Bibliografías temáticas / Isopets

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Literatura académica sobre el tema "Isopets"

Autor: Grafiati
Publicado: 11 de marzo de 2023

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Artículos de revistas sobre el tema "Isopets"

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Boivin, Jeanne-Marie. "Prologues et épilogues des isopets". Reinardus / Yearbook of the International Reynard Society 11 (15 de noviembre de 1998): 3–23. http://dx.doi.org/10.1075/rein.11.02boi.

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Résumé Sont examines succesivement: Les isopets issus des recueils latins en prose, qui heritent du prologue du Romulus ordinaire une definition sommaire mais precise du genre: celle-ci met en avant les aspects didactique et allegorique, mais escamote le recit plaisant. Les epilogues des traductions de Vinvent de Beauvais, sur le bon usage des fables comme exempla, confirment la gene des auteurs vis a vis de la fiction au cceur de la fabula. Les Fables de Marie de France, qui se rattachent au prologue et a Pepilogue du vieux Romulus, mais devellopent des themes chers a l'auteur des Lais. La conception de l'apologue qui se degage de la preface dissocie le recit de la moralite 'u des cuntes est tut li fes' -'le poids', c'est-a-dire l'essentiel autant que l'essence. Les isopets issus des recueils latins en vers, qui elaborent, dans des textes riches et ori-ginaux, une veritable poetique. Celle-ci temoigne de la defiance du Moyen Age vis a vis des joca melees aux seria dans des ceuvres didactiques et, en depit d'un texte-source precurseur, de la difficile cohabitation du 'corps' et de i'ame' de l'apologue jusqu'au temps ou La Fontaine parviendra a les reconcilier grace a son esthetique de la 'gaiete'.
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Boivin, Jeanne-Marie. "La Vie d'Ésope: un prologue original du recueil de fables de Julien Macho". Reinardus / Yearbook of the International Reynard Society 14 (3 de diciembre de 2001): 69–87. http://dx.doi.org/10.1075/rein.14.06boi.

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En tête de la dernière grande collection de fables médiévales réunie par Heinrich Steinhowel et adaptée en français par Julien Macho, apparaî un texte ancien, mais nouveau en Europe, la Vita Esopi qui venait d’être traduite du grec. Sa position dans le recueil et sa dimension réflexive l’apparentent aux prologues des collections antérieures. La Vie d’Ésope entre en résonance avec la définition de l’apologue héritée du vieux Romulus par les isopets en prose et avec les questions poétiques débattues, à partir du Romulus de Nevelet, par les isopets en vers.
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Puttero, Giorgia. "Le loup a l’âme bonne, ou quand le lupus revêt la peau du lepus". Reinardus / Yearbook of the International Reynard Society 21 (17 de diciembre de 2009): 144–57. http://dx.doi.org/10.1075/rein.21.10put.

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La fable de Phèdre Lupus et Vulpes iudice Simio (I, 10) est assez connue: le loup accuse de vol le renard, lequel, de son côté, nie tout crime. Le juge singe, qui connaît bien la mauvaise réputation des deux contendants, ne s’enquiert pas trop de savoir ce qui s’est effectivement passé et condamne les adversaires au partage du butin. François Le Moine, avocat normand du XVIIe siècle dont il nous reste un fablier manuscrit, reprend cet apologue, mais avec un changement de taille: le singe reconnaît au loup une âme bonne et il le considère incapable de mystifier la vérité. La surprise devant ces affirmations a déclenché une recherche qui nous a mené sur les traces d’un lupus qui, à un moment donné, dans la tradition des Isopets, est devenu un lepus; ce voyage à rebours permet de mieux comprendre cette sentence du juge et de formuler une hypothèse sur la diffusion des Isopets, bien plus vaste qu’on ne le croit habituellement.
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Boivin, Jeanne-Marie. "Des prologues des isopets à ceux des Fables de La Fontaine : l’élaboration d’une poétique". Le Fablier. Revue des Amis de Jean de La Fontaine 10, n.º 1 (1998): 21–27. http://dx.doi.org/10.3406/lefab.1998.1008.

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Brun, Laurent. "Pierre Ruelle (ed.),Recueil général des Isopets, vol. 4:Les Fables d'Eude de Chériton". Zeitschrift für romanische Philologie (ZrP) 120, n.º 1 (febrero de 2004): 190–94. http://dx.doi.org/10.1515/zrph.2004.190.

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Laneville, Charles. "Les animaux dans l’Ésope de Julien Macho". Reinardus / Yearbook of the International Reynard Society 21 (17 de diciembre de 2009): 72–83. http://dx.doi.org/10.1075/rein.21.05lan.

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En 1480, Julien Macho traduit en français la version bilingue latin-allemand des fables d’Ésope faite par Heinrich Steinhöwel quelques années auparavant. L’auteur lyonnais offre ainsi au public français la compilation de fables la plus volumineuse du Moyen Âge français. Ce présent étudie un des éléments constitutifs du genre, les personnages animaliers, en comparant la typologie des animaux à l’oeuvre dans le recueil de Macho à celle des autres traductionsadaptations de la tradition ésopique française, les Isopets. Trois fables sont analysées plus précisément, qui partagent une même situation centrale, celle d’un animal qui prend l’apparence d’un autre mais finit par être démasqué. L’image de l’âne dans les fables est également placée sous un regard nouveau. On remarque alors une grande constance dans les caractéristiques animalières véhiculées à travers les recueils de fables en langue française pendant le Moyen Âge.
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Konstantiniuk, Peter, Iris Steinbrugger, Stephan Koter, Johanna Muehlsteiner, Andreas Wedrich y Tina Cohnert. "Impact of internal carotid endarterectomy on visual fields: a non-randomised prospective cohort study in Austria". BMJ Open 7, n.º 10 (16 de octubre de 2017): e017027. http://dx.doi.org/10.1136/bmjopen-2017-017027.

