This research paper explains the potential impact when CAPTCHAs become easy for attackers to solve. A literature review has been done on different types of as well methods present break CAPTCHAs. But data regarding effect that have had they attacked and broken is scarce. are deployed mainly secure sites or apps but there particular disadvantages which make them not only less beneficial owners a...

Small fragments circulating in the blood were formally identified by the end of the nineteenth century, and it was suggested that they assisted coagulation via interactions with vessel endothelia. Wright, at the beginning of the twentieth century, identified their bone-marrow origin. For long, platelets have been considered sticky assistants of hemostasis and pollutants of blood or tissue sampl...

Accurate chromosome segregation requires the interaction of chromosomes with the microtubules from the mitotic spindle. This interaction is mediated by the macro-molecular kinetochore complex, which assembles only at the centromeric region of each chromosome. However, how this site is specified and how assembly of the kinetochore structure is regulated in coordination with cell cycle progressio...

There is at present, far too little empirical research into the actual decision-making process of Institutional Review Boards (IRBs) and it is sobering to be reminded by Robert Klitzman’s article that while theoretical debates might rage and prove fertile ground for new theories and better ways of approaching research ethics; ethics committee members must try to make sense of these concepts and...

Abstract Acting on one’s moral principles is not always easy. Upholding beliefs may run counter to social environment or situational demands. It often cause people remain silent their convictions, while at the same time some show courage speak out. How do evaluate those who stand up, and how does it affect self-evaluations? In two experimental studies (Ns = 207 204), we investigated both types ...

∗This paper was presented as the Innis Lecture at the 2015 Canadian Economics Association Annual Meeting at York University, Toronto. Parts of this paper are based on joint work with Paul Beaudry and Benjamin Sand. I owe them both a huge debt for all that I have learned from them. I am grateful to Paul Beaudry, Kelly Foley, Andrew Green, Craig Riddell and Benjamin Sand for insightful comments o...