排序方式: 共有125条查询结果,搜索用时 15 毫秒
81.
This study investigates empirically whether patents can be signals to financial markets, thus reducing problems of asymmetric information. In particular we study how patenting behaviour impacts on the way investors perceive software firms’ growth potential through an increase in the amount invested at the initial public offering (IPO) of firms in the US and Europe. This study performs regressions on the relationship of patent applications before IPO and the amount of money collected at the IPO, while controlling other factors that may influence IPO performance. We also attempt to account for a potential source of endogeneity problems that can arise for self-selection bias and simultaneity between the number of patent applications prior to going public and the amount of money collected at IPO. We find significant and robust positive correlations between patent applications and IPO performance. The signalling power of patenting is significantly different for US and European companies, and is related to the difficulty in obtaining a signal and its scarcity. An additional patent application prior to IPO increases IPO proceeds by about 0.507% and 1.13% for US and European companies, respectively. Results suggest that a less ‘applicant friendly’ patenting system increases the credibility of patents as signals and their value for IPO investors. 相似文献
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Diego Macia 《Infancia y Aprendizaje》2013,36(26):87-94
ResumenLa presente investigación ha consistido en desarrollar un método preventivo del inicio al consumo de droga, por medio del aprendizaje observacional, destinado a adolescentes. Se pretendía modificar la actitud hacia la droga, así como dotar de habilidades comportamentales suficientes a los sujetos, con el fin de que pudieran hacer frente a determinadas situaciones, causa, en muchos casos, del inicio de la drogadicción.La hipótesis principal era que un programa educativo, más modelado y la técnica de rol-playing, cambiará la actitud hacia la droga y facilitará el aprendizaje de comportamientos que ayuden a la prevención.Los resultados indican un cambio de actitud hacia determinadas drogas y una actitud más favorable a la realización de determinados comportamientos que favorecerán la posibilidad de resistirse a la iniciación al consumo de la droga. 相似文献
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Allan B. de Guzman James Cyril B. Satuito Miko Anne E. Satumba Diego Rey A. Segui Faith Evelyn C. Serquiña Lawrence Jan P. Serrano 《Educational gerontology》2013,39(3):248-261
The use of traditional art in recreational therapies is unexplored. This paper, thus, attempts to surface the unique power of traditional Filipino arts (TFA) as synergizing lens in capturing the individual and the collective experiences of a select group of Filipino elderly in an institutionalized care setting relative to their feelings of depression and self-esteem. Three Filipino elderly housed in an institutionalized care setting were chosen for this phenomenological study, a robotfoto and a series of semistructured interviews constitute the main data gathering tool. Field texts were subjected to phenomenological reduction via the repertory grid analysis. Emerged themes were subjected to a series of member checking procedures to ensure the trustworthiness of the reported data. Depression and self-esteem were interpreted via two emerged themes. The themes were Me, Myself, and Melancholy and Will Not Let My Worth Wither. Through recreational therapies in the form of traditional Filipino arts, participants found novel psychological crutches that overcame the challenges of depression and give them hope toward more positive views of themselves and life. 相似文献
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Roberto Diego Quintana 《The Journal of Agricultural Education and Extension》2013,19(3):111-119
During the 80s and 90s in Mexico there was a boost in participatory strategies developed, in order to solve serious deficiencies in community development programmes and projects. The mere existence of such methodologies, per se, does not guarantee the conscious and voluntary participation of rural inhabitants. The social energy mobilisation of the rural communities poses a great demand on those who monitor or implement participatory strategies: they have to take into consideration, among others, the preservation of the existing information about the community; the historical and subjective construction of the communities; respect for the existing structure and organisational forms; the specificity of the proposed objectives and their close relationship with specific operational strategies; and, respect for the time and pace of the communities, as well as the time, pace and movement of the organisational processes within these communities. 相似文献
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By calculating an additively decomposable inequality measure following the lines of Shorrocks (1980; see Econometrica, 48(3)) we are able to evaluate regional disparities in private funding of cultural enterprises in the UK in a novel way. The country-wide index of inequality separates funding differences across regions from disparities within regions. Using data on private investment in UK cultural organisations, we consider three datasets: the first includes 139 organisations between 1993 and 2005; the second includes 573 organisations between 2002 and 2005; the third includes 898 organisations between 2005 and 2006. Differences among the 12 UK regions account for between a quarter and a third of overall funding inequalities. The largest contributor to funding inequality of cultural institutions in the UK is the degree of heterogeneity among cultural organisations within each region. We find that successful private fundraising is not significantly associated with the region where the organisation operates or with the particular cultural expression object of its activity. These are significant findings for cultural policymakers working on addressing issues of regional concentration of culture and diversifying sources of funding for the sector. 相似文献
86.
