Neutrophil-to-lymphocyte ratio(NLR)and platelet-to-lymphocyte ratio(PLR)have been associated with multiple entities and several types of cancers.They can be assumed as markers of inflammatory imbalance.The objective o...Neutrophil-to-lymphocyte ratio(NLR)and platelet-to-lymphocyte ratio(PLR)have been associated with multiple entities and several types of cancers.They can be assumed as markers of inflammatory imbalance.The objective of this study is to evaluate the NLR and PLR in Peyronie’s disease(PD)and to establish a comparison of its values in the acute and chronic stages.We recruited patients with PD from March 2018 to March 2019.The patients enrolled underwent medical and sexual history as well as a physical examination.The values of blood count of each patient were collected both in the acute and chronic stages.Wilcoxon test was used to compare the acute and chronic stage ratios.Kruskal-Wallis test was carried out to evaluate the impact of treatments on the ratios.To identify cutoff values,we used sensibility and specificity tables and receiver operating characteristic(ROC)curves.A total of 120 patients were enrolled.Their mean age was 55.85(range:18-77)years and the mean penile curvature was 48.43°(range:10°-100°).In the acute stage,the mean NLR was 2.35 and the mean PLR was 111.22.These ratios,in the chronic stage,were 1.57 and 100.00,respectively.Statistically significant differences between acute and stable stages for both indices were found(NLR:P<0.0001;PLR:P=0.0202).The optimal cutoff for classification in acute or stable stage was 2 for NLR and 102 for PLR.According to our results,with an ordinary blood count,we could have important indications regarding the disease stage of the patient,and consequently on the most appropriate type of therapy to choose.展开更多
This paper is focused on the analysis, in the framework of lattice theory, of the matchings obtained from restabilization (after disruption) of stable matchings. When the disruption is due to entry workers or closure ...This paper is focused on the analysis, in the framework of lattice theory, of the matchings obtained from restabilization (after disruption) of stable matchings. When the disruption is due to entry workers or closure of firms the unemployed workers make offers to firms. The stable matching obtained is the firms-worst stable matching of the set of stable matchings that the firms weakly prefer to the initial stable matching (i.e., before being disrupted by changes in the population). More precisely, their position within the lattice of stable matchings is shown.展开更多
In an abstract set up, we get strong type inequalities in L^p＋1 by assuming weak or extra-weak inequalities in Orlicz spaces. For some classes of functions, the number p is related to Simonenko indices. We apply the ...In an abstract set up, we get strong type inequalities in L^p＋1 by assuming weak or extra-weak inequalities in Orlicz spaces. For some classes of functions, the number p is related to Simonenko indices. We apply the results to get strong inequal- ities for maximal functions associated to best Ф-approximation operators in an Orlicz space L^Ф.展开更多
Soil erosion and associated sediment redistribution are key environmental problems in Central Argentina.Specific land uses and management practices,such as intensive grazing and crop cultivation,are considered to be s...Soil erosion and associated sediment redistribution are key environmental problems in Central Argentina.Specific land uses and management practices,such as intensive grazing and crop cultivation,are considered to be significantly driving and accelerating these processes.This research focuses on the identification of suitable soil tracers from hot spots of land degradation and sediment fate in an agricultural catchment of central Argentina with erodible loess soils.Using Energy Dispersive X-Ray Fluorescence(EDXRF),elemental concentrations were determined and later used as soil tracers for geochemical characterization.The best set of tracers were identified using two artificial mixtures composed of known proportions of soil sources collected from different lands having contrasting soil uses.Barium,calcium,iron,phosphorus,and titanium were identified for obtaining the best suitable reconstruction of source proportions in the laboratory-prepared artificial mixtures.Then,these elements,as well as the total organic carbon,were applied for pinpointing critical hot spots of erosion within the studied catchment.Feedlots were identified to be the main source of sediments,river banks and dirt roads together are the second most important source.This investigation provides key information for optimizing soil conservation strategies and selecting land management practices and land uses which do not generate great contribution of sediment,preventing pollution of the waterways of the region.展开更多
We study stable and strongly stable matchings in the marriage market with indifference in their preferences.We characterize the stable matchings as integer extreme points of a convex polytope.We give an alternative pr...We study stable and strongly stable matchings in the marriage market with indifference in their preferences.We characterize the stable matchings as integer extreme points of a convex polytope.We give an alternative proof for the integrity of the strongly stable matching polytope.Also,we compute men-optimal(women-optimal)stable and strongly stable matchings using linear programming.When preferences are strict,we find the men-optimal(women-optimal)stable matching.展开更多
For the marriage model with indifferences,we define an equivalence relation over the stable matching set.We identify a sufficient condition,the closing property,under which we can extend results of the classical model...For the marriage model with indifferences,we define an equivalence relation over the stable matching set.We identify a sufficient condition,the closing property,under which we can extend results of the classical model(without indifferences)to the equivalence classes of the stable matching set.This condition allows us to extend the lattice structure over classes of equivalences and the rural hospital theorem.展开更多
In this paper we pursue the study of the best approximation operator extended from L~Φ to L~φ, where φ denotes the derivative of the function Φ. We get pointwise convergence for the coefficients of the extended be...In this paper we pursue the study of the best approximation operator extended from L~Φ to L~φ, where φ denotes the derivative of the function Φ. We get pointwise convergence for the coefficients of the extended best approximation polynomials for a wide class of function f, closely related to the Calder′on–Zygmund class t_m^p(x) which had been introduced in 1961. We also obtain weak and strong type inequalities for a maximal operator related to the extended best polynomial approximation and a norm convergence result for the coefficients is derived. In most of these results, we have to consider Matuszewska–Orlicz indices for the function φ.展开更多
文摘Neutrophil-to-lymphocyte ratio(NLR)and platelet-to-lymphocyte ratio(PLR)have been associated with multiple entities and several types of cancers.They can be assumed as markers of inflammatory imbalance.The objective of this study is to evaluate the NLR and PLR in Peyronie’s disease(PD)and to establish a comparison of its values in the acute and chronic stages.We recruited patients with PD from March 2018 to March 2019.The patients enrolled underwent medical and sexual history as well as a physical examination.The values of blood count of each patient were collected both in the acute and chronic stages.Wilcoxon test was used to compare the acute and chronic stage ratios.Kruskal-Wallis test was carried out to evaluate the impact of treatments on the ratios.To identify cutoff values,we used sensibility and specificity tables and receiver operating characteristic(ROC)curves.A total of 120 patients were enrolled.Their mean age was 55.85(range:18-77)years and the mean penile curvature was 48.43°(range:10°-100°).In the acute stage,the mean NLR was 2.35 and the mean PLR was 111.22.These ratios,in the chronic stage,were 1.57 and 100.00,respectively.Statistically significant differences between acute and stable stages for both indices were found(NLR:P<0.0001;PLR:P=0.0202).The optimal cutoff for classification in acute or stable stage was 2 for NLR and 102 for PLR.According to our results,with an ordinary blood count,we could have important indications regarding the disease stage of the patient,and consequently on the most appropriate type of therapy to choose.
