Subnatural-Linewidth Polarization-Entangled Photon Pairs with Controllable Temporal Length

We demonstrate an efficient experimental scheme for producing polarization-entangled photon pairs from spontaneous four-wave mixing (SFWM) in a laser-cooled $^{85}$Rb atomic ensemble, with a bandwidth (as low as 0.8 MHz) much narrower than the rubidium atomic natural linewidth. By stabilizing the relative phase between the two SFWM paths in a Mach-Zehnder interferometer configuration, we are able to produce all four Bell states. These subnatural-linewidth photon pairs with polarization entanglement are ideal quantum information carriers for connecting remote atomic quantum nodes via efficient light-matter interaction in a photon-atom quantum network.Comment: Title changed, published version, 5 pages + 3 pages Supplemental Materia

Robust Multi-Layer Energy Management and Control Methodologies for Reefer Container Park in Port Terminal

The full electrification of ports is a promising prospect for saving energy and reducing greenhouse gas emissions. The control scheme of the reefer container is particularly important for the energy management of the port, as the operation of the reefer container is one of the main energy consumers of ports. This paper proposes a reefer container hierarchical control scheme that contains a day-ahead module and intra-day module which is used to generate a rough scheduling strategy based on forecast data and fine-tuning the strategy, respectively. The final strategy should realize the economical operation while ensuring that each reefer container does not exceed the temperature limit during operation. Numerical analysis on the reefer container park with 200 and 850 containers using the Time of Use (TOU) tariff and super-peak tariff is fully analyzed. In the case of 200 containers, the proposed method helps reduce operating costs by about 14.7%, and 18% in the scenario of 850 containers. The proposed method can effectively save container operating costs and ensure that the internal temperature of the container does not exceed the limit while changing the distribution of energy which could help alleviate the peak load problem of the port electric system

Aeromonas veronii Infection in Cultured Channel Catfish, Ictalurus punctatus, in Southwest China

Aeromonas spp. are ubiquitous inhabitants of aquatic ecosystems, and are increasingly being reported as important pathogens for aquatic and terrestrial animals, as well as humans. A common bacterial disease caused by A.veronii has appeared in cultured channel catfish producing symptoms of erythema, hemorrhages, skin ulcers and high mortality (˃30%) in China, causing great economic loss. From 2007 to 2013, diseased channel catfish, Ictalurus punctatus, displaying symptoms of septicemia, ulceration, or abdominal dropsy were collected from Southwestern China. The goals of this study were to identify the bacterial strains isolated from diseased fish and to determine the susceptibility of the pathogenic strains to many currently available antimicrobial agents. 18 bacterial isolates were obtained from diseased fish. Based on phenotypic characteristics and 16S rRNA gene sequence analysis, all isolates were identified as A. veronii. These results indicate that the microbiological risk posed by A. veronii is considerable for channel catfish cultured in Southwestern China. Susceptibility of the isolates to antibiotics was tested using the agar dilution method. All 18 A. veronii isolates were sensitive to florfenicol, norfloxacin and chloramphenicol, and were resistant to cefradine, clindamycin, midecamycin, penbritin, and amoxicillin. There were sensitivity diversities of the 18 A. veronii isolates to other test antibiotics such as sulfamethoxazole, deoxycycline, gentamycin, tobramycin, and more. This in vitro study provides enough data to recommend the use of these antibiotics for treating infectious diseases caused by A. veronii

<i>CircZBTB46</i> Protects Acute Myeloid Leukemia Cells from Ferroptotic Cell Death by Upregulating SCD

Circular RNAs (circRNAs) have been shown to be closely linked to the tumorigenesis and treatment response of hematological malignancies. However, the biological functions and clinical implications of circRNAs in acute myeloid leukemia (AML) remain largely unknown. CircRNA microarray datasets were analyzed to screen differentially expressed circRNAs in AML patients. It was found that circZBTB46 was significantly upregulated in AML patients and AML cells. Moreover, the expression of circZBTB46 was associated with the stages of AML patients and showed high sensitivity and specificity for diagnosing AML. Silencing of circZBTB46 inhibited AML cell proliferation and induced cell cycle arrest. Importantly, the depletion of circZBTB46 notably increased ferroptosis and enhanced RSL3-induced ferroptosis in AML cells. Mechanistically, circZBTB46 upregulated the expression of stearoyl-CoA desaturase 1 (SCD) possibly by acting as a miRNA sponge. Finally, the circZBTB46 knockdown repressed the tumor growth of AML in vivo. In conclusion, circZBTB46 protects AML cells from ferroptosis and promotes the proliferation by upregulating SCD, thus suggesting that circZBTB46 may be a potential therapeutic target for AML