A semaphorin code defines subpopulations of spinal motor neurons during mouse development.
In the spinal cord, motor neurons (MNs) with similar muscle targets and sensory inputs are grouped together into motor pools. To date, relatively little is known about the molecular mechanisms that control the establishment of pool-specific circuitry. Semaphorins, a large family of secreted and cell surface proteins, are important mediators of developmental processes such as axon guidance and cell migration. Here, we used mRNA in situ hybridization to study the expression patterns of semaphorins
Main Building/Samford Hall, Auburn University 5
This image is a colorized photograph showing the Main Building, Alabama Polytechnic Institute, Auburn, Ala. Alabama Polytechnic Institute is the former name of Auburn University. The Main Building has been renamed Samford Hall and houses the university's administrative offices.
Confederate Veteran Reunion, 1906, Mobile Alabama 9
This image is from a set of black and white photographs taken to commemorate the Confederate States of America Veteran Reunion held in Mobile, Alabama, on November 20-22, 1906. The highlight of the reunion was a parade through the streets of Mobile. Major General Geo. P. Harrison was commander for the event. Colonel Harvey E. Jones was Adjutant General and Chief of Staff. Brigadier Generals commanding the brigades were Jno. W.A. Samford (1st), P.D. Bowles (2nd); J.N. Thompson (3rd), and J.W. Bus
Symptoms of Posttraumatic Stress Disorder in a New Orleans Workforce Following Hurricane Katrina
On August 29, 2005, Hurricane Katrina made landfall resulting in catastrophic damage and flooding to New Orleans, LA, and the Gulf Coast, which may have had significant mental health effects on the population. To determine rates and predictors of symptoms consistent with a diagnosis of posttraumatic stress disorder (PTSD) in New Orleans residents following Hurricane Katrina, we conducted a web-based survey 6 months after Hurricane Katrina made landfall. Participants included 1,542 employees from
Attitudes Toward HIV Protease Inhibitors and Medication Adherence in an Inner City HIV Population
The objective of this pilot study was to examine attitudes toward protease inhibitors (PIs) among HIV-infected individuals and to assess the relationship between PI attitudes and adherence to PIs. Respondents were recruited from four AIDS service organizations in New York City; the total sample consisted of 97 HIV-infected individuals who were taking a PI. The sample consisted largely of African Americans and Latinos from inner city areas, and most had a low level of education. Adherence was sub
GeoMaths MathHelp Material
This site provides students with mathematics self-study material which is embedded within the context of the geosciences. The material consists of many MathHelp "notebooks" covering specific mathematical topics related to a relevant geological context, such as plate velocity or cliff erosion. The notebooks contain explanations, illustrations, and examples. A mathematical glossary is also constantly available, providing a brief explanation of mathematical keywords and links to the relevant notebo
Evolution and the Nature of Science Institutes: Lesson Plans
This website provides access to lesson plans published by the Evolution and the Nature of Science Institutes (ENSI). Based on 32 key ideas of scientific thought, the ENSI program emphasizes the importance of teaching the nature of modern science before introducing the elements of evolution as an example of modern scientific thinking. This website features lessons in three categories - the nature of science, the origins of life, and evolution. Lesson plans are organized into eight sections includ
The Study of Metals and Alloys by X-ray Powder Diffraction Methods
The object of this lesson is to introduce research students with no previous experience to the basic ideas of the use of the powder method for the study of metals and alloys.
Interior view of W. L. Walsh's poultry incubator house in Bulter County, Alabama
Caption: "Incubator house of W. L. Walsh who organized Butler Co. Butler Co." April 26, 1928.,JPEG from black-and-white photograph
1850?: Joseph Slocum, Portrait
This image is a portrait of Joseph Slocum, father of Margaret Olivia Slocum Sage. He is wearing a dark suit with a brocade waistcoat, a white shirt, and a dark cravat. His left hand rests inside his jacket, and his right arm is held away from his body, perhaps resting on a shelf or table.,This portrait shows the Hon. Joseph Slocum, Olivia's father. His career included, in addition to the business ventures documented here, one term as New York State Representative for his district -- a bribe, it
Fort Raleigh National Historic Site Teacher's Page
Roanoke Revisited supplements concepts in core curricula courses and provides teachers and their students with appropriate information for the study of pre-colonial America. Although each classroom teacher is likely to find multiple uses for the materials, the suggested method for implementation is through the use of peer-counseling techniques and experiential activities.
Cabrillo National Monument: Cabrillo as Classroom
This site describes several classroom resources about the monument near San Diego, CA. Featured is the Cabrillo Tidepool Study, a 4-week on-line unit designed for students at the 5th grade level. It covers many life science topics including ecosystems, adaptation, life-cycle, food web, and conservation, and it integrates language arts and math activities.
Artificial Intelligence: Natural Language Processing
This course is designed to introduce students to the fundamental concepts and ideas in natural language processing (NLP), and to get them up to speed with current research in the area. It develops an in-depth understanding of both the algorithms available for the processing of linguistic information and the underlying computational properties of natural languages. Wordlevel, syntactic, and semantic processing from both a linguistic and an algorithmic perspective are considered. The focus is on m
Bridging the Watershed
Bridging the Watershed (BTW) is an outreach program of the Alice Ferguson Foundation, in partnership with the National Park Service and area schools, whose purpose is to provide personally meaningful, educational experiences that connect students to their place in the natural and cultural world. BTW offers 5 core modules, as well as a host of park-specific curriculum units, that offer classroom lessons to prepare students for their field studies, guidance for data analysis after a field study,
Boston's Arnold Arboretum: A Place for Study and Recreation
provides readings, maps, and lesson ideas about the first arboretum in the U.S., which opened to the public in the 1880s. This site, though focused on a place devoted to the study of trees, can help students learn how 19th-century urban conditions influenced the development of parks and how to research the history of parks in their own communities.
Environmental Catalyst Module
In the Environmental Catalysis Module, a joint project with the Institute for Environmental Catalysis at Northwestern University, students learn what a catalyst is and become aware of the use of catalysis to promote environmental protection. Besides introducing the concept of catalysis, the module also focuses other issues such as catalytic selectivity, specificity, poisoning, condition optimization, and waste minimization. The first activity of the module introduces the concept of catalysis in
The aim of this lesson is to help students identify their personal learning styles so they can study and learn more effectively. It is the ninth lesson in the study skills series and it introduces adult learners to the concept of learning styles. Students will have an opportunity to reflect on different ways of learning and to validate different abilities and capabilities, both their own and those of others. The lessons are designed as a package with key skills reinforced in each subsequent less
Leaders: Brenda Way
Modern dance choreographer Brenda Way inspires her Oberlin Dance Company dancers to work harder and accomplish more than they ever dreamed possible. This Educator Guide addresses the history and uniqueness of ODC/San Francisco and dance in San Francisco.
The aim of this lesson is to help students acquire skills that help them prepare for examinations in a focused and organized way. Students devise strategies for reviewing material and developing a revision timeline, and learn to identify the areas of study on which they should concentrate to prepare for tests. They review helpful tips and learn to use past examinations as a guide for future ones. It is the seventh lesson in the study skills series and is intended to support adult learners who ar
Dance Masters: Margaret Jenkins
SPARK follows Artistic Director Margaret Jenkins as she rehearses her company dancers in preparation for "Danger Orange," an outdoor site-specific performance in downtown San Francisco. This Educator Guide is about the history of modern dance and the contributions of some its most innovative choreographers, including Jenkins.