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Journal articles on the topic 'Actifos'

Author: Grafiati

Published: 4 June 2025

Last updated: 23 June 2025

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1

Miłosz, Tkaczyk, Pacia Artur, Siebyła Marta, and Oszako Tomasz. "Phosphite fertilisers as inhibitors of Hymenoscyphus fraxineus (anamorph Chalara fraxinea) growth in tests in vitro." FOLIA FORESTALIA POLONICA, SERIES A – FORESTRY 59, no. 1 (2017): 79–81. https://doi.org/10.1515/ffp-2017-0008.

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This study is designed to test the potential for reducing the growth of the mycelium of the fungus <em>Hymenoscyphus fraxineus</em> (<em>anamorph Chalara fraxinea</em>) by using phosphite preparations at various concentrations in vitro. The study shows that adding pure phosphite to potato dextrose agar media inhibits the development of the fungus, but if the preparation is applied in the form of ammonium phosphite (Actifos), the growth of fungus will be accelerated. Probably the addition of nitrogen contained in the product Actifos has positive effect on the mycelial growth, but pure phosphite restricts its development. These studies are preliminary and only show the potential use of phosphite to reduce the development of <em>H. fraxineus</em>; however, to completely confirm its operation, further research is needed in this area.

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2

Tkaczyk, Miłosz, Artur Pacia, Marta Siebyła, and Tomasz Oszako. "Phosphite fertilisers as inhibitors of Hymenoscyphus fraxineus (anamorph Chalara fraxinea) growth in tests in vitro." Folia Forestalia Polonica 59, no. 1 (2017): 79–81. http://dx.doi.org/10.1515/ffp-2017-0008.

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Abstract This study is designed to test the potential for reducing the growth of the mycelium of the fungus Hymenoscyphus fraxineus (anamorph Chalara fraxinea) by using phosphite preparations at various concentrations in vitro. The study shows that adding pure phosphite to potato dextrose agar media inhibits the development of the fungus, but if the preparation is applied in the form of ammonium phosphite (Actifos), the growth of fungus will be accelerated. Probably the addition of nitrogen contained in the product Actifos has positive effect on the mycelial growth, but pure phosphite restricts its development. These studies are preliminary and only show the potential use of phosphite to reduce the development of H. fraxineus; however, to completely confirm its operation, further research is needed in this area.

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3

Tomasz, Oszako, Sikora Katarzyna, Borys Małgorzata, A. Kubiak Katarzyna, and Tkaczyk Miłosz. "Phytophthora quercina infections in elevated CO2 concentrations." FOLIA FORESTALIA POLONICA, SERIES A – FORESTRY 58, no. 3 (2016): 131–41. https://doi.org/10.1515/ffp-2016-0015.

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In the last decades, a new wave of oak decline has been observed in Poland. The most important pathogenic organisms involved in this phenomenon are probably soil-borne pathogens <em>Phytophthoragenus</em>, especially <em>P. quercina</em>. In this work, we sought to test the influence of elevated CO<sub>2</sub> concentration on the susceptibility of oaks (<em>Quercus robur</em> L.) to infection by<em> P. quercina</em>. In order to test the susceptibility of oak fine roots to infection, we applied phosphite-based fertiliser Actifos in 0.6% concentration. One-year-old oak seedlings were grown for one year in greenhouse with either an ambient atmosphere (400 ppm CO<sub>2</sub>) or an elevated (800 ppm) concentration of CO<sub>2</sub>. Oaks grown at the elevated CO<sub>2</sub> concentration developed longer shoots as proved by statistically significant differences. However, there was no difference in the development of root systems. The application of Actifos had a positive significant effect on the development of shoots and the surface area of fine roots under the elevated CO<sub>2</sub> concentration.

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4

Keča, Nenad, Milosz Tkaczyk, Anna Żółciak, et al. "Survival of European Ash Seedlings Treated with Phosphite after Infection with the Hymenoscyphus fraxineus and Phytophthora Species." Forests 9, no. 8 (2018): 442. http://dx.doi.org/10.3390/f9080442.

