“秀”:技术“中介化”与人际传播中的“自我”分析

与传统中国人在人际交往中不崇尚炫耀暴露相比,"秀"的兴起是互联网蓬勃发展中一个引人注目的文化现象。作为一种理想化的自我表演,"秀"受到媒介技术"中介化"的深刻影响。文章指出,新型人际关系的出现以及自我呈现技巧的提高,使传统中国人在固定交往关系中被压抑的"自我"得到释放,不过,技术"中介化"也可能令"自我"陷入因交往关系复杂化和浅层化所带来的认同困境之中。

线上“中介化书写”与记忆实践:“云游敦煌”的媒介记忆建构

既有关于媒介记忆的研究注重探究媒介如何形塑集体记忆,但较少关注媒介给受众带来的记忆实践,本文通过对“云游敦煌”小程序的考察,讨论了其作为记忆建构者和记忆内容承载者的双重角色对记忆的建构过程。研究发现,作为记忆建构者的“云游敦煌”小程序主要通过各类时间符号的“复刻”以及多维阐释壁画内涵的叙事路径来书写“中介化记忆”。作为记忆内容承载者的“云游敦煌”小程序通过一系列看似个体化的互动项目,给受众提供了充满家国话语、自我意识的记忆实践,并由此成为唤起受众关于敦煌特定文化记忆的“记忆之所”。

Electrochemistry of ABTS at Glassy Carbon Electrodes

The electrochemical and the mass transport behavior of ABTS2-/ABTS＇- （2,2＇-azinobis（3- ethylbenzothiazoline-6-sulfonate）） redox couple at glassy carbon electrode （GCE） in phos- phate buffer solution （PBS, pH=4.4） is studied in detail by cyclic voltammetry combined with rotating disk electrode system. From the i-E curves recorded at different electrode rotating rate, rate constant, and transfer coefficient for ABTS 2-←→ABTS^-＋e reaction at GCE electrode and the diffusion coefficient of ABTS2- in PBS are estimated to be 4.6× 10^-3 cm/s, 0.28, and 4.4× 10^-6 cm^2/s, respectively. The transfer coefficient with a value of ca. 0.28 differs largely from the value of 0.5 that is always assumed in the literature. The origins for the difference of the rate constant determined and the challenges for estimating the stan- dard rate constant are discussed. The performance for such ABTS2- mediated bio-cathode toward oxygen reduction reaction is discussed according to the over-potential drop as well as current output limit associated with the charge transfer kinetics of ABTS2- ←→ABTS-＋e redox reaction and/or the mass transport effect.

A general review of studies on fossilization of interlanguage in SLA

This paper reviews the articles with ＂fossilization of interlanguage＂ as key words in CNKI, and classifies and analyzes them from six aspects： fossilization and FL teaching; concept, origin and avoidance of fossilization; L1 transfer on fossilization; fossilization and linguistic output; Discourse markers and fossilization; the fossilization of interlanguage from psychology or cognition. It is intended to probe fossilization and its enlightenment and reference to SLA.

Effects of Warm Needling at Zusanli(ST 36)on NO and IL-2 Levels in the Middle-Aged and Old People

42 middle-aged and old people at the age between 55-70 years were selected and given the warm needling at Zusanli (ST 36), and their IL-2 and NO contents of peripheral blood before and after acupuncture were determined. The results showed that IL-2 and NO contents increased significantly after the warm needling (P<0.01).

Interlanguage Fossilization in Chinese EFL Writing --An Empirical Research of 20 English Major Students

This research is designed to investigate interlanguage fossilization in Chinese college students＇ written output. Twelve common linguistic errors from 20 Chinese EFL （English as a foreign language） learners＇ writing assignments are observed. Results show that among 12 typical errors, five types of errors are declining while the rest are increasing, indicating a tendency towards fossilization. Analysis shows that negative/corrective feedback has played a key role in reducing fossilization of some errors, but it does not work in every case. Some errors tend to be fossilized for several reasons. First, language items that do not have a direct form-function relationship are likely to be fossilized. Second, advanced learners create their own language system and neglect the basic rules of grammar. Third, task difficulty takes learners＇ attention away from form to meaning. Fourth, ingrained thinking patterns have a great impact on how learners organize their thoughts in writing. It is true that many Chinese EFL advanced learners reach a plateau in the process of acquiring English. However, attention, consciousness, and training of self-monitoring ability will help destabilize their interlanguage system.

