Precise metabolic modeling in post-omics era: accomplishments and perspectives.

Microbes have been extensively utilized for their sustainable and scalable properties in synthesizing desired bio-products. However, insufficient knowledge about intracellular metabolism has impeded further microbial applications. The genome-scale metabolic models (GEMs) play a pivotal role in facilitating a global understanding of cellular metabolic mechanisms.

Electrochromic visualization of latent fingermarks deposited on nonconductive surfaces.

Electrochromic visualization of latent fingermarks has already been achieved on conducting surfaces such as stainless steel. However, their enhancement on non-conducting surfaces such as glass electrochromism has not been reported. Considering the non-conductive nature of substrates, a layer of gold was introduced to the fingermark-bearing surfaces, in which gold was used as the cathodes to assemble electrochromic devices for visualization.

Satellite reveals a steep decline in China's CO emissions in early 2022.

Response actions to the coronavirus disease 2019 perturbed economies and carbon dioxide (CO) emissions. The Omicron variant that emerged in 2022 caused more substantial infections than in 2020 and 2021 but it has not yet been ascertained whether Omicron interrupted the temporary post-2021 rebound of CO emissions. Here, using satellite nitrogen dioxide observations combined with atmospheric inversion, we show a larger decline in China's CO emissions between January and April 2022 than in those months during the first wave of 2020.

Novel antioxidant peptides in fermented pork sausage: Purification, characterization, and cytoprotective functions on Caco-2 cells.

In this study, crude peptides from fermented sausages inoculated with Lactobacillus plantarum CD101 and Staphylococcus simulans NJ201 were initially separated by ultrafiltration and molecular-sieve chromatography. The obtained fractions with high 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity and ferric-reducing antioxidant power values (MWCO-1 and fraction A) were used in Caco-2 cells to evaluate their cytoprotective effect on oxidative damage triggered by HO. MWCO-1 and A showed slight cytotoxicity.

Record-high CO emissions from boreal fires in 2021.

Extreme wildfires are becoming more common and increasingly affecting Earth's climate. Wildfires in boreal forests have attracted much less attention than those in tropical forests, although boreal forests are one of the most extensive biomes on Earth and are experiencing the fastest warming. We used a satellite-based atmospheric inversion system to monitor fire emissions in boreal forests.

Spatiotemporal Pattern and Convergence Test of Energy Eco-Efficiency in the Yellow River Basin.

Examining the convergence characteristics of energy eco-efficiency in the Yellow River Basin (YRB) is of great significance for the sustainable development of China. It fulfills the international commitment to carbon peak and carbon neutrality. Based on the Super-EBM model and ML index, this paper measures the energy eco-efficiency of 60 cities in the YRB during 2006-2018, and then spatial and temporal patterns are both analyzed before the final investigation of the convergence in the YRB.

Can Global Value Chains Embedment Reduce Carbon Emissions Embodied in Exports?-Empirical Test Based on the Manufacturing Industries.

Active participation in the global value chains (GVC) has been recognized as an important factor in curbing the growth of carbon emissions. However, how GVC embedment affects carbon emissions in economies and what are the pathways of its impact need to be further studied. This paper analyzes the mechanism of GVC embedment affecting carbon emissions embodied in exports (CEEE) and selects 17 manufacturing industries in 36 economies around the world for empirical testing.

Two-Dimensional Decoupling and Decomposition Analysis of CO Emissions from Economic Growth: A Case Study of 57 Cities in the Yellow River Basin.

Precise decoupling of CO emission and economic development holds promise for the sustainability of China in a post-industrialization era. This paper measures the energy-related CO emissions of 57 cities in the Yellow River Basin (YRB) during 2006-2019 and analyzes their decoupling states and dynamic evolution paths based on the derived general analytical framework of two-dimensional decoupling states to decompose their decoupling index using the LMDI method. The results show that (1) from 2006 to 2019, the economic growth and CO emissions of cities along the YRB are dominated by weak decoupling at an average contribution of 53.

Effect of oxidation on the process of thermal gelation of chicken breast myofibrillar protein.

In this study, the effect of protein oxidation on the thermal gelation of chicken breast myofibrillar proteins (MPs) was investigated. MP samples treated with different degrees of oxidation were heated (1.5 °C/min) to different end-point temperatures to simulate the thermal gelation process.

Understanding the unbalance of interest in taxi market based on drivers' service profit margins.

Unlabelled: Nowadays, ride-hailing services have been established as a part of the urban transportation. Their arrival has remade the profit structure and resulted in the unbalance of interest in taxi market. Here, we establish the service models of taxis, carpooling, and car-hailing under "Internet +" from the perspective of profit margins, to perform a comparative analysis among the different services.

A comparative study of volatile components in Dianhong teas from fresh leaves of four tea cultivars by using chromatography-mass spectrometry, multivariate data analysis, and descriptive sensory analysis.

Dianhong teas produced from fresh leaves of different tea cultivars (YK is Yunkang No. 10, XY is Xueya 100, CY is Changyebaihao, SS is Shishengmiao), were compared in terms of volatile compounds and descriptive sensory analysis. A total of 73 volatile compounds in 16 tea samples were tentatively identified.

[Impact of Marine-atmospheric Process on Aerosol Number Size Distribution in the South China Sea].

The shipboard measurements of aerosol number concentration from August 28th to October 13th, 2012 were conducted to analyze the characteristics of temporal-spatial distribution and number size distribution of marine aerosol in the South China Sea. The impact of meteorological condition on the marine aerosol was also analyzed in this paper. The result showed that the temporal-spatial distribution and number size distribution of marine aerosol were influenced by the backward trajectory of the air masses and the time they spent over the sea, and the meteorological conditions in the local sea area such as wind speed, wind direction, temperature, relative humidity and cloud cover.