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The European Fraxinus species are threatened by the alien invasive pathogen Hymenoscyphus fraxineus, which was introduced into Poland in the 1990s and has spread throughout the European continent, causing a large-scale decline of ash. There are no effective treatments to protect ash trees against ash dieback, which is caused by this pathogen, showing high variations in susceptibility at the individual level. Earlier studies have shown that the application of phosphites could improve the health of treated seedlings after artificial inoculation with H. fraxineus. Three-year-old F. excelsior seedlings were inoculated with the following pathogens: a H. fraxineus, Phytophthora species mixture (P. plurivora, P. megasperma, and P. taxon hungarica), in combination with two pathogens and mock-inoculated as the control, and then either watered or treated with ammonium phosphite (Actifos). Results showed significant differences in the survival of seedlings and symptoms of disease development among the treatments. Chlorophyll-a fluorescence parameters indicated a decrease in photosynthetic efficiency in infected plants, suggesting that they were under strong biotic stress, but none of the parameters could be used as a reliable bioindicator for ash decline disease. The application of Actifos enhanced the production of triterpenes (ursolic and oleanolic acid), and decreased the production of phenols (tyrosol) and sterols (β-sitosterol) in seedlings infected with H. fraxineus. Treatment with Actifos caused seedlings to enhance their response to pathogen(s) attack and increase their survival probability.

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5

Dąbrowski, Piotr Andrzej, Hazem Kalaji, Nenad Keča, Tomasz Horaczek, and Tomasz Oszako. "The influence of phosphite treatments on oak leaves and damage caused by powdery mildew Erysiphe alphitoides." Folia Forestalia Polonica 59, no. 3 (2017): 239–45. http://dx.doi.org/10.1515/ffp-2017-0025.

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AbstractThe aim of the project was to check the influence of ammonium phosphite preparation − Actifos on the physiology of leaves and a possible reduction of infection by the fungus a year after the application of fertilizer. Three observation plots were selected in Karczma Borowa, Krotoszyn and Piaski Forest Districts (FD). In each of these observation plots, trees were chosen randomly. In Karczma Borowa FD, the trees were treated by watering them with a 3% solution of Actifos. In Krotoszyn FD, the leaves of trees were sprayed twice (in July and September) from the plane using a 50% solution of Actifos; and in Piaski FD, only the trunks of tress were sprayed twice the same way, but in July 2012 and September 2013. In October 2013, from each tested tree, ten leaves were selected randomly from the upper, well-lit parts of their crowns. The assessment of leaf surface damaged by mycelium and chlorophyllafluorescence was performed. After the application of the phosphite, no negative physiological consequences for the treated trees were noticed − neither concerning the average leaf area nor the fluorescence of chlorophyll. The manner of phosphite application (leaves, trunks or roots) did not cause any negative consequences for the vitality/health of the treated trees as compared to the control trees. A certain tendency in the reduction of oak mildew on the treated leaves with phosphite was observed, however these observations should be continued in the next years.

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6

Piotr, Andrzej Dąbrowski, Kalaji Hazem, Keča Nenad, Horaczek Tomasz, and Oszako Tomasz. "The influence of phosphite treatments on oak leaves and damage caused by powdery mildew Erysiphe alphitoides." FOLIA FORESTALIA POLONICA, SERIES A – FORESTRY 59, no. 3 (2017): 239–45. https://doi.org/10.1515/ffp-2017-0025.

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The aim of the project was to check the influence of ammonium phosphite preparation − Actifos on the physiology of leaves and a possible reduction of infection by the fungus a year after the application of fertilizer. Three observation plots were selected in Karczma Borowa, Krotoszyn and Piaski Forest Districts (FD). In each of these observation plots, trees were chosen randomly. In Karczma Borowa FD, the trees were treated by watering them with a 3% solution of Actifos. In Krotoszyn FD, the leaves of trees were sprayed twice (in July and September) from the plane using a 50% solution of Actifos; and in Piaski FD, only the trunks of tress were sprayed twice the same way, but in July 2012 and September 2013. In October 2013, from each tested tree, ten leaves were selected randomly from the upper, well-lit parts of their crowns. The assessment of leaf surface damaged by mycelium and chlorophyll <em>a</em> fluorescence was performed. After the application of the phosphite, no negative physiological consequences for the treated trees were noticed − neither concerning the average leaf area nor the fluorescence of chlorophyll. The manner of phosphite application (leaves, trunks or roots) did not cause any negative consequences for the vitality/health of the treated trees as compared to the control trees. A certain tendency in the reduction of oak mildew on the treated leaves with phosphite was observed, however these observations should be continued in the next years.

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7

Tkaczyk, Miłosz, Justyna A. Nowakowska, and Tomasz Oszako. "Plant bio-stimulator fertilizers can be applied in integrated plant management (IPM) in forest nurseries." Folia Forestalia Polonica 57, no. 4 (2015): 201–9. http://dx.doi.org/10.1515/ffp-2015-0020.

