keyword
MENU ▼
Read by QxMD icon Read
search

Contingency

keyword
https://www.readbyqxmd.com/read/28718986/the-effect-of-selection-history-on-extinction-risk-during-severe-environmental-change
#1
Josianne Lachapelle, Nick Colegrave, Graham Bell
Environments rarely remain the same over time, and populations are therefore frequently at risk of going extinct when changes are significant enough to reduce fitness. While many studies have investigated what attributes of the new environments and of the populations experiencing these changes will affect their probability of going extinct, limited work has been directed toward determining the role of population history on the probability of going extinct during severe environmental change. Here we compare the extinction risk of populations with a history of selection in a benign environment, to populations with a history of selection in one or two stressful environments...
July 18, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/28718520/putting-public-health-infrastructures-to-the-test-introducing-hpv-vaccination-in-austria-and-the-netherlands
#2
Katharina T Paul, Iris Wallenburg, Roland Bal
This article presents two cases of policymaking concerning the vaccine against Human Papilloma Virus (HPV), which is sexually transmitted and carcinogenic. Our analysis focuses on its introduction in Austria and the Netherlands. In both contexts, we find prevention and screening to be at once complementary and competing public health logics and we draw on the concept of 'infrastructure' to understand their roles in shaping the reception of the vaccine. We reveal how the HPV vaccine had to be made 'good enough', much like the Pap smear (Casper and Clarke ), by means of diverse tinkering practices that transformed both the technology and the infrastructures in which they emerged...
July 17, 2017: Sociology of Health & Illness
https://www.readbyqxmd.com/read/28717998/locust-displacing-winds-in-eastern-australia-reassessed-with-observations-from-an-insect-monitoring-radar
#3
Zhenhua Hao, V Alistair Drake, Leesa Sidhu, John R Taylor
Based on previous investigations, adult Australian plague locusts are believed to migrate on warm nights (with evening temperatures >25 °C), provided daytime flight is suppressed by surface winds greater than the locusts' flight speed, which has been shown to be 3.1 m s(-1). Moreover, adult locusts are believed to undertake briefer 'dispersal' flights on nights with evening temperature >20 °C. To reassess the utility of these conditions for forecasting locust flight, contingency tests were conducted comparing the nights selected on these bases (predicted nights) for the months of November, January, and March and the nights when locust migration were detected with an insect monitoring radar (actual nights) over a 7-year period...
July 17, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28717644/optimization-of-a-functionally-graded-material-stem-in-the-femoral-component-of-a-cemented-hip-arthroplasty-influence-of-dimensionality-of-fgm
#4
Abdellah Ait Moussa, Rohan Yadav
The longevity of hip prostheses is contingent on the stability of the implant within the cavity of the femur bone. The cemented fixation was mostly adopted owing to offering the immediate stability from cement-stem and cement-bone bonding interfaces after implant surgery. Yet cement damage and stress shielding of the bone were proven to adversely affect the lifelong stability of the implant, especially among younger subjects who tend to have an active lifestyle. The geometry and material distribution of the implant can be optimized more efficiently with a three-dimensional realistic design of a functionally graded material (FGM)...
2017: Journal of Medical Engineering
https://www.readbyqxmd.com/read/28717122/disentangling-environmental-and-spatial-effects-on-phylogenetic-structure-of-angiosperm-tree-communities-in-china
#5
Hong Qian, Shengbin Chen, Jin-Long Zhang
Niche-based and neutrality-based theories are two major classes of theories explaining the assembly mechanisms of local communities. Both theories have been frequently used to explain species diversity and composition in local communities but their relative importance remains unclear. Here, we analyzed 57 assemblages of angiosperm trees in 0.1-ha forest plots across China to examine the effects of environmental heterogeneity (relevant to niche-based processes) and spatial contingency (relevant to neutrality-based processes) on phylogenetic structure of angiosperm tree assemblages distributed across a wide range of environment and space...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28715476/spot-on-for-liars-how-public-scrutiny-influences-ethical-behavior
#6
Andreas Ostermaier, Matthias Uhl
We examine whether people are more honest in public than in private. In a laboratory experiment, we have subjects roll dice and report outcomes either in public or in private. Higher reports yield more money and lies cannot be detected. We also elicit subjects' ethical mindsets and their expectations about others' reports. We find that outcome-minded subjects lie less in public to conform with their expectations about others' reports. Ironically, these expectations are false. Rule-minded subjects, in turn, do not respond to public scrutiny...
