Local Outcomes of a National Pilot to Enhance Ambulatory Precepting

Recruiting and retaining effective ambulatory preceptors in Family Medicine is a national priority (1), and the American Board of Family Medicine (ABFM) and the Society of Teachers of Family Medicine (STFM) have developed a collaborative program to enhance Family Medicine Precepting (2). As one of the first cohort of pilot sites participating in the Preceptor Improvement Project (PIP), VCU\u27s Department of Family Medicine and Population Health developed a faculty development program to enhance clinical teaching at the Hayes E. Willis Health Center, one of the Department\u27s key teaching locations. The PIP content was based on the learning needs identified by faculty at HEWHC, and consisted of four, 90-minute sessions which focused on time-efficient precepting, feedback, and working with challenging learners. Overall, these sessions were deemed by the participants to be effective, and precpetor self-assessment of their abilities improved following the sessions. This collaboration between the ABFM and the STFM allowed the participating physicians to satisfy their ABFM Maintenance of Certification (MoC) quality improvement requirement. The Department\u27s experience with this effective approach to faculty development opens the opportunity to expand participation in the PIP to community faculty members, and to further enhance the teaching these preceptors provide as part of the Family Medicine clerkship. This PIP may also be a model for other departments seeking to enhance teaching effectiveness, both in the inpatient and the ambulotory setting

Progger: an efficient, tamper-evident kernel-space logger for cloud data provenance tracking

Cloud data provenance, or "what has happened to my data in the cloud", is a critical data security component which addresses pressing data accountability and data governance issues in cloud computing systems. In this paper, we present Progger (Provenance Logger), a kernel-space logger which potentially empowers all cloud stakeholders to trace their data. Logging from the kernel space empowers security analysts to collect provenance from the lowest possible atomic data actions, and enables several higher-level tools to be built for effective end-to-end tracking of data provenance. Within the last few years, there has been an increasing number of proposed kernel space provenance tools but they faced several critical data security and integrity problems. Some of these prior tools' limitations include (1) the inability to provide log tamper-evidence and prevention of fake/manual entries, (2) accurate and granular timestamp synchronisation across several machines, (3) log space requirements and growth, and (4) the efficient logging of root usage of the system. Progger has resolved all these critical issues, and as such, provides high assurance of data security and data activity audit. With this in mind, the paper will discuss these elements of high-assurance cloud data provenance, describe the design of Progger and its efficiency, and present compelling results which paves the way for Progger being a foundation tool used for data activity tracking across all cloud systems

Who Knew? Admissibility of Subsequent Remedial Measures when Defendants are Without Knowledge of the Injuries

Federal Rule of Evidence 407 prohibits the introduction of subsequent remedial measures for the purposes of demonstrating negligence, culpable conduct, or product defect. But the rule breaks down, in application and purpose, when a defendant undertakes the new safety measure after the plaintiff\u27s injury, but before the defendant had knowledge of the loss. Such a situation is not uncommon. Would-be defendants frequently improve their products and product safety for a variety of reasons. Toxic exposure cases, where exposure often predates diagnosis of the injury by a decade or more, represent a prime example of cases where defendants are likely to have made significant product or warning improvements which, if taken before the plaintiff\u27s exposure, may have prevented the injury. Should evidence of these improvements be admissible? The literal text of Rule 407 suggests not. Yet allowing such measures into evidence may not have the same chilling effect as when the measure was taken in response to the plaintiff\u27s injury. In such circumstances, it can be argued the defendant never feared the measure would be used against it. Since the policies behind Rule 407 may not support the exclusion of such evidence, should it still be applied? This article explores Rule 407, its policy underpinnings, courts\u27 differing interpretations of the rule, and how it should be applied to defendants who take subsequent remedial measures without knowledge of a plaintiff\u27s injury. Finally, we suggest an interpretation of and amendment to Rule 407 that clarifies the rule and furthers its policy bases

