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cp-abe based privacy-preserving user profile matching in mobile social networks.privacy-preserving profile matching, a challenging task in mobile social networks, is getting more attention in recent years. in this paper, we propose a novel scheme that is based on ciphertext-policy attribute-based encryption to tackle this problem. in our scheme, a user can submit a preference-profile and search for users with matching-profile in decentralized mobile social networks. in this process, no participant's profile and the submitted preference-profile is exposed. meanwhile, a secur ...201627337001
when words were wanted, but woefully wanting, we waged war with chess().what do you say to a child who rarely speaks? how do you work with such a youngster? what are the sine qua nons or guiding principles upon which analysts can draw? and, how do we know if we are being helpful? sam was 9-years when i began treating him. he was extremely withdrawn and rarely spoke more than a few words. instead, he mainly played chess. i did not know at first whether sam's taciturn demeanor was due to shyness, limited verbal abilities, or the stultifying effects of trauma. fortuito ...201628077845
the effect of bundling medication-assisted treatment for opioid addiction with mhealth: study protocol for a randomized clinical trial.opioid dependence has devastating and increasingly widespread consequences and costs, and the most common outcome of treatment is early relapse. people who inject opioids are also at disproportionate risk for contracting the human immunodeficiency virus (hiv) and hepatitis c virus (hcv). this study tests an approach that has been shown to improve recovery rates: medication along with other supportive services (medication-assisted treatment, or mat) against mat combined with a smartphone innovati ...201627955689
does rubella cause autism: a 2015 reappraisal?in the 1970s, stella chess found a high prevalence of autism in children with congenital rubella syndrome (crs), 200 times that of the general population at the time. many researchers quote this fact to add proof to the current theory that maternal infection with immune system activation in pregnancy leads to autism in the offspring. this rubella and autism association is presented with the notion that rubella has been eliminated in today's world. crs cases are no longer typically seen; yet, aut ...201626869906
managing the treatment of the patients with stable angina like a chess player: making moves considering the next move of atherosclerosis. 201628133474
"quorum non-sensing": social cheating and deception in vibrio cholerae.quorum sensing (qs) is widely used by bacteria to coordinate behavior in response to external stimuli. in vibrio cholerae, this process is important for environmental survival and pathogenesis, though, intriguingly, a large percentage of natural isolates are qs deficient. here, we show that qs-deficient mutants can spread as social cheaters by ceasing production of extracellular proteases under conditions requiring their growth. we further show that mutants stimulate biofilm formation and are ov ...201525819968
caffeinated forage tricks honeybees into increasing foraging and recruitment behaviors.in pollination, plants provide food reward to pollinators who in turn enhance plant reproduction by transferring pollen, making the relationship largely cooperative; however, because the interests of plants and pollinators do not always align, there exists the potential for conflict, where it may benefit both to cheat the other [1, 2]. plants may even resort to chemistry: caffeine, a naturally occurring, bitter-tasting, pharmacologically active secondary compound whose main purpose is to detract ...201526480843
evolutionary dynamics of interlinked public goods traits: an experimental study of siderophore production in pseudomonas aeruginosa.public goods cooperation is common in microbes, and there is much interest in understanding how such traits evolve. research in recent years has identified several important factors that shape the evolutionary dynamics of such systems, yet few studies have investigated scenarios involving interactions between multiple public goods. here, we offer general predictions about the evolutionary trajectories of two public goods traits having positive, negative or neutral regulatory influence on one ano ...201525421271
auditory memory function in expert chess players.chess is a game that involves many aspects of high level cognition such as memory, attention, focus and problem solving. long term practice of chess can improve cognition performances and behavioral skills. auditory memory, as a kind of memory, can be influenced by strengthening processes following long term chess playing like other behavioral skills because of common processing pathways in the brain. the purpose of this study was to evaluate the auditory memory function of expert chess players ...201526793666
perspectives from the field: certified health education specialists on the value of health education credentialing.in this commentary, four certified health education specialists (chess) share their reasons for obtaining national certification as health education specialists, the value of national credentialing to their employers, and the career development benefits of national commission for health education credentialing certification. chess play a vital role in diverse research and practice settings and increasingly contribute to changes in practice and policy that promote health equity. national commissi ...201526220281
can you treat the cheat in sports?this editorial examines the issue of "cheating" (broadly defined) in sports from youth through professional sports. we describe possible underlying causes focusing on the development of a "personality disorder" and psychiatric/psychodynamic needs (e.g. a pathological need to be the best). we detail treatment and management from a medical-psychiatric perspective as well as implications for coaches, teams, leagues and professional organizations (e.g. soccer, bicycling, etc). cheating behavior exis ...201526205610
cheat invasion causes bacterial trait loss in lung infections. 201526307760