2017: PloS One
https://www.readbyqxmd.com/read/28714728/functional-neural-changes-following-behavioral-therapies-and-disulfiram-for-cocaine-dependence
#7
Elise E DeVito, Guangheng Dong, Hedy Kober, Jiansong Xu, Kathleen M Carroll, Marc N Potenza
A growing literature exists on neural correlates of treatment outcome. However, different types-or components of-treatment have distinct theorized mechanisms of action. And it is not yet known how changes in neural activity across treatment relate to engagement in different treatment components. Participants with cocaine use disorders in a randomized clinical trial received cognitive-behavioral therapy (CBT) plus, in a 2 × 2 design, contingency management (CM) or no CM, and disulfiram or placebo. Participants performed a functional MRI Stroop task, a measure of cognitive control, at the beginning of and after the 12-week treatment...
July 17, 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/28714726/pilot-investigation-of-a-phosphatidylethanol-based-contingency-management-intervention-targeting-alcohol-use
#8
Michael G McDonell, Jordan Skalisky, Emily Leickly, Michael F Orr, Sterling McPherson, John Roll, Nathalie Hill-Kapturczak, Martin Javors
Phosphatidylethanol (PEth) can be detected in blood from 14 to as many as 28 days after alcohol consumption, depending on the amount and frequency of alcohol consumed. PEth may have utility for verifying abstinence in a contingency management (CM) intervention for alcohol use, particularly in settings where frequent verification of abstinence is impossible or impractical. Five nontreatment-seeking heavy drinkers (40% men) participated in an 11-week, ABA-phased within-subject experiment for which they submitted blood spots for PEth measurement, urine samples for ethyl glucuronide (EtG) testing, and self-report drinking data weekly...
July 17, 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/28714708/ethnic-identity-in-context-of-ethnic-discrimination-when-does-gender-and-other-group-orientation-increase-risk-for-depressive-symptoms-for-immigrant-origin-young-adults
#9
M Alexander Thibeault, Gabriela L Stein, Rosemery O Nelson-Gray
OBJECTIVES: Ethnic discrimination increases risk for depressive symptoms, but less is known about factors that influence the impact of this cultural challenge on psychological adjustment for immigrant-origin college students. Sociocultural identity development is especially relevant during emerging adulthood. Studies examining exacerbating or buffering impacts of ethnic identity have yielded mixed results. The current study examines conditions under which one aspect of ethnic identity, affirmation/belonging, moderates the impact of perceived ethnic discrimination stress on depressive symptoms...
July 17, 2017: Cultural Diversity & Ethnic Minority Psychology
https://www.readbyqxmd.com/read/28713315/the-moderating-effect-of-psychological-contract-violation-on-the-relationship-between-narcissism-and-outcomes-an-application-of-trait-activation-theory
#10
Thomas J Zagenczyk, Jarvis Smallfield, Kristin L Scott, Bret Galloway, Russell L Purvis
We use trait activation and psychological contracts theories to build the argument that narcissism is a personality trait that will manifest itself in the form of exit and neglect when employees experience psychological contract violation. To test our hypotheses, we surveyed 262 employees from a wide array of industries working in different organizations at two points in time. Our results indicate that violation moderated the relationship between narcissism and exit such that narcissistic employees who experienced high levels of violation had higher levels of exit...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28713088/-pathogenic-factors-of-regulatory-mechanisms-of-organism-adaptation-to-conditions-with-a-high-level-of-psychoemotional-load
#11
Oksana V Gorsha, Vasily I Gorsha
INTRODUCTION: The urgency of the issue is determined by the value of the stress impact of environmental conditions on workers of the operator personnel contingent, because the deterioration of their health and well-being is a factor in dangerous situations. However, the search for early diagnostic markers forming diseases, with a view to their prevention, is still a challenge. The aim was to establish the most important (among studied) pathogenetic factors of status of regulatory mechanisms of adaptation of individuals with a high level of psychoemotional load that is conditional upon profession...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28713029/successive-odor-matching-and-non-matching-to-sample-in-rats-a-reversal-design
#12
Katherine Bruce, Katherine Dyer, Michael Mathews, Catharine Nealley, Tiffany Phasukkan, Ashley Prichard, Mark Galizio
There is a growing body of research on matching- and non-matching-to-sample (MTS, NMTS) relations with rats using olfactory stimuli; however, the specific characteristics of this relational control are unclear. In the current study we examine MTS and NMTS in rats with an automated olfactometer using a successive (go, no-go) procedure. Ten rats were trained to either match- or non-match-to-sample with common scents (apple, cinnamon, etc.) as olfactory stimuli. After matching or non-matching training with four odorants, rats were tested for transfer twice with four new odorants on each test...
