Archive

This animal study compared rat liver and blood serum enzyme activities after a total two-hour exposure to low-intensity 900 MHz electromagnetic fields delivered as either a single or fractional schedule. The authors report that creatine kinase (liver and serum) and serum alkaline phosphatase were the most sensitive…

This case report describes a 30-year-old male admitted with intermittent fresh blood expectoration for three days and later found to have a small bleeding site on the posterior surface of the left tonsil. The authors diagnosed spontaneous tonsillar hemorrhage. They report successful management using low-temperature…

This study develops and tests a theoretical model of how HeLa cells aggregate when exposed to a uniform AC electric field. Model-derived aggregation times and predicted string-length growth rates matched numerical simulation, and experiments observed substantial clustering in the chamber. The work is framed as…

This case report describes a 24-year-old woman with a rare pleomorphic adenoma of the nasal septum. The tumor was identified on CT imaging, diagnosed by incisional biopsy, and removed endoscopically with histology confirming pleomorphic adenoma. The report focuses on clinical management rather than evaluating…

This animal study reports that combined static (42 μT) and very weak alternating (250 nT) magnetic fields can modulate the duration of metamorphosis in Tenebrio molitor pupae depending on the alternating-field frequency. A shorter pupal stage was reported at 4.4 Hz, an inhibiting effect at 32.2 Hz, and no noticeable…

The paper reviews and analyzes mechanisms for resonance action of extremely weak alternating magnetic fields (40 nT) combined with weak static fields (40 μT), tuned to cyclotron frequencies. It references prior reports of narrow resonant peaks in electrical conductivity of aqueous solutions and biomedical effects in…

This single-institution cohort compared radiofrequency-assisted laparoscopic liver resection with open resection over 5 years (47 vs 87 patients). Laparoscopy was associated with lower blood loss and similar 5-year overall and disease-free survival compared with open surgery. The authors conclude the laparoscopic…

This prospective clinical study followed patients with lumbar radiculopathy from contained disc herniations treated with radiofrequency-assisted micro-tubular decompression and nucleotomy. Among those with 4-year follow-up, pain scores improved substantially and most respondents reported satisfaction with quality of…

This engineering study assesses the risk of failure of composite high-voltage insulators in desert environments where sand accumulation and moisture can create conductive layers and leakage currents. Using realistic Sinai sand grain size and salinity data and an ABB composite insulator as a case study, the authors…

This paper presents an engineering approach for real-time ECG signal processing on a mobile phone with remote transmission to a medical center. The method uses an IIR low-pass filter and Hilbert transform to support R-peak detection and arrhythmia alerting. Reported algorithm performance includes 96.97% sensitivity…

This engineering-focused paper reports the design principle and performance of a MALDI ion source ("MALDI-2") combining rarefied supersonic gas jets with weak electric fields and injection into gas-filled RF multipoles. The abstract reports rapid collisional cooling (

This study evaluated a fractional radiofrequency microneedle system for treating facial atrophic acne scars in Asian subjects over 1-, 3-, and 6-month follow-up after three monthly sessions. Of 26 completers, the most common self-reported improvement category at 6 months was 26–50% improvement, and scar volume…

This prospective randomized study compared submucosal resection (SMR) with radiofrequency turbinate volume reduction (RFTVR) in 60 patients with inferior turbinate hypertrophy. Both procedures significantly reduced turbinate volume and improved nasal obstruction symptoms and nasal inspiratory peak flow by 2 months.…

This animal study examined whether pre-exposure to radiofrequency radiation (from a GSM mobile phone) alters survival after subsequent Escherichia coli infection. The abstract reports higher survival in the group receiving both RF pre-exposure and bacterial challenge than in the group receiving only the bacterial…

This paper presents a two-compartment computational model of CA3 pyramidal neurons to investigate how extracellular electric fields influence neuronal behavior via ephaptic transmission. The model is matched to subthreshold experimental responses at rest and used to analyze how DC and sinusoidal fields affect…

This retrospective study evaluated liver lesion conspicuity during real-time MR-guided radiofrequency applicator placement using spoiled GRE and balanced SSFP MRI sequences in a 1.5 T scanner. Lesion detectability categories and contrast-to-noise ratio (CNR) were compared for hepatocellular carcinoma and liver…

This study reports implementation of a passive RFID system to passively track patient flow in a radiation therapy clinic using readers/antennae in linac vault areas. Across 4302 treatment fractions from 144 patients, the system achieved about 70% read reliability and enabled comparison of median in-vault treatment…

This prospective interventional study randomized 60 patients with inferior turbinate hypertrophy to bipolar radiofrequency-assisted versus microdebrider-assisted turbinoplasty (30 per group). Both groups showed significant postoperative symptom improvement through 6 months. Three recurrences were reported at 6 months…

This qualitative case study (2011) describes a pilot mobile phone-based management information system for neglected tropical disease control in Tanzania, where village health workers used phones with web-based software to capture data at source. The study reports improved routine work efficiency and increased…

This study tested noninvasive 13.56 MHz radiofrequency electric fields as a treatment adjunct for pancreatic ductal adenocarcinoma in cell lines and mouse xenograft models. The authors report RF exposure caused cytotoxicity in PDAC cells via autophagy (not apoptosis) and that normal pancreatic ductal epithelial cells…