Evolution and spatiotemporal analysis of earthquake public opinion based on social media data

As critical conduits for the dissemination of online public opinion,social media platforms offer a timely and effective means for managing emergencies during major disasters,such as earthquakes.This study focuses on the analysis of online public opinions following the Maduo M7.4 earthquake in Qinghai Province and the Yangbi M6.4 earthquake in Yunnan Province.By collecting,cleaning,and organizing post-earthquake Sina Weibo(short for Weibo)data,we employed the Latent Dirichlet Allocation(LDA)model to extract information pertinent to public opinion on these earthquakes.This analysis included a comparison of the nature and temporal evolution of online public opinions related to both events.An emotion analysis,utilizing an emotion dictionary,categorized the emotional content of post-earthquake Weibo posts,facilitating a comparative study of the characteristics and temporal trends of online public emotions following the earthquakes.The findings were visualized using Geographic Information System(GIS)techniques.The analysis revealed certain commonalities in online public opinion following both earthquakes.Notably,the peak of online engagement occurred within the first 24 hours post-earthquake,with a rapid decline observed between 24 to 48 hours thereafter.The variation in popularity of online public opinion was linked to aftershock occurrences.Adjusted for population factors,online engagement in areas surrounding the earthquake sites and in Sichuan Province was significantly high.Initially dominated by feelings of“fear”and“surprise”,the public sentiment shifted towards a more positive outlook with the onset of rescue operations.However,distinctions in the online public response to each earthquake were also noted.Following the Yangbi earthquake,Yunnan Province reported the highest number of Weibo posts nationwide;in contrast,Qinghai Province ranked third post-Maduo earthquake,attributable to its smaller population size and extensive damage to communication infrastructure.This research offers a methodological approach for the analysis of online public opinion related to earthquakes,providing insights for the enhancement of post-disaster emergency management and public mental health support.

Water Quality Evaluation and Analysis on the Causes of Pollution for Groundwater Sources in Yantai, China

Based on the investigation for the 14 groundwater sources, the water quality of the groundwater sources had been analyzed, using the evaluation method of the combination of inorganic and organic index instead of the traditional method which was only based on inorganic index. The results showed that the quality of 12 groundwater sources satisfied class III standard of groundwater quality and other two exceeded class III standard. There were one groundwater source, whose water quality reached class 1 standard, and five groundwater sources, whose water quality reached class II standard. There were seven groundwater sources, in which the fluorine, an organic pollutant, was detected. The results showed that the groundwater resources in Yantai City were less polluted and the main pollutant in groundwater was nitrate. According to the analytical data and the environmental conditions of groundwater sources, the conclusion was drawn that the agriculture and rural non-point pollution were the main reasons of groundwater pollution.

A serum metabolomic analysis for diagnosis and biomarker discovery of primary biliary cirrhosis and autoimmune hepatitis

Because of the diversity of the dinical and laboratory manifestations, the diagnosis of autoimmune liver disease （AILD） remains a challenge in clinical practice. The value of metabolomics has been studied in the diagnosis of many diseases. The present study aimed to determine whether the metabolic profiles, based on ultraperformance liquid chromatography-mass spectrometry （UPLC-MS）, differed between autoimmune hepatitis （AIH） and primary biliary cir- rhosis （PBC）, to identify specific metabolomic markers, and to establish a model for the diagnosis of AIH and PBC. METHODS： Serum samples were collected from 20 patients with PBC, 19 patients with AIH, and 25 healthy individuals. UPLC-MS data of the samples were analyzed using principal component analysis, partial least squares discrimination analysis and or- thogonal partial least squares discrimination analysis. RESULTS： The partial least squares discrimination analysis model （R2y=0.991, Q2=0.943） was established between the AIH and PBC groups and exhibited both sensitivity and speci- ficity of 100%. Five groups of biomarkers were identified, in- eluding bile acids, free fatty acids, phosphatidylcholines, lyso- lecithins and sphingomyelin. Bile acids significantly increased in the AIH and PBC groups compared with the healthy con- trol group. The other biomarkers decreased in the AIH andPBC groups compared with those in the healthy control group. In addition, the biomarkers were downregulated in the AIH group compared with the PBC group. CONCLUSIONS： The biomarkers identified revealed the pathophysiological changes in AILD and helped to discrimi- nate between AIH and PBC. The predictability of this method suggests its potential application in the diagnosis of AILD.

