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MEXICO’S CHANGING ELECTORAL ORDER, 1977-1996 - ITS MEANING FOR STATE-SOCIETY RELATIONS
ARTURO SANTA CRUZ 서울대학교 국제학연구소 1998 Journal of International and Area Studies Vol.5 No.1
By looking at the changes in the electoral legislation, the author analyzes state-society relations in Mexico in the last twenty years. The article is divided in four sections. The first one is a theoretical discussion of the main concepts used in the analysis. In the second the author advances a characterization of Mexico’s political regime. The third section deals with the changes made to the electoral legislation from 1977 to 1996. In the concluding remarks, the author elaborates the potential consequences these process may have on Mexico’s state-society relations.
Endogenous Timing with a Socially Responsible Firm
( Arturo Garcia ),( Mariel Leal ),( Sang-ho Lee ) 한국경제학회 2019 The Korean Economic Review Vol.35 No.2
This study considers a duopoly model in which a socially responsible (SR) firm competes with a private firm by incorporating environmental externality and clean technology. We analyze the endogenous market structure where both firms strategically, sequentially, or simultaneously decide quantities, which also affect abatement activities. We reveal that depending on the relative concerns on environment and consumer surplus, the SR firm can be less or more aggressive in production and abatement, and it may earn high profits. Thus, not only the significance of externality but also the instrumental conflict of social concerns are crucial factors in determining the equilibrium of endogenous timing game. Finally, we indicate that unless the concern for externality is high, the simultaneous and sequential move game with SR firm leadership are socially desirable.
Arturo Domínguez,Miquel Bayó,Jesús Muñoz-Rodríguez,Jose Antonio Bellido,Jose María Abascal-Junquera,Naim Hannaoui,Josep Maria Banús 대한비뇨의학회 2015 Investigative and Clinical Urology Vol.56 No.11
Heterophilic antibodies are human immunoglobulins directed against various animal antigens. They can produce false-positive results in the analysis of different tumor markers, including prostate-specific antigen. This interference can lead to misdiagnosis, unnecessary tests, and overtreatment in some cases. We present herein the case of a 52-year-old man with repeated spurious elevation of prostate-specific antigen, reaching levels of 108.7 ng/mL, that were suspected to be caused by heterophilic antibodies. The interference was solved by changing the analysis technique. Real values of prostate-specific antigen were less than 1 ng/mL.
Arturo Suarez-Suarez,Norberto Dominguez-Ramirez,Orlando Susarrey-Huerta Techno-Press 2023 Coupled systems mechanics Vol.12 No.6
Over-coating is one of the most popular engineering practices to strengthen Reinforced Concrete (RC) structures, due to the relative quickness and ease of construction. It consists of an external coat bonded to the outer surface of the structural RC element, either by the use of chemical adhesives, mechanical anchor bolts or simply mortar injection. In contrast to these constructive advantages, the numerical estimation of the bearing capacity of the strengthened reinforced concrete element is still complicated, not only for the complexity of modelling a flexible membrane or plate attached to a quasi-rigid solid, but also for the difficulties that raise of simulating any potential delamination between both materials. For these reasons, the standard engineering calculations used in the practice remain very approximated and clumsy. In this work, we propose the formulation of a new 2D solid-layer finite element capable to link a solid body with a flexible thin layer, as it were the "skin" of the body, allowing the potential delamination between both materials. In numerical terms, this "skin" element is intended to work as a transitional region between a solid body (modelled with a classical formulation of a standard quadrilateral four-nodes element) and a flexible coat layer (modelled with cubic beam element), dealing with the incompatibility of Degrees-OfFreedom between them (two DOF for the solid and three DOF for the beam). The aim of the solid-layer element is to simplify the mesh construction of the strengthened RC element being aware of two aspects: a) to prevent the inappropriate use of very small solid elements to simulate the coat; b) to improve the numerical estimation of the real bearing capacity of the strengthened element when the coat is attached or detached from the solid body.
The Italian Juwish Migration to Eretz Israel and Birth of Italian Chalutz Movement(1938-1948)
Arturo Marzano 부산외국어대학교 지중해지역원 2010 The Mediterranean Review Vol.3 No.1
This article analyzes the Italian Jewish aliyah [migration] to Eretz Israel [the Land of Israel] before the birth of the Israeli State in May 1948. This phenomenon only concerned a tiny minority of the Italian Jews. Between 1938 and 1940, out of the 40,000 Italian Jews living in Italy, only around 400 decided to migrate to Mandatory Palestine. At the end of the Second World War, Zionism became widely accepted,and an increase occurred in the aliyah between 1945 and 1948. Yet, such a choice continued to be made only by a minority of Jews. The main reasons lay in the small number of Italian Jews, their high level of integration and assimilation before and after the Shoah, and the fact that Zionism was mainly interpreted as a philanthropic movement or a way to support Israel, rather than as an ideology leading towards aliyah.
