Results 31 to 40 of about 10,110 (292)

DISPERSION AND FLOATING PERCENTAGE AS A SIMPLE INDICATOR OF THE AMOUNT OF AMORPHOUS CARBONS IN CARBON NANOTUBE ARRAYS

open access: yesJournal of Advanced Materials in Engineering, 2021
Carbon nanotubes contain impurities and deamorphization is one of the methods of their purification. In this study, for the first time, a solution of piranha with a ratio of 3:1 (30 ml sulfuric acid + 10 ml hydrogen peroxide) as well as microwave ...
F. Delshad, M. Maghrebi, M. Baniadam
doaj  

How to Survive a (Juvenile) Piranha Attack: An Integrative Approach to Evaluating Predator Performance

open access: yesIntegrative Organismal Biology, 2023
  Figures Cory cat panel figure Drawing of bite force measuring equipment and indentation rig Pygocentrus nattereri jaw muscle morphology and skull anatomy Box plot grid of number of Pygocentrus nattereri bites before puncture along different body ...
A. Lowe, M. Kolmann, E. W. Paig-Tran
semanticscholar   +1 more source

Morphological and histometric features of the caudal kidney in piranha Pygocentrus nattereri (Characiformes: Serrasalmidae)

open access: yesNeotropical Ichthyology, 2023
Pygocentrus nattereri is a widely distributed species in the Neotropical region and a potential bio-indicator. Kidneys have functions in fish physiology, allowing them to live in different environments.
Sandriely F. Marcondes   +7 more
semanticscholar   +1 more source

Endoparasitic fauna of Serrasalmus spp. (Characidae: Serrasalminae) in a neotropical floodplain

open access: yesActa Scientiarum: Biological Sciences, 2016
Floodplains systems present complex biodiversity and upper Paraná river floodplain retains a wide variety of terrestrial and aquatic species. Serrasalmus marginatus (nonindigenous species) and Serrasalmus maculatus (native species) are part of this ...
Guilherme Pomaro Casali   +1 more
doaj   +1 more source

Heterologous Production and Evaluation of the Biological Activity of Cystatin-B From the Red Piranha Pygocentrus nattereri

open access: yesFrontiers in Genetics, 2022
Cystatin proteins are known to form a superfamily of cysteine protease inhibitors, which play a key role in protein degradation and are related to different physiological processes, such as development and immunity.
Juan Antonio Ramirez Merlano   +1 more
semanticscholar   +1 more source

Multiparasitism by myxozoans in Pygocentrus nattereri (Characiformes: Serrasalmidae) from Sacaizal Lake, in the municipality of Pracuúba, state of Amapá, Brazil [PDF]

open access: yesRevista Brasileira de Parasitologia Veterinária
The present study described the morphological characteristics of myxospores of cnidarians belonging to the class Myxozoa at different infection sites in Pygocentrus nattereri Kner 1858 (Characiformes: Serrasalmidae), found in Lake Sacaizal, in the ...
Nayana Moraes de Sena   +4 more
doaj   +1 more source

Impact of Surface Treatments and Post-Deposition Annealing Upon Interfacial Property of ALD-Al₂O₃ on a-Plane GaN

open access: yesIEEE Journal of the Electron Devices Society, 2020
Optimization of interface characteristics between dielectric and non-polar GaN surface is very important and urgent for vertical GaN MOS device whose channel is perpendicular to the conventional cplane.
Yanni Zhang   +8 more
doaj   +1 more source

The Effect of Combined Sandblasting and Piranha Solution Treatment on Resin Cement Bond Strength to Zirconia: An In Vitro Study

open access: yesCeramics
This in vitro study investigated whether piranha solution treatment, applied alone or following sandblasting, enhances the shear bond strength of resin cement to zirconia. Fifty zirconia specimens were assigned to five groups: no treatment, sandblasting (
Apichai Maneenacarith   +5 more
doaj   +1 more source

The ultimate defense against piranhas [PDF]

open access: yesJournal of Experimental Biology, 2021
![Graphic][1] Picture the arch-nemesis of a fearsome piranha. What comes to mind? A giant, ferocious fish with teeth even more menacing than those of piranhas? A spiny, turtle-like fish that is as hard as a rock? Maybe something like an electric eel that could fight teeth with electricity?
openaire   +1 more source

Dual-Surface Modification of AlGaN/GaN HEMTs Using TMAH and Piranha Solutions for Enhancing Current and 1/f-Noise Characteristics

open access: yesIEEE Journal of the Electron Devices Society, 2018
We demonstrated dual-surface modification of GaN/AlGaN/GaN high-electron mobility transistors using tetramethylammonium hydroxide (TMAH) and piranha solutions prior to gate metallization.
M. Siva Pratap Reddy   +3 more
doaj   +1 more source

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