Creating a Low-Anxiety Classroom by Mediational Artefacts： A Comparison Through Materialization and Verbalization

One of the challenges in foreign language teaching, specifically teaching listening skill, is to create a low-anxiety classroom environment, since many learners believe listening induces anxiety. This study compares learners＇ anxiety in two different classrooms in which learners were instructed by two forms of artifacts： materializing and verbalizing. The Foreign Language Listening Anxiety Scale （FLLAS） scores before and after a 13-week experimental treatment course were used to compare learners＇ anxiety before and after receiving intervention by two means. In this study, the lower score of anxiety was for the group which did verbalization practice in the class; however, both groups showed the same performance on listening test.

Study of hepatic arterial infusion of Endostar combined with TACE on advanced hepatocellular carcinoma

Objective:To study the efficacy and safety of hepatic arterial infusion of Endostatin(YH-16,Endostar),combined with transcatheter arterial chemoembolization(TACE) on advanced hepatocellular carcinoma.Methods:Thirty patients with advanced hepatocellular carcinoma were enrolled in the study.The patients received hepatic arterial infusion of Endostar combined with TACE.The efficacy was evaluated strictly after 1-2 cycles according to RECIST criteria and the value of AFP;quality of life(QOL) was evaluated according to Karnofsky scores.Adverse effects were evaluated too.Results:29 cases' efficacy was evaluated among the total 30 cases.The KPS were significantly increased after the treatment(80.39 ± 8.37 vs 73.93 ± 9.22,P = 0.002).Compared with control group,the objective response rate(CR and PR) and the rate of AFP negative changed were significantly higher(P = 0.021,P = 0.046).The adverse effects were not obvious.Conclusion:The QOL and preliminary efficiency of patients of advanced hepatocellular carcinoma may be improved by hepatic arterial infusion of Endostar combined with TACE,the rate of AFP negative changed were significantly higher too,and there are little of adverse effects.It is worthy to clinical generalization and further clinical observation.

New species of the diaspidid genus Lepidosaphes （Hemiptera： diaspididae） on cypress from Tibet of China

Cypress plays an important role in urban afforestation in Tibet of China, and scale insects are a serious pest group that attack Cypress. In this paper, a new species, Lepidosaphes xizangensis Feng, sp. n. from Tibet, is described. Its damages to cypress trees are recorded. The new species is similar to Lepidosaphes pineti Borchsenius, 1958, with its perivulvar disc pores arranging in eight groups, but can be distinguished from the latter by the following characteristics： （1） gland spines between median lobes longer than median lobes; （2） distance between median lobes similar than width of median lobes; （3） dorsal gland ducts are much more slender. It enriches the diversity of Lepidosaphes fauna of China and adds new information of coccids＇ damages to cypress.

Study on Oxidative Desulfurization Performance of Mesoporous Alumina Material

This article refers to the study on the performance of mesoporous silica used as the catalyst for oxidative desulfurization reactions. The test results revealed that under mild reaction conditions using tert-butyl hydroperoxide as the oxidizing agent the content of dibenzothiophene(DBT) contained in oil samples could be reduced from 5000 ppm to less than 5 ppm. Furthermore,the mesoporous silica material can be easily regenerated and recycled.

Construction of Network Legal Supervision Mode With Chinese Characteristics

Localizing network legal supervision based on national conditions, legal traditions and the needs of economic and political development is the basis to manage and administrate the network by law. Adjusted to media convergence and the needs of network cultural industry development, China has made the lawmaking of media transform from practical service oriented management to functional oriented management of media. This strategy aims to prevent network medium risk effectively according to network communication regularity.

Dielectric Properties of Colossal Permittivity Materials： An Update

During the last 10 years, a lot of interests have been devoted to the so-called CDC （colossal dielectric constant） materials. The first materials exhibiting this behavior were the perovskite-based ceramics on the CCTO （CaCuaTi4012） composition. Relative dielectric permittivity can attain values up to （or even larger than） 105. Nevertheless, their dielectric losses are too high, the lower values ranging 10%, in a narrow frequency range, thus limiting their applications. The underlying physical mechanisms at the origin of the CDC are still under study. The analysis of broadband impedance spectroscopy measurements leads most of the authors to propose an interracial polarization mechanism （at the electrodes or at internal barriers）, there is a limited number of complementary electrical characterization techniques, which, up to now, comfort the proposed interracial polarization mechanisms. In the present work, I-V and time-domain polarization are used to characterize these materials. One of the main results is the observation of a non-symmetrical response of these materials related to the direction of the polarization. These results are observed for both macroscopic level on bulk polycrystalline material and within individual grains of the same samples. These results do not fit current accepted models for polarization for CDC materials.

