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Creator | Title | Description | Subject | Date |
| 26 |
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Gondolo, Paolo | AGAPE: a search for dark matter in M31 by microlensing effects on unresolved stars | M 31 is a very tempting target for a microlensing search of compact objects in galactic haloes. It is the nearest large galaxy, it probably has its own dark halo, and its tilted position with respect to the line of sight provides an unmistakable signature of microlensing. However most stars of M 31... | M31; AGAPE; Pixel method; Galaxy; Halo; Cosmology; Gravitational lensing | 1997 |
| 27 |
 |
Gondolo, Paolo | AGAPE: andromeda gravitational amplification pixel experiment | The aim of the AGAPE (Andromeda Gravitational Ampli_x000C_cation Pixel Experiment), experiment which has been _x000C_rst proposed in June 1992 is to examine the distribution of massive astrophysical compact halo objects ((MACHO's) which possibly are in the galactic haloes and which could account for... | AGAPE; Andromeda Gravitational Amplification Pixel Experiment; Microlensing; MACHO; Massive compact halo objects | 1997 |
| 28 |
 |
Gondolo, Paolo | AGAPEROS: searching for microlensing in the LMC with the pixel method. I. Data treatment and pixel light curves production | Recent surveys monitoring millions of light curves of resolved stars in the LMC have discovered several microlensing events. Unresolved stars could however signi _x000C_cantly contribute to the microlensing rate towards the LMC. Monitoring pixels, as opposed to individual stars, should be able to ... | Data analysis techniques; Halo; Galaxies; Gravitational lensing; Pixel method; Large Magellanic Cloud; LMC | 1999 |
| 29 |
 |
Beckerle, Mary C. | ALP-enigma protein ALP-1 functions in actin filament organization to promote muscle structural integrity in Caenorhabditis elegans | Mutations that affect the Z-disk-associated ALP-Enigma proteins have been linked to human muscular and cardiac diseases. Despite their clear physiological significance for human health, the mechanism of action of ALP-Enigma proteins is largely unknown. In Caenorhabditis elegans, the ALP-Enigma prot... | Actin; Caenorhabditis elegans; Contractility; alp-1 mutants; Z-disks; Kettin | 2009 |
| 30 |
 |
Hughes, Kelly T. | ATPase-Independent Type-III Protein Secretion in Salmonella enterica | Type-III protein secretion systems are utilized by gram-negative pathogens to secrete building blocks of the bacterial flagellum, virulence effectors from the cytoplasm into host cells, and structural subunits of the needle complex. The flagellar type-III secretion apparatus utilizes both the energy... | | 2014-01-01 |
| 31 |
 |
Ehleringer, James R. ; Cerling, Thure E. | Aberrant water homeostasis detected by stable isotope analysis | While isotopes are frequently used as tracers in investigations of disease physiology (i.e., 14C labeled glucose), few studies have examined the impact that disease, and disease-related alterations in metabolism, may have on stable isotope ratios at natural abundance levels. The isotopic composition... | | 2010-07-21 |
| 32 |
 |
Gondolo, Paolo | Aberration features in directional dark matter detection | The motion of the Earth around the Sun causes an annual change in the mag-nitude and direction of the arrival velocity of dark matter particles on Earth, in a way analogous to aberration of stellar light. In directional detectors, aberration of weakly interacting massive particles (WIMPs) modulates ... | | 2012-01-01 |
| 33 |
 |
Wu, Yong-Shi | Absence of (1,0) supersymmetry anomaly in world-sheet gauge theories: a purely cohomological proof | A purely cohomological proof is given for the absence of the (1,0) supersymmetry anomaly in gauge theories on a world sheet. In particular, it is shown that generalized cohomological approaches to anomalies in supersymmetric gauge theory, either formulated in whole superconnection space or only in t... | World sheet; String theory; Superfields; Superspace | 1989-01 |
