BACKGROUND Testicular torsion is the most common acute scrotum worldwide and mainly occurs in children and adolescents.Studies have demonstrated that the duration of symptoms and torsion grade lead to different outcom...BACKGROUND Testicular torsion is the most common acute scrotum worldwide and mainly occurs in children and adolescents.Studies have demonstrated that the duration of symptoms and torsion grade lead to different outcomes in children diagnosed with testicular torsion.AIM To predict the possibility of testicular salvage(TS)in patients with testicular torsion in a tertiary center.METHODS We reviewed the charts of 75 pediatric patients with acute testicular torsion during a 12-year period from November 2011 to July 2023 at the Suzhou Hospital of Anhui Medical University.Univariate and multivariate logistic regression analyses were used to determine independent predictors of testicular torsion.The data included clinical findings,physical examinations,laboratory data,color Doppler ultrasound findings,operating results,age,presenting institution status,and follow-up results.RESULTS Our study included 75 patients.TS was possible in 57.3%of all patients;testicular torsion occurred mostly in winter,and teenagers aged 11-15 years old accounted for 60%.Univariate logistic regression analyses revealed that younger age(P=0.09),body mass index(P=0.004),torsion angle(P=0.013),red blood cell count(P=0.03),neutrophil-to-lymphocyte ratio(P=0.009),and initial presenting institution(P<0.001)were associated with orchiectomy.In multivariate analysis,only the initial presenting institution predicted TS(P<0.05).CONCLUSION The initial presenting institution has a predictive value for predicting TS in patients with testicular torsion.Children with scrotal pain should be admitted to a tertiary hospital as soon as possible.展开更多
The underground water testing over the years has found that the total dissolved solids, total hardness, chloride, nitrate(calculated in N) and many other factors in the underground water in Shijiazhuang exceed the lim...The underground water testing over the years has found that the total dissolved solids, total hardness, chloride, nitrate(calculated in N) and many other factors in the underground water in Shijiazhuang exceed the limits specified in Sanitary Standard for Drinking Water GB 5749-2006 and are distributed in a point source pattern. Starting by introducing the hydrological and geologic characteristics of Shijiazhuang, this paper analyzes the chemical properties and pollution status of the underground water in the city and the effect of factors that exceed the standard on the human body. Based on the analysis, it further discusses the causes for pollution and cases of pollution treatment that absorbed tremendous manpower and resources in the past and thus resulted in huge economic losses to the state. The paper concludes that it is extremely important to make a serious commitment to the pollution control. Judging from the hydrological conditions, the southeast part shows stronger anti-pollution performance than the northwest under the natural state.展开更多
A proper edge coloring of a graph G is acyclic if there is no 2-colored cycle in G.The acyclic chromatic index of G is the least number of colors such that G has an acyclic edge coloring and denoted byχ′a(G).An IC-p...A proper edge coloring of a graph G is acyclic if there is no 2-colored cycle in G.The acyclic chromatic index of G is the least number of colors such that G has an acyclic edge coloring and denoted byχ′a(G).An IC-plane graph is a topological graph where every edge is crossed at most once and no two crossed edges share a vertex.In this paper,it is proved thatχ′a(G)≤Δ(G)+10,if G is an IC-planar graph without adjacent triangles andχ′a(G)≤Δ(G)+8,if G is a triangle-free IC-planar graph.展开更多
基金Supported by Anhui Province Translational Medicine Research Fund Project,No.2021zhyx-C59 and No.2021zhyx-C75.
文摘BACKGROUND Testicular torsion is the most common acute scrotum worldwide and mainly occurs in children and adolescents.Studies have demonstrated that the duration of symptoms and torsion grade lead to different outcomes in children diagnosed with testicular torsion.AIM To predict the possibility of testicular salvage(TS)in patients with testicular torsion in a tertiary center.METHODS We reviewed the charts of 75 pediatric patients with acute testicular torsion during a 12-year period from November 2011 to July 2023 at the Suzhou Hospital of Anhui Medical University.Univariate and multivariate logistic regression analyses were used to determine independent predictors of testicular torsion.The data included clinical findings,physical examinations,laboratory data,color Doppler ultrasound findings,operating results,age,presenting institution status,and follow-up results.RESULTS Our study included 75 patients.TS was possible in 57.3%of all patients;testicular torsion occurred mostly in winter,and teenagers aged 11-15 years old accounted for 60%.Univariate logistic regression analyses revealed that younger age(P=0.09),body mass index(P=0.004),torsion angle(P=0.013),red blood cell count(P=0.03),neutrophil-to-lymphocyte ratio(P=0.009),and initial presenting institution(P<0.001)were associated with orchiectomy.In multivariate analysis,only the initial presenting institution predicted TS(P<0.05).CONCLUSION The initial presenting institution has a predictive value for predicting TS in patients with testicular torsion.Children with scrotal pain should be admitted to a tertiary hospital as soon as possible.
文摘The underground water testing over the years has found that the total dissolved solids, total hardness, chloride, nitrate(calculated in N) and many other factors in the underground water in Shijiazhuang exceed the limits specified in Sanitary Standard for Drinking Water GB 5749-2006 and are distributed in a point source pattern. Starting by introducing the hydrological and geologic characteristics of Shijiazhuang, this paper analyzes the chemical properties and pollution status of the underground water in the city and the effect of factors that exceed the standard on the human body. Based on the analysis, it further discusses the causes for pollution and cases of pollution treatment that absorbed tremendous manpower and resources in the past and thus resulted in huge economic losses to the state. The paper concludes that it is extremely important to make a serious commitment to the pollution control. Judging from the hydrological conditions, the southeast part shows stronger anti-pollution performance than the northwest under the natural state.
基金supported by the National Natural Science Foundation of China (No. 11771443)Natural Science Foundation of Shandong Province (No. ZR2019BA016)+1 种基金by the foundation of innovative Science and technology for youth in universities of Shandong Province (No. 2019KJI001)under the financial support from the Zaozhaung University Research Fund Project in 2019
文摘A proper edge coloring of a graph G is acyclic if there is no 2-colored cycle in G.The acyclic chromatic index of G is the least number of colors such that G has an acyclic edge coloring and denoted byχ′a(G).An IC-plane graph is a topological graph where every edge is crossed at most once and no two crossed edges share a vertex.In this paper,it is proved thatχ′a(G)≤Δ(G)+10,if G is an IC-planar graph without adjacent triangles andχ′a(G)≤Δ(G)+8,if G is a triangle-free IC-planar graph.
