392 research outputs found
The Influence of Federal Laboratory R&D on Industrial Research
Over the past 60 years the United States has created the world's largest system of government laboratories. The impact of the laboratories on the private economy has been little studied though their research accounts for 14% of total U.S. R&D, more than the R&D of all colleges and universities combined. In this paper we study the influence of federal laboratory R&D on industrial research using a sample of industrial laboratories. In head-to-head comparisons with alternative measures, we find that Cooperative Research and Development Agreements or CRADAs, are the primary channel by which federal laboratories increase the patenting and R&D of industrial laboratories. With a CRADA industrial laboratories patent more, spend more on company-financed R&D and spend more of their own money on federal laboratories. Without a CRADA patenting stays about the same and only federally funded R&D increases, mostly because of direct subsidies by government. These results are consistent with the literature on endogenous R&D spillovers, which emphasizes that knowledge spills over when recipients work at making it spill over. CRADAs are legal agreements between federal laboratories and firms to work together on joint research. They are backed by real budgets and accompanied by cost sharing that could bind the parties together in joint research. Moreover, the CRADA instrument is the main form of such agreements. Thus, both in theory and in fact CRADAs may be more beneficial to firms than other public- private interactions, precisely because of the mutual effort that they require of firms and government laboratories.
The Influence of Federal Laboratory R&D on Industrial Research
This paper studies the influence of R&D in the federal laboratory system, the world's largest, on firm research. Our results are based on a sample of 220 industrial research laboratories that work with a variety of federal laboratories and agencies and are owned by 115 firms in the chemicals, machinery, electrical equipment, and motor vehicles industries. Using an indicator of their importance to R&D managers, we find that Cooperative Research and Development Agreements or CRADAs dominate other channels of technology transfer from federal laboratories to firms. With a CRADA industry laboratories patent more, spend more on company-financed R&D, and devote more resources to their federal counterparts. Without this influence patenting stays about the same, and only federally funded R&D increases, mostly because of government support. The Stevenson-Wydler Act and amendments during the 1980s introduced CRADAs, which legally bind federal laboratories and firms together in joint research. In theory the agreements could capitalize on complementarities between public and private research. Our results support this perspective and suggest that CRADAs may be more beneficial to firms than other interactions with federal laboratories, precisely because of the mutual effort that they demand from both parties.
Preparing Students For Class: A Clinical Trial Testing The Efficacy Between Multimedia Pre-lectures And Textbooks in an Economics Course
Motivating students to come prepared to class is often a futile exercise. The consequences are magnified as more instructors adopt the flipped classroom teaching model, in which students are expected to come to class with some knowledge of the material. This paper analyzed the implementation of a pedagogical tool that addresses this problem: multimedia pre-lectures. We tested the efficacy of pre-lectures on students with no prior exposure to college or AP-level economics using a controlled clinical experiment, focusing on introductory economics concepts. Students who had access to pre-lecture materials scored significantly higher on comprehension and retention than those with access only to textbooks
Industry-University Cooperative Research Centers
This paper takes a first look at the effect of Industry-University Cooperative Research Centers (IUCRCs) on industrial R&D laboratories. IUCRCs are small academic centers designed to foster technology transfer between universities and firms. Since IUCRCs depend on industry support we expect them to further the research of member companies. Our findings suggest that IUCRCs promote industry-university technology transfer. We find strong associations between laboratory membership in IUCRCs and the importance of faculty consultants, co-authorship with faculty and hiring of graduate students to the laboratories. IUCRC membership contributes small increments, not always statistically significant, of 2% in laboratory patenting and research expenditures. Both estimates are larger for National Science Foundation IUCRCs, consistent with their quality and their sorting to larger laboratories. These results survive a simultaneous equation analysis of the joint decision to patent and join IUCRCs. Nevertheless more work is needed to separate the effect of the IUCRCs from the matching mechanism that assigns IUCRCs to R&D laboratories.
Ultrasound imaging of the sciatic nerve division in the popliteal fossa: A volunteer study
Background and Objectives: A sciatic nerve block at the level of the popliteal fossa is frequently administered for post-operative analgesia for surgery below the knee. While ultrasound continues to gain popularity as the technique of choice for guiding needle positioning during peripheral nerve blocks, practitioners can begin to utilize ultrasound to look for patterns of anatomical significance. Recognizing anatomical variations among different demographic populations can help practitioners improve in performing nerve blocks. We aim to determine if predictable variability exists in sciatic nerve bifurcation location and depth at the level of the popliteal fossa.
Methods: After IRB approval, eligible subjects were screened for ASA I or II status and demographic data was collected. Fifty subjects were enrolled. The SonoSite MicroMaxx® with 38-mm broadband linear array, 13-6 MHz probe with color Doppler and image capturing capabilities was used for ultrasound measurements. With subject lying prone, the location of the sciatic nerve in relation to the popliteal crease and skin-to-nerve distance were assessed via ultrasound. Two independent investigators confirmed nerve location for measurements. Analyses were performed with SAS version 9.1 using Pearson Correlation Coefficients and regression analysis.
Results: Gender stratification revealed that, while males were both taller and heavier, skin-nerve measurements for depth were consistently deeper in females (p-value 0.02). Independent of the right or left leg, male gender and increased height decreases the skin-nerve distance, while increased weight increases the distance. There was no correlation between patient characteristics and crease-nerve distance. In some subjects, variability of crease-nerve distance even existed between their right and left leg.
