Ideal Screen Research Articles

Validation of selected tablet apps for determining visual acuity

Purpose. The aim of the study is to investigate whether applications for mobile devices are suitable for the professional determination of visual acuity. Material and Methods. The best-corrected logMAR was determined in 25 healthy subjects (age: 25.7 ± 6.7; Vcc ≥ 1.0) using the Konan Acuity and the Snellen chart applications with letters (B) and with Landolt rings at 4 orientations (L) both without an additional lens (0) and with additional spherical lenses +0.50 D (0.5) or +1.00 D (1.0), and compared with the logMAR determined on the corresponding ETDRS charts. Furthermore, the best-corrected logMAR was investigated for 6 of the 25 participants on the tablet at three different screen brightnesses (80, 200 and 370 cd/m²). Results. For the Konan Acuity app, the following mean values and significant logMAR differences to the ETDRS charts were determined: B0: −0.20; ∆ = −0.03 (p = 0.045); B0.5: −0.13; ∆ = −0.04; (p < 0.001); B1.0: 0.06; ∆ = −0.08 (p < 0.001); L0: −0.20; ∆ = −0.06 (p < 0.001); L0.5: −0,13; ∆ = −0.09 (p < 0.001); L1.0: 0.08; ∆ = −0.11 (p < 0.001). For the Snellen chart app, the following mean values and significant logMAR differences to the ETDRS charts were determined: B0: −0.22; ∆ = −0.05 (p < 0.001); B0.5: −0.16; ∆ = −0.07 (p < 0.001); B1.0: 0.05; ∆ = −0.09 (p < 0.001); L0: −0.23; ∆ = −0.08 (p < 0.001); L0.5: −0.17; ∆ = −0.12 (p < 0.001); L1.0: 0.08; ∆ = −0.11 (p < 0.001). The median logMAR differences between the different screen brightnesses were 0.02 (80 – 200 cd/m²) and 0.00 (370 – 200 cd/m²). Conclusion. At ideal screen brightness, both applications show significant differences to the ETDRS charts. However, these can be regarded as tolerable in clinical practice, at least in young, healthy eyes. The measurements with deviating screen brightness show only minor differences. With the right app, tablets are suitable for determining visual acuity in everyday clinical practice, but are unsuitable for scientific or expert purposes. Keywords Visual acuity, ETDRS chart, Konan acuity chart, Snellen chart

Core requirements of frailty screening in the emergency department: an international Delphi consensus study.

Frailty is associated with adverse outcomes among patients attending emergency departments (EDs). While multiple frailty screens are available, little is known about which variables are important to incorporate and how best to facilitate accurate, yet prompt ED screening. To understand the core requirements of frailty screening in ED, we conducted an international, modified, electronic two-round Delphi consensus study. A two-round electronic Delphi involving 37 participants from 10 countries was undertaken. Statements were generated from a prior systematic review examining frailty screening instruments in ED (logistic, psychometric and clinimetric properties). Reflexive thematic analysis generated a list of 56 statements for Round 1 (August-September 2021). Four main themes identified were: (i) principles of frailty screening, (ii) practicalities and logistics, (iii) frailty domains and (iv) frailty risk factors. In Round 1, 13/56 statements (23%) were accepted. Following feedback, 22 new statements were created and 35 were re-circulated in Round 2 (October 2021). Of these, 19 (54%) were finally accepted. It was agreed that ideal frailty screens should be short (<5 min), multidimensional and well-calibrated across the spectrum of frailty, reflecting baseline status 2-4weeks before presentation. Screening should ideally be routine, prompt (<4h after arrival) and completed at first contact in ED. Functional ability, mobility, cognition, medication use and social factors were identified as the most important variables to include. Although a clear consensus was reached on important requirements of frailty screening in ED, and variables to include in an ideal screen, more research is required to operationalise screening in clinical practice.

