what is network explain the different types of computer networks
Tài liệu The OSI Model: Understanding the Seven Layers of Computer Networks ppt
... overview of the network process, whichcan then act as a framework for understanding the details of computer networking.Since the discussion of networking often includes talk of “extra layers”, this ... not offi-cially part of the OSI model.They refer to the non-technical aspects of computer networking that often inter-fere with the smooth design and operation of the network. Layer 8 is ... than a layer. While they are one of the reasons the network exists, users can also be a big part of the need for troubleshooting. This is especial-ly true when the users have computers at home...
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What is known about the effectiveness of economic instruments to reduce consumption of foods high in saturated fats and other energy-dense foods for preventing and treating obesity? docx
... years (51). Food provision Another economic instrument is provision of food of specific types and portions. There is a small body of evidence supporting the use of this direct approach to ... from HEN. This HEN evidence report is a commissioned work and the contents are the responsibility of the authors. They do not necessarily reflect the official policies of WHO/Europe. The reports ... panel of Danish food consumers. These two studies helped to distinguish the effects of focusing policies on particular types of foods as opposed to particular types of nutrients. The first...
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Báo cáo khoa học: Two different types of hepcidins from the Japanese flounder Paralichthys olivaceus ppt
... (Fig. 5). The effect of LPS on the expressions of Hep-JF1 and Hep-JF2 is similar toits effect on the expression of mouse type 1 hepcidin.These results raise the possibility that the Japaneseflounder ... othercells expressed only one of them or neither of them(Fig. 6). These results indicate that the regulation of gene expression of fish hepcidins is highly diverged in different species. Interestingly, ... Thisexpression pattern is different from that of human,mouse and other reported fish hepcidins. In liver, somecells expressed both types of hepcidins, while othercells expressed only one of...
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Tài liệu Báo cáo khoa học: Down-regulation of heme oxygenase-2 is associated with the increased expression of heme oxygenase-1 in human cell lines docx
... The intracellular concentration of heme is maintained by the rate of its synthesis and degrada-tion [1]. Many enzymes and their regulators areresponsible for heme synthesis [1,2]. On the otherhand, ... that is important in the maintenance of cellu-lar heme homeostasis. These results suggest that HO-2 may down-regulate the expression of HO-1, thereby directing the co-ordinated expression of HO-1 ... blot analysis of HO-1, HO-2 and GAPDH mRNAs. The intensity of the signals representing HO-1 orHO-2 mRNA was normalized with respect to the intensity of the 18S rRNA signal. The ratio of each normalized...
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Tài liệu HOW TO HANDLE DIFFERENT TYPES OF RETAIL SHOPPERS AND MAKE SHOPPING A MEMORABLE EXPERIENCE FOR THEM pdf
... depends upon the type and amount of the discounts offered by the store. The only thing that attracts them to a store is the offers and discounts offered by the retailer. They are the cash generators. ... do for them, is not enough. Yet the more services you offer them, the more privileged they feel, the more they will recommend your store to others. b) DISCOUNT CUSTOMERS- their visit frequency ... them by the sales personnel. STRATEGY TO HANDLE SUCH TYPE OF CUSTOMERS: These types of customers can be easily identified by the way they react to the assistance offered to them. Such types...
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Tài liệu Orthodontists and patient´s aesthetic perception to different types of profi les modifi ed by a computer program pdf
... protrusion or retrusion. This suggests that the position of the lower jaw is more critical than the position of the upper jaw in the process of evalu-ating patients, either with or without dental ... to be placed at the end of the attractive-ness table. This similarity in perception confirms the usual treatment aim, that is to say, a straight profile, even in the case of Mexican patients. ... surgical success at the end of treatment can depend more on the proper anterior-posterior position of the lower jaw to a greater extent than the position of the upper jaw in cases of upper and lower...
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Tài liệu Báo cáo Y học: Thermostability of manganese- and iron-superoxide dismutases from Escherichia coli is determined by the characteristic position of a glutamine residue pdf
... activityHydrogen peroxide, the product of the SOD reaction, is an inhibitor of SODs and an inactivator of FeSOD. It is often used to distinguish between the two types of isoenzyme, particularly ... with the iron metal at the active site. The presence of iron is therefore a prerequisite for its effect and suggeststhat the absence of reactivity with the MnSOD mutants is due to the lack of ... in the mononuclear SODs is not governed byone or even two residues, but is most likely accomplished by the concerted effects of a combination of key residues.Further analysis of these and other...
