Recalcitrant
Mostrando 25-36 de 203 artigos, teses e dissertações.
-
25. Humic substances and its distribution in coffee crop under cover crops and weed control methods
ABSTRACT Humic substances (HS) comprise the passive element in soil organic matter (SOM), and represent one of the soil carbon pools which may be altered by different cover crops and weed control methods. This study aimed to assess HS distribution and characteristics in an experimental coffee crop area subjected to cover crops and cultural, mechanical, and c
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-08
-
26. Phosphorus Forms in Ultisol Submitted to Burning and Trituration of Vegetation in Eastern Amazon
ABSTRACT The use of fire to prepare agricultural areas is a technique still used by small farmers in eastern Amazon. This type of management changes the dynamics of soil nutrients, especially phosphorus, which constitutes the most limiting nutrient for crop production in tropical soils. This study was carried out to evaluate changes in phosphorus forms in an
Rev. Bras. Ciênc. Solo. Publicado em: 26/04/2016
-
27. Analysis for the presence of determinants involved in the transport of mercury across bacterial membrane from polluted water bodies of India
Abstract Mercury, which is ubiquitous and recalcitrant to biodegradation processes, threatens human health by escaping to the environment via various natural and anthropogenic activities. Non-biodegradability of mercury pollutants has necessitated the development and implementation of economic alternatives with promising potential to remove metals from the e
Braz. J. Microbiol.. Publicado em: 2016-03
-
28. Carbon in Humic Fractions of Organic Matter in Soil Treated with Organic Composts under Mango Cultivation
ABSTRACT Soil organic matter (SOM) plays a key role in maintaining the productivity of tropical soils, providing energy and substrate for the biological activity and modifying the physical and chemical characteristics that ensure the maintenance of soil quality and the sustainability of ecosystems. This study assessed the medium-term effect (six years) of th
Rev. Bras. Ciênc. Solo. Publicado em: 2016
-
29. Microneedling in facial recalcitrant melasma: report of a series of 22 cases
Abstract: Melasma is a chronic skin disorder that results in symmetrical, blotchy, brownish facial pigmentation. It is more common in women than in men, it generally starts between 20 and 40 years, and it can lead to considerable embarrassment and distress. The aims of this article is to evaluate the treatment with the microneedling method in 18 female and 4
An. Bras. Dermatol.. Publicado em: 2015-12
-
30. Establishment of post-harvest early-developmental categories for viability maintenance of Araucaria angustifolia seeds
Araucaria angustifolia seeds are recalcitrant, and their metabolism remains high during storage. This research aimed to describe the initiation of germination in A. angustifolia seeds during storage in order to standardize the assessment of physiological quality and to promote seed conservation. Seeds were collected from two populations and stored for 270 da
Acta Bot. Bras.. Publicado em: 2015-12
-
31. Draft genome sequence of Bacillus thuringiensis 147, a Brazilian strain with high insecticidal activity
Bacillus thuringiensisis a ubiquitous Gram-positive and sporulating bacterium. Its crystals and secreted toxins are useful tools against larvae of diverse insect orders and, as a consequence, an alternative to recalcitrant chemical insecticides. We report here the draft genome sequence ofB. thuringiensis147, a strain isolated from Brazil and with high insect
Mem. Inst. Oswaldo Cruz. Publicado em: 2015-09
-
32. Classification and Identification of Petroleum Microorganisms by MALDI-TOF Mass Spectrometry
Indigenous bacteria isolated from a crude oil sample from a deep water reservoir in the Pampo Sul Oilfield (Campos Basin-RJ, Brazil) were previously classified as strains of B. pumilus. However, their enzymatic activities with fluorogenic probes and rates of petroleum biodegradation were completely different. Some of the bacteria depleted n-alkanes, whereas
J. Braz. Chem. Soc.. Publicado em: 2015-03
-
33. Epidermal growth factor receptor (EGFR) mutations in lung cancer: preclinical and clinical data
Lung cancer leads cancer-related mortality worldwide. Non-small-cell lung cancer (NSCLC), the most prevalent subtype of this recalcitrant cancer, is usually diagnosed at advanced stages, and available systemic therapies are mostly palliative. The probing of the NSCLC kinome has identified numerous nonoverlapping driver genomic events, including epidermal gro
Braz J Med Biol Res. Publicado em: 05/09/2014
-
34. Production of fermentable sugars by combined chemo-enzymatic hydrolysis of cellulosic material for bioethanol production
To change the recalcitrant nature of the lignocellulosic material for maximum hydrolysis yield, a comprehensive study was done by using sulphuric acid as an exclusive catalyst for the pretreatment process. The enzymatic digestibility of the biomass [Water Hyacinth: Eichhornia crassipes] after pretreatment was determined by measuring the hydrolysis yield of t
Braz. J. Chem. Eng.. Publicado em: 2014-06
-
35. Role of Modified Endoscopic Medial Maxillectomy in Persistent Chronic Maxillary Sinusitis
Introduction Functional endoscopic sinus surgery has a long-term high rate of success for symptomatic improvement in patients with medically refractory chronic rhinosinusitis. As the popularity of the technique continues to grow, however, so does the population of patients with postsurgical persistent sinus disease, especially in those with a large window
Int. Arch. Otorhinolaryngol.. Publicado em: 2014-04
-
36. The stimulating effects of the addition of glucose on denitrification and removal of recalcitrant organic compounds
A laboratory scale aerobic oxidation ditch combined with an anoxic reactor was conducted to treat wastewater from a chemical industrial park in Tianjin, China. The wastewater exhibited a low biodegradability, and the results of gas chromatography mass spectrometry (GC-MS) analysis showed that some recalcitrant organic components are present in the wastewater
Braz. J. Chem. Eng.. Publicado em: 2014-03