Practices and attitudes to derivatives use in Australian commonwealth organisations

Little is known about risk management in the public sector This study reports on a survey of senior officers in Australian Commonwealth companies and statutory authorities concerning their practice and attitudes towards the use of derivative instruments for risk management. Using a variety of tests, the most important issue identified by respondents concerning the use of derivatives is for budgeting purposes. Of note, respondents rank commonly cited reasons advanced in the private sector such as reduced bankruptcy costs and taxation, as being relatively unimportant, which is consistent with arguments advanced in the paper The results also indicate that there are significant differences in the level of importance in some issues regarding derivatives use across public sector organisations, particularly those differentiated by a documented risk management plan. The study also documents for the first time the extent of derivatives use in the Australian public sector.

Application of quantitative analytical electron microscopy to the mineral content of insect cuticle

Quantification of calcium in the cuticle of the fly larva Exeretonevra angustifrons was undertaken at the micron scale using wavelength dispersive X-ray microanalysis, analytical standards, and a full matrix correction. Calcium and phosphorus were found to be present in the exoskeleton in a ratio that indicates amorphous calcium phosphate. This was confirmed through electron diffraction of the calcium-containing tissue. Due to the pragmatic difficulties of measuring light elements, it is not uncommon in the field of entomology to neglect the use of matrix corrections when performing microanalysis of bulk insect specimens. To determine, firstly, whether such a strategy affects the outcome and secondly, which matrix correction is preferable, phi-rho (z) and ZAF matrix corrections were contrasted with each other and without matrix correction. The best estimate of the mineral phase was found to be given by using the phi-rho (z) correction. When no correction was made, the ratio of Ca to P fell outside the range for amorphous calcium phosphate, possibly leading to flawed interpretation of the mineral form when used on its own.

Initiation of biological agents in patients with ankylosing spondylitis: results of a Delphi study by the ASAS Group

Background: There is ample evidence of important symptomatic efficacy of tumour necrosis factor alpha (TNFalpha) inhibition in ankylosing spondylitis (AS). Moreover, studies suggest that anti-TNF could be considered as the first disease controlling antirheumatic treatment (DC-ART) for AS. Objective: To determine precisely which patients with AS are most likely to benefit from anti-TNFalpha treatment because of the cost and possible long term side effects of such treatment. Methods: Assessment in Ankylosing Spondylitis (ASAS) members were asked to use a Delphi technique to name the characteristics of patients with AS for whom they would start DC-ART, in three different clinical presentations (isolated axial involvement, peripheral arthritis, enthesitis). Results: Among the 62 invited ASAS members, more than 50% actively participated in the four phases of definition according to the Delphi technique. For each of the three clinical presentations, a combination of five to six domains was proposed, with an evaluation instrument and a cut off point defining a minimum level of activity for each domain. Conclusion: This study provides a profile for a patient with AS for considering initiation of biological agents that reflects the opinion of the ASAS members, using a Delphi exercise. Further studies are required to assess their relevance and their consistency with clinical practice.

A microstrip Yagi antenna using EBG structure

[1] In this paper a detailed design, development and performances of a 5 GHz microstrip Yagi antenna, which uses a two-dimensional (2-D) electromagnetic band gap (EBG) structure in the ground plane, are presented. The results indicate that the use of the EBG structure improves the radiation pattern of the antenna. The cross polarization is suppressed by properly choosing the period and dimensions of EBGs. Also, the broadside gain is improved in comparison with the analogous antenna without the EBGs.

Winding patterns for actively shielded shim coils with asymmetric target-fields

A method is presented for calculating the currents and winding patterns required to design independent zonal and tesseral shim coils for magnetic resonance imaging. Both actively shielded and unshielded configurations are considered, and the region of interest can be located asymmetrically with respect to the coil's length. Streamline, target-field and Fourier-series methods are utilized. The desired target-field is specified at two cylindrical radii, on and inside a circular conducting cylinder of length 2L and radius a. The specification is over some asymmetric portion pL < z < qL of the coil's length (-1 < p < q < 1). Arbitrary functions are used in the outer sections, -L < z < pL and qL < z < L, to ensure continuity of the magnetic field across the entire length of the coil. The entire field is then periodically extended as a half-range cosine Fourier series about either end of the coil. The resultant Fourier coefficients are then substituted into the Fourier-series expressions for the internal and external magnetic fields, and current densities and stream functions on both the primary coil and shield. A contour plot of the stream function directly gives the required coil winding patterns. Spherical harmonic analysis and shielding analysis on field calculations from a ZX shim coil indicate that example designs and theory are well matched.

