Search results for "IVU"
showing 10 items of 506 documents
Therapy with lamivudine and steroids in a patient with acute hepatitis B and rapidly progressive glomerulonephritis.
2006
To the Editor: Tang et al.1 recently reported that lamivudine (LAM) improves renal outcome in patients with chronic hepatitis B virus (HBV) infection and membranous nephropathy. We would like to add our experience on acute hepatitis B and rapidly progressive glomerulonephritis.
Tillage effects on yield and nitrogen fixation of legumes in Mediterranean conditions
2012
Published in Agron. J. 104:1459–1466 (2012) Posted online [DATE] doi:10.2134/agronj2012.0070 Copyright © 2012 by the American Society of Agronomy, 5585 Guilford Road, Madison, WI 53711. All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. I agricultural practices that involve the use of agrochemicals such as fertilizers, pesticides, and herbicides have greatly increased the global food supply but often with detrimental effects on the environment, such as contamination of ground…
Novel concepts on the recovery of by-products from alkaline pulping
2016
Innovative biorefinery concepts were developed for the separation and utilization of organic materials, especially aliphatic carboxylic acids, lignin, and extractives, which are formed as by-products during wood-based alkaline delignification processes. The partial recovery of sodium as NaOH and aliphatic carboxylic acids from hardwood soda-AQ black liquor was studied via electrodialysis. The lignin was partly (about 59 % of the initial lignin) precipitated from black liquor by carbonation (pH to about 8.5) followed by electrodialysis or H2SO4 (pH to about 2), with subsequent precipitation of more lignin and the liberation of aliphatic acids. The Na2SO4 formed was successfully separated fro…
Plant-growth-regulatingN-(phosphonoacetyl)amines
1994
A series of N‐(phosphonacetyl)amine derivatives were synthesized and screened for plant‐growth regulating activity on Lepidium sativum L. and Cucumis sativus L. Aromatic N‐(phosphonoacetyl)amines. which may be considered as possible analogues of N‐acylaniline herbicides obtained by replacement of their acyl group by the phosphonacetyl moiety, exhibited significant or moderate herbicidal activity. In contrast, N‐(phosphonoacetyl)amino acids and N‐(phosphonoacetyl)aminophosphonic acids promoted the growth of L. sativum and C. sativus roots.
Plant-growth-regulating phosphono peptides
1990
Phosphono peptides exhibited plant‐growth‐regulating activity when tested on Lepidium sativum and Cucumis sativus. The studies have provided evidence that the mechanism of action of these compounds may involve the uptake of the phosphono peptides into the plant, intracellular hydrolysis of the peptide bond and release of the P‐terminal aminoalkylphosphonic acid. This acid or its metabolite is then probably responsible for the observed physiological effect.
The two cultures: Scientists and journalists, not an outdated relationship.
2013
The relationship between scientists and journalists is much better than its image. Scientists not only believe that public communication is a duty, but also that media visibility is beneficial for them. The scientific culture differs from that of journalism, which causes partly discrepant expectations; but in most cases these do not preclude satisfying interactions between journalists and scientists. The traditional relationship between science and journalism is challenged by the rise of new online media. These provide opportunities for scientists and scientific organizations to communicate directly with the public via websites, blogs and social networks. Science journalism seems to be in a…
Ciència, científics i literatura. El paper de la literatura en la divulgació de la ciència i la tecnologia
2014
La presència de la ciència i la tecnologia a través de les seues idees innovadores i avanços tecnològics s'ha vist reflectida en nombroses obres ben conegudes i representatitives de la literatura universal. Aquest fet es dóna, sobretot, a partir del segle XIX quan comença l'impacte social més notori de l'activitat científica en la societat. Amb aquest article volem mostrar com el debat entre les ciències i les humanitats, qüestionat ja per autors com Snow, és estèril, ja que la influència mútua d'aquestes dues formes de pensament mostra que són igualment humanes i s'han influït constantment, més encara com ens acostem a l'actualitat. En l'article s'esmenten innombrables exemples de novel·le…
Science, Its Publics and New Media. Reflecting on the Present and Future of Science Communication.
2013
Scientific journalism faces the challenge to adapt not only to new formats but also to new information exchange dynamics. New online platforms, making it easier to access and produce scientific content, are forcing science publics to evolve. The online environment has turned into science communication reality, and both scientists and communicators must adapt to it. This paper discusses these changes and their implications for science journalism and an informed citizenry.
La conquesta del lector. Reptes evolutius del periodisme científic en un ambient extrem
2014
La gran responsabilidad de los medios de comunicacion radica en que la ciudadania tiene derecho a tener una informacion cientifica de calidad. Que le sirva para tomar mejores decisiones, con espiritu critico, y para crear su propia opinion; que reactualice sus conocimientos y le haga participe de la cultura de su tiempo. En la actualidad, el entorno es cambiante y competitivo para la prensa escrita y las condiciones ambientales amenazan la supervivencia de la divulgacion. Profesionalmente, es momento de evolucionar pero tambien de conservar lo imprescindible: la esencia del buen periodismo, para diferenciarnos, con calidad y audacia, y ser asi elegidos por el publico. Debe seguir habiendo s…
Intensified Job Demands and Cognitive Stress Symptoms : The Moderator Role of Individual Characteristics
2020
Intensified job demands (IJDs) originate in the general accelerated pace of society and ever-changing working conditions, which subject workers to increasing workloads and deadlines, constant planning and decision-making about one’s job and career, and the continual learning of new professional knowledge and skills. This study investigated how individual characteristics, namely negative and positive affectivity related to competence demands, and multitasking preference moderate the association between IJDs and cognitive stress symptoms among media workers (n = 833; 69% female, mean age 48 years). The results show that although IJDs were associated with higher cognitive stress symptoms at wo…