Increasing wildfire impacts on snowpack in the western U.S.

Wildfire area has been increasing in most ecoregions across the western United States, including snow-dominated regions. These fires modify snow accumulation, ablation, and duration, but the sign and magnitude of these impacts can vary substantially between regions. This study compares spatiotemporal patterns of western United States wildfires between ecoregions and snow zones. Results demonstrate significant increases in wildfire area from 1984 to 2020 throughout the West, including the Sierra Nevada, Cascades, Basin and Range, and Northern to Southern Rockies. In the late snow zone, where mean annual snow-free date is in May or later, 70% of ecoregions experienced significant increases in wildfire area since 1984. The distribution of burned area shifted from earlier melt zones to later-melt snow zones in several ecoregions, including the Southern Rockies, where the area burned in the late snow zone during 2020 exceeded the total burned area over the previous 36 y combined. Snow measurements at a large Southern Rockies fire revealed that burning caused lower magnitude and earlier peak snow-water equivalent as well as an 18-24 d estimated advance in snow-free dates. Latitude, a proxy for solar radiation, is a dominant driver of snow-free date, and fire advances snow-free timing through a more-positive net shortwave radiation balance. This loss of snow can reduce both ecosystem water availability and streamflow generation in a region that relies heavily on mountain snowpack for water supply.

A Comparative Profile of Online, Offline, and Mixed-Mode Problematic Gamblers' Gambling Involvement, Motives, and HEXACO Personality Traits.

Few studies have compared gamblers who play in exclusively online (i.e., Internet-based), exclusively offline (i.e., land-based), and mixed-mode contexts. In studies that have compared these groups, mixed-mode gamblers have consistently exhibited the greatest susceptibility to problematic gambling. In order to expand the scope of previous research that has compared gamblers based on their preferred mode of play, and to improve understanding of mixed-mode gamblers' proneness to problematic gambling, a sample of gamblers who play in exclusively online, exclusively offline, and mixed-mode contexts were compared on indices of gambling involvement, motives, and personality traits. Results indicated that mixed-mode gamblers played a wider range of games, and reported higher problematic gambling severity scores, higher scores on enhancement and social gambling motive scales, and lower and higher honesty-humility and extraversion personality scores, respectively. Associations between gambling motives and personality traits are discussed in relation to the role that these characteristics might play in mixed-mode gamblers' increased risk of gambling-related harm.

Correlates of Gambling Behaviours Among Day Traders: Evidence from a National Study.

Although research examining the relationship between participation in financial speculation (e.g., purchasing penny stocks, shorting stocks, cryptocurrency trading, and day trading) is sparse, findings consistently indicate that engaging in speculative activities is associated with problematic gambling behaviour. For the present study, gamblers across Canada who had or had not also engaged in day trading were surveyed. A total of n = 467 day traders and n = 9,558 non-day traders were compared in terms of their sociodemographic backgrounds, gambling habits, primary gambling motives, and endorsement of gambling fallacies. Male gender, racial/ethnic minority status, higher educational attainment and income, not working or studying full- or part-time, participation in a larger number of gambling activities, and lower endorsement of coping motives were associated with day trading involvement. Furthermore, lower income, participation in a larger number of gambling activities, greater endorsement of gambling fallacies, and not showing a preference for either skill- or chance-based games predicted moderate-risk-to-problem gambling behaviour among day traders. This research provides insight into factors that may underlie day traders' susceptibility to experiencing gambling problems.

Self-Generated Motives of Social Casino Gamers.