July 13, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28712692/volumetric-parameters-of-2-deoxy-2-18f-fluoro-d-glucose-positron-emission-tomography-computed-tomography-can-predict-histopathologic-treatment-response-after-neoadjuvant-chemoradiotherapy-in-pancreatic-adenocarcinoma
#13
Makoto Sakane, Mitsuaki Tatsumi, Masatoshi Hori, Hiromitsu Onishi, Takahiro Tsuboyama, Atsushi Nakamoto, Takashi Ota, Hidetoshi Eguchi, Kenichi Wakasa, Jun Hatazawa, Noriyuki Tomiyama
PURPOSE: The purpose of this study was to investigate the clinical potential of 2-deoxy-2-[18F]fluoro-d-glucose positron emission tomography/computed tomography (FDG PET/CT) to evaluate histopathologic effects of preoperative chemoradiotherapy (CRT) in pancreatic adenocarcinoma, with particular focus on volumetric PET/CT parameters. MATERIAL AND METHODS: This study included 25 patients with pancreatic adenocarcinoma who underwent radical surgery after gemcitabine- and S-1-based preoperative-CRT...
June 23, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28711521/a-comparison-of-resetting-and-nonresetting-contingencies-in-progressive-duration-schedules
#14
Morgan Valois, Sara Peck, Tom Byrne
We compared two progressive schedules of reinforcement in which rats received access to sweetened condensed milk for depressing and holding down a response lever. Duration requirements increased after each reinforcer delivery in a manner similar to progressive-ratio schedules. Under one schedule, any response duration less than that required for reinforcement had no programmed consequences. Under the second schedule, the cumulative duration of all responses could meet the reinforcement criteria. Breaking points were consistently higher when all lever presses, regardless of duration, contributed to meeting the reinforcer requirements...
July 12, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28711114/the-effects-of-training-contingency-awareness-during-attention-bias-modification-on-learning-and-stress-reactivity
#15
Amit Lazarov, Rany Abend, Shiran Seidner, Daniel S Pine, Yair Bar-Haim
Current attention bias modification (ABM) procedures are designed to implicitly train attention away from threatening stimuli with the hope of reducing stress reactivity and anxiety symptoms. However, the mechanisms underlying effective ABM delivery are not well understood, with awareness of the training contingency suggested as one possible factor contributing to ABM efficacy. Here, 45 high-anxious participants were trained to divert attention away from threat in two ABM sessions. They were randomly assigned to one of three training protocols: an implicit protocol, comprising two standard implicit ABM training sessions; an explicit protocol, comprising two sessions with explicit instruction as to the attention training contingency; and an implicit-explicit protocol, in which participants were not informed of the training contingency in the first ABM session and informed of it at the start of the second session...
