measuring variability and spread
Cambridge.University.Press.A.Clinicians.Guide.to.Statistics.and.Epidemiology.in.Mental.Health.Measuring.Truth.and.Uncertainty.Jul.2009.pdf
Ngày tải lên :
24/09/2012, 09:06
... around One can randomize, and not blind a study (open randomized studies) and this can be legitimate Thus, blinding is optional; it can be present or not, depending on the study; but randomization ... disabuse us of our mistaken clinical observations Randomizing liberals and conservatives, blondes and brunettes How we engage in randomization? We it by randomly assigning patients to a treatment versus ... numbers of blondes and brunettes in both groups, and equal numbers of liberals and conservatives (we won’t prejudge which group would have a worse outcome), and equal 22 Chapter 5: Randomization numbers...
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Multi-Carrier and Spread Spectrum Systems
Ngày tải lên :
02/03/2013, 16:58
... Multi-Carrier and Spread Spectrum Systems K Fazel Marconi Communications GmbH Germany and S Kaiser German Aerospace Center (DLR) Germany Multi-Carrier and Spread Spectrum Systems Multi-Carrier and Spread ... frequency fDmax and the Doppler spread fDspread The Doppler spread is the bandwidth of the Doppler power density spectrum and can take on values up to two times |fDmax |, i.e., fDspread 2|fDmax ... European DAB standard [11] This success continued with the choice of OFDM for the European DVB-T standard [13] in 1995 and later for the WLAN standards HIPERLAN/2 and IEEE802.11a [15][30] and recently...
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iec 60255-5 electrical relays - insulation coordination for measuring relays and protection equip
Ngày tải lên :
25/12/2013, 10:48
... International Standards transparently to the maximum extent possible in their national and regional standards Any divergence between the IEC Standard and the corresponding national or regional standard ... on measuring relays and protection equipment - Section 2: Shock and bump tests - IEC 60255-21-3:1993, Electrical relays Part 27: Vibration, shock, bump and seismic tests on : measuring relays and ... expression "measuring relays and protection equipment" in this standard In particular, this standard, specifies the following: - definition of terms; - guidance for the selection of clearances and creepage...
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iec 60255-6 electrical relays - measuring relays and protection equipment
Ngày tải lên :
25/12/2013, 10:49
... -1.1 ii Standard reference values of influencing quantities and faclors anYsrandurd values o j t h e i r riomi.wl and extreme ranges Siandard reference values of influencing quantities and faclors ... Licensed by Information Handling Services 255-6 O IEC -7- ELECTRICAL RELAYS Part 6: Measuring relays and protection equipment SECTION ONE - GENERAL Scope and objecí This standard specifies the general ... frequente la tolérance peut eire prli\ gr:iiidc.Quand le relais es! tr¿s sensible a la friquence et quand on demande une grande précision, on pourra deniander des toliranccs plue faibles - Dans IC...
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iec 60255-22-5 electrical relays - electrical disturbance tests for measuring relays and protecti
Ngày tải lên :
25/12/2013, 10:50
... report on ONE STANDARD and ONE STANDARD ONLY Enter the exact number of the standard: (e.g 60601-1-1) Q6 standard is out of date standard is incomplete standard is too academic standard is too superficial ... International Standards transparently to the maximum extent possible in their national and regional standards Any divergence between the IEC Standard and the corresponding national or regional standard ... 5: Insulation coordination for measuring relays and protection equipment – Requirements and tests IEC 60255-6:1988, Electrical relays – Part 6: Measuring relays and protection equipment IEC 61000-4-5:1995,...
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Tài liệu Chapter 6 Bandwidth Utilization: Multiplexing and Spreading pptx
Ngày tải lên :
16/02/2014, 20:20
... Note Bandwidth utilization is the wise use of available bandwidth to achieve specific goals Efficiency can be achieved by multiplexing; privacy and anti-jamming can be achieved by spreading ... Mobile Phone System (AMPS) uses two bands The first band of 824 to 849 MHz is used for sending, and 869 to 894 MHz is used for receiving Each user has a bandwidth of 30 kHz in each direction ... SPECTRUM In spread spectrum (SS), we combine signals from different sources to fit into a larger bandwidth, but our goals are to prevent eavesdropping and jamming To achieve these goals, spread spectrum...
