Hydrothermal synthesis and characterization of monodisperse α-Fe 2 O 3 nanocubes

Micro & nano letters

article

Jing Liu¹  Jie Wang¹  Jincheng Sun¹  Yaru Li¹  Feng Lu² 

[1] School of Municipal and Environmental Engineering, Shandong Jianzhu University;Institute of Chemical Engineering

关键词: nanostructured materials;    nanofabrication;    heat treatment;    X-ray diffraction;    transmission electron microscopy;    field emission electron microscopy;    crystal morphology;    iron compounds;    hydrothermal method;    monodisperse nanocubes;    heating;    aqueous solution;    iron (III) nitrate;    organic reagents;    structural property;    morphological property;    X-ray diffraction;    transmission electron microscopy;    field-emission scanning electron microscopy;    crystal morphology;    size 85 nm;    temperature 200 degC;    time 5 h;    Fe2O3;   

DOI  :  10.1049/mnl.2014.0212

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

A commonly used postural corrective measure is to pull the shoulders back and down. This corrective measure is most likely based upon the idea that postural acromial protraction is a frequent tendency in neck and shoulder patients, as is excessive clavicular elevation during shoulder movement. However, this corrective measure is based upon logical fallacies, firstly because it will cause scapular depression and downward rotation, which has been associated with scapular dyskinesis (SD), shoulder impingement syndrome (SIS) and neck pain. Secondly, biomechanically it will set the patient in the Halstead’s costoclavicular compression (“military brace”) test position, which may result in plexopathy and thoracic outlet syndrome (TOS). The corrective measure thus opposes what it is intended to do, as it may exacerbate neck and shoulder problems rather than ameliorating them. Based on the anatomy and evidence, as well as personal clinical experience with 115 TOS patients, it is my impression that the cue in question is harmful and that its use should be discontinued. Conversely, the patient should be cued to raise his or her scapulae until the superior scapular angles are levelled with the T2 vertebra, and learn to stay there, as this will upwardly rotate the scapulae as well as decompress the costoclavicular space.

【 授权许可】

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