Results 11 to 20 of about 49,445 (136)

Survival, rarity, and extinction in tropical stony corals. [PDF]

Conserv Biol
Abstract Many reef‐building tropical corals are becoming rare. We considered the meaning of rarity in corals and highlighted taxa that have reached low abundances in the last few decades. The difficulties of quantifying rarity in the marine environment arise from the sheer scale and 3‐dimensional nature of the biome and the inherent challenges therein ...
Wilson B, Edmunds PJ.
europepmc   +2 more sources

Teacher-Student Relationship Quality and Classroom Climate From the Student Perspective: Adaptation of the SPARTS-E in the Spanish Context7. [PDF]

Child Care Health Dev
ABSTRACT Background The quality of the affective bond between teachers and their students is recognised as a key determinant of children's socio‐emotional adjustment, classroom climate and academic engagement. Spain, however, lacks student‐reported measures grounded in attachment theory. This study therefore adapted and validated the Student Perception
Garcia-Rodriguez L, Reparaz C, Iriarte C.   +2 more
europepmc   +2 more sources

Analysis of morphological attributes as a driver of trade in poison dart frogs. [PDF]

Conserv Biol
Abstract The unsustainable use of wildlife is a threat to biodiversity on a global scale, and the insatiable demand is driven by the attributes of the species, their parts, and derivatives. However, not all species are equally valued; certain attributes command a higher price. One example is the exotic pet trade in amphibians and reptiles.
Jaichand P, Roberts DL, Fraser IM.
europepmc   +2 more sources

Exploring gaps, biases, and research priorities in the evidence for reptile conservation actions. [PDF]

Conserv Biol
Abstract With over 21% of reptile species threatened with extinction, there is an urgent need to ensure conservation actions to protect and restore populations are informed by relevant, reliable evidence. We examined the geographic and taxonomic distribution of 707 studies that tested the effects of actions to conserve reptiles synthesized in ...
Speight O, Morgan WH, White TB, Sainsbury KA, Bouskila A, Rotem G, Smith RK, Sutherland WJ, Watson MJ, Christie AP.   +9 more
europepmc   +2 more sources

Effectiveness and treatment moderators of parenting interventions in Finnish perinatal primary care. [PDF]

Infant Ment Health J
Abstract Perinatal parenting interventions may be important for enhancing parenting quality, but previous research has mostly focused on parental sensitivity. Other important outcomes, such as parental self‐efficacy (PSE), have rarely been studied. Research is also contradictory on whether parenting interventions can also enhance maternal mental health
Flykt M, Kilpeläinen M, Kinnunen S, Salonen M, Peltonen K, Isosävi S, Lindblom J.   +6 more
europepmc   +2 more sources

Electromagnetic Counterparts to Black Hole Mergers [PDF]

, 2010
During the final moments of a binary black hole (BH) merger, the gravitational wave (GW) luminosity of the system is greater than the combined electromagnetic output of the entire observable universe.
Schnittman, Jeremy D.
core   +3 more sources

Astrophysics of Super-massive Black Hole Mergers [PDF]

, 2013
We present here an overview of recent work in the subject of astrophysical manifestations of super-massive black hole (SMBH) mergers. This is a field that has been traditionally driven by theoretical work, but in recent years has also generated a great ...
Schnittman, Jeremy D.
core   +3 more sources

Low-frequency gravitational radiation from coalescing massive black hole binaries in hierarchical cosmologies

, 2004
We compute the expected gravitational wave signal from coalescing massive black hole (MBH) binaries at the center of galaxies in a hierarchical structure formation scenario in which seed holes of intermediate mass form far up in the dark halo merger tree.
, A Sesana, Bender P, Cornish N J, F Haardt, Haehnelt M G, Lommen A N, M Volonteri, Magorrian J, P Madau, Phinney E S, Sesana A Haardt F Madau P Volonteri M, Thorne K S   +12 more
core   +3 more sources

Prompt Tidal Disruption of Stars as an Electromagnetic Signature of Supermassive Black Hole Coalescence

, 2010
A precise electromagnetic measurement of the sky coordinates and redshift of a coalescing black hole binary holds the key for using its gravitational wave (GW) signal to constrain cosmological parameters and to test general relativity.
Abraham Loeb, Alexander, Arun, Bahcall, Baker, Bartko, Beloborodov, Blecha, Bode, Bogdanović, Bonning, Callegari, Campanelli, Chen, Cohn, Comerford, Côté, Diener, Donley, Dotti, Escala, Esquej, Evans, Gezari, Gezari, Gezari, Ghez, Goodman, Holz, Ivanov, Kasen, Kocsis, Komossa, Komossa, Komossa, Lippai, Lodato, Loeb, Loeb, Magorrian, Mayer, McWilliams, Merritt, Merritt, Merritt, Merritt, Merritt, Milosavljević, Milosavljević, Nicholas Stone, O'Leary, Oesch, Perets, Pretorius, Rees, Schnittman, Schnittman, Schutz, Sesana, Sesana, Seto, Shields, Shields, Shlosman, Strubbe, Syer, Yu   +66 more
core   +1 more source

The Family Dugesiidae : new records for the Azorean Archipelago [PDF]

, 2007
The freshwater Turbellaria worms are widely distributed and live mainly in lakes, lagoons, ponds and streams. The genus Dugesia of the Family Dugesiidae, differs from another Turbellaria families in some characteristics, namely the possession of ...
Costa, Ana C., Malhâo, Vera, Raposeiro, Pedro   +2 more
core