Results 51 to 60 of about 3,326,211 (292)

Offline and hungry: the effect of internet use on the food insecurity of Indonesian agricultural households

open access: yesAgricultural and Food Economics, 2023
Food insecurity is essential since its prevalence may hinder an individual or an economy from developing. The issue still lacks attention in Indonesia, as reflected in the lagging efforts to reduce food insecurity.
Dela Maria Ardianti   +2 more
doaj   +1 more source

High redshift X-ray galaxy clusters. I. The impact of point sources on the cluster properties

open access: yes, 2007
The current generation of X-ray observatories like Chandra allows studies with very fine spatial details. It is now possible to resolve X-ray point sources projected into the cluster diffuse emission and exclude them from the analysis to estimate the ...
Allen   +35 more
core   +1 more source

A substructure analysis of the A3558 cluster complex [PDF]

open access: yes, 1998
The "algorithm driven by the density estimate for the identification of clusters" (DEDICA, Pisani 1993, 1996) is applied to the A3558 cluster complex in order to find substructures.
Bardelli, S.   +4 more
core   +3 more sources

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior   +7 more
wiley   +1 more source

X-ray bright active galactic nuclei in massive galaxy clusters III: New insights into the triggering mechanisms of cluster AGN

open access: yes, 2014
We present the results of a new analysis of the X-ray selected Active Galactic Nuclei (AGN) population in the vicinity of 135 of the most massive galaxy clusters in the redshift range of 0.2 < z < 0.9 observed with Chandra.
Allen, S. W.   +8 more
core   +1 more source

Eigenvalue Decomposition as a Generalized Synchronization Cluster Analysis [PDF]

open access: yes, 2007
Motivated by the recent demonstration of its use as a tool for the detection and characterization of phase-shape correlations in multivariate time series, we show that eigenvalue decomposition can also be applied to a matrix of indices of bivariate phase
Anderson T. W.   +3 more
core   +6 more sources

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada   +6 more
wiley   +1 more source

Finite Size Scaling Analysis with Linked Cluster Expansions [PDF]

open access: yes, 1996
Linked cluster expansions are generalized from an infinite to a finite volume on a $d$-dimensional hypercubic lattice. They are performed to 20th order in the expansion parameter to investigate the phase structure of scalar $O(N)$ models for the cases of
Borgs   +5 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Feature learning augmented with sampling and heuristics (FLASH) improves model performance and biomarker identification

open access: yesnpj Systems Biology and Applications
Big biological datasets, such as gene expression profiles, often contain redundant features that degrade model performance and limit generalization across independent datasets with complexities like class imbalance and hidden sub-clusters.
Shivam Kumar   +2 more
doaj   +1 more source

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