Last data update: May 06, 2024. (Total: 46732 publications since 2009)
Records 1-15 (of 15 Records) |
Query Trace: Rowland JH[original query] |
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Evaluation of detection and response times of fire sensors using an atmospheric monitoring system
Rowland JH 3rd , Litton CD , Thomas RA . Trans Soc Min Metall Explor Inc 2016 340 (1) 104-112 Atmospheric monitoring systems (AMS) are required when using air from conveyor belt entries to ventilate working sections in U.S. underground coal mines. AMS technology has the potential to increase fire safety mine-wide, but research is needed to determine the detection and response times for fires of a variety of combustible materials. To evaluate the potential of an AMS for fire detection in other areas of a coal mine, a series of full-scale fire experiments were conducted to determine detection and response times from fires of different combustible materials that are found in U.S. underground coal mines, including high- and low-volatility coals, conveyor belts, brattice materials, different types of wood, diesel fuel, and a foam sealant. These experiments were conducted in the Safety Research Coal Mine (SRCM) of the U.S. National Institute for Occupational Safety and Health (NIOSH) located in Pittsburgh, PA, using a commercially available AMS that is typical of current technology. The results showed that through proper selection of sensors and their locations, a mine-wide AMS can provide sufficient early fire warning times and improve the health and safety of miners. |
Evaluation of post-blast re-entry times based on gas monitoring of return air
Bahrami D , Yuan L , Rowland JH , Zhou L , Thomas R . Min Metall Explor 2019 36 (3) 513-521 Blasting is the main method of production in many non-coal underground mining operations and produces multiple toxic gases as a result. The Mine Safety and Health Administration (MSHA) requires mine operators to measure the level of toxic gases in mines as frequently as necessary to ensure they are below regulatory safety limits. The current practice uses portable gas monitors to check the concentrations of toxic gases after a fixed post-blast time. This paper studies the application of a gas monitoring system in the return entry of a limestone mine to determine a safe re-entry time. The National Institute for Occupational Safety and Health (NIOSH) conducted such a monitoring program in a limestone mine from September 2016 through May 2018. NIOSH/PMRD (Pittsburgh Mining Research Division) is endeavoring to develop workplace solutions to improve detection of and reduce the risk of hazardous conditions. This study showed that the use of gas monitoring in the return air can be a useful tool at the mine operator's disposal to detect and reduce the risk of hazardous conditions and also to reliably estimate the re-entry time. |
Evaluation of different carbon monoxide sensors for battery charging stations
Rowland JH , Yuan L , Thomas RA , Zhou L . Min Metall Explor 2019 36 (2) 245-255 Hydrogen (H2) gas released during battery charging can result in cross-interference for carbon monoxide (CO) sensors used for early fire detection and compromise the integrity of the mine atmospheric monitoring system (AMS). In this study, a series of laboratory-scale and full-scale experiments were conducted to evaluate the responses of different CO sensors to H2 gas. In the laboratory-scale experiments, constant H2concentrations in the airflow, from 100 to 500 ppm, pass through sensors. While in the full-scale experiments, increasing H2concentrations generated as a byproduct from charging the batteries at the battery charging station rise to the sensors under different ventilation scenarios. The H2 concentrations at the CO sensor location were measured using H2 sensors and were correlated with the CO sensor response. The effects of ventilation and sensor location on the CO sensors responses were also analyzed. The results of this study can help mining companies to select appropriate CO sensors and improve the deployment of these sensors to ensure the safeguard of underground miners. |
Long-term survivorship care after cancer treatment - summary of a 2017 National Cancer Policy Forum Workshop
Kline RM , Arora NK , Bradley CJ , Brauer ER , Graves DL , Lunsford NB , McCabe MS , Nasso SF , Nekhlyudov L , Rowland JH , Schear RM , Ganz PA . J Natl Cancer Inst 2018 110 (12) 1300-1310 The National Cancer Policy Forum of the National Academies of Sciences, Engineering and Medicine sponsored a workshop on July 24 and 25, 2017 on Long-Term Survivorship after Cancer Treatment. The workshop brought together diverse stakeholders (patients, advocates, academicians, clinicians, research funders, and policymakers) to review progress and ongoing challenges since the Institute of Medicine (IOM)'s seminal report on the subject of adult cancer survivors published in 2006. This commentary profiles the content of the meeting sessions and concludes with recommendations that stem from the workshop discussions. Although there