scholarly journals Differentially Private Sparse Vectors with Low Error, Optimal Space, and Fast Access

2021 ◽  
Author(s):  
Martin Aumüller ◽  
Christian Janos Lebeda ◽  
Rasmus Pagh
Keyword(s):  
2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Kyungchan Lee ◽  
Gunnar F. Lange ◽  
Lin-Lin Wang ◽  
Brinda Kuthanazhi ◽  
Thaís V. Trevisan ◽  
...  

AbstractTime reversal symmetric (TRS) invariant topological insulators (TIs) fullfil a paradigmatic role in the field of topological materials, standing at the origin of its development. Apart from TRS protected strong TIs, it was realized early on that more confounding weak topological insulators (WTI) exist. WTIs depend on translational symmetry and exhibit topological surface states only in certain directions making it significantly more difficult to match the experimental success of strong TIs. We here report on the discovery of a WTI state in RhBi2 that belongs to the optimal space group P$$\bar{1}$$ 1 ¯ , which is the only space group where symmetry indicated eigenvalues enumerate all possible invariants due to absence of additional constraining crystalline symmetries. Our ARPES, DFT calculations, and effective model reveal topological surface states with saddle points that are located in the vicinity of a Dirac point resulting in a van Hove singularity (VHS) along the (100) direction close to the Fermi energy (EF). Due to the combination of exotic features, this material offers great potential as a material platform for novel quantum effects.


Author(s):  
G. Martella ◽  
F. A. Schreiber
Keyword(s):  

This Commentary provides an article-by-article summary of the TEU, the TFEU, and the Charter of Fundamental Rights, offering a quick reference to the provisions of the Treaties and how they are interpreted and applied in practice. Written by a team of contributors drawn from the Legal Service of the European Commission and academia, the Commentary offers expert guidance to practitioners and academics seeking fast access to the Treaties and current practice. The Commentary follows a set structure, offering a short overview of the Article, the Article text itself, a key references list including essential case law and legislation, and a structured commentary on the Article itself. The editors and contributors combine experience in practice with a strong academic background and have published widely on a variety of EU law subjects.


Author(s):  
Mehmet Zeki Gunluoglu ◽  
Tugrul Ormeci ◽  
Selva Sen

Abstract: Rapid developments and increasing technological knowledge have changed perspectives on ultrasonography. Previously, ultrasonography was used to evaluate chest wall pathologies, to distinguish between pleural effusion and consolidation, to evacuate pleural effusion, or to evaluate diaphragm movement. Today, it is also used in a wide range of pleural and parenchymal diseases. Ultrasonography is not just used in the emergency department and the intensive care units. It is also utilized in many clinical branches dealing with the respiratory system—due to its ease of use, fast access, price advantage, non-radiation exposure, higher diagnostic sensitivity, and specificity in many clinical situations—and has become a part of the examination. In this review, we have assessed not just transthoracic ultrasonography but also more focal and targeted sonographic applications, such as the endobronchial ultrasound and esophageal ultrasound.


2009 ◽  
Vol 2009 ◽  
pp. 1-19 ◽  
Author(s):  
Lee Seng Yeong ◽  
Christopher Wing Hong Ngau ◽  
Li-Minn Ang ◽  
Kah Phooi Seng

2011 ◽  
Vol 30 (7) ◽  
pp. 1911-1919 ◽  
Author(s):  
Yonghao Yue ◽  
Kei Iwasaki ◽  
Bing-Yu Chen ◽  
Yoshinori Dobashi ◽  
Tomoyuki Nishita

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