1,758 research outputs found
Out of the Shadows: Women of the FMLN Guerrilla Army in El Salvador’s Civil War, 1979–1992
Over the course of a century, revolutionary movements have emerged every few years across the region of Central America, movements that fought for overturning dictatorships and confronting socio-economic inequalities. Women experience higher levels of poverty, human rights violations and discrimination due to gender inequalities. Representing 30% of the FMLN guerrilla army, women in El Salvador took a quantum leap into one of the most horrific and violent armed conflicts in the history of the country (Montgomery 123). Theorists have sought to explain why women became involved in the war. Experts of insurgent collective action agree that women\u27s participation played a significant role in the revolutionary movement. Women served as party leaders, guerrilla fighters, doctors, radio respondents and care takers (Viterna 58). However, most theories also differ as to the motivations behind their participation. The following thesis will examine the political and socio-economic roots and movements responsible for creating a peasant uprising and forming the FMLN, particularly how women of El Salvador formed a revolutionary movement in a patriarchic country controlled by an anti-democratic, military regime. The following pages will examine how and why they became involved and the impact their participation had on civil society post-war
Understanding pragmatic uses of cuss words: The influence of age, gender, and first language background
Quantification of uranium-238 in environmental samples using gamma-ray spectrometry
A large number of environmental samples are routinely measured world-wide using gamma-ray spectrometry some of its assets being easy sample preparation and comprehensive data for many radionu-clides in one analysis. Although other techniques can be considered more suitable for analysing 238U in environmental samples, it is also routinely done by gamma-ray spectrometry. One mainly uses γ-ray emissions following the decay of the first daughter, 234Th, for determining the 238U activity. However, the low-energy gamma-rays at 63 keV and 92.5 keV are very difficult to quantify in a robust way due to high attenuation and interferences. This paper quantifies parameters affecting the possibility of making robust quantification of 238U via 234Th using gamma-ray spectrometry. It addresses the use of correct decay data, suitable detectors, optimised sample size, enhanced spectral amplification, correction for peak interferences and control of background.JRC.D.4-Standards for Nuclear Safety, Security and Safeguard
Perceptions on the management, exposure, biosafety and handling of cytostatics in the nursing staff of a private health institution in the Autonomous City of Buenos Aires
ArtÃculo[ES] Introducción: El profesional de enfermerÃa oncológica es formado con conocimientos sobre el cáncer, modalidades de tratamiento, escenarios de cuidado del paciente. El riesgo a la exposición resultante de la manipulación de los citostáticos puede afectar la salud de los agentes sanitarios. Objetivo: describir las medidas de bioseguridad para la manipulación de citostáticos y los signos clÃnicos y sÃntomas producto de la exposición a estos medicamentos en el personal de enfermerÃa de una institución de salud privada de la Ciudad Autónoma de Buenos Aires. Métodos: Se realizó un estudio observacional, descriptivo, de corte transversal, retrospectivo. La muestra estuvo conformada por 31 profesionales de enfermerÃa. Como instrumento recolección de datos se utilizó el propuesto por Villa y Varela-DÃaz (2020), este instrumento registra datos sociodemográficos, laborales, de salud y sobre medidas de bioseguridad. Resultados: La muestra estuvo confirmada por un 74,2% del sexo femenino, la edad promedio fue de 37,67±6,79, el 58,1% era Licenciado/a en EnfermerÃa, con una experiencia promedio en oncologÃa de 4,06±4,09. El 96,8 % de los participantes administraba citostáticos y el 51,6 % participaba en el desecho. Los principales sÃntomas reportados fueron la cefalea y el dolor abdominal con 64,5% y 45,2% respectivamente. El 41,9% refiere la realización de exámenes paraclÃnicos y control por parte de la institución. Conclusiones: El personal de enfermerÃa está expuesto a altos riesgos laborales cuando se trata de citostáticos. Se requiere el cumplimiento de los protocolos el manejo y descarte, con la finalidad de elevar los estándares de seguridad del paciente y seguridad laboral. [EN] Introduction: The oncology nurse practitioner is trained with knowledge about cancer, treatment modalities, patient
care scenarios. The risk to exposure resulting from handling cytostatics can affect the health of healthcare workers. Objective: to describe the biosafety measures for handling cytostatics and the clinical signs and symptoms resulting from exposure to these drugs in the nursing staff of a private health care institution in the Autonomous City of Buenos Aires. Methods: An observational, descriptive, retrospective, cross-sectional, retrospective study was carried out. The sample consisted of 31 nursing professionals. The data collection instrument used was the one proposed by Villa and Varela-DÃaz (2020), which records sociodemographic, occupational, health and biosafety measures data. Results: The sample was 74.2% female, the average age was 37.67±6.79, 58.1% had a Bachelor’s degree in Nursing, with an average experience in oncology of 4.06±4.09. Of the participants, 96.8% administered cytostatics and 51.6% were involved in disposal. The main symptoms reported were headache and abdominal pain with 64.5% and 45.2% respectively. 41.9% referred to paraclinical examinations and control by the institution. Conclusions: Nursing personnel are exposed to high occupational risks when dealing with cytostatics. Compliance with protocols for handling and disposal is required in order to raise patient safety and occupational safety standards.S
Effect of free-ranging cattle on mammalian diversity: an Austral Yungas case study