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PurposeThe goal of this study was to determine whether internal carotid endarterectomy is associated with visual field changes.MethodsBetween March 2007 and December 2010, a cohort study involved 29 patients with stenosis of the carotid artery. All patients underwent ophthalmoscopy and kinetic visual field examination (Goldmann perimetry) preoperatively and postoperatively. Furthermore, a detailed area calculation was performed. On both the operated and the contralateral side, the areas surrounded by the different isopters (isopter areas) were determined and preoperative and postoperative values compared. The three isopters were classified from the centre to the periphery (I, II and III). Isopter area values are given as ratio compared with total perimetric circle. p Values <0.05 were considered to be statistically significant.Results1) The ophthalmologists assessmentEight of eleven patients with precarotid endarterectomy impairments experienced focal or concentric improvement. Six cases with preoperative concentric narrowing of the isopters returned to normal or improved substantially. Three out of 18 patients with normal preoperative visual field presented with deteriorations after surgery, two cases with ipsilateral and one with contralateral focal impairment. In 15 cases, there was no preoperative or postoperative abnormality.2) Area calculation (preoperative area, postoperative area, P)Ipsilateral: isopter area I (0.015, 0.018, 0.131), isopter area II (0.107, 0.120, 0.087), isopter area III (0.392, 0.425, 0.015)Contralateral: isopter area I (0.017, 0.021, 0.222), isopter area II (0.119, 0.125, 0.333), isopter area III (0.416, 0.434, 0.171)ConclusionsWe found a statistically significant extension of the ipsilateral peripheral isopter area (III). Further studies will focus on the question which subgroup is most likely to profit from internal carotid endarterectomy with respect to visual field changes.
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Lawson, Timothy A. y Ray Hilborn. "Equilibrium Yields and Yield Isopleths from a General Age-Structured Model of Harvested Populations". Canadian Journal of Fisheries and Aquatic Sciences 42, n.º 11 (1 de noviembre de 1985): 1766–71. http://dx.doi.org/10.1139/f85-221.

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The equilibrium properties of an age-structured model that includes any arbitrary age-specific weights, vulnerabilities, fecundities, and natural mortality rates, combined with stock–recruitment relationships, are derived. The numbers, biomass, and catch at each age can be calculated quite simply. These relationships can be used to construct yield-isopleth diagrams, or to plot equilibrium yield and biomass against harvest intensity. We used the results to compute yield isopleths for the Pacific halibut (Hippoglossus stenolepis) fishery. The analysis can also include a fishing season of any specified length. Relationships are given to translate the aggregate properties of the age-structured models into several alternative surplus production models.
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Hansen, James A., James S. Goerss y Charles Sampson. "GPCE-AX: An Anisotropic Extension to the Goerss Predicted Consensus Error in Tropical Cyclone Track Forecasts". Weather and Forecasting 26, n.º 3 (1 de junio de 2011): 416–22. http://dx.doi.org/10.1175/2010waf2222410.1.

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Abstract A method to predict an anisotropic expected forecast error distribution for consensus forecasts of tropical cyclone (TC) tracks is presented. The method builds upon the Goerss predicted consensus error (GPCE), which predicts the isotropic radius of the 70% isopleth of expected TC track error. Consensus TC track forecasts are computed as the mean of a collection of TC track forecasts from different models and are basin dependent. A novel aspect of GPCE is that it uses not only the uncertainty in the collection of constituent models to predict expected error, but also other features of the predicted storm, including initial intensity, forecast intensity, and storm speed. The new method, called GPCE along–across (GPCE-AX), takes a similar approach but separates the predicted error into across-track and along-track components. GPCE-AX has been applied to consensus TC track forecasts in the Atlantic (CONU/TVCN, where CONU is consensus version U and TVCN is the track variable consensus) and in the western North Pacific (consensus version W, CONW). The results for both basins indicate that GPCE-AX either outperforms or is equal in quality to GPCE in terms of reliability (the fraction of time verification is bound by the 70% uncertainty isopleths) and sharpness (the area bound by the 70% isopleths). GPCE-AX has been implemented at both the National Hurricane Center and at the Joint Typhoon Warning Center for real-time testing and evaluation.
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Ryan, Phil A. y Terry R. Marshall. "A Niche Definition for Lake Trout (Salvelinus namaycush) and Its Use to Identify Populations at Risk". Canadian Journal of Fisheries and Aquatic Sciences 51, n.º 11 (1 de noviembre de 1994): 2513–19. http://dx.doi.org/10.1139/f94-250.

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Lake trout (Salvelinus namaycush) populations require cold water with high dissolved oxygen content for survival. We developed models that predict the availability of such habitat, using lake mean depth, which describes both the thermal regime and the initial oxygen reserves, and using a measure of primary productivity, which defines the subsequent oxygen demand of the sediments and water column. Measures of primary production include either phosphorus concentration, chlorophyll a concentration, or Secchi disk transparency. The models are presented as a series of seasonal oxygen depletion isopleths that predict the extent to which the oxygen content of thermally suitable habitat is lost during the period of thermal stratification. The presence or absence of native lake trout in lakes of northwestern Ontario superimposed on these graphs indicated that natural populations seldom occur in lakes in which the seasonal oxygen depletion exceeds 40%. This isopleth is a niche boundary in its representation of adverse temperature and oxygen conditions for lake trout. The delineation of this boundary permits the identification of lakes where lake trout populations could be seriously affected by cultural eutrophication, overfishing, or climate warming.
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Tesis sobre el tema "Isopets"

1

Brunet, Johanne. "Sex ratios in terrestrial isopods". Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66212.

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Rogachevskiy, Andrey Valerievich. "Production and trapping of Na isopes for [beta]-decay studies". [S.l. : [Groningen : s.n.] ; University Library Groningen] [Host], 2007. http://irs.ub.rug.nl/ppn//303494689.

