scholarly journals Assessment of spontaneous eye blink rate in online livestream videogame players

2021 ◽  
Vol 11 (1) ◽  
pp. 11-14

Introduction: The normal blink rate for humans is between 12 and 15 blinks per minute (bpm). Screen use has been associated with decreased blink rate and increased percentage of incomplete blinks, however, little is known about the effects of videogaming on blink rate. The purpose of this study was to assess the blink rate of online livestream video game players. Methods: A total of 30 livestream video gamers across YouTube, Twitch, and Facebook Gaming were selected for this study. Video gamers were characterized by gender and whether or not they were wearing glasses. Blink rate was observed for 5 minutes and defined as a complete closure of the ocular surface. Descriptive statistics and linear regression were used to determine significance (p<0.05) between variables. All analyses were conducted using RStudio (version 1.3.1056; RStudio, Inc). Results: The study population comprised of 30 video game players (50% men). The mean (standard deviation [SD]) blink rate of the total study population was 14.79 (8.79) bpm. Compared to male gamers, female gamers had a higher mean blink rate, however this was not statistically significant (17.07 vs. 12.51, p=0.16). A total of 3 (10%) video game players wore glasses. The difference in blink rate between video game players wearing and not wearing glasses was not statistically significant (14.07 vs 14.87, p=0.88). Conclusions: The average blink rate of select livestream video game players was observed to be within the range of normal spontaneous blink rates. The observed blink rate between male and female gamers did not differ. More research in controlled environments would help to elucidate the blink rate and patterns of video game players

Author(s):  
Eka R Gunardi

Objective: To obtain informations regarding the profile of contraceptive users in Raden Saleh Clinic, Jakarta. Method: A cross-sectional study was conducted in June 2012, at Raden Saleh Clinic, Jakarta. The study population was the patient who came to Raden Saleh Clinic from 2008 until 2011. Results: The mean age of the contraception users was 34.06 and the mean of their husband’s age was 38.91 years old. Most of the patients were graduated from senior high school (43.2%) and university (37.9%). More than half of the patients (55.2%) were not working and more than a half of their husband (53.2%) were private employee. Almost all (92.6%) of the patient were married. Most of the patient (38.8%) came with no prior contraception. After consultation, all patients had chosen their preferred contraceptive methods, namely IUD (61.4%), injectable contraception (20.9%), pill (13.7%), sterilization (3.4%), and implant (0.6%). Conclusion: Family planning reduces maternal mortality and the best method is different for each patient because of the difference in their own condition and the consideration of the cost and benefit. [Indones J Obstet Gynecol 2013; 1-4:179-82] Keywords: contraception, contraceptive users profile


2016 ◽  
Vol 9 (1) ◽  
pp. 31-33
Author(s):  
Ashesh K Chowdhury ◽  
Abu Mohammed Shafique ◽  
Zeenat F Rahman

Coronary arteay disease (CAD) is an important cause of morbidity and mortality in developed as well as developing countries like Bangladesh. In this study, the status of serum apolipoprotein A-I (Apo A-1) and apolipoprotein B (Apo B) levels were assessed in Bangladeshi patients with coronary artery diseases. The study was carried out in the Department of Cardiology, University Cardiac Centre (UCC), Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka. Total study population was 100, of which 50 were patients with CAD and 50 were individuals without CAD (control). The patients with CAD and controls were enrolled following the inclusion and exclusion criteria. About 5 ml blood was collected by venepuncture from each individual and apolipoprotein A-1 and B were determined by automated nephelometry. The mean age of total study population was 51.4 ± 10.8 years while the mean age of the patients and control was 51.3 ± 10.9 and 51.4 ± 10.9 years respectively. The Apo A-I level was significantly (p<0.01) different in CAD patients compared to control group (95.10 ± 20.50 mg/dl vs 113.47 ± 20.96 mg/dl). The ratio of Apo B and Apo A1 was also significantly higher (p<0.01) in CAD patients than that of controls (1.25 ± 0.40 vs 0.95 ± 0.26 while Apo B levels was not different among the two groups. The study revealed significant alteration of serum Apo A-I level and Apo B/Apo A-I ratio in patients with CAD compared to those without CAD. Further large-scale study is needed to evaluate the exact influence of apolipoproteins on coronary artery disease in Bengali ethnic population.Ibrahim Med. Coll. J. 2015; 9(1): 31-33