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AbstractIn the circumstances of only a limited number of pesticides being approved for use in forest nurseries, it is necessary to also examine the efficacy of new products available on the European market that stimulate growth and improve resilience and vitality among seedlings and saplings, with a view to the application of these products forming part of an integrated programme of plant protection. This paper describes trials of the three commercially available fertilizer products Actifos, Zielony Busz and Effective Microorganisms (EM), as carried out in seven Polish nurseries in an attempt to promote the growth of shoots and root systems of seedlings and saplings. In 64% of cases of it being used, Actifos was shown to stimulate growth significantly beyond control levels in the shoots of oak, beech, pine, spruce and alder saplings as well as the roots of young alders and oaks.

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8

Oszako, Tomasz, Katarzyna Sikora, Małgorzata Borys, Katarzyna A. Kubiak, and Miłosz Tkaczyk. "Phytophthora quercina infections in elevated CO2 concentrations." Folia Forestalia Polonica 58, no. 3 (2016): 131–41. http://dx.doi.org/10.1515/ffp-2016-0015.

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Abstract:

Abstract In the last decades, a new wave of oak decline has been observed in Poland. The most important pathogenic organisms involved in this phenomenon are probably soil-borne pathogens Phytophthoragenus, especially P. quercina. In this work, we sought to test the influence of elevated CO2 concentration on the susceptibility of oaks (Quercus robur L.) to infection by P. quercina. In order to test the susceptibility of oak fine roots to infection, we applied phosphite-based fertiliser Actifos in 0.6% concentration. One-year-old oak seedlings were grown for one year in greenhouse with either an ambient atmosphere (400 ppm CO2) or an elevated (800 ppm) concentration of CO2. Oaks grown at the elevated CO2 concentration developed longer shoots as proved by statistically significant differences. However, there was no difference in the development of root systems. The application of Actifos had a positive significant effect on the development of shoots and the surface area of fine roots under the elevated CO2 concentration.

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9

Hrynyk, H. H., Tomasz M. Oszako та Miłosz Tkaczyk. "Дослідження впливу фосфітів як стимуляторів відпірності дерев дуба звичайного (Quercus robur L.) до збудників з роду Phytophthora на території Кротошинське плато (Польща)". Scientific Bulletin of UNFU 29, № 8 (2019): 9–24. http://dx.doi.org/10.36930/40290801.

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Досліджено перспективи використання фосфітів як стимуляторів відпірності дерев дуба звичайного до патогенів з роду Phytophthora. Для цього на території надлісництва "Кротошин" Регіональної дирекції державних лісів у Познані (Польща) закладено пробні площі, на яких з літака оброблено дубові деревостани препаратами Kalex та Actifos. Для порівняльного аналізу вибрано 30 оброблених препаратами дерев та 30 контрольних. Усі вкриті лісом ділянки характеризуються типом лісорослинних умов свіжий сугруд (C2) та типом лісу – свіжа грабова судіброва. Встановлено статистично обґрунтовану відмінність у середніх значеннях досліджуваних ознак коріння для оброблених фосфітами та контрольних дерев. Встановлено, що сукупний вплив біотичних та абіотичних чинників на ріст дерев та формування їхніх кореневих систем у досліджуваних деревостанах є подібним. Зважаючи на наявність у ґрунті патогенів з роду Phytophthora, дерева, оброблені фосфітами, мають кращі значення стану крони, що було використано як індикатор загального санітарного стану досліджуваних дерев. Здійснений аналіз зміни середніх значень ознак коренів показав відмінність у формуванні власне цих ознак у здорових, пошкоджених та замираючих оброблених фосфітами та контрольних дерев. Зважаючи на певні особливості, формалізовано залежність ступеня дефоліації та синтетичного індексу Syn від відповідних морфолого-таксаційних ознак дерев та ознак коріння. Отримані регресійні рівняння дають змогу пояснити тенденції та здійснити наближений прогноз модельваних залежностей для оброблених фосфітами та контрольних дерев.

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10

Pacia, Artur, Stanisław Drozdowski, Tadeusz Malewski, et al. "Use of Phosphite Preparations to Protect Ash Seedlings Fraxinus excelsior L. against Phytophthora spp. and Hymenoscyphus fraxineus Pathogens." Forests 15, no. 5 (2024): 829. http://dx.doi.org/10.3390/f15050829.

