smartphone application

智能手机应用程序
  • 文章类型: Journal Article
    目标:许多国家有可能未能实现2030年前将新生儿死亡率降低到每1000名活产儿中12名的可持续发展目标,因此需要采取干预措施。本范围审查评估了低收入和中等收入国家在新生儿急诊护理中实施基于智能手机应用的教育和临床决策支持研究的现有证据,并描述了应用评估工具,以突出当前文献中的差距。
    方法:2024年3月28日PubMed的系统搜索,WebofScience,EMBASE确定了2014年以后在同行评审期刊上发表的英文原创性研究论文。评估基于Kirkpatrick的框架。
    结果:总计,20项研究评估了8种不同的智能手机应用。参与者在14项研究中的11项发现应用是可以接受和可行的。12项研究中有11项知识和/或技能得到了改善。在10项研究中,通过跟踪应用程序的使用情况来评估行为。在四项研究中评估了患者的预后,关注围产期死亡率,基本新生儿护理结果和新生儿的正确评估。
    结论:纳入研究的数据进一步增强了智能手机应用能够提高中低收入国家新生儿死亡率的希望。然而,有必要对这些应用的有效性进行进一步研究。这篇综述突出了当前文献中的差距,并为未来的试验提供了指导。
    OBJECTIVE: Many countries risk failing the Sustainable Development Goal to reduce neonatal mortality to 12 in 1000 live births before 2030, necessitating intervention. This scoping review assesses available evidence from studies implementing smartphone application-based education and clinical decision support in neonatal emergency care in low- and middle-income countries and describes applied assessment tools to highlight gaps in the current literature.
    METHODS: A systematic search on 28 March 2024 of PubMed, Web of Science, and EMBASE identified original research papers published in peer-reviewed journals after 2014 in English. The evaluation was based on Kirkpatrick\'s framework.
    RESULTS: In total, 20 studies assessing eight different smartphone applications were included. Participants found applications acceptable and feasible in 11 of 14 studies. Knowledge and/or skills were improved in 11 of 12 studies. Behaviour was assessed in 10 studies by tracking app usage. Patient outcome was assessed in four studies, focusing on perinatal mortality, Basic Newborn Care outcomes and correct assessment of newborns.
    CONCLUSIONS: Data from included studies further strengthens hope that smartphone applications can improve neonatal mortality rates in low- and middle-income countries. However, further research into the effectiveness of these applications is warranted. This review highlights gaps in the current literature and provides guidance for future trials.
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  • 文章类型: Journal Article
    咨询,尼古丁替代,和其他戒烟药物已被证明对戒烟有效。智能手机和其他移动设备的广泛采用为可扩展和个性化的戒烟方法开辟了新的可能性。该研究调查了在接受低剂量计算机断层扫描(LDCT)筛查肺癌的个体中,智能手机应用程序是否比书面材料更有效地戒烟和减少吸烟(NCT05630950)。
    这项随机对照试验纳入了201名目前有明显吸烟史的吸烟者(吸烟≥15支/天,持续≥25年或吸烟≥10支/天,持续≥30年)。参与者按年龄和包年分层,并以1:1的方式随机分配到开发的智能手机应用程序(实验臂)或书面材料(护理标准)。所有受试者均接受LDCT筛查。3个月和6个月的自我报告戒烟是该研究的主要终点。研究的与吸烟相关的次要终点是与基线相比减少吸烟量/d的个体的百分比。
    在2022年11月18日至2023年4月14日之间,在奥卢大学医院对201名患者进行了筛查,芬兰,其中所有人都被随机分配到智能手机应用程序(n=101)或书面戒烟材料(n=100);200被包括在完整的分析集中.研究小组对于所有研究的人口统计学因素都很平衡。随机分配到智能手机应用组的受试者在三个月(19.8对7.1%;OR3.175CI95%1.276-7.899)和六个月(18.8对7.1%;OR2.847CI95%1.137-7.128)时自我报告戒烟率明显更高。在实验臂中,经常使用该应用的个体在3个月(p<0.001)和6个月(p=0.003)时戒烟的机会较高.
