Communications Research Laboratory Research Articles

Integrating evidence-based communication principles into routinecancer care.

The global incidence of cancer and available cancer-directed therapy options is increasing rapidly, presenting patients and clinicians with more complex treatment decisions than ever before. Despite the dissemination of evidence-based communication training tools and programs, clinicians cite barriers to employing effective communication in cancer care (e.g., discomfort of sharing serious news, concern about resource constraints to meet stated needs). We present two composite cases with significant communication challenges to guide clinicians through an application of evidence-based approaches to achieve quality communication. Composite cases, communication skills blueprint, and visual conceptualization. High-stakes circumstances in each case are described, including end-of-life planning, advanced pediatric illness, strong emotions, and health inequities. Three overarching communication approaches are discussed: (1) content selection and delivery; (2) rapport development; and (3) empathic connection. The key takeaways following each case provide succinct summaries of challenges encountered and approaches used. A communication blueprint from the Memorial Sloan Kettering Cancer Center Communication Skills Training Program and Research Laboratory has been adapted and is comprised of strategies, skills, process tasks, andsample talking points. A visually concise tool - the Communication Blueprint Traffic Circle - illustrates these concepts and demonstrates the iterative, holistic, and agile considerations inherent to effective communication. Evidence-based communication is foundational to person-centeredness, associated with improved clinician and patient/caregiver outcomes, and can be integrated throughout routineoncology care. When used by clinicians, evidence-based communication can improve patient and caregiver experiences and assist in ensuring goal-concordant cancer care delivery.

Imprint of transient electron localization in using circularly-polarized laser pulse* *Project supported by the National Key Research and Development Program of China (Grant No. 2018YFB1801904), the National Natural Science Foundation of China (Grant No. 12075036), and the Open Research Fund of National Mobile Communications Research Laboratory, Southeast University (Grant No. 2019D14).

Photoelectron momentum distribution of hydrogen molecular ion in a circularly polarized laser pulse is calculated by solving the three-dimensional time-dependent Schrödinger equation (3D-TDSE). At the intermediate internuclear distance, an unusual multi-peak structure is observed in the angular distribution, which is proved to be a signature of the transient localization of the electron upon alternating nucleus. By tracing the time-dependent ionization rate and bound state populations, we provide a clear evidence that the transient electron localization still exists in circularly polarized pulse and the corresponding multiple ionization bursts are directly mapped onto observable angular distributions. In addition, we introduce an intuitive strong-field approximation model which incorporates laser-induced subcycle internal electron dynamics to isolate the effect of the Coulomb potential of the parent ions. In this way, the timing of each ionization burst can be directly read out from the angular distributions. Our results suggest that the ionization time serves as a sensitive tool encoding intramolecular electron dynamics and can be measured using attoclock technique.

Joint Interference Estimation and Detection in Uplink of Massive MIMO System

In this article, the joint detection in uplink are studied in Massive MIMO (Massive Multiple-input Multiple-output) system. This article will combine several precoding techniques such as ZF (Zero Force), MMSE (Minimum Mean Square Error), BD (Block Diagonalization) in interference estimation and propose a new structure for joint detection in uplink based on 5G simulation test platform of NCRL (National Mobile Communications Research Laboratory of SEU). Finally, this article will analysis feasibility of the new structure and give out simulation results.

From transaction to collaboration: scholarly communications design at UConn Library

The University of Connecticut (UConn) Library, in collaboration with the School of Fine Arts and the UConn Humanities Institute and with support from the Andrew W Mellon Foundation, is developing Greenhouse Studios (GS). GS is a scholarly communications research laboratory dedicated to using collaborative models and design principles in the creation of scholarly works. Scholarship laboratories that function as a combination of a scientific research lab and an art studio are a useful means of advancing the methods and outcomes of scholarly communications. We intend to examine whether flattening hierarchies through the GS model is a significant challenge for librarians who work within transactional models of interaction and are closely tied to faculty-driven service models of research support. Other participants typically thought of as supporting faculty are embedded as equal participants in the design process. We will apply qualitative methods to examine whether the GS design process facilitates development of new models of interaction among faculty, librarians, design technologists and other experts. Preliminary experience finds most participants embrace the collaborative model and are energized by the experience. Our assessment will focus on GS techniques as drivers for role and scholarly output changes, how these experiences might translate into changes in library culture or services, and on practical findings related to space, technology usage and administrative hurdles. This paper is the result of a presentation delivered at CNI (the Coalition for Networked Information) in early 2017 1 and encapsulates our thinking then and now (in early 2018) as we refine our assessment tools.