successful organizational strategies to sustain use of a-chess: a mobile intervention for individuals with alcohol use disorders.mobile health (mhealth) services are growing in importance in health care research with the advancement of wireless networks, tablets, and mobile phone technologies. these technologies offer a wide range of applications that cover the spectrum of health care delivery. although preliminary experiments in mhealth demonstrate promising results, more robust real-world evidence is needed for widespread adoption and sustainment of these technologies.201526286257
a comparison of sexual health history and practices among monogamous and consensually nonmonogamous sexual partners.although consensually nonmonogamous (cnm) relationships are presumed to be far riskier for partners' sexual health compared with monogamous relationships, the disparity between them may be smaller than assumed. a growing body of research finds that many partners who have made monogamy agreements cheat, and when they do, they are less likely to practice safe sex than cnm partners.201526395880
the impacts of a go-game (chinese chess) intervention on alzheimer disease in a northeast chinese population.a go game can enhance mental health, but its effects on alzheimer disease (ad) remains unknown. to address the issue, 147 ad patients were randomly assigned into control (without go-game intervention), short-time go-game intervention (sggi, 1 h daily) and long-time go-game intervention (lggi, 2 h daily) groups. after 6-month follow-up, the game reduced the mean score of montgomery-asberg depression rating scales (madrs) of 4.72 (95% ci, 0.69 to 9.12) and hospital anxiety and depression scale (ha ...201526379544
the slow decay and quick revival of self-deception.people demonstrate an impressive ability to self-deceive, distorting misbehavior to reflect positively on themselves-for example, by cheating on a test and believing that their inflated performance reflects their true ability. but what happens to self-deception when self-deceivers must face reality, such as when taking another test on which they cannot cheat? we find that self-deception diminishes over time only when self-deceivers are repeatedly confronted with evidence of their true ability (s ...201526347666
a multimodal mri dataset of professional chess players.chess is a good model to study high-level human brain functions such as spatial cognition, memory, planning, learning and problem solving. recent studies have demonstrated that non-invasive mri techniques are valuable for researchers to investigate the underlying neural mechanism of playing chess. for professional chess players (e.g., chess grand masters and masters or gm/ms), what are the structural and functional alterations due to long-term professional practice, and how these alterations rel ...201526346238
chess from my father. 201526345346
spin-patterned plasmonics: towards optical access to topological-insulator surface states.topological insulators (ti) are new phases of matter with topologically protected surface states (ss) possessing novel physical properties such as spin-momentum locking. coupling optical angular momentum to the ss is of interest for both fundamental understanding and applications in future spintronic devices. however, due to the nanoscale thickness of the surface states, the light matter interaction is dominated by the bulk. here we propose and experimentally demonstrate a plasmonic cavity enabl ...201526699065
questions of fairness and anti-doping in us cycling: the contrasting experiences of professionals and amateurs.the focus of researchers, media and policy on doping in cycling is often limited to the professional level of the sport. however, anti-doping test results since 2001 demonstrate that banned substances are also used by us cyclists at lower levels of the sport, necessitating a broader view of the patterns and motivations of substance use within the sport. in this article, we describe and explain the doping culture that has emerged in domestic us cycling among amateur and semi-professionals. throug ...201526692658
making activity recognition robust against deceptive behavior.healthcare services increasingly use the activity recognition technology to track the daily activities of individuals. in some cases, this is used to provide incentives. for example, some health insurance companies offer discount to customers who are physically active, based on the data collected from their activity tracking devices. therefore, there is an increasing motivation for individuals to cheat, by making activity trackers detect activities that increase their benefits rather than the on ...201526659118
the world anti-doping code in sport: update for 2015.some athletes cheat by using drugs or medical methods such as transfusion to enhance their performance. however, this may put their health at risk. the world anti-doping agency prohibits certain methods and drugs that may enhance performance, harm the athlete or violate the spirit of sport. some may be banned only during competitions, but others are banned at all times. prohibited substances include over-the-counter and prescription medicines. it is therefore important for athletes and health pr ...201526648655
is age really cruel to experts? compensatory effects of activity.age-related decline may not be as pronounced in complex activities as it is in basic cognitive processes, but ability deterioration with age is difficult to deny. however, studies disagree on whether age is kinder to more able people than it is to their less able peers. in this article, we investigated the "age is kinder to the more able" hypothesis by using a chess database that contains activity records for both beginners and world-class players. the descriptive data suggested that the skill f ...201526523694
chess: an innovative concept for a new generation of population surveillance. 201526511039
uncontrolled web-based administration of surveys on factual health-related knowledge: a randomized study of untimed versus timed quizzing.health knowledge and literacy are among the main determinants of health. assessment of these issues via web-based surveys is growing continuously. research has suggested that approximately one-fifth of respondents submit cribbed answers, or cheat, on factual knowledge items, which may lead to measurement error. however, little is known about methods of discouraging cheating in web-based surveys on health knowledge.201525872617
