WorldWideScience

Sample records for technology twenty-four hour

  1. Twenty-Four-Hour Ambulatory Blood Pressure Monitoring in Hypertension

    Science.gov (United States)

    2012-01-01

    Executive Summary Objective The objective of this health technology assessment was to determine the clinical effectiveness and cost-effectiveness of 24-hour ambulatory blood pressure monitoring (ABPM) for hypertension. Clinical Need: Condition and Target Population Hypertension occurs when either systolic blood pressure, the pressure in the artery when the heart contracts, or diastolic blood pressure, the pressure in the artery when the heart relaxes between beats, are consistently high. Blood pressure (BP) that is consistently more than 140/90 mmHg (systolic/diastolic) is considered high. A lower threshold, greater than 130/80 mmHg (systolic/diastolic), is set for individuals with diabetes or chronic kidney disease. In 2006 and 2007, the age-standardized incidence rate of diagnosed hypertension in Canada was 25.8 per 1,000 (450,000 individuals were newly diagnosed). During the same time period, 22.7% of adult Canadians were living with diagnosed hypertension. A smaller proportion of Canadians are unaware they have hypertension; therefore, the estimated number of Canadians affected by this disease may be higher. Diagnosis and management of hypertension are important, since elevated BP levels are related to the risk of cardiovascular disease, including stroke. In Canada in 2003, the costs to the health care system related to the diagnosis, treatment, and management of hypertension were over $2.3 billion (Cdn). Technology The 24-hour ABPM device consists of a standard inflatable cuff attached to a small computer weighing about 500 grams, which is worn over the shoulder or on a belt. The technology is noninvasive and fully automated. The device takes BP measurements every 15 to 30 minutes over a 24-to 28-hour time period, thus providing extended, continuous BP recordings even during a patient’s normal daily activities. Information on the multiple BP measurements can be downloaded to a computer. The main detection methods used by the device are auscultation and

  2. Mortality Pattern within Twenty-Four Hours of Emergency Paediatric ...

    African Journals Online (AJOL)

    The highest mortality within the first 24 hours of admission was recorded among patients with malaria (89.0%) followed by protein energy malnutrition. CONCLUSION: Majority of deaths among emergency paediatric admission occur within the first 24 hours of admission and are associated with clinical conditions such as ...

  3. Twenty-four hour ambulatory blood pressure monitoring in adolescents with type 1 diabetes: getting started.

    Science.gov (United States)

    Pellizzari, Margaret; Speiser, Phyllis W; Carey, Dennis E; Fort, Pavel; Kreitzer, Paula M; Frank, Graeme R

    2008-11-01

    Twenty-four hour ambulatory blood pressure monitoring (ABPM) is a valuable tool in the pediatric and adolescent population with type 1 diabetes. It provides useful information not readily available from sporadic clinic blood pressure (BP) measurements and a more reliable estimation of the subject's BP over an extended period of time. Ambulatory blood pressure monitoring is gaining popularity with clinicians and investigators alike. The American Heart Association has recently issued recommendations for the use of ABPM in children and adolescents. We have incorporated ABPM into our adolescent diabetes practice and present useful information for clinicians planning to initiate 24 h ABPM in their clinical practice.

  4. Twenty-four-hour blood pressure among Greenlanders and Danes: relationship to diet and lifestyle

    DEFF Research Database (Denmark)

    Jørgensen, Marit Eika; Pedersen, M.B.; Siggaard, Cecilie

    2002-01-01

    IV: Greenlanders in Greenland consuming mainly traditional Greenlandic food. All subjects underwent a physical examination, laboratory screening of blood and urine samples, and completed a questionnaire on diet, physical activity, smoking status, intake of alcohol, liquorices, vitamins and minerals....../73-127/77), Greenlanders 122/ 69 (119/68-124/70)). Among Greenlanders, blood pressure increased with age and male gender, and systolic blood pressure increased with body mass index (BMI). No association with diet was found. The difference between the two populations persisted after controlling for age, gender, BMI...... to diet and lifestyle - ResearchGate. Available from: http://www.researchgate.net/publication/11001663_Twenty-four-hour_blood_pressure_among_Greenlanders_and_Danes_Relationship_to_diet_and_lifestyle [accessed Oct 7, 2015]....

  5. Twenty-four-hour ambulatory blood pressure monitoring in very elderly patients

    Science.gov (United States)

    Cappelleri, Claudia; Janoschka, Alin; Berli, Reto; Kohler, Sibylle; Braun-Dullaeus, Ruediger C.; Heuss, Ludwig T.; Wolfrum, Mathias

    2017-01-01

    Abstract Elevated blood pressure (BP) is frequently diagnosed in very elderly hospitalized patients. Accurate diagnosis of hypertension is challenging in the hospital environment, due to the “white coat effect,” and both overtreatment and undertreatment can adversely affect clinical outcome. Twenty-four-hour ambulatory blood pressure monitoring (ABPM) has the potential to avoid the “white coat effect” and accurately guide the management of hypertension. However, effects of the hospital environment on ABPM are unknown in the very elderly. We set out to enroll 45 patients, age ≥70 years, with elevated conventional BP during hospitalization in this observational study. It was prespecified by protocol to assess initially the difference between 24-hour BP during hospital-admission and home follow-up. Subsequent analysis should investigate the change in anxiety (Hospital Anxiety and Depression Scale-A [HADS-A]) after discharge, the correlation with change in 24-hour BP after discharge, and the prevalence of orthostatic hypertension. Thirty-one patients were included in the final analysis (age 83.5 ± 4.4 years; 71% female). Twenty-four-hour BP decreased significantly after hospital discharge (systolic from 133.5 ± 15.6 to 126.2 ± 14.4 mm Hg [millimeter of mercury], P = .008; diastolic from 71.0 ± 9.0 to 68.3 ± 8.6 mm Hg, P = .046). Anxiety level (HADS-A) decreased significantly after discharge, from 7.5 (interquartile range [IQR]: 4.0–13.8) to 5.0 (IQR: 4.0–8.0, P = .012). The change in anxiety was a predictor of change in systolic BP after discharge (F[1,20] = 5.9, P = .025). Sixty-one percent of the patients had significant orthostatic hypotension during hospital stay. In conclusion, 24-hour BP in very elderly patients is lower in the home environment than during hospitalization. This phenomenon seems to be directly linked to a lower anxiety-level at home. Reassessing hypertension at home may decrease the

  6. Role of Twenty-Four-Hour Ambulatory Blood Pressure Monitoring in Children on Dialysis

    Science.gov (United States)

    Sutherland, Scott M.; Begin, Brandy; Salsbery, Kari; McCabe, Lonisa; Potter, Donald; Alexander, Steven R.; Wong, Cynthia J.

    2011-01-01

    Summary Background and objectives Pre- or postdialysis BP recordings are imprecise, can be biased, and have poor test–retest reliability in children on dialysis. We aimed to examine the possible differences between pre- and postdialysis BP levels and 24-hour ambulatory BP monitoring (ABPM) in diagnosis of hypertension (HTN). Design, setting, participants, & measurements Twenty-four children on dialysis had 24-hour ABPM in the interdialytic period, and values were compared with average pre- and postdialysis systolic BP (SBP) and diastolic BP (DBP) recordings that week. Each patient had an echocardiogram to determine presence of left ventricular hypertrophy (LVH). Results By ABPM, 8% of patients had white coat HTN and 12% had masked HTN. There was no significant difference in diagnosis of systolic HTN based on ABPM daytime SBP mean or load and postdialysis SBP. However, only 15% of patients had diastolic HTN based on postdialysis measures, whereas 46% of patients had significantly elevated daytime DBP loads and 71% had high nighttime DBP loads on ABPM. Forty-eight percent of patients were SBP nondippers. Children with LVH had higher daytime and nighttime SBP loads, significantly higher daytime and nighttime DBP loads, and lesser degree of nocturnal dipping of SBP compared with those who did not. Conclusion ABPM is more informative than pre- and postdialysis BPs and improves the predictability of BP as a risk factor for target organ damage. Diagnosis and treatment monitoring of HTN among pediatric dialysis patients is enhanced with addition of ABPM. PMID:21273374

  7. Isolated total RNA and protein are preserved after thawing for more than twenty-four hours

    Science.gov (United States)

    de Oliveira, Ivone Braga; Ramos, Débora Rothstein; Lopes, Karen Lucasechi; de Souza, Regiane Machado; Heimann, Joel Claudio; Furukawa, Luzia Naôko Shinohara

    2012-01-01

    OBJECTIVE: The preservation of biological samples at a low temperature is important for later biochemical and/or histological analyses. However, the molecular viability of thawed samples has not been studied sufficiently in depth. The present study was undertaken to evaluate the viability of intact tissues, tissue homogenates, and isolated total RNA after defrosting for more than twenty-four hours. METHODS: The molecular viability of the thawed samples (n = 82) was assessed using the A260/A280 ratio, the RNA concentration, the RNA integrity, the level of intact mRNA determined by reverse transcriptase polymerase chain reaction, the protein level determined by Western blotting, and an examination of the histological structure. RESULTS: The integrity of the total RNA was not preserved in the thawed intact tissue, but the RNA integrity and level of mRNA were perfectly preserved in isolated defrosted samples of total RNA. Additionally, the level of β-actin protein was preserved in both thawed intact tissue and homogenates. CONCLUSION: Isolated total RNA does not undergo degradation due to thawing for at least 24 hours, and it is recommended to isolate the total RNA as soon as possible after tissue collection. Moreover, the protein level is preserved in defrosted tissues. PMID:22473407

  8. Twenty-four hour noninvasive ventilation in Duchenne muscular dystrophy: a safe alternative to tracheostomy.

    Science.gov (United States)

    McKim, Doug A; Griller, Nadia; LeBlanc, Carole; Woolnough, Andrew; King, Judy

    2013-01-01

    Almost all patients with Duchenne muscular dystrophy (DMD) eventually develop respiratory failure. Once 24 h ventilation is required, either due to incomplete effectiveness of nocturnal noninvasive ventilation (NIV) or bulbar weakness, it is common practice to recommend invasive tracheostomy ventilation; however, noninvasive daytime mouthpiece ventilation (MPV) as an addition to nocturnal mask ventilation is also an alternative. The authors' experience with 12 DMD patients who used 24 h NIV with mask NIV at night and MPV during daytime hours is reported. The mean (± SD) age and vital capacity (VC) at initiation of nocturnal (only) NIV subjects were 17.8±3.5 years and 0.90±0.40 L (21% predicted), respectively; and, at the time of MPV, 19.8±3.4 years and 0.57 L (13.2% predicted), respectively. In clinical practice, carbon dioxide (CO2) levels were measured using different methods: arterial blood gas analysis, transcutaneous partial pressure of CO2 and, predominantly, by end-tidal CO2. While the results suggested improved CO2 levels, these were not frequently confirmed by arterial blood gas measurement. The mean survival on 24 h NIV has been 5.7 years (range 0.17 to 12 years). Of the 12 patients, two deaths occurred after 3.75 and four years, respectively, on MPV; the remaining patients continue on 24 h NIV (range two months to 12 years; mean 5.3 years; median 3.5 years). Twenty-four hour NIV should be considered a safe alternative for patients with DMD because its use may obviate the need for tracheostomy in patients with chronic respiratory failure requiring more than nocturnal ventilation alone.

  9. Twenty-four-hour rhythmicity of circulating metabolites: effect of body mass and type 2 diabetes.

    Science.gov (United States)

    Isherwood, Cheryl M; Van der Veen, Daan R; Johnston, Jonathan D; Skene, Debra J

    2017-12-01

    Metabolic profiling of individuals with type 2 diabetes mellitus (T2DM) has previously been limited to single-time-point samples, ignoring time-of-day variation. Here, we tested our hypothesis that body mass and T2DM affect daily rhythmicity and concentrations of circulating metabolites across a 24-h day in 3 age-matched, male groups-lean, overweight/obese (OW/OB), and OW/OB with T2DM-in controlled laboratory conditions, which were not confounded by large meals. By using targeted liquid chromatography/mass spectrometry metabolomics, we quantified 130 plasma metabolites every 2 h over 24 h, and we show that average metabolite concentrations were significantly altered by increased body mass (90 of 130) and T2DM (56 of 130). Thirty-eight percent of metabolites exhibited daily rhythms in at least 1 study group, and where a metabolite was rhythmic in >1 group, its peak time was comparable. The optimal time of day was assessed to provide discriminating biomarkers. This differed between metabolite classes and study groups-for example, phospholipids showed maximal difference at 5:00 AM (lean vs. OW/OB) and at 5:00 PM (OW/OB vs. T2DM). Metabolites that were identified with both robust 24-h rhythms and significant concentration differences between study groups emphasize the importance of controlling the time of day for diagnosis and biomarker discovery, offering a significant improvement over current single sampling.-Isherwood, C. M., Van der Veen, D. R., Johnston, J. D., Skene, D. J. Twenty-four-hour rhythmicity of circulating metabolites: effect of body mass and type 2 diabetes. © The Author(s).

