104,187 research outputs found
La gallina criolla colombiana
No full textPara la elaboración de este libro se utilizaron además varios trabajos y documentos históricos donde se destaca, el "Tratado de avicultura especies y razas", escrito Dürigen, B (1931). quien describe las características de la gran mayoría de las razas de gallinas, pero en forma amplia ya que detalla 117 razas incluyendo discusiones sobre la domésticación, el aspecto exterior y la formación de la raza, con una descripción de los aspectos históricos, relacionados con su origen y distribución, dicho autor asume la clasificación de la gallina doméstica como Gallus domesticus y le adiciona otra(s) palabra(s) por ejemplo Gallus domesticus barbatus turingiacus, posibilitando su identificación, sin embargo dicha forma de clasificar no está acorde con el "Código Internacional de Nomenclatura Zoológica" (1999), donde se debe aplicar el principio de nomenclatura binomial y según el artículo 5 el nombre científico de una especie es una combinación de dos nombres, la primera es el nombre genérico y el segundo es el nombre específico, por tal razón en el libro y acorde con el trabajo "Synopsis and classification of living organisms" , editado por Sybil P. Parker, se describe la especie como Gallus domesticus, y en este libro se propone una reorganización para identificar los tipos de gallina criolla, agregando la subespecie con el tercer nombre dado por Dürigen (1931) a las gallinas que describió, como un homenaje a su gran trabajo investigativo, en este mismo ejemplo quedaría Gallus domesticus L subespecie barbatus; el segundo libro se titula "Genética avícola" de Hutt, F.B (1960), donde se centra en las variaciones genéticas relacionadas con: la longitud de las plumas, la distribución de las plumas, la estructura de las plumas, el esqueleto axial, el esqueleto apendicular, la coloración de las aves y las mutaciones; el tercer texto se refiere a la tesis en zootecnia de Valencia Ll, N.F y Betancourth G, L.F (1991), "Origen, desarrollo y descripción de los tipos de gallina criolla existentes en varios municipios del Valle del Cauca", donde se describen I1 tipos de la gallina criolla, se realiza una descripción historica sobre la presencia de gallinas en America del Sur, demostrando su origen precolombino (Isla de Pascua) lo que permitió contextualizar; se destacan las investigaciones del chileno Wilhelm (1953 , 1957, 1963, 1965, 1966), quien describe y realiza varias investigaciones sobre la gallina americana, Gallus inauris (Castelloi, 1914); finalmente algunos documentos históricos sobre Cronistas de Indias y Viajeros, describen el objeto de estudio
Anatomical Radical Retropubic Prostatectomy in Patients with a Preexisting Three-Piece Inflatable Prosthesis: A Series of Case Reports
No full textOnly few reports addressed the outcome of patients submitted to anatomical radical retropubic prostatectomy (RRP) with an indwelling inflatable penile prosthesis (IPP). To assess the feasibility and safety of RRP in patients with clinically localized prostate cancer and a previously implanted with an IPP. We evaluated the surgical parameters and the follow-up functional results in this particular patient population. Four patients previously submitted to IPP implant for severe erectile dysfunction underwent RRP for organ-confined prostate cancer. Patients' charts were carefully reviewed to investigate pre- and perioperative details. Patients were evaluated by the International Index of Erectile Function (IIEF) preoperatively and at 6 months postoperatively. Patients were then contacted to assess long-term functional and oncological outcome. The outcome of the procedures was comparable to a normal population in terms of operating time, estimated blood loss, hospitalization time, and pathological outcome. No injury to the preexisting penile implant was reported. Continence was obtained in 3 (75%) patients at catheter removal, and in 1 (25%) patient at the 1-month follow-up. No major intra- and postoperative complications were reported. All patients were able to use their prosthesis after RRP. No statistical difference in pre- and post-RRP EF domain scores was found. The presence of an IPP in patients with prostate cancer is not a contraindication to perform an anatomical RRP. Surgery can be performed safely without injuring the implant and the clinical outcome in these patients is satisfactory. Postoperative implant use is not affected by RRP. Deho' F, Salonia A, Briganti A, Zanni G, Gallina A, Rokkas K, Guazzoni G, Rigatti P, and Montorsi F. Anatomical radical retropubic prostatectomy in patients with a preexisting three-piece inflatable prosthesis: A series of case reports. J Sex Med 2009;6:578-583. OI Guazzoni, Giorgio Ferruccio/0000-0002-5713-8313; Gallina, Andrea/0000-0002-4540-956
L'illumunazione di emergenza negli edifici pregevoli per arte e/o storie: problematiche aperte ad esempi di soluzioni
No full text
Le sostanze recuperabili dai reflui oleari: aggiornamento della ricerca applicata
No full textIl libretto descrive le attività condotte nel triennio 2009-2011 di dimostrazione d'uso e di possibilità offerte da un impianto di filtrazione delle acque di vegetazione portatile, assemblato in un container.
Si tratta di un progetto finanziato dalla Comunità Europea, attraverso l'associazione di produttori oleari della Regione Emilia-Romagna ARPO.
Il capitolo, nello specifico, affronta gli aspetti analitici e di valutazione della qualità degli estratti (dai concentrati) di fenoli ottenuti e delle acque (dai permeati)
Leakage in root canal system during and after treatment: A review
No full textDuring and after a canal treatment any ingress of germs in the pulp space should be avoid because they are responsible for pulpal and periradicular diseases. Often this treatment is performed in more than one visit and amongst those visits a temporary restoration should impede the re-infection. Initially a pre-treatment (build-up) is required in order to prevent fluid leakage and allow a better isolation by rubber dam and a stabilised clamp. Several restorative materials are on the market and a correct choice is crucial to avoid failure considering several factors such as canal dressing medication, number of day between visits, extension of restoration, occlusal load, presence of parafunctions etc. In filled root canals bacteria are able to colonize even small gaps between the canal walls and the gutta-percha. When the root canal treatment is concluded by the final restoration the risk of leakage is not eliminated in fact a new caries, a loss of adhesion, a crown or root fracture might occur. Even dough the final post endodontic restoration is the last step performed to prevent a coronal leakage this unwanted phenomena unfortunately can append any time and from the initial steps during a root canal treatment. Just a standardized follow up can discover those dangerous conditions which may lead to a silent periradicular disease
Subgroupoids of some direct products and formal power series
No full textWe consider, in rings of formal power series, the series whose coefficients, in a certain sense, “tends to infinity”. In this manner, we determine subrings of the rings as above, which have several derivations. Some of these subrings are composition rings also. At first, we study direct products of groupoids
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