what are the threats to internal and external validity

Ngày tải lên: 14/10/2014, 01:03

... problem). The attacker might then seem to be trying to help the users troubleshoot the problem by asking them their password so they can attempt to log in as the user and see whether they experience ... administrator attempting to help a user in need, and then trying to get the information they need from their target. For example, someone might contact users asking whether they are having ... and allows the designer of the spyware to track everything from what websites an individual frequents to the purchases (and potentially the credit cards used) that the user makes. Spyware is much...

Ngày tải lên: 21/01/2014, 02:20

... the drug. The US government also ques- tioned the validity of the license, and pressed Thailand to rescind the decision and negotiate with Merck. Unwaver- ing, Thailand took a step further in January ... health-care products; (b) the development of drugs from pre-clinical and clinical research, and the reg- ulatory process; (c) the delivery of new and existing prod- ucts to LMICs; (d) the fostering ... for implementing the Doha Declaration and Paragraph 6 decision, and the threats posed by bilateral and regional trade agreements, need to be considered alongside them. The limitations of the two agreements...

Ngày tải lên: 11/08/2014, 18:20

Ngày tải lên: 14/08/2014, 19:22

Ngày tải lên: 23/03/2015, 10:58

Ngày tải lên: 05/09/2013, 09:08

... people. And those 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 ... 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 also quite dangerous for ... 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 unnecessary things beckause they seeing to have...

Ngày tải lên: 23/10/2013, 02:15

Ngày tải lên: 25/10/2013, 15:20

Ngày tải lên: 25/10/2013, 15:20

... regulatory reforms) and poses the question of the relevance of the investor base in broader terms. On the one hand, the consequence of such an approach is that the empirical results are likely to ... flipside to the increasing share held by non-residents in the pre-crisis period, domestic investors held a lower share of government securities. With regard to the total outstanding, the share of ... change the steepness of the yield curve. In empirical applications, the assumptions underlying this theory are often found to be violated. 18 To the degree that changes in the investor base are...

Ngày tải lên: 15/03/2014, 07:20

... order to distinguish the various external forces that influence the motion of the system in addition to the internal ones. These external forces could be, e.g. gravity, buoyancy, Coriolis and centrifugal ... integral term of the fluxes and the surface sources, assuming that these fluxes and surface sources are continuous. Gauss’ theorem states that the surface integral of the flux is equal to the volume integral ... known, from Newton’s law, that the sources for the variation of momentum in a physical system are the forces acting on it. These forces consist of the external volume forces  f e and the internal forces  f i ,...

Ngày tải lên: 01/04/2014, 10:56

... objects . What are the good and 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 ... customers watch television many times a day so they can easily recognize brand name of the suppliers.  The customers are very impressed by the images that the suppliers advertised in the ... utilities, cost and other requirements. It helps consumers know what is the best option for them. INFORMATIVE TELEVISION  STRENGTHS  They can supply a wide range of products to their customers...

Ngày tải lên: 02/06/2014, 15:10

... lead to the action? Or is it the other way ’round? Subjects were therefore asked to note the position of a clock’s second hand when they first felt the initial intention to move their hand. Libet’s ... unpleasant thing to bring people into the basic laws of physics.” In order to account for why space and time are relative to the observer, Einstein assigned tortuous mathematical properties to the changing ... for the S photons, the fringes return as before. But how can this be? Photons taking the S path already finished their journeys. They either went through one or the other slit or both. They either collapsed...

Ngày tải lên: 11/06/2014, 12:07

... The crossing of different cultures can lead to misunderstandings and may cause conflicts. Therefore they are divided into cultural groups by their differences. And we should ... that when we go to distant places, we can understand the others and can live with them more friendlily and peacefully. confused signals become more serious when they involve what we regard ... seems insincere, and therefore irritating. The culture concept has the advantage of enabling us to look at the whole society, making clear the fact that one cannot understand group behavior...

Ngày tải lên: 22/07/2014, 04:20

... characteristics in culture and fine arts in the process of building a new culture. From such analyses, it can be stated that the national characteristics in culture and fine arts are the crystallization ... crystallization of value systems, the measuring scale of the value of nation who has been formed for a long time, the unique creation, storage, appreciation and development of culture and fine arts of each ... ABSTRACT The national characteristics in culture and fine arts are the essential components of a culture imbued with national identities. This article explores various approaches to national...

Ngày tải lên: 22/07/2014, 13:21

... school report Sellotape shares spare time suspenders (used to hold up ladies stockings) tights tin toffee apple toilet torch trousers vest wellies / wellingtons windscreen zip student ... roads and motorways. Someone I know took over 4 hours to complete a 25 minute drive, because he didn't know what his sat nav system meant when it said "Take the ramp". Another ... frying-pan mackintosh shares pupil braces jumper drawing-pin toilet (but the loo not the room) dustbin lorry boot vest flannel windscreen postcode zip Notes: 1 - When used to talk...

Ngày tải lên: 27/07/2014, 09:21

... major innovation at the techno- logical, social, and cultural levels[1]. This technology has the potential to increase access to, and quality of, health care services and to lower health system ... was perceived as a powerful tool to improve healthcare serv- ices for populations living in remote areas. According to respondents, telehealth has the potential to facilitate access to, and availability ... data. MPG proceeded to the literature review and wrote a first draft of the manuscript. JPF and RL were co-Principal Investigators on the project and gave feedback on research instruments and data analyses....

Ngày tải lên: 11/08/2014, 05:22

Ngày tải lên: 13/08/2014, 15:21

Ngày tải lên: 14/10/2014, 01:07

Ngày tải lên: 22/12/2014, 16:41