独立行政法人 通信総合研究所 けいはんな情報通信融合研究センター社会的インタラクショングループ

独立行政法人 通信総合研究所 けいはんな情報通信融合研究センター社会的インタラクショングループ

What Can Health Communication Science Offer for ACA Implementation? Five Evidence-Informed Strategies for Expanding Medicaid Enrollment

Implementing the Affordable Care Act (ACA) in 2014 will require effective enrollment and outreach efforts to previously uninsured individuals now eligible for coverage. From 1996 to 2013, the Health Communication Research Laboratory conducted more than 40 original studies with more than 30,000 participants to learn how to improve the reach to and effectiveness of health information for low-income and racial/ethnic minority populations. We synthesized the findings from this body of research and used them to inform current challenges in implementing the ACA. We found empirical support for 5 recommendations regarding partnerships, outreach, messages and messengers, life priorities of low-income individuals and families, and the information environment. We translated these into 12 action steps. Health communication science can inform the development and execution of strategies to increase the public's understanding of the ACA and to support the enrollment of eligible individuals into Medicaid or the Health Insurance Marketplace.

Guest Editorial

ETRI JournalVolume 34, Issue 6 p. 799-799 ArticleFree Access Guest Editorial Bong-Tae Kim, Bong-Tae Kim Senior Vice President Advanced Communications Research Laboratory, ETRISearch for more papers by this author Bong-Tae Kim, Bong-Tae Kim Senior Vice President Advanced Communications Research Laboratory, ETRISearch for more papers by this author First published: 01 December 2012 https://doi.org/10.4218/etrij.12.1812.0000AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume34, Issue6December 2012Pages 799-799 RelatedInformation

Characterization of the Ultra-Wideband Channel in Confined Environments with Diffracting Rough Surfaces

Accurate channel models are extremely important for the design of communications systems. Knowledge of the features of the channel provides communications system designers with the ability to predict the performance of the system for specific modulations, channel coding, and signal processing. This paper presents a statistical characterization of an Ultra-Wideband (UWB) propagation channel in an underground mine. Measurements were carried out in the 2---5 GHz frequency band. Various communication links were considered including both line-of-sight (LOS) and non-LOS (NLOS) scenarios. The measurement procedure allows us to characterize both the large-scale and the small-scale statistics of the channel. The aim here is to study in more details the statistical characteristics of the UWB propagation channel in an underground mine and to provide insight for future statistical channel modeling works. Channel characteristics examined include the distance and frequency dependency of path loss, shadowing fading statistics, and multipath temporal-domain parameter statistics such as the mean excess delay and the RMS delay spread. This work has been carried out by the underground communications research laboratory LRCS (The LRCS laboratory aims to develop research programs related to wireless telecommunications in underground mines. Research is conducted at its own facility as well as the CANMET experimental mine in Val-d'Or, Quebec, Canada), and the experimental mine CANMET (Canadian Center for Minerals and Energy Technology) in Val-d'or, Canada.

Recent Advances in Wireless Communications and Networking

The annual International Conference on Communications and Networking in China (CHINACOM) aims to provide a forum that brings together Chinese and international researchers and practitioners to showcase recent advances in communications networking research. CHINACOM 2008 is the third edition of this event, which was successfully held in Hangzhou, China, in August 2008. This special issue includes a collection of six outstanding research papers selected from CHINACOM 2008, which is a result of several stages of filtration and selection. First, out of the 822 submissions from 36 countries/regions in 5 continents, among which over 500 submissions were from mainland China, less than 270 papers, including some invited papers, were accepted for presentation, representing an acceptance rate of about 33%. Among the 270 papers, 15 papers have been invited to extend and enhance their work for further consideration for publication in this special issue and six of them have finally been included in the special issue. We would like to use this opportunity to appreciate all the reviewers who volunteered their time and professional expertise to help us reach the selection decisions. The papers included in this special issue cover a diversity of topics in wireless communications and networking. In the first paper, “BTAC: A Busy Tone Based Cooperative MAC Protocol for Wireless Local Area Networks”, Sayed et al. proposed and analyzed a busy tone based cooperative medium access control (MAC) protocol, called BTAC, for multi-rate wireless local area networks (WLANs) based on the concept of cooperative communications. The analytical and simulation results show that the BTAC protocol is simple, robust, and fully compatible with the IEEE 802.11b standard, and can achieve better throughput and delay performance than the standard distributed coordination function (DCF) protocol and the recently proposed CoopMAC protocol. In the second paper, “Achieving End-to-end Fairness in 802.11e Based Wireless Multi-Hop Mesh Networks without Coordination,” Li et al. studied the fairness issue in using 802.11 at the MAC layer and proposed the use of 802.11e’s TXOP mechanism to restore/perform fair resource allocation. The proposed TXOP based mechanism is implementable on standard hardware in a simple and fully decentralized way without a need for message passing. J. Zheng (*) National Mobile Communications Research Laboratory, Southeast University, Nanjing, Jiangsu, China e-mail: junzheng@seu.edu.cn