| 34 |
 |
Capecchi, Mario R. | Absence of radius and ulna in mice lacking hoxa-11 and hoxd-11. | Mice with targeted disruptions in Hox genes have been generated to evaluate the role of the Hox complex in determining the mammalian body plan. This complex of 38 genes encodes transcription factors that specify regional information along the embryonic axes. Early in vertebrate evolution an ancestra... | Alleles; Animals; Bone and Bones; Carpal Bones | 2003-09-02 |
| 35 |
 |
Symko, Orest George | Absorption at radio frequencies in superconducting Y1Ba2Cu3Oy | The large magnetic-field-dependent ac absorption in superconducting Y1Ba2Cu3Oy ceramics and powders decreases slowly with increasing frequency in the range 2-16 MHz. The magnetic-field-dependent ac absorption is observed below Tc in superconducting Y1Ba2Cu3Oy ceramics, powders and twinned crystals ... | Copper-octahedral oxygen perovskites; Superconducting Y1Ba 2Cu3Oy; ac absorption | 1989 |
| 36 |
 |
Vardeny, Zeev Valentine | Absorption studies of charged excitations in α-sexithiophene | We present photoexcitation studies of vacuum deposited neutral films of α,ω-substituted sexithiophene (α-6T) using photoinduced absorption (PA) and PAdetected magnetic resonance spectroscopy (PADMR). We find evidence for photoinduced polarons having spin 1/2, with two absorption bands at 0.80... | alpha- sexithiophene; Charged excitations; Photoexcitation; Photoinduced absorption | 1996 |
| 37 |
 |
Vardeny, Zeev Valentine | Absorption-detected magnetic-resonance studies of photoexcitations in conjugated-polymer/C60 composites | Photoexcitations in poly[2-methoxy-5-(2'-ethyl-hexyloxy -p-phenylene vinylene] (MEH-PPV) and composites of MEH-PPV and C60 (MEH-PPV/C60) were studied by photoinduced absorption and absorptiondetected magnetic-resonance spectroscopies. We report direct evidence that the prominent triplet photoexci... | Photoexcitations; Conjugated-polymer/C60 composites; Triplet photoexcitations | 1996-02 |
| 38 |
 |
Mattis, Daniel C. | Accuracy of bosonization for localized interactions | Bosonization is commonly used to calculate the ground-state energy and the dynamics of simple model nonmagnetic impurities in metals. We analyze the accuracy of this procedure in the calculation of the ground-state energy of a simple, solvable, model. | Fermions; Electrons; Magnetic | 2000 |
| 39 |
 |
Symko, Orest George | Acoustic approach to thermal management: miniature thermoacoustic engines | An acoustic approach to thermal management in electronics can be efficient and it can be directly interfaced with electronic devices. It is based on two types of thermoacoustic heat engines, which are being developed for microcircuit applications. One type of device, the prime mover, converts heat t... | Thermoacoustic engines; Thermal management | 2006 |
| 40 |
 |
Armentrout, Peter B. | Activation of methane by gold cations: guided ion beam and theoretical studies | The potential energy surface for activation of methane by the third-row transition metal cation, Au+, is studied experimentally by examining the kinetic energy dependence of this reaction using guided ion beam tandem mass spectrometry. A flow tube ion source produces Au+ primarily in its 1S0 (5d10) ... | | 2006 |
| 41 |
 |
Armentrout, Peter B. | Activation of methane by size-elected iron cluster cations, Fen+ (n=2-15): cluster-CHx (x=0-3) bond energies and reaction mechanisms | The kinetic energy dependences of the reactions of Fen + (n=2 - 15) with CD4 are studied in a guided ion beam tandem mass spectrometer over the energy range of 0-10 eV. All reactions exhibit thresholds and two main products, FenD+ and FenCD2+, are formed. | Metal clusters; Iron ions; Bond energies; Dehydrogenation; Endothermic reactions; Transition metal ions | 2001 |
| 42 |
 |