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Monteiro, Marta Sofia Soares Craveiro Alves. "Cadmium phytotoxicity and trophic transfer to isopods". Doctoral thesis, Universidade de Aveiro, 2008. http://hdl.handle.net/10773/962.

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Doutoramento em Biologia
O cádmio (Cd) é um metal não essencial e é considerado um poluente prioritário pela comunidade europeia. Este metal atinge o ambiente no decurso de várias actividades antropogénicas e tende a concentrar-se nos solos e sedimentos, onde está potencialmente disponível para as plantas, sendo posteriormente transferido através da cadeia trófica. Neste contexto, o principal objectivo da presente dissertação foi o estudo dos efeitos da assimilação e da acumulação de Cd em plantas e as suas consequências para animais consumidores. Numa primeira fase, foram estudados os principais efeitos fisiológicos e genotóxicos do Cd em plantas. As plantas de alface (Lactuca sativa L.) expostas a Cd apresentaram um decréscimo na eficiência fotossintética, aumento de peroxidação lipídica e alterações significativas na actividade de enzimas de stress oxidativo. Estas alterações culminaram num decréscimo do crescimento da parte aérea no final da exposição. As respostas obtidas pelos parâmetros bioquímicos sugerem que estes poderão ser utilizados como eventuais biomarcadores em testes ecotoxicológicos com Cd em abordagens integrantes em conjunto com parâmetros clássicos. Os efeitos mutagénicos de Cd foram avaliados através da determinação da instabilidade de microsatélites (IM). Não foi observada IM, nem nas folhas nem nas raízes de plantas de alface com 5 semanas de idade expostas a 100 μM Cd durante 14 dias, no entanto observou-se IM em raízes de alface exposta a 10 μM Cd durante 28 dias desde a germinação. A idade da planta e a maior acumulação de Cd nas raízes poderão explicar os resultados obtidos. A clastogenicidade de Cd foi analisada em três espécies vegetais com diferentes capacidades de destoxificação e acumulação de metais através de citometria de fluxo. Foram detectadas alterações significativas nos parâmetros analisados em raízes alface, mas não nas espécies Thlaspi caerulescens J & C Presl e Thlaspi arvense L. Estes resultados sugerem que o stress provocado pelo Cd originou clastogenicidade como consequência da perda de porções de cromossomas, uma vez que o conteúdo de ADN nuclear diminuiu. A transferência trófica através da cadeia alimentar permanece muito pouco estudada em termos ecotoxicológicos. A distribuição subcellular de metais num organismo pode ser utilizada para compreender a transferência trófica de um metal na cadeia alimentar. Como tal, numa última parte é estudado de que modo a distribuição subcellular do Cd em plantas com perfis de acumulação de Cd distintos afecta a biodisponibilidade e transferência trófica de Cd para isópodes. A distribuição de Cd entre as 4 fracções subcelulares obtidas através de centrifugação diferencial revelou a existência de diferenças significativas entre as espécies de plantas. Estes resultados em conjunto com a avaliação directa da eficiência de assimilação (EA) de Cd individual de cada uma das quatro fracções subcelulares das plantas em estudo, resultou em informação de grande relevância para a explicação das diferenças observadas na EA de Cd por parte de isópodes alimentados com folhas de diferentes espécies de plantas. Com base nos resultados obtidos, o Cd ligado a proteínas estáveis à temperatura (e.g. metaloteoninas e fitoquelatinas) é o menos biodisponível, sendo assim o que menos contribuiu para a transferência trófica, enquanto que o Cd ligado a proteínas desnaturadas pela temperatura foi a fracção mais disponível para transferência trófica de Cd ao isópode. Estes resultados realçam a relevância ecológica da distribuição subcelular de Cd em plantas que tem influência directa na tranferência trófica deste metal para os consumidores e ainda o facto de que alterações na distribuição subcelular de Cd em plantas devido a diferentes mecanismos de destoxificação poderá ter um impacto directo na transferência trófica de Cd para o animal consumidor.
Cadmium (Cd) is a non-essential metal and is considered a priority pollutant by the European Community. This metal is released to the environment as a consequence of several anthropogenic activities and tends to accumulate in soils and sediments where it is potentially available to rooted plants causing severe detrimental effects and then transferred to animals through the food chain. In this context, the main objective of the present dissertation is to study the effects of Cd uptake and accumulation in plants and its implications to animal consumers. First, the main physiologic and genotoxic effects of Cd to plants were examined. Cadmium-exposed lettuce (Lactuca sativa L.) plants displayed a significant decrease in photosynthetic efficiency, enhanced lipid peroxidation and alterations in the activities of antioxidant enzymes over the duration of exposure. These alterations culminated in reduced shoot growth at the end of the exposure. The aforementioned biochemical alterations are suggested to be used as plant biomarkers in integrative approaches with classical endpoints in future ecotoxicological tests with Cd. The mutagenic effects of Cd on plants were assessed examining microsatellite instability (MSI). No MSI was found neither in leaves nor roots of 5-week old lettuce plants exposed to 100 μM Cd, but MSI was found in roots of lettuce plants exposed to 10 μM for 28 days from seed germination. The age of the plant at the time and the higher accumulation of Cd in the roots might explain the results obtained. Clastogenic effects of Cd was examined in plants with different metal accumulation and detoxification capacities by flow cytometric (FCM). The endpoints analysed indicated significant alterations in lettuce roots but not in Thlaspi caerulescens J & C Presl and Thlaspi arvense L.. The results obtained suggested that Cd stress may have lead to clastogenic damage as a consequence of loss of chromosome portions because nDNA content was found to be diminished. Trophic transfer through the food chain remains a largely unexplored area of ecotoxicology. Subcellullar distribution of metal accumulated within an organism can be used to understand metal trophic transfer within a food chain. Thus, in a final stage we examined how Cd subcellular distribution in plants with different patterns of Cd accumulation can affect assimilation of Cd by the isopod. The distribution of Cd between the four different subcellular fractions obtained by differential centrifugation revealed significant differences between the plant species. This, together with the direct assessment of isopod Cd AE from individual subcellular fractions of the leaves of the three plant species, resulted in vital information to help explain the differences observed in Cd AE by isopods fed the different type of leaves. On the basis of our results, Cd bound to heat-stable proteins (e.g. phytochelatins and methallothionein) was the least bioavailable to isopods and contributed less to the trophic transfer of Cd, while Cd bound to heat-denatured proteins was the most trophically available to the isopod. These results point to the ecological relevance of the subcellular distribution of consumer and highlight that a shift in Cd subcellular distribution in plants due to different detoxifying mechanisms may have a direct impact in the trophic transfer of Cd to the animal consumer.
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Hames, C. A. C. "The digestive system and metals in terrestrial isopods". Thesis, University of Reading, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234697.

