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Particular cell type

Xem 1-13 trên 13 kết quả Particular cell type
  • Multicellular organisms comprise a variety of cell types that have the same genotype but distinct phenotypes. This diversity is possible because of the establishment of a specific epigenetic landscape that stabilizes gene expression profiles that are exclusive for a particular cell type.

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  • Cell biology studies the structural and physiological properties of cells, including their behaviors, interactions, and environment. This is done on both the microscopic and molecular levels, for single-celled organisms such as bacteria as well as the specialized cells in multicellular organisms such as humans. Understanding the structure and function of cells is fundamental to all of the biological sciences. The similarities and differences between cell types are particularly relevant to molecular biology....

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  • Lamins are major structural components of the nuclear envelope in multi-cellular eukaryotes. Particularly A-type lamins are also located in the nucleoplasm, likely involving a specific binding partner, lamina-associated polypeptide 2a (LAP2a). LAP2a–lamins A⁄C complexes in the nucleo-plasm have been implicated in the regulation of gene expression by various means.

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  • This review summarizes the most recent state of haemo-globin (Hb) research based on the literature and our own results. In particular, an attempt is made to form a unified picture for haemoglobin function by reconciling the cooperative oxygen binding with the stabilization of the bound dioxygen in aqueous solvent. The HbA molecule contains two types ofabcontacts. One type is thea1b2or a2b1 contacts, called sliding contacts, and these are strongly associated with the cooperative binding of O2to the a2b2 tetramer. ...

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  • Harrison's Internal Medicine Chapter 116. Immunization Principles and Vaccine Use Principles of Immunization The immune system, composed of a variety of cell types and soluble factors, is geared toward the recognition of and response to "foreign" substances termed antigens. Vaccines convey antigens from living or killed microorganisms (or protein or carbohydrate molecules derived from these antigens) to elicit immune responses that are generally protective but can occasionally backfire and cause harm to the recipient.

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  • The immune system, composed of a variety of cell types and soluble factors, is geared toward the recognition of and response to "foreign" substances termed antigens. Vaccines convey antigens from living or killed microorganisms (or protein or carbohydrate molecules derived from these antigens) to elicit immune responses that are generally protective but can occasionally backfire and cause harm to the recipient.

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  • Growth in MCFC shipments is expected for 2012; FCE can currently manufacture up to 90 MW per year at its plant in Connecticut and as of 30 April 2012 its backlog stood at 52.4 MW. In Korea in particular, where there have been a number of megawatt-class installations already, demand for fuel cell baseload power is growing rapidly and delivery of stacks to POSCO Energy under a 70 MW order has been accelerated. The Seoul Metropolitan Government intends to install 50 MW of distributed fuel cell power in 2012, mainly to support the subway system, towards a target total for...

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  • Natural photoprotection is provided by structural proteins in the epidermis, particularly keratins and melanin. The amount of melanin and its distribution in cells is genetically regulated, and individuals of darker complexion (skin types IV–VI) are at decreased risk for the development of acute sunburn and cutaneous malignancy. Other forms of photoprotection include clothing and sunscreens. Clothing constructed of tightly woven sun-protective fabrics, irrespective of color, affords substantial protection. Wide-brimmed hats, long sleeves, and trousers all reduce direct exposure.

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  • Asynchronous Transfer M o d e ( ATM) ATM looks set to become the first universal telecommunication technology, capable of switching and transporting all types of telecommunication connection (e.g. voice,data video, multimedia). It willformthebasisofthefuture broadbandintegratedservicesdigitalnetwork(B-ISDN). Because of the anticipated importance of ATM, wediscussherethetechnicalprinciples and terminology in depth, defining the main jargon and explaining what marks out ATM from its predecessors.

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  • The traditional classification of acute leukemia used criteria proposed by the French– American–British Cooperative Group (FAB) , using the 30% bone marrow blast cell cutoff (Bennett et al, 1985). This classification system originally distinguished different leukemia types by morphologic features and cytochemical studies, particularly myeloperoxidase (or Sudan black B) and non-specific esterase staining. It was revised to include leukemia types that could only be accurately identified with the addition of immunophenotyping or electron microscopic studies (Bennett et al., 1991)....

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  • Encephalitis and Encephalomyelitis: Treatment Most types of paraneoplastic encephalitis and encephalomyelitis respond poorly to treatment. Stabilization of symptoms or partial neurologic improvement may occasionally occur, particularly if there is a satisfactory response of the tumor to treatment. The roles of plasma exchange, IVIg, and immunosuppression have not been established. Approximately 30% of patients with anti-Ma2-associated encephalitis respond to treatment of the tumor (usually a germ-cell neoplasm of the testis) and immunotherapy.

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  • The probable explanation for the absence of statistical significant differences in many of the cells in Figure 7 is the relatively small number of regions in some combinations of D-P and Structural types (see Table 3 below). The IR type is particularly small, with only 23 regions. Combining the IR type with another D-P type might reduce the problem of small sample sizes. On the basis of the pattern of results in Figure 4 it could be argued that the best way to combine types would be to retain the two accessible types (IA and PRA) and to merge...

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  • The 4-aminobutyrate type A receptor-associated protein (GABARAP) is a versatile adaptor protein that plays an important role in intracellular vesi-cle trafficking, particularly in neuronal cells. We have investigated the structural determinants underlying the interaction of GABARAP with cal-reticulin using spectroscopic and crystallographic techniques.

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