Educational technology serves two roles: as a delivery mechanism for instruction and as a learning tool used by students. In the 21st century, technology allows for 24/7 access to information, constant social interaction, and easily created and shared digital content. It also enables more student-centered and collaborative learning by allowing students to be creative, innovative producers of multimedia projects and solutions. The goals of educational technology are to improve teaching, make the learning process more efficient and effective, and address issues of learning, teaching, and social organization through educational research.
This document shows 3 pairs of "Before" and "After" photos. The photos appear to demonstrate examples of photo retouching work done by Jim Richmond, as the title suggests photo retouching and Jim Richmond's name. The "After" photos seem to have adjustments made to improve or enhance the appearance of the people in the photos compared to the original "Before" photos.
In working machines like wheel loaders the human operator is essential for the performance of the total system. Productivity and energy efficiency are both dependent not only on inherent machine properties and working place conditions, but also on how the operator manoeuvres the machine. In order to operate energy-efficient the operator has to experience the machine as harmonic. This is important to consider during the development of such working machines.
The influence of the human operator is an aspect that is traditionally neglected in dynamic simulations conducted in concept design, because the modelling needs to be extended beyond the technical system. In the research presented in this paper we show two approaches to rule-based simulation models of a wheel loader operator. Both operator models interact with the machine model just as a human operator does with the actual machine. It is demonstrated that both operator models are able to adapt to basic variations in workplace setup and machine capability. A "human element" can thus be introduced into dynamic simulations of working machines, providing more relevant answers with respect to operator-influenced complete-machine properties such as productivity and energy efficiency.
Operability of a machine is traditionally evaluated by professional test operators using physical prototypes. The presented research demonstrates how this can be complemented by a calculated measure for the operator’s control effort, derived from the recorded control commands of the machine operator. This control effort measure can also be calculated from the control commands of an operator model in a simulation, such as those presented here. It thus also allows for an assessment of operability already in the concept design phase.
Manifest destiny was the belief that American expansion westward was inevitable and beneficial. A famous painting depicts an angel guiding colonists westward, representing the concept of manifest destiny. Pictures show colonists traveling west on trails, demonstrating their drive to move in that direction as the sun set, in line with the principle of manifest destiny.
Manifest destiny was the belief that American expansion westward was inevitable and beneficial. A famous painting depicts an angel guiding colonists westward, representing the concept of manifest destiny. Pictures show colonists traveling west on trails, demonstrating their drive to move in that direction as the sun set, in line with the principle of manifest destiny.
This document summarizes a conflict between indigenous groups and the Peruvian government over exploitation of the Amazon rainforest. In 2009, violent clashes broke out between police and Amazon tribes protesting new decrees allowing oil/gas concessions on their ancestral lands. At least 31 people were killed in the clashes. The conflict was part of years of growing tensions as tribes protested pollution from oil companies and further deforestation threatening their way of life. Deforestation in the Amazon causes conflicts over land and human rights issues for indigenous groups throughout South America.
The document contains a worksheet with activities for students involving reading comprehension, word searches, unscrambling words, connecting rhyming words, and filling in blanks. The activities include texts about a seal, a rooster and fig, a butterfly party, and the mischievous wolf. Students are asked to identify words with certain letters, summarize parts of the texts, connect images to words, and continue or rewrite parts of the stories.