taking the blame for someone else's wrongdoing: the effects of age and reciprocity.false confessions are often involved in wrongful convictions and are sometimes made to protect someone else (i.e., the guilty), perhaps as a way of reciprocating past favors. experimental research has neglected to investigate false confessions made to protect someone else, including among adolescents who may be particularly vulnerable given their peer orientation and sensitivity to peer influence. the present study examined (a) how often individuals would falsely confess to take the blame for an ...201525867105
cheating on the mutualistic contract: nutritional gain through seed predation in the frugivorous bat chiroderma villosum (phyllostomidae).most frugivorous bats are efficient seed dispersers, as they typically do not damage seeds and transport them over long distances. in contrast, bats of the phyllostomid genus chiroderma cheat fig trees by acting more as seed predators than as seed dispersers. the bats initially separate seeds from fruit pulp in the mouth. after extracting the juice from the fruit pulp, they thoroughly chew the seeds and spit out small seed fragments in a pellet. consequently, the faeces contain almost no viable ...201525833133
intellectual abilities in tuberous sclerosis complex: risk factors and correlates from the tuberous sclerosis 2000 study.tuberous sclerosis complex (tsc) is associated with intellectual disability, but the risk pathways are poorly understood.201525827976
association of distorted eating behaviors with cardiometabolic risk indices in preadolescents. the healthy growth study.the association between distorted eating behavior (deb) with cardiometabolic risk (cmr) in children has been poorly investigated. the aim of the study was to examine the association between deb with certain cmr indices in 9- to 13-year-old children in greece. a cross-sectional epidemiological study was conducted among 1803 schoolchildren from 77 primary schools in 4 counties of greece with full data on debq and cheat questionnaires and cmr indices. children underwent anthropometric measurements ...201525819605
security bound of cheat sensitive quantum bit commitment.cheat sensitive quantum bit commitment (csqbc) loosens the security requirement of quantum bit commitment (qbc), so that the existing impossibility proofs of unconditionally secure qbc can be evaded. but here we analyze the common features in all existing csqbc protocols, and show that in any csqbc having these features, the receiver can always learn a non-trivial amount of information on the sender's committed bit before it is unveiled, while his cheating can pass the security check with a prob ...201525796977
acute stimulant ingestion and neurocognitive performance in healthy participants.concussion management has become an area of great concern in athletics, and neurocognitive tests, such as immediate post-concussion assessment and cognitive testing (impact), are commonly used as management tools. given the restrictive nature of current management plans, anecdotal concerns have been raised about athletes trying to cheat the assessments and return to participation sooner. stimulants have been shown to improve neurocognitive measures similar to those used in impact. therefore, the ...201525793459
recall of briefly presented chess positions and its relation to chess skill.individual differences in memory performance in a domain of expertise have traditionally been accounted for by previously acquired chunks of knowledge and patterns. these accounts have been examined experimentally mainly in chess. the role of chunks (clusters of chess pieces recalled in rapid succession during recall of chess positions) and their relations to chess skill are, however, under debate. by introducing an independent chunk-identification technique, namely repeated-recall technique, th ...201525774693
rewarding smoking cessation in pregnancy-will women cheat to gain incentives? 201525771693
grounding cognitive-level processes in behavior: the view from dynamic systems theory.marr's seminal work laid out a program of research by specifying key questions for cognitive science at different levels of analysis. because dynamic systems theory (dst) focuses on time and interdependence of components, dst research programs come to very different conclusions regarding the nature of cognitive change. we review a specific dst approach to cognitive-level processes: dynamic field theory (dft). we review research applying dft to several cognitive-level processes: object permanence ...201525755203
[clinical, microbiological and evolutionary profile of patients experiencing failures and relapses of tuberculosis in ivory coast].multidrug-resistant tuberculosis (mdr-tb) is a major obsession for tb control. the main risk factor for mdr-tb remains a history of tb treatment especially bad conduct. the objective of this study is to describe the profile of patients in situations of failure and relapse of tuberculosis.201525681315
performance-enhancing drugs i: understanding the basics of testing for banned substances.whenever athletes willfully or accidentally ingest performance-enhancing drugs or other banned substances (such as drugs of abuse), markers of those drugs can be detected in biological samples (e.g., biofluids: urine, saliva, blood); in the case of some drugs, that evidence can be apparent for many weeks following the last exposure to the drug. in addition to the willful use of prohibited drugs, athletes can accidentally ingest banned substances in contaminated dietary supplements or foods and i ...201525675030
editorial: neural implementation of expertise. 201526483662
chess players' fame versus their merit.we investigate a pool of international chess title holders born between 1901 and 1943. using elo ratings, we compute for every player his expected score in a game with a randomly selected player from the pool. we use this figure as the player's merit. we measure players' fame as the number of google hits. the correlation between fame and merit is 0.38. at the same time, the correlation between the logarithm of fame and merit is 0.61. this suggests that fame grows exponentially with merit.201526478711
