Fabrication of TiO2 Crystalline Coatings by Combining Ti-6Al-4V Anodic Oxidation and Heat Treatments [PDF]
International Journal of Biomaterials, 2015 The bio- and hemocompatibility of titanium alloys are due to the formation of a TiO2 layer. This natural oxide may have fissures which are detrimental to its properties. Anodic oxidation is used to obtain thicker films. By means of this technique, at low
María Laura Vera +3 more
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Inside a duck-billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia. [PDF]
Anat Rec (Hoboken)Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Aureliano T +3 more
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Processes that drive the population structuring of Jenynsia lineata (Cyprinidontiformes, Anablepidae) in the La Plata Basin. [PDF]
Ecol Evol, 2021 The processes of population diversification are complex and are not limited to a single mechanism. Population structuring may lead to population reproductive isolation and ultimately to speciation. Abstract The distribution of genetic diversity across a species distribution range is rarely homogeneous, as the genetic structure among populations is ...
Briñoccoli YF +7 more
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Paedomorphosis and retention of juvenile diet lead speciation in a group of Neotropical snakes (Colubroides-Philodryadini) [PDF]
Scientific ReportsDipsadidae is one of the largest clades of extant reptiles, showing an impressive morphological and ecological diversity. Despite this fact, the developmental processes behind its diversity are still largely unknown.
Mariana Chuliver, Agustín Scanferla
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Body size and evolutionary rate analyses reveal complex evolutionary history of Alvarezsauria. [PDF]
CladisticsAbstract Some of the smallest examples of dinosaurian body size are from alvarezsaurians, an enigmatic group of maniraptoran coelurosaurians with a peculiar combination of anatomical features unique among theropods. Despite the large number of alvarezsaurian species described worldwide and the increased understanding this has provided, the body‐size ...
Meso JG +8 more
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A new Cretaceous thyreophoran from Patagonia supports a South American lineage of armoured dinosaurs [PDF]
Scientific Reports, 2022 The early evolution of thyreophoran dinosaurs is thought to have occurred primarily in northern continents since most evidence comes from the Lower and Middle Jurassic of Europe and North America.
Facundo J. Riguetti +2 more
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3D Printing High-Consistency Enzymatic Nanocellulose Obtained from a Soda-Ethanol-O2 Pine Sawdust Pulp [PDF]
Bioengineering, 2019 Soda-ethanol pulps, prepared from a forestry residue pine sawdust, were treated according to high-consistency enzymatic fibrillation technology to manufacture nanocellulose.
Heli Kangas +8 more
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Effect of Ethyl Acetate on the Defatting of Leaves in the Extraction of Stevia rebaudiana Bertoni [PDF]
Food Technology and BiotechnologyResearch background. The process for producing purified steviol glycosides from Stevia rebaudiana leaves (stevia) generally involves pretreatments, extraction, purification and crystallization.
Liliana Celaya, Nicolás Kolb Koslobsky
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Biocomposites of Bio-Polyethylene Reinforced with a Hydrothermal-Alkaline Sugarcane Bagasse Pulp and Coupled with a Bio-Based Compatibilizer [PDF]
Molecules, 2020 Bio-polyethylene (BioPE, derived from sugarcane), sugarcane bagasse pulp, and two compatibilizers (fossil and bio-based), were used to manufacture biocomposite filaments for 3D printing.
Nanci Vanesa Ehman +6 more
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Novel type of egg-clustering in threadsnakes (Serpentes: Leptotyphlopidae) [PDF]
Vertebrate Zoology, 2023 Snakes lay their eggs in clutches of different size, which are usually attached to each other forming a cluster. Egg-clustering is a widespread phenomenon across alethinophidian snakes, mostly recorded in Pythonoidea and caenophidian clades.
Mariana Chuliver, Agustín Scanferla
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