言语行为、文学书写与装置编程:城市漫步的三种模式

德·塞杜通过与言语行为的类比,指出漫步建构了城市的意义,反抗将城市视为静态、僵化的“文本”。这引出如何保存和传递漫步中形成的意义的问题。罗兰·巴特认为,文本、话语、语言等都可以用作城市的隐喻,而文学书写构成了让漫步的意义生产得以延续的路径,构成了理解漫步的第二种模式。然而,当代技术状况正使包括文学书写在内的各种书写失去作用,遑论与城市漫步建立联系。弗卢塞尔的《书写还有未来吗?》比较了面向装置的编程和面向他者的书写,将编程同样视为意义的赋予,从而为理解城市漫步提供了第三种模式。当前的城市漫步更多体现了“被编程”的状况,应恢复城市作为装置的“可编程性”,以寻求主动的“装置编程”。

Phytogenetic Studies on Intergeneric Hybridization Between Brassica napus and Matthiola incana

The intergeneric hybridization between Brassica napus L. cv. oro and Matthiola incana (L.) R. Br. was carried out to study the phytogenetic peculiarities of the hybrid plants. In order to improve the oil quality of rape seed, ovaries of B. napus pollinated with pollen of M. incana, were cut off and inoculated onto MS media supplemented with various plant hormones at the 7th day after pollination. Two mature embryos were obtained from 750 pollinated ovaries cultured in vitro. The percentage of seed set was 0.26%. The mature embryos were transferred onto the MS media supplemented with 2.0 mg/L 6-BA + 0.1 mg/L NAA, and a compound bud was produced later. The compound bud was then cut into a number of single buds, which were transferred onto fresh media. Twenty-two plantlets in vitro were developed from the above single buds. The hybrid plants (F-1) were basically intermediate between the two parents in many,characters with a few showing hybrid vigor. The fertility of hybrid plants (F-1) was poor. Cytological studies revealed that the hybrid plants (F-1) were mixoploid. in nature. The chromosome number of many somatic cells was 2n = 26, which was the sum of the chromosome number of the two parents. The chromosome number of other somatic cells was 2n = 38, similar to that of B. napus. The hybrid offspring (F-2) from the selfed hybrid plants (F-1) showed polymorphism. Among the hybrid offspring (F-2) some were nearly matroclinous and fertile, similar to B. napus. some others were intermediate between the two parents and less fertile, and a few were poorly developed and nearly infertile. From the hybrid offspring a few plants with improved seed-oil quality were obtained.

“日常叙事”审美与《紫罗兰》表述方式

《紫罗兰》"时尚叙事"审美和日常生活难以分割,现代性的理论和上海现代化进程为《紫罗兰》时尚叙事理念和日常生活哲学的并行创造了现实的社会环境和客观的生存条件。1925年到1930年代,上海主体文化最明显的特征是"现代性"在上海本土的多元、异质化的演绎。在"时尚叙事"的诸多手段中,报刊作为城市文化的物质形态(载体和媒介)之一,地位尤为重要。时尚期刊中的佼佼者《紫罗兰》杂志,通过其作品内容的适当安排和各类时尚信息的巧妙编辑,形式多样地表述和展示上海主体文化,从而凸显了这一特征。

Rapid and simultaneous determination of ten off-flavor compounds in water by headspace solid phase microextraction and gas chromatography-mass spectrometry

