Desempenho de semeadoras-adubadoras no estabelecimento da cultura do arroz de sequeiro

Upland rice (Oryza sativa L.) sowing with five sowing/fertilizing machines, EG 212-AS, PAR 3000, PST 2, MP 2000, and PP Solo models, working at three different displacement velocities, on a typic Haplustox soil, on two soil tillages (conventional and minimum tillage) was studied. The machines showed different performance in relation to operation velocity, sowing capacity and fuel consumption. Seed distribution, sowing depth and seed integrity were not affected by increasing machine operation velocity. There were less seeds per meter and sowing was deeper at minimum tillage. Fertilization depth was similar for all machines, independently of operation velocity and soil tillage. The worm gear fertilizer dosers were more suitable than the rosette or rotor ones. Rice sown with PST 2 yielded better than sown with EG 212-AS.Estudou-se o plantio do arroz de sequeiro (Oryza sativa L.), realizado por cinco semeadoras-adubadoras, modelos EG 212-AS, PAR 3000, PST 2, MP 2000 e PP solo, as quais foram operadas em três diferentes velocidades de deslocamento, em um solo Latossolo Vermelho-Escuro, submetido a dois métodos de preparo (um, reduzido, e o outro, convencional). As máquinas apresentaram desempenho diferenciado quanto à velocidade de operação, quanto à capacidade de plantio e quanto ao consumo de combustível. A distribuição e os danos mecânicos nas sementes e a profundidade de semeadura não foram afetadas pelo acréscimo na velocidade de operação das semeadoras. No solo com preparo reduzido houve menor distribuição de sementes por metro e maior profundidade de semeadura. A profundidade de adubação foi semelhante com todas as máquinas, independentemente da velocidade de operação e do preparo do solo. Os dosadores de adubo do tipo rosca-sem-fim foram mais eficazes que os dos tipos roseta e rotor. A produtividade do arroz foi maior nos plantios realizados pela PST 2, a qual diferiu significativamente da proporcionada pela EG 212-AS

Desempenho de semeadoras-adubadoras no estabelecimento da cultura do arroz de sequeiro

Upland rice (Oryza sativa L.) sowing with five sowing/fertilizing machines, EG 212-AS, PAR 3000, PST 2, MP 2000, and PP Solo models, working at three different displacement velocities, on a typic Haplustox soil, on two soil tillages (conventional and minimum tillage) was studied. The machines showed different performance in relation to operation velocity, sowing capacity and fuel consumption. Seed distribution, sowing depth and seed integrity were not affected by increasing machine operation velocity. There were less seeds per meter and sowing was deeper at minimum tillage. Fertilization depth was similar for all machines, independently of operation velocity and soil tillage. The worm gear fertilizer dosers were more suitable than the rosette or rotor ones. Rice sown with PST 2 yielded better than sown with EG 212-AS.Estudou-se o plantio do arroz de sequeiro (Oryza sativa L.), realizado por cinco semeadoras-adubadoras, modelos EG 212-AS, PAR 3000, PST 2, MP 2000 e PP solo, as quais foram operadas em três diferentes velocidades de deslocamento, em um solo Latossolo Vermelho-Escuro, submetido a dois métodos de preparo (um, reduzido, e o outro, convencional). As máquinas apresentaram desempenho diferenciado quanto à velocidade de operação, quanto à capacidade de plantio e quanto ao consumo de combustível. A distribuição e os danos mecânicos nas sementes e a profundidade de semeadura não foram afetadas pelo acréscimo na velocidade de operação das semeadoras. No solo com preparo reduzido houve menor distribuição de sementes por metro e maior profundidade de semeadura. A profundidade de adubação foi semelhante com todas as máquinas, independentemente da velocidade de operação e do preparo do solo. Os dosadores de adubo do tipo rosca-sem-fim foram mais eficazes que os dos tipos roseta e rotor. A produtividade do arroz foi maior nos plantios realizados pela PST 2, a qual diferiu significativamente da proporcionada pela EG 212-AS

Cohort profile : the Baependi Heart Study-a family-based, highly admixed cohort study in a rural Brazilian town

PURPOSE: Cardiovascular disease (CVD) is a major challenge to global health. The same epidemiological transition scenario is replayed as countries develop, but with variations based on environment, culture and ethnic mixture. The Baependi Heart Study was set up in 2005 to develop a longitudinal family-based cohort study that reflects on some of the genetic and lifestyle-related peculiarities of the Brazilian populations, in order to evaluate genetic and environmental influences on CVD risk factor traits. PARTICIPANTS: Probands were recruited in Baependi, a small rural town in the state of Minas Gerais, Brazil, following by first-degree and then increasingly more distant relatives. The first follow-up wave took place in 2010, and the second in 2016. At baseline, the study evaluated 1691 individuals across 95 families. Cross-sectional data have been collected for 2239 participants. FINDINGS TO DATE: Environmental and lifestyle factors and measures relevant to cardiovascular health have been reported. Having expanded beyond cardiovascular health outcomes, the phenotype datasets now include genetics, biochemistry, anthropometry, mental health, sleep and circadian rhythms. Many of these have yielded heritability estimates, and a shared genetic background of anxiety and depression has recently been published. In spite of universal access to electricity, the population has been found to be strongly shifted towards morningness compared with metropolitan areas. FUTURE PLANS: A new follow-up, marking 10 years of the study, is ongoing in 2016, in which data are collected as in 2010 (with the exception of the neuropsychiatric protocol). In addition to this, a novel questionnaire package collecting information about intelligence, personality and spirituality is being planned. The data set on circadian rhythms and sleep will be amended through additional questionnaires, actimetry, home sleep EEG recording and dim light melatonin onset (DLMO) analysis. Finally, the anthropometric measures will be expanded by adding three-dimensional facial photography, voice recording and anatomical brain MRI

