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72篇 您的检索式:作者名="Neves O"
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1Impact of enclosure management on soil properties and microbial biomass in a restored semi-arid rangeland, Kenya显示文摘Rangeland degradation is a serious problem throughout sub-Saharan Africa and its restoration is a challenge for the management of arid and semi-arid areas. In Lake Baringo Basin of Kenya, communities and individual farmers are restoring indigenous vegetation inside enclosures in an effort to combat severe land degradation and address their livelihood problems. This study evaluated the impact of enclosure management on soil properties and microbial biomass, being key indicators of soil ecosystem health. Six reseeded communal enclosures using soil embankments as water-harvesting structures and strictly regulated access were selected, varying in age from 13 to 23 years. In six private enclosures, ranging from 3 to 17 years in age, individual farmers emulated the communal enclosure strategy and restored areas for their exclusive use. Significant decreases in bulk density, and increases in the soil organic carbon, total nitrogen and microbial biomass contents and stocks were found in the enclosures as compared with the degraded open rangeland. In the private enclosures, the impact of rehabilitation on the soil quality was variable, and soil quality was in general lower than that obtained under communal management. The significant increase of absolute stocks of carbon, nitrogen and microbial biomass compared to the degraded open rangeland indicates the potential for the restoration of soil quality through range rehabilitation. Over-sowing with indigenous legume fodder species could improve total nitrogen content in the soil and nutritional value of the pastures as well.Stephen M MUREITHI Ann VERDOODT Charles KK GACHENE Jesse T NJOKA Vivian O WASONGA Stefaan De NEVE Elizabeth MEYERHOFF Eric Van RANST 2014Journal of Arid Land2014,6,5:3
2A2 copper(II) pyridinium salts, from ionic liquids to layered solids to liquid crystals显示文摘Neve F Francescangeli O Crispini A Charmant J 2001Chem Mater2001,13,6:1
3Crystal architecture and mesophase structure of long-chain N-alkylpyridinium tetrachlo- rometallates显示文摘Neve F Francescangeli O Crispini A 2002Inorg Chim Acta2002,338,:1
4Induction of double ovulation in mares using deslorelin acetate显示文摘NAGAO J F NEVES NETO J R PAPA F O 2012Anim Reprod Sci2012,136,12:1
5Down regulaton of IFN-gamma production in patients with recurrent vaginal candidiasis显示文摘CARVALHO L P BACELLAR O NEVES N 2002J Allergy Clin Immol2002,109,1:1
6Phosphorus as an early marker of morbidity and mortality in type 2 chronic kidney disease diabetic patients显示文摘Ana Paula Silva André Fragoso Ana Pinho Nelson Tavares Ana Camacho Marília Faísca Pedro Le?o Neves 2013Journal of Diabetes and Its Complications2013,,4:1
7Bacterial community composition in Brazilian anthrosols and adjacentsoils characterized using culturing and molecular identify- cation显示文摘O'Neill B Grossman J Tsai MT Gomes JE Lehmann J Peterson J Neves E Theis JE 2009Microbial Ecology2009,58,:1
8Modellling the time-temperature relationship in cold injury and effect of high-temperature interruptions on survival in a chill-sensitive collembolan显示文摘Neved O Lavy D Verhoef H A 1998Functional Ecology1998,12,5:1
9Downregulation of IFN- gamma production in patients with recurrent vaginal candidiasis 显示文摘Carvalho LP Bacellar O Neves N 2002Allergy Clin Immunol2002,109,1:1
10The glycoprotein cytoplasmic tail of uukuniemi virus(bunyaviridae) interacts with ribonucleoproteins and is critical for genome packaging显示文摘O verby AK Pettersson RF Neve EPA 0,,:1