Comprehension of Affective Prosody in Veterans With Chronic Posttraumatic Stress Disorder

Posttraumatic stress disorder (PTSD) is one of the few psychiatric conditions in which a subjective decrease in emotional range serves as a diagnostic criterion. In order to investigate whether veterans with chronic PTSD also experienced objective limitations in emotional perception, the authors administered the Aprosodia Battery to a group of 11 veterans with chronic PTSD, nine subjects with right hemisphere damage, seven subjects with left hemisphere damage, and 12 comparison subjects. The patients with PTSD displayed significant deficiencies in the comprehension and discriminative components of affective speech, similar in severity and performance profile on the Aprosodia Battery to the individuals with focal right hemisphere damage due to ischemic infarction.

Omni-Wrist III - A new generation of pointing devices. I. Laser beam steering devices - mathematical modeling

Omni-Wrist III is a new sensor mount developed with U.S. Air Force funding that emulates the kinematics of a human wrist. Driven by two linear motors and computer controlled, it is capable of a full 180/spl deg/ hemisphere of pitch/yaw motion. A comprehensive laboratory testing of one of the few existing devices of this type, installed in the Laser Communications Research Laboratory at Binghamton University, has resulted in the establishment of a complete mathematical model relating pitch/yaw coordinates of the sensor mount to the motor encoder signals. This paper presents the development of the model that incorporates inverse and forward pose kinematics solutions as well as the dynamics of the novel gimbal-like pointing system.

Omni-Wrist III - A new generation of pointing devices. II. Gimbals systems - control

The Omni-Wrist III robotic manipulator, inspired in design by the kinematics of the human wrist, represents, with the full 180/spl deg/ hemisphere of singularity-free range, a very capable alternative to traditional gimbals systems. Research efforts at the Laser Communications Research Laboratory at Binghamton University have resulted in the establishment of an accurate mathematical model, which was utilized in the development of control systems presented in this paper. A state variable controller and two linear model following controllers are developed and evaluated. The third controller is designed to achieve full decoupling of the highly coupled system. The adaptation and disturbance rejection capabilities of the controllers are demonstrated through friction compensation.

Space weather in Japan

In Japan, Communications Research Laboratory engages in operational space environment information services as National Forecasting Center and Regional Warning Center of ISES. Data from local observations and data collected via internet from domestic and foreign institutes are used for the daily operational forecast. Fundamental research on space weather issues has been carried out at several institutes and universities, including STE Laboratory and NASDA. In this presentation, an overview of current space weather forecast operations and a system for information outreach in Japan will be presented. Current and future observation programs from ground-base and space will be also briefly reviewed.

Accuracy evaluation of optically pumped primary frequency standard CRL-O1

In cooperation with the Time and Frequency Group of the National Institute of Standards and Technology, the Communications Research Laboratory has developed an optically pumped primary frequency standard (PFS) which is named CRL-O1. The accuracy of CRL-O1 has been evaluated and reports have been sent to the Bureau International des Poids et Mesures. The results of the evaluations have been published in Circular T. We estimate the biases of the frequency shifts and the so-called type A and type B uncertainties. The combination of type A and type B uncertainties is about 7 × 10−15. The evaluated frequency of CRL-O1 is in good agreement with that of other PFSs.

Preliminary experiments on technologies for satellite orbital maintenance using Micro-LabSat 1

For maturation of space activities, not only developing and using space systems is important, but also performing maintenance on them in their orbital environment is necessary in order to use them efficiently. The Communications Research Laboratory (CRL) has been studying an orbital maintenance system (OMS), specifically an on-orbit satellite maintenance system. An important first step is the capability to autonomously recognize and rendezvous with a target satellite. The CRL developed a microprocessor multi-chip module to control the OMS, including its robotic system and image processing, and installed it on Micro-LabSat for a mission called Micro-OLIVe (MicroLabSat was developed by NASDA and launched in 2002 together with the environment observation technology satellite ADEOS-II). In this paper, we describe the OMS concept, our experimental system and results of the Micro-OLIVe experiments. These experiments aimed at using the microprocessor multi-chip module to control the OMS, its camera units that use conventional C-MOS digital still cameras and its software used for flexible image processing.

