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Search Results: 1 - 10 of 6664 matches for " Angelino Julio; "
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Influência da toxina botulínica tipo A na fun??o lacrimal de pacientes com distonias faciais
Oliveira, Fernanda Castro de;Oliveira, Gustavo Castro de;Cariello, Angelino Julio;Felberg, Sergio;Osaki, Midori Hentona;
Arquivos Brasileiros de Oftalmologia , 2010, DOI: 10.1590/S0004-27492010000500003
Abstract: purpose: to analyze the influence of botulinum toxin on the lacrimal function of patients with facial dystonias. methods: patients with the diagnosis of hemifacial spasm or benign essential blepharospasm were evaluated and invited to answer the ocular surface index disease (osid) questionnaire. all patients underwent schirmer i and basal tests; break-up time (but) test and lacrimal clearance evaluation. on the following day, the patients were treated with botulinum toxin. the ocular surface index disease questionnaire and all the initial tests were reapplied 30 days after the treatment by the same examiner. results: twenty-six patients were enrolled in this study, 15 (57.7%) with hemifacial spasm and 11 (42.3%) with benign essential blepharospasm. the mean age of patients with hemifacial spasm was 70.9 ± 13.3 years and the male:female ratio was 1:1.5. in the group of patients with benign essential blepharospasm, the mean age was 68.9 ± 8.4 years with a female preponderance (90.0%). after the treatment, the ocular surface index disease score, schirmer i and basal tests score decreased in both groups. the mean of break-up time test increased significantly in both groups. the lacrimal clearance evaluation showed a greater number of eyes that achieved a complete drainage of the tears after the treatment in both groups. conclusion: the treatment with botulinum toxin improved dry eye symptoms in patients with facial dystonia. despite of the aqueous portion of tear have decreased, blink modifications improved the tear stability and drainage.
Effect of electroacupuncture to prevent selenite-induced cataract in Wistar rats
Cariello, Angelino Julio;Casanova, Fábio Henrique;Lima Filho, Acácio Alves de Souza;Juliano, Yara;Tabosa, Angela;
Arquivos Brasileiros de Oftalmologia , 2006, DOI: 10.1590/S0004-27492006000300003
Abstract: purpose: to investigate whether electroacupuncture can prevent selenite-induced cataract in an experimental model. methods: fifty wistar rat pups were randomized into 5 groups of 10 animals: group 1 (control), no procedure was performed; group 2 (selenite), sodium selenite (30 micromoles/kg body weight) was injected subcutaneously between postpartum days 10 to 12; group 3 (anesthesia) received the same dose of selenite and underwent ether inhalation anesthesia during 10 minutes daily for one week; group 4 (electroacupuncture) underwent the same procedure of group 3, but also receiving electroacupuncture (2 hz, 50 ma) applied to the neiguan (pc6) and guangming (gb37) acupoints during the anesthesia period; and group 5 (sham) underwent the same procedures of group 4, but needles were applied to non-acupoints. the development of cataract was assessed one week later, and its density was graded by slit lamp biomicroscopy. results: all control rats lenses (group 1) were clear. groups 2, 3 and 5 rats developed more severe cataract or complete opacification. in group 4 (electroacupuncture), 45% of eyes did not develop cataract while thirty per cent developed less severe cataract than groups 2, 3 and 5. the between-group difference was statistically significant (p<0.001). lens opacification grade in groups 1 and 4 was lower than in the groups 2, 3 and 5 (p<0.001). conclusion: electroacupuncture effectively decreased selenite-induced cataract formation rate in pup rats when needles were applied at specific acupoints.