    研究表明,开发的智能手机应用程序增加了接受肺癌LDCT筛查的个体戒烟的可能性。
    阿斯利康,罗氏,芬兰癌症基金会。
    UNASSIGNED: Counseling, nicotine replacement, and other cessation medications have been proven effective in smoking cessation. The wide-scale adoption of smartphones and other mobile devices has opened new possibilities for scalable and personalized smoking cessation approaches. The study investigated whether a smartphone application would be more effective than written material for smoking cessation and reduction in smoking in individuals undergoing low-dose computed tomography (LDCT) screening for lung cancer (NCT05630950).
    UNASSIGNED: This randomized controlled trial enrolled 201 current smokers with marked smoking history (smoked ≥15 cigarettes/day for ≥25 years or smoked ≥10 cigarettes/day for ≥30 years). Participants were stratified by age and pack-years and randomized in 1:1 fashion to the developed smartphone application (experimental arm) or written material (standard of care). All the subjects underwent LDCT screening. Self-reported smoking cessation at three and six months were the primary endpoints of the study. The smoking-related secondary endpoints of the study were the percentage of individuals who had reduced the number of smoked cigarettes/d from the baseline.
    UNASSIGNED: Between Nov 18, 2022, and Apr 14, 2023, 201 patients were screened at Oulu University Hospital, Finland, of whom all were randomly assigned to smartphone application (n = 101) or written cessation material (n = 100); 200 were included in the full analysis set. Study arms were well-balanced for all the studied demographic factors. Subjects randomized to the smartphone application arm had significantly higher rates for self-reported smoking cessation at three (19.8 versus 7.1%; OR 3.175 CI 95% 1.276-7.899) and six months (18.8 versus 7.1%; OR 2.847 CI 95% 1.137-7.128). In the experimental arm, individuals with a frequent use of the application had a higher chance for smoking cessation at three (p < 0.001) and six months (p = 0.003).
    UNASSIGNED: The study showed that the developed smartphone application increases the likelihood for smoking cessation in individuals undergoing lung cancer LDCT screening.
    UNASSIGNED: AstraZeneca, Roche, and Cancer Foundation Finland.
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  • 文章类型: Journal Article
    背景:磁共振成像(MRI)教育在本科放射技术课程中至关重要。传统方法,如讲座和观察,不足以增强学生的理解。需要专门用于MRI学习的教育工具来提高学生的知识和理解。
    目的:通过智能手机开发MRI学习应用程序,并评估学生对应用的满意度及其作为放射技术学生的自学工具的有效性。
    方法:MRI学习应用程序是使用Thunkable平台开发的,涵盖MRI理论,设备,脉冲序列,参数,MRI安全性,和文物。招募了73名放射技术本科生,并将其分为应用程序用户(n=37)和非用户(n=36)。测试前和测试后,包括20道多项选择题,被创建并用于评估应用程序的有效性。然后使用学生t检验对测试前和测试后的分数进行分析和比较。最后,使用5分Likert量表的问卷评估用户对MRI学习应用的满意度.
    结果:app-users组的测试前和测试后的平均分数分别为12.65±3.24和13.95±3.41,非使用者组分别为12.94±2.99和13.94±2.74。使用MRI学习应用程序后,平均测试后评分显着增加(P=0.01)。然而,两组的前后测试平均得分无显著差异.所有参与者对申请都表示高度满意(4.32±0.11分)。
    结论:开发的用于MRI学习的智能手机应用程序具有增强学生知识的潜力。调查结果表明,用户的满意度很高。因此,MRI学习应用程序可以作为放射技术学生寻求加深对MRI相关科目理解的替代工具。
    BACKGROUND: Magnetic resonance imaging (MRI) education is crucial in the undergraduate radiological technology curriculum. Traditional approaches, such as lectures and observation, are insufficient for enhancing student understanding. Educational tools dedicated to MRI learning are needed to improve students\' knowledge and comprehension.
    OBJECTIVE: To develop an application for MRI learning via smartphones, and to assess students\' satisfaction with the application and its effectiveness as a self-learning tool for radiological technology students.
    METHODS: The MRI learning application was developed using the Thunkable platform, covering MRI theory, equipment, pulse sequences, parameters, MRI safety, and artifacts. Seventy-three undergraduate radiological technology students were recruited and divided into app-users (n = 37) and non-users (n = 36). Pre- and post-tests, comprising 20 multiple-choice questions, were created and utilized to assess the effectiveness of the application. Pre- and post-test scores were then analyzed and compared between the two groups using a student\'s t-test. Finally, user satisfaction with the MRI learning application was assessed using a questionnaire with a five-point Likert scale.