has been progress over the past decade, many of the recommendations from the 2006 report have not been fully implemented. Obstacles related to the routine delivery of standardized physical and psychosocial care services to cancer survivors are substantial, with important gaps in care for patients and caregivers. Innovative care models for cancer survivors have emerged, and changes in accreditation requirements such as the Commission on Cancer's (CoC) requirement for survivorship care planning have put cancer survivorship on the radar. The Center for Medicare & Medicaid Innovation's Oncology Care Model (OCM), which requires psychosocial services and the creation of survivorship care plans for its beneficiary participants, has placed increased emphasis on this service. The OCM, in conjunction with the CoC requirement, is encouraging electronic health record vendors to incorporate survivorship care planning functionality into updated versions of their products. As new models of care emerge, coordination and communication among survivors and their clinicians will be required to implement patient- and community-centered strategies. |
Numerical and experimental investigation of carbon monoxide spread in underground mine fires
Zhou L , Yuan L , Bahrami D , Thomas RA , Rowland JH . J Fire Sci 2018 36 (5) 406-418 The primary danger with underground mine fires is carbon monoxide poisoning. A good knowledge of smoke and carbon monoxide movement in an underground mine during a fire is of importance for the design of ventilation systems, emergency response, and miners escape and rescue. Mine fire simulation software packages have been widely used to predict carbon monoxide concentration and its spread in a mine for effective mine fire emergency planning. However, they are not highly recommended to be used to forecast the actual carbon monoxide concentration due to lack of validation studies. In this article, MFIRE, a mine fire simulation software based on ventilation networks, was evaluated for its carbon monoxide spread prediction capabilities using experimental results from large-scale diesel fuel and conveyor belt fire tests conducted in the Safety Research Coal Mine at The National Institute for Occupational Safety and Health. The comparison between the simulation and test results of carbon monoxide concentration shows good agreement and indicates that MFIRE is able to predict the carbon monoxide spread in underground mine fires with confidence. The Author(s) 2018. |
Early fire detection for underground diesel fuel storage areas
Yuan L , Thomas RA , Rowland JH , Zhou L . Process Saf Environ Prot 2018 119 69-74 With the increased use of mobile diesel-powered equipment in underground mines, the fire risk posed by underground diesel fuel storage areas is a concern. To reduce the risk associated with the storage and transfer of large quantities of diesel fuel in permanent underground mine storage areas, an experimental study was conducted to investigate the responses of different sensors for early detection of diesel fuel fires in a storage area. Fire sensors tested in this study were four carbon monoxide (CO) sensors, two smoke sensors, and one flame sensor. A series of fire tests were conducted in the NIOSH Safety Research Coal Mine, Bruceton, PA, using various fire sizes at different ventilation airflow velocities and fire locations. Response times for different sensors were analyzed, and the results suggest that the flame sensor and smoke sensors resulted in shorter response times in most tests compared to the CO sensors. Based on the test results, the appropriate sensor locations for early fire detection in a diesel fuel storage area were identified. The results of this study can help mining companies to select appropriate fire sensors for underground diesel fuel storage areas and improve the deployment of these sensors to ensure the safety of underground miners. |
A survey of atmospheric monitoring systems in U.S. underground coal mines
Rowland JH III , Harteis SP , Yuan L . Min Eng 2018 70 (2) 37-40 In 1995 and 2003, the U.S. Mine Safety and Health Administration (MSHA) conducted surveys to determine the number of atmospheric monitoring systems (AMS) that were being used in underground coal mines in the United States. The survey reports gave data for the different AMS manufacturers, the different types of equipment monitored, and the different types of gas sensors and their locations. Since the last survey in 2003, MSHA has changed the regulation requirements for early fire detection along belt haulage entries. As of Dec. 31, 2009, point-type heat sensors are prohibited for use for an early fire detection system. Instead, carbon monoxide (CO) sensors are now required. This report presents results from a new survey and examines how the regulation changes have had an impact on the use of CO sensors in underground coal mines in the United States. The locations and parameters monitored by AMS and CO systems are also discussed. |
An action plan for translating cancer survivorship research into care.
