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This study focuses on the Litopenaeus vannamei shrimp, exploring its development, dilemmas, and challenges in China's industry alongside countermeasures implemented by Chinese authorities and agencies. Since its introduction to China in 1988, L. vannamei, known for its high economic value and adaptability, has become China's leading mariculture shrimp species and one of the most significant globally. The thriving L. vannamei industry has boosted economic gains and job creation in China's marine fisheries, supplied high-quality protein to consumers, and fostered socio-economic growth. Additionally, China's experiences and lessons in the L. vannamei industry serve as valuable references for other shrimp-farming nations, promoting global industry health. Despite its success, the industry faces challenges, including germplasm resource scarcity, feed ingredient shortages, disease management, and wastewater treatment. To address these issues, China has initiated various strategies, including germplasm resource conservation, the development of low-fishmeal protein feeds, disease monitoring, and wastewater management, aiming for the industry's green and sustainable evolution. This paper asserts that China's initiatives in advancing the L. vannamei industry offer significant inspiration globally, particularly in two main areas: Firstly, through effective policy support, China has fostered research and development of new shrimp varieties suited to its aquaculture conditions, enhancing germplasm quality and breeding efficiency. Secondly, China has actively disseminated its innovations, outcomes, and experiences globally, hosting various aquaculture training sessions and seminars. These initiatives offer technical support and platforms for international dialogue, fostering cooperation and exchange among shrimp farming nations. Moreover, China's dedication to advancing artificial culture technology for L. vannamei--through collaborative and continuous research across breeding, nutrition, disease management, and sustainability--has led to significant industry advancements. These contributions not only extend the industry chain but also position China as a leader and model for global shrimp aquaculture innovation. Through this study, we aim to offer insights and practical advice by analyzing the challenges and responses within China's L. vannamei industry. We hope these findings will serve as valuable references for enhancing the global shrimp aquaculture industry and aid other nations in their aquaculture endeavors. [ABSTRACT FROM AUTHOR]

With the development of building seismic isolation technology and the official release of the Isolation Code in September 2021, seismic isolation design in China will now rely on two foundational codes: the Seismic Code and the Isolation Code. This paper take a ceramic jar storage of the RC frame structure as the research object, and carry out the seismic isolation design based on the separated calculation design method of the Seismic Code and the unitary calculation design method of the Isolation Code respectively, and clarify the control index of the Isolation Code is the story drift angle. The maximum displacement is reduced by 37.5%. In terms of material consumption, the Isolation Code leads to a 5.94% decrease in concrete usage, accompanied by a 13.97% increase in steel consumption, resulting in an overall cost increase of 4.98%. The findings indicate that seismic isolation design, guided by the Isolation Code, substantially mitigates the seismic response of the superstructure. The damage extent to structural members is reduced by 15–20%, promoting enhanced safety and repairability. The outcomes of this study offer valuable insights for future seismic isolation designs in RC frame structures. [ABSTRACT FROM AUTHOR]

Objective: This study aimed to measure the parameters of the proximal femur in the older people of Inner Mongolia, China and understand the influence of age and gender so as to provide guidance for the design and improvement of prosthesis for total hip arthroplasty. Methods: A total of 236 patients who underwent CT angiography of lower limbs in the Department of Imaging, Affiliated Hospital of Inner Mongolia Medical University of China were collected. They were divided into 4 groups according to age: < 60 (group A), 60–69 (group B), 70–79 (group C), and > 80 years (group D). Four anatomical parameters, including femoral head diameter (FHD), femoral neck-shaft angle (FNSA), femoral offset (FO), femoral neck anteversion (FNA), were measured by Mimics 21.0. Comparisons were made between age groups of the same gender and between genders in the same age group to analyze the correlation of the 4 parameters of proximal femur with age and gender. In addition, the results of this study were compared with previous studies. Results: There were no significant differences in FHD and FO between age groups, indicating no correlation with age. FNSA and FNA were no significantly different between group C and group D in the same gender, whereas there were significant differences between other age groups and were negatively correlated with age. There were significant differences in FHD and FO between genders in the same age group, with the males being larger than the females. FNSA and FNA were no significant differences between genders in the same age group. Conclusions: FNSA and FNA decrease with age. FHD and FO were larger in males than in females in all age groups. Age and gender should be considered in the design of prosthesis. [ABSTRACT FROM AUTHOR]

