Search results for "Aves"

Demonstration of a correlation between young leaves, apex and young bunches specific to a young grapevine cutting in the first period of its developm…

2001

<p style="text-align: justify;">The development of hardwood cutting of grapevine comprise 4 succesive phases. Phase I: first period of shoot extension. Phase II: characterized by a slow growth due to a very low activity of the terminal bud. Phase III: reactivation of the growth consecutive to a resumption of the apical activity. Phase IV: when the growth becomes maximal.</p><p style="text-align: justify;">The objective of this work has been to identify the cause of the slowdown of the activity of apical bud during the phase II.</p><p style="text-align: justify;">In a first experiment, we have compared the effects of three modes of defoliation applied from the b…

Searching for signatures around 1920 MeV of a N-* state of three hadron nature

2009

We provide a series of arguments which support the idea that the peak seen in the gamma p -> K+ Lambda reaction around 1920 MeV should correspond to the recently predicted state of J(P) = 1/2(+) as a bound state of K(K) over bar N with a mixture of alpha(0)(980)N and f(0)(980)N components. At the same time we propose polarization experiments in that reaction as a further test of the prediction, as well as a study of the total cross-section for gamma p -> K(+)K(-)p at energies close to threshold and of d sigma/dM(inv) for invariant masses close to the two-kaon threshold.

Contribution of observed multi frequency spectrum of Alfvén waves to coronal heating

2019

Context. Whilst there are observational indications that transverse magnetohydrodynamic (MHD) waves carry enough energy to maintain the thermal structure of the solar corona, it is not clear whether such energy can be efficiently and effectively converted into heating. Phase-mixing of Alfvén waves is considered a candidate mechanism, as it can develop transverse gradient where magnetic energy can be converted into thermal energy. However, phase-mixing is a process that crucially depends on the amplitude and period of the transverse oscillations, and only recently have we obtained a complete measurement of the power spectrum for transverse oscillations in the corona. Aims. We aim to investig…

Elementi di grammatica dell'iraniano antico (avestico e antico persiano)

2016

Sotto la denominazione di ‘iranico antico’ vengono nel testo indicate due antiche lingue iraniche: l’avestico e l’antico persiano, che costituiscono due delle lingue indo-europee di più antica attestazione. Le lingue iraniche sono tradizionalmente classificate in orientali e occidentali. All’ interno di questo schema, l’avestico è considerato una lingua iranica orientale. Questa distinzione, tuttavia, è troppo limitativa per l’avestico perché, all ’epoca in cui questo era parlato, gli sviluppi linguistici che più tardi distingueranno le lingue iraniche occidentali da quelle orientali non erano ancora avvenuti. Certo, l'avestico non è sicuramente l’antico persiano: in questo senso, ‘oriental…

Naimisen normit, käytännöt ja konfliktit : esiaviollinen ja aviollinen seksuaalisuus 1800-luvun lopun keskisuomalaisella maaseudulla

2010

Les espaces funéraires laténien et augusto-tibérien des Reliades (Le Puy-en-Velay, Haute-Loire).

2022

Le site des Reliades au Puy-en-Velay (Haute-Loire) a livré deux petits espaces funéraires à crémation utilisés entre La Tène finale et l’époque augusto-tibérienne. Caractérisés par une implantation sur un lieu à la topographie remarquable, ils ont fait l’objet d’aménagements paysagers qui viennent souligner leur caractère ostentatoire. Par ailleurs, la présence de bassins pose la question de l’utilisation de l’eau dans le cadre de cérémonies funéraires et/ou commémoratives. Enfin, bien que le mobilier déposé dans les sépultures soit peu abondant et très détérioré par son passage sur le bûcher, quelques éléments permettent d’attribuer aux défunts un statut social relativement élevé. Il s’agi…

Search for intermediate mass black hole binaries in the first and second observing runs of the Advanced LIGO and Virgo network

2019

Gravitational wave astronomy has been firmly established with the detection of gravitational waves from the merger of ten stellar mass binary black holes and a neutron star binary. This paper reports on the all-sky search for gravitational waves from intermediate mass black hole binaries in the first and second observing runs of the Advanced LIGO and Virgo network. The search uses three independent algorithms: two based on matched filtering of the data with waveform templates of gravitational wave signals from compact binaries, and a third, model-independent algorithm that employs no signal model for the incoming signal. No intermediate mass black hole binary event was detected in this sear…

All-sky search in early O3 LIGO data for continuous gravitational-wave signals from unknown neutron stars in binary systems

2021

Rapidly spinning neutron stars are promising sources of continuous gravitational waves. Detecting such a signal would allow probing of the physical properties of matter under extreme conditions. A significant fraction of the known pulsar population belongs to binary systems. Searching for unknown neutron stars in binary systems requires specialized algorithms to address unknown orbital frequency modulations. We present a search for continuous gravitational waves emitted by neutron stars in binary systems in early data from the third observing run of the Advanced LIGO and Advanced Virgo detectors using the semicoherent, GPU-accelerated, binaryskyhough pipeline. The search analyzes the most s…

Thilachium madagascariense (Capparaceae), a new species from eastern Madagascar with a key to the species of the genus

2021

SummaryThilachium madagascariense Fici, a small tree characterised by 1-foliolate leaves with articulate petioles, leaf blades elliptic or narrowly obovate with base attenuate and apex acuminate, flowers in groups of 2 – 3 at the top of lateral twigs and a high number of stamens, is described and illustrated from forest habitats of eastern Madagascar. The new species is similar to T. laurifolium Baker, a species endemic to central and eastern Madagascar, differing in the longer leaves with acuminate apex, flowers conferted at the top of lateral twigs, shorter pedicels, higher number of stamens and shorter gynophore. Its affinities are discussed and an updated key is provided for all the spe…

Stability and extraction of bioactive sulfur compounds from Allium genus processed by traditional and innovative technologies

2017

Abstract Since ancient times, species from the Allium genus have been used in both culinary and medicinal applications. The health promoting properties, with well documented “evidence-based” studies, were attributed to the genus’ high content of bioactive organosulfur compounds. For these reasons, the organosulfur compounds have attracted interest in both food and pharmaceutical industries to be used as additives or supplements. Therefore, improvement in the extraction and stability during processing and storage of these molecules is crucial. The presented review documents the effects of traditional and innovative processing techniques on the extraction and stability of organosulfur compoun…