Teachers' perceptions toward the vitamin education support service [Vitamin egitsel destek hizmetine ilişkin ögretmen Algilari]

This study aims to identify teachers' perceptions toward Vitamin's effectiveness and usefulness. It is a descriptive study designed on the basis of the survey model. The study group consists of 209 teachers from various branches employed in the primary schools in the central province of Kirsehir. The data were collected using the Scale on Teachers' Perceptions toward Vitamin (?=0.956) developed by the researchers. The collected data were subjected to frequency, percentage, arithmetic means, standard deviation, t-test, Anova, LSD and correlation statistics. The results of the analyses revealed that the teachers had both positive and negative attitudes toward Vitamin and that a great majority of them did not use Vitamin. In addition to these results, it was also observed that the teachers' attitudes toward Vitamin changed with their branches, duration of employment and frequency of Vitamin use

The impact of COVID-19 anxiety on eating disorders in medical and Master’s students

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2 virus) first appeared in China with rapidly progressing pneumonia of unknown cause. Our goal was to investigate the relationship between COVID-19 anxiety and eating disorders among front-line physicians during the COVID-19 pandemic. SUBJECTS AND METHODS: This study is observational, prospective and analytical. The study population age range is from 18 to 65 years and includes healthcare professionals with a Master’s degree or higher or subjects who have completed their education. We administered the Demographic Data Form, the Eating Disorder Rating Scale (EDRS), and the Coronavirus Anxiety Scale (CAS) to “Health professionals with a Master’s degree or higher education, or who are receiving or have received Medical Specialization Training” across Turkey. RESULTS: The study initially included 312 people in total, but 19 were excluded (9 due to a pre-existing eating disorder, 2 for pregnancy, 2 for colitis, 4 for Diabetes Mellitus, 1 for depression, 1 with generalized anxiety disorder – GAD), leaving 293 subjects (82 men and 211 women). Assistant doctor was the highest status in the study group (56%), while specialization Training was the highest level of training (60.1%). CONCLUSIONS: We presented a detailed account of effects of scales and parameters related to the COVID-19 process on eating disorders and weight change in a specific population. These effects show both anxiety scores related to COVID-19 and eating disorders on various aspects and identify various variables influencing these scales in the main groups and subgroups

Analysis of a Skid Type Landing Gear of a Rotary Wing UAV by Experimental and Numerical Methods

The objective of this study was to analyze the results obtained from tests done by simulating the crash landing of a rotary wing unmanned air vehicle with a skid type landing gear. The experimental and computational methods were used in the simulation tests. In the first portion of the test; namely with the experimental method, the impact loads induced by the simulated crash landing and the stresses, strains, deformations generated by these loads, were recorded by drop test apparatus. In the second portion of the test with the computational method, free falling of the skid type landing gear was modeled and crash landing test was simulated numerically by using ANSYS code. Experimental methods were applied on four skid landing gear specimens with different shapes. Each of the test samples used in the following test was evolved because each sample was developed and redesigned based on the feedback results obtained from the former test.The first three test specimens were manufactured from 2024 T3, 7075 T6 and 6061 T6 aluminum alloys respectively and all of them were curved in Π-form with a solid cross section. The last and fourth specimen was also manufactured from 6061 T6 aluminum alloy and it was curved in a hollow semi-circle form (∩-form). It is concluded that the last and fourth developed specimen was the best in absorbing the impact energy and enduring the crash

Analysis of a skid type landing gear of a rotary wing UAV by experimental and numerical methods

The objective of this study was to analyze the results obtained from tests done by simulating the crash landing of a rotary wing unmanned air vehicle with a skid type landing gear. The experimental and computational methods were used in the simulation tests. In the first portion of the test; namely with the experimental method, the impact loads induced by the simulated crash landing and the stresses, strains, deformations generated by these loads, were recorded by drop test apparatus. In the second portion of the test with the computational method, free falling of the skid type landing gear was modeled and crash landing test was simulated numerically by using ANSYS code. Experimental methods were applied on four skid landing gear specimens with different shapes. Each of the test samples used in the following test was evolved because each sample was developed and redesigned based on the feedback results obtained from the former test.The first three test specimens were manufactured from 2024 T3, 7075 T6 and 6061 T6 aluminum alloys respectively and all of them were curved in Π-form with a solid cross section. The last and fourth specimen was also manufactured from 6061 T6 aluminum alloy and it was curved in a hollow semi-circle form (∩-form). It is concluded that the last and fourth developed specimen was the best in absorbing the impact energy and enduring the crash

1-((E)-{(1R,2R)-2-[(E)-(2-Hydr-oxy-1-naphth-yl)methyl-eneamino]cyclo-hexyl} iminiometh-yl)naphthalen-2-olate: A Schiff base compound having both OH and NH character

The title Schiff base compound, C28H26N2O2, possesses both OH and NH tautomeric character in its mol-ecular structure. While the OH side of the compound is described as an inter-mediate state, its NH side adopts a predominantly zwitterionic form. The mol-ecular structure of the compound is stabilized by both N+ - H?O- and O - H?N intra-molecular hydrogen bonds. There are two weak C - H?O hydrogen bonds leading to polymeric chains of topology C(5) and C(13) running along the b axis of the unit cell. In addition, inter-molecular C - H?? inter-actions serve to stabilize the extended structure. © International Union of Crystallography 2007

The Synthesis, Structural Characterization and Conformational Analysis of (1,3-Bis(2-methyl-4-diethylaminophenyl)imidazolidin-2-ylidene)chloro(1, 5-cyclooctadiene)rhodium(I)

A four-coordinated Rh(I) complex with a new heterocyclic carbene ligand, functionalized by amino donor pendants, 4, was synthesized and characterized by elemental analyses, NMR and IR spectroscopy, and the molecular structure of the title compound has been determined by X-ray crystallography. Crystallographic data: monoclinic, P21/m, a = 7.9307(5), b = 25.0061(12), c = 8.0780(6) Å, ß = 101.366(6)°, V = 1570.58(17) Å3, ?calc = 1.3515(1) g cm-3, Z = 2. The experimentally obtained structural parameters for compound 4 compare reasonably well with those calculated at the semi-empirical ZINDO/1 level of theory carried out to elucidate conformational flexibility and steric hindrances. © 2005 Verlag der Zeitschrift für Naturforschung