OF THESIS AXOLOTL PAEDOMORPHOSIS: A COMPARISON OF JUVENILE, METAMORPHIC, AND PAEDOMORPHIC AMBYSTOMA MEXICANUM BRAIN GENE TRANSCRIPTION Unlike many amphibians, the paedomorphic axolotl (Ambystoma mexicanum) rarely undergoes external morphological changes indicative of metamorphosis. However, internally, some axolotl tissues undergo cryptic metamorphic changes. A previous study examined interspec...

Purpose − An alarming number of spreadsheet faults have been reported in the literature, indicating that effective and easy-to-apply spreadsheet testing techniques are not available for “non-technical”, end-user programmers. This paper aims to alleviate the problem by introducing a metamorphic testing (MT) technique for spreadsheets. Design/methodology/approach − The paper discussed four common...

-l. The effect of metamorphosis on the serum proteins of three genera and five species of ambystomatid salamanders was examined by electrophoresis. 2. Four of the five species showed a significant increase in the fastest fraction upon metamorphosis. 3. Three of the five species showed a significant metamorphic increase in the second fastest fraction. 4. Four of the five exhibited a significant ...

when testing a program, correctly executed test cases are seldom explored further, even though they may carry useful information. Metamorphic testing proposes to generate follow-up test cases to check important properties of the target function. It does not need a human oracle for output prediction and comparison. An “oracle” in software testing is a procedure by which testers can decide whethe...

Malware detection is a crucial aspect of software security. Malware typically recur to a variety of disguise and concealing techniques in order to avoid detection. Metamorphism is the ability of a program to mutate its form yet keeping unchanged its functionality and therefore its danger in case of malware. A major challenge in this field is the development of general automatic/systematic detec...

Although much is known about the ecological significance of metamorphosis and metamorphic timing, few studies have examined the underlying genetic architecture of these traits, and no study has attempted to associate phenotypic variation to molecular variation in specific genes. Here we report on a candidate gene approach (CGA) to test specific loci for a statistical contribution to variation i...

In this paper the problem of dynamic selfreconfiguration of a class of modular robotic systems referred to as metamorphic systems is examined. A metamorphic robotic system is a collection of mechatronic modules, each of which has the ability to connect, disconnect, and climb over adjacent modules. We examine the near-optimal reconfiguration of a metamorphic robot from an arbitrary initial confi...

We have studied the syn-kinematic very low-grade metamorphism in a polyphase Variscan deformed region using X-ray diffraction techniques. Two phases of regional metamorphism are related to their respective episodes of penetrative deformation in the southern Central Iberian Zone. The data obtained suggest that the rocks did not reach metamorphic equilibrium, but strain favoured the progress of m...

comparison between our approach and commercial virus scanners. I would also like to thank my friends and schoolmates for their technical and emotional support. I want to thank Yue Wang for performing the virus scanning, and Peter Hey for repairing my hard disk after it crashed at the most critical moment. Finally I want to thank my family for their understanding and support throughout my five y...