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Item Consumo de alcohol y autoestima, en estudiantes de la Universidad Especializada de las Américas(REDES)El consumo de drogas y sobre todo el de alcohol es un problema de salud pública, y que se da inicio en la adolescencia (CONAPRED, 2013). En esta edad existen ciertas características propias del período evolutivo del ser hu- mano que pueden facilitar al joven el consumo de alcohol y otras drogas. En esta investigación se analizó las tendencias actuales del consumo de alcohol y el nivel de autoestima que posee el estudiante que ingresa a una institución de enseñanza superior. El objetivo de esta investigación fue estimar la relación entre el nivel de autoestima y consumo de alcohol en estudiantes de nuevo ingreso de la Facultad de Ciencias Médicas y Clínicas (FCMC) de la Universidad Especializada de Las Américas (UDELAS). Fue un estudio descriptivo correlacional, transversal, de diseño no experimental, de una sola medición y un solo grupo. Se aplicó dos test a estudiantes de primer ingreso, uno medió la autoestima y el otro el consumo de alcohol, ambos instrumentos tuvieron un índice Alfa de Conbrach de 0.8; se utilizó la entrevista para colocar ambos instrumentos. La población fue de 604 estudiantes y la muestra de 236 estudiantes. Los resultados muestran que la mayoría de las estudiantes, poseen autoestima alta (80%) y sin riesgo para el consumo de alcohol (14.4%). Se concluyó que no hay relación entre consumo de alcohol y autoestima, sin embargo, se encontró relación entre riesgo de consumo y la carrera que estudia.Item Advancements in mems and nems from bio-tribological perspective(Journal of Nanomedicine, Nanotechnology and Nanomaterials, 2021-09-30)Biotribology is a field dedicated to the understanding of many sliding and frictional interfaces in living tissue. The field gained popularity in the 1990´s due to miniaturization of electromechanical components which prompted issues related to grinding and wear at smaller scales. This is, since MEMs and NEMS have gained control over medication, biotechnology, optics, hardware, and avionics and, due to the scale, continuum mechanics cannot accurately describe such nanoscale phenomena. MEMs and NEMS are increasingly used in industrial and defense applications. In chemistry these devices allow smaller reagent volumes and faster reaction times, and the simultaneous execution of multiple types of analyses. In biotechnology, these are used to examine DNA or proteins in order to detect ailments or find new medications. They are also known as DNA arrays, and they're capable of identifying thousands of genes at once. In the pharmaceutical industry, they serve as drug delivery systems. Indeed there are several applications for such kind of devices and in order to increase the number of fields of application, it is necessary to overcome several tribological challenges. Thus, this review focuses on tribology in Bio MEMS/NEMS, its applications, advancements and challenges since device miniaturization is one of the frontier technologies of the 21st centuryItem Design of a cost-effective swimming prosthesis for transtibial amputee patients(Revista Académica Gente Clave, 2022-10-06)swim fin prosthesis has been manufactured for a transtibial amputee patient by 3D printers using glycol-modified polyethylene terephthalate associated with a video recording analyzer that allows the measurement of the angles of the participant's residual limb. The data provided by the study indicate that the knee flexors present, according to Daniel's scale, the strength of 3.5, the knee extension (quadriceps-rectus femoris) a strength of 4, and the adductors (adductor medius) and abductors (gluteus medius, tensor fascia lata) a strength of 4. Mathematical modeling was performed to determine the critical loading conditions, considering some parameters that affect the mechanics of the transtibial amputee's kick, such as the angular velocity of the kick, drag force, and flipper geometry. Similarly, the mechanical strength of the prosthesis was evaluated by finite element analysis, and it was determined that given the angular velocity of the prosthesis, the maximum stress Von Miss 31.78MPa. In tests, the equipment operated at a pressure of 6.1 kPa.Item Advancements in blood rheology and hemodynamics simulation with a brief history(Advance Research in Sciences (ARS), 2023-09-20)Blood rheology is a complex field of study that investigates blood flow behavior, vital for understanding its role in physiological and pathological conditions. This article delves into various rheological models that describe blood behavior, ranging from Generalized Newtonian models to more sophisticated thixotropic and elastoviscoplastic models. One such model, the Horner-Armstrong-Wagner-Beris (HAWB) model, offers valuable insights into the dynamic interplay of reversible and irreversible phenomena in blood flow. Recent advancements, such as the mHAWB framework, provide enhanced accuracy and versatility in modeling blood rheology, holding great potential for diagnostic and therapeutic applications. Moreover, microscopic and mesoscopic simulations have paved the way for deeper insights into blood behavior, bridging the gap between theory and experiment. Multiscale models offer a promising approach to capturing the complexities of blood rheology at various length scales. Finally, we explore the clinical implications of blood rheology, including its significance in conditions like polycythemia, neonatal respiratory distress, and circulatory inadequacy. By understanding blood rheology comprehensively, we can advance our knowledge of complex blood flow dynamics and its potential applications in healthcare.