Microbial keratitis in the elderly: a 32-year review
Passos, Renato Magalh?es;Cariello, Angelino Julio;Yu, Maria Cecília Zorat;H?fling-Lima, Ana Luisa;
Arquivos Brasileiros de Oftalmologia , 2010, DOI: 10.1590/S0004-27492010000400002
Abstract: purpose: to describe the demographic characteristics, associated factors and causative agents of infectious keratitis in the elderly in a tertiary referral center in s?o paulo, brazil. methods: a retrospective review of all patients aged 60 years and over with a presumptive diagnosis of infectious keratitis who had material collected for microbiological analysis, between the years 1975 and 2007 (32-year span). results: from a total of 7,060 age-independent cases of microbial keratitis, 1,545 cases in the elderly were reviewed, which had a mean age of 71.0 ± 7.8 years, ranging from 60 to 101 years. there were 707 males (45.6%) and 838 females (54.3%). associated factors were: past ocular surgery (25.1%), ocular trauma (7.2%) and contact lens use (3.0%). bacterioscopy was positive in 40.5% of cases. culture positivity for any agent was 53.5% (bacteria 47.0%, fungi 6.1%, acanthamoeba 0.4%). the most frequent bacteria were the gram-positive cocci (mostly coagulase-negative staphylococci) and gram-negative bacilli (mostly the genera pseudomonas, moraxella and proteus), while the most frequent fungi were the filamentous (mostly the genus fusarium). conclusions: this study represents a large series of microbial keratitis in the elderly in a single referral center. the most important factor associated with this condition in the elderly was past ocular surgery. the most frequent causative agents were bacteria, especially gram-positive cocci and gram-negative bacilli.
Epidemiological findings of ocular trauma in childhood
Cariello, Angelino Julio;Moraes, Nilva Simerem Bueno;Mitne, Somaia;Oita, Celina Shizuka;Fontes, Bruno Machado;Melo Jr, Luiz Alberto Soares;
Arquivos Brasileiros de Oftalmologia , 2007, DOI: 10.1590/S0004-27492007000200015
Abstract: purpose: to describe epidemiological findings of ocular trauma in childhood in an emergency unit. methods: a retrospective study was carried out including patients under 16 years old who were treated for ocular trauma at the emergency unit of the federal university of s?o paulo from september 2001 to september 2004. age, sex, involved eye, place, circumstance and mechanism of injury, initial visual acuity and immediate management were recorded. results: a total of 273 patients were included in the study. the age group comprising most cases was 7 to 10 years (39.9%). the most frequent cause of ocular injury was traumatism by external agents like stone, iron and wood objects (27.9%). the commonest place was the home (53.1%). initial visual acuity was over 20/40 in 63.4% of cases. closed globe injury occurred in 201 (73.6%) accidents. seventy-six children (27. 8%) were treated with medicines and in forty-eight (17.6%) cases surgery was necessary. conclusion: ocular trauma in childhood was more frequent in the male schoolchild and was due mostly to traumatism with agents like stone, wood and iron pieces, domestic utensils and leisure objects. the injuries occurred most frequently at home. closed globe injuries predominated. programs of education and prevention for ocular trauma in childhood are necessary.
Floppy eyelid syndrome: review
Miyamoto, Cristina;Espírito Santo, Lilian Cristina;Roisman, Luiz;Moreno, Pilar de Andrade Memoria;Cariello, Angelino Julio;Osaki, Midori Hentosa;
Arquivos Brasileiros de Oftalmologia , 2011, DOI: 10.1590/S0004-27492011000100016
Abstract: floppy eyelid syndrome is characterized by the easy evertion of the upper eyelid which occurs spontaneously during the sleep, causing the exposure of the eye surface and chronic papillary conjunctivitis. its pathogenesis is not totally defined yet: it is usually more frequent in middle-aged, male obese patients and it is associated with systemic disorders such as obstructive sleep apnea, high blood pressure and diabetes. on the occasions which conservative treatment fails, surgical procedures present good results, including surgical techniques which are constantly evolving.