Extensive cattle ranging is an important economic activity in mountains, with diverse effects on native mammal communities. The effects of cattle Bos taurus can be negative, positive or neutral, mostly depending on the stocking rate. We examined the effect of cattle on the diversity and abundance of native mammalian species in the Austral Yungas region of Argentina, considering environmental variables, land protection status, and human influence. Using 12,512 trap-nights from 167 camera-trap stations over 11 years (2009-2019), we calculated a relative abundance index using camera events and used generalized linear models to estimate the effect of cattle on small mammals, large herbivores, species of conservation concern and felids. Cattle had different effects on each group of native mammals. We observed a lower abundance of large native herbivores and the absence of small mammals in areas with high cattle abundance. The tapir Tapirus terrestris, jaguar Panthera onca and white-lipped peccary Tayassu pecari are rare in the Yungas and therefore potentially vulnerable to extinction there. Conservation of small felids and low cattle abundance could be compatible, but felids are threatened by other anthropogenic influences. Native mammalian diversity and richness were related to land protection status. The entire ecoregion is potentially suitable for cattle, suggesting the potential for further threats, and that cattle should be excluded from strictly protected areas. To ensure extensive cattle ranging is compatible with wildlife conservation in areas where exclusion is not possible, we recommend improved management of cattle and moderate stocking rates.Fil: Cuyckens, Griet An Erica. Universidad Nacional de Jujuy; Argentina. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; ArgentinaFil: Gonzalez Baffa Trasci, Noelia Viviana. Universidad Nacional de Jujuy; Argentina. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; ArgentinaFil: Perovic, Pablo Gastón. Administración de Parques Nacionales; ArgentinaFil: Malizia, Lucio Ricardo. Universidad Nacional de Jujuy; Argentina. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; Argentin
Discovery of a White Dwarf Companion to HD 159062
We report on the discovery of a white dwarf companion to the nearby late G
dwarf star, HD 159062. The companion is detected in 14 years of precise radial
velocity (RV) data, and in high-resolution imaging observations. RVs of HD
159062 from 2003-2018 reveal an acceleration of ,
indicating that it hosts a companion with a long-period orbit. Subsequent
imaging observations with the ShaneAO system on the Lick Observatory 3-meter
Shane telescope, the PHARO AO system on the Palomar Observatory 5-meter
telescope, and the NIRC2 AO system at the Keck II 10-meter telescope reveal a
faint companion 2.7'' from the primary star. We performed relative photometry,
finding magnitudes,
magnitudes, and magnitudes for the companion from
these observations. Analysis of the radial velocities, astrometry, and
photometry reveals that the combined data set can only be reconciled for the
scenario where HD 159062 B is a white dwarf. A full Bayesian analysis of the RV
and imaging data to obtain the cooling age, mass, and orbital parameters of the
white dwarf indicates that the companion is an old white dwarf with an orbital period of years, and a cooling age of Gyr.Comment: 10 pages, 9 figure
Status of Underground Radioactivity Measurements in HADES
The IRMM (Institute for Reference materials and Measurements) performs ultra low-level gamma-ray spectrometry at a depth of 225 m in the underground laboratory HADES. The facility currently houses 7 HPGe-detectors that are built and shielded using specially selected radiopure materials. The sandclay overburden of about 500 m water equivalent assures a muon flux reduction factor of about 5000, with
subsequent reduction of the background of the detectors, which makes it possible to obtain detection limits close to 100 µBq for certain radionuclides. This paper describes the aim of the IRMM activities in the HADES laboratory, the equipment and the measurement program and gives examples of radiopurity measurements carried out in order to develop better low-level measurements.JRC.DG.D.5-Nuclear physic
Inferring the Provenance of an Alien Species with DNA Barcodes: The Neotropical Butterfly Dryas iulia in Thailand
The Neotropical butterfly Dryas iulia has been collected from several locations in Thailand and Malaysia since 2007, and has been observed breeding in the wild, using introduced Passiflora foetida as a larval host plant. The butterfly is bred by a butterfly house in Phuket, Thailand, for release at weddings and Buddhist ceremonies, and we hypothesized that this butterfly house was the source of wild, Thai individuals. We compared wing patterns and COI barcodes from two, wild Thai populations with individuals obtained from this butterfly house. All Thai individuals resemble the subspecies D. iulia modesta, and barcodes from wild and captive Thai specimens were identical. This unique, Thai barcode was not found in any of the 30 specimens sampled from the wild in the species\u27 native range, but is most similar to specimens from Costa Rica, where many exporting butterfly farms are located. These data implicate the butterfly house as the source of Thailand\u27s wild D. iulia populations, which are currently so widespread that eradication efforts are unlikely to be successful
Understanding Sow Sexual Behavior and the Application of the Boar Pheromone to Stimulate Sow Reproduction
In this chapter, we review the sexual behavior of domestic pigs, and the visible or measurable anatomical features of the pig that will contribute to detecting sows in estrus. We also summarize olfactory organs, and the effects of a sexual pheromone on pig’s biology and sow reproductive performance. We discuss the role of a live boar in the heat detection where the female is in breeding crates. However, there is an increasing interest in being able to breed sows without a boar present. Farm workers must be trained on the fine points of estrus detection so that they can work in a safe and productive setting. After a review of olfactory biology of the pig, the chapter explains how new pheromonal technology, such as BOARBETTER®, aids in the process of heat detection with or without a live boar. To achieve reproductive success, the persons breeding must assimilate all fine points of pig sexual behavior and possess a clear understanding of what they should be looking for in each sow they expect to breed
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