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A new cryptand/paraquat [2]pseudorotaxane

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Science China Chemistry 2010年第4期53卷 858-862页

作者： ZAKHAROV l.v N. Sl.BODNICK Carl. rheingold arnold l. GIBSON Harry W. Department of Chemistry and Biochemistry University of California Department of Chemistry Virginia Polytechnic Institute and State University

A new cryptand/paraquat [2]pseudorotaxane and its crown ether anal.g were synthesized and characterized by proton NMR, mass spectrometry, and singl. crystal.X-ray anal.sis. The Job pl.ts based on proton NMR data demonstrated that both the compl.x between cryptand 1 and paraquat derivative 2a and the compl.x between bis(p-phenyl.ne)-34-crown-10 (3) and paraquat derivative 2b have 1:1 stoichiometry in sol.tion. The apparent association constants (Ka,exp) of 1·2a and 3·2b cal.ul.ted for 1:1 compl.xes were 1.4 (±0.2) × 104 and 4.7 (± 0.5) × 102 M-1, respectivel.. X-ray anal.sis showed that 1·2a is stabil.zed by ten hydrogen bonds and face-to-face π-stacking interactions in the sol.d state, whil. 3·2b is stabil.zed by four hydrogen bonds and face-to-face π-stacking interactions. As wel. as in the X-ray structure of 1·2c, a water mol.cul. acts as a hydrogen bridge between the β-pyridinium protons of 2a and the ether oxygen atoms of 1 in 1·2a. The successful.preparation of 1·2a demonstrated that the tert-butyl.group is not big enough to be a stopper for rotaxanes based on 1.

关键词： host-guest system sel.-assembl. pseudorotaxane cryptand paraquat

Biol.gical.psychol.gy an introduction to behavioral. cognitive, and cl.nical.neuroscience Mark R. Rosenzweig, arnold l. l.iman, S. Marc Breedl.ve. 2nd ed.

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Cartographic Study and Model.ng of the Bakwanga Kimberl.te Massive 5 at Kasai Oriental.in the Democratic Republ.c of Congo

1999年

作者： Mark R. Rosenzweig arnold l. l.iman S. Marc Breedl.ve.

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Journal.of Geoscience and Environment Protection 2024年第4期12卷 78-95页

作者： arnold Onya Ngil. Ivon Ndal. Tshiwisa Ruben Koy Kasongo Al.in Cibumba Cibumba Chamira Fwani Pambu Dona Kampata Mbwel.l. Centre National.de Té l&#233d&#233tection (CNT) Kinshasa Democratic Republic of Congo Geosciences Department Faculty of Sciences and Technologies University of Kinshasa Kinshasa Democratic Republic of Congo Geo-Hydro-Energy Research Group Geosciences Department Faculty of Sciences and Technologies University of Kinshasa Kinshasa Democratic Republic of Congo

Bakwanga kimberl.te massive 5 in Kasai Oriental.is part of a set of 13 kimberl.te massives numbered according to the order in which they were discovered. They are l.cated on an al.gnment with a more or l.ss W-E direction making up the Northern group known as Bakwanga. The importance of the Bakwanga kimberl.te massives on the country’s economy in the production of diamonds sufficientl. proves the interest of geol.gical.research work in this area. The objective of this work is to determine a mathematical.model.of the shape of the massive as cl.se as possibl. to real.ty and through cartography. The cartographic study and model.ng of this kimberl.te massive were carried out using data from core sampl.s taken on l.ngitudinal.and transverse profil.s of the 50 × 50 meter mesh dril.ing pl.n intersecting this kimberl.te massive. We intend to deduce the structure and l.thostratigraphy of the kim-berl.tic facies and the direct environment of massive 5. As a resul., we note that the majority of surveys on the extent of this massive have intersected: Red cl.yey sand - Pol.morphic sandstone - Nodul.r sandstone, with kaol.n bl.cks and nodul.s - Epicl.stic Kimberl.te - Xenokimberl.te - Massive Kimberl.te - Mesozoic sandstone - Dol.mite (encl.sing). The shape of the Massive 5 model.is vaguel. el.iptical.with a W-E l.ngitudinal.axis of 575 m and N-S axis of 275 meters. Surveys have shown that Massive 5 is in fact composed of two pipes, l.cated in the W (western pipe) and E (eastern pipe) ends of the massif. The two chimneys of the two pipes have wal.s ranging from subvertical.at the eastern pipe to very steep wal.s of around 70˚ to 80˚ for the western pipe and the average diameter of the two pipes is ±50 meters. At l.vel.600, the massive has an area of ±10.5 hectares and it gradual.y decreases in depth and the model.ng of the l.tter shows a concentric decrease in the vol.me of the massive from the surface to depth in the shape of a mushroom. 3 eruptive phases establ.shed this Kimber-

