21,479 research outputs found
No Extravagance in Poems. A Linkage between Toegye's Poetic Aesthetics and Life Realm
Experiences in the heart is one matter and literary writing is another: Toegye (1501-1570, a famous Korean Confucianist), however, would rather regard the two as a completely unified process, which amalgamates an immanent quality and a literary style, without isolation between them. Toegye stressed and valued the purity of the first experience, i.e., the filtered and the purified in the heart, which would flow into the second experience and purify it as well, ultimately cultivating it into a complete aesthetic experience. Poetry should be solely triggered by positive emotions, being aesthetically clear and pure, with no extravagance inside. A plain and ordinary style of literary writing is thereby formed and is regarded as a natural access of transcendence to a philosophical, ethical, and aesthetic connotation which is pure, rich, and profound, 'shaping to Sagehood' in Confucianism. Emotion plays the role of a cementing force that unifies all these factors and sections for life aestheticization
Patient-specific virtual stent-graft deployment for Type B aortic dissection: a pilot study of the impact of stent-graft length
Thoracic endovascular aortic repair (TEVAR) has been accepted as a standard treatment option for complicated type B aortic dissection. Distal stent-graft induced new entry (SINE) is recognized as one of the main post-TEVAR complications, which can lead to fatal prognosis. Previous retrospective cohort studies suggested that short stent-graft (SG) length (<165 mm) might correlate with increased risk of distal SINE. However, the influence of SG length on changes in local biomechanical conditions before and after TEVAR is unknown. In this paper, we aim to address this issue using a virtual SG deployment simulation model developed for application in type B aortic dissection. Our model incorporates detailed SG design and hyperelastic behaviour of the aortic wall. By making use of patient-specific geometry reconstructed from pre-TEVAR computed tomography angiography (CTA) scan, our model can predict post-TEVAR SG configuration and wall stress. Virtual SG deployment simulations were performed on a patient who underwent TEVAR with a short SG (158 mm in length), mimicking the actual clinical procedure. Further simulations were carried out on the same patient geometry but with different SG lengths (183 mm and 208 mm) in order to evaluate the effect of SG length on changes in local stress in the treated aorta
6-Allyl-3-(6-chloro-3-pyridylmethyl)-6,7-dihydro-3H-1,2,3-triazolo[4,5-d]pyrimidin-7-imine
The title compound, C13H12ClN7, crystallizes with two independent molecules in the asymmetric unit, each with similar geometries. The dihedral angles between the triazole and pyrimidine rings are 0.45 (9) and 1.00 (10)° in the two molecules. A number of N—H⋯N hydrogen bonds co-operate with C–H⋯N contacts, forming a supramolecular array in the ab plane. C—H⋯π interactions are also present. One of the vinyl groups was found to be disordered so that the C(H)=CH2 atoms were resolved over two positions with the major component having a site occupancy factor of 0.539 (4)
2-Bromo-4-chloro-6-(cyclohexyliminomethyl)phenol
The title compound, C13H15BrClNO, was prepared by the condensation of equimolar quantities of 3-bromo-5-chlorosalicylaldehyde with cyclohexylamine in methanol. There is an intramolecular O—H⋯N hydrogen bond in the molecule. The cyclohexyl ring adopts a chair conformation
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