Alfano CM , Smith T , de Moor JS , Glasgow RE , Khoury MJ , Hawkins NA , Stein KD , Rechis R , Parry C , Leach CR , Padgett L , Rowland JH . J Natl Cancer Inst 2014 106 (11) To meet the complex needs of a growing number of cancer survivors, it is essential to accelerate the translation of survivorship research into evidence-based interventions and, as appropriate, recommendations for care that may be implemented in a wide variety of settings. Current progress in translating research into care is stymied, with results of many studies un- or underutilized. To better understand this problem and identify strategies to encourage the translation of survivorship research findings into practice, four agencies (American Cancer Society, Centers for Disease Control and Prevention, LIVE STRONG: Foundation, National Cancer Institute) hosted a meeting in June, 2012, titled: "Biennial Cancer Survivorship Research Conference: Translating Science to Care." Meeting participants concluded that accelerating science into care will require a coordinated, collaborative effort by individuals from diverse settings, including researchers and clinicians, survivors and families, public health professionals, and policy makers. This commentary describes an approach stemming from that meeting to facilitate translating research into care by changing the process of conducting research-improving communication, collaboration, evaluation, and feedback through true and ongoing partnerships. We apply the T0-T4 translational process model to survivorship research and provide illustrations of its use. The resultant framework is intended to orient stakeholders to the role of their work in the translational process and facilitate the transdisciplinary collaboration needed to translate basic discoveries into best practices regarding clinical care, self-care/management, and community programs for cancer survivors. Finally, we discuss barriers to implementing translational survivorship science identified at the meeting, along with future directions to accelerate this process. |
Numerical and experimental study on flame spread over conveyor belts in a large-scale tunnel
Yuan L , Mainiero RJ , Rowland JH , Thomas RA , Smith AC . J Loss Prev Process Ind 2014 30 55-62 Conveyor belt fires in an underground mine pose a serious life threat to the miners. This paper presents numerical and experimental results characterizing a conveyor belt fire in a large-scale tunnel. Acomputational fluid dynamics (CFD) model was developed to simulate the flame spread over the conveyor belt in a mine entry. Thermogravimetric analysis (TGA) tests were conducted for the conveyor belt and results were used to estimate the kinetic properties for modeling the pyrolysis process of the conveyor belt burning. The CFD model was calibrated using results from the large-scale conveyor belt fire experiments. The comparison between simulation and test results shows that the CFD model is able to capture the major features of the flame spread over the conveyor belt. The predicted maximum heat release rate, and maximum smoke temperature are in good agreement with the large-scale tunnel fire test results. The calibrated CFD model can be used to predict the flame spread over a conveyor belt in a mine entry under different physical conditions and ventilation parameters to aid in the design of improved fire detection and suppression systems, mine rescue, and mine emergency planning. |
Changes among US cancer survivors: comparing demographic, diagnostic, and health care findings from the 1992 and 2010 National Health Interview Surveys
Buchanan ND , King JB , Rodriguez JL , White A , Trivers KF , Forsythe LP , Kent EE , Rowland JH , Sabatino SA . ISRN Oncol 2013 2013 238017 BACKGROUND: Differences in healthcare and cancer treatment for cancer survivors in the United States (US) have not been routinely examined in nationally representative samples or studied before and after important Institute of Medicine (IOM) recommendations calling for higher quality care provision and attention to comprehensive cancer care for cancer survivors. METHODS: To assess differences between survivor characteristics in 1992 and 2010, we conducted descriptive analyses of 1992 and 2010 National Health Interview Survey (NHIS) data. Our study sample consisted of 1018 self-reported cancer survivors from the 1992 NHIS and 1718 self-reported cancer survivors from the 2010 NHIS who completed the Cancer Control (CCS) and Cancer Epidemiology (CES) Supplements. RESULTS: The prevalence of reported survivors increased from 1992 to 2010 (4.2% versus 6.3%). From 1992 to 2010, there was an increase in long-term cancer survivors and a drop in multiple malignancies, and surgery remained the most widely used treatment. Significantly fewer survivors (<10 years after diagnosis) were denied insurance coverage. Survivors continue to report low participation in counseling or support groups. CONCLUSIONS: As the prevalence of cancer survivors continues to grow, monitoring differences in survivor characteristics can be useful in evaluating the effects of policy recommendations and the quality of clinical care. |