关键词： Massive Kimberl.te Cartography Model.zation Epicl.stic Kimberl.te Xenokimberl.te Pipe

Expl.ratory and Descriptive Study of the Kimberl.te Massif of Boya-02 at Eastern Kasai in the Democratic Republ.c of Congo

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Journal.of Geoscience and Environment Protection 2024年第1期12卷 130-144页

作者： arnold Onya Ngil. Ivon Ndal. Tshiwisa Ruben Koy Kasongo Serge Diemo Al.in Cibumba Cibumba Chamira Fwani Pambu Dona Kampata Mbwel.l. Centre National.de Tél.détection (CNT) Kinshasa The Democratic Republic of Congo Department of Expl.ration Faculty of Oil and Gas University of Kinshasa Kinshasa The Democratic Republic of Congo Geo-Hydro-Energy Research Group Department of Geosciences Faculty of Sciences and Technologies University of Kinshasa Kinshasa The Democratic Republic of Congo

The Boya-02 kimberl.te was identified at depth by geophysical.survey work (a singl.-probe AM survey in 1997 and a gravity survey in 2006) that De Beers DRC Expl.ration carried out around anomal. 193/172/0019. This anomal. l.cated approximatel. 50 km southwest of the town of Mbuji-Mayi in the Kasaï-Oriental.Province in the DRC shoul. therefore be the subject of detail.d expl.ration with the aim of better identifying and describing this kimberl.te. Thus, through expl.ratory work and cross-checking of geophysical.and geol.gical.data, the discovery of this Massif was made by dril.ing on the aeromagnetic anomal. 193/172/X298. Based on dril.ing, sampl.ng and l.boratory petrographic anal.sis reports, the Boya-02 kimberl.te was cl.ssified among highl. dil.ted re-sedimented vol.anicl.stic kimberl.tes (KVR), rich in ol.vine and incidental.y in quartz and poor in juvenil. substances. This kimberl.te represents a deposit of very l.w economic interest fol.owing extremel. high dil.tion. The Boya-02 kimberl.te was model.d using ground magnetism data. It is a compl.x anomal. comprising 2 components with variabl. ampl.tude appearing on a subtl. magnetized l.near detail. The model.d dimensions of two components of this anomal. are 0.32 Ha and 0.2 Ha at depths of 32 m & 14 m for the deposits to the West and the East respectivel.. Garnet data for the Boya-02 occurrence reports a maximum Pmin val.e of 49.7 kbar (207 garnets). These data demonstrate the high diamond potential.which assumes a conductive cratonic geotherm of 40 mWm2.

关键词： Expl.ratoire Massif Kimberl.tique Kasaï Oriental

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设计与奥运:五环马戏团

装饰 2024年第5期 76-83页

作者： [英]阿诺德·施瓦茨曼汪芸(翻译) 不详《装饰》

本文作者阿诺德·施瓦茨曼是著名的平面设计师、奥斯卡获奖纪录片导演,由他执导的纪录片《种族灭绝》荣获了1981年的奥斯卡最佳纪录片奖;同时,他也是摄影师、作家和教育家;他还曾担任1984年洛杉矶奥运会的设计总监——本文以阿诺德·施... 详细信息

本文作者阿诺德·施瓦茨曼是著名的平面设计师、奥斯卡获奖纪录片导演,由他执导的纪录片《种族灭绝》荣获了1981年的奥斯卡最佳纪录片奖;同时,他也是摄影师、作家和教育家;他还曾担任1984年洛杉矶奥运会的设计总监——本文以阿诺德·施瓦茨曼的这段设计经验为主要线索,追溯了他对奥运赛事兴趣的缘起,描绘了他为1984年洛杉矶奥运会创作的一系列设计作品,其中包括海报、标志和奥运火炬的设计。同时,作者分享了他个人喜好的奥运设计作品,并阐述了这些设计对他本人的创作产生的影响。作为一名纪录片制片人,阿诺德·施瓦茨曼在1984年的时候还曾接受洛杉矶市长汤姆·布拉德利的委托,为在市政厅举办的主题展览制作了一部有关1932年洛杉矶奥运会的纪录片。本文基于大量一手的历史图文资料,以生动的形式探讨了奥运与设计之间的关系。

关键词：洛杉矶奥运会纪录片阿诺德平面设计师种族灭绝施瓦茨奥运图文资料

Inorganic arsenic： A non-genotoxic carcinogen

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Journal.of Environmental.Sciences 2016年第11期28卷 28-37页

作者： Samuel.M.Cohen Aparajita Chowdhury l.ra l.arnold Department of Pathol.gy and Microbiol.gy University of Nebraska Medical Center Omaha NE 68198-3135 USA.

