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Growth and yield performance of sorghum (Sorghum bicolor L.) crop under anthracnose stress in dryland crop-livestock farming system 旱地农牧联作系统下高梁作物在炭疽病胁迫下的生长和产量
Pub Date : 2022-08-25 DOI: 10.1017/exp.2022.12
Tessema Tesfaye Atumo, G. Mengesha
Abstract Dual-purpose sorghum response to anthracnose disease, growth, and yield was undertaken in Derashe and Arba Minch trial sites during March–June 2018 and 2019. Five sorghum varieties and Rara (local check) were arranged in a randomized complete block design with four replications. Variety Chelenko exhibited the tallest main crop plant height (430 cm) while Dishkara was the tallest (196.65 cm) at ratoon crop harvesting. Rara had a higher tiller number (main = 6.73, ratoon = 9.73) among the varieties. Dishkara and Chelenko varieties produced 50 and 10% more dry biomass yield (DBY) than the overall mean DBY, while Konoda produced 40% less. Although the anthracnose infestation was highest on the varieties Konoda (percentage severity index [PSI] = 20.37%) and NTJ_2 (PSI = 32.19%), they produced significantly (p < .001) higher grain yield (3.89 t/ha) than others. Under anthracnose pressure, Chelenko and Dishkara varieties are suggested for dry matter yield while NTJ_2 for grain yield production in the study area and similar agroecology.
于2018年3月至6月在Derashe和Arba Minch试验点进行了双用途高粱对炭疽病、生长和产量的响应研究。5个高粱品种和拉拉(局部对照)采用完全随机区组设计,每组4个重复。速生作物收获时,切连科品种主作物株高最高(430 cm),迪什卡拉品种最高(196.65 cm)。品种中拉拉分蘖数最高,主分蘖数为6.73,分蘖数为9.73。迪什卡拉(Dishkara)和切连科(Chelenko)品种的干生物量产量(DBY)比总体平均DBY高出50%和10%,而Konoda品种的干生物量产量(DBY)则低40%。虽然小野田(PSI = 20.37%)和NTJ_2 (PSI = 32.19%)的炭疽病发病率最高,但其产量(3.89 t/ hm2)显著高于其他品种(p < 0.001)。在炭疽病压力下,研究区和类似的农业生态条件下,干物质产量宜选用Chelenko和Dishkara品种,粮食产量宜选用NTJ_2品种。
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引用次数: 0
Neonatal visual assessment in congenital heart disease: A pilot study 先天性心脏病新生儿视力评估:一项初步研究
Pub Date : 2022-08-25 DOI: 10.1017/exp.2022.10
M. Feldmann, C. Hagmann, V. Bernet, W. Knirsch, B. Latal
Abstract This study assessed neonatal visual maturity in infants with congenital heart disease (CHD) and its predictive value for neurodevelopmental outcomes. Neonates with CHD underwent a standardized visual assessment before and after cardiopulmonary bypass surgery. Visual maturity was rated as normal versus abnormal by means of normative reference data. Twelve-month neurodevelopment was assessed with the Bayley-III. Twenty-five healthy controls served as the reference group. Neonatal visual assessment was performed in five neonates with CHD preoperatively and in 24 postoperatively. Only postoperative assessments were considered for further analysis. Median [IQR] age at assessment was 27.0 [21.5, 42.0] days of life in postoperative neonates with CHD and 24.0 [15.0, 32.0] in controls. Visual performance was within reference values in 87.5% in postoperative CHD versus 90.5% in healthy controls (p = 1.0). Visual maturity was not predictive of neurodevelopment at 12 months. These results demonstrate the limited feasibility and predictive value of neonatal visual assessments in CHD.
