: Total joint arthroplasty is projected to expand rapidly by 2030. With large numbers of patients undergoing TJA, the choice of incisional closure has come into question. We compared the 2-Ocyl cyanoacrylate closure system of Dermabond ® Prineo ® with Exofin Fusion ® to compare rates of adverse wound outcomes after total joint arthroplasty.
View Article and Find Full Text PDFContext: Symptomatic bone marrow lesions on MRI in patients with knee osteoarthritis are strongly associated with progressive deterioration of the joint and an increased risk of progression requiring joint replacement surgery. This study evaluates the efficacy of knee arthroscopy with adjunctive subchondroplasty (i.e.
View Article and Find Full Text PDFIntroduction: Cohesion within military teams is not only vital to their performance but also modulates the adverse impact of work stressors on mental health, including depression, distress, and morale. This study stems from previous findings concerning cohesion during recruit training in the Australian Army. In that study, ratings of cohesion clustered on three dimensions, namely horizontal bonding among team members, vertical bonding with leaders, and organizational bonding with the wider army.
View Article and Find Full Text PDFIntroduction: With the removal in 2016 of restrictions on recruiting women to the combat arms in the all-volunteer Australian Army, a key question has been whether adding women to small combat teams will reduce the sense of cohesion among their members, which entails their subjective bonds with each other, their leader, and wider organization. Despite recent initiatives in Australia and the USA, there are too few women in combat units in any country to answer this question and how these subjective bonds affect a team's ability to stick together under pressure.Men and women recruits in the Australian Army have undertaken basic soldier training in mixed-gender teams since 1995.
View Article and Find Full Text PDFIntroduction: In integrating women into combat roles, one key question has been whether women will reduce the cohesion of small teams, which is their ability to stick together and perform well under pressure. Among other things, team cohesion protects the mental health of military personnel during initial training as well in operational zones. To provide new converging evidence on the cohesion of all-male versus mixed-gender recruit teams at the end of training, cohesion ratings were obtained from both recruits and their instructors.
View Article and Find Full Text PDFIntroduction: Armed forces view their officers' character as foundational to their ability to lead the personnel entrusted to them. The character of junior officers is of particular interest, because they must increasingly make quick, morally-laden decisions while dispersed among civilians without time to consult their commanders. However, little is systematically known about the character of officers.
View Article and Find Full Text PDFThere is growing interest in young driver training that addresses age-related factors, including incompletely developed impulse control. Two studies investigated whether training of response inhibition can reduce risky simulated driving in young drivers (aged 16-24 years). Each study manipulated aspects of response inhibition training then assessed transfer of training using simulated driving measures including speeding, risky passing, and compliance with traffic controls.
View Article and Find Full Text PDFIntroduction: Although men and women recruits to the Australian Army have trained in mixed-gender platoons since 1995, restrictions on women joining the combat arms were only removed in 2016. As part of a longitudinal study starting with recruit training, this article examined recruit records collected before 2016 with the aims of delineating (1) the relative performance of women versus men in mixed-gender platoons and (2) the relative performance of men in mixed-gender platoons versus all-male platoons.
Materials And Methods: De-identified instructor ratings for 630 females and 4,505 males who completed training between 2011 and 2015 were obtained.
The risky driving of young drivers may owe in part to youthful motivations (such as experience-seeking, authority rebellion, desire for peer approval) combined with incompletely developed impulse control. Although self-reported impulsiveness has been positively associated with self-reports of risky driving, results based on objective measures of response inhibition (e.g.
View Article and Find Full Text PDFCivilian employees, contractors, and private community clinicians are increasingly providing health treatment to currently serving and former military personnel. This study addresses recent calls for evidence-based information to assist civilian practitioners in understanding the perspectives of their military clients. To this end, the self-reported character strengths of military personnel were elicited as an operationalized expression of their underlying personal values that shape their perspectives and conduct as soldiers.
View Article and Find Full Text PDFAustralian Army Special Forces (SF) applicants (N = 95) were asked to rank themselves on 24 character strengths at the start of the selection process. Across all applicants, the character strength of integrity was most frequently assigned a top-four rank (45%), followed by team worker (41%), persistence (36%), and love of learning (25%). Successful applicants assigned a top-four rank to team worker significantly more often than unsuccessful applicants (65% versus 32%).
View Article and Find Full Text PDFThe Muller F element (4.2 Mb, ~80 protein-coding genes) is an unusual autosome of Drosophila melanogaster; it is mostly heterochromatic with a low recombination rate. To investigate how these properties impact the evolution of repeats and genes, we manually improved the sequence and annotated the genes on the D.
View Article and Find Full Text PDFFor entry into the Australian Army Special Forces (SF), applicants undergo a barrage of strenuous physical and psychological assessments. Despite this screening, subsequent attrition rates in the first weeks of initial selection courses are typically high, and entry testing results have had limited success for predicting who will complete these courses. An SF applicant's character is often thought to be a decisive factor; however, this claim has remained untested.