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In this study, greenhouse tests were conducted on 240 Fraxinus excelsior seedlings to investigate the simultaneous damage caused by thea pathogenic fungus and oomycetes. The experiment was performed under controlled conditions in the greenhouse of the Institute of Forest Research in Sękocin Stary (Poland). Three species of oomycetes were used for the experiment: Phytophthora plurivora, Phytophthora taxon hungarica, Phytophthora megasperma, and the fungus Hymenoscyphus fraxineus. Inoculations using the fungus were carried out on shoots and in plant pots in which the soil was mixed with the three Phytophthora species mentioned above, both simultaneously and separately, which made it possible to recognize the cumulative effect of the related plant infection. The aim of the study was to investigate the effect of phosphite-containing preparations on the health of common ash under conditions of threat to the roots by Phytophthora spp. and damage to the aerial parts of the plant by the fungus, as well as the possible occurrence of synergistic effects. Two types of protective preparations (Actifos and Phos60 of the nitrogen and potassium forms, respectively) were used. It was found that the inoculation of ash seedlings with the fungus H. fraxineus resulted in plant mortality, while the mixture of Phytophthora did not cause significant damage. It was confirmed that when pathogens coexist, a phenomenon occurs that leads to an acceleration in the development of disease symptoms and, thus, to plant mortality. In vitro tests confirmed the usefulness of phosphite preparations for the protection of ash seedlings.

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11

Bzdyk, Roman, Jacek Olchowik, Marcin Studnicki, et al. "The Impact of Effective Microorganisms (EM) and Organic and Mineral Fertilizers on the Growth and Mycorrhizal Colonization of Fagus sylvatica and Quercus robur Seedlings in a Bare-Root Nursery Experiment." Forests 9, no. 10 (2018): 597. http://dx.doi.org/10.3390/f9100597.

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Every year there are changes in the register of fungicides available for forestry. It is proactive to develop a new strategy to minimise the application of chemical methods and replace them with natural and biological fungal control options. This study compares the influence after one growing season in a bare-root forest nursery of (a) effective microorganisms (EM) consisting of mixed cultures of beneficial and naturally-occurring microorganisms, (b) the organic fertilizer Actifos (Act), and (c) the mineral fertilizer Busz Forte (BF) on the growth and mycorrhizal colonization of two common forest deciduous tree species: Fagus sylvatica and Quercus robur. None of the analysed growth parameters (root collar diameter, length of shoots and roots, dry mass of shoots, and roots) of either tested tree species differed significantly among treatments. For both tree species, seedlings treated with EM exhibited partnerships with a smaller species richness of mycorrhizae than did seedlings in other treatments. Moreover, EM treatment significantly increased the abundance of non-vital root tips for both species. By contrast, BF exerted a negative effect on F. sylvatica non-vital mycorrhiza abundance. Based on morphological and molecular identification, a total of 11 ectomycorrhizal (ECM) fungal taxa were detected in this study; three species (Peziza ostracoderma, Scleroderma areolatum and Cenococcum-like) were shared between both plant species. Across treatments, the most abundant ECM fungal species on F. sylvatica roots were Pezizaceae sp. (51.1%) and Hebeloma sp. (38.1%), while Peziza ostracoderma (26.8%), Naucoria salicis (24.1%), and Scleroderma areolatum (16.9%) were the most abundant taxa on Q. robur seedling roots. Our data indicate a negative effect of EM on ectomycorrhizal colonisation and on species richness of ECM fungi associated with F. sylvatica and Q. robur seedlings. None of the tested products had a negative effect on seedling growth, but seedlings treated with EM were characterised by a significant higher abundance of non-vital mycorrhizae.

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12

Actis, Luis, A. "Bacterial plasmids: replication of extrachromosomal genetic elements encoding resistance to antimicrobial compounds." Frontiers in Bioscience 4, no. 1-3 (1999): d43. http://dx.doi.org/10.2741/actis.

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13

Franke, Werner W. "Actin's many actions start at the genes." Nature Cell Biology 6, no. 11 (2004): 1013–14. http://dx.doi.org/10.1038/ncb1104-1013.

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14

Lisman, John. "Actin's Actions in LTP-Induced Synapse Growth." Neuron 38, no. 3 (2003): 361–62. http://dx.doi.org/10.1016/s0896-6273(03)00257-5.

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15

Abedin Tanvir, Fakhrul. "Assessing the Validity of Human Intention for Action: Exploring Unintentional Actions." Public Health Open Access 8, no. 1 (2024): 1–19. http://dx.doi.org/10.23880/phoa-16000274.

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This paper examines the validity of human intention for action, specifically focusing on unintentional actions that are unaffected by bias. Through the observation of a substantial number of individuals, estimated to be over 100, we investigate the power of human actions and their corresponding intentions. Given the underlying similarities in general thought processes and intentions among humans, it becomes possible to establish common patterns by observing a significant sample size. While this research provides observational results indicating a one-second validity of human intentions, it is important to note that these findings have not been scientifically proven. Nevertheless, this study contributes to the ongoing discourse by shedding light on participant expressions and experiences, furthering our understanding of human intentionality and action.