Conclusion: We show that significant variability exists for actual sciatic nerve bifurcation location, or target injection site, with consistently deeper skin depth values for female patients when compared to male patients, accounting for height and weight. These findings suggest visualization techniques such as ultrasound may lead to better localization of ideal injection sites
Funding Universal Service: The Effect of Telecommunications Subsidy Programs on Competition and Retail Prices
There is general concern that producer subsidies distort competition. We
examine a telecommunications subsidy system that transfers money from
low cost regions to high cost regions of the U.S. Even though the system
is designed to be competitively neutral, we find evidence that the
system, combined with carrier of last resort policies, promotes cream
skimming by entrants in low cost areas and less entry in high cost
areas, where incumbents are more likely than entrants to receive
subsidies. We are unable to rule out the possibility that state
regulatory policies favor incumbents in states that are net
beneficiaries of the subsidy system
International clinical rotations during U.S. residency training: Creating an accreditation council for graduate medical education-approved rotation
Healthcare professionals increasingly report interest in global health and participation in international healthcare delivery. Growth opportunities exist for trainees to improve knowledge, skills and attitudes through international experiences. Professional development via international medicine may have lasting effects on patient care and practice patterns following training. In 2010, the first resident took part in an international, exchange elective between The George Washington University’s Department of Anesthesiology in Washington, DC and La Universidad de San Francisco’s Department of Anesthesiology in Quito, Ecuador. This resident elective rotation resulted from a strategic partnership, initiated in 2008, between two training institutions with an established track record of medical student educational exchange programs. The goal of any resident elective rotation should be to enhance an educational experience, to improve upon a perceived training deficiency, or to create a unique offering that takes advantage of local assets and connections. International electives, if properly conceived, can accomplish all three goals. This guide for program leadership addresses the rationale and challenges, from concept to Accreditation Council for Graduate Medical Education approval, of creating an international clinical rotation for residents
The crucial role of bilateral infraclavicular nerve blocks in the anesthetic management of a trauma patient
Bilateral brachial plexus blocks and regional anesthesia in trauma patients are rarely performed due to potential complications when using these techniques. We illustrate a case in which bilateral infraclavicular nerve blocks were placed as part of a multimodal approach to pain management in a trauma patient. We discuss potential hazards, important considerations, and rationale for attempting this procedure. Ultimately, performing bilateral brachial plexus nerve blocks in trauma patients is a viable option when choosing pain management techniques
Obliquity Constraints on an Extrasolar Planetary-Mass Companion
We place the first constraints on the obliquity of a planetary-mass companion outside of the solar system. Our target is the directly imaged system 2MASS J01225093–2439505 (2M0122), which consists of a 120 Myr 0.4 M⊙ star hosting a 12–27 M_J companion at 50 au. We constrain all three of the system's angular-momentum vectors: how the companion spin axis, the stellar spin axis, and the orbit normal are inclined relative to our line of sight. To accomplish this, we measure projected rotation rates (v sin i) for both the star and the companion using new near-infrared high-resolution spectra with NIRSPEC at Keck Observatory. We combine these with a new stellar photometric rotation period from TESS and a published companion rotation period from Hubble Space Telescope to obtain spin-axis inclinations for both objects. We also fitted multiple epochs of astrometry, including a new observation with NIRC2/Keck, to measure 2M0122b's orbital inclination. The three line-of-sight inclinations place limits on the true de-projected companion obliquity and stellar obliquity. We find that while the stellar obliquity marginally prefers alignment, the companion obliquity tentatively favors misalignment. We evaluate possible origin scenarios. While collisions, secular spin–orbit resonances, and Kozai–Lidov oscillations are unlikely, formation by gravitational instability in a gravito-turbulent disk—the scenario favored for brown dwarf companions to stars—appears promising
Identification of Cytokinin-Responsive Genes Using Microarray Meta-Analysis and RNA-Seq in Arabidopsis
Cytokinins are N6-substituted adenine derivatives that play diverse roles in plant growth and development. We sought to define a robust set of genes regulated by cytokinin as well as to query the response of genes not represented on microarrays. To this end, we performed a meta-analysis of microarray data from a variety of cytokinin-treated samples and used RNA-seq to examine cytokinin-regulated gene expression in Arabidopsis (Arabidopsis thaliana). Microarray meta-analysis using 13 microarray experiments combined with empirically defined filtering criteria identified a set of 226 genes differentially regulated by cytokinin, a subset of which has previously been validated by other methods. RNA-seq validated about 73% of the up-regulated genes identified by this meta-analysis. In silico promoter analysis indicated an overrepresentation of type-B Arabidopsis response regulator binding elements, consistent with the role of type-B Arabidopsis response regulators as primary mediators of cytokinin-responsive gene expression. RNA-seq analysis identified 73 cytokinin-regulated genes that were not represented on the ATH1 microarray. Representative genes were verified using quantitative reverse transcription-polymerase chain reaction and NanoString analysis. Analysis of the genes identified reveals a substantial effect of cytokinin on genes encoding proteins involved in secondary metabolism, particularly those acting in flavonoid and phenylpropanoid biosynthesis, as well as in the regulation of redox state of the cell, particularly a set of glutaredoxin genes. Novel splicing events were found in members of some gene families that are known to play a role in cytokinin signaling or metabolism. The genes identified in this analysis represent a robust set of cytokinin-responsive genes that are useful in the analysis of cytokinin function in plants
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