scholarly journals Revealing hidden information from unipolar extracellular potentials

2020 ◽  
Vol 6 (12) ◽  
pp. 942-946
Author(s):  
Lianne N. van Staveren ◽  
Natasja M.S. de Groot
2020 ◽  
Vol 59 (1-4) ◽  
pp. 611-621
Author(s):  
Sára Horváthy

SummaryEgeria, a 4th century pious woman from the south of present-day Spain, retold, after visiting Palestine with the Bible in hand, her observations to her sisters. If the linguistic aspects of her letters are quite well-known, much less is known about its stylistic value, inappropriately called “simple”.What seems to be boringly the same again and again, is in fact a constantly renewed and perfectly mastered “variation on a theme”, just as in a well-composed piece of music. Her apparent objectivity is indeed a wish to focus on what she considers the most important, namely to tell her community, as closely to reality as possible, what she observed during her pilgrimage. However, Egeria’s latin is also a testimony of the christian lexicon in construction and of the social changes that were in progress by that time.Linguistics and stylistics work together here, the choice of a word or a grammatical formula reveals hidden information about the proper style of an author who, despite her supposed objectivity, had real personal purposes.


Cancers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 728
Author(s):  
Maria Panagopoulou ◽  
Manel Esteller ◽  
Ekaterini Chatzaki

Breast cancer (BC) is a leading cause of death between women. Mortality is significantly raised due to drug resistance and metastasis, while personalized treatment options are obstructed by the limitations of conventional biopsy follow-up. Lately, research is focusing on circulating biomarkers as minimally invasive choices for diagnosis, prognosis and treatment monitoring. Circulating cell-free DNA (ccfDNA) is a promising liquid biopsy biomaterial of great potential as it is thought to mirror the tumor’s lifespan; however, its clinical exploitation is burdened mainly by gaps in knowledge of its biology and specific characteristics. The current review aims to gather latest findings about the nature of ccfDNA and its multiple molecular and biological characteristics in breast cancer, covering basic and translational research and giving insights about its validity in a clinical setting.


2021 ◽  
Vol 83 (1) ◽  
pp. 72-79
Author(s):  
O.A. Kan ◽  
◽  
N.A. Mazhenov ◽  
K.B. Kopbalina ◽  
G.B. Turebaeva ◽  
...  

The main problem: The article deals with the issues of hiding text information in a graphic file. A formula for hiding text information in image pixels is proposed. A steganography scheme for embedding secret text in random image pixels has been developed. Random bytes are pre-embedded in each row of pixels in the source image. As a result of the operations performed, a key image is obtained. The text codes are embedded in random bytes of pixels of a given RGB channel. To form a secret message, the characters of the ASCII code table are used. Demo encryption and decryption programs have been developed in the Python 3.5.2 programming language. A graphic file is used as the decryption key. Purpose: To develop an algorithm for embedding text information in random pixels of an image. Methods: Among the methods of hiding information in graphic images, the LSB method of hiding information is widely used, in which the lower bits in the image bytes responsible for color encoding are replaced by the bits of the secret message. Analysis of methods of hiding information in graphic files and modeling of algorithms showed an increase in the level of protection of hidden information from detection. Results and their significance: Using the proposed steganography scheme and the algorithm for embedding bytes of a secret message in a graphic file, protection against detection of hidden information is significantly increased. The advantage of this steganography scheme is that for decryption, a key image is used, in which random bytes are pre-embedded. In addition, the entire pixel bits of the container image are used to display the color shades. It can also be noted that the developed steganography scheme allows not only to transmit secret information, but also to add digital fingerprints or hidden tags to the image.


2017 ◽  
Vol 12 (2) ◽  
pp. 621-654 ◽  
Author(s):  
Henrique de Oliveira ◽  
Tommaso Denti ◽  
Maximilian Mihm ◽  
Kemal Ozbek

2019 ◽  
Vol 13 (2) ◽  
pp. 176-180 ◽  
Author(s):  
Akihito Uji ◽  
Yuki Muraoka ◽  
Nagahisa Yoshimura

Sign in / Sign up

Export Citation Format

Share Document