    RESULTS: The mean pre-test and post-test scores for the app-users group were 12.65 ± 3.24 and 13.95 ± 3.41, respectively, while those for the non-users group were 12.94 ± 2.99 and 13.94 ± 2.74, respectively. The mean post-test score was significantly increased after using the MRI learning application (P = 0.01). However, there was no significant difference in the mean scores of the pre- and post-tests between the two groups. All participants expressed a high level of satisfaction with the application (4.32 ± 0.11 points).
    CONCLUSIONS: The developed smartphone application for MRI learning has the potential to enhance students\' knowledge. The survey results indicated a high level of satisfaction among users. Thus, the MRI learning application could serve as an alternative tool for radiological technology students seeking to deepen their understanding of MRI-related subjects.
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  • 文章类型: Journal Article
    尽管糖尿病技术取得了显著进步,大多数系统仍然需要估计膳食碳水化合物(CHO)含量以用于进餐时间胰岛素输送。新兴的智能手机应用程序可能会消除这种需求,但与患者估计相关的表现数据仍然很少。
    目的是评估两种商业CHO估算应用的准确性,SNAQ和卡路里妈妈,并将他们的表现与1型糖尿病患者(T1D)的估计准确性进行比较。
    将53名T1D患者(年龄≥16岁)的碳水化合物估计值与SNAQ(食物识别定量)和卡路里妈妈(食物识别可调节标准份量)的估计值进行了比较。在医院厨房准备了26顿熟食。每位参与者在没有帮助的情况下估计了三种不同大小的两餐的CHO含量。然后,参与者在一餐中使用SNAQ进行CHO定量,在另一餐中使用卡路里妈妈(所有三种尺寸)。准确性是估计值与真实CHO含量的偏差(重量乘以配方数据库中的营养事实)。此外,使用Mars-G问卷对申请进行了评级。
    参与者的平均值±标准偏差(SD)绝对误差为21±21.5g(71±72.7%)。卡路里妈妈的平均绝对误差为24±36.5g(81.2±123.4%)。平均绝对误差为13.1±11.3g(44.3±38.2%),SNAQ优于患者和卡路里妈妈的估计准确性(两者P>.05)。误差一致性(由参与者内部SD量化)在方法之间没有显着差异。
    SNAQ可能为T1D患者提供有效的CHO评估支持,特别是那些具有较大或不一致的CHO估计误差的。其对葡萄糖控制的影响仍有待评估。
    UNASSIGNED: Despite remarkable progress in diabetes technology, most systems still require estimating meal carbohydrate (CHO) content for meal-time insulin delivery. Emerging smartphone applications may obviate this need, but performance data in relation to patient estimates remain scarce.
    UNASSIGNED: The objective is to assess the accuracy of two commercial CHO estimation applications, SNAQ and Calorie Mama, and compare their performance with the estimation accuracy of people with type 1 diabetes (T1D).
    UNASSIGNED: Carbohydrate estimates of 53 individuals with T1D (aged ≥16 years) were compared with those of SNAQ (food recognition + quantification) and Calorie Mama (food recognition + adjustable standard portion size). Twenty-six cooked meals were prepared at the hospital kitchen. Each participant estimated the CHO content of two meals in three different sizes without assistance. Participants then used SNAQ for CHO quantification in one meal and Calorie Mama for the other (all three sizes). Accuracy was the estimate\'s deviation from ground-truth CHO content (weight multiplied by nutritional facts from recipe database). Furthermore, the applications were rated using the Mars-G questionnaire.
    UNASSIGNED: Participants\' mean ± standard deviation (SD) absolute error was 21 ± 21.5 g (71 ± 72.7%). Calorie Mama had a mean absolute error of 24 ± 36.5 g (81.2 ± 123.4%). With a mean absolute error of 13.1 ± 11.3 g (44.3 ± 38.2%), SNAQ outperformed the estimation accuracy of patients and Calorie Mama (both P > .05). Error consistency (quantified by the within-participant SD) did not significantly differ between the methods.