2009 ◽  
Vol 12 (1) ◽  
pp. 111-114 ◽  
Author(s):  
Olivier Bruyere ◽  
Caroline De Cock ◽  
Catherine Mottet ◽  
Audrey Neuprez ◽  
Olivier Malaise ◽  
...  

AbstractObjectiveThe WHO recommends a daily Ca intake for postmenopausal women of 1300 mg. The objective of the present study was to assess the dietary Ca intake in European postmenopausal osteoporotic women.Design, setting and subjectsAssessment of dietary Ca intake (food and supplements) was performed with a validated self-questionnaire in 8524 osteoporotic women from nine European countries (Belgium, Denmark, France, Germany, Hungary, Italy, Poland, Spain and the UK).ResultsMean age of the patients was 74·2 (sd 7·1) years, mean BMI was 25·7 (sd 4·2) kg/m2. Of the study population, 37·2 % of the women took Ca supplements. The mean dietary intake of Ca was 930·7 (sd 422·9) mg/d. The lowest Ca intake was found in Hungary (586·7 (sd 319·1) mg/d) and the highest in Denmark (1145·6 (sd 463·0) mg/d). In the whole study population, only 19·1 % of the women had a dietary Ca intake >1300 mg/d. Only 17·1 % of women aged over 75 years achieved 1300 mg/d compared with 20·5 % of women aged less than 75 years (P = 0·0001 for the difference between the two groups).ConclusionDietary intake of Ca is very low in European postmenopausal women. A greater awareness is needed to resolve this public health problem.


2021 ◽  
Vol 19 (2) ◽  
Author(s):  
Hossein Ahmadi Kahjoogh ◽  
Maryam Vasheghani Farahani ◽  
Babak Shekarchi ◽  
Beheshteh Abouhamzeh ◽  
Mahdi Isazadeh

Background: Different parts of the skeletal system have been studied in different studies to determine gender. The pelvis is one of the most important skeletal components for the determination of gender and identification of humans. Objectives: The current study aimed to determine gender using the ischiopubic index and upper pelvic index in the adult population of Iran. Methods: In this study, 140 individuals (70 male and 70 female subjects) referring to Athari Imaging Center in Tehran, Iran, for various medical reasons entered the study by giving written and oral consent using the convenience sampling method. Measurements were performed on digital anteroposterior pelvic radiographs (with standard conditions and radiographic stencil distance from the light source as 100 cm). The obtained data were analyzed using SPSS software (version 22). Results: The mean ischemic index of the whole population was 108.88 ± 13.75. The difference in the ischiopubic index between male and female subjects was significant (P < 0.05). The mean upper pelvic index of the whole study population was 81.70 ± 10.09; however, the difference in the upper pelvic index between the two groups of male and female subjects was not significant (P < 0.05). Conclusions: The pelvic ischemic index in Iranian women is higher than that reported for men. If the ischiopubic index is higher than 103, with 93% sensitivity and 73% specificity, it would be female. According to the study of graphs, if there is a special identity for diagnosis, there will be the possibility to match the graph before the death of the individual with the graph taken from skeletal remains.


2017 ◽  
Vol 102 (6) ◽  
pp. 779-783 ◽  
Author(s):  
Hassan Hashemi ◽  
Reza Pakzad ◽  
Rafael Iribarren ◽  
Mehdi Khabazkhoob ◽  
Mohammad Hassan Emamian ◽  
...  

