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201
Abnormal link detection algorithm based on semi-local structure
Published 2022-02-01“…With the research in network science, real networks involved are becoming more and more extensive.Redundant error relationships in complex systems, or behaviors that occur deliberately for unusual purposes, such as wrong clicks on webpages, telecommunication network spying calls, have a significant impact on the analysis work based on network structure.As an important branch of graph anomaly detection, anomalous edge recognition in complex networks aims to identify abnormal edges in network structures caused by human fabrication or data collection errors.Existing methods mainly start from the perspective of structural similarity, and use the connected structure between nodes to evaluate the abnormal degree of edge connection, which easily leads to the decomposition of the network structure, and the detection accuracy is greatly affected by the network type.In response to this problem, a CNSCL algorithm was proposed, which calculated the node importance at the semi-local structure scale, analyzed different types of local structures, and quantified the contribution of edges to the overall network connectivity according to the semi-local centrality in different structures, and quantified the reliability of the edge connection by combining with the difference of node structure similarity.Since the connected edges need to be removed in the calculation process to measure the impact on the overall connectivity of the network, there was a problem that the importance of nodes needed to be repeatedly calculated.Therefore, in the calculation process, the proposed algorithm also designs a dynamic update method to reduce the computational complexity of the algorithm, so that it could be applied to large-scale networks.Compared with the existing methods on 7 real networks with different structural tightness, the experimental results show that the method has higher detection accuracy than the benchmark method under the AUC measure, and under the condition of network sparse or missing, It can still maintain a relatively stable recognition accuracy.…”
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202
New digital drilling process monitoring: Instrumentation, validation and calibration
Published 2025-01-01“…The specific energy index (SEI) and specific penetration index (SPI) are based on the principles of energy conservation and Mohr-Coulomb failure criterion, respectively. …”
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203
Developing a multivariate drought index to assess drought characteristics based on the SWAT-Copula method in the Poyang Lake basin, China
Published 2025-01-01“…A Multivariate Standardized Drought Index (MSDI) was then developed with simulated Standardized Soil Moisture Index (SSI) and Standardized Precipitation Index (SPI) based on copula functions. We found that (1) The SWAT can simulate monthly streamflow well with NS being 0.76–0.92 for validation data over the sub-basins in the PLB. (2) The MSDI index indicated that there were more drought events during 1960–1979 and 2000–2019, highlighting a cyclical pattern of drought events in the PLB. (3) The Xiushui River Basin encountered the most extreme drought conditions since 2000, indicating the basin faced a high risk of dry conditions. …”
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204
Genetic coupling of enhancer activity and connectivity in gene expression control
Published 2025-01-01“…Many detected QTLs overlap disease susceptibility loci and influence the predicted binding of myeloid transcription factors, including SPI1, GABPB and STAT3. Additionally, a variant associated with PCK2 promoter contact directly disrupts a CTCF binding motif and impacts promoter insulation from downstream enhancers. …”
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205
Meteorological-Hydrological-Agricultural Drought Analysis of Devegeçidi Reservoir
Published 2024-01-01“…Standard Precipitation Index (SPI), Palmer (PDSI) and self-calibrated Palmer (sc-PDSI) drought indices were applied to reveal the relationship between hydrological drought problem and precipitation data. …”
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206
Virulence and Antimicrobial-Resistant Gene Profiles of Salmonella spp. Isolates from Chicken Carcasses Markets in Ibague City, Colombia
Published 2024-01-01“…Other virulence genes such as spiC, lpfC, lpfA, and csgA were present in 90% (n = 18) of strains. …”
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207
Assessment of Trends and Magnitude of Climate Variability and Change in the Kembata Tembaro Zone in Southern Ethiopia
Published 2025-01-01“…The coefficient of variation (CV), standardized anomaly index (SAI), and standard precipitation index (SPI) were used to assess the climate variability. …”
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208
Positive Solutions Depending on Parameters for a Nonlinear Fractional System with p-Laplacian Operators
Published 2020-01-01“…This paper considers a system of fractional differential equations involving p-Laplacian operators and two parameters D0+α1φp1D0+β1ut+λft,ut,vt=0,0<t<1,D0+α2φp2D0+β2vt+μgt,ut,vt=0,0<t<1,u0=u1=u′0=u′1=0,D0+β1u0=0,D0+β1u1=b1D0+β1uη1,v0=v1=v′0=v′1=0,D0+β2v0=0,D0+β2v1=b2D0+β2vη2, where αi∈1,2, βi∈3,4, D0+αi and D0+βi are the standard Riemann-Liouville derivatives, φpis=spi−2s,pi>1, φpi−1=φqi, 1/pi+1/qi=1,ηi∈0,1,bi∈0,ηi1−αi/pi−1, i=1,2, and f,g∈C0,1×0,+∞×0,+∞,0,+∞ and λ and μ are two positive parameters. …”
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209
Zoning and assessing the potential for landslide in the Shidri Chach basin using the ANP model
Published 2021-09-01“…In this direction, as respects to basin morphology and also, findings of past researches , ten factors involved in occurring landslides in Candrigh Chay Basin were recognized and used : lithology , land use , rainfall , slope , slope aspect , road slide , sluice power index (SPI), sediment transfer index (STI).Network Analysis Process(ANP) Method was implemented to score and classify factors and scales. …”
