Use of GPS-Determined Attitude in Combination with Conventional Attitude Sensors

1994 ◽  
Vol 47 (3) ◽  
pp. 323-331 ◽  
Author(s):  
Therese Matheisen ◽  
Ole Ørpen
Keyword(s):  
Short Term ◽  
Combined System ◽  
The Past ◽  
Pitch Information ◽  
Update Rate ◽  
Gyro Compass ◽  
Better Than ◽  
Echo Sounder

Use of multi antenna GPS equipment for determination of a vessel's attitude holds some promise for the development of accurate and inexpensive attitude systems. An application for such systems might be to provide very accurate roll information for multibeam echo sounders.The present state-of-the-art GPS attitude systems cannot meet the required accuracy and update rate for such applications. GEOTEAM A/S has therefore developed a PC-based system which combines GPS-based attitude with roll and pitch information from a Vertical Reference Unit (VRU) and heading from a gyro compass.In such a combined system, the long-term high accuracy of a GPS-based attitude system is combined with the short-term accuracy and fast update rate of conventional VRUS and gyro compasses in order to achieve a resulting performance that is better than any of the systems. In effect, the GPS attitude is used to calibrate the VRU and the gyro compass in real time.During the past year extensive tests have been performed with a system using a Trimble VECTOR II GPS attitude system with a 1 metre baseline between the antennas, both on a van (with an inertial navigation system as reference) and on a vessel. During November and December 1993 further tests were made with an Ashtech 3DF attitude system with longer baselines (7·5 m). These tests were made on a vessel where the combined GPS/VRU attitude was fed into a multibeam echo sounder. These tests were performed in cooperation with Simrad Subsea A/S, the multibeam echo sounder EM 1000 manufacturer.

scholarly journals Radiocarbon and 11-Year Variations of Cosmic Rays

Radiocarbon ◽  
1993 ◽  
Vol 35 (3) ◽  
pp. 347-350 ◽  
Author(s):  
A. A. Burchuladze ◽  
S. V. Pagava ◽  
G. I. Togonidze ◽  
M. V. Avtandilashvili
Keyword(s):  
Cosmic Rays ◽  
Cosmic Ray ◽  
Complex Problem ◽  
Short Term ◽  
The Past ◽  
Terrestrial Origin ◽  
Astrophysical Phenomena

B. P. Konstantinov and G. E. Kocharov (1965, 1967) addressed the complex problem of astrophysical phenomena and radiocarbon. Currently available data show that the determination of cosmogenic 14C in accurately dated samples of terrestrial and atmospheric origin is one of the most reliable and promising methods for studying cosmic-ray variations in the past. 14C dating samples of terrestrial origin has helped solve the problem of long-term (100 yr or more) 14C variations and, accordingly, of cosmic-ray variations in the past. Short-term (ca. 11 yr or less) variations are still under investigation (Alexeyev et al. 1971; Damon, Long and Wallick 1973).

Impact of FII’s and FDI’s on Indian Stock Market

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Dr. Kamlesh Kumar Shukla
Keyword(s):  
Stock Market ◽  
Financial Markets ◽  
Global Economy ◽  
Short Term ◽  
Earnings Growth ◽  
The Past ◽  
Bull Market ◽  
Indian Stock Market

FIIs are companies registered outside India. In the past four years there has been more than $41 trillion worth of FII funds invested in India. This has been one of the major reasons on the bull market witnessing unprecedented growth with the BSE Sensex rising 221% in absolute terms in this span. The present downfall of the market too is influenced as these FIIs are taking out some of their invested money. Though there is a lot of value in this market and fundamentally there is a lot of upside in it. For long-term value investors, there’s little because for worry but short term traders are adversely getting affected by the role of FIIs are playing at the present. Investors should not panic and should remain invested in sectors where underlying earnings growth has little to do with financial markets or global economy.

scholarly journals A Novel LSTM Model with Interaction Dual Attention for Radar Echo Extrapolation

2021 ◽  
Vol 13 (2) ◽  
pp. 164
Author(s):  
Chuyao Luo ◽  
Xutao Li ◽  
Yongliang Wen ◽  
Yunming Ye ◽  
Xiaofeng Zhang
Keyword(s):  
Short Term Memory ◽  
Weather Forecast ◽  
Vital Role ◽  
Data Sets ◽  
Short Term ◽  
Learning Techniques ◽  
Radar Echo ◽  
Hidden States ◽  
Better Than

