Publications by authors named "P B Hamal"

Time-resolved second harmonic generation (SHG) microscopy is used to investigate the physicochemical interactions between positively charged, hydrophobic, drug-like molecules and the plasma membrane of human cells (nonsmall cell lung cancer, H596). In the present study, molecular adsorption and transport of the cationic molecules, malachite green (MG) and malachite green isothiocyanate (MGITC), are studied in real time in living H596 cells and in dead, fixed H596 cells. MGITC is shown to have stronger adsorption and more rapid transport kinetics as compared to MG due to increased dipole-dipole interactions.

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We present measurements of the atmospheric depth of the shower maximum X_{max}, inferred for the first time on an event-by-event level using the surface detector of the Pierre Auger Observatory. Using deep learning, we were able to extend measurements of the X_{max} distributions up to energies of 100 EeV (10^{20}  eV), not yet revealed by current measurements, providing new insights into the mass composition of cosmic rays at extreme energies. Gaining a 10-fold increase in statistics compared to the fluorescence detector data, we find evidence that the rate of change of the average X_{max} with the logarithm of energy features three breaks at 6.

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Introduction: Cardiopulmonary resuscitation (CPR) is an evidence-based intervention that saves lives. In low- and middle-income countries like Nepal, the occurrence of the problem and its outcome are seldom studied. The study aims to highlight the prevalence, performance, and outcome of CPR in government hospitals of Nepal.

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Background: A bibliometric analysis was performed to map the current status and development trends in medical research in Nepal. It aims to visualize research hotspots within this field and provide effective guidance for future research directions.

Methods: A systematic search of the Scopus database was performed to identify high-cited papers (HCPs) on medical research in Nepal between January 1, 1994, and December 31, 2023.

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Article Synopsis
  • - Invasive Paget's disease of the nipple (IPDN) is a rare breast cancer characterized by aggressive tumor growth localized to the nipple, often requiring histopathological confirmation due to vague symptoms.
  • - An 82-year-old female presented with a tender, inflamed right nipple, leading to an excision that revealed both Paget's disease and underlying ductal carcinoma in situ, along with signs of IPDN through small foci of dermal invasion.
  • - Research indicates that while dermal invasion by Paget cells has minimal impact on clinical outcomes, cases with deep invasion pose risks for lymphatic spread, necessitating thorough clinical assessment and histopathological evaluation for effective treatment.
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