Single-nucleotide polymorphisms of HLA and Polygonum multiflorum-induced liver injury in the Han Chinese population

BACKGROUND Polygonum multiflorum is one of the leading causes of herb-induced liver injury in China.HLA-B*35:01 is reported to be a potential biomarker of Polygonum multiflorum-induced liver injury(PM-DILI).However,little is known about the relationship between single-nucleotide polymorphisms(SNPs) and PM-DILI.AIM To identify SNPs that indicate susceptibility to PM-DILI METHODS We conducted a systematic study enrolling 382 participants from four independent hospitals,including 73 PM-DILI patients,118 patients with other drug-induced liver injury(other-DILI) and 191 healthy controls.Whole-exome sequencing was performed for 8 PM-DILI patients and 8 healthy controls who were randomly selected from the above subjects.Nineteen SNPs that showed high frequencies in the 8 PM-DILI patients were selected as candidate SNPs and then screened in 65 PM-DILI patients,118 other-DILI patients and 183 healthy controls using the MassARRAY system.HLA-B high-resolution genotyping was performed for the 73 PM-DILI and 118 other-DILI patients.The Han-MHC database was selected as a population control for HLA-B analysis.P <6.25 x 103 after Bolferroni correction was considered significant.RESULTS The frequencies of rslll686806 in the HLA-A gene,rs1055348 in the HLA-B gene,and rs202047044 in the HLA-DRB1 gene were significantly higher in the PM-DILI group than in the control group [27.2% vs 11.6%,P=1.72×105,odds ratio(OR)=3.96,95% confidence interval(Cl):2.21-7.14;42.5% vs 8.6%,P=1.72×10-19 OR=13.62,95% CI:7.16-25.9;22.9% vs 8.1%,P=4.64×106,OR=4.1,95% CI:2.25-7.47].Only rs1055348 showed a significantly higher frequency in the PM-DILI group than in the other-DILI group(42.5% vs 13.6%,P=1.84×10-10,OR=10.06,95% Cl:5.06-20.0),which suggested that it is a specific risk factor for PM-DILI.rs1055348 may become a tag for HLA-B*35:01 with 100% sensitivity and 97.7% specificity in the PM-DILI group and 100% sensitivity and 98.1% specificity in the other-DILI group.Furthermore,HLA-B*35:01 was confirmed to be associated with PM-DILI with a frequency of 41.1% in the PM-DILI group compared with 11.9%(P=4.30×10-11,OR=11.11,95% CI:5.57-22.19) in the other-DILI group and 2.7%(P=6.22×10-166,OR=62.62,95% Cl:35.91-109.20) in the Han-MHC database.CONCLUSION rslll686806,rs1055348,and rs202047044 are associated with PM-DILI,of which,rs1055348 is specific to PM-DILI.As a tag for HLA-B*35:01,rs1055348 may become an alternative predictive biomarker of PM-DILI.

A Clinical Investigation on Garlicin Injectio for Treatment of Unstable Angina Pectoris and Its Actions on Plasma Endothelin and Blood Sugar Levels

To investigate the therapeutic effects and mechanisms of garlicin for treatment of unstable angina pectoris (UAP), garlicin injectio was intravenously dripped 60 mg/day in 34 cases for 10 days. Nitroglycerine was used in 21 cases of the control group. The results showed that the total effective rates in improving symptoms and electrocardiogram after garlicin treatment were respectively 82% and 62%, and that the plasma endothelin and blood sugar levels were markedly lowered in cases with hyperglycemia.

Clinical Study on Treatment of Chronic Renal Failure with Shenshuailing

The therapeutic effects of Shenshuailing Kou Fu Ye (SKFY [symbol: see text], the Oral Liquid for Renal Failure) and Shenshuailing Guan Chang Ye (SGCY [symbol: see text], the Enema for Renal Failure) were evaluated in treatment of chronic renal failure, with coateg aldehyde oxystarch as the controls. The changes in the clinical symptoms, serum creatinine, blood urea nitrogen and creatinine clearance rate were observed. The total effective rate in the former was 90.46%, and the latter 60.43%.

