Results 1 to 10 of about 6,472 (205)

Characterization and phylogenetic analysis of the complete mitochondrial genome of Terapon theraps (Perciformes: Terapontidae) [PDF]

open access: yesMitochondrial DNA. Part B. Resources, 2021
We assembled the complete mitochondrial genome of Terapon theraps based on high-throughput Illumina sequencing. The mitochondrial genome of T. theraps is 16,587 bp in length, containing 13 protein-coding genes (PCGs), 22 tRNAs, two rRNAs, and one ...
Lei Zeng   +3 more
doaj   +2 more sources

Complete mitochondrial genomes of Notropis oxyrhynchus and Notropis buccula (Cypriniformes: Leuciscidae) [PDF]

open access: yesMitochondrial DNA. Part B. Resources
The Leuciscidae (minnows, shiners and relatives) is a diverse family of freshwater fishes with many species endangered due to anthropogenic stressors. Notropis oxyrhynchus and Notropis buccula are two shiners found only in the upper Brazos River basin in
A. T. Fields   +8 more
doaj   +2 more sources

Epistolary Greetings in the Oxyrhynchus Papyri [PDF]

open access: yesTyndale Bulletin, 2019
This paper examines the function of greetings in letters in the Oxyrhynchus Papyri by focusing on vocabulary, how individuals and groups of people are described, questions relating to format and presentation, differences in format, particularly when ...
Peter M. Head
doaj   +3 more sources

Mitochondrial DNA patterns describe the evolutionary history of the bonnethead shark Sphyrna tiburo (Linneus 1758) complex in the western Atlantic Ocean. [PDF]

open access: yesJ Fish Biol
Abstract The apparent lack of physical barriers in the marine realm has created the conception that many groups have a constant gene flow. However, changes in ocean circulation patterns, glacial cycles, temperature, and salinity gradients are responsible for vicariant events in many fish species, including sharks.
Ochoa-Zavala M   +6 more
europepmc   +2 more sources

Dynamic genetic differentiation drives the widespread structural and functional convergent evolution of snake venom proteinaceous toxins [PDF]

open access: yesBMC Biology, 2022
Background The explosive radiation and diversification of the advanced snakes (superfamily Colubroidea) was associated with changes in all aspects of the shared venom system.
Bing Xie   +7 more
doaj   +2 more sources

Potential metabolic records in isotope signals of chondrichthyan hard tissues. [PDF]

open access: yesJ Fish Biol
Abstract Recent advances have demonstrated that the field metabolic rates (FMRs) of teleost fishes can be quantified from stable isotope compositions of carbonate‐biomineralized otoliths. Bones and teeth, in addition to bioapatite, contain carbonate and should retain a similar isotopic expression of metabolic rate.
Díaz-Delgado E   +4 more
europepmc   +2 more sources

The Chemistry and Biology of the Tetrodotoxin Natural Product Family. [PDF]

open access: yesAngew Chem Int Ed Engl
Tetrodotoxin is best known as the poison of the pufferfish, which is a delicacy in Japanese cuisine. Its toxicity arises from the selective blockage of NaV channels, which is depicted for the NaV1.7 pore, highlighting the DEKA motif, which permeates sodium ions.
Nißl B   +6 more
europepmc   +2 more sources

Environmental heterogeneity influences liana community differentiation across a Neotropical rainforest landscape. [PDF]

open access: yesEcol Evol
By analyzing liana community variation among land units (LUs) that differ in geomorphology and soil properties along a 640‐ha tropical rainforest landscape in a neotropical reserve, we found strong evidence supporting our hypothesis that environmental heterogeneity, as represented by discrete LUs, promotes differentiation in liana composition across ...
Ek-Rodríguez IL   +4 more
europepmc   +2 more sources

CIRCUS ACTIVITIES IN EGYPT DURING THE ROMAN AND BYZANTINE PERIOD; AN ASPECT OF ENTERTAINMENT AND HERITAGE [PDF]

open access: yesMaǧallaẗ Kulliyyaẗ Al-Sīyāḥaẗ wa Al-Fanādiq (Ǧāmiʿaẗ Al-Mansoura), 2023
السيرك هو أحد أشكال الترفيه فى مصر الرومانى والبيزنطية وكان يضم العديد من البرامج المختلفة التي يتم تقديمها بداخله. وهو مبنى أستخدم من الرومان لسباقات العربات وغيرها من وسائل التسلية مثل؛ التمثيل الإيمائي والعروض المسرحية.
Engy Fekry Abd Elshahed Abd Elmalk
doaj   +1 more source

Home - About - Disclaimer - Privacy