536 research outputs found
Constrained Signaling in Auction Design
We consider the problem of an auctioneer who faces the task of selling a good
(drawn from a known distribution) to a set of buyers, when the auctioneer does
not have the capacity to describe to the buyers the exact identity of the good
that he is selling. Instead, he must come up with a constrained signalling
scheme: a (non injective) mapping from goods to signals, that satisfies the
constraints of his setting. For example, the auctioneer may be able to
communicate only a bounded length message for each good, or he might be legally
constrained in how he can advertise the item being sold. Each candidate
signaling scheme induces an incomplete-information game among the buyers, and
the goal of the auctioneer is to choose the signaling scheme and accompanying
auction format that optimizes welfare. In this paper, we use techniques from
submodular function maximization and no-regret learning to give algorithms for
computing constrained signaling schemes for a variety of constrained signaling
problems
Miteigentum an Grundstücken und einfache Gesellschaft
Although there is agreement that a pro rata entitlement is permissible in the simple partnership, the necessary interaction of Art. 646 ff. ZGB on co-ownership law and Art. 530 ff. OR on the law of the simple partnership is dealt with only rudimentarily. This is the point at which the work picks up, in that the two institutes of co-ownership and simple partnership are examined individually as well as in relation to their coordination possibilities in the case of real estate. The fundamental discussion of the legal institutions of co-ownership and simple partnership yields further insights of practical relevance. Thus, the delimitation difficulties between co-ownership and joint ownership as a result of simple partnership are also presented, general indications for the structuring of an agreed co-ownership arrangement are provided, and the concerns raised in the doctrine regarding pro rata entitlement in simple partnership are discussed
Epidural Analgesia Decreases Narcotic Requirements in Low Level Spina Bifida Patients Undergoing Urologic Laparotomy for Neurogenic Bladder and Bowel
Purpose
Concern of anatomical anomalies and worsening neurologic symptoms has prevented widespread use of epidural catheters in patients with low level spina bifida (LLSB). We hypothesize that thoracic epidural placement in the T9-T10 interspace is safe and decreases narcotic requirements in LLSB patients following major open lower urinary tract reconstruction (LUTR).
Materials and Methods
We reviewed consecutive LLSB patients who had LUTR and epidurals for post-operative pain control. Controls were LLSB patients who received single shot transversus abdominis plane (TAP) blocks with similar procedures. Complications from epidural placement, including changes in motor and sensory status were recorded. Opioid consumption was calculated utilizing equivalent IV morphine doses. Mean and maximum pain scores on post-operative day (POD) 0-3 were calculated.
Results
10 LLSB patients who had lower urinary tract reconstruction and epidurals were matched to 10 LLSB patients who had lower urinary tract reconstruction and transverse abdominis plane blocks. Groups were demographically similar. All had full abdominal sensation and functional levels at or below L3. No epidural complications or changes in neurological status were noted. The epidural group had decreased opioid consumption on POD 0-3 (0.75 mg/kg vs. 1.29 mg/kg, p=0.04). Pain scores were similar or improved in the epidural group.
Conclusions
Thoracic epidural analgesia appears to be a safe and effective opioid sparing option to assist with post-operative pain management following lower urinary tract reconstruction in LLSB patients
Towards certification of new statistics of public interest in France
This paper presents the analysis and proposal to qualify new statistics of public interest in France. It describes the present situation regarding the qualification of statistics produced independent of the National Statistical System and the challenges related to their emergence, as these statistics may complement and sometimes challenge official statistics. The authors propose a three-tier mechanism; the first level is limited to self-documentation of a statistic based on a predefined template, the second level is the approval of such documentation, and the third level involves the approval of the documentation including the methodology and quality of output
Medienperformanz als didaktisches Prinzip medienpädagogischer Praxis
Die medienpädagogische Diskussion wird stark vom Konzept der Medienkompetenz dominiert. Der Ansatz der Medienperformanz als Manifestation der kognitiven Dispositionen im konkreten auf Medien bezogenen Handeln ist demgegenüber unterbelichtet. In diesem Aufsatz wird diskutiert, wie die beiden Konzepte in medienpädagogischer Praxis aufeinander bezogen werden können. Dabei wird Medienperformanz als didaktische Grundhaltung konzipiert, welche mit den Prinzipien einer handlungs- bzw. alltagsorientierten Medienpädagogik korrespondiert. Am Beispiel des medienpädagogischen Projekts "Schaut her! Ich zeig's euch digital!" wird das didaktische Potenzial des Medienperformanz-Ansatzes dargelegt
A Study of Layered Learning in Oncology
Objective. To explore use of pharmacy learners as a means to expand pharmacy services in a layered learning practice model (LLPM), to examine whether an LLPM environment precludes achievement of knowledge-based learning objectives, and to explore learner perception of the experience
Exploring the Requisite Skills and Competencies of Pharmacists Needed for Success in an Evolving Health Care Environment
Objective. To identify and describe the core competencies and skills considered essential for success of pharmacists in today’s rapidly evolving health care environment
The Carnegie Supernova Project: Analysis of the First Sample of Low-Redshift Type-Ia Supernovae
We present the analysis of the first set of low-redshift Type Ia supernovae
(SNe Ia) by the Carnegie Supernova Project. Well-sampled, high-precision
optical (ugriBV) and near-infrared (NIR; YJHKs) light curves obtained in a
well-understood photometric system are used to provide light-curve parameters,
and ugriBVYJH template light curves. The intrinsic colors at maximum light are
calibrated to compute optical--NIR color excesses for the full sample, thus
allowing the properties of the reddening law in the host galaxies to be
studied. A low value of Rv~1.7, is derived when using the entire sample of SNe.
However, when the two highly reddened SNe in the sample are excluded, a value
Galactic standard of Rv~3.2 is obtained. The colors of these two events are
well matched by a reddening model due to circumstellar dust. The peak
luminosities are calibrated using a two-parameter linear fit to the decline
rates and the colors, or alternatively, the color excesses. In both cases,
dispersions in absolute magnitude of 0.12--0.16 mag are obtained, depending on
the filter-color combination. In contrast to the results obtained from color
excesses, these fits give Rv~1--2, even when the two highly reddened SNe are
excluded. This discrepancy suggests that, beyond the "normal" interstellar
reddening produced in the host galaxies, there is an intrinsic dispersion in
the colors of SNe Ia which is correlated with luminosity but independent of the
decline rate. Finally, a Hubble diagram is produced by combining the results of
the fits for each filter. The resulting scatter of 0.12 mag appears to be
limited by peculiar velocities as evidenced by the strong correlation between
the distance-modulus residuals among the different filters. The implication is
that the actual precision of SN Ia distances is 3--4%.Comment: 76 pages, 20 figures, accepted for publication in A
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