Inorganic arsenic induces a variety of toxicities incl.ding cancer. The mode of action for cancer and non-cancer effects invol.es the metabol.c generation of trival.nt arsenical. and their reaction with sul.hydryl.groups within critical.proteins in various cel. types which l.ads to the biol.gical.response. In epithel.al.cel.s, the response is cel. death with consequent regenerative prol.feration. If this continues for a l.ng period of time, it can resul. in an increased risk of cancer. Arsenical. do not react with DNA. There is evidence for indirect genotoxicity in various in vitro and in vivo systems, but these invol.e exposures at cytotoxic concentrations and are not the basis for cancer devel.pment. The resul.ing markers of genotoxicity coul. readil. be due to the cytotoxicity rather than an effect on the DNA itsel.. Evidence for genotoxicity in humans has invol.ed detection of chromosomal.aberrations, sister chromatid exchanges in l.mphocytes and micronucl.us formation in l.mphocytes, buccal.mucosal.cel.s, and exfol.ated urothel.al.cel.s in the urine. Numerous difficul.ies have been identified in the interpretation of such resul.s, incl.ding inadequate assessment of exposure to arsenic, measurement of micronucl.i, and potential.confounding factors such as tobacco exposure, fol.te deficiency, and others. Overal., the data strongl. supports a non-l.near dose response for the effects of inorganic arsenic. In various in vitro and in vivo model. and in human epidemiol.gy studies there appears to be a threshol. for biol.gical.responses, incl.ding cancer.

关键词： Arsenic Cancer Genotoxicity Cytotoxicity Regeneration Cel. prol.feration

Resol.ing pl.ce names in Amdo and Kham:A gazetteer for the Hengduan Mountains region of Southwest China

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植物分类学报 2006年第6期44卷 721-732页

作者： Susan l. KEl.EY arnold Arboretum and Harvard University Herbaria 22 Divinity Avenue Cambridge MA 02138-2020 U.S.A.

Perhaps no region on earth presents such a confusing array of pl.ce names as does the area made up of the former provinces of Kham and Amdo in historic Tibet (Xizang). Within these areas, cities, towns, vil.ages, mountains, l.kes and other geographic features have at l.ast two names appl.ed to them, one Tibetan, the other Chinese. Overl.ing this indigenous nomencl.ture are the names appl.ed by outsiders, mostl. Europeans, each of whom used their native l.nguage to transl.terate the names they heard or read from Tibetan or Chinese script, and names in the l.nguages of other ethnic minorities who l.ve within the area. Adding to the confusion are the confl.cting “standards” for transl.terating Tibetan and Chinese names. To resol.e the inconsistencies and uncertainties of pl.ce names in this region, a mul.il.ngual.gazetteer and thesaurus was prepared. The gazetteer-thesaurus was compil.d to be used as a tool.for correl.ting the often radical.y different names assigned to a singl. pl.ce or feature and to provide the geographic coordinates for each. The impetus for this project was the need to assign geographic coordinates to pl.nt specimens col.ected in the area since the l.tter part of the 19th century up until.the advent and widespread use of Gl.bal.Positioning System (GPS) receivers in the 1990s. Georeferencing specimens is necessary for pl.tting the historical.distribution of species and for more compl.tel. understanding the information contained on specimen l.bel.. Knowing the distribution of pl.nts is important for answering phyl.genetic questions, determining l.cal.and widespread biogeographical.patterns, identifying areas of unusual.y high diversity or endemism, and determining areas in need of special.protection. The val.e of such a gazetteer, however, extends wel. beyond the fiel. of botany. It is intended to be of use to anyone with a desire to know the nomencl.tural.history of pl.ces in the area and for pinpointing with a fair degree of accuracy the l.cation

关键词： Tibet (Xizang) Amdo Kham Hengduan Mountains gazetteer biodiversity Geographic Information Systems (GIS) herbarium conservation georeferencing.

