Results 91 to 100 of about 42,006 (158)

Associations of cord plasma per- and polyfluoroakyl substances (PFAS) with neonatal and child body composition and adiposity: The GUSTO study

open access: yesEnvironment International
Background: The influence of prenatal exposure to per- and poly- fluoroalkyl substances (PFAS) on birth size and offspring adiposity is unclear, especially for the newer, shorter-chained replacement PFAS.
Ling-Wei Chen   +18 more
doaj   +1 more source

Unveiling PFAS hazard in European surface waters using an interpretable machine-learning model

open access: yesEnvironment International
Per- and polyfluoroalkyl substances (PFAS), commonly known as “forever chemicals”, are ubiquitous in surface waters and potentially threaten human health and ecosystems.
Li Zhao   +6 more
doaj   +1 more source

Potential functionals versus density functionals

open access: yes, 2013
Potential functional approximations are an intriguing alternative to density functional approximations. The potential functional that is dual to the Lieb density functional is defined and properties given.
Burke, Kieron   +2 more
core   +2 more sources

Recycling of paper, cardboard and its PFAS in Norway

open access: yesJournal of Hazardous Materials Letters
Per- and polyfluoroalkyl substances (PFAS) have been used in paper products since the 1960s. PFAS emissions during the life cycle of these products have been substantial sources of these substances to the environment.
Håkon A. Langberg   +4 more
doaj   +1 more source

Cord plasma metabolomic signatures of prenatal per- and polyfluoroalkyl substance (PFAS) exposures in the Boston Birth Cohort

open access: yesEnvironment International
Background: Prenatal per- and polyfluoroalkyl substance (PFAS) exposures are associated with adverse offspring health outcomes, yet the underlying pathological mechanisms are unclear.
Zeyu Li   +7 more
doaj   +1 more source

Goodness of fit tests in random coefficient regression models [PDF]

open access: yes, 1994
Random coefficient regressions have been applied in a wide range of fields, from biology to economics, and constitute a common frame for several important statistical models.
Delicado, Pedro, Romo, Juan
core   +1 more source

Quantum finite automata: A modern introduction

open access: yes, 2014
We present five examples where quantum finite automata (QFAs) outperform their classical counterparts. This may be useful as a relatively simple technique to introduce quantum computation concepts to computer scientists.
Say, A. C. Cem, Yakaryilmaz, Abuzer
core   +1 more source

Computation with narrow CTCs

open access: yes, 2011
We examine some variants of computation with closed timelike curves (CTCs), where various restrictions are imposed on the memory of the computer, and the information carrying capacity and range of the CTC. We give full characterizations of the classes of
A. Ambainis   +13 more
core   +1 more source

Deconstructing herding : evidence from pension fund investment behavior [PDF]

open access: yes
Pension funds have been expected to invest in a wide range of securities and provide liquidity to domestic capital markets since they are the most sophisticated investors, with plenty of resources to gather private information and manage portfolios ...
Raddatz, Claudio, Schmukler, Sergio L.
core  

Serum concentrations of per- and poly-fluoroalkyl substances (PFAS) in Danish pregnant women—temporal trends during pregnancy, correlations with partners, associations with physical activity, and blood lipid concentrations

open access: yesEnvironmental Health
Background Per- and polyflouralkyl substances (PFAS) are a group of persistent chemicals used extensively in industries and consumer products due to their water-repellent properties.
Ida Karoline Bach Jensen   +11 more
doaj   +1 more source

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