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Hobbins, C. St C. "Some aspects of zonation and systematics of marine isopods". Thesis, Bangor University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305129.

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Kennedy, Fergus. "The locomotor behaviour of peracarid crustaceans on wave-exposed sandy beaches of Chile". Thesis, Bangor University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263174.

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Tuck, Joanne Michelle. "Effects of spatial heterogeneity on the ecology of terrestrial isopods". Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368185.

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Ferreira, Nuno Gonçalo de Carvalho. "The effects of chemicals in isopods: a multi-organizational evaluation". Doctoral thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/14095.

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Doutoramento em Biologia
The global aim of this thesis was to evaluate and assess the effects of a pesticide (dimethoate) and a metal (nickel), as model chemicals, within different organization levels, starting at the detoxification pathways (enzymatic biomarkers) and energy costs associated (energy content quantification, energy consumption and CEA) along with the physiological alterations at the individual and population level (mortality), leading to a metabolomic analysis (using liquid 1H-NMR) and finally a gene expression analysis (transcriptome and RT-qPCR analysis). To better understand potential variations in response to stressors, abiotic factors were also assessed in terrestrial isopods such as temperature, soil moisture and UV radiation. The evaluation performed using biochemical biomarkers and energy related parameters showed that increases in temperature might negatively affect the organisms by generating oxidative stress. It also showed that this species is acclimated to environments with low soil moisture, and that in high moisture scenarios there was a short gap between the optimal and adverse conditions that led to increased mortality. As for UV-R, doses nowadays present have shown to induce significant negative impact on these organisms. The long-term exposure to dimethoate showed that besides the neurotoxicity resulting from acetylcholinesterase inhibition, this stressor also caused oxidative stress. This effect was observed for both concentrations used (recommended field dose application and a below EC50 value) and that its combination with different temperatures (20ºC and 25ºC) showed different response patterns. It was also observed that dimethoate’s degradation rate in soils was higher in the presence of isopods. In a similar study performed with nickel, oxidative stress was also observed. But, in the case of this stressor exposure, organisms showed a strategy where the energetic costs necessary for detoxification (biomarkers) seemed to be compensated by positive alterations in the energy related parameters. In this work we presented for the first time a metabolomic profile of terrestrial isopods exposed to stressors (dimethoate and niquel), since until the moment only a previous study was performed on a metabolomic evaluation in nonexposed isopods. In the first part of the study we identify 24 new metabolites that had not been described previously. On the second part of the study a metabolomic profile variation of abstract non-exposed organism throughout the exposure was presented and finally the metabolomic profile of organisms exposed to dimethoate and nickel. The exposure to nickel suggested alteration in growth, moult, haemocyanin and glutathione synthesis, energy pathways and in osmoregulation. As for the exposure to dimethoate alterations in osmoregulation, energy pathways, moult and neurotransmission were also suggested. In this work it was also presented the first full body transcriptome of a terrestrial isopod from the species Porcellionides pruinosus, which will complement the scarce information available for this group of organisms. This transcriptome also served as base for a RNA-Seq and a RT-qPCR analysis. The results of the RNA-Seq analysis performed in organisms exposed to nickel showed that this stressor negatively impacted at the genetic and epigenetic levels, in the trafficking, storage and elimination of metals, generates oxidative stress, inducing neurotoxicity and also affecting reproduction. These results were confirmed through RT-qPCR. As for the impact of dimethoate on these organisms it was only accessed through RT-qPCR and showed oxidative stress, an impact in neurotransmission, in epigenetic markers, DNA repair and cell cycle impairment. This study allowed the design of an Adverse Outcome Pathway draft that can be used further on for legislative purposes.
Os efeitos negativos de contaminantes de origem antropogénica que aparecem no meio ambiente têm um impacto negativo muitas vezes em organismos considerados benéficos. Dentro deste grupo de organismos podemos incluir os isópodes terrestres, detritivorous, cuja função se baseia na fragmentação de matéria vegetal, que poderão posteriormente ser facilmente colonizados por bactérias e os seus nutrientes incorporados nos solos. Para avaliar os efeitos de contaminantes em isópodes terrestres, mais concretamente na espécie Porcellionides pruinosus, foram usados como modelos o metal níquel e o pesticida dimetoato, fazendo uma abordagem em diferentes níveis organizacionais. O trabalho iniciou-se pela avaliação do impacto a nível das vias de destoxificação (biomarcadores enzimáticos) e reservas energéticas (quantificação das reservas, consumo energético e alocação da energia celular), juntamente com alterações a nível dos indivíduos e da população (mortalidade), passando por uma análise de metabolómica (usando 1H-RMN de líquidos) e finalmente uma análise da expressão génica (transcriptoma e RT-qPCR). De forma a melhor entender as variações que podem ocorrer oriundas de variações de fatores abióticos, foi também realizado um estudo sob os efeitos da variação de temperatura, humidade do solo e radiação UV em isópodes terrestres. A avaliação feita a nível dos biomarcadores bioquímicos, quantificação das reservas e parâmetros energéticos demonstrou que o aumento da temperatura iria afectar negativamente os organismos devido ao stress oxidativo gerado. Tendo em conta que esta espécie está aclimatada a ambientes com solos com humidades baixas, a exposição a solos com humidades superiores mostrou a existência de um pequeno intervalo entre o que são consideradas condições óptimas e condições bastante adversas, sendo aí verifica uma elevada mortalidade. Os efeitos da radiação UV demonstraram que as doses que actualmente chegam à superfície do planeta constituem uma ameaça para os isópodes terrestres. A avaliação feita à toxicidade do dimetoato em biomarcadores bioquímicos, reservas e parâmetros energéticos, demonstrou que além da toxicidade já esperada (inibição da enzima acetilcolinesterase), este stressor induz igualmente stress oxidativo. Este efeito foi observado para ambas as concentrações usadas (dose recomendada de aplicação em campo e dose próxima do EC50) e que a sua combinação com diferentes temperaturas (20ºC resumo e 25ºC) dava origem a diferentes padrões de resposta. Também foi observado que a taxa de degradação do dimetoato era superior em solos com a presença de isópodes. Num estudo semelhante ao anterior, realizado com níquel, foi observada toxicidade induzida por stress oxidativo. No entanto os organismos expostos a este stressor apresentam uma estratégia em que os custos energéticos associados à destoxificação (biomarcadores bioquímicos) parecem ser compensados com alterações positivas a nível dos parâmetros energéticos. Neste trabalho é apresentado pela primeira vez o perfil metabolómico de isópodes terrestres expostos a dimetoato e níquel, sendo que até à data apenas um estudo tinha apresentado o perfil metabólico de isópodes em situação de homeostasia. Na primeira parte do estudo é apresentado o perfil metabólico que identifica 24 novos metabolitos que ainda não tinham sido descritos anteriormente. Numa segunda parte é apresentada uma variação do perfil de organismos não expostos ao longo do ensaio e finalmente são apresentadas as variações metabólicas em organismos expostos a dimetoato e a níquel. Os resultados mostraram que ambos os stressores causaram alterações que eram dependentes da concentração e do tempo. Quando expostos a níquel os organismos evidenciam alterações ao nível do crescimento, muda e síntese de hemocianina e glutationas, alterações ao nível das vias energéticas e na osmorregulação. Em relação aos efeitos da exposição a dimetoato, foram observadas alterações a nível da osmorregulação, das vias energéticas e na muda, mas também ao nível da neurotransmissão. Neste trabalho é apresentado pela primeira vez um transcriptoma completo de um isópode terrestre, da espécie Porcellionides pruinosus. Este transcriptoma veio complementar a atual, mas parca, informação disponível sobre este grupo de organismos. Tendo como base o transcriptoma, foi posteriormente realizada uma análise de RNA-Seq e de RT-qPCR. A análise de RNA-Seq foi realizada apenas em organismos expostos a níquel e mostrou que este stressor tem um impacto ao nível genético e epigenético, no transporte, acumulação e eliminação de metais, gera stress oxidativo, neurotoxicidade e afecta também a reprodução. Estes resultados foram confirmados pela análise feita através de RT-qPCR. Em relação aos efeitos de dimetoato nestes organismos a nível genómico, a sua avaliação foi apenas realizada através de RT-qPCR. Foi observado que este stressor gera stress oxidativo, neurotoxicidade, tem um impacto em marcadores epigenéticos, na reparação de ADN e provoca alterações a nível da divisão celular. Este estudo permitiu a realização de uma “Adverse Outcome Pathway” (AOP) que poderá ser usada mais tarde para fins legislativos.
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Gouws, Gavin. "The biogeography, systematics and conservation of Phreatoicidean isopods in South Africa". Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/16052.

