O conhecimento da variabilidade espacial dos atributos do solo que influenciam na produtividade agrícola é fundamental para a implantação da agricultura de precisão. Se o comportamento desses atributos apresentar dependência espacial, recomendase o emprego da geoestatística na descrição de sua…

Índice/Index




Editorial



Economía/Economy


Ambiente, equidad y desarrollo. ¿Utopia o realidad?.
Environment, equity and development. ¿Utopia or reality?.

Pérez Nácar, Efrén



>Educación/Education

Data quality issues have taken on increasing importance in recent years. In our research, we have discovered that many “data quality” problems are actually “data misinterpretation” problems – that is, problems with data semantics. In this paper, we first illustrate…

Whereas traditional explanations of differences in long-run paths of development across the Americas generally point to the significance of differences in national heritage or religion, we highlight the relevance of stark contrasts in the degree of inequality in wealth, human…

Neural network applications in microwave engineering have been reported since the 1990s. Description of artificial neural
networks and their key issues, namely architectures, paradigms, training methods, data sets formation, learning and
generalization errors, learning speed, etc., in the context of…

When I first started reading Ms. Le Guin's novel, I was struck by the presence in it of what I then recognized as elements from Eastern philosophy and thought, in particular Taoism. Long before mention is made of the yin-yang…

The guava (Psidium guajava 1.) cv. Paluma has been cultivated in Sao Francisco Valley, Northeastern of Brazil, for in natura consumption and processing purposes. In spite of its importance, there are few scientific knowledge regarding guava physiology, nutrition, irrigation and…

En este artículo se describe un procedimiento para asignar de forma automática etiquetas de dominio a las glosas de WordNet. Una de las motivaciones principales del trabajo es enriquecer fuentes léxicas con información de WordNet. Para ello, se utilizan los…

Biomedical research ethics is a hot topic in USA today as it used to
be when it was born three decades ago. New procedures to preserve
and protect the scientific integrity and the human subjects involved in
clinical trials are…

For 20 years, and more intensively during the last decade, indigenous knowledge has challenged the regime of intellectual property. If this field of law has been, in the past, challenged by new technology, it is now, with the problematic of…