文摘This paper is focused on the analysis, in the framework of lattice theory, of the matchings obtained from restabilization (after disruption) of stable matchings. When the disruption is due to entry workers or closure of firms the unemployed workers make offers to firms. The stable matching obtained is the firms-worst stable matching of the set of stable matchings that the firms weakly prefer to the initial stable matching (i.e., before being disrupted by changes in the population). More precisely, their position within the lattice of stable matchings is shown.
基金supported by Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET)and Universidad Nacional de San Luis(UNSL)with grants PIP 11220110100033CO and PROICO 317902
文摘In an abstract set up, we get strong type inequalities in L^p＋1 by assuming weak or extra-weak inequalities in Orlicz spaces. For some classes of functions, the number p is related to Simonenko indices. We apply the results to get strong inequal- ities for maximal functions associated to best Ф-approximation operators in an Orlicz space L^Ф.
基金CONICET,Argentina PROICO 22/F41 PIP 11220150100334Universidad Nacional de San Luis,Argentina RLA 5076 ARCAL RLA 5064 and ARCAI
文摘Soil erosion and associated sediment redistribution are key environmental problems in Central Argentina.Specific land uses and management practices,such as intensive grazing and crop cultivation,are considered to be significantly driving and accelerating these processes.This research focuses on the identification of suitable soil tracers from hot spots of land degradation and sediment fate in an agricultural catchment of central Argentina with erodible loess soils.Using Energy Dispersive X-Ray Fluorescence(EDXRF),elemental concentrations were determined and later used as soil tracers for geochemical characterization.The best set of tracers were identified using two artificial mixtures composed of known proportions of soil sources collected from different lands having contrasting soil uses.Barium,calcium,iron,phosphorus,and titanium were identified for obtaining the best suitable reconstruction of source proportions in the laboratory-prepared artificial mixtures.Then,these elements,as well as the total organic carbon,were applied for pinpointing critical hot spots of erosion within the studied catchment.Feedlots were identified to be the main source of sediments,river banks and dirt roads together are the second most important source.This investigation provides key information for optimizing soil conservation strategies and selecting land management practices and land uses which do not generate great contribution of sediment,preventing pollution of the waterways of the region.
基金We acknowledge financial support from UNSL(No.032016 and 030320)from Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET)(No.PIP 112-200801-00655)from Agencia Nacional de Promoción Científica y Tecnológica(No.PICT 2017-2355).
文摘We study stable and strongly stable matchings in the marriage market with indifference in their preferences.We characterize the stable matchings as integer extreme points of a convex polytope.We give an alternative proof for the integrity of the strongly stable matching polytope.Also,we compute men-optimal(women-optimal)stable and strongly stable matchings using linear programming.When preferences are strict,we find the men-optimal(women-optimal)stable matching.
基金the Universidad Nacional de San Luis(No.PROICO 319502)from the Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET)(No.PIP 112-201501-00505)from Agencia Nacional de Promoción Cientifíca y Tecnológica(No.PICT 2017-2355).
文摘For the marriage model with indifferences,we define an equivalence relation over the stable matching set.We identify a sufficient condition,the closing property,under which we can extend results of the classical model(without indifferences)to the equivalence classes of the stable matching set.This condition allows us to extend the lattice structure over classes of equivalences and the rural hospital theorem.
基金supported by Consejo Nacional de Investigaciones Cientificas y Tecnicas(CONICET)and Universidad Nacional de San Luis(UNSL)with grants PIP(Grant No.11220110100033CO)PROICO(Grant No.30412)
文摘In this paper we pursue the study of the best approximation operator extended from L~Φ to L~φ, where φ denotes the derivative of the function Φ. We get pointwise convergence for the coefficients of the extended best approximation polynomials for a wide class of function f, closely related to the Calder′on–Zygmund class t_m^p(x) which had been introduced in 1961. We also obtain weak and strong type inequalities for a maximal operator related to the extended best polynomial approximation and a norm convergence result for the coefficients is derived. In most of these results, we have to consider Matuszewska–Orlicz indices for the function φ.
