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Copyright of Cirugía y Cirujanos is the property of Publicidad Permanyer SLU and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archivos de Criminología, Criminalística y Seguridad Privada is the property of Sociedad Mexicana de Criminologia Capitulo Nuevo Leon, A.C. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background: The 25% of traumatic deaths are due to chest trauma with a mortality of 28%, and closed trauma is the most common mechanism of injury. The use of firearms increases the relative risk of death. The five more frequent specific chest injuries are lung contusion (31.8%), hemothorax/ pneumothorax (19.4%), rib fractures (13.2%), and diaphragmatic injury (7.5%). Clinical case: Patient of 25 years with a single firearm projectile wound in the chest who assisted to the emergency room (ER) with significant respiratory distress and meriting surgical emergency airway, documenting double pneumothorax, aortic laceration and rupture of the trachea, which required management in the ER with bilateral chest tube placement and subsequent surgical repair. Conclusion: Anatomical and pathophysiological knowledge and the standardized management of the international guidelines are the key to keep a high level of suspect with a patient with chest penetrating trauma. Besides they improve the possibility of diagnosis and timely treatment. [ABSTRACT FROM AUTHOR]

Introduction: Gunshot Wounds (GW) are to date a public health problem worldwide. In United States, each year from 30,000 to 50,000 people die secondary to a gunshot wound, making gunshot wounds the leading cause of death in the age group between 1-19 years of age, it is also estimated that for every death there are at least three disabling injuries resulting in approximately 150,000 injuries caused by firearm projectiles each year. In Mexico, the epidemiology of these injuries is unknown. The Military Central Hospital has no record of what could provide us some information to make it better to understand the magnitude of this problem in our environment and thereby take medical decisions best suited to the survival of our beneficiaries. Objective: To analyze the epidemiology of injuries by firearm projectile. Materials and Methods: We conducted a retrospective observational study of six years from January fist 2006 to December 31, 2011, in which 246 patients who first entered the Central Military Hospital in Mexico with a diagnosis of "Gunshot wound injury" according to their clinical record, subsequently clinical records were obtained of the Central Military Hospital archive, proceeding to the database filling with the parameters set by the researchers. Taking the patient dependent variables such as: age, sex, status in the army, hierarchy in the army (in case of being army man); were subjected to the clinical description of the injury, including anatomic site, fracture, production time between injury and admission to the emergency room and fist diagnosis, also the circumstances of injuries were described, including the place of injury, use of body armor, the caliber of the projectile and the number of impact. Variables during hospitalization were taken such as hospital days, surgical procedures, the use of hyperbaric chamber, antibiotic therapy, the number of specialties involved in the care of these patients, the use of blood transfusions, infections according to the medium culture, their complications and readmissions and the degree of disability certification for employment as military. Then, we made tables and statistical analysis of descriptive data, expressing the results in graphs and thus drawing conclusions. Results: From January the first 2006 to December 31ST 2011 we received a total of 246 patients with the diagnosis of "Gunshot wound injury" in the emergency department of the Central Military Hospital in Mexico with a total of 313 bullets, the male sex was predominant with 93% of the lesions, most patients were military (81%) and troop mainly (56%), the main circumstance in which our patients were injured by firearms was the street (56%) followed by confrontation with armed group (22%), 9 mm weapons are primarily used to produce these lesions, generating between 1 and 6 impacts per patient, mostly 2. The main affected anatomical site was lower limb, followed by chest and upper extremities, generating aggregate fractures in the 45%. While in emergency management, 16% required blood transfusion. During hospitalization most patients required one (39%) to two antibiotics (43%), being required hyperbaric chamber therapy in 5%. During follow-up, 19% of patients had a readmission for treating gunshot injuries. Conclusions: The management of these patients is a public health problem in the military population and an important issue to consider because of the large number of human and material resources for the management of these lesions resources, considering that the 246 patients were 877 performed several surgeries and that the average length of stay was 21days alert us because of the number of specialists needed to meet these demands. [ABSTRACT FROM AUTHOR]

Copyright of Llull: Revista de la Sociedad Espanola de Historia de las Ciencias y de las Tecnicas is the property of Sociedad Espanola de Historia de las Ciencias y de las Tecnicas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The murder of the president John F. Kennedy, on Novermber 22nd of 1963 at 12:30 P. M. has been regarded as the crime of the XX century. An account is presented about the primary care findings at Parkland Memorial as well as the autopsy and radiologic findings described by physicians and published in the JAMA magazine. [ABSTRACT FROM AUTHOR]

Copyright of Latin-American Journal of Physics Education is the property of Latin-American Physics Education Network and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ciencia e Ingenieria Neogranadina is the property of Ciencia e Ingenieria Neogranadina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The article discusses the physical theories of air according to the 16th century book "Quesiti et inventione diverse" by Niccoló Tartaglia. It describes Tartaglia's theory regarding the resistance of air and the characteristics of the force required to divide it. It then discusses Tartaglia's relation to the theories of Italian scientist Vannoccio Biringuccio, focusing on Biringuccio's understanding of the way sound travels on air. Other subjects under discussion include the study of air using cannons, the medieval treatise De rationeponderis, and the mathematician Jordanus Nemorarius.