AimsTo evaluate lens power (LP) in schoolchildren aged 6–12 years.MethodsThis cross-sectional study was conducted in Shahroud, northeast Iran. The students were selected through random cluster sampling and underwent the measurements of biometry, uncorrected and corrected visual acuity, non-cycloplegic and cycloplegic refraction. The LP was calculated using the Bennett formula.ResultsOf 6624 invited children, 5620 (84.8%) participated in the study and data of 4870 children were finally analysed. The mean age of the participants was 9.7 years and 2277 participants (46.02%) were girls. The mean LPs were 22.86 dioptres (D) in total study population, 23.91 D in 6 and 22.10 D in 12-year-old children. The mean LP was higher in girls than boys (23.48 D vs 22.34 D), in rural children than urban children (23.17 D vs 22.83 D) and in children with hyperopia (23.25 D) than children with myopia or emmetropia (22.64 D and 22.86 D, respectively). In the multiple linear regression model, lens thickness (β=1.59, p<0.001), anterior chamber depth (β=2.21, p<0.001) and female sex (β=0.016, p=0.015) were associated with an increase in the LP, while axial length (AL) (β=−4.41, p<0.001), corneal power (CP) (β=−1.47, p<0.001), spherical equivalent (SE) (β=−1.50, p<0.001) and age (β=−0.005, p=0.001) were associated with a decrease in the LP. AL and sex had the highest and lowest impact on LP, respectively.ConclusionLP decreased with age between 6 and 12 years and was associated with a shorter AL, deeper ACD, higher SE, thicker lens and lower CP.


1989 ◽  
Vol 32 (2) ◽  
pp. 317-322 ◽  
Author(s):  
Prudence Allen ◽  
Frederic Wightman ◽  
Doris Kistler ◽  
Terrence Dolan

The auditory frequency resolving ability of preschool children, school-aged children, and adults was assessed in a standard forced-choice masking experiment. Thresholds for pure-tone signals at 500 Hz, 2000 Hz, and 4000 Hz were obtained in two masking conditions. In one condition, the masker was a 4000-Hz-wide band of noise centered at the signal frequency; in the other, there was a notch in the noise spectrum, approximately one-half octave wide and 50 dB deep, centered at the signal frequency. Frequency resolving ability was inferred from the difference in signal threshold between the two masking conditions. The adaptive forced-choice psychophysical procedure was embedded in a video game in order to obtain rigorous pyschophysical data within the attentional limits of young children. This procedure produced data from children as young as 3 years old that were qualitatively indistinguishable from adult data. However, the threshold estimates from the children were more variable from run to run than were the estimates obtained from adults. The mean data from this experiment suggest that frequency resolving ability improves at all frequencies with increasing age.


2019 ◽  
Vol 8 (1) ◽  
pp. 12-19 ◽  
Author(s):  
Maryam Akbarilakeh ◽  
Alireza Razzaghi ◽  
Hoseein Delavar Pour Moghaddam

Background: Faculty member’s attitude is one of the most important factors in the success of electronic learning. Understanding the attitudes of teachers toward e-learning can lead to an appropriate learning environment. This study aimed at examining the attitude of faculty members towards e-Learning at Shahid Beheshti University of Medical Sciences in 2016. Methods: In this cross-sectional study, 334 faculty members from the faculties of university were selected by random stratified sampling method and their attitude was assessed by questionnaires. Data was analyzed using SPSS 20. Results: The mean age of subjects was 49.09 (SD = 7.41). Of the total study population, 57.75% (190) were males and 42.25% (139) were females. The highest mean score among the dimensions of attitude assessment was related to sense of enjoyment with a mean of 29.26 (SD = 0.71) and the lowest mean related to self-efficacy (mean = 5.96) (SD = 0.82). Conclusion: The results of this study show that the attitude of faculty members is positive towards using appropriate e-learning. However, more studies are needed to assess the obstacles and approaches to improve the attitude of faculty members towards e-learning.


2016 ◽  
Vol 33 (S1) ◽  
pp. S318-S318
Author(s):  
O. Simon ◽  
R. Chebbi ◽  
A. Ochoa Godall ◽  
J. Eicher ◽  
C. Zumwald ◽  
...  

