Electrochemical model for proton exchange membrane fuel cell
... 1. Introduction Non-polluting energy generation and other environmental issues have been driving an increasing demand over the last few years for new energy conversion technologies. It is in this context that PEM fuel cell systems constitute a promising alternative due their high efficiency and low ...
... 1. Introduction Non-polluting energy generation and other environmental issues have been driving an increasing demand over the last few years for new energy conversion technologies. It is in this context that PEM fuel cell systems constitute a promising alternative due their high efficiency and low ...
Mechanisms and cellular roles of local protein synthesis in mammalian cells
... specific mRNA transport pathways by studying them. Despite this, it is abundantly clear that synaptic activity influences the distribution and motility of these entities, and based on this it has been proposed that mRNA localizes to active synapses through the RNA-binding factors and activities asso ...
... specific mRNA transport pathways by studying them. Despite this, it is abundantly clear that synaptic activity influences the distribution and motility of these entities, and based on this it has been proposed that mRNA localizes to active synapses through the RNA-binding factors and activities asso ...
Protection of tobacco cells from oxidative copper
... Toxicity of cupric and ferric ions: a preliminary study It is well known that copper-dependent oxidative stress is not prevented by common reducing agents such as ascorbate (AsA), glutathione, and other thiols, since these reducing agents contribute to reproduce the Fenton-active catalyst Cu+ from C ...
... Toxicity of cupric and ferric ions: a preliminary study It is well known that copper-dependent oxidative stress is not prevented by common reducing agents such as ascorbate (AsA), glutathione, and other thiols, since these reducing agents contribute to reproduce the Fenton-active catalyst Cu+ from C ...
Prospore Membrane Formation Defines a Developmentally
... vesicle fusion events in the secretory pathway, termed the soluble NSF attachment protein receptor (SNARE)1 hypothesis, in which fusion of transport vesicles with the appropriate target membrane is controlled by SNARE complexes (Söllner et al., 1993; Søgaard et al., 1994; Rothman, 1994). According t ...
... vesicle fusion events in the secretory pathway, termed the soluble NSF attachment protein receptor (SNARE)1 hypothesis, in which fusion of transport vesicles with the appropriate target membrane is controlled by SNARE complexes (Söllner et al., 1993; Søgaard et al., 1994; Rothman, 1994). According t ...
chlamydomonas gymnogama and - The Journal of Cell Biology
... mamembrane is released as part of a continual almost certainly hydrolyzes some glycosidic linkturnover process (14). This plus the presence of ages and strips some of the sugars from the enzymes on cell walls (31) emphasize the fact that carbohydrate part of the glycoprotein. Thus, it is the wall is ...
... mamembrane is released as part of a continual almost certainly hydrolyzes some glycosidic linkturnover process (14). This plus the presence of ages and strips some of the sugars from the enzymes on cell walls (31) emphasize the fact that carbohydrate part of the glycoprotein. Thus, it is the wall is ...
2/6/12 Bacterial Growth
... close to neutral even though the external pH is highly acidic or basic – Internal pH has been found to be as low as 4.6 and as high as 9.5 in extreme acido- and alkaliphiles, respectively ...
... close to neutral even though the external pH is highly acidic or basic – Internal pH has been found to be as low as 4.6 and as high as 9.5 in extreme acido- and alkaliphiles, respectively ...
A Pseudomonas aeruginosa Type VI Secretion Phospholipase D Effector Targets Both Prokaryotic and Eukaryotic Cells
... the peptidoglycan cell wall (Russell et al., 2011). Tse2 is a cytoplasmic effector that acts as a potent inhibitor of target cell proliferation (Li et al., 2012). And an Rhs (rearrangement hotspot) protein from Dickeya dadantii was shown to be exported by a T6S system, and its C-terminal domain carr ...
... the peptidoglycan cell wall (Russell et al., 2011). Tse2 is a cytoplasmic effector that acts as a potent inhibitor of target cell proliferation (Li et al., 2012). And an Rhs (rearrangement hotspot) protein from Dickeya dadantii was shown to be exported by a T6S system, and its C-terminal domain carr ...
Matching Terms Test
... pocket folds for large molecules to enter the cell basic substance for life produces, stores & packages secretion for discharge from the cell cell structures that help with function creates even cell division allows for transport of materials forms chromosomes contain digestive enzymes that destroy ...
... pocket folds for large molecules to enter the cell basic substance for life produces, stores & packages secretion for discharge from the cell cell structures that help with function creates even cell division allows for transport of materials forms chromosomes contain digestive enzymes that destroy ...
