171,246 research outputs found
Internet Gaming Research Group 3: Internet Gaming Disorder (IGD) Psychopathology & Culture: IGRG3: IGD, Psychopathology & Culture
No full textThe present data set involves online survey/scale data of anonymous/de-identified adult players of massively multiplayer online-role playing with residency in Australia, the USA, the UK, Canada, and New Zealand [N = 1032 Mage = 24, SDage = 7, males = 503 (48.7%), females = 529 (51.3%)]. The estimated maximum sampling error (at the 95% confidence interval) for 1032 participants is 3.11%. Participants provided informed consent for the use of the data for future research purposes by researchers other than the collection research team. Measures included in the present base involve: a)The Individualism and Collectivism Scale/Culture Orientation Scale (ICS; Triandis and Gelfand, 1998); b) The Depression Anxiety Stress Scale (DASS-21;Lovibond & Lovibond, 1995); c) The ADHD Self-Report Scale (ASRS; Kessler, 2005); d) The Internet Gaming Disorder Scale-Short Form (IGD9-SF; Pontes & Griffiths, 2015) and; e) socio-demographic and Internet Use/ Internet Gaming information
Ahead of the Game: Balancing the Gaming Industry and Public Interest
No full textBesides socio-demographic [i.e. age, gender, cultural background, family condition, romantic relationship involvement], game use information [i.e. daily playing time], the Internet Gaming Disorder Test - Short Form [IGD9-SF; reflecting the APA criteria] and the Gaming Disorder Test [GDT-4; reflecting the WHO criteria] for gaming disorder behaviours, participants addressed:
a) personality with the Mini-International Personality Item Pool [20 items]; b) depression and anxiety with the Depression Anxiety and Stress Scale [DASS 21 ];
c) cultural values with the Individualism and Collectivism Scale [ICS];
d) the experience of the game surrounding as real with the Presence Questionnaire [PQ];
e) the absorbance by the online activity with the Online Flow Questionnaire [OFQ];
f) the experience of the avatar as the physical, emotional and identity extension of one’s self with the Self-Presence Questionnaire [SPQ];
g) the level of identification, immersion and compensation through the avatar with User-Avatar-Questionnaire [UAQ];
h) how much the user behaves like the avatar in real-life with the Proteus Effect Scale [PES] and;
i) how fulfilling their communication within their family is with the Family Communication Scale [FCS]. Fitbit actigraphy also recorded total steps, distance moved in Kilometres, calorie expenditure, sleep duration, and active minutes for seven days surrounding the assessment
Gaming Research Group 2016: Internet Gaming Disorder Risk and Protective Factors 2016
No full textInternet Gaming Disorder (IGD) was introduced as a condition with significant consequences requiring further research (American Psychiatric Association-APA, 2013). This study assessed, over a maximum period of three months, a sample of 60 Australian/permanent residents, players of massively multiplayer online (MMO) games, aged between 18 to 29 years about their IGD behaviors. IGD behaviors have been shown to peak among MMO gamers within this age range, and are related to individual, family and gaming associated risk and protective factors (Kuss & Griffiths, 2012).The present study used a battery of questionnaires to assess psychopathological behaviors (i.e depression, anxiety, Attention Deficit and Hyperactivity symptoms) and personality traits as individual factors, family relationships (family cohesion) as a family factor. Additional measures were: the level that the gamer is absorbed by the game action (online flow), and the game context (presence) and the bond between the gamer and his figure of representation (avatar) in the game (user self-presence) as gaming patterns related to IGD behaviors. Physiological activity and sleep duration were additionally measured using a fitness tracker (wearable actograph-bracelet). Basic demographic (i.e. gender, age, relationship status) and internet use questions (i.e. daily time consumed online) were included. Participants were provided with a plain language information sheet (PLS) and informed of all information needed toconsent to the study. Participants were then invited to complete the survey (40 minutes approximately) and to wear the fitness tracker (three days per measurement). The data were collected either online (survey monkey/lime survey) or face to face across three time points, one month apart, and participants’ measures were matched through a re-identifiable code. The study looked at unveiling risk and protective (individual, family and gaming related) factors for IGD behaviors.
Procedure:
Inclusion criteria
18 to 29 years of age; players of massively multiplayer online (MMO) games, who were able and consent to: either a) attend three face to face assessment sessions onsite and carry a fitness tracker for 9 days (3 days per assessment point, one month apart, over three months) or: b) to complete an online assessment sessions without carrying a fitness tracker.
Exclusion criteria
Due to self-monitoring and the inclusion of the physical activity tracking, those meeting the following criteria were not able to participate: had a documented life threatening illnesses or brain injury, mobility issues or a current untreated severe mental illness. These was done through a brief face to face interview prior to the setup of the fitbit
Individuals interested received the Plain Language Information Statement (PLIS). If a person chose to participate they were then be required to provide informed consent (signing the consent form).
