1,602 research outputs found
Bertolonia kollmannii Bacci & R. Goldenberg
No full text8. Bertolonia kollmannii Bacci & R.Goldenberg (in Bacci et al. 2018: 775). Figure 11. Herbs 10–15 cm tall, rupiculous or terrestrial. Stem 1–2 mm wide, rounded, moderately to densely glandulose-punctate (trichomes less than 0.1 mm long) and sparsely to moderately glandulose-villose (trichomes 1.9–2.5 mm long). Leaves opposite; petioles 1–4 cm long, quadrangular, moderately glandulose-punctate and sparsely to moderately glandulose-villose (trichomes 1.2–1.7 mm long); blades 2.4–5.5 × 1.6–4.7 cm, bullate, ovate, base cordate, apex acute, margins crenate, moderately ciliate, adaxial surface green, sparsely to moderately glandulose-punctate and sparsely to moderately glandulose-villose (trichomes 2.5–2.8 mm long, brownish), abaxial surface vinaceous, sparsely to moderately glandulose-punctate and sparsely glandulose-villose (trichomes 0.6–1 mm long, brownish), main veins 3, plus one pair that do not reach the leaf apex, basal. Inflorescences terminal, pseudo-lateral when old, 4.9–6.1 cm long (5.3–9.1 cm long in old infructescences), branches sparsely glandulose-punctate and sparsely glandulose-villose, sparsely glandulose- punctate and sparsely glandulose-villose when old. Bracts 2–3.6 mm long, ovate, apex acute, margins ciliate, both surfaces glandulose-punctate and glandulose-villose; bracteoles 1–1.6 mm long, lanceolate, apex acute, both surfaces glandulose-punctate and glandulose-villose. Hypanthium 2.1–2.6 mm × 2.1–2.8 mm, short terete, glandulose-punctate and glandulose-villose. Sepals ovate, apex acute, margins fimbriate, ciliate, both surfaces glandulose-punctate and glandulose-villose. Petals 5.5–7 × 2.5–3 mm, pink, obovate, base cuneate, apex rounded, margins entire, eciliate, both surfaces papillose, otherwise glabrous. Stamens 3.2–4.7 mm long; filaments 1.4–2.3 mm long; anthers 1.9–2.4 mm long, cream colored, lanceolate, surface rugose or undulate, pore rounded, non-thickened margins, extrorse; connective prolonged (ca. 0.5 mm), dorsally bilobed. Style 3.4–5 mm long, slightly curved at the apex, glabrous. Fruits ca. 0.5 × 0.8 cm. Seeds reniform. Examined material: — BRAZIL. Bahia: Macarani, Carvalho 6995 (ALCB!, CEPEC!, HUEFS!, NY, UESC!, UPCB!). Additional material: — BRAZIL. Minas Gerais: Santa Maria do Salto, Amorim 5548 (CEPEC!, NY); Amorim 5845 (CEPEC!); Thomas 14624 (CEPEC!). Conservation Status: — There are only two known populations of the species, but most specimens were found in “Fazenda Duas Barras” (Minas Gerais), an area of primary forest inside the “Parque Nacional Alto Cariri”. Bertolonia kollmannii has an EOO of 82 km ² and AOO of 201 km ², and should be classified as “Critically Endangered” (CR), following IUCN (2017) categories. Notes: — Bertolonia kollmannii occurs in a restricted area along the border between the states of Bahia and Minas Gerais, in montane rainforests (Fig. 3h), in moist and shaded slopes near water. Collected with flowers in February and August, with fruits in February, April and August. The species can be recognized by the small, ovate and bullate leaf blades with an acute apex and crenate margins, flowers with fimbriate sepals, pink petals with the apex not apiculate and anthers dehiscing through an extrorse pore. Bertolonia kollmannii is similar to B. wurdackiana Baumgratz (1990: 125), endemic of the state of Espírito Santo. Bertolonia kollmannii differs by the usually smaller leaf blades (2.4–5.5 × 1.6–4.7 cm) with an acute apex and crenate margins (vs. usually bigger leaf blades (5.8–15 × 3–8 cm) with an obtuse or rounded apex and serrate margins in B. wurdackiana), by the pink, 5.5–7 mm long petals, with an obtuse apex (vs. white petals, 7.8–8.3 mm long, with an acute and dorsally apiculate apex) and cream-colored anthers dehiscing through an extrorse pore (vs. yellow anthers dehiscing through an introrse pore). For more details, see Bacci et al. (2018) and Table 1.Published as part of Bisewski, Gessica C. A., Bacci, Lucas F., Amorim, André M. & Goldenberg, Renato, 2022, The Genus Bertolonia (Melastomataceae) In The State Of Bahia, Brazil, pp. 153-183 in Phytotaxa 548 (2) on pages 169-170, DOI: 10.11646/phytotaxa.548.2.3, http://zenodo.org/record/659767
Judith Bacci: a mãe preta das artes
No full textEste trabalho apresenta a pesquisa e o processo de construção do livro ilustrado sobre a artista pelotense Judith Bacci, que integra o projeto: “As artistas do sul: experiências lúdicas e educativas”, coordenado pela professora Nádia da Cruz Senna. A pesquisa tem como foco as artistas mulheres da região Sul do Brasil, buscando visibilizar obras, trajetórias e processos criativos, através de livros ilustrados e práticas educativas, voltadas ao público infantojuvenil. O grupo pesquisou e desenvolveu livros e materiais didáticos sobre as artistas: Maria Lídia Magliani, Seli Maurício, Arlinda Nunes e Inah Costa
Judith Bacci: a mãe preta das artes
No full textEste trabalho apresenta a pesquisa e o processo de construção do livro ilustrado sobre a artista pelotense Judith Bacci, que integra o projeto: “As artistas do sul: experiências lúdicas e educativas”, coordenado pela professora Nádia da Cruz Senna. A pesquisa tem como foco as artistas mulheres da região Sul do Brasil, buscando visibilizar obras, trajetórias e processos criativos, através de livros ilustrados e práticas educativas, voltadas ao público infantojuvenil. O grupo pesquisou e desenvolveu livros e materiais didáticos sobre as artistas: Maria Lídia Magliani, Seli Maurício, Arlinda Nunes e Inah Costa
The challenges in establishing HEP in laboratory swine
No full textThe challenges in establishing HEP in laboratory swine
Barone F1, Ventrella D1, Elmi A1, Bacci ML1
1 Department of Veterinary Medical Sciences, Alma Mater Studiorum UNIBO
