Search results for "PLIF"
showing 10 items of 835 documents
Validation and application of a PCR primer set to quantify fungal communities in the soil environment by real-time quantitative PCR
2011
Fungi constitute an important group in soil biological diversity and functioning. However, characterization and knowledge of fungal communities is hampered because few primer sets are available to quantify fungal abundance by real-time quantitative PCR (real-time Q-PCR). The aim in this study was to quantify fungal abundance in soils by incorporating, into a real-time Q-PCR using the SYBRGreen (R) method, a primer set already used to study the genetic structure of soil fungal communities. To satisfy the real-time Q-PCR requirements to enhance the accuracy and reproducibility of the detection technique, this study focused on the 18S rRNA gene conserved regions. These regions are little affec…
Beach ridges from the Varanger Peninsula (Arctic Norwegian coast): Characteristics and significance
2009
The most common coastal sedimentary forms on the arctic coast of the Varanger Peninsula are raised beach ridge plains. The majority of the ridges consist of coarse material, but there are also sandy beach ridge areas close to the river mouths of some of the major rivers. Some bays having the same isostatic rebound and dynamic conditions have been studied to test if the number of beach ridges in each locality is significant to prove climatic changes, storminess, and rates of sediment accumulation, or if the number of beach ridges in each bay is only dependent on their intrinsic characteristics and self organization. Because the number of ridges varies not only from bay to bay, but even withi…
Badlands in the Tabernas Basin, Betic Chain
2014
The complex badland landscape at Tabernas results from a combination of relief amplitude generated by tectonic uplift since the Pliocene and reactivated several times during the Pleistocene, the properties of the Tortonian sedimentary rocks and a predominantly arid climate. The landscape is dominated by deep incision of the main river systems, which continues in part of the headwater tributaries, and characterized by contrasting slope morphologies and a variety of microecosystems. The Tabernas badlands exhibit a diversity of landforms resulting from the combination of multi-age soil surface components that allow a variety of processes to operate at different rates. These are dominated by ri…
Vertical movements in NE Sicily and its offshore: Outcome of tectonic uplift during the last 125 ky
2013
New data in the coastal area between Acquedolci and Patti (northeastern Sicily, Italy) have been collected to calculate vertical tectonic rates in a key sector between the Kabilian-Calabrian and the Sicilian-Maghrebian chain. The comparison among marine geology data (multibeam and seismic reflection profiles) on the continental shelf-slope system and the radiocarbon ages on geomorphological markers collected during a coastal survey, provided new stratigraphic, geomorphological and biological data, contributing to the knowledge of the geological evolution of this sector for the last 125 ky.This coastal area is framed between two main structural features active during the Pleistocene in north…
Ledājkušanas ūdeņu baseini Ziemeļlatvijas un Vidusgaujas zemienēs Vēlā Vislas leduslaikmeta beigu posmā
2014
Disertācijā aplūkoti ledājkušanas ūdeņu baseini, kuri eksistēja Ziemeļvidzemes un Vidusgaujas zemienēs vēlā Vislas leduslaikmeta deglaciācijas laikā. Pirmo reizi Latvijā iekšzemes ledājkušanas baseinu rekonstruēšanā ir ņemta vērā Zemes virsmas šķietamā pacelšanās, kā arī pašas rekonstrukcijas ir veiktas ĢIS vidē ar modelēšanas rīku palīdzību. Darbā ir veiktas Vidusgaujas, Smiltenes un Strenču ledāja sprostezeru rekonstrukcijas ūdens līmeņu kritumam no 125 līdz 46 m v.j.l., kuras parāda minēto sprostezeru izplatību, dziļumu, ūdens pieteces un noteces vietas, attīstību laikā un saistību ar citām tālaika ūdenstilpēm. Baseinus veidojošo un tiem sekojošo eolo procesu nogulumu datējumi ar OSL met…
Investigation of photoluminescence and amplified spontaneous emission properties of cyanoacetic acid derivative (KTB) in PVK amorphous thin films
2018
This work was supported by European Regional Development Fund within the Project No. 1.1.1.1/16/A/046 and A.Riekstins SIA “Mikrotīkls” donation, administered by University of Latvia Foundation.
Secuencias ponderadoras de identificación con como en textos literarios y periodísticos cubanos (2000-2008)
2013
La presente investigación analiza, a partir de textos cubanos actuales, un tipo de construcciones que proponemos denominar «secuencias ponderadoras de identificación con como». Se explica su funcionamiento en calidad de construcción lingüística peculiar mediante la descripción e interpretación de sus características morfosintácticas y semánticas. By examining current Cuban texts, this study analyzes a type of constructions which are proposed to be denominated 'emphatic sequences of identification with como'. It tries to explain these sequences as a peculiar linguistic construction by means of the description and interpretation of their morphosyntactic and semantic characteristics.
Synthetic approach to the design of wide-band microwave injection-locked amplifiers
2010
In this work, a synthesis-based approach to the realization of wide-band microwave injection-locked amplifiers (ILA) is proposed. To this purpose, a transmission-type topology is combined with a feedback structure in which the "core ILA" is intentionally separated from the output (power) amplifier. A modular, matched, design of individual building blocks of the core ILA is then adopted, which allows their first-approximation exact modeling in the dynamical complex-envelope domain, following the theory earlier developed by Calandra-Sommariva. On this basis, analytic expressions for the main operating characteristics of the ILA (such as the locking bandwidth under small signal operation) are …
Approach to the Design of Transmission-Type Injection-Locked Microwave Oscillators through Behavioral Block Modeling
2010
In this work, an attempt is made toward the development of a systematic design method for the performance- driven dimensioning of the various elements comprising the structure of modern transistor-based microwave injection- locked oscillators with transmission-type topologies (TILOs). The proposed approach is based on the use of appropriate diakoptics of the various circuit blocks into a matched environment, and their behavioral modeling in the fundamental- frequency dynamical complex envelope domain with the help of standard circuit and E.M. simulation CAD tools. This will permit, in the end, to obtain closed-form expressions for the main TILO performances in terms of the design parameters…
Innovation in the regeneration of the histric center in Sicily: Barcellona Pozzo di Gotto (ME)
2012
Abstract The criteria for intervention on the existing building heritage in the historic centers cannot be pursued without taking into consideration the renovation of the whole relevant urban territory. This does not imply an idea to postpone to future planning, rather to increase the topics in the General Urban Plan (PUG), by bringing into the PUG the elements of the traditional detailed plans for the historic areas with a methodology simplification. The detailed planning has been characterized in the years as “exemplary”, possibly due to the complexity of its project contents and rules and regulations, particularly in the historic areas. Indeed in Italy detailed plans for historic areas a…