Social casino games have achieved widespread popularity, and are accessed by more than 85 million people each day. Yet, why people play social casino games is largely unknown. To address this gap, an inductive approach was taken to better understand the motives for playing social casino games, as well as the motives for transitioning from social casino gaming to gambling and vice versa. To this end, 269 social casino gamers were asked to provide a ranked list of their motives for playing social casino games. Additionally, we asked participants their motivations for transitioning from gambling to social casino gaming (n = 202) or vice versa (n = 67). A total of 795, 605, and 201 unique responses describing motives for playing social casino games, transitioning from social casino gaming to gambling, and transitioning from gambling to social casino gaming, respectively, were analyzed using a thematic content analysis. The most frequently endorsed motive for playing social casino games was for enhancement (e.g., fun, challenge). Participants also noted playing to earn rewards, including money, and for social reasons. Several motives linked social casino game play to gambling. These included: to hone gambling-related 'skills', a desire to transition to gambling to win real money, and as a gambling harm-reduction strategy. Motives for playing social casino games did not differ significantly between those who first gambled and then transitioned to social casino gaming and vice versa, suggesting that once people begin playing social casino games, they have similar motives for continued engagement. The present study contributes to understanding the immense popularity of social casino games and their links to gambling.

Attentional Bias in Non-Smoking Electronic Cigarette Users: An Eye-Tracking Study.

INTRODUCTION: This study examined attentional bias (AB) to e-cigarette cues among a sample of non-smoking daily e-cigarette users (n = 27), non-smoking occasional e-cigarette users (n = 32), and control participants (n = 61) who did not smoke or use e-cigarettes. The possibility that e-cigarette users develop a transference of cues to traditional cigarettes was also examined. METHODS: AB was assessed using a free-viewing eye-gaze tracking methodology, in which participants viewed 180 pairs of images for 4 seconds (e-cigarette and neutral image, e-cigarette and smoking image, smoking and neutral image). RESULTS: Daily and occasional e-cigarette users attended to pairs of e-cigarette and neutral images equally, whereas non-users attended to neutral images significantly more than e-cigarette images. All three groups attended to e-cigarette images significantly more than smoking images, with significantly larger biases for e-cigarette users. There were no between-group differences in attention to pairs of smoking and neutral images. A moderation analysis indicated that for occasional users but not daily users, years of vaping reduced the bias toward neutral images over smoking images. CONCLUSIONS: Taken together, the results indicate that the e-cigarette users exhibit heightened attention to e-cigarettes relative to non-users, which may have implications as to how they react to e-cigarette cues in real-world settings. AB for e-cigarettes did not transfer to traditional cigarette cues, which indicates that further research is required to identify the mechanisms involved in the migration of e-cigarettes to traditional cigarettes. IMPLICATIONS: This study is the first attempt to examine attentional biases for e-cigarette cues among non-smoking current e-cigarette users using eye-gaze tracking. The results contribute to the growing literature on the correlates of problematic e-cigarette use and indicate that daily and occasional e-cigarette use is associated with attentional biases for e-cigarettes. The existence of attentional biases in e-cigarette users may help to explain the high rate of failure to quit e-cigarettes and provides support for the utility of attentional bias modification in the treatment of problematic e-cigarette use.

The Effect of Alcohol Cue Exposure on Tobacco-Related Cue Reactivity: A Systematic Review.

AIMS: To examine the effect of alcohol cue exposure on tobacco-related cravings, self-administration and other measures of tobacco-related cue reactivity. METHODS: We searched Medline, PsycINFO, Embase, CINAHL and Scopus from inception to May 2020 for articles reporting on a combination of cue reactivity (and/or cross-cue reactivity), alcohol use and tobacco consumption. A semi-quantitative analysis and study quality assessment were performed for the included articles. RESULTS: A total of 37 articles met our inclusion criteria and were included in the systematic review. Most studies (60%) reported that alcohol cue exposure increased tobacco cravings, but only 18% of studies reported that alcohol cue exposure resulted in an increase in ad libitum smoking. There was also substantial heterogeneity between studies due to differences in methodology related to alcohol cue exposure, measures of tobacco cravings, as well as variable participant and study characteristics. CONCLUSIONS: Alcohol cue exposure can increase cravings for tobacco. This has important implications for individuals who use both substances but are trying to quit one or both.

Transcarotid transcatheter aortic valve replacement with cerebral embolic protection.

