Results 41 to 50 of about 203,008 (245)

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Determinants and trends in perinatal human immunodeficiency virus type 1 (HIV-1) transmission in the metropolitan area of Belo Horizonte, Brazil: 1998 - 2005

Memorias do Instituto Oswaldo Cruz, 2008
Significant decrease in human immunodeficiency virus type 1 (HIV-1) vertical transmission has been observed worldwide in centers where interventions such as antiretroviral therapy (ART), elective cesarean section, and avoidance of breastfeeding have been
Fabiana Maria Kakehasi, Jorge A Pinto, Roberta Maia de Castro Romanelli, Mariângela Carneiro, Carolina Silva Cardoso, Maria do Carmo Teatini Tavares, Victor Hugo Melo, Regina Amélia Lopes Pessoa de Aguiar   +7 more
doaj   +1 more source

Vertical Transmission of Mycoplasma pneumoniae Infection [PDF]

Neonatology, 2018
<i>Mycoplasma pneumoniae</i> is a significant cause of pneumonia in school-aged children and young adults. We report a case of neonatal <i>M. pneumoniae</i> pneumonia in a preterm child manifesting in the first hours of life. Vertical transmission was demonstrated by the detection of <i>M.
Huber, Benedikt M, Meyer Sauteur, Patrick M, Unger, Wendy W J, Hasters, Paul, Eugster, Marcel R, Brandt, Simone, Bloemberg, Guido V, Natalucci, Giancarlo, Berger, Christoph   +8 more
openaire   +4 more sources

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

VERTICAL TRANSMISSION OF HTLV-I/II: A review

Revista do Instituto de Medicina Tropical de São Paulo, 1998
The vertical transmission of the human T-cell lymphotropic virus type I (HTLV-I) occurs predominantly through breast-feeding. Since some bottle-fed children born to carrier mothers still remain seropositive with a frequency that varies from 3.3% to 12.8%,
Achiléa Lisboa BITTENCOURT
doaj   +1 more source

Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows

Advanced Engineering Materials, EarlyView.
A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba, Sang‐Hyeok Lee, Christina Gasper, Martina Freund, Sandra Korte‐Kerzel, Ulrich Kerzel   +5 more
wiley   +1 more source

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

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Vertically transmitted infections: detection and clinical management. Bibliographic review

Medicina Universitaria
Vertical transmission infections have been a public health challenge for decades due to their impact on maternal and infant morbidity and mortality. Pregnant women are vulnerable to contracting infections affecting the fetus or newborn and generating ...
Diana L. Montes-Murgas, Adriana González-Martínez   +1 more
doaj   +1 more source

First report of venereal and vertical transmission of canine leishmaniosis from naturally infected dogs in Germany

Parasites & Vectors, 2012
Background Canine leishmaniosis (CanL) is a zoonotic disease caused by Leishmania (L.) infantum. It is endemic to several tropical and subtropical countries but also to the Mediterranean region.
Naucke Torsten J, Lorentz Susanne
doaj   +1 more source