Results 111 to 120 of about 41,285,632 (393)

Influence Factors of Emergency Medical Services (EMS) Prehospital Time Interval Variety: A Systematic Review

open access: yesJurnal Ners, 2020
Introduction: Prehospital time interval was one of important indicators of EMS performance. It consisting of total prehospital time (TPT), response time (RT), on-scene time (OST) and transport time (TT) in the world is very diverse.
Anggun Setyarini, Heni Dwi Windarwati
doaj   +1 more source

The Effect of Uncertainty in Regulatory Delay on the Rate of Innovation [PDF]

open access: yes, 1979
Earlier studies examining house pricing have mainly focused on the secondary market and have often overlooked the primary market and newly produced housing units.
Gustavsson, Filip, Vahtola, Simon
core   +1 more source

Biological and technical complexities in analyzing extracellular vesicle immune interactions in B‐cell malignancies

open access: yesFEBS Letters, EarlyView.
Extracellular vesicles (EVs) mediate intercellular communication in tumor immune microenvironments. However, their role in B‐cell malignancies remains poorly defined, owing to biological complexity and technical challenges in EV isolation and analysis.
Daniel Bachurski, Michael Hallek
wiley   +1 more source

Factoring a Graph in Polynomial Time

open access: yesEuropean Journal of Combinatorics, 1987
The Cartesian product \(G\times H\) of graphs G and H has vertices (g,h) where g is a vertex in G and h a vertex in H. Two vertices of \(G\times H\), say \((g_ 1,h_ 1)\) and \((g_ 2,h_ 2)\), are connected by an edge in \(G\times H\), just when either \(\{g_ 1,g_ 2\}\) is an edge of G and \(h_ 1=h_ 2\), or when \(g_ 1=g_ 2\) and \(\{h_ 1,h_ 2\}\) is an ...
openaire   +2 more sources

Observations on Factors Affecting Performance of MapReduce based Apriori on Hadoop Cluster

open access: yes, 2017
Designing fast and scalable algorithm for mining frequent itemsets is always being a most eminent and promising problem of data mining. Apriori is one of the most broadly used and popular algorithm of frequent itemset mining.
Garg, Rakhi   +2 more
core   +1 more source

Origin of life: β‐sheet amyloid conformers as the primordial functional polymers on the early Earth and their role in the emergence of complex dynamic networks

open access: yesFEBS Letters, EarlyView.
The amyloid world hypothesis of the origin‐of‐life posits that the first functional polymers on the early Earth were structurally stable cross‐β‐sheet‐based peptide amyloids capable of Darwinian‐like evolution. Peptide amyloids display self‐replication and information transfer, as well as catalytic, adaptive, and evolutive properties.
Carl Peter J. Maury
wiley   +1 more source

Trends in mortality from gastrointestinal, hepatic, and pancreatic cancers in the United States: A comprehensive analysis (1999–2020)

open access: yesJGH Open
Background and Aim This study investigates temporal trends in gastrointestinal cancer‐related mortality in the United States between 1999 and 2020, focusing on differences by sex, age, and race. Methods We investigated the Centers for Disease Control and
Hassam Ali   +10 more
doaj   +1 more source

Deriving time discounting correction factors for TTO tariffs [PDF]

open access: yes
The Time Tradeoff (TTO) method is a popular method for valuing health state utilities and is frequently used in economic evaluations. However, this method produces utilities that are distorted by several biases.
Attema, Arthur, Brouwer, Werner
core   +1 more source

The epithelial barrier theory proposes a comprehensive explanation for the origins of allergic and other chronic noncommunicable diseases

open access: yesFEBS Letters, EarlyView.
Exposure to common noxious agents (1), including allergens, pollutants, and micro‐nanoplastics, can cause epithelial barrier damage (2) in our body's protective linings. This may trigger an immune response to our microbiome (3). The epithelial barrier theory explains how this process can lead to chronic noncommunicable diseases (4) affecting organs ...
Can Zeyneloglu   +17 more
wiley   +1 more source

Bus Travel TIME in the Mixed Traffic Based on Statistica Neural Network [PDF]

open access: yes, 2010
This paper presents the assessment of a number of factors affecting bus travel time and a relationship model between those factors and bus travel time. Statistica Neural Network (SNN) tool is used to solve this complex phenomenon.
Kamaruddin, I. (Ibrahim)   +3 more
core  

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