the effect of implicitly incentivized faking on explicit and implicit measures of doping attitude: when athletes want to pretend an even more negative attitude to doping.the implicit association test (iat) aims to measure participants' automatic evaluation of an attitude object and is useful especially for the measurement of attitudes related to socially sensitive subjects, e.g. doping in sports. several studies indicate that iat scores can be faked on instruction. but fully or semi-instructed research scenarios might not properly reflect what happens in more realistic situations, when participants secretly decide to try faking the test. the present study is the ...201525902142
teacher enthusiasm: a potential cure of academic cheating.in this research we claim that teachers' enthusiasm matters regarding student engagement in terms of academic cheating. previous studies found that perceived enthusiasm of teachers is positively related to the intrinsic motivation of the students. however, it was less investigated how perceived enthusiasm is related to cheating. in the first exploratory questionnaire study (n = 244) we found that during the exams of those teachers who are perceived to be enthusiastic students tend to cheat less. ...201525873903
eliciting promises from children reduces cheating.widespread cheating can undermine rules that are necessary for maintaining social order. preventing cheating can be a challenge, especially with regard to children, who as a result of their limited executive function skills may have particular difficulty with resisting temptation to cheat. we examined one approach designed to help children resist this temptation: eliciting a verbal commitment to not cheat. we tested 4- to 7-year-olds (total n = 330) and found that starting at 5 years of age, a v ...201526074407
overextension in verb conjunctions.hampton (1988) discovered that people are subject to overextension-they categorize some things as falling under a conjunction (e.g., they categorize chess as a sport which is also a game) but not as falling under both of the corresponding conjuncts (e.g., they do not categorize chess as a sport). although subsequent literature has replicated this effect with a wider range of constructions than those originally used by hampton, the research so far has been exclusively concerned with various forms ...201526052787
the health, education, and social care costs of school-aged children with active epilepsy: a population-based study.to provide data on the health, social care, and education costs of active childhood epilepsy and factors associated with these costs over an 18-month period in a population-based sample.201526040629
cheating at the end to avoid regret.how do people behave when they face a finite series of opportunities to cheat with little or no risk of detection? in 4 experiments and a small meta-analysis, we analyzed over 25,000 cheating opportunities faced by over 2,500 people. the results suggested that the odds of cheating are almost 3 times higher at the end of a series than earlier. participants could cheat in 1 of 2 ways: they could lie about the outcome of a private coin flip to get a payoff that they would otherwise not receive (stu ...201526030056
implementing an evidence-based breast cancer support and communication tool to newly diagnosed patients as standard care in two institutions.while many women turn to the internet to obtain health information, it is unlikely that unstructured internet use provides optimal benefit to women newly diagnosed with breast cancer, due to uneven quality, conflicting claims, redundancy, and search engine idiosyncrasies, which may make finding information and assessing its accuracy and applicability difficult. to answer the need for information and support, the comprehensive health enhancement support system (chess) was developed to provide acc ...201526029282
risk taking in adversarial situations: civilization differences in chess experts.the projections of experts in politics predict that a new world order will emerge within two decades. being multipolar, this world will inevitably lead to frictions where civilizations and states will have to decide whether to risk conflict. very often these decisions are informed if not taken by experts. to estimate risk-taking across civilizations, we examined strategies used in 667,599 chess games played over eleven years by chess experts from 11 different civilizations. we show that some civ ...201525912894
a statistical model of intra-chromosome contact maps.a statistical model describing a fine structure of the intra-chromosome maps obtained by a genome-wide chromosome conformation capture method (hi-c) is proposed. the model combines hierarchical chain folding with a quenched heteropolymer structure of primary chromatin sequences. it is conjectured that the observed hi-c maps are statistical averages over many different ways of hierarchical genome folding. it is shown that the existence of a quenched primary structure coupled with hierarchical fol ...201525521815
factors associated with quality of life in active childhood epilepsy: a population-based study.improving health-related quality of life (hrqol), rather than just reducing seizures, should be the principal goal in comprehensive management of childhood epilepsy. there is a lack of population-based data on predictors of hrqol in childhood epilepsy.201525596900
dealing with academic dishonesty: a redemptive approach.studies reveal that as many as 80% of college students cheat; over half do not think cheating is a serious transgression. developing integrity in nursing students is crucial, as their later actions impact patients' lives. how can educators foster academic integrity? two educators from a christian university relay how they approached a student's cheating and the transformative lessons they learned.201525585470
fat-subtracted three-dimensional time-of-flight mr angiography of the neck by use of fat-only images with the two-point dixon technique.for improvement of three-dimensional time-of-flight magnetic resonance angiography (3d-tof-mra) image quality in the neck, fat-subtracted mra by use of the two-point dixon technique was compared with conventional fat-suppressed mra techniques. three different types of neck 3d-tof-mra were obtained [minimum echo time (te) (1.9 ms), opposed-phase te (3.4 ms), and chemical shift selective fat suppression (chess) (te = 1.9 ms)] on five volunteers at 3.0 t. mra was obtained with subtraction of fat-on ...201525577234
