Search results for "Q1"
showing 10 items of 447 documents
Testing the recoverability of grass DNA transferred to textiles for forensic purpose
2010
Botanical evidence such as grass stains on textiles is sometimes present in the crime scene and can allow investigators to establish an association between persons linked to the criminal event and the crime scene. In this study, extraction of grass DNA from stains on textiles was undertaken. DNA extraction was performed on four grass species conserved both indoors and outdoors for 7, 14 and 30 days after staining. Once the extracted DNA was quantified, a polymerase chain reaction (PCR) amplifying a fragment of the internal transcribed spacer was performed.DNA extraction was successful in 97.5% of samples. No significant differences in the amount of extracted DNA were detected among species …
Prolonging in utero-like oxygenation after birth diminishes oxidative stress in the lung and brain of mice pups☆
2013
Background Fetal-to-neonatal transition is associated with oxidative stress. In preterm infants, immaturity of the antioxidant system favours supplemental oxygen-derived morbidity and mortality. Objectives To assess if prolonging in utero-like oxygenation during the fetal-to-neonatal transition limits oxidative stress in the lung and brain, improving postnatal adaptation of mice pups. Material and methods Inspiratory oxygen fraction (FiO2) in pregnant mice was reduced from 21% (room air) to 14% (hypoxia) 8–12 h prior to delivery and reset to 21% 6–8 h after birth. The control group was kept at 21% during the procedure. Reduced (GSH) and oxidized (GSSG) glutathione and its precursors [γ-glut…
Enseñanza de las ciencias : revista de investigación y experiencias didácticas
2021
This research focuses on teacher training in the Master's Degree in Secondary Educa- tion Teaching. The teaching guides of the specialisations of Biology and Geology and Physics and Che- mistry of the Master's Degree were analysed in order to know to what extent Education for Sustaina- bility (EfS) is present. Collaborative teams of teachers were arranged so as to promote the acquisition of competences in Sustainability among the training goals and to encourage resources and procedures for their effective achievement. This paper includes contributions that try to promote attention to EfS in Secondary School teacher training. Esta investigación se enmarca en la formación del profesorado en e…
Description of movement sensor dataset for dog behavior classification
2022
The description and results of the original investigation are found in: Dog behaviour classification with movement sensors placed on the harness and the collar, Kumpulainen, P., Valldeoriola Cardó, A., Somppi, S., Törnqvist, H., Väätäjä, H., Majaranta, P., Gizatdinova, Y., Antink, C. H., Surakka, V., V. Kujala, M., Vainio, O. & Vehkaoja, A., Aug 2021, In: Applied Animal Behaviour Science. 241, 7 p., 105393. Movement sensor data from seven static and dynamic dog behaviors (sitting, standing, lying down, trotting, walking, playing, and (treat) searching i.e. sniffing) was collected from 45 middle to large sized dogs with six degree-of-freedom movement sensors attached to the collar and the ha…
Enseñanza de las ciencias : revista de investigación y experiencias didácticas
2021
Son frecuentes las aproximaciones cualitativas e intuitivas que se hacen en la escuela sobre el movimiento aparente del Sol por el firmamento que tratan de proporcionar al alumnado observaciones para que construya un modelo del sistema Sol-Tierra. El presente trabajo muestra la forma de obtener datos con mayor exactitud de manera que faciliten al alumnado una visión más amplia y profunda de dicho modelo, que lo capacite para enfrentarse y resolver problemas cotidianos y los pueda aplicar a diferentes contextos, como el cuestionamiento de situaciones sociales en las que interviene la luz solar. There are common the intuitive and qualitative approaches made in the School on the apparent movem…
Validation of a set of reference genes to study response to herbicide stress in grasses
2012
Abstract Background Non-target-site based resistance to herbicides is a major threat to the chemical control of agronomically noxious weeds. This adaptive trait is endowed by differences in the expression of a number of genes in plants that are resistant or sensitive to herbicides. Quantification of the expression of such genes requires normalising qPCR data using reference genes with stable expression in the system studied as internal standards. The aim of this study was to validate reference genes in Alopecurus myosuroides, a grass (Poaceae) weed of economic and agronomic importance with no genomic resources. Results The stability of 11 candidate reference genes was assessed in plants res…
El macrotexto poético : claves para su determinación metodológica
2016
Toda metodología está llamada a abrir nuevos horizontes de lectura a quienes se acercan a leer poesía con mayor o menor intención analítica. Sin embargo, curiosamente dichos métodos han dejado de lado, en buena parte, a una realidad compositiva altamente demostrada y recurrente: los macrotextos poéticos. Se propone en este breve trabajo dar algunas de las claves metodológicas y terminológicas para analizarlos con cierta atención y profundidad, entendiendo, además, que este tipo de libros abundan en la literatura hispanoamericana a pesar de la escasa atención recibida. Sin la pretensión de querer establecer aquí un corpus poético suficientemente relevante, hemos querido aplicar, de manera or…
La contabilidad de las cooperativas al día
2003
The proposal of an adaptation of the National Accounting System (PGC) for the Cooperative sector has seen fruition in a Project, currently at the draft stage, published by the Instituto de Contabilidad y Auditoría de Cuantas (ICAC) and disseminated in several forums with the aim of: being spread in co-operative circles, giving sufficient time to take on the changes implied in adopting the project, debating the new aspects and proposing alternative solutions, among others. This paper aims to provide a critical commentary for some of the more controversial aspects the new regulations raise.
El régimen económico de las sociedades cooperativas: situación actual y apuntes para una reforma
2007
The transitional situation of accounting in the European Union, assuming that an international approach exists, involves highly significant changes in Spain’s legislation on companies and accounting. In fact, reforms have been drawn up that affect accounting aspects of the Code of Commerce and therefore the General Accounting Plan, which will have a bearing on the relatively recently approved adaptation of accounting to the cooperative sector in the form of Order 3614 / 2003 issued by the Ministry of Economy on 16 December. From the economic, financial and accounting point of view it can be seen that there are discrepancies in the criteria of the laws governing cooperatives, which in some c…
El cooperativismo en la historia de la literatura económica
2003
Economic literature first turned its attention to the co-operative movement in the period of the flowering of classical political economics. From then on and to the present day, co-operatives have aroused the interest of the different currents of economic thought. In this article we review the analysis made of the co-operatives and their function in the economic system through the economic literature of the last two hundred years.