Deconstructing Videotaped Instruction for Online Delivery: Instructional Design in Reverse

This paper examines a project in which videotaped face-to-face class sessions were converted into interactive instructional modules for Internet delivery. The development of the online class involved the challenge of teaching the advanced Microsoft Office Suite – normally skills learned hands-on – to distance learners. Sixteen interactive modules were eventually produced by using a process the authors describe as the instructional design in reverse. This paper discusses the importance of the proper application of instructional design theory, the actual production processes used for developing the modules, and important lessons learned in working with interactive multimedia course content for online delivery.This paper examines a project in which videotaped face-to-face class sessions were converted into interactive instructional modules for Internet delivery. The development of the online class involved the challenge of teaching the advanced Microsoft Office Suite – normally skills learned hands-on – to distance learners. Sixteen interactive modules were eventually produced by using a process the authors describe as the instructional design in reverse. This paper discusses the importance of the proper application of instructional design theory, the actual production processes used for developing the modules, and important lessons learned in working with interactive multimedia course content for online delivery

Deconstructing Videotaped Instruction for Online Delivery: Instructional Design in Reverse

This paper examines a project in which videotaped face-to-face class sessions were converted into interactive instructional modules for Internet delivery. The development of the online class involved the challenge of teaching the advanced Microsoft Office Suite – normally skills learned hands-on – to distance learners. Sixteen interactive modules were eventually produced by using a process the authors describe as the instructional design in reverse. This paper discusses the importance of the proper application of instructional design theory, the actual production processes used for developing the modules, and important lessons learned in working with interactive multimedia course content for online delivery.This paper examines a project in which videotaped face-to-face class sessions were converted into interactive instructional modules for Internet delivery. The development of the online class involved the challenge of teaching the advanced Microsoft Office Suite – normally skills learned hands-on – to distance learners. Sixteen interactive modules were eventually produced by using a process the authors describe as the instructional design in reverse. This paper discusses the importance of the proper application of instructional design theory, the actual production processes used for developing the modules, and important lessons learned in working with interactive multimedia course content for online delivery

Bis(triphenyl­phospho­ranyl­idene)ammonium iodide

The title compound, C36H30NP2 +·I−, was obtained accidently from crystallization of a reaction mixture containing [(Ph3P)2N]OH and B(OH)3, which was contaminated with MeI. There are two independent [(Ph3P)2N]+ cations and two I− anions within the asymmetric unit. The central PNP angles are non-linear [137.6 (2) and 134.4 (2)°] and the phenyl substituents on P centres adopt different conformations within these two cations

Automatic generation of alignments for 3D QSAR analyses

Many 3D QSAR methods require the alignment of the molecules in a dataset, which can require a fair amount of manual effort in deciding upon a rational basis for the superposition. This paper describes the use of FBSS, a pro-ram for field-based similarity searching in chemical databases, for generating such alignments automatically. The CoMFA and CoMSIA experiments with several literature datasets show that the QSAR models resulting from the FBSS alignments are broadly comparable in predictive performance with the models resulting from manual alignments

NMR Characterization of the Aliphatic β/β Pairing for Recognition of A·T/T·A Base Pairs in the Minor Groove of DNA

Polyamides containing N-methylimidazole (Im) and N-methylpyrrole (Py) amino acids can be combined in antiparallel side-by-side dimeric complexes for sequence-specific recognition in the minor groove of DNA. Because the curvature of four or five contiguous Im−Py rings does not perfectly match the canonical B-helix, β-alanine (β) residues have been inserted to reset the register. Complexes of three pyrrole−imidazole polyamides of sequence composition ImPyPy-X-PyPyPy-Dp, where X = Py, β, or glycine (G), bound to a 13 base pair DNA duplex containing a 9 base pair 5‘-TGTATATCA-3‘ match site were characterized by NMR. NMR titrations and NOESY data combined with restrained molecular modeling show that each polyamide adopts an extended antiparallel dimeric conformation with the ligands fully overlapped around a central Py/Py, G/G, or β/β pair. Conformational exchange is seen near the linker for the G-linked complex, but not with the β or Py linkers. In addition to providing the first direct structural evidence for formation of the aliphatic β/β pairing in the minor groove, models support the idea that the β linker of ImPyPy-β-PyPyPy-Dp provides an optimal combination of size, flexibility, and alignment of the polyamide-paired aromatic subunits in extended, dimeric 2:1 complexes

