Effect of Continuous Care on Postpartum Anxiety among Primipara Mothers in China

Objective:The purpose of this study was to evaluate the effect of continuous care on postpartum anxiety in primipara mothers in China.Methods:A quasi-experimental,non-equivalent control group design was employed.The initial screening involved 120 primipara women from two hospitals in Shandong Province.Based on the inclusion criteria,60 eligible primipara mothers were selected to participate in the study.Results:The findings indicated that continuous care significantly reduced the anxiety levels of primipara mothers,as shown by a marked decrease in the scores on a researcher-developed anxiety scale.Conclusion:Continuous care has been proven to be an effective intervention for alleviating postpartum anxiety in Chinese primipara mothers and has a positive impact on their mental health and postpartum recovery.

Enlightenment from the COVID-19 Pandemic:The Roles of Environmental Factors in Future Public Health Emergency Response

The coronavirus disease 2019(COVID-19)pandemic is challenging the current public health emergency response systems(PHERSs)of many countries.Although environmental factors,such as those influencing the survival of viruses and their transmission between species including humans,play important roles in PHERSs,little attention has been given to these factors.This study describes and elucidates the roles of environmental factors in future PHERSs.To improve countries’capability to respond to public health emergencies associated with viral infections such as the COVID-19 pandemic,a number of environmental factors should be considered before,during,and after the responses to such emergencies.More specifically,to prevent pandemic outbreaks,we should strengthen environmental and wildlife protection,conduct detailed viral surveillance in animals and hotspots,and improve early-warning systems.During the pandemic,we must study the impacts of environmental factors on viral behaviors,develop control measures to minimize secondary environmental risks,and conduct timely assessments of viral risks and secondary environmental effects with a view to reducing the impacts of the pandemic on human health and on ecosystems.After the pandemic,we should further strengthen surveillance for viruses and the prevention of viral spread,maintain control measures for minimizing secondary environmental risks,develop our capability to scientifically predict pandemics and resurgences,and prepare for the next unexpected resurgence.Meanwhile,we should restore the normal life and production of the public based on the“One Health”concept,that views global human and environmental health as inextricably linked.Our recommendations are essential for improving nations’capability to respond to global public health emergencies.

Combined QTL mapping,GWAS and transcriptomic analysis revealed a candidate gene associated with the timing of spring bud flush in tea plant(Camellia sinensis)

Dear Editor,The timing of the spring bud f lush(TBF)is a crucial agro-nomic trait for the tea plant,as it strongly influences the yield and economic value of harvested fresh tea leaves.The TBF of tea plant is generally defined as the date when>30%of the growing tender shoots have reached the stage of one bud with one to three leaves,referred as to the stage of one and a bud,two and a bud,and three and a bud,respectively.

国内区块链典型应用研究综述

作为比特币的底层技术,区块链已被广泛应用到各个领域中,区块链应用成为当前研究的热点。研究结合中国知网数据库期刊论文分析我国学者在区块链领域的研究现状,并对金融、供应链、医疗、教育、能源互联网5个典型领域的研究进行综述,分析了区块链未来在这些领域的研究发展方向,最后讨论了区块链应用面临的挑战。

Pyopneumothorax caused by Parvimonas micra and Prevotella oralis:a case report

Parvimonas is a group of Grampositive bacteria that are common anaerobic cocci in the oral cavity and the gastrointestinal tract and one of the pathogens of periodontitis,,^([1])and Prevotella is a group of Gramnegative anaerobic bacteria that are found mainly in the oral cavity and intestinal tract and are mainly involved in periodontal infections.

Mechanical design and analysis of bio-inspired reentrant negative Poisson’s ratio metamaterials with rigid-flexible distinction

Aiming at achieving tunable reentrant structures with rigidity and uniformity,respectively,the C-shaped and S-shaped reentrant metamaterials were proposed by the bionic design of animal structures.Utilizing beam theory and energy methodology,the analytical expressions of the equivalent elastic modulus of the metamaterials were derived.Differences in deformation modes,mechanical properties,and energy absorption capacities were characterized by using experiments and the finite element analysis method.The effects of ligament angle and thickness on the mechanical characteristics of two novel metamaterials were investigated by using a parametric analysis.The results show that the stiffness,deformation mode,stress-strain curve,and energy absorption effects of three metamaterials are significantly different.This design philosophy can be extended from 2D to 3D and is applicable at multiple dimensions.