    UNASSIGNED: SNAQ may provide effective CHO estimation support for people with T1D, particularly those with large or inconsistent CHO estimation errors. Its impact on glucose control remains to be evaluated.
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  • 文章类型: Journal Article
    通过智能手机医疗保健应用程序(应用程序)进行的饮食和身体活动干预措施最近已成为减肥的有效方法。然而,导致成功减肥的具体因素仍不确定.我们对68名超重和肥胖的日本成年人进行了为期三个月的基线特征和应用程序使用频率分析,这些成年人在先前的随机对照试验中被分配到干预组。Logistic回归分析显示,在基线时养成步行习惯与成功减肥之间存在负相关(OR:0.248;p=0.018)。定义为初始重量减少3%。此外,较低的步行速度和家族病史被确定为成功减重的潜在预测因素.这些发现提供了通过我们的智能手机应用程序成功减肥的个人概况的见解,为未来医疗保健应用程序的开发提供有价值的指导。
    Dietary and physical activity interventions through smartphone healthcare applications (apps) have recently surged in popularity as effective methods for weight loss. However, the specific factors contributing to successful weight loss remain uncertain. We conducted an analysis of baseline characteristics and app usage frequencies over three months among 68 Japanese adults with overweight and obesity who were assigned to the intervention group in a previous randomized controlled trial. Logistic regression analysis revealed a negative association (OR: 0.248; p = 0.018) between having a walking habit at baseline and successful weight loss, defined as a 3% reduction in initial weight. Additionally, slower walking speeds and family medical history were identified as potential predictors of successful weight loss. These findings offer insights into the profile of individuals who achieve success in weight loss through our smartphone app, providing valuable guidance for the development of future healthcare apps.
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  • 文章类型: Journal Article
    背景:在家中可用的用于捕获面部图像以跟踪皮肤质量变化和评估护肤治疗的方法有限。在这项研究中,我们开发了一个智能手机摄像头应用程序(app),用于个性化的面部美学监控。
    方法:利用面部标志检测的面部对齐指示器(FAIN)系统,一种人工智能技术,估计面部的关键部位,在应用程序中实现,以在图像捕获期间保持一致的面部外观。FAIN系统由固定目标指示器和对齐指示器组成,该指示器根据用户的面部位置动态改变其形状,尺寸,和取向。用户对齐他们的脸,使对齐指示器与固定的目标指示器相匹配,并且在实现对准时自动捕获图像。
    结果:我们通过分析几何和色度数据,调查了该应用程序在确保面部外观一致方面的有效性。利用了来自捕获的面部的几何信息和来自施加到面部的贴纸的色度数据。L*的变异系数(CV),a*,与色度计测量的值相比,贴纸的b*值更高,具有14.9倍的CV,8.14倍,L*为4.41倍,a*,b*,分别。为了评估该应用程序用于面部美学监测的可行性,我们使用肤色贴纸追踪参与者脸颊上伪肤色的变化.因此,我们观察到最小的色差ΔEab为1.901,这可以被认为是使用app获取的图像进行实验验证的检测限。
    结论:虽然当前的监测方法是一种相对定量的方法,它有助于对护肤治疗进行循证评估。
    BACKGROUND: Methods available at home for capturing facial images to track changes in skin quality and evaluate skincare treatments are limited. In this study, we developed a smartphone camera application (app) for personalized facial aesthetic monitoring.
    METHODS: A face alignment indicators (FAIN) system utilizing facial landmark detection, an artificial intelligence technique, to estimate key facial parts, was implemented into the app to maintain a consistent facial appearance during image capture. The FAIN system is composed of a fixed target indicator and an alignment indicator that dynamically changes its shape according to the user\'s face position, size, and orientation. Users align their faces to match the alignment indicator with the fixed target indicator, and the image is automatically captured when alignment is achieved.
    RESULTS: We investigated the app\'s effectiveness in ensuring a consistent facial appearance by analyzing both geometric and colorimetric data. Geometric information from captured faces and colorimetric data from stickers applied to the faces were utilized. The coefficients of variation (CVs) for the L*, a*, and b* values of the stickers were higher compared to those measured by a colorimeter, with CVs of 14.9 times, 8.14 times, and 4.41 times for L*, a*, and b*, respectively. To assess the feasibility of the app for facial aesthetic monitoring, we tracked changes in pseudo-skin color on the cheek of a participant using skin-colored stickers. As a result, we observed the smallest color difference ∆Eab of 1.901, which can be considered as the experimentally validated detection limit using images acquired by the app.