The Analysis and Remediation Technology of the Pollution of the Groundwater Environment in Longkou Plain, China

In order to study the groundwater environment in the Longkou plain,48 groups of water samples are collected,consisting of 7 groups of surface water samples and 41 groups of groundwater samples.The quality of groundwater in the Longkou Plain is poor,with class V water quality accounting for more than 90%,and no class I,II water quality,sporadic distribution of Class III and IV water quality.The influencing factors of water quality are mainly inorganic indicators such as nitrate,total hardness,chloride,salinity and sulfate,the detection rate of heavy metals is low.Nitrate is the main pollution index in this area,and the increase of nitrate content is closely related to the construction of underground reservoir.Based on the characteristics of groundwater pollution in the Longkou Plain,the in-situ chemical remediation of groundwater pollution is proposed.

Application of Transcriptomics in the Analysis of Community Structure of Food Fermented with Lactic Acid Bacteria

Revealing the structural characteristics,succession changes and functional genes of the microbial community in lactic acid bacteria-fermented food has been the focus of scientific research and industrial production for many years.In recent years,high-throughput sequencing technology has become an important tool for the research of lactic acid bacteria-fermented food microorganisms due to its advantages of high efficiency and being relatively cheap.In this paper,starting from the research on the genome,transcriptome and metabonomic levels of high-throughput sequencing technology,we reviewed the progress of transcriptomics in the study on microbial community structure,interaction,and functional gene mining of lactic acid bacteria-fermented food,and analyzed and discussed the main problems and development trends it faces,providing a certain reference for the scientific research and industrial production of fermented food in the future.

铜绿假单胞菌氨基糖苷类药物产酶耐药机制研究

目的了解我院临床分离的30株多重耐药铜绿假单胞菌中16SrRNA甲基化酶基因及氨基糖苷类修饰酶（AMEs）基因存在状况。方法收集山东和江苏两地医院临床分离的铜绿假单胞菌共50株（山东烟台多重耐药30株，江苏泛耐株20株），采用聚合酶链反应（PCR）及序列分析的方法分析6种16SrRNA甲基化酶（armA、rmtA、rmtB、rmtC、rmtD、npmA）和6种AMEs基因aac（3）．Ⅰ、aac（3）-Ⅱ、aac（6’）-Ⅰb、aac（6’）-Ⅱ、ant（3″）-Ⅰ和ant（2″）-Ⅰ。结果山东烟台30株多重耐药铜绿假单胞菌中4种基因aac（3）-Ⅱ、aac（6＇）-Ⅱ、ant（3″）-Ⅰ和ant（2″）-Ⅰ的阳性株数分别为6株（20％）、14株（46．7％）、11株（36．7％）和1株（3.3％），其余8株基因均为阴性；AMEs基因总阳性率为50％（15／30）。江苏20株泛耐株中6种基因rmtB、aac（3）-Ⅱ、aac（6＇）-Ⅰb、aac（6’）-Ⅱ、ant（3’r）-Ⅰ和ant（2″）-Ⅰ的阳性株数分别为11株（55％）、12株（60％）、7株（35％）、12株（60％）、10株（50％）和9株（45％），其余6株基因均为阴性；AMEs基因总阳性率为95％（19／20）。结论铜绿假单胞菌存在16SrRNA甲基化酶基因为国内首次报道；铜绿假单胞菌AMEs基因携带率很高；二家医院检出酶基因种类有差别。

Exploration for the Priority of HIV Intervention:Modelling Health Impact and Cost-Effectiveness—Six Cities,Eastern China,2019-2028

Introduction:In order to enhance the effectiveness of resource allocation,regions must tailor their responses to their specific epidemiological and economic situations.Methods:Utilizing Spectrum software,we projected the cost-effectiveness of 10 chosen HIV interventions in six cities in eastern China from 2019 to 2028.We assessed three scenarios—Base,Achievable,and Idealized—for each city.The analysis included the projected number of HIV infections and deaths averted,as well as the incremental costeffectiveness ratios for each intervention in the six cities.Results:In Shijiazhuang,Wuxi,Yantai,and Zhenjiang,cities with initially low antiretroviral therapy(ART)coverage,ART showed significant effectiveness,especially for males.Conversely,in Foshan and Ningbo,where ART coverage was notably high,oral pre-exposure prophylaxis(PrEP)for men who have sex with men(MSM)proved effective in the Idealized scenario.MSM outreach,ART for males,and ART for females demonstrated cost-effectiveness across all six cities in both Achievable and Idealized scenarios at the predefined thresholds for each city.Discussion:Maintaining an appropriate coverage rate for outreach to MSM can lead to costeffectiveness.In cities with low ART coverage,scaling up ART remains a crucial intervention.In regions with high ART coverage,consideration may be given to the utilization of oral PrEP for MSM individuals,requiring budget allocation.