  10. Twenty-four-hour ambulatory electrocardiography characterization of heart rhythm in Vipera berus-envenomed dogs.

    Science.gov (United States)

    Vestberg, Anna Rave; Tidholm, Anna; Ljungvall, Ingrid

    2017-05-03

    Vipera berus has a worldwide distribution and causes high morbidity in dogs annually. A complication to envenomation may be cardiac arrhythmias. The purpose of this study was to investigate the prevalence, types, and timing of arrhythmias, using 24-h ambulatory electrocardiography (24-AECG), in dogs bitten by V. berus in the first 24-32 h after envenomation. In addition, this study aimed to investigate if there were differences in selected clinical and hematological- and biochemical variables (including cardiac troponin I) at admission between V. berus-envenomed dogs with and without detected pathologic arrhythmias. Seventeen prospectively recruited client-owned dogs acutely envenomed by V. berus, were therefore examined clinically and echocardiographically, sampled for blood, hospitalized, and monitored by 24-AECG. Clinically significant pathologic arrhythmias in this study were of ventricular origin, such as frequent single ventricular premature contractions (VPCs) and couplets of VPCs, episodes of ventricular tachycardia and idioventricular rhythm, and "R-on-T phenomenon". Variations of these arrhythmias were detected by 24-AECG in eight (47%) of included dogs. No arrhythmias were detected by cardiac auscultation. Twenty-four hours following envenomation, four out of eight dogs experienced decreases (all P dogs experienced increases (all P dogs bitten on a limb developed pathologic arrhythmias. Otherwise, no significant differences in clinical, hematological or biochemical variables were seen between dogs with pathologic arrhythmias and those without. Forty-seven percent of dogs bitten by V. berus included in this study experienced pathologic arrhythmias of abnormal ventricular depolarization. During the first 24-32 h from the snakebite, some dogs experienced a decrease in arrhythmic episodes and others an increase in arrhythmic episodes. These findings indicate a potential value of repeated or prolonged electrocardiography monitoring of envenomed dogs for

  11. Twenty-four hour blood flow in the forefoot after reconstructive vascular surgery

    DEFF Research Database (Denmark)

    Jelnes, R

    1986-01-01

    during day activities. During sleep, however, SBF increased by 80% (p less than 0.001). The relative changes in SBF from day to night at the postoperative examination did not differ from that of the control group, i.e., the normal 24-hour blood flow pattern had been obtained. These changes in SBF...... that the long-term postreconstructive hyperemia merely is a reflection of the normal 24-hour blood flow pattern....

  12. Twenty-four hour and spot urine metabolic evaluations: correlations versus agreements.

    Science.gov (United States)

    Hong, Yet Hoi; Dublin, Norman; Razack, Azad Hassan; Mohd, Mustafa Ali; Husain, Ruby

    2010-06-01

    To investigate the correlations and agreements between the solute/creatinine ratios from the 24-hour and early morning spot urine samples for metabolic evaluation in stone-formers given the various pitfalls with the 24-hour urinary metabolic evaluation in stone-formers. 30 urinary stone-formers out of an initial 62 recruited provided a complete 24-hour urine and early morning spot urine samples for metabolic evaluation. Pearson correlation and Bland and Altman Test were used to assess the correlations and agreements. Significant correlations were established between the 24-hour urinary solute excretions and the corresponding early morning spot urine solute/creatinine ratios for calcium, magnesium, urate, potassium, oxalate, citrate, and the Differential Gibb's free energy value of calcium oxalate DG(CaOx) values. However, all these solute/creatinine measurements between the 24-hour and early morning spot urine samples were judged to be not within the acceptable limits based on the estimated "limit of agreement" by the Bland and Altman Test of Agreement. Diurnal circadian rhythm and postprandial excretion surge are thought to be responsible for the disagreements. Thus, the early morning spot urine is not suitable to be used interchangeably to replace the 24-hour urine collection in the evaluation of urinary metabolic abnormalities in stone-formers. A good correlation does not translate to an agreement between the 2 measurements. Copyright (c) 2010 Elsevier Inc. All rights reserved.

  13. Twenty-Four-Hour Mobility During Acute Hospitalization in Older Medical Patients

    DEFF Research Database (Denmark)

    Pedersen, Mette Merete; Bodilsen, Ann Christine; Petersen, Janne

    2013-01-01

    BACKGROUND: Inactivity during hospitalization in older medical patients may lead to functional decline. This study quantified 24-hour mobility, validated the accelerometers used, and assessed the daily level of basic mobility in acutely admitted older medical patients during their hospitalization....... METHODS: This is a prospective cohort study in older medical patients able to walk independently (ambulatory patients) and those not able to walk independently (nonambulatory patients) on admission. The 24-hour mobility level during hospitalization was assessed by measuring the time in lying, sitting......%-100% with positions performed by older medical patients. CONCLUSIONS: Older acutely hospitalized medical patients with walking ability spent 17h/d of their in-hospital time in bed, and the level of in-hospital mobility seemed to depend on the patients' level of basic mobility. The accelerometers were valid...

  14. Twenty-four hour cardiopulmonary stability in a model of assisted newborn Fontan circulation.

    Science.gov (United States)

    Myers, Cynthia D; Mattix, Kelly; Presson, Robert G; Vijay, Palaniswamy; Maynes, Domingo; Litwak, Kenneth N; Brown, John W; Rodefeld, Mark D

    2006-01-01

    Morbidity and mortality after stage-1 palliation of hypoplastic left heart syndrome is high as a result of adverse physiologic conditions imposed by the systemic-to-pulmonary arterial shunt. Conversion to a systemic venous source of pulmonary blood flow (Glenn/Fontan) substantially decreases instability and mortality risk. Cavopulmonary assist has the potential to eliminate critical dependence on the problematic systemic arterial shunt. We studied this support modality during a 24-hour period in a neonatal animal model of univentricular Fontan circulation. Lambs (8.1 +/- 0.9 kg, 8.3 +/- 2.1 days, n = 7) underwent total cavopulmonary diversion. A miniature centrifugal pump was used to assist cavopulmonary flow. Control animals (6.6 +/- 1.0 kg, 7.3 +/- 2.1 days, n = 11) underwent placement of monitoring lines only. Hemodynamic and gas exchange data were measured. Within-group and between-group comparisons were made using two-way repeated measures analysis of variance. After an initial phase of reactivity, pulmonary vascular resistance returned to low levels and was not significantly different from baseline values after hour 13 or significantly different from control values after hour 4. Systemic venous pressure remained low. Oxygenation and ventilation remained normal with no histologic evidence of parenchymal lung injury. Pump-assisted cavopulmonary diversion is well tolerated up to 24 hours in the neonatal period. Despite initial reactivity, pulmonary vascular resistance trended toward normal and approached control values. Cavopulmonary assist holds the potential to serve as a bridge to neonatal Fontan repair of single ventricle. Chronic studies are warranted to determine the duration and rate of weaning of support to transition to an unassisted univentricular Fontan circulation.

  15. Twenty-four hour blood flow in the forefoot after reconstructive vascular surgery

    International Nuclear Information System (INIS)

    Jelnes, R.

    1986-01-01

    Local blood flow in the forefoot (SBF) was measured continuously during 24 hours by 133xenon clearance technique in 10 patients prior to and at least 1 year after successful reconstructive vascular surgery for severe arterial insufficiency (mean: 18 months, range: 12-36). A group of 10 patients with normal peripheral circulation served as a control group. In spite of a considerable increase of the ankle/arm systolic blood pressure index--preoperative: 0.30 +/- 0.12, postoperative: 0.78 +/- 0.28 (mean +/- 1 SD)--the SBF decreased by 50% (p less than 0.001) following reconstructive vascular surgery during day activities. During sleep, however, SBF increased by 80% (p less than 0.001). The relative changes in SBF from day to night at the postoperative examination did not differ from that of the control group, i.e., the normal 24-hour blood flow pattern had been obtained. These changes in SBF are explained by the reappearance of peripheral vasoregulatory mechanisms. Postreconstructive hyperemia was evaluated by the same technique. The changes in SBF following surgery in the positions supine, awake and supine, asleep were found to be insignificant (0.80 less than p less than 0.90). It is concluded that the long-term postreconstructive hyperemia merely is a reflection of the normal 24-hour blood flow pattern

  16. Twenty-four-hour shift work, depressive symptoms, and job dissatisfaction among Japanese firefighters.

    Science.gov (United States)

    Saijo, Yasuaki; Ueno, Takeji; Hashimoto, Yoshihiro

    2008-05-01

    The influence of a 24-hr shift-work burden on firefighters' mental health has not been fully investigated. The purpose of this study is to clarify the relationships between specific workload items among firefighters engaged in 24-hr shift work and job stress as estimated by the generic job-stress questionnaire on depressive symptoms and job dissatisfaction from the National Institute for Occupational Safety and Health (NIOSH). The subjects were 1,301 firefighters. The questionnaire covered age, gender, job type, job class, marital status, smoking and drinking habits, number of attendances, turnout time, extra work hours, average nap-time, the Center for Epidemiologic Studies Depression Scale (CES-D), and questions from the NIOSH generic job-stress questionnaire, including those on job satisfaction. In multivariate logistic regression analyses, a model that included all variables except the measures from the NIOSH generic job-stress questionnaire showed that shorter nap-time had significant higher odds ratios (ORs) for depressive symptoms and job dissatisfaction, but the significances disappeared in a fully adjusted model. In fully adjusted logistic regression analyses, low quantitative workload, low variance in workload, high intra- and intergroup conflict, low social support from a supervisor, high role conflict and ambiguity, and low self-esteem had significant higher ORs for depressive symptoms and/or job dissatisfaction. Amount of workload, variance in workload, intra- and intergroup conflict, social support from a supervisor, role conflict and ambiguity, and self-esteem were significantly related to depressive symptoms and/or job dissatisfaction among Japanese firefighters. Moreover, inadequate nap-time may affect their mental health. (c) 2008 Wiley-Liss, Inc.

  17. Twenty-four-hour esophageal pH monitoring in children and adolescents with chronic and/or recurrent rhinosinusitis

    Directory of Open Access Journals (Sweden)

    V.R.S.G. Monteiro

    2005-02-01

    Full Text Available Gastroesophageal reflux (GER disorder was studied in children and adolescents with chronic and/or recurrent rhinosinusitis not associated with bronchial asthma. Ten children with a clinical and radiological diagnosis of chronic and/or recurrent rhinosinusitis, consecutively attended at the Pediatric Otolaryngology Outpatient Clinic, Federal University of São Paulo, were evaluated. Prolonged esophageal pH monitoring was used to investigate GER disorder. The mean age of the ten patients evaluated (eight males was 7.4 ± 2.4 years. Two patients presented vomiting as a clinical manifestation and one patient presented retrosternal pain with a burning sensation. Twenty-four-hour esophageal pH monitoring was performed using the Sandhill apparatus. An antimony probe electrode was placed in the lower third of the esophagus, confirmed by fluoroscopy and later by a chest X-ray. The parameters analyzed by esophageal pH monitoring included: total percent time of the presence of acid esophageal pH, i.e., pH below 4 (<4.2%; total number of acid episodes (<50 episodes; number of reflux episodes longer than 5 min (3 or less, and duration of the longest reflux episode (<9.2 min. One patient (1/10, 10% presented a 24-h esophageal pH profile compatible with GER disorder. This data suggest that an association between chronic rhinosinusitis not associated with bronchial asthma and GER disorder may exist in children and adolescents, especially in those with compatible GER disorder symptoms. In these cases, 24-h esophageal pH monitoring should be performed before indicating surgery, since the present data suggest that 10% of chronic rhinosinusitis surgeries can be eliminated.

