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Host-parasite distribution patterns under simulated climate: implications for tick-borne diseases

Host-parasite distribution patterns under simulated climate: implications for tick-borne diseases
Sur l'exemple de l'Afrique subsaharienne, essai de modélisation des relations complexes entre le climat, les tiques et leurs hôtes vertébrés. Il en résulte notamment que le changement climatique annoncé pour le XXIème siècle pourrait entraîner une

Implication des parasites digènes dans la mortalité des coques (Cerastoderma edule) et mécanismes de favorisation

Implication des parasites digènes dans la mortalité des coques (Cerastoderma edule) et mécanismes de favorisation
Role of digenean parasites in the mortality of Cerastoderma edule and mecanisms of favorization
Bivalvia ; Brackish water environment ; Cerastoderma edule ; Depth ; Environmental factor ; Helmintha ; Host ; Host parasite relation ; Invertebrata ; Mollusca ; Mortality ; Parasitism ; Plathelmintha ; Seasonal variation ; Trematoda
Bivalvia ; Cerastoderma edule ; Facteur milieu ; Helmintha ; Hôte ; Invertebrata ; Milieu saumâtre ; Mollusca ; Mortalité ; Parasitisme ; Plathelmintha ; Profondeur ; Relation hôte parasite ; Trematoda ; Variation saisonnière
Le parasitisme en tant que facteur de mortalité chez les invertébrés marins a été peu étudié. Dans la présente étude, ont été considérés deux parasites digènes, Himasthla sp. et Labratrema minimus, et un bivalve endogé, la coque Cerastoderma edule
, hôte de ces parasites. Un suivi, effectué tous les deux jours de janvier 1999 à février 2000, a permis de mettre en évidence un flux régulier de remontée de coques vers la surface du sédiment (28 coques/7 jours), ces coques disparaissant rapidement. En
charges parasitaires entre coques « de surface » et « de profondeur ». La théorie de « favorisation », selon laquelle les parasites induiraient la remontée des coques à la surface du sédiment afin d'être ingérés par les prédateurs (hôtes définitifs), ne

Population biology of infections diseases: Part II

. Consideration is given to the relation between the ecology and evolution of the transmission processes and the overall dynamics, and to the mechanisms that can produce cyclic patterns, or multiple stable states, in the levels of injection in the host population.
In the second part of this article, the discussion is extended to both microparasites (viruses, bacteria and protozoa) and macroparasites (helmiuths and arthropods), transmitted either directly or indirectly via one or more intermediate hosts

Sur Michel Serres, philosophe. De la philosophie à la géographie. Le passage du Nord-Ouest. Réflexions sur Le Parasite

Sur Michel Serres, philosophe. De la philosophie à la géographie. Le passage du Nord-Ouest. Réflexions sur Le Parasite
dernière contribution sur le Parasite éclaire ce que peut être une géographie basée sur les relations. (Cch).
Trois séries de réflexions inspirées à trois géographes par la lecture de deux ouvrages de Michel Serres: Le Passage du Nord-Ouest et Le Parasite. Réflexions d'ordre épistémologique pour les deux premières contributions: sur l'échelle, la limite, le

Humanitarian assistance to refugees in rural Ghana : implications for refugee-host relations

Humanitarian assistance to refugees in rural Ghana : implications for refugee-host relations
Les réfugiés ont besoin d'aide pour survivre, notamment dans la phase de secours d'urgence dès leur arrivée dans les communautés d'accueil. L'A. aborde les implications de cette aide aux réfugiés du camp Krisan au niveau des relations entre réfugiés

O QUE VEIO ANTES, O CARAMUJO OU O OUO? O PROBLEMA DE DIFUSAO DA ESQUISTOSSOMOSE NO BRASIL

DIFFUSION, UNE RELATION ENTRE LES ESCLAVES AFRICAINS, LA CULTURE DE LA CANNE A SUCRE ET L'EXTENSION DES SCHISTOSOMIASES: ELLES MIGRERENT AVEC LES HOMMES LORS DE LA COLONISATION DES TERRES NEUVES. ELLES SONT A L'ETAT ENDEMIQUE AVEC TAUX ELEVE DE CONTAMINATION
DANS LE NORDESTE, AVEC TAUX PLUS FAIBLE DANS LE SUDESTE. LA TRANSMISSION PEUT SE FAIRE DE MAMMIFERE A MAMMIFERE, DE VER PARASITE A VER PARASITE, DE MAMMIFERE A VER PARASITE ET VICE-VERSA. L'HOMME EN EST INFESTE PAR L'INTERMEDIAIRE DE L'EAU. UNE

Population biology of infections diseases: PartI

If the host population is taken to be a dynamic variable (rather than constant, as conventionally assumed), a wider understanding of the population biology of infections diseases emerges. In this first part of a two-part article, mathematical models
are developed, shown to fit data from laboratory experiments, and used to explore the evolutionary relations among transmission parameters.

Exploring the emergence of the subject in power : infant geographies

BUTLER (J.) ; Géographie appliquée ; Mobilisation ; Nourrisson ; Pouvoir ; Relations sociales ; Subjectivation ; Sujétion ; Théorie ; Théorie non-représentationnelle
Agency ; Applied geography ; Infant ; Nonrepresentational theory ; Power ; Societal relations ; Subjectivity processes ; Theory
This paper explores the emergence of the subject in power through infant geographies. It focuses upon how subjection occurs in specific material spaces, and the role of a host of human and nonhuman others to the process of subjection. It also
analyses how diversities of kinship and nonkinship social relations might lead to other constellations of power in the subjection of infants. How the geographies of infants can be operationalised methodologically and epistemologically is also studied.