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Dissertation (PhD)--University of Stellenbosch, 2004.
ENGLISH ABSTRACT: Historically, isopods of the suborder Phreatoicidea were thought to be represented in southern Africa by four species belonging to the endemic genus Mesamphisopus. This taxonomy was based on poor collections and the extent of variation among and within populations were poorly understood. In the present study, intensive sampling was undertaken to determine the diversity, distribution and biogeography of phreatoicidean isopods within South Africa. Analyses of allozyme data and mitochondrial DNA sequences (from the 12S rRNA and protein-coding COI genes) were used to examine differentiation among populations, extricate species boundaries (in combination with morphometric and morphological data) and to elucidate the evolutionary relationships among taxa. Additionally, conservation units were identified among the sampled populations and conservation threats highlighted. First, genetic and morphometric differentiation was examined among populations identified morphologically as M. capensis. Collection localities spanned two mountainous regions in the Western Cape and these were separated by a coastal plain remnant. Five morphometrically and genetically distinct species were identified. These taxa are also geographically partitioned in two regions, which were regarded as Evolutionarily Significant Units. Differentiation among populations of the two regions, and similar patterns in other taxa, was attributed to Cenozoic sea-level fluctuations. Second, populations, variably assigned to M. abbreviatus or M. depressus, were examined to determine whether they were conspecific. A large geographic area was sampled to account for intraspecific differentiation. Limited morphometric discrepancies were observed, with individual populations being either similar to the M. abbreviatus or the M. depressus syntypes. Genetic support for the recognition of a cryptic species complex among the sampled populations was equivocal. Substantial genetic differentiation and a lack of gene flow were observed among all populations. Clear patterns of isolation by distance were not detected, and genetic structure appeared to be unrelated to geography or drainage systems. The mosaic pattern of relatedness among populations was best explained by stochastic demographic processes, such as extinction-recolonization events or population bottlenecks.Thirdly, detailed taxonomic descriptions and illustrations of six new species, identified genetically and morphometrically among the populations included in the above analyses, were provided. These species were largely distinguished from each other, and the four original species, using a combination of setation, mouthpart, pleopod and uropod features. Lastly, phylogenetic relationships among all ten recognized Mesamphisopus species, and an additional unresolved group of populations, were examined. MtDNA data partitions and a recoded allele frequency matrix were analysed independently and in combination. Topologies indicated unrecognized species-diversity within an unresolved group of populations. Evolutionary relationships, the identification of six biogeographic centres, and the dating of divergences using a relaxed Bayesian clock suggested that differentiation and speciation within Mesamphisopus was largely allopatric or vicariant and driven by Mesozoic sea-level and climate change. Chance long distance dispersal events would, in turn, explain spurious phylogenetic relationships and distributions. This study contributes significantly to the understanding of the diversity and the conservation of the little-studied southern African freshwater invertebrates. Moreover, this study is the first to investigate genetic and morphometric differentiation, and phylogenetic relationships, below the generic level within the Phreatoicidea; thus establishing a methodological and theoretical framework for species delineation and the accurate determination of biodiversity within individual phreatoicidean genera.
AFRIKAANSE OPSOMMING: Isopoda van die suborder Phreatoicidea was histories in suidelike Afrika verteenwoordig deur vier spesies wat almal aan die endemiese genus Mesamphisopus behoort. Hierdie taksonomie is op ’n beperkte hoeveelheid versamelings gebaseer en die omvang van variasie tussen (en binne) bevolkings was swak verstaan. In die huidige studie is ekstensiewe versameling onderneem om die verspreiding, diversiteit asook biogeografie van dié Isopoda in Suid Afrika te bepaal. Analises van allosiem data en mitokondriale DNS volgorderbepalings (van die 12S rRNS en die proteïenkoderende COI geen) was gebruik om differensiasie tussen bevolkings te ondersoek, om (in kombinasie met morfometriese en morfologiese data) spesiesgrense te bepaal asook om die evolusionêre-verwantskappe tussen taksa te definieer. Benewens word bewaringseenhede binne die studie-bevolkings geïndentifiseer en moontlike bedreigings uitgelig. Eerstens is genetiese en morfometriese differensiasie tussen bevolkings, wat as M. capensis geïdentifiseer is, ondersoek. Versamelingslokaliteite was versprei oor twee bergagtige streke in die Weskaap wat geskei word deur ’n voormalige kusvlakte. Vyf morfometries- en geneties-afsonderlike spesies is geïdentifiseer. Dié taksa was geografies geskei tot die twee streke, wat elk as ’n Evolusionêre Beduidende Eenheid (ESU) gesien kan word. Differensiasie tussen populasies van die twee streke en vergelykbare patrone binne ander taksa word aan Cenosoïese seevlak veranderings toegeskryf. Tweedens is bevolkings wat as M. abbreviatus óf as M. depressus geïdentifiseer kan word ondersoek om te bepaal of hulle konspesifiek is. Bevolkings is oor ’n groot geografiese gebied versamel om intraspesifieke variasie in aanmerking te neem. Beperkte morfometriese verskille is waargeneem – enkel bevolkings was morfometries identies aan of die M. abbreviatus of die M. depressus sintipes. Genetiese getuienis vir die herkenning van ’n kriptiese spesieskompleks was dubbelsinnig. Bevolkings is gekenmerk deur merkbare genetiese differensiasie en die afwesigheid van geenvloei. Duidelike bewys van isolasie-metafstand was nie waargeneem nie en genetiese struktuur was nie verwant aan geografiese ligging of riviersisteme nie. Die mosaïese patroon van verwantskappe is moontlik teweeg gebring deur stogastiese demografiese prosesse soos uitsterwing en hervestiging of deur afnames in bevolkingsgrootte.Derdens is omvattende taksnomiese beskrywings en illustrasies van ses nuwe spesies wat deur bogenoemde analises geneties en morfometries uitgelig was, verskaf. Dié spesies is van mekaar, asook die ander vier spesies onderskeibaar deur ’n kombinasie van setasie-, monddeel-, pleiopoot- en uropooteienskappe. Laastens is die filogenetiese verwantskappe tussen al tien herkende Mesamphisopus-spesies en ’n groep bevolkings waarvan verhoudings onseker was, ondersoek. MtDNS datastelle en ’n hergekodeerde alleelfrekwensie matriks is afsonderlike en in kombinasie geanaliseer. Topologië het onherkende spesies-vlak diversiteit binne die bogenoemde groep bevolkings aangedui. Evolusionêre verwantskappe, die herkenning van ses biogeografiese gebiede, en die bepaling van tye van divergensie (d.m.v. ’n ontspanne Bayesiaanse molekulêre klok) het aangetoon dat spesiasie binne Mesamphisopus grootliks allopatries was en deur Mesosoïese seevlak- en klimaatsveranderings teweeg gebring is. Toevallige lang-aftstand verspreiding kon dan eienaardige filogenetiese verhoudings en verspreidings verklaar. Dié studie lewer ’n wesenlike bydrae tot die kennis van die diversiteit en tot die bewaring van die onbestudeerde Suid Afrikaanse varswater ongewerweldes. Daarenbowe, is hierdie studie die eerste om genetiese en morfometriese differensiasie benede die genusvlak binne die Phreatoicidea te ondersoek; sodoende word die metodologiese en teoretiese raamwerk vir die herkenning van spesies en die akkurate beskrywing van diversiteit binne afsonderlike genera van die Phreatoicidea geskep.
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Judd, Simon L. "Terrestrial isopods (Crustacea: Oniscidea) and biogeographical patterns from South-Western Australia". Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2004. https://ro.ecu.edu.au/theses/1613.

