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Biernacki P. Software Correction of Speed Measurement Determined by Phone GNSS Modules in Applications for Runners. Sensors (Basel) 2023; 23:2678. [PMID: 36904882 PMCID: PMC10007219 DOI: 10.3390/s23052678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/05/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
This paper presents the results of a study on software correction of speed measurements taken by GNSS receivers installed in cell phones and sports watches. Digital low-pass filters were used to compensate for fluctuations in measured speed and distance. Real data obtained from popular running applications for cell phones and smartwatches were used for simulations. Various measurement situations were analyzed, such as running at a constant speed or interval running. Taking a very high accuracy GNSS receiver as the reference equipment, the solution proposed in the article reduces the measurement error of the traveled distance by 70%. In the case of measuring speed in interval running, the error could be reduced by up to 80%. The low-cost implementation allows simple GNSS receivers to approach the quality of distance and speed estimation of very precise and expensive solutions.
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Affiliation(s)
- Pawel Biernacki
- Department of Acoustics, Multimedia and Signal Processing Faculty of Electronics, Fotonics and Microsystems Wroclaw University of Science and Technology, 50-350 Wroclaw, Poland
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Miller G, Biernacki P, Kemeny N, Gonen M, Downey R, Jarnagin WR, D’Angelica M, Fong Y, Blumgart LH, DeMatteo RP. Outcomes after resection of synchronous or metachronous hepatic and pulmonary colorectal metastases. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.4059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4059 Background: Surgical resection of isolated hepatic or pulmonary colorectal metastases prolongs survival in selected patients. However, the benefits of resection and appropriate selection criteria in patients who develop both hepatic and pulmonary metastases are ill-defined. Methods: Data were prospectively collected from 131 patients with colorectal cancer who underwent resection of both hepatic and pulmonary metastases over a 20-year period. Median follow-up was 6.6 years from the time of resection of the primary tumor. Patient, treatment, and outcome variables were analyzed using log-rank, Cox regression, and Kaplan-Meier methods. Results: The site of first metastasis was the liver in 65% of patients, lung in 11%, and both simultaneously in 24%. Multiple hepatic metastases were present in 51% of patients and multiple pulmonary metastases were found in 48%. Hepatic lobectomy or trisegmentectomy was required in 61% of patients while most lung metastases (80%) were treated with wedge excisions. Median survival from resection of the primary disease, first site of metastasis, and second site of metastasis was 6.9, 5.0, and 3.3 years, respectively. After resection of disease at the second site of metastasis, the 1, 3, 5, and 10 year disease-specific survival rates were 91, 55, 31 and 19%, respectively. An analysis of prognostic factors revealed that survival was significantly longer when the disease-free interval between the development of the first and second sites of metastases exceeded one year, in patients with a single liver metastasis, and in patients younger than 55 years. Conclusions: Surgical resection of both hepatic and pulmonary colorectal metastases is associated with prolonged survival in selected patients. Patients with a longer disease free interval between metastases and those with single liver lesions had the best outcomes. [Table: see text] No significant financial relationships to disclose.
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Affiliation(s)
- G. Miller
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - P. Biernacki
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - N. Kemeny
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - M. Gonen
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - R. Downey
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | | | - M. D’Angelica
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - Y. Fong
- Memorial Sloan-Kettering Cancer Center, New York, NY
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Stall R, Biernacki P. Spontaneous remission from the problematic use of substances: an inductive model derived from a comparative analysis of the alcohol, opiate, tobacco, and food/obesity literatures. Int J Addict 1986; 21:1-23. [PMID: 3710636 DOI: 10.3109/10826088609063434] [Citation(s) in RCA: 84] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Despite obvious theoretical and treatment implications, the study of how individuals end the "compulsive" use of substances without formal treatment ("spontaneous remission") remains a relatively neglected topic. This paper reviews the literature germane to spontaneous remission from four substances (opiates, alcohol, food/obesity, and tobacco) selected for their widely variant meanings within the mainstream North American culture. Common processes important to spontaneous remission from these four substances are identified and form the basis of an inductively derived model of spontaneous remission behavior. This model, relevant to interactionist theory, is offered for further, empirical testing.
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Biernacki P. Molecular mass distribution of polyenanthoamide obtained by anionic polymerization of enantholactam in solvent. Eur Polym J 1985. [DOI: 10.1016/0014-3057(85)90159-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Biernacki P, Włodarczyk M. A study of the chemical and physical structure of polycaproamide obtained in anionic polymerization of caprolactam in solvent. Eur Polym J 1984. [DOI: 10.1016/0014-3057(84)90108-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Biernacki P, Chrzczonowicz S, Wlodarczyk M. Molecular weight distribution of polycaproamide obtained by anionic polymerization of caprolactam in solvent. Eur Polym J 1971. [DOI: 10.1016/0014-3057(71)90101-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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