Results 21 to 30 of about 1,817,519 (277)

Impact of Screw Type on Kyphotic Deformity Correction after Spine Fracture Fixation: Cannulated versus Solid Pedicle Screw [PDF]

Asian Spine Journal, 2018
Study Design Retrospective review. Purpose To detect the effect of cannulated (poly-axial head) and solid (mono-axial head) screws on the local kyphotic angle, vertebral body height, and superior and inferior angles between the screw and the rod in the ...
Mahmood Ali Arbash, Ashik Mohsin Parambathkandi, Abdul Moeen Baco, Abduljabbar Alhammoud   +3 more
doaj   +1 more source

Perda de carga em microtubos e conectores utilizados em microaspersão Head loss in microtubes and connectors used in microsprinkler systems

Engenharia Agrícola, 2009
Este trabalho foi desenvolvido com o objetivo de ajustar equações que estimam a perda distribuída de carga em microtubos utilizados em microaspersão e a perda localizada de carga na passagem lateral do fluxo por meio dos conectores na linha lateral.
Danieli B. Zitterell, José A. Frizzone, Osvaldo Rettore Neto, Mario N. Ullmann   +3 more
doaj   +1 more source

Demyelination and axonal preservation in a transgenic mouse model of Pelizaeus-Merzbacher disease [PDF]

, 2010
It is widely thought that demyelination contributes to the degeneration of axons and, in combination with acute inflammatory injury, is responsible for progressive axonal loss and persistent clinical disability in inflammatory demyelinating disease.
Angus M. Brown, Fredrik I. Gruenenfelder, Ian R. Griffiths, Julia M. Edgar, Klaus‐Armin Nave, Laura Pratola, Mailis C. McCulloch, Paul Montague, Sebastian Thilemann, Siegal S, Williams MA   +10 more
core   +2 more sources

Acceleration of Telomere Loss by Chemotherapy Is Greater in Older Patients with Locally Advanced Head and Neck Cancer [PDF]

Clinical Cancer Research, 2006
Abstract Purpose: Chronic viral infection and combinations of chemotherapeutic drugs have been reported to accelerate telomere erosion. Here, we asked if chemoradiotherapy, using the single agent cisplatin, would accelerate telomere loss in head and neck cancer patients, and whether loss was linked to smoking status, age, gender, or ...
Brad M, Unryn, Desiree, Hao, Stefan, Glück, Karl T, Riabowol   +3 more
openaire   +2 more sources

Analysis of local head losses in microirrigation lateral connectors based on machine learning approaches

Irrigation Science, 2023
AbstractThe presence of emitters along the lateral, as well as of connectors along the manifold, causes additional local head losses other than friction losses. An accurate estimation of local losses is of crucial importance for a correct design of microirrigation systems.
Martí Pérez, Pau Carles, Shiri, Jalal, Roman Alorda, Armando, Royuela, Alvaro, Turegano Pastor, José Vicente   +4 more
openaire   +2 more sources

Feasibility of head-tilted brain scan to reduce susceptibility-induced signal loss in the prefrontal cortex in gradient echo-based imaging

NeuroImage, 2020
Susceptibility-induced static field (B0) inhomogeneity near the nasal cavity degrades high-field MRI image quality. Many studies have addressed this problem by hardware- or sequence-based methods to improve local B0 shimming or minimize the impact of ...
Seulki Yoo, Hayoung Song, Seong-Gi Kim, Won Mok Shim, Seung-Kyun Lee   +4 more
doaj   +1 more source

Modelo matemático aplicado à irrigação localizada com microtubos sob regime de escoamento turbulento Mathematic model applied to drip irrigation with microtubs under turbulent flow

Engenharia Agrícola, 2011
O presente trabalho teve como objetivos, desenvolver dois modelos matemáticos para dimensionamento de microtubos em irrigação localizada, operando sob regime de escoamento turbulento, nos quais foram incluídas as perdas de carga no microtubo, perda de ...
Wanderley de J. Souza, Tarlei A. Botrel, Alexsandro C. dos S. Almeida, Cristina B. Correa   +3 more
doaj   +1 more source

Major and minor head losses in a hydraulic flow circuit: experimental measurements and a Moody’s diagram application

Eclética Química, 2020
Domestic and industrial hydraulic drainage networks have gradually become more complicated because of the cities’ rapid expansion. In surcharged hydraulic systems, the head losses may become rather significant, and should not be neglected because could ...
Aline Amaral Madeira
doaj   +1 more source

Therapeutic effect of human umbilical cord mesenchymal stem cells in early traumatic osteonecrosis of the femoral head

Journal of Orthopaedic Translation, 2022
Background: Osteonecrosis of the femoral head (ONFH) is a refractory disease due to its unclear pathomechanism. Therapies during the early stage of ONFH have not achieved satisfactory results.
Jun Zhao, Haoye Meng, Sida Liao, Yaoyu Su, Li Guo, Aiyuan Wang, Wenjing Xu, Hao Zhou, Jiang Peng   +8 more
doaj   +1 more source

RODFormer: High-Precision Design for Rotating Object Detection with Transformers

Sensors, 2022
Aiming at the problem of Transformers lack of local spatial receptive field and discontinuous boundary loss in rotating object detection, in this paper, we propose a Transformer-based high-precision rotating object detection model (RODFormer).
Yaonan Dai, Jiuyang Yu, Dean Zhang, Tianhao Hu, Xiaotao Zheng   +4 more
doaj   +1 more source