Results 91 to 100 of about 68,403 (337)

Die Analyse von Calciumspuren im Gallium mit Hilfe der Isotopenverdünnungsmethoden

open access: yesCHIMIA, 1962
With the help of isotopic dilution method it was possible to follow with great sensibility the comportment of the calcium during the purification processes of metallic gallium. The calcium-45 was added to alkaline solution of gallate. The electrolyse of
P. Lerch, C. Vuilleumier
doaj   +1 more source

Trace Element Estimation – Methods & Clinical Context [PDF]

open access: yes, 2005
Understanding the effects of trace metals on human health is as complex as it is fascinating. As mentioned earlier, the high concentrations may prove toxic, as also, depletion in the concentration of the essential trace elements may cause various ...
Rao Nanjunda, Dr. Ananth
core   +1 more source

SHRIMP ion probe zircon geochronology and Sr and Nd isotope geochemistry for southern Longwood Range and Bluff Peninsula intrusive rocks of Southland, New Zealand [PDF]

open access: yes, 2006
Permian–Jurassic ultramafic to felsic intrusive complexes at Bluff Peninsula and in the southern Longwood Range along the Southland coast represent a series of intraoceanic magmatic arcs with ages spanning a time interval of 110 m.y.
Aronson JL   +15 more
core   +2 more sources

Minimally Invasive Chemical Biopsy Needle with Self‐Wettable Extraction Phase For In Vivo Tissue Sampling During Medical Procedures

open access: yesAdvanced Science, EarlyView.
A new tissue sampling device using an acupuncture needle with bio‐compatible extraction sorbents in the recessed section is developed. The coating material using self‐wettable particles doesn't require solvent activation after sterilization. This device is applied for the anti‐cancer drug concentration monitoring during the in vivo lung perfusion ...
Runshan Will Jiang   +9 more
wiley   +1 more source

Oxygen isotopic ratios in cool R Coronae Borealis stars [PDF]

open access: yes, 2010
We investigate the relationship between R Coronae Borealis (RCB) stars and hydrogen-deficient carbon (HdC) stars by measuring precise 16O/18O ratios for five cool RCB stars.
Alvarez   +17 more
core   +3 more sources

De Novo Design of Specific Heterotrimeric Collagen‐Like Peptides via Genetic Algorithm

open access: yesAdvanced Science, EarlyView.
GRACE is a computational algorithm producing peptide sequences that will reliably fold into composition and registration‐controlled collagen‐like triple helices with user‐specified thermal stability. Additionally, GRACE allows users to specify the inclusion of biologically relevant (or other) sequences to automatically create tailored triple helices ...
Thi H. Bui   +5 more
wiley   +1 more source

Calibration graphs in isotope dilution mass spectrometry

open access: yesAnalytica Chimica Acta, 2015
Isotope-based quantitation is routinely employed in chemical measurements. Whereas most analysts seek for methods with linear theoretical response functions, a unique feature that distinguishes isotope dilution from many other analytical methods is the inherent possibility for a nonlinear theoretical response curve.
Pagliano, Enea   +2 more
openaire   +5 more sources

Weak G-band stars on the H-R Diagram: Clues to the origin of Li anomaly [PDF]

open access: yes, 2011
Weak G-band (WGB) stars are a rare class of cool luminous stars that present a strong depletion in carbon, but also lithium abundance anomalies that have been little explored in the literature since the first discovery of these peculiar objects in the ...
A. Palacios   +53 more
core   +3 more sources

Glucose‐Responsive PAGR1‐Regulated Skeletal Muscle Gene Program Controls Systemic Glucose Homeostasis and Hepatic Metabolism

open access: yesAdvanced Science, EarlyView.
The study reveals that PAXIP1‐associated glutamate‐rich protein 1 (PAGR1), a glucose‐responsive regulator in skeletal muscle, modulates systemic glucose homeostasis and hepatic metabolism. Muscle‐specific PAGR1 deletion enhances insulin signaling, promotes glucose transporter 4 (GLUT4) translocation, and protects against high‐fat‐diet‐induced insulin ...
Chenyun Ding   +19 more
wiley   +1 more source

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