Evasive Maneuvers in Space Debris Environment and Technological Parameters

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Debris, Roughness and Friction of Stainless Steel Archwires Following Clinical Use

Objective: To investigate the degree of debris, roughness, and friction of stainless steel orthodontic archwires before and after clinical use.Materials and Methods: For eight individuals, two sets of three brackets (n = 16) each were bonded from the first molar to the first premolar. A passive segment of 0.019- x 0.025-inch stainless steel archwire was inserted into the brackets and tied by elastomeric ligature. Debris level (via scanning electron microscopy), roughness, and frictional force were evaluated as-received and after 8 weeks of intraoral exposure. Mann-Whitney, Wilcoxon signed-rank, and Spearman correlation tests were used for statistical analysis at the .05 level of significance.Results: There were significant increases in the level of debris (P = .0004), roughness of orthodontic wires (P = .002), and friction (P = .0001) after intraoral exposure. Significant positive correlations (P < .05) were observed between these three variables.Conclusion: Stainless steel rectangular wires, when exposed to the intraoral environment for 8 weeks, showed a significant increase in the degree of debris and surface roughness, causing an increase in friction between the wire and bracket during the mechanics of sliding. (Angle Orthod. 2010;80:521-527.)

The effect of changing the mode of ventilation on the arterial-to-end-tidal CO2 difference and physiological dead space in laterally and dorsally recumbent horses during halothane anesthesia

Objective - To evaluate the effect of changing the mode of ventilation from spontaneous to controlled on the arterial-to-end-tidal CO2 difference [P(a-ET)CO2] and physiological dead space (VD(phys)/VT) in laterally and dorsally recumbent halothane-anesthetized horses. Study Design - Prospective, experimental, nonrandomized trial. Animals - Seven mixed breed adult horses (1 male and 6 female) weighing 320 ± 11 kg. Methods - Horses were anesthetized in 2 positions - right lateral and dorsal recumbency - with a minimum interval of 1 month. Anesthesia was maintained with halothane in oxygen for 180 minutes. Spontaneous ventilation (SV) was used for 90 minutes followed by 90 minutes of controlled ventilation (CV). The same ventilator settings were used for both laterally and dorsally recumbent horses. Arterial blood gas analysis was performed every 30 minutes during anesthesia. End-tidal CO2 (PETCO2) was measured continuously. P(a-ET)CO2 and VD(phys)/VT were calculated. Statistical analysis included analysis of variance for repeated measures over time, followed by Student-Newman-Keuls test. Comparison between groups was performed using a paired t test; P < .05 was considered significant. Results - P(a-ET)CO2 and VD(phys)/VT increased during SV, whereas CV reduced these variables. The variables did not change significantly throughout mechanical ventilation in either group. Dorsally recumbent horses showed greater P(a-ET)CO2 and VD(phys)/VT values throughout. PaCO2 was greater during CV in dorsally positioned horses. Conclusions and Clinical Relevance - Changing the mode of ventilation from spontaneous to controlled was effective in reducing P(a-ET)CO2 and physiological dead space in both laterally and dorsally recumbent halothane-anesthetized horses. Dorsal recumbency resulted in greater impairment of effective ventilation. Capnometry has a limited value for accurate estimation of PaCO, in anesthetized horses, although it may be used to evaluate pulmonary function when paired with arterial blood gas analysis. © Copyright 2000 by The American College of Veterinary Surgeons.

Relation between speaking space of the /s/ sound and freeway space in dentate and edentate subjects.

The purpose of this study is to assess the relation between the speaking space of the /s/ sound and the freeway space in two subject groups. One group had natural dentition (Group I, n = 61) and the other comprised complete denture wearers (Group II, n = 33). The analysis was done by means of a jaw-tracking device (K6-I Diagnostic System, Myotronics Research Inc., Seattle, WA, USA). Freeway space was determined by asking the subjects to occlude from the postural rest position. Speaking space of /s/ was measured during the pronunciation of the word seis and comprised the mean distance from the /s/ speaking position to maximal intercuspation. A weak correlation was found between the speaking space of /s/ and the freeway space in Group I (r = 0.41, p < 0.01), but in Group II, the correlation was stronger (r = 0.75, p < 0.01). The speaking space of /s/ and freeway space were different in Group I, but statistically similar in Group II (paired t-test, alpha = 0.05). It can be suggested that anatomic changes following prosthetic procedures caused a functional adaptation which resulted in more similar values for the speaking space of /s/ and the freeway space.