本研究评估先天性心脏病(CHD)患儿新生儿视觉成熟度及其对神经发育结局的预测价值。冠心病新生儿在体外循环手术前后进行了标准化的视力评估。通过规范的参考数据将视觉成熟度分为正常和异常。用Bayley-III评估12个月的神经发育。25名健康对照者作为参照组。对5例冠心病新生儿术前和24例术后进行新生儿视力评估。仅考虑术后评估进行进一步分析。评估时的中位[IQR]年龄为冠心病新生儿术后27.0[21.5,42.0]天,对照组为24.0[15.0,32.0]天。术后冠心病患者的视觉表现在参考值范围内的比例为87.5%,而健康对照组为90.5% (p = 1.0)。视觉成熟度不能预测12个月时的神经发育。这些结果表明新生儿视力评估在冠心病诊断中的可行性和预测价值有限。
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引用次数: 0
The development, and day-to-day variation, of a Military-Specific Auditory N-Back Task and Shoot-/Don’t -Shoot Task 军事特定听觉N-Back任务和射击/不射击任务的发展和日常变化
Pub Date : 2022-08-24 DOI: 10.1017/exp.2022.11
Christopher Vine, Sarah Coakley, Stephen Myers, S. Blacker, Oliver R. Runswick
Abstract During military operations, soldiers are required to successfully complete numerous physical and cognitive tasks concurrently. Understanding the typical variance in research tools that may be used to provide insight into the interrelationship between physical and cognitive performance is therefore highly important. This study assessed the inter-day variability of two military-specific cognitive assessments: a Military-Specific Auditory N-Back Task (MSANT) and a Shoot-/Don’t-Shoot Task (SDST) in 28 participants. Limits of agreement ±95% confidence intervals, standard error of the mean, and smallest detectable change were calculated to quantify the typical variance in task performance. All parameters within the MSANT and SDST demonstrated no mean difference for trial visit in either the seated or walking condition, with equivalency demonstrated for the majority of comparisons. Collectively, these data provided an indication of the typical variance in MSANT and SDST performance, while demonstrating that both assessments can be used during seated and walking conditions.
在军事行动中,士兵需要同时成功完成大量的身体和认知任务。因此,了解研究工具的典型差异可能用于深入了解身体和认知表现之间的相互关系是非常重要的。本研究评估了28名参与者的两项军事特异性认知评估:军事特异性听觉N-Back任务(MSANT)和射击/不射击任务(SDST)的日间变异性。计算一致性限±95%置信区间、均值标准误差和最小可检测变化,以量化任务表现的典型方差。MSANT和SDST中的所有参数在坐位或行走状态下均无显著差异,大多数比较均具有等效性。总的来说,这些数据提供了MSANT和SDST表现的典型差异的指示,同时表明这两种评估都可以在坐姿和行走状态下使用。
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引用次数: 0
Comparing the creamatocrit of human milk before and after long-term freezing 人乳长期冷冻前后乳脂压积的比较
Pub Date : 2022-08-24 DOI: 10.1017/exp.2022.9
M. Fujita, E. Brindle
Abstract Objectives The creamatocrit is a simple technique for estimating the lipid content of milk, widely adopted for clinical and research purposes. We evaluated the effect of long-term cryogenic storage on the creamatocrit for human milk. Methods Frozen and thawed milk specimens (n = 18) were subjected to the creamatocrit technique. The specimens were reanalyzed after long-term cryogenic storage (10 years at <70°C). The correlation between pre- and post-storage values was tested, and their differences were analyzed using the Bland–Altman plot. Results The pre- and post-storage values were highly correlated (r = 0.960, p < .0001). The Bland–Altman plot revealed a positive association between their differences and means (Pitman’s test r = 0.743, p < .001), suggesting the presence of nonconstant bias across the creamatocrit range. Long-term storage of human milk may introduce subtle bias to the creamatocrit in replicating pre-storage values. Further research should evaluate whether this bias is statistically correctable.
摘要目的奶油压积法是一种简单的估算牛奶脂质含量的技术,广泛应用于临床和研究。我们评估了长期低温储存对人乳的乳脂压积的影响。方法对18例冷冻和解冻乳标本进行奶油压积技术。标本在长期低温保存(<70°C保存10年)后重新分析。采用Bland-Altman图分析存储前后值的相关性和差异。结果存储前后值高度相关(r = 0.960, p < 0.0001)。Bland-Altman图显示其差异与平均值呈正相关(Pitman检验r = 0.743, p < .001),表明在整个奶油比压范围内存在非恒定偏差。人乳的长期储存可能会在复制储存前值时对乳脂压积产生微妙的偏差。进一步的研究应该评估这种偏差是否在统计上是可纠正的。
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引用次数: 1
Measuring statistical learning by eye-tracking 通过眼动追踪测量统计学习
Pub Date : 2022-08-15 DOI: 10.1017/exp.2022.8
Tamás Zolnai, Dominika Réka Dávid, O. Pesthy, Marton Nemeth, Mariann M. Kiss, Márton Nagy, D. Németh
Abstract Statistical learning—the skill to pick up probability-based regularities of the environment—plays a crucial role in adapting to the environment and learning perceptual, motor, and language skills in healthy and clinical populations. Here, we developed a new method to measure statistical learning without any manual responses. We used the Alternating Serial Reaction Time (ASRT) task, adapted to eye-tracker, which, besides measuring reaction times (RTs), enabled us to track learning-dependent anticipatory eye movements. We found robust, interference-resistant learning on RT; moreover, learning-dependent anticipatory eye movements were even more sensitive measures of statistical learning on this task. Our method provides a way to apply the widely used ASRT task to operationalize statistical learning in clinical populations where the use of manual tasks is hindered, such as in Parkinson’s disease. Furthermore, it also enables future basic research to use a more sensitive version of this task to measure predictive processing.
