19 research outputs found
A REVOLUÇÃO VERDE E SEUS IMPACTOS NA SAÚDE HUMANA COM A MODERNIZAÇÃO DA AGRICULTURA
O artigo registra os cursos do congresso internacional de inovação tecnológica nas ciências da saúde: a sustentabilidade das práticas integrativas a agroecologia, mais especificamente o minicurso A revolução verde e seus impactos na saúde humana com a modernização da agricultura. O minicurso tratou o papel do homem como componente incontestável do meio ambiente e suas ações na sociedade. O evento aconteceu de 15 a 18 de novembro de 2017 no IFBA SAJ sob a direção da Universidade Federal do Recôncavo da Bahia.
Palavras-chave: Revolução verde. Saúde. Meio ambiente. Moviment
Does combining estradiol cypionate and GnRH for ovulation induction in recipient cows increase pregnancy rate after timed embryo transfer?
Estradiol cypionate (EC) or GnRH have been widely used for ovulation induction in timed embryo transfer (TET). EC administration increases the proportion of cows that show estrus, whereas GnRH promotes more synchronized ovulations. The aim of the present study was to evaluate the potential beneficial effects of combining EC and GnRH in TET. In experiment 1, no difference was observed on serum progesterone concentrations on Day 6 and 13 after GnRH treatment between GnRH and EC+GnRH groups. In experiment 2, pregnancy per embryo transfer (P/ET) did not differ (p = 0.69) between GnRH (62.8%) and EC+GnRH (58.7%) groups. In conclusion, combining EC and GnRH for ovulation induction does not increase progesterone secretion and pregnancy rate after TET in cattle
Eficiência de Malhas Amostrais na Caracterização da Variabilidade Espacial de Atributos Físicos do Solo
O avanço do conhecimento da variabilidade espacial dos atributos do solo, por meio do uso de ferramentas da
agricultura de precisão e geoestatística, tem sido considerado como uma estratégia de manejo que visa maximizar a
produtividade agrícola. Objetivo foi avaliar a eficiência de malhas amostrais na caracterização da variabilidade espacial
dos atributos físicos do solo na cultura do fumo. O trabalho foi desenvolvido na Fazenda Capivari, no município de
Governador Mangabeira, Bahia. Avaliou-se: resistência do solo à penetração de raízes e condutividade hidráulica em
duas malhas regulares, de 15x15 e 25x25 m, georreferenciadas. A resistência à penetração foi avaliada mediante o uso de
penetrômetro de impacto. A determinação da condutividade hidráulica foi realizada por meio de ensaios em permeâmetro
de carga constante. Os valores de resistência à penetração da malha 1 (15x15m) concentraram-se na faixa de pouca
limitação a penetração de raízes, enquanto que na malha 2 (25x25m) no perfil abaixo dos 0,40 m valores superiores a
2,6 MPa, o que já implica em algumas limitações à penetração de raízes. Os dados demonstram que a malha amostral de
maior dimensão apresenta grande potencial em detectar diferentes escalas de variabilidade espacial dos atributos físicos
avaliados em Latossolos sob cultivo de fumo
The use of radiotherapy in the treatment of oral cancer / O uso da radioterapia no tratamento do câncer oral
Most of the development of neoplasms has epithelial origin, and the most frequent for oral cancer is squamous cell carcinoma (SCC), of which one should be aware of the extrinsic and intrinsic factors that may be relevant in the development of precancerous lesions. The diagnosis of this type of cancer is made with clinical, histopathological and imaging exams. Thus, this ressearch was carried out with the objetive to address the treatment of oral cancer through radiotherapy, identifying different techniques for the use of radiation and establishing measures that help in the control of radiation beams in the face of the exposed pathology. This study had as source articles published in the electronic databases LILACS and PubMed, between 1996 and 2020 through the descriptors: “radiotherapy", "oral cancer”. Radiotherapy for oral cancer can be performed in an adjuvant or neoadjuvant way, providing radiation by teletherapy through techniques known as Conventional Radiotherapy, Conformational Radiotherapy, and Intensity-Modulated Radiation Therapy. Although radiotherapy is capable to eliminate tumor cells, abnormalities induced by radiation may appear inside the oral cavity, and these abnormalities can be minimized by controlling radiation doses distribution in addition to significant protection of adjacent healthy tissues through the use of intraoral devices, contributing to the improvement of the patient's quality of life.