Multilayer transverse gradient coil design

In small, cylindrical gradient coils consisting of a single layer of wires, the limiting factor in achieving large magnetic field gradients is the rapid increase in coil resistance with efficiency. This behavior results from the decrease in the maximum usable wire diameter as the number of turns is increased. By adopting a multilayer design in which the coil wires are allowed to spread out into multiple layers wound at increasing radii, a more favorable scaling of resistance with efficiency is achieved, thus allowing the design of more powerful gradient coils with acceptable resistance values. By extending the theory used to design standard cylindrical gradient coils, mathematical expressions have been developed that allow the design of multilayer coils. These expressions have previously been applied to the design of a four-layer z-gradient coil. As a further development, the equations have now been modified to allow the design of multilayer transverse gradient coils. The variation in coil performance with the number of layers employed has been investigated for coils of a size suitable for use in NMR microscopy, and the effect of constructing the coil using wires or cuts in a continuous conducting surface has also been assessed. We find that at fixed resistance a small wire-wound two-layer coil offers an increase in efficiency of a factor of about 1.5 compared with a single-layer coil. In addition, a two-layer coil of 10-mm inner diameter has been designed and built. This coil had an efficiency of 0.41 Tm-1 A(-1), a resistance of 0.96 +/- 0.01 Omega, and an inductance of 22.3 +/- 0.2 muH. The coil produces a gradient that deviates from linearity by less than 5% over a central cylindrical region of interest of height and length 6.2 mm. (C) 2003 Wiley Periodicals, Inc.

Quality of life assessment in the community-dwelling elderly: Validation of the Assessment of Quality of Life (AQoL) Instrument and comparison with the SF-36

Measurement of Health-Related Quality of Life (HRQoL) of the elderly requires instruments with demonstrated sensitivity, reliability, and validity, particularly with the increasing proportion of older people entering the health care system. This article reports the psychometric properties of the 12-item Assessment of Quality of Life (AQoL) instrument in chronically ill community-dwelling elderly people with an 18-month follow-up. Comparator instruments included the SF-36 and the OARS. Construct validity of the AQoL was strong when examined via factor analysis and convergent and divergent validity against other scales. Receiver Operator Characteristic (ROC) curve analyses and relative efficiency estimates indicated the AQoL is sensitive, responsive, and had the strongest predicative validity for nursing home entry. It was also sensitive to economic prediction over the follow-up. Given these robust psychometric properties and the brevity of the scale, AQoL appears to be a suitable instrument for epidemiologic studies where HRQoL and utility data are required from elderly populations. (C) 2003 Elsevier Science Inc. All rights reserved.

Instrumentation used to measure residential magnetic fields and currents

The equipment used to measure magnetic fields and, electric currents in residences is described. The instrumentation consisted of current transformers, magnetic field probes and locally designed and, built signal conditioning modules. The data acquisition system was capable of unattended recording for extended time periods. The complete system was calibrated to verify its response to known physical inputs. (C) 2003 ISA-The Instrumentation Automation Society.

Prospectiva estrat??gica: instrumento para a constru????o do futuro e para a elabora????o de pol??ticas p??blicas

A prospectiva estrat??gica aparece como ferramenta que, apoiada nos instrumentos de an??lise econ??mica e social existentes e em t??cnicas espec??ficas, como o Delphi, a constru????o de cen??rios, a matriz de impactos cruzados e outras, possibilita ???vis??es de futuro???, que permitir??o a elabora????o de pol??ticas p??blicas que visem ?? constru????o de futuro desej??vel. Este trabalho pressup??e um Estado formulador de pol??ticas p??blicas e detentor de instrumentos de planejamento, o que nos remete a um vi??s ideol??gico: de que, no capitalismo contempor??neo, Estado e mercado coordenem os sistemas econ??micos, conforme explicitado no Plano Diretor da Reforma do Aparelho de Estado (Governo Federal, Brasil, 1995). S?? a aceita????o dessa hip??tese pode supor a exist??ncia e a necessidade de pol??ticas p??blicas, remetendo-nos o campo da ideologia e contrapondo-nos ao liberalismo.

