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The effect of stressful life events on adolescents with depression: the chain mediating role of basic psychological needs and self-esteem [PDF]

open access: yesBMC Psychology
Purpose Adolescent depression has emerged as a critical global public health concern, with stressful life events identified as key environmental risk factors.
Furong Gou   +6 more
doaj   +2 more sources

Analytical investigation of a new approach to calculation for effective length of the rolling element used in closed end needle roller bearings of driveshaft

open access: yesEuropean Mechanical Science, 2022
The presence of the oscillating motion in a mechanical system, is vital in terms of the service life. Because the machine elements are under effect of fatigue due to the oscillating motion.
Onur Şen, Enver Atik
doaj   +2 more sources

Theoretical Analysis for Basic Dynamic Load Rating and Life Formula of Ball Screw

open access: yesJournal of the Japan Society for Precision Engineering Contributed Papers, 2006
The existing method of calculation for the basic dynamic load rating mentioned in the ISO standard is based on the method used for the angular contact ball bearing and does not align with the one used for the linear bearing. The unit for the rating life, i.e., the Unit Running Life (URL) is defined in terms of 106 rev.
Shigeo Shimizu, Hirokazu Shimoda
exaly   +3 more sources

The Development of a Basic Life Habit Parents Rating Scale for Infant Early Childhood

open access: yesAdonghakoeji, 2011
The purpose of this study was to develop a basic life habit scale for infant early childhood. The participants of this study were composed of 1,000 parents of children aged from two to five years old in the Seoul, Gyeong-gi, and In-cheon areas. For the purposes of data analysis, the study made use of the following methods : descriptive statistics for ...
Myoung-Soon Kim   +2 more
exaly   +2 more sources

Competence approach in teaching the discipline “Life safety and environmental protection” [PDF]

open access: yesE3S Web of Conferences, 2021
The article outlines quantitative criteria of students’ performance results in the course of studying the subject ‘Life Safety’ in the times of online education.
Pushenko Sergey, Aksenova Vera
doaj   +1 more source

ENERGY EFFICIENT BUILDING DESIGN: TIMBER FRAME CONSTRUCTION BASED IN HEMP FIBER INSULATION [PDF]

open access: yesEngineering Heritage Journal, 2022
Energy efficient building concerns to the structure and using the process that is environmental liable and material efficient all around a building lifecycle. The basic principle of this building to minimize the energy consumption for heating and cooling
Shahbaz Nasir Khan, Muhammad Shahzaib
doaj   +1 more source

Effects of advanced life support versus basic life support on the mortality rates of patients with trauma in prehospital settings: a study protocol for a systematic review and meta-analysis [PDF]

open access: yesBMJ Open, 2017
Introduction Advanced life support (ALS) is thought to be associated with improved survival in prehospital trauma care when compared with basic life support (BLS). However, evidence on the benefits of prehospital ALS for patients with trauma is controversial.
Kondo, Yutaka   +4 more
openaire   +2 more sources

Enhanced Fatigue Life Estimation Formula for Angular Contact Ball Bearings Subjected to Combined Loading [PDF]

open access: yes한국정밀공학회지
Rolling bearing fatigue life is an essential criterion in industrial equipment design and manufacturing and requires precise maintenance and replacement predictions. ISO/TS 281:2007 and 16281:2008 are commonly used for angular contact ball bearing (ACBB)
Jin Hyeok Sa   +3 more
doaj   +1 more source

The Influence of Preload on the Work of Angular Contact Ball Bearings

open access: yesArchive of Mechanical Engineering, 2016
Optimum values of preload can be achieved in well-tried constructions and then applied in similar structures. For new structures, it is recommended to calculate the preload force and to test the correctness of calculation by means of experiments.
Kaczor Jarosław, Raczyński Andrzej
doaj   +1 more source

A Rating Analysis of the Development of the Digital Economy in Ukraine [PDF]

open access: yesProblemi Ekonomiki, 2022
The development of the digital economy is an objective process that is actively taking place all over the world nowadays. As a result, basic centers for the production and export of information and communication technologies were formed, which led to the
Yakushko Inna V.
doaj   +1 more source

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