  18. Twenty-four hours hypothermia has temporary efficacy in reducing brain infarction and inflammation in aged rats

    DEFF Research Database (Denmark)

    Sandu, Raluca Elena; Buga, Ana Maria; Balseanu, Adrian Tudor

    2016-01-01

    Stroke is a major cause of disability for which no neuroprotective measures are available. Age is the principal nonmodifiable risk factor for this disease. Previously, we reported that exposure to hydrogen sulfide for 48 hours after stroke lowers whole body temperature and confers neuroprotection...... in aged animals. Because the duration of hypothermia in most clinical trials is between 24 and 48 hours, we questioned whether 24 hours exposure to gaseous hypothermia confers the same neuroprotective efficacy as 48 hours exposure. We found that a shorter exposure to hypothermia transiently reduced both......-induced hypothermia, the poststroke aged rats experienced a persistent sleep impairment during their active nocturnal period. Our data suggest that cellular events that are delayed by hypothermia in aged rats may, in the long term, rebound, and diminish the beneficial effects....

  19. Twenty-four-hour duration of effect of intranasal corticosteroids for seasonal allergic rhinitis symptoms: clinical evidence and relevance.

    Science.gov (United States)

    DuBuske, Lawrence M

    2012-01-01

    Seasonal allergic rhinitis (SAR) symptoms are often most severe and/or disruptive during overnight and morning hours, resulting in cognitive/performance impairments and reduced quality of life throughout the following day. Surveys of allergy patients and health care practitioners reveal a common perception that intranasal steroids (INSs), many of which are dosed q.d., fail to adequately relieve symptoms for a full 24 hours. This review assessed whether perceptions of the 24-hour duration of action of INSs correspond with duration of action documented in clinical literature. SAR clinical trial literature of the last 5 years was reviewed to identify studies of INSs incorporating morning instantaneous (A.M. NOW) or instantaneous assessments of 24-hour duration of action. In numerous placebo-controlled trials of INSs in patients with SAR, treatment was associated with significantly greater improvements in A.M. NOW symptoms from baseline versus placebo. For congestion, this is noteworthy, because patients often cite this symptom, especially in the morning, as the most bothersome symptom. Comparison of A.M. NOW and daily scores suggests minimal drop in efficacy at 24 hours postdose. In several studies, INS treatment was found superior to intranasal or oral antihistamines in A.M. NOW symptom improvement. Once-daily INSs have potential for effective 24-hour symptom relief; however, there is an apparent disconnect between these findings and patient/physician perceptions. This discrepancy may be explained, in part, by less-than-ideal treatment adherence among "real-world" patients versus subjects treated in clinical trials. Proactive counseling can encourage proper INS use and help maximize treatment benefits.

  20. A Predictive Model to Classify Undifferentiated Fever Cases Based on Twenty-Four-Hour Continuous Tympanic Temperature Recording

    Directory of Open Access Journals (Sweden)

    Pradeepa H. Dakappa

    2017-01-01

    Full Text Available Diagnosis of undifferentiated fever is a major challenging task to the physician which often remains undiagnosed and delays the treatment. The aim of the study was to record and analyze a 24-hour continuous tympanic temperature and evaluate its utility in the diagnosis of undifferentiated fevers. This was an observational study conducted in the Kasturba Medical College and Hospitals, Mangaluru, India. A total of ninety-six (n=96 patients were presented with undifferentiated fever. Their tympanic temperature was recorded continuously for 24 hours. Temperature data were preprocessed and various signal characteristic features were extracted and trained in classification machine learning algorithms using MATLAB software. The quadratic support vector machine algorithm yielded an overall accuracy of 71.9% in differentiating the fevers into four major categories, namely, tuberculosis, intracellular bacterial infections, dengue fever, and noninfectious diseases. The area under ROC curve for tuberculosis, intracellular bacterial infections, dengue fever, and noninfectious diseases was found to be 0.961, 0.801, 0.815, and 0.818, respectively. Good agreement was observed [kappa = 0.618 (p<0.001, 95% CI (0.498–0.737] between the actual diagnosis of cases and the quadratic support vector machine learning algorithm. The 24-hour continuous tympanic temperature recording with supervised machine learning algorithm appears to be a promising noninvasive and reliable diagnostic tool.

  1. A Predictive Model to Classify Undifferentiated Fever Cases Based on Twenty-Four-Hour Continuous Tympanic Temperature Recording.

    Science.gov (United States)

    Dakappa, Pradeepa H; Prasad, Keerthana; Rao, Sathish B; Bolumbu, Ganaraja; Bhat, Gopalkrishna K; Mahabala, Chakrapani

    2017-01-01

    Diagnosis of undifferentiated fever is a major challenging task to the physician which often remains undiagnosed and delays the treatment. The aim of the study was to record and analyze a 24-hour continuous tympanic temperature and evaluate its utility in the diagnosis of undifferentiated fevers. This was an observational study conducted in the Kasturba Medical College and Hospitals, Mangaluru, India. A total of ninety-six ( n = 96) patients were presented with undifferentiated fever. Their tympanic temperature was recorded continuously for 24 hours. Temperature data were preprocessed and various signal characteristic features were extracted and trained in classification machine learning algorithms using MATLAB software. The quadratic support vector machine algorithm yielded an overall accuracy of 71.9% in differentiating the fevers into four major categories, namely, tuberculosis, intracellular bacterial infections, dengue fever, and noninfectious diseases. The area under ROC curve for tuberculosis, intracellular bacterial infections, dengue fever, and noninfectious diseases was found to be 0.961, 0.801, 0.815, and 0.818, respectively. Good agreement was observed [kappa = 0.618 ( p machine learning algorithm. The 24-hour continuous tympanic temperature recording with supervised machine learning algorithm appears to be a promising noninvasive and reliable diagnostic tool.

  2. Twenty-four hour intraocular pressure monitoring with the SENSIMED Triggerfish contact lens: effect of body posture during sleep.

    Science.gov (United States)

    Beltran-Agulló, Laura; Buys, Yvonne M; Jahan, Farzana; Shapiro, Colin M; Flanagan, John G; Cheng, Jason; Trope, Graham E

    2017-10-01

    To determine the difference in relative intraocular pressure (IOP) measured by the SENSIMED Triggerfish (TF) contact lens in flat compared with 30° head-up sleeping positions in patients with progressive primary open-angle glaucoma or normotensive glaucoma, based on recent or recurrent disc haemorrhage. Prospective, randomised, cross-over, open-label comparative study. IOP was monitored for 24 hours using TF on two separate sessions. Patients were randomly assigned to sleep flat one night and 30° head-up the other. Outputs in arbitrary units were obtained. Sleep and wake periods were defined as 22:00-6:00 and 8:00-22:00, respectively. Mean TF values during sleep and wake periods and wake-sleep and sleep-wake slopes were calculated for each session. TF output signals were compared between positions. Twelve subjects completed the study. Significant mean positive slopes were noted during the sleep period for both positions (pSleep position affects IOP as measured by TF in some patients with progressive glaucoma. The upward drift in TF output detected in >50% of the subjects requires further investigation to establish whether the increased output values over time are an artefact induced by the TF or a real change in IOP. NCT01351779. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

  3. [The value of twenty-four hour intraoesophageal pH monitoring and manometry in the management of patients with upper gastrointestinal symptoms].

    Science.gov (United States)

    Lakner, Lilla; Döbrönte, Zoltán

    2009-10-25

    Functional gastroenterological examinations (intraoesophageal pH monitoring, oesophageal manometry, scintigraphy, impedance examination) play important role in the management of patients with upper gastrointestinal complaints. Four different cases are demonstrated where diagnose and therapy was developed by these examinations. Two patients had typical gastro-oesophageal reflux symptoms and two others had dysphagia. Intraoesophageal pH monitoring was performed by Zinetics twenty-four hour one or two channel pH catheters and oesophageal manometry was carried out by Zinetics EMC four channel catheter with water perfusion method. In one of the patients with typical and extraoesophageal reflux symptoms, lower oesophageal sphincter incompetency by manometry and pathological acid reflux was observed by intraoesophageal pH monitoring, respectively. Furthermore, hiatal hernia was established, peristalsis of the oesophagus proved to be preserved. Because of incomplete efficacy of proton pump inhibitor (PPI) therapy, antireflux surgery was indicated. An other patient with reflux symptoms had physiological pH monitoring and manometric values. Hypersensitive oesophagus was diagnosed and PPI therapy in double dose was applied. Both patients are symptom free up to now. Other two patients complained difficult swallowing and weight loss. Absence of lower oesophageal sphincter relaxation and hypomotility of the oesophagus was observed. After oesophageal dilatation, both patients with achalasia could easy swallow and eat. Our cases confirm the importance of the twenty-four hour intraoesophageal pH monitoring and oesophageal manometry in the diagnosis of gastro-oesophageal reflux disease, non-cardiac chest pain, other extraoesophageal manifestations and dysphagia. These examinations support the decision for the adequate therapeutic strategy (conventional treatment, surgery or operation or endoscopic intervention) and are important in the follow-up of patients.

  4. Twenty-four-hour ambulatory blood pressure monitoring for clinical evaluation of hypertensive patients in primary care: which groups would most benefit?

    Science.gov (United States)

    Grezzana, Guilherme B; Stein, Airton T; Pellanda, Lucia C

    2017-04-01

    Arterial hypertension is an important risk factor for cardiovascular outcomes. Blood pressure (BP) control levels remain largely out of target among primary healthcare (PHC) patients. Twenty-four-hour ambulatory blood pressure monitoring (ABPM) may contribute toward the identification of cardiovascular risk groups. To assess concordance between conventional office BP measurements and 24-h ABPM of hypertension control in cardiovascular risk groups of PHC hypertensive patients. A cross-sectional study with 569 hypertensive patients was carried out. The evaluation of BP was performed by a PHC doctor, and the 24-h ABPM was performed by a different and blinded provider. The therapeutic targets for BP followed the guidance of The Eighth Joint National Committee, the Brazilian guideline, and the 2013 European Society of Hypertension. Considering the hypertension control therapeutic targets, the guidelines were not similar and were used to evaluate differences in BP value concordances compared with BP standard measurements. After a multivariate logistic regression analysis, a conventional BP was used in comparison with ABPM in different cardiovascular risk groups of hypertensive patients. According to the ABPM by European Society of Hypertension guideline, the subgroup of inactive patients (P=0.006), with altered glycemia (P=0.015) and over 30 mg/dl albuminuria (P=0.001), presented discordance among methods. When a conventional BP measurement in comparison with the ABPM results according to the Brazilian ABPM guideline was used, the discordance occurred significantly in inactive (P=0.001) and microalbuminuria more than 30 mg/dl (P=0.022) subgroups. However, in this comparison, a concordance between high-density lipoprotein more than 60 mg/dl (P=0.015) and obesity (P=0.035) subgroups occurred. Uncontrolled glucose levels, a sedentary lifestyle, and the presence of microalbuminuria correspond to some cardiovascular risk groups that would particularly benefit from 24-h

  5. Twenty-four-hour esophageal impedance-pH monitoring in healthy preterm neonates: rate and characteristics of acid, weakly acidic, and weakly alkaline gastroesophageal reflux.

    Science.gov (United States)

    López-Alonso, Manuel; Moya, Maria Jose; Cabo, Jose Antonio; Ribas, Juan; del Carmen Macías, Maria; Silny, Jiry; Sifrim, Daniel

    2006-08-01

    Gastroesophageal reflux is a physiologic process and is considered pathologic (gastroesophageal reflux disease) when it causes symptoms or results in complications. It is common in preterm infants and occurs in healthy neonates. Twenty-four-hour pH monitoring commonly is used in children for diagnosis of gastroesophageal reflux disease, and abnormal reflux is considered with detection of increased esophageal acid exposure. However, in neonates, relatively few gastroesophageal reflux episodes cause esophageal acidification to pH feeds, which can induce a weaker acid secretory response than that observed in older infants and adults. As a consequence, gastric pH may be > 4 for prolonged periods, and reflux of gastric contents might be less acidic or even alkaline. Esophageal impedance monitoring can detect weakly acidic and even alkaline gastroesophageal reflux. The role of weakly acidic reflux in the pathophysiology of gastroesophageal reflux disease in preterm infants is not clear. To date, studies that have used impedance-pH in neonates assessed the association between nonacid reflux and cardiorespiratory symptoms, but no impedance data from healthy preterm neonates have been available to determine whether those symptomatic neonates had an increased number of weakly acidic reflux episodes or increased reactivity to a physiologic number of reflux events. Our aim with this study was to provide impedance-pH values for acid, weakly acidic, and weakly alkaline reflux from healthy preterm neonates. Esophageal impedance was recorded for 24 hours in 21 asymptomatic preterm neonates by replacing the conventional feeding tube with a specially designed feeding tube that included 9 impedance electrodes (8 French). All neonates were asymptomatic, with spontaneous breathing. Reflux monitoring was performed after comprehensive explanation and on receipt of written parental consent. Esophageal and gastric pH were monitored using a separate parallel pediatric catheter (6 French

  6. Trends in C-Reactive Protein Levels Are Associated with Neurological Change Twenty-Four Hours after Thrombolysis for Acute Ischemic Stroke.

