Results 31 to 40 of about 506,483 (177)

Conservation strategies for endangered arable plant Euphorbia gaditana

open access: yesConservation Science and Practice, 2022
Fragmentation and habitat loss are considered among the most important threats to biodiversity. More precisely, transformation of natural habitats into farmlands has been identified as one of the primary causes of plant species extinction.
Sonia G. Rabasa   +4 more
doaj   +1 more source

La Evolución del Arbitraje en Colombia [PDF]

open access: yes, 2021
En los últimos años el arbitraje nacional e internacional en Colombia, han tenido avances representativos en sus procedimientos y disposiciones; en el arbitraje local, la ley 1563 de 2012 derogó al Decreto 2279 de 1989, al Decreto 1818 de 1998, la Ley ...
Silva Rodríguez, Carolina
core  

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

open access: yesEcology 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   +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

open access: yesBMC 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

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

open access: yesEuropean 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   +2 more
doaj   +1 more source

Unraveling the ecological processes modulating the population structure of Escherichia coli in a highly polluted urban stream network

open access: yesScientific Reports, 2021
Escherichia coli dynamics in urban watersheds are affected by a complex balance among external inputs, niche modulation and genetic variability. To explore the ecological processes influencing E.
Martín Saraceno   +6 more
doaj   +1 more source

Integrating whole‐bone and regional analyses to understand human scapular growth

open access: yesThe Anatomical Record, EarlyView.
Abstract This study investigates ontogenetic changes in human scapular morphology using three‐dimensional geometric morphometrics with whole‐bone and region‐specific analyses. The aim is to evaluate whether the scapula follows a regular developmental pattern and whether its functionally distinct components, the scapular spine (SS) and glenoid fossa ...
Azahara Salazar‐Fernández   +3 more
wiley   +1 more source

Origen y evolución de la política española de administración electrónica en el contexto de las políticas nacionales de información [PDF]

open access: yes, 2007
Se presenta un análisis de las políticas de información en España, desde sus primeros orígenes en los años sesenta del siglo XX hasta la actualidad. Se destacan los principales hitos, como: los informes de la UNESCO y la OECD, las referencias incluidas ...
Beltrán Orenes, Pilar   +2 more
core   +1 more source

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

open access: yesUISPP 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   +8 more
doaj   +1 more source

A DNA sequence variation dataset across the understudied Andean poison frog genus Andinobates. [PDF]

open access: yesEcology
Abstract The poison frog family Dendrobatidae has radiated into over 300 species throughout the past 30 million years, occupying the majority of neotropical forest habitats. Species in this group have diversified widely in multiple aspects of their biology such as predator avoidance and parental care strategies, reproductive ecology, chemical ecology ...
Mejía-Vargas D   +18 more
europepmc   +2 more sources

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