286 research outputs found
Convex functions on Grassmannian manifolds and Lawson–Osserman problem
No full textAbstractWe derive estimates of the Hessian of two smooth functions defined on Grassmannian manifold. Based on it, we can derive curvature estimates for minimal submanifolds in Euclidean space via Gauss map as in [Y.L. Xin, Ling Yang, Curvature estimates for minimal submanifolds of higher codimension, arXiv: 0709.3686; 24]. In this way, the result for Bernstein type theorem done by Jost and the first author could be improved
Correction to: A Siamese transformer network for zero-shot ancient coin classification (Journal of Imaging, (2023), 9, 6, (107)
No full textJochen Büttner was not included as an author in the original publication [1]. The corrected Author Contributions statement appears here. Author Contributions: Conceptualization, J.B. (Siamese structure), Z.G. and O.A. (transformer components); methodology, Z.G., O.A. and Y.L.; software, Z.G. and Y.L.; investigation, Z.G. and D.R.; resources, Z.G. and O.A.; data curation, O.A.; writing—original draft preparation, Z.G., O.A., D.R. and Y.L.; writing—review and editing, Z.G. and O.A.; visualization, Z.G.; supervision, O.A.; project administration, O.A.; after initial publication, J.B. has agreed to be added as a co-author. All authors have read and agreed to the published version of the manuscript. The authors state that the scientific conclusions are unaffected. This correction was approved by the Academic Editor. The original publication has also been updated.</p
Author Correction: Differential epigenetic reprogramming in response to specific endocrine therapies promotes cholesterol biosynthesis and cellular invasion
No full textThis Article omits a declaration from the Competing Interests statement, which should have included the following: ‘One of the authors, Y.L., is an editor on the staff of Nature Communications, but was not in any way involved in the journal review process. The other authors declare no competing interests.’ Also, the Article contains an error in the name of the author Alba Rodriguez-Meira, which is incorrectly given as Alba Meira. These errors have not been corrected in either the PDF or HTML versions of the Article. © 2019, The Author(s)
Differences in Treatment and Management of Indigenous and Non-Indigenous Patients Presenting with Chest Pain: Results of the Heart Protection Partnership (HPP) Study
No full textBACKGROUND: Indigenous patients with acute coronary syndromes represent a high-risk group. There are however few contemporary datasets addressing differences in the presentation and management of Indigenous and non-Indigenous patients with chest pain.\ud
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METHODS: The Heart Protection Project, is a multicentre retrospective audit of consecutive medical records from patients presenting with chest pain. Patients were identified as Indigenous or non-Indigenous, and time to presentation and cardiac investigations as well as rates of cardiac investigations and procedures were compared between the two groups.\ud
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RESULTS: Of the 2380 patients included, 199 (8.4%) identified as Indigenous, and 2174 (91.6%) as non-Indigenous. Indigenous patients were younger, had higher rates hyperlipidaemia, diabetes, smoking, known coronary artery disease and a lower rate of prior PCI; and were significantly less likely to have private health insurance, be admitted to an interventional facility or to have a cardiologist as primary physician. Following adjustment for difference in baseline characteristics, Indigenous patients had comparable rates of cardiac investigations and delay times to presentation and investigations.\ud
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CONCLUSIONS: Although the Indigenous population was identified as a high-risk group, in this analysis of selected Australian hospitals there were no significant differences in treatment or management of Indigenous patients in comparison to non-Indigenous
An Investigation into the Authenticity of the Bi-Lin-Lang-Guan Version of Jin Lu-Xiang’s Shang Shu Zhu
No full text金履祥為宋、元之際經學大家，據載金氏關於《尚書》的作品有《尚書表注》一卷、《尚書注》十二卷，又嘗以《尚書》為主，旁採經子諸說，作《通鑑前編》十二卷。近人蔡根祥曾考證其十二卷《尚書注》，當是由《通鑑前編》中將關於《尚書》部份的文字輯出而成，乃後人偽作。不過，事實上今日傳世的金履祥《尚書注》有兩種版本，一為陸心源《十萬卷樓叢書》本，此為流行本，一本則收入清人方功惠《碧琳琅館叢書》當中。兩書內容完全不同，然大部份學者均未詳加分別，以為同本。本文試圖就此一發現發現，由既有文獻資料，整理關於金履祥《尚書注》的歷來著作情形，並對《碧琳琅館叢書》本《金氏尚書注》內容作詳細的探討。經研究後，發現此書的思想、內容均與金履祥時代不合，再進一步考察，得知此本亦是偽作，為後人取元人陳師凱《書蔡傳旁通》為主，並用及相關資料作為〈序〉、〈跋〉、〈附錄〉拼湊而成，當是清代中葉之後的人所偽作。Jin Lu-Xiang is an important scholar in the Sung and the Yuan Dynasties. Allegedly, he is the author of Shang Shu Biao Zhu (Commentaries on the Chronicle in Shang Shu), Shang Shu Zhu (Commentaries on Shang Shu), and Zi Zhi Tong Jian Qian Bian (The History before Zi Zhi Tong Jian). Recently, Tsai Ken-Hsian has found out that Shang Shu Zhu is a fake: it is actually a part of Zi Zhi Tong Jian Qian Bian.
We currently have 2 versions of Jin’s Shang Shu Zhu, one of which is in Lu Xin-Yuan’s Shi-Wan-Juan-Lou Series and the other one is in Fang Gong-Hui’s Bi-Ling-Lang-Guan Series. These 2 versions are totally different, but few scholars have discovered this fact.