    Science.gov (United States)

    Gill, Dipender; Sivakumaran, Prasanthi; Wilding, Peter; Love, Madeleine; Veltkamp, Roland; Kar, Arindam

    2016-08-01

    Elevated inflammatory markers such as C-reactive protein (CRP) are associated with worse outcomes in patients thrombolysed for acute ischemic stroke (AIS). To investigate whether changes in CRP levels are associated with neurological change after thrombolysis for AIS. Retrospective analysis of a single-center database of consecutive thrombolysis cases for AIS from October 18, 2011, to June 15, 2015, inclusive. Multivariate regression analysis was used to investigate the relationship between change in CRP 12-24 hours after thrombolysis and change in NIHSS (National Institutes of Health Stroke Scale) score 24 hours after thrombolysis. The other potentially confounding predictor variables included in the model were CRP on admission and NIHSS score before thrombolysis. Complete data were available for 108 out of possible 435 eligible patients. Increases in CRP levels 12-24 hours after thrombolysis were negatively associated with reduction in NIHSS score 24 hours after thrombolysis (coefficient .08, 95% confidence interval .031-.129, P = .002). Thus, on average, for every 12.5 mg/L additional increase in CRP 12-24 hours after thrombolysis, NIHSS score at 24 hours improved by 1 point less. While it was previously known that elevated CRP levels are associated with worse outcomes in patients thrombolysed for AIS, the current work demonstrates that changes in CRP levels after thrombolysis also relate to neurological change, and thus may have scope for use as prognostic markers. Copyright © 2016 National Stroke Association. Published by Elsevier Inc. All rights reserved.

  7. Temporal Changes in Sequential Quantitative Thallium-201 Imaging Following Myocardial Infarction in Dogs: Comparison of Four and Twenty-Four Hour Infarct Images

    Science.gov (United States)

    Umbach, Richard E.; Lange, Robert C.; Lee, John C.; Zaret, Barry L.

    1978-01-01

    Thallium-201 (201T1) myocardial perfusion imaging allows definition of zones of myocardial infarction and ischemia. The temporal changes in sequential quantitative 201T1 infarct imaging was studied 4 and 24 hours in dogs subjected to closed-chest anterior wall myocardial infarction. A temporal decrease in 201T1 imaged infarct areas was noted in 10 of 13 animals. In no animal did the infarct area increase. The imaged infarct area decreased by an average of 30% from 12.9 ± 6.2 cm2 at 4 hours to 9.1 ± 5.1 cm2 at 24 hours (p < 0.001), and involved 34 ± 16% of the total 201T1 left ventricular distribution at 4 hours and 22 ± 14% at 24 hours (p < 0.001). The magnitude of temporal change in imaged infarct area was not predicted by initial image defect or final histopathologic infarct size. Thus, the results of 201T1 infarct imaging in the early period of infarction are clearly dependent upon the time at which the procedure is performed. ImagesFIG. 1 PMID:752198

  8. Twenty-four hour metabolic rate measurements utilized as a reference to evaluate several prediction equations for calculating energy requirements in healthy infants

    Directory of Open Access Journals (Sweden)

    Rising Russell

    2011-02-01

    Full Text Available Abstract Background To date, only short-duration metabolic rate measurements of less than four hours have been used to evaluate prediction equations for calculating energy requirements in healthy infants. Therefore, the objective of this analysis was to utilize direct 24-hour metabolic rate measurements from a prior study to evaluate the accuracy of several currently used prediction equations for calculating energy expenditure (EE in healthy infants. Methods Data from 24-hour EE, resting (RMR and sleeping (SMR metabolic rates obtained from 10 healthy infants, served as a reference to evaluate 11 length-weight (LWT and weight (WT based prediction equations. Six prediction equations have been previously derived from 50 short-term EE measurements in the Enhanced Metabolic Testing Activity Chamber (EMTAC for assessing 24-hour EE, (EMTACEE-LWT and EMTACEE-WT, RMR (EMTACRMR-LWT and EMTACRMR-WT and SMR (EMTACSMR-LWT and EMTACSMR-WT. The last five additional prediction equations for calculating RMR consisted of the World Health Organization (WHO, the Schofield (SCH-LWT and SCH-WT and the Oxford (OXFORD-LWT and OXFORD-WT. Paired t-tests and the Bland & Altman limit analysis were both applied to evaluate the performance of each equation in comparison to the reference data. Results 24-hour EE, RMR and SMR calculated with the EMTACEE-WT, EMTACRMR-WT and both the EMTACSMR-LWT and EMTACSMR-WT prediction equations were similar, p = NS, to that obtained from the reference measurements. However, RMR calculated using the WHO, SCH-LWT, SCH-WT, OXFORD-LWT and OXFORD-WT prediction equations were not comparable to the direct 24-hour metabolic measurements (p Conclusions Weight based prediction equations, derived from short-duration EE measurements in the EMTAC, were accurate for calculating EE, RMR and SMR in healthy infants.

  9. Twenty-Four-Hour Blood Pressure Monitoring to Predict and Assess Impact of Renal Denervation: The DENERHTN Study (Renal Denervation for Hypertension).

    Science.gov (United States)

    Gosse, Philippe; Cremer, Antoine; Pereira, Helena; Bobrie, Guillaume; Chatellier, Gilles; Chamontin, Bernard; Courand, Pierre-Yves; Delsart, Pascal; Denolle, Thierry; Dourmap, Caroline; Ferrari, Emile; Girerd, Xavier; Michel Halimi, Jean; Herpin, Daniel; Lantelme, Pierre; Monge, Matthieu; Mounier-Vehier, Claire; Mourad, Jean-Jacques; Ormezzano, Olivier; Ribstein, Jean; Rossignol, Patrick; Sapoval, Marc; Vaïsse, Bernard; Zannad, Faiez; Azizi, Michel

    2017-03-01

    The DENERHTN trial (Renal Denervation for Hypertension) confirmed the blood pressure (BP) lowering efficacy of renal denervation added to a standardized stepped-care antihypertensive treatment for resistant hypertension at 6 months. We report here the effect of denervation on 24-hour BP and its variability and look for parameters that predicted the BP response. Patients with resistant hypertension were randomly assigned to denervation plus stepped-care treatment or treatment alone (control). Average and standard deviation of 24-hour, daytime, and nighttime BP and the smoothness index were calculated on recordings performed at randomization and 6 months. Responders were defined as a 6-month 24-hour systolic BP reduction ≥20 mm Hg. Analyses were performed on the per-protocol population. The significantly greater BP reduction in the denervation group was associated with a higher smoothness index ( P =0.02). Variability of 24-hour, daytime, and nighttime BP did not change significantly from baseline to 6 months in both groups. The number of responders was greater in the denervation (20/44, 44.5%) than in the control group (11/53, 20.8%; P =0.01). In the discriminant analysis, baseline average nighttime systolic BP and standard deviation were significant predictors of the systolic BP response in the denervation group only, allowing adequate responder classification of 70% of the patients. Our results show that denervation lowers ambulatory BP homogeneously over 24 hours in patients with resistant hypertension and suggest that nighttime systolic BP and variability are predictors of the BP response to denervation. URL: https://www.clinicaltrials.gov. Unique identifier: NCT01570777. © 2017 American Heart Association, Inc.

  10. The acute effects of twenty-four hours of sleep loss on the performance of national-caliber male collegiate weightlifters.

    Science.gov (United States)

    Blumert, Peter A; Crum, Aaron J; Ernsting, Mark; Volek, Jeff S; Hollander, Daniel B; Haff, Erin E; Haff, G Gregory

    2007-11-01

    Currently, the degree to which sleep loss influences weightlifting performance is unknown. This study compared the effects of 24 hours of sleep loss on weightlifting performance and subjective ratings of psychological states pre-exercise and postexercise in national-caliber male collegiate weightlifters. Nine males performed a maximal weightlifting protocol following 24 hours of sleep loss and a night of normal sleep. The subjects participated in a randomized, counterbalanced design with each sleep condition separated by 7 days. Testosterone and cortisol levels were quantified prior to, immediately after, and 1 hour after the resistance training session. Additionally, profile of mood states and subjective sleepiness were evaluated at the same time points. The resistance training protocol consisted of several sets of snatches, clean and jerks, and front squats. Performance was evaluated as individual exercise volume load, training intensity and overall workout volume load, and training intensity. During each training session the maximum weight lifted for the snatch, clean and jerk, and front squat were noted. No significant differences were found for any of the performance variables. A significant decrease following the sleep condition was noted for cortisol concentration immediately after and 1 hour postexercise. Vigor, fatigue, confusion, total mood disturbance, and sleepiness were all significantly altered by sleep loss. These data suggest that 24 hours of sleep loss has no adverse effects on weightlifting performance. If an athlete is in an acute period of sleep loss, as noticed by negative mood disturbances, it may be more beneficial to focus on the psychological (motivation) rather than the physiological aspect of the sport.

  11. Twenty-four-Hour Ambulatory Blood Pressure Monitor Heart Rate: A Potential Marker for Gestational Hypertension in at-Risk Women

    Science.gov (United States)

    Booker, Corenthian J.; Dodson, William C.; Kunselman, Allen R.; Repke, John T.; Legro, Richard S.

    2013-01-01

    We prospectively correlated the 24-hour ambulatory blood pressure measurements (ABPM) to conventional sphygmomanometer blood pressure measurements (CSM) in women at risk for gestational hypertensive disorders (GHTNDs) and identified predictive factors from ABPM for GHTND. We analyzed 73 women with ≥1 risk factor for developing a GHTND. Using both the CSM and ABPM, the systolic blood pressure, diastolic blood pressure, mean arterial pressure (MAP), and heart rate (HR) were measured for 24 hours during three periods (14 to 24 weeks; 24 to 32 weeks; and 33 weeks to delivery). Correlation between the CSM and ABPM lessened as pregnancy progressed. Seventeen (25%) of women developed a GHTND. MAP variability increased in the GHTND group versus those without a GHTND. The odds of developing a GHTND increased 1.5 times for every 1 beat per minute increase in the ABPM 24-hour HR at visit 1 and reversed by visit 3. In women at risk for a GHTND, CSM and ABPM correlate less well as pregnancy advances. HR changes in at-risk women may be a marker for the development of a GHTND and may reflect increased sympathetic activity and/or decreased baroreceptor sensitivity. PMID:22147639

  12. Twenty four-hour helpline access to expert management advice for food-allergy-triggered anaphylaxis in infants, children and young people: a pragmatic, randomized controlled trial.

    Science.gov (United States)

    Kelleher, M M; Dunngalvin, A; Sheikh, A; Cullinane, C; Fitzsimons, J; Hourihane, J O'B

    2013-12-01

    Anaphylaxis is a life-threatening emergency. If promptly administered, adrenaline is potentially life-saving. Many food-allergic-children/carers are unsure when to use their adrenaline autoinjectors, contributing to a low quality of life and worse outcomes in the setting of an acute allergic reaction. The aim of this study was to assess the effectiveness of 24-hour telephone access to specialist clinical advice on disease-specific quality of life. A pragmatic two-arm, parallel-group randomized control trial was conducted. Children/carers (<16 years) with food allergy, trained in adrenaline auto-injector use, were recruited from a hospital-based paediatric allergy clinic. Baseline disease-specific quality of life was ascertained using the validated Food-Allergy-Related Quality-of-Life Questionnaire (FAQLQ), either Parent Form, Child Form or Teenager Form depending on child's age. Participants were then centrally randomized for a 6-month period to 24-hour telephone specialist support line or to usual care. The primary outcome measure was a change in FAQL scores, at one and 6 months postrandomization, compared with baseline. The minimum clinically important difference (MCID) in score is 0.5. Fifty two children/carers were recruited. FAQL scores remained static in the control group across the three time points. Scores gradually improved in the intervention group, with a significant difference seen at 6 months (T1-T3 Mean difference = -1.5, (CI 0.87-2.25) P < 0.005] Follow-up questionnaires, 6 months after the intervention was removed, T4, showed sustained significant difference between the groups (control M = 3.0; intervention M = 1.1[t = -4.113, P < 0.05]). The 24-hour helpline improved food-allergy-specific quality of life in children. Six-month intervention support resulted in sustained benefits for at least a further 6 months. © 2013 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  13. The twenty-four/four hour ratio (T/F ratio) of Tc-99m MDP uptake in patients with bone metastases and degenerative changes

    International Nuclear Information System (INIS)

    Israel, O.; Kleinhaus, U.; Keren, R.; Frankel, A.; Front, D.

