Uso de las TIC para la generación y divulgación de conocimiento científico por estudiantes universitarios

El ejercicio de la alfabetización científica del estudiante de nivel superior se proyecta mediante la práctica profesional, en la que se involucran las tecnologías de la información y comunicación para innovar. El objetivo del trabajo fue identificar las TIC utilizadas para la generación y divulgación de conocimiento científico por estudiantes universitarios. Se aplicó un instrumento con 69 reactivos de los que se sustrajeron 2 secciones que caracterizan el uso de las TIC y la forma en que se genera y divulga el conocimiento científico. La muestra fue no probabilística de tipo homogénea conformada por 439 estudiantes. Los resultados se presentaron mediante estadística descriptiva (frecuencias, proporciones, tasas e intervalos de confianza). Se concluye que las TIC han sido poco aprovechadas por los estudiantes, resultando poca generación de conocimiento, innovación y divulgación

Pantoea agglomerans in Immunodeficient Patients with Different Respiratory Symptoms

The aim of this paper was to determine in 32 patients from 4 different Mexican hospitals the frequency of opportunistic bacteria in the 2010 to 2011 time period. The patients were divided in 4 groups. Group 1 included 21 HIV positive patients with acute respiratory syndrome. Four HIV positive patients with tuberculosis symptoms were included in Group 2; two patients with tuberculosis symptoms and one asymptomatic person formed Group 3. Reference Group 4 included 4 patients from whom 4 strains of Mycobacterium spp. had been reported. The strains were isolated and identified by 16S rRNA gene amplification, API 20E and 50CH, biochemical test, and antibiotic sensitivity. The strains found were 10 Pantoea agglomerans, 6 Mycobacterium spp., 6 Pseudomonas spp. and 10 strains of normal floral species: Thermoactinomycetes bacterium (1), Enterococcus faecium (2), Bacillus licheniformis (1), Lactobacillus rhamnosus (2), Streptococcus oralis (2), Streptococcus anginosus (1), and Enterobacter hormaechei (1)

Elastic scattering of 8He + 208Pb at 22MeV

The dynamics of 8He around the Coulomb barrier is investigated by measuring the energy and angular distribution of the elastic 8He and the 6He and 4He fragment yields in the collision process with a 208Pb target. The experiment was carried out at SPIRAL/GANIL in October 2010. The experimental results will provide information about the relevant reaction mechanisms and the validity of the optical model (OM) when applied to exotic nuclei. In this paper, details of the experimental setup and preliminary results on the elastic scattering for the collision at 22 MeV are presented.Spanish Research Council FPA-2010-22131-CO2-01Ministry of Science and Higher Education of Poland N202 03363

Resilience in Mexican Women Who Have Experienced a Situation of Sexual Harassment

Introduction: Resilience provides victims of violence with the necessary strength to get out of difficult situations, increases self-esteem, and provides tools for women concerning the environment that surrounds them to act on it and create protective barriers. In Mexico, a high number of victims of sexual violence is established, however, no mechanisms or interventions are observed to increase resilience skills in people who have suffered some type of sexual harassment. Objective: to describe the resilience factors in a group of young people who have suffered sexual harassment. Methodology: Quantitative, observational, cross-sectional study with a descriptive scope, applied through a virtual survey using the Google Forms tool. Results: with 88 participants of which 80.7% were female, it is established that most of the subjects were at a high level of 90.9% (80), followed by a medium level of 9.1% (8); with an average of 5.79 (0.59 SD) of identification in the questions (I identify myself easily), while in the total score of 652, with a minimum of 451 and a maximum of 752. For men, the average resilience was 5.72 and for women 5.81, slightly higher. Conclusion: Resilience skills are essential to achieve a better adaptation to bullying situations, and not aggravate the consequences generated by people who exercise this type of violence

Evaluación de la ganancia de peso, en el desarrollo de núcleos de abejas (apis mellífera), mediante alimentación artificial