THE HEALTH SCHOOL PROGRAMME: A HEALTH PROMOTION STRATEGY IN PRIMARY CARE IN BRAZIL
Introduction: the Health School Programme (HSP) should be understood as a permanent development process. In this context, the actions of a policy aimed at children and adolescentsare paramount in the HSP. Objective: to identify and describe the actions developed by the Family Health Group in the HSP, from the National Programme for ImprovingAccess and Quality of Primary Care (PIPCAQ). Methods: this cross-sectional research used secondary data collected fromthe 17,202 groups who joined PIPCAQ in 2012. Results: all regions showed significant results concerning the execution of school activities. the Northern region was the one that performed most school actions (80.5%), followed by the Northeast, Midwest, South and Southeast, respectively. However, some items, such as professional training in education and health work need to be streng the ned. Conclusion: HSP in Brazil has mobilised significant actions, even though it has not happened in homogeneously in all Brazilian regions
Rationale, study design, and analysis plan of the Alveolar Recruitment for ARDS Trial (ART): Study protocol for a randomized controlled trial
Background: Acute respiratory distress syndrome (ARDS) is associated with high in-hospital mortality. Alveolar recruitment followed by ventilation at optimal titrated PEEP may reduce ventilator-induced lung injury and improve oxygenation in patients with ARDS, but the effects on mortality and other clinical outcomes remain unknown. This article reports the rationale, study design, and analysis plan of the Alveolar Recruitment for ARDS Trial (ART). Methods/Design: ART is a pragmatic, multicenter, randomized (concealed), controlled trial, which aims to determine if maximum stepwise alveolar recruitment associated with PEEP titration is able to increase 28-day survival in patients with ARDS compared to conventional treatment (ARDSNet strategy). We will enroll adult patients with ARDS of less than 72 h duration. The intervention group will receive an alveolar recruitment maneuver, with stepwise increases of PEEP achieving 45 cmH(2)O and peak pressure of 60 cmH2O, followed by ventilation with optimal PEEP titrated according to the static compliance of the respiratory system. In the control group, mechanical ventilation will follow a conventional protocol (ARDSNet). In both groups, we will use controlled volume mode with low tidal volumes (4 to 6 mL/kg of predicted body weight) and targeting plateau pressure <= 30 cmH2O. The primary outcome is 28-day survival, and the secondary outcomes are: length of ICU stay; length of hospital stay; pneumothorax requiring chest tube during first 7 days; barotrauma during first 7 days; mechanical ventilation-free days from days 1 to 28; ICU, in-hospital, and 6-month survival. ART is an event-guided trial planned to last until 520 events (deaths within 28 days) are observed. These events allow detection of a hazard ratio of 0.75, with 90% power and two-tailed type I error of 5%. All analysis will follow the intention-to-treat principle. Discussion: If the ART strategy with maximum recruitment and PEEP titration improves 28-day survival, this will represent a notable advance to the care of ARDS patients. Conversely, if the ART strategy is similar or inferior to the current evidence-based strategy (ARDSNet), this should also change current practice as many institutions routinely employ recruitment maneuvers and set PEEP levels according to some titration method.Hospital do Coracao (HCor) as part of the Program 'Hospitais de Excelencia a Servico do SUS (PROADI-SUS)'Brazilian Ministry of Healt
Impact of short-term land-use change on soil organic carbon dynamics in transitional agro-ecosystems: a case study in the Brazilian Cerrado
Agricultural expansion directly impacts the dynamics of organic carbon (C) in the soil. After land use change, agricultural systems with greater resilience of soil C stocks could be preferentially adopted. The objective of the present study was to determine the impact of short-term conversion of grassland into different agricultural systems on soil organic C stocks and their resilience in a site-specific region of Brazilian Cerrado in the State of Goiás. The following systems were evaluated: pasture (PAST), no-tillage system (NT), four organic production systems (ORG) at different years of cultivation (2, 6, 8 and 10 years), and a continuous monoculture corn cropping system (CC). An area of native Cerrado (‘Savanna’, CE) was selected and sampled for use as a steady state reference point. Resilience of soil organic C was measured based on calculation of the C resilience index and C management index. Soil C stocks in the 0-0.40 m depth varied from 61 to 111 Mg ha−1 and were reduced by 33% when converting from CE to cultivation regardless of management system. The labile C contents varied from 425 to 900 mg kg−1, and increased when PAST soils were converted to ORG cultivation. The highest values of C resilience and management indexes occurred in the ORG-2 and ORG-6 soils, showing that organic systems can recover organic C levels in the soil faster than other agricultural systems. On the other hand, no-tillage system when converted from pasture presents the lowest potential of soil C resilience in short-term in the site-specific conditions of studied Cerrado of Goiás State
