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1.
2019年,《遗传》共收稿388篇,正式刊出稿件107篇,共有55位编委和260位专家参与本年度的审稿工作。谨向所有参加审稿的编委和专家表示衷心的感谢!向所有的作者表示衷心的感谢!2019年度审理稿件的编委:包其郁,岑山,陈德富,陈雁,储成才,方向东,高彩霞,高绍荣,谷峰,胡松年,胡炜,蒋思文,赖江华,李辉,李明洲,刘宝,刘峰,刘钢,卢大儒,苗龙,任军,史岸冰,史庆华,宋旭,孙玉洁,王晓群,吴东东,吴强,吴志英,夏昆,夏先春,谢建平,谢小冬,邢永忠,徐湘民,许琪,许执恒,严建兵,杨焕明,杨永华,杨昭庆,杨中州,袁慧军,张博,张飞雄,张根发,张红生,张天宇,张宪省,张勇,赵方庆,赵彦艳,赵要风,周钢桥,朱卫国。  相似文献   

2.
低智儿童与正常儿童中氨基酸的比较研究   总被引:1,自引:0,他引:1  
我们对 30例低智儿童血清中TAU ,SER ,GLU ,GLY ,ALA ,VAL ,CYS ,MET ,ILE ,LEU ,TYR ,PHE ,TRP ,HIS ,ORN ,LYS ,ARG ,PRO ,18种游离氨基酸进行了测定。研究结果显示 :患儿血清中 11种游离氨基酸降低分别为 :TAU ,SER ,VAL ,MET ,ILE ,LEU ,TRY ,PHE ,ORN ,LYS ,TRP .氨基酸的失衡 ,儿童的蛋白质合成就将会受到严重的影响 ,因此将导致大脑的分化 ,发育受阻 ,引起智力低下。  相似文献   

3.
《热带亚热带植物学报》2004年10月-2005年5月审稿人按姓氏汉语拼音排序如下,谨致谢意 如有遗漏或错误.请与编辑部联系蔡联炳,曹美莲,常杰,陈邦余,陈清潮,陈如凯,陈润政,陈维伦,陈晓英,陈锡沐,陈贻竹,陈章和, 陈志谊,陈忠毅,陈祖铿,邓秀新,邓云吃,J烟扬,黄鸣,董什勇,东秀珠,高贤明,高云超,葛颂, 耿世磊,胡迪琴,胡晗华,何生根,何之常,何关描,胡英杰,胡新文,胡正海,黄学林,黄彰欣,黄凤宽 姜慧芳,蒋高明,蒋跃明,靖元孝,季作梁,康文星,赖小平,李斌,李秉滔,李立家,李良材,李良壁, 李鸣光,李瑞声,李绍华,李锡文,李用华,李志安,梁峥,廖柏寒,廖景平…  相似文献   

4.
EDITORLIANG DongcaiInstitute of Biophysics, Chinese Academy of Sciences, Beijing 100101, ChinaEDITORIAL BOARDCHEN Weifeng, Peking University Health Science Center, Beijing, ChinaWU Zuze, Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing, ChinaXU Zhihong, College of Life Sciences, Peking University, Beijing, ChinaYANG Hongyuan, College of Life Sciences, Wuhan University, Wuhan, ChinaZHANG Qifa, Huazhong Agricultural University, Wuhan, China  相似文献   

5.
青龙胶囊治疗多发性硬化1例   总被引:1,自引:0,他引:1  
患者吴某某,男,21岁,战士,于1992年1月下旬无诱因出现双眼视力下降,听力减退,头痛,无发热,3月份出现四肢麻木,无力,行走不稳曾诊断视神经脊髓炎,卡他性中耳炎治疗无好转,症状加重,不能行走,到沈阳数个医院治疗无效,于4月份转送我院。查心肺正常,肝脾未触及,神志清楚,语言流利,双瞳孔等大圆,光反射存在对称,眼球运动正常,视力左眼0.01,右眼0.8,视野正常,眼底视乳头色淡,视网膜静脉迂曲,黄斑中心凹反射不清,视神经萎缩,外耳正常,鼓膜光锥分散,短突突出,鼓膜轻度凹陷,电测听双耳对低音(1000HZ)气导骨导均有障碍,肌张力增强,肌力Ⅲ级,浅感觉减退,膝键反射(+++),巴氏征(+),三大常规,肝功、HBsAg,抗0,血沉均正常,心电图、脑电图正常,二次查脑脊液大致正常;脑 CT 亦无异常,综上按  相似文献   

