1,723,676 research outputs found
Natural streamflow and IHAs. Celone River case study
No full textTitle
Natural streamflow and IHA for setting an environmental flow. The Celone River case study
Description
Data reported in the present file refer to the Celone River (Apulia Region, Italy) at the river section downstream of the Capaccio Reservoir (41°26’06’’ N;15°25’51’’ E). Data include the natural streamflow at daily time scale and the Indicators of hydrological alterations (IHAs) computed from 1990 to 2009 by using the IHA software (The Nature Conservancy, 2009. Indicators of Hydrologic Alteration Version 7.1 User's Manual). Non-Parametric analysis was developed. Statistical analysis and flow duration curves are also provided in the file.
The present dataset is useful to set an environmental flow by using hydrological methods and is propaedeutic for hydraulic methods.
Daily streamflow data in natural conditions were obtained by using the SWAT model (De Girolamo et al., 2017). All the hydrological pressures such as point source discharge, water abstractions, and the reservoir were not included in the SWAT simulation (De Girolamo et al., 2017).
The twenty years of daily streamflow data stored in the file were used to calculate the IHAs. As described by Richter et al. (1996), the IHAs are able to describe the hydrological regime of a river and are strictly related to the river ecology. Based on the assumption that the full range of variability of streamflow regime is needed to preserve the river ecosystem (Arthington, 2012; Poff et al., 1997), the environmental flow was designed for the Celone River by Acuña et al., 2020.
References
Acuña V., Jorda-Capdevila D., Vezza P., De Girolamo A.M., McClain M.E., Stubbington R., Pastor A.V., Lamouroux N., von Schiller D., Munné A., Datry T. 2020. Accounting for flow intermittency in environmental flows design. Journal of Applied Ecology, doi: 10.1111/1365-2664.13590
De Girolamo, A.M., Barca, E., Pappagallo, G. & Lo Porto, A. 2017. Simulating ecologically relevant hydrological indicators in a temporary river system. Agricultural Water Management, 180, 194–204.
Arthington, A. (2012) Environmental Flows. Saving Rivers in the Third Millenium. University of California Press, Berkeley, California.
Poff, N.L., Allan, J.D., Bain, M.B., Karr, J.R., Prestegaard, K.L., Richter, B.D., … Stromberg, J.C. (1997) The Natural Flow Regime. BioScience, 47, 769–784
Introduction. Psychiatric epidemiology: the traditions and the challenge
No full textPsychiatric epidemiolog
An efficient method to identify cross-sea states from wave measurements
No full textThis paper is aimed at describing a simple and efficient method to identify cross-sea states from directional wave measurements. The method is based on a new parameter named "Cross-Sea Index" (CSI), which is defined as the difference between two distinct definitions of the overall mean wave direction: the classic one introduced by Longuet-Higgins and the more recent one suggested by De Girolamo. In the following, the theoretical basis of the method is firstly outlined. The influence of the directional spectrum characteristics on the Cross-Sea Index is then discussed. Afterwards, the results of two Monte Carlo simulations are shown. These simulations were aimed at testing the new method and at comparing its outcomes with those of three other existing criteria. Finally, the new method is applied to the directional wave measurements, which were recorded by the Italian Sea Wave monitoring Network (SWaN) during the storm on 26th December 1993. All the achieved results clearly show the efficiency of the herein-proposed method. (C) 2004 Elsevier B.V. All rights reserved
Un recueil d'adversaria autographes de Girolamo Aleandro
No full textDelaruelle Louis. Un recueil d'adversaria autographes de Girolamo Aleandro. In: Mélanges d'archéologie et d'histoire, tome 20, 1900. pp. 3-21
Central regulation of food intake during aging in the teleost fish Nothobranchius furzeri.in Annals of Anatomy-Anatomischer Anzeiger 10.1016/j.aanat.2016.04.020 special issue on Animal Anatomy II, vol 207:123-124 A. Montesano, N. Arcamone,T. Genade,P.de Girolamo
