Results 231 to 240 of about 70,537 (294)

Paleoenvironmental Stasis for the Bioturbating Community During the Paleocene-Eocene Thermal Maximum at the Southern Iberian Margin. [PDF]

Geobiology
Miguez-Salas O, Rodríguez-Tovar FJ, Pujalte V.   +2 more
europepmc   +1 more source

Barrier Properties and Crystalline Structure of Biowax‐Containing Water‐Based Polymer Dispersions Under Different Processing Conditions

Journal of Applied Polymer Science, EarlyView.
This study investigates the nanoscale structures of biowax materials using the wide‐angle x‐ray scattering method. The biowaxes are combined with water‐based polymer dispersions to create barrier coatings for fiber‐based food packaging materials.
Sai Li, Anneli E. Lepo, Kirsi J. Svedström   +2 more
wiley   +1 more source

Austrocedrus from the Late Cretaceous of Antarctica and its implications for the early evolution of southern cypresses (Callitroideae, Cupressaceae). [PDF]

Am J Bot
Pfeiler KC, Matsunaga KKS, Andruchow-Colombo A, Iglesias A, Smith SY, Atkinson BA.   +5 more
europepmc   +1 more source

Diol Chain‐Length Effects in Adipate and Succinate Polyesters for Thermoplastic Polyurethanes

Journal of Applied Polymer Science, EarlyView.
This study examines 20 aliphatic polyesters as soft segments for thermoplastic polyurethanes (TPU), synthesized from adipic or succinic acid and diols (C2, C3, C4, C5, and C6). A pronounced odd‐even effect shows that even diols crystallize, while odd diols remain amorphous.
Dario Brand, Stephanie Duettmann, Kevin Marschner, Apolline Limouzin, Brigitte Voit   +4 more
wiley   +1 more source

Polychaete annelids from the earliest Cambrian Period. [PDF]

Proc Natl Acad Sci U S A
Xian X, Zhang H, Xiao S, Waloszek D, Maas A, Duan B.   +5 more
europepmc   +1 more source

Mechanical Properties and Thermo‐Oxidative Aging of Hybrid EPDM Formulations With Bio‐Based Oils

Journal of Applied Polymer Science, EarlyView.
This study evaluates bio‐based oil as an eco‐friendly replacement for paraffinic oil in EPDM rubber. While pure bio‐oil matches conventional mechanical properties, specific blends (25% and 75%) improve tensile strength and stiffness. The 50% blend requires tempering to optimize its sulfur network and morphology, eventually yielding a 35% strength ...
D. Šimić, V. Spanheimer, L. Barbosa, U. Giese, D. Katrakova‐Krüger   +4 more
wiley   +1 more source

Competing methods of divergence time estimation recover diverse evolutionary timescales. [PDF]

Proc Biol Sci
Davies SEL, Tasca A, Álvarez-Carretero S, Brochu C, Pisani D, Donoghue PCJ.   +5 more
europepmc   +1 more source

Compositionally Engineered Carboxymethyl Cellulose‐Based Optical Fibers With Exceptionally Low Optical Loss and Quantitative Humidity Sensing

Advanced Physics Research, EarlyView.
Carboxymethyl cellulose‐based biopolymer optical fibers are fabricated using aqueous wet spinning. The fibers exhibit record‐low optical attenuation in polysaccharide‐based waveguides while maintaining efficient transmission across the visible‐to‐near‐infrared region of the electromagnetic spectrum.
Jani Patrakka, Alizee Sanouillet, Ville Hynninen, Nonappa   +3 more
wiley   +1 more source

Enamel proteins from six Homo erectus specimens across China. [PDF]

Nature
Fu Q, Wu Z, Bennett EA, Xing S, Ji Q, Dong Z, Rao H, Gu X, Dang Y, Xing J, Zhou K, Feng X.   +11 more
europepmc   +1 more source

Cretaceous diversity of Schizaeales in Antarctica, Escuderia livingstonensis gen. et sp. nov., a permineralized fertile organ from Livingston Island, and its ecological implications combined with associated biota. [PDF]

Ann Bot
Nishida H, Leppe C M, Kubota A, Legrand J.   +3 more
europepmc   +1 more source