To test the hypothesis that cataract extraction in glaucomatous eyes improves overall sensitivity of visual function without affecting the size or depth of gl aucomatous scotomas. Experimental study with no control gr...To test the hypothesis that cataract extraction in glaucomatous eyes improves overall sensitivity of visual function without affecting the size or depth of gl aucomatous scotomas. Experimental study with no control group. One hundred fifty -eight eyes (of 140 patients) from the Advanced Glaucoma Intervention Study wit h at least two reliable visual fields within a year both before and after catara ct surgery were included. Average mean deviation (MD), pattern standard deviatio n (PSD), and corrected pattern standard deviation (CPSD) were compared before an d after cataract extraction. To evaluate changes in scotoma size, the number of abnormal points (P < . 05) on the pattern deviation plot was compared before and after surgery. We described an index (“scotoma depth index”) to investigate c hanges of scotoma depth after surgery. Mean values for MD, PSD, and CPSD were-1 3.2, 6.4, and 5.9 dB before and-11.9, 6.8, and 6.2 dB after cataract surgery (P ≤. 001 for all comparisons). Mean (±SD) number of abnormal points on pattern deviation plot was 26.7±9.4 and 27.5±9.0 before and after cataract surgery, re spectively (P=. 02). Scotoma depth index did not change after cataract extractio n (-19.3 vs-19.2 dB, P=. 90). Cataract extraction caused generalized improveme nt of the visual field, which was most marked in eyes with less advanced glaucom atous damage. Although the enlargement of scotomas was statistically significant , it was not clinically meaningful. No improvement of sensitivity was observed i n the deepest part of the scotomas.展开更多
快速发展的通用人工智能技术有助于赋能信息传播空间的快速发展,同时也重塑了网络空间信息传播的生态与机制。在通用人工智能时代,网络谣言的传播扩散特征均发生了质性改变,其在各类社交平台的生产数量以及传播扩散速度不仅呈几何倍数增...快速发展的通用人工智能技术有助于赋能信息传播空间的快速发展,同时也重塑了网络空间信息传播的生态与机制。在通用人工智能时代,网络谣言的传播扩散特征均发生了质性改变,其在各类社交平台的生产数量以及传播扩散速度不仅呈几何倍数增长,且更“类似现实”的高仿真性使普通网民几乎难以分辨真伪,对虚拟空间以及现实空间的秩序与治理均提出了前所未有的挑战。随着现代计算技术的飞速发展,网络谣言日益表现为甄别难度大、社会破坏性强、传播速度飞速、内容更能直击受众思想等特征。为此,本文研究了通用人工智能下网络谣言传播的新特征、新挑战以及公安机关的应对策略,对AGI(通用人工智能,Artifical General Intelligence的英文缩写)时代下公安机关科学应对网络谣言与危机治理具有重要的现实意义。展开更多
文摘To test the hypothesis that cataract extraction in glaucomatous eyes improves overall sensitivity of visual function without affecting the size or depth of gl aucomatous scotomas. Experimental study with no control group. One hundred fifty -eight eyes (of 140 patients) from the Advanced Glaucoma Intervention Study wit h at least two reliable visual fields within a year both before and after catara ct surgery were included. Average mean deviation (MD), pattern standard deviatio n (PSD), and corrected pattern standard deviation (CPSD) were compared before an d after cataract extraction. To evaluate changes in scotoma size, the number of abnormal points (P < . 05) on the pattern deviation plot was compared before and after surgery. We described an index (“scotoma depth index”) to investigate c hanges of scotoma depth after surgery. Mean values for MD, PSD, and CPSD were-1 3.2, 6.4, and 5.9 dB before and-11.9, 6.8, and 6.2 dB after cataract surgery (P ≤. 001 for all comparisons). Mean (±SD) number of abnormal points on pattern deviation plot was 26.7±9.4 and 27.5±9.0 before and after cataract surgery, re spectively (P=. 02). Scotoma depth index did not change after cataract extractio n (-19.3 vs-19.2 dB, P=. 90). Cataract extraction caused generalized improveme nt of the visual field, which was most marked in eyes with less advanced glaucom atous damage. Although the enlargement of scotomas was statistically significant , it was not clinically meaningful. No improvement of sensitivity was observed i n the deepest part of the scotomas.
文摘快速发展的通用人工智能技术有助于赋能信息传播空间的快速发展,同时也重塑了网络空间信息传播的生态与机制。在通用人工智能时代,网络谣言的传播扩散特征均发生了质性改变,其在各类社交平台的生产数量以及传播扩散速度不仅呈几何倍数增长,且更“类似现实”的高仿真性使普通网民几乎难以分辨真伪,对虚拟空间以及现实空间的秩序与治理均提出了前所未有的挑战。随着现代计算技术的飞速发展,网络谣言日益表现为甄别难度大、社会破坏性强、传播速度飞速、内容更能直击受众思想等特征。为此,本文研究了通用人工智能下网络谣言传播的新特征、新挑战以及公安机关的应对策略,对AGI(通用人工智能,Artifical General Intelligence的英文缩写)时代下公安机关科学应对网络谣言与危机治理具有重要的现实意义。
