Search results for "AMA"

La ecología del mirlo Turdus merula en los naranjales: un estudio a largo plazo

2015

Se estudiaron algunos aspectos demográficos y de la biología reproductiva del mirlo común Turdus merula en una superficie de 17 ha dedicada al cultivo del naranjo en la localidad valenciana de Sagunto. Mediante la aplicación mixta de la técnica de la parcela y de la búsqueda de nidos se calculó el número de parejas nidificantes desde 1975 hasta 2015 y se obtuvo información sobre el tamaño de la puesta, el éxito reproductor y las causas del fracaso de los nidos. El programa de anillamiento llevado a cabo en cuatro sesiones anuales desde el año 2000 hasta 2009 proporcionó información sobre la filopatria natal, la proporción de sexos y la supervivencia de los adultos. La variación estacional d…

Engineered surface waves in hyperbolic metamaterials

2013

We analyzed surface-wave propagation that takes place at the boundary between a semi-infinite dielectric and a multilayered metamaterial, the latter with indefinite permittivity and cut normally to the layers. Known hyperbolization of the dispersion curve is discussed within distinct spectral regimes, including the role of the surrounding material. Hybridization of surface waves enable tighter confinement near the interface in comparison with pure-TM surface-plasmon polaritons. We demonstrate that the effective-medium approach deviates severely in practical implementations. By using the finite-element method, we predict the existence of long-range oblique surface waves. This research was fu…

Surogācija un tās tiesiskais regulējums

2017

Bakalaura darba tēma ir “Surogācija un tās tiesiskais regulējums”. Tēma ir aktuāla, jo pēdējā laikā īpaši ir saasinājušās problēmas saistībā ar cilvēka reproduktīvām tiesībām. Neapšaubāmi, cilvēku radīšana mēģenēs un jebkādi eksperimenti ar cilvēka ģenētisko materiālu pārvērš bērnus par sava veida preci, radot situāciju, kad bagātie cilvēki varētu nolīgt sievietes pēcnācēju iznēsāšanai, izmantojot, piemēram, sievietes grūto materiālo stāvokli. Maternitāte šajā gadījumā kļūst par līguma darbu, kurā, kā jebkurā biznesā, prevalē personīgs labums, kas nozīmē ka surogācija ir tirgus, bizness, komercija. Tajā pašā laikā ļoti daudziem cilvēkiem surogācijas pakalpojumi ir vienīgā iespēja iegūt bērn…

Drama - die Tür in neue Welten im Sprachunterricht : Mit dem Drama die Mündliche Sprachfähigkeit üben und bewerten

2010

Nykypäivän globalisoituneessa yhteiskunnassa kyky pystyä kommunikoimaan vieraalla kielellä on yhä tärkeämpää. Kieltä ei opita puhumaan täyttämällä mekaanisia aukkotehtäviä vaan käyttämällä kieltä. Uusien tehtävätyyppien jatkuva kehittäminen on todella tärkeää. Tämä pro gradu-tutkielma esittelee yhden tavan harjoittaa suullista kielitaitoa. Tarkoituksena oli tutkia, miten draama soveltuu suullisen kielitaidon harjoittamiseen ja miten draaman avulla voidaan sitä testata. Tutkimus kohdistettiin yläkoulun saksan opetukseen. Kielenopetuksen tavoitteena pitäisi olla kommunikatiivinen kompetenssi. Draama tarjoaa yhden tavan viedä opetusta kommunikatiivisempaan suuntaan. Draamapedagogiikka on kokon…

Lotta alla mosca delle olive in olivicoltura integrata e biologica

2012

Bactrocera oleae, fitofago chiave dell’agroecosistema olivo, è presente in Italia in tutti gli areali interessati dalla coltura, tranne in alcune aree caratterizzate da maggiore altitudine dove il fattore termico non consente lo sviluppo della specie. Il dittero è fortemente legato alle temperature che del resto condizionano anche la fenologia dell’olivo; in effetti il numero di generazioni che la mosca può completare nell’anno varia da 1 fino a 4-5 in zone con temperature medie annue elevate (zone costiere e/o meridionali). La pericolosità della specie è pertanto legata al numero di generazioni e all’andamento climatico che, a seconda dell’annata e della zona, possono variare sensibilmente…

Vibrational Spectroscopy

2015

The molecular information provided by the vibrational spectra obtained by both absorption in the near-infrared and middle-infrared range and Raman dispersion has been critically evaluated to obtain specific information for the authentication of protected designation of origin foods and other food geographical indications. The literature in this field has been updated and the capability of the vibrational spectra to provide discrimination between foods produced in different areas and by using different processes are also discussed.

Rotational collisional line broadening at high temperatures in the N2 fundamental Q-branch studied with stimulated Raman spectroscopy

1986

Self broadened N 2 Q-branch spectra are measured by high resolution stimulated Raman spectroscopy in the pressure region 0.25-1.9 atm. and in the temperature range 295-1310 K. Non additivity of the Q(J) components due to line overlap arising in the highest pressure range explored is carefully taken into account. Excellent fit of the whole spectra is thus obtained for each pressure with linearly density-dependent line widths. Semi-classical calculations of the line-broadening coefficients lead to consistent values with all the measured ones. These calculations are extended to higher J values and to higher temperatures (up to 2500 K). At last, a simple phenomenological model based on a polyno…

Spontaneous Raman Scattering Spectrum of Gaseous IrF6 in the Ground Electronic State

1996

Stimulated Raman spectroscopy as the essential tool for studying collisional effects : application to combustion

1994

No abstract available

Collisional Relaxation Processes Studied by Coherent Raman Spectroscopy for Major Species Present in Combustions

1992

The effects of collisional relaxation processes on the Q-branch profile of major species present in combustions have been studied by high resolution stimulated Raman spectroscopy. Particular interest has focused on the following collisional systems: N2-N2, O2-O2, CO2-CO2, O2-N2, N2-CO2 and N2-H2O. For each colliding pair, starting from accurate determinations of line broadening coefficients over a wide temperature range, state-to-state rates for rotational energy transfers have been deduced by using various fitting laws. Among these rate laws, special attention has been paid to the temperature dependence of the energy corrected scaling (ECS) law combined with a hybrid exponential-power law …