traffic

交通
  • 文章类型: Journal Article
    TRPM4是钙激活的非选择性阳离子通道,不透Ca2+,在神经元中,它与兴奋性的调节和持续的放电有关。胆碱能刺激也涉及兴奋性的变化,导致神经元的放电频率增加,然而,目前尚不清楚TRPM4是否参与胆碱能引起的放电频率增加.这里使用膜片钳电生理学的组合,Ca2+成像,免疫荧光,光漂白后的荧光恢复(FRAP)和药理学方法,我们证明了卡巴胆碱(Cch)增加了发射频率,细胞内Ca2和使用9-Ph和CBA的TRPM4抑制降低了放电频率,并降低了Cch在培养的皮质锥体神经元中诱导的细胞内Ca2的峰值。此外,我们确定胆碱能刺激会降低TRPM4的再循环并稳定血浆膜中的TRPM4.我们的结果共同表明胆碱能刺激以TRPM4依赖的方式增加放电,并且还增加了TRPM4在膜中的稳定性,这表明TRPM4被锁定在膜的微区中,可能是信号或细胞骨架蛋白复合物。
    TRPM4 is a calcium activated non-selective cation channel, impermeable to Ca2+, in neurons it has been implicated in the regulation of the excitability and in the persistent firing. Cholinergic stimulation is also implicated in changes in excitability that leads neurons to an increased firing frequency, however it is not clear whether TRPM4 is involved in the cholinergic-induced increase in firing frequency. Here using a combination of patch clamp electrophysiology, Ca2+ imaging, immunofluorescence, fluorescence recovery after photobleaching (FRAP) and pharmacological approach, we demonstrate that carbachol (Cch) increases firing frequency, intracellular Ca2+ and that TRPM4 inhibition using 9-Ph and CBA reduces firing frequency and decreases the peak in intracellular Ca2+ induced by Cch in cortical pyramidal neurons in culture. Moreover, we determined that cholinergic stimulation reduces TRPM4 recycling and stabilizes TRPM4 in the plasma membrane. Together our results indicate that cholinergic stimulation increases firing in a TRPM4 dependent manner, and also increases the TRPM4 stability in the membrane, suggesting that TRPM4 is locked in microdomains in the membrane, possibly signaling or cytoskeleton proteins complexes.
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  • 文章类型: Journal Article
    视觉语言模型在各个领域都很有趣,包括自动驾驶,计算机视觉技术可以准确检测道路使用者,但是车辆有时无法理解上下文。这项研究检查了GPT-4V在预测人类评估的交通图像中“风险”水平方面的有效性。我们使用了从移动车辆上拍摄的210张静态图像,每个人以前被大约650人评级。基于心理测量学建构理论,运用自我一致性提示方法的见解,我们提出了三个假设:(I)在有效相同的条件下重复提示增加了有效性,(ii)与使用单个提示相比,改变提示文本并提取总分增加了有效性,和(Iii)在多元回归分析中,结合对象检测特征,除了基于GPT-4V的风险评级,显著有助于提高模型的有效性。有效性通过与人类风险评分的相关系数量化,在210张图片中。结果证实了这三个假设。最终的有效性系数为r=0.83,表明可以使用AI高度准确地预测人口水平的人类风险。研究结果表明,GPT-4V必须以等同于人类填写多项目问卷的方式进行提示。
    Vision-language models are of interest in various domains, including automated driving, where computer vision techniques can accurately detect road users, but where the vehicle sometimes fails to understand context. This study examined the effectiveness of GPT-4V in predicting the level of \'risk\' in traffic images as assessed by humans. We used 210 static images taken from a moving vehicle, each previously rated by approximately 650 people. Based on psychometric construct theory and using insights from the self-consistency prompting method, we formulated three hypotheses: (i) repeating the prompt under effectively identical conditions increases validity, (ii) varying the prompt text and extracting a total score increases validity compared to using a single prompt, and (iii) in a multiple regression analysis, the incorporation of object detection features, alongside the GPT-4V-based risk rating, significantly contributes to improving the model\'s validity. Validity was quantified by the correlation coefficient with human risk scores, across the 210 images. The results confirmed the three hypotheses. The eventual validity coefficient was r = 0.83, indicating that population-level human risk can be predicted using AI with a high degree of accuracy. The findings suggest that GPT-4V must be prompted in a way equivalent to how humans fill out a multi-item questionnaire.
