145,253 research outputs found
JAAD-D-19-01125 Supplementary material
No full textSupplemental table for publication JAAD-D-19-01125 (Hasan Ali O, et al. BP180-specific IgG is associated with skin adverse events, therapy response and overall survival in non-small cell lung cancer patients treated with checkpoint inhibitors. J Am Acad Dermatol. 2019
La divinité D-GBT dans les inscriptions lihyanites
No full textAbu Al-Hasan Houssein. La divinité D-GBT dans les inscriptions lihyanites. In: Topoi, volume 9/1, 1999. pp. 197-200
Coauthor prediction for junior researchers
No full textResearch collaboration can bring in different perspectives and generate more productive results. However, finding an appropriate collaborator can be difficult due to the lacking of sufficient information. Link prediction is a related technique for collaborator discovery; but its focus has been mostly on the core authors who have relatively more publications. We argue that junior researchers actually need more help in finding collaborators. Thus, in this paper, we focus on coauthor prediction for junior researchers. Most of the previous works on coauthor prediction considered global network feature and local network feature separately, or tried to combine local network feature and content feature. But we found a significant improvement by simply combing local network feature and global network feature. We further developed a regularization based approach to incorporate multiple features simultaneously. Experimental results demonstrated that this approach outperformed the simple linear combination of multiple features. We further showed that content features, which were proved to be useful in link prediction, can be easily integrated into our regularization approach. © 2013 Springer-Verlag
Extrapleural pneumonectomy (EPP) vs. pleurectomy decortication (P/D)
No full textSurgical techniques for treatment of malignant pleural mesothelioma (MPM) have improved over the decades. The main surgical principle was accepted as macroscopic complete resection. This principle was achieved with extrapleural pneumonectomy (EPP) and extended pleurectomy/decortication (P/D). Mortality and morbidity are higher following EPP with supraventricular arrhythmias, pulmonary embolism, bronchopleural fistula and pulmonary failure being the most common, while prolonged air leak is frequent following P/D. Completion of multimodality treatment was also shown to be a prognostic factor. Many different neoadjuvant and adjuvant protocols were applied with limited effect on prognosis. While locoregional recurrence is more common following P/D, EPP patients typically recur in contralateral hemithorax and abdomen. Hemithoracic radiation following EPP was the only effective technique shown to decrease locoregional recurrence. However, neither surgical technique (EPP vs. P/D), nor types of multimodality treatment protocols were found to be prognostic in MPM. Epithelioid histology, metastasis to extrapleural lymph nodes and completion of multimodality treatment were prognostic in most of the series. In conclusion, based on the current evidence, the choice of a less morbid and mortal procedure (P/D) seems to be the logical choice in the treatment of MPM
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Pakistan at the Threshold of the 21st Century: How to Shape a Better Economic Future?
No full textPakistan has been facing a deep-seated economic and financial crisis and seemingly intractable governance issues for the last few years. Factors such as international sanctions and global economic slowdown, which have worsened Pakistan’s economic difficulties, were beyond Pakistan’s control. But by and large, the country’s economic and financial difficulties are the result of economic mismanagement in key areas over long periods. Bad governance, as reflected in widespread corruption and poor delivery of public services, and especially poor law and order have given birth to a crisis of confidence in the state. It is argued here that despite this scenario, a long and arduous process of building institutions, setting the policies right, and enforcing a rule-based governance stressing both merit and accountability can put Pakistan back on the road to shared prosperity. Resolving financial problems, accelerating demographic transition, exploiting tremendous agricultural potential, improving both availability and quality of education, increasing competitiveness and bringing about structural change in exports and industry, and reforming the government are crucial policy actions that can help shape a better future for the country and end the economic drift.
QUANTUM-DOT ORGANIC LIGHT-EMITTING DIODES ON SILICON SUBSTRATE
No full textUtilization of quantum dots (QDs) as luminophores in organic light emitting diodes (OLEDs) has proven to be an effective way to produce a highly-efficient and cost-effective LED structure. Integrating a light emitting function on a silicon platform is expected to complement Si electronics advancing Si photonics. As an efficient means of driving electrons and holes into a QD layer of OLED structure formed on Si substrate, we have developed a novel injection method that exploits two-dimensional electron gas (2DEG) available at Si/SiO2 interface. By employing a stacked p-Si/SiO2//SiO2/n-Si structure having a cleaved edge on one side we demonstrated that Coulombic repulsion at the cleaved edge enables low-voltage emission of 2DEG. To utilize this low-voltage injection phenomenon, we fabricated OLED on an n-Si substrate using Si as a cathode and the inorganic quantum dots as a luminophore. In this device structure the junction area is defined by a lithographically patterned oxide layer on Si substrate and is designed to allow a wide range of scalability of lateral dimension down to a nanometer range. By varying the junction dimensions and geometry, the electron injection process is found to occur predominantly at junction periphery, not area, resulting in low turn-on voltage (~1-2V). Moreover, to utilize the ballistic injection of 2DEG through a void channel, we fabricated an OLED structure stacked on a 2D material (h-BN monolayer) suspended on a nano-hole-etched SiO2/Si substrate. The 2DEG injection produces one-dimensional emission of light along junction edges. This edge injection/emission QD-OLED structure, when scaled down to a sub-10nm range, offers an interesting approach to developing single quantum-dot light sources for quantum information processing.
QUANTUM-DOT ORGANIC LIGHT-EMITTING DIODES ON Si SUBSTRATE
Daud Hasan Emon
University of Pittsburgh, 201
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
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