Demodex folliculorum on the eyelash follicule of diabetic patients
Yamashita, Letícia Satsiê Fátima de Freitas;Cariello, Angelino Julio;Geha, Nahin Mohamed Ali;Yu, Maria Cecilia Zorat;Hofling-Lima, Ana Luisa;
Arquivos Brasileiros de Oftalmologia , 2011, DOI: 10.1590/S0004-27492011000600008
Abstract: purpose: to compare the prevalence of demodex folliculorum on the eyelashes of patients with proliferative diabetic retinopathy and healthy voluntaries. methods: type 2 diabetic patients with proliferative retinopathy and age- and gender-matched healthy voluntaries (group control) underwent a slit lamp examination which three eyelashes containing cylindrical dandruff were removed from each lid by fine forceps. the lashes were dyed with fluorescein and the presence of demodex folliculorum was verified by direct visualization under a light microscope. the mites were recognized based on its morphology and peculiar movement. the results were expressed in "positive" when at least one mite on one lash was found and "negative" when no mite was identified. the chi-square test was used for comparing mites' presence in both groups. results: forty-two patients were included in each group. the age ranged from 50 to 60 years old, with a mean of 56.4 ± 5.2 years. the male:female ratio was 0.6:1. there was no statistically significant difference with regard to age and gender in both groups (p>0.05). demodex folliculorum was significantly more prevalent in diabetic patients (54.8%) than in control patients (38.1%) (p=0.048). conclusion: demodex folliculorum was more prevalent in diabetic patients than in healthy voluntaries, independently of gender and age.
Sebaceous carcinoma of the eyelid - different diagnostic times, different outcomes: case reports
Vianna, Lucas Monferrari Monteiro;Cariello, Angelino Julio;Lowen, Márcia Serva;Sant'Anna, Ana Estela Besteti Ponce;Hofling-Lima, Ana Luisa;
Arquivos Brasileiros de Oftalmologia , 2011, DOI: 10.1590/S0004-27492011000600013
Abstract: sebaceous carcinoma of the eyelid is a very rare slow-growing tumor and is considered an aggressive eyelid neoplasm. it can reach mortality rate of about 6%. diagnosis is often delayed because of its ability to masquerade as other periocular lesions, both clinically and histologically. we present three cases of sebaceous carcinoma, with different surgical outcomes, showing the importance of early diagnosis.
Changes of Root Hydraulic Conductivity and Root/Shoot Ratio of Durum Wheat and Barley in Relation to Nitrogen Availability and Mercury Exposure
Celestino Ruggiero,Giovanna Angelino
Italian Journal of Agronomy , 2011, DOI: 10.4081/ija.2007.281
Abstract: The aim of this research was to verify, on whole plant level and during all the plant cycle, the hypothesis that nitrogen deficiency reduces root hydraulic conductivity through the water channels (aquaporins) activity, and that the plant reacts by changing root/shoot ratio. Root hydraulic conductivity, plant growth, root/shoot ratio and plant water status were assessed for durum wheat (Triticum durum Desf.) and barley (Hordeum vulgare L.), as influenced by nitrogen availability and HgCl2 treatment. On both species during the plant cycle, nitrogen deficiency induced lower root hydraulic conductivity (-49 and -66% respectively for barley and wheat) and lower plant growth. On wheat was also observed cycle delay, lower plant nitrogen content, but not lower leaf turgor pressure and epidermic cell dimension. The lower plant growth was due to lower plant dimension and lower tillering. Root /shoot ratio was always higher for nitrogen stressed plants, whether on dry matter or on surface basis. This was due to lower effect of nitrogen stress on root growth than on shoot growth. On wheat HgCl2 treatment determined lower plant growth, and more than nitrogen stress, cycle delay and higher root/shoot ratio. The mercury, also, induced leaf rolling, lower turgor pressure, lower NAR, higher root cell wall lignification and lower epidermic cell number per surface unity. In nitrogen fertilized plants root hydraulic conductivity was always reduced by HgCl2 treatment (-61 and 38%, respectively for wheat and barley), but in nitrogen unfertilized plants this effect was observed only during the first plant stages. This effect was higher during shooting and caryopsis formation, lower during tillering. It is concluded that barley and durum wheat react to nitrogen deficiency and HgCl2 treatment by increasing the root/shoot ratio, to compensate water stress due to lower water root conductivity probably induced by lower aquaporin synthesis or inactivation. However, this compensation is not enough to keep a normal water status and this leads to lower plant growth. At the same time some doubts persist about mercury toxicity on other plant functions besides the aquaporin blockage.