    1984-01-01

    Normal and metastatic bone differ in their histological structure. Normal bone is mainly lamellar while metastatic bone formation is made in a large part out of new woven bone. The woven bone has a much larger surface area than the more stable lamellar bone and it is lined with metabolically active osteoblasts. The crystalline structures in the woven bone are smaller and have a larger surface area available for absorption. Uptake of bone seeking radiopharmaceuticals continues in new woven bone longer than in the lamellar bone. Bone scintigraphy was performed in 89 patients at four hours and 24 hours using a digital camera. The lesion to non lesion (L/N) ratio was determined using the camera computer. The T/F ratio was calculated: T/F=((L/N)-24)/((L/N)-4). Three groups were investigated. In 15 patients with metastatic bone carcinoma, T/F ratio was 1.46 +- 0.4. In 47 patients with degenerative joint disease the T/F ratio was 1.05 +- 0.06. In 27 patients with treated metastatic bone carcinoma the T/F ratio was 1.12 +- 0.13. The T/F ratio is significantly (p<0.001) different in patients with metastases compared to patients with benign degenerative disease. Chemotherapeutic and hormonal treatment cause significant (p<0.001) reduction in the T/F ratio. The T/F ratio may have a potential in differentiating degenerative from neoplastic diseases and in the evaluation of patients with bone metastases undergoing treatment

  14. Monitorização eletrocardiográfica ambulatorial por 24-horas em cães com cardiomiopatia dilatada idiopática Twenty-four-hour ambulatory electrocardiographic monitoring in dogs with idiopathic dilated cardiomyopathy

    Directory of Open Access Journals (Sweden)

    F.L. Yamaki

    2007-12-01

    Full Text Available Caracterizou-se monitorização eletrocardiográfica ambulatorial por 24 horas (ou monitorização Holter em cães com cardiomiopatia dilatada idiopática, visando principalmente à detecção de arritmias ventriculares não detectadas pela eletrocardiografia convencional (de repouso. Para tanto, avaliaram-se 40 pacientes com diagnóstico de cardiomiopatia dilatada idiopática, por meio de exame físico e mensuração indireta da pressão arterial, além de exames eletrocardiográfico, ecocardiográfico, radiográfico de tórax e da monitorização Holter. Extra-sístoles ventriculares foram detectadas, por monitorização Holter, em 97,5% dos animais e taquicardia ventricular, em 45%. Não houve correlação entre o número de extra-sístoles ventriculares e a fração de encurtamento. Considerando as manifestações clínicas, apenas houve associação entre presença de taquicardia ventricular e histórico de síncopes. Conclui-se que a incidência de arritmias ventriculares em cães com cardiomiopatia dilatada idiopática é bastante alta, sendo a taquicardia ventricular relativamente freqüente, ocorrendo mais sob a forma não sustentada.This study aimed to characterize 24-hour ambulatory electrocardiographic monitoring (Holter monitoring in dogs with idiopathic dilated cardiomyopathy. Physical examination and indirect (Doppler blood pressure measurement, and also electrocardiography, thoracic radiography, echocardiography, and 24-hour ambulatory electrocardiographic exams were performed in 40 dogs with idiopathic dilated cardiomyopathy. Ventricular extrasystoles were detected in 97.5% of the animals, and ventricular tachycardia in 45%. No correlation between the number of ventricular extrasystoles and the shortening fraction was observed. Concerning the clinical symptoms, there was only association between the presence of ventricular tachycardia and past report of syncope. It was concluded that the incidence of ventricular arrhythmias is

  15. Efeitos agudos do exercício físico prolongado: avaliação após ultramaratona de 24 horas Acute effects of prolonged physical exercise: evaluation after a twenty-four-hour ultramarathon

    Directory of Open Access Journals (Sweden)

    Daniela Guinther Passaglia

    2012-01-01

    Full Text Available FUNDAMENTO: As consequências e os riscos do exercício físico contínuo por períodos prolongados não estão esclarecidos. OBJETIVO: Avaliar os efeitos do exercício prolongado em participantes de uma ultramaratona de 24 horas. MÉTODOS: Vinte corredores foram selecionados para avaliação, um dia antes e imediatamente após a prova em que os corredores devem percorrer a maior distância em 24 horas. Foram obtidos dados clínicos, laboratoriais e ecocardiográficos. RESULTADOS: A distância média percorrida foi de 140,3 ± 18,7 km. Os corredores apresentaram redução do peso corpóreo (p BACKGROUND: The consequences and risks of prolonged physical exercise are not well established. OBJECTIVE: To evaluate the effects of prolonged physical exercise on the participants of a 24-hour ultramarathon race. METHODS: Twenty male runners were selected for evaluation a day before and immediately after the race, where the athletes had to cover the most distance in 24 hours. Clinical, laboratory and echocardiographic data were obtained at both evaluations. RESULTS: Mean distance covered was 140.3 ± 18.7 km. Runners showed weight loss (p < 0.001 and decrease in systolic (p < 0.001 and diastolic (p = 0.004 blood pressure. Hematological changes were compatible with the physiological stress. Plasma levels of creatine phosphokinase strikingly increased post-race (163.4 ± 56.8 vs. 2978.4 ± 1921.9 U/L; p < 0.001 and was inversely correlated with distance covered: those who covered the longest distances showed the lowest CPK levels (Pearson r = 0.69, p = 0.02. After the race, 2 runners showed a slight increase in Troponin levels. One of them also had simultaneous decrease in left ventricular ejection fraction (coronary artery disease was subsequently ruled out. Basal echocardiography assessment had shown LV hypertrophy in one and increased left atrial volume in five runners. After the race, there was a decrease in E/A ratio (p < 0.01. CONCLUSION: Prolonged

  16. Efeitos agudos do exercício físico prolongado: avaliação após ultramaratona de 24 horas Acute effects of prolonged physical exercise: evaluation after a twenty-four-hour ultramarathon

    Directory of Open Access Journals (Sweden)

    Daniela Guinther Passaglia

    2013-01-01

    Full Text Available FUNDAMENTO: As consequências e os riscos do exercício físico contínuo por períodos prolongados não estão esclarecidos. OBJETIVO: Avaliar os efeitos do exercício prolongado em participantes de uma ultramaratona de 24 horas. MÉTODOS: Vinte corredores foram selecionados para avaliação, um dia antes e imediatamente após a prova em que os corredores devem percorrer a maior distância em 24 horas. Foram obtidos dados clínicos, laboratoriais e ecocardiográficos. RESULTADOS: A distância média percorrida foi de 140,3 ± 18,7 km. Os corredores apresentaram redução do peso corpóreo (p BACKGROUND: The consequences and risks of prolonged physical exercise are not well established. OBJECTIVE: To evaluate the effects of prolonged physical exercise on the participants of a 24-hour ultramarathon race. METHODS: Twenty male runners were selected for evaluation a day before and immediately after the race, where the athletes had to cover the most distance in 24 hours. Clinical, laboratory and echocardiographic data were obtained at both evaluations. RESULTS: Mean distance covered was 140.3 ± 18.7 km. Runners showed weight loss (p < 0.001 and decrease in systolic (p < 0.001 and diastolic (p = 0.004 blood pressure. Hematological changes were compatible with the physiological stress. Plasma levels of creatine phosphokinase strikingly increased post-race (163.4 ± 56.8 vs. 2978.4 ± 1921.9 U/L; p < 0.001 and was inversely correlated with distance covered: those who covered the longest distances showed the lowest CPK levels (Pearson r = 0.69, p = 0.02. After the race, 2 runners showed a slight increase in Troponin levels. One of them also had simultaneous decrease in left ventricular ejection fraction (coronary artery disease was subsequently ruled out. Basal echocardiography assessment had shown LV hypertrophy in one and increased left atrial volume in five runners. After the race, there was a decrease in E/A ratio (p < 0.01. CONCLUSION: Prolonged

  17. Reproducibility of twenty-four-hour finger arterial blood pressure, variability and systemic hemodynamics

    NARCIS (Netherlands)

    Voogel, A. J.; van Montfrans, G. A.

    1997-01-01

    At present, non-invasive continuous monitoring of finger arterial blood pressure by the volume-clamp technique is considered the best approach to obtain reliable assessments of beat-to-beat blood pressure. However, data on the reproducibility (accuracy and precision) of prolonged recordings and of

  18. Twenty-Four Hour Noninvasive Ventilation in Duchenne Muscular Dystrophy: A Safe Alternative to Tracheostomy

    Directory of Open Access Journals (Sweden)

    Douglas A McKim

    2013-01-01

    Full Text Available BACKGROUND: Almost all patients with Duchenne muscular dystrophy (DMD eventually develop respiratory failure. Once 24 h ventilation is required, either due to incomplete effectiveness of nocturnal noninvasive ventilation (NIV or bulbar weakness, it is common practice to recommend invasive tracheostomy ventilation; however, noninvasive daytime mouthpiece ventilation (MPV as an addition to nocturnal mask ventilation is also an alternative.

  19. Twenty-Four Hour Structure of Vigilance under Prolonged Sleep Deprivation: Relationship with Performance

    Science.gov (United States)

    1986-03-01

    experimental caotditios. In somle subjects its appearance resembled the periodic REM - NONREM cycle in uninterrupted sleep periods . lihe dynamics of IREM... periodic activation of sleep iriducing mechanisms. Sleepiness "gates" occur more frequently duri-Ig th•r first half of the day, with periodicity close to...the sleep FPErI- NREM cycles, than dur ing the second hIalif, when they are less frequent and 1ess pronaounced. fhe two most distinctive sleepi.ness

  20. Twenty-four hour urinary urea excretion and 9-year risk of hypertension: The PREVEND study

    NARCIS (Netherlands)

    Tielemans, S.M.A.J.; Geleijnse, J.M.; Baak, M.A. van; Engberink, M.F.; Brink, E.J.; Jong, P.E. de; Gansevoort, R.T.; Bakker, S.J.L.

    2013-01-01

    OBJECTIVES: It is not yet clear whether dietary protein could help maintaining a healthy blood pressure (BP). We investigated the association between total protein intake, estimated from 24-h urinary urea excretion, and incident hypertension in Dutch men and women. METHODS: We analyzed data of 3997

  1. Twenty-four-Hour Measurement of Intraocular Pressure in Guinea Pigs (Cavia porcellus).

    Science.gov (United States)

    Ansari-Mood, Maneli; Mehdi-Rajaei, Seyed; Sadjadi, Reza; Selk-Ghaffari, Masoud; Williams, David L

    2016-01-01

    The objective of this study was to measure intraocular pressure (IOP) in intact, healthy guinea pigs (15 male, 15 female) every 2 h for a 24-h period. First, IOP was measured by using rebound tonometry (RBT). After a 1-min rest period, 0.5% proparacaine ophthalmic solution, a topical anesthetic, was applied to both eyes; 4 min after anesthetic instillation, IOP was measured by using applanation tonometry (APT). The IOP was lower during the light period (0700 to 1900) than during the dark phase (2000 to 0600). The lowest IOP by both RBT and APT (3.68 and 13.37 mm Hg, respectively) occurred at 0700, whereas maximal IOP occurred at 2300 for RBT (8.12 mm Hg) but at 2100 for APT (20.62 mm Hg). No significant differences in IOP between the left and right eyes or between RBT and APT were noted. In addition, daily variations in the IOP of guinea pigs seem to be independent of sex and body weight. The results of this study may be beneficial in the diagnosis and observation of glaucoma in guinea pigs.

  2. Twenty-four-hour ambulatory electrocardiography characterization of heart rhythm in Vipera berus-envenomed dogs

    OpenAIRE

    Vestberg, Anna Rave; Tidholm, Anna; Ljungvall, Ingrid

    2017-01-01

    Background Vipera berus has a worldwide distribution and causes high morbidity in dogs annually. A complication to envenomation may be cardiac arrhythmias. The purpose of this study was to investigate the prevalence, types, and timing of arrhythmias, using 24-h ambulatory electrocardiography (24-AECG), in dogs bitten by V. berus in the first 24?32?h after envenomation. In addition, this study aimed to investigate if there were differences in selected clinical and hematological- and biochemica...