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  • 文章类型: Journal Article
    背景:创伤在伊朗是一个重要的公共卫生问题,死亡率和发病率高。这项研究旨在评估沙鲁德创伤患者的概况,伊朗。研究设计:横断面研究。
    方法:该研究涉及在Shahroud的ImamHossein医院符合特定标准的创伤患者,伊朗,在2016年至2023年之间,使用伊朗国家创伤登记处(NTRI)。采用卡方检验和事后分析分析损伤特征与损伤原因的关系。Quintile回归模型评估了人口统计学和临床变量与住院时间的关联。
    结果:在3513例创伤患者中,与跌倒(0.3%)相比,格拉斯哥昏迷量表(GCS)中道路交通事故(RTC)的受伤比例在9~12(1.7%)之间(P<0.001).与RTC(17.1%)相比,跌倒引起的伤害严重程度评分(ISS)为9至15(22.7%)的中度病例更多(P<0.001)。与RTC相关的损伤需要更多的通气(2.7%)和重症监护病房(ICU)入院(11.1%),而不是跌倒(P<0.001)。在调整了年龄之后,GCS,ISS,和身体区域,跌倒的中位住院时间比RTC短9小时(95%CI=-16.2,-1.8).
    结论:在RTC和跌倒之间观察到了显著的损伤模式差异。RTC的损伤频率较高,导致GCS评分在9到12之间,而跌倒的ISS评分中等的频率较高。此外,RTC相关损伤患者需要更多的机械通气和ICU入住.此外,在对各种因素进行调整后,与跌倒相关损伤患者相比,RTC相关损伤患者的住院时间明显更长.
    BACKGROUND: Trauma is a significant public health concern in Iran, with high mortality and morbidity rates. This study aimed to assess trauma patients\' profiles in Shahroud, Iran. Study Design: A cross-sectional study.
    METHODS: The study involved trauma patients who met specific criteria at Imam Hossein hospital in Shahroud, Iran, between 2016 and 2023, using the National Trauma Registry of Iran (NTRI). The relationship between injury characteristics and the cause of injury was analyzed using chi-square test and post hoc analysis. Quintile regression models assessed the association of demographic and clinical variables with length of stay.
    RESULTS: Among 3513 trauma patients, road traffic crashes (RTCs) had a higher percentage of injuries with the Glasgow Coma Scale (GCS) between 9 and 12 (1.7%) compared to falls (0.3%) (P<0.001). Falls caused more moderate cases with injury severity scores (ISS) ranging from 9 to 15 (22.7%) than RTCs (17.1%) (P<0.001). RTC-related injuries required more ventilation (2.7%) and intensive care unit (ICU) admissions (11.1%) than falls (P<0.001). After adjusting for age, GCS, ISS, and body region, fall had a median length of stay nine hours shorter than RTCs (95% CI = -16.2, -1.8).
    CONCLUSIONS: Significant injury pattern differences were observed between RTCs and falls. RTCs had higher frequencies of injuries resulting in GCS scores between 9 and 12, while falls had higher frequencies of moderate ISS scores. In addition, patients with RTC-related injuries required more mechanical ventilation and ICU admissions. Moreover, after adjusting for various factors, patients with RTC-related injuries had a significantly longer hospital stay compared to those with fall-related injuries.
