Polímeros de coordenação à base de cobalto(II) e N,N'-bis(4-piridil)-1,4,5,8-naftaleno diimida como ligante e suas propriedade estruturais, espectroscópicas e fotoelétricas

Polímeros de coordenação têm atraído a atenção de pesquisadores na última década por conta de sua incrível versatilidade e virtualmente infinito número de possibilidades de combinação de ligantes orgânicos e centros metálicos. Estes compostos normalmente herdam as características magnéticas, eletrônicas e espectroscópicas de seus componentes base. Entretanto, apesar do crescente número de trabalhos na área, ainda são raros os polímeros de coordenação que apresentem condutividade elétrica. Para este fim, utilizou-se a N,N\'-bis(4-piridil)-1,4,5,8-naftaleno diimida, ou NDI-py, que pertence a uma classe de compostos rígidos, planares, quimicamente e termicamente estáveis e que já foram extensamente estudados por suas propriedades fotoeletroquímicas e semicondução do tipo n. O primeiro polímero de coordenação sintetizado, MOF-CoNDI-py-1, indicou ser um polímero linear, de estrutura 1D. O segundo, MOF-CoNDI-py-2, que conta com ácido tereftálico como ligante suporte, é um sólido cristalino com cela unitária monoclínica pertencente ao grupo espacial C2/c, determinado por difração de raios-X de monocristal. A rede apresenta um arranjo trinuclear de íons Co(II) alto spin com coordenados em uma geometria de octaedro distorcido, enquanto os ligantes NDI-py se encontram em um arranjo paralelo na estrutura, em distâncias apropriadas para transferência eletrônica. Com o auxílio de cálculo teóricos a nível de DFT, foi realizado um estudo aprofundado dos espectros eletrônicos e vibracionais, com atribuição das transições observadas, tanto para o MOF-CoNDI-py-2 quanto para o ligante NDI-py livre. A rede de coordenação absorve em toda a região do espectro eletrônico analisada, de 200 nm a 2500 nm, além de apresentar luminescência com característica do ligante. Dispositivos eletrônicos fabricados com um cristal do MOF-CoNDI-py-2 revelaram condutividades da ordem de 7,9 10-3 S cm -1, a maior já observada para um MOF. Além de elevada, a condutividade elétrica dos cristais demonstrou-se altamente anisotrópica, sendo significativamente menos condutor em algumas direções. Os perfis de corrente versus voltagem foram analisados em termos de mecanismos de condutividade, sendo melhores descritos por um mecanismo limitado pelo eletrodo to tipo Space-Charge Limited Current, concordando com a proposta de condutividade através dos planos de NDI-py na rede. A condutividade dos cristais também é fortemente dependente de luz, apresentando fotocondução quando irradiado por um laser vermelho, de 632 nm, enquanto apresenta um comportamento fotorresistivo frente a uma fonte de luz branca. Estes resultados, combinados, trazem um MOF em uma estrutura incomum e com elevada condutividade elétrica, modulada por luz, em medidas diretas de corrente. Não existem exemplos conhecidos de MOFs na literatura com estas características.

Operator's and organizational maintenance manual : radio set control groups AN/GRA-39 (NSN 5820-00-889-3860), AN/GRA-39A (NSN 5820-00-082-3998) and AN/GRA-39B (NSN 5820-00-949-9909).

"July 1975."

Organizational, direct support, and general support maintenance repair parts and special tools lists for radar signal detecting set, AN/APR-39(V)1 (NSN 5841-01-023-7112).

"NAVAIR 16-30APR39-3."

