Search results for "Sida"

Effects of a glyphosate-based herbicide on survival and oxidative status of a non-target herbivore, the Colorado potato beetle (Leptinotarsa decemlin…

2018

Abstract Glyphosate is the globally most used herbicide against a wide range of weeds. Glyphosate has been considered safe to animals as it mainly targets physiological pathways in plants. However, recent toxicological studies have revealed that glyphosate can cause various toxic effects also on animals. In this study, we investigated the direct toxic effects of a glyphosate-based herbicide (GBH, Roundup® Bio) on 1) survival and 2) oxidative status of a non-target herbivore by using Colorado potato beetles (Leptinotarsa decemlineata), originating from Poland and USA, as model species. Larvae were randomly divided into three groups: 1) high concentration (100% Roundup Bio, 360 g/l), 2) low c…

Toxicological and bioactivity evaluation of blackcurrant press cake, sea buckthorn leaves and bark from Scots pine and Norway spruce extracts under a…

2021

Aqueous extracts from blackcurrant press cake (BC), Norway spruce bark (NS), Scots pine bark (SP), and sea buckthorn leaves (SB) were obtained using maceration and pressurized hot water and tested for their bioactivities. Maceration provided the extraction of higher dry matter contents, including total phenolics (TPC), anthocyanins, and condensed tannins, which also impacted higher antioxidant activity. NS and SB extracts presented the highest mean values of TPC and antioxidant activity. Individually, NS extract presented high contents of proanthocyanidins, resveratrol, and some phenolic acids. In contrast, SB contained a high concentration of ellagitannins, ellagic acid, and quercetin, exp…

Evaluación antropométrica del estado nutricional y estimación de las ingestas de hierro y de vitamina C de mujeres posmenopáusicas y hombres mayores …

2001

Carmen.Vidal@uv.es Objetivo: Evaluación del estado nutricional de mujeres posmenopáusicas y hombres mayores de 45 años, mediante medidas antropométricas, y estimación de las fuentes e ingestas dietéticas de hierro y de vitamina C. Material y métodos: Participan en el estudio 125 hombres y 176 mujeres de 40 a 93 años procedentes de dos Centros de Salud y del Centro de Hemodonación de Cartagena (Murcia). Se realiza una valoración antropométrica y una encuesta alimentaria de frecuencia de consumo de alimentos durante el último mes. Los contenidos de hierro y de vitamina C se obtienen de las tablas de composición de alimentos españoles. Para evaluar la dieta con respecto al hierro y la vitamina…

Revista electrónica de investigación y evaluación educativa

2006

The investigation results are presented: "An investigation or research about the most relevant variables from the student’s point of view which influence the general opinion about the teacher’s performance in the Universidad Autonoma de Occidente". The problems about the influence from the students perception in evaluating their teachers is taken on from two complementary perspectives: The first constitutes the qualitative analysis which has as a support the group interviews realized in each one of the academic programs. The second involves the quantitative analysis based on multivariate statistic tools. These perspectives allow elaborating a model to establish the grade of relevance each o…

Educar

2015

El presente artículo describe una experiencia de formación en alternancia en un contexto de educación superior; en concreto, a partir de la iniciativa desarrollada por Florida Universitaria, centro adscrito a la Universidad de Valencia. La formación en alternancia implica alternar el aprendizaje entre períodos desarrollados en el centro educativo y momentos desarrollados en el contexto laboral. El objetivo del presente trabajo es identificar una iniciativa que, de forma empírica, muestre cómo estos periodos impactan en el aprendizaje de competencias de los estudiantes. La metodología que se ha aplicado en la experiencia de formación en alternancia se basa en el aprendizaje basado en problem…

Las competencias básicas en la nueva generación de estudiantes universitarios: Una experiencia de Innovación.

2017

[EN] This contribution presents an innovative teaching experience dedicated to developing core competencies in the university student by activating educational practices and evaluation procedures that seek to promote and maximize various competitions. This experiencie has been implemented in different degrees of the University of Valencia during the academic years 2011-12, 2012-13, 2013-14 and 2014-15. Participating in the study 1285 students through accidental sampling accessibility. After developing a survey methodology based on descriptive-exploratory analyzes data collected allow us to know what is the degree of control perceived by university students around the following core competen…

Skujkoku bioloģiski aktīvās vielas saturošo produktu terapeitiskais pielietojums un pircēju viedokļa izvērtējums aptiekās

2019

Skujkoki ir bagāti ar dažādiem bioloģiski aktīviem savienojumiem – ar tādiem kā bioflavonoīdi, polifenoli, poliprenoli, doliholi, tannīni un daudziem citiem, tāpēc to izmantošanas un iestrādes iespējas jaunās formulācijās ir plašas un daudzsološas. Pētījumā secināts, ka Latvijas sabiedrībā trūkst informētības par dažādām skujkoku aktīvo vielu īpašībām, kas potenciāli spētu uzlabot sabiedrības veselību, kā arī ir novērojams svarīgu zināšanu trūkums attiecībā uz bieži izplatītām saslimšanām un atbilstošu rīcību slimības gadījumā. Darba mērķis ir identificēt skujkokos esošās aktīvās vielas, noskaidrot to potenciālu pielietojumā dažādu slimību profilaksē un ārstēšanā, kā arī aptaujāt aptiekas a…

El miedo, arma política

1998

Notulae to the Italian flora of algae, bryophytes, fungi and lichens: II

2021

In this contribution, new data concerning bryophytes, fungi, and lichens of the Italian flora are presented. It includes new records and confirmations for the bryophyte genera Aneura, Aulacomnium, Dumortiera, Fossombronia, Hennediella, Hygrohypnella, Pohlia, Porella, Riccardia, Tortella, and Tortula, the fungal genera Cortinarius, Mycena, Naucoria, Trichoglossum, and Tubaria and the lichen genera Agonimia, Blastenia, Chaenotheca, Cladonia, Endocarpon, Gyalecta, Lecanographa, Parmeliella, Porpidia, Stenhammarella, and Thelidium.

Reto un apdraudēto augu sugu jūrmalas zilpodzes (Eryngium maritimum L.) un jūrmalas sālsasteres (Aster tripolium L.) audu fenolu saturs un antioksida…

2018

Jūrmalas zilpodze (Eryngium maritimum L.) un jūrmalas sālsastere (Aster tripolium L.) ir retas un apdraudētas sugas, kuras ir ierakstītas Latvijas Sarkanās grāmatas 1. kategorijā. Abas sugas ir ievērojamas ar vērtīgām dabas vielām ar potenciālu pielietojumu farmokoloģijā, kosmētikā un pārtikas nozarē. •Darba mērķis - noskaidrot dažādu saharozes un nitrātu koncentrāciju barotnē ietekmi uz kopējo fenolu saturu un antioksidatīvo aktivitāti jūrmalas zilpodzes un jūrmalas sālsasteres dzinumu kultūrās. •Darba hipotēze - samazināta nitrātu koncentrācija un palielināta saharozes koncentrācija barotnē veicina fenolu sintēzi un ekstraktu antioksidatīvo aktivitāti audu kultūrā audzētajos dzinumos. Pēt…