Comparação da perviedade entre artéria radial e veia safena em pacientes em pós-operatório de cirurgia de revascularização miocárdica com retorno dos sintomas Comparison of patency between radial artery and saphenous vein in a coronary artery bypass grafting post operative with return of the symptoms

OBJETIVO: Comparar a perviedade da artéria radial e veia safena em pacientes com retorno dos sintomas após cirurgia de revascularização do miocárdio (CRVM). MÉTODOS: Estudo retrospectivo. No período de janeiro de 1998 a dezembro de 2005, foram realizadas 469 CRVMs com o uso da artéria radial dentre os enxertos, no Hospital Vera Cruz, em Belo Horizonte/MG. Destes, 94 pacientes apresentaram alterações isquêmicas no pós-operatório recente ou tardio e foram reestudados com cineangiocoronariografia. Os enxertos foram divididos em três grupos: artéria torácica interna (ATI), artéria radial (AR) e veia safena (VS), e foram estratificados segundo a gravidade das lesões: sem lesão grave (<70%), obstrução grave (70% a 99%) e oclusão. RESULTADOS: Nos 94 pacientes reestudados, foram utilizados 86 enxertos de ATI, 94 de AR e 111 de VS. Dos 86 enxertos de ATI, 73 (84,88%) se encontravam sem lesões graves; dos 94 enxertos de AR eram 55 (58,51%) e dos 111 enxertos de VS, 73 (65,76%) estavam livre de lesões graves. Houve diferença estatística (P= 0,001) entre os enxertos de AR e VS com maior perviedade da VS. As mulheres apresentaram pior resultado quanto à perviedade da AR (65,7% e 40,7%) com P= 0,006. Quanto à artéria coronária revascularizada, houve diferença entre os enxertos usados para artéria coronária direita, com melhor resultado da VS (P= 0,036). CONCLUSÃO: A AR mostrou-se com pior resultado que a VS como segundo enxerto na CRVM, principalmente em mulheres e quando anastomosada na coronária direita.<br>OBJECTIVE: To compare the radial artery and saphenous vein's patency in patients with recurrence of symptoms in a coronary artery bypass grafting (CABG). METHODS: Retrospective study. From January 1998 to December 2005, 469 CABGs were performed using the radial artery as a graft, in Vera Cruz Hospital in Belo Horizonte/ MG. Among the patients who underwent those surgeries, 94 presented ischemic changes in early or late postoperative period, which led them to be re-evaluated by coronary angiography. The grafts were divided in three groups: internal thoracic artery (ITA), radial artery (RA) and saphenous vein (SV), and they were stratified according to the severity of injury: uninjured or patent (< 70%), severe obstruction (70 to 99%) and occlusion. RESULTS: For the 94 patients in the study, 86 grafts of ITA, 94 of RA and 111 of SV were used. For the 86 ITA grafts, 73 (84.88%) were found patent. For the 94 RA grafts, 55 (58.51%) were found patent, and for the 111 SV grafts, 73 (65.76%) were uninjured. A statistically significant difference (P= 0.001) was found between RA and SV grafts, with a higher patency found for VS graft. For the RA grafts, women presented a worse result concerning the RA patency (65.7% and 40.7%), with P = 0.006. Concerning coronary revascularization, a statistically significant difference was found only for the grafts used for the right coronary, with a better result for the SV (P = 0.036). CONCLUSION: Radial artery (RA) presented worse results when compared to Saphenous vein (SV) as a second graft in a CABG, especially in women who were anastomosed in the right coronary artery

Divertículo congênito do ventrículo esquerdo associado a defeitos da parede tóraco-abdominal: relato de paciente operada em idade adulta Muscular diverticulum of the left ventricle associated with anomalies of the abdominal wall: report of an adult patient operated on

O divertículo congênito do ventrículo esquerdo é anomalia rara. Pode estar associado a defeitos da parede tóraco-abdominal e a lesões intracardíacas. Quando isto ocorre, recebe o nome de síndrome de Cantrell. É relatado o caso de paciente de 25 anos de idade submetida a tratamento cirúrgico.Muscular diverticulum of the left ventricle is a rare anomaly. It is frequently associated with other congenital anomalies of the abdominal wall, sternum, diaphragm, pericardium and the heart itself. These have been described as Cantrell syndrome. This paper reports a case of a 25-year-old female patient submitted to surgical repair of this syndrome

The transvalvar gradient after the aortic porcine stented valve replacement can be predicted?

OBJECTIVE: This work aimed at establishing scientific criteria using the valve size mismatch to predict the transvalvar gradient resultant of aortic valve replacement. METHOD: Thirty-one consecutive patients who survived aortic valve replacement surgeries using Labcor porcine stented prosthesis, in the period from March 1993 to June 2002 were studied. Each patient was submitted to an echocardiogram within three postoperative months at the same institution. The mean transvalvar gradient pressure was compared with the diameter of the prosthesis and the patient's body surface area. RESULTS: The p-value for the diameter of the prosthesis was 0.81 and 0.59 for the R Index. CONCLUSION: No relation at all was found to help to predict the postoperative pressure gradient, based on the prosthesis size and the body surface area of the patients