Navigating Conflict: A Transcendental Phenomenological Study of Online Higher Education Subject Matter Experts

This qualitative study, using phenomenology, examined the lived experiences of subject matter experts navigating conflict in the higher education online course development process. Examination of conflict from the perspective of the subject matter expert in this context was important because of impacts on subject matter experts, design and development team members, course quality, instructors, students, and institutions. Research questions that guided the study were: What were the potential sources of conflict encountered by the subject matter expert throughout the course development process? What did the conflict mean to the subject matter expert in the course development process? How did the subject matter expert manage conflict in the course development process? What implications did the conflict have, if any, on the course development product generated by the subject matter expert? What implications did the conflict have, if any, on the relationships with others involved in the course development process? What adjustments, if any, did the subject matter expert make as a result of the conflict? How did those adjustments impact the final course product and relationship dynamics? Theories integrated to illuminate participant experiences included collaborative theory, design theory, dual concerns theory, learning theory, and systems design theory. Data analysis was conducted using the transcendental model. The findings provided insight into how subject matter experts identified, avoided, mitigated, and managed conflict experienced in the online course development process that had the potential to impact direct and indirect stakeholders

A comparative study of experimental configurations in synchrotron pair distribution function

The identification and quantification of amorphous components and nanocrystalline phases with very small crystal sizes, smaller than ~3 nm, within samples containing crystalline phases is very challenging. However, this is important as there are several types of systems that contain these matrices: building materials, glass-ceramics, some alloys, etc. The total scattering synchrotron pair distribution function (PDF) can be used to characterize the local atomic order of the nanocrystalline components and to carry out quantitative analyses in complex mixtures. Although the resolution in momentum transfer space has been widely discussed, the resolution in the interatomic distance space has not been discussed to the best of our knowledge. Here, we report synchrotron PDF data collected at three beamlines in different experimental configurations and X-ray detectors. We not only discuss the effect of the resolution in Q-space, Qmax ins of the recorded data and Qmax of the processed data, but we also discuss the resolution in the interatomic distance (real) space. A thorough study of single-phase crystalline nickel used as standard was carried out. Then, selected cement-related samples including anhydrous tricalcium and dicalcium silicates, and pastes derived from the hydration of tricalcium silicate and ye’elimite with bassanite were analyzed.This work is part of the PhD of Mr. Jesus D. Zea-Garcia. This work was supported by Spanish MINECO and FEDER [BIA2017-82391-R research project and I3 [IEDI-2016-0079] program]

Platonic Relationships in Metal Phosphonate Chemistry: Ionic Metal Phosphonates

Phosphonate ligands demonstrate strong affnity for metal ions. However, there are several cases where the phosphonate is found non-coordinated to the metal ion. Such compounds could be characterized as salts, since the interactions involved are ionic and hydrogen bonding. In this paper we explore a number of such examples, using divalent metal ions (Mg2+, Ca2+, Sr2+ and Ni2+) and the phosphonic acids: p-aminobenzylphosphonic acid (H2PABPA), tetramethylenediamine-tetrakis(methylenephosphonic acid) (H8TDTMP), and 1,2-ethylenediphosphonic acid (H4EDPA). The compounds isolated and structurally characterized are [Mg(H2O)6] [HPABPA]2 6H2O, [Ca(H2O)8] [HPABPA]2, [Sr(H2O)8] [HPABPA]2, [Mg(H2O)6] [H6TDTMP], and [Ni(H2O)6] [H2EDPA] H2O. Also, the coordination polymer {[Ni(4,4’-bpy)(H2O)4] [H2EDPA] H2O}n was synthesized and characterized, which contains a bridging 4,4’-bipyridine (4,4’-bpy) ligand forming an infinite chain with the Ni2+ cations. All these compounds contain the phosphonate anion as the counterion to charge balance the cationic charge originating from the metal cation.K.D.D. acknowledges the Research Committee of the University of Crete (Grant KA 10329) for financial suppor

In-situ high-pressure powder X-ray diffraction study of α -zirconium phosphate

The high-pressure structural chemistry of -zirconium phosphate, -Zr(HPO4) 2H2O, was studied using in-situ high-pressure diffraction and synchrotron radiation. The layered phosphate was studied under both hydrostatic and non-hydrostatic conditions and Rietveld refinement carried out on the resulting diffraction patterns. It was found that under hydrostatic conditions no uptake of additional water molecules from the pressure-transmitting medium occurred, contrary to what had previously been observed with some zeolite materials and a layered titanium phosphate. Under hydrostatic conditions the sample remained crystalline up to 10 GPa, but under non-hydrostatic conditions the sample amorphized between 7.3 and 9.5 GPa. The calculated bulk modulus, K 0 = 15.2 GPa, showed the material to be very compressible with the weak linkages in the structure of the type Zr—O—P

Effect of Body Mass Index and Physical Fitness on Injury Risk for Soldiers during Army Basic Combat Training

Please view abstract in the attached PDF fil

Poly[aqua(μ-vinyl­phospho­nato)cadmium]

The title compound, [Cd(C2H3O3P)(H2O)]n, was obtained from vinyl­phospho­nic acid and cadmium nitrate. The vinyl groups project into the inter­lamellar space and the structure is held together via van der Waals forces. The Cd2+ ion is six-coordinate and the geometry is best described as distorted octa­hedral, with O—Cd—O angles falling within the range 61.72 (13)–101.82 (14)°. Five of the coordinated oxygen atoms originate from the phospho­nate group and the sixth from a bound water molecule. Cd—O distances lie between 2.220 (3) and 2.394 (2) Å. The water mol­ecule is hydrogen bonded to a phospho­nate oxygen atom

Azido­(benzoyl­acetonato-κ2 O,O′)[1-phenyl-3-(2-pyridylmethyl­imino)but-1-en-1-olato-κ3 N,N′,O]cobalt(III)

In the title complex, [Co(C16H15N2O)(C10H9O2)(N3)], the CoII atom adopts an octa­hedral coordination geometry by a tridentate Schiff base, a bidentate benzoyl­acetonate and an azide ligand. The imine N atom of the tridentate ligand is trans to the benzoyl O atom of the bidentate ligand and the azide ligand is trans to the acetyl O atom of the bidentate ligand. Non-classical intra­molecular Car­yl—H⋯O hydrogen bonds are present in the structure