Associations between nature exposure, screen use, and parent–child relations: a scoping review protocol

BackgroundToday’s youth are growing up in an evolving digital world, and concerns about the potential detrimental effects of excessive screen use on biopsychosocial outcomes in childhood are mounting. Parents worry about the impacts of screen-use on their children’s wellbeing but at the same time frequently fail to meet their own ideal screen time limits regarding their children’s screen use. There is an opportunity to shift research focus away from inflexible and often unrealistic childhood screen time guidelines towards exploration of positive parenting strategies that may have multiple beneficial and significant effects on children’s screen-related outcomes. An emerging body of literature suggests that screen time and nature exposure act on psychosocial outcomes in contrasting ways. There is evidence to suggest that exposure to natural environments may counteract some of the potential negative psychosocial effects of excessive screen use; however, this relationship is poorly understood. The overarching aim of this scoping review is to source, categorise, and synthesise existing research exploring the associations between nature exposure, screen use, and parenting across childhood.MethodsThis mixed-methods systematic scoping review will be conducted following Arksey and O’Malley’s framework with methodological enhancements from Levac and associates and recommendations from the Joanna Briggs Institute’s methodological guidance for conducting scoping reviews. Five electronic databases will be searched from August 2022 onwards. Two reviewers will independently screen titles, abstracts, and full-text articles. Peer reviewed articles related to the constructs of nature exposure, screen use, and parent/child relations will be considered in the context of early to late childhood. Study characteristics will be collated using a data charting tool collaboratively developed by the research team. Evidence will be presented using tabular and textual form and described using qualitative thematic analysis.DiscussionThis review will gather information about how key definitions are conceptualised, defined, and measured across the literature and map existing trends and areas for future research. It is intended that this review will inform and guide future research direction, recommendations, and programs aimed at supporting parents to navigate the challenges of parenting in a digital age.OSF registrationhttps://doi.org/10.17605/OSF.IO/TFZDV

Identifying Cognitive Impairment in the Acute Care Hospital Setting: Finding an Appropriate Screening Tool.

Identifying cognitive impairment in adults in acute care is essential so that providers can address functional deficits and plan for safe discharge. Occupational therapy practitioners play an essential role in screening for, evaluating, and treating cognitive impairment. To test and compare the psychometrics and feasibility of three cognitive screens and select the ideal screen for use in acute care. Prospective mixed methods. Acute care hospital. Fifty adults. We examined the interrater reliability, administration time, and usability of the Brief Cognitive Assessment Tool Short Form (BCAT-SF), the Activity Measure for Post-Acute Care "6-Clicks" Applied Cognitive Inpatient Short Form (AM-PAC ACISF), and the Montreal Cognitive Assessment (MoCA). We compared the construct validity, sensitivity, and specificity of the BCAT-SF and AM-PAC ACISF with those of the MoCA. Interrater reliability was good to excellent; ICCs were .98 for the MoCA, .97 for the BCAT-SF, and .86 for the AM-PAC ACISF. The BCAT-SF and the AM-PAC ACISF both had 100% sensitivity, and specificity was 74% for the BCAT-SF and 98% for the AM-PAC ACISF. The optimal cutoff score for cognitive impairment on the AM-PAC ACISF was <22. Administration time of the AM-PAC ACISF (1.0 min) was significantly less than that of the BCAT-SF (5.0 min) and the MoCA (13.3 min; p < .001). Each screen demonstrated acceptable reliability and construct validity. The AM-PAC ACISF had the optimum mix of performance and feasibility for the fast-paced acute care setting. What This Article Adds: Early identification of cognitive impairment using the AM-PAC ACISF can allow for timely occupational therapy intervention in acute care settings.

