“疯草”中苦马豆素解毒制剂及抗肿瘤应用研究进展

"疯草"中的主要毒性成分苦马豆素,属于一种多羟基取代吲哚兹定生物碱。其能抑制动物机体中的α-甘露糖苷酶,造成人和动物中毒;同时又具有极强的抗肿瘤活性,而对人有益。全文概述了苦马豆素的生化特性、中毒机理、解毒制剂研制以及抗肿瘤作用的研究进展,以期为预防治疗苦马豆素中毒以及合理开发利用苦马豆素提供参考。     

Detection of a gonadotropin in rabbit blastocyst before implantation

A gonadotropin similar to human chorionic gonadotropin or luteinizing hormone has been demonstrated in rabbit blastocyst prior to implantation. The gonadotropin has been detected by a radioreceptor assay for human chorionic gonadotropin with the use of the plasma membranes of bovine corpora lutea obtained during the first trimester of pregnancy. The concentrations of the human chorionic gonadotropin or luteinizing hormone per milliliter of blastocyst fluid were tenfold higher than those in the blood of pregnant rabbits on days 5 and 6 after mating.     

Radioreceptor assay of human chorionic gonadotropin: detection of early pregnancy

A rapid, sensitive, and specific radioreceptor assay for the determination of human chorionic gonadotropin and luteinizing hormone in plasma is described. Plasma membranes of bovine corpora lutea of early pregnancy, which bind biologically active labeled human chorionic gonadotropin, have been used as receptor. Pregnancy could be detected by assaying the gonadotropin in plasma samples obtained from day 6 to 8 after conception.     

Wandering minds: the default network and stimulus-independent thought

Despite evidence pointing to a ubiquitous tendency of human minds to wander, little is known about the neural operations that support this core component of human cognition. Using both thought sampling and brain imaging, the current investigation demonstrated that mind-wandering is associated with activity in a default network of cortical regions that are active when the brain is "at rest." In addition, individuals' reports of the tendency of their minds to wander were correlated with activity in this network.     

“城市意象”的概念逻辑关系

本文深入解析了"城市意象"中四组概念的逻辑关系,管窥蠡测的探视了该书的基本概念的内涵与外延,探讨了城市元素或系统本身和相互之间的矛盾和消融的关系。     

基因芯片在食品研究及检测领域中的应用

基因芯片技术是一种多学科交叉融合产生的高新技术,该技术具有高效、大信息量和高特异性的特点,其在食品研究及检测领域中的运用越来越广泛。对基因芯片的概念原理及其主要内容作了介绍,并详述了基因芯片技术在食品领域中的应用现状和前景。     

Receptor-associated resistance to growth hormone-releasing factor in dwarf "little" mice

Anterior pituitaries from the dwarf mouse strain "little" did not release growth hormone or accumulate adenosine 3',5'-monophosphate (cyclic AMP) in response to human and rat growth hormone-releasing factor (GRF). Dibutyryl cyclic AMP, as well as the adenylate cyclase stimulators forskolin and cholera toxin, markedly stimulated growth hormone (GH) release. The basis of the GH deficiency in the little mouse may therefore be a defect in an early stage of GRF-stimulated GH release related either to receptor binding or to the function of the hormone-receptor complex.     

论“大国工匠”视角下职业院校拔尖创新人才培养模式

拔尖创新人才培养是新时代产业发展的动力源。高职院校应该以培养“大国工匠”为 目标,从工匠思维、工匠品格、工匠技艺、创新素质等方面,以“创新创业”为培养方式,通过“双标 准”考核,将具有“大国工匠”潜质的学生培养成为新时代“大国工匠”型拔尖创新人才,以满足国 家和社会发展的需要。     

优质高产籼稻“赣晚籼37号”的选育

“赣晚籼37号”(原名926)是用优质晚籼品种“923”自然杂交后代通过系谱法选择育成的一个优质高产品种。2005年通过了江西省品种审定。该品种既保持了“923”的外观和食味优良特性,产量又有所提高。主要表现大穗大粒,植株较高,适应性广,品质达国标3级,生育期与“汕优63”相近,可以在南方稻区作优质稻推广种植。同时,简要介绍了该品种的主要栽培技术。     

牦牛促黄体素放射受体分析方法的建立

以大鼠睾丸组织匀浆作受体,~(125)I—hCG作放射配体,hCG作参考标准,且在标准曲线各测定管中加入与待测血浆等量的无LH牦牛血浆,籍以排除血浆干扰因子的影响,成功地建立了LH/hCG的放射受体分析方法。试验表明,该法是一种测定牦牛LH的灵敏可靠的方法。     

关于农技推广中应用"互联网+"的作用分析及发展前景探讨

“互联网+”作为新一轮的科技革命和产业变革正在孕育兴起,在社会各行各业都已取得了 不错的应用成效,也为这些行业的工作提升创造了便利条件。农业是我国经济的重要组成部分,而农 技推广对促进农业科学生产和提升农业生产水平具有重要的战略意义,所以更应重视“互联网+”、大 数据、人工智能、区块链等在农技推广中的应用,期望借此契机实现先进农业技术的快速普及和有效 转化,进而引导我国的农业生产向着更加科学和规范的方向发展。     

Molecular cloning of a complementary DNA encoding human macrophage-specific colony-stimulating factor (CSF-1)

Complementary DNA (cDNA) clones encoding human macrophage-specific specific colony-stimulating factor (CSF-1) were isolated. One cDNA clone codes for a mature polypeptide of 224 amino acids and a putative leader of 32 amino acids. This cDNA, which was cloned in the Okayama-Berg expression vector, specifies the synthesis of biologically active CSF-1 in COS cells, as determined by a specific radioreceptor assay, macrophage bone marrow colony formation, and antibody neutralization. Most of the cDNA isolates contain part of an intron sequence that changes the reading frame, resulting in an abrupt termination of translation; these cDNA's were inactive in COS cells. The CSF-1 appears to be encoded by a single-copy gene, but its expression results in the synthesis of several messenger RNA species, ranging in size from about 1.5 to 4.5 kilobases.     

