32 research outputs found
Selective N-methylation of Primary Aliphatic Amines with Dimethyl Carbonate in the Presence of Alkali Cation Exchanged Y-Faujasites
Professional gamblers are more likely than amateur gamblers to meet criteria for problem gambling but minimal research has examined their gambling behavior and its con- sequences. This study compared gambling behavior, problem gambling symptoms, related harms, recognition, and help-seeking among problem semi/professional gamblers (PPGs/ PSPGs) and problem amateur gamblers (PAGs). Surveys completed by 57 self-identified professional gamblers, 311 semi-professional gamblers and 4226 amateur gamblers were analysed. PPGs/PSPGs were significantly more likely than PAGs to be male, younger, never married, speak a language other than English at home, and have higher psychological distress, compared to PAGs. PPGs/PSPGs were more likely to gamble more frequently onmany skills- based forms, but most also participated in several chance-based forms. PPGs’/PSPGs’ most common problematic gambling form was electronic gaming machines and they were more likely to have problems with sports betting than PAGs. Most PPGs/PSPGs reported coming out behind on all gambling forms over the previous year. PPGs/PSPGs weremore likely than PAGs to report chasing losses and numerous detrimental financial gambling consequences. This group’s self-identification as PPGs/PSPGs is clearly inaccurate and perhaps a means to avoid stigma, elevate status and support problem denial. PPGs/PSPGs may represent an extreme example of gamblers with erroneous cognitions and beliefswho lack the required discipline and skill to be successful professional gamblers. The findings identify a group of problem gamblers who may benefit from interventions to dispel their mistaken self-identity, and emphasize the need for more rigorous confirmation of professional gambler status in future research
Association between parent-infant interactions in infancy and disruptive behaviour disorders at age seven: a nested, case–control ALSPAC study
Background
Effective early intervention to prevent oppositional/conduct disorders requires early identification of children at risk. Patterns of parent-child interaction may predict oppositional/conduct disorders but large community-based prospective studies are needed to evaluate this possibility.
Methods
We sought to examine whether the Mellow Parenting Observational System (MPOS) used to assess parent-infant interactions at one year was associated with psychopathology at age 7. The MPOS assesses positive and negative interactions between parent and child. It examines six dimensions: anticipation of child’s needs, responsiveness, autonomy, cooperation, containment of child distress, and control/conflict; these are summed to produce measures of total positive and negative interactions. We examined videos from the Avon Longitudinal Study of Parents and Children (ALSPAC) sub-cohort who attended the ‘Children in Focus’ clinic at one year of age. Our sample comprised 180 videos of parent-infant interaction: 60 from infants who received a psychiatric diagnostic categorisation at seven years and 120 randomly selected controls who were group-matched on sex.
Results
A negative association between positive interactions and oppositional/conduct disorders was found. With the exception of pervasive developmental disorders (autism), an increase of one positive interaction per minute predicted a 15% (95% CI: 4% to 26%) reduction in the odds of the infant being case diagnosed. There was no statistically significant relationship between negative parenting interactions and oppositional/conduct disorders, although negative interactions were rarely observed in this setting.
Conclusions
The Mellow Parenting Observation System, specifically low scores for positive parenting interactions (such as Responsiveness which encompasses parental warmth towards the infant), predicted later psychiatric diagnostic categorisation of oppositional/conduct disorders
Mitochondrial physiology
As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery
International Society of Sports Nutrition Position Stand: Probiotics.
