Results 91 to 100 of about 2,841,431 (249)
A review of rapid X-ray variability in X-ray binaries [PDF]
arXiv, 2004 A comprehensive review of aperiodic rapid X-ray variability (QPO and noise) in X-ray binaries with neutron stars and black holes.
arxiv
Low Mass X-ray Binaries As the Source of the Very Soft X-ray Emission in the X-ray Faintest Early-Type Galaxies [PDF]
, 1997 The X-ray emission from the faintest X-ray elliptical and S0 galaxies is characterized by a hard ~5 keV component, and a very soft ~0.2 keV component. The hard component has generally been regarded as the integrated emission from low mass X-ray binaries (LMXBs), but the origin of the soft component is unknown.
arxiv +1 more source
Alkane biosynthesis gene expression and its increased production in recombinant cyanobacteria
FEBS Open Bio, EarlyView.The transcription and mRNA structures of the alkane biosynthesis genes ado/aar were analysed in the representative cyanobacteria PCC 6803 and SK1‐2‐1, which produce C17H36 and C15H32, respectively. PCC 6803 transconjugants carrying these genes showed a 1.8‐ to 2.3‐fold increase in C17H36 production.
Misato Nagao +4 more
wiley +1 more source
Evolution of hard X-ray photon index in black-hole X-ray binaries: hints for accretion physics [PDF]
arXiv, 2019 The anti- and positive correlations between X-ray photon index and Eddington-scaled X-ray luminosity were found in decay phase of X-ray binary outbursts and a sample of active galactic nuclei in former works. We further systematically investigate the evolution of X-ray spectral index, along the X-ray flux and Eddington ratio in eight outbursts of four ...
arxiv
Establishment and biological characterization of radioresistant colorectal cancer cell lines
FEBS Open Bio, EarlyView.Under ionizing radiation exposure, radiation‐sensitive cancer cells exhibit oxidative stress and DNA damage, while radiation‐resistant cancer cells exhibit strong antioxidant properties and DNA damage repair. Radiotherapy resistance is a major cause of recurrence and metastasis in colorectal cancer (CRC).
Tian‐Yin Qu +10 more
wiley +1 more source
GYNECOLOGICAL STATUS OF PATIENTS WITH COLORECTAL CANCER
Сибирский онкологический журнал, 2016 The purpose of the study was to identify risk factors for colorectal cancer on the basis of retrospective analysis of gynecological history and status of 183 patients with colon adenocarcinoma treated at the Russian X-Ray Radiology Research Center ...
V. A. Solodky +4 more
doaj
Breast calcifications. Literature review
Опухоли женской репродуктивной системыBreast cancer continues to maintain a leading position in the structure of the incidence of all oncological diseases among women. Early diagnosis of the disease at the stage of assessing indirect signs makes it possible in the future to maintain a good ...
O. S. Khodorovich +4 more
doaj +1 more source
Crystals, 2020 Structural changes of chloride and bromide complexes, [Ni(Et2en)2(H2O)2]Cl2 (designated as 1a) and [Ni(Et2en)2]Br2 (2a), have been investigated by using simultaneous measurements of powder X-ray diffraction (XRD) and differential scanning calorimetry ...
Hisashi Konaka, Akito Sasaki
doaj +1 more source
On the X-ray properties of V Sge and its relation to the supersoft X-ray binaries [PDF]
arXiv, 1998 We investigate the ROSAT X-ray properties of V Sge, which has been proposed to be related to supersoft X-ray binaries. During optical bright states, V Sge is a faint hard X-ray source, while during optical faint states (V >=12 mag), V Sge is a `supersoft' X-ray source.
arxiv
, 2017 We continue the study of the first sample of shear-selected clusters (Wittman et al. 2006) from the initial 8.6 square degrees of the Deep Lens Survey (DLS, Wittman et al.
Deshpande, Amruta J. +2 more
core +1 more source