Can we test geoengineering?

Can We Trust Test Outcomes?

Software development is an on-going process. To ensure that the changes made do not break previous functionality, a regression test suite is maintained along with the source code. The correctness and the side effects of code changes are judged based on the output of the tests. However, are these tests’ outcomes always correct? Does a test failure imply a bug and do all tests passing imply a bug...

Geoengineering: could we or should we make it work?

Schemes to modify large-scale environment systems or control climate have been proposed for over 50 years to (i) increase temperatures in high latitudes, (ii) increase precipitation, (iii) decrease sea ice, (iv) create irrigation opportunities, or (v) offset potential global warming by injecting iron in the oceans or sea-salt aerosol in the marine boundary layer or spreading dust in the stratos...

When Can We Test Less?1

When it is impractical to rigorously assess all parts of complex systems, test engineers use defect detectors to focus their limited resources. In this article, we define some properties of an ideal defect detector and assess different methods of generating one. In the case study presented here, traditional methods of generating such detectors (e.g. reusing detectors from the literature, linear...

How Much Can We Save the Cost from Shifting from Single - Test Strip to Multiple - Test Strip in Point of Care Testing Analysis for Common Clinical Chemistry Parameters ?

Can We Add Auricular Composite Graft to Our Rhinoplasty Armamentarium?

BACKGROUND The ala of the nose, with its particular texture and characteristics, poses both aesthetically and functionally intriguing challenges and is rather problematic regarding choices for reconstructive methods. Both flaps and grafts have been used to restore natural structure of nasal ala. The present study summarizes a ten-year experience of reconstructive surgery using small composite...