Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Securing Collaborative Spectrum Sensing against Untrustworthy Secondary Users in Cognitive Radio Networks
Progress in collaborative networks continues showing a growing number of
manifestations including virtual organizations, virtual enterprises, dynamic supply
chains, professional virtual communities, collaborative virtual laboratories, etc. with a
wide spectrum of application domains. The realization that all these collaborative forms
represent variations of a more general paradigm has lead to their consolidation into
Collaborative Networks (CN) as anew scientific discipline.
The wide proliferation of wireless communications unavoidably leads to the scarcity
of frequency spectra. On one hand, wireless users become increasingly difficult to find
available frequency bands for communications. On the other hand, many preallocated
frequency bands are ironically under-utilized and thus the resources there are simply
wasted. This situation leads to the introduction of cognitive radio, which was
proposed in the last decade to address this dilemma.
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The three year term of the strategy is too short to measure significant changes in nutritional status
and mortality as outcome indicators. Instead, the results matrix gives details of the output and
outcome (impact) and activity (process) indicators and their source of verification against which
effectiveness of the strategy will be measured. The progress made in the implementation of the
strategy will be reviewed and updated on an annual basis.
The Woodrow Wilson International Center for Scholars,
established by Congress in 1968 and headquartered in Washington, D.C.,
is a living national memorial to President Wilson. The Center’s mission
is to commemorate the ideals and concerns of Woodrow Wilson by providing
a link between the worlds of ideas and policy, while fostering
research, study, discussion, and collaboration among a broad spectrum
of individuals concerned with policy and scholarship in national and
Other donors also work across the public health spectrum. AusAID has a substantial, broad health portfolio including programs in MCH, HIV/AIDS, pandemic influenza and health systems strengthening, which focuses on financing and human resources. AusAID and USAID work particularly closely and collaboratively to ensure effective coordination and complementarity of efforts. JICA has a broad health portfolio that complements the GHI, including programs in MCH, pandemic influenza, TB, rational drug use and vaccine production.
he workgroup identiied four goals that were grounded in the following public health areas:
(1) surveillance and evaluation: improve collection, analysis, dissemination, and reporting of
COPD-related public health data; (2) public health research and prevention strategies: improve
understanding of COPD development, prevention, and treatment; (3) programs and policies:
increase efective collaboration among stakeholders with COPD-related interests; and (4)
communication: heighten awareness of COPD among a broad spectrum of stakeholders and
decision makers (Table 1).