sex-ratio meiotic drive and y-linked resistance in drosophila affinis.genetic elements that cheat mendelian segregation by biasing transmission in their favor gain a significant fitness benefit. several examples of sex-ratio meiotic drive, where one sex chromosome biases its own transmission at the cost of the opposite sex chromosome, exist in animals and plants. while the distorting sex chromosome gains a significant advantage by biasing sex ratio, the autosomes, and especially the opposite sex chromosome, experience strong selection to resist this transmission b ...201525571899
non-contrast-enhanced mr portography and hepatic venography with time-spatial labeling inversion pulses: comparison of imaging with the short tau inversion recovery method and the chemical shift selective method.to compare and evaluate images of non-contrast enhanced magnetic resonance (mr) portography and hepatic venography acquired with two different fat suppression methods, the chemical shift selective (chess) method and short tau inversion recovery (stir) method.201525159471
adaptive experiments with a multivariate elo-type algorithm.the present article introduces the multivariate elo-type algorithm (meta), which is inspired by the elo rating system, a tool for the measurement of the performance of chess players. the meta is intended for adaptive experiments with correlated traits. the relationship of the meta to other existing procedures is explained, and useful variants and modifications are discussed. the meta was investigated within three simulation studies. the gain in efficiency of the univariate elo-type algorithm was ...201524878597
rapid directed evolution of stabilized proteins with cellular high-throughput encapsulation solubilization and screening (chess).directed evolution is a powerful method for engineering proteins towards user-defined goals and has been used to generate novel proteins for industrial processes, biological research and drug discovery. typical directed evolution techniques include cellular display, phage display, ribosome display and water-in-oil compartmentalization, all of which physically link individual members of diverse gene libraries to their translated proteins. this allows the screening or selection for a desired prote ...201525220691
short-echo three-dimensional h-1 mr spectroscopic imaging of patients with glioma at 7 tesla for characterization of differences in metabolite levels.the purpose of this study was to evaluate the feasibility of using a short echo time, three-dimensional h-1 magnetic resonance spectroscopic imaging (mrsi) sequence at 7 tesla (t) to assess the metabolic signature of lesions for patients with glioma.201524935758
cheating among nursing students.how big a problem is cheating and plagiarism among students? in what ways do students cheat and plagiarize? are formal policies on cheating and plagiarism effective? the author discusses the results of a descriptive survey on this subject.20152352675
[treatment of depression by a combination of clomipramine and triiodothyronine].the clinical efficacy of a treatment with clomipramine (150 mg/day) associated with a daily dose of 50 micrograms of lt3 (cmi + lt3) compared to a treatment with clomipramine (150 mg/day) (cmi + placebo) for a period of 42 days has been examined in a pilot study, randomized in double-blind conditions, including 20 patients with a normal thyroid status, but presenting a major depressive syndrome (dsm iii). the minimum including score was 30 on the montgomery asberg scale (madrs). the patients wer ...20151669033
temperament as a predictor of behavior during initial dental examination in children.temperament refers to children's behavioral style, or the manner in which they interact with their environment. temperament has been quantified into nine temperament categories and five temperament constellations by thomas and chess. temperament categories and constellations of children can be measured using one of several parental questionnaires, each of which focuses on age-appropriate behavior. for this study the behavioral style questionnaire (bsq) was administered to the parents of 50 healt ...20158015953
cheating must be okay--everybody does it!cheating has been a part of structured academics since time immemorial. students cheat to pass a test, to pass a course, and to get better grades than others. they also cheat to obtain the benefits that better grades offer-scholarships, admission to graduate programs, recognition at ceremonies, and prestigious job offers. this article presents data obtained from a survey of nursing students and lists the measures taken to reduce cheating in the classroom.201511840063
[tolerability of tianeptine in 170 patients with depression treated during one year].tianeptine, a new antidepressant, has a tricyclic molecular structure. its main biochemical activity consists of an increase in the reuptake of 5 ht both in men and animals, after acute and chronic administration. tianeptine demonstrated its antidepressive clinical efficacy in several double-blind versus reference drug trials. a multicentre open trial, including depressed patients enabled us to evaluate the safety of tianeptine and to control the maintenance of the therapeutic efficacy in the co ...20142101783
learning curves in highly skilled chess players: a test of the generality of the power law of practice.the power law of practice holds that a power function best interrelates skill performance and amount of practice. however, the law's validity and generality are moot. some researchers argue that it is an artifact of averaging individual exponential curves while others question whether the law generalizes to complex skills and to performance measures other than response time. the present study tested the power law's generality to development over many years of a very complex cognitive skill, ches ...201424915472
use of the interrai chess scale to predict mortality among persons with neurological conditions in three care settings.persons with certain neurological conditions have higher mortality rates than the population without neurological conditions, but the risk factors for increased mortality within diagnostic groups are less well understood. the interrai chess scale has been shown to be a strong predictor of mortality in the overall population of persons receiving health care in community and institutional settings. this study examines the performance of chess as a predictor of mortality among persons with 11 diffe ...201424914546