ATLANTIC BIRD TRAITS: a data set of bird morphological traits from the Atlantic forests of South America
Scientists have long been trying to understand why the Neotropical region holds the highest diversity of birds on Earth. Recently, there has been increased interest in morphological variation between and within species, and in how climate, topography, and anthropogenic pressures may explain and affect phenotypic variation. Because morphological data are not always available for many species at the local or regional scale, we are limited in our understanding of intra- and interspecies spatial morphological variation. Here, we present the ATLANTIC BIRD TRAITS, a data set that includes measurements of up to 44 morphological traits in 67,197 bird records from 2,790 populations distributed throughout the Atlantic forests of South America. This data set comprises information, compiled over two centuries (1820–2018), for 711 bird species, which represent 80% of all known bird diversity in the Atlantic Forest. Among the most commonly reported traits are sex (n = 65,717), age (n = 63,852), body mass (n = 58,768), flight molt presence (n = 44,941), molt presence (n = 44,847), body molt presence (n = 44,606), tail length (n = 43,005), reproductive stage (n = 42,588), bill length (n = 37,409), body length (n = 28,394), right wing length (n = 21,950), tarsus length (n = 20,342), and wing length (n = 18,071). The most frequently recorded species are Chiroxiphia caudata (n = 1,837), Turdus albicollis (n = 1,658), Trichothraupis melanops (n = 1,468), Turdus leucomelas (n = 1,436), and Basileuterus culicivorus (n = 1,384). The species recorded in the greatest number of sampling localities are Basileuterus culicivorus (n = 243), Trichothraupis melanops (n = 242), Chiroxiphia caudata (n = 210), Platyrinchus mystaceus (n = 208), and Turdus rufiventris (n = 191). ATLANTIC BIRD TRAITS (ABT) is the most comprehensive data set on measurements of bird morphological traits found in a biodiversity hotspot; it provides data for basic and applied research at multiple scales, from individual to community, and from the local to the macroecological perspectives. No copyright or proprietary restrictions are associated with the use of this data set. Please cite this data paper when the data are used in publications or teaching and educational activities. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ
ATLANTIC BIRD TRAITS
Scientists have long been trying to understand why the Neotropical region holds the highest diversity of birds on Earth. Recently, there has been increased interest in morphological variation between and within species, and in how climate, topography, and anthropogenic pressures may explain and affect phenotypic variation. Because morphological data are not always available for many species at the local or regional scale, we are limited in our understanding of intra- and interspecies spatial morphological variation. Here, we present the ATLANTIC BIRD TRAITS, a data set that includes measurements of up to 44 morphological traits in 67,197 bird records from 2,790 populations distributed throughout the Atlantic forests of South America. This data set comprises information, compiled over two centuries (1820–2018), for 711 bird species, which represent 80% of all known bird diversity in the Atlantic Forest. Among the most commonly reported traits are sex (n = 65,717), age (n = 63,852), body mass (n = 58,768), flight molt presence (n = 44,941), molt presence (n = 44,847), body molt presence (n = 44,606), tail length (n = 43,005), reproductive stage (n = 42,588), bill length (n = 37,409), body length (n = 28,394), right wing length (n = 21,950), tarsus length (n = 20,342), and wing length (n = 18,071). The most frequently recorded species are Chiroxiphia caudata (n = 1,837), Turdus albicollis (n = 1,658), Trichothraupis melanops (n = 1,468), Turdus leucomelas (n = 1,436), and Basileuterus culicivorus (n = 1,384). The species recorded in the greatest number of sampling localities are Basileuterus culicivorus (n = 243), Trichothraupis melanops (n = 242), Chiroxiphia caudata (n = 210), Platyrinchus mystaceus (n = 208), and Turdus rufiventris (n = 191). ATLANTIC BIRD TRAITS (ABT) is the most comprehensive data set on measurements of bird morphological traits found in a biodiversity hotspot; it provides data for basic and applied research at multiple scales, from individual to community, and from the local to the macroecological perspectives. No copyright or proprietary restrictions are associated with the use of this data set. Please cite this data paper when the data are used in publications or teaching and educational activities. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