Spectroscopic characterization of humic and fulvic acids in soil aggregates, Brazil.

Agricultural management methods affect organic compounds in the soil. The aim of this study was to characterize humic and fulvic acids using infrared spectroscopy and nuclear magnetic resonance (NMR) in aggregates collected from areas under different crop and soil management systems. Soil samples were collected at depths of 0.

Soil aggregation and carbon stabilization in burn and no-burn sugarcane management systems.

Retaining sugarcane straw over the soil after harvesting can improve soil structure and increase soil carbon stabilization, mainly in macroaggregates. We evaluated the carbon content in the aggregate classes in areas under burn and no-burn (adopted for five years) sugarcane management systems, focusing on the superficial layer (0.00-0.

Application of Landfill Leachate Improves Wheat Nutrition and Yield but Has Minor Effects on Soil Properties.

Landfill leachates, which are potential pollutants, may also carry significant amounts of nutrients that can be recycled by plants. We assessed the nutritional status and yield of wheat ( L.) and properties of a Rhodic Kandiudult soil (depths of 0-10, 10-20, 20-40, and 40-60 cm) after 11 applications of landfill leachate over 4 yr.

Plastic surgery in chest wall reconstruction: relevant aspects - case series.

Objective: to discuss the participation of Plastic Surgery in the reconstruction of the chest wall, highlighting relevant aspects of interdisciplinaryness.

Methods: we analyzed charts from 20 patients who underwent extensive resection of the thoracic integument, between 2000 and 2014, recording the indication of resection, the extent and depth of the raw areas, types of reconstructions performed and complications.

Results: among the 20 patients, averaging 55 years old, five were males and 15 females.

Postbariatric buttock contouring with dermolipectomy and gluteal implants.

The authors present their experience with the use of silicone implants in the buttocks after massive weight loss. The procedure is used in combination with gluteal dermolipectomy with or without dermal fat flaps. This report highlights the simplified method of identifying the gluteal muscles, recommends using the superior margin of the gluteus maximus muscle to access the space for implant placement, and prescribes placement of the implants in either the submuscular or the intramuscular space.

Tissue expansion in burn sequelae repair.

Burns may cause emotional, aesthetic and functional sequelae. Extended or hypertrophic scars are usually difficult to repair using local tissues, and the use of skin grafts may cause further injuries to the donor sites. The use of tissue expanders may offer a better option in the treatment of burn sequelae.