Red pigment production by Penicillium purpurogenum GH2 is influenced by pH and temperature     

Méndez A  Pérez C  Montañéz JC  Martínez G  Aguilar CN 《Journal of Zhejiang University. Science. B》2011,12(12):961-968

The combined effects of pH and temperature on red pigment production and fungal morphology were evaluated in a submerged culture of Penicillium purpurogenum GH2, using Czapek-Dox media with d-xylose as a carbon source. An experimental design with a factorial fix was used: three pH values (5, 7, and 9) and two temperature levels (24 and 34 °C) were evaluated. The highest production of red pigment (2.46 g/L) was reached with a pH value of 5 and a temperature of 24 °C. Biomass and red pigment production were not directly associated. This study demonstrates that P. purpurogenum GH2 produces a pigment of potential interest to the food industry. It also shows the feasibility of producing and obtaining natural water-soluble pigments for potential use in food industries. A strong combined effect (p<0.05) of pH and temperature was associated with maximal red pigment production (2.46 g/L).  相似文献   

Evaluating the success of educational policy in Mexican Higher Education     

Marti Sagarra  Cecilio Mar-Molinero  Herberto Rodríguez-Regordosa 《Higher Education》2015,69(3):449-469

  相似文献   

Effects of college programme characteristics on graduates’ performance     

Adela García-Aracil 《Higher Education》2015,69(5):735-757

  相似文献   

Covariation between variables in a modelling process: The ACODESA (collaborative learning,scientific debate and self-reflection) method     

Fernando Hitt  Alejandro S. González-Martín 《Educational Studies in Mathematics》2015,88(2):201-219

  相似文献   

Pride as moral motive: moral pride and prosocial behaviour / El orgullo como motivación moral: orgullo moral y conducta prosocial     

Itziar Etxebarria  María-José Ortiz  Pedro Apodaca  Aitziber Pascual  Susana Conejero 《Infancia y Aprendizaje》2015,38(4):746-774

Moral pride, namely the pride generated by morally positive behaviour, can foster prosocial behaviour. To demonstrate this, two quasi-experimental studies were conducted with nine- to 11-year-old children. Study 1 analysed the effect of the pride felt after engaging in prosocial behaviour, in four classrooms from two different schools (N = 94). Study 2 analysed the effect of the pride generated by the evocation of a past example of one’s own prosocial behaviour, in four classrooms from another school (N = 77). The hypothesis was supported in Study 1 but not in Study 2. Interesting correlations were found between dispositional moral pride (measured using a scale designed ad hoc) and other relevant variables in the moral field: intention to engage in prosocial behaviour, habitual prosocial behaviour and dispositional empathy. In general, these studies attest to the importance of moral pride, both dispositional and that felt in a specific situation, in moral life.  相似文献   

Revisiting the Collective in Critical Consciousness: Diverse Sociopolitical Wisdoms and Ontological Healing in Sociopolitical Development     

Sonia Abigail Sánchez Carmen  Michael Domínguez  Andrew Cory Greene  Elizabeth Mendoza  Michelle Fine  Helen A. Neville  Kris D. Gutiérrez 《The Urban Review》2015,47(5):824-846

  相似文献   

Negotiating empire: the cultural politics of schools in Puerto Rico, 1898–1952     

Amílcar Antonio Barreto 《History of education》2015,44(4):529-531

  相似文献   

Translating quality in higher education: US approaches to accreditation of institutions from around the world     

Gerardo Blanco Ramírez 《Assessment & Evaluation in Higher Education》2015,40(7):943-957

This article reports on findings from a sociolinguistic qualitative study exploring inter-discursive relations manifested in the approaches and strategies that regional accrediting agencies in the United States utilise when recognising foreign universities. Even as most countries have developed national quality assurance systems and whilst international rankings comparing institutions globally are available, a growing number of universities around the world seek recognition from American regional agencies. By comparing policy statements, manuals, guidelines and other documents, and after interviewing top-level officers at US accrediting agencies, this study makes explicit the assumptions and central discourses associated with US accreditation of non-US institutions of higher education, from the accreditors’ perspective. Following constant comparison and cultural critical discourse analysis, the study reveals concerns about the equivalency of quality, emphasis on capacity building and reluctance toward adapting US standards. An interest in building international partnerships, in order to respond to globalisation, is also identified.  相似文献   

Gender differences in adolescents’ choice of heroes and admired adults in five countries     

Juan Diego Estrada  Cristina García-Ael  José Luis Martorell 《Gender and education》2015,27(1):69-87

Seven hundred and sixty-eight adolescents from five countries and regions (USA, Spain, Hong Kong, Qatar, and Malaysia), aged 13–19 (M?=?15.78; SD?=?1.28) years, responded to a questionnaire designed to determine who was their most admired famous adult or hero. Male heroes clearly outnumbered admired females (73.3% vs. 26.7%). There was a pattern of same-sex choices, but it was more likely for girls to choose male heroes than for boys to choose females. Over half of the admired adults were athletes, and movie, television, and music stars. Regarding the personally known adults, there was a more balanced choice of males and females, with parents as the most frequent choice. Results suggest that society continues to fail in providing an adequate supply of female role models.  相似文献   

Do men and women perform academic work differently?     

González Ramos  Ana M.  Fernández Palacín  Fernando  Muñoz Márquez  Manuel 《Tertiary Education and Management》2015,21(4):263-276

Tertiary Education and Management - Why is the gender gap so large in researchers’ career progression? Do men and women have different priorities in their academic careers? This study...  相似文献