Federalismo e rela????es intergovernamentais: os cons??rcios p??blicos como instrumento de coopera????o federativa

Se nos estados federais os mecanismos de coopera????o e coordena????o intergovernamental j?? s??o relevantes, no caso brasileiro eles ganham centralidade ainda maior. A Constitui????o Federal de 1988 agregou complexidade ao desenho federativo brasileiro, reconhecendo o munic??pio como ente federado. Esse processo foi acompanhado por intensa descentraliza????o de pol??ticas p??blicas, pelo fortalecimento do poder local e por mecanismos pouco coordenados de rela????o vertical e horizontal entre os entes federativos. Ao mesmo tempo, a aus??ncia de pol??ticas de desenvolvimento regional acentuou as desigualdades locais e regionais observadas historicamente no pa??s. Diferentes experi??ncias de consorciamento foram levadas a cabo por munic??pios no pa??s e ainda hoje esse ?? um instrumento de larga utiliza????o. De forma diversa, as iniciativas de coopera????o entre estados s??o ainda incipientes. As limita????es institucionais e jur??dicas dos desenhos utilizados pelos munic??pios, no entanto, levaram ?? aprova????o da Emenda Constitucional n?? 19/98, que instituiu os cons??rcios p??blicos e a gest??o associada de servi??os p??blicos.

Reforma administrativa: o caso do Reino Unido

O artigo apresenta uma an??lise das principais caracter??sticas da reforma administrativa empreendida no Reino Unido a partir da do primeiro governo Thatcher em 1979. Inicialmente, s??o descritos dois aspectos peculiares que, segundo os autores, explicam a intensidade das reformas administrativas a?? empreendidas: seu sistema pol??tico, no qual sobressai sobremaneira a alta capacidade decis??ria do Executivo, e as debilidades de seu sistema administrativo, alvo de cr??ticas reiteradas desde o Relat??rio do Comit?? Fulton, publicado em 1968. A partir disso, os autores descrevem tr??s fases recentes na reforma administrativa inglesa p??s-Thatcher. Nesta descri????o, s??o enfocadas as principais caracter??sticas e experi??ncias inovadoras adotadas, enfatizando, entre outros: 1) os chamados ???escrut??neos de Rayner???; 2) os sistemas de informa????es gerenciais adotados (Management Information System for Ministers e o Management Accounting System); 3) o programa Citizen???s Charter; 4) o processo de privatiza????o ingl??s; 5) a experi??ncia de contrata????o externa de servi??os (com a ado????o de instrumentos como a ???licita????o competitiva???, que permite aos pr??prios servidores p??blicos apresentarem propostas para presta????o de servi??os em competi????o com as empresas privadas, al??m dos sistemas Market Testing e Competing for Quality) e, por fim; 6) a pol??tica de gest??o de recursos humanos, com destaque para o forte processo de demiss??es no servi??o p??blico, o sistema de avalia????o de desempenho dos funcion??rios e de remunera????o por performance adotados no Reino Unido.

Os dois futuros do ato de governar: processos de descentraliza????o e recentraliza????o no ato de governar

As reformas do setor p??blico ajudaram a torn??-lo mais eficiente e eficaz, mas tamb??m geraram v??rios problemas. Tanto as reformas ao estilo do New Public Management quanto da governan??a contribu??ram para os problemas contempor??neos no ato de governar. Tais problemas t??m sido em grande parte pol??ticos, refletindo a tend??ncia de se enfatizar valores administrativos em detrimento dos valores democr??ticos. Os governos come??aram a reagir aos problemas reais e percebidos no setor p??blico desenvolvendo diversos instrumentos de ???meta-governan??a??? que podem ajudar a governar organiza????es p??blicas, mas que envolvem menos comando e controle diretos. Este artigo aborda as fun????es de governan??a contempor??neas na restaura????o da dire????o e coer??ncia nas pol??ticas e, ao mesmo tempo, no apoio ?? autonomia das organiza????es pol??ticas e no envolvimento de redes de pol??ticas no ato de governar.

