Scaling and networking a modular photonic quantum computer.

Photonics offers a promising platform for quantum computing, owing to the availability of chip integration for mass-manufacturable modules, fibre optics for networking and room-temperature operation of most components. However, experimental demonstrations are needed of complete integrated systems comprising all basic functionalities for universal and fault-tolerant operation. Here we construct a (sub-performant) scale model of a quantum computer using 35 photonic chips to demonstrate its functionality and feasibility.

Non-invasive [O]HO PET measurements of cerebral perfusion and cerebrovascular reactivity using an additional heart scan.

Obtaining the arterial input function (AIF) is essential for quantitative regional cerebral perfusion (rCBF) measurements using [O]HO PET. However, arterial blood sampling is invasive and complicates the scanning procedure. We propose a new non-invasive dual scan technique with an image derived input function (IDIF) from an additional heart scan.

Limited Benefit of Routine Clinical Follow-Up for Relapse Detection in Diffuse Large B-Cell Lymphoma Patients in Complete Remission Following First-Line Treatment.

Despite advances in treatment, approximately 15% of patients with diffuse large B-cell lymphoma (DLBCL) who achieve complete remission (CR) after first-line therapy will experience a relapse. However, there is no consensus on the optimal follow-up strategies for detecting relapse after achieving CR. This population-based study, based on the Danish Lymphoma Registry (LYFO), identified a total of 1634 patients diagnosed with DLBCL between 2010 and 2017, including 105 patients who achieved CR following first-line R-CHOP-like therapy and subsequently relapsed.

Identification of Cannabis Product Characteristics and Pricing on Dark Web Markets.

Growing cannabis use has made it the most widely cultivated and trafficked illicit drug globally according to the World Health Organization, with 147 million people consuming cannabis-derived products (CDPs) in various product forms and constituency. Despite restrictions in certain countries, unregulated access can still be found on the dark web which specializes in trafficking of illicit goods. The objective was to systematically collect data from multiple marketplaces to identify types of cannabis products offered for sale.