Aortic dissection typically presents acutely with sudden, severe tearing chest or back pain, often described as lancinating in quality. [5-6] Approximately 50% of patients with thoracic aortic aneurysm may progress to dissection without timely intervention. [5] In contrast, thoracic aortic aneurysm is usually asymptomatic and discovered incidentally during physical examination or imaging for other indications. [5]
- Last 7 days
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accessmedicine.mhmedical.com accessmedicine.mhmedical.com
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- CT angiography is the imaging modality of choice for differentiating these conditions in the emergency setting, with very high sensitivity and specificity for acute aortic syndromes
- Recent evidence suggests that inflammatory biomarkers may aid differentiation. The neutrophil-to-lymphocyte ratio (NLR) shows high diagnostic accuracy for distinguishing dissection from controls (AUC 0.933), while the fibrinogen-to-d-dimer ratio best differentiates dissection from aneurysm (AUC 0.898, sensitivity 77%, specificity 84%). [10] D-dimer levels below 500 ng/mL make acute aortic syndrome unlikely in low-risk patients
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- Mar 2026
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iste.org iste.org
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Scavenger hunts, bingo, dice games, Connect Four and Scrabble have been around for decades and can be adapted for classroom learning
These can be adapted in the classroom to promote critical thinking and by encouraging students to problem-solve, make strategic decisions, and apply prior knowledge.
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- Jul 2025
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www.metmuseum.org www.metmuseum.org
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https://www.metmuseum.org/art/collection/search/487130
Henry Dreyfuss designed a thermos bottle and cups for The American Thermos Bottle Company (Norwich, CT) ca. 1933. An example of them is on display at The Met.
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- Mar 2025
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条件 2 アルゴリズムとは何か 計算量(計算回数)とは何か を理解する。そうすると、明らかに制限時間内に実行が終わらないソースコードを出さなくなる。ちなみに、競プロでは 108 ~ 109 回程度のループが回せるといわれている。
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atcoder.jp atcoder.jp
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入力 NNN と実行時間のおおよその感覚との対応を次の表に示します。
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atcoder.jp atcoder.jp
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all any all は与えられたリストの要素すべてが条件式として真であるかを判定します。 any は与えられたリストの要素の中に条件式として真であるものが1つ以上存在するかを判定します。
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なお、べき乗は 1.3 節で扱った ** 演算子でも計算できますが、組み込み関数 pow を用いたほうが高速に計算できます。 また、余りは pow(a,b) % mod のように後から計算しても同じ結果になりますが、pow(a,b) の値が非常に大きくなる場合は pow(a,b,mod) のほうが高速に計算できます。 競技プログラミングにおいては pow 関数を使うことが必須であるケースが多いため覚えておきましょう。
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- Sep 2024
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www.ebay.com www.ebay.com
- Jun 2024
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www.greenwichsentinel.com www.greenwichsentinel.com
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Greenwich Land Trust to Host Firefly and Pollinator Pathway Presentation by [[Greenwich Sentinel]]
The other Christopher J. Aldrich lives in/near Greenwich, CT
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- Feb 2024
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www.blyberg.net www.blyberg.net
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https://www.blyberg.net/darien-statements
The Darien Statements on the Library and Librarians<br /> Written by John Blyberg, Kathryn Greenhill, and Cindi Trainor<br /> Originally published April 3, 2009
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- May 2023
- Mar 2023
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www.abandonedamerica.us www.abandonedamerica.us
- Jun 2021
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psyarxiv.com psyarxiv.com
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Meijer, L. L., Hasenack, B., Kamps, J., Mahon, A., Titone, G., Dijkerman, H. C., & Keizer, A. (2021). Out of touch: Touch deprivation and affective touch perception during the COVID-19 pandemic. PsyArXiv. https://doi.org/10.31234/osf.io/peq7m
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- Jul 2020
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ccforum.biomedcentral.com ccforum.biomedcentral.com
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Roy-Gash, F., Marine, D. M., Jean-Michel, D., Herve, V., Raphael, B., & Nicolas, E. (2020). COVID-19-associated acute cerebral venous thrombosis: Clinical, CT, MRI and EEG features. Critical Care, 24(1), 419. https://doi.org/10.1186/s13054-020-03131-x
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- Jul 2018
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www.americanscientist.org www.americanscientist.org
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The term computational science, and its associated term computational thinking, came into wide use during the 1980s. In 1982, theoretical physicist Kenneth Wilson received a Nobel Prize in physics for developing computational models that produced startling new discoveries about phase changes in materials.
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Nearly everybody had something to gain. Experimenters looked to computers for data analysis—sifting through large data sets for statistical patterns. Theoreticians looked to them for calculating the equations of mathematical models.
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