A simple and sensitive analytical procedure for the determination of multi-component compounds in water samples was developed and optimized using the headspace solid-phase microextraction(HSSPME) coupled with gas chromatography-mass spectrometry(GC-MS). Ten off-flavor compounds, including geosmin(GSM), 2-methylisoborneol(2-MIB), 2-isopropyl-3-methoxypyrazine(IPMP), 2-isobutyl-3-methoxypyrazine(IBMP), β-ionone, trans-2,cis-6-nonadienal(NDE), 2,3,4-trichloroanisole(2,3,4-TCA), 2,3,6-trichroloanisole(2,3,6-TCA), 2,4,6-trichloroanisole(2,4,6-TCA), and 2,4,6-tribromoanisole(2,4,6-TBA) were used as the target analytes. The optimization of extraction parameters including fibers types, extraction time, extraction temperature, stirring rate, sample volume, and ionic strength was carried out through the univariate approach. Ten off-flavor compounds were quantified within 50 min under the optimal conditions. Calibration curves with good linearity(r^2=0.990-0.998) were obtained in the range 1.0/2.0-100 ng/L, while the limits of detection for all compounds were lower than or close to the odor threshold concentration. Furthermore, the proposed method was applied to analyzing and determining the off-flavor compounds in real water samples from water-treatment plants.

Homogeneous and Heterogeneous Performances of Pyridinium Ionic Liquids in the Allylic Oxidation of Ionone-like Dienes

The combination of relatively low-cost ionic liquids, simple copper salt, and terminal oxidant tert-butyl hydroperoxide provided an efficient and environmentally friendly approach to the preparation of ionone-like dienones. Six pyridinium ionic liquids were evaluated in allylic oxidation of α-ionone and β-ionone. The 60%-70% yields of 3-oxo-α-ionone were obtained with 0.02 0.20 mmol of CuCl2·2H2O as catalyst, 3-5 mmol of tert-butyl hydroperoxide as oxidant and 1 g of [Bpy]PF6 as solvent for 4-20 h at 60℃. The facile recovery and recycle of catalyst were also achieved. More significantly, peculiar phase behaviors of [Bpy]PF6 and [Epy]PF6 offered the catalytic system advantages of homogeneous reaction and heterogeneous separation. Scanning electron microscope （SEM） images of [Bpy]PF6 provided evidences for the behaviors. Transmission electron microscope （TEM） micrographs showed copper salt nanoparticles catalyst formed and stabilized in pyridinium ionic liquids.

Quantitative analysis of trace levels of β-ionone in water by liquid-liquidphase extraction-gas chromatography-mass spectrometry(LLE-GC-MS)

A simple and rapid technique based on liquid-liquid extraction coupled to gas chromatography-mass spectrometric detection(LLE-GC-MS) was developed for analysis of taste and odour compound β-ionone in water. Instrument parameters including programmed oven temperature, injection temperature and ion source temperature were evaluated and optimized. Effects of extraction time, ionic strength and p H on the detection efficiency were investigated and optimum conditions were 8 min of extraction time, without Na Cl addition at p H=9. Good linearity(R2=0.9997) was obtained when the linear range was 10-500 μg/L. The recoveries of β-ionone in ultrapure water and tap water samples were 88%-95% and 110%-114%, respectively. The relative standard deviations(RSD) were less than 10%. The method detection limit(MDL) and rejection quality level(RQL) were achieved at1.98 μg/L and 6.53 μg/L, respectively. LLE-GC-MS was demonstrated to be a rapid and convenient method for the determination ofβ-ionone in water samples.

Preparation and Acid Catalytic Activity of TiO2 Grafted Silica MCM-41 with Sulfate Treatment

TiO2 grafted silica MCM-41 catalyst with and without sulfate treatment were prepared. The structural and acid properties of these materials were investigated by XRD, N2 adsorption-desorption, element analysis, thermal analysis, Raman and FTIR measurements. Their acid-catalytic activities were evaluated using the cyclization reaction of pseudoionone. It was found that the obtained materials possess well-ordered mesostructure, and the grafted TiO2 components were in highly dispersed amorphous form. T/MCM41 without sulfation contained only Lewis acid sites, while Brφnsted and Lewis acidities were remarkably improved for the sulfated materials ST/MCM41 and d-ST/MCM41. T/MCM-41 was not active for the cyclization reaction of pseudoionone, but ST/MCM-41 and d-ST/MCM-41 possessed favorable catalytic activities. The catalytic performance of ST/MCM-41 was comparable with that of the commercial solid acid catalyst of Amberlyst-15, and better than that of d-ST/MCM-41, although the latter underwent a second TiO2 grafting process and accordingly had higher Ti and S content. The specific surface structure of Si-O-Ti-O-S=O in ST/MCM-41 and the bilateral induction effect of Si and S=O on Si-O-Ti bonds were speculated to account for its higher acid catalytic activity.