Oxygen Absorption in Free-Standing Porous Silicon: A Structural, Optical and Kinetic Analysis

Porous silicon (PSi) is a nanostructured material possessing a huge surface area per unit volume. In consequence, the adsorption and diffusion of oxygen in PSi are particularly important phenomena and frequently cause significant changes in its properties. In this paper, we study the thermal oxidation of p+-type free-standing PSi fabricated by anodic electrochemical etching. These free-standing samples were characterized by nitrogen adsorption, thermogravimetry, atomic force microscopy and powder X-ray diffraction. The results show a structural phase transition from crystalline silicon to a combination of cristobalite and quartz, passing through amorphous silicon and amorphous silicon-oxide structures, when the thermal oxidation temperature increases from 400 to 900 °C. Moreover, we observe some evidence of a sinterization at 400 °C and an optimal oxygen-absorption temperature about 700 °C. Finally, the UV/Visible spectrophotometry reveals a red and a blue shift of the optical transmittance spectra for samples with oxidation temperatures lower and higher than 700 °C, respectively

Upper limits on the strength of periodic gravitational waves from PSR J1939+2134

The first science run of the LIGO and GEO gravitational wave detectors presented the opportunity to test methods of searching for gravitational waves from known pulsars. Here we present new direct upper limits on the strength of waves from the pulsar PSR J1939+2134 using two independent analysis methods, one in the frequency domain using frequentist statistics and one in the time domain using Bayesian inference. Both methods show that the strain amplitude at Earth from this pulsar is less than a few times $10^{-22}$.Comment: 7 pages, 1 figure, to appear in the Proceedings of the 5th Edoardo Amaldi Conference on Gravitational Waves, Tirrenia, Pisa, Italy, 6-11 July 200

Improving the sensitivity to gravitational-wave sources by modifying the input-output optics of advanced interferometers

We study frequency dependent (FD) input-output schemes for signal-recycling interferometers, the baseline design of Advanced LIGO and the current configuration of GEO 600. Complementary to a recent proposal by Harms et al. to use FD input squeezing and ordinary homodyne detection, we explore a scheme which uses ordinary squeezed vacuum, but FD readout. Both schemes, which are sub-optimal among all possible input-output schemes, provide a global noise suppression by the power squeeze factor, while being realizable by using detuned Fabry-Perot cavities as input/output filters. At high frequencies, the two schemes are shown to be equivalent, while at low frequencies our scheme gives better performance than that of Harms et al., and is nearly fully optimal. We then study the sensitivity improvement achievable by these schemes in Advanced LIGO era (with 30-m filter cavities and current estimates of filter-mirror losses and thermal noise), for neutron star binary inspirals, and for narrowband GW sources such as low-mass X-ray binaries and known radio pulsars. Optical losses are shown to be a major obstacle for the actual implementation of these techniques in Advanced LIGO. On time scales of third-generation interferometers, like EURO/LIGO-III (~2012), with kilometer-scale filter cavities, a signal-recycling interferometer with the FD readout scheme explored in this paper can have performances comparable to existing proposals. [abridged]Comment: Figs. 9 and 12 corrected; Appendix added for narrowband data analysi

Finally! Insights into the ARCHES Lunar Planetary Exploration Analogue Campaign on Etna in summer 2022

This paper summarises the first outcomes of the space demonstration mission of the ARCHES project which could have been performed this year from 13 june until 10 july on Italy’s Mt. Etna in Sicily. After the second postponement related to COVID from the initially for 2020 planed campaign, we are now very happy to report, that the whole campaign with more than 65 participants for four weeks has been successfully conduced. In this short overview paper, we will refer to all other publication here on IAC22. This paper includes an overview of the performed 4-week campaign and the achieved mission goals and first results but also share our findings on the organisational and planning aspects