Hydraulophone design considerations : absement, displacement, and velocity-sensitive music keyboard in which each key is a water jet

We present a musical keyboard that is not only velocity-sensitive, but in fact responds to absement (presement), displacement (placement), velocity, acceleration, jerk, jounce, etc. (i.e. to all the derivatives, as well as the integral, of displacement). Moreover, unlike a piano keyboard in which the keys reach a point of maximal displacement, our keys are essentially infinite in length, and thus never reach an end to their key travel. Our infinite length keys are achieved by using water jet streams that continue to flow past the fingers of a person playing the instrument. The instrument takes the form of a pipe with a row of holes, in which water flows out of each hole, while a user is invited to play the instrument by interfering with the flow of water coming out of the holes. The instrument resembles a large flute, but, unlike a flute, there is no complicated fingering pattern. Instead, each hole (each water jet) corresponds to one note (as with a piano or pipe organ). Therefore, unlike a flute, chords can be played by blocking more than one water jet hole at the same time. Because each note corresponds to only one hole, different fingers of the musician can be inserted into, onto, around, or near several of the instrument’s many water jet holes, in a variety of different ways, resulting in an ability to independently control the way in which each note in a chord sounds. Thus the hydraulophone combines the intricate embouchure control of woodwind instruments with the polyphony of keyboard instruments. Various forms of our instrument include totally acoustic, totally electronic, as well as hybrid instruments that are acoustic but also include an interface to a multimedia computer to produce a mixture of sounds that are produced by the acoustic properties of water screeching through orific plates, as well as synthesized sounds

DTKI: a new formalized PKI with no trusted parties

The security of public key validation protocols for web-based applications has recently attracted attention because of weaknesses in the certificate authority model, and consequent attacks. Recent proposals using public logs have succeeded in making certificate management more transparent and verifiable. However, those proposals involve a fixed set of authorities. This means an oligopoly is created. Another problem with current log-based system is their heavy reliance on trusted parties that monitor the logs. We propose a distributed transparent key infrastructure (DTKI), which greatly reduces the oligopoly of service providers and allows verification of the behaviour of trusted parties. In addition, this paper formalises the public log data structure and provides a formal analysis of the security that DTKI guarantees.Comment: 19 page

COMPTEL solar flare measurements

We review some of the highlights of the COMPTEL measurements of solar flares. These include images of the Sun in γ rays and neutrons. One of the important features of the COMPTEL instrument is its capability to measure weak fluxes of γ rays and neutrons in the extended phase of flares. These data complement the spectra taken with the COMPTEL burst spectrometer and the telescope during the impulsive phase of flares. We focus our attention on some of these general capabilities of the instrument and the latest results of two long‐duration γ‐ray flares, i.e., 11 and 15 June 199

A Framework for Analyzing Nonprofit Governance and Accountability Policies and Strategies

This paper presents a framework for analyzing the sprawling topic of nonprofit governance and accountability. It distinguishes various accountability-generating mechanisms and actors, including the unit-level governing board; government policies aimed at shaping the behavior of governing boards; and a broader, natural demand for accountability, generated by an organizations many stakeholders. The aims of these accountability mechanisms and actors also vary, and include the prevention of theft and fraud; the efficient use of resources; the choice of socially valuable goals; and the effective performance of an organization in service of those goals.This publication is Hauser Center Working Paper No. 33.3. Hauser Working Paper Series Nos. 33.1-33.9 were prepared as background papers for the Nonprofit Governance and Accountability Symposium October 3-4, 2006

networksis: A Package to Simulate Bipartite Graphs with Fixed Marginals Through Sequential Importance Sampling

The ability to simulate graphs with given properties is important for the analysis of social networks. Sequential importance sampling has been shown to be particularly effective in estimating the number of graphs adhering to fixed marginals and in estimating the null distribution of graph statistics. This paper describes the networksis package for R and how its simulate and simulate_sis functions can be used to address both of these tasks as well as generate initial graphs for Markov chain Monte Carlo simulations