Ning Zhang, Jia Wu and Liwei Zhang
Math. Comp. 89 (2020), 1867-1894.
Abstract, references and article information

Yuji Nakatsukasa
Math. Comp. 89 (2020), 1843-1866.
Abstract, references and article information

A lone developer from the company that provided aerodynamic analysis for the cars in the PlayStation game Gran Turismo has applied the tooling to demonstrate the spread of germs with and without wearing a mask

Yifei Zhu
Trans. Amer. Math. Soc. 373 (2020), 3733-3764.
Abstract, references and article information

Jiangxue Fang
Trans. Amer. Math. Soc. 373 (2020), 3445-3481.
Abstract, references and article information

Kathrin Bringmann, Matthew Krauel and Michael Tuite
Trans. Amer. Math. Soc. 373 (2020), 3261-3293.
Abstract, references and article information

Jordi Pau and Antti Perälä
Trans. Amer. Math. Soc. 373 (2020), 3031-3062.
Abstract, references and article information

A. G. Kukush and O. O. Chernova
Theor. Probability and Math. Statist. 99 (2020), 125-135.
Abstract, references and article information

C. De Filippis and G. Mingione
St. Petersburg Math. J. 31 (2020), 455-477.
Abstract, references and article information

Phạm Tiến Sơn
Proc. Amer. Math. Soc. 148 (2020), 2739-2741.
Abstract, references and article information

Weimin Chen
Proc. Amer. Math. Soc. 148 (2020), 2707-2716.
Abstract, references and article information

The Government issued directions in the Gazette today to close bars and premises selling liquor for 14 days from 6pm on April 3.

The Secretary for Food & Health issued the directions in accordance with the Prevention & Control of Disease (Requirements & Directions) (Business & Premises) Regulation.

The directions include the closure of bars and pubs, as well as any part of a catering business premise or a clubhouse mainly used for the sale or supply of intoxicating liquors for consumption.

The new measures were introduced due to the emergence of 62 confirmed COVID-19 cases related to the bar and band cluster with further spread to an additional 14 cases who had not visited bars.

The Government on April 1 introduced directions on the closure of karaoke, mahjong-tin kau and nightclub establishments as well as the suspension of karaoke and mahjong-tin kau activities in catering premises and clubhouses.

It has also been reviewing the feasibility of relevant measures and will make timely adjustments according to the latest developments of the disease.

The city's annual Jazz Marathon will be held on April 25.

The all-day music event will see artists from France, India, Italy, Japan, the Mainland, Russia and the US collaborate with local musicians to create a borderless jazz soundscape.

The Day Marathon Concert will be held from 2.30pm to 6pm while the Night Marathon Concert will be held from 7.15pm to 10.45pm.

 
Ahead of the concerts, jazz workshops with the artists will be held on April 24.

Presented by the Leisure & Cultural Services Department, the events will be held at Queen Elizabeth Stadium in Wan Chai.

Tickets are available at URBTIX.

Click here for details.

The parking fees of 12 government public car parks will be frozen at their existing levels for one year from June 1, the Transport Department announced today.

In reviewing the parking fees, the department said it considered the inflation rate, private car park charges and usage of the government car parks.

Having considered the impact on the economy brought by the COVID-19 pandemic as well as the impact on usage of the car parks, the department decided to maintain the parking fees at existing levels.

The 12 car parks are Kennedy Town Car Park, Rumsey Street Car Park, Star Ferry Car Park, City Hall Car Park, Tin Hau Car Park, Shau Kei Wan Car Park, Aberdeen Car Park, Yau Ma Tei Car Park, Sheung Fung Street Car Park, Wong Tai Sin Public Transport Terminus Car Park, Kwai Fong Car Park and Tsuen Wan Car Park.

Click here for details.

Katherine S. O’Neal
Nov 1, 2016; 29:249-252
Pharmacy and Therapeutics

The digital challenger bank is now the most switched to bank in the UK as Nationwide Building Society loses its long-held top spot

(Fundação de Amparo à Pesquisa do Estado de São Paulo) Thanks to its magnetic properties, the material -- zinc-doped manganese chromite -- can be used in a range of products, from gas sensors to data storage devices.