PREVENTION IS MORE SIGNIFICANT THAN DE-FOSSILIZATION — ON POSSIBLE CAUSES FOR FOSSILIZED ERRORS IN THE INDIVIDUAL INTERLANGUAGE AND RELEVANCE FOR EFL EDUCATION IN CHINA

After introducing the serious linguistic phenomenon of fossilization, clarifying terms and providing recommendations, the author makes an attempt to expound the various potential causes for fossilized errors from the biological, social-affective, cultural, cognitive, pedagogical and environmental perspectives and, in addition, suggests the relevance for EFL education in China and some ways of preventing the occurrence of fossilized errors. The paper is concerned with questions of etiology, rather than questions of ontology, so the focus of the paper is on the causal factors for fossilized errors in the interlanguage, including learner-specific factors and non learner-specific factors, such as biological, affective, language transfer, pedagogical, social and ideological culture, and environmental factors. It is proposed that prevention of fossilization is more significant than de-fossilization.

Virtual network embedding based on real-time topological attributes

As a great challenge of network virtualization, virtual network embedding/mapping is increasingly important. It aims to successfully and efficiently assign the nodes and links of a virtual network （VN） onto a shared substrate network. The problem has been proved to be NP-hard and some heuristic algorithms have been proposed. However, most of the algorithms use only the local information of a node, such as CPU capacity and bandwidth, to determine how to map a VN, without considering the top- ological attributes which may pose significant impact on the performance of the embedding. In this paper, a new embedding algorithm is proposed based on real-time topological attributes. The concept ofbetweenness centrality in graph theory is borrowed to sort the nodes of VNs, and the nodes of the substrate network are sorted according to the correlation properties between the former selected and unselected nodes. In this way, node mapping and link mapping can be well coupled. A simulator is built to evaluate the performance of the proposed virtual network embedding （VNE） algorithm. The results show that the new algorithm significantly increases the revenue/cost （R/C） ratio and acceptance ratio as well as reduces the runtime.

Fe modified mesoporous hollow carbon spheres for selective oxidation of ethylbenzene

Fe modified hollow carbon spheres with large cavity and mesoporous shell （Fe-MHCs） were successfully synthesized by a simple pyrolysis and simultaneous deposition method. The organic molecules gases （carbon species） from pyrolysis of polystyrene deposited in the hard template at the catalysis of Fe species existing in the sample during calcination at high temperature. The obtained Fe-MHCs showed uniform spherical morphology with large surface area （924 m^2 g^-1）, mesoporous structure and a certain amount of Fe loaded. The Fe species and the special structure endowed the materials excellent catalytic activity in the oxidation of ethylbenzene to acetophenone. The conversion of 94.5% and the high selectivity to targeted product （97.4%） could be achieved and the acceptable recycling stability was also exhibited.

Product yields of stabilized Criegee intermediates in the ozonolysis reactions of cis-2-butene, 2-methyl-2-butene, cyclopentene, and cyclohexene

Cavity ring-down spectroscopy(CRDS)was utilized in combination with chemical titration with sulfur dioxide(SO_2)to quantify stabilized Criegee intermediates(s CIs)produced at low pressures(4–20 Torr)in ozonolysis reactions of cis-2-butene,2-methyl-2-butene,cyclopentene,and cyclohexene.The yield of stabilized s CI,acetaldehyde oxide(CH_3CHOO),from cis-2-butene ozonolysis decreased with decreasing pressure and reached to 0.05±0.04 at the zero-pressure limit.The nonsymmetric alkene 2-methyl-2-butene produced two stabilized s CIs,CH_3CHOO and acetone oxide((CH_3)_2COO),and their total yield decreased with decreasing pressure and reached 0.01±0.03 at the zero-pressure limit.For cyclopentene and cyclohexene,the s CI yields were essentially constant near zero,as expected of endocyclic alkenes.The nascent yields of s CI of various alkenes are compared.