3.1 Distributed objects technology
This unit looks at some of the architectural and programming paradigms used in distributed system development. You will learn about synchronous and asynchronous message passing, distributed objects technology and event-based bus architecture, before finally moving on to tuple architecture.
Next steps After completing this unit you may wish to study another OpenLearn Study Unit or find out more about this topic. Here are some suggestions:
After completing this unit you may wish to study another OpenLearn Study Unit or find out more about this topic. Here are some suggestions:
Endometrial Cancer Risks and Treatments
This is a self-assessment of knowledge around the epidemiology and late effects of cancer survival. Themes emphasized in this module are: epidemiology of survival; late effects; psychosocial concerns; secondary prevention; and strategies for behavior change. This assessment is based on the self-study tutorial of the same name.
Seizures and Epilepsy (Spanish)
This patient education program discusses different types of seizures including epileptic. The causes, symptoms, diagnosis, and treatment options for epilepsy are reviewed. It also covers what to do when a seizure occurs, how to live with seizures, and preventive measures. This resource is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.
Fear and Trembling - Preamble from Heart III - Existentialism in Literature and Film
Phil 7: Existentialism in Literature and Film - Spring 2006. The course will be organized around various attempts to reinterpret the Judeo/Christian God, and to determine in what sense, if at all, such a God is still a living God. We will study Dostoyevsky's and Kierkegaard's attempts to preserve a non-theological version of the God of Christianity, as well as Nietzche's attempt to save us from belief in any version of God offered by our tradition. We will view and discuss three films that deal
Anterior end of Daphnia
Anterior end of Daphnia showing beating heart - note moving eyes and other body structures.
Some birds, especially owls, produce pellets as waste. These pellets usually contain undigested fur and bones from whatever animal the owl has eaten. You can pick through these pellets to discover what owls eat.
Aquatic Animal Skeleton - Ball and Socket Joint
The ball and socket joint of an aquatic animal allows the bones connected to it to move in all sorts of directions. It is usually associated with the shoulder or hip area and connect to appendages such as flippers, limbs, or tails.
On the Yukon River
In this video segment adapted from the Yukon River Panel, visit fishing communities along the Yukon River and see how Alaska Native peoples exercise stewardship of salmon to ensure that it remains a central food source and cultural touchstone.
In a Land of Giants
In this video segment from Cyberchase, the CyberSquad must scale down a large boat to escape the land of Proporciona, a land of giants.
In this activity, students learn how engineers use solar energy to heat buildings by investigating the thermal storage properties of some common materials: sand, salt, water and shredded paper. Students then evaluate the usefulness of each material as a thermal storage material to be used as the thermal mass in a passive solar building.
"Computational Biology: Genomes, Networks, Evolution, Fall 2008"
" This course focuses on the algorithmic and machine learning foundations of computational biology, combining theory with practice. We study the principles of algorithm design for biological datasets, and analyze influential problems and techniques. We use these to analyze real datasets from large-scale studies in genomics and proteomics. The topics covered include: Genomes: biological sequence analysis, hidden Markov models, gene finding, RNA folding, sequence alignment, genome assembly Networ
How to Make Baby Pants from a Tshirt
This is a three minute tutorial on making baby or toddler pants out of a tshirt.A sewing machine required. It is easy to follow and would make a good class room project with donated materials and parental assistance.
English Tutorial on Jane Schaeffer Body Paragraph Format
This nine minute video explains the Jane Schaeffer body paragraph writing format and includes the purpose of each of the eight sentences and provide a sample paragraph. Unfortunately, this video is all talking and there isn't any examples shown. A good overview to start this process.
Asian stocks fall despite EU pledge
July 12 - Asian stocks fall despite EU pledge to help Greece and other EU debtors; including allowing a selective default to help Athens deal with its debt. Arnold Gay, reports.
One World Ocean
In this activity, students learn about ocean currents and the difference between salt and fresh water. They use colored ice cubes to see how cold and warm water mix and how this mixing causes currents. Also, students learn how surface currents occur due to wind streams. Lastly, they learn how fresh water floats on top of salt water, the difference between water in the ocean and fresh water throughout the planet, and how engineers are involved in the design of ocean water systems for human use.
Hurricane Bonnie Dissolving Crystal Cathedral
A fly in to a set of nested 3D isosurfaces of constant precipitation density for Hurricane Bonnie, measured by TRMM on August 22, 1998. The isosurfaces a removed one-by-one until only the highest density surface remains, then the surfaces are restored in reverse order.
On the Margins of the Holocaust
Prof. Jan Grabowski of the Department of History, University of Ottawa, discusses the margins of the Holocaust. The video is part of the series "Insights and Perspectives from Holocaust Researchers and Historians", Supported by the Claims Conference. For more lectures, click here: http://www1.yadvashem.org/yv/en/holocaust/insights/video/index.asp
Fact-sheet with images about the Northern Renaissance artist Jan Van Eyck and one of his paintings, the Arnolifini Wedding.
Goldfish have fins to swim with, a tail to steer and swim with, and gills to breathe with. They also have scales for protection. Goldfish live in water.