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Tài liệu Báo cáo khoa học: Role for nectin-1 in herpes simplex virus 1 entry and spread in human retinal pigment epithelial cells docx
Ngày tải lên :
18/02/2014, 14:20
... of HSV-1 into human T lymphocytes and trabecular meshwork cells, and is expressed in many fetal and adult human tissues, including the lung, liver, kidney, and lymphoid tissues [7,8,16] HVEM ... CHO-K1 cells, and the absorbance (A) signals representing entry into RPE cells were very similar to those seen with HeLa and Vero cells Both HeLa and Vero cell are naturally susceptible and frequently ... cell body and filopodia Arrows and boxes in (D) and (E) highlight the presence of the virus particles on filopodia-like structures sufficient to infect 100% of nectin-1 CHO cells (Fig 2B, top and middle...
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Alternative Data U.S. Consumer Credit Reports: Measuring Accuracy and Dispute ImpactstsMichael A. Turner, Ph.D., Robin Varghese, Ph.D., Patrick D. pot
Ngày tải lên :
22/03/2014, 20:20
... Reports: Measuring Accuracy and Dispute Impacts Abstract This report, titled U.S Consumer Credit Reports: Measuring Accuracy and Dispute Impacts, assesses the accuracy and quality of data collected and ... Consumer Credit Reports: Measuring Accuracy and Dispute Impacts and attributes of data furnishers, and so any thorough exploration of socio-demographic variations of disputes and modifications should ... both inaccurate positive and negative scores (and credit standings) Potential changes in loan portfolio performance and capital allocation are beyond the scope of this study and not examined here...
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Báo cáo khoa học: "Measuring Importance and Query Relevance in Topic-focused Multi-document Summarization" doc
Ngày tải lên :
23/03/2014, 18:20
... Journal of Research and Development, 2(2):159–165 C Manning and H Schutze 1999 Foundations of Statistical Natural Language Processing MIT Press A Nenkova, L Vanderwende, and K McKeown 2006 A ... understanding conference In Proceedings of AAAI’05 L Vanderwende, H Suzuki, and C Brockett 2006 Microsoft research at duc 2006: Task-focused summarization with sentence simplification and lexical ... might make the task more challenging and allow more room for advances in query expansion and other summary focusing techniques References J Conroy, J Schlesinger, and D O’Leary 2006 Topic-focused...
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basic instrumentation measuring devices and basic pid control
Ngày tải lên :
28/05/2014, 14:12
... the controlled and manipulated variables; • sketch a simple block diagram and indicate set point, measurement, error, output and disturbances; • state the difference between open and closed loop ... pressure cylinders; • state the advantages and disadvantages of RTDs and thermocouples • state the effect on the indicated temperature for failures, open circuit and short circuit; Flux • state the ... fluid pressure; and erosion • identify the primary device, three-valve manifold and flow; transmitter in a flow measurement installation; • state the relationship between fluid flow and output signal...
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measuring efficiency and explaining failures in banking application to the russian banking sector
Ngày tải lên :
03/06/2014, 02:06
... technologies and much needed expertise, as well as competitive pressure on local banks (Anderson and Kegels, 1998) As of 2000, foreign banks in Czech Republic, Hungary and Poland controlled 66, 62 and ... State Bank” and “On Banks and Banking Activity” This law formally established the two-tier banking system and defined the “rules of the road”: how commercial banks could be set up and how State ... mobilized lots of money and shortly after crashed and did not return any funds For a detailed discussion on Russian financial crisis of 1998 and banks involvement, see Konstandina (2001) 9 Unscrupulous...
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Báo cáo sinh học: " Chloroquine is a potent inhibitor of SARS coronavirus infection and spread" pptx
Ngày tải lên :
19/06/2014, 08:20
... PR and TK provided critical reagents and revised the manuscript critically NS and SN along with MV and EB participated in the planning of the experiments, review and interpretation of data and ... chloroquine treatment reduces SARS-CoV infection and spread Post-infection chloroquine treatment reduces SARS-CoV infection and spread Vero E6 cells were seeded and infected as described for Fig except ... (10 and 50 µM) that caused large reductions in SARS-CoV replication and spread, we conclude that the antiviral effect is probably not due to alteration of virus glycoprotein biosynthesis and...
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báo cáo hóa học:" Chloroquine is a potent inhibitor of SARS coronavirus infection and spread" docx
Ngày tải lên :
20/06/2014, 04:20
... PR and TK provided critical reagents and revised the manuscript critically NS and SN along with MV and EB participated in the planning of the experiments, review and interpretation of data and ... chloroquine treatment reduces SARS-CoV infection and spread Post-infection chloroquine treatment reduces SARS-CoV infection and spread Vero E6 cells were seeded and infected as described for Fig except ... (10 and 50 µM) that caused large reductions in SARS-CoV replication and spread, we conclude that the antiviral effect is probably not due to alteration of virus glycoprotein biosynthesis and...
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