Cross-sectional network analysis of plasma proteins/metabolites correlated with pathogenesis and therapeutic response in acute promyelocytic leukemia

The treatment of PML/RARA+acute promyelocytic leukemia(APL)with all-trans-retinoic acid and arsenic trioxide(ATRA/ATO)has been recognized as a model for translational medicine research.Though an altered microenvironment is a general cancer hallmark,how APL blasts shape their plasma composition is poorly understood.Here,we reported a cross-sectional correlation network to interpret multilayered datasets on clinical parameters,proteomes,and metabolomes of paired plasma samples from patients with APL before or after ATRA/ATO induction therapy.Our study revealed the two prominent features of the APL plasma,suggesting a possible involvement of APL blasts in modulating plasma composition.One was characterized by altered secretory protein and metabolite profiles correlating with heightened proliferation and energy consumption in APL blasts,and the other featured APL plasma-enriched proteins or enzymes catalyzing plasma-altered metabolites that were potential trans-regulatory targets of PML/RARA.Furthermore,results indicated heightened interferon-gamma signaling characterizing a tumor-suppressing function of the immune system at the first hematological complete remission stage,which likely resulted from therapy-induced cell death or senescence and ensuing supraphysiological levels of intracellular proteins.Overall,our work sheds new light on the pathophysiology and treatment of APL and provides an information-rich reference data cohort for the exploratory and translational study of leukemia microenvironment.

Accelerating the establishment of a new science-policy panel to address the triple planetary crisis

he triple planetary crisis—climate change,biodiversity loss,and pollution—threatens planetary health.In response to these challenges,the Intergovernmental Panel on Climate Change(IPCC)was established in 1988,followed by the formation of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services(IPBES)in 2012.Ongoing global initiatives through IPCC and IPBES have significantly advanced scientific understanding,raised public awareness,and informed policy-making in relation to climate change and biodiversity loss.However,pollution remains a pressing concern in all three crises.

Characterization,occurrence,environmental behaviors,and risks of nanoplastics in the aquatic environment:Current status and future perspectives

Microplastics(MPs)are emerging contaminants that have attracted worldwide attention in recent years.Compared with MPs,nanoplastics(NPs)may exhibit greater toxicity and higher potential risks because of their unique physiochemical nanoscale properties.However,the environmental fate,ecosystem toxicity,and potential risks associated with NPs have been less explored.This study summarizes the current research status of NPs through a comprehensive bibliometric analysis.The research hotspots and future trends of NPs were identified.We comprehensively searched the Web of Science Core Collection scientific database from its inception(2004)to November 26,2020.The results showed that the number of papers on NPs has increased significantly since 2014.The keywords used in NP research were divided into three clusters.Cluster 1 related to the physical,chemical,and biological behaviors of NPs in aquatic environments.Cluster 2 represented a relatively new and hot research field concerning the exposure,accumulation,and toxicity of NPs in organisms.Cluster 3 corresponded to the identification and quantification of NPs in marine environments and sediments.Moreover,we systematically elaborated the main areas of NP research,such as the characterization,occurrence,environmental behavior,ecological toxicity,and human health risks of NPs.The results showed that the quantification of NPs at environmentally relevant concentrations remains a challenge.Most studies have investigated polystyrene NPs,spherical NPs,and NPs in marine environments,while few studies have examined the aggregation,deposition,and ecological toxicity of NPs under environmentally relevant conditions.In addition,much less is known about the human health risks associated with NPs because little research has been conducted on estimating the overall human exposure to NPs and its effect.Finally,the current challenges and future perspectives of NP research are discussed.