Results 41 to 50 of about 1,575,655 (240)

Fostering urban transformations in Latin America: lessons around the ecological management of an urban stream in coproduction with a social movement (Buenos Aires, Argentina)

Ecology and Society, 2019
Collaborative community-based approaches are proposed as a way to overcome the difficulties exerted by a broad range of social-ecological traps that emerge at the reconfiguration of social-ecological systems onto sustainable paths.
Martin Graziano, Grecia Stefanía. de Groot, Laura Daniela. Pilato, María Laura. Sánchez, Irina Izaguirre, Haydée N. Pizarro   +5 more
doaj   +1 more source

Structural and gene composition variation of the complete mitochondrial genome of Mammillaria huitzilopochtli (Cactaceae, Caryophyllales), revealed by de novo assembly

BMC Genomics, 2023
Background Structural descriptions of complete genomes have elucidated evolutionary processes in angiosperms. In Cactaceae (Caryophyllales), a high structural diversity of the chloroplast genome has been identified within and among genera. In this study,
David Cruz Plancarte, Sofía Solórzano
doaj   +1 more source

Preservation of glycine coordination compounds under a gamma radiation dose representative of natural mars radioactivity

Scientific Reports, 2022
The Martian subsurface is more favorable for organic preservation than its surface because of the shielding effect of rocks from cosmic rays and UV radiation with increasing depth.
Laura J. Bonales, Victoria Muñoz-Iglesias, Olga Prieto-Ballesteros, Eva Mateo-Martí   +3 more
doaj   +1 more source

The significance of cytogenetics for the study of karyotype evolution and taxonomy of water bugs (Heteroptera, Belostomatidae) native to Argentina [PDF]

, 2013
Male meiosis behaviour and heterochromatin characterization of three big water bug species were studied. Belostoma dentatum (Mayr, 1863), B. elongatum Montandon, 1908 and B. gestroi Montandon, 1903 possess 2n = 26 + X1X2Y (male).
Bressa, Maria Jose, Chirino, Monica Gabriela, Papeschi, Alba Graciela   +2 more
core   +2 more sources

Re-examination of "ancient" fossils discovered in the middle of the 20th century. Late Middle Pleistocene hominins from Montmaurin Caves (Southwest of France)

UISPP Journal, 2019
In 1945, the activity of the quarries settled near the village of Montmaurin, 75km south-west from Toulouse in France, led to the discovery of several caves filled by archeological deposits. After the visit done by H. Begouën and the Abbey H.
Amélie Vialet, Benoit Bertrand, Clémentine Champalle, José María Bermúdez de Castro, Marío Modesto Mata, María Martinón Torres, Marina Martínez de Pinillos, Laura Martín Francés, Thomas Colard   +8 more
doaj   +1 more source

Micromamíferos del Pleistoceno Superior del yacimiento de PRERESA en el valle del Manzanares y su contribución a la reconstrucción paleoambiental de la cuenca de Madrid durante el Pleistoceno

Estudios Geologicos, 2011
PRERESA (Getafe, Madrid) es un yacimiento del primer tercio del Pleistoceno Superior, final del MIS 5, del que se han excavado 255 m2, y donde se han recuperado 754 piezas líticas y abundantes restos de micro- y macrovertebrados.
C. Sesé, S. Rubio-Jara, J. Panera, A. Pérez-González   +3 more
doaj   +1 more source

Phenotypic pattern over centric fusion clinal variation in the water-hyacinth grasshopper, Cornops aquaticum (Orthoptera: Acrididae) [PDF]

, 2018
The water-hyacinth grasshopper, Cornops aquaticum, occurs in freshwater environments in the New World between latitudes 23°N and 35°S. At the southernmost margin of this distribution the populations are polymorphic for three centric fusions (Robertsonian
Bownes, Bownes, Capello, Center, Colombo, Dolskiy, Dumas, Endler, Excoffier, Franceschini, Hewitt, Hewitt, John, Lemeunier, Mart, Mesa, Mesa, Oberholzer, PAST, Taffarel, White, Wolff   +21 more
core   +1 more source

Experimental Induction of Friendship Jealousy: Comparing the Effects of Time versus Mental Coordination with an Interloper

Psykhe, 2022
Jealousy is an emotional response to the threat of losing a valued relationship. In this research, we revisit the proposal that jealousy in friendship is an evolved response to the threat of someone else replacing what is unique in this kind of ...
Ana María Fernández, Belén Castro, Pablo Molina, Leda Cosmides, Brandy Burkett   +4 more
doaj   +1 more source

Unfused transverse foramen of the atlas vertebra in the Neandertal lineage fossils

The Anatomical Record, EarlyView.
Abstract In anatomically modern humans, the atlas can display an unfused transverse foramen (UTF) but currently the presence of UTF in the Neandertal lineage is uncertain due to a scarcity of prevalence studies and no exhaustive record of its presence throughout the entire hominin fossil record.
Asier Gómez‐Olivencia, Mikel Arlegi, Juan José Valenzuela‐Fuenzalida, Mathias Orellana‐Donoso, Juan Luis Arsuaga, Juan A. Sanchis‐Gimeno   +5 more
wiley   +1 more source

Karyotype and male meiosis in Spartocera batatas and meiotic behaviour of multiple sex chromosomes in Coreidae (Heteroptera)

European Journal of Entomology, 2006
The Coreidae (Heteroptera) have holokinetic chromosomes and during male meiosis the autosomal bivalents segregate reductionally at anaphase I while the sex chromosomes do so equationally. The modal diploid chromosome number of the family is 2n = 21, with
María José FRANCO, María José BRESSA, Alba GRACIELA PAPESCHI   +2 more
doaj   +1 more source