Results 1 to 10 of about 612,194 (314)
Influences of negative BOLD responses on positive BOLD responses
NeuroImage, 2011 Understanding possible interactions between blood oxygenation level-dependent (BOLD) responses is critical for model-based analyses and the interpretation of experiments that deal with stimuli presented close together in time. Such interactions are well documented in the case of successive positive BOLD responses. However, the influence that a stimulus-
Carsten M Klingner +2 more
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Reproducibility of BOLD, perfusion, and CMRO2 measurements with calibrated-BOLD fMRI [PDF]
NeuroImage, 2007 The coupling of changes in cerebral blood flow (CBF) and cerebral metabolic rate of oxygen (CMRO(2)) during brain activation can be characterized by an empirical index, n, defined as the ratio between fractional CBF change and fractional CMRO(2) change.
Richard B Buxton
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He jishu实现对空间中子/伽马（n/γ）的精准甄别有利于空间辐射场的研究。传统的甄别方法受数据噪声影响较大，难以实现在星载探测器这样高噪声水平条件下进行n/γ甄别。为实现在不同噪声水平下n/γ的有效甄别，本研究提出了使用小波散射网络（Scattering Convolution Networks，SCN）结合MobileNetV4（MNv4）和Kolmogorov–Arnold Networks（KAN）模型的n/γ甄别的算法。研究选用Ø50 mm×50 mm的NaI（Tl ...
王 雨龙 +5 more
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He jishu铅铋堆蒸汽发生器发生传热管破裂事故（Steam Generator Tube Rupture，SGTR）后，二次侧高压过冷水将喷放进入一次侧的高温铅铋熔融物中。该现象可能的后果有铅铋凝固，压力波造成堆内构件损坏以及蒸汽迁移进入堆芯引入意外反应性。为了研究该过程，上海交通大学先进核能系统实验室搭建了大型铅铋-水反应实验装置台架。在实验开始前，针对该台架预先开展计算流体动力学（Computational Fluid Dynamics，CFD）计算以认识实验现象并确定实验工况 ...
邓 畅, 张 林, 刘 晓晶
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Учёные записки Казанского университета: Серия Естественные науки, 2022 This article presents, for the first time, a reference database of the nucleotide sequences for three DNA barcodes (ITS2, matK, and rbcL) of 65 rare and critically endangered plant species of the Republic of Uzbekistan (133 samples, two samples per ...
F.U. Mustafina +8 more
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Frontiers in Neuroenergetics, 2010 Interpreting fMRI data relies on the assumption that hemodynamic responses reflect neuronal activity. Some recently reported results seem to suggest that this assumption might be less robust than what has been thought so far. Data by Schummers et al. (2008) suggest that hemodynamic responses depend on functional properties of astrocytes as mediators of
Vanzetta, Ivo, Slovin, Hamutal
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Journal of Integrative Neuroscience, 2023 Lesions of the central nervous system (CNS) can present with numerous and overlapping radiographical and clinical features that make diagnosis difficult based exclusively on history, physical examination, and traditional imaging modalities.
Akram M Eraky +4 more
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Data & Policy, 2022 The welfare state is currently undergoing a transition toward data-driven policies, management, and execution. This has important repercussions for frontline bureaucrats in such a “digital welfare state.” So far, impact of data-driven tools on frontline ...
Margot Kersing +3 more
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European Journal of Entomology, 2020 The progress in constructing a DNA barcode library for German Diptera as published by Morinière et al. (2019, Mol. Ecol. Resour. 19: 900-928) is appraised from a dipterists' perspective. The coverage of the diversity of German Diptera in terms of barcode
Marion KOTRBA
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Human Factors in Healthcare, 2023 This project seeks to improve medical device usability through the development of a novel assessment tool generated in Microsoft Excel to predict and analyze the time and mental effort required for various operators when using medical device hardware and
Mikaylah Gross +3 more
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