Results 81 to 90 of about 280,776 (277)

Comparison of different methodologies for DNA extraction from Aegla longirostri

open access: yesBrazilian Archives of Biology and Technology, 2007
The aim of this study was to compare some DNA extraction methodologies for Aegla longirostri. The protocols were based on the traditional phenol-chloroform DNA extraction methodology and using a commercial kit for DNA extraction. They differed in tissues
João Vitor Trindade Bitencourt   +3 more
doaj   +1 more source

Geometric morphometric analysis in female freshwater crabs of Sarawak (Borneo) permits addressing taxonomy-related problems [PDF]

open access: yesPeerJ, 2019
The taxonomy of freshwater crabs requires a paradigm change in methodological approaches, particularly in investigations that use morphological techniques. The traditional morphometric approach (two-dimensional measurements) tends to be inappropriate for
Jongkar Grinang   +2 more
doaj   +2 more sources

Extraction of Freshwater and Energy from Atmosphere [PDF]

open access: yesarXiv, 2007
Author offers and researches a new, cheap method for the extraction of freshwater from the Earth atmosphere. The suggected method is fundamentally dictinct from all existing methods that extract freshwater from air. All other industrial methods extract water from a saline water source (in most cases from seawater).
arxiv  

The effects of magnetic field, age, and intrinsic luminosity on Crab-like pulsar wind nebulae [PDF]

open access: yes, 2013
We investigate the time-dependent behavior of Crab-like pulsar wind nebulae (PWNe) generating a set of models using 4 different initial spin-down luminosities ($L_0 =\{1,0.1,0.01,0.001\} \times L_{0, {\rm Crab}}$), 8 values of magnetic fraction ($\eta =$ 0.001, 0.01, 0.03, 0.1, 0.5, 0.9, 0.99, and 0.999, i.e., from fully particle dominated to fully ...
arxiv   +1 more source

The application of unoccupied aerial systems (UAS) for monitoring intertidal oyster density and abundance

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
This study showcases the use of unoccupied aerial systems (UAS), ground truthing and cluster sampling for high‐resolution geospatial monitoring of the eastern oyster in Apalachicola Bay, Florida. We utilized structure‐from‐motion techniques to reconstruct oyster clusters from UAS imagery.
Jenny Bueno   +3 more
wiley   +1 more source

First record of Grapsus grapsus (Linnaeus, 1758) (Brachyura: Decapoda: Grapsidae) in freshwater habitat

open access: yesNauplius, 2017
The sally lightfoot crab, Grapsus grapsus (Linnaeus, 1758), has been recorded from the oceanic islands off Brazil, as well as from the Caribbean, in coastal rocky shores in the Eastern Pacific, and in Galapagos.
Tammy Iwasa Arai   +2 more
doaj   +1 more source

Life history traits and patterns of sexual dimorphism in the freshwater crab Potamon ibericum (Bieberstein, 1809) (Decapoda: Brachyura: Potamidae) from the western Alborz Mountains, Iran

open access: yes, 2017
The assessment of life history traits can help to better understand the population dynamics of the respective species. We present some life history traits of the freshwater crab Potamon ibericum (Bieberstein, 1809) from the western Alborz Mountains, Iran.
Elahe Parvizi   +3 more
semanticscholar   +1 more source

More than fish: diet composition of fishing cats Prionailurus viverrinus in human‐dominated landscape

open access: yesWildlife Biology, EarlyView.
The fishing cat Prionailurus viverrinus is a medium‐sized wetland specialist felid threatened primarily by habitat loss, human–wildlife conflict, and road mortality. Limited information is available on their life history in human‐modified environments.
Rama Mishra   +11 more
wiley   +1 more source

I. Inverse Compton origin of pulsar γ-ray emission. II. Reconnection model of Crab flares [PDF]

open access: yes, 2013
I. There is growing evidence that pulsars' high energy emission is generated via Inverse Compton mechanism. II. The particles producing Crab flares, and possibly most of the Crab Nebula's high energy emission, are accelerated via reconnection events, and not at shock via Fermi mechanisms.
arxiv   +1 more source

Food Allergy in Children in China

open access: yesClinical &Experimental Allergy, EarlyView.
This review highlights significant regional variations in food allergy prevalence across China, with higher rates in economically developed coastal areas. Despite this growing burden, challenges such as limited diagnostic tools, a shortage of allergists and inadequate access to epinephrine autoinjectors hinder effective management of food allergies ...
Agnes Sze‐Yin Leung   +3 more
wiley   +1 more source

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