  3. Twenty-four-hour melatonin and cortisol plasma levels in relation to timing of cluster headache.

    Science.gov (United States)

    Leone, M; Lucini, V; D'Amico, D; Moschiano, F; Maltempo, C; Fraschini, F; Bussone, G

    1995-06-01

    The cyclic recurrence of cluster periods and the regular timing of headache occurrence in cluster headache (CH) induced us to study the circadian secretion of melatonin and cortisol in 12 patients with episodic CH, during a cluster period, and compare them with 7 age- and sex-matched healthy controls. Blood was sampled every 2 h for 24 h. All subjects were confined to a dark room from 22.00 to 08.00. Plasma melatonin levels were significantly reduced in CH patients (repeated measures ANOVA p cortisol mesor was significantly increased (p melatonin rhythm, and that 5/11 (45.5%) had no cortisol rhythm. Group analysis of cosinor revealed significantly rhythmicity of melatonin and cortisol secretion in both groups. In controls, the timing of melatonin and cortisol acrophase significantly correlated with each other, indicating that the biorhythm controllers for the secretion of these hormones were synchronized. Such correlation was not found in the CH patients; mesor, amplitude and acrophase of melatonin and cortisol did not correlate with duration of illness, duration of headache in course, or time since last headache attack.

  4. Twenty-four hour melatonin secretory pattern in men with idiopathic hemochromatosis.

    Science.gov (United States)

    Fevre-Montange, M; Estour, B; Abou-Samra, A B; Bajard, L; Tourniaire, J

    1983-01-01

    In idiopathic hemochromatosis, iron deposits in endocrine tissue can be associated with hormonal disorders including hypogonadism. We have studied the functional status of the pineal gland in this disease in relation to gonadotrophin levels and cortisol rhythm. Plasma melatonin, luteinizing hormone (LH) and cortisol concentrations were measured by radioimmunoassay every 20 min over a 24 hr period in nine men with idiopathic hemochromatosis aged 36 to 66 years. In six patients a circadian melatonin rhythm was present. The 24 hr means were in the normal range in three patients, and varied below the control values in two patients and above the control values in one patient. These variations seemed unrelated to gonadotrophin status. In the three other patients no plasma melatonin rhythm was observed; two patients with gonadotrophin insufficiency had low melatonin levels, and one with normal gonadotrophin function had high melatonin concentrations. In all cases, the plasma cortisol rhythm was normal. We concluded that the circadian melatonin rhythmicity can be disturbed in some cases of idiopathic hemochromatosis without relationship to the cortisol rhythm and associated endocrine disorders.

  5. Twenty-four-hour rhythms in relation to the natural photoperiod: a field study in humans.

    Science.gov (United States)

    Laakso, M L; Porkka-Heiskanen, T; Alila, A; Stenberg, D; Johansson, G

    1994-01-01

    The daily rhythms of salivary melatonin, salivary cortisol, and axillary body temperature were measured in nine healthy volunteers in midsummer, around the autumn equinox, and in midwinter, at a latitude of 60 degrees N. The aim was to find out whether these rhythms were dependent on variations of the natural daylength. The samples were collected every 2 hr during 24-hr periods in everyday conditions. The individual rhythms were characterized with the acrophase estimates of the best-fitting cosine curve models and with the half-rise and half-decline times calculated from the raw data. The melatonin and cortisol rhythms were delayed significantly (about 1 hr) in midwinter as compared with summer and autumn. The most advanced rhythms were found in autumn. The shifts of the melatonin and cortisol rhythms could be explained as a result of the changes of natural illumination. The overt temperature rhythms did not differ significantly among the sampling months. The lack of seasonal patterns in temperature rhythms probably primarily reflected the socially determined rest-activity cycles of the subjects.

  6. Twenty-four hour radioactive iodine uptake in 35 patients with amiodarone associated thyrotoxicosis

    Energy Technology Data Exchange (ETDEWEB)

    Martino, E.; Aghini-Lombardi, F.; Lippi, F.; Baschieri, L.; Safran, M.; Braverman, L.E.; Pinchera, A.

    1985-12-01

    Amiodarone associated thyrotoxicosis (AAT) occurs in approximately 10% of patients treated with this iodine rich drug in areas of mild iodine deficiency. The thyroid radioactive iodine uptake (RAIU) is usually undetectable or very low in iodine-induced thyrotoxicosis. In the present study, 35 patients with AAT were evaluated. Twelve patients had no thyroid abnormalities by physical exam and all had 24-hr RAIU less than or equal to 4%. In contrast, nine of 11 patients with AAT and diffuse goiters and eight of 12 patients with AAT and nodular goiters had RAIU values greater than 8%. In patients with AAT and goiter it appears possible that the thyroid fails to adapt normally to the excess iodide load, resulting in an inappropriately high RAIU in the presence of excess plasma iodine.

  7. Recovery of bacteria from broiler carcasses rinsed zero and twenty-four hours after immersion chilling.

    Science.gov (United States)

    Cason, J A; Berrang, M E; Smith, D P

    2006-02-01

    Microbiological sampling of processed broiler carcasses often relies on the technique of whole-carcass rinsing; however, the rinse sampling is sometimes done immediately after immersion chilling and sometimes as long as 24 h after immersion chilling. To test whether carcass rinses done immediately after chilling can be compared with rinses 24 h after chilling, 20 whole broiler carcasses exiting the chiller of a broiler processing plant were sampled on each of 3 d. All carcasses were bagged aseptically and rinsed for 1 min in 400 mL of sterile water. Recovered rinse liquid was poured into a sterile container, and rinsed carcasses were placed in clean plastic bags; all materials were held overnight at 4 degrees C. On the following day, all carcasses were rinsed again in 400 mL of sterile water as before, and all rinse samples were cultured by standard methods to enumerate coliforms, Escherichia coli, and Campylobacter and to determine incidence of Salmonella. Statistical analysis used paired comparisons between the same carcasses rinsed at 0 and 24 h after chilling; numbers of bacteria were expressed as log cfu/mL of rinse. In 2 of 3 replications, significantly higher numbers of coliforms and E. coli were found in the rinse samples taken immediately after chilling vs. rinse samples done at 24 h. There were no differences in numbers of Campylobacter or incidence of Salmonella between rinses taken at 0 and 24 h. More study is required to determine whether whole-carcass rinse samples performed at 0 and 24 h after chilling are microbiologically equivalent.

  8. Genetic parameters and factors influencing survival to twenty-four hours after birth in Danish meat sheep breeds.

    Science.gov (United States)

    Maxa, J; Sharifi, A R; Pedersen, J; Gauly, M; Simianer, H; Norberg, E

    2009-06-01

    In this study, influential factors and (co)variance components for survival to 24 h after birth were determined and estimated for Texel, Shropshire, and Oxford Down, the most common sheep breeds in Denmark. Data from 1992 to 2006 containing 138,813 survival records were extracted from the sheep recording database at the Danish Agricultural Advisory Service. Estimation of (co)variance components was carried out using univariate animal models, applying logistic link functions. The logistic functions were also used for estimation of fixed effects. Both direct and maternal additive genetic effects, as well as common litter effects, were included in the models. The mean survival to 24 h after birth was 92.5, 91.7, and 88.5% for Texel, Shropshire, and Oxford Down, respectively. There was a curvilinear relationship between survival to 24 h after birth and birth weight, with survival less for light and heavy lambs. Male lambs, as well as lambs from ewes in the first parity or with difficult lambing, had the least survival to 24 h after birth. Survival to 24 h after birth was greater in twin-born Texel and Shropshire lambs compared with singletons and vice versa in Oxford Down. Estimates of direct heritability were in the range from 0.05 to 0.07. Maternal heritability estimates were slightly greater (0.06 and 0.07) than direct heritabilities in Texel and Shropshire and less (0.04) in Oxford Down. The estimated genetic correlations between direct and maternal effects for survival to 24 h after birth were negative, which will make breeding for this trait more difficult. However, on the basis of estimated genetic parameters, it can be concluded that it is possible to improve survival to 24 h after birth in meat sheep breeds by accounting for both direct and maternal genetic effects in breeding programs.

  9. Twenty-Four Hour Non-Invasive Ambulatory Blood Pressure and Heart Rate Monitoring in Parkinson’s Disease

    Science.gov (United States)

    Stuebner, Eva; Vichayanrat, Ekawat; Low, David A.; Mathias, Christopher J.; Isenmann, Stefan; Haensch, Carl-Albrecht

    2013-01-01

    Non-motor symptoms are now commonly recognized in Parkinson’s disease (PD) and can include dysautonomia. Impairment of cardiovascular autonomic function can occur at any stage of PD but is typically prevalent in advanced stages or related to (anti-Parkinsonian) drugs and can result in atypical blood pressure (BP) readings and related symptoms such as orthostatic hypotension (OH) and supine hypertension. OH is usually diagnosed with a head-up-tilt test (HUT) or an (active) standing test (also known as Schellong test) in the laboratory, but 24 h ambulatory blood pressure monitoring (ABPM) in a home setting may have several advantages, such as providing an overview of symptoms in daily life alongside pathophysiology as well as assessment of treatment interventions. This, however, is only possible if ABPM is administrated correctly and an autonomic protocol (including a diary) is followed which will be discussed in this review. A 24-h ABPM does not only allow the detection of OH, if it is present, but also the assessment of cardiovascular autonomic dysfunction during and after various daily stimuli, such as postprandial and alcohol dependent hypotension, as well as exercise and drug induced hypotension. Furthermore, information about the circadian rhythm of BP and heart rate (HR) can be obtained and establish whether or not a patient has a fall of BP at night (i.e., “dipper” vs. non-“dipper”). The information about nocturnal BP may also allow the investigation or detection of disorders such as sleep dysfunction, nocturnal movement disorders, and obstructive sleep apnea, which are common in PD. Additionally, a 24-h ABPM should be conducted to examine the effectiveness of OH therapy. This review will outline the methodology of 24 h ABPM in PD, summarize findings of such studies in PD, and briefly consider common daily stimuli that might affect 24 h ABPM. PMID:23720648

  10. Phosphorus loss to runoff water twenty-four hours after application of liquid swine manure or fertilizer.

    Science.gov (United States)

    Tabbara, Hadi

    2003-01-01

    Phosphorus (P) added to soil from fertilizer or manure application could pose a threat to water quality due to its role in eutrophication of fresh water resources. Incorporating such amendments into the soil is an established best management practice (BMP) for reducing soluble P losses in runoff water, but could also lead to higher erosion. The objective of this study was to test whether incorporation of manure or fertilizer 24 h before an intense rain could also reduce sediment-bound and total phosphorus (TP) losses in runoff. A rainfall simulation study was conducted on field plots (sandy loam with 6-7% slope, little surface residue, recently cultivated) that received two application rates of liquid swine manure or liquid ammonium polyphosphate fertilizer, using either surface-broadcast or incorporated methods of application. Incorporation increased the total suspended solids (TSS) concentrations in runoff but mass losses were not affected. Incorporation also reduced flow-weighted concentrations and losses of dissolved reactive phosphorus (DRP) and TP by as much as 30 to 60% depending on source (fertilizer vs. manure) and application rate. Phosphorus is moved below the mixing zone of interaction on incorporation, and thus the effect of the amount and availability of P in this zone is more important than cultivation on subsequent P losses in runoff. Incorporating manure or fertilizer in areas of intense erosive rain, recent extensive tillage, and with little or no surface residue is therefore a best management practice that should be adhered to in order to minimize contamination of surface water. Results also show comparatively lower P losses from manure than fertilizer.

  11. Twenty-four-hour urine constituents in stone formers: A study from the northeast part of Peninsular Malaysia

    Directory of Open Access Journals (Sweden)

    N S Hussein

    2013-01-01

    Full Text Available Urolithiasis is a common disease with increasing incidence and prevalence world-wide, probably more common in industrialized countries. The metabolic evaluation of 24-h urine collection has been considered as part of the management of urinary stone patients. The aim of this study was to evaluate the 24-h urine constituents in stone formers and its relation to demographic data in the northeast part of Peninsular Malaysia. One hundred and six patients were recruited in this study from two hospitals in the same geographical region; 96 patients fulfilled the inclusion criteria and an informed consent was obtained from all subjects. The 24-h urine was collected in sterile bottles with a preservative agent and calcium, oxalate, citrate, uric acid, magnesium and phosphate were tested using commercial kits on a Roche Hitachi 912 chemistry analyzer. The age (mean ± SD of 96 patients was 56.45 ± 13.43 years and 82.3% of the patients were male while 17.7% were female. The 24-h urine abnormalities were hypercalciuria (14.5%, hyperoxaluria (61.4%, hypocitraturia (57.2%, hyperuricouria (19.7%, hypomagnesuria (59.3% and hyperphosphaturia (12.5%. Hyperoxaluria (61.4% was the most common abnormality detected during the analysis of 24-h urine constituents in contradiction to industrial countries, where hypercalciuria was the most common finding. The high frequencies of hypomagnesuria and hypocitraturia reflect the important role of magnesium and citrate in stone formation and their prophylactic role in the treatment of urinary stone disease in the given population.