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  • 文章类型: Journal Article
    背景:哮喘患者不成比例地受到空气污染的影响,症状加重,药物使用,入院,和死亡的风险。迄今为止,一直关注废气排放,但与交通相关的空气污染(TRAP)也可能来自轮胎的机械磨损,刹车,和路面。因此,我们创建了一项研究,旨在研究非废气排放(NEEs)对哮喘成人肺功能和气道免疫状态的急性影响。
    方法:随机三条件交叉小组设计将在伦敦的三个地点使用随机顺序的2.5小时间歇循环方案暴露患有哮喘的成年人。选择以在TRAP中的NEE组件中提供最大的对比度。将使用示波法监测肺功能,呼出气一氧化氮,和肺活量测定(主要结果是一秒内的用力呼气量)。使用鼻灌洗在上呼吸道中测量炎症和空气中金属暴露的生物标志物。将使用问卷监测症状反应。废气和非废气浓度的来源将通过在暴露地点进行的高时间分辨率化学措施的正矩阵分解,使用来源分配来确定。
    结论:总的来说,这项研究将为我们提供有关环境PM2.5和PM10中NEE成分对健康的影响的有价值的信息,同时建立一种生物学机制来帮助了解当前的流行病学观察。
    BACKGROUND: People living with asthma are disproportionately affected by air pollution, with increased symptoms, medication usage, hospital admissions, and the risk of death. To date, there has been a focus on exhaust emissions, but traffic-related air pollution (TRAP) can also arise from the mechanical abrasion of tyres, brakes, and road surfaces. We therefore created a study with the aim of investigating the acute impacts of non-exhaust emissions (NEEs) on the lung function and airway immune status of asthmatic adults.
    METHODS: A randomised three-condition crossover panel design will expose adults with asthma using a 2.5 h intermittent cycling protocol in a random order at three locations in London, selected to provide the greatest contrast in the NEE components within TRAP. Lung function will be monitored using oscillometry, fractional exhaled nitric oxide, and spirometry (the primary outcome is the forced expiratory volume in one second). Biomarkers of inflammation and airborne metal exposure will be measured in the upper airway using nasal lavage. Symptom responses will be monitored using questionnaires. Sources of exhaust and non-exhaust concentrations will be established using source apportionment via the positive matrix factorisation of high-time resolution chemical measures conducted at the exposure sites.
    CONCLUSIONS: Collectively, this study will provide us with valuable information on the health effects of NEE components within ambient PM2.5 and PM10, whilst establishing a biological mechanism to help contextualise current epidemiological observations.
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  • 文章类型: Journal Article
    研究的目的是评估受工业人为压力影响的地区土壤中的锑源的污染水平和识别:运输,冶金和电气废物回收利用。土壤磁力测量的组合,使用原子光谱(ICP-OES和ICP-MS)进行化学分析,Sb分馏分析,统计分析(皮尔逊相关矩阵,因子分析)以及地质累积指数,污染负荷指数,和Sb/As因子不仅允许评估土壤污染程度,还可以对不同的Sb源进行综合鉴定。结果表明,研究对象附近的土壤具有较高的磁化率,因此,高含量的潜在有毒元素。污染最严重的地区是电气废物处理厂附近。研究表明,道路交通和制动块磨损的影响,即一般的交通人为压迫,锑含量对周围土壤影响不大。大量的Pb,Zn,在锌铅矿石处理后,在堆附近收集的土壤中发现了As和Cd,堆附近的平均锑(11.31mgkg-1)含量低于电气和电子废物处理厂周围地区,但仍然很高。研究土壤中的锑已复员,主要与残留部分有关。
    The aim of the study was an assessment of the pollution level and identification of the antimony sources in soils in areas subjected to industrial anthropopressure from: transport, metallurgy and electrical waste recycling. The combination of soil magnetometry, chemical analyzes using atomic spectrometry (ICP-OES and ICP-MS), Sb fractionation analysis, statistical analysis (Pearson\'s correlation matrix, factor analysis) as well as Geoaccumulation Index, Pollution Load Index, and Sb/As factor allowed not only the assessment of soil contamination degree, but also comprehensive identification of different Sb sources. The results indicate that the soil in the vicinity of the studied objects was characterized by high values of magnetic susceptibility and thus, high contents of potentially toxic elements. The most polluted area was in the vicinity of electrical waste processing plants. Research has shown that the impact of road traffic and wearing off brake blocks, i.e. traffic anthropopression in general, has little effect on the surrounding soil in terms of antimony content. Large amounts of Pb, Zn, As and Cd were found in the soil collected in the vicinity of the heap after the processing of zinc-lead ores, the average antimony (11.31 mg kg-1) content was lower in the vicinity of the heap than in the area around the electrical and electronic waste processing plant, but still very high. Antimony in the studied soils was demobilized and associated mainly with the residual fraction.
