Results 11 to 20 of about 29,676 (185)

Effect of Ozonated Fertigation in Pepper Cultivation under Greenhouse Conditions

open access: yesAgronomy, 2021
Ozone has a high oxidizing power avoiding the presence of residues, so it is a good candidate for use in organic farming. However, its application in fertigation has been little studied.
Julian Colunje   +3 more
doaj   +1 more source

The Effects of COVID-19 in the Learning Process of Primary School Students: A Systematic Review

open access: yesEducation Sciences, 2021
(1) Background: A variety of social and economic changes are happening worldwide due to the pandemic caused by COVID-19, which has produced new problems and challenges for the population as a whole.
José Jesús Sánchez Amate   +3 more
doaj   +1 more source

Cross-sectional study of aggression against Spanish nursing personnel and effects on somatisation of physical symptoms

open access: yesBMJ Open, 2020
Introduction Violence against nursing personnel in their place of work is a severe problem generating important consequences for these workers. Even though there is a large body of research on the subject, the emotional impact of aggression against ...
María del Carmen Pérez-Fuentes   +5 more
doaj   +1 more source

Development and Application of an Open Power Meter Suitable for NILM

open access: yesInventions, 2023
In the context of the global energy sector’s increasing reliance on fossil fuels and escalating environmental concerns, there is an urgent need for advancements in energy monitoring and optimization.
Carlos Rodríguez-Navarro   +4 more
doaj   +1 more source

Secure Group Communications Using Twisted Group Rings

open access: yesMathematics, 2022
In this paper we introduce a Group Key Management protocol following the idea of the classical protocol that extends the well-known Diffie–Hellman key agreement to a group of users. The protocol is defined in a non-commutative setting, more precisely, in
María Dolores Gómez Olvera   +2 more
doaj   +1 more source

An Open Hardware Design for Internet of Things Power Quality and Energy Saving Solutions

open access: yesSensors, 2019
An important challenge for our society is the transformation of traditional power systems to a decentralized model based on renewable energy sources. In this new scenario, advanced devices are needed for real-time monitoring and control of the energy ...
Eduardo Viciana   +5 more
doaj   +1 more source

Quality of life in elderly men after a radical prostatectomy. A qualitative study [PDF]

open access: yesJournal of Men's Health, 2023
Prostate cancer is the second most frequent cancer in Spain. One of its main treatments is radical prostatectomy. This intervention generates a series of physical and psychological consequences in the patient that result in reducing their quality of ...
Lucía Victoria García-Rodelas   +5 more
doaj   +1 more source

The psychological type profile of Anglican churchgoers in England : compatible or incompatible with their clergy? [PDF]

open access: yes, 2011
In this study psychological type theory was employed to profile samples of 2,135 women and 1,169 men in the context of Anglican church services in England in order to establish how representative churchgoers are of the wider population and how compatible
Craig, Charlotte L.   +2 more
core   +1 more source

Carbon dioxide concentration in Mediterranean greenhouses : how much lost production? [PDF]

open access: yes, 2007
In the absence of artificial supply of carbon dioxide in the greenhouse environment, the CO2 absorbed in the process of photosynthesis must ultimately come from the external ambient through the ventilation openings.
Dimauro, B.   +3 more
core   +3 more sources

Bioactives Overproduction through Operational Strategies in the Ichthyotoxic Microalga Heterosigma akashiwo Culture

open access: yesToxins, 2023
The red tide-forming microalga Heterosigma akashiwo has been associated with massive events of fish deaths, both wild and cultured. Culture conditions are responsible for the synthesis or accumulation of some metabolites with different interesting ...
Adrián Macías-de la Rosa   +7 more
doaj   +1 more source

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