An algorithm for a near real-time data processing of GPS common-view observations

Near real-time transfer of GPS common-view data is no longer a problem, but near real-time data processing of the data still calls for study, because it is not yet achieved by the usual smoothing and filtering techniques. Based on the characteristics of the GPS common-view data, a Kalman filtering algorithm is designed for estimating the time difference between two sites, while greatly reducing the observational noise. The algorithm is applied to the time difference between the National Time Service Center (NTSC) of China and the Communications Research Laboratory (CRL) of Japan (Over 2000 km apart), and to that between the CRL and the Korean Research Institute of Standards and Sciences (KRIS) (over 1000 km apart). The root mean square errors of the results obtained by the Kalman filter relative to those obtained from the Circular T of BIPM are less than 2.9 ns and 2.6 ns, in the two cases. Further, it is pointed out that, when multi-site data within a common-view network are available we can further improve the accuracy of the time comparisons by indirect observation adjustment. This statement was justified by application to the data from all three stations, i.e. NTSC, CRL, and KRIS.

Research on Mobile Communications in Microwave and Millimeter-WaveFrequency Ranges at CRL

Research activities at the Communications Research Laboratory (CRL), IAI, Japan, into new-generation mobile communications are described. These activities are categorized into three areas: (1) cellular transmission in the microwave frequency region, (2) street-cell and hotspot transmission in the millimeter-wave frequency region, and (3) software defined radio (SDR) based mobile terminals. Prototypes have been developed and field-tested in each area. The prototypes and the field trial results are described, and a perspective on new-generation mobile communications is presented.

NOTES AND CORRESPONDENCE Simulation-Based Error Analysis of Doppler Velocity Measured by a Spaceborne Cloud-Profiling Radar in the W-band

The Communications Research Laboratory is studying spaceborne cloud-profiling radar with Doppler measurement capability. This study uses pulse-pair operation, based on the polarization-diversity technique, to measure Doppler velocity. The error in the measured Doppler velocity was analyzed using simulation technique as a parameter of pulse-pair intervals at several signal to noise ratios. The optimal pulse-pair interval (TS) is investigated in this paper because it is a key parameter in determining the dynamic range of the Doppler velocity and its accuracy. Moreover, it was found that the terminal fall velocity of cloud drops in still air could be measured. Two TS’s (10 μsec and 60 msec) were used as the optimal values. The dynamic range of Doppler velocity for TS = 60 msec is 13.3 m/sec. If this dynamic range for Doppler velocity is enough to avoid the aliasing of Doppler velocity, TS = 60 msec will be suitable for spaceborne cloud-profiling radar because it effectively reduces the error of mean Doppler velocity (<υ>). If the accuracy of the beam-alignment of the antenna is not within 0.1 degrees as a general requirement, a wider dynamic range of Doppler velocity is required to avoid the aliasing of Doppler velocity. It was found that TS of 10 msec gives a wide dynamic range of Doppler velocity. It is thus expected that use of TS = 10 μsec is an optional way for spaceborne cloud-profiling radar, though it does not give good accuracy. Selecting TS ranging from 10 to 60 μsec is also a possible way of optimizing the expansion of the dynamic range of Doppler velocity and reducing the error of <υ>.

C306 大気風観測のためのドップラーライダー

The multi-channel incoherent doppler lidar is currently developed under Communications Research Laboratory (CRL). This system is designed for the visualization of the stratospheric winds in clear nights. It consists of a stabilized Nd:YAG(SHG) laser, a 75cm collection mirror, Fabry-Perot interferometer and multi-ring photon detector. The preliminary observation was held at Koganei, Tokyo, and the result was compatible with the radiosonde data at Tateno/Hamamatsu between altitude 12km and 24km.

A Short History of the TRMM Precipitation Radar

The Tropical Rainfall Measuring Mission (TRMM) satellite carried aboard the world’s first spaceborne precipitation radar (PR). This paper describes a short history of the TRMM PR. It describes the Communications Research Laboratory’s (CRL’s) airborne dual-frequency rain radar/radiometer system, some results of the airborne experiments, and considerations of system design and system parameters of the PR. It also describes data processing and analysis algorithms for the PR, and examples of PR rain measurements.