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16

Martini, Marie-Claude. "Actifs." EMC - Cosmétologie et dermatologie esthétique 1, no. 1 (2000): 1–7. https://doi.org/10.1016/s2211-0380(20)30032-6.

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17

Borgonovo, Claudia. "Participios activos." Nueva Revista de Filología Hispánica (NRFH) 47, no. 2 (1999): 281–303. http://dx.doi.org/10.24201/nrfh.v47i2.2102.

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18

Kuehni, Morgane. "Assigné(e)s au travail en Suisse : quels enjeux de santé pour les actifs et actives du chômage ?" Travailler 19, no. 1 (2008): 123. http://dx.doi.org/10.3917/trav.019.0123.

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19

Nespola, Julien. "Actifs marseillais." Outre-Terre 23, no. 3 (2009): 59. http://dx.doi.org/10.3917/oute.023.0059.

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20

Bensignor, François. "Créateurs actifs." Hommes et Migrations 1180, no. 1 (1994): 43–45. http://dx.doi.org/10.3406/homig.1994.2306.

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21

Varenne, Olivier, Jean-Philippe Collet, Michel Samama, and Bernard Chevalier. "Stents actifs." Archives des Maladies du Coeur et des Vaisseaux - Pratique 2008, no. 166 (2008): 11–13. http://dx.doi.org/10.1016/s1261-694x(08)70585-6.

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22

Mogrovejo Andrade, Johanna Milena, Nathalie Claire Raynaud Prado, Rolando Antonio Eslava Zapata, and Lesly Marcela Peña Arias. "Lavado de activos." Revista de Relaciones Internacionales, Estrategia y Seguridad 18, no. 2 (2023): 105–16. http://dx.doi.org/10.18359/ries.6569.

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El siguiente artículo de revisión documental analiza los riesgos y consecuencias socioeconómicas del lavado de activos en la zona fronteriza de Colombia y Venezuela (Norte de Santander-Táchira), por medio de la minería de textos y la exploración documental, con la finalidad de identificar los principales efectos negativos que trae consigo el blanqueo de capitales en el desarrollo del país y las consecuencias adversas que dicha actividad acarrea para el crecimiento económico de la región; se caracterizan factores específicos, como la economía subterránea, y los efectos desfavorables para el desarrollo de la sociedad. Se llega a la conclusión de que en las zonas fronterizas tiene mayor incidencia esta práctica delictiva, ya que el contrabando, que es una forma frecuente de blanquear capital, está allí más presente que en zonas céntricas del país. Esto puede deberse a la dificultad, por parte del Estado, de auditar las operaciones bilaterales fronterizas.

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23

Petitjean, Mikael, Catherine D’Hondt, and Younes Elhichou Elmaya. "Uncovering the profile of passive exchange-traded fund retail investors." Finance Pub. anticipées (August 31, 2029): I45—XLV. https://doi.org/10.3917/fina.pr.040.

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Nous dressons le profil des investisseurs individuels qui négocient en bourse des trackers pas-sifs (P-ETF). Nous utilisons les données d’enquête et les registres de transactions de tous les clients actifs sur une plateforme de courtage en ligne au cours d’une période d’environ 10 ans. Il apparaît clairement que ces investisseurs ont un profil distinct. La probabilité et l’ampleur des investissements dans les P-ETF sont liées à un niveau d’éducation plus élevé et à une plus longue expérience de négociation. Les investisseurs en P-ETF déclarent avoir des connaissances financières plus élevées, un objectif de rendement moins élevé, une tolérance au risque plus faible et un horizon d’investissement plus long. L’excès de confiance est moins présent chez eux et les actions qu’ils détiennent sont moins orientés vers le marché domestique. En outre, les utilisateurs de P-ETF les plus actifs détiennent des portefeuilles d’actions plus concentrés et affichent un taux de rotation plus faible dans leurs portefeuilles d’actions, ce qui suggère l’existence d’un effet de substitution entre actions et P-ETF.

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24

Bosc, Christel, Hélène Blasquiet‑Revol, and Laurent Rieutort. "Vieillir dans les ruralités : quand les seniors s’engagent pour leur territoire." Retraite et société N° 92, no. 1 (2024): 71–89. http://dx.doi.org/10.3917/rs1.092.0071.