6.
EDITORLIANG DongcaiInstitute of Biophysics, Chinese Academy of Sciences, Beijing 1001011 ChinaEDITORIAL BOARDCHEN Weifeng, Peking University Health Science Center, Beijing, ChinaWU Zuze, Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing, ChinaXU Zhihong, College of Life Sciences, Peking University, Beijing, ChinaYANG Hongyuan, College of Life Sciences, Wuhan University, Wuhan, ChinaZHANG Qifa, Huazhong Agricultural University, Wuhan, China  相似文献   

7.
中国锦鸡儿属植物资源研究—分布及分种描述   总被引:48,自引:5,他引:43  
记录了锦鸡儿属(Cargana Fabr.)植物的资源分布,并对该属66种植物(小叶锦鸡儿,柠条锦鸡儿,中间锦鸡儿,树锦鸡儿,黄刺条,锦鸡儿,红花锦鸡儿,密叶锦鸡儿,鬼箭锦鸡儿,毛掌叶锦鸡儿,白毛锦鸡儿,甘蒙锦鸡儿,矮锦鸡儿,繁花锦鸡儿,矮脚锦鸡儿,狭叶锦鸡儿,毛刺锦鸡儿,柄荚锦鸡儿,秦晋锦鸡儿,北京锦鸡儿,南口锦鸡儿,五台锦鸡儿,昆仑锦鸡儿,库车锦鸡儿,短叶锦鸡儿,变色锦鸡儿,二色锦鸡儿,白皮锦鸡儿,青甘锦鸡儿,川西锦鸡儿,云南锦鸡儿,猫耳锦鸡儿,陕西锦鸡儿,长爪锦鸡儿,甘肃锦鸡儿,扁刺锦鸡儿,青海锦鸡儿,二连锦鸡儿,弯枝锦鸡儿,昌都锦鸡儿,楔翼锦鸡儿,高山锦鸡儿,藏北锦鸡儿,尼泊尔锦鸡儿,沦江锦鸡儿,吉降职一锦鸡儿,文县锦鸡儿,粗刺锦鸡儿,西藏锦鸡儿,刺锦鸡儿,粉刺锦鸡儿,草原锦鸡儿,阿拉套锦鸡儿,伊犁锦鸡儿,阿尔泰锦鸡儿,镰叶锦鸡儿,中亚锦鸡儿,邦卡锦鸡儿,绢毛锦鸡儿,白刺锦鸡儿,多叶锦鸡儿,新疆锦鸡儿,刺叶锦鸡儿,粗毛锦鸡儿,准噶尔锦鸡儿,吉尔吉斯锦鸡儿)的特征,习性及分布进行了详细描述。  相似文献   

8.
张泽荣  刘培嵩 《植物研究》1984,4(2):147-149
攀援灌木,高1-2米,小枝紫色,略具条纹,无毛,皮孔较大,明显突起,椭圆形,黄褐色,密集,髓大,隔片状,淡黄褐色;芽卵形,密被褐色绒毛。  相似文献   

9.
病例 患者 ,女 ,72岁。就诊前 35天 ,突感右侧肢体活动不灵 ,不能站立及持物 ,喝水漏水 ,无呛咳 ,无头痛、恶心呕吐 ,咳嗽 ,无呼吸困难 ,无发冷、发热 ,在当地医院用扩张血管等药物治疗 ,症状无明显好转而于 1 995年 7月 1 7日来我院就诊。患者有慢性支气管炎病史 2 0余年。查体 :体温 36.5℃ ,脉搏 80次 /分 ,呼吸 1 8次 /分 ,血压 2 2 /1 2 k Pa,神志清楚 ,语言欠流利 ,浅表淋巴结无肿大 ,双侧瞳孔等大等圆 ,对光反射存在 ,右鼻唇沟变浅 ,右侧口角下垂 ,颈软 ,无颈静脉怒张 ,气管居中 ,甲状腺无肿大。桶状胸 ,对称无畸形 ,肋间隙变宽 ,…  相似文献   