( Arturo Cortés-tellés ),( Stephanie López-romero ),( Roberto Mancilla-ceballos ),( Diana Lizbeth Ortíz-farías ),( Nelda Núñez-caamal ),( Esperanza Figueroa-hurtado ) 대한결핵 및 호흡기학회 2020 Tuberculosis and Respiratory Diseases Vol.83 No.-
Background: Currently, Mexico ranks third worldwide in mortality due to coronavirus disease pandemic 2019 (COVID-19) and reliable information is scarce, with the available data focused on epidemiological characteristics. This study aimed to identify the risk factors associated with mortality and outcomes in hospitalized Mexican patients with COVID-19. Methods: We prospectively assessed patients admitted to a COVID-19 reference center in southeast Mexico between March 28 and June 30, 2020. Mortality was defined as survivors or non-survivors and univariate and multivariate logistic regression analyses were performed to explore the association of the clinical characteristics and laboratory parameters with mortality. Results: We included 200 patients with a mean age of 55 years, 69% were men and 72% had at least one chronic comorbidity. Eighty-six patients required invasive mechanical ventilation (IMV) with an overall mortality rate of 82.5%. Only 51% of the patients with IMV were admitted to the intensive care unit (ICU), with a survival rate of 27.3%, but only 7.2% for patients without ICU admissions (p=0.014). The multivariate analysis found that a neutrophil-to-lymphocyte ratio ≥9 (odds ratio [OR], 4.64; 95% confidence interval [CI], 2.05-10.53) albumin <3.5 g/dL (OR, 3.76; 95% CI, 1.56-9.07), lactate dehydrogenase (LDH) level ≥725 U/L (OR, 5.45; 95% CI, 2.36-12.57), and IMV (OR, 64.7; 95% CI, 15.20-275.39) were independent risk factors associated with mortality. Conclusion: Neutrophil-to-lymphocyte ratio, LDH, albumin, and IMV were independent risk factors for mortality in Mexican patients with COVID-19. Also, the availability of ICU resources is invaluable for better outcomes in critically ill patients. Our results could provide clinical information for timely decision-making in low-and-middle income countries to overcome the pandemic.
Whole-body vibration as a potential countermeasure for dynapenia and arterial stiffness
Arturo Figueroa,Salvador J. Jaime,Stacey Alvarez-Alvarado 한국한의학연구원 2016 Integrative Medicine Research Vol.5 No.3
Age-related decreases in muscle mass and strength are associated with decreased mobility, quality of life, and increased cardiovascular risk. Coupled with the prevalence of obesity, the risk of death becomes substantially greater. Resistance training (RT) has a well-documented beneficial impact on muscle mass and strength in young and older adults, although the high-intensity needed to elicit these adaptations may have a detrimental or negligible impact on vascular function, specifically on arterial stiffness. Increased arterial stiffness is associated with systolic hypertension, left ventricular hypertrophy, and myocardial ischemia. Therefore, improvements of muscle strength and arterial function are important in older adults. Recently, whole-body vibration (WBV) exercise, a novel modality of strength training, has shown to exhibit similar results on muscle strength as RT in a wide-variety of populations, with the greatest impact in elderly individuals with limited muscle function. Additionally, WBV training has been shown to have beneficial effects on vascular function by reducing arterial stiffness. This article reviews relevant publications reporting the effects of WBV on muscle strength and/or arterial stiffness. Findings from current studies suggest the use of WBV training as an alternative modality to traditional RT to countermeasure the age-related detriments in muscle strength and arterial stiffness in older adults.
Ultrasonic Detection of Chloride Ions and Chloride Binding in Portland Cement Pastes
Arturo Emanuel Ramı´rez-Ortı´z,Francisco Castellanos,Prisciliano F. de J. Cano-Barr 한국콘크리트학회 2018 International Journal of Concrete Structures and M Vol.12 No.2
Chloride ions diffuse through the concrete cover and interact with the cement hydration products. As a result, some chloride ions become chemically and/or physically bound. Free chloride ions are the primary cause of steel corrosion in reinforced concrete structures. In this study, ultrasound was used to detect the presence and binding of chloride ions in cement pastes that contained supplementary cementing materials. Four cement pastes with w/c ratio of 0.55 were prepared and cast into cylindrical specimens that were moist cured for 254 days before being oven dried at 105 ℃. The dried specimens were vacuum-saturated with NaCl solutions at various concentrations. Through-transmission ultrasonic measurements were performed as a function of time using 500 kHz longitudinal wave transducers. The results indicated exponential relationships between energy/amplitude weighted average frequency and the amount of chloride chemically bound by the cement pastes.