We present results from an efficient, non-traditional survey to discover damped Lyα (DLA) absorption systems with neutral hydrogen column densities NHI ≥ 2 × 10 atoms cm and redshifts z < 1.65. In the past, identification of DLA systems at z < 1.65 has been difficult due to their rare incidence and the need for UV spectroscopy to detect Lyα absorption at these low redshifts. Our survey relies o...

We used our database of VLT-UVES quasar spectra to build up a sample of 70 Damped Lyman-α (DLA) or strong sub-DLA systems with total neutral hydrogen column densities of log N(H ) > ∼ 20 and redshifts in the range 1.7 < z abs < 4.3. For each of the systems, we measured in an homogeneous manner the metallicities relative to Solar, [X/H] (with X = Zn, or S or Si), and the velocity widths of low-...

In an ongoing programme to identify a sample of high z DLA galaxies we have found the long sought for case of a Lyα emitter seen in the centre of a broad DLA trough. This is the predicted “textbook case” of an intervening DLA galaxy if DLA galaxies are small, but would not be expected if intervening high redshift DLA galaxies have large gaseous disks. The Lyα flux is 5.4 −0.8 × 10 ergs scm simi...

Background and Purpose Our purpose was to develop a deep learning angiography (DLA) method to generate 3D cerebral angiograms from a single contrast-enhanced acquisition. Material and Methods Under an approved IRB protocol 105 3D-DSA exams were randomly selected from an internal database. All were acquired using a clinical system (Axiom Artis zee; Siemens Healthineers) in conjunction with a sta...

BACKGROUND To investigate the therapeutic effect of far infrared rays and compression bandaging in the treatment of chronic lymphedema with dermatolymphangioadenitis (DLA). METHODS Between 2005 and 2013, 106 patients with chronic lymphedema with DLA treated at the Shanghai Ninth People's Hospital were retrospectively reviewed. These patients were divided into an infrared and a bandaging group...

There are limitations in pre-clinical settings using mice as a basis for clinical development in humans. In cancer, similarities exist between humans and dogs; thus, the dog patient can be a link in the transition from laboratory research on mouse models to clinical trials in humans. Knowledge of the peptides presented on MHC molecules is fundamental for the development of highly specific T cel...

The canine major histocompatibility complex contains highly polymorphic genes, many of which are critical in regulating immune response. Since domestic dogs evolved from Gray Wolves (Canis lupus), common DLA class II alleles should exist. Sequencing was used to characterize 175 Gray Wolves for DLA class II alleles, and data from 1856 dogs, covering 85 different breeds of mostly European origin,...

In this proceeding, we show that when the drive laser pulse overlaps the trapped electrons in a laser wakefield accelerator (LWFA), those electrons can gain energy from direct laser acceleration (DLA) over extended distances despite the evolution of both the laser and the wake. Through simulations, the evolution of the properties of both the laser and the electron beam is quantified, and then t...

Based on our analysis of the behavior of standard UNIX communication software, we propose a new communication mechanism which reduces software overhead. This mechanism is optimized to be used in business applications, such as those of online transaction process ing and da tabase managemen t . These applications are currently designed to operate i n mul t ip le concurrent processes , thus requir...