  12. Twenty-four-hour blood pressure profile, orthostatic hypotension, and cardiac dysautonomia in elderly type 2 diabetic hypertensive patients.

    Science.gov (United States)

    Costa, Alfredo; Bosone, Daniele; Ramusino, Matteo Cotta; Ghiotto, Natascia; Guaschino, Elena; Zoppi, Annalisa; D'Angelo, Angela; Fogari, Roberto

    2016-12-01

    The aim of this study was to evaluate the relationship between orthostatic hypotension (OH), defined as a decrease in systolic blood pressure (SBP) ≥20 mmHg and/or a decrease in diastolic blood pressure (DBP) ≥10 mmHg, and 24-h ambulatory BP profile in elderly hypertensive type 2 diabetic patients. After a 2-week antihypertensive wash-out period, 200 hypertensive well-controlled diabetic outpatients, aged 65-75 years, underwent a clinical examination, including BP measurements, ECG, 24-h ABP monitoring (ABPM), an orthostatic test, and three tests for cardiovascular autonomic function assessment [deep breathing, heart rate (HR) variability, resting HR]. According to their nighttime BP profile, patients were divided into three groups: dippers (n = 86) (BP fall during nighttime ≥10 %), non-dippers (n = 80) (BP fall during nighttime 0-10 %), and reverse dippers (n = 34) (nighttime BP > daytime BP). Orthostatic test produced a significantly greater orthostatic SBP fall in dippers and even more in reverse dippers. In these latter, a significant fall was observed also in DBP. Prevalence of OH was 9.3 % in dippers, 30 % in non-dippers, and 79.4 % in reverse dippers. In elderly hypertensive type 2 diabetics, a blunted nocturnal BP fall is associated with OH and autonomic dysfunction. These data suggest that ABPM should be performed in the assessment of hypertensive diabetic patients in whom the cardiovascular dysautonomia is suspected or the signs of it are present (such as OH).

  13. The Twenty-four Hour Workday: Proceedings of a Symposium on Variations in Work-Sleep Schedules

    Science.gov (United States)

    1980-10-01

    materialistic and idealistic values b. Morning-evening-type assesent c. Biorhythmic functions assessment d. Sleep-quality assessment e. Health state...populations such as teenagers /students); the use of appropriately validated dependent variables (e.g. responses in routine simulations are not

  14. Twenty-four-hour pH measurements in morbid obesity: effects of massive overweight, weight loss and gastric distension

    NARCIS (Netherlands)

    Mathus-Vliegen, L. M.; Tytgat, G. N.

    1996-01-01

    To investigate the influence of untreated (super)morbid obesity and the effects of massive weight loss and chronic gastric distension on gastro-oesophageal reflux. Seventeen young morbidly obese patients (32 years old; body weight 166.5 kg; body mass index 55 kg/m2) underwent 24-h ambulatory

  15. Twenty-four-hour exposure to altered blood flow modifies endothelial Ca2+-activated K+ channels in rat mesenteric arteries

    DEFF Research Database (Denmark)

    Hilgers, Rob H P; Janssen, Ger M J; Fazzi, Gregorio E

    2010-01-01

    remodeling. In rats, mesenteric arteries were exposed to increased [+90%, high flow (HF)] or reduced blood flow [-90%, low flow (LF)] and analyzed 24 h later. There were no detectable changes in arterial structure or in expression level of endothelial nitric-oxide synthase, SK3, or IK1. Arterial relaxing......We tested the hypothesis that changes in arterial blood flow modify the function of endothelial Ca2+-activated K+ channels [calcium-activated K+ channel (K(Ca)), small-conductance calcium-activated K+ channel (SK3), and intermediate calcium-activated K+ channel (IK1)] before arterial structural...... arteries, the balance between the NO/prostanoid versus EDHF response was unaltered. However, the contribution of IK1 to the EDHF response was enhanced, as indicated by a larger effect of TRAM-34 and a larger residual NS309-induced relaxation in the presence of UCL 1684. Reduction of blood flow selectively...

  16. [Study on medical records of acupuncture-moxibustion in The Twenty-four Histories].

    Science.gov (United States)

    Huang, Kai-Wen

    2012-03-01

    Through the combination of manual retrieval and computerized retrieval, medical records of acupuncture-moxibustion in The Twenty-Four Histories were collected. Acupuncture cases from the Spring and Autumn Period (770-476 B.C.) to the end of the Ming Dynasty (1368-1644)were retrieved. From the medical records of acupuncture-moxibustion in Chinese official history books, it can be found that systematic diseases or emergent and severe diseases were already treated by physicians with the combination of acupuncture and medicine as early as in the Spring and Autumn Period as well as the Warring States Period(475-221 B.C.). CANG Gong, a famous physician of the Western Han Dynasty (206 B. C.-A. D. 24), cured diseases by selecting points along the running courses of meridians where the illness inhabited, which indicates that the theory of meridians and collaterals was served as a guide for clinical practice as early as in the Western Han Dynasty. Blood letting therapy, which has surprising effect, was often adopted by physicians of various historical periods to treat diseases. And treatment of diseases with single point was approved to be easy and effective.

  17. Twenty-four new species of Polycentropus (Trichoptera, Polycentropodidae from Brazil

    Directory of Open Access Journals (Sweden)

    Steven Hamilton

    2011-01-01

    Full Text Available Twenty-four new species of the caddisfly genus Polycentropus (Insecta: Trichoptera: Polycentropodidae occurring in Brazil are diagnosed, described, and the male genitalia of each are illustrated. Eighteen of the new species are placed in the Polycentropus jorgenseni species complex of the Polycentropus gertschi group of New World Polycentropus sensu lato. Furthermore, 6 new species within the P. gertschi group (P. ancistrus, sp. n., P. boraceia, sp. n., P. carioca, sp. n., P. froehlichi, sp. n., P. galharada, sp. n., and P. graciosa, sp. n. are placed in an informal diagnostic cluster of species with P. urubici Holzenthal and Almeida. Ten of the other P. gertschi group species form a second cluster of diagnostically similar species, the Polycentropus soniae cluster (P. caaete, sp. n., P. carolae, sp. n., P. cheliceratus, sp. n., P. fluminensis, sp. n., P. itatiaia, sp. n., P. minero, sp. n., P. santateresae, sp. n., P. soniae, sp. n., P. tripui, sp. n., and P. virginiae, sp. n.. Two of the remaining 8 new species are included in the P. jorgenseni species complex (P. cipoensis, sp. n. and P. verruculus, sp. n., while the remaining 6 are unique and cannot be placed in one of the groups at this time (P. acinaciformis, sp. n., P. amphirhamphus, sp. n., P. cachoeira, sp. n., P. inusitatus, sp. n., P. paprockii, sp. n. and P. rosalysae, sp. n..

  18. Twenty-four new species of Polycentropus (Trichoptera, Polycentropodidae) from Brazil

    Science.gov (United States)

    Hamilton, Steven W.; Holzenthal, Ralph W.

    2011-01-01

    Abstract Twenty-four new species of the caddisfly genus Polycentropus (Insecta: Trichoptera: Polycentropodidae) occurring in Brazil are diagnosed, described, and the male genitalia of each are illustrated. Eighteen of the new species are placed in the Polycentropus jorgenseni species complex of the Polycentropus gertschi group of New World Polycentropus sensu lato. Furthermore, 6 new species within the Polycentropus gertschi group (Polycentropus ancistrus sp. n., Polycentropus boraceia sp. n., Polycentropus carioca sp. n., Polycentropus froehlichi sp. n., Polycentropus galharada sp. n., and Polycentropus graciosa sp. n.) are placed in an informal diagnostic cluster of species with Polycentropus urubici Holzenthal and Almeida. Ten of the other Polycentropus gertschi group species form a second cluster of diagnostically similar species, the Polycentropus soniae cluster (Polycentropus caaete sp. n., Polycentropus carolae sp. n., Polycentropus cheliceratus sp. n., Polycentropus fluminensis sp. n., Polycentropus itatiaia sp. n., Polycentropus minero sp. n., Polycentropus santateresae sp. n., Polycentropus soniae sp. n., Polycentropus tripui sp. n., and Polycentropus virginiae sp. n.). Two of the remaining 8 new species are included in the Polycentropus jorgenseni species complex (Polycentropus cipoensis sp. n. and Polycentropus verruculus sp. n.), while the remaining 6 are unique and cannot be placed in one of the groups at this time (Polycentropus acinaciformis sp. n., Polycentropus amphirhamphus sp. n., Polycentropus cachoeira sp. n., Polycentropus inusitatus sp. n., Polycentropus paprockii sp. n. and Polycentropus rosalysae sp. n.). PMID:21594145

  19. A Study on Watt-hour Meter Data Acquisition Method Based on RFID Technology

    Science.gov (United States)

    Chen, Xiangqun; Huang, Rui; Shen, Liman; Chen, Hao; Xiong, Dezhi; Xiao, Xiangqi; Liu, Mouhai; Xu, Renheng

    2018-03-01

    Considering that traditional watt-hour meter data acquisition was subjected to the influence of distance and occlusion, a watt-hour meter data acquisition method based on RFID technology was proposed in this paper. In detail, RFID electronic tag was embedded in the watt-hour meter to identify the meter and record electric energy information, which made RFID based wireless data acquisition for watt-hour meter come true. Eventually, overall lifecycle management of watt-hour meter is realized.

  20. Twenty four year time trends in fats and cholesterol intake by adolescents. Warsaw Adolescents Study

    Directory of Open Access Journals (Sweden)

    Charzewska Jadwiga

    2015-06-01

    Full Text Available The objective of this study was to determine time trends (1982–2006 in total fat intake and changes in fatty acid structure intake in adolescents from Warsaw in view of increasing prevalence of obesity. Data come from four successive surveys randomly selected samples of adolescents (aged 11–15 years old, from Warsaw region. In total 9747 pupils have been examined, with response rate varying from 55% to 87% depending on year. Surveys were done always in the spring season of the year. Food intake was assessed by using 24 hours recall method of consumption by the pupils all products, including enriched, dishes and beverages as well as diet supplements, in the last 24 hours preceding the examination. The content of energy and nutrients was calculated by means of own computer softwares (DIET 2 and 4, taking into account successive revisions of the tables of food composition and nutritional values, as well as current Polish DRI. A significant decreasing trend was found in intake of total fat, of saturated fatty acids (SFA and cholesterol. The percentage of energy from total fat, also decreased both in boys (to 35,1% and girls (to 33,7%, what failed to reach the desired level below 30% of energy from fat which is recommended. Also significant decrease of SFA consumption was not satisfactory enough to approach the values <10% of energy recommended as was from 13% to 15%. Decreasing trends in fat intake was not in accordance with the trend in obesity prevalence in the adolescents as average BMI is going up. To stabilize the health-oriented changes especially in the diets of adolescents, further activity is desired from professionals working with prevention of adolescents obesity.

  1. The Effects of Permanent Technology Shocks on Labour Productivity and Hours in the RBC Model

    OpenAIRE

    Lindé, Jesper

    2005-01-01

    Recent work on the effects of permanent technology shocks argue that the basic RBC model cannot account for a negative correlation between hours worked and labour productivity. In this Paper, I show that this conjecture is not necessarily correct. In the basic RBC model, I find that hours worked fall and labour productivity rises after a positive permanent technology shock once one allows for the possibility that the process for the permanent technology shock is persistent in growth rates. A ...

  2. Chapter Twenty Four

    African Journals Online (AJOL)

    User

    ROMANTICISM AS A MEETING POINT BETWEEN. THE NIGERIAN POET AND SCULPTOR. Clifford Ezekwe Nwanna. Abstract. There is an inextricable relationship between Visual and Literary Arts, especially Poetry. This relationship was very popular during the Romantic period in Europe; from the late eighteenth to the.