Food, in the bee is a technique that each day progresses more and more, in the development of new formulations, as well as energy foods, such as in protein foods, looking for the final result of the development of colonies of healthy bees, transcending directly in the nutrition of the colonies and directly influencing the nutrition of the larvae mainly. These larvae are dependent on the protein and the production of the breeding is strongly affected by the availability of this nutrient. The objective of this work was to evaluate the development of cores of bees on the basis of cores of two racks, feeding them with a power supply (Bee Pro), the treated group and a liquid feeding based on sugar, 1:1, the control group. The technique used to evaluate the development of the nuclei, it was through the weight gain (g), at the beginning of the experiment, an intermediate weight and a final weight, after three weeks. The results that were generated, show daily weight gains of 331,158 g for the control group and the control group of 165,248 g. Finally we can mention that the treated group showed significant differences with regard to the interesting witness group, being the supply of protein, essential for the development of cores of bees observing, a higher rate of oviposition by Queen, greater development in the work of beeswax and therefore the greater population. To conclude, the nuclei treaties had to be changed to breeding chambers at the end of the study, reaching the wintering grounds with very good population and observing positive effects on honey harvest of spring, being able to arrive to harvest averages of 32 kg per hive with respect to the untreated who had a production of 18 kg per hive, located in the same geographical area.La alimentación, en la apicultura es una técnica que cada día va avanzando más y más, en el desarrollo de nuevas formulaciones, tanto como alimentos energéticos, como en alimentos proteicos, buscando como resultado final el desarrollo de colonias de abejas sanas, trascendiendo directamente en la nutrición de las colonias e influyendo directamente en la nutrición de las larvas principalmente. Estas larvas son dependientes de las proteínas y la producción de la cría se encuentra fuertemente afectada por la disponibilidad de este nutriente. El objetivo de este trabajo, fue evaluar el desarrollo de núcleos de abejas partiendo de núcleos de dos bastidores, alimentándolos con una alimentación energética (Bee Pro), el grupo tratado y una alimentación liquida a base de azúcar 1:1, el grupo testigo. La técnica empleada para evaluar el desarrollo de los núcleos, fue mediante la ganancia de peso (g), al inicio del experimento, un peso intermedio y un peso final, después de tres semanas. Los resultados que se generaron, muestran ganancias de peso diarias de 331.158 g para el grupo control y para el grupo testigo de 165.248 g. Finalmente podemos mencionar que el grupo tratado mostro diferencias significativas interesantes respecto al grupo testigo, siendo la alimentación proteica, fundamental para el desarrollo de núcleos de abejas observando, una mayor tasa de oviposición por parte de la reina, mayor desarrollo en el trabajo de cera estampada y por lo tanto mayor población. Para concluir, los núcleos tratados tuvieron que ser cambiados a cámaras de cría al final del estudio, llegando a la invernada con muy buena población y observando efectos positivos en la cosecha de miel de primavera, pudiendo llegar a cosechar promedios de 32 kg por colmena con respecto a los no tratados que tuvieron una producción de 18 kg por colmena, situados en la misma zona geográfica

Near barrier scattering of 8He on 208Pb

The exotic nucleus 8He is investigated by means of the measurement of the angular distributions of the elastic channel and the 6He and 4He fragment yields produced in the collision with a 208Pb target at two energies around the Coulomb barrier, 16 and 22 MeV. The experiment was performed at the GANIL-SPIRAL facility, with the aim of extracting information about the structure of 8He and the relevant reaction mechanisms. In this contribution, details of the experimental setup and preliminary data on elastic cross sections are reporte

Multicentric study of cervical cancer screening with human papillomavirus testing and assessment of triage methods in Latin America : the ESTAMPA screening study protocol