For physiological measurements, participants were provided with a fitness tracker (fitbit) to wear for three days (per assessment point). Fitness tracker data was collected through a unique online account referring to the device. The account was paired with an anonymous email address created by the information technology department of the University (i.e. [email protected]) where the data could be accessed. Each email address was assigned (randomly) to a different participant by the researchers.
For all other measurements, participants were required to attend onsite for an approximately (40) minute data collection session per time-point, wherein they had to fill in a battery of 12 (paper & pencil) questionnaires. Besides demographic and internet use information (17 items) and the Internet gaming disorder - short form 9 (9 items) (Pontes & Griffiths, 2015) to assess IGD behaviors, these included:
a. Assessing individual psychopathological factors associated to IGD: Beck depression inventory - second edition (21 items)(Beck, Steer & Brown, 1996), Beck anxiety inventory (Beck & Steer, 1990), Hikikomori-social withdrawal scale (5 items) (Teo et al., 2015), Attention Deficit Hyperactivity self-report scale (18 items) (Kessler et al., 2005) and the ten item personality inventory (Gosling, Rentfrow & Swann, 2003)
b. Assessing family factors associated to IGD, the family cohesion scale (7 items) (Olson, 2011),
c. Assessing gaming patterns associated to IGD: presence questionnaire (10 items) (Faiola, Newlon, Pfaff, & Smyslova, 2013), flow questionnaire (5 items) (Chen Wigand & Nilan, 2000), self-presence questionnaire (Ratan & Hasler, 2010) and the Gaming-Contingent Self-Worth Scale (12 items) (GCSW; Beard & Wickham, 2016).
d. in face to face collection the assessment process was repeated three times. Fitbit accounts were deleted at the end of the study
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Pseudomembranous trigonitis: A common but underrecognized urological entity
No full textPseudomembranous trigonitis is the term used to describe squamous metaplastic changes of the bladder trigone, which affect nearly 40 of adult females. We present the characteristics of this underrecognized clinical entity and encourage further relevant research. Copyright © 2010 M. Stavropoulos et al
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
Checking Monotone Boolean Duality with Limited Nondeterminism
No full textWe present an algorithm that checks the duality of a pair of monotone Boolean expressions in disjunctive normal form in polynomial time plus O(log² n/log log n) nondeterministic guesses, where n is the size of the input, thus improving a previous result of Kavvadias and Stavropoulos [IPL, 85(1):1-6, 2003] and Eiter et al. [STOC 2003] which placed the problem in co-NP[log² n], the subclass of co-NP where only the first O(log² n) steps are nondeterministic
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
The Apert and Crouzon syndromes: General and dental aspects
No full textBackground: Craniofacial malformations, as seen in Apert and Crouzon syndromes, may have an immense impact not only on function and esthetics, but also on the psychosocial well-being of the person affected.
Aims: To provide insight on the social life aspects of persons with Crouzon syndrome in Sweden, during the transition from childhood to adulthood and as young adults. Furthermore, to study the main facial and intraoral characteristics of persons with Apert or Crouzon syndrome, the clinical manifestations that may be present in addition to the main syndromic features, and the cranio-maxillofacial surgical treatment protocols followed. Finally, to investigate dental agenesis and dental agenesis patterns of permanent teeth in persons with these syndromes.
Material and Methods: Firstly, interviews according to the qualitative method of Grounded Theory were carried out. Eight persons with Crouzon syndrome participated. Then, 23 patients with Apert syndrome and 28 patients with Crouzon syndrome were evaluated for general aspects, craniofacial aspects, dentoalveolar traits before and after the final orthognathic surgery, types and timing of cranio-maxillofacial surgical operations. Finally, dental agenesis and dental agenesis patterns were studied in 26 persons with Crouzon syndrome and in 23 individuals with Apert syndrome by evaluation of serial panoramic radiographs.
Results and Conclusions: The analysis of the interviews revealed that persons with Crouzon syndrome had to face different obstacles when developing their self-image during the transition from childhood to adulthood. Young adults with Crouzon syndrome tried to make the best of their situation. Already from childhood, they developed various strategies that helped them to cope with their lives. Mental disability, associated additional malformations, cleft palate, and extensive lateral palatal swellings were more common in children with Apert syndrome. In both syndromes, clinical findings included concave profile, negative overjet, posterior crossbites, anterior openbite, and dental midline deviation, which were significantly improved in almost all instances after the final combined orthodontic and orthognathic surgical treatment. The only exception was the posterior crossbites, which were persisting in about half of the cases. Cranial vault decompression and/or reshaping, midfacial and orbital advancement procedures, often in conjunction with a mandibular set-back, were the most frequent cranio-maxillofacial operations performed in both of the syndromes investigated. The prevalence of agenesis for at least one tooth was 42.3% for the patients with Crouzon syndrome. The dental agenesis patterns showed a remarkable variability. The prevalence of agenesis for at least a tooth was 34.8% for the patients with Apert syndrome. Symmetrical and repetitive dental agenesis patterns were identified
A Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
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