نتایج جستجو برای: all apparently began ca 5 2 ma
تعداد نتایج: 4519419 فیلتر نتایج به سال:
Cardiac muscle fibers in rats at 1 and 5 days after birth showed little evidence of M-bands. An ultrastructural analysis of myofibrils failed to demonstrate dense M-band material in longitudinal sections or M-bridges in transverse sections of sarcomeres. M-bands began to increase in number after 5 days of postnatal life and were present in 60% of all sarcomeres at 11 days of age. Polypeptides w...
Magmatic and tectonic processes can transport large volumes of magma generated in the deep crust as discrete pulses to shallower crustal depths, resulting incremental construction large, composite batholiths over thousands tens millions years. The Silurian Early Devonian Donegal batholith Ireland is a classic example which regional geological syntheses lithogeochemical data show that emplacemen...
OBJECTIVES To evaluate the effects of copolymer of acrylic acid and maleic acid (Poly[AA-co-MA]) and calcium hypochlorite (Ca(OCl)2) on root canal dentin using scanning electron microscope (SEM). MATERIALS AND METHODS Twenty-four single-rooted teeth were instrumented and the apical and coronal thirds of each root were removed, leaving the 5 mm middle thirds, which were then separated into two...
The persistent debate over the timing of initial Arabia–Eurasia collision has eluded consensus for decades, with most estimates ranging widely from ~50 to 10 Ma along both Anatolian and Zagros segments orogen. Here, we independently evaluate location using a quantitative plate tectonic reconstruction that is first include entire Arabian microcontinent regions north in eastern Anatolia, northwes...
1 Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6367, USA 2 Department of Mathematics, University of North Carolina, Chapel Hill, NC 27599, USA 3 Department of Mathematics, University of California, Berkeley, CA 94720, USA 4 HRL Laboratories, 3011 Malibu Canyon Road, Malibu, CA 90265, USA 5 Division of Engineering and Applied Sciences, Harvard Uni...
The Neogene eolian deposits in the Chinese Loess Plateau (CLP) are one of the most useful continental deposits for understanding climatic changes. To decipher Late Neogene paleoclimatic changes in the CLP, we present a terrestrial mollusk record spanning the time interval between 7.1 and 3.5 Ma from the western CLP. The results indicate four stages of paleoclimatic evolution: From 7.1 to 6.2 Ma...
The Anopheles genus is a member of the Culicidae family and consists of approximately 460 recognized species. The genus is composed of 7 subgenera with diverse geographical distributions. Despite its huge medical importance, a consensus has not been reached on the phylogenetic relationships among Anopheles subgenera. We assembled a comprehensive dataset comprising the COI, COII and 5.8S rRNA ge...
The South Mountain Batholith (SMB; Nova Scotia, Canada) is the largest composite batholith exposed in Appalachians and lies entirely within most outboard Meguma terrane. In situ CA–TIMS U–Pb dating isotopes (Lu–Hf, O) geochemistry for zircon from all phases of SMB constrain its source as well evolution. CA–ID–TIMS yields emplacement (autocryst) ages, indicating a transition granodiorite (378.7 ...
The purpose of the present work was to study the possible role of the epithelial Ca(2+) channel (ECaC) in the Ca(2+) uptake mechanism in developing zebrafish (Danio rerio). With rapid amplification of cDNA ends, full-length cDNA encoding the ECaC of zebrafish (zECaC) was cloned and sequenced. The cloned zECaC was 2,578 bp in length and encoded a protein of 709 amino acids that showed up to 73% ...
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