A computer simulation of digital recording Final development progress report, 29 Dec. 1966 - 29 Dec. 1967

Fourier series digital computer simulation of tape recording process - signal detection in prescence of white Gaussian nois

Addendum no. 1 to final development report

Pseudo-linearity concept impact on linear filters designed to ease pulse crowding effects at high bit densitie

Studies on the Metacyclic Forms of Leishmania major and Other Species

Populations of stationary-phase promastigotes and purified metacyclic promastigotes of Leishmania major, and stationary-phase populations of L. mexicana mexicana (which contain putative metacyclics) were compared with their respective mid-log phase populations and isolated amastigotes using a variety of techniques

Self-interest often drives US states’ adoption of evidence based policy measures

In the US, lawmaking at the state level is often heavily linked to the ideology of the party which controls the legislature. Evidenced Based Policy, on the other hand, provides a means for lawmakers to develop measures based on research and data. In new research, Luke Yingling and Daniel J. Mallinson look at what drives the adoption of Evidence Based Policy across the states, finding that it is often motivated by reasons of practicality and electoral self-interest rather than a desire to improve policy outcomes

Why it will be difficult for Jeff Sessions to put the genie back into the bottle on marijuana policy

Last week, the US Attorney General, Jeff Sessions, announced that he would be revoking Obama-era Department of Justice guidance which left the enforcement of marijuana policy to the states by giving prosecutors more discretion to pursue marijuana cases. A. Lee Hannah and Daniel J. Mallinson write that Sessions' policy about-face draws opposition from many of those in his own party, state US attorneys, interest groups, and state legislatures. Given that the federal government is dependent on state and local law enforcement for implementing drug prohibition, this opposition could well push Congress to change federal marijuana law

Uncooperative federal government has led to innovation on marijuana policy in more liberal, less religious states.

In the past two decades, 29 states and Washington DC have liberalized their laws on the use of medical marijuana - in defiance of federal regulations. A. Lee Hannah and Daniel J. Mallinson look at why some states have become 'defiant innovators' in this area. They find that if a state is more liberal and less religious, if the state ..

How the US states have learned from each other to create more comprehensive medical cannabis policies.

Medical cannabis was first legalized in California in 1996 – since then, 32 more states have done the same, and 11 have made the drug legal for recreational use. A. Lee Hannah and Daniel J. Mallinson take a close look at how the US states have learned from each other on how to regulate cannabis in the face of a continuing [...

Why legal cannabis may be more widespread in the US after the election.

The process of implementing comprehensive cannabis legislation varies between states and is often met with bureaucratic challenges. With many states putting medical and recreational cannabis on the ballot this election, Lee Hannah, Gideon Cunningham and Daniel Mallinson look at the key differences in these states’ approaches to legalisation. The increasing momentum on legal cannabis, they write, is likely to put further pressure on Congress to pass national cannabis policy reform

How Pennsylvania has taken steps to address the cannabis industry’s equity problem

While cannabis decriminalization and legalization has grown across the states, the profits from cannabis-related businesses have tended to flow mainly to white men, raising issues of equity. In new research, Lee Hannah, Daniel Mallinson, and Lauren Azevedo evaluate measures introduced in Pennsylvania to improve equity in who benefits from cannabis sales

Outnumb3r3d : intrinsically motivating mathematics for the PlayStation 4

This paper and accompanying poster describes the design of an intrinsically integrated educational game to improve children’s competencies in mental mathematics. A number of researchers have suggested that educational games are more effective when they are closely integrated with their learning content. Specifically work by the lead author has showed that a closer integration between an educational game's core-mechanics and its learning content can be both more appealing (in terms of time spent on-task) and more educationally effective (in terms of learning outcomes) than a less integrated "edutainment" approach. However, cursory approaches to integrating learning content remain common in contemporary educational software, and the literature lacks an exemplar of what can be achieved using an integrated approach. The Outnumb3r3d game was conceived to provide a commercial and theoretical exemplar of intrinsic integration for the Nintendo Wii, but was never completed. This project is now porting the original Wii prototype onto the PlayStation 4 in order to revive Outnumb3r3d as a research project. This paper details the design of Outnumb3r3d with reference to the key theoretical constructs that underlie its pedagogical design. In doing so it provides an example of a game design created to integrate mathematical learning content seamlessly into the game's core mechanics, ensuring that the mathematics is what makes the game intrinsically motivating to play rather than trying to hide or "sugar coat" its learning content. At the time of writing the game’s implementation is still a “work in progress”, but is expected to be the subject of future empirical evaluations into its effectiveness as a teaching tool