338 research outputs found
Mild And Moderate Extraction Methods To Assess Potentially Available Soil Organic Nitrogen
The use of chemical methods to assess the soil organic nitrogen (N) potentially available to plants is not a common practice in Brazil. However, associated with others, this tool might improve efficiency in the use of waste and nitrogen fertilizers. In our study, chemical methods were tested to assess potentially available soil N in samples of 17 representative soils of the western plateau of the state of São Paulo (10 Oxisols and 7 Ultisols). Available soil N was extracted from the collected soil samples using moderate (ISNT-Illinois Soil Nitrogen Test) and mild (hot water and heated solutions of 2 mol L-1 KCl and 0.01 mol L-1 CaCl2) extraction methods. The levels of potentially available N obtained from these chemical methods were correlated with dry matter (DM) and N uptake (Nup) by corn plants grown in pots in a greenhouse experiment carried out with the same 17 soil samples. The ISNT method showed the highest available N extraction capacity, whereas hot water showed the lowest capacity, followed closely by the hot 0.01 mol L-1 CaCl2 solution. Despite the differences among the quantities of available N extracted, the methods correlated with each other and with DM and Nup, but the values from the ISNT method showed the lowest correlation with plant variables (rDM = 0.67** and rNup = 0.81**). Procedures of extraction with water or 0.01 mol L-1 CaCl2 heated for 16 h, and 2 mol L-1 KCl heated for 4 h, resulted in similar correlation values (r) with plant DM and Nup. Thus, water (rDM = 0.77** and rNup = 0.90**) and 0.01 mol L-1 CaCl2 (rDM = 0.82** and rNup = 0.93**) heated for 16 h can be recommended as the best options for N extraction. considering the possibility for predicting N availability, lower generation of waste, and lower cost of analysis. © 2016, Revista Brasileira de Ciencia do Solo. All rights reserved.4
Aligning enterprise architecture with strategic planning
Strategic planning improves both the financial and behavioral performance of an enterprise. It helps the enterprise set priorities, focus capabilities and resources, strengthen operations, ensure that stakeholders are working toward common goals and assess and adjust the enterprise’s direction. Strategic planning is currently not explicitly represented in EA, although it motivates enterprise architecture choices. This paper studies strategic planning approaches and discusses their potential relation with EA. The paper focuses on how EA can contribute to strategic planning, discussing requirements on EA extensions to support strategic planning and pointing to solutions. A general approach to support strategic planning using EA should mutually benefit the practices of strategic planning and EA
The classification of chronic osteomyelitis
As a result of the heterogeneous nature of chronic osteomyelitis and the complexity of management strategy
formulation, more than ten classification systems have been published over the past 40 years. Historical systems,
used in the classification of chronic osteomyelitis, remain useful in terms of the description of the nature and
origin of the disease. They fail, however, to provide the user with sufficient information in order to select the
appropriate treatment strategy. As a result, more comprehensive classifications have subsequently been
proposed. Accurate host stratification, in particular, is considered to be essential. The physiological status of the
host serves as the primary indicator of the patient’s ability to effect healing of bone and soft tissues, as well as
their ability to launch an effective immune response in conjunction with antibiotic therapy. Despite the development
of more comprehensive classification systems, many shortcomings remain within the domain of disease
classification and host stratification.http://www.scielo.org.za/scielo.php?script=sci_serial&pid=1681-150X&lng=pt&nrm=isoam201
The management of chronic osteomyelitis : Part I – Diagnostic work-up and surgical principles
To date, no evidence-based guidelines for the treatment of chronic osteomyelitis exist. Owing to certain similarities,
treatment philosophies applicable to musculoskeletal tumour surgery may be applied in the management of chronic
osteomyelitis. This novel approach not only reinforces certain important treatment principles, but may also allow for
improved patient selection as surgical margins may be customised according to relevant host factors. When distilled
to its most elementary level, management is based on a choice between either a palliative or curative approach.
Unfortunately there are currently no objective criteria to guide selection of the most appropriate treatment pathway.
The pre-operative diagnostic work-up should be tailored according to the relevant objective, albeit confirming the
clinical suspicion of the presence of infection, host stratification, anatomical disease classification, pre-operative
planning or post-operative follow-up. MRI and PET-CT are emerging as the imaging modalities of choice.
Interleukin-6, in combination with CRP, has been shown to have excellent sensitivity in the diagnosis of
implant-associated infection. Molecular methods are growing rapidly as the method of choice in pathogen detection.