Health promotion an eye opener tool for computer vision syndrome

Background: Computer is one of the most common office tools used in a variety of institutions worldwide. Using a computer for an extended period of time put users at a higher risk of developing computer vision syndrome. The leading occupational health problem of the 21st century is computer vision syndromeMethods: This is an online-based, cross-sectional study that was conducted between June 3rd and June 14th, 2021. We selected approximately 200 computer users, both students and working, ranging in age from 10 to 40 years, who spend a significant amount of time in front of a digital screen. Data was gathered by completing an online questionnaire form about C.V.S.Results: A Google form was filled out by 200 people, both students and working professionals, and it was discovered that more than 90% of the population are aware of the negative effects of excessive screen time. Only having knowledge and being aware is insufficient to reduce CVS incidences and prevalence. Approaches to health promotion are critical in understanding the reasons for the increased prevalence of CVS. Only 41% wear protective eyewear, demonstrating negligence and the importance of a behavioural change approach in reducing CVS prevalence.Conclusions: We can conclude that excessive screen use can cause problems. People may be aware of the negative effects of screens, but they continue to ignore their eye health. Educating yourself on the ideal eye screen distance of 51 cm (20 inches) is essential, as is the use of protective eyewear.

An olfactory self-test effectively screens for COVID-19

BackgroundKey to curtailing the COVID-19 pandemic are wide-scale screening strategies. An ideal screen is one that would not rely on transporting, distributing, and collecting physical specimens. Given the olfactory impairment associated with COVID-19, we developed a perceptual measure of olfaction that relies on smelling household odorants and rating them online.MethodsEach participant was instructed to select 5 household items, and rate their perceived odor pleasantness and intensity using an online visual analogue scale. We used this data to assign an olfactory perceptual fingerprint, a value that reflects the perceived difference between odorants. We tested the performance of this real-time tool in a total of 13,484 participants (462 COVID-19 positive) from 134 countries who provided 178,820 perceptual ratings of 60 different household odorants.ResultsWe observe that olfactory ratings are indicative of COVID-19 status in a country, significantly correlating with national infection rates over time. More importantly, we observe indicative power at the individual level (79% sensitivity and 87% specificity). Critically, this olfactory screen remains effective in participants with COVID-19 but without symptoms, and in participants with symptoms but without COVID-19.ConclusionsThe current odorant-based olfactory screen adds a component to online symptom-checkers, to potentially provide an added first line of defense that can help fight disease progression at the population level. The data derived from this tool may allow better understanding of the link between COVID-19 and olfaction.

CRISPR/Cas12a-mediated CHO genome engineering can be effectively integrated at multiple stages of the cell line generation process for bioproduction.

Most biopharmaceuticals produced today are generated using Chinese hamster ovary (CHO) cells, therefore significant attention is focused on methods to improve CHO cell productivity and product quality. The discovery of gene-editing tools, such as CRISPR/Cas9, offers new opportunities to improve CHO cell bioproduction through cell line engineering. Recently an additional CRISPR-associated protein, Cas12a (Cpf1), was shown to be effective for gene editing in eukaryotic cells, including CHO. In this study, we demonstrate the successful application of CRISPR/Cas12a for the generation of clonally derived CHO knockout (KO) cell lines with improved product quality attributes. While we found Cas12a efficiency to be highly dependent on the targeting RNA used, we were able to generate CHO KO cell lines using small screens of only 96-320 clonally derived cell lines. Additionally, we present a novel bulk culture analysis approach that can be used to quickly assess CRISPR RNA efficiency and determine ideal screen sizes for generating genetic KO cell lines. Most critically, we find that Cas12a can be directly integrated into the cell line generation process through cotransfection with no negative impact on titer or screen size. Overall, our results show CRISPR/Cas12a to be an efficient and effective CHO genome editing tool.

