Results 121 to 130 of about 1,758,714 (353)

Exposed weapons: A revised reconstruction of the facial anatomy and life appearance of the saber‐toothed cat Megantereon (Felidae, Machairodontinae)

open access: yesThe Anatomical Record, EarlyView.
Abstract Megantereon was a widespread saber‐toothed felid from the Pliocene and Pleistocene of the Old World and North America, but its rarity in the fossil record makes it complicated to restore its life appearance. Lack of complete specimens makes it necessary to combine information from fossils of different individuals to reconstruct their facial ...
Mauricio Antón   +4 more
wiley   +1 more source

Kajian Awal Prospek Bahan Galian Monasit Mengandung U dan Elemen Asosiasinya di Semelangan Ketapang, Kalimantan Barat

open access: yesEksplorium: Buletin Pusat Pengembangan Bahan Galian Nuklir, 2011
Semelangan study area included in the regional geology Ketapang. Geochemical analysis of sediment samples that represented showed that the region Semelangan Ketapang, District Nanga Tayap, Ketapang identified monazite deposite containing radioactive ...
Lilik Subiantoro   +2 more
doaj   +1 more source

The Founders of Geology [PDF]

open access: yesNature, 1897
THE truths of science cannot be more impressively taught than by a sketch of the process by which the knowledge has been arrived at, and in no way can that history be more forcibly conveyed than in the biographies of those pioneers who first interpreted the phenomena for us.
openaire   +2 more sources

Small fish, large variation: Morphological diversity of Weberian apparatus in Noturus catfishes and ecological implications

open access: yesThe Anatomical Record, EarlyView.
Abstract The Weberian apparatus is a hearing specialization unique to the otophysan fishes, and an unexpected degree of morphological variation exists in species of the Noturus catfishes. Our aim in this study is to investigate relationships between morphological variations and ecology that may drive this variation.
J. C. Hoeflich, Juan Liu
wiley   +1 more source

The Performance of Altimeter Waveform Retrackers at Lake Baikal

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2013
At each of five fixed locations along the ground tracks of JASON-1 and ENVISAT, a repeat-track analysis of 1-Hz sea surface height (SSH) data has been conducted to assess the performance of waveform retrackers over Lake Baikal in Siberia, Russia.
Yuchan Yi   +5 more
doaj   +1 more source

Earth science education in South Australia: Evolving with the resources boom [PDF]

open access: yes, 2007
Copyright © 2007 AusIMM The document attached has been archived with permission from the publisher.Andreas Schmidt Mumm MAusIMM and Alan Collins, Geology and Geophysics, School of Earth and Environmental Sciences, The University of Adelaidehttp://direct ...
Collins, A., Schmidt Mumm, A.
core   +1 more source

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

open access: yesThe Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

Numerical Analysis of a Short-Term Tracer Experiment in Fractured Sandstone

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2007
A short-term, pulse injection tracer experiment conducted in fractured quartzitic sandstone at Kukuan, Taiwan was analyzed. Tracer transport at the test site was dominated by advection but a specific attenuation mechanism leading to breakthrough curve ...
Tai-Sheng Liou
doaj   +1 more source

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