September 2017: Behavior Therapy
https://www.readbyqxmd.com/read/28711111/to-do-or-not-to-do-task-control-deficit-in-obsessive-compulsive-disorder
#16
Eyal Kalanthroff, Avishai Henik, Helen Blair Simpson, Doron Todder, Gideon E Anholt
Task control is an executive control mechanism that facilitates goal-directed task selection by suppressing irrelevant automatic "stimulus-driven" behaviors. In the current study, we test the hypothesis that less efficient task control in individuals diagnosed with obsessive-compulsive disorder (OCD) is associated with OCD symptoms, and specifically, with the inability to inhibit unwanted behaviors in OCD. Thirty-five healthy controls, 30 participants with OCD, and 26 participants with generalized anxiety disorder (GAD) completed the object-interference (OI) task to measure task control, the stop-signal task to measure response inhibition, and the arrow-flanker task to evaluate executive abilities not contingent upon task control...
September 2017: Behavior Therapy
https://www.readbyqxmd.com/read/28709081/experiences-with-scramx-alcohol-monitoring-technology-in-100-alcohol-treatment-outpatients
#17
Sheila M Alessi, Nancy P Barnett, Nancy M Petry
BACKGROUND: Transdermal alcohol monitoring technology allows for new research on alcohol use disorders. This study assessed feasibility, acceptability, and adherence with this technology in the context of two clinical research trials. METHODS: Participants were the first 100 community-based alcohol treatment outpatients enrolled in randomized studies that monitored drinking with the secure continuous remote alcohol monitor (SCRAMx(®)) for 12 weeks. Study 1 participants were randomized to usual care (n=36) or usual care with contingency management incentives for treatment attendance (CM-Att; n=30)...
June 28, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28707782/exchanging-implements-the-micro-materialities-of-multidisciplinary-work-in-the-operating-theatre
#18
Christian Heath, Paul Luff, Marcus Sanchez-Svensson, Maxim Nicholls
Surgical procedures rely upon an array of commonplace tools, implements and materials that mediate practice and disciplinary collaboration within the operating theatre. Substantial time is dedicated to the issue and provision of these artefacts and their timely exchange is critical to the successful accomplishment of surgical procedures. In this article, we consider the practice, knowledge and agency that informs how particular implements and materials are passed by the scrub nurse to the surgeon that in turn enables their deployment with regard to the particular procedure and the contingencies 'at hand'...
July 14, 2017: Sociology of Health & Illness
https://www.readbyqxmd.com/read/28706989/inactivation-of-thermogenic-ucp1-as-a-historical-contingency-in-multiple-placental-mammal-clades
#19
Michael J Gaudry, Martin Jastroch, Jason R Treberg, Michael Hofreiter, Johanna L A Paijmans, James Starrett, Nathan Wales, Anthony V Signore, Mark S Springer, Kevin L Campbell
Mitochondrial uncoupling protein 1 (UCP1) is essential for nonshivering thermogenesis in brown adipose tissue and is widely accepted to have played a key thermoregulatory role in small-bodied and neonatal placental mammals that enabled the exploitation of cold environments. We map ucp1 sequences from 133 mammals onto a species tree constructed from a ~51-kb sequence alignment and show that inactivating mutations have occurred in at least 8 of the 18 traditional placental orders, thereby challenging the physiological importance of UCP1 across Placentalia...
July 2017: Science Advances
https://www.readbyqxmd.com/read/28705928/miniaturized-radiochemical-purity-testing-for-99m-tc-hmpao-99m-tc-hmdp-and-99m-tc-tetrofosmin
#20
Ana de la Fuente, Roberta Zanca, Angela Gabriella Cataldi, Roberto Boni, Martina Sollini, Elena Lazzeri, Giuliano Mariani, Paola Anna Erba
Quick methods are functional in clinical practice in order to ensure the fastest availability of radiopharmaceuticals. For this purpose, we investigated the radiochemical purity of the widely used (99m)Tc-HMDP (hydroxymethylene diphosphonate), (99m)Tc-HMPAO (hexamethylpropyleneamine oxime) and (99m)Tc-Tetrofosmin by reducing time as compared to the manufacturer's method. Methods: We applied a miniaturized chromatographic method with a reduced strip development from 18 cm to 9 cm for all three radiopharmaceuticals...
July 13, 2017: Journal of Nuclear Medicine Technology
keyword
keyword
112601
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"