Editorial: Implausible discussions in saturated fat 'research'; definitive solutions won't come from another million editorials (or a million views of one).

The British Journal of Sports Medicine published an opinion editorial advocating a revision of public health guidance on saturated fat.1 Here, we offer a rebuttal, incorporating evidence-based principles absent in the original editorial, focusing on the quality of the evidence presented and we discuss contradictory evidence in relation to saturated fat, low-density lipoprotein cholesterol (LDL-C), specific dietary interventions and cardiovascular disease (CVD) alongside future directions

By design : negotiating flexible learning in the built environment discipline

The term ‘flexible education’ is now firmly entrenched within Australian higher education discourse, yet the term is a contested one imbued with a multiplicity of meanings. This paper describes a process designed to elucidate how the idea of flexible education can be translated into teaching models that are informed by the specific demands of disciplinary contexts. The process uses a flexible learning ‘matching’ tool to articulate the understandings and preferences of students and academics of the Built Environment to bridge the gap between student expectations of flexibility and their teacher’s willingness and ability to provide that flexibility within the limits of the pedagogical context and teaching resources. The findings suggest an informed starting point for educators in the Built Environment and other creative disciplines from which to traverse the complexities inherent in negotiating flexibility in an increasingly digital world

Validity of the Polar V800 heart rate monitor to measure RR intervals at rest

Purpose To assess the validity of RR intervals and short-term heart rate variability (HRV) data obtained from the Polar V800 heart rate monitor, in comparison to an electrocardiograph (ECG). Method Twenty participants completed an active orthostatic test using the V800 and ECG. An improved method for the identification and correction of RR intervals was employed prior to HRV analysis. Agreement of the data was assessed using intra-class correlation coefficients (ICC), Bland–Altman limits of agreement (LoA), and effect size (ES). Results A small number of errors were detected between ECG and Polar RR signal, with a combined error rate of 0.086 %. The RR intervals from ECG to V800 were significantly different, but with small ES for both supine corrected and standing corrected data (ES 0.999 for both supine and standing corrected intervals. When analysed with the same HRV software no significant differences were observed in any HRV parameters, for either supine or standing; the data displayed small bias and tight LoA, strong ICC (>0.99) and small ES (≤0.029). Conclusions The V800 improves over previous Polar models, with narrower LoA, stronger ICC and smaller ES for both the RR intervals and HRV parameters. The findings support the validity of the Polar V800 and its ability to produce RR interval recordings consistent with an ECG. In addition, HRV parameters derived from these recordings are also highly comparable

Pesquisa-ação

O objetivo deste artigo é fazer uma introdução à pesquisa-ação sob o aspecto de sua utilidade e das críticas a ela endereçadas. O trabalho discute o conceito de pesquisa-ação e suas características essenciais. Igualmente são apontadas as vantagens deste tipo de pesquisa e sua aplicação para a solução de problemas no ensino. Finalmente são ainda abordadas as fases de implementação de um projeto deste tipo de pesquisa

ELECTRIC BREAKDOWN AS A PROBABILITY PROCESS

ImportanceRecent estimates suggest that more than 26 million people worldwide have heart failure. The syndrome is associated with major symptoms, significantly increased mortality, and extensive use of health care. Evidence-based treatments influence all these outcomes in a proportion of patients with heart failure. Current management also often includes advice to reduce dietary salt intake, although the benefits are uncertain. ObjectiveTo systematically review randomized clinical trials of reduced dietary salt in adult inpatients or outpatients with heart failure. Evidence ReviewSeveral bibliographic databases were systematically searched, including the Cochrane Central Register of Controlled Trials, MEDLINE, Embase, and CINAHL. The methodologic quality of the studies was evaluated, and data associated with primary outcomes of interest (cardiovascular-associated mortality, all-cause mortality, and adverse events, such as stroke and myocardial infarction) and secondary outcomes (hospitalization, length of inpatient stay, change in New York Heart Association [NYHA] functional class, adherence to dietary low-salt intake, and changes in blood pressure) were extracted. FindingsOf 2655 retrieved references, 9 studies involving 479 unique participants were included in the analysis. None of the studies included more than 100 participants. The risks of bias in the 9 studies were variable. None of the included studies provided sufficient data on the primary outcomes of interest. For the secondary outcomes of interest, 2 outpatient-based studies reported that NYHA functional class was not improved by restriction of salt intake, whereas 2 studies reported significant improvements in NYHA functional class. Conclusions and RelevanceLimited evidence of clinical improvement was available among outpatients who reduced dietary salt intake, and evidence was inconclusive for inpatients. Overall, a paucity of robust high-quality evidence to support or refute current guidance was available. This review suggests that well-designed, adequately powered studies are needed to reduce uncertainty about the use of this intervention.</p