In China, Trapa quadrispinosa (also called water caltrop) has long been used as a function food and folk medicine to treat diabetes mellitus for years. In the present study, the extract of T. quadrispinosa pericarp (TQPE) which mainly contains hydrolysable tannins was prepared to investigate the potential therapeutic action in nonalcoholic fatty liver disease (NAFLD) mice induced by high fat-diet (HFD). After the administration of TQPE (15, 30 mg/kg/day) for 8 weeks, the increased weight of body and liver were significantly suppressed. TQPE also ameliorated liver lipid deposition and reduced lipids parameters of blood in mice. Moreover, TQPE attenuated oxidative stress and showed a hepatoprotective effect in mice. TQPE was also found to decrease the value of homeostatic model assessment for insulin resistance. In addition, TQPE administration increased the phosphorylation of AMP-activated protein kinase (AMPK) and Acetyl-CoA carboxylase (ACC) and inhibited sterol regulatory elementbinding protein (SREBP) in the liver tissue. Meanwhile, TQPE elevated insulin receptor substrate-1 (IRs-1) and protein kinase B (Akt) phosphorylation. These results reflected that, as a nature product, TQPE is a potential agent for suppressing the process of NAFLD via regulation of the AMPK/SREBP/ACC and IRs-1/Akt pathways. [ABSTRACT FROM AUTHOR]

Background: Ancient Di-Qiang people once resided in the Ganqing region of China, adjacent to the Central Plain area from where Han Chinese originated. While gene flow between the Di-Qiang and Han Chinese has been proposed, there is no evidence to support this view. Here we analyzed the human remains from an early Di-Qiang site (Mogou site dated ∼4000 years old) and compared them to other ancient DNA across China, including an early Han-related site (Hengbei site dated ∼3000 years old) to establish the underlying genetic relationship between the Di-Qiang and ancestors of Han Chinese. Results: We found Mogou mtDNA haplogroups were highly diverse, comprising 14 haplogroups: A, B, C, D (D*, D4, D5), F, G, M7, M8, M10, M13, M25, N*, N9a and Z. In contrast, Mogou males were all Y-DNA haplogroup O3a2/P201; specifically one male was further assigned to O3a2c1a/M117 using targeted unique regions on the non-recombining region of the Y-chromosome. We compared Mogou to 7 other ancient and 38 modern Chinese groups, in a total of 1793 individuals and found that Mogou shared close genetic distances with Taojiazhai (a more recent Di-Qiang population), Hengbei and Northern Han. We modeled their interactions using Approximate Bayesian Computation and support was given to a potential admixture of ∼13-18% between the Mogou and Northern Han around 3300-3800 years ago. Conclusions: Mogou harbors the earliest genetically identifiable Di-Qiang, ancestral to the Taojiazhai and up to ∼33% paternal and ∼70% of its maternal haplogroups could be found in present-day Northern Han Chinese. [ABSTRACT FROM AUTHOR]

To reach the goal of becoming carbon neutral, there is a necessity to optimize the cold logistics due to its huge energy consumption and waste. Here, the life cycle assessment method was used to calculate the carbon emissions at each step of the fruit and vegetable cold chain. Based on the energy balance equation, the refrigerated transportation methods and carbon emissions under different transportation times was studied. The results show that the carbon emission of 1 kg of fruits and vegetables in the cold logistics is 0.098 kg: In this carbon emission, the transportation step accounts for 82%, while the emission of the pre-cooling step, storage (sales) step and consumption (abandonment) step account for 7%, 6% and 5%, respectively. If the transportation time is within 5 h, the pre-cooled fruits and vegetables are best to be transported by insulated transportation. If the transportation time is between 5 and 60 h, the preferable transportation method is the cold storage transportation. Moreover, 70 kg of cold storage agent is needed per cubic meter when the latent heat of the cold storage agent is 270 kJ/kg. Comparing the cold storage transportation with the mechanical refrigerated transportation, the transportation time is less than 87 h (1.5tons) and 98 h (10tons), that is the cold storage transportation has lower carbon emission. We also found that the driving carbon emission of a 1.5tons small refrigerated truck is three times that of a 10tons heavy refrigerated truck. In order to reduce the carbon emission in the transportation step, a smaller shape factor H, a cold storage agent with a large phase change latent heat and a thicker insulation layer have been suggested. ● The CO 2 emission of three different transportation types was calculated during the cold chain. ● The time used to decide on the transportation type was provided during the cold chain based on the CO 2 emission ● The method to reduce the CO 2 emission of the transportation step has been suggested. [ABSTRACT FROM AUTHOR]