Position statement: The International Society of Sports Nutrition (ISSN) provides an objective and critical review of the mechanisms and use of probiotic supplementation to optimize the health, performance, and recovery of athletes. Based on the current available literature, the conclusions of the ISSN are as follows: 1)Probiotics are live microorganisms that, when administered in adequate amounts, confer a health benefit on the host (FAO/WHO).2)Probiotic administration has been linked to a multitude of health benefits, with gut and immune health being the most researched applications.3)Despite the existence of shared, core mechanisms for probiotic function, health benefits of probiotics are strain- and dose-dependent.4)Athletes have varying gut microbiota compositions that appear to reflect the activity level of the host in comparison to sedentary people, with the differences linked primarily to the volume of exercise and amount of protein consumption. Whether differences in gut microbiota composition affect probiotic efficacy is unknown.5)The main function of the gut is to digest food and absorb nutrients. In athletic populations, certain probiotics strains can increase absorption of key nutrients such as amino acids from protein, and affect the pharmacology and physiological properties of multiple food components.6)Immune depression in athletes worsens with excessive training load, psychological stress, disturbed sleep, and environmental extremes, all of which can contribute to an increased risk of respiratory tract infections. In certain situations, including exposure to crowds, foreign travel and poor hygiene at home, and training or competition venues, athletes' exposure to pathogens may be elevated leading to increased rates of infections. Approximately 70% of the immune system is located in the gut and probiotic supplementation has been shown to promote a healthy immune response. In an athletic population, specific probiotic strains can reduce the number of episodes, severity and duration of upper respiratory tract infections.7)Intense, prolonged exercise, especially in the heat, has been shown to increase gut permeability which potentially can result in systemic toxemia. Specific probiotic strains can improve the integrity of the gut-barrier function in athletes.8)Administration of selected anti-inflammatory probiotic strains have been linked to improved recovery from muscle-damaging exercise.9)The minimal effective dose and method of administration (potency per serving, single vs. split dose, delivery form) of a specific probiotic strain depends on validation studies for this particular strain. Products that contain probiotics must include the genus, species, and strain of each live microorganism on its label as well as the total estimated quantity of each probiotic strain at the end of the product's shelf life, as measured by colony forming units (CFU) or live cells.10)Preclinical and early human research has shown potential probiotic benefits relevant to an athletic population that include improved body composition and lean body mass, normalizing age-related declines in testosterone levels, reductions in cortisol levels indicating improved responses to a physical or mental stressor, reduction of exercise-induced lactate, and increased neurotransmitter synthesis, cognition and mood. However, these potential benefits require validation in more rigorous human studies and in an athletic population
Characteristics of Indigenous primary health care service delivery models: a systematic scoping review
Published online: 25 January 2018Background: Indigenous populations have poorer health outcomes compared to their non-Indigenous counterparts. The evolution of Indigenous primary health care services arose from mainstream health services being unable to adequately meet the needs of Indigenous communities and Indigenous peoples often being excluded and marginalised from mainstream health services. Part of the solution has been to establish Indigenous specific primary health care services, for and managed by Indigenous peoples. There are a number of reasons why Indigenous primary health care services are more likely than mainstream services to improve the health of Indigenous communities. Their success is partly due to the fact that they often provide comprehensive programs that incorporate treatment and management, prevention and health promotion, as well as addressing the social determinants of health. However, there are gaps in the evidence base including the characteristics that contribute to the success of Indigenous primary health care services in providing comprehensive primary health care. This systematic scoping review aims to identify the characteristics of Indigenous primary health care service delivery models. Method: This systematic scoping review was led by an Aboriginal researcher, using the Joanna Briggs Institute Scoping Review Methodology. All published peer-reviewed and grey literature indexed in PubMed, EBSCO CINAHL, Embase, Informit, Mednar, and Trove databases from September 1978 to May 2015 were reviewed for inclusion. Studies were included if they describe the characteristics of service delivery models implemented within an Indigenous primary health care service. Sixty-two studies met the inclusion criteria. Data were extracted and then thematically analysed to identify the characteristics of Indigenous PHC service delivery models. Results: Culture was the most prominent characteristic underpinning all of the other seven characteristics which were identified – accessible health services, community participation, continuous quality improvement, culturally appropriate and skilled workforce, flexible approach to care, holistic health care, and self-determination and empowerment. Conclusion: While the eight characteristics were clearly distinguishable within the review, the interdependence between each characteristic was also evident. These findings were used to develop a new Indigenous PHC Service Delivery Model, which clearly demonstrates some of the unique characteristics of Indigenous specific models.Stephen G. Harfield, Carol Davy, Alexa McArthur, Zachary Munn, Alex Brown and Ngiare Brow
Identification of confusable odours including wines: appropriate labels enhance performance