Experimental Infection of Culex Annulirostris, Culex Gelidus, and Aedes Vigilax With a Yellow Fever/Japanese Encephalitis Virus Vaccine Chimera (Chimerivax TM-JE)

Australian mosquitoes from which Japanese encephalitis virus (JEV) has been recovered (Culex annulirostris, Culex gelidus, and Aedes vigilax) were assessed for their ability to be infected with the ChimeriVax-JE vaccine, with yellow fever vaccine virus 17D (YF 17D) from which the backbone of ChimeriVax-JE vaccine is derived and with JEV-Nakayama. None of the mosquitoes became infected after being fed orally with 6.1 log(10) plaque-forming units (PFU)/mL of ChimeriVax-JE vaccine, which is greater than the peak viremia in vaccinees (mean peak viremia = 4.8 PFU/mL, range = 0-30 PFU/mL of 0.9 days mean duration, range = 0-11 days). Some members of all three species of mosquito became infected when fed on JEV-Nakayama, but only Ae. vigilax was infected when fed on YF 17D. The results suggest that none of these three species of mosquito are likely to set up secondary cycles of transmission of ChimeriVax-JE in Australia after feeding on a viremic vaccinee.

The NetWorkPlace(TM) Phenomenon: any time and any place - reality or a seductive myth?

A new spatial logic encompassing redefined concepts of time and place, space and distance, requires a comprehensive shift in the approach to designing workplace environments for today’s adaptive, collaborative organizations operating in a dynamic business world. Together with substantial economic and cultural shifts and an increased emphasis on lifestyle considerations, the advances in information technology have prompted a radical re-ordering of organizational relationships and the associated structures, processes, and places of doing business. Within the duality of space and an augmentation of the traditional notions of place, organizational and institutional structures pose new challenges for the design professions. The literature reveals that there has always been a mono-organizational focus in relation to workplace design strategies and the burgeoning trend towards inter-organizational collaboration, enabled the identification of a gap in the knowledge relative to workplace design. The NetWorkPlaceTM© constitutes a multi-dimensional concept having the capacity to deal with the fluidity and ambiguity characteristic of the network context, as both a topic of research and the way of going about it.

Results using Trabecular Metal™ augments in combination with acetabular impaction bone grafting in deficient acetabula

We examined whether the use of trabecular metal wedges to fill segmental defects is an effective method of socket reconstruction when used in combination with impaction grafting and implantation of a cemented socket. Fifteen hips in 14 patients underwent impaction grafting in combination with a TM wedge with a minimum of 2 years follow-up. All patients had their defects assessed using the Paprosky classification. Patients were reviewed with x-rays and migration of the implant was measured. Outcome scores were also collected. Mean follow-up was 39 months (25-83). The mean age at surgery was 67.8 (49-85) years. Seven of the patients had previously undergone impaction grafting with the use of a stainless steel rim mesh to constrain the graft. None of the patients had failed either clinically or radiologically.

Comparison of three generations of ActiGraph (TM) activity monitors in children and adolescents

In this study, we evaluated agreement among three generations of ActiGraph (TM) accelerometers in children and adolescents. Twenty-nine participants (mean age = 14.2 +/- 3.0 years) completed two laboratory-based activity sessions, each lasting 60 min. During each session, participants concurrently wore three different models of the ActiGraph (TM) accelerometers (GT1M, GT3X, GT3X+). Agreement among the three models for vertical axis counts, vector magnitude counts, and time spent in moderate-to-vigorous physical exercise (MVPA) was evaluated by calculating intraclass correlation coefficients and Bland-Altman plots. The intraclass correlation coefficient for total vertical axis counts, total vector magnitude counts, and estimated MVPA was 0.994 (95% CI = 0.989-0.996), 0.981 (95% CI = 0.969-0.989), and 0.996 (95% CI = 0.989-0.998), respectively. Inter-monitor differences for total vertical axis and vector magnitude counts ranged from 0.3% to 1.5%, while inter-monitor differences for estimated MVPA were equal to or close to zero. On the basis of these findings, we conclude that there is strong agreement between the GT1M, GT3X, and GT3X+ activity monitors, thus making it acceptable for researchers and practitioners to use different ActiGraph (TM) models within a given study.

Practice and Procedures - Motor Accident Insurance Act 1994 ss 39 and 57

In Bermingham v Priest [2002] QSC 057 jones J considered the position of persons seeking to claim damages where the Motor Accident Insurance Act 1994 applies prior to its amendment by the Motor Accident Insurance Amendment Act 2000, and where proceedings are brought close to expiration of the statutory limitation period.

