Results 71 to 80 of about 28,616 (215)

Hitchhikers on an Invader: The Parasitic Leech Myzobdella lugubris and the Epibiotic Barnacle Amphibalanus improvisus on the Atlantic Blue Crab Callinectes sapidus in Southwestern Europe

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
This study documents the first worldwide record of the parasitic leech Myzobdella lugubris and the commensal barnacle Amphibalanus improvisus associated with invasive Atlantic blue crabs (Callinectes sapidus) in southwestern Europe. Molecular analyses confirmed the identity of these Western Atlantic native species, highlighting a complex multi‐level co‐
Gustavo F. de Carvalho‐Souza   +2 more
wiley   +1 more source

Los actuales retos de la cooperación militar y las capacidades de la Unión Europea

open access: yesCuadernos Europeos de Deusto, 2015
La Política Común de Seguridad y Defensa de la Unión Europea está lejos de alcanzar el nivel de desarrollo previsto por el Tratado de Lisboa, en especial en lo relativo a la cooperación militar y las capacidades de defensa.
Francisco José Ruiz González
doaj   +1 more source

Exploring ecohydrology through the lens of local fishers in the Bolivian Amazon

open access: yesEcosphere, Volume 17, Issue 4, April 2026.
Abstract The natural flow regimes of Andean‐Amazon tributaries play a vital role in sustaining their rich biodiversity and productive local fisheries, but ongoing and proposed alteration of river flow regimes by large dams threatens to negatively impact river ecosystems. Despite its importance, our understanding of how hydrologic variability influences
Lina G. Terrazas‐Villarroel   +4 more
wiley   +1 more source

Simulation Based Studies in Software Engineering: A Matter of Validity [PDF]

open access: yesCLEI Electronic Journal, 2015
Despite the possible lack of validity when compared with other science areas, Simulation-Based Studies (SBS) in Software Engineering (SE) have supported the achievement of some results in the field.
Breno Bernard Nicolau de França   +1 more
doaj  

Política europea de Seguridad y Defensa: una aproximación militar

open access: yesArbor: Ciencia, Pensamiento y Cultura, 2008
El cambio de siglo ha confirmado la existencia de nuevos peligros: terrorismo transnacional, armas de destrucción masiva y la debilidad de algunos estados en práctica descomposición.
Félix Sanz Roldán
doaj   +1 more source

Ocean acidification at the crossroads I: Harmonizing unpurified and purified meta‐cresol purple spectrophotometric pHT measurements based on absorbance data

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 4, April 2026.
Abstract Consistent monitoring of seawater spectrophotometric pH on the total hydrogen ion scale (pHT) has been questioned by an evolving method, with changes in parameterization and the purity of the meta‐cresol purple (mCP). Using real seawater samples, we demonstrate that spectrophotometric pHT measurements obtained with unpurified (UNPUR) and ...
Marta Álvarez   +6 more
wiley   +1 more source

Generic limits of the Rhyparini with respect to the genus Termitodius Wasmann, 1894 (Coleoptera: Scarabaeidae: Aphodiinae) [PDF]

open access: yes, 2009
Three distinct tibial types are recognized within the Rhyparini (Scarabaeidae, Aphodiinae). Based on this, generic limits for the species of Termitodius Wasmann are reevaluated, with the Old World members being transferred to Termitodiellus Nakane.
Skelley, Paul E.
core  

The Microbiology and Geochemistry of the Shallow‐Water Hydrothermal Vents of the Gulf of Naples, Italy

open access: yesEnvironmental Microbiology, Volume 28, Issue 4, April 2026.
This study investigated the interplay between fluid geochemistry and microbial diversity in the shallow‐water hydrothermal vents of the gulf of Naples, Italy. We found that hydrothermal fluid chemistry and the geological settings where the vents are hosted play a key role in shaping microbial distribution.
Bernardo Barosa   +18 more
wiley   +1 more source

原发性食管小细胞癌研究进展

open access: yesZhongguo shiyan zhenduanxue, 2015
目前,食管癌是一种常见的恶性肿瘤,组织学分型可分为鳞癌、腺癌等,其中以鳞癌最为常见,约占90%以上,而原发性的食管小细胞癌(PESC)则更为罕见。近年来,随着病理学技术的发展,以及食管癌外科手术切除技术的提高,文献报道的PESC发病率有所上升。由于国内的食管癌整体发病率高于国外,因此,近年来国内所报道的病例要明显多于国外。PESC的镜下、影像学以及临床表现与鳞癌、腺癌相类似,但其生物学特性、组织来源 ...
杨成, 韩振国, 李婷
doaj  

Review of the tribe Melolonthini in the southeastern United States (Coleoptera: Scarabaeidae: Melolonthinae) [PDF]

open access: yes, 2003
This paper reviews the tribe Melolonthini (Scarabaeidae, Melolonthinae) in the southeastern United States, primarily in the states of Mississippi, Alabama, Georgia, and northern Florida.
Skelley, Paul E.
core   +1 more source

Home - About - Disclaimer - Privacy