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This thesis examines terrestrial isopod (Crustacea: Oniscidea) diversity and biogeography from south-western Australia, a region already recognised for the exceptional high biodiversity and concentrations of endemic species. A taxonomic investigation of isopods in the Western Australian Museum and material collected systematically as part of this study revealed seventy taxa, sixty of which were considered native species. The thesis provides a comprehensive review of regional taxonomic history and includes a key, complete with a set of forty characters states and taxa, illustrated by a number of photographic plates that are designed for use by specialists and non-specialists alike. Prior to this study all the region's indigenous terrestrial isopods were poorly described and, while many taxa are still to be resolved at the species level, it appears at least 35 species are new to science. The distributions of indigenous taxa form some clear and consistent biogeographical patterns. Distributions of taxa are influenced by steep rainfall gradients, the seasonality of rainfall and by biophysical characteristics of the landscape including, localised landforms and differing microhabitat utilisation. The region is one of high diversity, with both widely distributed species and highly localised endemics. Two areas, the Perth region of the Swan Coastal Plain and the tall, wet southern forests, are particularly species rich. Beta diversity is also high. This reflects a heterogeneous landscape with profound differences in microhabitat availability, differences often due to recent exogenous disturbance. The construction of a biogeographic model showed a major fauna/ break, which created northern and southern bioregions to which 68% of the taxa were endemic. This biogeographical boundary is significant in that it had not been recognised in any previous biogeographical schemes. Data derived from the analysis of soil, leaf litter and log microhabitat samples show that the existence of terrestrial isopods in south-western Australia is intractably related to organic matter. The geographical range of species is often best explained by the types of microhabitat utilised and their degree of moisture dependency. The wetter forests of the region contain relictual short range endemics reliant upon surface organic matter, particularly leaf litter. Moisture is clearly a limiting factor in the distribution of all species. The five most common genera can be differentiated by their dependence upon different moisture regimes in a range of microhabitat types. The spatial and temporal continuity of different types of organic matter in forested landscapes is considered critical to the conservation of the group in south-Western Australia. Land management practices, such as logging and burning, which influence the nature and distribution of organic matter, are likely to induce profound changes in terrestrial isopod communities. Regular and broadscale prescription burning and the increasing scarcity of large and decayed logs are considered to be a primary threat to their conservation status. Hypotheses involving the historical role of surface organic matter are developed to explain the speciation patterns of the group in the region. In order to test these models, and to provide an urgently needed assessment of the conservation status of relictual forest invertebrates, clear taxonomic priorities are recommended.
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Libros sobre el tema "Isopets"

