Frequency shifting with a solid-state switching capacitor

Frequency shifting, commonly used in electronic signal processing, is applied in tuning, automatic frequency control, antenna element switching, phase shifting, etc. Frequency shifting can be accomplished economically and reliably with simple circuit comprising conventional resistor and solid-state switching device which can be equivalent to two capacitors, depending on switching state

Composite metal-oxide device has voltage sensitive capacitance

Device with step function variation of the capacitance is useful for voltage-controlled oscillator circuits and as a voltage-sensitive switch. Simplicity of construction makes the device suitable for large-scale integration, microelectronic circuits

Terrorism and the Response to Terrorism in New York City During the Long Sixties

During a period stretching from the mid 1960s until the mid 1970s, the United States and especially New York City experienced a wave of terrorism unprecedented in many ways. Never before, and never since, have such a variety of actors from all across the political spectrum engaged in this particular form of political violence during the same period of time and especially in the same small geographic area. New York City endured a stretch of attacks that can be labeled as terrorism from 1969 to mid-1970 that the Commissioner Howard R. Learly of the New York City Police Department (NYPD) characterized it as the year of bombings in “gigantic proportions” when testifying before Congress. Scholarship on political radicalism and especially terrorism during what many scholars have termed “the Long Sixties” has largely focused on radical elements of the New Left such as the Weather Underground. This dissertation argues that, instead of how scholarship has traditionally treated it, terrorism during the time and in New York city was just as likely to emanate from the political right, and may have in fact manifested there first. This dissertation also makes the argument that terrorism and the response to terrorism – most notably by the NYPD and the Federal Bureau of Investigation (FBI) – coevolved during the period. The actions of terror actors prompted more aggressive investigations by authorities, and the actions of authorities drove terror actors further underground. Building on “intelligence” operations including undercover operatives and secret informants, authorities brought to bear many of the practices that would soon land them in legal trouble such as occurred during the U.S. Senate Church Committee investigation and the “Handschu” civil liberties case brought against the NYPD. And in response to these aggressive and often effective actions by authorities, groups like the Weather Underground in fact went underground. Ultimately, what this dissertation argues is that the history of terrorism in the United States is longer and more diverse than is commonly understood, and even more so than argued in scholarly history, and that the time and place of New York City during this period is uniquely important because of the diversity of the actors and the sheer volume of attacks illustrates how much more broadly accepted this form of political violence was than ever was before, or ever since

Latino Civic and Social Engagement

Special issue editors Bernardo Pohl, Viola Garcia and Traqina Emeka introduce the special edition of the Journal of Family Strengths

Search for Fission-Like Processes in the 200 MeV p+ 28-Si Reaction

This work was supported by the National Science Foundation Grant NSF PHY 81-14339 and by Indiana Universit

Two-dimensional protein crystallization via metal-ion coordination by naturally occurring surface histidines

A powerful and potentially general approach to the targeting and crystallization of proteins on lipid interfaces through coordination of surface histidine residues to lipid-chelated divalent metal ions is presented. This approach, which should be applicable to the crystallization of a wide range of naturally occurring or engineered proteins, is illustrated here by the crystallization of streptavidin on a monolayer of an iminodiacetate-Cu(II) lipid spread at the air-water interface. This method allows control of the protein orientation at interfaces, which is significant for the facile production of highly ordered protein arrays and for electron density mapping in structural analysis of two-dimensional crystals. Binding of native streptavidin to the iminodiacetate-Cu lipids occurs via His-87, located on the protein surface near the biotin binding pocket. The two-dimensional streptavidin crystals show a previously undescribed microscopic shape that differs from that of crystals formed beneath biotinylated lipids

A face recognition system for assistive robots

Assistive robots collaborating with people demand strong Human-Robot interaction capabilities. In this way, recognizing the person the robot has to interact with is paramount to provide a personalized service and reach a satisfactory end-user experience. To this end, face recognition: a non-intrusive, automatic mechanism of identification using biometric identifiers from an user's face, has gained relevance in the recent years, as the advances in machine learning and the creation of huge public datasets have considerably improved the state-of-the-art performance. In this work we study different open-source implementations of the typical components of state-of-the-art face recognition pipelines, including face detection, feature extraction and classification, and propose a recognition system integrating the most suitable methods for their utilization in assistant robots. Concretely, for face detection we have considered MTCNN, OpenCV's DNN, and OpenPose, while for feature extraction we have analyzed InsightFace and Facenet. We have made public an implementation of the proposed recognition framework, ready to be used by any robot running the Robot Operating System (ROS). The methods in the spotlight have been compared in terms of accuracy and performance in common benchmark datasets, namely FDDB and LFW, to aid the choice of the final system implementation, which has been tested in a real robotic platform.This work is supported by the Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech, the research projects WISER ([DPI2017-84827-R]),funded by the Spanish Government, and financed by European RegionalDevelopment’s funds (FEDER), and MoveCare ([ICT-26-2016b-GA-732158]), funded by the European H2020 program, and by a postdoc contract from the I-PPIT-UMA program financed by the University of Málaga

Effects of tunable excitation in carotenoids explained by the vibrational energy relaxation approach

V. B. acknowledges funding by the Leverhulme Trust Research Project Grant RPG-2015-337. J. H. and C. N. L. acknowledge funding by the Austrian Science Fund (FWF): START project Y 631-N27. D. A. acknowledges support by the Research Council of Lithuania (No MIP-090/2015). G. C. acknowledges support by the European Research Council Advanced Grant STRATUS (ERC-2011-AdG No. 291198). G. C. and J. H. acknowledge funding by Laserlab-Europe (EU-H2020 654148)

Total Mass and Charge Distributions in the p + 27-Al Reaction at 180 MeV

This work was supported by the National Science Foundation Grants NSF PHY 78-22774 A03, NSF PHY 81-14339, and by Indiana Universit