... about themselves and their society; h o w they voted and the nature of their politics; h o w businesses operated and treated their workers; and h o w the American economy was con nected with the ... and President Nixon's resignation; the sexual revolution; the invention of the computer chip; R o n a l d Reagan's election in 1980; the end of the Cold War; the creation of the Inter net; the ... in the endless abundance of resources, convictions so deeply rooted in the * The Bureau of the Budget is now the Office of Management and Budget (OMB) 16 The Lost History American character and...
Ngày tải lên: 01/11/2014, 21:43
... the U.S.) Such was the weight of the NSFNET program’s COMMUNICATIONS OF THE ACM February 1997/Vol 40, No 105 ecumenism and funding ($200 million, 1986–1995) and the quality of the protocols themselves ... specifications of the protocols The beginnings of the ARPANET and the Internet in the university research community promoted the academic tradition of open publication of ideas and results However, the normal ... of the Internet program at DARPA, he and Clark recognized that the continuing growth of the Internet community demanded a restructuring of the coordination mechanisms The ICCB was disbanded and...
Ngày tải lên: 29/03/2014, 20:20
The Past, Present, and Future of JavaScript doc
... Table of Contents The Past, Present, and Future of JavaScript The past Standardization Historic JavaScript milestones The present The future Evolving the ... in 2005 With the introduction of the iPhone in 2007, it became the foundation of the mobile web WebKit is now the main engine for Android and the only engine for iOS, and dominates the mobile market ... trademarks of O’Reilly Media, Inc The Past, Present, and Future of JavaScript and related trade dress are trademarks of O’Reilly Media, Inc Many of the designations used by manufacturers and sellers...
Ngày tải lên: 24/03/2014, 04:21
under a green sky - global warming, the mass extinctions of the past, and what they can tell us about our future
... emptily down on the flowers and science pilgrims alike One of them was crucial in founding the science of stratigraphic geology and extinction In one of the halls near the edge of the park there is ... loudest dissent and opposition came To the others in the fossil fields, however, the evidence that there had been these die-offs in the past seemed overwhelming But what were the causes of these events? ... (volume) of them seemed to closely correspond in age to the times of each of the great mass extinctions of the last 500 million years The largest flood basalt of all, named the Siberian Traps (and they...
Ngày tải lên: 08/04/2014, 01:22
The past, present and future of heterogeneous catalysis
... the catalytic activity and the oxidation state of the catalyst, the nature of the support, the metal-support interaction, and the morphology of the catalyst particles [389,403–417] However, the ... (2012) 2–27 Fig Scheme of the effect of the adsorption rate of reactants on the reactivity, depending on the polarity of the reactants versus that of the zeolite [63,64] of the catalyst, as already ... processes Finally, there is a need for theoretical studies in this new field, assisting the design of MOFs and providing insight into the interaction of the substrates and MOFs Clarifying the reaction...
Ngày tải lên: 09/10/2015, 00:06
CLARIFYING BUSINESS MODELS: ORIGINS, PRESENT, AND FUTURE OF THE CONCEPT pot
... Present, and Future of the Concept by A Ostenwalder, Y Pigneur, and C.L Tucci 1990s This surge coincidences with the advent of the Internet in the business world and the steep rise of the NASDAQ ... applications and the right IT/IS structures Mutual Understanding of IT/IS and Business The social dimension of linkage between business and IS is defined as the level of mutual understanding of and commitment ... business logic of a specific firm It is a description of the value a company offers to one or several segments of customers and of the architecture of the firm and its network of partners for...
Ngày tải lên: 15/03/2014, 21:20
The Value and Impacts of Alternative Fuel Distribution Concepts- Assessing the Army’s Future Needs for Temporary Fuel Pipelines pptx
... Assault Hoseline, and the Tactical Water Delivery System The chapter then moves on to an analysis of the ability of these various systems to meet the set of future requirements Inland Petroleum Distribution ... operation for the duration of the mission, and the lines required high maintenance and the constant supervision of an engineer unit that was in support of the fuel mission.9 In summary, the HRS proved ... of the NEO and HA scenarios The effect would be to further reduce the potential size of a future tactical pipeline requirement Taking this thought one step further, and considering the success the...
Ngày tải lên: 23/03/2014, 02:20
scientific american special edition - 2002 vol 12 no2 - the once and future cosmos
... Einstein’s general theory of relativity knits together these fundamental properties of the universe and describes how they affect the motion of matter and the propagation of light, thereby offering predictions ... prevalence of dark matter and the importance of hot intergalactic gas In 2000 he won the U.S National Medal of Science Steinhardt was one of the originators of the theory of inflation and the concept of ... astronomical observations— of the age of the universe, the den- www.sciam.com THE ONCE AND FUTURE COSMOS COPYRIGHT 2002 SCIENTIFIC AMERICAN, INC 33 sity of matter and the nature of cosmic structures—...
Ngày tải lên: 12/05/2014, 16:26
present and future of the cosmic microwave background proceedings of the workshop held in santander spain 28 june-1 july 1993
... beyond the null in the thermal Sunyaev-Zel'dovich effect at 220 GHz, and achieve the spectral separation of the thermal and kinematic effects The measurement of the radial peculiar velocity of a ... e a m of the OVRO telescope and the 0.5-arcmin resolution limit of the Ryle data Even with the small (13-m diameter) antennas and the most compact configuration of the Ryle telescope, the effect ... bands A suitable choice of differencing between elements of the array reproduces many of the sky-noise subtraction properties of radiometric observing, and the multiband capability holds out the...
