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https://www.readbyqxmd.com/read/28650799/learning-the-personalized-intransitive-preferences-of-images
#1
Jun Chen, Chaokun Wang, Jianmin Wang, Xiang Ying, Xuecheng Wang
Most of the previous studies on the user preferences assume that there is a personal transitive preference ranking of the consumable media like images. For example, the transitivity of preferences is one of the most important assumptions in the recommender system research. However, the intransitive relations have also been widely observed, such as the win/loss relations in online video games, in sport matches, and even in rock-paper-scissors games. It is also found that different subjects demonstrate the personalized intransitive preferences in the pairwise comparisons between the applicants for college admission...
September 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28650786/alveolar-fracture-caused-by-tooth-extraction-at-home
#2
Fabrício Kitazono de Carvalho, Thaís Aparecida Xavier, Nicole Gonçalves Lima, Alexandra Mussolino de Queiroz, Marcilene Coelho Vinhorte, Paulo Nelson-Filho
Injuries to the teeth and surrounding structures are relatively common. Although traumatic injuries caused by falls or activities related to sports are widely discussed, the same cannot be said regarding accidents arising from non-professional extraction of primary teeth. The present study reports a 6-year-old male child who underwent mandibular alveolar bone fracture during non-professional extraction of his central lower left incisor at home, performed by his 30-year-old aunt. The root of the tooth was with an irregular physiological resorption, which acted as a lever component for the mechanical force applied, leading to bone fracture...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28650776/women-s-preferences-for-menstrual-bleeding-frequency-in-12-european-countries-the-inconvenience-due-to-women-s-monthly-bleeding-isy-survey
#3
Christian Fiala, Nathalie Chabbert-Buffet, Günther Häusler, Christian Jamin, Iñaki Lete, Paloma Lobo, Rossella E Nappi, Axelle Pintiaux
OBJECTIVES: Our aim was to assess the level of inconvenience associated with menstrual bleeding and determine how many women across 12 European countries would prefer a bleeding frequency of less than once a month and what would motivate their choice. METHODS: A 15-min quantitative online survey was conducted in two waves among 5728 women aged between 18 and 45 years, with an equal distribution of women using a combined hormonal contraceptive (CHC group, n = 2739) and women using a non-hormonal contraceptive or no contraceptive (non-HC group, n = 2989)...
June 26, 2017: European Journal of Contraception & Reproductive Health Care
https://www.readbyqxmd.com/read/28650763/posttraumatic-retronychia-of-the-foot-with-clinical-and-ultrasound-correlation
#4
Mariana Pizarro, Nicolás Pieressa, Ximena Wortsman
Retronychia, the posterior embedding of the nail bed into the proximal nail fold, can be a complex clinical dermatologic diagnosis that may mimic other inflammatory ungual diseases or tumors of the nail. It has been related to a history of severe systemic conditions that secondarily affect the nail matrix and is commonly associated with onychomadesis. We present a case of retronychia of the foot with a purely traumatic origin, nonconcomitant with onychomadesis, that was diagnosed by color Doppler ultrasound in a long-time practitioner of martial arts who was otherwise healthy...
May 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28650754/structural-changes-in-the-lower-extremities-in-boys-aged-7-to-12-years-who-engage-in-moderate-physical-activityan-observational-longitudinal-study
#5
Gabriel Gijon-Nogueron, Salvador Diaz-Miguel, Eva Lopezosa-Reca, Jose Antonio Cervera-Marin
BACKGROUND: Physical activity in children may provide health benefits. We sought to consider the practice of soccer as a possible major factor in the development of the lower limb. The study is based on 3-year data for a group of children who practice this sport. METHODS: For 3 years we monitored 53 children who practiced soccer 3 times a week and had engaged in 2 years of continuous sports activity. Their mean ± SD age was 8.49 ± 2.01 years in the first year...
May 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28650110/reproducibility-of-in-vivo-magnetic-resonance-imaging-t1-rho-and-t2-relaxation-time-measurements-of-hip-cartilage-at-3-0t-in-healthy-volunteers
#6
Angeline Nemeth, Lucy Di Marco, Florent Boutitie, Michael Sdika, Denis Grenier, Muriel Rabilloud, Olivier Beuf, Jean-Baptiste Pialat
PURPOSE: To assess the T1 ρ and T2 values in the hip cartilage of healthy volunteers and to evaluate the reproducibility of these measurements. MATERIALS AND METHODS: The right hip joint of 30 asymptomatic volunteers was explored with 3T magnetic resonance imaging (MRI). Quantitative 3D T1 ρ- and T2 -maps sequences were repeated twice with a 30-minute delay (immediate reproducibility). The same protocol was repeated 14 days later (short-term reproducibility). Immediate and short-term reproducibility were estimated using coefficients of variation and correlation concordance coefficients (CCC)...
