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Technical Evaluation of Hybrid Clones of Corymbia spp. to Produce Market Pulp

Paper And Biomaterials 2022年第3期7卷 1-6页

作者： Marcelo Moreira da Costa Ricardo de Carvalho Bittencourt thales augusto pinto coelho nogueira Larissa Soares Silva Weslley Henrique Martins da Silva Sebastião Renato Valverde Gleison augusto Dos Santos Daniel Alexander Fernandes coelho Claudilene Aparecida Alves Pena Department of Forest Sciences Federal University of VicosaVicosaMinas Gerais36570900Brazil Aperam BioEnergia Co. CapelinhaMinas Gerais39680000Brazil

This study presents hybrid clones of Corymbia *** by Aperam BioEnergia as potential substitutes for Eucalyptus wood in the pulp *** biomass of Eucalyptus *** compared with that of Corymbia *** performing modified kraft pulping and basic density *** were made by analyzing their respective mean annual increments of cellulose(MAI_(cel))and specific wood consumption(SWC),estimated using a kappa number of(19±1).The results showed that one of the hybrid clones(Corymbia citriodora×Corymbia torelliana,ID 4)had higher basic wood density,higher screened yield,better MAI_(cel#k19),and lower SWC than the other samples,reaching values of 0.608 t/m^(3),54.1%,24.6 ADt/ha/year(i.e.,air dry ton/hectare/year),and 2.74 m^(3)/ADt,***,clone ID 4 had the highest MAI_(cel)/SWC ratio score(8.98).Given its high forest productivity and low industrial cost compared with other samples,as well as its advantages over Eucalyptus ***,we concluded that clone ID 4 has great potential as an alternative biomass for pulp production.

关键词： Corymbia hybrids modified kraft pulping mean annual increments of cellulose(MAIcel) specific wood consumption(SWC)

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γ-谷氨酰胺转移酶可作为α-干扰素和利巴韦林治疗持续性病毒应答的丙肝患者的独立预测因子

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世界核心医学期刊文摘（胃肠病学分册） 2006年第1期2卷 48-48页

作者： Villela-nogueira C.A. Perez R.M. De Segadas Soares J.A. Moraes coelho H.S. 徐瑞 Rua pinto Guedes 140/501 CEP 20511-320 Rio de Janeiro BrazilDr.

Background: Recently, gamma-glutamyl transferase (GGT) has been investigated as a predictive factor for therapy response in hepatitis C patients, but so far its value in pretreatment screening has not been established. Therefore, this study aimed at evaluating GGT as an independent predictive factor for the response to treatment with interferon-α and ribavirin in hepatitis C virus (HCV)infected patients. Methods: Naive chronic hepatitis C patients undergoing a 6-month follow-up after interferon-alpha and ribavirin therapy had their sustained virologic response (SVR) analyzed according to age, sex, body mass index, GGT levels, genotype, and liver histology by use of a multivariate logistic regression model. Results: Of the 211 patients studied with amean age of 48 ± 10 years, 125 (59% )were males. Overweight was detected in 47% of patients. Genotype 1 was detected in 141 (75% ) of the 187 patients tested. Cirrhosis was present in 67 (32% ). A high pretreatment GGT level was observed in 134 (63% ). SVR was obtained in 84 (40% ) patients. In the final logistic regression model, the variables independently associated with SVR were GGT (P < 0.001), genotype (P < 0.001), and liver histology (P < 0.001). Conclusion: A normal GGT level is an independent predictive factor for SVR in HCV-infected patients and should be considered for pretreatment screening.

关键词：丙肝患者病毒应答 α-干扰素治疗持续性谷氨酰胺转移酶病毒基因型慢性丙肝肝脏组织学组织学

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