    CONCLUSIONS: While the current monitoring method is a relative quantification approach, it contributes to evidence-based evaluations of skincare treatments.
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  • 文章类型: Case Reports
    目的:原型“OldenburgerLogopädieApp”(OLA)旨在支持复发性麻痹患者的语音治疗,例如陪伴家庭作业或作为由于辍学而导致的常规治疗的短期替代品,例如在COVID-19大流行期间。治疗言语和语言病理学家(SLP)解锁适用于各自患者的视频,其中SLP指导个人练习。该应用程序可以在没有信息技术知识或详细说明的情况下使用。
    方法:通过可用性测试电池评估原型的可用性(AttrakDiff问卷,系统可用性量表,网站的视觉美学清单问卷)和非正式访谈从患者和SLP的角度。
    结果:验收,可用性,用户体验,自我描述,OLA的用户行为始终如一,大多被评为阳性。两个用户组都将OLA评为实用且易于使用(例如,系统可用性量表:“实用”(同意:17849.5%),“使用麻烦”(合计:强烈不同意:17860.0%)。然而,应用程序的单调布局以及教学和锻炼视频应在下一个编辑步骤中进行修改。语音治疗应用程序的相关标准概述,关于设计和功能,是从结果中得出的。
    结论:这种针对语音应用程序可用性的面向用户的反馈为进一步开发基于人工智能的创新后续应用程序LAOLA提供了概念证明和基础。在未来,它应该是可能的,以支持所有的声音障碍的治疗与这样的应用程序。为了进一步开发语音应用,还应调查培训的治疗内容和有效性。
    OBJECTIVE: The prototype \"Oldenburger Logopädie App\" (OLA) was designed to support voice therapy for patients with recurrent paresis, such as to accompany homework or as a short-term substitute for regular therapy due to dropouts, such as during the COVID-19 pandemic. The treating speech and language pathologists (SLPs) unlocks videos individually applicable to the respective patients, in which the SLPs instruct the individual exercises. The app can be used without information technology knowledge or detailed instructions.
    METHODS: The prototype\'s usability was evaluated through a usability test battery (AttrakDiff questionnaire, System Usability Scale, Visual Aesthetics of Websites Inventory questionnaire) and informal interviews from the perspective of patients and SLPs.
    RESULTS: The acceptance, usability, user experience, self-descriptiveness, and user behavior of OLA were consistently given and mostly rated as positive. Both user groups rated OLA as practical and easy to use (eg, System Usability Scale: \"practical\" (agree: ∅ 49.5%), \"cumbersome to use\" (total: strongly disagree: ∅ 60.0%). However, the monotonous layout of the app and the instructional and exercise videos should be modified in the next editing step. An overview of relevant criteria for a voice therapy app, regarding design and functions, was derived from the results.
    CONCLUSIONS: This user-oriented feedback on the usability of the voice app provides the proof of concept and the basis for the further development of the Artificial intelligence-based innovative follow-up app LAOLA. In the future, it should be possible to support the treatment of all voice disorders with such an app. For the further development of the voice app, the therapeutic content and the effectiveness of the training should also be investigated.
