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The aim of this study was to examine the effectiveness of a new, integrated service delivery (ISD) network of health and social services for frail elderly living in a semi-urban community. A quasi-experimental study was conducted from 1997 to 2000, with measures taken before implementation (T0) and every 12 months after implementation for a 3-year period (T1, T2, T3); 482 people aged 75 years or older from 2 communities, 272 in the experimental and 210 in the control group, were followed. Analyses were conducted using parametric and non-parametric statistics, a generalized linear model, and Cox regression for survival analysis. A declining trend in institutionalization was observed and the desire to be institutionalized was lower in the study group. When absence of deterioration on follow-up was analysed in terms of the level of autonomy, the ISD network produced positive effects on the frailer clientele at T1, effects that tended to be maintained at T2. In regard to caregivers' burden, the ISD network seemed to have been effective, with caregivers' burden being less at T1 and T2. The ISD network did not have a marked effect on the utilization of services. The ISD network did, in fact, produce some effects that should be seen as important for the elderly population.

Describes a course designed to assist students in writing differential equations to represent chemical processes and to solve these problems on digital computers. Course outline and discussion of computer projects and the simulation and optimization of a continuously stirred tank reactor process are included. (JN)

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In most areas of public policy, where regulation is expected to exhibit transparency and accountability, evaluation is recognized as necessary. Broadcasting is no different. Nevertheless, recently published reports argue that a new evaluative approach for broadcasting processes and policies is required because past assessments are outdated and current methodologies are lacking in rigour. Using a mixed methods approach, which explores the use of formal evaluation methods, this study seeks to provide tangible data about 141 commercial radio stations having undergone radio licence renewals from 1997-2007. The objective of the study is to determine how and to what extent Canada's regulation agency, the Canadian radio-television and telecommunications commission (CRTC), holds radio station owners accountable to the objectives of the Canadian legislation, regulations and policies, as well as broadcasters' conditions of licence. Although the CRTC has criteria to evaluate stations and has been moving toward streamlining in recent years, it is apparent that case by case approaches are still employed and discrepancies have taken place in providing sanctions to non-compliant stations. Results also demonstrate how the process lacks monitoring to uphold accountability. The study provides an example for all countries seeking to improve accountability in the communication sector as a whole. [ABSTRACT FROM AUTHOR]

Contrasting irradiation of senescent cells of the diatom Thalassiosira sp. in association with the bacterium Pseudomonas stutzeri showed the effect of intensity of irradiance on the transfer of singlet oxygen ( 1 O 2 ) to bacteria attached to phytoplanktonic cells. Under low irradiances, 1 O 2 is produced slowly, favors the oxidation of algal unsaturated lipids (photodynamic effect), and limits 1 O 2 transfer to attached bacteria. However, high irradiances induce a rapid and intense production of 1 O 2 , which diffuses out of the chloroplasts and easily reaches the attached bacteria, where it efficiently oxidizes their unsaturated membrane components. Analysis of numerous sinking particle samples collected in different regions of the Canadian Arctic showed that the photooxidation state of attached bacteria increased from ice-covered areas to open water, in agreement with in vitro results. Photooxidation of bacteria appeared to be particularly intense in sea ice, where the sympagic algae-bacteria association is maintained at relatively high irradiances for long periods of time., (© 2023 Phycological Society of America.)