Results 11 to 20 of about 107,797 (245)

XOR-ed visual secret sharing scheme with robust and meaningful shadows based on QR codes [PDF]

open access: yesMultimedia Tools and Applications, 2019
AbstractQuick response (QR) codes are becoming increasingly popular in various areas of life due to the advantages of the error correction capacity, the ability to be scanned quickly and the capacity to contain meaningful content. The distribution of dark and light modules of a QR code looks random, but the content of a code can be decoded by a ...
Longdan Tan   +4 more
openaire   +3 more sources

AMBTC-based visual secret sharing with different meaningful shadows

open access: yesMathematical Biosciences and Engineering, 2021
Secret sharing based on Absolute Moment Block Truncation Coding (AMBTC) has been widely studied. However, the management of stego images is inconvenient as they seem indistinguishable. Moreover, there exists a problem of pixel expansion, which requires more storage space and higher transmission bandwidth. To conveniently manage the stego images, we use
Shudong Wang   +4 more
openaire   +3 more sources

Beyond Shadowing: Providing Meaningful Clinical Experiences for Early Clinical Learners [PDF]

open access: yesAEM Education and Training, 2017
Early in medical school, medical students traditionally received little instruction in patient care settings. The transition to clinical instruction was often abrupt. Kolb's model of experiential learning states that “learning is the process whereby knowledge is created through the transformation of experience.” 1 This belief that learning best occurs ...
Goslinga, Thomas   +4 more
openaire   +3 more sources

Using Two Meaningful Shadows to Share Secret Messages with Reversibility [PDF]

open access: yesSymmetry, 2019
A subtopic of visual secret sharing (VSS) is information hiding-based VSS (IH-VSS), which embeds secret messages into images using an information hiding technique. In the IH-VSS scheme, stego-images are divided into shadows under the guidance and constraint of some predetermined approaches.
Lin Li, Chia-Chen Lin, Chin-Chen Chang
openaire   +1 more source

Institutions and Shadows: Jonathan Swift, Enlightenment and Recent Irish Poetry [PDF]

open access: yesEstudios Irlandeses, 2023
This article traces Jonathan Swift’s legacy in the work of three modern Irish poets: Jessica Traynor, Rita Ann Higgins and Derek Mahon. I use two motifs to explore this inheritance: institutions and shadows.
JAMES WARD
doaj  

In the shadow of privacy: Overlooked ethical concerns in COVID-19 digital epidemiology

open access: yesEpidemics, 2022
The COVID-19 pandemic witnessed a surge in the use of health data to combat the public health threat. As a result, the use of digital technologies for epidemic surveillance showed great potential to collect vast volumes of data, and thereby respond more ...
Agata Ferretti, Effy Vayena
doaj   +1 more source

Narratives of power: bringing ideology to the fore of planning analysis [PDF]

open access: yes, 2020
This Special Issue starts from the premise that the concept of ideology holds significant analytical potential for planning but that this potential can only be realised if ideology is brought to the fore of analysis.
Inch, Andy   +2 more
core   +2 more sources

CauseMap: fast inference of causality from complex time series [PDF]

open access: yesPeerJ, 2015
Background. Establishing health-related causal relationships is a central pursuit in biomedical research. Yet, the interdependent non-linearity of biological systems renders causal dynamics laborious and at times impractical to disentangle.
M. Cyrus Maher, Ryan D. Hernandez
doaj   +2 more sources

Hurdles for Recent Measures in Eternal Inflation [PDF]

open access: yes, 2006
In recent literature on eternal inflation, a number of measures have been introduced which attempt to assign probabilities to different pocket universes by counting the number of each type of pocket according to a specific procedure.
A. Aguirre   +3 more
core   +2 more sources

DETERMINAÇÃO DE Al3+, Fe3+ E Cu2+ PRESENTES EM SOMBRAS DE MAQUIAGEM POR ESPECTROFOTOMETRIA UV-Vis: UMA PROPOSTA DE EXPERIMENTO CONTEXTUAL EM NÍVEL SUPERIOR DE ENSINO

open access: yesQuímica Nova, 2019
Metallic oxides are used in cosmetic shadows formulations in order to highlight the area around the eyes, with different colors. Due to the close proximity to the eye mucosa, these products are a potential source of metal intoxication in human body ...
Alex Magalhães Almeida   +7 more
doaj   +1 more source

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