4,697 research outputs found
Geomorphology of the northern sector of the Alfambra- Teruel depression (Iberian Ranges, NE Spain)
The area of Alfambra (NE Spain) is very representative of the relief evolution of the Eastern Iberian ranges. It contains the main geomorphological elements that illustrate this evolutionary process. The geomorphological cartography includes the northern sector of the Alfambra-Teruel Neogene depression and its mountainous surroundings. The cartographic process started by using aerial photographs (1:30000 scale) and fieldwork. Later, the document was projected to the UTM Zone 30 system with ETRS_1989 Datum introduced to ArcGIS 10.1. The legend follows a chronological order. The structural reliefs, erosion surfaces, karst landforms, Quaternary pediments and terraces, and fluvial network are represented over a lithological background. The main cartography is complemented with two maps of lithological and geomorphological units. The obtained information enabled the main geological and geomorphological stages of the regional relief to be established.Fil: Sánchez Fabre, Miguel. Universidad de Zaragoza. Facultad de Filosofía y Letras; EspañaFil: Peña Monné, José Luis. Universidad de Zaragoza. Facultad de Filosofía y Letras; EspañaFil: Sampietro Vattuone, Maria Marta. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Laboratorio de Geoarqueología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentin
Rainwater Harvesting for Agricultural Irrigation: An Analysis of Global Research
Within a context of scarce water resources for agriculture, rainwater harvesting constitutes a promising alternative that has been studied by different disciplines in recent years. This article analyses the dynamics of global research on rainwater harvesting for agricultural irrigation over the last two decades. To do this, qualitative systematic analysis and quantitative bibliometric analysis have been carried out. The results reveal that this line of research is becoming increasingly important within research on irrigation. Environmental sciences and agricultural and biological sciences are the most relevant subject areas. Agricultural Water Management, Physics and Chemistry of the Earth, and Irrigation and Drainage are the journals that have published the most articles on the subject. India, China, the United States (USA), South Africa, and the Netherlands are the countries that lead this line of research. Although significant progress has been made in this subject area, it is necessary to increase the number of studies on the capacity of rainwater harvesting systems to cover irrigation needs in different farming contexts, the factors that determine their adoption by farmers, the economic and financial feasibility of their implementation, and their contribution to mitigating global climate change
Psychological Factors that Lessen the Impact of COVID-19 on the Self-Employment Intention of Business Administration and Economics’ Students from Latin America
The 2019 coronavirus disease epidemic (Covid-19) is a public health emergency
of international concern and poses a challenge to the labor market. The pandemic has a devastating
and disproportionate e ect on young workers, their interest in entrepreneurship, and their mental
health. Research is needed to develop evidence-based strategies to improve coping and reduce adverse
psychological problems. The objective of this study was to analyze the impact that Covid-19 pandemic
perception and psychological need satisfaction have on university students and their self-employment
intention. In addition, we also analyzed the role of moderation played by psychological aspects.
These psychological factors (i.e., Optimism and Proactiveness) can also improve young people’s
mental health and well-being. Methods: An explorative study (online survey) was conducted
in March 2020 934 university students from Latin America. Regression analysis models were
built to examine the relationships between Covid-19 pandemic perception, personality variables,
and entrepreneurial intention. Mediation models, through the bootstrapping method, were performed
to analyze the mediating role of proactiveness and optimism. Results: Results indicate that students’
perception of Covid-19 and psychological need satisfaction are associated with entrepreneurial
intention. Additionally, the present study argues that proactiveness and optimism mediate these
relationships. Conclusions: This study identifies psychological factors associated with a lower level of
Covid-19 impact and that can be used for psychological interventions that result in an improvement
in the mental health of these vulnerable groups during and after the Covid-19 pandemic. Theoretical
and practical implications are discussed
Multi-temporal evaluation of soil moisture and land surface temperature dynamics using in situ and satellite observations
Soil moisture (SM) is an important component of the Earth’s surface water balance and by extension the energy balance, regulating the land surface temperature (LST) and evapotranspiration (ET). Nowadays, there are two missions dedicated to monitoring the Earth’s surface SM using L-band radiometers: ESA’s Soil Moisture and Ocean Salinity (SMOS) and NASA’s Soil Moisture Active Passive (SMAP). LST is remotely sensed using thermal infrared (TIR) sensors on-board satellites,
such as NASA’s Terra/Aqua MODIS or ESA & EUMETSAT’s MSG SEVIRI. This study provides an assessment of SM and LST dynamics at daily and seasonal scales, using 4 years (2011–2014) of in situ and satellite observations over the central part of the river Duero basin in Spain. Specifically, the agreement of instantaneous SM with a variety of LST-derived parameters is analyzed to better understand the fundamental link of the SM–LST relationship through ET and thermal inertia.
Ground-based SM and LST measurements from the REMEDHUS network are compared to SMOS SM and MODIS LST spaceborne observations. ET is obtained from the HidroMORE regional hydrological model. At the daily scale, a strong anticorrelation is observed between in situ SM and maximum LST (R ˜ -0.6 to -0.8), and between SMOS SM and MODIS LST Terra/Aqua day (R ˜ - 0.7). At
the seasonal scale, results show a stronger anticorrelation in autumn, spring and summer (in situ R ˜ -0.5 to -0.7; satellite R ˜ -0.4 to -0.7) indicating SM–LST coupling, than in winter (in situ R ˜ +0.3; satellite R ˜ -0.3) indicating SM–LST decoupling. These different behaviors evidence changes from water-limited to energy-limited moisture flux across seasons, which are confirmed by
the observed ET evolution. In water-limited periods, SM is extracted from the soil through ET until critical SM is reached. A method to estimate the soil critical SM is proposed. For REMEDHUS, the critical SM is estimated to be ~0.12 m3/m3
, stable over the study period and consistent between in situ and satellite observations. A better understanding of the SM–LST link could not only help improving the representation of LST in current hydrological and climate prediction models, but also refining SM retrieval or microwave-optical disaggregation algorithms, related to ET and vegetation status.Peer ReviewedPostprint (published version
University students involved in a sustainable world: assessing sustainable consumption in Spain
Purpose – To achieve sustainable development to protect the environment and society, an increasing
number of scholars have conducted in-depth research on sustainable and responsible consumption behaviors.