June 26, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28649793/characteristics-of-acute-groin-injuries-in-the-hip-flexor-muscles-a-detailed-mri-study-in-athletes
#7
Andreas Serner, Adam Weir, Johannes L Tol, Kristian Thorborg, Frank Roemer, Ali Guermazi, Eduardo Yamashiro, Per Hölmich
Hip flexor injuries account for one third of acute groin injuries; however, little is known about specific injury characteristics. The aims of this study was to describe acute hip flexor injuries using magnetic resonance imaging (MRI) in athletes with acute groin pain, and to compare specific muscle injuries with reported injury situations. Male athletes with acute groin pain were prospectively and consecutively included during 3 sports seasons. MRI was performed within 7 days of injury using a standardized protocol and a reliable assessment approach...
June 26, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28648741/the-importance-of-dose-in-land-based-supervised-exercise-for-people-with-hip-osteoarthritis-a-systematic-review-and-meta-analysis
#8
REVIEW
Tuva Moseng, Hanne Dagfinrud, Geir Smedslund, Nina Østerås
PURPOSE: To compare effects of land-based exercise programmes with high versus low or uncertain compliance with dose recommendations among people with hip osteoarthritis (OA). DESIGN: A systematic review with meta-analyses of supervised exercise programmes in people with symptomatic hip OA was conducted. Dose of the exercise interventions was evaluated according to the American College of Sports Medicine's (ACSM) recommendations for developing and maintaining cardiorespiratory fitness, muscular strength and flexibility in healthy adults...
June 22, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28648554/the-isokinetic-rotator-cuff-strength-ratios-in-overhead-athletes-assessment-and-exercise-effect
#9
REVIEW
Kelly Berckmans, Annelies G Maenhout, Lien Matthijs, Louise Pieters, Birgit Castelein, Ann M Cools
OBJECTIVE: Muscle strength imbalance in the shoulder region can be considered as a predisposing factor in the development of movement dysfunctions, possibly leading to overuse injuries. Repetitive overhead throwing, performed in sports, may result in muscle imbalance between the external (ER) and internal (IR) rotators. Muscle strength measured with an isokinetic device, is reported as a concentric (CON) or eccentric (ECC) force. The balance between an agonist and an antagonist is mentioned as a ratio (CON/CON or ECC/CON)...
March 11, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28648245/great-british-medalists-response-to-the-commentaries
#10
Lew Hardy, Matthew Barlow, Lynne Evans, Tim Rees, Tim Woodman, Chelsea Warr
Hardy et al. (2017) reported the findings of a large-scale, multisource, qualitative study that examined the commonalities of, and discriminators between, a group of super-elite (SE) and a group of elite (E) athletes who were matched on gender, sport, discipline, and era. Fifteen research teams who are actively engaged in research in the domain then provided critical commentaries on the target paper. In our response to these commentaries, we briefly remind the reader of the primary findings of the original paper and then deal with the commentaries under the subheadings: Necessary and Sufficient Conditions for Elite Performance; Mediating and Moderating Variables; Methodological Issues; Omissions; and Alternative Approaches...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648243/a-culture-of-striving-augments-use-of-working-memory-implications-for-attention-control
#11
Tim Buszard, Rich S W Masters
A culture of striving was notable in the developmental background of many of the elite and super elite athletes in the Hardy et al. STUDY: Critically, a culture of striving was credited with a positive influence on a range of issues relevant to elite sports performance, including performance under pressure. Of the six athletes who did not reveal a culture of striving, five reported the greatest difficulty performing in high-pressure situations. We suspect that a culture of striving facilitates the development of attention control ability, which subsequently assists performance under pressure...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648242/super-elite-athletes-some-complimentary-observations-from-australia-and-some-lessons-for-sports-expertise-research-comment-on-hardy-et-al
#12
Damian Farrow
This commentary provides an Australian perspective through the lens of former Australian tennis players' reflections of their journey to becoming super/elite tennis players. Their observations are largely supportive of the findings of the target article. Further, the experimental design and terminology used in the target article are contextualized from the perspective of sports expertise research.
