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Abstract

Objective: The current study aims to investigate, which of the factors are directly and indirectly associated with disordered eating in a non-clinical population of university students in Slovakia. Methods: 302 university students (52.3% female, M age=21) filled in a questionnaire assessing the perceived pressure to be thin, the internalization of appearance ideals, disordered eating, satisfaction of basic psychological needs and the regulation of exercise. The hypothesized model was tested with a parallel multiple mediation analysis using PROCESS macro.
Results: The pressure to be thin from partner, the internalization of appearance ideals and the controlled regulation of exercise were directly associated with disordered eating. The pressure to be thin from media was indirectly associated with disordered eating through the internalization of appearance ideals. The pressure to be thin from partner and from family as well as satisfaction of the need for competence were indirectly associated with disordered eating through the controlled regulation of exercise.
Conclusions: The results of the current study support the focus of the existing eating disorder interventions at decreasing the internalization of sociocultural appearance ideals. The results suggest the usefulness of incorporating the promotion of autonomous regulation of behaviour, especially with regard to exercising, within the prevention and intervention field.
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Authors and Affiliations

Eva Paulisova
1
ORCID: ORCID
Olga Orosova
2
ORCID: ORCID
Lucia Barbierik
2

  1. Pavol Jozef Safarik University in Kosice, Faculty of Arts, Department of Psychology, Kosice
  2. Pavol Jozef Safarik University in Kosice, Faculty of Arts, Department of Educational Psychology and Psychology of Health, Kosice
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Abstract

This work aims to evaluate the treated wastewater from the activated sludge treatment plant in the City of Sidi Bel Ab-bes (North-Western Algeria) which is required for reuse in irrigation. The control of irrigated areas downstream is done based on a pedological study. Physico-chemical analysis such as (pH, BOD5, COD and SS) indicate results in Algerian and international standards required by the WHO. The Sodium Adsorption Ratio and Electrical Conductivity values of the treated wastewater belong to the C3-S1 class. The treated wastewater has a fairly good microbiological quality that meets Algerian standards. The helminth eggs are practically absent. The concentrations of heavy metals are much lower than the limits prescribed in the Algerian decrees. Therefore, the overall processing plant efficiency is satisfactory and has the char-acteristics of a good treated water quality for reuse in the field of irrigation while protecting the environment. The pedolo-gical study of the soil samples shows that the most dominant fraction is undeveloped calcimagnetic. The planned irrigation plain covers an area of about two thousand hectares. Depending on the crops to irrigate; the development and nature of the necessary or recommended improvements, the proposed irrigation perimeter could be classified into five categories in which only three categories are irrigable. Water projects have been proposed to ensure the irrigation of three subdivided sectors.

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Authors and Affiliations

Zakari Mahfoud
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Abstract

Refill friction stir spot welding (RFSSW) was used to weld the 2060 aluminum alloy with 2 mm thickness. Joint formation, defect characteristics and mechanical properties were investigated. Results show that stir zone (SZ) is clarified into dynamic recrystallization zone (DRZ) and heat extruded zone (HEZ) due to different microstructural features. The size of void near the hook tip decreases with the increase of the plunge depth. Different hook morphologies are obtained under different plunge depths. The tensile-shear load of joint with the void defect initially decreases and then increases with increasing plunge depth. The mean loads of joints under different plunge depths are in the range of 5.1-5.8 kN. The void separates the hook from lap interface, so the cracks initiating from the hook propagate along the sleeve retreating path. The hook has a larger influence on the tensile-shear load of joint than void. All the tensile specimens present a shear-plug fracture mode.

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Authors and Affiliations

Zhen Shang
Yingying Zuo
Shude Ji
ORCID: ORCID
Yue Wang
ORCID: ORCID
Peng Chai
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Abstract

Casing treatment in the form of circumferential grooves over a rotor blade tips is used for improvement of an axial compressor performance. Usually, these grooves extend compressor’s stall range (stable operational range) but decrease its efficiency. In the paper, there are presented main results of investigations on grooves that influence positively efficiency of compressor. There were investigated traditional (typical) and newly developed groove configurations. Certain grooves combine increase in efficiency with extension in stall range.

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Authors and Affiliations

Vitaliy Nezym

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