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  • 文章类型: Journal Article
    全世界青少年发病率和死亡率的主要原因之一是机动车事故(MVA)。安全带的使用显着降低了MVA的死亡和伤害。这项研究的目的是调查青少年安全带的使用方式及其与危险行为的关系。这项研究是在两家医疗机构进行的,他们的非移民和有文化的青少年年龄在12-18岁之间。人口统计,安全带使用,并通过问卷调查收集冒险行为。726名青少年(422名女孩和304名男孩),平均年龄为176.7±23.37个月。父母的教育水平和前排安全带的使用被发现是相关的。与非用户相比,安全带使用者表现出较低的风险评分(总计,交通,实质,和社交)。交通风险显著预测了安全带的使用,根据逻辑回归。社会经济地位较高的城市参与者使用安全带的频率较高。因此,研究发现,表现出更多危险行为的青少年使用安全带的频率较低,而使用安全带与社会经济水平和父母教育水平相关。人们认为,对这一主题进行的基于人群的研究很重要。
    The one of the leading causes of adolescent morbidity and mortality worldwide is motor vehicle accidents (MVA). The use of seat belts significantly lowers MVA fatalities and injuries. The aim of this study is to investigate adolescent seat belt usage patterns and relation with risky behaviors. The study conducted at two medical institutions with non-immigrant and literate adolescents aged 12-18. Demographics, seat belt use, and risk-taking behavior were collected through questionnaires. 726 teenagers (422 girls and 304 boys) with an average age of 176.7 ± 23.37 months participated in the study. Parents\' educational levels and front-seat belt use have been found to be correlated. Comparatively to non-users, seat belt users demonstrated lower risk scores (total, traffic, substance, and social). The use of seat belts was significantly predicted by traffic risk, according to logistic regression. The frequency of seatbelt use was higher among participants from cities with higher socioeconomic status. As a result, it was found that adolescents who exhibited more risky behaviors had a lower frequency of seat belt use and seat belt use was associated with socioeconomic level and parental education level. It is thought that population-based studies to be conducted on this subject are important.
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  • 文章类型: Journal Article
    新粒子形成(NPF)是大气气溶胶粒子的主要来源,包括云凝结核(CCN),按全球数字。先前的研究强调,与城市背景相比,NPF在路边的频率较低,但强度更高。这里,我们仔细检查了中欧城市背景和路边的NPF。我们表明,氧化有机分子(OOMs)的浓度在路边更大,OOMs与硫酸冷凝到新颗粒上足以解释这两个位置的生长。我们确定了迄今为止未报告的与流量相关的OOM源,在路边和背景的总OOM中占29%和16%,分别。严重的,这种迄今为止尚未发现的OOM源是城市NPF的重要组成部分。没有它们对增长率的贡献和随后对粒子存活的增强,在路边,NPF产生的>50nm颗粒的数量将减少21倍。因此,减少来自道路交通的碳氢化合物排放可以减少颗粒数量和CCN计数。
    New particle formation (NPF) is a major source of atmospheric aerosol particles, including cloud condensation nuclei (CCN), by number globally. Previous research has highlighted that NPF is less frequent but more intense at roadsides compared to urban background. Here, we closely examine NPF at both background and roadside sites in urban Central Europe. We show that the concentration of oxygenated organic molecules (OOMs) is greater at the roadside, and the condensation of OOMs along with sulfuric acid onto new particles is sufficient to explain the growth at both sites. We identify a hitherto unreported traffic-related OOM source contributing 29% and 16% to total OOMs at the roadside and background, respectively. Critically, this hitherto undiscovered OOM source is an essential component of urban NPF. Without their contribution to growth rates and the subsequent enhancements to particle survival, the number of >50 nm particles produced by NPF would be reduced by a factor of 21 at the roadside site. Reductions to hydrocarbon emissions from road traffic may thereby reduce particle numbers and CCN counts.