10.
经编辑部初步统计(2022年),1985-2018年,有44位两院院士在《西北植物学报》共发表研究论文183篇,并且有8篇双院士作者论文。44位院士作者姓名按发表论文时间先后排序:侯学煜,郑国锠,李振声,种康,山仑,陈俊愉,孙大业,康绍忠,许智宏,沈允钢,于振文,余松烈,张福锁,刘大钧,董玉琛,戴景瑞,洪德元,邵明安。  相似文献   

11.
There is good evidence that species' distributions are shifting poleward in response to climate change and wide interest in the magnitude of such responses for scientific and conservation purposes. It has been suggested from the directions of climatic changes that species' distribution shifts may not be simply poleward, but this has been rarely tested with observed data. Here, we apply a novel approach to measuring range shifts on axes ranging through 360°, to recent data on the distributions of 122 species of British breeding birds during 1988–1991 and 2008–2011. Although previously documented poleward range shifts have continued, with an average 13.5 km shift northward, our analysis indicates this is an underestimate because it ignores common and larger shifts that occurred along axes oriented to the north‐west and north‐east. Trailing edges contracted from a broad range of southerly directions. Importantly, these results are derived from systematically collected data so confounding observer‐effort biases can be discounted. Analyses of climate for the same period show that whilst temperature trends should drive species along a north–north‐westerly trajectory, directional responses to precipitation will depend on both the time of year that is important for determining a species' distribution, and the location of the range margin. Directions of species' range centroid shift were not correlated with spatial trends in any single climate variable. We conclude that range shifts of British birds are multidirectional, individualistic and probably determined by species‐specific interactions of multiple climate factors. Climate change is predicted to lead to changes in community composition through variation in the rates that species' ranges shift; our results suggest communities could change further owing to constituent species shifting along different trajectories. We recommend more studies consider directionality in climate and range dynamics to produce more appropriate measures of observed and expected responses to climate change.  相似文献   

12.
We investigated homogeneity of growth and development as indices of developmental stability in sibling tadpoles from two sampling regions of the common frog, Rana temporaria. One region is characterized by relatively warm breeding ponds with a short activity season (`north'), and one by relatively cool breeding ponds and a long activity season (`south'). Tadpoles from the two regions were raised in three different temperatures selected to mimic the natural variation throughout the range. The results show that (1) north tadpoles respond with a relatively greater increase in growth with increased temperature than south tadpoles, (2) mean growth rate and its coefficient of variation were negatively correlated in the temperature regime in which a population was primarily under selection in the wild, whereas no such correlation was found at temperatures more seldom encountered in the natural populations, (3) phenotypic and genetic correlations between morphological traits within individuals were positive and were relatively higher in north than south tadpoles in the warm treatment, but higher for south tadpoles in the cold treatment and (4) across thermal environments, south tadpoles showed significant genetic correlations, whereas the correlations for north tadpoles were not significantly different from zero. South tadpoles showed only positive genetic correlations (n=30), whereas 14 of 30 correlation coefficients were negative in north tadpoles. In conclusion, developmental stability for growth and morphometry was higher at `optimal' conditions and decreased at the tail ends of the reaction norms within regions, with marked differences reflecting selection history between regions.  相似文献   

13.
Scions of a southern (59° 40'N Lat.) and a northern (69° 39'N Lat.) ecotype of Salix pentandra L. were grafted on clonal rootstocks of the same ecotypes. Effects of photoperiod on elongation growth of the 4 combinations (south/south, south/north, north/south and north/north) were studied in a phytotron at 18° and 15°C. The photoperiodic response was primarily dependent on the ecotype of the scion, but this response was significantly modified by the rootstock. Cessation of apical growth was advanced by a northern clone and delayed by a southern clone as a rootstock. The results indicate that the critical photoperiod for cessation of apical growth could be slightly decreased by a northern and increased by a southern rootstock.  相似文献   