Optimization of Extraction Technology of Pigments from Petals of Matthiola incana(L.)R.Br.of Different Colors

[ Objective] The paper aimed to study the optimum extraction technology of pigments from petals of Matthiola incana（ L. ） R. Br. of differ- ent colors. [Method] Petal pigments of Aida variety （white violet）, Francesco variety （ red violet） and Arabella variety （ purple violet） were ana- lyzed by colorimetric reaction method and ultraviolet-visible spectrum method, and the optimum extraction technology of flavonoid compounds from petals of them was determined by single factor experiment and orthogonal experiment. [ Result] The optimum extraction conditions of white violet were as follows： with 95% ethanol ＋ 5% HCI as solvent, solid-liquid ratio （ 1 ： 40）, extraction time （3 h）, extraction temperature （65 ℃ ）. The opti- mum extraction conditions of red violet and purple violet were as follows： with acetone as solvent, solid-liquid ratio （1：40）, extraction time （3 h）, extraction temperature （65 ℃）. [ Conclusion] The study provided theoretical foundation for further development and exploitation of pigments from M. incana（ L. ） R. Br.

The Formation of Russia-US-EU-China Multipolarity Relations under the Scenario of Ukraine Crisis in the Changing World

This paper is to analyze the changing formation of international security and economic system in the context of geopolitical expansion under the scenario of the Ukraine crisis. The author attempts to destruct the different interactions among Russia, EU, US, and China, founding that through the West economic sanctions the US are obstructing Russia＇s Eurasian policy and EU-Russian trade structures in many areas, especially in the energy sector. The US rebalancing policy might finish under the scenario of improved Russia-China relations because the US might improve their relations with China as well to implement their containment against Russia, whose geopolitical expansion toward Arctic Ocean, and with its developing the Russian Siberia, the Russian Far East Region as part of its global strategic deployment. Russia＇s global deployment is carried out through the integrated mechanism, such as, SCO, BRICS, and Eurasian Economic Union which will start to function in the January of 2015. China seems to be the biggest winner in this geopolitical struggle, because the new scenario of international events, such as Ukraine crisis and extremism of IS movement in Syria and Iraq have changed the target of NATO in the short-term period. The direction of intemational security is changing from the Cold War to anti-extremism-terrorism combat. Therefore, the new direction for Russia-US-EU-China reformulating their security relations will have the long-term influence on regional integration. Its seems to be that the information war and propaganda will be undergoing in the process of this geopolitical expansion gambling that can be seen in the new waves of the West economic sanctions against Russia and new threats from the international terrorism. In this paper, the author does not focus on the informational propaganda but tries to analyze the different characteristics of ambition and interactionamong Russia, EU, US, and China in the scenario of Ukraine crisis in the changing world.

Heritage of Arabic Language in South Caucasus： Arabic Inscriptions From Trialeti

In this article the author would like to discuss the usage of Arabic language in South Georgia as language of religious and ethnical minority in circumstances of Russian rule. The best examples of this are Arabic inscriptions on gravestones. In this article the author describes several inscriptions from Trialeri, South Georgia, which, because of unknown reasons, have never been studied by scientists before. Another important reason why the author has paid importance to those inscriptions is their recent condition and danger to lose them forever. The author has studied inscriptions from three main cemeteries： Beshtasheni, Tikma-Dash, and Minayasar. As a result of his research the author can say that Arabic language have been used by Muslims of Turk origins in Trialeti till Soviet time. They were using this language to preserve their identity, but it used to work only about a century. Soviet rule tried to destroy all identities and religions and especially after WWII they have reached more or less success. Today the Muslim population of Trialtei does not understand Arabic, they just know that their religion is Islam and in the graves with Arabic inscriptions lay their predecessors.