Results 71 to 80 of about 2,243,062 (248)

attribute-tree based hierarchical hidden credential model

open access: yes, 2012
Hidden credentials are useful in situations where requests for service, credentials, access policies and resources are extremely sensitive. Current research related to hidden credentials has the shortage that the attribute model cannot provide the ...
Ge Weijin, Hu Xiaohui
core   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Assortment Variety: Attribute versus Product-Based [PDF]

open access: yes
Retailers need to decide on the content and structure of their product assortments, and thereby on the degree of variety that they offer to their customers.This paper compares measures of assortment variety and relates them to underlying variety ...
Herpen, H.W.I. van, Pieters, R.
core  

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

UAR-CFNet: Association Rule-Enhanced Cross-Domain Recommendation Under Data Sparsity Constraints

open access: yesSystems
To effectively alleviate the common problems of information noise and information loss in personalized recommendation systems, as well as to address data sparsity and cold-start issues, this paper proposes a collaborative filtering recommendation model ...
Shengshai Zhang   +3 more
doaj   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

open access: yesFEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward   +2 more
wiley   +1 more source

An ameliorated two-stage randomized response model for estimating a rare stigmatized characteristic using Poisson distribution

open access: yesKuwait Journal of Science, 2019
The present work sheds light on the estimation procedure of mean number of per- sons bearing a rare sensitive characteristic utilizing Poisson distribution.
G N Singh, Surbhi Suman
doaj  

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