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Showing 1 to 18 of 18 for “"Melting Experiments"”.
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Origin of the Lunar Ultramafic Glasses Constrained by Experiments and Models
… of the lunar interior, phase equilibrium experiments are carried out on two synthetic compositions which represent hybridized, bulk source compositions of (1) high-titanium and (2) very low-titanium/high-aluminum primary magmas. The compositions are designed to produce liquids …
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Partial Melting on FeO-Rich Asteroids: Insights to the First Stage of Planetary Differentiation
The melting of planetesimals was a widespread geologic phenomenon taking place in the early inner solar system. Petrologic and geochemical evidence shows that this melting frequently resulted in full differentiation of planetary bodies into a core, mantle, and crust. The extent of this early …
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Late Cenozoic basalts from the Basin-Range province, western United States
… by high heat flow and a thin crust. Recent melting experiments on peridotites and basalts and measurements of heat flow allow limits to be placed on the depth of origin of Basin-Range alkali-olivine basalt magmas. It is proposed that these lavas are produced by partial melting (less than …
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Igneous processes of the early solar system
… and mineral chemistry that are used to guide experiments and models of ureilite petrogenesis. Chapter 2 details and applies the experimental results to describe ureilite petrogenesis as the result of progressive heating of a primitive carbon-rich body. The experiments place temperature and …
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PNA-Ligand Bioconjugates as Potential Building Blocks for Sequence-Specific, Metal-Mediated DNA-/RNA-Cleavage
… DNA hybridization behaviour was examined by UV melting experiments, revealing the intercalating effect of a terminal terpyridine ligand. A new criterion for the significance of PNA DNA melting curves was introduced. The influence of the replacement of one internal PNA monomer with two …
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Synthesis of cyclometalated gold (III) complexesfunctionalized by alkynyl derivatives. Study of the interaction with DNA secondary structures.
… such as circular dichroism (CD), FRET melting experiments, FRET titration and UV difference spectrum, we have observed that a selection of the studied gold complexes may exert interaction with certain DNA secondary structure in physiological media. Chapter 3 reports the attempts to …
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Goldnanopartikel als Sensoren und Aktuatoren für photothermische Reaktionen
… the photothermal temperature increase in DNA melting experiments. Also, first evidence was found that the photothermal temperature increase was a function of the goldnanoparticle network size. Further, using horse radish peroxidase functionalized gold nanoparticles an enzymatic oxidation …
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Geophysical and petrological constraints on ocean plate dynamics
… 2 and 3, I present the results from partial melting experiments of mantle peridotite that were conducted in order to examine the mantle melting point, or solidus, beneath a mid-ocean ridge. Chapter 2 determines the peridotite solidus at a single pressure of 1.5 GPa and concludes that the …
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"fine-tuning" of ribosomal structure and functions by pseudouridylation and rna-protein interactions
… This hypothesis is supported by both UV-melting experiments, where pseudouridylation significantly stabilized H69 stem duplex folding, while destabilize the loop conformation. In addition, NMR also supports this hypothesis. The NMR structure of H69UUU shows that the U1915, A1916, and …
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Geophysical and petrological constraints on ocean plate dynamics
… 2 and 3, I present the results from partial melting experiments of mantle peridotite that were conducted in order to examine the mantle melting point, or solidus, beneath a mid-ocean ridge. Chapter 2 determines the peridotite solidus at a single pressure of 1.5 GPa and concludes that the …
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Synthesis of triplex-forming oligonucleotide conjugates of the anticancer drug temodal
… using phosphoramidite methodology. Thermal melting experiments showed that the 2-O-allyl and 2-O-benzyl groups caused marked destabilisation of the triple helices studied, in contrast to hexose-DNA duplexes, where aralkyl substituents caused significant stabilisation of duplexes. TFOs …
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Petrology and geochemistry of high degree mantle melts
… Mountainland, South Africa. Chapter 1 presents experiments on a Barberton komatiite composition under anhydrous and H20 saturated conditions. A comparison of the compositions of augite in the experiments with augite in the samples indicates that at least 4.5 wt.% H20 was present in the komatiite …
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Laser-assisted single-molecule refolding
… between single-molecule and bulk DNA duplex melting experiments. </p> <p>HIV 1 DIS RNAs form a kissing complex in the loop region and proceed to the extended duplex structure with the help of enzymes or other cofactors in the later stage of viral replication. The kissing complex itself is …
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Subsurface modification in Si induced by nanosecond laser irradiation
… created subsurface in Si wafers due to melting induced by nanosecond pulsed laser irradiation. The wafer dicing technique uses rows of closely spaced modifications that can preferentially guide crack propagation over the natural cleavage planes when the sample is cleaved. The …
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Subsurface modification in Si induced by nanosecond laser irradiation
… created subsurface in Si wafers due to melting induced by nanosecond pulsed laser irradiation. The wafer dicing technique uses rows of closely spaced modifications that can preferentially guide crack propagation over the natural cleavage planes when the sample is cleaved. The …
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Targeting Alternative Conformational States of the HIV-1 Rev Response Element Stem IIB using Small Molecules
… binding affinity to the Rev-ARM using optical melting experiments, NMR spectroscopy, and in vitro binding assays. Our results indicate that if present in stem IIB, m6A is unlikely to substantially alter the conformational properties of the RNA. </p><p>Next, to confirm the RRE ESs ensemble …
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Crystallization and Melting Behavior of Linear Polyethylene and Ethylene/Styrene Copolymers and Chain Length Dependence of Spherulitic Growth Rate for Poly(Ethylene Oxide) Fractions
The crystallization and melting behavior of linear polyethylene and of a series of random ethylene/styrene copolymers was investigated using a combination of classical and temperature modulated differential scanning calorimetry. In the case of linear polyethylene and low styrene content copolymers, …
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Multivalent Programmable Interactions Between Lipid Vesicles: Towards Responsive Soft Materials
… regimes below, above and around the gel/melting points, as well as differing length scales of the dynamics, which differ between quenching and melting experiments. From the statics and dynamics, we see evidence for multiple phenomena, including coarsening as well as ballistic events …