Distance-tree analysis, distribution and co-presence of bilin- and flavin-binding prokaryotic photoreceptors for visible light

2013 ◽  
Vol 12 (7) ◽  
pp. 1144 ◽  
Author(s):  
Carmen Mandalari ◽  
Aba Losi ◽  
Wolfgang Gärtner
Keyword(s):  
Visible Light ◽  
Tree Analysis ◽  
Distance Tree ◽  
Flavin Binding

Studies of metaphase chromosomes in the scanning transmission x-ray microscope: Image fidelity, radiation damage and specimen preparation

1992 ◽  
Vol 50 (2) ◽  
pp. 1038-1039
Author(s):  
Shawn Williams ◽  
Xiaodong Zhang ◽  
Susan Lamm ◽  
Jack Van’t Hof
Keyword(s):  
Visible Light ◽  
Radiation Damage ◽  
Cross Section ◽  
Imaging Techniques ◽  
Dose Range ◽  
Specimen Preparation ◽  
X Rays ◽  
Metaphase Chromosomes ◽  
X Ray ◽  
Scanning Transmission

The Scanning Transmission X-ray Microscope (STXM) is well suited for investigating metaphase chromosome structure. The absorption cross-section of soft x-rays having energies between the carbon and oxygen K edges (284 - 531 eV) is 6 - 9.5 times greater for organic specimens than for water, which permits one to examine unstained, wet biological specimens with resolution superior to that attainable using visible light. The attenuation length of the x-rays is suitable for imaging micron thick specimens without sectioning. This large difference in cross-section yields good specimen contrast, so that fewer soft x-rays than electrons are required to image wet biological specimens at a given resolution. But most imaging techniques delivering better resolution than visible light produce radiation damage. Soft x-rays are known to be very effective in damaging biological specimens. The STXM is constructed to minimize specimen dose, but it is important to measure the actual damage induced as a function of dose in order to determine the dose range within which radiation damage does not compromise image quality.

Scanning luminescence x-ray microscopy: Progress toward selective staining using microspheres

1994 ◽  
Vol 52 ◽  
pp. 74-75
Author(s):  
C. Jacobsen ◽  
J. Fu ◽  
S. Mayer ◽  
Y. Wang ◽  
S. Williams
Keyword(s):  
Visible Light ◽  
Active Sites ◽  
Light Emission ◽  
Chinese Hamster ◽  
Polystyrene Spheres ◽  
Good Resistance ◽  
X Ray ◽  
Selective Staining ◽  
Visible Light Emission ◽  
Specific Labelling

In scanning luminescence x-ray microscopy (SLXM), a high resolution x-ray probe is used to excite visible light emission (see Figs. 1 and 2). The technique has been developed with a goal of localizing dye-tagged biochemically active sites and structures at 50 nm resolution in thick, hydrated biological specimens. Following our initial efforts, Moronne et al. have begun to develop probes based on biotinylated terbium; we report here our progress towards using microspheres for tagging.Our initial experiments with microspheres were based on commercially-available carboxyl latex spheres which emitted ~ 5 visible light photons per x-ray absorbed, and which showed good resistance to bleaching under x-ray irradiation. Other work (such as that by Guo et al.) has shown that such spheres can be used for a variety of specific labelling applications. Our first efforts have been aimed at labelling ƒ actin in Chinese hamster ovarian (CHO) cells. By using a detergent/fixative protocol to load spheres into cells with permeabilized membranes and preserved morphology, we have succeeded in using commercial dye-loaded, spreptavidin-coated 0.03μm polystyrene spheres linked to biotin phalloidon to label f actin (see Fig. 3).

Photocatalyst-free decarboxylative aminoalkylation of imidazo[1,2-a]pyridines with N-aryl glycines enabled by visible light

2019 ◽  
Vol 6 (21) ◽  
pp. 3693-3697 ◽  
Author(s):  
Jiu-Jian Ji ◽  
Zhi-Qiang Zhu ◽  
Li-Jin Xiao ◽  
Dong Guo ◽  
Xiao Zhu ◽  
...  
Keyword(s):  
Visible Light

A novel, green and efficient visible-light-promoted decarboxylative aminoalkylation reaction of imidazo[1,2-a]pyridines with N-aryl glycines has been described.

718: Modeling the Cost of Management Options for Stage I Nonseminomatous Germ Cell Tumors: A Decision Tree Analysis

2005 ◽  
Vol 173 (4S) ◽  
pp. 195-196
Author(s):  
Richard E. Link ◽  
Mohamad E. Allaf ◽  
Roberto Pili ◽  
Louis R. Kavoussi
Keyword(s):  
Decision Tree ◽  
Germ Cell ◽  
Germ Cell Tumors ◽  
Stage I ◽  
Decision Tree Analysis ◽  
Management Options ◽  
Tree Analysis ◽  
The Cost ◽  
Nonseminomatous Germ Cell Tumors

Visible-light-assisted synthesis

AccessScience ◽  
2015 ◽  
Keyword(s):  
Visible Light

Predicting the Recurrence of Child Maltreatment: A Classification and Regression Tree Analysis

2007 ◽  
Author(s):  
Eve Sledjeski ◽  
Lisa Dierker ◽  
Rebecca Brigham ◽  
Eileen Breslin
Keyword(s):  
Child Maltreatment ◽  
Regression Tree ◽  
Classification And Regression Tree ◽  
Tree Analysis ◽  
Regression Tree Analysis ◽  
Classification And Regression

Visible-light-driven Photocatalytic Properties of Electrospun Bismuth Tungstate/PAN Composite Nanofiber Membrane

2019 ◽  
Vol 35 (3) ◽  
pp. 295-304
Author(s):  
XINHUA LIU ◽  
◽  
HONGZHANG LI ◽  
ZHI LIU ◽  
YINCHUN FANG ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Properties ◽  
Nanofiber Membrane ◽  
Bismuth Tungstate ◽  
Composite Nanofiber ◽  
Visible Light Driven

Space Charge Formation by Irradiation of Visible Light in Polyimide under DC Electric Stress

2009 ◽  
Vol 129 (7) ◽  
pp. 463-469 ◽  
Author(s):  
Tomo Tadokoro ◽  
Takuo Motoyama ◽  
Hiroshi Harada ◽  
Yasuhiro Tanaka ◽  
Tastuo Takada ◽  
...  
Keyword(s):  
Visible Light ◽  
Space Charge ◽  
Charge Formation ◽  
Electric Stress

High Performance Visible-light-responsive TiO2/CuxO/Cu Photocatalyst

2016 ◽  
Vol 136 (8) ◽  
pp. 551-552
Author(s):  
Sumio Kogoshi ◽  
Nao Kato ◽  
Yu Katsui ◽  
Noboru Katayama ◽  
Syota Yazawa ◽  
...  
Keyword(s):  
Visible Light ◽  
High Performance
Sign in / Sign up

Export Citation Format

Share Document