Chronic osteomyelitis, as is the case with musculoskeletal tumours, can only be eradicated through complete
resection of all infected bone. Chemotherapy, in the form of antibiotics, only plays an adjuvant role. Dead space
management is essential following debridement, and the appropriate strategy should be selected according to the
anatomical nature of the disease. Provision of adequate bony stability is crucial as it promotes revascularisation and
maximisation of the host’s immune response. Although there is currently a variety of fixation options available,
external fixation is generally preferred.South African Orthopaedic Associationhttp://www.saoa.org.za/publications/saojam201
The outcome of treatment of chronic osteomyelitis according to an integrated approach
Previous classification systems of chronic
osteomyelitis have failed to provide objective and pragmatic
guidelines for selection of the appropriate treatment
strategy. In this study, we assessed the short-term treatment
outcome in adult patients with long-bone chronic
osteomyelitis prospectively where a modified host classification
system was integrated with treatment strategy
selection through a novel management algorithm. Twentysix
of the 28 enrolled patients were available for follow-up
at a minimum of 12 months. The median patient age of was
36.5 years (range 18–72 years). Fourteen patients (54 %)
were managed palliatively, and 11 patients (42 %) were
managed through the implementation of a curative treatment
strategy. One patient required alternative treatment in
the form of an amputation. The overall success rate was
96.2 % (95 % CI 80.4–99.9 %) at a minimum of
12-months follow-up. Remission was achieved in all [11/
11] patients treated curatively (one-sided 95 % CI
73.5–100.0 %). Palliative treatment was successful in
92.9 % [13/14] of cases (95 % CI 66.1–99.9 %). In
patients with lower limb involvement, there was a statistically
significant improvement of 28.3 (95 % CI 21.0–35.7; SD 17.0) in the AAOS Lower Limb Outcomes Instrument score (p value\0.001). The integrated
approach proposed in this study appears a useful guideline
to the management of chronic osteomyelitis of long bones
in adult patients in the developing world. Further investigation
is required to validate the approach, and additional
development of the algorithm may be required in order to
render it useful in other clinical environments.The corresponding author has received a research
grant from the South African Orthopaedic Association in support of
this research project.http://www.springer.commedicine/orthopedics/journal/11751am2016Orthopaedic Surger
Effect of alendronate on endochondral ossification in mandibular condyles of growing rats
The replacement of the calcified cartilage by bone tissue during the endochondral ossification of the mandibular condyle is dependent of the resorbing activity of osteoclats. After partial resorption, calcified cartilage septa are covered by a primary bone matrix secreted by osteoblasts. Osteoadherin (OSAD) is a small proteoglycan present in bone matrix but absent in cartilage during the endochondral ossification. The aim of this study was to analyze the effect of alendronate, a drug known to inhibit bone resorption by osteoclasts, on the endochondral ossification of the mandibular condyle of young rats, by evaluating the distribution of osteoclasts and the presence of OSAD in the bone matrix deposited. Wistar newborn rats (n=45) received daily injections of alendronate (n=27) or sterile saline solution as control (n=18) from the day of birth until the ages of 4, 14 and 30 days. At the days mentioned, the mandibular condyles were collected and processed for transmission electron microscopy analysis. Specimens were also submitted to tartrate resistant acid phosphatase (TRAP) histochemistry and ultrastructural immunodetection of OSAD. Alendronate treatment did not impede the recruitment and fusion of osteoclasts at the ossification zone during condyle growth, but they presented inactivated phenotype. The trabeculae at the ossification area consisted of cartilage matrix covered by a layer of primary bone matrix that was immunopositive to OSAD at all time points studied. Apparently, alendronate impeded the removal of calcified cartilage and maturation of bone trabeculae in the mandibular ramus, while in controls they occurred normally. These findings highlight for giving attention to the potential side-effects of bisphosphonates administered to young patients once it may represent a risk of disturbing maxillofacial development
Complete Genome Sequence Of A Vaccinal Newcastle Disease Virus Strain Isolated From An Owl (rhinoptynx Clamator)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)A Newcastle disease virus (NDV) was isolated in chicken embryonated eggs after detection by real-time reverse transcription- PCR (RRT-PCR) from a captive owl swab. The complete genome sequence of APMV-1/Rhinoptynx clamator/Brazil/22516/2009 (APMV-1, avian paramyxovirus type 1) was obtained using Illumina sequencing. Phylogenetic analysis of the complete genome classified the isolate within NDV class II genotype II. © 2016 Van Borm et al.46CNPq, Conselho Nacional de Desenvolvimento Científico e TecnológicoConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq
Produção da amoreira-preta ‘Tupy’ sob diferentes épocas de poda.