Playing Monopoly(TM) with 1st year property economics students

Game playing contributes to the acquisition of required skills and competencies whilst supporting collaboration, communication and problem solving. This project introduced the board game Monopoly CityTM to tie theoretical class room learning with collaborative, play based problem solving.

Kohti lyyristä abstraktismia : Anitra Lucanderin 1950-luvun modernismi

Towards Lyrical Abstraction Anitra Lucander s Modernism in the 1950s Anitra Lucander (1918-2000) was one of the early pioneers of abstract art in Finland. During the Second World War Finnish art and cultural life was isolated and stagnated and figurative art was still dominant after the war. In the late 1940s and early 1950s, new international abstract art movements started to come to Finland. Anitra Lucander was one of the artists of the younger generation after the war who took an interest in the abstract movements in the early 1950s. At the beginning of the 1950s, abstract art came to Finland primarily in the form of Concretism, but simultaneously, a more delicate abstract movement emerged, and Anitra Lucander was among those cultivating such conceptions in her art. In this thesis, I observe and analyze through Anitra Lucander s art this central movement in Finnish modern art that has not yet been extensively studied. I examine how Anitra Lucander s art connects with the style change in Finnish art. I scrutinize the factors that affected Lucander and turned her towards abstract expression, and the effect her art had on emergence of abstract art in Finland. I will also consider the development of her art, the reception and critique of her art and the effect the critique had on her position in the 1950s art world. Because of a lack of earlier studies, I will undertake basic research, relying on empirical primary source material, where the starting point is to place the phenomenon under examination in the historical and cultural context. The most significant study materials are the artist s paintings and graphics from 1948 to 1960, newspaper and magazine articles from the same era, archive sources and interviews with Lucander s relatives, fellow artists and friends. An interesting aspect of the topic is the fact that Anitra Lucander was the only woman among the important pioneers of early Finnish abstract art. Through Lucander s art, I also examine the position of female artists in the tradition of Modernism as well as in the Finnish art world of the 1950s. This theoretical background is provided by the studies of feminist art historians, such as Marsha Meskimmon, Gill Perry, Griselda Pollock and Anne Middleton Wagner. Lucander s position in the male-dominated Finnish art scene of the 1950s, and how she achieved her position, emerges as one of the central themes of the study. I will also observe whether gender is evident in Lucander s art and expression, as well as her reception and critique compared to the reception of her male colleagues art. From a woman s point of view, I reveal the masculine rhetoric and gendered attitudes in the critique of the era. As a theoretical and methodological frame of reference, I use discourse analysis. Anitra Lucander encountered modernistic, international art movements during her journeys to Paris in the late 1940s and early 1950s. Her art evolved from the geometric Concretism of the early decade towards more delicate and painterly abstract expression. After the mid-1950s, she had developed her signature expression; through Cubism and a collage technique, she developed in her painting a delicate, coloristic imagery, which can be characterized as Lyrical Abstraction. Lucander did not consider abstract expression to be categorical, but saw the abstract and the nonfigurative as equals: the line between the abstract and the figurative is very often fleeting in her art. Already in her own time, Lucander achieved a position as one of the most talented young artists of her generation and her work was included in significant exhibitions. This success can definitely be attributed to the fact that she embraced Modernism in its extreme form, abstraction, already at the beginning of her career and networked with male painters who shared her outlook and modernistic expression. For her, this was either a conscious or an unconscious method of adapting to the male-dominated Finnish art field in the 1950s. In spite of acclaim and attention, Lucander had to encounter the gendered attitudes in the critique of the time, and her art was often perceived through stereotypical views as overly feminine and dependent. However, with her art, Lucander played an important role in the breakthrough for colorism and abstract art in Finland in the 1950s.

