Results 71 to 80 of about 15,168 (224)

Comparative metabolomics reveals eggshell translucency formation using LC-MS Analysis

Poultry Science
Eggshell translucency is the common problem on eggshell that become more severe with age. They are important because it influence consumer preferences and the economic value of eggs.
Ying Ma, Zhonghua Ning
doaj   +1 more source

The first description of dinosaurian eggshell from the Maastrichtian Lance Formation, Wyoming, North America [PDF]

Acta Palaeontologica Polonica
Although numerous fossils have been excavated and described from the Upper Cretaceous (Maastrichtian) Lance Formation, eggs and eggshell remains are rare and have yet to be described in detail.
Tom T.P. Van Der Linden, Jonathan J.W. Wallaard, Maarten De Rijke, René H.B. Fraaije   +3 more
doaj   +1 more source

Microemulsion‐Based Drilling Fluids Incorporating Seashell Residue Powder: A Sustainable Approach to Fluid Loss Control

Journal of Surfactants and Detergents, EarlyView.
Two microemulsion‐based drilling fluids incorporating SSRP were formulated using pine oil, the nonionic surfactant Alkonat L100W, and a glycerol/water solution. The results provide valuable insights into how surfactant‐assisted microemulsion systems can be engineered to enhance the performance and eco‐efficiency of drilling fluids.
Luara Ribeiro Viana, Raphael Ribeiro da Silva, João Pedro Gonçalves de Souza Soares, José Cavalcante de Queiroz Neto, Maria Eduarda Araújo Pessoa, Rafael Peixoto Alves, Fabiola Dias da Silva Curbelo   +6 more
wiley   +1 more source

Dog attacks on wild desert tortoises: A risk model

The Journal of Wildlife Management, EarlyView.
Domestic dogs attack and severely injure wild desert tortoises at the urban and ex‐urban interface with deserts. Severe trauma to tortoises increased 4 times to shell and limbs and 16.5 times to the gular horn over the decades between the 1970s and 2000s. Tortoises were at exponential risk of severe trauma when living within 12 km of settlements, towns,
Andrea S. Carlson, Kristin H. Berry, Jeremy S. Mack   +2 more
wiley   +1 more source

Eggshell calcification [PDF]

BMJ Case Reports, 2013
Rushad D, Patell, Rupal V, Dosi, Harshal K, Joshi, Purav C, Shah   +3 more
openaire   +2 more sources

Aromatic plants, nest bacterial diversity, and nestling condition in Corsican blue tits

Oikos, EarlyView.
According to the ‘nest protection hypothesis', some passerines incorporate fresh aromatic plants into their nests which reduce pathogens that can negatively affect nestlings. We experimentally evaluated the effect of five aromatic plant species on the nest bacterial microbiota of Corsican blue tits Cyanistes caeruleus.
Hélène Dion‐Phénix, Gabrielle Gingras, Claire Doutrelant, Anne Charmantier, Steven W. Kembel, Denis Réale   +5 more
wiley   +1 more source

Effect of elevated temperature on eggshell, eggshell powder and eggshell powder mortars for masonry applications

Journal of Building Engineering, 2019
Abstract Eggshell powder (ESP) may be an alternative natural sustainable supplementary cementitious material (SCM). Mortar specimens containing 0, 5, 10 and 20 wt. % of ESP as Portland cement replacements were submitted to 20, 150, 300 and 450°C.
Cree, Duncan, Pliya, Prosper
openaire   +4 more sources

From the brink of extinction to regulation: northern Europe's white‐tailed eagles now face density dependence and climate constraints after rapid population growth

Oikos, EarlyView.
Population growth reflects the combined influence of regulation and density‐independent factors operating through demographic processes. Under exceptional circumstances (e.g. populations recovering from near‐extinction), growth may initially be weakly regulated but typically slows as negative density dependence (NDD) sets in.
Bård‐Jørgen Bårdsen, Elisabeth Hansen, Jan Ove Bustnes   +2 more
wiley   +1 more source

Data on CaO and eggshell catalysts used for biodiesel production

Data in Brief, 2018
This research investigated the production of biodiesel from soybean oil (transesterification process) using pure calcium oxide and calcium oxide obtained from eggshell as heterogeneous catalysts.
Ayoola A. Ayodeji, Ojewumi E. Modupe, Babalola Rasheed, James M. Ayodele   +3 more
doaj   +1 more source

Eggshell biliverdin concentration does not sufficiently predict eggshell coloration

Journal of Avian Biology, 2016
Avian eggshell coloration may have arisen due to selection on the biological, chemical, or physical properties of the pigments embedded within the eggshell, or due to selection on the coloration that emerges due to pigment deposition. Within both hypothetical frameworks, pigment‐based eggshell coloration would be related to metrics
Michael W. Butler, Haleigh S. Waite
openaire   +1 more source