Publications by authors named "W G Quint"
Article Synopsis
- Mixed carcinomas, which represent about 10% of penile carcinomas, consist of multiple distinct histological subtypes, categorized by the World Health Organization (WHO) into two groups based on their HPV association.
- The study aimed to detect HPV genotypes in these mixed tumors, revealing a higher HPV positivity rate (46%) in carcinomas with warty/basaloid features compared to a low rate (7%) in non-warty/basaloid types.
- HPV16 was the most commonly identified genotype (65%), and the presence of HPV-associated morphology above 20% in mixed tumors is critical for classification as HPV-associated, in accordance with WHO guidelines.
We demonstrate efficient subthermal cooling of the modified cyclotron mode of a single trapped antiproton and reach particle temperatures T_{+}=E_{+}/k_{B} below 200 mK in preparation times shorter than 500 s. This corresponds to the fastest resistive single-particle cyclotron cooling to subthermal temperatures ever demonstrated. By cooling trapped particles to such low energies, we demonstrate the detection of antiproton spin transitions with an error rate <0.
View Article and Find Full Text PDFWe demonstrate a new temperature record for image-current mediated sympathetic cooling of a single proton in a cryogenic Penning trap by laser-cooled ^{9}Be^{+}. An axial mode temperature of 170 mK is reached, which is a 15-fold improvement compared to the previous best value. Our cooling technique is applicable to any charged particle, so that the measurements presented here constitute a milestone toward the next generation of high-precision Penning-trap measurements with exotic particles.
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- Active surveillance is increasingly being used instead of excisional treatment for younger women with cervical intraepithelial neoplasia grade 2 due to high regression rates and lower risk of preterm birth associated with surveillance.* -
- The study examined HPV type-specific persistence/progression in 455 women aged 23 to 40 who were diagnosed with cervical intraepithelial neoplasia grade 2 at Aarhus University Hospital between 2000 and 2010, highlighting the need for early identification of women at risk.* -
- Results indicated that over half (52.2%) of the participants exhibited persistent or progressive disease, emphasizing the importance of monitoring HPV types to assess risk during active surveillance.*
We present a fluorescence-detection system for laser-cooled 9Be+ ions based on silicon photomultipliers (SiPMs) operated at 4 K and integrated into our cryogenic 1.9 T multi-Penning-trap system. Our approach enables fluorescence detection in a hermetically sealed cryogenic Penning-trap chamber with limited optical access, where state-of-the-art detection using a telescope and photomultipliers at room temperature would be extremely difficult.
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