The outputs demonstrate that consumers are increasingly concerned and aware of the issues associated with
the excessive use of resources. The purpose of this paper is to analyze the validity and reliability of the
Sustainable Consumption Scale (SC-S) in the Spanish context.
Design/methodology/approach – The adaptation of SC-S to Spanish was carried out in accordance
with international methodological standards. The Spanish version of this scale was applied empirically to the
research sample was composed of 962 university students (49.1% male and 50.9% female) from 54
Universities in 15 regions of Spain that participated in the study.
Findings – The analyses carried out to verify the psychometric properties retained 16 items from the
original proposal, grouped equally in three factors: Cognitive – six items; Affective – seven items; and
Conative – four items. The scale presented adequate adjustment indexes, as well as optimal values of the
different measures of reliability, recommended by the literature.
Originality/value – This instrument can be used by the Spanish academic community, which will contribute
to the assessment and prediction regarding a sustainable consumption attitude. From these screenings, it will be
also possible to understand the impact and development of the objectives outlined byAgenda 2030
Sustainable Irrigation in Agriculture: An Analysis of Global Research
Irrigated agriculture plays a fundamental role as a supplier of food and raw materials. However, it is also the world’s largest water user. In recent years, there has been an increase in the number of studies analyzing agricultural irrigation from the perspective of sustainability with a focus on its environmental, economic, and social impacts. This study seeks to analyze the dynamics of global research in sustainable irrigation in agriculture between 1999 and 2018, including the main agents promoting it and the topics that have received the most attention. To do this, a review and a bibliometric analysis were carried out on a sample of 713 articles. The results show that sustainability is a line of study that is becoming increasingly more prominent within research in irrigation. The study also reveals the existence of substantial differences and preferred topics in the research undertaken by different countries. The priority issues addressed in the research were climatic change, environmental impact, and natural resources conservation; unconventional water resources; irrigation technology and innovation; and water use efficiency. Finally, the findings indicate a series of areas related to sustainable irrigation in agriculture in which research should be promoted
Composition variation of the essential oil from Ocimum basilicum L. cv. Genovese Gigante in response to Glomus intraradices and mild water stress at different stages of growth
In this study, a factorial experiment was carried out to investigate the effect of AMF (arbuscular mycorrhizal fungi) and water stress on the quality of fresh plants (through the analysis of essential oil composition) and also on the morphological characteristics (in terms of biomass) of basil (Ocimum basilicum L. cv. Genovese Gigante). The factors included an arbuscular mycorrhizal fungus inoculation (Glomus intraradices), irrigation level (mild water stress, 60% Field capacity) and the interaction of both AMF and water stress. In addition, the effects of harvesting at two different developmental stages were assessed with respect to the plants tolerance to abiotic stress and the quality of the fresh plant. The main essential oil (EO) constituents for this cultivar were eugenol, which varied between 7.1 and 50.8%, and linalool, 17.0–54.7%, in all the samples. The highest relative amount of eugenol (50.8%) was obtained during the vegetative stage in plants under water stress whereas samples from the control presented 16.2% for this compound. The samples which were significantly different from the control samples were the WS (water stress) samples from the vegetative stage. Additionally, this study suggests that AMF plants offset the adverse effect of water stress. In this context, and since the interaction of AMF and water stress did not significantly change the fresh plant quality, i.e. the essential oil profile in both stages of development, it is worthwhile considering this method of production. Finally, this experiment permitted an understanding of the stressor thresholds of the species used and also that, compensatory responses occur at different time scales, including between generations and also during development (developmental plasticity)info:eu-repo/semantics/publishedVersio
Ambrosia artemisiifolia L., nueva especie para la flora alóctona invasora de Andalucía (España)
Ambrosia artemisiifolia, a new species for the aloctonous invasive flora of Andalusia (Spain)Palabras clave. Ambrosia artemisiifolia, planta invasora, Andalucía, España.Key words. Ambrosia artemisiifolia, invasive plant, Andalusia flora, Spain
Systematic Review of Socio-Emotional Values Within Organizations
The theory of separation assumes, with provocation, that an organization cannot
reconcile profits and social function. Organizations can reconcile these two, apparently
contrasting, missions, by considering emotions, especially moral emotions, to create
a genuine motivation for focusing on goals beyond simple economic earnings and
protecting organizations or groups of people from dysfunctional attitudes and behaviors,
as well as considering the important role of the stakeholder accountability. Using the
PRISMA method, we created a review of records using keywords relating to a socioemotional
value within organizations, with a particular focus on the last 20 years.
We used the SCOPUS database and, after removing irrelevant records, we used the
VOSviewer tool to create a cluster map of different areas in this topic. Some records
cite the socio-emotional value that is related to organizational and employee suffering,
while other articles consider it a positive factor that improves performance and prevents
problems in organizations
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