Effect of Screen Distance on Colonic Polyp Detection and Colonic Polyp Size Estimation: A Pilot Study

Background Colorectal cancer is the 3rd most common cancer in the world, with about 1.2 million new cases reported annually. It is one of the three most common causes of cancer related mortality in Europe and North America. Thus, prevention and detection are critical aspects in managing colorectal cancer. Colonoscopy remains the gold standard for screening of colorectal cancer, as it is valuable not only for detection but also prevention with polyp identification. Adenoma detection rate remains a pivotal part of a good endoscopic exam. While various factors have been known to influence it, data regarding ideal screen distance for adenoma detection remains unclear. The aim of this study was to assess the rate of polyp detection and estimate the size of diminutive (&lt;1 cm) polyps with varying screen distance from the proceduralist. Materials and Methods This was a quality improvement project carried at OSF Saint Francis Medical center where post graduate trainees and attending physicians were enrolled. A 26-inch-high resolution screen was used and placed at eye level for the endoscopist. We selected 50 high resolution slides of polyps (&lt;1 cm) intermixed with slides of normal colonic mucosa. These slides were downloaded from Orpheus Medical, a global clinical media platform and video informatics company. These were shown to each endoscopist standing either 3, 6, or 9 feet away (0.91, 1.8, or 2.7 meters) from the screen on three separate days, arranged in 3 different configurations. Both the rate of polyp detection and the sizes of polyps measured at various distances were recorded. The endoscopists were able to move +/- 10 cm (0.5 feet) from their index position to enhance their visualization and for better accommodation. The data was collected for multiple outcomes and statistical analysis was performed using odds ratio and t-test. Results Seven subjects who were either 3rd year Gastroenterology fellows or attendings were included in the study. We included 50 slides, with 33 consisting of polyps (&lt;1 cm) and others containing normal colonic mucosa. Our results showed that the number of polyps detected decreased as the distance from the screen increased. Overall polyp detection rate (PDR) was 92.18% at 3 feet (0.91 m), 87% at 6 feet (1.8m) and 77% at 9 feet (2.7m). An endoscopist positioned at 3 ft had a statistically significant higher polyp detection rate than one positioned at 9 ft with odds ratio (OR) of 3.43 (95% CI: 1.45 – 8.11, p= 0.004). The mean polyp size reported by all subjects was 2.68 mm at 3 feet, 2.57 mm at 6 feet and 2.25 mm at 9 feet. Comparison of mean polyp sizes at different distances from screen did not reveal statistically significant differences. Secondary outcomes included accuracy of polyp detection, miss rate and mean overestimation rate. The participating subjects were surveyed verbally at the end of the study to assess their comfort at various distances. They reported the highest level of comfort at 3 feet (0.91m), followed by 6 feet (1.8m). Conclusions This quality improvement study sheds light on the importance of screen distance for polyp detection, especially in case of smaller polyps &lt;1cm. Our results show that ideal screen distance for polyp detection should be close to 3 feet (0.91m) and ideally no more than 6 feet (1.8m). Similarly, our results also point out that polyp size may be overestimated if the examiner is too close to the screen and underestimated if the examiner is too far from the screen. We advocate standardization of screen distance from the endoscopist, so that the polyp size estimation is uniform across the board.

Perceptions of Parents Having Children in Preschool Level Regarding Their Children's Screen Use

The perception of parents on children’s screen use is expected to affect their children’s screen usage and understanding the perception of parents about this subject can help in the preparation of roadmaps to show how children should use screen. The aim of this study is examine to the perception of the parents about positive and negative effects of screen use on their children, and to compare children’s actual screen use and the ideal screen use proposed by parents. The data conducting an interview one of the method of qualitative research. Participants comprised of 25 parents while 20 of them were mother, 5 of them were father, age range is between 26 to 43, have high-education and with child in preschool level. Although parents reported both positive and negative perceptions about screen usage the views that screen use adversely affects children are more distinct. While parents see knowledge / skills acquisition as the most positive side of the screen; the most downside is that they see the child's social isolation. In addition, there are remarkable differences between the use of screen that parents see as ideal for their children and the current screen usage of children.