motivational interviewing combined with chess accelerates improvement in executive functions in cocaine dependent patients: a one-month prospective study.in cocaine-dependent individuals, executive function (ef) deficits are associated with poor treatment outcomes. psychological interventions and pharmacological approaches have produced only modest effect sizes. to date, studies of this topic have been few and limited. the aim of this study was to examine the effects of a new model of intervention, which integrates chess and motivational interviewing, motivational chess (mc) methods: we evaluated 46 cocaine-dependent inpatients (aged 18-45), in t ...201424913200
performing private database queries in a real-world environment using a quantum protocol.in the well-studied cryptographic primitive 1-out-of-n oblivious transfer, a user retrieves a single element from a database of size n without the database learning which element was retrieved. while it has previously been shown that a secure implementation of 1-out-of-n oblivious transfer is impossible against arbitrarily powerful adversaries, recent research has revealed an interesting class of private query protocols based on quantum mechanics in a cheat sensitive model. specifically, a pract ...201424913129
cheating on examinations and its predictors among undergraduate students at hawassa university college of medicine and health science, hawassa, ethiopia.cheating on examinations in academic institutions is a worldwide issue. when cheating occurs in medical schools, it has serious consequences for human life, social values, and the economy. this study was conducted to determine the prevalence of cheating and identify factors that influence cheating among students of hawassa university college of medicine and health science.201424885973
expert vs. novice differences in the detection of relevant information during a chess game: evidence from eye movements.the present study explored the ability of expert and novice chess players to rapidly distinguish between regions of a chessboard that were relevant to the best move on the board, and regions of the board that were irrelevant. accordingly, we monitored the eye movements of expert and novice chess players, while they selected white's best move for a variety of chess problems. to manipulate relevancy, we constructed two different versions of each chess problem in the experiment, and we counterbalan ...201425202298
playing off the curve - testing quantitative predictions of skill acquisition theories in development of chess performance.learning curves have been proposed as an adequate description of learning processes, no matter whether the processes manifest within minutes or across years. different mechanisms underlying skill acquisition can lead to differences in the shape of learning curves. in the current study, we analyze the tournament performance data of 1383 chess players who begin competing at young age and play tournaments for at least 10 years. we analyze the performance development with the goal to test the adequa ...201425202292
developmental origins of recoding and decoding in memory.working memory is severely limited in both adults and children, but one way that adults can overcome this limit is through the process of recoding. recoding happens when representations of individual items are chunked together into a higher order representation, and the chunk is assigned a label. that label can then be decoded to retrieve the individual items from long-term memory. whereas this ability has been extensively studied in adults (as, for example, in classic studies of memory in chess ...201425195153
online support: impact on anxiety in women who experience an abnormal screening mammogram.to determine whether an online support tool can impact anxiety in women experiencing an abnormal mammogram.201425193424
checkmate to deliberate practice: the case of magnus carlsen. 201425177304
synchrotron x-ray footprinting on tour.synchrotron footprinting is a valuable technique in structural biology for understanding macromolecular solution-state structure and dynamics of proteins and nucleic acids. although an extremely powerful tool, there is currently only a single facility in the usa, the x28c beamline at the national synchrotron light source (nsls), dedicated to providing infrastructure, technology development and support for these studies. the high flux density of the focused white beam and variety of specialized e ...201424365913
drug dealers' rational choices on which customers to rip-off.drug dealers are infamous for overcharging customers and handing over less than owed. one reason rip-offs frequently occur is blackmarket participants have limited access to formal means of dispute resolution and, as such, are attractive prey. yet drug dealers do not cheat every customer. though this is implicitly understood in the literature, sparse theoretical attention has been given to which customers are ripped-off and why.201424360891
current issues in the evolutionary ecology of ant-plant symbioses.ant-plant symbioses involve plants that provide hollow structures specialized for housing ants and often food to ants. in return, the inhabiting ants protect plants against herbivores and sometimes provide them with nutrients. here, we review recent advances in ant-plant symbioses, focusing on three areas. first, the nutritional ecology of plant-ants, which is based not only on plant-derived food rewards, but also on inputs from other symbiotic partners, in particular fungi and possibly bacteria ...201424444030
elementary school children's cheating behavior and its cognitive correlates.elementary school children's cheating behavior and its cognitive correlates were investigated using a guessing game. children (n=95) between 8 and 12 years of age were asked to guess which side of the screen a coin would appear on and received rewards based on their self-reported accuracy. children's cheating behavior was measured by examining whether children failed to adhere to the game rules by falsely reporting their accuracy. children's theory-of-mind understanding and executive functioning ...201424464240