Receipt of psychosocial care among cancer survivors in the United States
Forsythe LP , Kent EE , Weaver KE , Buchanan N , Hawkins NA , Rodriguez JL , Ryerson AB , Rowland JH . J Clin Oncol 2013 31 (16) 1961-9 PURPOSE: Given the importance of psychosocial care for cancer survivors, this study used population-based data to characterize survivors who reported a discussion with health care provider(s) about the psychosocial effects of cancer and who reported using professional counseling or support groups (PCSG) and tested associations between receipt of psychosocial care and satisfaction with care. PATIENTS AND METHODS: We examined survivors of adult cancers from the 2010 National Health Interview Survey (N = 1,777). Multivariable logistic regression models examined factors associated with receipt of and satisfaction with psychosocial care. RESULTS: Most survivors (55.1%) reported neither provider discussions nor use of PCSG; 31.4% reported provider discussion only, 4.4% reported use of PCSG only, and 8.9% reported both. Non-Hispanic blacks (v non-Hispanic whites), married survivors, survivors of breast cancer (v prostate or less prevalent cancers), those treated with chemotherapy, and survivors reporting past research study/clinical trial participation were more likely to report provider discussion(s) (P < .01). Hispanics (v non-Hispanic whites), survivors age 40 to 49 years (v ≤ 39 years), survivors of breast cancer (v melanoma or less prevalent cancers), those diagnosed ≤ 1 year ago (v > 5 years ago), survivors treated with radiation, and past research participants were more likely to report use of PCSG (P < .05). Survivors reporting any psychosocial care were more likely to be "very satisfied" with how their needs were met (P < .001). CONCLUSION: Many survivors do not report a discussion with providers about the psychosocial effects of cancer, which reflects a missed opportunity to connect survivors to psychosocial services. These data can benchmark the success of efforts to improve access to cancer-related psychosocial care. |
Receipt of cancer treatment summaries and follow-up instructions among adult cancer survivors: results from a national survey
Sabatino SA , Thompson TD , Smith JL , Rowland JH , Forsythe LP , Pollack L , Hawkins NA . J Cancer Surviv 2012 7 (1) 32-43 PURPOSE: The purpose of this study is to examine reporting of treatment summaries and follow-up instructions among cancer survivors. METHODS: Using the 2010 National Health Interview Survey, we created logistic regression models among cancer survivors not in treatment (n = 1,345) to determine characteristics associated with reporting treatment summaries and written follow-up instructions, adjusting for sociodemographic, access, and cancer-related factors. Findings are presented for all survivors and those recently diagnosed (≤4 years). We also examined unadjusted associations between written instructions and subsequent surveillance and screening. RESULTS: Among those recently diagnosed, 38% reported receiving treatment summaries and 58% reported written instructions. Among all survivors, approximately one third reported summaries and 44% reported written instructions. After adjustment, lower reporting of summaries was associated with cancer site, race, and number of treatment modalities among those recently diagnosed, and white vs. black or Hispanic race/ethnicity, breast vs. colorectal cancer, >10 vs. ≤5 years since diagnosis, no clinical trials participation, and better than fair health among all survivors. For instructions, lower reporting was associated with no trials participation and lower income among those recently diagnosed, and increasing age, white vs. black race, lower income, >10 vs. ≤5 years since diagnosis, 1 vs. ≥2 treatment modalities, no trials participation, and at least good vs. fair/poor health among all survivors. Written instructions were associated with reporting provider recommendations for breast and cervical cancer surveillance, and recent screening mammograms. CONCLUSION: Many recently diagnosed cancer survivors did not report receiving treatment summaries and written follow-up instructions. Opportunities exist to examine associations between use of these documents and recommended care and outcomes, and to facilitate their adoption. IMPLICATIONS FOR CANCER SURVIVORS: Cancer survivors who have completed therapy should ask their providers for treatment summaries and written follow-up instructions, and discuss with them how their cancer and therapy impact their future health care. |