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La France fait face à un vieillissement démographique important. Celui-ci touche de manière inégale les territoires français, avec une concentration des personnes de 65 ans et plus dans les zones rurales. D’un point de vue sociétal, les seniors sont souvent perçus comme un poids pour la société, alors qu’ils peuvent être porteurs de ressources et d’engagements. Dans cette étude, nous examinons les actions collectives entreprises par les seniors dits « actifs » dans les ruralités auvergnates, en nous basant sur l’analyse de 22 articles du quotidien La Montagne . Les résultats révèlent que les seniors actifs participent à la transmission des savoirs, du patrimoine et du lien social, mais aussi à la défense de leurs droits et de leur territoire de vie. Ces actions contribuent à la valorisation de l’identité territoriale et à la dynamique sociale des campagnes. Cependant, ces initiatives restent souvent invisibles et méconnues. Cela met en lumière l’importance de les faire connaître et de reconnaître pleinement la contribution des seniors, afin de modifier la perception de la vieillesse et de favoriser une société plus inclusive.

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25

Marquis, Nicolas. "Fatigués mais actifs." Esprit Juin, no. 6 (2021): 87–95. http://dx.doi.org/10.3917/espri.2106.0087.

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26

Shechter, Emanuel. "Transports actifs secondaires." Biochimie 68, no. 3 (1986): 357–65. http://dx.doi.org/10.1016/s0300-9084(86)80002-5.

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27

Martin, Aude, and Pierre Maurel. "Les actifs échoués." Alternatives Économiques N° 123 - Hors série, HS2 (2021): 6–7. https://doi.org/10.3917/ae.123.0006.

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28

Lull, James James. "The active pleasures of expression and communication." Comunicar 15, no. 30 (2008): 21–26. http://dx.doi.org/10.3916/c30-2008-01-003.

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Based on Lull’s recent book «Culture-on-Demand: Communication in a Crisis World» (2007) and on the author’s view of audiences as active participants in all forms of human communication, this article argues for the place of human expression and symbolic power in contemporary media and cultural studies. It also discusses how modern communication technology reinforces and extends the expressive potential of ordinary citizens in the normative contexts of everyday life. This contribution introduces the concept of cultural open sourcing as fundamental to the increasing democratization of communication processes and distribution of social power ona global scale.Adaptado a partir del más reciente libro de su autor, «Culture-on-demand: communication in a crisis world», y continuando con la visión que el autor tiene de la participación activa de los espectadores en todas las formas de comunicación humana, este artículo defiende el lugar de la expresión humana y del poder del símbolo en los medios de comunicación contemporáneos y en el mundo de la cultura. Discute cómo la moderna tecnología de la comunicación refuerza y extiende el potencial expresivo de los ciudadanos de a pie en los contextos normativos de la vida cotidiana e introduce el concepto de cultural «open sourcing», concepto fundamental para incrementar la democratización de los procesos de la comunicación y la distribución del poder social a escala global.

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Dockx, Andrés Maria. "Diseño de filtros activos." Ingeniería e Investigación, no. 14 (January 1, 1987): 28–33. http://dx.doi.org/10.15446/ing.investig.n14.19556.

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Nuestro desconocimiento respecto a nosotros y a las cosas que nos rodean no proviene tanto de una dificultad de obtener la información, sino de la poca precisión o de su escasez. Ello se debe, en cambio, a la enorme abundancia y a la confusión de nociones que la humanidad ha acumulado en el transcurso del tiempo. En relación con los filtros activos se han publicado numerosos artículos dispersos en varias revistas y cada autor usa un enfoque personal. En el presente artículo se trata de encontrar una línea común al introducir una variable normalizada y algunas formas canónicas.

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Carvalho, Joaquim Montezuma de. "Avaliação de activos imobiliários." Gestão e Desenvolvimento, no. 5-6 (January 1, 1996): 89–109. http://dx.doi.org/10.7559/gestaoedesenvolvimento.1996.419.

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Neste trabalho iremos caracterizar, sumariamente, o mercado imobiliário e abordar as principais metodologias de avaliação de activos imobiliários. Apesar do investimento imobiliário representar uma parcela muito significativa do investimento global de um país, tem sido, comparativamente com o investimento em activos financeiros, muito pouco estudado. A título exemplificativo, e para os Estados Unidos da América, o valor total do mercado imobiliário, em meados dos anos 80, foi de 4.5 triliões de dólares, enquanto que o mercado accionista e obrigacionista rondou, no seu conjunto, 3.5 triliões de dólares.