chess improves cancer caregivers' burden and mood: results of an ehealth rct.informal caregivers (family and friends) of people with cancer are often unprepared for their caregiving role, leading to increased burden or distress. comprehensive health enhancement support system (chess) is a web-based lung cancer information, communication, and coaching system for caregivers. this randomized trial reports the impact on caregiver burden, disruptiveness, and mood of providing caregivers access to chess versus the internet with a list of recommended lung cancer websites.201424245838
toward an evolutionary definition of cheating.the term "cheating" is used in the evolutionary and ecological literature to describe a wide range of exploitative or deceitful traits. although many find this a useful short hand, others have suggested that it implies cognitive intent in a misleading way, and is used inconsistently. we provide a formal justification of the use of the term "cheat" from the perspective of an individual as a maximizing agent. we provide a definition for cheating that can be applied widely, and show that cheats can ...201424131102
predictive modeling of addiction lapses in a mobile health application.the chronically relapsing nature of alcoholism leads to substantial personal, family, and societal costs. addiction-comprehensive health enhancement support system (a-chess) is a smartphone application that aims to reduce relapse. to offer targeted support to patients who are at risk of lapses within the coming week, a bayesian network model to predict such events was constructed using responses on 2,934 weekly surveys (called the weekly check-in) from 152 alcohol-dependent individuals who recen ...201424035143
fat signal suppression for coronary mra at 3t using a water-selective adiabatic t2 -preparation technique.to improve fat saturation in coronary mra at 3t by using a spectrally selective adiabatic t2 -prep (wsa-t2 -prep).201424285603
necessity is the mother of invention: video recording firsthand perspectives of critical medical procedures to make simulated training more effective.the traditional apprenticeship model for training doctors requires ample opportunities in the clinic for trainees to learn core procedures under the supervision of skilled doctors. in this issue, kyser and colleagues document that the learning opportunities for residents to master certain core procedures, such as forceps and vacuum deliveries, are insufficient in many teaching hospitals. to address this serious problem, this author argues that learning techniques (i.e., deliberate practice and s ...201424280862
gender differences in intellectual performance persist at the limits of individual capabilities.males predominate at the top in chess, and chess is a useful domain to investigate possible causes of gender differences in high achievement. opportunity, interest and extent of practice can be controlled for. organized chess has objective performance measures, extensive longitudinal population-level data and little gatekeeper influence. previous studies of gender differences in chess performance have not controlled adequately for females on average playing fewer rated games and dropping out at ...201423631890
exploring the use patterns of a mobile health application for alcohol addiction before the initial lapse after detoxification.how patients used addiction-comprehensive health enhancement support system (a-chess)1, a mobile health intervention, while quitting drinking is worthy exploring. this study is to explore a-chess use patterns prior to the initial lapse reported after discharge from inpatient detoxification programs. 142 patients with alcohol addiction from two treatment agencies in the u.s. were included. a comprehensive set of a-chess use measures were developed based on a three-level system use framework and t ...201425954342
x-ray structure, thermodynamics, elastic properties and md simulations of cardiolipin/dimyristoylphosphatidylcholine mixed membranes.cardiolipins (cls) are important biologically for their unique role in biomembranes that couple phosphorylation and electron transport like bacterial plasma membranes, chromatophores, chloroplasts and mitochondria. cls are often tightly coupled to proteins involved in oxidative phosphorylation. the first step in understanding the interaction of cl with proteins is to obtain the pure cl structure, and the structure of mixtures of cl with other lipids. in this work we use a variety of techniques t ...201424378240
prospective associations of parental smoking, alcohol use, marital status, maternal satisfaction, and parental and childhood body mass index at 6.5 years with later problematic eating attitudes.few studies have prospectively investigated whether early-life exposures are associated with pre-adolescent eating attitudes.201424394456
100% classification accuracy considered harmful: the normalized information transfer factor explains the accuracy paradox.the most widely spread measure of performance, accuracy, suffers from a paradox: predictive models with a given level of accuracy may have greater predictive power than models with higher accuracy. despite optimizing classification error rate, high accuracy models may fail to capture crucial information transfer in the classification task. we present evidence of this behavior by means of a combinatorial analysis where every possible contingency matrix of 2, 3 and 4 classes classifiers are depict ...201424427282
the burden of guilt: heavy backpacks, light snacks, and enhanced morality.drawing on the embodied simulation account of emotional information processing, we argue that the physical experience of weight is associated with the emotional experience of guilt and thus that weight intensifies the experience of guilt. across 4 studies, we found that participants who wore a heavy backpack experienced higher levels of guilt compared to those who wore a light backpack. additionally, wearing a heavy backpack affected participants' behavior. specifically, it led them to be more l ...201423398182
the daily life of students at alfredo pinto nursing school (1949 - 1956).to analyze students' strategies to adapt to the system established by the dean of alfredo pinto nursing school (1949-1956).201419229404
chess evolution visualization.we present a chess visualization to convey the changes in a game over successive generations. it contains a score chart, an evolution graph and a chess board, such that users can understand a game from global to local viewpoints. unlike current graphical chess tools, which focus only on highlighting pieces that are under attack and require sequential investigation, our visualization shows potential outcomes after a piece is moved and indicates how much tactical advantage the player can have over ...201426357293