Beckerle, Mary C. | Activation-dependent redistribution of the adhesion plaque protein, talin, in intact human platelets | Talin is a high molecular weight protein localized at adhesion plaques in fibroblasts. It binds vinculin and integrin and appears to participate in generating a transmembrane connection between the extracellular matrix and the cytoskeleton. | Talin | 1989 |
| 43 |
 |
Shapiro, Michael D. | Adaptive evolution of pelvic reduction in sticklebacks by recurrent deletion of a Pitx1 enhancer | The molecular mechanisms underlying major phenotypic changes that have evolved repeatedly in nature are generally unknown. Pelvic loss in different natural populations of threespine stickleback fish has occurred by regulatory mutations deleting a tissue-specific enhancer of the Pituitary homeobox t... | Adaptive evolution; Pelvic reduction; Pituitary homeobox transcription factor 1; Pitx1; Gasterosteus aculeatus | 2010-01-14 |
| 44 |
 |
Beckerle, Mary C. | Adhesion plaque protein, talin, is phosphorylated in vivo in chicken embryo fibroblasts exposed to the tumor-promoting phorbol ester | Talin is a high molecular weight phosphoprotein that is localized at adhesion plaques. We have found that talin phosphorylation increases 3.0-fold upon exposure of chicken embryo fibroblasts to the tumor-promoting phorbol ester, phorbol 12-myristate 13-acetate. | Talin; Vinculin; Chicken embryo fibroblasts | 1990 |
| 45 |
 |
Symko, Orest George | Adiabatic compressional cooling of He3 | By adiabatic compression of a two-phase mixture of liquid and solid He3, temperatures below 2.5 mK have been obtained. These are in the range expected for nuclear ordering in solid He3. | He3; Adiabatic compressional cooling | 1969-03 |
| 46 |
 |
Rogachev, Andrey | Admittance spectroscopy study of polymer diodes in small magnetic fields | We performed a systematic study of bipolar and unipolar organic diodes based on the p-conjugated polymer, 2-methoxy-5-(20-ethylhexyloxy) (MEH-PPV), using electronic and magneto-transport measurements with magnetic field in the range 0-180mT and admittance spectroscopy in the frequency range 1 Hz<f<1... | | 2012-01-01 |
| 47 |
 |
Williams, Clayton C. | Advances in experimental technique for quantitative two dimensional dopant profiling by scanning capacitance microscopy | Several advances have been made toward the achievement of quantitative two-dimensional dopant and carrier profiling. To improve the dielectric and charge properties of the oxide-silicon interface, a method of low temperature heat treatment has been developed which produces an insulating layer with c... | Doping; Scanning capacitance microscope; SCM | 1999 |
| 48 |
 |
Gondolo, Paolo | AgapeZ1: a large amplification microlensing event or an odd variable star towards the inner bulge of M31 | AgapeZ1 is the brightest and the shortest duration microlensing candidate event found to date in the Agape experiment. It occurred only 4200 from the centre of M31 at RA = 0h42m41:47s and Dec = 41°16'39.1" (J2000). Our photometry shows that the half intensity duration of the event is 5.3 days and ... | AgapeZ1; Galaxy; Halo; Cosmology; Gravitational lensing; M31; Pixel method | 1999 |
| 49 |
 |
Adler, Frederick R. | Aggregation and stability in parasite-host models | This paper generalizes the two-dimensional approximation of models of macroparasites on homogeneous populations developed by Anderson & May (1978), focusing on how the dispersion (the variance to mean ratio) of the equilibrium distribution of parasites on hosts is related to the stability of the equ... | Aggregation; Stability; Host-parasite models | 1992-04 |
| 50 |
 |
Lupton, John Mark | Air-induced fluorescence bursts from single semiconductor nanocrystals | We observe a dramatic enhancement of the fluorescence intensity from single core/shell CdSe/ZnS nanocrystals upon sudden exposure to air from an evacuated surrounding. Both the number of particles contributing to emission increases as well as the average emission intensity from a single particle, le... | CdSe; ZnS; Air-induced; Fluorescence bursts | 2004 |