CSF Aβ1-42 level is associated with cognitive decline in early Parkinson’s disease with rapid eye movement sleep behavior disorder

Background:Rapid eye movement sleep behavior disorder(RBD)is associated with cognitive decline in early Parkinson’s disease(PD).However,the underlyling basis for this association remains unclear.Methods:Parkinson’s Progression Marker’s Initiative(PPMI)subjects underwent baseline RBD testing with RBD sleep questionnaire(RBDSQ).Serial assessments included measures of motor symptoms,non-motor symptoms(NMS),neuropsychological assessment,blood and cerebrospinal fluid(CSF)biomarkers.Up to three years follow-up data were included.We stratified early PD subjects into PD with RBD(RBDSQ score>5)and PD without RBD groups.Then,we evaluated baseline biomarkers in each group as a predictor of cognitive decline using Montreal Cognitive Assessment(MoCA)score changes over three years in regression models.Results:Four hundred twenty-three PD subjects were enrolled at baseline,and a total of 350 PD subjects had completed 3 years of study follow-up with completely serial assessments.We found that at baseline,only CSF β-amyloid 1–42(Aβ1–42)was significantly lower in PD subjects with RBD.On three years follow-up analysis,PD subjects with RBD were more likely to develop incident mild cognitive impairment(MCI)and presented greater cognitive decline in MoCA score.Lower baseline CSF Aβ1–42 predicted cognitive decline over 3 years only in PD subjects with RBD(β=−0.03,P=0.003).A significant interaction between Aβ1–42 and the 2 groups confirmed that this effect was indeed higher in PD with RBD than the other individual(β=−2.85,P=0.014).Conclusion:These findings indicate that CSF Aβ1–42 level is associated with global cognitive decline in early PD with RBD.The addition of CSF Aβ1–42 to RBD testing increase the likelihood of identifying those at high risk for cognitive decline in early PD.

A virus-derived siRNA activates plant immunity by interfering with ROS scavenging

Virus-derived small interference RNAs(vsiRNAs)not only suppress virus infection in plants via induction of RNA silencing but also enhance virus infection by regulating host defensive gene expression.However,the underlying mechanisms that control vsiRNA-mediated host immunity or susceptibility remain largely unknown.In this study,we generated several transgenic wheat lines using four artificial microRNA expression vectors carrying vsiRNAs from Wheat yellow mosaic virus(WYMV)RNA1.Laboratory and field tests showed that two transgenic wheat lines expressing amiRNAI were highly resistant to WYMV infection.Further analyses showed that vsiRNAI could modulate the expression of a wheat thioredoxin-like gene(TaAAEDI),which encodes a negative regulator of reactive oxygen species(ROS)production in the chloroplast.The function of TaAAEDI in ROS scavenging could be suppressed by vsiRNAI in a dose-dependent manner.Furthermore,transgenic expression of amiRNAI in wheat resulted in broad-spectrum disease resistance to Chinese wheat mosaic virus,Barley stripe mosaic virus,and Puccinia striiformis f.sp.tritici infection,suggesting that vsiRNAI is involved in wheat immunity via ROS signaling.Collectively,these findings reveal a previously unidentified mechanism underlying the arms race between viruses and plants.

Is ApoE ɛ 4 a good biomarker for amyloid pathology in late onset Alzheimer’s disease?

Amyloid plaques are pathological hallmarks of Alzheimer’s Disease(AD)and biomarkers such as cerebrospinal fluid(CSF)β-amyloid 1–42(Aβ1-42)and amyloid positron emission tomographic(PET)imaging are important in diagnosing amyloid pathology in vivo.ɛ4 allele of the Apolipoprotein E gene(ApoEɛ4),which is a major genetic risk factor for late onset AD,is an important genetic biomarker for AD pathophysiology.It has been shown that ApoEɛ4 is involved in Aβdeposition and formation of amyloid plaques.Studies have suggested the utility of peripheral blood ApoEɛ4 in AD diagnosis and risk assessment.However it is still a matter of debate whether ApoEɛ4 status would improve prediction of amyloid pathology and represent a cost-effective alternative to amyloid PET or CSF Aβin resource-limited settings in late onset AD.Recent research suggest that the mean prevalence of PET amyloid-positivity is 95%in ApoEɛ4-positive AD patients.This short review aims to provide an updated information on the relationship between ApoEɛ4 and amyloid biomarkers.

