The term prototyping has in recent years become a buzzword in both research and practice of system design due to a number of claimed advantages of prototyping techniques over traditional specification techniques. In particular it is often stated that prototyping facilitates the users' involvement in the development process. But prototyping does not automatically imply active user involvement! T...

In order to better understand the nature of disturbances to wintering snowy plovers, I observed snowy plovers and activities that might disturb them at a beach near Devereux Slough in Santa Barbara, California, USA. Disturbance (activity that caused plovers to move or fly) to wintering populations of threatened western snowy plovers was 16 times higher at a public beach than at protected beache...

Studies on the vector competence and their role in the transmission of malaria and filariasis in Makurdi, Nigeria were carried out over a 6 month period in four localities. A total of 475 adult female mosquitoes were morphologically identified and dissected using standard procedures to determine the parity rates, insemination rates, age structure, oocyst, sporozoite and microfilarial worms. 156...

Chimpanzees cooperate in a variety of contexts, but communicating to influence and regulate cooperative activities is rare. It is unclear whether this reflects chimpanzees' general inability or whether they have found other means to coordinate cooperative activities. In the present study chimpanzees could help a partner play her role in a mutually beneficial food-retrieval task either by transf...

This paper examines the effects of using weblog technologies to support cooperative learning in higher education. The study focused on the effects of features embedded in weblogs on social interactions, time lags, and cognitive loads. A quasi-experimental control-group research design was adopted. The participants were 115 undergraduates who were randomly divided into two groups. Students in th...

This study examined the effects of a tactile prompting device (the Gentle Reminder) as a prompt for a student with autism to make verbal initiations about his play activities. A multiphase multielement design was used to assess the effects of the device in prompting initiations toward an adult in three different play contexts. Follow-up probes were conducted during cooperative learning activiti...

Using a hairpin primer/template RNA derived from sequences present at the 3' end of the poliovirus genome, we investigated the RNA-binding and elongation activities of highly purified poliovirus 3D polymerase. We found that surprisingly high polymerase concentrations were required for efficient template utilization. Binding of template RNAs appeared to be the primary determinant of efficient ut...

This study examined the impact of cooperative learning activities on student achievement and attitudes in large-enrollment (>250) introductory biology classes. We found that students taught using a cooperative learning approach showed greater improvement in their knowledge of course material compared with students taught using a traditional lecture format. In addition, students viewed cooperati...

This study examined the effect of cooperative inspection activities on performance Farmers societies in Anambra State. The Specifically modeled education and training, frequent inspection, inspectors visitation total output societies, membership strength Farmers,community investment members participation Cooperative Societies State respective using a descriptive survey design sample 96 manageme...

This study describes a survey (n=700) carried out in 14 elementary schools in the municipality of Caxias, State of Maranhão, Brazil. The survey was conducted between July and De-cember 2007 in schools from seven neighborhoods on the outskirts of the western part of the municipality , where for the past three years high densities of immature Aedes aegypti mosquitoes have been recorded. The stude...