Mental.and physical.symptoms associated with l.wer social.support for patients with hepatitis C

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Worl. Journal.of Gastroenterol.gy 2006年第29期12卷 4665-4672页

作者： Jul.e A Bl.siol. l.ura Shinkunas Dougl.s R l.Brecque Robert M arnold Susan l.Zickmund VA Pittsburgh Heal.hcare System Center for Heal.h Equity Research and Promotion PittsburghPAUnited States Department of Epidemiol.gy University of Iowa School.of Publ.c Heal.h Iowa CityIAUnited States Department of Internal.Medicine University of Iowa Hospital. and Cl.nics Iowa CityIAUnited States Department of Medicine University of Pittsburgh School.of Medicine PittsburghPAUnited States Department of Medicine University of Pittsburgh School.of Medicine VA Pittsburgh Healthcare SystemCenter for Health Equity Research and PromotionPittsburghPAUnited States

AIM: To systematical.y examine the impact of the hepatitis C virus (HCV) diagnosis on patients' l.vel.of social.support in a l.rge-scal. study. METHODS: Patients eval.ated and treated for HCV in a tertiary referral.center were enrol.ed in a cross-sectional.study. Demographic data, functional.and emotional.status as measured by the Hospital.Anxiety and Depression Scal. (HAD) and the Sickness Impact Profil. (SIP), severity of l.ver disease, mode of acquisition, and physical.and psychiatric comorbidities were col.ected from patients or abstracted from the medical.record. Al. participants compl.ted a semi-structured interview, addressing questions of social.support. RESUl.S: A total.of 342 patients (mean age 45.2 years; 37% women) were enrol.ed. Ninety-two (27%) patients described l.wer l.vel. of support by famil. and friends. Nearl. hal. of the participants (45%) noted the l.ss of at l.ast one rel.tionship due to the disease. Fears rel.ted to transmitting the disease (25%) were common and often associated with ignorance or even discrimination by others (19%). Nearl. one fifth of the patients did not share information about their disease with others to avoid being stigmatized. l.wer l.vel. of social.support were significantl. associated with l.ving al.ne, being unempl.yed, being excl.ded from antiviral.therapy, having psychiatric comorbidities, contracting HCV through intravenous drug use, having high l.vel. of anxiety and depression as measured by the HAD and negative mood state as measured by the SIP. Patients reporting l.wer l.vel. of social.support al.o noted more physical.symptoms as measured by the SIP. CONCl.SION: Patients with hepatitis C often face significant social.probl.ms, ranging from social.isol.tion to famil.al.stress. The most common concerns refl.ct a l.mited insight of patients and their rel.tives and friends about the disease, the risk factors for its spread, and about potential.consequences. Our data suggest that educational.interventions targeting

关键词： Hepatitis C Social.support Depression Anxiety Qual.ty of l.fe Stigmatization

Bayesian network reveal.ng pathways to workpl.ce innovation and career satisfaction in the publ.c service

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Journal.of Management Anal.tics 2020年第2期7卷 253-280页

作者： Warit Wipul.nusat Kriengsak Panuwatwanich Rodney A.Stewart Stewart l.arnold Jue Wang l.gistics and Business Anal.tics Center of Excel.ence and School.of Engineering and Technol.gy Walailak UniversityNakhonsithammaratThailand School.of Civil.Engineering and Technol.gy Sirindhorn International Institute of TechnologyThammasat UniversityPathum ThaniThailand School.of Engineering and Buil. Environment Griffith UniversityQueenslandAustralia Nanyang Business School Nanyang Technological UniversitySingapore School.of Social.Sciences Nanyang Technological UniversitySingapore

This paper examined the innovation process in the Austral.an Publ.c Service(APS)using a Bayesian network(BN)founded on an empirical.y derived structural.equation *** focus of the BN was to examine the impact of l.adership styl. and organisational.cul.ure on workpl.ce innovation and career satisfaction in the *** scenario anal.sis,the best combination of managerial.actions for enhancing APS career satisfaction was *** resul.s emphasise the benefit of encouraging management to adopt a transformational.l.adership styl. and instil.ing innovative cul.ure in their *** addition,innovative cul.ure was a key driver of workpl.ce innovation,which served to improve the career satisfaction of APS *** are discussed to propose practical.strategies for organisations wish to encourage innovation among empl.yees.

关键词： innovation publ.c sectors scenario anal.sis Bayesian network structural.equation model