In 1998 from the International Conference on Humane Endpoints (HEP) in animal experiments for biomedical research emerged that HEPs are part of a dynamic process, influenced by scientific developments as well as by animal welfare concerns as they evolve with time. Nowadays there are several publications regarding criteria, definition and evaluation of HEPs, but mainly related to the most common laboratory animals such as mouse and rats (Aldred et al., 2002; Vlach et al., 2000). In the last years the role of swine as laboratory animal is increasing due to its translational value (Monticello and Haschek, 2016) and relatively lighter ethical implications when compared to the other large animal models. The need for a specific approach for each protocol, and the limited records available (Harvey-Clark et al., 2000; Malavasi et al., 2006), are probably two of the main reasons behind the lack of dedicated HEP guidelines for the laboratory swine. Despite the above-mentioned issues, the Directive 2010/63/EU requires specific HEPs for each submitted protocol, thus the need for more in-depth knowledge regarding pain assessment. A humane endpoint can be considered as a possible refinement alternative for those experiments that involve pain and discomfort to the animals leading to higher quality research without compromising welfare itself. The task of Veterinary Medicine is to find new biomarkers and behavioral patterns in order to provide researchers with accurate tools that allow for a better understanding of objective swine welfare in each experimental condition. Our aim, as veterinary physiologists, is to establish reliable guidelines for an early detection of para-physiological and pathological stress and pain patterns in the laboratory swine. In this abstract we will present our experience collected within the last 30 years regarding different experimental protocols with the swine as laboratory animal for xenotransplantation, endotoxic shock, gastrointestinal inflammation, inherited genetic disease, CNS and ocular disease.
Aldred, A.J., Cha, M.C., Meckling-Gill, K.A., 2002. Determination of a humane endpoint in the L1210 model of murine leukemia. Contemp. Top. Lab. Anim. Sci. Am. Assoc. Lab. Anim. Sci. 41, 24–27.
Harvey-Clark, C.J., Gilespie, K., Riggs, K.W., 2000. Transdermal fentanyl compared with parenteral buprenorphine in post-surgical pain in swine: a case study. Lab. Anim. 34, 386–398.
Malavasi, L.M., Nyman, G., Augustsson, H., Jacobson, M., Jensen-Waern, M., 2006. Effects of epidural morphine and transdermal fentanyl analgesia on physiology and behaviour after abdominal surgery in pigs. Lab. Anim. 40, 16–27. doi:10.1258/002367706775404453
Monticello, T.M., Haschek, W.M., 2016. Swine in Translational Research and Drug Development. Toxicol. Pathol. 44, 297–298. doi:10.1177/0192623316630838
Vlach, K.D., Boles, J.W., Stiles, B.G., 2000. Telemetric evaluation of body temperature and physical activity as predictors of mortality in a murine model of staphylococcal enterotoxic shock. Comp. Med. 50, 160–166
“The history of printing is in large measure the history of the title-page”: paratesto e figure in alcuni libri d’architettura e di medicina del Cinquecento a Venezia, in Some degree of happiness. Studi di storia dell’architettura in onore di Howard
No full textImplementation of a partially decentralized control architecture using wireless active sensors
No full textThis paper deals with the development of a vibration control architecture in which many stand-alone active dampers are involved. Each device is able to independently perform the control task, since it is embedded with sensors, an inertial actuator and a microcontroller, in which the control algorithm is implemented. The aim of this architecture is to improve the performance of a decentralized control strategy through a partial sharing of data between devices. The proposed control solution is based on the optimal control theory; the Linear Quadratic Regulator works with the full-state of the system, which is not available in many applications. In order to provide the entire state vector, state estimation is implemented in each device. A state recovery algorithm is adopted to improve the quality of the estimation without placing a hefty burden on the wireless channel. Numerical analysis is made in order to study the advantages of this method. Finally, the proposed solution is validated with experimental results from a clamped-clamped beam
Latent trait models for perceived risk assessment using a Covid-19 data survey
No full textAim of the contribution is analyzing potential events that may negatively impact individuals, assets, and/or the environment, and making judgments about the perceived personal and social riskiness of Covid-19 compared to other hazards belonging to health (AIDS, cancer, infarction), environmental (climate change), behavioral (serious car accidents), and technological (nuclear weapons) domains. The comparative risk analysis has been performed on a survey data collected during the first Italian Covid-19 lockdown. An item response theory model for polytomously scored items has been implemented for the analysis of the positioning of Covid-19 with respect to the other hazards in terms of perceived risk. Among the attributes determining the hazard's perceived risk, Covid-19 distinguishes for the knowledge of risks from the hazard, media attention, and fear caused by the hazard in the peers. Besides, through a latent regression analysis, the role of some individual characteristics on the perceived risk for Covid-19 has been examined. Our contribution allows us to disentangle among several aspects of hazards and describe the main factors affecting the perceived risk. It also contributes to determine if existing control measures are perceived as adequate and the interest for new media with related impact on a person's reaction
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