[Integrated Analysis of Soil Organic Matter Molecular Composition Changes Under Different Land Uses].

The application of biomarkers to study the molecular composition of soil organic matter (SOM) can be used to analyze the source and degradation of SOM and reveal the stability mechanism of soil organic carbon (SOC) at the molecular level. In order to further clarify the effects of different land use patterns (farmland, grassland, and forest) on the molecular composition of SOM, the changes in molecular composition of organic matter (free lipids, cutin, suberin, and lignin) on a global scale were studied using a meta-analysis method. The results showed that there were significant differences in the molecular composition of organic matter under different land use patterns.

Collagen study advances for photoaging skin.

Background: Collagen dominates the skin's extracellular matrix (ECM). Type I collagen comprises 80%-90% of the skin's collagen, followed by type III (8%-12%) and type V (5%). Reactive oxygen species, matrix metalloproteinases, and collagen degradation all increase during photoaging, which disrupts the ECM's dynamic balance and lowers the amount of total collagen in the body.

Self-Consistent Implementation of a Solvation Free Energy Framework to Predict the Salt Solubilities of Six Alkali Halides.

To assess the salt solubilities of six alkali halides in aqueous systems, we proposed a thermodynamic cycle and an efficient molecular modeling methodology. The Gibbs free energy changes for vaporization, dissociation, and dissolution were calculated using the experimental data of ionic thermodynamic properties obtained from the NBS tables. Additionally, the Marcus' and Tissandier's solvation free energy data for Li, Na, K, Cl, and Br ions were compared with the conventional solvation free energies by substituting into our self-consistent thermodynamic cycle.

Enzyme-linked immunospot assay and metagenomic sequencing of Mycobacterium tuberculosis, coagulopathy symptoms, and pancytopenia testing for characterization of pulmonary tuberculosis: case report and literature review.

Pulmonary Tuberculosis (TB) is common in China, but tuberculosis with coagulation disorders and pancytopenia have rarely been reported in the past. In this report presented, a 70-year-old female was admitted to the hospital with poor appetite, dark urine, nausea, vomiting, fatigue, and bilateral lower limb edema; chest CT suggested diffuse infectious lesions in both lungs, coagulation dysfunction, and complete pancytopenia, which was initially considered to be caused by severe infection. However, the patient's symptoms did not improve by potent empiric antibiotics treatment, and a repeat chest CT showed that the lung lesions deteriorated more than before, and coagulation disorders and pancytopenia did not improve.

Clinical characteristics and outcomes of discharged COVID-19 patients with reoccurrence of SARS-CoV-2 RNA.

Aim: Data are limited on clinical characteristics and outcomes of recovered the 2019 coronavirus disease (COVID-19) patients with the reoccurrence of SARS-CoV-2 RNA.

Patients & Methods: Discharged patients in our hospital were included, who had recovered from COVID-19 with the reoccurrence of SARS-CoV-2 RNA.

Results: Six patients were redetectable and positive for SARS-CoV-2 RNA after discharge from 3 to 15 days.

Epidemiological and initial clinical characteristics of patients with family aggregation of COVID-19.

Background: Since December 2019, a new outbreak of the coronavirus disease 2019 (COVID-19) in Wuhan (Hubei, China) and rapidly spread throughout China, however, confirmed cases are still increasing worldwide.

Objectives: To investigate the epidemiological history and initial clinical characteristics of 10 patients with family aggregation of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in Western Chongqing, China.

Study Design: Ten patients positive for SARS-CoV-2 nucleic acid detection by real time Reverse Transcription-Polymerase Chain Reaction (RT-PCR), were collected from The People's Hospital of Dazu District, Chongqing.

The Study of Electrical Properties for Multilayer LaO/AlO Dielectric Stacks and LaAlO Dielectric Film Deposited by ALD.

The capacitance and leakage current properties of multilayer LaO/AlO dielectric stacks and LaAlO dielectric film are investigated in this paper. A clear promotion of capacitance properties is observed for multilayer LaO/AlO stacks after post-deposition annealing (PDA) at 800 °C compared with PDA at 600 °C, which indicated the recombination of defects and dangling bonds performs better at the high-k/Si substrate interface for a higher annealing temperature. For LaAlO dielectric film, compared with multilayer LaO/AlO dielectric stacks, a clear promotion of trapped charges density (N ) and a degradation of interface trap density (D ) can be obtained simultaneously.

Impacts of Annealing Conditions on the Flat Band Voltage of Alternate La2O3/Al2O3 Multilayer Stack Structures.

The mechanism of flat band voltage (VFB) shift for alternate La2O3/Al2O3 multilayer stack structures in different annealing condition is investigated. The samples were prepared for alternate multilayer structures, which were annealed in different conditions. The capacitance-voltage (C-V) measuring results indicate that the VFB of samples shift negatively for thinner bottom Al2O3 layer, increasing annealing temperature or longer annealing duration.