With a detailed investigation into all the documents related to Jin’s writing process of Shang Shu Zhu, this study proves that the Bi-Ling-Lang-Guan version is also a fake, because the thoughts that it includes do not exist in Jin’s time. This version is actually Chen Shi-Kai’s Shu Tsai Zhuan Pang Tong in the Yuan Dynasty, combined with related information as its preface, postscript, and appendix. It has been fabricated in the middle period of the Qing Dynasty
A single-photon ECAT reconstruction procedure based on a PSF model
No full textElectrical Engineering, Mathematics and Computer Scienc
The management of Indigenous patients presenting with non ST-segment elevation acute coronary syndrome in South Australia: a retrospective cohort study
No full textAim: Using Australian guidelines for management of acute coronary syndromes (ACS), we assessed the probability of an Indigenous patient receiving interventional and therapeutic care after presenting in two metropolitan hospitals.
Methods: A retrospective case note review of patients admitted through two Adelaide public tertiary hospital emergency departments from December 2007 to December 2009. The study cohort was 488 patients with high-risk clinical features without ST-segment-elevation.
Results: Indigenous patients were significantly younger, present later in the disease process and have a higher burden of cardiovascular risk factors, when compared to non-Indigenous patients. Indigenous patients were 54% more likely to receive angiography (RR = 1.54; 95% CI 1.31;1.81) than non-Indigenous patients however this difference disappeared after adjustment for age, sex and propensity score. Indigenous patients were 20% more likely to receive the recommended medications (RR = 1.19, 95% CI 1.01;1.40) compared to non-Indigenous patients. Patients over 65 years were 53% less likely to receive an angiogram (RR = 0.47, 95% CI 0.38;0.56) and were 35% less likely to receive the recommended medications (RR = 0.65, 95% CI 0.54;0.78) than a patient at the ages of 18-49. Women were almost 20% less likely to receive an angiogram (RR = 0.81, 95% CI 0.66;0.99) and 20% less likely to receive the recommended medications (RR = 0.80, 95% CI 0.71;0.91) when compared to men. The likelihood of receiving medications on discharge was significantly influenced by age, gender, ethnicity, comorbid burden and revascularisation.
Conclusions: The younger age and significantly higher risk profile of Indigenous adults presenting to SA hospitals with ACS appears to lead to different management decisions, which may well be led by patient factors. Many of these risk conditions can be better managed in the primary care setting
Active Gust Load Alleviation for Flexible Wing Aircraft
No full textThis paper presents a novel active gust load alleviation approach within a multi-objective flight control framework developed by NASA for a flexible wing aircraft. The aircraft model is based on the NASA Generic Transport Model (GTM). The wing structures incorporate an aerodynamic control surface known as the Variable Camber Continuous Trailing Edge Flap (VCCTEF). Previous work already showed the ability of the VCCTEF to perform aeroelastic mode suppression, drag minimization and maneuver load alleviation in a multi-objective flight control framework. In this paper, the multi-objective flight control framework is extended to include active gust load alleviation. A Linear-Quadratic Gaussian (LQG) controller is augmented with Model Reference Adaptive Control (MRAC) to provide active gust load alleviation. Disturbance estimation is done using an Extended State Observer (ESO) to support the design of the active gust load alleviation controller. The results demonstrate the potential of active gust load alleviation within a multi-objective flight control framework for a high-aspect ratio flexible wing aircraft embodied with the VCCTEF.Aerospace EngineeringControl & Simulatio
Protein Kinase Cβ: Linking Intestine Fibroblast Growth Factor 15 to Hepatic Extracellular Signal Regulated Kinase 1/2 Signaling in Bile Acid and Cholesterol Homeostasis
No full textImpact of age, gender and indigenous status on access to diagnostic coronary angiography for patients presenting with non-ST segment elevation acute coronary syndromes in Australia
No full textUsing Australian guidelines for management of acute coronary syndromes, we investigated the proportion of high-risk patients enrolled in the Acute Coronary Syndromes Prospective Audit registry who received a coronary angiogram. A prospective nationwide multicentre registry involving 39 Australian hospitals was used. The study cohort were patients with high-risk clinical features without ST segment elevation (n = 1948) admitted from emergency departments between 1 November 2005 and 31 July 2007. Eighty nine per cent of patients with ST segment elevation myocardial infarction and only 53% of eligible patients with high-risk acute coronary syndromes with no ST elevation received a diagnostic angiogram. Increasing age was associated with lower rates of angiography; a high-risk patient at the age of ≥70 years was 19% less likely to receive an angiogram than one at the age of <70 years (risk ratio (RR) = 0.81 95% confidence interval (CI) 0.76, 0.76). Women were 26% less likely than men to receive an angiogram (RR = 0.74; 95% CI = 0.65, 0.83). The adjusted RR from the multivariate analysis suggests that a patient at the age of ≥70 years was 35% less likely to receive an angiogram than one at the age of <70 years (RR = 0.65, 95% CI = 0.60, 0.73), and that women were 13% less likely than men to receive an angiogram (RR = 0.87, 95% CI = 0.80, 0.96). Indigenous patients were as likely to access angiography as eligible non-indigenous patients (RR = 1.03, 95% CI 0.85, 1.25). There is underinvestigation of high-risk patients without ST segment elevation in Australian hospitals, particularly for women and older patients. Indigenous patients are younger and have poorer risk profiles, and represent a group that would benefit from greater investment in prevention strategies.Y. L. Roe, C. J. Zeitz, M. N. Mittinty, R. A. McDermott and D. P. Che
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