优质高产杂交中晚稻“金优752”的选育

用"金A"与自育的强恢复系"752"配组,育成了杂交中晚稻新组合"金优752",该组合具有穗大粒多、结实率高、优质、高产、抗病性较强、制种产量高、株型理想等特点;探讨了"金优752"的高产栽培技术和制种技术。     

中棉所29与国抗36对2003年梅雨期涝渍的耐性分析

江汉平原是我国主要产棉区,但在梅雨期间,因降水集中,强度大,极易对棉花造成涝渍灾害。2003年梅雨量达411mm,较历年同期偏多5成,导致全市皮棉大面积减产。通过对中棉所29与国抗36品种的气候生态适应性试验,着重对2个品种在梅雨期涝渍危害后的恢复状况等方面进行了分析。试验结果表明:中棉所29在梅雨期涝渍的气候条件下,比国抗36有着明显的增产优势,该品种适宜在江汉平原种植。通过分析,提出了相应的抗避灾对策。     

干部人事档案中“三龄一历”的认定

干部职工“三龄一历”是人事信息管理的基础,也是组织人事部门决策的重要参考依据。“三龄一历”的认定是一项非常严肃认真,且政策性很强的工作。它直接关系到每个人的切身利益,也关系到人事管理工作的质量和效率。针对近些年来人事档案中出现“三龄一历”与实际情况及历史记载不符的现象,作者提出了一些具体的认定方法,做到既对个人负责,又努力杜绝人事档案中的“失真”现象,维护人事档案的真实性和严肃性。     

优质高产杂交香稻新组合“宜优673”的选育与应用

“宜优673”是福建省农科院水稻研究所用引进的优质三系不育系“宜香1A”与自育的强恢复系“福恢673”配组而成的杂交香稻新组合。该组合在多点试验、示范中,表现出米质优、穗大粒多,丰产性、稳产性好,适应性广等特点,2006年通过福建省品种审定。介绍了“宜优673”的栽培和制种技术要点。     

抗寒脐橙“赣华79—9新生系”的选育及生物学特性与适应性研究

脐橙（Citrus sinensis(L)osbeck)赣华79－9新生系,是1979年由华盛顿脐橙自由授粉的种子,播种出苗后从多胚多苗中选出的珠心苗,该新生系1982年开始挂果,果实高圆球形,橙黄色,色泽鲜艳,无核,果大,质优,有香气,果实于11月中下旬成熟,座果率较华励顿脐橙高,特别是抗寒性和耐湿性均强,1979－2000年20多年来,经过4次严寒大冻的考验,同园或附近的温州密柑和Beng柑都被冻死（1991年冬）或遭受严重冻害,而赣华79－9则无冻害或冻害较轻,通过抗寒性的测定,其结果表明：赣华79－9新生系叶片内积累的ABA比Beng柑和温州蜜柑数值都大,内源GA3的含量始终保持较低的水平,进一步证明该新生系抗寒性强,生产实践也证明其抗寒性和耐湿性均强,适应性也广。     

论将人身自由罚纳入行政处罚听证程序的必要性

行政听证作为保障行政行为公平、公开、公正和保护相对人正当权益的一种重要程序和手段,已为多数国家所重视并在立法中有所体现。我国现行的《行政处罚法》没有将人身自由罚明确列入行政听政程序中去,这应该是一个缺憾。在宪法第四次修正案已明确规定国家尊重和保障人权的宪法环境下,在我国《治安管理处罚条例》即将修改之际,有必要把人身自由罚纳入到行政听证程序的范围中去。     

Tay-Sachs disease: generalized absence of a beta-D-N-acetylhexosaminidase component

Two hexosaminidase components, separable by starch-gel electrophoresis and possessing both beta-D-N-acetylglucosaminidase and beta-D-N-acetylgalactosaminidase activity, are present in human tissues. One of these, hexosaminidase component A, is absent in brain, liver, kidney, skin, cultured skin fibroblasts, blood plasma, and leukocytes from nine patients with Tay-Sachs disease. Hexosaminidase assay may facilitate the early diagnosis of individuals homozygous for Tay-Sachs disease.     

高产优质抗病e型杂交晚籼“e福两优F8”的选育与应用

“e福两优F8”是用长穗颈不育系“福eS1”与优质恢复系“赣香一号”(F8)杂交选育而成的e型晚籼新品种,该品种具有穗大粒多、产量高、米质优、抗病性强、适应性广等特点,2005年通过江西省农作物品种审定委员会审定。介绍了该品种的栽培和制种技术要点。