Results 81 to 90 of about 45,533 (303)
Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation
Advanced Materials, EarlyView.Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju +7 more
wiley +1 more source
Uterine natural killer cell heterogeneity: Lessons from mouse models [PDF]
, 2020 Natural killer (NK) cells are the most abundant lymphocytes at the maternal-fetal interface. Epidemiological data implicate NK cells in human pregnancy outcomes.
Sojka, Dorothy K
core +1 more source
Effects of Circulating and Local Uteroplacental Angiotensin II in Rat Pregnancy. [PDF]
, 2010 The renin-angiotensin (Ang) system is important during placental development. Dysregulation of the renin-Ang system is important in preeclampsia (PE). Female rats transgenic for the human angiotensinogen gene crossed with males transgenic for the human ...
Brosnihan, KB +12 more
core +1 more source
Hydrogel Confinement Strategies for 3D Cell Culture in Microfluidic Systems
Advanced Materials Technologies, EarlyView.Hydrogel confinement structures are key to organizing 3D cell cultures in microfluidic devices. This review classifies five structural strategies (micropillar, phaseguide, porous membrane, stepped‐height, and support‐free) and examines their trade‐offs alongside fabrication methods.
Soohyun Kim, Min Seok Lee, Sung Kyun Lee
wiley +1 more source
Imaging for endoscopic sinus surgery in adults [PDF]
, 2002 Computerized tomography (CT) offers the gold standard in terms of imaging the extent of disease and the fine detailed anatomy, both pre-requisites to the safe practice of endoscopic sinus surgery. Neither plain X-rays nor magnetic resonance imaging (MRI)
Lloyd, G, Lund, VJ, Savy, L
core +1 more source
[Spiral coils for arterial occlusion].
Vestnik khirurgii imeni I. I. Grekova, 1986 Roentgen endovascular occlusion with spiral emboli was used in 240 patients with different diseases. The introduction of spiral emboli into the arteries of abdominal and retroperitoneal organs was fulfilled through usual angiographic catheters. Duration of the arterial occlusion was checked up in the following angiographic examinations and showed the ...
V K, Ryzhkov +3 more
openaire +1 more source
Spiral Arterial Structures in the Fetal Placenta
Experimental Biology and Medicine, 1949 SummaryThe spiral nature of the primary villus stem vessels has been described for the first time. The underlying mechanism suggests a trophic response to steroid hormones, comparable to the effect produced on vessels of the uterus and ovary. This spiral pattern provides a gradient of pressure which may slow fetal circulation through the placenta and ...
openaire +2 more sources
Recent Advances in Variable‐Stiffness Robotic Systems Enabled by Phase‐Change Materials
Advanced Robotics Research, EarlyView.Phase‐change materials (PCMs), such as shape memory alloys, hydrogels, shape memory polymers, liquid crystal elastomers, and low‐melting‐point alloys, are driving advancements in stiffness‐tunable robotic systems across a wide range of applications. This review highlights recent progress in PCM‐enabled robotics, focusing on their underlying mechanisms,
Sukrit Gaira +5 more
wiley +1 more source
Increased angiogenic factor secretion by decidual natural killer cells from pregnancies with high uterine artery resistance alters trophoblast function. [PDF]
, 2014 STUDY QUESTION Are the concentrations of factors secreted by decidual natural killer (dNK) cells from pregnancies at high risk of poor spiral artery remodelling different to those secreted from pregnancies at low risk?
A. E. Wallace +35 more
core +2 more sources