统计学习是一种获取基于概率的环境规律的技能,在适应环境和学习健康和临床人群的感知、运动和语言技能方面起着至关重要的作用。在这里,我们开发了一种新的方法来测量统计学习,而不需要任何手动响应。我们使用了交替连续反应时间(ASRT)任务,该任务适用于眼动仪,除了测量反应时间(RTs)外,还使我们能够跟踪学习依赖的预期眼动。我们在RT上发现了稳健的、抗干扰的学习;此外,在这项任务中,学习依赖的预期眼动是更敏感的统计学习指标。我们的方法提供了一种将广泛使用的ASRT任务应用于临床人群的统计学习的方法,在这些人群中,手工任务的使用受到阻碍,例如帕金森病。此外,它还使未来的基础研究能够使用该任务的更敏感版本来测量预测处理。
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引用次数: 2
Using network analysis to improve understanding and utility of the 10-item Autism-Spectrum Quotient 运用网络分析提高对10项自闭症谱系商的理解和运用
Pub Date : 2022-07-28 DOI: 10.1017/exp.2022.7
Lucy H. Waldren, L. A. Livingston, Florence Y N Leung, Punit Shah
Abstract The 10-item Autism-Spectrum Quotient (AQ10) is a measure of autistic traits used in research and clinical practice. Recently, the AQ10 has garnered critical attention, with research questioning its psychometric properties and clinical cutoff value. To help inform the utility of the measure, we conducted the first network analysis of the AQ10, with a view to gain a better understanding of its individual items. Using a large dataset of 6,595 participants who had completed the AQ10, we found strongest inter-subscale connections between communication, imagination, and socially relevant items. The nodes with greatest centrality concerned theory of mind differences. Together, these findings align with cognitive explanations of autism and provide clues about which AQ10 items show greatest utility for informing autism-related clinical practice.
10项自闭症谱系商(AQ10)是一种用于研究和临床实践的自闭症特征测量方法。最近,空气质量指数(AQ10)引起了广泛关注,有研究质疑它的心理测量特性和临床临界值。为协助了解这项措施的效用,我们对空气质素10进行了首次网络分析,以期更深入了解个别项目。使用6,595名完成了AQ10的参与者的大型数据集,我们发现沟通、想象力和社会相关项目之间存在最强的子尺度间联系。中心性最大的节点与心理差异理论有关。总之,这些发现与自闭症的认知解释一致,并提供了哪些AQ10项目对自闭症相关临床实践最有用的线索。
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引用次数: 1
Exact calculation of corrosion rates by the weight-loss method 用失重法精确计算腐蚀速率
Pub Date : 2022-05-16 DOI: 10.1017/exp.2022.5
Francisco Malaret
Abstract Corrosion is an important problem that engineers and scientists must overcome to avoid the collapse of structures, chemical processing plants, and metallic objects, which can lead to not only economic loss but also environmental and human losses. One of the simplest and most widely used methods to quantify corrosion rates (CRs) is the immersion test. The usual approach that has been used to date, to quantify the CR by this method, is to assume that the initial surface area of the corroding object remains constant over time. It is shown that such approximations underestimate the true CR and that they may lead to significant errors. A formula to calculate the CR considering changes in the area is presented in this work. The formula herein can be used to accurately quantify the CR by the immersion test and improve the quality of experimental data and the analysis and modeling of corrosion phenomena.
