Reliability of such instruments needs to be proved

Quantum Measurements Cannot be Proved to be Random

The postulates of quantum mechanics say that when a measurement is made on a quantum state the outcome of the measurement is random [1]. In classical physics, if the state of a closed system is known, then the state of that system is completely predictable. As far as we know, randomness only exists in quantum mechanics [2]. Everett proposed a purely unitary quantum theory [3] (without probabili...

The Case Against Exchange Transfusion Has Yet to Be Proved

Tan et al are to be congratulated for achieving the difficult task of synthesizing the many disparate pieces of data on the subject of exchange transfusion (ET) [1]. However, we believe their conclusion that “adjunct ET cannot be recommended” should have been qualified with an acknowledgment that they have shown a “lack of evidence for benefit” rather than “evidence for lack of benefit.” The re...

Mercosul: Has Political Will Proved to Be Enough?

Planning to Fail -Reliability Needs to be Considered a Priori in Multirobot Task Allocation

The reliability of individual team members has a substantial and complex influence on the success of multirobot missions. When one robot fails, other robots must be retasked to complete the tasks that were assigned to the failed robot. This in turn increases the likelihood of these other robots failing, since they have more work to do. Existing multirobot task allocation systems consider robot ...

Validity and reliability testing of two instruments to measure breast cancer patients' concerns and information needs relating to radiation therapy

BACKGROUND It is difficult to determine the most effective approach to patient education or tailor education interventions for patients in radiotherapy without tools that assess patients' specific radiation therapy information needs and concerns. Therefore, the aim of this study was to develop psychometrically sound tools to adequately determine the concerns and information needs of cancer pati...