor in the testes or ovaries. GCTs can be classified as seminomas, non-seminomatous, mature teratomas, and immature teratomas based upon histology. Mature teratomas are generally found in prepuberal children. Less than 1% of them have been reported in the gastrointestinal tract and liver. Liver teratomas are extremely rare. There are only 11 cases reported in adults up to 2018. Isolated liver metastasis of ovarian teratoma is also very rare. We present a case of a late metachronous recurrence of liver cystic teratoma with gliosis peritonei in a female adult treated by a right extended hepatectomy along with a literature review.