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Detection of X-Ray Emission from the Arches Cluster near the Galactic Center
mass loss winds
2014/12/26
The Arches cluster is an extraordinarily compact massive star cluster with a core radius of about 10'' (~0.4 pc) and consisting of more than 150 O star candidates with initial stellar masses greater t...
Title: Chandra Observations of the Galactic Center and Nearby Edge-on Galaxies
Galactic Center Nearby Edge-on Galaxies
2014/12/26
I review our recent Chandra surveys of the center region of the Milky Way and other nearby edge-on galaxies. Our Galactic center survey provides an unprecedented high-resolution, broad-band X-ray pano...
The Chandra Detection of Galactic Center X-Ray Features G359.89−0.08 and G359.54+0.18
neutron supernova remnants
2014/12/24
We report the detection of two elongated X-ray features, G359.89-0.08 and G359.54+0.18, in the Galactic center (GC) region using the Chandra X-Ray Observatory. G359.89-0.08 is an elongated X-ray featu...
The XMM-Newton/Chandra monitoring campaign of the Galactic center region
Accretion accretion disks
2014/12/24
We present the first results of our X-ray monitoring campaign on a 1.7 square degree region centered on Sgr A* using the satellites XMM-Newton and Chandra. The purpose of this campaign is to monitor t...
Chandra Observations of the Galactic Center: High Energy Processes at Arcsecond Resolution
High Energy Processes Arcsecond Resolution
2014/12/24
About 2 million seconds of Chandra observing time have been devoted to the Galactic Center (GC), including large-scale surveys and deep pointings. These observations have led to the detection of about...
The 2Mass Color-magnitude Diagram of the Center of the Sagittarius Dwarf Galaxy: Photometric Measurements of a Surprisingly High Mean Metallicity
abundances stellar
2014/12/23
We present the Two Micron All Sky Survey (2MASS) (J−K, K) color-magnitude diagram for the region within 1◦ of the center of the Sagittarius dwarf spheroidal galaxy. Using the slope of the ...
A CATALOG OF X-RAY POINT SOURCES FROM TWO MEGASECONDS OF CHANDRA OBSERVATIONS OF THE GALACTIC CENTER
center stars
2014/12/23
We present a catalog of 9017 X-ray sources identified in Chandra observations of a 2°× 08 field around the Galactic center. This enlarges the number of known X-ray sources in the region by a factor of...
HST Pa Survey of the Galactic Center – Searching the missing young stellar populations within the Galactic Center
star formation process
2014/12/20
We present preliminary results of our \hst Pa$\alpha$ survey of the Galactic Center (\gc), which maps the central 0.65$\times$0.25 degrees around Sgr A*. This survey provides us with a more complete i...
Chemists from around the world form new center to reinvent how chemicals are made
around the world new center chemicals are made
2014/12/30
Up until now, chemists who want to design breakthrough drugs, formulate better agrichemicals and develop new smart materials have designed their products using long-established laboratory methods. But...
Cysteine Dioxygenase: The Importance of Key Residues and Insight into the Mechanism of the Metal Center
cysteine dioxygenase iron mechanism cofactor kinetics
2014/12/12
Cysteine dioxygenase (CDO) is a non-heme iron enzyme that can be found in mammalian tissue. It is mainly localized in the liver but is also present in the brain, kidney, and adipose tissue. CDO conver...
Towards the isolation of esterase and amidase catalytic antibodies: Examination of germinal center diversity by cloning and sequence analysis of genes encoding monoclonal antibodies elicited by a transition state analogue
Esterase catalytic antibodies amidase amide ester hydrolysis reaction hybrid cells B cells the TSA induced antibodies genes cells cell lines
2014/12/11
In this study, a transition state analogue (TSA) approach was employed for the isolation of catalytic antibodies with esterase or amidase activity. The TSA used in this study, phosphonamidate, mimics ...
Two new requirements for producing normal ribosomes: (I) A novel helicase is needed for snoRNP biogenesis, and; (II) Pseudouridine modifications in the reaction center are important for ribosome function
Eukaryotic cells contain protein particles ribosomes RNA nucleotide pseudouridine
2014/12/11
Eukaryotic cells contain scores of small nucleolar RNAs (snoRNAs) that are complexed with proteins in particles known as snoRNPs. SnoRNPs function in processing of ribosomal RNA (rRNA) and nucleotide ...
Changes in the mutual orientation of tRNA and 23S rRNA at the peptidyl transferase center of the ribosome detected by crosslinking of a photoreactive transition-state analog
Amino acids dynamic interaction ribosomes peptide bonds peptidyl transferase ribosomes
2014/12/11
Dynamic interactions between the amino acid acceptor end of tRNA and the ribosome underlie the synthesis of successive peptide bonds at the peptidyl transferase center (PTC) of the 50S ribosomal subun...
Quality assessment concept of the World Data Center for Climate and its application to CMIP5 data
Quality assessment World Data Center
2014/12/10
The preservation of data in a high state of quality which is suitable for interdisciplinary use is one of the
most pressing and challenging current issues in longterm
archiving.
Infrared and X-ray Studies of the Galactic Center
Galactic Center infrared Star formation survey X-ray
2014/12/9
The purpose of this dissertation is to locate evolved massive stars within the central 50 pc of the Galactic Center. These stars are considered to be the descendants of O stars and should be less than...