Results 21 to 30 of about 225,630 (329)
Toxics, 2017 Understanding the relationship between metal level in predators and their prey is an important issue, and is usually difficult to determine because animals eat a variety of organisms.
Joanna Burger +2 more
doaj +1 more source
Heritage, 2022 In this paper, two different objects from the ethnographic collection of the museum of the Congregation of the Sacred Hearts of Jesus and Mary (Rome), a Polynesian barkcloth (tapa) and a Polynesian headdress in feathers (pa’e ku’a), were investigated to ...
Claudia Colantonio +7 more
doaj +1 more source
Valorization of keratin biofibers for removing heavy metals from aqueous solutions [PDF]
, 2018 Four common waste keratin biofibers (human hair, dog hair, chicken feathers, and degreased wool) have been used as biosorbents for the removal of heavy metal ions from aqueous solutions. Different parameters of the biosorption processes were optimized in
Carrillo Navarrete, Fernando +3 more
core +2 more sources
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2007 For the first time, it was identified a mite in a three-year-old male ostrich that had lost feathers and showed skin irritation. The animal belonged to a flock of 50 birds, located in Baixada Fluminense, in Rio de Janeiro State.
D.G. Mattos Jr +5 more
doaj +1 more source
Pattern of Post-Juvenile Moult in Common Snipe (Gallinago Gallinago) and Its Implications for Ageing of the Species [PDF]
, 2010 External ageing of Common Snipe (Gallinago gallinago) still engenders considerable problems. To improve precision of age determination on the basis of plumage characteristics a scheme of post-juvenile moult was investigated in approximately 1200 first ...
Janiszewski, Tomasz +3 more
core +1 more source
A marker suitable for sex-typing birds from degraded samples [PDF]
, 2015 A new primer set was developed for sex-typing birds, Z37B. This primer set was designed to amplify alleles of small size to render it suitable for sex-typing degraded samples, including shed feathers.
Brekke, P +3 more
core +2 more sources
Heavy Metals in Biota in Delaware Bay, NJ: Developing a Food Web Approach to Contaminants
Toxics, 2019 Understanding the relationship between heavy metal and selenium levels in biota and their foods is important, but often difficult to determine because animals eat a variety of organisms.
Joanna Burger +5 more
doaj +1 more source
Nest decoration: birds exploit a fear of feathers to guard their nest from usurpation
Royal Society Open Science, 2021 Many species of birds incorporate feathers into their nest as structural support and to insulate the eggs or offspring. Here, we investigated the novel idea that birds reduce the risk of nest usurpation by decorating it with feathers to trigger a fear ...
Tore Slagsvold, Karen L. Wiebe
doaj +1 more source
Clues to the formation of spiral structure in M51 from the ages and locations of star clusters [PDF]
, 2017 We determine the spatial distributions of star clusters at different ages in the grand-design spiral galaxy M51 using a new catalog based on multi-band images taken with the Hubble Space Telescope (HST). These distributions, when compared with the spiral
Calzetti, Daniela +10 more
core +1 more source
An investigation into the detection of latent marks on the feathers and eggs of birds of prey [PDF]
, 2014 There are numerous enhancement techniques (physical and chemical) which have been developed for the successful visualisation of latent fingermarks. Nonetheless, problems arise when latent fingermarks require enhancement on difficult surfaces such as ...
Farrugia, Kevin J. +2 more
core +4 more sources