expertise and the representation of space. 201424765081
effects of promoting longer-term and exclusive breastfeeding on childhood eating attitudes: a cluster-randomized trial.observational studies suggest that breastfeeding benefits later maternal child-feeding practices, which in turn may contribute to positive eating attitudes. we investigated the effect of a randomized intervention to increase duration and exclusivity of breastfeeding on pre-adolescent eating attitudes.201424706729
a smartphone application to support recovery from alcoholism: a randomized clinical trial.patients leaving residential treatment for alcohol use disorders are not typically offered evidence-based continuing care, although research suggests that continuing care is associated with better outcomes. a smartphone-based application could provide effective continuing care.201424671165
divorce and infidelity are associated with skewed adult sex ratios in birds.adult sex ratio (asr) is a fundamental concept in population demography, and recent theory suggests that asr plays a central role in social behavior, mating systems, and parental care. unbalanced asrs are predicted to influence pair-bond and mating behavior, since the rarer sex in the population has more potential partners to mate with than the more common sex. here we use phylogenetic comparative analyses to test whether asr is related to three major aspects of mating behavior: divorce, social ...201424656831
[postoperative radiation therapy for a patient with osteogenesis imperfecta: case report].osteogenesis imperfecta is an unusual disease also called lobstein disease. characterized by abnormalities of collagen biosynthesis, a possible mutation on 17th chromosome is described. on the other hand, 29% of breast cancers present a mutation on the same chromosome. nevertheless, the association of osteogenesis imperfecta and breast cancer is at the moment unknown. therapeutic management is very difficult because of a loss in dihydropyrimidine dehydrogenase for patients having osteogenesis im ...201424629322
near-realistic mobile exergames with wireless wearable sensors.exergaming is expanding as an option for sedentary behavior in childhood/adult obesity and for extra exercise for gamers. this paper presents the development process for a mobile active sports exergame with near-realistic motions through the usage of body-wearable sensors. the process begins by collecting a dataset specifically targeted to mapping real-world activities directly to the games, then, developing the recognition system in a fashion to produce an enjoyable game. the classification alg ...201424608050
the meaning of "significance" for different types of research [translated and annotated by eric-jan wagenmakers, denny borsboom, josine verhagen, rogier kievit, marjan bakker, angelique cramer, dora matzke, don mellenbergh, and han l. j. van der maas]. 1969.adrianus dingeman de groot (1914-2006) was one of the most influential dutch psychologists. he became famous for his work "thought and choice in chess", but his main contribution was methodological--de groot co-founded the department of psychological methods at the university of amsterdam (together with r. f. van naerssen), founded one of the leading testing and assessment companies (cito), and wrote the monograph "methodology" that centers on the empirical-scientific cycle: observation-inductio ...201424589374
diffusion-weighted echo-planar imaging of the head and neck using 3-t mri: investigation into the usefulness of liquid perfluorocarbon pads and choice of optimal fat suppression method.to investigate whether image quality can be improved using liquid perfluorocarbon pads (sat pad) and clarify the optimal fat-suppression method among chemical shift selective (chess), water excitation (wex), and short ti inversion recovery (stir) methods in diffusion-weighted imaging (dwi) of the head and neck using 3-t magnetic resonance imaging. correlations between results of visual inspection and quantitative analysis were also examined.201424582547
game playing.game playing has been a core domain of artificial intelligence research since the beginnings of the field. game playing provides clearly defined arenas within which computational approaches can be readily compared to human expertise through head-to-head competition and other benchmarks. game playing research has identified several simple core algorithms that provide successful foundations, with development focused on the challenges of defeating human experts in specific games. key developments i ...201426304308
functional organization of intrinsic connectivity networks in chinese-chess experts.the functional architecture of the human brain has been extensively described in terms of functional connectivity networks, detected from the low-frequency coherent neuronal fluctuations during a resting state condition. accumulating evidence suggests that the overall organization of functional connectivity networks is associated with individual differences in cognitive performance and prior experience. such an association raises the question of how cognitive expertise exerts an influence on the ...201424565926
disturbed eating tendency and related factors in grade four to six elementary school students in taiwan.this study investigated taiwanese elementary school students' status in terms of body size, body satisfaction and disturbed eating tendencies.201424561979
the geometry of expertise.theories of expertise based on the acquisition of chunk and templates suggest a differential geometric organization of perception between experts and novices. it is implied that expert representation is less anchored by spatial (euclidean) proximity and may instead be dictated by the intrinsic relation in the structure and grammar of the specific domain of expertise. here we set out to examine this hypothesis. we used the domain of chess which has been widely used as a tool to study human expert ...201424550869
flour pads: devices to improve chess fat suppression.we compared the suppression of lingering fat signals in chemical shift selective (chess) images by pads filled with flour and pads filled with rice in a phantom and human subjects.201424492741
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