Constructivism is a major intellectual influence on the development of modern learning technology. This paper first reviews the main tenets of the constructivist approach. The application of constructivism to the Information and Computing Sciences (ICS) is then critically discussed. It is argued that constructivism provides a set of ideas that should have a deeper and more widespread impact on ...

Avocado is an important export and consumption product in Colombia, its economic importance expected to increase the coming years. With vast potential territory for avocado cultivation, department of Cauca a crucial area producing this variety. However, small producers region often need more knowledge most suitable locations planting. This study seeks determine ideal areas Hass cultivation usin...

Abstract Indigenous rainwater harvesting (RWH) is a promising tool for increasing water availability and conserving groundwater in arid environments. This study aimed to develop multicriteria analysis (MCA) framework identify rank suitable sites different indigenous RWH systems data-poor areas taking Sana’a Basin, Yemen, as case study. Unlike previous research, this focused only on and, the fir...

In this paper the geometrical relationship of the folds which exist in the Folded Zagros Mountains, including Asef Mountain (northern Iran), were studied. The southern and western zones of the Zagros Mountains are called the Folded Zagros. These zones extend approximately 1,375 km in length with a width ranging from 120 to 250 km. Asef Mountain is located in northern Shiraz (from northern Sarda...

Montgomery’s algorithm [8], hereafter denoted Mn(·, ·), is a process for computing Mn(A,B) = ABN mod n where N is a constant factor depending only on n. Usually, AB mod n is obtained by Mn(Mn(A,B), N −2 mod n) but in this article, we introduce an alternative approach consisting in pre-integrating N into cryptographic keys so that a single Mn(·, ·) will replace directly each modular multiplicati...

Abstract. Development of economic zones has been rapid in recent years and considered as one the effective ways promoting regional growth. Butuan City is categorized a highly urbanized city center Caraga which brings huge impact to growth region. Multi-Criteria Decision-Making Approach (MCDMA) using pairwise comparison method Analytical Hierarchy Process (AHP) Geographic Information System tech...

This study uses a multi-criteria decision analysis approach based on geographic information system (GIS) to identify suitable sites for rainwater harvesting (RWH) structures (such as farm dam, check dam and contour bund) meet irrigation demand in Greater Western Sydney region, New South Wales, Australia. Data satellite image, soil, climate, digital elevation model (DEM) were stored GIS layers m...