Information access law and disclosing of information by joint-stock companies in Brazil: open data and Extensible Business Reporting Language (XBRL) standard

The strategic management of information plays a fundamental role in the organizational management process since the decision-making process depend on the need for survival in a highly competitive market. Companies are constantly concerned about information transparency and good practices of corporate governance (CG) which, in turn, directs relations between the controlling power of the company and investors. In this context, this article presents the relationship between the disclosing of information of joint-stock companies by means of using XBRL, the open data model adopted by the Brazilian government, a model that boosted the publication of Information Access Law (Lei de Acesso à Informação), nº 12,527 of 18 November 2011. Information access should be permeated by a mediation policy in order to subsidize the knowledge construction and decision-making of investors. The XBRL is the main model for the publishing of financial information. The use of XBRL by means of new semantic standard created for Linked Data, strengthens the information dissemination, as well as creates analysis mechanisms and cross-referencing of data with different open databases available on the Internet, providing added value to the data/information accessed by civil society.

Site Selection for Restoration Planning: A Protocol With Landscape and Legislation Based Alternatives

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

On the equivalence between the wave-packet phase space representation (WPPSR) and the phase space generated by the squeezed states

We show that the parametrized Wave-Packet Phase Space representation, which has been studied earlier by one of the authors, is equivalent to a Squeezed States Phase Space Representation of quantum mechanics. © 1988.

Políticas públicas: o ensino de arte na educação básica

Pós-graduação em Artes - IA

TV universitária, um modelo de gestão em construção: TV UNAERP de Ribeirão Preto

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O estabelecimento virtual na sociedade técnica: a necessária busca de segurança jurídica nas transações comerciais

Pós-graduação em Direito - FCHS

Saúde e segurança do trabalhador do barro em arranjos produtivos locais: o caso do artesanato de barro nos bairros Olarias e Poti Velho na cidade de Teresina - Piauí

Pós-graduação em Geografia - IGCE

O uso da Lei Rouanet como ferramenta produtiva em um plano de comunicação

The Rouanet law is a tax incentive law that allows companies to invest up to 4% of their taxes - based on actual profit - in sponsoring cultural projects previously approved by the Ministry of Culture. By sponsoring these projects, companies can have their name attached to them and, consequently, strengthening their brand and increase its visibility in the market. Whereas this project is aligned to the company vision, its image will be strengthened and the sales will increase. Large companies use the Rouanet Law to sponsor cultural events and have very strong names in the Brazilian market, perhaps worldwide. Examples: Petrobras, Banco do Brasil, Banco Bradesco, BNDES, Usiminas, Vale, among others. The Public Relations professional, who’s responsible for internal and external communication of a company, can use it as a differential of his work, expanding the company's profits with minimum investments, aligning the company's vision to actual practices and using the sponsorship as an agent capable of strengthen its social responsibility and, due to that, to increase the trust of its target audience. This study will address the theoretical and practical aspects of the Rouanet Law and of the public relations professionals, beyond mentioning examples on the subject, with special attention to Petrobras, the largest sponsor of cultural projects in Brazil. The greatest problem of the Rouanet Law is the fact that its sponsored projects are mostly concentrated in the Southeast, specifically in the Rio - São Paulo region. The more popular the Act become, for most places it will spread and Brazil may, after some time, become a world reference in the Cultural point

Como os pesquisadores da UNESP-Botucatu concebem a ética na experimentação animal? Consciência ou obediência?: subtitulo

Atualmente existe um consenso de que os pesquisadores estão mais conscientes em relação ao trato com as cobaias e com o bem estar animal, ao mesmo tempo, sabe-se que os comitês de ética recentes estão intensificando a fiscalização dos laboratórios. Há também leis a respeito do trato com os animais utilizados para experimentação que conta com penas, como multas em dinheiro até a exoneração do cargo de cientista e pesquisador. Investigaram-se os pesquisadores, através de um questionário, se estão mais conscientes acerca do bem estar animal ou apenas se adéquam as diretrizes dos comitês de ética para que seu projeto seja aprovado. Além de notarmos diferenças significativas entre os pesquisadores anteriores e posteriores a Lei 11.794/08 que instituiu os comitês de ética. Tendo os mais novos uma sistematização maior no trato com as cobaias enquanto os antigos repensaram suas formas de pesquisa. Quanto ao bem estar animal, nota-se que apenas se adequaram às leis, e que caso as mesmas não houvessem sido criadas não fariam alterações em seus laboratórios