Suomen Kuvalehden Hän-henkilöjutut tekstilajina

Tutkielma käsittelee Suomen Kuvalehden Hän-henkilöjuttuja tekstilajina. Lehti on itse nimennyt sarjan, mikä tukee ajatusta omasta tekstilajista. Marraskuusta 1989 lähtien Suomen Kuvalehdessä on ilmestynyt viikottain kahden aukeaman henkilöjuttu, jonka tekstin määrä ja jaottelu, otsikointi, taitto ja kuvitus ovat pysyneet lähes samana vuosien ajan. Jutut ovat pääosin tunnettujen suomalaisten haastatteluja. Hän-henkilöjutut ovat instituutio Suomen aikakauslehdistössä. Hän-henkilöjuttuja tarkastellaan tekstintutkimuksen keinoin. Teoreettisena viitekehyksenä on tekstilaji- eli genreteoria. Keskeiset teorialähteet ovat Swales (1990) ja Bhatia (1993). Työn aluksi Hän-henkilöjutut kontekstualisoidaan, mikä on olennaista tekstilajin tutkimisessa. Johdatuksessa perehdytään niin Hän-juttujen historiaan, Suomen Kuvalehden toimituksen näkemyksiin kuin journalistiikan oppikirjojen ohjeisiinkin. Hän-juttuja on ilmestynyt yli 700. Tutkimusaineisto rajataan pääosin vuoden 2003 juttuihin, mutta sarjan historiaa kerratessa juttuja tarkastellaan laajemmalti. Hän-logo, yhtenäiset otsikot ja tekstin asettelu ovat huomattavia tekstilajin määrittäjiä. Ne tekevät sarjaan toistuvuuden, jota vahvistetaan visuaalisesti. Hän-henkilöjuttujen valokuvia tarkastellaan Kressin ja van Leeuwenin visuaalisen kieliopin (1996) avulla. Kuvien säännönmukaisuus näkyy muun muassa niin, että vuoden 2003 Hän-juttujen kuvissa henkilö on useimmiten sijoitettu kuvan keskelle, ja tämä katsoo lähes poikkeuksetta suoraan kohti. Lisäksi henkilö on pienessä kuvassa rajattu tiukemmin kuin jutun pääkuvassa, joka täyttää 2/3 jutun ensimmäisestä aukeamasta. Kertojan havaittavuus tekstissä on omalaatuista Hän-henkilöjutuissa. Aihetta tarkastellaan käymällä tarkasti läpi yhden Hän-jutun koko kerronta. Taustalla on kirjallisuustieteen narratologian näkemys fyysisen tekijän ja kertojan eriävyydestä. Hän-henkilöjutussa Maskun Kalustetalon toimitusjohtajasta Toivo Sukarista (Suomen Kuvalehti 39/2003) havaitaan, että kertoja on jatkuvasti läsnä. Ainoastaan havaittavuuden aste vaihtelee. Kertoja esittää kysymyksiä, hän käskee lukijaa, huudahtaa, havainnoi kohdehenkilöä ja tapahtumaympäristöä, ottaa kantaa, esittää yhteenvetoja ja käyttää nimeämisen valtaa. Tuloksia kertojan havaittavuudesta testataan 15:een Hän-henkilöjuttuun. Niistä 12 on vuodelta 2003, lisäksi mukana on yksi juttu vuodelta 1990, 1995 ja 2000. Jutuista hahmotetaan tekstilajin kertojaa, joksi kirjallisuustieteen sisäistekijää kutsun. Tekstilajin kertojan rajoitukset ovat väljät, mutta havaittavuus näyttää olevan sidoksissa käsiteltävän henkilön tunnettuuteen. Mitä tunnetumpi henkilö, sitä enemmän kertoja voi tekstissä näyttäytyä. Lopuksi kartoitetaan Hän-henkilöjuttujen aloituksia. Niissä hahmottuu päätyyppejä, kuten tapahtuma-aloitus, havaintoaloitus ja referointialoitus, mutta tarkkarajaista luokittelua niistä ei voi tehdä. Osaksi sen perusteella voidaan väittää, että Hän-henkilöjutuilla ei ole kaavaa. Avainsanat: tekstintutkimus, tekstilaji, genre, henkilöjuttu, haastattelu, kertoja, sisäistekijä, aloitukset