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210
Evaluation of multi-source precipitation products for monitoring drought across China
Published 2025-01-01“…Drought indices, including SPEI-3 and SPI-1, were used to measure each product’s effectiveness in detecting drought intensity, frequency, and duration. …”
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211
Prevalence and determinants of restrictive lung disorder among quarry workers at the Umuoghara quarry site, Ebonyi State, Nigeria: a cross-sectional study
Published 2025-01-01“…Lung function test was performed using a spirometer- spirovit SPI schiller and data was analyzed with the use of IBM SPSS version 23.0. …”
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212
Study on the Transfer Threshold from Meteorological to Hydrological Drought in Dongjiang River Basin
Published 2021-01-01“…The study on transfer threshold between different drought types can effectively analyze the occurrence law and mechanism of drought transfer,especially the study on transfer threshold from meteorological drought to hydrological drought.Taking the Dongjiang River Basin as the research object,this paper calculates the standardized precipitation index (SPI) and the standardized runoff index (SRI) at month scale,identifies and extracts the drought events and their characteristics,including drought duration and drought severity based on the run theory,matches the meteorological drought events and hydrological drought events that occur at the fully or partially same time,fits the edge distribution of the matched drought characteristic attributes to verify the correlation between the duration or severity of meteorological and hydrological droughts,establishes the joint distribution models of meteorological drought and hydrological drought based on two-variable Copula function,calculates the conditional probability of different grades of hydrological drought (moderate drought,severe drought and extreme drought) under different meteorological drought conditions,and takes the drought duration or severity value corresponding to the conditional probability of 0.95 as the drought duration or severity threshold for the transfer of meteorological drought to the hydrological drought of this grade.The results show that:The optimal fit functions of meteorological drought duration and severity in the Dongjiang River Basin were gamma distribution.The optimal fit function of hydrological drought duration is gamma distribution,and the marginal distribution function of hydrological drought severity was generalized normal distribution.The drought duration and severity were better when fitting by the Gumbel-copula function.The thresholds of drought duration of middle,severe and extreme drought grades in Dongjiang River basin were 6.9 months,8.3 months,9.4 months,respectively.While the thresholds of drought severity were 4.6,5.7 and 6.6,respectively.Drought transfer threshold can provide reference for hydrological drought prediction and government decision-making of drought prevention and mitigation.…”
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213
Diseño de un medidor didáctico de consumo de energía eléctrica para uso residencial
Published 2025-01-01“…El sistema consta de una batería, un módulo ESP32 para adquirir datos de voltaje y corriente, una pantalla LCD conectada por SPI para visualización local y un módulo wifi que transmite los datos a una base de datos en la nube. …”
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214
Complexity-Based Discrepancy Measures Applied to Detection of Apnea-Hypopnea Events
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215
Innovative study on chalcopyrite flotation efficiency with xanthate and ester collectors blend using response surface methodology (B.B.D): towards sustainability
Published 2025-01-01“…Validation experiments confirmed the results, aligning well with statistical model predictions. Calculated (SPI) value of 0.1241 capita kg-1 falls within the desirable range of 0 to 1, indicating the reliability-accuracy of the outcomes.…”
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216
Where are Our Educators?
Published 2024-12-01“…Like many, at the beginning, he assumed that the dangers of social media came mainly from inappropriate use by malicious people – propagandists, spies, spreaders of fake news – and that, at worst, the platforms were a passive pipeline where the existing problems in society ran. …”
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217
Fermented soy whey induced changes on intestinal microbiota and metabolic influence in mice
Published 2022-01-01“…Soy whey (SW) is generated as process waste while preparing soy protein isolates (SPI), and causing severe environmental pollution. …”
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218
Purpurin suppresses Salmonella invasion of host cells by reducing the secretion of T3SS-1 effector proteins
Published 2025-02-01“…Salmonella pathogenicity island 1 (SPI-1), encoding type three secretion system 1 (T3SS-1), serves as a crucial virulence factor for the invasion of ST into host cells, making it an ideal target for screening anti-Salmonella virulence drugs. …”
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219
Risk assessment for non-carcinogenic effect posed by sulfates in water on the health of residents around The Sumpur River, West Sumatra-Indonesia
Published 2025-06-01“…The Sulfate Pollution Index (SPI) values at all sampling locations are below 1, classifying them as unpolluted with respect to sulfate content. …”
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220
Identification of crucial pathways and genes linked to endoplasmic reticulum stress in PCOS through combined bioinformatic analysis
Published 2025-01-01“…Eleven hub genes—MMP9, SPI1, IGF2R, GPBAR1, PDGFA, BMPR1A, LIFR, PRKAA1, MSH2, CDC25C, and KCNH2—were identified through the PPI, TF target genes, miRNA target genes, and drug target gene networks.ConclusionWe identified several crucial genes and pathways linked to the onset and development of PCOS. …”
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