Results 91 to 100 of about 1,593,608 (336)

Two-photon transitions driven by a combination of diode and femtosecond lasers

open access: yes, 2012
We report on the combined action of a cw diode laser and a train of ultrashort pulses when each of them drives one step of the 5S-5P-5D two-photon transition in rubidium vapor.
Aumiler   +11 more
core   +1 more source

Age and gender effects on echocardiographic and histopathological cardiac phenotypes in healthy adult mice

open access: yesAnimal Models and Experimental Medicine, EarlyView.
This study investigated the impact of age and sex on cardiac phenotypes in healthy adult C57BL/6J mice using echocardiography and histopathological analyses. Findings revealed that female mice demonstrated more pronounced global cardiac chamber dilation during aging.
Shuang Wen   +6 more
wiley   +1 more source

Doppler evaluation of endometrial polyps

open access: yesThe Egyptian Journal of Radiology and Nuclear Medicine, 2018
Introduction: Endometrial polyps are a common cause of abnormal uterine bleeding. Ultrasound is the most accepted investigation to evaluate them. However, the diagnosis can be difficult and even missed on transabdominal and grayscale imaging.
Saika Amreen   +4 more
doaj   +1 more source

Localization Accuracy of Ultrasound-Actuated Needle with Color Doppler Imaging

open access: yesDiagnostics, 2020
An ultrasonic needle-actuating device for tissue biopsy and regional anaesthesia offers enhanced needle visibility with color Doppler imaging. However, its specific performance is not yet fully determined.
Tingyi Jiang   +7 more
doaj   +1 more source

The characteristics of collagen‐induced rheumatoid arthritis in macaques and the changes of heart

open access: yesAnimal Models and Experimental Medicine, EarlyView.
The disease progression in CIA macaques was categorized into three stages: IIR (days 14–34): The indicators related to rheumatoid arthritis and the levels of immunoglobulin were all elevated. There was a small amount of joint effusion, edema and mild synovial hyperplasia. No joint swelling was observed by naked eye.
Lei Zhang   +8 more
wiley   +1 more source

Astrocytic Mitochondria Transplantation Rescues Neuron Loss and Dendritic Injuries in Acute Cerebral Ischemic Stroke Mouse Model by Flexibly Regulating Mitochondria Dynamics

open access: yesAnnals of Neurology, EarlyView.
Objective Cerebral ischemic stroke causes neuronal oxygen/energy deprivation, disrupting mitochondrial function including reduced membrane potential and bioenergetics, exacerbating neuronal injury. Mitochondrial defects are, therefore, a central neuropathological node and potential therapeutic target.
Ning Bian   +9 more
wiley   +1 more source

Color Doppler Imaging in Hyperthroidism

open access: yesEurasian Journal of Medicine, 2019
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Selami Suma   +4 more
doaj  

Color Doppler US and tri-phasic CT in differentiating benign from malignant portal vein thrombosis (PVT)

open access: yesThe Egyptian Journal of Radiology and Nuclear Medicine, 2015
Objective: To evaluate the efficacy of color Doppler US and tri-phasic CT in discriminating benign from malignant PVT. Patients and methods: This study included 30 patients presented ultrasonically with PVT and referred for color Doppler US and Tri ...
Atef H. Teama   +3 more
doaj   +1 more source

Liposomal Delivery of L‐2‐Hydroxyglutarate for Targeting Epigenetic Dysregulation in Osteoarthritis

open access: yesAdvanced NanoBiomed Research, EarlyView.
Osteoarthritis involves cartilage degeneration, inflammation, and epigenetic dysregulation. A liposomal formulation of the TET1 inhibitor L‐2‐hydroxyglutarate to overcome rapid joint clearance was developed. The formulation showed good physicochemical properties, reduced inflammatory and catabolic gene expression in chondrocytes, and alleviated ...
Denise Murgia   +10 more
wiley   +1 more source

Influence of Wall Deformation Structure on the Liquid Film Flow Behavior Under Turbulent Conditions

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To explore the influence of typical wall deformation structure in the scrubbing‐cooling tube on the liquid film, this paper studied the liquid film flow behavior on the riblet walls with representative riblet radii and compared them with the flat wall. Under different liquid film Reynolds numbers (Rel = 8.3 × 103 ~ 3.14 × 104), the liquid film
Qian Liu   +5 more
wiley   +1 more source

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