Fast Fight Detection

Action recognition has become a hot topic within computer vision. However, the action recognition community has focused mainly on relatively simple actions like clapping, walking, jogging, etc. The detection of specific events with direct practical use such as fights or in general aggressive behavior has been comparatively less studied. Such capability may be extremely useful in some video surveillance scenarios like prisons, psychiatric centers or even embedded in camera phones. As a consequence, there is growing interest in developing violence detection algorithms. Recent work considered the well-known Bag-of-Words framework for the specific problem of fight detection. Under this framework, spatio-temporal features are extracted from the video sequences and used for classification. Despite encouraging results in which high accuracy rates were achieved, the computational cost of extracting such features is prohibitive for practical applications. This work proposes a novel method to detect violence sequences. Features extracted from motion blobs are used to discriminate fight and non-fight sequences. Although the method is outperformed in accuracy by state of the art, it has a significantly faster computation time thus making it amenable for real-time applications

Mejoramiento de la resistencia a la compresión y flexión del concreto sustituyendo porcentajes del agregado fino por partículas finas de viruta de acero

El objetivo de este estudio es comprobar la hipótesis del aumento de la resistencia a compresión y flexión del concreto, al sustituir 5%, 10% y 15% de agregado fino por viruta de acero en la mezcla de concreto para f ́c (diseño) = 210 kg/cm2 y f ́c (diseño) = 280 kg/cm2. Se elaboraron en total 64 probetas cilíndricas y 64 viguetas de concreto, incluyendo el concreto patrón. El volumen de agregado fino fue reemplazado con porcentajes de 5%, 10% y 15% de viruta de acero, para las diferentes edades de curado de 7, 14, 28 y 90 días. Se concluyó que para todos los casos de los diseños con viruta de acero se produjo un aumento considerable de resistencia a compresión respecto al concreto patrón; para f ́c (diseño) = 210 kg/cm2 el porcentaje con mejores resultados fue de 10%, mientras que para f ́c (diseño) = 280 kg/cm2 el porcentaje con mejores resultados fue de 5%. Para la resistencia a flexión en todos los casos de diseños con viruta de acero el aumento fue insignificante. Además, la presencia de la viruta de acero no influyó en la trabajabilidad del concreto ya que el slump se mantuvo dentro del rango permitido

Rentabilidad económica de explotaciones agrarias de secano según tamaño y tipo de laboreo

RESUMEN: El objetivo de este trabajo es evaluar, desde un punto de vista económico, el efecto que supone pasar de un sistema de laboreo tradicional a uno de laboreo reducido en explotaciones cerealistas de la meseta castellana. Se utilizan datos experimentales de campo para estimar las producciones, así como un sistema de decisión experto para seleccionar el parque de maquinaria que conlleva el menor coste de utilización. La rotación de cultivos que se ha considerado ha sido trigo/leguminosa. No se encontraron diferencias significativas entre los rendimientos obtenidos en los tres sistemas de laboreo comparados. Los resultados económicos se muestran condicionados por el sistema de laboreo empleado y el tamaño de la explotación.Economic analyses, farm size, rainfed crops, tillage systems, Agricultural and Food Policy, Q12,

MAP17 (PDZK1IP1) and pH2AX are potential predictive biomarkers for rectal cancer treatment efficacy

Rectal cancer represents approximately 10% of cancers worldwide. Preoperative chemoradiotherapy increases complete pathologic response and local control, although it offers a poor advantage in survivorship and sphincter saving compared with that of radiotherapy alone. After preoperative chemoradiotherapy, approximately 20% of patients with rectal cancer achieve a pathologic complete response to the removed surgical specimen; this response may be related to a better prognosis and an improvement in disease-free survival. However, better biomarkers to predict response and new targets are needed to stratify patients and obtain better response rates. MAP17 (PDZK1IP1) is a small, 17 kDa non-glycosylated membrane protein located in the plasma membrane and Golgi apparatus and is overexpressed in a wide variety of human carcinomas. MAP17 has been proposed as a predictive biomarker for reactive oxygen species, ROS, inducing treatments in cervical tumors or laryngeal carcinoma. Due to the increase in ROS, MAP17 is also associated with the marker of DNA damage, phosphoH2AX (pH2AX). In the present manuscript, we examined the values of MAP17 and pH2AX as surrogate biomarkers of the response in rectal tumors. MAP17 expression after preoperative chemoradiotherapy is able to predict the response to chemoradiotherapy, similar to the increase in pH2AX. Furthermore, we explored whether we can identify molecular targeted therapies that could help improve the response of these tumors to radiotherapy. In this sense, we found that the inhibition of DNA damage with olaparib increased the response to radio- and chemotherapy, specifically in tumors with high levels of pH2AX and MAP17.Spanish Ministry of Economy and Competitivity, Plan Estatal de I+D+I 2013–2016, ISCIII (Fis: PI15/00045) and CIBER de Cáncer (CB16/12/00275)co-funded by FEDER from Regional Development European Funds (European Union), Consejería de Ciencia e Innovación (CTS-1848)Consejería de Salud of the Junta de Andalucía (PI-0096–2014)