Eliciting human intelligence: police source handlers' perceptions and experiences of rapport during covert human intelligence sources (CHIS) interactions

Rapport is an integral part of interviewing, viewed as fundamental to the success of intelligence elicitation. One collection capability is human intelligence (HUMINT), the discipline charged with eliciting intelligence through interactions with human sources, such as covert human intelligence sources (CHIS). To date, research has yet to explore the perceptions and experiences of intelligence operatives responsible for gathering HUMINT within England and Wales. The present study consisted of structured interviews with police source handlers (N = 24). Rapport was perceived as essential, especially for maximising the opportunity for intelligence elicitation. Participants provided a range of rapport strategies while highlighting the importance of establishing, and maintaining, rapport. The majority of participants believed rapport could be trained to some degree. Thus, rapport was not viewed exclusively as a natural skill. However, participants commonly perceived some natural attributes are required to build rapport that can be refined and developed through training and experience

The impact of rapport on intelligence yield: police source handler telephone interactions with covert human intelligence sources

Covert Human Intelligence Sources (CHIS) provide unique access to criminals and organised crime groups, and their collection of intelligence is vital to understanding England and Wales’ threat picture. Rapport is essential to the establishment and maintenance of effective professional relationships between source handlers and their CHIS. Thus, rapport-based interviewing is a fundamental factor to maximising intelligence yield. The present research gained unprecedented access to 105 real-life audio recorded telephone interactions between England and Wales police source handlers and CHIS. This research quantified both the rapport component behaviours (e.g., attention, positivity, and coordination) displayed by the source handler and the intelligence yielded from the CHIS, in order to investigate the frequencies of these rapport components and their relationship to intelligence yield. Overall rapport, attention and coordination significantly correlated with intelligence yield, while positivity did not. Attention was the most frequently used component of rapport, followed by positivity, and then coordination

Source handler's perceptions of the interviewing process employed with Informants

The collection of accurate, detailed, and timely intelligence buttresses critical law enforcement decision-making. However, the quality and quantity of the intelligence gathered relies heavily upon the interviewing techniques that are used to retrieve it. The perceptions of intelligence practitioners are key to developing an understanding of practices concerning intelligence collection. Yet, to date, no research has been undertaken that explores the United Kingdom’s Source Handlers’ perceptions of the interviewing processes employed with informants. The present study interviewed 24 Source Handlers from Counter Terrorism Dedicated Source Units in the United Kingdom. Five themes emerged from the interviews, (i) a comparison between interviewing and debriefing; (ii) the PEACE model in intelligence interviews; (iii) the importance of effective communication; (iv) Source Handlers’ use of cognitive retrieval techniques; and, (v) Source Handler interview training. The perceived commonalities between interviewing and debriefing provided support for the transferability of investigative interviewing research and practices into the collection of Human Intelligence (HUMINT), reiterating themes (ii), (iii), and (iv). Finally, participants highlighted a need for additional training concerning intelligence gathering techniques, as police officers who are responsible for gathering HUMINT could benefit from further professional development based on investigative interviewing research and professional practices