A virtual environment (VE) has been designed for functioning as a threedimensional interface to a repository of images and sounds. This paper attempts to study design interface in VEs. This study first examines the characteristics of VEs. The difference between physical and virtual environments is also studied. The relationship between both is classified as three types, i.e. complement, replace...

Internet access services based on cellular technology have grown significantly over the years. Regarding total number of users, Brazil does not have global stand-out participation yet. However, recent data reveals significant growth in the adoption of those services in Brazil. This study intends to assess the relative influence of the relevant factors that affect the adoption of mobile Internet...

In this policy brief we argue that there is little debate about the statistical properties of value-added model (VAM) estimates of teacher performance, yet, despite this, there is little consensus about what the evidence about VAMs implies for their practical utility as part of high-stakes performance evaluation systems. A review of the evidence base that underlies the debate over VAM measures,...

A commonly used technique for global ow analysis of Prolog programs is abstract interpretation. Until now nearly all abstract interpretation systems for Prolog are research prototypes and very slow. These systems are not suitable for the integration in Prolog compilers. So we developed the VAMAI, an abstract machine for the abstract interpretation of Prolog. The Vienna Abstract Machine (VAM) is...

Background: Symbiotic association with different microbes is an integral and ecologically vital component of legumes. Most previous studies focused on sole application microbial agents, limited investigating the effects co-inoculation agents under tillage practices soil properties. The current study aimed to assess effect practice seed treatment biofertilizers inoculations chemical properties n...

The experiment was carried out at Agricultural Research Station, Perumalapalle, Tirupati, Acharya N. G. Ranga University during kharif season of 2018 on sandy loam soil to study the response phosphorus fertilizer, PSB and VAM yield nutrient content uptake fingermillet. used a Randomized Block design with nine treatments reproduced three times. Among management practices, application RDF + @ 750...

Methane is a powerful greenhouse gas and the principal component of natural gas. Coal seams often contain significant quantities of methane, and underground coal mines must ensure that methane released into the mine during coal extraction does not build to dangerous levels. This is accomplished in part through the use of large-volume ventilation systems that remove methane from the mine and rel...

abstractbackground and objectives: the cultivated tobacco (nicotiana tabacum) is a tropical and annual plant, consisting of a number of species or hybrids belonging to the solanaceae family. bio-chemical reaction to viral infection is different for various plants .one of the most important defensive mechanisms of the host plant against pathogen agents, is biochemical defense and their related c...

Inserting porous media into the micro-scale combustor space could enhance heat recirculation from flame zone, and thus extend flammability limits improve stability. In context of micro-combustors, pore size is comparable to characteristic length. It insufficient treat medium as a continuum with volume-averaged model (VAM). Therefore, pore-scale (PSM) developed consider detailed structure better...