The Growth of Activities In Kansas High Schools

This study of the growth of activities in Kansas High Schools includes those activities most commonly called the extra-curricular activities and is limited to athletics, debate, forensic activities, dramatics, Kansas Association for Youth, and music. The method of conducting the research has been through the use of periodicals, books, and the minutes of meetings of the organizations of control mentioned in this paper

Teaching Differential Equations without Computer Graphics Solutions is a Crime

In the early 1980s computer graphics revolutionized the teaching of ordinary differential equations (ODEs). Yet the movement to teach and learn the qualitative methods that interactive graphics affords seems to have lost momentum. There still exist college courses, even at big universities, being taught without the immense power that computer graphics has brought to differential equations. The vast majority of ODEs that arise in mathematical models are nonlinear, and linearization only approximates solutions sufficiently near an equilibrium. Introductory courses need to include nonlinear DEs. Graphs of phase plane trajectories and time series solutions allow one to see and analyze the crucial behaviors, whether or not analytic solutions exist. Furthermore, interactivity is key to experimenting with parameters in order to modify behaviors. Now, a quarter of a century later, we have far more technology--but many features of the original software have been lost in the rush to the future. We have both educational and software concerns. This is not only an academic issue--scientists at multiple nonacademic agencies (e.g., FDA, NIH, USCGS) immediately took up our software tools in the late 1980s, and increasingly more of our students come from fields that did not traditionally require mathematics background. We should not be depriving today\u27s students of the skills to analyze behaviors of solutions to ODEs

Cross-Service Investigation of Geographical Information Systems

This research investigated the armed services current uses of GIS, and asked the question whether or not a joint GIS program could benefit the DOD. An information technology implementation model was presented as a framework to implement a joint GIS program. It was found that all four armed services use GIS for forward deployments. The Army has its Combat Terrain Information System (CTIS). The Navy\u27s digital nautical charts are a GIS. The Marine Corps has created their Geographically Linked Information Display Environment (GLIDE) program, which is similar to a map repository. Finally, the Air Force has its GeoBase program for installation GIS, and GeoReach is the expeditionary deployment base-planning subset. The research methodology combined a case study and a Delphi study. The case study research examined a single Army GIS unit for current GIS implementation methods and uses. The Delphi study asked eight DOD GIS experts their opinions about current GIS uses and the possibility of a joint GIS program. Through the case study and Delphi research, it was found that information flow between the services is limited and that a joint GIS program may bring improved and new planning and executing capabilities for the DOD

General Relativity and Gravitation: A Centennial Perspective

To commemorate the 100th anniversary of general relativity, the International Society on General Relativity and Gravitation (ISGRG) commissioned a Centennial Volume, edited by the authors of this article. We jointly wrote introductions to the four Parts of the Volume which are collected here. Our goal is to provide a bird's eye view of the advances that have been made especially during the last 35 years, i.e., since the publication of volumes commemorating Einstein's 100th birthday. The article also serves as a brief preview of the 12 invited chapters that contain in-depth reviews of these advances. The volume will be published by Cambridge University Press and released in June 2015 at a Centennial conference sponsored by ISGRG and the Topical Group of Gravitation of the American Physical Society.Comment: 37 page

The nature and function of the Charles Hyden Goodwill Inn with special emphasis upon its case work

Thesis (M.S.)--Boston University, 1941. This item was digitized by the Internet Archive

Anaplastic Thyroid Carcinoma Histologically Mimicking a Plasmacytoma.

Anaplastic (undifferentiated) thyroid carcinoma (ATC) is a rare malignancy which may arise from transformation of a pre-existing differentiated carcinoma. We report the unique case where a lesion of thyroid origin presented with the histological features of mature plasma cells. Immunohistochemistry confirmed the lesion to be an anaplastic thyroid carcinoma arising from papillary thyroid carcinoma. A tumor mimicking a malignancy of a different cellular origin can lead clinicians to incorrect treatment approaches. Careful correlation with clinical details and knowledge of these unique presentations is important for reaching the correct diagnosis

Diatom Communites in the Cuyahoga River (USA): Changes in Species Composition Between 1974 and 1992 Following Renovations in Wastewater Management

Author Institution: Department of Biology, The University of AkronPeriphytic diatom communities along the Cuyahoga River were analyzed for possible changes in species composition resulting from improvements in wastewater management within the river basin during the past 18 years. The results, compared to a similar study conducted in 1974, and controlled for seasonality and microhabitat effects, show an increase in total diatom species (75 to 105), especially pollutionsensitive species, and a reduction in pollution-tolerant species—all indications of improved water quality. Reductions were evident in the number and proportion of pollution-tolerant species such as Gomphonema parvulum, Melosira varians, Navicula cryptocephala, N. pelliculosa, Nitzschia communis, N.palea, and Synedra ulna. The number and proportion of pollution-sensitive species such as Achnanthes linearis, Amphora pediculus, Cocconeis pediculus, Diatoma vulgare, Navicula tripunctata, and Nitzschia dissipata increased. Despite changes in species composition, headwaters of the river, managed as a domestic water supply and Ohio Scenic River, continue to support 2-3 X more taxa than the lower river below the City of Akron. Substantial degradation of water quality in the lower river persists despite recent restoration efforts. A major source of pollution occurs upstream from the Akron Water Pollution Control facility because sample sites above and below this facility were very similar in diatom species composition, each dominated by Nitzschia amphibia (-40%), a well known saprophilic diatom associated with organically polluted water. Overflows from combined stormwater-sanitary sewers, within the Akron metropolitan area are the most probable cause of the continued suppression of diatom species diversity

The embryonic development of the California Gull

journal articleThe California gull (Larus califomicus) is a summer resident in Utah nesting commonly on certain islands in Great Salt Lake as well as at man-made refuges on the east side of the lake. Many aspects of the biology of the species have been investigated (Beck, 1942; Behle, 1958; Behle and Goates, 1957; Behle and Woodbury, 1952; Greenhalgh, 1952; Johnston, 1956; Odin, 1957; Woodbury, Behle and Sugden, 1946) and it seemed that an opportunity was presented to study yet another feature, namely, the early embryonic development. This conviction was strengthened when it was noted in Romanoff's (1960) extensive work on the avian embryo that whereas there is mention of embryological studies on some species of gulls of the genus Larus, the California gull was not included. Furthermore, no study of the gross external anatomy of any gull seemed to have been made; rather the studies had been histological investigations of the internal anatomy