S0145 Closer the Better? Impact of Screen Distance on Adenoma Detection

INTRODUCTION: Colorectal cancer is one of the most common cancers all over the world. Colonoscopy remains the gold standard for screening of colorectal cancer. Adenoma detection rate remains a pivotal part of a high quality endoscopic exam. While various factors have been known to influence it, data regarding ideal screen distance for adenoma detection remains unclear. The aim of this study was to assess the rate of polyp detection and estimating size of diminutive (<1 cm) polyps at 3, 6, and 9 feet. METHODS: This was a quality improvement project carried out at OSF Saint Francis Medical center where post graduate trainees and attending physicians were enrolled. A 26-inch-high resolution screen was used and placed at eye level for the endoscopist. Fifty high resolution slides from our digital imaging storage software (Orpheus) of polyps (<1 cm) intermixed with slides of normal colonic mucosa were included. These were shown to each endoscopist standing at 3, 6, and 9 feet on three separate days arranged in 3 different configurations. Polyp detection and sizes of polyps measured at various distances were recorded. RESULTS: Seven subjects that included 3rd year Gastroenterology fellows and attendings were included in the study. 50 slides were included, 33 slides with polyps intermixed with slides of normal colonic mucosa. Results demonstrated that the number of polyps detected decreased as the distance from the screen increased. Mean number of polyps observed at 3 feet was 33.28, at 6 feet was 30.28, while at 9 feet mean polyp detection decreased to 26.14. Similarly, we noticed the estimate of polyp size to also decrease as the distance from the screen increased. Mean polyp size reported by all subjects at 3 feet was 1.94 mm, while at 6 feet it was 1.74 mm, and at 9 feet mean estimated polyp size was 1.55 mm. The participating subjects were surveyed verbally at the end of the study. They reported the highest level of comfort at 3 feet followed by 6 feet. CONCLUSION: Our study shed light on the importance of screen distance for polyp detection especially in case of smaller polyps. Our results suggest that the ideal screen distance for polyp detection should be close to 3 feet and ideally no more than 6 feet. Similarly, polyp size estimation is influenced inversely by screen distance with increasing distance from screen equating to smaller polyp size approximation. Larger studies are needed to draw further conclusions as more concrete guidelines may lead to uniformity in outcomes.

Awareness and attitude among parents of primary school students towards screen time in children

Background: Screen time behavior in young children is highly influenced by parental attitude towards screen time.The objective of this study is to assess the awareness and attitude among parents of primary school students in the state of Tamil Nadu, India towards screen time in children. Methods: This cross-sectional observational study was conducted in the state of Tamil Nadu, India among 134 parents of primary school children. Data collected using a predesigned questionnaire were analyzed using suitable statistical methods.Results: Of the 134 participants, 48.5% were fathers and 51.5% mothers. Majority (77.6%) were in the age group of 24 to 35 years. Only 3.7% of the participants were aware of the exact screen time guidelines in children. 93.3% of the participants felt that it was important to limit screen time in children. 84.3% of the participants believed that the content of screen time should be controlled in children. 82.1% of parents felt that they should co view media with their children. 65.7% of the participants believed that the ideal screen time in children per day is 1 to 2 hours. 82.1% of the participants believed that using screen time as a replacement for caretaker was an important reason for increasing screen time. The awareness of adverse effects of increased screen time was high among the participants. 91.8% of the participants believed that establishing limits for screen time in children was the most efficient way to limit screen time in children. 89.6 % believed that increasing awareness among children was important.Conclusions: In this study, we conclude that majority of the parents were aware of the adverse effects of increasing screen time and want to establish healthy screen time behaviours in children.

The off-axis aspheric mirror testing based on the fringe reflection technique

In this paper, the FRT (fringe reflection technique) is used for the off-axis aspheric surface measurement during the manufacture stage of the beginning of polish, duo to its advantage of large dynamic range and high sensitivity. The measurement system coordinate and ray trace model are build using the laser tracker, and the calibration results of the camera calibration and screen calibration are introduced into the Zemax model and the ideal screen pixel point position can be got by ray tracing. The measurement of screen pixel point position is obtained by phase-shifting technique. The slope error of the surface is calculated and final results are got by integration. The measurement results of a SiC off-axis mirror obtained by the presented method and the CMM are compared and feasibility is verified. This method can be used to guide the manufacture of off-axis aspheric surface during the beginning of the polish.

