701 research outputs found
Amblyomma romitii Tonelli Rondelli 1939
No full text108. Amblyomma romitii Tonelli Rondelli, 1939. A Neotropical species whose adults and nymphs have been found on Rodentia: Caviidae; adult ticks alone have been recovered from Didelphimorphia: Didelphidae. Amblyomma romitii is a rare parasite of humans. M: Tonelli Rondelli (1939) F: Tonelli Rondelli (1939) N: Tonelli Rondelli (1939) L: Barros-Battesti et al. (2012) Redescriptions M: Floch and Abonnenc (1940), under the name Amblyomma tasquei, a synonym of Amblyomma romitii, Floch and Fauran (1958), Onofrio et al. (2006b), Barros-Battesti et al. (2007a), Dantas-Torres et al. (2019b) F: Floch and Abonnenc (1940), under the name Amblyomma tasquei, Floch and Fauran (1958), Onofrio et al. (2006b), Barros-Battesti et al. (2007a), Dantas-Torres et al. (2019b) N: Martins et al. (2010) L: none Note: Amblyomma romitii had been considered a synonym of Amblyomma extraoculatum but it was definitively reinstated as a valid species by Barros-Battesti et al. (2007a). See also Amblyomma extraoculatum.Published as part of Guglielmone, Alberto A., Petney, Trevor N. & Robbins, Richard G., 2020, Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019, pp. 1-322 in Zootaxa 4871 (1) on pages 117-118, DOI: 10.11646/zootaxa.4871.1.1, http://zenodo.org/record/442334
Ixodes festai Tonelli Rondelli 1926
No full text83. Ixodes festai Tonelli Rondelli, 1926b. A Palearctic species whose adults have been found on Galliformes: Phasianidae, and Passeriformes: Fringillidae, Prunellidae and Turdidae, with rare records from Carnivora: Canidae, and Erinaceomorpha: Erinaceidae. Ixodes festai is a very rare parasite of humans, with a record from people treated as provisionally valid in Guglielmone and Robbins (2018). M: Pérez-Eid (2007) F: Tonelli Rondelli (1926b) N: unknown; see note below L: unknown; see note below Redescriptions M: none F: Gilot and Pérez (1978), Siuda and Szymanski (1991), Siuda (1993), Pérez-Eid (2007) Note: Camicas et al. (1998) list the nymph and larva of Ixodes festai as having been described, but we follow Pérez-Eid (2007) who regards these stages as undescribed. Estrada-Peña et al. (2017) assert that the male of Ixodes festai in Contini et al. (2011) is, in fact, the male of Ixodes eldaricus. Estrada-Peña et al. (2017) also state that the supposed description of Ixodes festai in Arthur (1957c, 1965) in fact represents Ixodes ventalloi, and that this is also the case with the adults, larva and nymph described by Arthur (1958 a, 1963), and the larva described in Sénevet and Ripert (1967a) and Sénevet and Rodhain (1968).Published as part of Guglielmone, Alberto A., Petney, Trevor N. & Robbins, Richard G., 2020, Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019, pp. 1-322 in Zootaxa 4871 (1) on page 29, DOI: 10.11646/zootaxa.4871.1.1, http://zenodo.org/record/442334
Rhipicephalus humeralis Tonelli Rondelli 1926
No full text34. Rhipicephalus humeralis Tonelli Rondelli, 1926a. An Afrotropical species whose adults have been found on Mammalia (several orders), and Accipitriformes: Accipitridae. Rhipicephalus haemaphysaloides is a sporadic parasite of humans. M: Tonelli Rondelli (1926a), under the name Rhipicephalus pulchellus humeralis and given its current status in Zumpt (1950) F: Walker (1957) N: Walker (1957) L: Walker (1957) Redescriptions M: Zumpt (1950), Matthysse and Colbo (1987), Walker et al. (2000) F: Matthysse and Colbo (1987), Walker et al. (2000) N: Walker et al. (2000) L: Walker et al. (2000) Note: Walker (1957) and Walker et al. (2000) state that it can be difficult to morphologically separate females and nymphs of Rhipicephalus humeralis from those of Rhipicephalus pulchellus, but the larvae of these species are even more difficult to distinguish from each other.Published as part of Guglielmone, Alberto A., Petney, Trevor N. & Robbins, Richard G., 2020, Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019, pp. 1-322 in Zootaxa 4871 (1) on pages 224-225, DOI: 10.11646/zootaxa.4871.1.1, http://zenodo.org/record/442334
Hyalomma franchinii Tonelli Rondelli 1932
