Results 71 to 80 of about 439,575 (308)

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

Advanced Engineering Materials, EarlyView.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani, Miguel Angel Selles, Maziar Ramezani   +2 more
wiley   +1 more source

Intestinal Dysbiosis and the Developing Lung: The Role of Toll-Like Receptor 4 in the Gut-Lung Axis. [PDF]

, 2020
BackgroundIn extremely premature infants, postnatal growth restriction (PNGR) is common and increases the risk of developing bronchopulmonary dysplasia (BPD) and pulmonary hypertension (PH). Mechanisms by which poor nutrition impacts lung development are
Chiamvimonvat, Nipavan, Gerard, Kimberly, Halloran, Katrina, Hanhauser, Ashley, Lakshminrusimha, Satyan, Monacelli, Sveva, Steinhorn, Robin H, Thai, Phung N, Underwood, Mark A, Warford, Cris, Wedgwood, Stephen   +10 more
core  

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Retinopathy of prematurity in extremely premature infants: multiplebirths versus single births

TURKISH JOURNAL OF MEDICAL SCIENCES, 2018
Background/aim: This study aimed to compare the incidence of any stage of retinopathy of prematurity (ROP) and type 1 ROP between extremely preterm multiple- and single-birth infants. Materials and methods: In this retrospective study, we included extremely preterm infants who were ≤27 weeks of gestational age at birth.
Baş, AHMET YAĞMUR, Petriçli, İkbal Seza, Kara, Caner, Ulubaş Işik, Dilek, Demirel, NİHAL   +4 more
openaire   +3 more sources

Inhaled nitric oxide as an adjunct to neonatal resuscitation in premature infants: a pilot, double blind, randomized controlled trial. [PDF]

, 2020
BackgroundNitric oxide (NO) plays an important role in normal postnatal transition. Our aims were to determine whether adding inhaled NO (iNO) decreases supplemental oxygen exposure in preterm infants requiring positive pressure ventilation (PPV) during ...
Anderson, Michael, Dannaway, Douglas, Helmbrecht, Ashley, Lakshminrusimha, Satyan, Manfredo, Amy, McCoy, Michael, Noori, Shahab, Riley, Julee, Sekar, Krishnamurthy, Szyld, Edgardo, Wlodaver, Anne   +10 more
core  

Ethical decision-making regarding infant viability: A discussion [PDF]

, 2016
© The Author(s) 2016. Background: There are no universally agreed rules of healthcare ethics. Ethical decisions and standards tend to be linked to professional codes of practice when dealing with complex issues. Objectives: This paper aims to explore the
Kelly, Janet, Welch, Emma
core   +1 more source

A Topology Optimization Framework for the Inverse Design of Nonlinear Mechanical Metamaterials

Advanced Engineering Materials, EarlyView.
This work uses topology optimization to design unit cells for mechanical metamaterials with a prescribed nonlinear stress–strain response. The framework adds contact and postbuckling modeling to synthesize microstructures for three highly nonlinear responses, including pseudoductile behavior, monostable with snap‐through buckling, and bistable ...
Charlie Aveline, Matthew Santer, Robert Hewson   +2 more
wiley   +1 more source

Increasing Prevalence and Temporal Trend of Prematurity, São Paulo, Brazil, 2000–2023

Epidemiologia
Background: premature birth is a significant public health problem, especially in developing countries such as Brazil. Premature newborns require special care from birth, often requiring prolonged hospitalization and continuous monitoring by various ...
Adriana Gonçalves de Oliveira, João Batista Francalino da Rocha, Edige Felipe de Sousa Santos, Hugo Macedo Jr., Orivaldo Florencio de Souza, Luiz Carlos de Abreu, Rubens Wajnsztejn   +6 more
doaj   +1 more source

Chronic Lung Disease after Premature Birth

New England Journal of Medicine, 2007
Bronchopulmonary dysplasia has become the most common chronic lung disease of infancy. This review summarizes the patterns and pathogenesis of chronic lung impairment that may become clinically significant decades after the use of mechanical ventilation and oxygen supplementation in premature newborns.
BARALDI, EUGENIO, FILIPPONE M.
openaire   +3 more sources

Pathways of the determinants of unfavourable birth outcomes in Kenya

, 2003
This paper explores the pathways of the determinants of unfavourable birth outcomes, such as premature birth, the size of the baby at birth, and Caesarean section deliveries in Kenya, using graphical loglinear chain models. The results show that a number
Diamond, Ian, Madise, Nyovani, Magadi, Monica, Smith, Peter   +3 more
core