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  • 文章类型: Journal Article
    道路交通伤害(RTIs)是发达国家和发展中国家的主要健康问题之一。在伊朗,RTI是导致多年生命损失(YLL)的第一个主要原因。所以,本研究调查了伊朗RTI相关死亡率的11年趋势。
    这项研究是一项基于人群的横断面研究。全因死亡以及与RTI相关的死亡率数据是在2011-2021年期间从伊斯法罕的民事登记组织(CRO)和法律医疗机构(LMO)收集的。年中人口,因RTI而死亡的人数,RTI的粗和年龄标准化死亡率(每100,000人),计算并报告了研究期间按性别和事故年份划分的比例死亡率百分比。此外,使用连接点回归程序进行趋势分析。
    在研究期间,伊斯法罕省发生了11248人死于RTI。8,894例男性(79.03%),在15-39岁的人群中,男性和女性死亡人数最高。在男性中,2011-2015年标准化死亡率趋势下降(年度百分比变化=-6.76(CI95%:-2.53,-15.03)),而在2015-2021年,这一比例在增加(年度百分比变化=3.00(CI95%:0.63,9.87))。然而,在女性中没有观察到显著的趋势。
    本研究的结果表明,在11年期间,RTI的数量和标准化死亡率有所下降。似乎应用更严格的政策,提高全省道路质量,提高汽车质量,增加医院和院前医疗设施的数量可以有效减少RTI。
    UNASSIGNED: Road traffic injuries (RTIs) are one of the major health problems in developed and developing countries. In Iran, RTIs are the first leading cause of years of life lost (YLL). So, the present study investigated the 11-year trend of RTI- related mortalities in Iran.
    UNASSIGNED: This study was a population-based cross-sectional study. All-cause deaths as well as RTI-related mortalities\' data were collected from the Civil Registration Organization (CRO) and Legal medical organization (LMO) of Isfahan during 2011-2021. The mid-year population, number of deaths due to RTIs, the crude and age-standardized mortality (per 100,000) of RTIs, and the percentage of proportional mortality by sex and year of accident during the study period were calculated and reported. Also, trend analysis was done using join point regression program.
    UNASSIGNED: During the study period, 11,248 deaths occurred due to RTIs in Isfahan province. 8,894 cases were male (79.03%), the highest number of deaths in both male and female cases was reported in those aged 15-39 years. Among the males, trend of standardized mortality in 2011-2015 was decreasing (annual percentage changes = -6.76(CI 95%: -2.53, -15.03)), while in 2015-2021 it was increasing (annual percentage changes = 3.00 (CI 95%: 0.63, 9.87)). However, no significant trend was observed among females.
    UNASSIGNED: The findings of the present study showed that the number and standardized mortality rate of RTIs decreased during the 11-year period. It seems that applying stricter policies, improving the quality of the roads of the province, improving the quality of cars, and increasing the number of hospital and pre-hospital medical facilities can play an effective role in reducing RTIs.
