Results 41 to 50 of about 222,693 (291)

Congenital toxoplasmosis: the challenge of early diagnosis of a complex and neglected disease

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2019
The objective of this study was to report a case of congenital toxoplasmosis that illustrates the difficulties in diagnosing this disease. The case highlights the lack of prophylactic guidelines and shortcomings in the gestational screening process.
Janer Aparecida Silveira Soares   +1 more
doaj   +1 more source

Neurochemical Endpoints to Inform Early‐Stage Trials of Spinocerebellar Ataxia 2 and 3 in a Multisite Setting

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neurochemical levels measured by brain MR spectroscopy (MRS) have been proposed as endpoints for clinical trials in early‐stage spinocerebellar ataxia (SCA) trials. We tested their trial‐readiness by quantifying neurochemicals in three affected brain regions in early‐stage cohorts of SCA2 and SCA3, examining their reproducibility in ...
James M. Joers   +19 more
wiley   +1 more source

The place of retroviruses in perinatal pathology (review of literature)

open access: yesЖурнал инфектологии, 2014
Review deals with HIV infection in pregnant women and mechanisms of vertical transmission of virus from mother to fetus. The role of placenta as defensive barrier is evaluated, as well as pathological changes in villous chorion, which can lead to ...
A. V. Kolobov
doaj   +1 more source

Holobiont Evolution: Mathematical Model with Vertical vs. Horizontal Microbiome Transmission [PDF]

open access: yes, 2020
A holobiont is a composite organism consisting of a host together with its microbiome, such as a coral with its zooxanthellae. To explain the often intimate integration between hosts and their microbiomes, some investigators contend that selection ...
Roughgarden, Joan
core   +1 more source

Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula   +7 more
wiley   +1 more source

Possibility of vertical transmission in Covid - 19 pregnancy - a hospital based prospective cohort study from Kerala, India [PDF]

open access: yesNew Indian Journal of OBGYN
Background: Knowledge regarding the possible risk of vertical transmission is very limited, but is crucial for guiding and counselling patient and also essential for formulating the principles of obstetric management.
Swapna CS   +5 more
doaj   +1 more source

Assessing the vertical transmission potential of dengue virus in field-reared Aedes aegypti using patient-derived blood meals in Ho Chi Minh City, Vietnam

open access: yesParasites & Vectors, 2020
Background Dengue viruses (DENV) can be transmitted from an adult female Aedes aegypti mosquito through the germ line to the progeny; however, there is uncertainty if this occurs at a frequency that is epidemiologically significant.
Daniela da Silva Goncalves   +14 more
doaj   +1 more source

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo   +3 more
wiley   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

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