How many upper Eocene microspherule layers: More than we thought

The scientific controversy over the origin of upper Eocene tektites, microtektites and other microspherules cannot be logically resolved until it is determined just how many events are involved. The microspherule-bearing beds in marine sediments have been dated using standard biozonal techniques. Although a powerful stratigraphic tool, zonal biostratigraph has its limitations. One is that if an event, such as a microspherule occurrence, is observed to occur in a zone at one locality and then a similar event observed in the same zone at another locality, it still may be unwarranted to conclude that these events exactly correlate. To be in a zone a sample only need be between the fossil events that define the zone boundaries. It is often very difficult to accurately determine where within a zone one might be. Further, the zone defining events do not everywhere occur at the same points in time. That is, the ranges of the defining taxa are not always filled. Thus, the length of time represented by a zone (but not, of course, its chronozone) can vary from place to place. These problems can be offset by use of chronostratigraphic modelling techniques such as Graphic Correlation. This technique was used to build a Cretaceous and Cenozoic model containing fossil, magnetopolarity, and other events. The scale of the model can be demonstrated to be linear with time. This model was used to determine the chronostratigraphic position of upper Eocene microspherule layers

The climatological relationships between wind and solar energy supply in Britain

We use reanalysis data to investigate the daily co-variability of wind and solar irradiance in Britain, and its implications for renewable energy supply balancing. The joint distribution of daily-mean wind speeds and irradiances shows that irradiance has a much stronger seasonal cycle than wind, due to the rotational tilt of the Earth. Irradiance is weakly anticorrelated with wind speed throughout the year ($-0.4 \lesssim \rho \lesssim -0.2$): there is a weak tendency for windy days to be cloudier. This is particularly true in Atlantic-facing regions (western Scotland, south-west England). The east coast of Britain has the weakest anticorrelation, particularly in winter, primarily associated with a relative increase in the frequency of clear-but-windy days. We also consider the variability in total power output from onshore wind turbines and solar photovoltaic panels. In all months, daily variability in total power is always reduced by incorporating solar capacity. The scenario with the least seasonal variability is approximately 70%-solar to 30%-wind. This work emphasises the importance of considering the full distribution of daily behaviour rather than relying on long-term average relationships or correlations. In particular, the anticorrelation between wind and solar power in Britain cannot solely be relied upon to produce a well-balanced energy supply.Comment: 19 pages, 19 figures, accepted for publication in Renewable Energy. Text updated to match accepted version (one footnote added, some references corrected

Using the Twentieth Century Reanalysis to assess climate variability for the European wind industry

We characterise the long-term variability of European near-surface wind speeds using 142 years of data from the Twentieth Century Reanalysis (20CR), and consider the potential of such long-baseline climate data sets for wind energy applications. The low resolution of the 20CR would severely restrict its use on its own for wind farm site-screening. We therefore perform a simple statistical calibration to link it to the higher-resolution ERA-Interim data set (ERAI), such that the adjusted 20CR data has the same wind speed distribution at each location as ERAI during their common period. Using this corrected 20CR data set, wind speeds and variability are characterised in terms of the long-term mean, standard deviation, and corresponding trends. Many regions of interest show extremely weak trends on century timescales, but contain large multidecadal variability. Since reanalyses such as ERAI are often used to provide the background climatology for wind farm site assessments, but contain only a few decades of data, our results can be used as a way of incorporating decadal-scale wind climate variability into such studies, allowing investment risks for wind farms to be reduced.Comment: 18 pages, plus 4 page supplementary information included here as Appendix D. This is the authors' corrected version, matching the content of the version accepted by Theoretical and Applied Climatolog

Construction and evaluation of measures of identification of sound elements in words in kindergarten,

Thesis (M.A.)--Boston Universit

When Two Worlds Meet: Academic Advisors’ Understanding of the Exploratory Student Experience at a Hispanic-Serving Institution

Academic advisors are essential to the college experience (Filson & Whittington, 2013). They serve as students’ higher education guides and translators in addition to being their direct link to the institution. Given the pivotal role they serve in helping students navigate the myriad transitions encountered throughout their college career, tapping into their vast experience with students, parents, and administration provided a unique point of view that would not otherwise be possible. The purpose of this study was to explore academic advisors\u27 understanding of the exploratory FTIC student experience at a Hispanic Serving Institution, which was chosen because of potential unique impacts on its non-white populations (Pascarella, 2006). In this qualitative study, 11 current and former academic advisors who worked with exploratory students at Florida International University were interviewed using a semi-structured format. Student interviews were used for triangulation purposes. Once interviews were transcribed, thematic analysis was used to analyze the data for common themes. The study found that participants saw a need to destigmatize the exploration process because it negatively impacts how students feel about being labeled exploratory. According to the advisors, many students are ashamed of identifying as exploratory. Advisors were vocal about their frustration with external pressures (e.g., excess credit, metrics, and department policies) affecting students’ progress and by students’ expression of the unfairness of being limited to 30 credits when that is not enough time to go through the exploration process. Moreover, this study revealed a lack of structured opportunities for exploratory students to meet other exploratory students. The advisors acknowledged that student-to-student connections are important to the undergraduate experience and can contribute to feeling a sense of belonging. The findings of this study can also be used to develop training and professional development opportunities for academic advisors to enhance their knowledge of this complex student population, help students develop a positive exploratory identity, and produce resources that can improve the advising experience for exploratory students

Alien Registration- Lakin, Hazel E. (Portland, Cumberland County)

https://digitalmaine.com/alien_docs/21850/thumbnail.jp

Alien Registration- Lakin, Hazel E. (Portland, Cumberland County)

https://digitalmaine.com/alien_docs/21850/thumbnail.jp

Letter from E. Hazel Clark

Letter concerning a position in Domestic Science at Utah Agricultural College

Alien Registration- Batchelder, Hazel E. (Howland, Penobscot County)

https://digitalmaine.com/alien_docs/7957/thumbnail.jp

Alien Registration- Allain, Hazel E. (Fort Kent, Aroostook County)

https://digitalmaine.com/alien_docs/24588/thumbnail.jp