Results 101 to 110 of about 796,919 (291)

Speckle tracking echocardiography in chronic obstructive pulmonary disease and overlapping obstructive sleep apnea

, 2016
Carmen Pizarro,* Fabian van Essen,* Fabian Linnhoff, Robert Schueler, Christoph Hammerstingl, Georg Nickenig, Dirk Skowasch, Marcel Weber Department of Internal Medicine II, Cardiology, Pneumology and Angiology, University Hospital Bonn, Bonn, Germany *
Skowasch D, Weber M, Hammerstingl C, Schueler R, Nickenig G, Pizarro C, Linnhoff F, van Essen F   +7 more
core  

Superoscillation in speckle patterns [PDF]

, 2008
Waves are superoscillatory where their local phase gradient exceeds the maximum wavenumber in their Fourier spectrum. We consider the superoscillatory area fraction of random optical speckle patterns.
Hamilton, AC, Dennis, MR, Courtial, J., Alasdair C Hamilton, Dennis, M.R., Mark R Dennis, Johannes Courtial, Dennis, Mark R.; id_orcid, Courtial, J, Hamilton, A., Courtial, Johannes, Hamilton, Alasdair C.   +11 more
core   +1 more source

Conformal Thermoreversible Gelatin‐Based Gel for High‐Fidelity Electrophysiological Recording and Acute Peripheral Nerve Interfacing

Advanced Materials, EarlyView.
A thermoreversible gelatin‐based gel forms a soft, conformal bioelectronic interface on complex biological surfaces. The flowable precursor penetrates hair‐dense regions, solidifies in situ, and maintains low impedance through adaptive contact and hydration retention.
Ruinan Hao, Yong Yuan, Jie Gao, Tong Wang, Jinzhi Du, Feng Tian, Xiaoli Li, Ruirui Qiao, Liqun Zhang, Jiajia Xue   +9 more
wiley   +1 more source

Non‐Invasively Tracking an Arbitrary Deformable Object Through Scattering Media and Around Corners via Speckle Correlations

Advanced Science
Tracking a hidden object is of great significance across various fields. Although several methods have attempted to track an object behind scattering media, they either only work by assuming the object's shape is invariant, or require prior information ...
Aiping Zhai, Wenjing Ji, Yan Wang, Xiyuan Luo, Wenjing Zhao, Dong Wang, Fei Liu   +6 more
doaj   +1 more source

Role of speckle tracking echocardiography in detecting early left atrial dysfunction in hypertensive patients

The Egyptian Heart Journal, 2018
Background: Arterial hypertension adversely affects left atrial (LA) size and function, effect on function may precede effect on size. Many techniques were used to assess LA function but with pitfalls.
Bassam Hennawy, Wael El Kilany, Haitham Galal, Ahmed Mamdouh   +3 more
doaj   +1 more source

Advanced Materials for Biologics Delivery to Brain Tumors

Advanced Materials, EarlyView.
Material innovation is central to unlocking the therapeutic potential of biologics against many central nervous system diseases, including brain cancer. By engineering carriers with controlled transport, targeting, and release properties, advanced materials can overcome the blood–brain barrier and tumor microenvironment, improving the delivery of ...
Yuran Feng, Yuxue Cao, Maria Kavallaris, Taskeen Janjua, Amirali Popat   +4 more
wiley   +1 more source

Self‐Assembling Copolymers Encapsulating Single Endothelial Cells Induce Endogenous ECM Deposition and Vascular Regeneration

Advanced Materials, EarlyView.
This study presents the first demonstration of stable sub‐50‐micron single‐cell GPM vesicles fabricated through the intrinsic self‐assembly of an amphiphilic copolymer. Hierarchical assembly of cell containing GPM vesicles into microspheres enable tunable, sustained cell delivery with immune protection.
Viola B. Morris, Sangho Lee, Kalp Soni, Simon He, Matthew Huang, Dandan Chen, Dae Hoon Lee, Kyung Hee Kim, Seonggeon Cho, Laura Pencea, Divit Jain, Young‐Sup Yoon   +11 more
wiley   +1 more source

SUBCLINICAL SYSTOLIC DYSFUNCTION OF THE LEFT VENTRICLE IN PREECLAMPTIC WOMEN WITHOUT PROTEINURIA. THE POSSIBILITIES OF ECHOCARDIOGRAPHY IN EARLY DIAGNOSIS

Медицинский совет, 2017
The article presents the main pathophysiological mechanisms associated with the development of complications of pregnancy against the background of arterial hypertension in patients without clinical manifestations of left ventricular dysfunction, the ...
D. A. Doroshenko, A. R. Zubarev, O. B. Lapochkina   +2 more
doaj   +1 more source

Microneedles Mediated Delivery of Nanodiamonds for Quantum Sensing of Free Radicals in Skin Tissue

Advanced Materials Technologies, EarlyView.
Fluorescent nanodiamonds are nanoscale sensors capable of monitoring cellular stress responses. However, to function effectively, they must be delivered into cells or tissues. Here, we demonstrate their application in the skin by developing a dissolvable microneedle platform that dissolves after skin insertion, enabling the delivery of nanodiamonds ...
Siyu Fan, Maria Carmona Lobita, Thea Vedelaar, Yue Zhang, Claudia Reyes‐San‐Martin, Tomás Bauleth‐Ramos, Gésinda Geertsema‐Doornbusch, Han Gao, Mohammad‐Ali Shahbazi, Hélder A. Santos, Romana Schirhagl   +10 more
wiley   +1 more source

Extrusion Bioprinting for Wound Healing: Innovations in Functionalized Bioinks and Bioprinting Technology

Advanced Materials Technologies, EarlyView.
Extrusion‐based bioprinting (EBB) has emerged as a versatile biofabrication platform capable of precisely depositing bioinks composed of biomaterials, cells, and bioactive agents to generate patient‐specific, biomimetic skin constructs. This paper presents a state‐of‐the‐art and forward‐looking overview of EBB for wound healing, encompassing printing ...
Hien‐Phuong Le, Anh Tuan Trong Tran, Ammara Waheed, Tran Thanh Tung, Dusan Losic   +4 more
wiley   +1 more source