Insulamento burocr??tico, accountability e transpar??ncia: dez anos de regula????o da Ag??ncia Nacional de Vigil??ncia Sanit??ria

Este artigo estuda os instrumentos e mecanismos de transpar??ncia e accountability das ag??ncias reguladoras brasileiras. Por meio da caracteriza????o dos processos de controle, participa????o e acesso a informa????es da Ag??ncia Nacional de Vigil??ncia Sanit??ria (Anvisa), analisa-se como as ag??ncias t??m utilizado tais instrumentos e mecanismos para acolher e processar diversos interesses do processo regulat??rio, promover a estabilidade das regras do jogo e refor??ar a sua legitimidade no ambiente pol??tico e social em que elas est??o inseridas. Foram utilizados dados relativos aos diversos instrumentos de transpar??ncia e accountability, bem como ??s inst??ncias e mecanismos de participa????o da sociedade no processo regulat??rio da Anvisa. Conclui-se que a accountability das ag??ncias ?? um contrafluxo ?? tend??ncia de insulamento, ao mesmo tempo em que se pode configurar um esfor??o de reconhecimento pela sociedade da chegada de um novo aparato institucional no Estado brasileiro: as ag??ncias reguladoras.

Comiss??o de ??tica Setorial: os desafios de fazer cumprir a ??tica na administra????o p??blica federal

Este texto parte do reconhecimento de que a implementa????o de Comiss??es de ??tica Setoriais constitui componente fundamental para concretizar a promo????o da ??tica no ??mbito do Sistema de Gest??o da ??tica do Poder Executivo Federal. Entretanto, essa n??o ?? uma tarefa simples. A an??lise de dados secund??rios e a revis??o da literatura sobre o tema suscitam as quest??es: como implementar Comiss??es de ??tica Setoriais? H?? lacunas no processo de implanta????o? Quais seriam os meios para transpor as dificuldades inerentes a esse processo? Realizou-se pesquisa explorat??ria, indutiva, qualitativa. O estudo de dois casos (um de sucesso e outro de fracasso no processo de implementa????o dessas Comiss??es) indica que a ado????o sistem??tica de instrumentos pedag??gicos para a promo????o da ??tica, o comprometimento da alta administra????o e a cria????o de uma rede interna de pessoas capacitadas e sens??veis ao tema s??o elementos importantes nesse processo. O estudo sugere, ainda, a????es que podem favorecer a efetiva implementa????o dessas Comiss??es.

Conhecimentos, habilidades e atitudes: o conceito de compet??ncias no trabalho e seu uso no setor p??blico

Este estudo tem dois objetivos: revisar criticamente a produ????o cient??fica nacional sobre o tema ???compet??ncias no trabalho e nas organiza????es???; e apresentar o conceito e discutir sua utiliza????o no setor p??blico. Para tanto foram analisados relatos de pesquisa emp??rica e ensaios nacionais e estrangeiros ??? em peri??dicos de psicologia e administra????o. Foram discutidos: enfoques te??ricos, instrumentos de coleta de dados, procedimentos de an??lise, entre outros aspectos. Na an??lise da produ????o nacional, constatou-se que, em sua maioria, as pesquisas: descrevem compet??ncias ocupacionais ou profissionais; possuem desenho survey; apresentam pluralidade quanto ?? natureza da pesquisa e utiliza????o de m??todos e t??cnicas para coleta e an??lise de dados; e s??o realizadas principalmente no setor terci??rio da economia. Verificou-se, ainda, a converg??ncia do conceito de compet??ncia, diante da complexidade e fragmenta????o te??rica previamente constatadas na literatura. Entretanto, mesmo em evid??ncia, a produ????o cient??fica brasileira sobre o tema ?? recente e ainda h?? uma lacuna sobre a discuss??o do construto e sua aplica????o no setor p??blico, em especial no caso brasileiro, quando se trata da administra????o p??blica federal, direta, aut??rquica e fundacional.