“赋能论”还是“抑制论”:数字经济与共同富裕辩证关系的理论审视

数字经济对共同富裕究竟是促进作用还是抑制作用,这并非一个不证自明的命题。就“赋能论”而言,其理论前提是马克思意义上的劳动生产率的提高,进而数字经济能够对生产、分配、流通、消费等经济循环环节产生积极影响,有效解决制约共同富裕实现的发展不平衡不充分问题;就“抑制论”而言,主要表现在三个方面:一是平台垄断在生产组织过程中衍生出了“困在系统里的骑手”,二是数字鸿沟在数字技术红利分享方面产生了“信息贫困者”,三是“去劳动关系化”与“过早去工业化”内嵌于数字经济发展悖论,其本质是资本无序扩张驱动数字技术反噬并由此带来财富分配的进一步失衡。因此,应当在正视“抑制论”的基础上进一步强化“赋能论”的有效作用,从而形成“所有制—资本—经济循环”的系统视域,即坚持生产关系对分配关系的基础性和决定性作用,既要激活资本的文明面又要防范资本无序扩张,以“数实融合”服务于加快构建新发展格局,从而推动数字经济时代共同富裕的实现。

“颠覆”与“抑制”——新历史主义视野中的《弗洛斯河上的磨坊》

“颠覆”和“抑制”是新历史主义文学批评中的两个相对的关键词。本文从新历史主义的视角重新解读乔治·艾略特的长篇小说《弗洛斯河上的磨坊》。“颠覆”本是指对代表统治秩序的社会意识形态的颠覆．而“抑制”则是对这种颠覆力量的抑制。在小说《弗洛斯河上的磨坊》中，作者通过对麦琪叛逆性格和行为的详尽描写．展现了她对维多利亚时期英国社会的宗教、阶级压迫、男权社会等社会问题的一种颠覆力量：同时艾略特过度强调义务、良心、职责。又带来了主人公的自我抑制。“颠覆”与“抑制”两种社会功能相互制约并相互促讲其同引导了历史的发展。

信息化、进口“抑制”与内需推动

当前中国经济结构还存在一些内生需求失衡的现象,盲目推动内需增扩,可能会导致进口增长“抑制”国内生产供给,不利于经济的良性增长。以信息化、进口贸易和经济内生增长三者间的理论关系为研究视角,探讨信息化对经济外部依赖及内需推动的效应机制,并实证检验了其效应。结果表明:信息化对促进国内供需匹配、提升生产供给能力进而减轻进口产品依赖产生了积极效应,但是信息企业的研发活动却没有呈现出应有效果;克服内生性偏误后,相关结论仍然稳健。进一步研究发现:中国信息技术的创新增长体现出较明显的外部依赖性,当前信息化水准及研发的“底子”还不足以充分支撑经济内生增长的创新需求。中国信息技术发展需坚持打破各种遏制外联创新的“樊笼”,既要避免进口产生的“降维”打压,又要强化信息技术研发与提升国际竞争能力的关联性,积极拓展生存发展的外部空间。

Role of Tissue Factor Pathway Inhibitor-2 in Ovarian Tumor Migration and Invasion

Objective: To elucidate the relation between human tissue factor pathwayinhibitor-2 (TFPI-2) expression and ovarian tumor migration and invasion. Methods: Human TFPI-2expression vector pBos-Cite-neo/TFPI-2 was transfected into ovarian tumor cells line A2780- Afterthe transfected cells were selected by G418, transfected and nontransfected cells were screened forTFPI-2 mRNA and protein by reverse transcription-polymerase chain reaction and Western blotanalysis, respectively. The number of transfected or nontransfected cells passing through membraneof Boyden chamber was counted as the basis assessing tumor cells migratory and invasive behaviors.Results: Expression of mRNA and protein of TFPI-2 was detectable in transfected cells. In invasionassay, the number of TFPI-2-expressing cells to traverse a Matrigel-coated membrane was obviouslydecreased compared with that of nonexpressing cells (59.3±6.5 vs 109.7±5.5, P 【 0.01); While inmigration assay, no significant difference through a noncoated membrane was observed amongtransfected and nontransfected cells (114.7±8.6 vs 127.3±7.1, P 】 0.05). Conclusion: Expression ofTFPI-2 may strongly inhibit the invasive ability of ovarian tumor cells in vitro, but has no effecton the migratory ability which provides an experimental basis for genotherapy of human ovariantumor.

