This article opens by reviewing the state of the knowledge on the most current worldwide facts about suicide in older people. Next, a number of values that have a role in this problem are considered. Having a clear and current understanding of suicide and of the related self-held and social values forms the framework for a number of clinical–ethical recommendations for care practice. An important aspect of caring for older people with suicidal tendencies is to determine whether their primary care (...) fosters self-esteem and affirms their dignity. In addition to providing a timely and appropriate diagnosis and treatment of suicidality, the caregiver is responsible for helping the patient to cope with stressful conditions, and for treating the patient with respect and consideration, thereby supporting the patient’s dignity and giving the patient a reason to live. Paying attention to these central points will foster caring contact with suicidal older people. (shrink)

We present the system SUBSEXPL used for simulating and comparing explicit substitutions calculi. The system allows the manipulation of expressions of the λ-calculus and of three different styles of explicit substitutions: the λσ, the λse and the suspension calculus. A variation of the suspension calculus, which allows for combination of steps of β-contraction is included too. Implementations of the η-reduction are provided for each style. Other explicit substitutions calculi can be easily incorporated into the system due to its modular structure. (...) The uses of the system include: the visualization of the contractions of the λ-calculus in de Bruijn notation, and of guided one-step reductions as well as normalization via each of the associated substitution calculi. Many useful facilities are included: reductions can be easily recorded as text files, LATEX outputs can be generated and several examples for dealing with arithmetic operations and computational operators such as conditionals and repetitions in the λ-calculus are available. The system can be executed over Emacs using the x-symbol mode in such a way that λ-terms and terms of the explicit substitutions calculi are represented in its natural syntax avoiding the necessity of repeatedly generating LATEX outputs. The system has been of great help for systematically comparing explicit substitutions calculi, as well as for understanding properties of explicit substitutions such as the Preservation of Strong Normalization. In addition, it has been used for teaching basic properties of the λ-calculus such as: computational adequacy, the usefulness of de Bruijn's notation and of making explicit substitutions in real implementations. (shrink)

BackgroundWhen conducting research with Indigenous populations consent should be sought from both individual participants and the local community. We aimed to search and summarise the literature about methods for seeking consent for research with Indigenous populations.MethodsA systematic literature search was conducted for articles that describe or evaluate the process of seeking informed consent for research with Indigenous participants. Guidelines for ethical research and for seeking consent with Indigenous people are also included in our review.ResultsOf 1447 articles found 1391 were excluded (...) ; 56 were relevant and included. Articles were categorised into original research that evaluated the consent process or publications detailing the process of seeking consent and guidelines for ethical research. Guidelines were categorised into international ; national and state/regional/local guidelines. In five studies based in Australia, Canada and The United States of America the consent process with Indigenous people was objectively evaluated. In 13 other studies interpreters, voice recording, videos, pictures, flipcharts and “plain language” forms were used to assist in seeking consent but these processes were not evaluated. Some Indigenous organisations provide examples of community-designed resources for seeking consent and describe methods of community engagement, but none are evaluated. International, national and local ethical guidelines stress the importance of upholding Indigenous values but fail to specify methods for engaging communities or obtaining individual consent. In the ‘Grey literature’ concerns about the consent process are identified but no solutions are offered.ConclusionConsultation with Indigenous communities is needed to determine how consent should be sought from the community and the individual, and how to evaluate this process. (shrink)

Researchers are required to seek consent from Indigenous communities prior to conducting research but there is inadequate information about how Indigenous people understand and become fully engaged with this consent process. Few studies evaluate the preference or understanding of the consent process for research with Indigenous populations. Lack of informed consent can impact on research findings. The Picture Talk Project was initiated with senior Aboriginal leaders of the Fitzroy Valley community situated in the far north of Western Australia. Aboriginal people (...) were interviewed about their understanding and experiences of research and consent processes. Transcripts were analysed using NVivo10 software with an integrated method of inductive and deductive coding and based in grounded theory. Local Aboriginal interpreters validated coding. Major themes were defined and supporting quotes sourced. Interviews with Aboriginal leaders were facilitated by a local Aboriginal Community Navigator who could interpret if necessary and provide cultural guidance. Participants were from all four major local language groups of the Fitzroy Valley; aged 31 years and above; and half were male. Themes emerging from these discussions included Research—finding knowledge; Being respectful of Aboriginal people, Working on country, and Being flexible with time; Working together with good communication; Reciprocity—two-way learning; and Reaching consent. The project revealed how much more there is to be learned about how research with remote Aboriginal communities should be conducted such that it is both culturally respectful and, importantly, meaningful for participants. We identify important elements in community consultation about research and seeking consent. (shrink)

We present an experimental test of the validity of the Pauli Exclusion Principle for electrons based on the concept put forward a few years ago by Ramberg and Snow. In this experiment we perform a very accurate search of X-rays from the Pauli-forbidden atomic transitions of electrons in the already filled 1S shells of copper atoms. Although the experiment has a simple structure, it poses deep conceptual and interpretational problems. Here we describe the experimental method and recent experimental results, which (...) we interpret as an upper limit for the probability to violate the Pauli Exclusion Principle. We present also future plans to upgrade the experimental apparatus using Silicon Drift Detectors. (shrink)

