The Winnower

Online ISSN: 2373-146X
Time travel has captured the public imagination for much of the past century, but little has been done to actually search for time travelers. Here, three implementations of Internet searches for time travelers are described, all seeking a prescient mention of information not previously available. The first search covered prescient content placed on the Internet, highlighted by a comprehensive search for specific terms in tweets on Twitter. The second search examined prescient inquiries submitted to a search engine, highlighted by a comprehensive search for specific search terms submitted to a popular astronomy web site. The third search involved a request for a direct Internet communication, either by email or tweet, pre-dating to the time of the inquiry. Given practical verifiability concerns, only time travelers from the future were investigated. No time travelers were discovered. Although these negative results do not disprove time travel, given the great reach of the Internet, this search is perhaps the most comprehensive to date.
Positive current-potential curves of DHT chemisorbed on a Pd(111) surface prepared from a 0.02-mM solution before (red) and after (blue) co-adsorption of I. Scan rate: 2 mV/sec.  
Cyclic voltammograms of chemisorbed DHT on a Pd(111) surface prepared from a 5-mM solution before (red) and after (blue) co-adsorption of I. Scan rate: 2 mV/sec.  
Cyclic voltammograms of chemisorbed DHOT on a Pd(111) surface prepared from a 0.04- mM solution before (red) and after (blue) co-adsorption of I. Scan rate: 2 mV/sec.  
The chemisorption and electrochemical activity of 2 ,5 -dihydroxythiophenol (DHT) and 2-(8mercaptooctyl)-1,4-benzenediol (DHOT) on well-defined Pd(111) surfaces were studied by Auger electron spectroscopy (AES), low energy electron diffraction (LEED), high resolution electron energyloss spectroscopy (HREELS), and electrochemistry (EC). Results confirm that DHT is chemisorbed in two discrete orientations such that at low concentrations, DHT is oxidatively bound to the surface through the diphenol and mercapto groups as quinonoid and S moieties, respectively, whereas at high concentrations, the molecule is coordinated oxidatively through the –SH group in a vertical S- η 1
XP 2014 participation by country. Courtesy of xp2014 website.  
This report summarizes the presentations and discussions on the research activities presented at XP 2014, the 15th International Conference on Agile Processes in Software Engineering and Extreme Programming, which was held May 26-30, 2014 in Rome, Italy. XP conferences are major supporters of the agile vision of software developers, the related multidisciplinary research, and bridging industrial practitioners with academia. XP 2014 continued this trend, hosting research papers divided in the topics of agile development, agile challenges and contracting, lessons learned and agile maturity, how to evolve software engineering teaching, methods and metrics, testing and beyond, and lean development.
Novel software development approaches are embracing abstraction and automation techniques. It is claimed that abstraction and automation techniques increase the productivity, improve the reusability and lower the complexity of the projects. In this study we address these new frontiers of software development by investigating on one novel proposal, namely the Ball. The Ball is an information ecosystem for authorised information containing web content, digital content as well as service development and integration. It is claimed to improve the reusability, productivity and security of software development while lowering the complexity. While improving the software developer’s productivity it should produce smaller and more reasonable software systems, leading to a better reusability and a shorter learning phase for new developers. Up to now there exists no evidence to support these claims. In this study we analyse the Ball ecosystem from multiple perspectives. We compare it to related approaches in order to find its advantages and disadvantages. In order to provide empirical data we replicated a study where a mobile information system was developed using three different technologies. The results of this study show that the Ball ecosystem has the potential to improve the productivity of software development. However, it still needs further development and improvements before being competitive with traditional ways of developing software.
A professor at a "research" university is expected to contribute to Research, Teaching, and Service. Tenure and promotions are supposed to rest on sufficient contributions in all these areas. Traditionally, they have been separate spheres of activity, but the online media are changing rapidly, and we think will have the ultimate effect of leading to an alignment-a "syzygy'-of this trinity into a single integrated and global fabric of scientific communication and education. This will be a fine advancement for science and scholarship, but administrators and reviewers will have to adapt to this changing reality by learning new ways to assess impact when making funding and professional advancement decisions.
Medical students and residents often seek advice on a variety of topics from more senior physicians. Herein, I share the collected wisdom of 40 practicing physicians on topics of general interest to undergraduate and graduate medical trainees. Much of this advice is applicable to physicians already in practice.
The phytoconstituent echitamine isolated from stem bark of Alstonia scholaris was subjected for in vitro cataract prevention study on glucose induced cataract model. Goat lenses were incubated with test drugs in different concentrations at room temperature for 72 h. Biochemical parameters studied in the lens were electrolytes Na⁺, K+ and Na⁺-K⁺-ATPase activity. Cataractous lens treated with drug shown lower Na⁺, higher K⁺ and higher Na⁺-K⁺-ATPase activity. Lens treated with echitamine prevented formation and progress of cataract induced by glucose. Keywords; Cataract, Echitamine, Alstonia Scholaris
Top-cited authors
Emil O. W. Kirkegaard
  • Ulster Institute for Social Research
Teresa Man-Yee Chan
  • McMaster University
Brent Thoma
  • University of Saskatchewan
Michelle Lin
  • University of California, San Francisco
Davide Piffer
  • Ulster Institute for Social Research