A Simple and Robust Method for Determining the Quality of Cardiovascular Signals Using the Signal Similarity

Author(s):  
Dae-Geun Jang ◽  
Ui Kun Kwon ◽  
Seung Keun Yoon ◽  
Changsoon Park ◽  
Yunseo Ku ◽  
...  
2016 ◽  
Vol 55 (6) ◽  
pp. 1318 ◽  
Author(s):  
A. V. Fantin ◽  
D. P. Willemann ◽  
M. E. Benedet ◽  
A. G. Albertazzi

Materials ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 3710 ◽  
Author(s):  
E Cheng ◽  
Ben Xing ◽  
Shanshan Li ◽  
Chengzhuang Yu ◽  
Junwei Li ◽  
...  

The microelectrode is an essential and vital part in microsensors that are largely used in industrial, chemical, and biological applications. To obtain desired microelectrodes in great quality, it is also of great necessity and significance to develop a robust method to fabricate the microelectrode pattern. This work developed a four-terminal differential microelectrode that aims at recognizing microparticles in fluids. This microelectrode pair consisted of a high height–width ratio microelectrode array fabricated using a pre-designed microelectrode pattern (a micro-scale channel) and melted liquid metal. The surface treatment of microelectrodes was also investigated to reveal its impacts on the continuality of melting metal and the quality of the fabricated microelectrode patterns. To evaluate the performance of micro-casting fabricated electrodes, a microfluidic device was packaged using a microelectrode layer and a flow layer. Then impedance cytometer experiments were performed using sample fluids with polymer particles in two different sizes in diameter (5 μm and 10 μm). In addition, engine oil was tested on the microelectrodes as complex samples. The number of abrasive particles in the engine oil can be collected from the developed microfluidic device for further analysis.


2020 ◽  
Vol 31 (3) ◽  
pp. 122-126
Author(s):  
Jane Scullion

Adherence is the term currently used to describe a patient following prescribed or suggested treatment regimens. Jane Scullion looks at this concept in those with respiratory disease In respiratory diseases, there are good pharmacological and non-pharmacological therapeutic interventions that can improve symptoms, health status and quality of life for many, and in some cases transform and even save lives. What is not in place is a robust method for ensuring that the therapies and interventions that are prescribed or advised can and will be taken as instructed, and we call this nonadherence. This article looks at medicines adherence, using examples from respiratory diseases and their treatments, discussing what what is meant by it, the reasons it remains problematic, and what could be done about it in respiratory prescribing.


2016 ◽  
Author(s):  
Patrick D. Schloss

AbstractAssigning 16S rRNA gene sequences to operational taxonomic units (OTUs) allows microbial ecologists to overcome the inconsistencies and biases within bacterial taxonomy and provides a strategy for clustering similar sequences that do not have representatives in a reference database. I have applied the Matthew’s correlation coefficient to assess the ability of 15 reference-independent and ‐dependent clustering algorithms to assign sequences to OTUs. This metric quantifies the ability of an algorithm to reflect the relationships between sequences without the use of a reference and can be applied to any dataset or method. The most consistently robust method was the average neighbor algorithm; however, for some datasets other algorithms matched its performance.


Author(s):  
Yunke Wang ◽  
Chang Xu ◽  
Bo Du

The agent in imitation learning (IL) is expected to mimic the behavior of the expert. Its performance relies highly on the quality of given expert demonstrations. However, the assumption that collected demonstrations are optimal cannot always hold in real-world tasks, which would seriously influence the performance of the learned agent. In this paper, we propose a robust method within the framework of Generative Adversarial Imitation Learning (GAIL) to address imperfect demonstration issue, in which good demonstrations can be adaptively selected for training while bad demonstrations are abandoned. Specifically, a binary weight is assigned to each expert demonstration to indicate whether to select it for training. The reward function in GAIL is employed to determine this weight (i.e. higher reward results in higher weight). Compared to some existing solutions that require some auxiliary information about this weight, we set up the connection between weight and model so that we can jointly optimize GAIL and learn the latent weight. Besides hard binary weighting, we also propose a soft weighting scheme. Experiments in the Mujoco demonstrate the proposed method outperforms other GAIL-based methods when dealing with imperfect demonstrations.


2020 ◽  
Vol 2 (1) ◽  
pp. 24-29 ◽  
Author(s):  
Jane Scullion

In respiratory diseases, there are good pharmacological and non pharmacological therapeutic interventions that can improve symptoms, health status and quality of life for many, and in some cases transform and even save lives. What is not in place is a robust method for ensuring that the therapies and interventions that are prescribed or advised can and will be taken as instructed, and we call this nonadherence. This article looks at medicines adherence, using examples from respiratory diseases and their treatments, discussing what what is meant by it, the reasons it remains problematic, and what could be done about it in respiratory prescribing


2016 ◽  
pp. 59-70 ◽  
Author(s):  
V. V. Lavrov ◽  
R. S. Luchkin ◽  
O. I. Nemykin ◽  
M. E. Prochorov ◽  
Y. G. Ryndin ◽  
...  

Author(s):  
K. T. Tokuyasu

During the past investigations of immunoferritin localization of intracellular antigens in ultrathin frozen sections, we found that the degree of negative staining required to delineate u1trastructural details was often too dense for the recognition of ferritin particles. The quality of positive staining of ultrathin frozen sections, on the other hand, has generally been far inferior to that attainable in conventional plastic embedded sections, particularly in the definition of membranes. As we discussed before, a main cause of this difficulty seemed to be the vulnerability of frozen sections to the damaging effects of air-water surface tension at the time of drying of the sections.Indeed, we found that the quality of positive staining is greatly improved when positively stained frozen sections are protected against the effects of surface tension by embedding them in thin layers of mechanically stable materials at the time of drying (unpublished).


Author(s):  
L. D. Jackel

Most production electron beam lithography systems can pattern minimum features a few tenths of a micron across. Linewidth in these systems is usually limited by the quality of the exposing beam and by electron scattering in the resist and substrate. By using a smaller spot along with exposure techniques that minimize scattering and its effects, laboratory e-beam lithography systems can now make features hundredths of a micron wide on standard substrate material. This talk will outline sane of these high- resolution e-beam lithography techniques.We first consider parameters of the exposure process that limit resolution in organic resists. For concreteness suppose that we have a “positive” resist in which exposing electrons break bonds in the resist molecules thus increasing the exposed resist's solubility in a developer. Ihe attainable resolution is obviously limited by the overall width of the exposing beam, but the spatial distribution of the beam intensity, the beam “profile” , also contributes to the resolution. Depending on the local electron dose, more or less resist bonds are broken resulting in slower or faster dissolution in the developer.


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