Ngày tải lên: 03/07/2014, 21:10
Báo cáo y học: "Closure of the NCBI SRA and implications for the long-term future of genomics data storage" doc
... primary object of study, exchange, and archiving PF: As with any archiving project, one needs to con sider the cost of storage relative to the potential future reuse In the course of the 1000 Genomes ... being deleted RK: If there is a good chance that the data are going to be used by others, then yes, there is a good case for storing them Just storing the raw data for the sake of it, however, is ... MG: Due to the huge size of the files, uploading and downloading data from a central repository is not easy The model of a central archive may need to be revisited and we may see in the future an...
Ngày tải lên: 09/08/2014, 22:23
State of the art and future challenges of zeolites as catalysts
... the confined space of the pores will be characterized by the geometry of the environment of the active site (ED and ER ) and by the chemical composition of the environment (EP and EN ) Derouane ... shortening of the fluorescent lifetimes, the observation of vibronic couplings, the appearance of room-temperature phosphorescence, and the shift of the Raman peaks to lower vibration energy due to the ... take advantage of the properties of zeolites in base catalysis In the case of zeolites the basic sites are of Lewis type and correspond to framework oxygens, and the basicity of a given oxygen...
Ngày tải lên: 08/10/2015, 23:55
Paleoclimate what can the past tell us about the present and future
... Image courtesy of NOAA Recent observations: Land surface temperature Climate Change 2007: The Physical Science Basis Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental ... see the photo on http://www.raleighite.com/2013/hs-76 -the- tour-guide 13 Climate and CO2 over the last 400 Myr Climate Change 2007: The Physical Science Basis Working Group I Contribution to the ... Temperature During the PaleoceneEocene Thermal Maximum Science, 302(5650), 1551–1554 doi:10.1126/science.1090110 Zachos, J C (2005) Rapid Acidification of the Ocean During the Paleocene-Eocene Thermal Maximum...
Ngày tải lên: 04/12/2015, 00:37
The Design and Implementation of a Log-Structured File System
... relative importance of the various kinds of data written to disk, both in terms of how much of the live blocks they occupy on disk and in terms of how much of the data written to the log they represent ... delay the cleaning a while and let more of the blocks die in the current segment The value of a segment’s free space is based on the stability of the data in the segment Unfortunately, the stability ... writes, then reads the file back sequentially, then writes 100 Mbytes randomly to the existing file, then reads 100 Mbytes randomly from the file, and finally reads the file sequentially again The bandwidth...
Ngày tải lên: 12/09/2012, 15:05
The Breadth and Depth of DSP
... very specialized audience State -of -the- art researchers need this kind of detailed mathematics to understand the theoretical implications of the work A basic premise of this book is that most practical ... word in the incoming audio signal is isolated and then analyzed to identify the type of excitation and resonate frequencies These parameters are then compared with previous examples of spoken ... away at the speed of light Aircraft in the path of this wave will reflect a small portion of the energy back toward a receiving antenna, situated near the transmission site The distance to the object...
Ngày tải lên: 13/09/2012, 09:49
Cambridge.University.Press.Fearing.Others.The.Nature.and.Treatment.of.Social.Phobia.Mar.2007.pdf
... clinical and health psychology and psychiatry AR I E L ST R AV Y N S K I is Professor of Clinical Psychology in the Department of Psychology at the University of Montreal Fearing Others The Nature and ... patterns Whether these are activated depends on the social demands placed on the individual by the way of life of their community These determine the situational contexts evocative of the social ... see the rise of psychology and the application of its psychometric methods to the study of social phobia The first scale for the measurement of social anxiety À the psychological construct at the...
Ngày tải lên: 21/09/2012, 10:54
Báo cáo y học: "Management of chest pain: exploring the views and experiences of chiropractors and medical practitioners in a focus group interview"
... referral) may depend on the nature of the condition, whether the referral is for reasons of diagnosis and/ or treatment, the preference of the provider, and the relationship between the providers Medical ... situation, that the point of referral may depend on the familiarity or relationship between the providers, and that the nature of the referral (e.g., amount and type of information accompanying the referral) ... group composed of both chiropractic and medical professionals The goals of the focus group were to explore the attitudes and experiences of medical and chiropractic clinicians regarding their patients...
Ngày tải lên: 25/10/2012, 10:06
Evaluating the Reliability and Validity of an English Achievement Test for Third-year Non- major students at the University of Technology, Ho Chi Minh National University and some suggestions for chan
... criteria of good tests and theoretical ideas on test reliability and validity as well as achievement tests Chapter 3- The study is the main part of the thesis showing the context of the study and the ... assessment of the test reliability and validity These conclusions are as follows: The test with chosen items is compatible with the aims of the courses and the objectives of the syllabus and the test ... kind of software in a server Before the examinations, the person who is in charge of preparing the tests will use the software to mix the test items in the item bank and print out the tests All the...
Ngày tải lên: 07/11/2012, 15:05
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