搜索结果: 1-15 共查到“理学 1D”相关记录53条 . 查询时间(0.078 秒)
2022年10月20日，中国科学院遗传与发育生物学研究所研究员曹晓风研究组在Science China Life Sciences上，发表了题为Mobile ARGONAUTE 1d binds 22-nt miRNAs to generate phasiRNAs important for low-temperature male fertility in rice的论文，揭示了OsAGO1d可...
单子叶植物生殖细胞中产生大量21-和24-nt phasiRNA，和动物中piRNA类似参与雄配子发育，特别是极端温度下的育性调控，但有关phasiRNA的合成机制及功能调控却知之甚少。
近日，中国科学院遗传与发育生物学研究所曹晓风研究组在Science China Life Sciences发表了题为Mobile ARGONAUTE 1d binds 22-nt miRNAs to gener...
成都生物所开发出一种2D-1D-2D质谱成像新方法（图）
质谱成像 化学信息 质谱分析
2023/8/10
生物组织中的化学成分包含着生物的生理、病理发生和发展的重要信息，获取这些化学信息对生命科学研究具有重要意义。质谱成像技术无需标记即可获取目标化合物的空间分布信息，具有灵敏度高、准确可靠、分析速度快等特点，已广泛应用于生物组织分析。现有的质谱成像方法需要先将样品切片后固定在二维平台上，然后对二维平台上的样品来回扫描成像，故而成像尺寸受到平台和质谱接口尺寸的极大限制。因此，开发可灵活用于大体积生物组织...
植物器官的大小调控是一个重要的生物学过程，直接影响农作物产量。目前对于植物器官大小调控的研究集中在转录调控、激素信号通路及蛋白质合成与修饰等多个水平和途径，但具体的分子机制并不是很清晰。李云海实验室前期研究发现了一个器官大小的关键调控基因UBIQUITIN SPECIFIC PROTEASE 15（UBP15）/SUPPRESSOR2 OF DA1（SOD2）。sod2-1突变体由于UBP15基因...
Local Limit Theorems for Random Walks in a 1D Random Environment
RWRE quenched random environments
2015/9/29
We consider random walks (RW) in a one-dimensional i.i.d.
random environment with jumps to the nearest neighbours. For almost
all environments, we prove a quenched Local Limit Theorem (LLT) for
the...
QUENCHED LIMIT THEOREMS FOR NEAREST NEIGHBOUR RANDOM WALKS IN 1D RANDOM ENVIRONMENT
NEIGHBOUR RANDOM WALKS IMIT THEOREMS
2015/9/29
It is well known that random walks in one dimensional random environment can exhibit subdiffusive behavior due
to presence of traps. In this paper we show that the passage times
of diffe...
Discrete Kernel Preserving Model for 1D Electron-Optical Phonon Scattering
D Electron-Optical Phonon Scattering Discrete Kernel Preserving Model
2014/9/26
We investigate the discretization of of an electron-optical phonon scattering using
a nite volume method. The discretization is conservative in mass and is essentially
based on an energy point of v...
近日，由中国科学院大连化学物理研究所分子反应动力学国家重点实验室傅碧娜、张东辉、杨学明等撰写的论文Trapped Abstraction in the O(1D)+CHD3→OH+CD3 Reaction 发表在最新出版的The Journal of Physical Chemistry Letters 杂志上。
Multiplicity of 1D-concentrating positive solutions to the Dirichlet problem for equation with $p$-Laplacian
Multiplicity of 1D-concentrating positive solutions Dirichlet problem equation Analysis of PDEs
2012/6/21
We prove the multiplicity of spike-layer type solutions to the Dirichlet problem for the equation $-\Delta_p u = u^{q-1}$ in expanding annuli.
Long range transport of ultra cold atoms in a far-detuned 1D optical lattice
Long range transport ultra cold atoms far-detuned 1D optical lattice Atomic Physics
2012/4/27
We present a novel method to transport ultra cold atoms in a focused optical lattice over macroscopic distances of many Rayleigh ranges. With this method ultra cold atoms were transported over 5 cm in...
Self force via $m$-mode regularization and 2+1D evolution: II. Scalar-field implementation on Kerr spacetime
regularization 2+1D evolution Scalar-field implementation Kerr spacetime
2011/10/18
This is the second in a series of papers aimed at developing a practical time-domain method for self-force calculations in Kerr spacetime. The key elements of the method are (i) removal of a singular ...
On the universal relations for the formfactors in 1D quantum liquids
universal relations 1D quantum liquids Mathematical Physics
2011/9/16
Abstract: For various one-dimensional quantum liquids in the framework of the Luttinger model (bosonization) we establish the relations between the coefficients before the power-law asymptotics of the...
On the resonances and eigenvalues for a 1D half-crystal with localised impurity
resonances scattering periodic potential S-matrix
2011/9/6
Abstract: We consider the Schr\"odinger operator $H$ on the half-line with a periodic potential $p$ plus a compactly supported potential $q$. For generic $p$, its essential spectrum has an infinite se...
An anti-symmetric exclusion process for two particles on an infinite 1D lattice
anti-symmetric exclusion process infinite 1D lattice Biological Physics
2011/9/1
Abstract: A system of two biased, mutually exclusive random walkers on an infinite 1D lattice is studied whereby the intrinsic bias of one particle is equal and opposite to that of the other. The prop...
An anti-symmetric exclusion process for two particles on an infinite 1D lattice
anti-symmetric exclusion process two particles infinite 1D lattice
2011/8/16
Abstract: A system of two biased, mutually exclusive random walkers on an infinite 1D lattice is studied whereby the intrinsic bias of one particle is equal and opposite to that of the other. The prop...