No full text4.2 Central regulation of food intake during aging in the teleost fish Nothobranchius furzeri Montesano A, Arcamone N, Genade T, De Girolamo P The mechanisms deputed to energetic control have been selected by ancestral diets resulting from the nutrient disposal during the evolution. They are regulated by a network of molecules controlling metabolic needs and influence caloric intake. Also the course of aging adds significant modifications to energy homeostasis and fuel metabolism in. An emerging model for aging research, a teleost fish Nothobranchius furzeri, the vertebrate with the shortest lifespan described in laboratory, is employed to investigate the regulation of Neuropeptide Y (NPY) and Orexin A and B in the hypothalamus. The study is carried out on specimens at different age stages and fed with different diets. Immunohistochemical analyses revealed the localization and co-labeling of NPY, Orexins A and B in some hypothalamic areas, as the dorsal hypotalamus (Hd) and diffuse inferiore lobe (DIL). The co-labeled neurons were identified as serotoninergic. In addition, the median lifespan is prolonged of more than one week in subjects treated with hypocaloric diet. In the latter group, western blot analyses revealed high expression of NPY in the brain. These observations suggest that the role of NPY in food intake regulation is modulated during aging and hypocaloric regime, and is linked to the action of Orexin A. Furthermore, the co-presence of NPY and Orexin A in serotoninergic neurons could indicate the involvement of the two peptides also in the circadian rhythm regulation
Potenziale osteogenico in vitro di cellule staminali mesenchimali isolate da tessuto adiposo di coniglio (rbASC, rabbit Adipose-derived Stem Cells) : risorsa futura per la rigenerazione di tessuto osseo in modelli preclinici
No full textNegli ultimi anni il nostro laboratorio si sta interessando alla caratterizzazione e al differenziamento di cellule staminali mesenchimali prelevate da tessuto adiposo umano (ASC, Adipose-derived Stem Cells), al fine di proporre nuovi approcci terapeutici che utilizzano cellule staminali mesenchimali (MSC) nell’ambito dell’ ingegneria tissutale (de Girolamo et al. TERM 2007, IJAO 2008).
In questo studio ci siamo occupati della caratterizzazione e del differenziamento verso la linea osteogenica di ASC prelevate dal tessuto adiposo di coniglio (rbASC) per la creazione di un modello animale di rigenerazione dei tessuti muscolo-scheletrici
Cellule rbASC, isolate da 7 conigli, sono risultate altamente proliferanti e presentano, nei primi passaggi in coltura, una capacità clonogenica intorno al 15%. La loro capacità differenziativa verso la linea osteogenica è stata dimostrata valutando l’incremento, rispetto alle cellule indifferenziate, dell’attività di fosfatasi alcalina, di deposizione di matrice extracellulare calcificata e l’induzione di osteonectina.
Inoltre cellule rbASC, differenziate e non, in presenza di scaffold (idrossiapatite e Orthoss®) sono in grado di produrre livelli di fosfatasi alcalina e di matrice calcificata superiori a quelli prodotti da cellule mantenute su polistirene.
Si può quindi affermare che il tessuto adiposo di coniglio, come precedentemente dimostrato per quello umano, contiene numerose cellule staminali mesenchimali multipotenti che si mantengono facilmente in coltura allo stato indifferenziato e che, in presenza di opportuni stimoli chimici e fisici, differenziano verso cellule della linea osteogenica.
Abbiamo quindi progettato uno studio in vivo in cui cellule rbASC autologhe verranno utilizzate in un modello pre-clinico di difetti ossei in associazione a opportuni supporti
An experiment on harbour resonance induced by incident regular waves and irregular short waves
No full textIt is generally accepted that bound long waves generated by wind waves excite harbour resonance. Nevertheless it is not clear if there are differences in the harbour response when resonance is induced by incident regular free long waves or by incident bound long waves. This experimental investigation aims at determining these differences for a narrow long bay. The finite water depth inside and outside the narrow bay is constant. For incident bound long waves, two cases have been studied: in the first case bound long waves are generated by carrier bichromatic short waves which form regular wave groups; in the second case bound long waves are generated by irregular short waves. The experimental setup allows the characteristics of the forcing waves to be defined with a good degree of accuracy. The bay response is obtained for the three cases of regular free long waves and bound long waves for regular and irregular groups
Annotated bibliography of psychiatric epidemiology
No full text(from the cover) A number of the world's experts in psychiatric epidemiology were asked by the World Health Organization to compile a list of the outstanding publications in the field. That list formed the basis of this bibliography, although it has been updated and expanded, and author and subject indexes added. There are over 200 entries with summaries and comment, in what comprises an overview of what is known of the subject today. ((c) 1997 APA/PsycINFO, all rights reserved
- …