A amora-preta é uma opção importante para fruticultura paranaense, porém não há informações a respeito do cultivo dessa frutífera nas condições subtropicais do Estado. O objetivo deste trabalho foi avaliar a influência da época de poda na produção da amoreira-preta ‘Tupy’. O trabalho foi realizado em um pomar comercial, conduzido em sistema agroecológico. O delineamento experimental foi em blocos ao acaso, com quatro blocos e seis tratamentos (podas quinzenais realizadas durante o inverno). Em cada parcela, constituída de três plantas úteis, foram coletados dados fenológicos, produtivos e físico-químicos no ciclo de produção 2008/09 e
2009/10. Podas efetuadas no início de julho são as mais indicadas e podas tardias podem prejudicar o desempenho produtivo das amoreiras-pretas ‘Tupy’ no oeste do Paraná
Fenologia e produção de cultivares de amoreira-preta em sistema agroecológico.
A amoreira-preta é uma espécie de exploração recente no Brasil. Nos últimos ano, s tem sido dada especial
atenção ao cultivo orgânico ou agroecológico dessa espécie. O objetivo deste trabalho foi verificar o comportamento fenológico e produtivo das cultivares de amora-preta ‘Tupy’, ‘Guarani’, ‘Caingangue’, ‘Cherokee’ e ‘Brazos’, e das seleções denominadas ‘seleção 97’ e ‘seleção 787’ na região de Pelotas,
Rio Grande do Sul(RS), em sistema agroecológico. O trabalho foi realizado na Estação Experimental de Cascata (EEC), Embrapa Clima Temperado. As plantas foram dispostas no pomar, em blocos varietais aleatórios, com 10 plantas por genótipo, perfazendo quatro linhas com duas cultivares por linha. Foram observadas as datas de início da floração e fim da floração, início e final de colheita, massa (gramas) e número de frutos por planta, teor de sólidos solúveis totais (ºBrix), produção média por planta (g pl-1) e produtividade estimada por hectare (kg ha-1). Para análise das características dos frutos, a média de cada ano de avaliação (três) foi considerada como uma repetição. Na região de Pelotas-RS, é viável o cultivo agroecológico de amoreira-preta. Não há diferenças de produção, produtividade, número de frutos e teores de sólidos solúveis totais entre os genótipos estudados
Semi-industrial development of nutritious and healthy seafood dishes from sustainable species
This study aimed to devise innovative, tailor-made, appealing, tasty and semi-industrialized dishes, using sustainable and under-utilized seafood species (bib, common dab, common carp, blue mussel and blue whiting), that can meet the specific nutritional and functional needs of children (8-10-years), pregnant women (20-40-years) and seniors (≥60-years). Hence, contests were organised among cooking schools from 6 European countries and the best recipes/dishes were reformulated, semi-industrially produced and chemically and microbiologically evaluated. The dishes intended for: (i) children and pregnant women had EPA + DHA and I levels that reached the target quantities, supporting the claim as “high in I”; and (ii) seniors were “high in protein” (24.8%-Soup_S and 34.0%-Balls_S of the energy was provided by proteins), “high in vitamin B12”, and had Na contents (≤0.4%) below the defined limit. All dishes reached the vitamin D target value. Sausages_C, Roulade_P, Fillet_P and Balls_S had a well-balanced protein/fat ratio. Roulade_P presented the highest n-3 PUFA/n-6 PUFA ratio (3.3), while Sausages_C the lowest SFA/UNS ratio (0.2). Dishes were considered safe based on different parameters (e.g. Hg-T, PBDEs, Escherichia coli). All represent dietary sources contributing to meet the reference intakes of target nutrients (33->100%), providing valuable options to overcome nutritional and functional imbalances of the three groups.This project has received funding from the European Union's Horizon 2020 research and innovation programme under Grant Agreement no. 773400 (SEAFOODTOMORROW). This work was also supported by the Spanish Ministry of Science and Innovation (Project CEX 2018-000794-S), the Generalitat de Catalunya (Consolidated Research Group Water and Soil Quality Unit 2017 SGR 1404) and Fundação para a Ciência e a Tecnologia (FCT)/Ministério da Ciência, Tecnologia e Ensino Superior (MCTES) through national funds (UID/QUI/50006/2019, UIDB/50006/2020, UIDP/50006/2020, UIDB/04423/2020 and UIDP/04423/2020). The authors also thank FCT and the European Union's H2020 Research and Innovation Programme for funding through the project Systemic - An integrated approach to the challenge of sustainable food systems: adaptive and mitigatory strategies to address climate change and malnutrition. Sara Cunha also acknowledges FCT for the IF/01616/2015 contract. Biotage is acknowledged for providing SPE cartridges and Bekolut for the QuEChERS kits. This output reflects the views only of the author(s), and the European Union cannot be held responsible for any use that may be made of the information contained therein
- …