There remains concern about the risk of stroke with transcarotid transcatheter aortic valve replacement (TAVR). We describe the use of the Sentinel cerebral protection device with transcarotid TAVR in a patient at high risk for embolic complications. Deployment of the Sentinel filter in the innominate artery accommodated the insertion of the TAVR device through the bovine aortic arch via the contralateral carotid artery. By adapting the "flip-n-flex" technique from our previous transaxillary TAVR experience, we performed left transcarotid TAVR with the Sentinel device in an ergonomic manner and achieved coaxial placement of the transcatheter valve. Inspection of the Sentinel filter after the case revealed captured embolic debris.

Indigenous Gambling and Problem Gambling in Canada.

The present study provides a profile of Canadian Indigenous gambling and problem gambling using the 2018 Canadian Community Health Survey (CCHS) (n = 23,952 adults; 1,324 Indigenous) and an online panel survey of 10,199 gamblers (n = 589 Indigenous). The relative popularity of different types of gambling was similar between Indigenous and non-Indigenous samples. However, there was higher Indigenous participation in electronic gambling machines (EGMs), bingo, instant lotteries, overall gambling and a higher rate of problem gambling (2.0% versus 0.5%). Variables predictive of Indigenous problem gambling were EGM participation, gambling fallacies, having a mental or substance use disorder, sports betting, and male gender. Compared to non-Indigenous problem gamblers, Indigenous problem gamblers had higher substance use and lower impulsivity. In general, variables predictive of Indigenous problem gambling were the same ones predictive of problem gambling in all populations, with elevated Indigenous problem gambling rates primarily being due to elevated rates of these generic risk factors. Many of these risk factors are modifiable. Particular consideration should be given to reducing the disproportionate concentration of EGMs in geographic areas having the highest concentration of Indigenous people and ameliorating the disadvantageous social conditions in this population that are conducive to mental health and substance use problems.

Gambling in Canada During the COVID Lockdown: Prospective National Survey.

The current study investigated the impact of the COVID pandemic lockdown on gambling and problem gambling in Canada. The AGRI National Project's online panel participants (N = 3449) provided baseline gambling data 6 months prior to the pandemic. Re-surveying this sample during the lockdown provided an opportunity to make quantitative comparisons of the changes. Nearly one-third of gamblers reported ceasing gambling altogether during the lockdown. For the continuing gamblers, quantitative data indicated significant decreases in gambling frequency, time spent in gambling sessions, money spent, and the number of game types played. Qualitative perceptions of changes in gambling were examined and the accuracy of these reports were not closely aligned with actual changes in gambling. Gambling platform was the only gambling engagement metric where increases were found with ~ 17% of the gambling sample migrating to online gambling during the lockdown. Although problem gambling within the sample generally declined, consistent with previous literature, it was also found that gambling online-among other biopsychosocial factors-was a significant predictor for classification as a problem gambler during the lockdown. COVID-specific influences on health, employment, leisure time and social isolation were moderately associated with problem gambling scores but were not independent predictors of changes in gambling engagement during lockdown. Future studies are required to assess if the pandemic related changes in gambling evidenced in this study remain stable, or if engagement reverts to pre-pandemic levels when the pandemic response allows for the re-opening of land-based gambling venues.

Responsible Gambling in Canada: An Analysis of the RG Check Patron Surveys.

This study analyzed the Responsible Gambling Check patron survey data from Canadian casinos and racinos collected from 2011-2019 (18,580 patrons and 75 venues). The results indicated increasing awareness and use over time of harm minimization tools among more frequent patrons. Despite these promising trends, it is concerning that a substantial percentage of gamblers are still unaware of the harm minimization tools available. Further, the actual impact of this awareness on responsible gambling behaviour is largely unknown. We suggest greater efforts are needed nation-wide to promote the awareness, utilization, and evaluation of these harm minimization tools.

Harm Minimization Training, Knowledge, and Behaviour of Canadian Casino Employees.