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EVALUATION OF DIFFERENT TYPES OF CHEST SYMPTOMS FOR DIAGNOSING PULMONARY TUBERCULOSIS CASES IN COMMUNITY SURVEYS pot
... notaffect the calculation of the prevalence of the disease. In another study10 in North Arcot district(now known as Kancheepuram district) of Tamilnadu it was shown that 61.4% (4932/8032) of the ... respectively. The yield of cases according to the intervalbetween the onset of cough and the time of elicitation of cough is given in Table-3. It could be seen thatproportion of the cases yielded ... Dr. Selvakumarand his staff of Bacteriology Department forreporting the results. The authors thank the staff of Statistics and Electronic Data Processing (EDP)Divisions of the Epidemiology Unit...
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Báo cáo khoa học: "Chinese Term Extraction Using Different Types of Relevance" potx
... In this study, CC is defined as their co-occurrence in the same sentence of the domain corpus. For each document, a graph of term candidates is first constructed. In the graph, a node is a ... 1. The weight score of each node are ob-tained by (1), iteratively. The significance of each term candidate in the domain specific cor-pus is then derived based on the significance of other ... on the hy-pothesis that “if a candidate occurs frequently in a few documents of a domain, it is likely a term”. Limited distribution information of term candi-dates in different documents often...
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What Is Network Security Monitoring? ppt
... understand the nature of the alert and the probability the intruder can accomplish her goal.Resolving the alert at hand isn’t the only item of concern. What else has an intruder attempted? There ... Ethereal, we see the DUMP Reply tells the intruder what RPC services the target offers. Again, by looking at the same data as seen by the remote party, we can evaluate the likelihood of the ... /~root HTTP/1.0.This is the ASCII representation of the application data; the hexadecimal value is also shown.On the left-hand side of the screen in Figure 10.1, DNS and Whois information has...
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Báo cáo khoa học: Drosophila proteins involved in metabolism of uracil-DNA possess different types of nuclear localization signals pdf
... importance of the pres-ence of the PAA tripeptide and the ID dipeptide, and the role of the PAAK segment in nuclear targeting.These studies also explained why the N-terminallytruncated dUTPase isoform ... 2010 The Authors Journal compilation ª 2010 FEBS isoform (LD-DUT). The partial segment MKID(15–18),present on the short isoform, cannot drive nuclearimport. In the case of the short isoform ... of the two NLS segments. The close overlap is indi-cated by the observation that the two colors (green andturquoise) overlap considerably, and it is mostly the green color that is seen as the...
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WHAT''''S IT WORTH? THE ECONOMIC VALIE OF COLLEGE MAJORS potx
... AM 37ã Comparison Across Major Groups The ACS data are best used to discuss distributional characteristics of the underlying population. However, we also include the number of degree holders ... Hispanics earn the least in Theology and Religious Vocation majors with median earnings of $30,000, which is less than the White and African-American medians in this field. 3 This analysis ... AM 36ã Comparison Across Major Groups The ACS data are best used to discuss distributional characteristics of the underlying population. However, we also include the number of degree holders...
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Báo cáo khoa học: Proteolytic degradation of nitric oxide synthase isoforms by calpain is modulated by the expression levels of HSP90 potx
... described in the Exper-imental procedures. The areas of the peaks were normalized on the basis of the amount of protein loaded on the column. The val-ues reported are the arithmetical mean ± SD of three ... andobviously the isolated proteins are degraded by the protease. On the basis of these observations, we can explain not only the protective effect exerted byHSP90 on the digestion of NOS isozymes, ... hindrance and a reduction in the catalytic efficiency of the protease.Thus, the recruitment of calpain in the HSP90–NOS complexes reduces the extent of the proteolysis of these two proteins. We have...
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Báo cáo khoa học: Myocyte enhancer factor 2B is involved in the inducible expression of NOX1⁄ NADPH oxidase, a vascular superoxide-producing enzyme ppt
... usingNOX1-deficient mice [19]. The basal level of the NOX1 transcript is much lower than the levels of other NOX isoforms expressed in vascular tissue,whereas inducible expression of NOX1 has been docu-mented ... part in the induction of NOX1 expression [8–10].Except for the involvement of ATF-1, the entirepicture of the transcriptional regulation of the NOX1gene has not been clarified yet. In the upstreamregion ... expres-sion of the NOX1 transcript in CEC [12]. To clarify the molecular basis of the transcriptional activation of NOX1 in vascular tissue, we delineated the pro-moter region implicated in the up-regulation...
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the various types of skiing
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