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  • 文章类型: Journal Article
    背景:轻度认知障碍(MCI)涉及超出典型年龄相关变化的认知下降,但没有显著的日常活动中断。它可以涵盖各种认知领域,因为MCI的原因是多种多样的。MCI以及常见的共病神经精神疾病如抑郁和焦虑会影响个体的生活质量。早期干预至关重要,计算机认知训练(cCT)是一种既定的治疗方法。本文介绍了NeuroNationMED有效性研究的方案,评估MCI患者的自我管理移动cCT干预(“NeuroNationMED”),以评估认知领域的训练效果,健康能力,神经精神症状,心理健康,和一般的应用程序可用性。
    方法:该研究方案提出了一项单盲多中心随机对照试验,该试验将在德国和卢森堡的六个研究中心进行。我们纳入了患有MCI的成年人(现有F06.7ICD-10-GM诊断和TICS≥21和≤32)。干预小组将使用手机,多域CT(“NeuroNationMED”)12周。同时,等待名单对照组将接受标准医疗护理或不接受护理。志愿者的资格将通过电话筛选来确定。基线检查完成后,患者将以2:1的比例随机分配到其中一种实验条件.总的来说,286名参与者将被纳入本研究。主要结果是通过神经心理学评估电池的筛选模块的指标得分来衡量的认知表现的变化。次要结果是认知失败问卷的变化,医院焦虑抑郁量表,Health-49,健康素养问卷,在其他人中。所有主要和次要结果将在基线和分配后12周后进行评估。此外,干预组将接受系统可用性量表的评估,和NeuroNationMED应用程序的训练数据将被分析。
    结论:本研究旨在评估移动自给cCT在增强诊断为MCI的个体认知能力方面的有效性。如果调查结果证实了NeuroNationMED应用程序的有效性,由于可及性,它可能会为MCI患者的护理管理带来可能的好处,成本效益,以及它提供的基于家庭的设置。具体来说,cCT程序可以为患者提供个性化的认知训练,教育资源,和放松技巧,使参与者能够在没有进一步监督的情况下在家中独立参与认知训练课程。
    背景:德国临床试验注册DRKS00025133。2021年11月5日注册。
    BACKGROUND: Mild cognitive impairment (MCI) involves cognitive decline beyond typical age-related changes, but without significant daily activity disruption. It can encompass various cognitive domains as the causes of MCI are diverse. MCI as well as frequent comorbid neuropsychiatric conditions like depression and anxiety affect individuals\' quality of life. Early interventions are essential, and computerized cognitive training (cCT) is an established treatment method. This paper presents the protocol for the NeuroNation MED Effectiveness Study, evaluating the self-administered mobile cCT intervention (\"NeuroNation MED\") in individuals with MCI to assess training effects on cognitive domains, health competence, neuropsychiatric symptoms, psychological well-being, and the general application usability.
    METHODS: This study protocol presents a single-blinded multicenter randomized controlled trial that will be carried out in six study centers in Germany and Luxembourg. We included adults with MCI (existing F06.7 ICD-10-GM diagnosis and TICS ≥ 21 and ≤ 32). The intervention group will use a mobile, multi-domain cCT (\"NeuroNation MED\") for 12 weeks. Meanwhile, the wait list control group will receive standard medical care or no care. The eligibility of volunteers will be determined through a telephone screening. After completion of the baseline examination, patients will be randomly assigned to one of the experimental conditions in a 2:1 ratio. In total, 286 participants will be included in this study. The primary outcome is the change of cognitive performance measured by the index score of the screening module of the Neuropsychological Assessment Battery. Secondary outcomes are changes in the Cognitive Failures Questionnaire, Hospital Anxiety and Depression Scale, Health-49, Health Literacy Questionnaire, among others. All of the primary and secondary outcomes will be assessed at baseline and after the 12-week post-allocation period. Furthermore, the intervention group will undergo an assessment of the System Usability Scale, and the training data of the NeuroNation MED application will be analyzed.
    CONCLUSIONS: This study aims to assess the effectiveness of a mobile self-administered cCT in enhancing cognitive abilities among individuals diagnosed with MCI. Should the findings confirm the effectiveness of the NeuroNation MED app, it may confer possible benefits for the care management of patients with MCI, owing to the accessibility, cost-effectiveness, and home-based setting it provides. Specifically, the cCT program could provide patients with personalized cognitive training, educational resources, and relaxation techniques, enabling participants to independently engage in cognitive training sessions at home without further supervision.
    BACKGROUND: German Clinical Trials Register DRKS00025133. Registered on November 5, 2021.