Changes of Root Hydraulic Conductivity and Root/Shoot Ratio of Durum Wheat and Barley in Relation to Nitrogen Availability and Mercury Exposure
Celestino Ruggiero,Giovanna Angelino
Italian Journal of Agronomy , 2007, DOI: 10.4081/ija.2007.281
Abstract: The aim of this research was to verify, on whole plant level and during all the plant cycle, the hypothesis that nitrogen deficiency reduces root hydraulic conductivity through the water channels (aquaporins) activity, and that the plant reacts by changing root/shoot ratio. Root hydraulic conductivity, plant growth, root/shoot ratio and plant water status were assessed for durum wheat (Triticum durum Desf.) and barley (Hordeum vulgare L.), as influenced by nitrogen availability and HgCl2 treatment. On both species during the plant cycle, nitrogen deficiency induced lower root hydraulic conductivity (-49 and -66% respectively for barley and wheat) and lower plant growth. On wheat was also observed cycle delay, lower plant nitrogen content, but not lower leaf turgor pressure and epidermic cell dimension. The lower plant growth was due to lower plant dimension and lower tillering. Root /shoot ratio was always higher for nitrogen stressed plants, whether on dry matter or on surface basis. This was due to lower effect of nitrogen stress on root growth than on shoot growth. On wheat HgCl2 treatment determined lower plant growth, and more than nitrogen stress, cycle delay and higher root/shoot ratio. The mercury, also, induced leaf rolling, lower turgor pressure, lower NAR, higher root cell wall lignification and lower epidermic cell number per surface unity. In nitrogen fertilized plants root hydraulic conductivity was always reduced by HgCl2 treatment (-61 and 38%, respectively for wheat and barley), but in nitrogen unfertilized plants this effect was observed only during the first plant stages. This effect was higher during shooting and caryopsis formation, lower during tillering. It is concluded that barley and durum wheat react to nitrogen deficiency and HgCl2 treatment by increasing the root/shoot ratio, to compensate water stress due to lower water root conductivity probably induced by lower aquaporin synthesis or inactivation. However, this compensation is not enough to keep a normal water status and this leads to lower plant growth. At the same time some doubts persist about mercury toxicity on other plant functions besides the aquaporin blockage.
Attribute-Efficient Evolvability of Linear Functions
Elaine Angelino,Varun Kanade
Computer Science , 2013,
Abstract: In a seminal paper, Valiant (2006) introduced a computational model for evolution to address the question of complexity that can arise through Darwinian mechanisms. Valiant views evolution as a restricted form of computational learning, where the goal is to evolve a hypothesis that is close to the ideal function. Feldman (2008) showed that (correlational) statistical query learning algorithms could be framed as evolutionary mechanisms in Valiant's model. P. Valiant (2012) considered evolvability of real-valued functions and also showed that weak-optimization algorithms that use weak-evaluation oracles could be converted to evolutionary mechanisms. In this work, we focus on the complexity of representations of evolutionary mechanisms. In general, the reductions of Feldman and P. Valiant may result in intermediate representations that are arbitrarily complex (polynomial-sized circuits). We argue that biological constraints often dictate that the representations have low complexity, such as constant depth and fan-in circuits. We give mechanisms for evolving sparse linear functions under a large class of smooth distributions. These evolutionary algorithms are attribute-efficient in the sense that the size of the representations and the number of generations required depend only on the sparsity of the target function and the accuracy parameter, but have no dependence on the total number of attributes.
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