This book analyzes how COVID-19 impacted politics and how politics shaped the response to the pandemic in Latin America, the region which has become the epicenter of the global health crisis started in China. The volume brings together studies carried out in eight countries of the region - Argentina, Brazil, Chile, Colombia, Ecuador, Mexico, Nicaragua and Uruguay - and show how the impacts and outcomes varied a lot across the region depending on the political processes under way in each country in the years preceding the pandemic and on the political responses adopted by each government to deal with the health crisis. The volume is divided into four parts, each one dedicated to a specific dimension of the relation between politics and COVID-19 in Latin America. The first part is dedicated to denialism, and presents three case studies of governments that denied the importance of the health crisis: Brazil, Mexico and Nicaragua. The second part takes Uruguay and Colombia as two opposite examples of successful and failed state action against COVID-19. The third part analyzes how social movements faced the pandemic in Brazil and Chile. Finally, the fourth part analyzes how public opinion reacted to political responses to COVID-19 in four countries: Argentina, Brazil, Ecuador and Mexico. COVID-19's Political Challenges in Latin America will be a valuable resource for political scientists, sociologists and other social scientists interested in understanding how the pandemic affected politics and how politics affected the fight against the biggest health crisis faced by humanity in the last hundred years.

The opening chapter of Horizons in World Cardiovascular Research. Volume 16 discusses the functions of the internal jugular veins, particularly how they are usually valveless except for a single valve situated just above the junction of the vein with the brachiocephalic vein. Additionally, the authors assess the frequency, nature, duration and significance of cardiovascular disorders associated with rotavirus infection in the human body. A careful analysis of electrocardiograms and other diagnostic tools is included with the goal of helping to early identify high risk beta-thalassemia major patients for arrhythmias and sudden cardiac death. The authors also examine the coronary vasospasm as a potential risk for thrombus formation in patients with drug-eluting stents implantation by showing several clinical studies and case reports in terms of mechanism and prevention. Following this, an overview of the structure of smooth muscle cells and their main functions in the human umbilical artery is presented. The anatomy and physiology of venous outflow from the brain is described. Since physical effects play an important role in regulating this outflow, it is important to present some basic physical principles governing the flow in the tubes. Moreover, the authors review a transgenic mouse model to study its genetic contribution to Moyamoya syndrome, a cerebrovascular condition defined by the chronic progressive stenosis of the intracranial internal carotid arteries and their major branches, as well as describe a recently-developed surgical model. The closing chapter posits that it would be beneficial to describe the difficulties and challenges that occur during the implantation of permanent biventricular defibrillating systems in cases of Superior Vena Cava is Persistent Left Superior Vena Cava.

Divorce is very painfull, but when a Russian pearl knocks at your door from a distant unknown land, all previous troubles and unpleasant memoirs are ancient history. This is his new jouney of love and passion. This girl is the treasure of his life and the book reflects the reason behind to why his endeavoring must keep on for ever until they both become one in union and harmony.

This book analyzes how COVID-19 impacted politics and how politics shaped the response to the pandemic in Latin America, the region which has become the epicenter of the global health crisis started in China. The volume brings together studies carried out in eight countries of the region - Argentina, Brazil, Chile, Colombia, Ecuador, Mexico, Nicaragua and Uruguay - and show how the impacts and outcomes varied a lot across the region depending on the political processes under way in each country in the years preceding the pandemic and on the political responses adopted by each government to deal with the health crisis. The volume is divided into four parts, each one dedicated to a specific dimension of the relation between politics and COVID-19 in Latin America. The first part is dedicated to denialism, and presents three case studies of governments that denied the importance of the health crisis: Brazil, Mexico and Nicaragua. The second part takes Uruguay and Colombia as two opposite examples of successful and failed state action against COVID-19. The third part analyzes how social movements faced the pandemic in Brazil and Chile. Finally, the fourth part analyzes how public opinion reacted to political responses to COVID-19 in four countries: Argentina, Brazil, Ecuador and Mexico. COVID-19's Political Challenges in Latin America will be a valuable resource for political scientists, sociologists and other social scientists interested in understanding how the pandemic affected politics and how politics affected the fight against the biggest health crisis faced by humanity in the last hundred years.

La Quimica es una asignatura basica del plan de estudio del preuniversitario, que contribuye a la interpretacion dialectico-materialista de las regularidades que se dan en las formas de movimiento quimico. Para alcanzar este fin, en el proceso de ensenanza aprendizaje de decimo grado, el estudiante debe lograr la sistematizacion epistemologica y metodologica de la ciencia. Por el papel que desempenan los conceptos en el pensamiento logico, su sistematizacion constituye uno de los objetivos fundamentales del proceso de ensenanza-aprendizaje de la Quimica. La tesis aporta el sistema de tareas y en correspondencia con la logica integradora de las dimensiones de definicion, aplicacion y transferencia de los conceptos en la dinamica de la sistematizacion de los conceptos de Quimica en el decimo grado de preuniversitario. La tesis consta de introduccion, desarrollo en dos capitulos, conclusiones, recomendaciones, bibliografia y anexos. El primer capitulo contiene el marco teorico - referencial del proceso de ensenanza - aprendizaje de la Quimica en el decimo grado y la dinamica de la sistematizacion de los conceptos."