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  • 文章类型: Journal Article
    城市是垃圾污染的主要来源。确定城市中塑料垃圾的丰度和组成对于有效的污染管理至关重要,环境保护,城市可持续发展。因此,在这里,提出了一种多学科方法来量化和分类城市环境中垃圾的丰度。在本研究中,通过Pirika智能手机应用程序集成了垃圾数据收集,并基于深度学习进行了图像分析。Pirika于2018年5月推出,到目前为止,已经收集了大约一百万张图像。视觉分类显示,最常见的垃圾类型是罐头,塑料袋,塑料瓶,烟头,香烟盒,和卫生口罩,按这个顺序。前六类约占总数的百分之八十,而前三类占成像垃圾总数的60%以上。开发了一种深度学习图像处理算法来自动识别前六个垃圾类别。该模型得出的准确率和召回率均高于75%,能够对垃圾进行适当的分类。还使用由智能手机应用程序与图像同时获取的位置数据,在地图上绘制了从自动图像处理得出的垃圾数量。最后,这项研究表明,智能手机应用程序和基于深度学习的图像处理支持的公民科学可以实现可视化,量化,以及城市街道垃圾的表征。
    Cities are a major source of litter pollution. Determination of the abundance and composition of plastic litter in cities is imperative for effective pollution management, environmental protection, and sustainable urban development. Therefore, here, a multidisciplinary approach to quantify and classify the abundance of litter in urban environments is proposed. In the present study, litter data collection was integrated via the Pirika smartphone application and conducted image analysis based on deep learning. Pirika was launched in May 2018 and, to date, has collected approximately one million images. Visual classification revealed that the most common types of litter were cans, plastic bags, plastic bottles, cigarette butts, cigarette boxes, and sanitary masks, in that order. The top six categories accounted for approximately 80 % of the total, whereas the top three categories accounted for more than 60 % of the total imaged litter. A deep-learning image processing algorithm was developed to automatically identify the top six litter categories. Both precision and recall derived from the model were higher than 75 %, enabling proper litter categorization. The quantity of litter derived from automated image processing was also plotted on a map using location data acquired concurrently with the images by the smartphone application. Conclusively, this study demonstrates that citizen science supported by smartphone applications and deep learning-based image processing can enable the visualization, quantification, and characterization of street litter in cities.
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  • 文章类型: Journal Article
    易于使用且可靠的工具对于具有步态病理的人的步态评估至关重要。本研究旨在评估OneStep智能手机应用程序与C-Mill-VR+跑步机(Motek,Nederlands),在接受单侧下肢残疾康复的患者中。从跑步机和两部智能手机中提取时空步态参数,一条腿上。使用皮尔逊相关性评估设备间可靠性,集群内相关系数(ICC),和科恩的d,比较应用程序的读数从两个电话。通过比较从每个手机到跑步机的读数来评估有效性。28名患者完成研究,中位年龄为45.5岁,61%为男性。电话之间的ICC显示出高相关性(r=0.89-1)和良好到出色的可靠性(ICC范围,0.77-1)对于所有检查的步态参数。手机和跑步机之间的相关性大多高于0.8。每部手机和跑步机之间的ICC对所有步态参数(范围,0.58-1)。只有“受损腿的步长”显示出差到好的有效性(范围,0.37-0.84)。对于所有参数,科恩的d效应大小都很小(d<0.5)。研究的应用证明了单侧下肢残疾患者时空步态评估的良好信度和效度。
    An easy-to-use and reliable tool is essential for gait assessment of people with gait pathologies. This study aimed to assess the reliability and validity of the OneStep smartphone application compared to the C-Mill-VR+ treadmill (Motek, Nederlands), among patients undergoing rehabilitation for unilateral lower extremity disability. Spatiotemporal gait parameters were extracted from the treadmill and from two smartphones, one on each leg. Inter-device reliability was evaluated using Pearson correlation, intra-cluster correlation coefficient (ICC), and Cohen\'s d, comparing the application\'s readings from the two phones. Validity was assessed by comparing readings from each phone to the treadmill. Twenty-eight patients completed the study; the median age was 45.5 years, and 61% were males. The ICC between the phones showed a high correlation (r = 0.89-1) and good-to-excellent reliability (ICC range, 0.77-1) for all the gait parameters examined. The correlations between the phones and the treadmill were mostly above 0.8. The ICC between each phone and the treadmill demonstrated moderate-to-excellent validity for all the gait parameters (range, 0.58-1). Only \'step length of the impaired leg\' showed poor-to-good validity (range, 0.37-0.84). Cohen\'s d effect size was small (d < 0.5) for all the parameters. The studied application demonstrated good reliability and validity for spatiotemporal gait assessment in patients with unilateral lower limb disability.
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