Casino employees regularly interact with problem and at-risk gamblers and thus have considerable potential to both prevent and reduce gambling-related harm. While harm minimization (HM) and responsible gambling (RG) are routinely espoused by the casino industry, the actual level of employee HM/RG training, knowledge, and behaviour is unknown. The present study investigated this issue in the Canadian context by examining employee surveys collected by the RG Check accreditation program (8,262 surveys from 78 Canadian casinos/racinos collected between 2011 and 2020). These surveys revealed that almost all casino employees receive HM/RG training, but the amount of training tends to be quite limited (one hour) except for supervisors, managers, and security personnel. Basic HM/RG knowledge among all employees appears adequate, although their understanding of probability is incomplete. The most important consideration is whether this training and knowledge translates into meaningful HM/RG behaviour towards patrons. The large majority of employees (83.1%) report engaging in at least one HM/RG interaction with a patron at some point during the course of their employment (median length of 4 to 9 years), with security personnel reporting the highest rates. However, the frequency, nature, and impact of these interactions is unknown.

Left Ventricular Unloading Is Associated With Lower Mortality in Patients With Cardiogenic Shock Treated With Venoarterial Extracorporeal Membrane Oxygenation: Results From an International, Multicenter Cohort Study.

BACKGROUND: Venoarterial extracorporeal membrane oxygenation (VA-ECMO) is increasingly used to treat cardiogenic shock. However, VA-ECMO might hamper myocardial recovery. The Impella unloads the left ventricle. This study aimed to evaluate whether left ventricular unloading in patients with cardiogenic shock treated with VA-ECMO was associated with lower mortality. METHODS: Data from 686 consecutive patients with cardiogenic shock treated with VA-ECMO with or without left ventricular unloading using an Impella at 16 tertiary care centers in 4 countries were collected. The association between left ventricular unloading and 30-day mortality was assessed by Cox regression models in a 1:1 propensity score-matched cohort. RESULTS: Left ventricular unloading was used in 337 of the 686 patients (49%). After matching, 255 patients with left ventricular unloading were compared with 255 patients without left ventricular unloading. In the matched cohort, left ventricular unloading was associated with lower 30-day mortality (hazard ratio, 0.79 [95% CI, 0.63-0.98]; P=0.03) without differences in various subgroups. Complications occurred more frequently in patients with left ventricular unloading: severe bleeding in 98 (38.4%) versus 45 (17.9%), access site-related ischemia in 55 (21.6%) versus 31 (12.3%), abdominal compartment in 23 (9.4%) versus 9 (3.7%), and renal replacement therapy in 148 (58.5%) versus 99 (39.1%). CONCLUSIONS: In this international, multicenter cohort study, left ventricular unloading was associated with lower mortality in patients with cardiogenic shock treated with VA-ECMO, despite higher complication rates. These findings support use of left ventricular unloading in patients with cardiogenic shock treated with VA-ECMO and call for further validation, ideally in a randomized, controlled trial.

A meta-analysis of transcarotid versus transfemoral transcatheter aortic valve replacement.

BACKGROUND: Carotid access has shown promise as an excellent delivery route for transcatheter aortic valve replacement (TAVR). We aimed to compare outcomes of transcarotid (TC) and transfemoral (TF) TAVR by conducting a search and analysis of the best evidence in the literature to shed light on its safety and effectiveness. METHODS: The PubMed/MEDLINE, Embase, and Cochrane library from inception to July 2020 were searched to identify articles reporting comparative data on TC versus TF approaches for TAVR. Patients' baseline characteristics and clinical outcomes were extracted from the articles and pooled for analysis. RESULTS: Five studies, including a total of 2470 patients, were included in the study with 1859 patients in the TF group and 611 patients in the TC group. The TC group had higher prevalence of peripheral vascular disease, while the patients in the TF group was older. Meta-analysis revealed that there was no significant differences between the two groups with regard to 30-day mortality (p = 0.09), stroke (p = 0.28), new dialysis (p = 0.58), major bleeding (p = 0.69), or pacemaker implantation (p = 0.44). The TF group had a higher incidence of vascular complications (3.9% vs. 2.3%; OR 2.22; 95% CI [1.13, 4.38]; p = 0.02). CONCLUSIONS: Compared with the TF approach, TC-TAVR is associated with comparable procedural and clinical outcomes. Our analysis found a lower rate of vascular complication in TC access compared with TF access. This supports consideration of such an alternative access when there are concerns over the feasibility of TF access.

