Results 91 to 100 of about 2,448,327 (358)

Occupational exposure to gases/fumes and mineral dust affect DNA methylation levels of genes regulating expression [PDF]

open access: yes, 2019
Many workers are daily exposed to occupational agents like gases/fumes, mineral dust or biological dust, which could induce adverse health effects. Epigenetic mechanisms, such as DNA methylation, have been suggested to play a role.
't Hoen, Peter-Bram   +65 more
core   +1 more source

Composição corporal e exigências líquidas de macroelementos minerais de bovinos F1 Simental x Nelore Body composition and net requirements of macroelement minerals of F1 Simental x Nellore bulls

open access: yesRevista Brasileira de Zootecnia, 1999
Os efeitos de diferentes níveis de concentrado nas rações sobre as exigências líquidas de Ca, P, Mg, Na e K foram estudados. Vinte e nove bovinos F1 Nelore x Simental, machos não-castrados, com, em média, 17 meses de idade e 354 kg PV inicial, foram ...
Marcelo de Andrade Ferreira   +6 more
doaj  

A Vascularized Microphysiological System Reproducing Endochondral Ossification in Vitro to Study Ewing Sarcoma Proliferation and Migration

open access: yesAdvanced Functional Materials, EarlyView.
A biofabricated 3D in vitro model recapitulating endochondral ossification (ECO) is described, mimicking the steps from condensation to chondrogenesis and hypertrophy, culminating with vascularization of the hypertrophic construct. As a model proof of concept application, Ewing Sarcoma cells are seeded in the model, showing modifications in their ...
Maria Vittoria Colombo   +13 more
wiley   +1 more source

Mineral resource maps and safeguarding areas : a Welsh case study [PDF]

open access: yes, 2010
Access to economic mineral resources in the UK, such as sand and gravel and crushed rock aggregate, is vital to ensure the continued supply of raw materials that are essential for maintaining national infrastructure and underpinning the economy ...
Bide, Tom, Wrighton, Chloe
core  

Dietary levels of potassium for broiler chickens

open access: yesBrazilian Journal of Poultry Science, 2005
Three experiments were conducted to determine the nutritional requirements of potassium (K) for male Ross broiler chickens, from 8 to 21, 22 to 42 and 43 to 53 days of age. The following parameters were evaluated: body weight gain (BWG), feed intake (FI)
JE Oliveira   +4 more
doaj   +1 more source

High‐Performance Low‐Emissivity Paints Enabled by N‐Doped Poly(benzodifurandione) (n‐PBDF) for Energy‐Efficient Buildings

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a scalable and colored low‐emissivity (low‐e) paint achieved by spraying an ultrathin n‐doped poly(benzodifurandione) (n‐PBDF) coating onto various colored substrates. The low‐e paint enhances thermal regulation by reducing mid‐infrared thermal emissivity to 0.19, thereby stabilizing indoor temperatures across diverse climates ...
Xiaojie Liu   +13 more
wiley   +1 more source

Cinética de fósforo com modelos matemáticos em ovinos adultos Phosphorus kinetics using mathematical models for adult sheep

open access: yesPesquisa Agropecuária Brasileira, 2007
O objetivo deste trabalho foi avaliar, por meio de modelos matemáticos, o metabolismo de fósforo (P) em ovinos adultos suplementados com teores crescentes de farinha de ossos calcinados com 0, 1, 2 e 3 g de P por animal por dia.
Helder Louvandini   +1 more
doaj   +1 more source

Multifunctional Hydroxyapatite Coated with Gallium Liquid Metal‐Based Silver Nanoparticles for Infection Prevention and Bone Regeneration

open access: yesAdvanced Functional Materials, EarlyView.
A multifunctional hydroxyapatite (HAp) coating integrated with silver‐gallium liquid metal nanoparticles (HAp‐Ag‐GaNPs) exhibits dual antibacterial and osteogenic properties. It effectively inhibits Gram‐positive and Gram‐negative bacteria, including resistant strains, while enhancing bone regeneration.
Ngoc Huu Nguyen   +17 more
wiley   +1 more source

The mineral resources of the English Channel and Thames Estuary [PDF]

open access: yes, 2013
This report accompanies the Marine mineral resource map the marine sand and gravel resources of the English Channel and Thames Estuary (Bide et al, 2012).
Balson, P.S.   +5 more
core  

Technical note: Absorption aerosol optical depth components from AERONET observations of mixed dust plumes [PDF]

open access: yes, 2019
© Author(s) 2019.Absorption aerosol optical depth (AAOD) as obtained from sun–sky photometer measurements provides a measure of the light-absorbing properties of the columnar aerosol loading.
D. Müller   +4 more
core   +3 more sources

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