1

Pierre, Ruelle, Odo, of Cheriton, d. 1247. y Société des Anciens Textes Français., eds. Recueil général des Isopets. Paris: Société des Anciens Textes Français, 1999.

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Lydgate, John. Isopes Fabules. Kalamazoo, Michigan: Medieval Institute Publications, 2013.

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Commission on Preservation and Access., ed. Isoperms: An environmental management tool. Washington, D.C: Commission on Preservation and Access, 1994.

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Warburg, Michael R. Evolutionary Biology of Land Isopods. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-21889-1.

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Warburg, M. R. Evolutionary biology of land isopods. Berlin: Springer-Verlag, 1993.

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Poitiers), Symposium International sur la Biologie des Isopodes Terrestres (3rd 1990. The biology of terrestrial isopods: Proceedings ... Poitiers: Universite de Poitiers, 1991.

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Giant isopods and other crafty crustaceans. Chicago, Ill: Raintree, 2012.

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Symposium on the Biology of Terrestrial Isopods (2nd 1986 Urbino, Italy). Proceedings of the Second Symposium on the Biology of Terrestrial Isopods. Editado por Ferrara Franco y Argano Roberto. [Florence: Università degli Studi di Firenze, 1989.

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Kaim-Malka, Richard A. The spatheform organ: A ballasting organ in crustacean peracarid species : amphipods and isopods. Verona: Museo Civico di Storia Naturale di Verona, 2010.

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Symposium, on the Biology of Terrestrial Isopods (3rd 1990 Poitiers France). Third Symposium on the Biology of Terrestrial Isopods, Poitiers, France, 10-12 July 1990. Poitiers: Université de Poitiers, 1990.

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Capítulos de libros sobre el tema "Isopets"

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Boivin, Jeanne-Marie. "Rhétorique et poétique des Isopets : les enjeux de la traduction des apologues en français". En The Medieval Translator, 57–74. Turnhout: Brepols Publishers, 2007. http://dx.doi.org/10.1484/m.tmt-eb.5.109120.

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Brusca, Richard C. y Ingo S. Wehrtmann. "Isopods". En Marine Biodiversity of Costa Rica, Central America, 257–64. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-1-4020-8278-8_23.

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Schmieder, Robert W. "Isopods from Rocas Alijos". En Rocas Alijos, 275. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-017-2917-8_21.

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Hess, R. T. y G. O. Poinar. "Iridoviruses Infecting Terrestrial Isopods and Nematodes". En Iridoviridae, 49–76. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70280-8_4.

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Warburg, Michael R. "Taxonomy". En Evolutionary Biology of Land Isopods, 1–3. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-21889-1_1.

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Warburg, Michael R. "Distribution Patterns of Isopod Species in Different Habitats". En Evolutionary Biology of Land Isopods, 70–84. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-21889-1_10.

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Warburg, Michael R. "The Reproductive System and Reproduction". En Evolutionary Biology of Land Isopods, 85–100. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-21889-1_11.

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Warburg, Michael R. "Population Structure and Fluctuation". En Evolutionary Biology of Land Isopods, 101–7. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-21889-1_12.

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Warburg, Michael R. "Conclusions". En Evolutionary Biology of Land Isopods, 108–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-21889-1_13.

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Warburg, Michael R. "The Integument and Moult". En Evolutionary Biology of Land Isopods, 4–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-21889-1_2.

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Actas de conferencias sobre el tema "Isopets"

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Campbell, Robert P., M. David Checkel y David J. Wilson. "Measurements of Time-Varying Jet Isopleths Using Dual Light Sheet PLIF". En ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-gt-028.