Die schweizerische EXPO 02 und ihr Raumbezug

L'exposition suisse EXPO 02 et ses relations avec l'espace
the analysis of the spatial relationship of such large events is instructive : on the one hand they always constitute a major trial of strength for the host region. On the other hand events that have large-scale and formative impacts are in demand in the age

New-build studentification : a panacea for balanced communities?

Brighton ; Centre-ville ; Communauté ; Conflit ; England ; Espace urbain ; Etudiants ; Géographie sociale ; Localisation ; Logement ; Relations sociales ; Royaume-Uni
Community ; Conflict ; England ; Housing ; Inner city ; Location ; Social geography ; Societal relations ; Students ; United Kingdom ; Urban area
This paper examines the rising concern about the negative impacts of students on ‘host communities’ through the example of a purpose-built student accommodation (PBSA) in Brighton. It shows that the location of this development in a densely
populated neighbourhood has engendered adverse student/community relations, conflict, feelings of dispossession and displacement of established local residents. It is asserted that future developments of PBSA should be mindful of these issues

Ecological epidemiology : the role of landscape structure in the transmission risk of the fox tapeworm Echinococcus multilocularis (Leukart 1863) (Cestoda : Cyclophyllidea : Taeniidae)

Analyse spatiale ; Chine ; Cycle de vie ; Ecologie ; Ecologie du paysage ; Epidémiologie ; Habitat ; Maladie ; Parasite ; Renard ; Risque ; Risque de transmission ; Utilisation du sol
in relation to each component of its lifecycle. Recent research indicates that landscape plays an important role in creating the necessary habitat conditions for natural transmission. Defining the landscape involves the use of satellites imagery, land cover

Landschaftsokologische Analyse der in Baden-Württemberg aufgetretenen Zecken-Encephalitis. (Analyse d'écologie régionale de l'encéphalite due aux tiques que l'on rencontre dans le pays de Bade-Wurtemberg)

(1969-1976) ; Allemagne de l'Ouest ; Baden-Wurttemberg ; Bioclimatologie ; Ecologie humaine ; Encéphalite ; Europe centrale ; Géographie humaine ; Parasite ; Pathologie régionale ; Santé ; Tique
were analysed regarding their localization to the zones of potential natural vegetation resp. to climatological data. In Baden-Württemberg there are pointed out 8 natural foci in relation to vegetation and climate.

Joint implementation projects to reduce greenhouse gas emissions: prospects for Poland

to reduce greenhouse gases in the territory of the host country. Particular attention is focussed on JI criteria, options for organizing a JI Secretariat, and legal issues related to negotiations and contracts the Government of Poland would undertake

GIS Web technologies for delivery of coastal zone information

of Geographic Information Systems (GIS) and a host of related technologies ranging from remote sensing to digital image processing, from techniques for modeling the processes under investigation to advanced data visualization tools for presenting the results
. This paper examines the extent to which GIS tools and related Information and Imaging Technologies (IIT) have advanced in recent years. Can these new tools assist the researcher and manager in Integrated Coastal Zone Management (ICZM), especially in regard
to delivery of information in a variety of ways, useful for a wide range of purposes, via appropriate media and mechanisms? Are current GIS and related ITT tools sufficient for the information processing and dissemination tasks facing these people, especially

Lithological and structural guidance on speleogenesis in Spluga della Preta cave, Lessini Mountains (Veneto, Italy)

in the whole karst system and detailed surface geological surveys were carried out. The step-like profile of the cave was initially considered as a consequence of base-level lowering stages related to the entrenchment of the nearby Adige River. In this work
, whereas the active streams are now deepened along secondary joints. Morphological analysis allows inference of a hypothesis concerning the speleogenetic evolution of the cave and its relationship with an upper perched aquifer hosted in the Cretaceous

The influence of bedrock orientation on the landscape evolution, surface morphology and denudation (10Be) at the Niesen, Switzerland

The study site is located in the Bernese Oberland, between the Frutigen and Diemtigen Valleys. The Niesen nappe presents here a unique setting in which opposite facing flanks host basins underlain by identical lithologies, but contrasting litho
that is interpreted as having been controlled by climatically driven factors. These findings illustrate that while the landscape properties in this part of the northern Alpine border can mainly be related to the tectonic architecture of the underlying bedrock

Space for the state? police, violence, and urban poverty in Brazil

actor one moment and nonstate actor the next), it unpacks the state–society contradictions embodied by police. It argues that state–society imaginaries are fraught with a host of epistemological tensions and that police work—and, in particular, moments
and civil society—and the discretion state actors hold over nonstate actors—relates to moments of police violence and ongoing abuse.

Does rural broadband impact jobs and income? Evidence from spatial and first-differenced regressions

The relationships between broadband adoption/availability and jobs/income in rural areas are analyzed after controlling for a host of potentially influential variables such as age, race, educational attainment, transportation infrastructure
, and the presence of natural amenities. Results from spatial error models using 2011 data provide evidence that high levels of broadband adoption in non-metro counties are positively related to the number of firms and total employees in those counties. The first

O próbie zastosowania teorii chaosu do opisu zjawiska ewolucji obszaru turystycznego

The phenomenon of the evolution of tourist areas is taken to comprise a series of consecutive changes ongoing wherever tourist visits are played host to, thanks to which the said areas become subject to socioeconomic change. This is the process
described in the subject literature by reference to a so-called “life cycle”, an approach that has come to be regarded as one of the most successful theoretical conceptualisations ever arrived at in the study of tourism-related phenomena. In fact, what

Relations between Yugoslavia and the Vatican

Relations between Yugoslavia and the Vatican
Géographie de l'Europe ; Relations internationales ; Siècle 20 ; Vatican ; Yougoslavie
Evolution of the relations between those countries from the begining of the century.

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