Rhythms of social interaction: messaging within a massive online network

We have analyzed the fully-anonymized headers of 362 million messages exchanged by 4.2 million users of Facebook, an online social network of college students, during a 26 month interval. The data reveal a number of strong daily and weekly regularities which provide insights into the time use of college students and their social lives, including seasonal variations. We also examined how factors such as school affiliation and informal online friend lists affect the observed behavior and temporal patterns. Finally, we show that Facebook users appear to be clustered by school with respect to their temporal messaging patterns

Simulation of an Ethylene Flame with Turbulence, Soot and Radiation Modeling

This thesis will investigate soot models that are available in commercial codes. We will look at the effect of turbulence models, gravity, soot models and radiation. Simulations will be compared to Coppalle and Joyeux [1]. The flame is an ethylene air diffusion flame at a Reynolds number of 5700. Simulations show the SST turbulence model, one-step soot model and Rosseland radiation model including gravity agree well with experimental data (temperature and soot). Flamelet soot modeling from Carbonell et al. [2] and flamelet radiation modeling from Doom [3] has been incorporated and compared as well

Students’ Perceptions on Teacher Behaviour at College Level

The study sought to find out the relationship between how students perceive their teachers behaviour. Stratified random sampling techniques were used 244 under graduate students studying at different college affiliated to Burdwan University, Burdwan, West Bengal. Students’ Perception on teacher’s behavior tool (SPTB) was used as tool for collecting data on students’ perceptions on teacher behavior.  A trial test of 40 students using split-half reliability test was carried out which yielded reliability coefficients of 0.72 for SPTB. Pearson Product Moment Correlation and t-statistics were used to answer the research questions and test the hypotheses. Findings show that the way students’ perceive their teachers’ in terms of knowledge of their subjects, personality, professional ethics ,communication ability, teaching methods and classroom management skills has a significant relationship with students’ attitude towards subject. Keywords: Teacher behaviour, College, Perceptio

Alien Registration- Golder, Ada (Presque Isle, Aroostook County)

https://digitalmaine.com/alien_docs/33700/thumbnail.jp

An Exploration of the Interrelationships between Inclusive Education, School Structure and Flexibility, Collaboration and School Values

School improvement literature and research into inclusive education has advocated a more connected approach to developing an understanding of school effectiveness and inclusion (Florien & Rouse, 2001); yet, knowledge gaps exist in the understanding of how school structure, flexibility, collaborative practice and school values combine to create more inclusive schools. Recent inclusive education research emphasises the need to re-evaluate conceptual models of inclusion and how individual contexts combine process, structure and expertise, to personalise inclusive practice (Kinchella & Senior, 2008). Booth et al.’s (2002) Index for Inclusion proposed three dimensions that contribute to the development of inclusion, inclusive culture, inclusive policy and inclusive practice. Dyson et al. (2002) suggested that attempts to develop inclusive schools should pay attention to the development of ‘inclusive’ cultures and, particularly, to the building of some degree of consensus around inclusive values and development of general principles of school organisation and classroom practice. Concurrently, research by Pang (2004) on school structures suggested four binding forces that hold organisations together, cultural linkage, bureaucratic linkage, loose coupling and tight coupling. This thesis examines the interrelationship between inclusive education, school structure and flexibility, collaboration and school values. A two phase multiple case study approach is used; the first using 6 schools as exploratory case studies, then, 3 as descriptive case studies to help explore the profile of an inclusive school and the interrelationships between the four elements above. The exploratory case studies found a common emerging profile of inclusive schools. The subsequent phase two case studies present a description of the interrelationship between collaborative practices; inclusive schooling and school organisation manifest themselves in similar types of schools. Therefore, this thesis contributes to inclusive education knowledge by proposing how the emerging profiles of inclusive schools contributes to a conceptual model of inclusion that have both theoretical and applied school improvement implications

A Survey of Alaska, 1743-1799

"In this paper an attempt will be made to give a brief sketch of the history and conditions of Alaska from the time of its discovery to the organization of the Russia American Company.

Large-scale volcanism on the terrestrial planets

Evidence for mafic volcanism has been found on each planet in the inner Solar System. Lava flows on these planets range in size from 10s to 1000s of kilometers in extent. I investigated large-scale lava flows on Mercury, Earth, and Mars throughout the chapters in this dissertation. Each of these lava flows provides an avenue to study the emplacement and evolution of lava on various planets and under differing conditions, the factors that affect their overall extent, and potential source areas. Chapter One investigates large-scale lava flows in the Cerberus region on Mars, specifically to understand their emplacement history, material properties, and possible magma sources. Mapping and crater counting are used to investigate these flows. The derived absolute age estimates suggest an anomalous trend of decreasing ages with increasing distance from the flow source. Through pi-group scaling, changes to the material properties of the lavas during emplacement are identified as the cause for this decreasing age trend and are attributed to increased strength, and decreased porosity, of the lava. These newly derived absolute age estimates are also used to infer the source of the magma feeding these young and extensive lava flows originated below the Cerberus region. Chapter Two focuses on long and areally extensive lava flows on Earth and Mars, in order to determine the effect of viscosity on the emplacement of 1000+ km flows. In particular, low viscosity lavas are expected to generate such large lava flows. The terrestrial and martian lava flows are interpreted to have been emplaced rapidly, with their final extents limited by the total erupted volume of lava. Through computer modeling, simulations are performed to determine the viscosity values responsible for the observed lava flow extents. The results of this work support low bulk viscosities that correspond to a basaltic composition produce the best reproductions of the martian flows. Chapter Three investigates volcanism on Mercury, which hosts broad smooth plains in three locales, which have varying interpretations for their emplacement, though volcanic processes are favored. The smooth plains units located in the annulus surrounding the Caloris impact basin contain intermingled high-reflectance red and low-reflectance blue plains. Mapping, crater counting, and spectral analyses are used to suggest the emplacement mechanism for these smooth plains. The results of this work support a volcanic origin, though impact related processes cannot be discounted