We find that while there are strong theoretical reasons to expect tipping point and threshold responses at all three levels of the pollination system, evidence in the field is lacking for all levels except the colony level. While this is encouraging, caution is still warranted as tipping point ...
Such settings call for special methods of secret sharing. To this end, we define hierarchical secret sharing as follows: Definition 1. Let U be a set of n participants and assume that U is composed of levels, i.e., U = m i=0 Ui where Ui ∩Uj = ∅ for all 0 ≤ i < j ≤ ...
. Social workers have sometimes been regarded as lacking familiarity or legal literacy concerning homelessness or adopting the individualistic vernacular of ‘lifestyle choices’ (Mason et al.,Citation2017). Safeguarding adult reviews has increasingly reported on systems failures, including a lack of pro...
We therefore suggest a cautious approach toward the management of pollination systems. Since environmental change will almost certainly continue to accelerate, understanding the potential for thresholds, tipping points and cascading failures is key to safeguarding global pollination systems....
Despite the sharp increase in the capitalization threshold, all but one of the 14 agencies responded that they maintained property records for the government's general property, plant, and equipment (PP&E) not capitalized on the balance sheet, citing safeguarding of PP&E and supporting agency ...
Threshold visual cryptography schemes with specified whiteness levels of reconstructed pixels. Des. Codes Cryptogr. 2002, 25, 15–61. [CrossRef] 6. Hofmeister, T.; Krause, M.; Simon, H.U. Contrast-optimal k out of n secret sharing schemes in visual cryptography. Theory Comput. Sci. 2000,...
The development of the Internet of Things has led to great development of data sharing and data interaction, which has made security and privacy more and more a concern for users. How to ensure the safe sharing of data, avoid the leakage of sensitive inf
In their scheme, the stego images are partitioned into several levels, and each level has a corresponding threshold. The access structure is determined by a sequence of threshold requirements. Only when each threshold meets the current requirements and all of the thresholds are satisfied can the ...