搜索结果: 1-15 共查到“知识库 理学 N fertilization”相关记录29条 . 查询时间(0.246 秒)
Mathematics of gamete diffusion and fertilization in aquatic habitats
gamete diffusion aquatic habitats
2015/11/12
Mathematics of gamete diffusion and fertilization in aquatic habitats
Over the past 20 years there has been growing interest in the concept of fertilizing the ocean with iron to abate global warming. This interest was catalyzed by basic scientific experiments showing th...
Characterization of the sperm factor responsible for initiating [Ca2+]i oscillations during fertilization in mammalian eggs
Biological sciences Sperm factor Oscillations Fertilization Mammalian eggs
2015/1/28
During fertilization the sperm activates the mammalian egg by eliciting [Ca2+]i oscillations. However, how the sperm triggers [Ca2+]i oscillations in mammalian eggs remains unknown. To test the possib...
Near-future levels of ocean acidification do not affect sperm motility and fertilization kinetics in the oyster Crassostrea gigas
Near-future levels ocean acidification sperm motility and fertilization kinetics the oyster Crassostrea gigas
2010/1/21
An increasing number of studies are now reporting the effects of ocean acidification on a broad range of marine species, processes and systems. Many of these are investigating the sensitive early life...
Effects of N and P fertilization on the greenhouse gas exchange in two northern peatlands with contrasting N deposition rates
N and P fertilization greenhouse gas exchange northern peatlands N deposition rates
2010/1/21
Peatlands are important ecosystems in the context of biospheric feedback to climate change, due to the large storage of organic C in peatland soils. Nitrogen deposition and increased nutrient availabi...
Impact of atmospheric and terrestrial CO2 feedbacks on fertilization-induced marine carbon uptake
atmospheric and terrestrial CO2 feedbacks fertilization-induced marine carbon uptake
2010/1/20
The sensitivity of oceanic CO2 uptake to alterations in the marine biological carbon pump, such as brought about by natural or purposeful ocean fertilization, has repeatedly been investigated by studi...
Mineral fertilization did not affect decay of old lignin and SOC in a 13C-labeled arable soil over 36 years
Mineral fertilization decay lignin SOC 13C-labeled arable soil
2010/1/20
Retardation of soil organic carbon (SOC) decay after nitrogen addition to litter or soil has been suggested in several recent studies and has been attributed to a retardation in lignin decay. With our...
Ammonia fluxes in relation to cutting and fertilization of an intensively managed grassland derived from an inter-comparison of gradient measurements
Ammonia fluxes cutting fertilization grassland inter-comparison gradient measurements
2010/1/20
Quantification of ammonia (NH3) land-atmosphere exchange is required for atmospheric modelling and assessment of nitrogen deposition, yet flux measurement methods remain highly uncertain. To address t...
Stage-specific Expression of Lanosterol 14-Demethylase in Mouse Oocytes in Relation to Fertilization and Embryo Development Competence
Mouse Oocyte Lanosterol 14 -Demethylase In vitro Fertilization Early Embryo Development
2016/4/29
Follicular fluid meiosis-activating sterol (FF-MAS) has been suggested as a positive factor which could improve the oocyte quality and subsequent embryo development after in vitro fertilization. Howev...
Effect of water addition and nitrogen fertilization on the fluxes of CH4, CO2, NOx, and N2O following five years of elevated CO2 in the Colorado Shortgrass Steppe
nitrogen fertilization CH4 CO2 NOx N2O Colorado Shortgrass Steppe
2009/3/11
An open-top-chamber (OTC) CO2 enrichment (~720 mmol mol-1) study was conducted in the Colorado shortgrass steppe from April 1997 through October 2001. Aboveground plant biomass increased under elevate...
Association between HSP70 Genotypes and Oocytes Development on In vitro Maturation/Fertilization in Pig
Fertilization Maturation Porcine Oocytes HSP70 Genotypes
2016/4/28
This study was performed to clarify whether the variation of stress related heat shock protein 70 (HSP70) (GenBank X68213) gene was associated with the nuclear morphological change of in vitro maturat...
Comparison of Viability, ATP and In vitro Fertilization of Boar Sperm Stored at 4??C in the Three Different Diluents
Fertilization Liquid Semen Oocyte Porcine
2016/4/28
This study was designed to develop a method of liquid storage of boar sperm at 4??C by using the modified Beltsville F5 (BF5) diluent with bovine serum albumin (BSA) and N-acetyl-D-glucosamine. Boar s...
The impact on atmospheric CO2 of iron fertilization induced changes in the ocean's biological pump
atmospheric CO2 iron fertilization ocean's biological pump
2010/1/15
Using numerical simulations, we quantify the impact of changes in the ocean's biological pump on the air-sea balance of CO2 by fertilizing a small surface patch in the high-nutrient, low-chlorophyll r...
小鼠受精抗原1基因与人类同源基因的关系 The Relationship between Mouse Fertilization Antigen 1 Gene and The Human Counterpart Gene
受精抗原 基因克隆
2007/12/29
参照已报道小鼠受精抗原1（FA1）基因序列设计引物，运用PCR和PCR产物克隆测序等方法，对人受精抗原1（FA1）基因进行了克隆，并对两者进行了比较，结果显示:（1）已报道的小鼠FA1基因序列在其可读框内可能存在两处错误。（2）人OTK27基因可能与小鼠FA1基因同源，即OTK27基因就是人hFA1基因，或FA1基因就是小鼠otk27基因。
雌核发育银鲫与两性生殖彩鲫卵壳蛋白组分的比较分析及其受精前后的变化Comparative Analysis on the Protein Composition of Egg Chorions between Gynogenetic Silver Crucian Carp and Gonochoristic Color Crucian Carp and the Changes during Fertilization
雌核发育 卵壳蛋白 受精 银鲫
2007/12/7
摘要以雌核发育银鲫和两性生殖彩鲫的成熟卵为材料，分离卵壳，经处理得到卵壳可溶性蛋白组分。SDS－PAGE梯度凝胶电泳分析在雌核发育银鲫中揭示出3条较明显的差异蛋白带。同时，采用相同处理方法对受精前后卵壳蛋白组分进行比较分析后发现，这些差异蛋白带在受精后发生了变化，其带纹表现为减弱或消失，表明这些差异蛋白可能与受精过程相关。
Abstracts:Egg chorions were isolated...