Results 11 to 20 of about 1,329,284 (283)

Fishes of the Mfimi River in the central Congo basin of the Democratic Republic of Congo. Kasai ecoregion or part of the Cuvette Centrale? [PDF]

open access: yesCheck List, 2021
Despite the cultural and economic importance of fisheries to communities in the region, the Mfimi is one of the least well-documented river systems in the central Congo basin.
Melanie L. J. Stiassny   +4 more
doaj   +3 more sources

Macrotylus henryi, a new species of Pelargonium-feeding Cremnorrhinina from South Africa (Hemiptera, Miridae, Phylinae, Cremnorrhinini) [PDF]

open access: yesZooKeys, 2018
Macrotylus henryi is described as a new species from South Africa. This new taxon is recorded as feeding on species of Pelargonium (Geraniaceae) in the Western Cape.
Ruth Salas, Randall T. Schuh
doaj   +2 more sources

Authentic STEM research, practices of science, and interest development in an informal science education program

open access: yesInternational Journal of STEM Education, 2021
Background Two critical challenges in science education are how to engage students in the practices of science and how to develop and sustain interest. The goal of this study was to examine the extent to which high school youth, the majority of whom are ...
Bobby Habig, Preeti Gupta
doaj   +1 more source

Henryognathus thomasi, a new genus and new species of Arctostaphylos-feeding plant bug from western North America (Miridae, Phylinae, Phylini) [PDF]

open access: yesZooKeys, 2018
Henryognathus, new genus, with the single included new species H. thomasi, is described from western North America. The taxon is recorded as feeding on species of Arctostaphylos (Ericaceae) in California and Arizona.
Randall T. Schuh, Ruth Salas
doaj   +2 more sources

The reopening of the Mexican and Central American Hall, February 25, 1944, The American Museum of Natural History [PDF]

open access: yes, 1944
23 p. 16 pl.on 8 leaves.
American Museum of Natural History.   +1 more
core   +2 more sources

Macroevolutionary bursts and constraints generate a rainbow in a clade of tropical birds

open access: yesBMC Evolutionary Biology, 2020
Background Bird plumage exhibits a diversity of colors that serve functional roles ranging from signaling to camouflage and thermoregulation. However, birds must maintain a balance between evolving colorful signals to attract mates, minimizing ...
Jon T. Merwin   +2 more
doaj   +1 more source

Journalism in Democracy: A Discourse Analysis of Twitter Posts on the Ferrerasgate Scandal

open access: yesMedia and Communication, 2023
This research analyses the discourse on Twitter surrounding the “Ferrerasgate” scandal involving the Spanish journalist Antonio García Ferreras, director and host of the television show Al Rojo Vivo (La Sexta, Spanish TV channel).
Itziar Reguero-Sanz   +2 more
doaj   +1 more source

THE HISTORY OF THE AMERICAN RACE [PDF]

open access: yesAnnals of the New York Academy of Sciences, 1912
n ...
openaire   +2 more sources

AMERICAN CULTURE HISTORY [PDF]

open access: yesAmerican Anthropologist, 1940
AMERICAN CULTURE HISTORY By ROBERT H. LOWIE revolutionary T o ME the most last decade are achievements in American culture his­ tory within the (1) the demonstration of implements contemporaneous with extinct mammals; and (2) the shifting of interest to South America rather than Mexico or Yucatan as the probable site for the development of the higher ...
openaire   +2 more sources

Integrating coalescent species delimitation with analysis of host specificity reveals extensive cryptic diversity despite minimal mitochondrial divergence in the malaria parasite genus Leucocytozoon

open access: yesBMC Evolutionary Biology, 2018
Background Coalescent methods that use multi-locus sequence data are powerful tools for identifying putatively reproductively isolated lineages, though this approach has rarely been used for the study of microbial groups that are likely to harbor many ...
Spencer C. Galen   +3 more
doaj   +1 more source

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