Background and aimWithin Switzerland, video game players seeking specialised treatment are usually referred to gambling addiction services. The Centre for Excessive Gambling (CJE) is a specialised gambling addiction unit in Lausanne University Hospital. Between 2003 and 2015 the service offered also support to 64 adults seeking treatment for videogaming-related disorders.According to international literature, Internet disorder treatment programmes have been developed. However, little is known about clinical profile of users seeking treatment. Studies into Internet or gaming disorders typically employ Internet survey methods or use student samples. The current presentation will outline demographic and clinical features of video gamers receiving treatment at the CJE.MethodData were collected from the medical records of 57 video gamers seeking treatment at the CJE between 2003 and 2015.ResultsThe sample includes 93% men, mostly single (91%), with an average age of 25 years ± 7. On average the sample spent 9 hours ± 5 per day playing video games. A disorder had emerged an average of 3 years ago ± 3. The crisis preceding the first consultation was familial (50%), emotional (29%) or professional (16%). Sixty-five percent of the sample had a mood disorder and 20% reported suicidal ideations.DiscussionTreatments should address comorbidities and family problems associated with video game disorders. Offering consultations for parents could be useful, even in absence of the young player.Disclosure of interestThe authors have not supplied their declaration of competing interest.


2017 ◽  
Vol 96 (4-5) ◽  
pp. E24-E28 ◽  
Author(s):  
Anya J. Miller ◽  
Glendon M. Gardner

We conducted a study to analyze hospital and patient costs, outcomes, and patient satisfaction among adults undergoing in-office and operating room procedures for the treatment of recurrent respiratory papillomatosis. Our final study population was made up of 17 patients—1 man and 16 women, aged 30 to 86 years (mean: 62). The mean number of in-office laser procedures per patient was 4.2, and the mean interval between procedures was 5.4 months (although 10 patients underwent only 1 office procedure); the mean number of operating room procedures was 13.5, and the mean interval between procedures was 14.3 months. An equal number of patients reported complications or adverse events with the two types of procedures—5 each. The difference in cost between the office procedure (mean: $3,413.00) and the operating room procedure (mean: $12,382.59) was almost $9,000, but these savings were offset by the fact that the office procedures needed to be performed three times as often. Patients reported slightly more anxiety and discomfort during the office procedures and, overall, they appeared to prefer the operating room procedure. We conclude that office procedures are significantly more cost-effective than operating room procedures, but their use may be limited by patient tolerance and the increased frequency of the procedure.


Author(s):  
Mengxin He ◽  
Lin-Xuan Xu ◽  
Chiang-shan R. Li ◽  
Zihan Liu ◽  
Jiaqi Hu ◽  
...  

Objective Do real-time strategy (RTS) video gamers have better attentional control? To examine this issue, we tested experienced versus inexperienced RTS video gamers on multi-object tracking tasks (MOT) and dual-MOT tasks with visual or auditory secondary tasks (dMOT). We employed a street-crossing task with a visual working memory task as a secondary task in a virtual reality (VR) environment to examine any generalized attentional advantage. Background Similar to action video games, RTS video games require players to switch attention between multiple visual objects and views. However, whether the attentional control advantage is limited by sensory modalities or generalizes to real-life tasks remains unclear. Method In study 1, 25 RTS video game players (SVGP) and 25 non-video game players (NVGP) completed the MOT task and two dMOT tasks. In study 2, a different sample with 25 SVGP and 25 NVGP completed a simulated street-crossing task with the visual dual task in a VR environment. Results After controlling the effects of the speed-accuracy trade-off, SVGP showed better performance than NVGP in the MOT task and the visual dMOT task, but SVGP did not perform better in either the auditory dMOT task or the street-crossing task. Conclusion RTS video gamers had better attentional control in visual computer tasks, but not in the auditory tasks and the VR tasks. Attentional control benefits associated with RTS video game experience may be limited by sensory modalities, and may not translate to performance benefits in real-life tasks.


Sign in / Sign up

Export Citation Format

Share Document