Search results for " Gene"
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Dynamics of a harmonic oscillator coupled with a Glauber amplifier
2020
A system of a quantum harmonic oscillator bi-linearly coupled with a Glauber amplifier is analysed considering a time-dependent Hamiltonian model. The Hilbert space of this system may be exactly subdivided into invariant finite dimensional subspaces. Resorting to the Jordan-Schwinger map, the dynamical problem within each invariant subspace may be traced back to an effective SU(2) Hamiltonian model expressed in terms of spin variables only. This circumstance allows to analytically solve the dynamical problem and thus to study the exact dynamics of the oscillator-amplifier system under specific time-dependent scenarios. Peculiar physical effects are brought to light by comparing the dynamics…
Postharvest quality and sensory attributes of organically grown Ficus carica L.
2021
This study evaluates some physical and chemical characteristics and sensory descriptors of fig fruit cultivars ‘Petrelli’ and ‘Fico di Terlizzi’, belonging to the national germplasm bank of fig trees and cultivated in Southern Italy. For the sensory evaluation of external appearance, the descriptors skin color, pulp color, odor, sweetness, stickiness, bitterness, juiciness, firmness, tannic taste and presence of achenes were measured. Results showed that fresh weight, total soluble solids (TSS), titratable acidity (TA), TSS:TA, firmness, and sensory properties were different for the two cultivars. SSC was more correlated with sensory attributes than TA, but other factors were also important…
The “genetic erosion” of the soil ecosystem
2013
Abstract This paper takes into consideration the influence of human activities on the loss of pedodiversity in a Mediterranean area due to large scale farming. In particular it examines the quantitative and qualitative soil changes in a period of 53 years (from 1955 to 2008) evaluating the loss of soil diversity at soil subgroups level of the USDA Soil Taxonomy system. The following indices were used: richness; Shannon’s diversity index; Simpson diversity index; Shannon’s evenness index; Simpson’s evenness index. In this case study, considering what we observed in time, the human intervention in soil transformation could increase the diversity in the landscape in an initial phase, but forwa…
Ēmer-eniauto-genea-chorographias nucleus, insigni lectionis variae fructu locuples. Historiae cùm
Chronological compendium of universal sacred and profane history, with calendars, list of popes and Roman emperors, genealogical tables and a small atlas of Europe with 15 maps.