This volume answers the question: Why do we believe what we believe? It examines current research on the concept of beliefs, and the development in our understanding of the process of believing. It takes into account empirical findings in the field of neuroscience regarding the processes that underlie beliefs, and discusses the notion that beyond the interactive exploratory analysis of sensory information from the complex outside world, humans engage in an evaluative analysis by which they attribute personal meaning and relevance (...) to the probabilistic representations of objects and events. Beliefs exert a strong influence on behaviour, decision-making, and identifying and solving problems. Despite their importance, beliefs have until recently not been at the centre of scientific interest. In fact, "belief" is an ill-defined phenomenon. From a transdisciplinary perspective the actual approaches to understanding belief seem incompatible as they attempt to highlight such different topics as "belief - religion", "belief - spirituality", "belief - faith", "belief - knowledge", "belief - attitude", "belief - disbelief", "belief - illusion", and "believing - brain function". This situation contradicts the idea that belief is close to pathological phenomena and that it should be eliminated from scientific discussions. Rather, believing is fundamental for understanding the many problems of every-day life. In fact, the book shows that beliefs are relevant for politics, international affairs, economy, law, or religions also in modern societies. This book presents the increasing scientific interest in beliefs and believing, and reflects the change in focus from the content aspect of belief towards the fluid nature of believing. (shrink)

The consent and community engagement process for research with Indigenous communities is rarely evaluated. Research protocols are not always collaborative, inclusive or culturally respectful. If participants do not trust or understand the research, selection bias may occur in recruitment, affecting study results potentially denying participants the opportunity to provide more knowledge and greater understanding about their community. Poorly informed consent can also harm the individual participant and the community as a whole. Invited by local Aboriginal community leaders of the Fitzroy (...) Valley, the Kimberley, Western Australia, The Picture Talk project explores the consent process for research. Focus groups of Aboriginal community members were conducted to establish preferences for methods of seeking individual consent. Transcripts were analysed through NVivo10 Qualitative software using grounded theory with inductive and deductive coding. Themes were synthesised with quotes highlighted. Focus groups with Aboriginal community members were facilitated by a Community Navigator as a cultural guide and interpreter and a researcher. Participants were recruited from all main language groups of the Fitzroy Valley – Gooniyandi, Walmajarri, Wangkatjungka, Bunuba and Nikinya. Participants were aged ≥18 years, with 5 female groups and one male group. Themes identified include: Reputation and trust is essential; The Community Navigator is key; Pictures give the words meaning – milli milli versus Pictures; Achieving consensus in circles; Signing for consent; and Research is needed in the Valley. Aboriginal communities of the Fitzroy Valley recommend that researchers collaborate with local leaders, develop trust and foster a good reputation in the community prior to research. Local Aboriginal researchers should be employed to provide cultural guidance throughout the research process and interpret local languages especially for elders. Pictures are preferred to written text to explain research information and most prefer to sign for consent. The Fitzroy Valley welcomes research when collaborative and for the benefit of the community. Future research could include exploring how to support young people, promote health screening and improve understanding of medical knowledge. (shrink)

It is argued that (1) the alleged violation of the auspices by both the Consuls of 249 B. C. did in fact occur and (2) resulted in separate prosecutions directed at each of them; (3) the name ‘Pullius’, reported for one of the plebeian Tribunes that prosecuted P. Claudius Pulcher, is probably authentic; (4) the cognomen of L. Iunius Pullus is not spun out the violation of the auspices attributed to him and his colleague; and (5) the cognomen ‘Pulcher’, first (...) born by the Consul of 249, may actually derive from his drowning of the Chickens. (shrink)

It is generally believed that Polybios mistook L. Iunius Pullus (cos. 249) for one of the consuls of 248 B. C. The internal evidence of Polybios’ narrative shows clearly that he knew the correct year of Iunius’ consulship, and inadvertently created a false impression of the date by structuring his account so as to tell the story of the Roman siege of Lilybaeum without interruption, from its inception in 250 to Claudius Pulcher’s defeat at Drepana in the following year. This (...) narrative objective led him to postpone the paragraph (1.52.4-5) detailing the Roman reaction to the disastrous siege operations of 250 and the consular elections for 249 until after his account of Drepana, without considering how such an arrangement could mislead readers two millenia hence. (shrink)

The effect of uniform lighting on face identity processing is little understood, despite its potential influence on our ability to recognize faces. Here, we investigated how changes in uniform lighting level affected face identification performance during face memory tests. Observers were tasked with learning a series of faces, followed by a memory test where observers judged whether the faces presented were studied before or novel. Face stimuli were presented under uniform bright or dim illuminations, and lighting across the face learning (...) and the memory test sessions could be the same or different. This led to four experimental conditions: Bright/Dim ; Bright/Bright; Dim/Bright; and Dim/Dim. Our results revealed that incongruent lighting levels across sessions significantly reduced sensitivity to faces and introduced conservative biases compared to congruent lighting levels. No significant differences in performance were detected between the congruent lighting conditions and between the incongruent lighting conditions. Thus, incongruent lighting deteriorated performance in face identification. These findings implied that the level of uniform lighting should be considered in an illumination-specific face representation and potential applications such as eyewitness testimony. (shrink)

We present the idea of searching for X-rays as a signature of the mechanism inducing the spontaneous collapse of the wave function. Such a signal is predicted by the continuous spontaneous localization theories, which are solving the “measurement problem” by modifying the Schrödinger equation. We will show some encouraging preliminary results and discuss future plans and strategy.