The Arabidopsis Exocyst Complex Is Involved in Cytokinesis and
... subunit by coimmunoprecipitation with the remaining subunits (Guo et al., 1999a). Electron microscopy and analyses of cargo protein trafficking in yeast exo84 mutants indicated that Exo84 is involved in the post-Golgi stage of secretion (Zhang et al., 2005b). The same study demonstrated that Exo84 p ...
... subunit by coimmunoprecipitation with the remaining subunits (Guo et al., 1999a). Electron microscopy and analyses of cargo protein trafficking in yeast exo84 mutants indicated that Exo84 is involved in the post-Golgi stage of secretion (Zhang et al., 2005b). The same study demonstrated that Exo84 p ...
Cells as Tensegrity Structures: Architectural Basis of the Cytoskeleton
... features of both continuum mechanics and discrete network modeling approaches, and allows developing a model of a complex structure without having to relay on a detailed description of microstructural geometry or boundary conditions. The key premise of the affine approximation is that microstructura ...
... features of both continuum mechanics and discrete network modeling approaches, and allows developing a model of a complex structure without having to relay on a detailed description of microstructural geometry or boundary conditions. The key premise of the affine approximation is that microstructura ...
Plant architecture without multicellularity: quandaries over patterning
... regions (Ranjan et al., 2015) suggests that nuclear populations in Caulerpa may be functionally distinct. To reconcile these observations, it is tantalizing to speculate of a nuclear division of labor into transcriptionally active and inert nuclei, analogous to the specification of somatic and germl ...
... regions (Ranjan et al., 2015) suggests that nuclear populations in Caulerpa may be functionally distinct. To reconcile these observations, it is tantalizing to speculate of a nuclear division of labor into transcriptionally active and inert nuclei, analogous to the specification of somatic and germl ...
Cilia and Flagella: The Basics
... Problem in basal body caused by genetically mutated cilia Numerous consequences, ranging from obesity to mental retardation ...
... Problem in basal body caused by genetically mutated cilia Numerous consequences, ranging from obesity to mental retardation ...
article - Nature
... In addition, plant CaM may be involved in gravitropic responses, phytochromeinduced responses, and hormone-mediated processes[2,3]. The studies of the cellular and subcellular distribution of CaM in situ are essential for understanding the function of CaM in cells. Precise knowledge of the subcellul ...
... In addition, plant CaM may be involved in gravitropic responses, phytochromeinduced responses, and hormone-mediated processes[2,3]. The studies of the cellular and subcellular distribution of CaM in situ are essential for understanding the function of CaM in cells. Precise knowledge of the subcellul ...
chlamydomonas gymnogama and
... during mating in C. reinhardtii (5). This could lead linkages make a great deal of difference in the final to loss of some real wall components, and result in organization of the components. We have observed the gradual dissolution of the old mother wall a different wall composition. In discussing h ...
... during mating in C. reinhardtii (5). This could lead linkages make a great deal of difference in the final to loss of some real wall components, and result in organization of the components. We have observed the gradual dissolution of the old mother wall a different wall composition. In discussing h ...
PDF
... live imaging of prepupal eversion of the wing disc. KEY WORDS: Drosophila, Live imaging, Lineage tracing, Multicolor ...
... live imaging of prepupal eversion of the wing disc. KEY WORDS: Drosophila, Live imaging, Lineage tracing, Multicolor ...
Imaging the fate of histone Cse4 reveals de novo replacement in S
... Figure 3. Cell cycle-dependent increase in centromere cluster intensity is a result of fluorophore maturation. (A) Relative intensity of centromeric clusters in asynchronously growing cells as the function of cell cycle stage and approximate time since entry into S phase. Values were corrected per 1 ...
... Figure 3. Cell cycle-dependent increase in centromere cluster intensity is a result of fluorophore maturation. (A) Relative intensity of centromeric clusters in asynchronously growing cells as the function of cell cycle stage and approximate time since entry into S phase. Values were corrected per 1 ...
The leaf is the fundamental unit of the shoot system, which is
... organ - a leaf- the number of leaf cells is not necessarily reflected in leaf shape or, in particular, in leaf size. Genetic analyses of leaf development in A. thaliana shows that a compensatory system(s) acts in leaf morphogenesis and an increase in cell volume might be triggered by a decrease in c ...
