Signal Propagation, with Application to a Lower Bound on the Depth of Noisy Formulas

We study the decay of an information signal propagating through a series of noisy channels. We obtain exact bounds on such decay, and as a result provide a new lower bound on the depth of formulas with noisy components. This improves upon previous work of N. Pippenger and significantly decreases the gap between his lower bound and the classical upper bound of von Neumann. We also discuss connections between our work and the study of mixing rates of Markov chains

Catalogue of paintings by Joaquín Sorolla y Bastida brought to America and exhibited by The Hispanic Society of America at the Buffalo Fine Arts Academy

Copia digital. Madrid : Ministerio de Educación, Cultura y Deporte. Subdirección General de Coordinación Bibliotecaria, 201

From TA to Faculty Member: The Socialization of Doctoral Completers

The purpose of this study was to identify the relationship between teaching assistantship training while in graduate school and the perceived preparation of new faculty entering the academy. This study also took into account the types of tasks participants completed while serving as teaching assistants and how those tasks related to preparation for faculty life. Through the participants shared experiences three positive themes emerged from their experiences as new faculty. Additionally, the participants perceptions of the faculty work role were strengthened as a result of the teaching assistant experience. Unfortunately, five negative or less desirable themes emerged indicating that additional training is needed during the teaching assistantship experience to better prepare doctoral students for the faculty work role. Taken together, the themes discovered from this study not only necessitate the need for future research but also support implementation of training for all teaching assistants who aspire to enter the academy. By focusing on the teaching assistantship as a possible training mechanism, the experiences of new faculty can be further enhanced

Catalogue of the exhibition of paintings by señor Sorolla y Bastida at the Grafton Galleries : May, June & july, 1908

Copia digital. Madrid : Ministerio de Educación, Cultura y Deporte. Subdirección General de Coordinación Bibliotecaria, 201

The Condition of the Blood-Vessels During Shock.

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A study of maternal resistance to treatment in the Massachusetts Division of Mental Hygiene Child Guidance Clinics in cases closed as unimproved during fiscal year, July, 1948 to June, 1949.

Thesis (M.S.)--Boston Universit

Construction details and general discussion of the 10 watt radio telephone transmitter at the Missouri School of Mines

In radio communication it is necessary to have a device to radiate electrical waves and a device to receive electrical waves. Devices used for this purpose are called antennas --The Antenna, page 1

Regional Correlation and Depositional History using Well Log and Core Data of the Geneseo-Burket from the Poseidon 8M Well, Westmoreland County PA, USA

Abstract Regional Correlation and Depositional History using Well Log and Core Data of the Geneseo-Burket from the Poseidon 8M Well, Westmoreland County PA, USA Spencer Williams Natural gas producers have invested billions of dollars in Pennsylvania and West Virginia to establish significant gas production from the Devonian Marcellus Shale and the deeper Ordovician Utica-Point Pleasant interval. In addition, commercial gas production has been reported from several other Devonian shale units in the Appalachian region, including the Rhinestreet, Levanna, and Geneseo-Burket. The Marcellus Shale is the largest natural gas play in the United States. The Marcellus is located directly under the Mahantango and Tully Limestone formations with a gross thickness of organic-rich shale in the subsurface from less than 10 feet in eastern Ohio to around 100 feet in north-central West Virginia and several hundred feet in central and northeastern Pennsylvania. The Geneseo-Burket shale is similar to the Marcellus as one of the most highly radioactive and organic-rich of the Devonian shale units, yet little is known of the stratigraphic distribution, depositional history, and gas production. In the future, the Geneseo-Burket could be an explicit exploration target. The main objective of this research is to examine the geologic characteristics of the Geneseo-Burket shale that will ultimately allow an assessment of the depositional history, the stratigraphic distribution across the basin and ultimately the potential hydrocarbon resources. This study uses several well logs to conduct a petrophysical evaluation of the Geneseo-Burket shale, primarily located in West Virginia and Pennsylvania. The contact of the Geneseo-Burket shale is examined with the underlying Tully Limestone and the overlying contact with the Lodi Limestone and organic-lean Penn Yan Shale. These contacts are compared to a similar and more widely examined stratigraphy located deeper in the subsurface between the organic-rich Marcellus Shale and the overlying organic-lean Mahantango Shale and underlying Onondaga Limestone. In this research we find that in the Poseidon 8M well, the organic-rich Geneseo-Burket shale is similar in mineralogy to that of the Marcellus Shale, and may be the result of geochemical changes in the water column

Sorolla exhibition : Grafton Galleries may, june, july, 1908 : Numbers and titles of the paintings by señor Sorolla

Copia digital. España : Ministerio de Cultura y Deporte. Subdirección General de Coordinación Bibliotecaria, 202