Gambling and Problem Gambling in Canada in 2018: Prevalence and Changes Since 2002.

OBJECTIVE: The purpose of this study was to provide an updated profile of gambling and problem gambling in Canada and to examine how the rates and pattern of participation compare to 2002. METHOD: An assessment of gambling and problem gambling was included in the 2018 Canadian Community Health Survey and administered to 24,982 individuals aged 15 and older. The present analyses selected for adults (18+). RESULTS: A total of 66.2% of people reported engaging in some type of gambling in 2018, primarily lottery and/or raffle tickets, the only type in which the majority of Canadians participate. There are some significant interprovincial differences, with perhaps the most important one being the higher rate of electronic gambling machine (EGM) participation in Manitoba and Saskatchewan. The overall pattern of gambling in 2018 is very similar to 2002, although participation is generally much lower in 2018, particularly for EGMs and bingo. Only 0.6% of the population were identified as problem gamblers in 2018, with an additional 2.7% being at-risk gamblers. There is no significant interprovincial variation in problem gambling rates. The interprovincial pattern of problem gambling in 2018 is also very similar to what was found in 2002 with the main difference being a 45% decrease in the overall prevalence of problem gambling. CONCLUSIONS: Gambling and problem gambling have both decreased in Canada from 2002 to 2018 although the provincial patterns are quite similar between the 2 time periods. Several mechanisms have likely collectively contributed to these declines. Decreases have also been reported in several other Western countries in recent years and have occurred despite the expansion of legal gambling opportunities, suggesting a degree of inoculation or adaptation in large parts of the population.

High Rollers: Correlates of Problematic Cocaine Use Among a Community Sample of Gamblers.

Over half of problem gamblers (PGs; i.e., individuals with an impulse to gamble despite negative consequences) experience a substance use disorder. Explanations for this high rate of comorbidity have included shared clinical and personality factors. While gambling has been associated with substance use disorders in general, relatively few studies have examined the comorbidity of gambling and cocaine use disorders. The current study aimed to address this gap in the literature by comparing the demographic (age, gender, ethnicity, marital status, educational attainment, and employment status), gambling (time and money spent gambling, gambling severity, and motives for gambling), psychological (depression, anxiety, stress, alcohol consumption, nicotine dependency) and personality (trait impulsivity) correlates in a sample of community gamblers with varying degrees of cocaine use; never, recreational, and problematic use as measured by the WHO Alcohol, Smoking and Substance Involvement Screening Test Version 3 (ASSIST-V3.0). Of the 562 participants, 9.3% (N = 51), reported problematic cocaine use. No differences were found between groups for demographic factors. Problematic cocaine users (PCUs) were more likely to be PGs in comparison to recreational users, and never users. They also presented with increased levels of trait impulsivity, depression, anxiety, stress, and alcohol consumption. These results emphasize the need for increased focus on comorbidity and treatment approaches specifically tailored for individuals with PG and PCU.

Assessing the Relationship between Disordered Gamblers with Psychosis and Increased Gambling Severity: The Mediating Role of Impulsivity.

