Search results for " wall"
showing 10 items of 692 documents
Congenital heart defects in newborns with apparently isolated single gastrointestinal malformation: A retrospective study.
2015
Abstract Background Congenital gastrointestinal system malformations/abdominal wall defects (GISM) may appear as isolated defects (single or complex), or in association with multiple malformations. The high incidence of association of GISM and congenital heart defects (CHD) in patients with syndromes and malformative sequences is known, but less expected is the association of apparently isolated single GISM and CHD. The aim of this study was to investigate the frequency of CHD in newborns with isolated GISM, and the possibility to modify the diagnostic-therapeutic approach just before the onset of cardiac symptoms or complications. Methods Anamnestic, clinical, and imaging data of newborns …
EXPERIMENTAL VALIDATION OF A FINITE DIFFERENCES TROMBE WALL MODEL
1983
ABSTRACT The paper describes a finite differences Trombe wall model validation, based on experimental data recorded at a passive systems test station in Central Italy. The computer code has been checked step by step, due to the different reliability of the data and to the various algorithms used in the code. Thus, cloudy and clear nights with no thermocirculation were simulated and compared with experimental data, then evening hours with thermocirculation, but no sun and, finally, a full day was simulated and compared. Some inaccuracy has been found in the simulation of wind effect on outer glass convective heat transfer coefficient. The code, however, has been found to provide data in reas…
Reliable Propagation of Magnetic Domain Walls in Cross Structures for Advanced Multiturn Sensors
2017
[EN] We develop and analyze an advanced concept for a domain-wall-based sensing of rotations. Moving domain walls in n closed loops with n - 1 intersecting convolutions by rotating fields, we are able to sense n rotations. By combining loops with coprime numbers of rotations, we create a sensor system allowing for the total counting of millions of turns of a rotating applied magnetic field. We analyze the operation of the sensor and identify the intersecting cross structures as the critical component for reliable operation. Specifically, depending on the orientation of the applied field angle with the magnetization in the branches of the cross, a domain wall is found to propagate in an unwa…
Spin-Wave Driven Bidirectional Domain Wall Motion in Kagome Antiferromagnets
2021
We predict a mechanism to controllably manipulate domain walls in kagome antiferromagnets via a single linearly polarized spin-wave source. We show by means of atomistic spin dynamics simulations of antiferromagnets with kagome structure that the speed and direction of the domain wall motion can be regulated by only tuning the frequency of the applied spin-wave. Starting from microscopics, we establish an effective action and derive the corresponding equations of motion for the spin-wave-driven domain wall. Our analytical calculations reveal that the coupling of two spin-wave modes inside the domain wall explains the frequency-dependent velocity of the spin texture. Such a highly tunable sp…
Volumetric changes in alveolar ridge preservation with a compromised buccal wall: a systematic review and meta-analysis.
2020
Background Many studies have addressed socket preservation, though fewer publications considering buccal wall loss can be found, since the literature typically considers sockets with four walls. A systematic review was made on the influence of type II buccal bone defects, according to Elian’s Classification, in socket grafting materials upon volumetric changes in width and height. Material and Methods An electronic and manual literature search was conducted in accordance to PRISMA statement. The search strategy was restricted to randomized controlled trials (RCTs) and controlled clinical trials (CCTs) describing post-extraction sockets with loss of buccal wall in which alveolar ridge preser…
Le monastère Saint-Pierre d'Osor (île de Cres) : septième campagne d'études archéologiques
2013
The 2012 campaign of the archaeological research project permitted the exhaustive excavations of the immediate surroundings of the southern nave of the abbey church of St Peter in Osor. The richness and the complexity of the discovered structures confirmed the great archaeological potential of this sector. Namely, a funeral zone that is situated south to the church is occupied by two buildings perpendicular to the church which we interpret as a mausoleum (the one on the west) and a chapel with one privileged burial (the one on the east). The great number of built tombs or simples graves confirmed that this sector had funeral function even before the XIth century and the construction of the …
MDCT Enteroclysis and Enterography
2015
Since the first studies suggesting its possible role in the management of Crohn’s disease patients, multidetector computed tomography has usually been considered a useful diagnostic technique in Crohn’s disease for the detection of extraenteric complications, as intra-abdominal abscesses, the study of strictures, prestenotic dilatations, fistulas, and postsurgical complications. Moreover, it is a widely available technique and is considered the gold standard in emergency.
Endoscopic findings in periapical surgery. A cross-sectional study of 206 roots
2022
A study is made of the findings of high-magnification rigid endoscopy at the root end surface following apicoectomy of teeth subjected to periapical surgery. A cross-sectional study was made of patients subjected to periapical surgery at the Unit of Oral Surgery and Implantology (University of Valencia, Valencia, Spain) between 2011 and 2019. Following apicoectomy, the root end surfaces were inspected, with the evaluation of untreated canals, isthmuses, craze lines, crack lines, opaque dentin and gaps. Likewise, an analysis was made of the association between patient age and the tooth type and restoration and the presence of craze lines, cracks, opaque dentin and gaps. The final sample cons…
Synthesis, Chirality, and Magnetic Properties of Bimetallic Cyanide-Bridged Two-Dimensional Ferromagnets
2006
The assembly of hexacyanoferrate(III) anions and nickel(II) bis-diamino complexes of the chiral ligand trans-cyclohexane-1,2-diamine (trans-chxn) yields cyanide-bridged two-dimensional ferromagnets of the general formula [Ni(trans-chxn)2]3[Fe(CN)6]2‚2H2O. Their crystal structure is built from cyanide-bridged bimetallic planes separated by the bulky chxn ligands, giving rise to a large interlayer distance ( d ) 11.7 A). These materials order ferromagnetically at the Curie temperature TC ) 14 K. AC susceptibility measurements evidence an unusual magnetic behavior below TC, with a marked frequency dependence. A thorough magnetic analysis demonstrates that this complex behavior is due to the pi…
Breaking the “Fourth Wall” in Qualitative Research: Participant-Led Digital Data Construction
2018
This article reconstructs the typical researcher-participant focus - where the participants are doing for us - instead we followed the participants’ lead in the construction of research. Using a qualitative literacy event case study as an example, we describe how participants unexpectedly co-constructed knowledge through a participant-led digital data collection. In this theoretical article, we provide an explanation of the original study, which used observations, semi-structured interviews, and home visits as a collective qualitative case study on parental participation in social literacy practices. The original investigation led to the important shift that occurred in participant-research…