The task of precipitation nowcasting is significant in the operational weather forecast. The radar echo map extrapolation plays a vital role in this task. Recently, deep learning techniques such as Convolutional Recurrent Neural Network (ConvRNN) models have been designed to solve the task. These models, albeit performing much better than conventional optical flow based approaches, suffer from a common problem of underestimating the high echo value parts. The drawback is fatal to precipitation nowcasting, as the parts often lead to heavy rains that may cause natural disasters. In this paper, we propose a novel interaction dual attention long short-term memory (IDA-LSTM) model to address the drawback. In the method, an interaction framework is developed for the ConvRNN unit to fully exploit the short-term context information by constructing a serial of coupled convolutions on the input and hidden states. Moreover, a dual attention mechanism on channels and positions is developed to recall the forgotten information in the long term. Comprehensive experiments have been conducted on CIKM AnalytiCup 2017 data sets, and the results show the effectiveness of the IDA-LSTM in addressing the underestimation drawback. The extrapolation performance of IDA-LSTM is superior to that of the state-of-the-art methods.

The Relationship between Goal Proximity and Specificity in Bowling: A Field Experiment

1990 ◽  
Vol 4 (2) ◽  
pp. 145-154 ◽  
Author(s):  
Steven H. Frierman ◽  
Robert S. Weinberg ◽  
Allen Jackson
Keyword(s):  
Goal Setting ◽  
Repeated Measures ◽  
Questionnaire Data ◽  
Short Term ◽  
Level Of Confidence ◽  
Goal Condition ◽  
Main Effect ◽  
The Relationship ◽  
Better Than

The purpose of this investigation was twofold: to determine if individuals who were assigned specific, difficult goals perform better than those assigned “do your best” goals, and to examine the importance of goal proximity (longterm vs. short-term) on bowling performance. Subjects were 72 students enrolled in two beginning bowling courses at a 4-year university. They were matched according to baseline bowling averages and then randomly assigned to one of four goal-setting conditions. A 4 × 5 (Goal Condition × Trials) ANOVA with repeated measures on the last factor revealed a significant goal condition main effect, with the long-term goal group improving more than the do-your-best group. No other performance comparisons reached significance. Questionnaire data revealed that subjects in all three numerical goal conditions rated their level of confidence significantly higher than the do-your-best goal group in Week 1, but the long-term goal group displayed a significantly higher level of confidence than the other three goal groups in Week 4. All other questions indicated that all groups tried hard and were committed to and accepted their goals.

What money can’t buy: an argument against paying people to get vaccinated

2021 ◽  
pp. medethics-2021-107235
Author(s):  
Nancy S Jecker
Keyword(s):  
Best Practices ◽  
Economic Conditions ◽  
Vaccine Hesitancy ◽  
Short Term ◽  
Healthy Communities ◽  
Good Citizenship ◽  
Mutant Strains ◽  
The Cost ◽  
Better Than

This paper considers the proposal to pay people to get vaccinated against the SARS-CoV-2 virus. The first section introduces arguments against the proposal, including less intrusive alternatives, unequal effects on populations and economic conditions that render payment more difficult to refuse. The second section considers arguments favouring payment, including arguments appealing to health equity, consistency, being worth the cost, respect for autonomy, good citizenship, the ends justifying the means and the threat of mutant strains. The third section spotlights long-term and short-term best practices that can build trust and reduce ‘vaccine hesitancy’ better than payment. The paper concludes that people who, for a variety of reasons, are reluctant to vaccinate should be treated like adults, not children. Despite the urgency of getting shots into arms, we should set our sights on the long-term goals of strong relationships and healthy communities.

Meditation for adults with non-specific low back pain: a systematic review and meta-analysis

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Larissa O. Soares ◽  
Giovanni E. Ferreira ◽  
Leonardo O. P. Costa ◽  
Leandro C. Nogueira ◽  
Ney Meziat-Filho ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Usual Care ◽  
Pain Intensity ◽  
Cochrane Library ◽  
Low Back ◽  
Short Term ◽  
Minimal Intervention ◽  
Better Than

Abstract Objectives We aim to determine the effectiveness of meditation for adults with non-specific low back pain. Methods We searched PubMed, EMBASE, PEDro, Scopus, Web of Science, Cochrane Library, and PsycINFO databases for randomized controlled trials that investigated the effectiveness of meditation in adults with non-specific low back pain. Two reviewers rated risk of bias using the PEDro scale and the certainty of the evidence using the GRADE approach. Primary outcomes were pain intensity and disability. Results We included eight trials with a total of 1,234 participants. Moderate-certainty evidence shows that meditation is better than usual care for disability at short-term (SMD = −0.22; 95% CI = −0.42 to −0.02). We also found that meditation is better than usual care for pain intensity at long-term (SMD = −0.28; 95% CI = −0.54 to −0.02). There is no significant difference for pain intensity between meditation and minimal intervention or usual care at short and intermediate-term. We did not find differences between meditation and minimal intervention for disability at intermediate-term or usual care in any follow-up period. Conclusions We found small effect sizes and moderate-certainty evidence that meditation is slightly better than minimal intervention in the short-term for disability. Low-certainty of evidence suggests that meditation is slightly better than usual care for pain in the long-term. Meditation appears to be safe with most trials reporting no serious adverse events.

