SRI International

About: SRI International is a nonprofit organization based out in Menlo Park, California, United States. It is known for research contribution in the topics: Ionosphere & Laser. The organization has 7222 authors who have published 13102 publications receiving 660724 citations. The organization is also known as: Stanford Research Institute & SRI.

Adsorption of plasma proteins in solution to uncharged, hydrophobic polymer surfaces

Abstract: Infraref internal reflection spectroscopy has been used to study the adsorption of certain plasma proteins on a variety of hydrophobic polymer surfaces. The behavior of the systems studied was almost identical. Under Static conditions the proteins appear to be rapidly adsorbed as monomolecular layers from solutions varying in concentration between a few mg-% and normal plasma levels. These monolayers are deduced to be closely packed arrays in which the protein molecules appear to retain their native globular form. The bearing of these results on the mechanism of surface-induced coagulation is significant.

Shielded Coupled-Strip Transmission Line

Abstract: An analysis is made of the odd and even TEM modes on a pair of parallel co-planar strips midway between ground planes. Rigorous formulas are presented for the case of zero-thickness strips, while approximate formulas are given for strips of finite thickness and for strips printed on opposite sides of a thin dielectric sheet supported in air between ground planes (AIL construction). The characteristic impedances and the phase velocities of the two modes are necessary and sufficient information for the design of directional couplers, coupled-line filters, and other components utilizing the coupling between parallel-strip lines. In order to facilitate design work, nomograms are included in the paper which give the dimensions of the coupled-strip cross section in terms of the odd- and even-mode characteristic impedances. The characteristic-impedance scales of these nomograms may be read to an accuracy of better than one per cent over a wide range of values that is sufficient for most purposes.

First experiences with early intervention: a national perspective.

Abstract: Background. Families of young children with disabilities are eligible for early intervention ser- vices as mandated by Part C of the Individuals With Disabilities Education Act. Although prior research has shown that families are generally satisfied with early intervention, this research has not been based on a na- tionally representative sample of families, nor has it sys- tematically examined perceptions of the initial experi- ences entering early intervention. Objective. This study was designed to determine families' initial experiences in determining their child's eligibility, interactions with medical professionals, effort required to obtain services, participation in planning for services, satisfaction with services, and interactions with professionals. Method. We interviewed a nationally representative sample of 3338 parents of young children with or at risk for disability. All the children had recently entered an early intervention program operated under the auspices of Part C of the Individuals With Disabilities Education Act. Results. The average age at which families reported a concern about their child was 7.4 months. A diagnosis was made, on average, 1.4 months later, the child was referred for early intervention an average of 5.2 months after the diagnosis, and the individualized family service plan was developed 1.7 months later or at an average age of 15.7 months. Most families were very positive about their entry into early intervention programs. They re- ported discussing their concerns with a medical profes- sional and finding that person helpful. Families reported relative ease in accessing services, felt that services were related to their perceived needs, rated positively the pro- fessionals working in early intervention, and felt that they had a role in making key decisions about child and family goals. A small percentage of families experienced significant delays in getting services, wanted more in- volvement in service planning, or felt that services were inadequate, and nearly 20% were unaware of the exis- tence of a written plan for services. Minority families, families with limited income, and families with less- educated mothers were more likely to report negative experiences. Conclusions. We conclude that the beginning of early intervention services generally is highly successful and responsive, a finding that should give pediatricians more confidence in referring families for early intervention services. However, research and local evaluation efforts are needed to develop strategies to assure that all fami- lies receive services in a timely and appropriate fashion. Pediatrics 2004;113:887- 896; early intervention, early identification, families, disability.

Learning Theories and Education: Toward a Decade of Synergy

Abstract: Acknowledgments: This work was supported by a grant from the National Science Foundation (NSF#0354453). Any opinions, findings and conclusions expressed in the paper are those of the authors and do not necessarily reflect the views of the National Science Foundation. The authors wish to thank the following individuals for their contributions to the chapter: Leah Bricker, Hank Clark, Barbara Conboy, Joan Davis, Katie Hardin, Beth Koemans, Tiffany Lee, Laurie McCarthy, Maisy McGaughey, Raj Raizada, Suzanne Reeve, Maritza Rivera-Gaxiola, Tom Satwicz, Yang Zhang, and Heather Toomey Zimmmerman.