... organ - a leaf- the number of leaf cells is not necessarily reflected in leaf shape or, in particular, in leaf size. Genetic analyses of leaf development in A. thaliana shows that a compensatory system(s) acts in leaf morphogenesis and an increase in cell volume might be triggered by a decrease in c ...
Biology: Cells the Fundamental Unit of Life
... engage students in the process of understanding this complex and exciting material. In order to understand the basic functions of human life, students need to understand how cells work, how basic cells function, and the role that parts of the cell play in its work. These basic cellular understanding ...
... engage students in the process of understanding this complex and exciting material. In order to understand the basic functions of human life, students need to understand how cells work, how basic cells function, and the role that parts of the cell play in its work. These basic cellular understanding ...
MES-1 and asymmetric embryo divisions
... Asymmetric localization of cytoplasmic factors and unequal cell division are fundamental to the development of all eukaryotes. When these mechanisms are used to generate distinct daughter cells during development, the two events must be coordinately regulated, to ensure the proper segregation of fac ...
... Asymmetric localization of cytoplasmic factors and unequal cell division are fundamental to the development of all eukaryotes. When these mechanisms are used to generate distinct daughter cells during development, the two events must be coordinately regulated, to ensure the proper segregation of fac ...
Author Guidelines for 8
... We propose a multi-target tracking (MTT) algorithm in a sequential Bayesian framework that computes cell velocities from video microscopy. Unlike the traditional tracking methods, our formulation does not involve the estimation of target states; instead, we estimate one-to-one target correspondences ...
... We propose a multi-target tracking (MTT) algorithm in a sequential Bayesian framework that computes cell velocities from video microscopy. Unlike the traditional tracking methods, our formulation does not involve the estimation of target states; instead, we estimate one-to-one target correspondences ...
Involvement of MMP-7 in invasion of pancreatic cancer cells through
... been shown to be the first and pivotal step in the invasion– metastasis process.1 However, the cellular and molecular mechanisms of invasion and metastasis in pancreatic cancer have not been fully elucidated. ‘‘Matrix metalloproteinase-7 has been implicated in tumour invasion–metastasis and in tumou ...
... been shown to be the first and pivotal step in the invasion– metastasis process.1 However, the cellular and molecular mechanisms of invasion and metastasis in pancreatic cancer have not been fully elucidated. ‘‘Matrix metalloproteinase-7 has been implicated in tumour invasion–metastasis and in tumou ...
The temperature effect during pulse application on cell membrane
... more pronounced in V79 cell line (Fig. 2). At 37 °C the cell membrane fluidity of studied cell lines differs, being less fluid in B16F1 than in V79 due to higher proportion of less fluid domain type 3 and higher order parameters of domain types 2 and 3 (Fig. 2). The morphology and size of the cells did ...
... more pronounced in V79 cell line (Fig. 2). At 37 °C the cell membrane fluidity of studied cell lines differs, being less fluid in B16F1 than in V79 due to higher proportion of less fluid domain type 3 and higher order parameters of domain types 2 and 3 (Fig. 2). The morphology and size of the cells did ...
C 2. Electrical properties of the heart a. Explain
... These conducting cells are of a large diameter and have many gap junctions, transmitting the action potential rapidly throughout the ventricles. The transmission time for the entire Purkinje system is 30 ms. Propagation to the entire ventricular muscle takes another 30 ms, yielding a coordinated con ...
... These conducting cells are of a large diameter and have many gap junctions, transmitting the action potential rapidly throughout the ventricles. The transmission time for the entire Purkinje system is 30 ms. Propagation to the entire ventricular muscle takes another 30 ms, yielding a coordinated con ...
Cell cycle
The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication (replication) that produces two daughter cells. In prokaryotes which lack a cell nucleus, the cell cycle occurs via a process termed binary fission. In cells with a nucleus, as in eukaryotes, the cell cycle can be divided into three periods: interphase, the mitotic (M) phase, and cytokinesis. During interphase, the cell grows, accumulating nutrients needed for mitosis, preparing it for cell division and duplicating its DNA. During the mitotic phase, the cell splits itself into two distinct daughter cells. During the final stage, cytokinesis, the new cell is completely divided. To ensure the proper division of the cell, there are control mechanisms known as cell cycle checkpoints.The cell-division cycle is a vital process by which a single-celled fertilized egg develops into a mature organism, as well as the process by which hair, skin, blood cells, and some internal organs are renewed. After cell division, each of the daughter cells begin the interphase of a new cycle. Although the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for initiation of cell division.