Turismo, alfarería y trabajo femenino en el Pueblo Mágico de Metepec, México

The typical city of Metepec, in the State of Mexico, has become a cultural tourism destination mainly due to its pottery production. The purpose of this paper is to examine women’s work in pottery production and its relationship with tourism from a gender perspective. The research is ethnographic, exploratory and descrip‑ tive. Qualitative techniques were employed for data collection (participant observation and semi-structured interviews). Even though the majority of artisans in Metepec are male, women have adopted essential tasks in pottery production and participate actively in the sale of crafts for the tourism market. Women’s work is not always visible or socially recognized due to the prevailing gender dynamics and the differences in power within the family and community contexts. The research contributes to the body of knowledge on tourism and gender in Mexico and aims to make women’s contributions visible in local tourism contextsLa ciudad típica de Metepec, Estado de México, se ha convertido en un destino de turismo cultural debido a su producción alfarera. El objetivo del artículo es examinar el trabajo de las mujeres en la alfarería y su relación con el turismo de Metepec, desde la perspectiva de género. La investigación es etnográfica, de sondeo y descriptiva. Para la recogida de datos se emplearon técnicas cualitativas (observación participante, entrevistas semi-estructuradas). La mayoría de los alfareros en Metepec son varones; sin embargo, las mujeres han adoptado tareas esenciales para la producción de artesanías y la venta dirigida al mercado turístico. Estas aportaciones no son reconocidas socialmente debido a las dinámicas de género y a las diferencias de poder en los contextos familiar y comunitario. La investigación contribuye al conocimiento sobre turismo y género en México y visibiliza las aportaciones de las mujeres en los contextos turísticos locales

Effects of immersive and non-immersive virtual reality on the static and dynamic balance of stroke patients: A systematic review and meta-analysis

(1) Background: The development of new technologies means that the use of virtual reality is increasingly being implemented in rehabilitative approaches for adult stroke patients. Objective: To analyze the existing scientific evidence regarding the application of immersive and non-immersive virtual reality in patients following cerebrovascular incidents and their efficacy in achieving dynamic and static balance. (2) Data sources: An electronic search of the databases Medline, Cochrane Library, PEDro, Scopus, and Scielo from January 2010 to December 2020 was carried out using the terms physiotherapy, physical therapy, virtual reality, immersive virtual reality, non-immersive virtual reality, stroke, balance, static balance, and dynamic balance. Selection of studies: Randomized controlled trials in patients older than 18 developed with an adult population (>18 years old) with balance disorders as a consequence of suffering a stroke in the previous six months before therapeutic intervention, including exercises harnessing virtual reality in their interventions and evaluations of balance and published in English or Spanish, were included. A total of two hundred twenty-seven articles were found, ten of which were included for review and of these, nine were included in the subsequent meta-analysis. (3) Data extraction: Two authors selected the studies and extracted their characteristics (participants, interventions, and validation instruments) and results. The methodological quality of the studies was evaluated using the PEDro scale, and the risk of bias was determined using the Cochrane risk-of-bias tool. Data synthesis: Of the selected studies, three did not show significant improvements and seven showed significant improvements in the intervention groups in relation to the variables. (4) Conclusions: Non-immersive virtual reality combined with conventional rehabilitation could be considered as a therapeutic option. © 2021 by the authors. Licensee MDPI, Basel, Switzerland

The immune response behavior in HIV-AIDS patients treated with ozone therapy for two years