View Article and Find Full Text PDFThe present experiment tested whether or not the time course of a conditioned eyeblink response, particularly its duration, would expand and contract, as the magnitude of the conditioned response (CR) changed massively during acquisition, extinction, and reacquisition. The CR duration remained largely constant throughout the experiment, while CR onset and peak time occurred slightly later during extinction. The results suggest that computational models can account for these results by using two layers of plasticity conforming to the sequence of synapses in the cerebellar pathways that mediate eyeblink conditioning.
View Article and Find Full Text PDFThis study tested whether cognitive hardiness moderates the adverse effects of deployment-related stressors on health and well-being of soldiers on short-tour (4-7 months), peacekeeping operations. Australian Army reservists (N = 448) were surveyed at the start, end, and up to 24 months after serving as peacekeepers in Timor-Leste or the Solomon Islands. They retained sound mental health throughout (Kessler 10, Post-Traumatic Checklist-Civilian, Depression Anxiety Stress Scale 42).
View Article and Find Full Text PDFIn postconflict zones, both aid and military personnel face chronic stress, including boredom, isolation, family separation, and difficult living conditions, plus the intra-organizational and interpersonal frictions found in all work settings. Australian Army reservists (N = 350) were surveyed during and after peacekeeping in the Solomon Islands. Most respondents reported having a positive experience (66%) and fewer reported their experience was neutral (16%) or negative (17%).
View Article and Find Full Text PDFRabbits were classically conditioned using compounds of tone and light conditioned stimuli (CSs) presented with either simultaneous onsets (Experiment 1) or serial onsets (Experiment 2) in a delay conditioning paradigm. Training with the simultaneous compound reduced the likelihood of a conditioned response (CR) to the individual CSs ("mutual overshadowing") but left CR timing unaltered. CR peaks were consistently clustered around the time of unconditioned stimulus (US) delivery.
View Article and Find Full Text PDFThe views and concerns of the employers of reservists sent on overseas deployments are largely unknown. A survey was conducted of 126 Australian employers who participated in Exercise Boss Lift sponsored by the Australian Defence Force, which involved a visit to their employees deployed on overseas service in the Solomon Islands and Malaysia during the period 2006-2010. Employers reported a substantial number of positive aspects of reservist deployment for both their enterprise and the individual reservist employee, including an increase in leadership, teamwork, skills, maturity, and confidence.
View Article and Find Full Text PDFThe temporal-difference (TD) algorithm from reinforcement learning provides a simple method for incrementally learning predictions of upcoming events. Applied to classical conditioning, TD models suppose that animals learn a real-time prediction of the unconditioned stimulus (US) on the basis of all available conditioned stimuli (CSs). In the TD model, similar to other error-correction models, learning is driven by prediction errors--the difference between the change in US prediction and the actual US.
View Article and Find Full Text PDFAustralian Army reservists (n=92) and a comparable group of regulars (n=90) were surveyed at the end of a 7-month deployment on a stability operation in Timor Leste and again approximately 6 months after returning to Australia. Both reservists and regulars displayed sound mental health, as measured by the K10 and PCL-C at both time points. Conversely, both groups reported only low levels of traumatic stress (Traumatic Stress Exposure Scale-Revised) and nontraumatic stress (Major Stressors Inventory).
View Article and Find Full Text PDFAccidents and incidents often occur, because a basic and seemingly simple rule is 'forgotten', either unintentionally (error, lapse) or with some degree of deliberate negligence (violation). The present experiment examined the utility of a rehearsal and a last-minute reminder in reducing the magnitude of deviations from an important safety rule by qualified, but relatively inexperienced pilots, specifically, remaining above an altitude of 500-ft. A single rehearsal flight entailing a search for a target on the ground increased the minimum altitude in later flights, but this positive effect did not completely generalize when the target on the ground was changed.
View Article and Find Full Text PDFTwo methods of metacognitive reflection for promoting compliance with an aviation safety rule were tested in a transfer design. Two groups of pilots (n = 10) conducted a simulated flight entailing a search for a target on the ground. During this flight, only 35% of the pilots stayed above an altitude of 500 ft, the minimum allowed by relevant regulations.
View Article and Find Full Text PDFUsing interstimulus intervals (ISIs) of 125, 250, and 500 msec in trace conditioning of the rabbit nictitating membrane response, the offset times and durations of conditioned responses (CRs) were collected along with onset and peak latencies. All measures were proportional to the ISI, but only onset and peak latencies conformed to the criterion for scalar timing. Regarding the CR's possible protective overlap of the unconditioned stimulus (US), CR duration increased with ISI, while the peak's alignment with the US declined.
View Article and Find Full Text PDFThe present experiment characterized conditioned nictitating membrane (NM) movements as a function of CS duration, using the full range of discernible movements (>.06 mm) rather than movements exceeding a conventional criterion (>.50 mm).
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