277 research outputs found
Coordination of Two Antagonistic Flight Muscles during Wing-Beat of Bumblebee Visualized by Ultrafast X-ray Diffraction Movies
Clarà Ayats, JosepPla general, lateral, de l'estatuta
classicista de nu femení que identificació
de la joventut amb la bellesa. Mesura
2,97 x 0,79 x 0,70 metres i és de pedra
artificial
Three-Dimensional Considerations for X-Ray Diffraction Signals that Occur Ahead of Stretch Activation in Insect Flight Muscle
On the Algebraic Structure of Discrete Quantity Adjustment Processes
本論文では,(S, s) 在庫政策を伴う一般的な投入産出構造と時間構造を持つマクロ経済モデルを提示し,経済変動における離散的数量調整過程の特性を分析する。とくに個々の企業の生産および派生需要の伝播によるマクロ的在庫調整過程をそれぞれ演算として定義し,在庫調整過程の安定性に関する条件を示す。また演算の集合としての群を定義し,外生需要によって引き起こされる在庫調整過程を代数的に分析するアプローチを示すとともに,在庫調整過程とマクロ動学における安定集合の代数構造を分析する。最後に,マクロ経済の在庫水準の長期的な定常状態について分析する
Measurement of persistence in YAG:Ce3+ scintillator with pulsed synchrotron X-rays
The decay time of YAG:Ce3+ scintillator was estimated to be 60 ns by using a fast CMOS camera and synchrotron bunches
CT dose reduction factors in the thousands using X-ray phase contrast
Phase-contrast X-ray imaging can improve the visibility of weakly absorbing
objects (e.g. soft tissues) by an order of magnitude or more compared to
conventional radiographs. Previously, it has been shown that combining phase
retrieval with computed tomography (CT) can increase the signal-to-noise ratio
(SNR) by up to two orders of magnitude over conventional CT at the same
radiation dose, without loss of image quality. Our experiments reveal that as
radiation dose decreases, the relative improvement in SNR increases. We
discovered this enhancement can be traded for a reduction in dose greater than
the square of the gain in SNR. Upon reducing the dose 300 fold, the
phase-retrieved SNR was still almost 10 times larger than the absorption
contrast data. This reveals the potential for dose reduction factors in the
tens of thousands without loss in image quality, which would have a profound
impact on medical and industrial imaging applications
Risk factors of immune checkpoint inhibitor-related interstitial lung disease in patients with lung cancer : a single-institution retrospective study
Immune checkpoint inhibitors (ICIs) elicit antitumour effects by activating the host immunity and cause immune-related adverse events (irAEs). ICI-related interstitial lung disease (ICI-ILD) is a fatal irAE that is difficult to treat; moreover, its incidence is relatively higher in patients with lung cancer. Therefore, early ICI-ILD detection and intervention are important for patient safety. However, a risk assessment method for ICI-ILD has not been established and the prediction of ICI-ILD occurrence is difficult. The aim of our study was to identify the risk factors associated with ICI-ILD. To this end, we retrospectively analysed 102 patients with lung cancer who first received ICI and completed the treatment between April 2016 and December 2019 at Tokushima University Hospital. Nineteen patients had all grades of ICI-ILD and 10 had grade ≥ 3 ICI-ILD. The 30-day mortality rate of patients with grade ≥ 3 ICI-ILD was the highest among all patients (P < 0.01). The multivariate logistic analysis indicated that the performance status ≥ 2 alone and both performance status ≥ 2 and ≥ 50 pack-year were independent risk factors of ICI-ILD of grade ≥ 3 and all grades, respectively. Overall, our study provides insights to predict ICI-ILD occurrence
An X-ray diffraction study on a single rod outer segment from frog retina
X-ray diffraction was recorded from retinal rod outer segments of frog using a microbeam
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