Effects of concurrent training on interleukin-6, tumour necrosis factor-alpha and C-reactive protein in middle-aged men 总被引:1,自引:1,他引:0
Libardi CA Souza GV Gáspari AF Dos Santos CF Leite ST Dias R Frollini AB Brunelli DT Cavaglieri CR Madruga VA Chacon-Mikahil MP 《Journal of sports sciences》2011,29(14):1573-1581
The purpose of this study was to evaluate the effects of moderate- to high-intensity resistance and concurrent training on inflammatory biomarkers and functional capacity in sedentary middle-aged healthy men. Participants were selected on a random basis for resistance training (n = 12), concurrent training (n = 11) and a control group (n = 13). They performed three weekly sessions for 16 weeks (resistance training: 10 exercises with 3 × 8-10 repetition maximum; concurrent training: 6 exercises with 3 × 8-10 repetition maximum, followed by 30 minutes of walking or running at 55-85% [Vdot]O(2peak)). Maximal strength was tested in bench press and leg press. The peak oxygen uptake ([Vdot]O(2peak)) was measured by an incremental exercise test. Tumour necrosis factor-α, interleukin-6 and C-reactive protein were determined. The upper- and lower-body maximal strength increase for both resistance (+42.52%; +20.9%, respectively) and concurrent training (+28.35%; +21.5%, respectively) groups (P = 0.0001).[Vdot]O(2peak) increased in concurrent training when comparing pre- and post-training (P = 0.0001; +15.6%). No differences were found in tumour necrosis factor-α and interleukin-6 for both groups after the exercise. C-reactive protein increased in resistance training (P = 0.004). These findings demonstrated that 16 weeks of moderate- to high-intensity training could improve functional capacity, but did not decrease inflammatory biomarkers in middle-aged men. 相似文献
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Diego Giulliano Destro Christofaro Selma Maffei De Andrade Arthur Eumann Mesas Rômulo Araújo Fernandes José Cazuza Farias Júnior 《European Journal of Sport Science》2016,16(4):498-506
Objectives: To analyse the associations between high screen time and overweight, poor dietary habits and physical activity in adolescents according to sex. Methods: The study comprised 515 boys and 716 girls aged 14–17 years from Londrina, Brazil. Nutritional status (normal weight or overweight/obese) was assessed by calculating the body mass index. Eating habits and time spent in physical activity were reported using a questionnaire. The measurement of screen time considered the time spent watching television, using a computer and playing video games during a normal week. Associations between high screen time and dependent variables (nutritional status, eating habits and physical activity levels) were assessed by binary logistic regression, adjusted for sociodemographic and lifestyle variables. Results: Most adolescents (93.8% of boys and 87.2% of girls) spent more than 2 hours per day in screen-time activities. After adjustments, an increasing trend in the prevalence of overweight and physical inactivity with increasing time spent on screen activities was observed for both sexes. Screen times of >4 hours/day compared with <2 hours/day were associated with physical inactivity, low consumption of vegetables and high consumption of sweets only in girls and the consumption of soft drinks in both sexes. Conclusions: The frequency of overweight and physical inactivity increased with increasing screen time in a trending manner and independently of the main confounders. The relationship between high screen time and poor eating habits was particularly relevant for adolescent girls. 相似文献
90.
Romero-Maltrana Diego Benitez Federico Vera Francisco Rivera Rodrigo 《Research in Science Education》2019,49(6):1735-1757
Research in Science Education - There is an increasing demand in the field of science education for the incorporation of philosophical and sociological aspects that are related to the scientific... 相似文献