腐蚀是工程师和科学家必须克服的一个重要问题,以避免结构,化学加工厂和金属物体的倒塌,这不仅会导致经济损失,还会导致环境和人员损失。测定腐蚀速率(cr)的最简单和最广泛使用的方法之一是浸泡试验。迄今为止,通过这种方法量化CR的常用方法是假设腐蚀物体的初始表面积随时间保持不变。结果表明,这种近似低估了真实的CR,并可能导致显著的误差。本文提出了考虑面积变化的CR计算公式。该公式可用于通过浸没试验准确量化CR,提高实验数据和腐蚀现象分析建模的质量。
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引用次数: 6
Hospital capacity influencing factors at COVID-19 pandemic in the United States 美国COVID-19大流行期间医院容量影响因素分析
Pub Date : 2022-05-16 DOI: 10.1017/exp.2022.6
Liming Xie, Di Gao, Xiyuan Liu
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引用次数: 0
Can machine learning models trained using atmospheric simulation data be applied to observation data? 使用大气模拟数据训练的机器学习模型能否应用于观测数据?
Pub Date : 2022-02-24 DOI: 10.1017/exp.2022.3
D. Matsuoka
Abstract Atmospheric simulation data present richer information in terms of spatiotemporal resolution, spatial dimension, and the number of physical quantities compared to observational data; however, such simulations do not perfectly correspond to the real atmospheric conditions. Additionally, extensive simulation data aids machine learning-based image classification in atmospheric science. In this study, we applied a machine learning model for tropical cyclone detection, which was trained using both simulation and satellite observation data. Consequently, the classification performance was significantly lower than that obtained with the application of simulation data. Owing to the large gap between the simulation and observation data, the classification model could not be practically trained only on the simulation data. Thus, the representation capability of the simulation data must be analyzed and integrated into the observation data for application in real problems.
与观测数据相比,大气模拟数据在时空分辨率、空间维度和物理量数量等方面提供了更丰富的信息;然而,这样的模拟并不完全符合真实的大气条件。此外,广泛的模拟数据有助于在大气科学中基于机器学习的图像分类。在这项研究中,我们应用了一个热带气旋检测的机器学习模型,该模型使用模拟和卫星观测数据进行训练。因此,分类性能明显低于应用模拟数据获得的分类性能。由于仿真数据与观测数据之间存在较大差距,仅靠仿真数据无法对分类模型进行实际训练。因此,必须对模拟数据的表示能力进行分析,并将其整合到观测数据中,以应用于实际问题。
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引用次数: 3
Fatty acid composition of milk from mothers giving birth at extremely low gestation in Sweden 在瑞典,极低妊娠期母亲所产乳汁的脂肪酸组成
Pub Date : 2022-02-24 DOI: 10.1017/exp.2022.4
Ulrika Sjöbom, Osman Cismaan, I. Hansen-Pupp, D. Wackernagel, K. Sävman, A. Hellström, A. Nilsson
Abstract Preterm infants show postnatal deficits of long-chain polyunsaturated fatty acids (LCPUFAs) which are essential for adequate growth and neurodevelopment. Human milk is a primary source of fatty acids (FAs) for the preterm infant, and therefore, knowledge about milk FA levels is required to design appropriate supplementation strategies. Here, we expanded on our previous study (Nilsson et al., 2018, Acta Paediatrica, 107, 1020–1027) determining FA composition in milk obtained from mothers of extremely low gestational age (<28 weeks) infants on three occasions during lactation. There was a clear difference in FA composition in milk collected at Day 7 and milk collected at postmenstrual weeks (PMW) 32 or PMW 40. Notably, the proportion of LCPUFAs was low and declined significantly during milk maturation. These results strengthen previous data that the content of FAs required by the preterm infant is not supplied in sufficient amounts when the mother’s own milk is the sole source of these essential nutrients.
早产儿表现出长链多不饱和脂肪酸(LCPUFAs)的产后缺陷,这是足够的生长和神经发育所必需的。母乳是早产儿脂肪酸(FAs)的主要来源,因此,了解牛奶FA水平是设计适当补充策略的必要条件。在这里,我们扩展了之前的研究(Nilsson等人,2018,Acta pediatrics, 107, 1020-1027),测定了三次哺乳期间从极低胎龄(<28周)婴儿的母亲获得的乳汁中的FA成分。第7天采集的乳汁FA组成与经后32周或40周采集的乳汁FA组成有明显差异。值得注意的是,LCPUFAs的比例很低,并且在乳汁成熟过程中显著下降。这些结果加强了先前的数据,即当母亲自己的乳汁是这些必需营养素的唯一来源时,早产儿所需的FAs含量不能提供足够的量。
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引用次数: 0
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Experimental Results
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