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当今日本新闻业的实用主义 总被引：1，自引：0，他引：1
当今日本的新闻业看上去充满了民主之风,实际上却出现了一些问题,原因在于日本政府的政策和媒体自身。文章分析了日本新闻业和政治的相互关系,揭示了日本新闻业实用主义风潮的本质,对新闻业唯政治马首是瞻的情况进行了批评并分析了问题产生的原因和目前的解决措施。 相似文献
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Leble V Lima R Dias R Fernandes C Ishikawa T Imai Y Yamaguchi T 《Biomicrofluidics》2011,5(4):44120-4412015
In microcirculation, red blood cells (RBCs) flowing through bifurcations may deform considerably due to combination of different phenomena that happen at the micro-scale level, such as: attraction effect, high shear, and extensional stress, all of which may influence the rheological properties and flow behavior of blood. Thus, it is important to investigate in detail the behavior of blood flow occurring at both bifurcations and confluences. In the present paper, by using a micro-PTV system, we investigated the variations of velocity profiles of two working fluids flowing through diverging and converging bifurcations, human red blood cells suspended in dextran 40 with about 14% of hematocrit level (14 Hct) and pure water seeded with fluorescent trace particles. All the measurements were performed in the center plane of rectangular microchannels using a constant flow rate of about 3.0 × 10−12 m3/s. Moreover, the experimental data was compared with numerical results obtained for Newtonian incompressible fluid. The behavior of RBCs was asymmetric at the divergent and convergent side of the geometry, whereas the velocities of tracer particles suspended in pure water were symmetric and well described by numerical simulation. The formation of a red cell-depleted zone immediately downstream of the apex of the converging bifurcation was observed and its effect on velocity profiles of RBCs flow has been investigated. Conversely, a cell-depleted region was not formed around the apex of the diverging bifurcation and as a result the adhesion of RBCs to the wall surface was enhanced in this region. 相似文献
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This study examined the effects of social support, job autonomy, and job satisfaction on burnout among long-term care workers in Hawaii, USA. Data were collected from 170 care workers working at long-term care facilities in Hawaii. The study variables included demographic data, burnout, social support, job autonomy, and job satisfaction. The study findings support the association between social support, job autonomy, job satisfaction, and burnout among care workers at long-term care facilities. Social support, job autonomy, and job satisfaction were negatively and significantly associated with the level of burnout of care workers in Hawaii. Furthermore, the findings suggest the need to develop policy and practice considerations for reducing burnout risks among care workers in order to improve quality of care. 相似文献
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Factors such as errors during the fabrication or construction of structural components and errors of calculation assumption or calculation methods, are very likely to cause serious deviation of many strings＇ actual prestressing forces from the designed values during tension structure construction or service period, and further to threaten the safety and reliability of the structure. Aiming at relatively large errors of the prestressing force of strings in a tension structure construction or service period, this paper proposes a new finite element method （FEM）, the ＂tensile force correction calculation method＂. Based on the measured prestressing forces of the strings, this new method applies the structure from the zero prestressing force status approach to the measured prestressing force status for the first phase, and from the measured prestressing force status approach to the designed prestressing force status for the second phase. The construction tensile force correction value for each string can be obtained by multi-iteration with FEM. Using the results of calculation, the strings＇ tensile force correction by group and in batch will be methodic, simple and accurate. This new calculation method can be applied to the prestressed correction construction simulation analysis for tension structures. 相似文献
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Hongyang Huang Jinying Zhang Yifan Zhang Chengcheng Fu Jialiang Huang Yonghong Cheng Chunming Niu Xinluo Zhao Hisanori Shinohara 《国家科学评论(英文版)》2019,6(4):767
Many different phase structures have been discovered for silver iodides. The β and γ phases were found to be the most common ones at ambient conditions, while the rock-salt phase was found to be stable under pressures between 400 MPa and 11.3 GPa. Recently, the α phase was demonstrated to be stable under ambient conditions when the particle sizes were reduced to below 10 nm. However, no other phase has been reported to be stable for silver iodides under ambient conditions. Rock-salt and helix structures have been found to be stable under ambient conditions in this study. The structures have been characterized by elemental mapping, Raman scattering, and high-resolution transmission electron microscopy. The stabilities of these structures were also confirmed by molecular dynamics and density functional theory. 相似文献
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Sekiya Koike Seigo Nakaya Hiroto Mori Tatsuya Ishikawa Alexander P. Willmott 《Journal of sports sciences》2019,37(9):968-979
The objective of this study was to develop and evaluate a methodology for quantifying the contributions of modelling error terms, as well as individual joint torque, gravitational force and motion-dependent terms, to the generation of ground reaction force (GRF), whose true value can be measured with high accuracy using a force platform. Dynamic contributions to the GRF were derived from the combination of (1) the equations of motion for the individual segments, (2) the equations for constraint conditions arising from the connection of adjacent segments at joints, and (3) the equations for anatomical constraint axes at certain joints. The contribution of the error term was divided into four components caused by fluctuation of segment lengths, geometric variation in the constraint joint axes, and residual joint force and moment errors. The proposed methodology was applied to the running motion of thirteen rear-foot strikers at a constant speed of 3.3?m/s. Modelling errors arose primarily from fluctuations in support leg segment lengths and rapid movement of the virtual joint between the foot and ground during the first 20% of stance phase. The magnitudes of these error contributions to the vertical and anterior/posterior components of the GRF are presented alongside the non-error contributions, of which the joint torque term was the largest. 相似文献
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