14.
王伟伟  周立华  孙燕  陈勇  杨国靖 《生态学报》2021,41(23):9282-9291
为了改善北方农牧交错区退化的草原,国家从21世纪初开始实施了禁牧政策,政策实施以后,北方农牧交错区农民的生产生活都受到很大的影响。对该地区农民主观幸福感的影响因素进行研究,尤其是研究收入和禁牧政策的感知对主观幸福感的影响,可以为后续政策实施和改善提供理论支持,并为营造幸福生活、建立幸福乡村提供更多依据。基于此本文以典型北方农牧交错区宁夏自治区盐池县为例,通过调查问卷数据,采用OLS回归模型和分位数回归模型分析了农民生活满意度的影响因素。结果表明:(1)自评价的相对收入、自评价的收支状况、禁牧政策满意度、禁牧政策对收入的影响、参加社会活动的频率和环境满意度对生活满意度有显著的正向影响。(2)自评价的相对收入、自评价的收支状况和禁牧政策满意度的正向影响随农民生活满意度分位点的提高而降低,而禁牧政策的收入影响只对中分位点农民的生活满意度起到显著的正向影响。参加活动的频率对低生活满意度分位点农民的正向影响不显著,而环境满意度只在高分位点对农民的生活满意度有显著的正向影响。(3)较高的生活满意度可以使农村居民更支持和愿意参与到生态政策中去。所以,有必要继续完善现有生态补偿政策,在继续保护和改善北方农牧交错区生态环境的同时,提高北方农牧交错区农村居民的主观幸福感,促进社会的可持续发展。  相似文献   

15.
根据黄土高原南北样带尺度的人工刺槐林(Robinia pseudoacacia)的年轮宽度资料,分析了该地区刺槐树木生长趋势,以及刺槐年表对气候响应随降雨梯度变化规律。研究结果表明延安以北的刺槐样点(绥德、神木)年轮指数近期趋于下降,树木有生长衰退现象;而延安以南刺槐样点(延安、富县、宜君、永寿)年轮指数近期趋于上升,树木无生长衰退现象。气候响应结果表明,刺槐年表对气候响应均以延安样点最为敏感,表现年表与温度的负相关关系,以及年表与降雨和干旱指数的正相关关系,而延安以北和以南刺槐样点对气候响应敏感性均较低。黄土高原中部延安地区地处森林草原过渡带,刺槐生长对外界环境变化最为敏感,年表中气候信号也较强;延安以南地区地处森林植被带,气候条件较为适宜刺槐林生长,因而年表中气候信号较弱;延安以北地区地处草原植被带,气候条件比较恶劣,刺槐生长对干旱气候已有一定适应性特征,因而年表中气候信号也较弱。  相似文献   

16.
OBJECTIVES--To examine the effects of early case management for patients with severe head injury on outcome, family function, and provision of rehabilitation services. DESIGN--Prospective controlled unmatched non-randomised study for up to two years after injury. SETTING--Four district general hospitals and two university teaching hospitals, each with neurosurgical units, in east central, north, and north east London and its environs. SUBJECTS--126 patients aged 16-60 recruited acutely and sequentially after severe head injury. All received standard rehabilitation services in each of the six hospitals and districts: case management was also provided for the 56 patients admitted to three of the hospitals. MAIN OUTCOME MEASURES--Standard measures of patients'' physical and cognitive impairment; disability and handicap; and affective, behavioural, and social functioning and of relatives'' affective and social functioning. Relatives'' perception of burden; changes in patients'' and relatives'' housing, financial, vocational, recreational, and medical needs; and ongoing requirements for care and support; and the amount and type of paramedical input provided were assessed with structured questionnaires. RESULTS--For a given severity of injury, case management increased the chance and range of contact with inpatient and outpatient rehabilitation services. However, duration of contact was not increased by case management, and there was no demonstrable improvement in outcome in the case managed group. Any trends were in favour of the control group and could be accounted for by group differences in initial severity of injury. CONCLUSIONS--Widespread introduction of early case management of patients after severe head injury is not supported, and early case management is not a substitute for improvement in provision of skilled and specialist rehabilitation for patients.  相似文献   