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31

Watson, Rod, and Wes Sharrock. "Conversational Actions and Organisational Actions." Réseaux 8, no. 2 (1990): 21–34. http://dx.doi.org/10.3406/reso.1990.3547.

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32

Pury, Cynthia L. S., and Autumn D. Hensel. "Are courageous actions successful actions?" Journal of Positive Psychology 5, no. 1 (2010): 62–72. http://dx.doi.org/10.1080/17439760903435224.

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33

Goueffic, Y. "Stents, stents actifs, ballons actifs : les nouveaux outils du chirurgien vasculaire." Journal des Maladies Vasculaires 41, no. 2 (2016): 90–91. http://dx.doi.org/10.1016/j.jmv.2015.12.022.

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34

Acuña, Andrés, and Cristián Pinto. "Eficiencia del mercado accionario Chileno: un enfoque dinámico usando test de volatilidad." Lecturas de Economía, no. 70 (September 11, 2009): 39–61. http://dx.doi.org/10.17533/udea.le.n70a2254.

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En este artículo estudiamos la eficiencia del Mercado Accionario Chileno (MAC). Para su comprobación usamos un modelo de equilibrio parcial que representa la manera como se forma el precio de los activos financieros. Contrastamos la volatilidad observada en los precios de las acciones y la volatilidad esperada en un modelo de mercado accionario eficiente. El análisis estadístico comprende datos de frecuencia mensual de títulos transados en la Bolsa de Comercio de Santiago de Chile en el periodo 1987-2007. Utilizando tests de volatilidad, encontramos evidencia de exceso de volatilidad en los precios del mercado accionario chileno; no podemos vincular el exceso de volatilidad a la existencia de una burbuja especulativa racional, y tampoco a un exceso de volatilidad en la tasa de descuento. Palabras clave: eficiencia, mercado accionario, valoración de activos, CAPM. Clasificación JEL: D53, G14 Abstract: This article studies the Chilean Stock Market's efficiency. To corroborate efficiency, we use a partial equilibrium model for financial asset pricing. We contrast between observed and expected Chilean stock price volatility under an efficient stock market framework. For the statistical analysis, we use monthly data for Chilean Stock Market prices from 1987 to 2007. Performing volatility tests, we find evidence of excess volatility in Chilean stock market prices. We cannot link this stock price excess volatility to the existence of a rational speculative bubble, nor to discount rate's excess volatility. Keywords: efficiency, stock market, asset pricing, CAPM. JEL Classification: D53, G14 Résumé: Dans cet article nous étudions l'efficience du marché actionnaire chilien (MAC). Pour ce faire, nous utilisons un modèle d'équilibre partiel qui représente la manière dont le prix des actifs financiers est déterminé. Nous contrastons la volatilité observée dans les prix des actions et la volatilité attendue à l'intérieur d'un modèle de marché actionnaire efficient. L'analyse statistique comprend un ensemble de données de fréquence mensuelle des titres échangés à la Bourse de Commerce de Santiago du Chili pour la période 1987-2007. En utilisant des tests de volatilité, nous montrons qu'il existe un excès de volatilité dans les prix du marché actionnaire chilien; sans qu'il soit posible lier cet excès de volatilité ni à l'existence d'une bulle spéculative rationnelle, ni au taux d'escompte. Mots clé: efficience, marché actionnaire, évaluation d'actifs, CAPM. Classification JEL : D53, G14

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Tomou, Ekaterina-Michaela, Paraskevi Papakyriakopoulou, Helen Skaltsa, Georgia Valsami, and Nikolaos P. E. Kadoglou. "Bio-Actives from Natural Products with Potential Cardioprotective Properties: Isolation, Identification, and Pharmacological Actions of Apigenin, Quercetin, and Silibinin." Molecules 28, no. 5 (2023): 2387. http://dx.doi.org/10.3390/molecules28052387.

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Cardiovascular diseases (CVDs) are the leading cause of morbidity and mortality worldwide. As a result, pharmaceutical and non-pharmaceutical interventions modifying risk factors for CVDs are a top priority of scientific research. Non-pharmaceutical therapeutical approaches, including herbal supplements, have gained growing interest from researchers as part of the therapeutic strategies for primary or secondary prevention of CVDs. Several experimental studies have supported the potential effects of apigenin, quercetin, and silibinin as beneficial supplements in cohorts at risk of CVDs. Accordingly, this comprehensive review focused critically on the cardioprotective effects/mechanisms of the abovementioned three bio-active compounds from natural products. For this purpose, we have included in vitro, preclinical, and clinical studies associated with atherosclerosis and a wide variety of cardiovascular risk factors (hypertension, diabetes, dyslipidemia, obesity, cardiac injury, and metabolic syndrome). In addition, we attempted to summarize and categorize the laboratory methods for their isolation and identification from plant extracts. This review unveiled many uncertainties which are still unexplored, such as the extrapolation of experimental results to clinical practice, mainly due to the small clinical studies, heterogeneous doses, divergent constituents, and the absence of pharmacodynamic/pharmacokinetic analyses.

