|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effect of human disturbance on the structure and regeneration of forests in the Nevado de Toluca National Park, Mexico显示文摘Sample plots were established in the principal forest types in the the Nevado de Toluca National Park, Mexico including those dominated by Pinus hartwegii, Abies religiosa, Quercus laurina and Alnus jorullensis. The vertical structure was defined by three strata in the coniferous forests and two strata in the broadleaved forests. Timber harvesting in Abies religiosa and Quercus laurina forests and fires generated by humans in Pinus hartwegii forests impeded the recruitment of saplings. Mature trees were also heavily impacted by logging in Pinus hartwegii forests. On the contrary, Alnus jorullensis forests were increasing due to the disturbance of Pinus and Quercus forests, as well abandoned crop lands within the park. A combination of logging, uncontrolled fire, and grazing appears to be compromising the recruitment of important tree species in this national park. These factors, together with human settlements, have also increased the proportion of early successional species. Changes in forest structure from human disturbance indicate a need to control these activities if conservation goals are not to be compromised. | Angel Rolando Endara Agramont Sergio Franco Maass Gabino Nava Bernal Juan Ignacio Valdez Hernández Todd S.Fredericksen | 2012 | Journal of Forestry Research2012，23，1： | 5 |
| 2 | 初乳:预防哺乳仔猪腹泻的关键显示文摘对养猪生产者而言,产房内的仔猪发生腹泻是一个很古老的问题,也是一种非常常见的现象。目前有多种方法可以避免这种现象的发生——不足为奇的是,初乳在这方面可以起着重要的作用。在养猪生产中,多种病原体可以导致仔猪腹泻,其中包括大肠杆菌、产气夹膜梭菌、猪等孢子球虫(球虫病)、猪流行性腹泻和轮状病毒。正确的清洁与消毒有助于减少环境中这些病原体的负载量,但是无法避免仔猪在生命之初感染病原体。出生时健康、均一、活力强是仔猪生长的一个良好开端。遗传选择、母猪个体饲养方案以及顺利分娩都有助于实现这一良好的开端。 | 赵瑜(译) 张配配 韩浩月(图) Petra Maass Oliver Duran | 2017 | 国外畜牧学(猪与禽)2017，0，3： | 3 |
| 3 | Nitric oxide modulation of TNF- alpha- induced cardiac contractile dysfunction is concentration dependent显示文摘 | Horton JW Maass D White J | 2000 | Am J Physiol2000，278，6： | 2 |
| 4 | Vapor densities at low pressures and over an extended temperature range, I: the properties of ethylene oxide compared to oxygen compounds of similar molecular weight 显示文摘 | Maass B O Boomer E H | 1922 | Journal of the American Chemical Society1922，44，8： | 2 |
| 5 | Reduced metastasis-suppressor gene mRNA-expression in breast cancer brain metastases显示文摘 | Andreas M. Stark Kerrin Tongers Nicolai Maass H. Maximilian Mehdorn Janka Held-Feindt | 2005 | Journal of Cancer Research and Clinical Oncology2005，，3： | 2 |
| 6 | Decline in the expression of the serine proteinase inhibitor maspin is associated with tumour progression in ductal carcinomas of the breast显示文摘 | Maass N Teffner M R sel F | 2001 | J Pathol2001，195，： | 1 |
| 7 | Scaling behaviour in the growth of companies显示文摘 | Stanley M H R Amaral L A N Buldyrev S V Havlin S Leschhorn H Maass P Salinger M A Stanley H E | 1996 | Nature1996，379，： | 1 |
| 8 | Decline in the expression of the serine proteinase inhibitor maspin is associated with tumour progression in ductal carcinomas of the breast显示文摘 | Maass N Teffner M Rosel F | 2001 | J Pathol2001，19，3： | 1 |
| 9 | Plant diversity and generation of ecosystem services at the landscape scale:expert knowledge assessment显示文摘 | Quijas S Jackson LE Maass M Schmid B Raffaelli D Balvanera P | | 0，，： | 1 |
| 10 | Expression and function of connexins in the epidermis, analyzed with transgenic mouse mutants 显示文摘 | Kretz M Maass K Willecke K | 2004 | Eur J Cell Biol2004，83，1112： | 1 |
| 11 | On Li-Yorke pairs显示文摘 | Blanchard F Glasner E kolyada S Maass A | 2002 | J Reine Angew Math2002，547，： | 1 |
| 12 | Reduced metastasis suppressor gene mRNA-expression in breast cancer brain metastases显示文摘 | Stark A M Tongers K Maass N | 2005 | Cancer Res Clin Oncol2005，131，3： | 1 |
| 13 | Real-time computing without stable states:A new framework for neural computation based on perturbations显示文摘 | Maass W Natschl(a)ger T Markram H | | 0，，11： | 1 |
| 14 | Pneumocoocal septic shock is associated with the interleukin - 10 - 1082 gene promoter polymorphism 显示文摘 | Schaaf B M Boehmke F Esnaashari H Seitzer U Kothe H Maass M Zabel P and Dalho K | 2003 | Am J Resp Crit Care Med2003，168，： | 1 |
| 15 | Defective epidermal barrier in neonatal mice lacking the C-terminal region of connexin43 显示文摘 | Maass K Ghanem A | 2004 | Mol Biol Cell2004，15，10： | 1 |
| 16 | Expression of tumor suppres- sor gene maspin in human breast cancer tumor显示文摘 | Maass N Nagasaki K Jonat W | 1999 | ASCOProe1999，18，： | 1 |
| 17 | Liver specific overexpression of platelet-derived growth factor-B accelerates liver cancer development in chemically induced liver carcinogenesis 显示文摘 | Maass T Thieringer FR Mann A | 2011 | Int J Cancer2011，128，6： | 1 |
| 18 | Networks of Spiking Neurons: The Third Generation of Neural Network Models显示文摘 | Maass W | 1997 | Neural Networks1997，10，9： | 1 |
| 19 | Photometry and colorimetry of reference LEDs by using a compact goniophotometer显示文摘 | LINDEMANN M MAASS R | 2009 | Journal of Metrology Society of India2009，24，3： | 1 |
| 20 | Mechanisms of the pathogenesis of troponin T-based familial hypertrophic cardiomyopath 显示文摘 | Maass AH Leinwand LA | 2003 | Trends Cardiovasc Med2003，13，6： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员