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Mass transfer analogies have long been used to experimentally determine the distribution of cooling fluid through pointwise sampling for turbine blade, nozzle or combustor film cooling. The behavior of a turbulent jet or plume flowing into its surroundings cannot be fully understood from point measurements alone, however. Full-field measurement of the instantaneous distribution of cooling fluid can reveal the structure and mechanisms governing cooling performance. This paper describes an improved dual light sheet PLIF (Planar Laser Induced Fluorescence) technique developed for full field concentration measurements. An analytical model of laser light sheet / fluorescent dye interaction was formulated and used to evaluate the light sheet attenuation corrections. With the more common single light sheet technique, these corrections lead to substantial concentration uncertainty which can be substantially reduced by using a dual light sheet. The dual light sheet technique was used to study the time-varying position and area of concentration isopleths for a round jet issuing into quiescent surroundings. Results show that, although concentrations at any point vary widely with time, the area within a given concentration isopleth remains virtually constant.
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SAMPAIO, Allefy Teles y Tiago Alves MORAIS. "BLOCOS ISOPET: UMA ALTERNATIVA SUSTENTÁVEL NA CONSTRUÇÃO CIVIL". En II Mostra SEC UFC. Recife, Brasil: Even3, 2021. http://dx.doi.org/10.29327/132568.2-4.

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Teles Sampaio, Allefy y Tiago Alves Morais. "BLOCOS ISOPET: UMA ALTERNATIVA SUSTENTÁVEL NA CONSTRUÇÃO CIVIL". En II Mostra SEC. ,: Even3, 2021. http://dx.doi.org/10.29327/iimostrasecufc.299590.

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Kurian, V. J., J. K. Febik, N. Bolong y I. Zakaria. "Isopleths for Rainfall Data in Sabah". En World Environmental and Water Resources Congress 2006. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40856(200)218.

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Mukundan, R., V. Lokesh y M. K. Kumar. "iSOPs and Emerging Markets". En 2006 IEEE International Conference on Management of Innovation and Technology. IEEE, 2006. http://dx.doi.org/10.1109/icmit.2006.262183.

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Remesicova, Erika. "TERRESTRIAL ISOPODS OF THE MINING LANDSCAPE (DOLNI SUCHA, CZECH REPUBLIC)". En 14th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION. Stef92 Technology, 2014. http://dx.doi.org/10.5593/sgem2014/b52/s20.088.

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Shan, X. Y. "Implementation and application of ISOPE algorithms". En International Conference on Control '94. IEE, 1994. http://dx.doi.org/10.1049/cp:19940175.

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Katayama, Satoshi, Tomotaka Wada y Young-Bok Choi. "Clustering control in isopleth-oriented ad hoc communication for disaster detection". En 2016 Eighth International Conference on Ubiquitous and Future Networks (ICUFN). IEEE, 2016. http://dx.doi.org/10.1109/icufn.2016.7537124.

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Nachlas, William O. y Jay B. Thomas. "ALUMINUM SOLUBILITY IN QUARTZ AND APPLICATION OF THE SINGLE MINERAL CROSSING ISOPLETHS METHOD". En GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-322429.

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Prelovsek, Sasa. "A lattice study of light scalar tetraquarks with isopins 0, 1/2 and 1". En The XXVI International Symposium on Lattice Field Theory. Trieste, Italy: Sissa Medialab, 2009. http://dx.doi.org/10.22323/1.066.0102.

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Informes sobre el tema "Isopets"

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Simpson, J. C. y A. R. Olsen. Uncertainty in North America wet deposition isopleth maps: Effect of site selection and valid sample criteria. Office of Scientific and Technical Information (OSTI), abril de 1990. http://dx.doi.org/10.2172/7000106.

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Trimor, P. NESHAP Dose-Release Factor Isopleths for Five Source-to-Receptor Distances from the Center of Site and H-Area for all Compass Sectors at SRS using CAP88-PC Version 4.0. Office of Scientific and Technical Information (OSTI), agosto de 2017. http://dx.doi.org/10.2172/1375188.

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Isopleth maps of titanium, aluminum, and associated elements in stream sediments of West Virginia. US Geological Survey, 1994. http://dx.doi.org/10.3133/i2364g.

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Isopleth maps of iron, manganese, vanadium, and related elements in stream sediments of West Virginia. US Geological Survey, 1994. http://dx.doi.org/10.3133/i2364d.

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Surficial sediment isopleth maps of sand, silt, and clay, offshore the Isle Dernieres barrier islands, Louisiana. US Geological Survey, 1989. http://dx.doi.org/10.3133/i2004.

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Isopleth maps of uranium, thorium, cerium, lanthanum, and related elements in stream sediments of West Virginia. US Geological Survey, 1994. http://dx.doi.org/10.3133/i2364f.

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Isopleth maps of pH and alkalinity in stream waters, and sodium in stream sediments of West Virginia. US Geological Survey, 1994. http://dx.doi.org/10.3133/i2364e.

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Isopleth maps showing above-median concentrations of lead and copper in stream-sediment concentrate, Glens Falls 1 degree by 2 degrees Quadrangle, New York, Vermont, and New Hampshire. US Geological Survey, 1992. http://dx.doi.org/10.3133/i2161b.

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Isopleth maps showing above-median concentrations of tungsten and tin in stream-sediment concentrate, Glens Falls 1 degree by 2 degrees Quadrangle, New York, Vermont, and New Hampshire. US Geological Survey, 1992. http://dx.doi.org/10.3133/i2161c.

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Isopleth maps showing above-median concentrations of barium and strontium in stream-sediment concentrate, Glens Falls 1 degree by 2 degrees Quadrangle, New York, Vermont, and New Hampshire. US Geological Survey, 1992. http://dx.doi.org/10.3133/i2161d.

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