Afterword

2021 ◽  
pp. 244-248
Author(s):  
Michael J. Rosenfeld
Keyword(s):  
Social Change ◽  
Gay Rights ◽  
Marriage Equality ◽  
Short Term ◽  
The Past ◽  
The Many ◽  
The U.S ◽  
The Way

Gay rights and marriage equality have advanced so far in the U.S. in the past decade that it would be all too easy to assume that the struggle is over. The opponents of gay rights, however, remain powerful. Readers can take inspiration from how dramatically attitudes toward gay rights have liberalized in the past two decades and how transformative the liberalization of attitudes has been. We live in a world where political lies often seem to have the upper hand. It is worth remembering that despite the many short term advantages that lies can yield in politics, the truth has some long term advantages as well. The way the marriage equality movement prevailed should be a lesson to anyone who wants to make progressive social change.

Are Biopharmaceutical Budget Caps Good Public Policy?

2016 ◽  
Vol 13 (1) ◽  
Author(s):  
Dana P. Goldman ◽  
Darius N. Lakdawalla ◽  
James R. Baumgardner ◽  
Mark T. Linthicum
Keyword(s):  
Cost Savings ◽  
Healthcare Spending ◽  
Short Term ◽  
The Past ◽  
Long Run ◽  
The Status ◽  
Pharmaceutical Spending ◽  
Health Returns ◽  
New Research

AbstractMedical innovation has generated significant gains in health over the past decades, but these advances have been accompanied by rapid growth in healthcare spending. Faced with a growing number of high-cost but high-impact innovations, some have argued to constrain prices for new therapies – especially through global caps on pharmaceutical spending and limits on prices for individual drugs. We show that applying this threshold to past innovations would have limited access to many highly valuable drugs such as statins and anti-retrovirals. We also argue that budget caps violate several important principles of health policy. First, budget caps treat healthcare spending as a consumption good, like going to a movie or buying a meal. However, healthcare spending should be viewed as an investment, whose benefits accrue over many years – much like spending on education. Second, budgetary cost is a poor indicator of value, thereby distorting coverage decisions. Third, affordability arguments often use a short-term horizon, thereby missing that long-term health is society’s ultimate goal. Fourth, assessments of benefit should incorporate not just the immediate clinical benefit to patients, but also long-term health improvements, cost savings, and increased productivity. Fifth, global budget caps arbitrarily anchor spending on the status quo, thereby setting too stringent a threshold for socially-desirable innovation. In sum, a solitary focus on short-term costs can be detrimental to population health in the long-run. When medical treatment decisions are properly viewed as investments, budget caps are not the answer; rather, we need to find mechanisms to encourage spending decisions based on long-term value. Only then can we generate health returns to societal investments, while also encouraging the new research and development necessary to extend the gains of recent decades.

Afghanistan-US Relations

2019 ◽  
Author(s):  
Paul D. Miller
Keyword(s):  
Strategic Partnership ◽  
Terrorist Attacks ◽  
Short Term ◽  
Global Response ◽  
The Past ◽  
Thrust Front ◽  
Past Half Century ◽  
Partnership Agreement ◽  
Past Half

Afghanistan has twice been thrust front and center of US national security concerns in the past half-century: first, during the Soviet-Afghan War, when Afghanistan served as a proxy for American efforts to combat Soviet influence; and second, as the frontline state and host for America’s global response to al-Qaida’s terrorist attacks of 2001. In both instances, American involvement swung from intensive investment and engagement to withdrawal and neglect. In both cases, American involvement reflected US concerns more than Afghan realities. And both episodes resulted in short-term successes for American security with long-term consequences for Afghanistan and its people. The signing of a strategic partnership agreement between the two countries in 2012 and a bilateral security agreement in 2013 created the possibility of a steadier and more forward-looking relationship—albeit one that the American and Afghan people may be less inclined to pursue as America’s longest war continues to grind on.

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