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648241/is-a-peaceful-mind-a-winning-mind-comment-on
#13
Li-Wei Zhang
This commentary on Hardy and colleagues' discussion of psychosocial biographies of British super-elite athletes discusses cultural differences from a Chinese perspective. While British super-elite athletes might cope with high pressure by a counter-phobic attitude or total preparation, Chinese super-elite athletes achieve that by "Pingchangxin," a concept originated from Hongzhou Buddhism. This concept is difficult to translate but includes having no evaluation of good and evil, maintaining a peaceful mind in adversity and frustration, letting nature take its course, so as to reach the realm of freedom...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648240/eventual-sport-performance-level-what-about-the-role-of-type-of-sport-perception-of-critical-life-events-and-practice-quality
#14
Tynke Toering
The target article describes an interesting study, which provides some challenging findings regarding athletes' pathway to excellence. The suggested links between critical life events, need for success, personal characteristics, and eventual performance level make sense from a psychodynamic perspective. This commentary will discuss some critical points related to the application of the findings in talent identification and -development programs. These are (1) the possible effect of the selection of participants on the results (including the impact of dependence on others for team sport athletes and the opportunity for multiple medal attainment), (2) a lack of detail in the description of how the athletes approached the critical life events (the perception of an event may contribute more to development than the event itself), and (3) a lack of detail in the description of the practice process throughout development...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648239/great-british-medalists-a-commentary-based-on-a-developmental-systems-theory-perspective
#15
Martin I Jones, Mark R Wilson
In their target article, Hardy and colleagues outline some psychosocial factors that were proposed to underpin the development of serial sporting champions. In this commentary, we suggest that the psychodynamic compensatory mechanisms model described by Hardy et al. is limited by its failure to consider the role of the broader developmental systems in which an individual exists (including funding structure, community, culture, and historical niche). We suggest that any workable talent development model needs to consider the bidirectional relationships between individuals and their contexts, and as such, should be guided by a more dynamic, developmental systems theory approach...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648237/adversity-related-experiences-are-essential-for-olympic-success-additional-evidence-and-considerations
#16
Mustafa Sarkar, David Fletcher
Drawing on Hardy et al.'s study as the target article, in this commentary, we focus on the adversity-related experiences and consequences of the Olympic and/or World champions that they sampled. With this in mind, we divide the narrative into two main sections. In the first section, we explore the association between adversity-related experiences and Olympic success, and provide additional evidence in support of the notion that adversity-related experiences are essential for success at the highest level of sport...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648234/in-search-of-the-golden-skill
#17
John W Krakauer
Athletes devote their lives to practicing their chosen sport so as to attain the highest level of skilled performance. A perennial question is why are some athletes better than others? Most debates on this issue reduce to genetics (natural abilities) vs differences in accumulated deliberative practice. In contrast, the target article under discussion here reports on a study that identified psychosocial factors (obsessiveness, ruthlessness) and early life experiences (trauma or loss) that distinguished those athletes at the Olympics and World Championships that medaled over those that did not...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648233/assessing-risk-factors-for-athletic-excellence
#18
Kielan Yarrow
Hardy et al. present a qualitative interview study to identify differences between elite and super-elite athletes, but their approach closely parallels the case-control methodology developed and discussed primarily within the epidemiological literature. The strengths and weaknesses of this approach may be less familiar to a psychological or sports-science audience. Here, I comment on this methodological choice and the implications it has for the robustness and value of the inferences that are drawn. I conclude that while Hardy et al...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648230/the-psychosocial-development-of-world-class-athletes-additional-considerations-for-understanding-the-whole-person-and-salience-of-adversity
#19
Daniel F Gucciardi
In the target article, Hardy and colleagues provided an incisive analysis of retrospectively reported psychosocial factors associated with the development and careers of 32 former athletes from Olympic sports. They found that Super-Elite athletes ("serial" medal winners at major international championships, i.e., World Championship or Olympic Games) differed from matched Elite performers (won medals at international competitions but not major championships) with regard to several important psychosocial factors (e...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648228/great-british-medalists-psychosocial-biographies-of-super-elite-and-elite-athletes-from-olympic-sports
#20
Lew Hardy, Matthew Barlow, Lynne Evans, Tim Rees, Tim Woodman, Chelsea Warr
Participants were 32 former GB athletes from Olympic sports, 16 Super-Elite athletes who had won multiple medals at major championships, and 16 matched Elite athletes who had not. In-depth interviews with the athletes, their coaches, and one of their parents explored all psychosocial aspects of their development and careers. Content analyses revealed that there were no differences between Super-Elite and Elite athletes with regard to family values, conscientiousness, or commitment to training. However, the two groups were found to be different with regard to: (1) the experience of a foundational negative life event coupled with a foundational positive sport-related event; (2) the experience of a career turning point that enhanced motivation and focus for their sport; (3) need for success; (4) obsessiveness and/or perfectionism with regard to training and performance; (5) ruthlessness and/or selfishness in the pursuit of their sporting goals; (6) dual focus on both mastery and outcome; (7) the use of counterphobic attitudes and/or total preparation to maintain higher levels of performance under pressure; and (8) the relative importance of sport over other aspects of life...
2017: Progress in Brain Research
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