Search results for " Local"
showing 10 items of 2101 documents
Remarks on IEEE 802.11 DCF Performance Evaluation, IEEE Communication Letters, Vol. 9, Issue 8, Aug 2005 pp:765 - 767
2005
This letter presents a new approach to evaluate the throughput/delay performance of the 802.11 Distributed Coordination Function (DCF). Our approach relies on elementary conditional probability arguments rather than bidimensional Markov chains (as proposed in previous models), and can be easily extended to account for backoff operation more general than DCF's one
On the accuracy of some common modeling assumptions for EDCA analysis
2005
Several models have been discussed in literature in order to evaluate the performance of the EDCA differentiation mechanisms. Despite of the exponential back off rules, usually the EDCA protocol has been modeled as a persistent slotted access protocol, and summarized into a set of access probabilities. These models often show a very different complexity and accuracy, according to the basis assumptions. In this paper, we propose a new modeling approach for EDCA, in which the medium access is described in terms of backoff counter comparisons, contention by contention, and no restrictive hypothesis is considered. Through our model, we verify the applicability of the most common protocol simpli…
Nonuniform sediment transport estimation in non-equlibrium situations: study cases
2014
Obrazy brudu - brud w obrazowaniu górnośląskich krytyków kultury
2012
La tutela del Patrimonio Storico e Artistico d’interesse religioso nelle autonomie speciali. Due esempi a confronto: Sicilia e Catalogna
2010
Partendo dall’analisi delle caratteristiche comuni al regionalismo c.d. “asimmetrico” italiano e spagnolo, il saggio si propone di utilizzare il paradigma offerto, rispettivamente, dal modello siciliano e catalano, per studiarne l’incidenza sulla regolamentazione e gestione dei beni culturali d’interesse religioso, sia unilaterale sia concertata con le autorità ecclesiastiche. L’obiettivo primario è di fare emergere, attraverso il confronto dei rispettivi regimi, gli elementi di specialità che sono riscontrabili nell’organizzazione del settore e nella relativa disciplina, a causa dell’autonomia differenziata che contraddistingue i due enti regionali; con una particolare attenzione a quelli …
Ánalisis, Identificación y Puesta en Valor del último horno moruno en el barrio de Obradors
2018
El patrimonio industrial continúa siendo en España un patrimonio incomprendido y olvidado. La obsolescencia del sector industrial al que estos bienes van unidos y su ubicación, en muchos casos, en espacios urbanos privilegiados los convierten en elementos de interés especulativo y su fin último, ante la falta de protección legal, termina siendo la ruina, el olvido, y la destrucción. El presente trabajo se centra en el análisis, catalogación y difusión del único horno de tipo moruno que ha “sobrevivido” a la demolición de las fábricas y talleres cerámicos que había en el histórico barrio artesanal cerámico de Obradors, en Manises (Valencia). La destrucción injustificada del conjunto de Patri…
Un passo avanti e un passo indietro nell’Antropocene: Rights for Ecosystem Services, comunità locali e REDD
2019
L’autrice del libro When Rights Embrace Responsibilities. Biocultural Rights and Conservation of the Environment risponde ad alcune delle questioni sollevate da Francesco Viola e Gianfrancesco Zanetti nelle loro recensioni, pubblicate in questo numero della rivista. L’autrice si sofferma inoltre su alcuni temi discussi nel libro che richiedono ulteriori approfondimenti e su possibili sviluppi del concetto di diritti bioculturali. The author of the book When Rights Embrace Responsibilities. Biocultural Rights and Conservation of the Environment replies to the comments raised by Francesco Viola and Gianfrancesco Zanetti in the present journal issue. She also dwells on some topics of her book …
Cellular and Subcellular Localization of Peroxidase Isoenzymes in Plants and Cell Suspension Cultures from Lupinus polyphyllus
1989
Abstract , leaf protoplasts and cell suspension cultures of Lupinus polyphyllus and isolated vacuoles were studied for cellular and subcellular localization of peroxidase isoenzymes. Isoelectric focusing revealed 16 peroxidase isoenzymes. The basic peroxidase isoenzymes are predominantly localized in the vacuole and, to a minor degree, unbound in the intercellular space. The acidic isoenzymes are cell wall-bound in plants and not detectable in suspension-cultured cells. Large amounts (up to 11.0 U/ml) of a single basic isoenzyme are detectable in the spent medium of cell suspension cultures.
Vier Dekaden Weberknechtforschung mit dem 64. Band der ‚Tierwelt Deutschlands‘ – Rückblick, aktueller Stand und Ausblick
2021
A short history of the Opiliones volume in ‘Die Tierwelt Deutschlands’ published by Martens (1978) is presented. The area under consideration comprises Central Europe expanded by large parts of Scandinavia, the British Isles, non-Mediterranean France, Benelux, the complete Alps and in the south-east those parts of Romania and Croatia whose fauna was sufficiently well known. Additions and changes which appeared since 1978 are highlighted: new species discovered in this area, taxonomic changes, important distributional records, as well as changes of faunal composition due to human-mediated influences and climate change are addressed. Perspectives for further research concern faunal inventory …
A prospective observational study on oral administration of Ellagic Acid and Annona Muricata in patients affected by non-muscle invasive bladder canc…
2021
Introduction: BCG and MMC shortage and Covid-19 pandemic, more recently, limit accessibility to maintenance regimen in intravesical prophylaxis against recurrence of non-muscle invasive bladder cancer (NMIBC). Ellagic acid (EA) and Annona muricata (AM) exert antitumor activity against different human tumours. An observational prospective study on the prophylactic effect of oral administration of EA+AM in patients avoiding maintenance regimen is presented. Materials and methods: Patients affected by NMIBC and not undergoing maintenance after a 6-week course of intravesical prophylaxis with MMC or BCG were entered. Tis and very high-risk tumours were excluded. After informed consent, the pati…