Informatics tools using estimation during pilot training

The human interest in flight simulators and tools that facilitate the effective formation of piloting skills has more than half a century of tradition. Marked growth development of these tools happened after the implementation of digital techniques into the structure of simulators and after the obtainment of independent computer applications the enabling the operator's predispositions and performance level to be controlled and estimated. The questions that are posed in this area of such specific tools have been very often oriented towards the possibility and reasonableness of replacing real training flights with a simulation technique. Working on the problem of improving the level of safety in civil aviation, the authors conducted tests to determine the possibility of formalizing the principles of admittance for computers tools that are identified as OTD (Other Training Device) followed from JAR –STD 3A.005 (f) regulations. One of the aims of the experiments was to confirm the usefulness of the statistical methods that had been used to identify the pilot's skill level estimated for short series of flights. RUT Aviation Training Centre students, whose individual predispositions as operators and performance levels had been estimated using the WOMBAT – CS TOOL, took part in experiments based on elements of flight normalized in JAR – FCL 1.210. In this paper, the authors present and discuss the assumptions, accomplishments, and results of that experiment. First published online: 14 Oct 201

Magnetic-crystallographic phase diagram of superconducting parent compound Fe1+x_{1+x}Te

hrough neutron diffraction experiments, including spin-polarized measurements, we find a collinear incommensurate spin-density wave with propagation vector $\mathbf k =$ ($0.4481(4) \, \,0 \, \, \frac1 2$) at base temperature in the superconducting parent compound Fe$_{1+x}$Te. This critical concentration of interstitial iron corresponds to $x \approx 12$ and leads crystallographic phase separation at base temperature. The spin-density wave is short-range ordered with a correlation length of 22(3) \AA, and as the ordering temperature is approached its propagation vector decreases linearly in the H-direction and becomes long-range ordered. Upon further populating the interstitial iron site, the spin-density wave gives way to an incommensurate helical ordering with propagation vector $\mathbf k =$ ($0.3855(2) \, \,0 \, \, \frac1 2$) at base temperature. For a sample with $x \approx 9(1)$, we also find an incommensurate spin-density wave that competes with the bicollinear commensurate ordering close to the N\'eel point. The shifting of spectral weight between competing magnetic orderings observed in several samples is supporting evidence for the phase separation being electronic in nature, and hence leads to crystallographic phase separation around the critical interstitial iron concentration of 12%. With results from both powder and single crystal samples, we construct a magnetic-crystallographic phase diagram of Fe$_{1+x}$Te for $ 5% < x <17%

Conditions and potential for remote student teaching

Purpose: This article aims to present the potential use and determinants for remote teaching tools in student education. A survey subject is a group of all Jan and Jedrzej Sniadecki UTP University of Science and Technology in Bydgoszcz and a group of all academic teachers. Design/Approach/Methodology: The article presents the results of research conducted among students and employees of the UTP University of Technology and Life Sciences in Bydgoszcz, carried out during the Covid-19 coronavirus pandemic. The presentation of research results was preceded by an analysis of reference books. The method of collecting data from primary sources was an online survey. Because the survey covered the entire surveyed population of UTP students and teaching staff, it was unnecessary to select a sample from the population. This ensured that scientific research is exhaustive. It considers the entire surveyed population, preventing sampling errors, such as lack of full representativeness or random error. Findings: Presented conclusions and summaries are of an applied nature and may form the basis for implementing system solutions for the utilization of remote teaching tools in the student education process. Practical Implications: The research results clearly indicate the enormous potential of these tools in modern education, but it should also be mentioned that the respondent assessment excludes the elimination of traditional teaching classes. The potential of remote learning refers primarily to make the form, accessibility, and methods of selected forms of teaching more attractive. The identified barriers relate to technical conditions (Internet connection parameters) and the nature and nature of activities (e.g., practical exercises, labs) and faculties. Technical barriers outside the competence of the higher education facilities must be addressed systematically, e.g., by offering high-speed mobile internet for students. Originality/Value: The conducted statistical analysis indicates that conducting student and academic staff training in remote learning tool utilization is essential, as it will primarily affect the quality and comfort of work and teaching, but it is also important in the assessment of the use of these instruments, in each of the examined areas.peer-reviewe

Incommensurate Magnetism in FeAs Strips: Neutron Scattering from CaFe4_4As3_3

Magnetism in the orthorhombic metal CaFe$_4$As$_3$ was examined through neutron diffraction for powder and single crystalline samples. Incommensurate (${\bm q}_{\rm m}\approx (0.37-0.39)\times{\bm b}^{\ast}$) and predominantly longitudinally ($\parallel b$) modulated order develops through a 2nd order phase transition at $T_{\rm N}=89.63(6)$ K with a 3D Heisenberg-like critical exponent $\beta=0.365(6)$. A 1st order transition at $T_2=25.6(9)$ K is associated with the development of a transverse component, locking ${\bm q}_{\rm m}$ to $0.375(2){\bm b}^{\ast}$, and increasing the moments from 2.1(1) to 2.2(3) $\mu_{\rm B}$ for Fe$^{2+}$ and from 1.3(3) to 2.4(4) $\mu_{\rm B}$ for Fe$^+$. The {\it ab-initio} Fermi surface is consistent with a nesting instability in cross-linked FeAs strips.Comment: 5 pages, 5 figures, accepted for publication in Phys. Rev. Let

Nouvelles aryl-alkyl-piperazines comportant des acides amines N-acyles, ligands de récepteurs sérotoninergiques

Ce travail présente des nouveaux composés ciblant les récepteurs sérotoninergiques. La première partie traite de la synthèse supposée d'une chimiothèque d'arylpiperazines. Plusieurs composés montrent une haute affinité pour 5-HT1A(K1=3-52nM) . Des tests pharmacologiques pré-cliniques ont révélé des comportements de type agoniste complet ou partiel de 5-HT1A ou antagoniste 5-HT1A/5-HT2A. La synthèse supportée de 64 dérivés sulfonamide de la proline carboxamide est décrite, visant l'obtention d'antagonistes de 5-HT7. La dernière partie traite de la synthèse supportée sur lanternes BAL de dérivés d'arylalkyl amines ciblant les récepteurs des amines biogéniques du SNC. Une synthèse originale supportée d'une nouvelle classe d'arylpipérazines a été présentée. L'étude biologique in vitro a révélé plusieurs doubles ligands 5-TH1A/5-HT2A possédant in vivi une activité anxiolytique et antidépressive. Les résultats du criblage des composés sur 5-HT7 aideront à la conception de nouvelles séries.MONTPELLIER-BU Pharmacie (341722105) / SudocPARIS-BIUP (751062107) / SudocSudocFranceF

Site-Specific CO2 Adsorption and Zero Thermal Expansion in an Anisotropic Pore Network

Detailed neutron powder diffraction (NPD) expts. were carried out on the parent and CO2 adsorbed Mg-MOF-74 (MOF: metal-org. framework). Data collected at low temp. revealed two CO2 adsorption sites on the pore surface and multiple changes in the framework as a function of CO2 loading. Upon heating the samples to room temp., the data revealed minimal changes in expansivity upon adsorption of up to 0.94 CO2/Mg (≈ 25% mass fraction). Further, temp.-dependent data collected on the bare framework reveals net zero thermal expansion between 10 and 475 K