Recruitment and replacement of hippocampal neurons in young and adult chickadees: an addition to the theory of hippocampal learning.

We used [3H]thymidine to document the birth of neurons and their recruitment into the hippocampal complex (HC) of juvenile (4.5 months old) and adult blackcapped chickadees (Parus atricapillus) living in their natural surroundings. Birds received a single dose of [3H]thymidine in August and were recaptured and killed 6 weeks later, in early October. All brains were stained with Cresyl violet, a Nissl stain. The boundaries of the HC were defined by reference to the ventricular wall, the brain surface, or differences in neuronal packing density. The HC of juveniles was as large as or larger than that of adults and packing density of HC neurons was 31% higher in juveniles than in adults. Almost all of the 3H-labeled HC neurons were found in a 350-m-wide layer of tissue adjacent to the lateral ventricle. Within this layer the fraction of 3H-labeled neurons was 50% higher in juveniles than in adults. We conclude that the HC of juvenile chickadees recruits more neurons and has more neurons than that of adults. We speculate that juveniles encounter greater environmental novelty than adults and that the greater number of HC neurons found in juveniles allows them to learn more than adults. At a more general level, we suggest that (i) long-term learning alters HC neurons irreversibly; (ii) sustained hippocampal learning requires the periodic replacement of HC neurons; (iii) memories coded by hippocampal neurons are transferred elsewhere before the neurons are replaced.

Towards a new proposal to evaluate the learning objects quality in learning strategies for education (QEES)

In Computer Science world several proposals have been developed for the assessment of the quality of the digital objects, based on the capabilities and facilities offered by current technologies and the available resources. Years ago researchers and specialists from both educational and technological areas have been committed to the development of strategies that improve the quality of education. At present, in the field of teaching-learning, another important aspect is the need to improve the manner of gaining knowledge and learning in education, which the use of learning strategies is a major advance in the teaching-learning process in institutions of higher education. This paper presents QEES, a proposal for evaluating the quality of the learning objects employed on learning strategies to support students during their education processes by using information extraction techniques and ontologies.

The aid of machine learning to overcome the classification of real health discharge reports written in Spanish

Hospitals attached to the Spanish Ministry of Health are currently using the International Classification of Diseases 9 Clinical Modification (ICD9-CM) to classify health discharge records. Nowadays, this work is manually done by experts. This paper tackles the automatic classification of real Discharge Records in Spanish following the ICD9-CM standard. The challenge is that the Discharge Records are written in spontaneous language. We explore several machine learning techniques to deal with the classification problem. Random Forest resulted in the most competitive one, achieving an F-measure of 0.876.

Differences between the personal, social and emotional profiles of teaching and computer engineering professionals and students

The evidence suggests that emotional intelligence and personality traits are important qualities that workers need in order to successfully exercise a profession. This article assumes that the main purpose of universities is to promote employment by providing an education that facilitates the acquisition of abilities, skills, competencies and values. In this study, the emotional intelligence and personality profiles of two groups of Spanish students studying degrees in two different academic disciplines – computer engineering and teacher training – were analysed and compared. In addition, the skills forming part of the emotional intelligence and personality traits required by professionals (computer engineers and teachers) in their work were studied, and the profiles obtained for the students were compared with those identified by the professionals in each field. Results revealed significant differences between the profiles of the two groups of students, with the teacher training students scoring higher on interpersonal skills; differences were also found between professionals and students for most competencies, with professionals in both fields demanding more competencies that those evidenced by graduates. The implications of these results for the incorporation of generic social, emotional and personal competencies into the university curriculum are discussed.

The entomologist's useful compendium; or, An introduction to the knowledge of British insects, comprising the best means of obtaining and preserving them, and a description of the apparatus generally used; together with the genera of Linné, and the modern method of arranging the classes...according to the views of Dr. Leach...with instructions for collecting and fitting up objects for the microscope.

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The EU, China and Southeast Asia: Divergent Views of Dealing with Human Security. Jean Monnet/Robert Schuman Paper Series Vol. 14 No. 8, May 2014

Introduction. This chapter takes a closer look at the European Union (EU), China, and the Association of Southeast Asian Nations (ASEAN)’s respective approaches to dealing with non-traditional security (NTS) challenges by investigating their policies toward Burma/Myanmar—a source country of numerous such challenges. It argues that, although all, as members of the ASEAN Regional Forum (ARF), see the need for multilateral solutions to fight organized crime, provide disaster relief, combat terrorism, prevent drug trafficking, etc., they differ with respect to the steps to be taken to protect human security in Asia-Pacific. China, initially hesitant to join the ARF for fear that other members might try to contain it, has come to value the principal forum for NTS challenges in the Asia-Pacific region since, like many ASEAN countries, it is a big proponent of non-interventionism, non-use of force, consensus decision-making, that is, the confidence-building mechanisms commonly referred to as the ‘ASEAN way’.2 The EU, as a strong proponent of human rights and the rule of law, repeatedly, has criticized ARF members for allowing sovereignty-related norms to get in the way of the protection of human rights, but it has refrained from assuming the role of norm exporter. As will be seen in the case of Burma/Myanmar, the EU does make its opinions heard and, when necessary, will take unilateral steps not supported by the ASEAN members of the ARF but, cognizant of the history of the region, for the most part, settles for supporting economic development and aiding in capacity-building, understanding that it would be counter-productive to exert pressure on reluctant ARF members to modify the non-interference norm. The chapter then speculates about the ‘ASEAN way’s’ longevity, arguing that, increasingly, there are internal and external dynamics that seem to indicate that the ‘ASEAN way,’ at least in its current form, may not be here to stay. The conclusion looks at what might be in store for Burma/Myanmar in the years to come.