Towards an ideal neonatal sepsis screen panel - A review

Neonatal sepsis is an important determinant of survival in the neonatal units. Early recognition and institution of antibiotic therapy is the key for successful treatment. Complete blood count and C-reactive protein are the ritualistic commonly used tests that aid the clinician in the initiation and stopping of antibiotic therapy. Procalcitonin at 24 h is useful in diagnosing early-onset neonatal sepsis (EOS). Interleukin 6 and CD 11? for EOS and CD 64 for late-onset sepsis are promising candidates for future sepsis screen panel as logistical issues like the cost factor rule out their routine use currently. We summarize the current available evidence on the use of these laboratory markers and the clinical sepsis score and suggest a practical guide for antibiotic therapy (initiation and duration of treatment) for the benefit of practicing pediatricians.

A Cell-Based High-Throughput Assay for Gap Junction Communication Suitable for Assessing Connexin 43–Ezrin Interaction Disruptors Using IncuCyte ZOOM

Connexin 43 (Cx43), the predominant gap junction (GJ) protein, directly interacts with the A-kinase-anchoring protein (AKAP) Ezrin in human cytotrophoblasts and a rat liver epithelial cells (IAR20). The Cx43-Ezrin–protein kinase (PKA) complex facilitates Cx43 phosphorylation by PKA, which triggers GJ opening in cytotrophoblasts and IAR20 cells and may be a general mechanism regulating GJ intercellular communication (GJIC). Considering the importance of Cx43 GJs in health and disease, they are considered potential pharmaceutical targets. The Cx43-Ezrin interaction is a protein-protein interaction that opens possibilities for targeting with peptides and small molecules. For this reason, we developed a high-throughput cell-based assay in which GJIC can be assessed and new compounds characterized. We used two pools of IAR20 cells, calcein loaded and unloaded, that were mixed and allowed to attach. Next, GJIC was monitored over time using automated imaging via the IncuCyte imager. The assay was validated using known GJ inhibitors and anchoring peptide disruptors, and we further tested new peptides that interfered with the Cx43-Ezrin binding region and reduced GJIC. Although an AlphaScreen assay can be used to screen for Cx43-Ezrin interaction inhibitors, the cell-based assay described is an ideal secondary screen for promising small-molecule hits to help identify the most potent compounds.

A simple, reliable method for high-throughput screening for diabetes drugs using 3D β-cell spheroids

Early screens for new diabetes drugs rely on monolayers of β-cells, which are known to be poor predictors of the in vivo response. Previously, we developed a method to create uniform islet spheroids from freshly-dispersed human donor tissue for drug screening. While the human engineered islets worked well to reduce donor-to-donor variability, it is difficult and expensive to obtain sufficient high-quality human islets for drug testing. Thus, this study utilized a genetically-modified β-cell culture line (INS-1832/13) in 2D and as 3D spheroids and compared the results to human islet tissue formed into spheroids using a high-throughput 384-well format. In response to increasing concentrations of glucose, all 3 groups increased insulin release, but the cultured β-cells (2D and 3D) were more sensitive to glucose (EC50 5.85mM for 2D β-cells, 16.24mM for 3D β-cell spheroids) than the human islet spheroids (EC50 53.69mM). The order of responses to glybenclamide was human spheroids >3D β-cell culture >2D β-cell culture. In response to caffeine, the β-cells in 2D or 3D were more responsive compared to the human islet spheroids (EC50 0.39 and 0.31mM for 2D and 3D β-cells respectively). When exposed to inhibitors of insulin secretion (nifedipine and diazoxide), the responses were more similar between groups. Z' calculations, indicative of assay quality, determined that the 3D β-cell spheroids reached the criteria of an excellent to ideal drug screen assay more consistently than the other test models. In conclusion, 3D β-cell spheroids from a cultured cell line can be used in HTS assays that, according to reference drugs tested here, are sensitive and predictive of the in vivo response.

