Wrong Interpretation Of Data Research Articles

Reply to the Comments on Planar Tetracoordinate Hydrogen: Pushing the Limit of Multicentre Bonding

AbstractRecently, Huo et al. has commented on our communication (Angew. Chem. Int. Ed. 2024, 63, e202317312, DOI: 10.1002/anie.202317312), regarding the multireference character (MRC) of our proposed cluster. Their argument is based on small HOMO–LUMO gap, fractional occupation density (FOD) and CASPT2(12,13) calculations. They also proposed that the singlet planar In4H+ cluster cannot be observed. We present our calculations which reveals that some of their arguments are based on wrong interpretation of data and inadequate use of methodology. While we certainly agree with the strong physical ground of FOD, CASSF and CASPT2 methodology, we believe that such analysis for clusters is not adequate.

Arthropod interrelationships - the phylogenetic-systematic approach1

The Arthropda are a monolphyletic taxon sharing many synapomorphies. The alternative models of polyphyletic origins of the arthropods are shown to be the result of 1. wrong interpretation of data, e. g. interpretation of the tracheate mandible as a “whole limb mandible”, 2. typological thinking, defining taxa on the basis of their overall similarity, and 3. unscientific reasoning, postulation unkown palaeozoic taxa instead of known ones as closest relatives. The main controversy concerns the position of the Tracheata. Are they Mandibulata and the sister group of the Crustacea or are they “Uniramia” and the sister group of the Onychophora? Whereas the Tracheata and Onychophora share only symplesiomorphies, the Tracheata share convincing synapomorphies with the Crustacea. The most important of these are the transformation of the third head appendage to the principal part of the mouth apparatus – this would even be true if the tracheate mandible were a “whole lim mandible”–, and the identical composition of the compound eye ommatidia. The Chelicerata are used as an example, following Lauterbach'S considerations, to demonstrate how fossils enhance our understanling of the evolutionary history of arthropods.

Improving Effectiveness and Reliability in Geotechnical Investigations with a Personal Digital Assistant

Personal digital assistant (PDA) applications to improve the effectiveness and reliability in geotechnical investigations have been developed. Because of PDA's legerity and mobility, it is an excellent choice for use with a simple global position system (GPS) in geotechnical field work, such as site reconnaissance, subsurface investigation, surface investigation, safety evaluation, testing, and instrumentation. Using PDAs in geotechnical engineering can save traditional field paper forms, avoid repeated record input, reduce the risk of wrong data interpretation, and shorten the time and space “barrier” between the office and the field. After the field data are collected on the PDA, they can be transferred to a desktop personal computer (PC) for further processing and reporting. The desktop PC is designated to handle more complicated analyses and visual presentations. Specialized functions of applications to operate PDA and GPS, as well as for the desktop PC, were developed according to the characteristics of the geotechnical tasks. The concept and framework were applied for three geotechnical assistant systems: drilling investigation assistant system, surface geologic investigation assistant system, and slope safety evaluation assistant system. In addition, an example illustrates the application of GPS, PDA, and geographic information systems for debris flow reconnaissance. Using PDAs improves the effectiveness and reliability of geotechnical investigations and is promising for further development.