HIV continues to be one of the biggest problems for the global public health. The African region is one of the most affected, accounting for almost two thirds of the new infections. Many of them are retroviral medications and multi-therapies aiming to stop the viral replication and maintaining immunological stability, which fail to guarantee the quality of life or enhance the patient's immunity Ozone has biological properties, among which the antimicrobial and modulatory effect on the immune response is highlighted, which makes it possible to use it in a complementary way for the treatment of these patients. We conducted the present study in which the effect of the ozone therapy administered systemically (blood route) is analyzed. We have studied 32 patients to whom we applied Major Autohemotherapy with a protocol of 15 sessions and maintenance every 15 days at 50 µg/ml of concentration; the initial dose was 4,000 µg/mlup to 12,000 µg/ml We indicated viral load, CD4 and CD8 counts before and at the end of therapy. The results showed a significant decrease in viral load to undetectable values and an increase of CD4 and CD8 at the end of the 15 sessions, being maintained at 2 years of treatment, thus achieving a permanent activation of the immune system and improving the quality of life of these patients. Key words: Ozone therapy, HIV-AIDS, Immune Response, Major Autohemotherap

Response of patients with chronic hepatitis B in one year of treatment with major autohemotherapy

The Hepatitis B (HVB) is one of the most common infectious diseases in the world, it?s wide geographical distribution is a health problem, especially on the African continent, with prevalence rate of 6.1% in the adult population. Current treatment requires prolonged therapy (most cases for the rest of life) with the aim of stopping viral replication, maintaining immunological stability, preventing progression of liver disease and the most feared complications such as cirrhosis and hepatic cancer There are multiple references that point to ozone therapy as an alternative in the treatment of Hepatitis B, because of the known and demonstrated antimicrobial and immunomodulatory properties. With these premises, we performed the present clinical study that included 28 patients with positive diagnosis of chronic Hepatitis B, surface antigen (HVBs Ag) positive, antibodies against surface antigen (HVBs) negative, viral load (HVB DNA ) and transaminaseselevated. These patients with 1 year of evolution and antiviral treatment were treated with Major Autohemotherapy with protocol of 15 sessions and maintenance every 15 days to 50 mcg of concentration, initial dose of 4,000 mcg / ml up to 12,000 mcg /ml We indicate Ag HVBs, Ac HVBs, HVB Viral Loading and transaminases before starting treatment at 15 days of completion and quarterly until the year. The results showed negativization of the surface antigen, antibody positivity against the surface antigen, significant decrease of viral load to undetectable values and normal values of the transaminases demonstrating the functional recovery of the disease associated with favorable immunological response providing a better quality of patients' lives. Key words: Hepatitis B, Transaminases, Ozone therapy, Major Autohemotherapy, Surface antigen, Surface Antigen Antibody

Clinical study of patients with heart failure under treatment with ozone therapy

Heart failure (HF) is framed in one of the types of cardiovascular diseases; it consists of an acute and chronic form. The disease can evolve slowly from asymptomatic left ventricular dysfunction, to a state of severe disability, presenting a wide prevalence in the population around 10% in people over 70 years old. More than three-quarters of the deaths from this pathology normally occur in low or middle-income countries. Angola is not exempt from this health problem be observed in a relatively young people, bringing disability and death at an early stage of life. Scientific advances and innovative treatments for the control and prevention of the disease continue to be insufficient. The ozone for it?s antioxidant, hemorheologic properties, oxygenation enhancers and blood circulation is an alternative treatment for these patients. We have performed a study where 45 patients who were diagnosed with a chronic stage of II-III HF due to the functional classification of the New York Heart Association (NYHA) and American Cardiology College / American Heart Association (ACC / AHA), previous echocardiogram with a Fracture of Left Ventricular Ejection (LVEF) less than 45%. We administered a Major Autohemotherapy with a protocol of 15 sessions, maintenance every 15 days and cycles every 6 months at 50?g of concentration, an initial dose of 4,000 ?g / ml up to 12,000?g / ml during the 3 years of treatment. Patients after the first treatment cycle improve their functional physical capacity and LVEF increased to normal levels (55%). It was proved that Autohemotherapy is an adjuvant, viable and beneficial treatment in chronic HF. Key words: Heart failure (HF), Major Autohemotherapy, Ozone therapy, Fracture of Left Ventricular Ejectio