Mental and physical health-related quality of life among U.S. cancer survivors: population estimates from the 2010 National Health Interview Survey
Weaver KE , Forsythe LP , Reeve BB , Alfano CM , Rodriguez JL , Sabatino SA , Hawkins NA , Rowland JH . Cancer Epidemiol Biomarkers Prev 2012 21 (11) 2108-17 BACKGROUND: Despite extensive data on health-related quality of life (HRQOL) among cancer survivors, we do not yet have an estimate of the percentage of survivors with poor mental and physical HRQOL compared with population norms. HRQOL population means for adult-onset cancer survivors of all ages and across the survivorship trajectory also have not been published. METHODS: Survivors (N = 1,822) and adults with no cancer history (N = 24,804) were identified from the 2010 National Health Interview Survey. The PROMIS(R) Global Health Scale was used to assess HRQOL. Poor HRQOL was defined as 1 SD or more below the PROMIS(R) population norm. RESULTS: Poor physical and mental HRQOL were reported by 24.5% and 10.1% of survivors, respectively, compared with 10.2% and 5.9% of adults without cancer (both P < 0.0001). This represents a population of approximately 3.3 million and 1.4 million U.S. survivors with poor physical and mental HRQOL. Adjusted mean mental and physical HRQOL scores were similar for breast, prostate, and melanoma survivors compared with adults without cancer. Survivors of cervical, colorectal, hematologic, short-survival, and other cancers had worse physical HRQOL; cervical and short-survival cancer survivors reported worse mental HRQOL. CONCLUSION: These data elucidate the burden of cancer diagnosis and treatment among U.S. survivors and can be used to monitor the impact of national efforts to improve survivorship care and outcomes.Impact: We present novel data on the number of U.S. survivors with poor HRQOL. Interventions for high-risk groups that can be easily implemented are needed to improve survivor health at a population level. (Cancer Epidemiol Biomarkers Prev; 21(11); 1-10. (c)2012 AACR.) |
Physician over-recommendation of mammography for terminally ill women
Leach CR , Klabunde CN , Alfano CM , Smith JL , Rowland JH . Cancer 2012 118 (1) 27-37 BACKGROUND: There has been recent, sometimes intense, debate about when to begin screening and how often to screen women for breast cancer with mammography. However, there should be no controversy regarding screening women who are unlikely to benefit from the procedure, such as those with a serious, life-limiting illness who would not live long enough to benefit from the potential detection and treatment of breast cancer. Identifying characteristics of physicians who recommend mammography for terminally ill women can help guide efforts to minimize patient risks and make better use of health care resources. METHODS: The authors used data from a nationally representative survey of primary care physicians (PCPs) (N = 1196; response rate, 67.5%) conducted in 2006 and 2007 to examine PCPs' breast cancer screening recommendations for hypothetical patients ages 50 years, 65 years, and 80 years who were healthy, had a moderate comorbidity, or had a terminal comorbidity. RESULTS: Many PCPs (47.7%) reported that they would recommend mammography to a woman aged 50 years, 65 years, or 80 years with terminal lung cancer, indicating over-recommendation. Physician characteristics associated with over-recommending mammography included obstetrician/gynecologist (odds ratio [OR], 1.69) or internal medicine (OR, 0.45) specialty, being a woman (OR, 1.40), being a racial/ethnic minority (OR, 1.72), and working in a smaller practice (OR, 1.41). CONCLUSIONS: The current results indicated that physician over-recommendation of screening mammography among terminally ill women is common. Certain physician and practice characteristics, including specialty, were associated with over-recommending mammography. The authors concluded that an informed and shared mammography decision-making process for terminally ill women may eliminate unnecessary patient risks and health care expenditures. (Cancer 2012;. (c) 2011 American Cancer Society.) |
Introduction: charting the landscape of cancer survivors' health-related outcomes and care
Pollack LA , Rowland JH , Crammer C , Stefanek M . Cancer 2009 115 4265-9 The field of cancer survivorship is characterized by a complex and rapidly evolving landscape. This supplement presents a series of data-driven articles selected to highlight the breadth of new knowledge in this area of the cancer control continuum that were presented at the Fourth Biennial Cancer Survivorship Research Conference in Atlanta, Georgia, June 2008. Included in the volume is research on the biobehavioral impact of cancer; studies on quality-of-life and economic outcomes; and work focused on caregivers, understudied populations, and healthcare providers. |
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