Abstract Purpose Salmonella enterica serovar Typhi, the etiological agent of typhoid fever, causes a systemic life-threatening disease. To carry out successful infection process, this bacterium needs to survive alkaline and acid pH conditions presented in mouth, stomach, small intestine, gallbladder. Therefore, work, genetic screening identify S . Typhi genes involved circumneutral resistance w...

The current understanding of aqueous secondary organic aerosol (aqSOA) formation is based largely on laboratory investigations of very simple surrogate cloud water solutions that aid mechanistic understanding of aqueous oxidation but may not accurately reflect the influence of the complex ambient matrix present in authentic cloud waters on organic chemistry. In this study, unaltered ambient clo...

Business cycles are substantially correlated across countries. Yet, most existing models are not able to generate substantial transmission through international trade. We show that the nature of such transmission depends fundamentally on the features determining the responsiveness of labor supply and labor demand to international relative prices. We augment a standard international macroeconomi...

A strictly aerobic, Gram-staining-negative, rod-shaped, non-motile, yellow-pigmented bacterial strain, designated BX12(T), was isolated from soil collected from the peak area of Wudang Mountain in the city of Shiyan, Hubei province, China. Phylogenetic analysis of the 16S rRNA gene sequences showed that strain BX12(T) was most closely related to Flavobacterium subsaxonicum WB 4.1-42(T) (95.9% 1...

The cloud condensation nuclei (CCN) activity and aerosol chemical composition were concurrently measured via a scanning mobility CCN analyzer (SMCA) an Aerodyne Time-of-Flight Aerosol Chemical Speciation Monitor (ACSM), respectively, during wintertime 2022 in Beijing, China. During the observation period, mean number concentrations ranged from 1345 ± 1270 cm−3 at SS = 0.1% to 3267 2325 0.3%. cr...

Abstract. Amines were measured by aerosol mass spectrometry (AMS) and Fourier transform infrared (FTIR) spectroscopy during the North Atlantic Aerosols Marine Ecosystems Study (NAAMES) cruises. Both AMS non-refractory (NR) amine ion fragments comprising CxHyNz family FTIR non-volatile (NV) primary (C–NH2) groups typically had greater concentrations in continental air masses than marine masses. ...

Abstract. Water-soluble and water-insoluble organic aerosol (WSOA WIOA) constitute a large fraction of fine particles in winter northern China, yet our understanding their sources processes are still limited. Here we have comprehensive characterization WSOA cold season Beijing. Particularly, present the first mass spectral WIOA by integrating online offline measurements from high-resolution spe...