金太阳杏抗旱增产栽培

金太阳杏果实圆形,果面金黄色,外观美丽,花期耐低温,极丰产。1999年2月西峡县林业局从山东果树研究所引种,用凯特杏作授粉树,建立8个试验园。根据金太阳杏生长习性,结合山区干旱缺水的实际情况,采取合理密植、     

甘肃省森林公安“五化”建设推进会在庆阳召开

2011年3月30日,甘肃省森林公安"五化"建设推进会在庆阳市顺利召开。会议全面总结了全省森林公安"十一五"工作,深入分析森林公安当前面临的形势和任务,安排部署"十二五"森林公安工作,同时观摩借鉴庆阳市森林公安局的成功经验和做法,继往开来,统筹谋划,强势推进全省森林公安"五化"建设工作。     

导热油炉电热管阵列故障自诊断及容障运行的实现

介绍了导热油炉加热管阵列故障在检修工作中故障点判定的繁琐、耗时及对生产、安全的不利影响,提出用单片机嵌入其控制系统中作在线自动诊断及容障运行的实现方法。     

农药加“消抗液”防治棉铃虫效果好

“消抗液”是北京雷力农用化学有限公司推出的除虫助剂,在1993年棉铃虫四代发生盛卵期间,我们组织了田间药效试验,按照常规统一设单用药剂处理和药液加与原药等量的消抗液处理及自然对照处理。从松滋、洪湖、江北农场三个试验点的结果来看,加入“消抗液”后,比药剂单用防效均明显提高,具体情况如下:     

Telomerase activity in clinically normal dogs and dogs with malignant lymphoma

OBJECTIVES: To determine whether telomerase activity was present in lymph nodes, buffy coat, and serum samples from dogs with malignant lymphoma (ML) and in liver, lymph node, buffy coat, and serum samples from clinically normal dogs SAMPLE POPULATION: Tissue specimens and blood samples were obtained from 11 clinically normal adult dogs (age range, 1 to 4 years) and 14 client-owned dogs with ML. PROCEDURE: The telomere repeat amplification protocol assay was used to quantify telomerase activity in the tissues from clinically normal dogs and dogs with ML. RESULTS: Of 11 clinically normal dogs, 8 had lymph node samples, 5 had liver samples, and 1 had buffy coat samples with detectable telomerase activity. None of the serum samples from the clinically normal dogs had detectable telomerase activity. Of 14 dogs with ML, 9 had lymph node samples, 3 had buffy coat samples, and 1 had serum samples with measurable telomerase activity. CONCLUSIONS AND CLINICAL RELEVANCE: Telomerase activity was not specific to tumor cells and overlapped with that found in cells from clinically normal dogs. Telomerase activity in neoplastic lymph nodes was not substantially different from that found in lymph nodes from clinically normal dogs. The determination of telomerase activity cannot be used as a sole diagnostic test for cancer. Therapeutic modalities directed toward the telomerase enzyme may not be feasible in dogs, because somatic tissues from clinically normal dogs possess variable amounts of telomerase activity.     

Constitutive expression of types 1 and 2 cytokines by alveolar macrophages from feline immunodeficiency virus-infected cats

Evidence suggests that feline immunodeficiency virus (FIV), causes pulmonary immunodeficiency. The overall objective of this study was to explore FIV-induced alterations in cell counts and cytokine gene expression in the pulmonary compartment during the acute stage infection. Bronchoalveolar lavage (BAL) cells were collected from FIV-infected and control cats at 0, 4, 10, and 16 weeks post-FIV infection for phenotype and cytokine analysis. The major change in BAL cellular populations following FIV-infection was the development of a neutrophilia. Total BAL cell counts and relative numbers of alveolar macrophages (AM), eosinophils, and lymphocytes remained similar in both groups. The RT-qcPCR analyses of AM purified from BAL showed constitutive expression of TNFalpha, IL6 and IL10 mRNAs that peaked during the acute stage of infection then declined. The TNFalpha and IL6 bioactive protein secretion showed a similar response. In contrast, IFNgamma expression increased progressively with time after infection and paralleled a progressive increase in FIV-gag mRNA in AM. The IL12 p40 expression also differed from the other cytokines in that there was a progressive decrease in the number of cats with AM IL12 expression following FIV infection. Infection of AM in vitro with FIV also caused an increase in TNFalpha and IL6 mRNA and bioactive protein suggesting that the increased cytokine response by AM following infection of cats with FIV is an intrinsic characteristic of FIV-infected AM. In summary, pulmonary immune changes seen in FIV-infected cats are similar to those seen in HIV-infected human patients.     

杀虫剂涂茎及喷雾防治棉蚜的研究

本文根据敦煌的实际情况，推广了苗期涂茎及花龄期喷雾的措施：苗期选用４种内吸剂涂茎后第１１天的相对防效均在９０％以上；花龄期在棉花上中下部位涂茎防蚜效果不佳；通过喷雾，筛选出了适宜敦煌地区使用的４种高效防蚜药剂。