A new type of turtle egg fossil was established: Emydoolithus laiyangensis oogen. et oosp. nov.. Based on its elliptical morphological shape, rigid eggshells, and eggshell characteristics, it is different from other types of round chelonian egg fossils. It is the second chelonian egg fossil found in Cretaceous in China. This discovery shows the Laiyang ecosystem in Late Cretaceous is more diver...

The aim of this study was to investigate the removal Cu2+ using eggshells and iron-modified eggshells. Batch adsorption experiments were conducted assess impact various operational parameters, including contact time, pH, isotherms, kinetics. samples characterized X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy-energy-dispersive (SEM-EDS). XR...

1. Environmental factors such as temperature, humidity and partial oxygen pressure can affect avian eggshell structure because gas exchange across the shell must allow sufficient water loss while preventing dehydration of the embryo. Studies of species with known chronology of colonization of novel environments provide a powerful insight into the relative importance of ecological factors shapin...

Despite the many reconstructions of fossil material that have recently appeared in the literature, dinosaur eggshells have never been reconstructed using computing techniques. Using the EMAC 3-D modelling methodology, we reconstruct a section of the Late Cretaceous Megaloolithus siruguei eggshell, which has a particularly complex pore system, exhibiting an intricate network of vertical, oblique...

Urban environments present novel and challenging habitats to wildlife. In addition to well-known difference in abiotic factors between rural and urban environments, the biotic environment, including microbial fauna, may also differ significantly. In this study, we aimed to compare the change in microbial abundance on eggshells during incubation between urban and rural populations of a passerine...

Preserved eggs (pidans) are used in traditional Chinese cuisines. However, the alkaline conditions and metal ions generated during its preparation have caused some concerns. This study developed an innovative process for pidan processing using incinerated eggshell powder, abundant by-product that can generate a highly solution provide calcium (Ca2+). Either 0.5, 3, or 5% of powder was basic pic...

Ostrich eggshells are excellent examples of avian biomineralization. Interest in these is focused on their potential as a food source, example biomaterial for medical and industrial applications, the use fossil remains paleoenvironmental reconstructions. Due to this interest, there some information about aspects eggshell biomineralization, but it scattered different publications limited scope m...

The internal hydroforming of large stainless-steel eggshells from a stepped preform is investigated in this paper. nominal major and minor axes the eggshell were 1537 1070 mm, respectively. was fabricated thin-walled (1.9 mm thick) sheets comprised twelve conical segments inscribed inside target eggshell. then hydroformed, its wall thickness shape measured. yield load distribution material hard...

Improving Fine Motorics Through Collage Activities Using Eggshells in Group B Children of the Flamboyan Sarita Kindergarten, Punti Village, Soromandi Bima District (NTB). Thesis. The main problem this study is how to improve fine motor skills through collage activities using eggshells for children Kindergarten Sarita, District, This aims group at type research class action (Classroom Action Res...

Although a considerable research effort has gone into studying the dietary pathways of metals to the bodies of laying female birds and their eggs in recent years, no detailed investigations have yet been carried out relating the properties of the biogeochemical environment at large spatial scales to eggshell trace element levels in typical soil-invertebrate feeding birds under natural condition...