Multiway Calibration Strategies in Laser-Induced Breakdown Spectroscopy: A Proposal.

In this study, a new approach to laser-induced breakdown spectroscopy (LIBS) data modeling using multiway algorithms was investigated. Two case studies, parallel factor analysis (PARAFAC) and unfolded-partial least-squares with residual bilinearization (U-PLS/RBL) algorithms were used in (1) the determination of Al, Cu, and Fe in samples of reference material of printed circuit board (PCB) from electronic waste and (2) the determination of Ca, K, and Mg in samples of a human mineral supplement, where depth was used to obtain multidimensional data in the first case and delay-time in the second. In addition, univariate calibration was applied and compared with the multiway approaches.

Use of home visits in pediatric severe asthma: randomized controlled trial.

Objective: To evaluate the effectiveness of home visits in a group of children and adolescents with severe asthma by using the inhalation technique score and adherence rates to drug treatment.

Method: A 12-month randomized controlled trial involving patients aged between three and 17 years under regular follow-up treatment at a pediatric pulmonology outpatient clinic of a university hospital in southeastern Brazil. A group of patients received only outpatient consultations and the other group received home visits from nurses in addition to outpatient consultations.

[Adolescence and asthma management: the perspective of adolescents receiving primary health care].

Objective:: To study the influence of adolescence characteristics on asthma management.

Methods:: This was a qualitative study conducted in the city of Divinópolis, Minas Gerais, Southeast Brazil. Data were collected through semistructured interviews guided by a questionnaire with seven asthmatic adolescents followed-up in the primary public health care service of the city.

[Prenatal care protocol: actions and the easy and difficult aspects dealt by Family Health Strategy nurses].

The objective of this study was to learn the perception that nurses have about the protocol of their attributions in prenatal care, identifying the health actions they develop, as well as the easy and difficult aspects in using the referred protocol. This qualitative study was developed with Family Health Strategy nurses in Divinópolis, Minas Gerais. The data survey was performed through interviews with five nurses.