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Satellite‐based Fire radiative power (FRP) retrievals are used to track wildfire activity but are sometimes not possible or have large uncertainties. Here, we show that weather radar products including composite and base reflectivity and equivalent rainfall integrated in the vicinity of the fires show strong correlation with hourly FRP for multiple fires during 2019–2020. Correlation decreases when radar beams are blocked by topography and when there is significant ground clutter (GC) and anomalous propagation (AP). GC/AP can be effectively removed using a machine learning classifier trained with radar retrieved correlation coefficient, velocity, and spectrum width. We find a power‐law best describes the relationship between radar products and FRP for multiple fires combined (0.67–0.76 R2). Radar‐based FRP estimates can be used to fill gaps in satellite FRP created by cloud cover and show great potential to overcome satellite FRP biases occurring during extreme fire events. The radiant energy emitted by wildfires (FRP) is an important variable that controls many aspects of the smoke plume including the amount of emission released into the atmosphere and how high it travels. Biomass burning debris, which are large particles generated by combustion, can be suspended in the atmosphere along with smoke. Weather radars can detect and retrieve information from these large particles, which can be used for a variety of applications. In this work, we show that retrievals from weather radars can be used to estimate FRP with reasonable results. Echoes associated with ground artifacts affect these results but can be effectively screened using machine learning algorithms trained on manually selected data of representative plume and non‐plume cases. Satellite FRP can often be missing or underpredicted especially for extreme fire events, and thus this technique offers an alternative way to provide a more accurate depiction of fire evolution that can be used to predict smoke impacts. Weather radar products integrated in the vicinity of fires can be used to estimate Fire radiative power (FRP) through a power‐law relationshipThe relationships between FRP and radar products are skillful only after removing artifacts using a machine learning classifierRadar‐based FRP has potential to fill gaps and overcome satellite FRP biases occurring during extreme fire events Weather radar products integrated in the vicinity of fires can be used to estimate Fire radiative power (FRP) through a power‐law relationship The relationships between FRP and radar products are skillful only after removing artifacts using a machine learning classifier Radar‐based FRP has potential to fill gaps and overcome satellite FRP biases occurring during extreme fire events

To gain insight into lunar surface charging in the magnetic anomaly regions, we present the results of laboratory experiments with a flowing plasma engulfing a magnetic dipole field above an insulating surface. When the dipole moment is perpendicular to the surface, large positive potentials (close to ion flow energies in eV) are measured on the surface in the dipole lobe regions, charged by the unmagnetized ions while the electrons are magnetically excluded. The potential decreases exponentially with distance from the surface on the ion (flow) Debye length scale. The surface potentials become much smaller when the dipole moment is parallel to the surface, likely due to collisionality. We discuss the implications of our laboratory results for the lunar surface charging in the magnetic anomaly regions, suggesting that the surface potential may be much higher than the generally expected several volts positive due to photoemission. Positive surface potentials are measured within magnetic dipole fieldsPotentials decrease with distance from surface on the ion Debye length scaleLarge positive potentials may form on lunar surface in magnetic anomaly regions

The article focuses on postage stamps of France from 1900 to 1907.

The article focuses on the postal issues in Sudan.

A reprint of the article "Trinidad," by C. A. Howes, which appeared in the July 23, 1928 issue of "Mekeel's & Stamps MAGAZINE" is presented.

In a program aimed at the development of neurokinin antagonists, N-[(R,R)-(E)-1-(3,4-dichlorobenzyl)-3-(2-oxoazepan-3-yl)carbamoyl]allyl-N-methyl-3,5-bis(trifluoromethyl)benzamide (1, DNK333) has been discovered as a potent and balanced neurokinin (tachykinin) NK1/NK2 receptor antagonist. Enantiomerically pure (>99.5% ee) 1 can be prepared in 6 + 1 synthetic steps starting from commercially available optically active BOC-d-3,4-dichlorophenylalanine in an overall yield of ca. 25−30%. 1 showed potent affinities to cloned human NK1 (pKi = 8.38) and NK2 (pKi = 8.02) receptors. When 1 was compared to the other possible three diastereoisomers, it could be demonstrated that only the R,R-isomer (1) exhibits potent and balanced affinity for the cloned human NK1 and NK2 receptors. 1 exhibited favorable pharmacokinetic properties in guinea pigs following oral administration and demonstrated in vivo activity in pharmacological models of substance P- and neurokinin A (NKA)-induced bronchoconstriction in guinea pigs after intravenous and in squirrel monkeys after oral application.

Offers information on an article on stamps which appeared in the January 31, 1903 issue of 'Mekeel's Weekly.'

Chronic administration of cimetidine was found to produce a fall in steady-state plasma concentrations of chlorpromazine and of indomethacin in patients. In each case there was some evidence of inhibition of metabolism, suggesting that the mechanism must therefore be decreased absorption sufficient to over-ride the metabolic change. This was confirmed by measurement of excretion of metabolites in the indomethacin study. The fall in indomethacin plasma concentrations was not associated with a change in the clinical effectiveness of the anti-inflammatory therapy.

This paper considers in detail the government's Land Register Scheme. Land Registers were established under the Local Government Planning and Land Act 1980 and aim to bring unused and underused public land holdings into use. The background of the initiative, its method of operation and the nature of the information it provides is outlined. In particular, this paper looks at the unique information on public sector land holdings that has been provided as a result of the Land Register Scheme.

The article discusses the history of a number of Chinese Imperial Customs stamps.

The article offers a historical account of China and its postage stamps.

The article offers brief information about the history of China and its stamps.

This section looks back at an article published in the August 16, 1926 issue of "Mekeel's Weekly" regarding several postage stamps from Hawaii. It offers information on the so-called Missionary Stamps, Numeral Stamps, the Nova Scotia stamp and the Hawaiian Numerals by the late Henry J. Crocker. It discusses the public competition for stamp designs held in October 1893 in the island.

Examines the differences in the portraits of Queen Victoria on postage stamps.

Describes postage stamp series issued by Newfoundland.

The article focuses on the Centennial Envelope stamp of 1878 representing the first settlement of Tasmania.

The article provides historical information on the postage stamps of Orange Free State in South Africa. The first printing of the stamps took place on March 19, 1900 in three values. On August 10, 1900, stamps overprinted with Orange River Colony were issued and surcharged. On October 1904, a special design with the head of King Edward was employed, the name of the colony appearing in a banderole of three loops above the vignette.

The article offers information on the stamps of the former Orange River Colony, formerly Orange River Free State of South Africa. A background history on the formation of the Orange River Free State is provided. The stamps were ordered from De La Rue & Co. of London. They were printed in sheets of 240 and were similar to regular British Colonial productions.

Reprints the article "Notes on British North America: Prince Edward Island," by C. A. Howes, which appeared in the April 29, 1905 issue of the journal "Mekeel's Weekly."

Presents information on the first postage stamps issued in British Columbia and Vancouvers Island.

Gives advice on collecting stamps for beginners.

Presents an article about the interest in collecting stamps.

Pays tribute to stamp collector L. L. Green.

A new method for the stereocontrolled synthesis of 2,3,3‐trisubstituted cyclohexanones such as (VIII) is reported.