Results 31 to 40 of about 32,328 (200)

Hubble Space Telescope NICMOS Observations of T Dwarfs: Brown Dwarf Multiplicity and New Probes of the L/T Transition [PDF]

, 2006
We present the results of a Hubble Space Telescope NICMOS imaging survey of 22 T-type field brown dwarfs. Five are resolved as binary systems with angular separations of 0"05-0"35, and companionship is established on the basis of component F110W-F170M ...
Adam Burrows, Adam J. Burgasser, Burgasser A. J., Delfosse X., Duquennoy A., I. Neill Reid, J. Davy Kirkpatrick, James Liebert, Kelle L. Cruz, Maxted P. F. L., Michael E. Brown, Potter D., Sandy K. Leggett, Tsuji T.   +13 more
core   +4 more sources

Comparative functional morphological study of the tarsal joint mobility in artiodactyls and perissodactyls in light of astragalar morphological differences

Journal of Anatomy, EarlyView.
This study investigated how variations in the shape of the astragalus affect tarsal joint behavior, using CT scans. In artiodactyls with a double‐pulley astragalus, the calcaneus shifted plantarly during plantarflexion. This suggests the movement increases hindlimb functional length and contributes to enhanced running speed.
Sei‐ichiro Takeda, Yoichi Masuda, Truong Son Nguyen, Hideki Endo   +3 more
wiley   +1 more source

Numerical investigation of novel microwave applicators based on zero-order mode resonance for hyperthermia treatment of cancer [PDF]

, 2016
This paper characterizes three novel microwave applicators based on zero-order mode resonators for use in hyperthermia treatment of cancer. The radiation patterns are studied with numerical simulations in muscle tissue-equivalent model at 434 MHz.
Rodrigues, Dario B., Stauffer, Paul R., Vrba, David, Vrba, Jan   +3 more
core   +1 more source

Contamination of short GRBs by giant magnetar flares: significance of downwards revision in distance to SGR 1806-20 [PDF]

, 2009
We highlight how the downward revision in the distance to the star cluster associated with SGR1806-20 by Bibby et al. reconciles the apparent low contamination of BATSE short GRBs by intense flares from extragalactic magnetars without recourse to ...
Bibby, Brandner, Cameron, Clark, Clark, Clark, Corbel, Crowther, Crowther, Davies, Davies, Eikenberry, Figer, Figer, Figer, Gaensler, Hanson, Heger, Hurley, J. Simon Clark, James P. Furness, Joanne L. Bibby, Lazzati, Lejeune, Levesque, McClure-Griffiths, Mengel, Meynet, Meynet, Meynet, Muno, Nakar, Ofek, Paul A. Crowther, Popov, Reid, Searle, Tanvir, Vrba, Vrba   +39 more
core   +3 more sources

Enzymatic strategies for phosphorus utilization in periphyton: A study of alkaline phosphatase kinetics in post‐mining lakes

Journal of Phycology, EarlyView.
Abstract Alkaline phosphatase (AP) plays an important role in phosphorus (P) cycling in aquatic ecosystems, particularly under nutrient limitation. In post‐mining lakes of Czechia, periphyton forms extensive mats despite chronic P deficiency, suggesting dissolved organic P (DOP) may serve as a key P source.
Eliška Konopáčová, Jiří Nedoma, Petr Čapek, Kateřina Čapková, Tomáš Bešta, Klára Řeháková   +5 more
wiley   +1 more source

Macroevolutionary processes in turtles (Testudines): a view from biomic specialization and historical climatic changes

Frontiers in Ecology and Evolution
The resource-use hypothesis proposed by Elisabeth S. Vrba suggests that lineages display varying tendencies toward generalism or specialization in biome occupancy, with a tendency towards the accumulation of specialists due to their higher rate of ...
Juan S. Thomas, Sara Gamboa, Manuel Hernández Fernández, Manuel Hernández Fernández, Oscar Murillo, Jonathan S. Pelegrin   +5 more
doaj   +1 more source

Identifying nearby field T dwarfs in the UKIDSS Galactic Clusters Survey [PDF]

, 2008
‘The definitive version is available at www3.interscience.wiley.com '. Copyright Royal Astronomical Society. DOI: 10.1111/j.1365-2966.2008.14384.xWe present the discovery of two new late-T dwarfs identified in the UKIRT Infrared Deep Sky Survey (UKIDSS ...
Allard, B. Burningham, Baraffe, Basri, Bihain, Bouy, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burningham, Caballero, Caballero, Casali, Casewell, Close, Cutri, D. J. Pinfield, Deacon, Dye, Geballe, Genzel, Golimowski, Hambly, Hawley, Hewett, Hodapp, Jameson, Jameson, Kendall, Kirkpatrick, Kirkpatrick, Lawrence, Leggett, Liu, Lodieu, Lodieu, Lodieu, Lodieu, Lodieu, Marley, Martín, Martín, N. C. Hambly, N. Lodieu, Nakajima, Pinfield, Pinsonneault, Rebolo, Reid, Robichon, Salpeter, Strauss, Tinney, Tokunaga, Tsuji, Tsvetanov, Vrba, Warren, Warren, Zapatero Osorio, Zapatero Osorio, Zapatero Osorio   +66 more
core   +2 more sources

New partial skeleton of Homo habilis from the upper Burgi Member, Koobi Fora Formation, Ileret, Kenya

The Anatomical Record, Volume 309, Issue 3, Page 485-545, March 2026.
Abstract KNM‐ER 64061 is a partial skeleton from the upper Burgi Member of the Koobi Fora Formation (2.02–2.06 Ma) associated taphonomically and geochemically with a nearly complete mandibular dentition (KNM‐ER 64060) attributed to Homo habilis.
Frederick E. Grine, Deming Yang, Ashley S. Hammond, William L. Jungers, Michael R. Lague, Carrie S. Mongle, Osbjorn M. Pearson, Meave G. Leakey, Louise N. Leakey   +8 more
wiley   +1 more source

Chandra astrometry sets a tight upper limit to the proper motion of SGR 1900+14

, 2008
The soft gamma-ray repeater (SGR) SGR 1900+14 lies a few arcminutes outside the edge of the shell supernova remnant (SNR) G42.8+0.6. A physical association between the two systems has been proposed - for this and other SGR-SNR pairs - based on the ...
A. De Luca, De Luca, Durant, Fuchs, Gaensler, Gaensler, Hurley, Hurley, Hurley, K. Hurley, Kaplan, Kouveliotou, Lorimer, Marsden, Mereghetti, Motch, Muno, P. A. Caraveo, P. Esposito, Skrutskie, Thompson, Thompson, Thompson, Vrba, Woods   +24 more
core   +1 more source

Bipedalism or bipedalisms: The os coxae of StW 573

Journal of Anatomy, Volume 248, Issue 2, Page 163-183, February 2026.
There has been a long debate about the possibility of multiple contemporaneous species of Australopithecus in both eastern and southern Africa, potentially exhibiting different forms of bipedal locomotion. Here, we describe the previously unreported morphology of the os coxae in the 3.67 Ma Australopithecus prometheus StW 573 from Sterkfontein Member 2
Robin Crompton, Sarah Elton, Jason Heaton, Travis Pickering, Kristian Carlson, Tea Jashashvili, Amelie Beaudet, Laurent Bruxelles, Kathleen Kuman, Susannah K. Thorpe, Eishi Hirasaki, Christopher Scott, William Sellers, Todd Pataky, Ronald Clarke, Juliet McClymont   +15 more
wiley   +1 more source