Results 101 to 110 of about 352,106 (206)

A COI DNA barcoding survey of Pratylenchus species in the Great Plains Region of North America

open access: yesJournal of Nematology, 2019
Pratylenchus species are among the most common plant parasitic nematodes in the Great Plains Region of North America. Our goal was to survey Pratylenchus species diversity across the Great Plains region using a mitochondrial COI DNA barcode.
Ozbayrak Mehmet   +7 more
doaj   +1 more source

An Origin of CMR: Competing Phases and Disorder-Induced Insulator-to-Metal Transition in Manganites

open access: yes, 2004
We theoretically explore the mechanism of the colossal magnetoresistance in manganese oxides by explicitly taking into account the phase competition between the double-exchange ferromagnetism and the charge-ordered insulator.
71   +30 more
core   +2 more sources

Electron- and Hole-Doping Effects on $A$-site Ordered NdBaMn$_2$O$_6$

open access: yes, 2011
We have investigated electron- and hole-doping effects on $A$-site ordered perovskite manganite NdBaMn$_2$O$_6$, which has the $A$-type (layered) antiferromagnetic (AFM) ground state. Electrons (holes) are introduced by partial substitution of Ba$^{2+}$ (
Akahoshi D.   +13 more
core   +1 more source

Morphological and molecular characterizations of Pratylenchus coffeae infecting Ming aralia and coffee in Vietnam

open access: yesHelminthologia
Pratylenchus coffeae, belonging to the root-lesion nematode group, is a highly prevalent and destructive plant-parasitic nematode that is able to infest a wide range of host plants.
Nguyen H. D.   +5 more
doaj   +1 more source

Mitochondrial genetic structure of two populations of Uca urugayensis fails to reveal an impact of the Rio de la Plata on gene flow

open access: yesNauplius
The Rio de la Plata. located between Uruguay and Argentina, generates a tremendous freshwater influx from the estuary into the coastal sea. It is thus suggested to constitute a biogeographic barrier for many taxa exhibiting a marine planktonic larval ...
Claudia Laurenzano   +2 more
doaj  

Species Diversity of Tetranemertes (Nemertea: Monostilifera) in Japan

open access: yesSpecies Diversity
The eumonostiliferous hoplonemertean genus Tetranemertes Chernyshev, 1992 consists of 10 named species worldwide, whereas only one has been reported from Japanese waters. In this paper, we i) describe Tetranemertes aurantia sp.
Jamael C. Abato   +2 more
doaj   +1 more source

First Record of Parahubrechtia rayi (Nemertea: Palaeonemertea) from Japan

open access: yesSpecies Diversity
The tubulanid palaeonemertean Parahubrechtia rayi Chernyshev, Polyakova, and Sun, 2022 has been only known from the type locality (4–6 m depth) in the Sea of Japan, Peter the Great Bay, Russia.
Hiroshi Kajihara   +4 more
doaj   +1 more source

Comparative Multi-Marker Environmental DNA Metabarcoding of Marine Metazoan Communities: Water vs. Sediment. [PDF]

open access: yesMol Ecol Resour
Tagliabue A   +8 more
europepmc   +1 more source

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