OBJECTIVE: Recent research suggests that disordered gambling and psychosis co-occur at higher rates than expected in the general population. Gamblers with psychosis also report greater psychological distress and increased gambling severity. However, the mechanism by which psychosis leads to greater gambling symptomology remains unknown. The objective of the present research was to test whether impulsivity mediated the relationship between comorbid psychosis and gambling severity. METHOD: The sample consisted of 394 disordered gamblers voluntarily seeking treatment at a large university hospital in São Paulo, Brazil. A semistructured clinical interview (Mini-International Neuropsychiatric Interview) was used to diagnosis the presence of psychosis by registered psychiatrists. Severity of gambling symptoms was assessed using the Gambling Symptom Assessment Scale, and the Barratt Impulsiveness Scale-11 provided a measure of impulsivity. RESULTS: Of the sample, 7.2% met diagnostic criteria for psychosis. Individuals with a dual diagnosis of psychosis did not report greater gambling severity. Conversely, dual diagnoses of psychosis were associated with greater levels of impulsivity. Higher levels of impulsivity were also associated with greater gambling severity. Importantly, support for our hypothesised mediation model was found such that impulsivity mediated the association between disordered gambling and psychosis and gambling severity. CONCLUSION: Impulsivity appears to be a transdiagnostic process that may be targeted in treatment among disordered gamblers with a dual diagnosis of psychosis to reduce problematic gambling behaviours.

The Categorical Stability of Gambling Motives Among Community-Recruited Gamblers: A Longitudinal Assessment.

Over the past decade, several motivational models have been proposed to explain the role of motives in gambling disorder. In the model captured by the four-factor Gambling Motives Questionnaire Financial (GMQ-F), gamblers are described as being primarily motivated to gamble for 'coping', 'enhancement', 'social', and 'financial' reasons. Although this model has received significant empirical support; to date, research assessing the role of motives in gambling disorder has been primarily cross-sectional in nature. Thus, the extent to which gambling motives remain stable over time has yet to be explored. In the current study, the stability versus fluidity of self-assessed gambling motives was investigated using the Quinte Longitudinal Study, a longitudinal dataset of gambling behaviour collected over 5 years. Gambling motives of 2795 gamblers were examined over all five annual assessments. The total proportion of gamblers who stayed in the same primary motive category across each of the 5 consecutive assessments was 22%, indicating substantial fluidity in category membership. Substantial movement between categories was seen for each GMQ-F group, as well as an additional group of non-classified motives. Logistic regression analyses suggest that greater resistance to gambling fallacies significantly predicted stability between the baseline assessment and a follow-up 1 year later, but gambling severity did not. Potential limitations in the study design and opportunities for future research are discussed.

Who Are the Anonymous? Involvement and Predictors of Gamblers Anonymous Attendance Among Disordered Gamblers Presenting for Treatment.

Gamblers Anonymous is the most widely available form of support for disordered gambling. Although chapters exist worldwide, knowledge of how attendees interact with the program is limited. The present study aimed to investigate involvement in Gamblers Anonymous among attendees, motives for attendance, and overall satisfaction with the program. Furthermore, potential gambling-related predictors of attendance versus deciding not to attend Gamblers Anonymous were investigated. A treatment-seeking sample of disordered gamblers (N = 512) from São Paulo, Brazil completed a series of self-report measures including an author-compiled Gamblers Anonymous survey. From the sample, 141 gamblers reported attending Gamblers Anonymous over the previous 30 days. An examination of involvement, satisfaction, and motives for attending Gamblers Anonymous was conducted, followed by regression analyses to assess predictors of attendance and satisfaction with the program. The majority of attendees (80%) reported some satisfaction with the program. The most common motive for attending Gamblers Anonymous was related to relapse prevention. Regression analyses revealed that greater gambling severity and number of days gambled were associated with not attending Gamblers Anonymous while giving testimonials was strongly related (OR = 6.18) to satisfaction with the program. The findings of this study contribute to the literature on Gamblers Anonymous. In particular, that members derive great satisfaction from the program and see it as a way to strengthen their abstinence goals. However, despite high satisfaction, the results also suggest that most members were passively involved in the program. More research that assesses the effectiveness of Gamblers Anonymous as either a stand-alone or adjunct treatment is needed.