11Elderly patients on chronic hemodialysis: Effect of the secondary hyperparathyroidism on the hemoglobin level显示文摘Pedro L. Neves Julio Trivi?o Francisco Casaubon Paulo Rom?o Patricia Mendes Isilda Bexiga Isabel Pinto Viriato Santos Idalécio Bernardo 2002International Urology and Nephrology2002,,1:1
12Effectof treatment on microstructure of commercial and vacuumsintered high speed steels AISI M2 and T15 显示文摘NOGREIRA R A Ribeiro O C S NEVES M D M 2005MaterialsScience Forum2005,,11:1
13Downregulation of IFN-gamma production in patients with recurrent vaginal candidiasis显示文摘Carvalho LP Bacellar O Neves N 2002J Allergy C/in Immunol2002,109,1:1
14Influence of the heat treatment on the microstructure of AISI T15 high speed steel 显示文摘Nogueira R A Ribeiro O C S Das Neves M D M 2003Materials Science Forum2003,,1:1
15Directional effects on NDVI and LAI retrievals from MODIS: A case study in Brazil with soybean显示文摘Fábio Marcelo Breunig Lênio Soares Galv?o Ant?nio Roberto Formaggio José Carlos Neves Epiphanio 2010International Journal of Applied Earth Observations and Geoinformation2010,,1:1
16α,β-amyrin, a natural triterpenoid ameliorates L-arginine-induced acute pancreatitis in rats显示文摘AIM: To study the benef icial effects of triterpene α,β-amyrin and the underlying mechanisms in an experimental pancreatitis model. METHODS: Acute pancreatitis was induced in five groups of rats (n = 8) by L-arginine (2 × 2.5 g/kg, intraperitoneal, 1 h apart) and 1 h later, they received a single oral dose of α,β-amyrin (10, 30 and 100 mg/kg),methylprednisolone (30 mg/kg) and vehicle (3% Tween 80). A saline (0.9% NaCl) treated group served as a normal control. Efficacy was assessed at 24 h by determination of serum levels of amylase, lipase and proinflammatory cytokines [tumor necrosis factor (TNF)-α and interleukin (IL)-6], pancreatic myeloperoxidase (MPO) activity, lipid peroxidation [thiobarbituric acid reactive substances (TBARS)], nitrate/nitrite levels, and the wet weight/body weight ratio. Tissue histology and the immunoreactivity for TNF-α and inducible nitric oxide synthetase (iNOS) were performed. RESULTS: α,β-amyrin and methylprednisolone treatments significantly (P < 0.05) attenuated the L-arginine-induced increases in pancreatic wet weight/body weight ratio, and decreased the serum levels of amylase and lipase, and TNF-α and IL-6, as compared to the vehicle control. Also, pancreatic levels of MPO activity, TBARS, and nitrate/nitrite were signifi cantly lower. Histological f indings and TNF-α and iNOS immunostaining further confirmed the amelioration of pancreatic injury by α,β-amyrin. CONCLUSION: α,β-amyrin has the potential to combat acute pancreatitis by acting as an anti-in? ammatory and antioxidant agent.Caroline Mouro Melo Karine Maria Martins Bezerra Carvalho Julliana Catharina de Sousa Neves Talita Cavalcante Morais Vietla Satyanarayana Rao Flávia Almeida Santos Gerly Anne de Castro Brito Mariana Helena Chaves 2010World Journal of Gastroenterology2010,16,34:1
17Tissue specific characterisation of Lim-kinase 1 expression during mouse embryogenesis显示文摘LINDSTR(O)M NO NEVES C MCLNTOSH R 2011Gene Expr Patterns2011,11,34:1
18Chromosomal locus rearrangements are a rapid response to formation of the allotetraploid Arabidopsis suecica genome显示文摘Pontes O Neves N Silva M 0,,:1
19Crystal architecture and mesophase structure of long - chain N - alkylpyridinium tetrachlorometallates 显示文摘Neve F Francescangeli O Crispini A 2002Inorganica Chimica Acta2002,338,10:1
20Transfection of oral cancer cells mediated by transferrin-associated lipoplexes:mechanisms of cell death induced by herpes simplex virus thymidine kinase/ganciclovir therapy显示文摘Neves SS Sarmento-Ribeiro AB Sim(o)es SP 2006Biochim Biophys Acta2006,1758,11:1
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