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36

Jeanneau, Laurent. "Des retraités très actifs." Alternatives Économiques N° 333, no. 3 (2014): 66. http://dx.doi.org/10.3917/ae.333.0066.

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Martini, M. C. "Ingrédients actifs en cosmétologie." EMC - Cosmétologie et dermatologie esthétique 1, no. 1 (2006): 1–9. http://dx.doi.org/10.1016/s1283-0143(06)41980-4.

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Manzo-Silberman, S., O. Varenne, and C. Spaulding. "Limites des stents actifs." Annales de Cardiologie et d'Angéiologie 56 (September 2007): S48—S52. http://dx.doi.org/10.1016/s0003-3928(07)80004-7.

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Cattan, S., P. Michaud, O. Nallet, et al. "Indication des stents actifs." Annales de Cardiologie et d'Angéiologie 53, no. 6 (2004): 335–38. http://dx.doi.org/10.1016/j.ancard.2004.09.010.

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40

Noble, Jacques, and Philip Urban. "Les stents coronaires actifs." Revue Médicale Suisse 61, no. 2427 (2003): 496–501. http://dx.doi.org/10.53738/revmed.2003.61.2427.0496.

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41

Bethel, A. C. W., and Jennifer Hornsby. "Actions." Noûs 19, no. 2 (1985): 280. http://dx.doi.org/10.2307/2214935.

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42

Hu, Yi. "actions." Duke Mathematical Journal 68, no. 1 (1992): 151–84. http://dx.doi.org/10.1215/s0012-7094-92-06806-2.

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Hu, Yi. "actions?" Duke Mathematical Journal 68, no. 3 (1992): 609. http://dx.doi.org/10.1215/s0012-7094-92-06822-0.

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44

Cataldo, Peter. "Actions." New Scholasticism 59, no. 2 (1985): 244–45. http://dx.doi.org/10.5840/newscholas198559233.

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45

Krutmann, J. "Actives." Der Hautarzt 60, no. 4 (2009): 294–300. http://dx.doi.org/10.1007/s00105-008-1624-x.

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46

Buss, Alcides, Ruy Exel, and Ralf Meyer. "Inverse semigroup actions as groupoid actions." Semigroup Forum 85, no. 2 (2012): 227–43. http://dx.doi.org/10.1007/s00233-012-9418-y.

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47

Alves, Marcelo Muniz S., and Eliezer Batista. "Enveloping Actions for Partial Hopf Actions." Communications in Algebra 38, no. 8 (2010): 2872–902. http://dx.doi.org/10.1080/00927870903095582.

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48

Hammond, Paul. "Distinguishing joint actions from collective actions." Synthese 193, no. 9 (2015): 2707–20. http://dx.doi.org/10.1007/s11229-015-0876-0.

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49

Sooraj, Kumar Maurya. "Onto Nature and Forms of Affirmative Action." INTERNATIONAL JOURNAL OF SOCIAL SCIENCE, INNOVATION AND EDUCATIONAL TECHNOLOGIES (ONLINE) - ISSN: 2717-7130 1, no. 3 (2020): 272–80. https://doi.org/10.5281/zenodo.3977172.

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Affirmative Action has been a perpetual issue from its conception to the present. Despite being endlessly discussed since its beginning, a universal agreement on the nature of affirmative Action still appears entirely untouched. Affirmative Action is a public policy designed to compensate the victims of injustice on the cost of others’ possession. Philosophers like Leslie P. Francis say that there should be policy of Affirmative Action for assuring a level playing field. It is because there is a disparity in the social-economical scenario distributed in the community, which is visualized in the form of absenteeism of the candidates belonging to the deprived and under-represented classes from the significant workplaces of a nation. In this paper, the author would make an attempt to analyze the questions related to nature and forms of Affirmative Action. The paper will conclude by advancing the author’s position regarding this issue.

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50

Lassaletta, Luis, Isabel Sánchez-Cuadrado, Juan Manuel Espinosa, et al. "Implantes activos de oído medio." Acta Otorrinolaringológica Española 70, no. 2 (2019): 112–18. http://dx.doi.org/10.1016/j.otorri.2017.10.001.

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