Modellazione in continuo dell’umidità del suolo e dell’evapotraspirazione effettiva mediante l’uso di un modello accoppiato energetico/idrologico

Gender-related effects on emotionality, learning and memory performance in adult rats

Assessing HYDRUS-2D model to simulate water content and salt accumulation in a soil irrigated with a subsurface drip system: Application in a semiarid area of central Tunisia

In this paper, the suitability of HYDRUS-2D model to predict the average soil water content in the root zone of potato crop irrigated with subsurface drip irrigation plant, is initially assessed on the basis of a field study. Then, the model is tested to predict the salt distribution around a buried emitter, when two different water qualities (i.e. electrical conductivity of 1.0 dS m-1 and 4.0 dS m-1), are used during the growing season (treatments T1 and T2). Finally, the soil volume in which salts accumulates, as well as the effects on crop yield is recognized for both the considered treatments.The results evidenced that predicted values of average soil water content in the root zone were…

GERM CELL TUMOURS IN CHILDREN- A Report of 84 Cases

In January 1991 a Protocol for diagnosis and treatment of Germ Cell Tumours (GCT) in children was activated in 15 Italian Paediatric Centres.

USO DELLA TECNICA SCINTILLOMETRICA A SUPPORTO DELLA STIMA DEI CONSUMI EVAPOTRASPIRATIVI DELL’OLIVO

L’uso razionale della risorsa idrica in agricoltura richiede, unitamente all’adozione di tecniche irrigue avanzate che assicurino la migliore efficienza degli interventi irrigui, l’individuazione dei tempi e dell’entità dei singoli interventi. Perché questi ultimi obiettivi siano raggiunti è necessario stimare con precisione i consumi di evapotraspirazione delle colture che, nell’ambiente mediterraneo, caratterizzato da un periodo vegetativo tipicamente non in fase con quello piovoso, si manifestano sotto condizioni di stress idrico. Nel presente lavoro è descritta un’applicazione a una piantagione di oliveto della tecnica scintillometrica, che permette una stima indiretta del flusso di cal…

Analisi delle relazioni tra indici di stato idrico e firme spettrali in piante adulte di olivo (Olea europea L.)

TUMORI A CELLULE GERMINALI IN ETA' PEDIATRICA. RISULTATI DEL PROTOCOLLO AIEOP "TG-91".

Gli Autori riportano i risultati del Protocollo AIEOP-91 presentando igli 88 casi registrati in 15 Centro AIEOP dal gGennaio 1991 al Dicembre 193

Assessing actual evapotranspiration in irrigation districts using Landsat TM images and SEBAL model: Potential uses for irrigation monitoring

Satellite imagery allows the observation of large land stretches and the acquisition of worthwhile information that can be used efficaciously in agro-hydrologic systems. On the other hand, remotely sensed data coupled with energy balance models represent reliable tools to estimate actual evapotranspiration (ET). Objective of the research was to propose a methodology to estimate ET by using Landsat TM images and surface energy balance, thus allowing the monitoring of current irrigation practices and/or possible vegetation stress. The proposed methodology was applied in an irrigation district managed by “Consorzio di Bonifica Agrigento 3”, Castelvetrano, Sicily (Italy), in which water is dist…

Assessment of actual transpiration rate in olive tree field combining sap-flow, leaf area index and scintillometer measurements

TESTING APPROACH TO ESTIMATE HOURLY REFERENCE EVAPOTRANSPIRATION WITH SCINTILLOMETER MEASUREMENTS UNDER MEDITERRANEAN CLIMATE

Potential of thermal images and simulation models to assess water and salt stress: Application to potato crop in central Tunisia

The growing water scarcity is a real concern in Mediterranean countries characterized by semi-arid or arid climate such as Tunisia, where it is crucial to improve water use efficiency without affecting agricultural productivity. The importance of identifying methods and technologies to optimize water use in agriculture has been recognized worldwide, in response to the limited water availability. Objective of the paper was to verify the potential of the combined use of infrared thermography and simulation models to assess the effects of water and salt stress on potato crop parameters and crop yield, under the environmental conditions of central Tunisia. The database collected with field expe…

GERM CELL TUMOURS: A Report of 72 Cases

The Authours report a prospective Study of the diagnosis and treatment of Germ Cell Tumours in children since January 1991.

