Windows of technological opportunity: do technological booms influence the relationship between firm size and innovativeness?

Many papers have been written about the effect of firm size on innovativeness, revealing a positive, a negative or a mixed impact. To this day, the so-called Schumpeterian hypothesis of the above-average innovativeness of large firms has been neither confirmed nor rejected, often because of insufficient data or a too-short observation period. Many studies concentrate only on a specific region or a specific sector, or they analyze a very short time period. Windows of technological opportunities, providing technological booms for both firms and sectors, have not yet been investigated. An analysis of Germany’s chemical, metal and electronic-engineering sectors between 1877 and 1932 reveals that the sector-specific long-term relationship between firm size and innovativeness is negative, except during times of specific technological booms. In combination with firm-specific characteristics, this new aspect can contribute to a better understanding of the long-term relationship between firm size and innovativeness. --Effect of firm size on innovativeness,technological boom,Schumpeterian hypothesis

Opening Closed Doors: A Rationale for Creating a Safe Space for Tutors Struggling with Mental Health Concerns or Illnesses

Because writing centers exist to help students find success in academia—to enter doors that may otherwise be closed to them—writing center literature rightly discusses the need to work with students of all backgrounds and abilities (Pemberton; Neff; Hamel). Writing center personnel have written about how writing centers and other campus resources can support students with disabilities (Hewett; Logan; Zimmerman), as well as the diverse ways in which these students learn and what we, in turn, can learn from them. The field actively recognizes that writing centers and student support centers in general are actually engaging in political advocacy, a fact that has been noted in this very publication.University Writing Cente

A remote sensing evaluation of potential for sinkhole occurrence

The relationship between lowering of the water table and sinkhole development in Pierson and in Hillsborough County, Florida was investigated. The locations of recently developed (1973) collapses were examined with respect to lineaments or fracture traces that are expressed in the terrain and visible in aerial photography and satellite imagery. It was anticipated that these relationships would provide the basis for establishment of criteria for mapping those land areas that have the greatest potential for sinkhole development. A very good correlation was found between mapped lineament intersections and known location of sinkhole occurrences for both study areas. This indicates that lineament and fracture trace mapping may be very useful in locating zones with the greatest potential for sinkhole development. It is further shown that this information is quite beneficial in land use planning applications

Windows of technological opportunity : do technological booms influence the relationship between firm size and innovativeness?

Many papers have been written about the effect of firm size on innovativeness, revealing a positive, a negative or a mixed impact. To this day, the so-called Schumpeterian hypothesis of the above-average innovativeness of large firms has been neither confirmed nor rejected, often because of insufficient data or a too-short observation period. Many studies concentrate only on a specific region or a specific sector, or they analyze a very short time period. Windows of technological opportunities, providing technological booms for both firms and sectors, have not yet been investigated. An analysis of Germany?s chemical, metal and electronic-engineering sectors between 1877 and 1932 reveals that the sector-specific long-term relationship between firm size and innovativeness is negative, except during times of specific technological booms. In combination with firm-specific characteristics, this new aspect can contribute to a better understanding of the long-term relationship between firm size and innovativeness

A Half-Century of Nebraska Education

The pioneers’ journey across Nebraska was rough and ever changing, and the same can be said for the educating of Nebraskans on the state’s history. Since the centennial of Nebraska statehood in 1967, changes to the education of Nebraska history has made students metaphorically traverse over both rough, hilly topics and flat, grassy lessons. These changes can be seen by examining sources from various Nebraska schools dating back to the 1960s. The variety and pace of Nebraska history curriculum change throughout these schools is wild and varied, with periods of little changes between the decades to overarching changes in only a few years. The examination of these sources will inform educators as to how the education of the state’s history has changed, what it is in its current form, and what this will tell educators about the future of state history education