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  • 文章类型: Journal Article
    目标:道路交通事故在全球范围内带来巨大的人力和经济成本,是一项全球性挑战。伊朗道路交通伤害发生率很高,给社会带来沉重负担。这项研究旨在预测伊朗到2030年道路交通伤害的未来负担,为政策制定和干预措施提供有价值的见解,以改善道路安全并降低相关的人力和经济成本。
    方法:这项分析研究利用了时间序列模型,特别是自回归积分移动平均(ARIMA)和人工神经网络(ANN),通过分析过去的数据来确定伊朗到2030年的模式和趋势,从而预测道路交通事故的负担。与患病率相关的所需数据,死亡,和残疾调整寿命年(DALYs)率从健康指标和评估研究所数据库中收集,并使用R软件和相关建模和统计分析软件包进行分析。
    结果:两种预测模型,ARIMA和ANN表明,所有道路交通伤害的患病率(每100,000人),除了摩托车手的道路伤害趋势几乎持平,保持在430左右,到2030年增加。基于这两个模型的估计,机动车和行人道路交通伤害导致的死亡率和DALY下降。对于机动车道路伤害,估计趋势减少到大约520个DALYs和10个死亡。此外,对于行人道路伤害,这些比率达到约300DALYs和6例死亡,根据模型。对于骑自行车的人和其他道路交通伤害,ANN模型预测的DALY率增加到近50和8,而ARIMA模型进行的预测显示出静态趋势,保持在40和大约6.5。此外,通过ANN模型预测死亡率的这些比率增加到0.6和0.1,而通过ARIMA模型进行的预测显示出静态趋势,保持在0.43和0.07。根据ANN模型,摩托车手的预计DALY和死亡率分别降至100和约2.7。另一方面,ARIMA模型的预测显示出静态趋势,率分别保持在200和约3.2。
    结论:道路交通伤害的患病率预计会增加,而道路交通伤害的死亡率和死亡率表现出不同的模式。有效的干预计划和安全措施对于预防和减少道路交通事故是必要的。应专门针对不同的行人群体设计和实施不同的干预措施,骑自行车的人,摩托车手,和机动车驾驶员。
    OBJECTIVE: Road traffic accidents pose a global challenge with substantial human and economic costs. Iran experiences a high incidence of road traffic injuries, leading to a significant burden on society. This study aims to predict the future burden of road traffic injuries in Iran until 2030, providing valuable insights for policy-making and interventions to improve road safety and reduce the associated human and economic costs.
    METHODS: This analytical study utilized time series models, specifically autoregressive integrated moving average (ARIMA) and artificial neural networks (ANNs), to predict the burden of road traffic accidents by analyzing past data to identify patterns and trends in Iran until 2030. The required data related to prevalence, death, and disability-adjusted life years (DALYs) rates were collected from the Institute for Health Metrics and Evaluation database and analyzed using R software and relevant modeling and statistical analysis packages.
    RESULTS: Both prediction models, ARIMA and ANNs indicate that the prevalence rates (per 100,000) of all road traffic injuries, except for motorcyclist road injuries which have an almost flat trend, remaining at around 430, increase by 2030. Based on estimations of both models, the rates of death and DALYs due to motor vehicle and pedestrian road traffic injuries decrease. For motor vehicle road injuries, estimated trends decrease to approximately 520 DALYs and 10 deaths. Also, for pedestrian road injuries these rates reached approximately 300 DALYs and 6 deaths, according to the models. For cyclists and other road traffic injuries, the predicted DALY rates by the ANN model increase to almost 50 and 8, while predictions conducted by the ARIMA model show a static trend, remaining at 40 and approximately 6.5. Moreover, these rates for the prediction of death rate by the ANN model increased to 0.6 and 0.1, while predictions conducted by the ARIMA model show a static trend, remaining at 0.43 and 0.07. According to the ANN model, the predicted rates of DALY and death for motorcyclists decrease to 100 and approximately 2.7, respectively. On the other hand, predictions made by the ARIMA model show a static trend, with rates remaining at 200 and approximately 3.2, respectively.
    CONCLUSIONS: The prevalence of road traffic injuries is predicted to increase, while the death and DALY rates of road traffic injuries show different patterns. Effective intervention programs and safety measures are necessary to prevent and reduce road traffic accidents. Different interventions should be designed and implemented specifically for different groups of pedestrians, cyclists, motorcyclists, and motor vehicle drivers.
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  • 文章类型: Published Erratum
    [这修正了文章DOI:10.3389/fimmu.2023.1332943。].
    [This corrects the article DOI: 10.3389/fimmu.2023.1332943.].
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