what are the different types of computer networks explain each network in detail
Tài liệu The OSI Model: Understanding the Seven Layers of Computer Networks ppt
Ngày tải lên :
24/01/2014, 09:20
... can do their work in either hardware or software or, as with most protocol stacks, in a com-
bination of the two. The nature of these stacks is that the lower layers do their work in hardware or ... understanding the details of computer networking.
Since the discussion of networking often includes talk of
“extra layers”, this paper will address these unofficial
layers as well.
Finally
, this paper ... and what computer vendor supports them.
The main benefits of the OSI model include the following:
ã Helps users understand the big picture of networking
ã Helps users understand how hardw
are...
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What are the possible causes of child abuse? pot
Ngày tải lên :
21/07/2014, 20:20
... result,
often worse than what the parents can mete out.
People living in the country are less prone to child-abuse
simply because they do not have the stress of city-living.
They are still ... love and care, they do not need
anything else. But if any of these are not given, they may
become very demanding. In turn the parents may turn on
them and this can lead to abuse of the children. ... So the
demands of work is already enough to fray the nerves of
the parents. Further demands from the children at home
might cause a nervous reaction on the part of the parents.
Some parents,...
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báo cáo khoa học: "Innovation in mental health services: what are the key components of success?" pot
Ngày tải lên :
10/08/2014, 11:20
... obtained in the
spring of 2008, and the evaluation was completed by
summer 2010.
Results of the evaluation and discussion of the
findings
The findings summarised in this article represent the main
outcomes ... and
so are not limited to mental health. Taking both of
the se points into consider ation, the findings will be dis-
cussed now in terms of the main f eatures of the model
(Figure 1) relating to ... (4)
The versatility and scope of the project 36% (4)
The value and strength of original idea 36% (4)
The strength of the intellectual input into the project 27% (3)
Processes for embedding and link...
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What are the advantages and disadvantages of supermarkets
Ngày tải lên :
23/10/2013, 02:15
... shops may be the only source of living of then.
To conclude I would like to express my opinion which rather possitive. I think that
supermarkets are great creatures and the more of them the better. ... "two
for the pirce of one" are always found there.
One the other hand shopping in supermarkets can be annoying beckause there is a
big choice which can cause confusion.
People often buy ... buy things they do not actually
need. For many of us the major disadvantage of shopping in supermarkets id that it
is time consuming and it takes a while to getthere and back.
Big stores are...
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What are the advantages of being sefl-employed
Ngày tải lên :
27/10/2013, 09:15
... Most of what you earn doesn't go into your pocket. In fact, the money you get from your employer is
skimmed off your paycheck in many ways. What are you left with? Only a fraction of what ... you have what it takes to make this dream a reality, or will the disadvantages of being your own
boss threaten to swallow up that business of yours?
Think of all the advantages of being self-employed ...
currently getting the business in the door and holding you accountable for the work that needs to be
done.
Your bank account and other financial resources may not be compatible with being your own...
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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
Ngày tải lên :
19/02/2014, 17:20
... 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 knowl-
edge. Even though one single ... that bimaxillary protrusion is
more acceptable in Mexican females than in males
within the scope of the Latin community.
An interesting fi nding was the fact thatgroups O and
P assessed male profi ... Latin spe-
cialists training might in uence their perceptions? Is
culture shock affecting perception of profi le attractive-
ness as has been shown by other studies? It would be
interesting...
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Nano means one billionth major aspects of nanotechnology what is it how did it come about what are the social implications
Ngày tải lên :
15/03/2014, 22:13
... Present
(A) a hand holding a computer chip.
(B) computer chip
(C) living cell placed on the chip
(D) two nanocomputers beside the cell.
(E) shows an irregular protein from the cell on the
lower right, ... the
lower right, and a cylindrical gear made by
molecular manufacturing at top left.
(F) shows two atoms in the protein,
(G) reveals the nucleus of the atom as a tiny speck.
Below: 35 xenon ...
Major Aspects of Nanotechnology
Major Aspects of Nanotechnology
ã
What is it?
ã
How did it come about?
ã
What are the social implications?
ã
What does this mean for the future?
References
References
Calvin...
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Báo cáo khoa học: Two different types of hepcidins from the Japanese flounder Paralichthys olivaceus ppt
Ngày tải lên :
30/03/2014, 20:20
... positions of cysteine
residues in Hep-JF2 of Japanese flounder are the same
as those of human hepcidin, while the number and posi-
tions of cysteine residues in Hep-JF1 are the same as
those in type ... 5263
The human and mouse hepcidin genes are predomin-
antly expressed in the liver [1,2]. Expression of mam-
malian hepcidins is induced by interleukin-1,
interleukin-6, LPS and iron overloading ... is different from that of human,
mouse and other reported fish hepcidins. In liver, some
cells expressed both types of hepcidins, while other
cells expressed only one of them or neither of them
(Fig....