Dynamical Suppression of Decoherence in Two-Qubit Quantum Memory

In this paper, we have detailedly studied the dynamical suppression of the phase damping for the two-qubit quantum memory of Ising model by the quantum "bang-bang" technique. We find the sequence of periodic radiofrequency pulses repetitively to flip the state of the two-qubit system and quantitatively find that these pulses can be used to effectively suppress the phase damping decoherence of the quantum memory and freeze the system state into its initial state. The general sequence of periodic radio-frequency pulses to suppress the phase damping of multi-qubit of Ising model is also given.

Theoretical Investigation on QSAR of(2-Methyl-3-biphenylyl)methanol Analogs as PD-L1 Inhibitor

Cancer is one of the most serious issues in human life.Blocking programmed cell death protein 1 and programmed death ligand-1(PD-L1)pathway is one of the great innovations in the last few years,a few numbers of inhibitors can be able to block it.(2-Methyl-3-biphenylyl)methanol derivative is one of them.Here,the quantitative structure-activity relationship(QSAR)established twenty(2-methyl-3-biphenylyl)methanol derivatives as the programmed death ligand-1 inhibitors.Density functional theory at the B3LPY/6-31+G(d,p)level was employed to study the chemical structure and properties of the chosen compounds.Highest occupied molecular orbital energy EHOMO,lowest unoccupied molecular orbital energy ELUMO,total energy ET,dipole moment DM,absolute hardnessη,absolute electronegativityχ,softness S,electrophilicityω,energy gap?E,etc.,were observed and determined.Principal component analysis(PCA),multiple linear regression(MLR)and multiple nonlinear regression(MNLR)analysis were carried out to establish the QSAR.The proposed quantitative models and interpreted outcomes of the compounds were based on statistical analysis.Statistical results of MLR and MNLR exhibited the coefficient R^2 was 0.661 and 0.758,respectively.Leave-one-out cross-validation,r_m^2 metric,r_m^2 test,and"Golbraikh&Tropsha’s criteria"analyses were applied for the validation of MLR and MNLR,which indicate two models are statistically significant and well stable with data variation in the external validation towards PD-L1.The obtained results showed that the MNLR model predicts the bioactivity more accurately than MLR,and it may be helpful and supporting for evaluation of the biological activity of PD-L1 inhibitors.

城乡收入差距对农村居民消费的影响:“抑制效应”还是“示范效应”

收入差距对居民消费存在“抑制效应”和“示范效应”,但是现有研究并未检验双重效应是否有理论逻辑自洽性,中国城乡二元结构为检验理论逻辑自洽性提供了良好的经验证据。研究发现:一是城乡收入差距降低农村居民消费,考虑内生性问题和稳健性检验后,结果不变;二是城乡收入差距对农村居民消费同时存在“抑制效应”和“示范效应”,且前者大于后者,从而验证了双重效应具有理论逻辑自洽性;三是双重效应的影响存在区域异质性。基于研究结论,本文提出两方面重要政策含义:一是基于提高农村居民消费目标的政策指向是设计并推进有利于缩小城乡收入差距的政策安排;二是中、西部地区除了要降低城乡收入差距外,还要进一步发挥“示范效应”的作用。

《了不起盖茨比》中黛西的“颠覆”与“抑制”

弗·司各特·菲茨杰拉德的作品《了不起的盖茨比》被认为是美国"爵士时代"的写真,其中女性角色黛西长久以来备受争议,本文将从新历史主义中"颠覆"与"抑制"的角度出发分析黛西这一女性形象,从而把握在新历史的格局下属于黛西的心理轨迹。

Simulation methodology development for rotating blade containment analysis

An experimental and numerical investigation on the aeroengine blade/case containment analysis is presented. Blade out containment capability analysis is an essential step in the new aeroengine design, but containment tests are time-consuming and incur significant costs; thus, developing a short-period and low-cost numerical method is warranted. Using explicit nonlinear dynamic finite element analysis software, the present study numerically investigated the high-speed impact process for simulated blade containment tests which were carried out on high-speed spin testing facility. A number of simulations were conducted using finite element models with different mesh sizes and different values of both the contact penalty factor and the friction coefficient. Detailed comparisons between the experimental and numerical results reveal that the mesh size and the friction coefficient have a considerable impact on the results produced. It is shown that a finer mesh will predict lower containment capability of the case, which is closer to the test data. A larger value of the friction coefficient also predicts lower containment capability. However, the contact penalty factor has little effect on the simulation results if it is large enough to avoid false penetration.