Q1Q1Introduction Human papillomavirus (HPV) testing is replacing cytology in primary screening. Its limited specificity demands using a second (triage) test to better identify women at high-risk of cervical disease. Cytology represents the immediate triage but its low sensitivity might hamper HPV testing sensitivity, particularly in low-income and middle-income countries (LMICs), where cytology performance has been suboptimal. The ESTAMPA (EStudio multicéntrico de TAMizaje y triaje de cáncer de cuello uterino con pruebas del virus del PApiloma humano; Spanish acronym) study will: (1) evaluate the performance of different triage techniques to detect cervical precancer and (2) inform on how to implement HPV-based screening programmes in LMIC. Methods and analysis Women aged 30–64 years are screened with HPV testing and Pap across 12 study centres in Latin America. Screened positives have colposcopy with biopsy and treatment of lesions. Women with no evident disease are recalled 18 months later for another HPV test; those HPV-positive undergo colposcopy with biopsy and treatment as needed. Biological specimens are collected in different visits for triage testing, which is not used for clinical management. The study outcome is histological high-grade squamous intraepithelial or worse lesions (HSIL+) under the lower anogenital squamous terminology. About 50 000 women will be screened and 500 HSIL+ cases detected (at initial and 18 months screening). Performance measures (sensitivity, specificity and predictive values) of triage techniques to detect HSIL+ will be estimated and compared with adjustment by age and study centre. Ethics and dissemination The study protocol has been approved by the Ethics Committee of the International Agency for Research on Cancer (IARC), of the Pan American Health Organisation (PAHO) and by those in each participating centre. A Data and Safety Monitoring Board (DSMB) has been established to monitor progress of the study, assure participant safety, advice on scientific conduct and analysis and suggest protocol improvements. Study findings will be published in peer-reviewed journals and presented at scientific meetings. Trial registration number NCT01881659Revista Internacional - Indexad

Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements

Combinations of single-top-quark production cross-section measurements and vertical bar f(LV)V(tb)vertical bar determinations at root s=7 and 8 TeV with the ATLAS and CMS experiments

This paper presents the combinations of single-top-quark production cross-section measurements by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at = 7 and 8 TeV corresponding to integrated luminosities of 1.17 to 5.1 fb(-1) at = 7 TeV and 12.2 to 20.3 fb(-1) at = 8 TeV. These combinations are performed per centre-of-mass energy and for each production mode: t-channel, tW, and s-channel. The combined t-channel cross-sections are 67.5 +/- 5.7 pb and 87.7 +/- 5.8 pb at = 7 and 8 TeV respectively. The combined tW cross-sections are 16.3 +/- 4.1 pb and 23.1 +/- 3.6 pb at = 7 and 8 TeV respectively. For the s-channel cross-section, the combination yields 4.9 +/- 1.4 pb at = 8 TeV. The square of the magnitude of the CKM matrix element V-tb multiplied by a form factor f(LV) is determined for each production mode and centre-of-mass energy, using the ratio of the measured cross-section to its theoretical prediction. It is assumed that the top-quark-related CKM matrix elements obey the relation |V-td|, |V-ts| << |V-tb|. All the |f(LV)V(tb)|(2) determinations, extracted from individual ratios at = 7 and 8 TeV, are combined, resulting in |f(LV)V(tb)| = 1.02 +/- 0.04 (meas.) +/- 0.02 (theo.). All combined measurements are consistent with their corresponding Standard Model predictions.Peer reviewe

Gestión del conocimiento: perspectiva multidisciplinaria. Volumen 12

El libro “Gestión del Conocimiento. Perspectiva Multidisciplinaria”, Volumen 12, de la Colección Unión Global, es resultado de investigaciones. Los capítulos del libro, son resultados de investigaciones desarrolladas por sus autores. El libro cuenta con el apoyo de los grupos de investigación: Universidad Sur del Lago “Jesús María Semprúm” (UNESUR), Zulia – Venezuela; Universidad Politécnica Territorial de Falcón Alonso Gamero (UPTAG), Falcón – Venezuela; Universidad Politécnica Territorial de Mérida Kleber Ramírez (UPTM), Mérida – Venezuela; Universidad Guanajuato (UG) - Campus Celaya - Salvatierra - Cuerpo Académico de Biodesarrollo y Bioeconomía en las Organizaciones y Políticas Públicas (C.A.B.B.O.P.P), Guanajuato – México; Centro de Altos Estudios de Venezuela (CEALEVE), Zulia – Venezuela, Centro Integral de Formación Educativa Especializada del Sur (CIFE - SUR) - Zulia - Venezuela, Centro de Investigaciones Internacionales SAS (CIN), Antioquia - Colombia.y diferentes grupos de investigación del ámbito nacional e internacional que hoy se unen para estrechar vínculos investigativos, para que sus aportes científicos formen parte de los libros que se publiquen en formatos digital e impreso