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Outline môn Tiếng Anh - What are the good and bad points of advertising from the view point of a consumer?
Ngày tải lên :
02/06/2014, 15:10
... bad points of
What are the good and bad points of
advertising from the view point of a consumer?
advertising from the view point of a consumer?
Topic 12
LEAFLET
WEAKNESSES
Advertising leaflets ... advertise for their
products such as singer,
model when their fans saw
their stars advertised in the
television they will be
interested in the purchase of
that products because she/he
is their ...
create the trust for
customers .The customers
usually receive the leaflets
after that they throw away
or if they read it but they
can’t remember information
of the suppliers
Advertising has...
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Báo cáo khoa học: "The interaction between different types of activated RAW 264.7 cells and macrophage inflammatory protein-1 alpha" potx
Ngày tải lên :
09/08/2014, 09:20
... elucidated. Many types of
inflammatory cel ls are involved in RPI, but pulmonary
macrophages ( MF) are the most prominent [1]. Differ-
ent populations of activated MF can arise in response
to distinct stimuli. ... [8,9].
The hypothesis of a perpetual cascade of cy tokines
leading to RPI is a reasonable explanati on [10]. However,
the hypothesis does not specify which cell or cytokine
dominates in the cascade ... from a difference in the original activated s tates
of MF.
Different activated MF in RPI are induced by distinct
cytokines generated by damaged cells after g-ray irradia-
tion of the lung. Classical...
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Báo cáo y học: "Daily oviposition patterns of the African malaria mosquito Anopheles gambiae Giles (Diptera: Culicidae) on different types of aqueous substrates" pptx
Ngày tải lên :
10/08/2014, 09:20
... three different days.
At the end of the experiment, the mosquitoes that had laid
in each group were identified by dissecting each under a
dissection microscope and examining their ovaries for the
presence ... and JG co-ordinated and/or supervised
the work. All authors actively contributed to the interpre-
tation of the findings and development of the final man-
uscript and approved the final manuscript.
Acknowledgements
We ... factor in the
diversity of oviposition patterns in the field in different
geographical locations.
The differences in the mosquito feeding times did not
affect the timing of peak oviposition, although...
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Báo cáo y học: "What are the challenges of translating positive trial results in severe sepsis into clinical practice" pptx
Ngày tải lên :
12/08/2014, 18:21
... diminish the potential impact of
adopting novel therapies/strategies in the treatment of this
common and serious syndrome.
Conclusion
The confusing terminology and woolly definitions
surrounding ... Spain.
Jan Bakker, Director of Intensive Care, Isala Klinieken Zwolle,
Zwolle, The Netherlands. Bakker is a study investigator in the
ongoing international, multicentre, open label study of rhAPC
in ... be
included in the definition of sepsis. Perhaps unsurprisingly,
they essentially recreated the ‘PIRO’ model. Vincent reported
that he had participated in the consensus conference held in
Washington,...
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Báo cáo y học: "A survey of accessibility and utilisation of chiropractic services for wheelchair-users in the United Kingdom: What are the issues" pps
Ngày tải lên :
13/08/2014, 15:21
... care
for pain control however t he source of pain was not
identified in this study. The main motivations for wheel-
chair-users seeking care and their key expectations of
treatment are outlined in Tables ... patient files in their reporting of results therefore
responses which relied on memories spanning five years
increases the likihood of inaccurate recollection of infor-
mation. In addition, respondents ... must
be considered in the interpretation of results. Firstly, the
number of r esponses received prevents the results being
generalised to other chiropractors in the UK. However,
the issues raised...
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Báo cáo y học: " Infections of respiratory or abdominal origin in ICU patients: what are the differences" docx
Ngày tải lên :
13/08/2014, 20:21
... bdominal infections [6]. Similarly,
in a study of 5,878 patients from Australia and New
Zealand, the site of infection was pulmonary in 50% and
abdominal in 19% of the episodes [11] . In another ... percentage of correct classifications is 71.4.
Figure 1 The odds ratios of developing secondary infection in
the abdominal group for different durations of ICU stay. The
solid line represents the point ... identical in the two groups.
Conclusions: There are important differences in patient profiles related to the site of in fection; however, mortality
rates in these two groups of patients are identical.
Introduction
Infection...
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