Long-term efficiency of cataract surgery with hydrophilic acrylic Ioflex intraocular lens

OBJECTIVE: To evaluate the efficiency of long-term cataract surgery using low-cost intraocular lens implantation in community campaigns. METHODS: Fifty-eight randomly selected patients were evaluated four years after phacoemulsification and Ioflex intraocular lens implantation. Causes of low visual acuity related to the intraocular lens were evaluated, and treatment costs were calculated. RESULTS: The mean age of patients was 72±10.2 years. Four years after surgery, 25 eyes (43.0%) had decreased visual acuity related to the intraocular lens: posterior capsule opacification was noted in 24 eyes (41.3%), and intraocular lens opacification was noted in one eye (1.7%). The total cost of the post-surgical complication treatments represented 6.3% of the initial budget of the entire surgical patient group. CONCLUSIONS: The efficiency of cataract surgery with low-cost Ioflex intraocular lens implantation was significantly reduced in a long-term follow-up study because postoperative complications related to intraocular lenses emerged at higher rates than when the gold-standard treatment was used

Avaliação de atributos em lotes de sementes de milho através do SIARCS 3.02.

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Novel micro-flat springs using the superior elastic properties of metallic glass foils

A thin metallic glass foil of 100 mg mass forming a sinusoidal arc behaves as non-conventional flat micro-spring withstanding loads 105 times higher than its load. Upon a normal load applied on the top of the arc, the foil deforms elastically leading to sinusoidal wavy patterns of higher order. The lifespan of the novel spring is higher than conventional low cycle springs and can potentially be further improved by eliminating surface and edge preparation induced defects. This unique behavior of metallic glass foils has the potential to revolutionize the field of springs and can be exploited for numerous applications

RFID System Applicability Model for Traceability of Luggage at Airports

One of the critical points in the framework of air transport, is the management of luggage at airports. Every year, a large number of people feel the need to travel for various reasons and that efficient management is a difficult task that needs to keep up with the growth demand in a satisfactorily. One of the problems that has not been solved is exactly the loss, misplacement or mishandling of baggage at airports, given the difficulty of the current management systems to monitor the baggage, which causes unwanted situations to life. Radiofrequency Identification Technology (RFID), integrated with an information system, presents itself as a solution to numerous daily setbacks in various segments, because its main feature is basically to capture information at a distance about some element in movement. By implementing a smart tag (tag) in each baggage, it becomes possible to trace it along the path. In order to solve this problem, the present work aims to develop a prototype software, integrated with RFID, to simulate the control of luggage at airports by means of three scenarios where luggage misplacement may occur

Determinação da sobrecarga de ferro na talassemia pela IRM hepática e ferritina

Accumulation of iron in thalassemia causes organ damage and reduces patient survival due to heart lesions in the second decade of life. Iron deposits are monitored by direct (biopsy) and indirect methods (ferritin) with sequential data being better than isolated measurements. This paper compares two indirect measurements of iron overload; a single hepatic iron concentration (HIC) by magnetic resonance and mean ferritin levels over four years. A retrospective study of 25 patients from the Centro Regional de Hemoterapia in Ribeirão Preto, Brazil was carried out. High HIC (above 7 mg per gram of dry weight) was found in 20 patients and high mean serum ferritin (above 2500 μg/L) in 10 patients. Stratification into three levels (low, moderate and high) of iron overload gave similar results in both tests. Many other factors influence de degree of iron overload in thalassemia. No correlation was found using a non-parametric statistical test between HIC and mean serum ferritin. Both methods provide better planning of chelation therapy.O acúmulo de ferro na talassemia causa lesões orgânicas e reduz a sobrevida do paciente por lesão cardíaca na segunda década da vida, e tem sido avaliado por medidas diretas (biópsia) e indiretas (ferritina). As medidas isoladas carecem de valor, sendo preferidas as sequenciais. Este trabalho pretende comparar medidas indiretas de sobrecarga de ferro, uma medida da concentração de ferro hepático por ressonância magnética, e a ferritina sérica média dos últimos quatro anos. Trata-se de estudo retrospectivo de 25 pacientes do Centro Regional de Hemoterapia, em Ribeirão Preto, Brasil. Encontrou-se em vinte pacientes ferro hepático acima de 7 mg/g peso seco e ferritina média elevada acima de 2.500 ug/l em dez. Estratificação em três níveis de sobrecarga (leve, moderada e grave) produziu resultados semelhantes em ambos os testes. Vários outros fatores influenciam o grau de sobrecarga de ferro na talassemia. Não houve correlação significativa com aplicação de testes não-paramétricos. Ambos os métodos usados concomitantemente levarão a um melhor planejamento da terapia quelante.FapespCNPqCapes and Fundação Hemocentr

Correlation of the HPV genotype with the degree of dysplasia in patients with cervicouter cancer in the General Hospital Naval of high specialty

Background: Cervical-uterine cancer (CaCu) is the second leading cause of death in women worldwide and the first in developing countries. It has been correlated to human papillomavirus (HPV) genotype with cancerous lesions reported in histopathological studies, which tells us about the prognosis of the patients. Objective of present study was to correlate the genotype of HPV to the histopathological result evaluated in these patients at the Naval Hospital of High Specialty.Methods: A total of 316 women attended at the Naval General High Marine Hospital from 2015 to 2016 with HPV diagnosis were included, the histopathological report was correlated with the HPV genotype determined by the chain reaction of the polymerase (PCR). Statistical tests were applied for Smirnov and Kolmogorov, Chi square, OR, Anova-Kruskal Wallis. Data were processed using the SPSS software version 19 and a P <0.05 was taken as statistical significance.Results: The mean age was 36.0±10.2. The detection of cervical cancer was reported in 3.8% and stage CIN III 2.5%; the highest proportion of patients were in the CIN I stage (51.3%), while the CIN II was 9.2%, and up to 30.7% were classified as HPV infection; only 2.5% were normal. The types of HPV prevalent by PCR were those at high risk different from 16 and 18 with a rate of 34.8%, then 16 at 5.1% and 18 at 0.3%. More than half of the cases (54.4%) were negative for the serotypes analyzed. In general terms, CaCu and CIN III were observed in 15% of the type 16, 0% in type 18, 25% in other high risk and 60% in negative PCR.Conclusions: In this study, we obtained essential data that tells us that this population could be treated with low-risk HPV types associated with CaCu