Effect of injection screen slot geometry on hydraulic conductivity tests

Summary Hydraulic conductivity and its spatial variability are important hydrogeological parameters and are typically determined through injection tests at different scales. For injection test interpretation, shape factors are required to account for injection screen geometry. Shape factors act as proportionality constants between hydraulic conductivity and observed ratios of injection flow rate and injection head at steady-state. Existing results for such shape factors assume either an ideal screen (i.e., ignoring effects of screen slot geometry) or infinite screen length (i.e., ignoring effects of screen extremes). In the present work, we investigate the combined effects of circumferential screen slot geometry and finite screen length on injection shape factors. This is done in terms of a screen entrance resistance by solving a steady-state potential flow mixed type boundary value problem in a homogeneous axi-symmetric flow domain using a semi-analytical solution approach. Results are compared to existing analytical solutions for circumferential and longitudinal slots on infinite screens, which are found to be identical. Based on an existing approximation, an expression is developed for a dimensionless screen entrance resistance of infinite screens, which is a function of the relative slot area only. For anisotropic conditions, e.g., when conductivity is smaller in the vertical direction than in the horizontal, screen entrance losses for circumferential slots increase, while they remain unaffected for longitudinal slots. This work is not concerned with investigating the effects of (possibly turbulent) head losses inside the injection device including the passage through the injection slots prior to entering the porous aquifer.

The Korean Valentino: Jin Yan (Kim Yŏm), Sino-Korean Unity, and Shanghai Films of the 1930s

This essay examines the involvement of Korean-born ethnic star Kim Yŏm (Chinese name: Jin Yan) in Shanghai’s left-wing, resistance film movement during the 1930s. In addition to reading Kim’s persona as an ideal screen embodiment of “athletic, modern youth,” which was being promoted by the official screen policy during the Nanjing decade (1927–1937), the author offers a close analytical interpretation of director Sun Yu’s masterpiece The Big Road ( Da Lu , 1934). In this film, Kim plays a revolutionary martyr who leads a group of construction workers building new roads for the Chinese army resisting the invasion of Japanese imperialists. Employing a transnational star studies paradigm, the author interprets The Big Road as an allegory of Sino-Korean unity, one that was founded upon a common resistance against the Japanese Empire at the time of the film’s release.

Clipping error rate-adaptive color compensation based on gamut extension for a low-performance camera in a projector-camera system

As projectors become smaller and less expensive, the use of mobile (or portable) projectors is significantly increasing in environments where an ideal white screen is not readily available. Images from mobile projectors in this environment are often reproduced with visually distracting color distortion due to the use of arbitrary colored projection surfaces. In this paper, we propose an adaptive color compensation method that compensates for color distortion occurring in images projected onto an arbitrary colored projection surface without requiring use of a high-performance camera in a projector-camera system. The proposed method is based on gamut extension of a low-performance camera for device characterization and uses an adaptive clipping error reduction algorithm. Experimental results show that the proposed method effectively compensates for color distortion with an affordable low-performance camera, making the projector-camera system far more practical and marketable.

P1-157: TICS-m and cantab PAL: The ideal telephone screen and memory test for selecting amnestic mild cognitive impairment cases for clinical trials: The oxford project to investigate memory and ageing (optima) vitacog trial experience

P1-157: TICS-m and cantab PAL: The ideal telephone screen and memory test for selecting amnestic mild cognitive impairment cases for clinical trials: The oxford project to investigate memory and ageing (optima) vitacog trial experience

Diffraction on a semi-infinite screen of a plane nonstationary wave the amplitude of which increases linearly along the front set

An exact analytic solution of the two-variables nonstationary problem of diffraction on an ideal half-infinite screen is obtained by the Smirnov-Sobolev method. The source of the field is an incident plane acoustic wave with a δ-function profile. The wave amplitude is a linear function increasing along the front set. Bibliography: 6 titles.