ABSTRACT: On 25 October 2013, the Sun emitted two significant solar flares. The first solar flare, classified X1.7, peaked at 08:01 UT. The second one, X2.1, peaked at 15:03 UT and was accompanied by ...

6 Best HF Antennas for 2025 to Boost Your Ham Radio Signal Anywhere Links to the best HF Antennas are listed down below: 6. Moonraker Ltd GPA-80 5. DX Engineering XB-5 Hexx Beam HF Antenna 4. Foul ...

In this comprehensive systematic review of randomized controlled trials, which included a total number of 471 patients, torsemide significantly reduced HF and CV-related hospital readmissions compared ...

HF results in pulmonary and peripheral edema due to a decrease in cardiac output and retention of free water by the renal tubules. This fluid retention causes dyspnea, orthopnea and fatigue leading to ...

Raspberry Pi Zero 2 W-based 3-antenna switch for HF (100W), controlled via Flask. Uses ANMBEST 4-channel relay (active HIGH), Freenove Breakout Board HAT, and SO-239s in a DXE-UE-2P box with Alpha ...

[My Ham Radio Journey] wanted to see if a “common person” (in his words) could build an effective vertical ham radio antenna. If you look at the video below, the answer is apparently yes. He started ...

Background: Patients with ischemic heart failure (IHF) often undergo myocardial viability assessment to help determine the appropriate treatment strategy, whether revascularization or medical therapy.

Introduction: Magnetic particle imaging (MPI), a radiation-free, dynamic, and targeted imaging technique, has gained significant traction in both research and clinical settings worldwide.