No full text9. Hyalomma franchinii Tonelli Rondelli, 1932. A Palearctic species whose adults are usually found on Artiodactyla: Bovidae and Camelidae; larvae and nymphs are commonly recovered from Squamata: Lacertidae. Adult ticks alone have been collected from Artiodactyla: Bovidae and Camelidae, Perissodactyla: Equidae, and Testudines: Testudinidae; nymphs alone have been recovered from Squamata: Agamidae, and Rodentia: Muridae. There are no bona fide records of Hyalomma franchinii causing human parasitism. M: Tonelli Rondelli (1932), under the name Hyalomma tunesiacum franchinii and given its current status in Hoogstraal and Kaiser (1958) F: Hoogstraal (1956a), under the name Hyalomma species N °1 near excavatum, as explained in Apanaskevich et al. (2008a) N: Apanaskevich et al. (2008a) L: Apanaskevich et al. (2008a) Redescriptions M: Hoogstraal (1956a, under the name Hyalomma species N °1 near excavatum), Hoogstraal and Kaiser (1958), Apanaskevich et al. (2008a) F: Hoogstraal and Kaiser (1958), Apanaskevich et al. (2008a) N: none L: nonePublished as part of Guglielmone, Alberto A., Petney, Trevor N. & Robbins, Richard G., 2020, Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019, pp. 1-322 in Zootaxa 4871 (1) on page 205, DOI: 10.11646/zootaxa.4871.1.1, http://zenodo.org/record/442334
Evaluation of a prototype spreader in the distribution of poultry manure
No full textA study of a prototype spreader evaluated the distribution of four poultry manures differing in terms of composting degree and moisture content. The chemical and physical properties such as wet bulk density, moisture content, and static frictional characteristics of the manures were evaluated. The prototype was set up for orchard and arable crops and the spinner speed and point of delivery of the organic fertilizer onto the spinners were adjusted. When properly adjusted it was suitable for broadcast manure distribution and in bands. In the former, an increase in spinner speed improved the throwing width and effective swath width. The best results for the point of delivery of the organic material were achieved by moving the point of delivery away from the center of the spinners. In the band distribution, the best results were observed when the point of delivery coincided with the center of the spinners and spinner speed was low. The physical properties of the fertilizers influenced the distribution pattern. The poorest results were observed in the distribution of manure with large particles and high moisture content. A proper management process of poultry manure is recommended for improving the distribution quality
The performance of an air-assisted sprayer operating in vines
No full textThe performance of a sprayer fitted with two vertical adjustable air outlets has been studied in vineyards investigating the effects of changing the fan speeds (1400, 2000 and 2500/min) and the direction of the air-jet (90 and 120° backward angle of the outlet side deflectors in relation to the treated row). Laboratory measurements were made before the field trials in order to define the operating characteristics of the sprayer. The sampling methodology in the vineyard was based on a framework and a system of intersecting nylon threads dividing the canopy into elementary volumetric zones. The spray flux entering and leaving the canopy, and the losses to the ground and to the air were measured. The spray coverage on the leaves at different heights and depths in the canopy has been also quantified. In all the tests, the air outlets were adjusted to localize the spray application to the appropriate heights determined by the growth of canopy. Considering the spray deposit and the environmental losses, the best results were observed with the 120° backward angle of the outlet side deflectors and the low and medium fan speeds. The effect of the fan speed compared with that of the direction of the air stream appeared more evident. The spray losses doubled by increasing the fan speed and frequently these losses were not limited to the treatment area but drifted outside. The degree and the uniformity of the spray coverage were strongly influenced by the high fan speed. © 2000 Silsoe Research Institute
Memorial sites in countries in transition to democracy