This study examined how the effectiveness of training people to identify confusable odour samples depends on the kind of label used in the task. In Experiments 1–3 participants were required to identify three compound odour samples (AX, BX and CX) containing a common element, Citral (X), using a multiple-choice test (A vs B vs C) on each trial. Participants given appropriate labels for the stimuli (Appropriate condition) performed better than participants who produced their own labels, but only in the first training block (Experiment 1). Participants given appropriate labels also performed better than participants trained to give inappropriate (Experiment 2) or irrelevant labels (Experiment 3). Subsequently, wine samples of similar discriminability to the compound odour samples (Experiment 4) were used as stimuli in the same kind of identification task. Novices were able to apply descriptors and grape names, e.g. ‘Shiraz’, at a level above chance (Experiment 5), but not as well as the Appropriate groups in Experiments 1–3. The procedure provides a measure of the degree to which a particular label or description is appropriate
Bet anywhere, anytime: an analysis of internet sports bettors\u27 responses to gambling promotions during sports broadcasts by problem gambling severity
Promotions for online sports betting during televised sports broadcasts are regularly viewed by millions of Australians, raising concerns about their impacts on vulnerable groups including at-risk and problem gamblers. This study examined whether responses to these promotions varied with problem gambling severity amongst 455 Australian Internet sports bettors participating in an online survey. Results indicated that young male Internet sports bettors are especially vulnerable to gambling problems, particularly if they hold positive attitudes to gambling sponsors who embed promotions into sports broadcasts and to the promotional techniques they use and this heightens the risk that alluring messages contribute to excessive gambling. As problem gambling severity increased, so too did recognition that these promotions have impacted negatively on their sports betting behaviour. Because a plethora of sports betting brands and promotions are now heavily integrated into sports coverage, social marketing efforts are needed to offset their persuasive appeal and counter the positive attitudes towards them that appear linked to excessive gambling amongst Internet sports bettors
Contrasting effects of gambling consumption and gambling problems on subjective wellbeing
Browne, M ORCiD: 0000-0002-2668-6229; Hing, N ORCiD: 0000-0002-2150-9784; Rockloff, M ORCiD: 0000-0002-0080-2690; Russell, AM ORCiD: 0000-0002-3685-7220Most research on gambling focuses on the negative consequences associated with excessive consumption, which implicitly leads to a reduction in health and wellbeing. However, few studies have measured subjective wellbeing with respect to gambling involvement, and almost none has attempted to distinguish the separate effects of consumption and problems. We used the Personal Wellbeing Index (PWI) in two surveys with different recruitment criteria. Study 1 (N = 1524, 50.6% female) was designed to compare differences in personal wellbeing among gamblers, and Study 2 (N = 1586, 70.2% female) compared wellbeing between gamblers and non-gamblers. Participants provided demographic information, and answered questions allowing them to be grouped into high/low levels of consumption, and problem gambling risk categories. After accounting for gambling problems, higher consumption was associated with higher wellbeing. Study 2 showed consistent results; revealing that both high and low consumption non-problem gamblers (NPGs) had higher personal wellbeing than non-gamblers. Nevertheless, the deleterious effect of gambling problems on wellbeing was larger than the effect of consumption. After accounting for population prevalence (i.e., per capita), only 15.3% of the negative influence of gambling problems on PWI was attributable to problem gamblers; the remainder associated with lower risk categories. Although results were consistent when controlling for demographic covariates, the positive link between consumption and wellbeing may be due to unmeasured variables such as personality traits, health, and socioeconomic status. Nevertheless, the assessment of subjective wellbeing provides a unique perspective on both the positive and negative effects of gambling
Who bets on micro events (microbets) in sports?
Browne, M ORCiD: 0000-0002-2668-6229; Hing, N ORCiD: 0000-0002-2150-9784; Russell, AM ORCiD: 0000-0002-3685-7220Sports betting is expanding globally through introduction into new markets and growth in existing markets. Traditionally, bets were placed on the outcome of a match before match commencement, with the outcome not determined for hours or even days. The advent of in-play betting has reduced the delay between bet and outcome. A controversial form of in-play betting is betting on micro events (micro-betting), where consumers bet on outcomes such as the next ball in cricket, or the next point in tennis, with the outcome determined almost immediately. This enables rapid, impulsive and continuous betting and may heighten the risk of problem gambling. We surveyed 1813 Australian sports bettors to determine demographic, behavioural and psychological characteristics of micro event bettors, and of those who place a higher proportion of their bets on micro events. Our two hypotheses were supported: that more highly engaged bettors, including those with gambling problems, are more likely to (1) bet on micro events, and (2) place more of their bets on micro events. Of those who bet on micro events, 78% met criteria for problem gambling, and only 5% non-problem gambling (vs 29% and 28% respectively for non micro event bettors). Placing a higher proportion of bets on micro events was also related to problem gambling. Micro event bettors were likely to: be younger, well educated and single; engaged in a wider variety of gambling activities; and to have high trait impulsivity. Micro event betting appears to appeal almost exclusively to bettors with gambling problems, so a ban would represent a highly targeted intervention to reduce gambling-related harm