Results 81 to 90 of about 22,224 (264)

Trace element bioaccumulation in the plumage of common blackbirds (Turdus merula Linnaeus, 1758) from Agigea, Romania

Present Environment and Sustainable Development
The purpose of this research was to establish the baseline concentrations of thirteen trace elements (Cd, Co, Cr, Cu, Ni, Pb, Fe, Mg, Na, K, Sr, Ca, and Zn) in feathers of the common blackbird Turdus merula (n=9) at the Natura 2000 site “Marine Dunes ...
Diana IACOB, Emanuela PADURARU, Emanuel-Ștefan BALTAG, Vicențiu-Robert GABOR, Roxana JIJIE, Carmen GACHE, Iuliana Gabriela BREABĂN, Viorica RARINCA, Gabriel PLAVAN, Mircea NICOARĂ   +9 more
doaj   +1 more source

Homology and Potential Cellular and Molecular Mechanisms for the Development of Unique Feather Morphologies in Early Birds

Geosciences, 2012
At least two lineages of Mesozoic birds are known to have possessed a distinct feather morphotype for which there is no neornithine (modern) equivalent. The early stepwise evolution of apparently modern feathers occurred within Maniraptora, basal to the ...
David J. Bottjer, Hailu You, Cheng-ming Chuong, Luis M. Chiappe, Jingmai K. O’Connor   +4 more
doaj   +1 more source

Wildfire Emissions From European Boreal Fuels: Effects of Fuel Type and Moisture Content

Fire and Materials, EarlyView.
ABSTRACT The increasing severity of wildfires poses significant challenges through the release of greenhouse gases and other harmful gases and particles. Although field measurements exist, there is a lack of systematic data collection to understand the influence of moisture content on the particle and gas emissions of boreal fuels, particularly for ...
Robert Svensson, Evalyne Arinaitwe, Frida Vermina Plathner, Johan Sjöström, Paul Otxoterena, Anna Sandinge, Per Blomqvist, Margaret McNamee   +7 more
wiley   +1 more source

Conflict between cultural development and wildlife conservation: A potential threat to Reeves's pheasant (Syrmaticus reevesii)

Conservation Letters
Reeves's pheasant feathers are used to make headgears for the Chinese opera—Xiqu; however, this posed a considerable threat to the bird's population before it was banned from hunting/trade.
Xinming Li, Bochi Wang, Jing Zhang, Geoffrey W. H. Davison, Nan Wang   +4 more
doaj   +1 more source

Hairs, feathers and fibres in Mesolithic contexts – recommendations for field archaeologists

Acta Academiae Artium Vilnensis
Microarchaeological research has drawn attention to new microscopic categories of finds such as charcoal and ash, archaeobotanical remains, and non-pollen palynomorphs, including textile fibres.
Tuija Kirkinen, Kristiina Mannermaa
doaj   +1 more source

Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen

Geological Journal, EarlyView.
By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang, Aibing Chen, Jian Yang, Yuan Zhang   +3 more
wiley   +1 more source

Revisiting the Relationship Between Job Insecurity and Work Engagement: The Moderating Roles of Contract Type and Trait Negative Affectivity

Human Resource Development Quarterly, EarlyView.
ABSTRACT This study proposes and tests a curvilinear effect of job insecurity on work engagement, while also examining the moderating roles of employment contract type (permanent vs. temporary) and trait negative affectivity on this relationship. Utilizing two waves of time‐lagged data from a sample of 397 participants (273 permanent and 124 temporary ...
Hui‐Hsien Hsieh, Kuo‐Yang Kao
wiley   +1 more source

A uterine‐centric view of reproductive senescence: Genetic insights into late‐life performance in laying hens

iMetaOmics, EarlyView.
This study identifies uterus weight as a heritable (h2 = 0.45) intermediate phenotype that independently associates with late‐life egg production and eggshell quality in aged laying hens. Genome‐wide association study (GWAS) reveals a genome‐wide significant locus on chromosome 3 and suggestive loci on chromosome 11 for uterus weight, mediation ...
Junnan Zhang, Mingyue Gao, Ronglang Cai, Xinwei Jiang, Boxuan Zhang, Zhaojie Li, Ning Yang, Congjiao Sun   +7 more
wiley   +1 more source

Optimizing feather hydrolysate via machine learning for microbial recycling of waste concrete fines

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND The concrete industry faces significant challenges from CO2 emissions and the disposal of waste concrete fines (WCF). Microbially induced calcite precipitation (MICP) can bind WCF into bioconcrete, but the high cost of commercial culture media hinders its application.
Henrietta Ottová, Barbora Malíková, Václav Nežerka, Petr Holeček, Dana Koňáková, Hana Stiborová   +5 more
wiley   +1 more source

The Single, the Whole, and the Pooled: Implications of Tissue Choice for Stable Isotope Analysis

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT In the exciting era of non‐invasive tissue sampling and data reuse via open access databases, it is increasingly challenging to ensure comparability of sample types for stable isotope analysis in ecology. According to the theoretical predictions about the changes in the stable isotope values between prey and consumers and tissue turnover rates,
Paride Balzani, Nadège Belouard, Lukáš Veselý, Antonín Kouba   +3 more
wiley   +1 more source