196,350 research outputs found
La pesca tabacchiera in Sicilia: opportunità da valorizzare.
No full textUna recente indagine condotta nel territorio etneo dal Dipartimento Demetra dell'Università di Palermo, ha condotto all'individuazione di 7 diverse pesche piatte, raccolte e valutate presso un campo catalogo. Le pesche tabacchiere sono caratterizzate dal sapore dolce e da un profumo ed aroma inconfondibili. L'ampio calendario di maturazione, accentuato dalla conformazione del territorio, gli eccellenti caratteri organolettici e l'elevata richiesta da parte del consumatore, sono i presupposti per creare valide operazioni commerciali
Growth and physiological responses of young olive trees affected by Olive leaf yellowing associated virus
No full textWe studied the effect of Olive leaf yellowing associated virus (OLYaV) on biometric and physiological changes in olive. The trial was carried out on 32 two-yearold virus-free trees of 'Frantoio' grafted on virus-free olive seedlings and grown in 32-L pots. Half of the trees were inoculated with OLYaV in the fall of 2007. At 6, 18, and 24 months after inoculation, tree height, basal trunk diameter and total leaf number were determined, and leaf area tree-1 was estimated from a 50-leaf subsample. Twigs of various order were also counted and measured. At the end of the experiment, dry matter partitioning, leaf gas exchange and water potential were also measured. Total twig length and number, trunk diameter and leaf area were significantly reduced by OLYaV, whereas no effect was detected on tree height. Water potential was lower in virus free trees due to a greater leaf area; gas exchange rates were proportional to water status. Trees affected by OLYaV partitioned more dry matter to roots and less to the main stem compared to virus-free trees. The growth reductions could not be explained by differences in water relations or assimilation, but may relate to the sink's ability to attract and/or use assimilates
Aluminum Hairpin Solution for Electrical Machines in E-Mobility Applications : Part II:Thermal and Cooling Aspects
No full textAssessing Thermal and Efficiency Aspects of Aluminum Hairpin Motors in Passenger Cars
No full textAluminum represents a more sustainable choice than copper in windings of electric machine intended for passenger cars, offering cost and weight advantages at the expenses of higher DC resistance and ensuing losses at low frequency operations, such as in peak condition. However, the overall power loss and efficiency should be evaluated throughout the whole driving cycle of a specific application. This study demonstrates that the overall efficiency of aluminum solutions remains comparable to copper, primarily due to the fact that the most significant contributors to total losses are iron losses at low load and medium speed operations typical of passenger cars. Additionally, this research proves that, despite experiencing higher losses at peak conditions, the maximum winding temperature of the aluminum solution remains within acceptable limits throughout the driving cycle when using the same cooling system as copper. To validate these findings, a comprehensive assessment of the thermal performances of copper and aluminum is conducted using 3D finite element thermal analyses across the entire driving cycle. The analysis adopts a one-way coupled Conjugate Heat Transfer (CHT) approach to accurately evaluate the thermal behavior of both materials under real-world operating conditions
Innate immunity modulates autoimmunity: type 1 interferon-beta treatment in multiple sclerosis promotes growth and function of regulatory invariant natural killer T cells through dendridic cell maturation
No full textType 1 interferon-beta (T1IFN-beta) is an innate cytokine and the first-choice therapy for multiple sclerosis (MS). It is still unclear how T1IFN-beta, whose main function is to promote innate immunity during infections, plays a beneficial role in autoimmune disease. Here we show that T1IFN-beta promoted the expansion and function of invariant natural killer (iNKT) cells, an innate T-cell subset with strong immune regulatory properties that is able to prevent autoimmune disease in pre-clinical models of MS and type 1 diabetes. Specifically, we observed that T1IFN-beta treatment significantly increased the percentages of Valpha24(+) NKT cells in peripheral blood mononuclear cells of MS patients. Furthermore, iNKT cells of T1IFN-beta-treated individuals showed a dramatically improved secretion of cytokines (interleukins 4 and 5 and interferon-gamma) in response to antigenic stimulation compared to iNKT cells isolated from the same patients before T1IFN-beta treatment. The effect of T1IFN-beta on iNKT cells was mediated through the modulation of myeloid dendritic cells (DCs). In fact, DCs modulated in vivo or in vitro by T1IFN-beta were more efficient antigen-presenting cells for iNKT cells. Such a modulatory effect of T1IFN-beta was associated with up-regulation on DCs of key costimulatory molecules for iNKT (i.e. CD80, CD40 and CD1d). Our data identified the iNKT cell/DC pathway as a new target for the immune regulatory effect of T1IFNs in autoimmune diseases and provide a possible mechanism to explain the clinical efficacy of T1IFN-beta in MS
Supplemental Material2 - Supplemental material for Modern technology–derived normative values for cerebral tissue oxygen saturation in adults
No full textSupplemental material, Supplemental Material2 for Modern technology–derived normative values for cerebral tissue oxygen saturation in adults by Christopher T Eyeington, Paolo Ancona, Eduardo A Osawa, Salvatore L Cutuli, Glenn M Eastwood and Rinaldo Bellomo in Anaesthesia and Intensive Care</p
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
Supplemental Material3 - Supplemental material for Modern technology–derived normative values for cerebral tissue oxygen saturation in adults
No full textSupplemental material, Supplemental Material3 for Modern technology–derived normative values for cerebral tissue oxygen saturation in adults by Christopher T Eyeington, Paolo Ancona, Eduardo A Osawa, Salvatore L Cutuli, Glenn M Eastwood and Rinaldo Bellomo in Anaesthesia and Intensive Care</p
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