I TUMORI A CELLULE GERMINALI IN ETA' PEDIATRICA

Gli Autori presentano il progetto del Protocollo Nazionale di disgnosi e cura dei Tumori a Cellule germinali (TCG) con gli obiettivi di costituire una casistica nazionale, approfondire la storia naturale dei TCG, promuovere un trattametno uniforme nazionale. vengono presentati i primi dati.

UNA CHIRURGIA CONSERVATIVA DEI TUMORI BENIGNI DEL TESTICOLO IN ETA' PEDIATRICA? Analisi dei Risultati di una Casistica Multicentrica Retrospettiva (1977-1987)

La Terapia Chirurgica dei tumori benigni del testicolo si basa sulla orchiectomia radicale inguinale. Tale criterio è stato messo in discussioneda alcuni Autori e per tale motivo sono stati valutati i risultati di una casistica nazionale multicentrica retrospettiva di 10 anni allo scopo di valutare la possibilità di una exeresi radicale conservativa di queste neoplasie

Chronic Lupus Peritonitis Responsive to Treatment with Cyclophosphamide

Assessing AQUACROP water stress function to evaluate the transpiration reductions of olive tree.

Quantitative evaluation of the drought adaptation processes of crops is an important prerequisite for efficient irrigation management. Modeling the plant response under water stress conditions is crucial to identify the exact irrigation timing. Assessment of any water stress function requires the knowledge of its shape and then the estimation of critical thresholds of the soil water status, below which a strong reduction of plant transpiration occurs. In this work, the macroscopic approach is used to assess the water stress function implemented in AQUACROP for mature olive tree. In particular, after discussing about the function shape, the critical thresholds of soil water status are propos…

Sviluppi recenti e nuove tecnologie per la stima dei fabbisogni irrigui in ambiente mediterraneo

DINAMICA DEI FLUSSI EVAPOTRASPIRATIVI IN SISTEMI ARBOREI ETEROGENEI

ASSESSING FAO-56 MODEL TO ESTIMATE TABLE OLIVE WATER CONSUME UNDER SOIL WATER DEFICIT CONDITIONS

Agro-hydrological models can be considered an economic and simple tool to quantify crop water requirements. In the last two decades, agro-hydrological physically based models have been developed to simulate mass and energy exchange processes in the soil-plant-atmosphere system. Although very reliable, due to the high number of required variables, simplified models have been proposed as simple tools to quantify crop water consumes. The main aim of the paper is to assess, for a Sicilian orchard of table olive, the suitability of FAO-56 agro-hydrological model to estimate the crop transpiration under soil water deficit conditions. The model validation is carried out by means of measurements of…

Discussion of “Laboratory and field calibration of the Diviner 2000 probe in two types of soil” by J. Haberland, PhD, R. Galvez, C. Kremer, PhD, and C. Carter.

The authors deal with the quite interesting and actual problem of Diviner 2000 capacitance probe calibration and present some field and laboratory data obtained on two different layers (0-0.26 cm and 0.26-0.50 cm) of the same soil profile, characterized by different textural class. The importance of site-specific calibration of sensors used to monitor soil or plant water status assumes a particular relevance in semi-arid environments where the application of precision irrigation represents an appropriate management strategy aimed to achieve high values of water use efficiency (Cammalleri et al., 2013). Moreover in clay soils, physical properties are strongly influenced by soil water content…

Assessment of a calibration procedure to estimate soil water content with Sentek Diviner 2000 capacitance probe

Leukemic ophthalmopathy: a report of 21 pediatric cases.

A multicentric retrospective study on leukemic ophthalmopathy (LO) is reported. It includes 21 patients, 16 males and 5 females, with acute leukemia (AL) observed in 10 SIOP centers. LO developed in three patients at the time of diagnosis of AL; five patients were in first complete remission (three off therapy); four patients were in second or third remission; and nine were in combined relapse. Most frequent symptoms were blurred vision, photophobia, and ocular pain. Two patients with acute nonlymphoblastic leukemia died before treatment; another underwent bone marrow transplantation; one patient with B-cell acute lymphoblastic leukemia (B-ALL) treated with chemotherapy and radiotherapy die…