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Rocket exhibit at National Space Centre pulls off unintentional NASA SLS impression
The National Space Centre in England took things a little too far with its simulation of a rocket launch, unless it was seeking to recreate NASA's leaking Space Launch System (SLS) via a plastic bottle and some water. The Leicester-based museum features exhibits aplenty, including some rockets to gawp at, an intriguing parafoil-equipped Gemini capsule, a planetarium, and lots of interactive stations to educate and inform visitors about the space age. Some of those interactive exhibits can,...
Ergodicity and Measurements In Static and Dynamic Light Scattering
Announce Type: replace Abstract: Static Light Scattering (SLS) and Dynamic Light Scattering (DLS) are very important techniques to study the characteristics of nano-particles in dispersion. The data of SLS is determined by the optical characteristic and the measured values of DLS are determined by optical and hydrodynamic characteristics of different size nano-particles. In general, the nano-particles investigated are considered to be cross-linked soft particles or hyper-branched chains with...
IMA++: ISIC Archive Multi-Annotator Dermoscopic Skin Lesion Segmentation Dataset
Announce Type: replace Abstract: Multi-annotator medical image segmentation is an important research problem, but requires annotated datasets that are expensive to collect. Dermoscopic skin lesion imaging allows human experts and AI systems to observe morphological structures otherwise not discernable from regular clinical photographs. However, currently there are no large-scale publicly available multi-annotator skin lesion segmentation (SLS) datasets with annotator-labels for dermoscopic...
Target Updates May Stabilize Linear Q-Learning: Periodic and Soft Dynamics
arXiv:2606.02645v1 Announce Type: cross Abstract: Periodic target updates in Q-learning and soft target updates in actor-critic methods are empirically well established stabilization mechanisms, but their precise theoretical explanation is still incomplete. This paper gives a rigorous and exact analysis of these mechanisms for Q-learning with linear function approximation (linear Q-learning) using the exact switched linear system (SLS) dynamics induced by the Bellman maximum and the joint...
NASA reveals Artemis 3 astronaut crew
NASA reveals Artemis 3 astronaut crew The quartet will fly to Earth orbit next year to test docking techniques and procedures ahead of a planned moon landing in 2028. HOUSTON — NASA has announced the astronauts who will launch to space on the Artemis 3 mission next year. The international crew consists of three spaceflight veterans and one first-time spaceflyer, all with backgrounds specially suited for their upcoming mission.
Connor McDavid car collection: Supercars, luxury garage & lifestyle
With 2026 winding down Connor McDavid is still one of the most recognizable names in the NHL and his love of luxury cars is still a topic of conversation. The captain of the Edmonton Oilers has made a name for himself as one of hockey’s best players, and his garage reflects his passion for speed, performance and premium engineering. Fans are growing more interested in McDavid’s lifestyle and car choices as he continues to lead the Edmonton Oilers and earn one of the highest salaries in the NHL.
De novo mutation of an RNA virus is increased in the presence of engineered synonymous mutations that disrupt RNA structural elements
Using a combination of methods including selective 2?-hydroxyl acylation analyzed by primer extension sequencing (SHAPE-Seq), a complete RNA structure map of the cucumber mosaic virus (CMV) RNA 3 segment was mapped (Watters et al. (2018) Nucleic Acids Research 46, 2573?2584). To explore the effect of structural perturbations on genomic stability, infectious mutants were engineered to contain changes in one of four open reading frame (ORF) stem-loop (SL) structures SL1362, SL1439, SL1745 and...
The LD_DEBUG environment variable (2012)
The LD_DEBUG environment variable Originally published 23 April 2012, updated 10 September 2019 (add link to troubleshooting tool), updated 18 October 2019 (moved to Jekyll), updated 3 April 2023 with links to other tools Development of large systems using many shared (dynamically) loaded libraries can sometimes lead to some frustrating bugs that are difficult to diagnose. These bugs often arise because there a few different versions of libraries on the system and the “wrong” version gets...
Is this the next Artemis crew? A look at the astronauts on NASA's shortlist
Is this the next Artemis crew? A look at the astronauts on NASA's shortlist It's a long list, but there are some front runners. NASA is about to reveal the astronauts who will launch to space on the Artemis 3 mission.
50 best oral care products, tested and reviewed
For some, oral care is like making dinner: Most people aren’t thrilled by the idea of it but you have to do it every day. You can order takeout when you’re out of meal ideas, but you can’t phone in brushing your teeth.