Search results for "MARS"

Predicting the landslides triggered by the 2009 96E/Ida tropical storms in the Ilopango caldera area (El Salvador, CA): optimizing MARS-based model b…

2019

The main topic of this research was to evaluate the effect in the performance of stochastic landslide susceptibility models, produced by differences between the triggering events of the calibration and validation datasets. In the Caldera Ilopango area (El Salvador), MARS (multivariate adaptive regression splines)-based susceptibility modeling was applied using a set of physical–environmental predictors and two remotely recognized landslide inventories: one dated at 2003 (1503 landslides), which was the result of a normal rainfall season, and one which was produced by the combined effect of the Ida hurricane and the 96E tropical depression in 2009 (2237 landslides). Both the event inventorie…

Disappearance rates of old nest material from tree cavities : an experimental study

2013

Numerous forest organisms critically depend on availability of tree cavities. Some birds and rodents fill their cavities with bulky nests, which – if not removed – could accumulate and render cavities unusable, as recorded in nest-box studies. Data from earlier studies indicate that old nests can disappear from tree cavities so fast that practically no remnants are detectable the following spring. Rapid decomposition of nests in situ, augmented by physical removal of nest material by the cavity-users have been proposed as possible causative mechanisms. We tested these hypotheses in cavities used by tits (Parus major L., Poecile palustris L.) in the Białowieża National Park (E Poland). To mi…

Histological changes in odontogenic parakeratinized keratocysts treated with marsupialization followed by enucleation

2020

Background The purpose of this study was to evaluate whether marsupialization treatment induces changes in the histology of odontogenic keratocyst epithelium and to compare our experience with the literature. Material and Methods A retrospective revision of histological samples was performed. 5 patients with odontogenic keratocyst treated with marsupialization follow by enucleation were selected. Histologic evaluation analyzed the changes in the keratocyst epithelium after marsupialization in terms of type of keratinization, thickness of the epithelium and connective tissue, the presence of acanthosis, the presence and grade of fibrosis, the type and grade of inflammation and the presence a…

Euroméditerranée: un progetto per il futuro sostenibile di Marsiglia

2014

Alla fine del xx secolo, la città di Marsiglia subisce una forte crisi causata dal declino delle attività industriali e portuali, sulle quali si basava l’economia della città. Nonostante la crisi, Marsiglia è riuscita a reagire portando avanti nuove strategie economiche e urbane. Nello specifico, l’articolo analizza le due fasi del progetto di riqualificazione urbana Euroméditerranée, promosso dall’Etablissement Public d'Aménagement Méditerranée. Quest’ambizioso progetto ha lo scopo di riposizionare la città al centro della sua regione e più in generale al centro del territorio mediterraneo. Il progetto Euroméditerranée I (1995-2015) concerne la riqualificazione del waterfront e del patrimo…

A synthesis of methane emissions from 71 northern, temperate, and subtropical wetlands

2014

Wetlands are the largest natural source of atmospheric methane. Here, we assess controls on methane flux using a database of approximately 19 000 instantaneous measurements from 71 wetland sites located across subtropical, temperate, and northern high latitude regions. Our analyses confirm general controls on wetland methane emissions from soil temperature, water table, and vegetation, but also show that these relationships are modified depending on wetland type (bog, fen, or swamp), region (subarctic to temperate), and disturbance. Fen methane flux was more sensitive to vegetation and less sensitive to temperature than bog or swamp fluxes. The optimal water table for methane flux was consi…

Bando, 1720, 09, 03

Com a tít. el començament del text Sign.: [ ]2 Reclams Cristus a la part superior de la 1ª pàg

Copia de una carta del Señor Obispo de Marsella de seis de septiembre : en que se da quenta de la peste de aquella ciudad y del estado en que se hall…

Text a 1 col. - Reclams Sign.: A2

Relacion succinta tocante a los accidentes de la peste de Marsella su pronostico y curacion : remitida al cavallero de Langeron ...

Sign.: a-d4, e2 Port. amb orla tip

Planning of gravimetric investigations on mars

2004

We propose to install a balance at the surface of Mars. In this paper we present a survey on tasks which could be accomplished by means of a balance. The determination of the specific surface area and porosity of Martian soil and other sorption experiments are discussed. Criteria for the choice of a suitable balance type are given.

Molecular-genetic-based contribution to the taxonomy of theAcanthocyclops robustusgroup

2013

Long-standing taxonomic problems involving the Acanthocyclops robustus–vernalis complex of freshwater cyclopoids have not been resolved. After Kiefer's designation of A. robustus Sars as an older synonym of Acanthocycops americanus Marsh, a lot of data indicating their differentiation have been accumulated. To handle this taxonomical problem, representative populations from type localities of the respective taxa and from other European and US sites were analyzed morphologically and genetically using mitochondrial COI and 12S rRNA. Molecular-genetic analysis revealed that the three species described at the end of the nineteenth century: A. robustus, A. americanus and A. vernalis are well-sep…