Unsatisfying antiviral therapeutic effect in patients with mother-tochild transmissed chronic hepatitis B virus infection: a prospective multi-center clinical study

Background:Few data are available regarding the progression of liver disease and therapeutic efficacy in chronic hepatitis B(HBV)carriers infected by mother-to-child transmission(MTCT).This study aimed to investigate these two aspects by comparing the adult chronic HBV carriers in MTCT group with those in horizontal transmission group.Methods:The 683 adult chronic HBV patients qualified for liver biopsy including 191 with MTCT and 492 with horizontal transmission entered the multi-center prospective study from October 2013 to May 2016.Biopsy results from 217 patients at baseline and 78 weeks post antiviral therapy were collected.Results:Patients infected by MTCT were more likely to have e antigen positive(68.6%vs.58.2%,x^2=-2.491,P=0.012)than those with horizontal transmission.However,in patients with MTCT,levels of alkaline phosphatase(ALP)(P=0.031),Fibroscan(P=0.013),N-terminal propeptide of Type III procollagen(PIIINP)(P=0.014),and Laminin(LN)(P=0.006)were high,in contrast to the patients with horizontal transmission for whom the levels of albumin(ALB)(P=0.041),matrix metalloproteinase-3(MMP-3)(P=0.001)were high.The 47.2% of patients with MTCT and 36.8%of those with horizontal transmission had significant liver fibrosis(P=0.013).Following antiviral therapy for 78 weeks,21.2%and 38.0%patients with MTCT and horizontal transmission acquired hepatitis B e antigen(HBeAg)clearance,respectively(P=0.043),and the virological response rates were 54.7%and 74.1%in the MTCT and horizontal groups,respectively(P=0.005).MTCT was a risk factor for HBeAg clearance and virological response.Conclusion:Adult patients with MTCT were more prone to severe liver diseases,and the therapeutic efficacy was relatively poor,which underlined the importance of earlier,long-term treatment and interrupting perinatal transmission.

Estimating Costs of the HIV Comprehensive Intervention Using the Spectrum Model--China,2015-2019

Introduction:In order to facilitate human immunodeficiency virus(HIV)treatment and prevention,the resource needs for HIV national strategic planning in developing regions were estimated based on Spectrum,the universal HIV costeffectiveness analysis software.Methods:Based on the theoretical framework of Spectrum,the study developed a cost measurement tool for HIV,and calculated the cost of HIV prevention and control in 6 sampled cities in China during 2015–2019 using the Spectrum model.Results:From 2015 to 2019,the average annual costs for HIV prevention and control for Shijiazhuang,Yantai,Ningbo,Zhenjiang,Foshan,and Wuxi cities were 46.78,47.55,137.49,24.73,74.37,and 58.30 million Chinese yuan(CNY),respectively.The per capita costs were 4.37,6.73,17.33,7.77,17.56,and 8.91 CNY,respectively.In terms of the cost structure,the ratio of preventive intervention funds to therapeutic intervention funds(antiviral treatment)varied in sampled cities.Discussion:Developing comprehensive and systematic HIV fund calculation methods can provide a research basis for rational resource allocation in the field of HIV.

Temperature Field of PC Box Girder Bridge Based on GPRS Temperature Collection System

In order to study the temperature distribution and the corresponding temperature effects on pre-stressed concrete（PC） curved box girder bridge in Shandong Province, this paper builds and adopts an automatic remote real-time temperature collection system to collect temperature data on site, and further uses the software ANSYS for analysis. Based on the comparisons between the measured data and the simulation results, the following conclusions can be drawn： 1 Our temperature monitoring system is reliable; 2 The corresponding measured data of the web plate and flange plate exposed to the sun, vary more severely than that at other positions, so these plates need higher standard design and construction requirements; 3 In the cold wave where still is sunshine, the box girder temperature effect behaves as sine-like curve.