(University of Southampton) Scientists have published highly detailed images of lab-grown neurons using Extreme Ultraviolet radiation that could aid the analysis of neurodegenerative diseases.

(University of Science and Technology of China) Researchers from University of science and technology of China has shed new lights on the topic of solid-phase ion migration. Researchers demonstrated a unique in-situ strategy for visualizing the dynamic solid-phase ion migration between nanostructures with nanogap at the atomic scale. The research article entitled "Real-Time Visualization of Solid-Phase Ion Migration Kinetics on Nanowire Monolayer" was published in Journal of the American Chemical Society on April 29th.

(Lancaster University) Lancaster University's Dr Samuli Autti has been awarded a Young Scientist Prize 2020 by the International Union of Pure and Applied Physics. The prestigious prize, awarded only once every three years, was made by the Low Temperature Commission of the IUPAP.

Claus Sorensen
Represent. Theory 24 (2020), 151-177.
Abstract, references and article information

Neoantimycins are anticancer compounds of 15-membered ring antimycin-type depsipeptides. They are biosynthesized by a hybrid multimodular protein complex of nonribosomal peptide synthetase (NRPS) and polyketide synthase (PKS), typically from the starting precursor 3-formamidosalicylate. Examining fermentation extracts of Streptomyces conglobatus, here we discovered four new neoantimycin analogs, unantimycins B–E, in which 3-formamidosalicylates are replaced by an unusual 3-hydroxybenzoate (3-HBA) moiety. Unantimycins B–E exhibited levels of anticancer activities similar to those of the chemotherapeutic drug cisplatin in human lung cancer, colorectal cancer, and melanoma cells. Notably, they mostly displayed no significant toxicity toward noncancerous cells, unlike the serious toxicities generally reported for antimycin-type natural products. Using site-directed mutagenesis and heterologous expression, we found that unantimycin productions are correlated with the activity of a chorismatase homolog, the nat-hyg5 gene, from a type I PKS gene cluster. Biochemical analysis confirmed that the catalytic activity of Nat-hyg5 generates 3-HBA from chorismate. Finally, we achieved selective production of unantimycins B and C by engineering a chassis host. On the basis of these findings, we propose that unantimycin biosynthesis is directed by the neoantimycin-producing NRPS–PKS complex and initiated with the starter unit of 3-HBA. The elucidation of the biosynthetic unantimycin pathway reported here paves the way to improve the yield of these compounds for evaluation in oncotherapeutic applications.

The transcription factor forkhead box P3 (FOXP3) is a biomarker for regulatory T cells and can also be expressed in cancer cells, but its function in cancer appears to be divergent. The role of hepatocyte-expressed FOXP3 in hepatocellular carcinoma (HCC) is unknown. Here, we collected tumor samples and clinical information from 115 HCC patients and used five human cancer cell lines. We examined FOXP3 mRNA sequences for mutations, used a luciferase assay to assess promoter activities of FOXP3's target genes, and employed mouse tumor models to confirm in vitro results. We detected mutations in the FKH domain of FOXP3 mRNAs in 33% of the HCC tumor tissues, but in none of the adjacent nontumor tissues. None of the mutations occurred at high frequency, indicating that they occurred randomly. Notably, the mutations were not detected in the corresponding regions of FOXP3 genomic DNA, and many of them resulted in amino acid substitutions in the FKH region, altering FOXP3's subcellular localization. FOXP3 delocalization from the nucleus to the cytoplasm caused loss of transcriptional regulation of its target genes, inactivated its tumor-inhibitory capability, and changed cellular responses to histone deacetylase (HDAC) inhibitors. More complex FKH mutations appeared to be associated with worse prognosis in HCC patients. We conclude that mutations in the FKH domain of FOXP3 mRNA frequently occur in HCC and that these mutations are caused by errors in transcription and are not derived from genomic DNA mutations. Our results suggest that transcriptional mutagenesis of FOXP3 plays a role in HCC.