Results 71 to 80 of about 1,021,079 (330)

On the X-rays of permutations

open access: yes, 2005
The X-ray of a permutation is defined as the sequence of antidiagonal sums in the associated permutation matrix. X-rays of permutation are interesting in the context of Discrete Tomography since many types of integral matrices can be written as linear ...
Bebeacua, Cecilia   +3 more
core   +2 more sources

X-rays referral in an emergency department [PDF]

open access: yesСаратовский научно-медицинский журнал, 2010
This study highlighted referral rate for X-rays with positive findings in an Emergency department of a tertiary care hospital in Makkah, Saudi Arabia.
Gazzaz Zohair Jamil   +4 more
doaj  

Densitometer system for liquid hydrogen has high accuracy, fast response [PDF]

open access: yes, 1966
Developmental densitometer system for cryogenic liquids uses two balanced ionization chambers containing xenon gas, with X rays as the radiation source. The X rays are heavily filtered with a lead shield to make the energy spectrum much less dependent on

core   +1 more source

Interstellar Gas and X-rays toward the Young Supernova Remnant RCW 86; Pursuit of the Origin of the Thermal and Non-Thermal X-ray

open access: yes, 2017
We have analyzed the atomic and molecular gas using the 21 cm HI and 2.6/1.3 mm CO emissions toward the young supernova remnant (SNR) RCW 86 in order to identify the interstellar medium with which the shock waves of the SNR interact.
Fukuda, T.   +15 more
core   +1 more source

A nucleotide‐independent, pan‐RAS‐targeted DARPin elicits anti‐tumor activity in a multimodal manner

open access: yesMolecular Oncology, EarlyView.
We report a Designed Ankyrin Repeat Protein that binds and inhibits RAS proteins, which serve as central cell signaling hubs and are essential for the progression of many cancers. Its unique feature is that it does not discriminate between different RAS isoforms or mutations and is capable of binding to RAS in both its active (GTP‐bound) and inactive ...
Jonas N. Kapp   +13 more
wiley   +1 more source

The Effect of the Exposure  into a low dose of X-ray on human Hematological Parameters

open access: yesمجلة علوم ذي قار
 Although low dose of X-rays are widely used in medical radiology, the harmful effects of exposure to low dose of X-rays during diagnostic radiological examination is still a commonly discussed topic.
Deena Jalal   +2 more
doaj   +1 more source

Analisa Difraksi Sinar-X pada Baja Tahan Karat Austentitik dan Feritik (Uji Laboratorium)

open access: yesJournal of Dentistry Indonesia, 2015
X- rays with wavelength in the range 0,5 to 2,5 Å, have a very short wavelength compare to the visible light wavelength in order of 6000 Å. Therefore, x-rays can be used for determination of the finest structure of materials by using the x-rays ...
Siti Triaminingsih
doaj   +1 more source

Electron beam welder X-rays its own welds [PDF]

open access: yes, 1967
Beam of an electron beam welder X rays its own welds, enabling rapid weld quality checks to be made without removing the work from the vacuum chamber. A tungsten target produces X rays when hit by the beam.
Roden, W. A.
core   +1 more source

X-ray observations of classical novae. Theoretical implications [PDF]

open access: yes, 2009
Detection of X-rays from classical novae, both in outburst and post-outburst, provides unique and crucial information about the explosion mechanism. Soft X-rays reveal the hot white dwarf photosphere, whenever hydrogen (H) nuclear burning is still on and
Balman   +53 more
core   +2 more sources

BMP antagonist CHRDL2 enhances the cancer stem‐cell phenotype and increases chemotherapy resistance in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Overexpression of CHRDL2 in colon cancer cells makes them more stem‐like and resistant to chemo‐ and radiotherapy. CHRDL2‐high cells have upregulation of the WNT pathway, genes involved in the DNA damage response (DDR) pathway and epithelial‐to‐mesenchymal transition (EMT). This leads to quicker repair of damaged DNA and more cell migration.
Eloise Clarkson, Annabelle Lewis
wiley   +1 more source

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