French Onion Beef Sandwiches Au Jus

A recipe for French onion beef sandwiches au jus

Stoplight Detection: Implementation and Forgery Attacks

One of the up and coming topics in the world of technology is that of autonomous vehicles and self-driving cars. Autonomous vehicle technology has the potential to make a dynamic impact on society, drastically altering global transportation and the automotive industry. When human beings are no longer responsible for making the decisions required of controlling a vehicle, the importance of security and accuracy will become absolutely vital for these autonomous systems. If the system can be hacked and fed false information, there is the possibility of putting innocent lives at risk. In a world of growing global terrorism, this is a key and reasonable concern that must be addressed if autonomous cars are truly the future of global transportation. The goal of this project is to create a system that will take the output of a self-driving car’s camera and use it to detect if a stoplight is present in an image and collect information about the current state of the stoplight and how it changes over time. This collected data is paired with a supervised learning algorithm, such as the K Nearest Neighbor algorithm, which gives the system the ability to classify what type of color change is occurring in a stoplight. In addition to collecting raw data from several stoplights, the system was tested by creating and assessing several different types of forgery attack to see if they cause the identification algorithm to suffer a drop in accuracy. Ultimately, the purpose of this research is to create a more intelligent system in autonomous vehicles that will be able to detect forgery attacks on its camera system. This intelligent system would work to prevent situations where attacks on the system could result in collisions between vehicles and nearby pedestrians

Cosmological particle creation in states of low energy

The recently proposed states of low energy provide a well-motivated class of reference states for the quantized linear scalar field on cosmological Friedmann-Robertson-Walker spacetimes. The low energy property of a state is localized close to some value of the cosmological time coordinate. We present calculations of the relative cosmological particle production between a state of low energy at early time and another such state at later time. In an exponentially expanding Universe, we find that the particle production shows oscillations in the spatial frequency modes. The basis of the method for calculating the relative particle production is completely rigorous. Approximations are only used at the level of numerical calculation.Comment: 24 pages, 7 figure

Genetic And Phenotypic Evolution In The Ornate Chorus Frog (pseudacris Ornata): Testing The Relative Roles Of Natural Selection,

Understanding how migration, genetic drift, and natural selection interact to maintain the genetic and phenotypic variation we observe in natural populations is a central goal of population genetics. Amphibians provide excellent model organisms for investigating the interplay between these evolutionary forces because amphibians are generally characterized by limited dispersal abilities, high philopatry, and are obligately associated with the areas around suitable habitats (e.g. breeding ponds). Thus, on relatively small geographic scales, the relative effects of all of these evolutionary forces can be studied together. Here, we study the interaction of migration, genetic drift, natural selection, and historical process in the ornate chorus frog (Pseudacris ornata). We report the development and characterization of 10 polymorphic microsatellite genetic markers. Number of alleles per locus ranged from 2 to 21 averaging 9.2 and expected heterozygosities ranged from 0.10 to 0.97 averaging 0.52. However, in an analysis of two populations, three locus-by-population comparisons exhibited significant heterozygote deficiencies and indicated that null alleles may be present some loci. Furthermore, we characterized genetic structure and historical biogeographic patterns in P. ornata using these microsatellite markers along with mitochondrial DNA sequence data. Our data indicate that in these frogs, migration may play a large role in determining population structure as pairwise estimates of FST were relatively small ranging from 0.04 to 0.12 (global FST = 0.083). Additionally, we observed an overall pattern of isolation-by-distance in neutral genetic markers across the species range. Moreover, our data suggest that the Apalachicola River basin does not impede gene flow in P. ornata as it does in many vertebrate taxa. Interestingly, we identified significant genetic structure between populations separated by only 6 km. However, this fine scale genetic structure was only present in the more urbanized of two widespread sampling localities. Finally, in this study, we demonstrated that there was a significant correlation between the frequency of green frogs and latitude. There was a higher frequency of green frogs in southern samples and a lower frequency of green frogs in northern samples. However, when we interpreted this phenotypic cline in light of the overall pattern of isolation-by-distance, it was apparent that the neutral evolutionary forces of genetic drift and migration could explain the cline, and the invocation of natural selection was not necessary