No full textThis work is inspired and originated from an experience of cooperation with the Council of Europe, lasted from summer 2005 to the end of 2009, as a member of various delegations that have made observation missions in different countries, mainly belonging to the former Soviet bloc and the former Yugoslavia. In that capacity the author was able to witness firsthand the effects of a policy change on society, which was very rapid after the fall of the Berlin Wall, an event that is a symbol, in those areas, the watershed between two opposed eras. On the one hand, the domain of socialcommunist ideology and on the other that freedom so much dreamed, which later led to considerable social dislocation, very much evident today. The search for memorial sites and their significance is the theme that unites this trip, with the discovery of "intangible areas" but place over the places
Redescription of the male of Ixodes festai Rondelli, 1926 (Ixodida: Ixodidae) on specimens from Sardinia (Italy)
No full textIxodes festai Rondelli, 1926 is a poorly known bird parasite tick. Its immature forms have not been described yet, while the adult forms only insufficiently, especially the male. In this note the presence of the male of Ixodes festai for the first time in Sardinia (Italy) is reported and a detailed redescription is provided. Morphometric data as well as photographs performed both with optical and electron microscope (ESEM FEI Quanta 200) are also shown
Tolerance and hematopoietic stem cell transplantation 50 years after Burnet’s theory
No full textIn 1949, the original formulation of Burnet's theory on the mechanisms responsible for the capacity of the immune system to discriminate between foreign antigens (i.e., the "non-self") and the cells of its own body (i.e., the "self") was published. Since then, further refinements and reconsiderations of the basic concepts underlying the achievement of a state of tolerance toward a certain antigen have been reported. Here, we attempt to analyze critically new clinical and experimental strategies aimed at inducing alloantigen-specific unresponsiveness. The data discussed in this review are drawn from articles and abstracts published in journals covered by the Science Citation Index and Medline. Induction of tolerance toward alloantigens still remains one of the most elusive goals of clinical immunology. Until now, nonspecific immunosuppressive drugs have been used to successfully perform both solid organ and hematopoietic stem cell transplantation. However, using this approach, patients given an allograft are exposed to the threat of infections, tumors, and other side effects. Moreover, in solid organ transplant recipients, permanent tolerance toward the graft's alloantigens is never achieved. Recently, considerable progress has been made in expanding our knowledge of transplant tolerance. The traditional model of central tolerance, derived from Burnet's concept, has been complemented by knowledge of mechanisms of peripheral tolerance. New experimental and therapeutic trials based on the blockade of costimulatory molecules, as well as on generation and infusion of either regulatory or nonimmunogenic cells, have been recently proposed for inducing alloantigen-specific tolerance.The achievements obtained in understanding the mechanisms of unresponsiveness toward non-self antigens are fundamental prerequisites for successful allogeneic transplants, and they could open a new exciting era of specific, immunosuppressive therapies
Upper age limits for accessing pediatric oncology centers in Italy: a barrier preventing adolescents with cancer from entering national cooperative AIEOP trials.
No full textA limited proportion of adolescents with cancer currently receives treatment at pediatric oncology centers and this factor is considered one of the possible explanations for the lack of improvement in survival trends observed over the years in this age group. The adoption of inflexible upper age limits for admitting patients to pediatric units may help to explain this situation. This paper reports the results of a national survey on adolescents' access to, and age limits adopted by, Italian pediatric oncology centers, briefly discussing possible actions to bridge the gap in adolescents' access to care. The analysis showed a great variability in the upper age limits adopted at Italian pediatric oncology centers; in many cases age limits are set at 16, 15, or even 14 years. As major finding, a correlation was documented between age limits and number of adolescents treated in the pediatric centers. In principle, this finding should suggest that increasing the upper age limit may result in an increase of the access of adolescents in pediatric oncology centers
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