17.
在社会经济发展与生态环境发展逐渐失调的背景下,滇金丝猴作为中国特有的珍稀濒危物种,其生境质量的研究是平衡经济发展与物种保护的重要基础。选取滇西北地区2572个自然村的社会经济数据和344个样地运用GIS空间分析法的主成分分析和InVEST模型,研究滇西北地自然村发展对滇金丝猴分布区生境质量的影响,结果如下:(1)研究区南部自然村发展优于北部;(2)研究区北部的生境质量比南部高,北部自然村对滇金丝猴生境质量的影响比南部的自然村小;北部的生境稀缺性比南部高,生态稳定性差,需要制定优先保护策略;(3)猴群分布区内存留12个自然村,自然村发展对第3、6和14猴群(C3、C6和C14)的生境质量影响大,生境质量比较低;猴群C1、C12和C13分布区内的生境稀缺性较高,生境脆弱,需要优先加强规划;划定滇金丝猴优质生境、中等生境和低质生境区域,占比分别为26.85%、20.44%和52.71%。  相似文献   

18.
Wm. Wayt Thomas 《Brittonia》1984,36(3):244-247
A new species,Simaba cavalcantei, is described and illustrated. It is considered to be intermediate between sectionsGrandiflorae andFloribundae and is distinguished from potentially sympatric species in a key to the species occurring north of the Amazon River.  相似文献   

19.
  • 1 Martino's vole Dinaromys bogdanovi is the only living member of the Tertiary genus Dinaromys, and probably also the only surviving member of the Pliomys lineage. The range of the genus Dinaromys has historically been small and its rate of evolution has been low.
  • 2 Martino's vole shows all three attributes of rarity in accordance with Rabinowitz's ‘seven forms of rarity’ model: (i) its range is estimated at 43 545 km2 but the area of occupancy is <5200 km2; (ii) its habitat requirements are narrow and the species is strictly tied to exposed, karstified bedrock; and (iii) current populations are invariably small and frequently isolated.
  • 3 The Pleistocene range of Martino's vole exceeded the recent one, at least in the north‐western part of the Balkans, and its shrinkage continued into the Holocene.
  • 4 Martino's vole may be in competition with the European snow vole Chionomys nivalis, which has a very similar morphology and presumably identical habitat requirements, but is shifted towards an r‐selected life‐history strategy. Long‐term sympatry of these voles has probably resulted in competitive exclusion of the relatively K‐selected Martino's vole by the relatively r‐selected European snow vole.
  • 5 Martino's vole consists of two deeply divergent (about one million years ago) phylogeographical lineages, which may represent distinct cryptic species. Rarity is particularly pronounced in the north‐western lineage to the west of the Neretva River, where rocky habitats are largely occupied by the European snow vole.
  • 6 In the IUCN Red List of Threatened Animals, Martino's vole is classified as ‘near threatened’. However, the north‐western lineage, which is phylogeographically most divergent and has the greatest genetic diversity, is classed as a ‘vulnerable’ evolutionary significant unit on the basis of its small area of occupancy (<2000 km2). Long‐term population monitoring is an essential step in evaluating the conservation needs of Martino's vole.
  相似文献   

20.
We conducted a new survey of biologists throughout the southern and central United States, in order to update our last analysis of the range expansion and distributional limits of the nine‐banded armadillo (Dasypus novemcinctus) since 1994. While the armadillo's range has remained stationary to the west along a line corresponding to about 50 cm annual precipitation, it has advanced to the north through central Kansas, into central Illinois, south‐western Indiana and western Kentucky, through central Tennessee, covering Alabama and all but the north‐eastern region of Georgia, and into central South Carolina. The population has reached a latitude corresponding to an average minimum daily January temperature of ?8 °C in Kansas . Armadillos may continue to move northwards in states farther east where they do not yet reach the ?8 °C zone. In the eastern seaboard states, other factors besides winter temperature extremes may be limiting the armadillo's range expansion.  相似文献   

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