Results 111 to 120 of about 490,177 (259)

Outcomes of Penetrating Keratoplasty with Imported Donor Corneas

open access: yes, 2009
Purpose. To analyze factors influencing the surgical success of penetrating keratoplasty and long-term graft survival when using imported donor corneas. Methods.
胡芳蓉;王一中   +1 more
core  

Robotic Assistants in the Operating Room: A Systematic Review of Vision‐Based Systems for Nonoperative Tasks

open access: yesAdvanced Robotics Research, EarlyView.
This review brings together 20 publications describing 11 robotic system families developed for instrument handling, sterile‐package opening, supply delivery, and operating room logistics. Perception is becoming more capable through deep learning and language‐guided control, but autonomy remains limited, evidence is largely laboratory‐based, and no ...
Eugenia Mawuenya Akpo   +4 more
wiley   +1 more source

Copper‐Driven Epithelial Barrier Disruption: A Novel Mechanism of COPD Acute Exacerbations Mediated by the TNF‐α/ATP7A Axis

open access: yesAdvanced Science, EarlyView.
This study reveals a copper‐driven mechanism of COPD acute exacerbations mediated by the TNF‐α/ATP7A axis. TNF‐α suppresses the copper transporter ATP7A via competitive NF‐κB/CREB1/CBP signaling, resulting in intracellular copper accumulation, mitochondrial oxidative stress, and epithelial barrier disruption.
Xinru Xiao   +7 more
wiley   +1 more source

BAP31 Drives Cartilage Calcification through Disruption of Autophagosome–Lysosome Fusion in Osteoarthritis

open access: yesAdvanced Science, EarlyView.
Mechanical stress activates BAP31 in chondrocytes. BAP31 competes with ATG14 for binding to STX17, disrupting the STX17–ATG14 complex required for autophagosome–lysosome fusion. The resultant autophagic flux blockade drives the generation of autophagy‐derived exosomes, which mediate pathological cartilage calcification in OA. Chondrocyte‐targeted BAP31
Zhi‐hua Xu   +13 more
wiley   +1 more source

Absorption, assimilation, and diffusion of imported technology in Pakistan : a case study of the textile and pharmaceutical industries

open access: yes, 1983
Meeting: Absorption and Diffusion of Imported Technology, 26-30 Jan. 1981, Singapore, SGMeeting: Research and Policy Workshop on Technology Problems for the Caribbean, 13 Nov.-10 Dec.
Ali, Firasat, Khan, J.A.
core   +1 more source

Implementation of a Composite Reference Standard Methodology in the Greek National Malaria Reference Center, Insights from a Seven-Year Experience

open access: yesPathogens
Background: Malaria is currently ranked as an important public health issue in Greece despite its initial eradication back in 1974. Given that the clinical picture is often nonspecific, the need for the implementation of targeted laboratory methodologies
Nikolaos Tegos   +10 more
doaj   +1 more source

Innate Immunocompetent hiPSC‐Derived Neurospheroids Capture Early CNS Responses to rAAV

open access: yesAdvanced Science, EarlyView.
Knowledge of human CNS immune responses to AAV‐based gene therapies remains limited due to the lack of immune‐competent human models. Here, a hiPSC‐derived 3D neuroimmune platform integrating neurospheroids and microglia is established using stirred‐tank bioreactors.
Catarina M. Gomes   +14 more
wiley   +1 more source

Imported Willow Leaf Beetle

open access: yes, 2021
A fact sheet on the imported willow leaf beetle, a tree pest in Virginia ...
Dary, Eric R., Dellinger, Theresa A.
core  

Phase Diagrams and Piezoelectric Properties of Wurtzite Al1−x−yScxGdyN Heterostructural Alloys

open access: yesAdvanced Science, EarlyView.
This study demonstrates ferroelectricity and piezoelectric properties improvement of quaternary wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films, guided by density functional theory calculations. Wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films have a high optical bandgap, enhanced piezoelectric ...
Julia L. Martin   +11 more
wiley   +1 more source

Trade Models with Heterogeneous Firms: What About Importing? [PDF]

open access: yes
Intermediate goods make up a large share of world trade. Yet trade models with heterogeneous firms focus almost exclusively on firms’ export decisions rather than their import decisions.
Graciano, Tim, Gibson, Mark
core  

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