966 search results
What chemical compounds might be present in drinking water?
Science, Maths & Technology

What chemical compounds might be present in drinking water?

...determines that a thing is not a poison. The toxicity of a chemical needs to be assessed in a way that relates dose to the receptor, such as an animal or human, and the time of exposure. Criteria, qualitative and quantitative statements of such relationships, are difficult to determine. For example, a high concentration may kill in a short time, but a lower concentration...
View course What chemical compounds might be present in drinking water?
Level 2: Intermediate 6 hrs
Practising science: Reading the rocks and ecology
Science, Maths & Technology

Practising science: Reading the rocks and ecology

...determine where rocks have come from and how they were made. You will also examine the processes involved in determining the ecology of a particular area...Have you ever wondered how scientists analyse the environment? This free course, Practising science: Reading the rocks and ecology, introduces you to the techniques used by science students at residential schools. You...
View course Practising science: Reading the rocks and ecology
Level 1: Introductory 14 hrs
Studying mammals: The social climbers
Nature & Environment

Studying mammals: The social climbers

...determined by food availability. Living in a group may enable members to defend their resources from other groups. However, as they forage together there may be less food available per individual compared to the amount that one individual could find by foraging alone. If food is readily available, the group can be large. For example, geladas feeding on savannah grasses...
View course Studying mammals: The social climbers
Level 1: Introductory 10 hrs
Exploring innovative assessment methods
Education & Development

Exploring innovative assessment methods

...determine assessment for learning. Formative assessments can be something as simple as asking a class question and determining what they understand by the responses. It might also involve learners engaging in a group discussion regarding a topic. In contrast, summative assessments are used to determine what has been learned. For example, a summative assessment could be an...
View course Exploring innovative assessment methods
Level 3: Advanced 12 hrs
Groups and teamwork
Science, Maths & Technology

Groups and teamwork

...determine whether the group is successful or not. This provides a number of ideas that can be used to make sense of group behaviour and to help a group function more effectively. Another side of working in groups is how to cope in, or with, a team of people who have been set up to work on a specific project. Reading 3 looks at the nature of projects and the consequent...
View course Groups and teamwork
Level 2: Intermediate 20 hrs
An introduction to software development
Science, Maths & Technology

An introduction to software development

...determines the extent to which a system does what the customer wants and needs. Usability determines the effort required to learn about, operate, prepare input for and understand the output of a system – that is, how easy the system is to use. Flexibility determines the effort required to modify an operational system – that is, how easily the system can be changed...
View course An introduction to software development
Level 3: Advanced 6 hrs
Never trust a pirate: Christiaan Huygens’s Longitude Clocks
History & The Arts

Never trust a pirate: Christiaan Huygens’s Longitude Clocks

...determined efforts to secure a patent for his ‘longitude clock’ in Holland, France and England. Right down to the present day, it is the spectacular success of these trials which is invoked as the crucial evidence, on the basis of which Huygens’s pendulum-clock timekeepers take their place as a significant step along the path from the theoretical aspiration to...
View article Never trust a pirate: Christiaan Huygens’s Longitude Clocks
Article 10 mins
Companies and financial accounting
Money & Business

Companies and financial accounting

...determining the financial position and financial performance of a company. Similarly, the market prices of services and labour play a vital role in determining company success. In addition, the market for senior managers is relevant for large and listed companies where there is a clear separation between the ownership of the company’s shares and the control of its...
View course Companies and financial accounting
Level 1: Introductory 6 hrs