57 research outputs found
Street art in urbe. Arte urbana nelle periferie romane
Rome in the past was the undisputed cradle of the arts, the imperative destination of the eighteenth-century grand tourists for its constant combination of old and new, humble and magnificent, forgotten and alive that made it unique in its picturesque being, as the Englishmen called it. Recently, Rome is playing once again that key role in the 21st century world. The scenario is mostly regarding the Roman suburbs, borderline not only geographically, but also culturally and socially, where external ugliness is often due to an original lack of aesthetic design or frequently subjects to carelessness and degradation. On this type of urban contest many street artists are involved with their works, directly in contact with the territory and its inhabitants. In this essay the focus is on the connection born from the involvement of artists and citizens, which leads to a legal, programmatic and connected artistic production. So, Art becomes a means of communication in places that are often voiceless and, at the same time, it always performs its function: trough the Beauty, Art re-qualifies and educates and in the meantime interacts with the various components of society, stimulating knowledge and civic sense of common good
Combination of Annealing Particle Filter and Belief Propagation for 3D Upper Body Tracking
3D upper body pose estimation is a topic greatly studied by the computer vision society because it is useful in a great number of applications, mainly for human robots interactions including communications with companion robots. However there is a challenging problem: the complexity of classical algorithms that increases exponentially with the dimension of the vectors’ state becomes too difficult to handle. To tackle this problem, we propose a new approach that combines several annealing particle filters defined independently for each limb and belief propagation method to add geometrical constraints between individual filters. Experimental results on a real human gestures sequence will show that this combined approach leads to reliable results
Annotating Sign Language using a dedicated glyph System
International audienc
Black soldier fly larvae used for environmental enrichment purposes: Can they affect the growth, slaughter performance, and blood chemistry of medium-growing chickens?
IntroductionThis research has been aimed at evaluating the effects of live black soldier fly larvae (BSFL) (Hermetia illucens) on the growth, slaughtering performance, and blood parameters of medium-growing chickens.MethodsA total of 240, 28-day-old, Label Rouge Naked Neck chickens were allotted to four experimental groups, according to the gender (males-females) and to the absence (control group, C) or presence (larvae group, L) of a dietary supplementation with 10% live BSFL, on the basis of the expected average daily feed intake (ADFI) (6 replicates/diet, 10 chickens/replicate). The birds were weighed weekly, and the feed consumption was recorded to calculate the average live weight, feed conversion ratio (FCR), average daily gain (ADG), and the ADFI. At 82 days of age, 2 birds/replicate (12 birds/diet) were selected and slaughtered. The blood samples were collected, and the carcass traits (carcass, breast, thigh, and organ weights and yields) were assessed.Results and discussionsOverall, the administered live BSFL did not impair the growth and slaughtering performance, or the blood traits, while the C females showed a better FCR than the treated ones (P < 0.05). The live BSFL consumption time was longer for the females than for the males (P < 0.001). The weight of the immune organs (spleen and bursa of Fabricius) increased as the live BSFL supplementation increased (P < 0.05). Furthermore, the provision of live BSFL reduced the gamma glutamyl transferase (GGT, U/l) activity content in the blood (P < 0.05). Finally, both the leukocytes (%) and the monocytes (%) were more abundant in the C groups than in the larvae ones (P < 0.05 and P < 0.01, respectively). In short, the supplementation of live BSFL can be used successfully as an environmental enrichment, without affecting the growth performance of male birds. Furthermore, the immune organ activity could be enhanced by the provision of live BSFL
Black Soldier Fly live larvae as environmental enrichment in medium-growing chicken diet
Introduction. Few studies on the effects of live larvae provision in poultry have been previously
conducted [1,2,3]. However, trials on the long-term provision of live larvae in chicken reared for
meat consumption have never been performed before. This study evaluated the impact of Black
Soldier Fly (BSF) live larvae provision on growth performance and larvae consumption behavior of
intermediate-growing strains.
Material and methods. A total of 240 Label naked neck birds were reared from 21 to 82 days of
age, and four experimental groups (10 birds/pen, 6 replicates/treatment) were considered
according to the birds’ gender and larvae provision. Experimental groups were fed 10%
supplementation of BSF live larvae based on the daily feed intake. The live weight (LW), feed
conversion ratio (FCR), average daily feed intake (ADFI) and average daily gain (ADG) were
evaluated considering two periods: 21-35d and 35-82d. The larvae were provided daily and
consumption times were analyzed considering periods of 10 days (5 time frame-T1,T2,T3,T4,T5).
Data were analyzed by means of a GLMM (SPSS software, P<0.05).
Results. The larvae groups displayed a lower ADFI than the control groups regardless the birds’
gender at 21-35d (P=0.01). This could be explained by the larvae nutritional contribution that led to
a lower feed consumption in the experimental groups. Moreover, treated birds revealed a lower
FCR than control groups (21-35d; P<0.001). Otherwise, only treated males performed a better
FCR than control groups during the second period (P<0.01).
Overall, time of larvae consumption at T1 and T5was respectively higher and lower than the other
considered periods in both sexes (P<0.05). Such differences could be related to a progressive
birds’ adaptation to larvae consumption. Significant differences between sexes were recorded only
at T5, when females employed much time than males in larvae consumption (P<0.05).
Conclusion. Live larvae provision ameliorated both the ADFI and FCR. Furthermore, the time of
larvae consumption shrinked as birds became older.
References.
[1] Star L. et al. (2020). Animals. 10,216.
[2] Bellezza Oddon et al. (2021). J. Anim. Physiol. Anim. 00,1–9.
[3] Veldkamp T. and T.G.C.M. Van Niekerk (2019). J. Insects as Food Feed. 5,301-31
- …