  3. Chapter Twenty Four

    African Journals Online (AJOL)

    User

    a minstrel” “The voice of the Night masquerade” and many other articles and scholarly prints brought the ... very fragile and it breaks too soon” and that was the case with Oheato who died a few months after receiving ... Cliff Nwanna's grope for stability had swiftness and to give voice to his eyes led him to the. University of ...

  4. Surgery Hours for All: An Adoption of Live Classroom Technology for Enhanced Accessibility

    OpenAIRE

    Osama Khan

    2010-01-01

    Adobe Connect Pro was used as a virtual learning platform to replace surgery hours in a module titled Real Estate Finance and Investment. This research explores different aspects of this technology, how it was implemented in the above mentioned module, and the critical feedback we received from the students. The paper also analyses its potential in different academic context and to facilitate blended learning.

  5. Diurnal Variation and Twenty-Four Hour Sleep Deprivation Do Not Alter Supine Heart Rate Variability in Healthy Male Young Adults.

    Directory of Open Access Journals (Sweden)

    Daniel S Quintana

    Full Text Available Heart rate variability (HRV has become an increasingly popular index of cardiac autonomic control in the biobehavioral sciences due to its relationship with mental illness and cognitive traits. However, the intraindividual stability of HRV in response to sleep and diurnal disturbances, which are commonly reported in mental illness, and its relationship with executive function are not well understood. Here, in 40 healthy adult males we calculated high frequency HRV-an index of parasympathetic nervous system (PNS activity-using pulse oximetry during brain imaging, and assessed attentional and executive function performance in a subsequent behavioral test session at three time points: morning, evening, and the following morning. Twenty participants were randomly selected for total sleep deprivation whereas the other 20 participants slept as normal. Sleep deprivation and morning-to-night variation did not influence high frequency HRV at either a group or individual level; however, sleep deprivation abolished the relationship between orienting attention performance and HRV. We conclude that a day of wake and a night of laboratory-induced sleep deprivation do not alter supine high frequency HRV in young healthy male adults.

  6. Twenty-four-hour plasma tryptophan concentrations and ratios are below normal in obese subjects and are not normalized by substantial weight reduction

    DEFF Research Database (Denmark)

    Breum, Leif; Rasmussen, Michael H; Hilsted, Jannik

    2003-01-01

    BACKGROUND: Plasma tryptophan concentrations and the ratio of tryptophan to other large neutral amino acids (plasma tryptophan ratio) are reportedly low in obese subjects. The plasma tryptophan ratio predicts brain tryptophan uptake and serotonin production. If this ratio is low in obese subjects...... subjects. Blood samples were drawn frequently throughout the 24-h period. An insulin tolerance test was also used to determine whether weight loss altered the ability of insulin to modify plasma concentrations of tryptophan and of the other large neutral amino acids. RESULTS: Plasma tryptophan...... concentrations and ratios in obese subjects were low at all times; these effects persisted after weight reduction. Plasma concentrations of all the large neutral amino acids decreased during insulin infusion in all the groups. CONCLUSIONS: The low 24-h plasma tryptophan ratios in obese and formerly obese...

  7. Twenty-four-hour changes of S-adenosylmethionine, S-adenosylhomocysteine adenosine and their metabolizing enzymes in rat liver; possible physiological significance in phospholipid methylation.

    Science.gov (United States)

    Chagoya de Sánchez, V; Hernández-Muñoz, R; Sánchez, L; Vidrio, S; Yáñez, L; Suárez, J

    1991-01-01

    1. The metabolic control of adenosine concentration in the rat liver through the 24-hr cycle is related to the activity of adenosine-metabolizing enzymes [5'-nucleotidase (5'N), adenosine deaminase (A.D.), adenosine kinase (A.K.) and S-adenosylhomocysteine hydrolase (SAH-H)]. 2. Two peaks of adenosine were observed, one at 12:00 hr caused by high activity of 5'N and SAH-H, and the other at 02:00 hr, caused by a decrease in purine catabolism and purine utilization, low activity of SAH-H and de novo purine formation. 3. The similarity of the adenosine and S-adenosylmethionine (SAM) profiles through the 24-hr cycle suggests a role of adenosine in transmethylation reactions, because, during the night (02:00 hr), the metabolic conditions favor the formation and accumulation of S-adenosylhomocysteine (SAH), with consequent inhibition of transmethylation reactions. 4. In the 24-hr variation of phosphatidylcholine (PC) and phosphatidylethanolamine (PE), the lowest ratio of PC/PE was observed at 24:00-02:00 hr when SAH concentration is high, whereas the highest PC/PE ratio occurs at the same time as one of the SAM/SAH ratio maxima.

  8. Twenty four hour insulin infusion impairs the ability of plasma from healthy subjects and Type 2 diabetic patients to promote cellular cholesterol efflux

    NARCIS (Netherlands)

    Dullaart, RPF; van Tol, A

    Removal of cholesterol from peripheral cells by high density lipoproteins (HDL) is regarded as an important defence mechanism against atherosclerosis development. PLTP is involved in the generation of pre beta -HDL that can act as initial accepters of cellular cholesterol. Exogenous

  9. The period of the day affects the twenty-four hour blood pressure response to an acute combined exercise session in Brazilian jiu jitsu athletes

    Directory of Open Access Journals (Sweden)

    Rafaello Pinheiro Mazzoccante

    2015-09-01

    Full Text Available AbstractThe purpose of this study was to compare the effect of a combined exercise session performed at different periods of the day on the 24h blood pressure (BP response. Anaerobic threshold (AT and 12 repetition maximum (12RM tests were evaluated in nine Brazilian jiu-jitsu athletes (male (22±3.7 y; 176±5.0 cm; 73.4±9.7 kg; 6.8±2.1 % body fat. Four experimental sessions were performed: resistance exercise followed by aerobic exercise [Morning (MornS and Afternoon (AfternS] and Control (C [Morning and Afternoon]. The morning sessions were conducted at 09:00 a.m. and the afternoon sessions were conducted at 3:00 p.m. The resistance exercise consisted of three sets at 90% of a 12RM for six resistance exercises. The aerobic exercise consisted of 15min at 90% of the AT. Blood pressure (BP was measured before, during and 1h (Microlife(r BP3A1C after the performance of exercises in laboratory, and then during daily activities for the succeeding 23h by ambulatory BP monitoring (Dyna-MAPA(r. Analysis of the area under the curve (AUC indicated significant reductions in blood pressure parameters at various time points during the 24h monitoring period. For systolic BP (SBP, significantly lower values were shown following the morning session versus the control (MornS: 1756.2±100.8 vs. C: 1818.2±84.3 mmHg*15h; p < .05 and total-24h (MornS: 2695.8±143.3 vs. C: 2784.1±143.2 mmHg*24h; p < .05. The total-24h mean BP (MAP was also significantly lower following the morning session versus the control (MornS: 2015.7±121.2 vs. C: 2087.3±153.8 mmHg*24h; p < .05. There were significant differences in the sleeping AUC of SBP (AfternS: 883.6±27.0 vs. C: 965.2±67.9 mmHg*9h; p< .05, diastolic BP (DBP (AfternS: 481.4±30.9 vs. MornS: 552.9±34.2 and C: 562.1±52.3 mmHg*9h; p < .01 and MBP (AfternS: 651.9±22.4 vs. MornS: 708.7±43.1 and C: 726.9±64.7 mmHg*9h; p < .01. The combined exercise performed at different periods of the day contributed distinctly to the reduction of BP. The morning session was important in reducing SBP and MBP in the total-24h monitoring, while the afternoon session reduced SBP, DBP and MBP during sleeping in jiu-Jitsu athletes.

  10. Twenty-Four-Hour Real-Time Continuous Monitoring of Cerebral Edema in Rabbits Based on a Noninvasive and Noncontact System of Magnetic Induction

    Science.gov (United States)

    Li, Gen; Ma, Ke; Sun, Jian; Jin, Gui; Qin, Mingxin; Feng, Hua

    2017-01-01

    Cerebral edema is a common disease, secondary to craniocerebral injury, and real-time continuous monitoring of cerebral edema is crucial for treating patients after traumatic brain injury. This work established a noninvasive and noncontact system by monitoring the magnetic induction phase shift (MIPS) which is associated with brain tissue conductivity. Sixteen rabbits (experimental group n = 10, control group, n = 6) were used to perform a 24 h MIPS and intracranial pressure (ICP) simultaneously monitored experimental study. For the experimental group, after the establishment of epidural freeze-induced cerebral edema models, the MIPS presented a downward trend within 24 h, with a change magnitude of −13.1121 ± 2.3953°; the ICP presented an upward trend within 24 h, with a change magnitude of 12–41 mmHg. The ICP was negatively correlated with the MIPS. In the control group, the MIPS change amplitude was −0.87795 ± 1.5146 without obvious changes; the ICP fluctuated only slightly at the initial value of 12 mmHg. MIPS had a more sensitive performance than ICP in the early stage of cerebral edema. These results showed that this system is basically capable of monitoring gradual increases in the cerebral edema solution volume. To some extent, the MIPS has the potential to reflect the ICP changes. PMID:28282851

  11. Twenty-four hour total and dietary fat oxidation in lean, obese and reduced-obese adults with and without a bout of exercise.

    Directory of Open Access Journals (Sweden)

    Audrey Bergouignan

    Full Text Available It has been hypothesized that obese and reduced-obese individuals have decreased oxidative capacity, which contributes to weight gain and regain. Recent data have challenged this concept.To determine (1 whether total and dietary fat oxidation are decreased in obese and reduced-obese adults compared to lean but increase in response to an acute exercise bout and (2 whether regular physical activity attenuates these metabolic alterations.We measured 24-hr total (whole-room calorimetry and dietary fat (14C-oleate oxidation in Sedentary Lean (BMI = 21.5±1.6; n = 10, Sedentary Obese (BMI = 33.6±2.5; n = 9, Sedentary Reduced-Obese (RED-SED; BMI = 26.9±3.7; n = 7 and in Physically Active Reduced-Obese (RED-EX; BMI = 27.3±2.8; n = 12 men and women with or without an acute exercise bout where energy expended during exercise was not replaced.Although Red-SED and Red-EX had a similar level of fatness, aerobic capacity and metabolic profiles were better in Red-EX only compared to Obese subjects. No significant between-group differences were seen in 24-hr respiratory quotient (RQ, Lean: 0.831±0.044, Obese: 0.852±0.023, Red-SED: 0.864±0.037, Red-EX: 0.842±0.039, total and dietary fat oxidation. A single bout of exercise increased total (+27.8%, p<0.0001 and dietary (+6.6%, p = 0.048 fat oxidation across groups. Although exercise did not impact RQ during the day, it decreased RQ during sleep (p = 0.01 in all groups. Red-EX oxidized more fat overnight than Red-SED subjects under both resting (p = 0.036 and negative energy balance (p = 0.003 conditions, even after adjustment for fat-free mass.Obese and reduced-obese individuals oxidize as much fat as lean both under eucaloric and negative energy balance conditions, which does not support the hypothesis of reduced oxidative capacity in these groups. Reduced-obese individuals who exercise regularly have markers of metabolic health similar to those seen in lean adults. Both the acute and chronic effects of exercise were primarily observed at night suggesting an important role of sleep in the regulation of lipid metabolism.

  12. Breastfeeding in the first hour of life and modern technology: prevalence and limiting factors

    OpenAIRE

    Maria Cristina Pillegi; Adriana Policastro; Sulim Abramovici; Eduardo Cordioli; Alice D’Agostini Deutsch

    2008-01-01

    Objective: To identify the prevalence and limiting factors ofbreastfeeding in the first hour of life at the Maternity Center of HospitalIsraelita Albert Einstein, where the predominant model of childbirthcare is largely based on the use of modern technology. Methods: Aretrospective study with quantitative analysis in a middle and upperclass population of different cultural backgrounds. Data were obtainedfrom the delivery record book in a total of 12,350 births from January2004 to December 200...

  13. Breastfeeding in the first hour of life and modern technology: prevalence and limiting factors

    Directory of Open Access Journals (Sweden)

    Maria Cristina Pillegi

    2008-12-01

    Full Text Available Objective: To identify the prevalence and limiting factors ofbreastfeeding in the first hour of life at the Maternity Center of HospitalIsraelita Albert Einstein, where the predominant model of childbirthcare is largely based on the use of modern technology. Methods: Aretrospective study with quantitative analysis in a middle and upperclass population of different cultural backgrounds. Data were obtainedfrom the delivery record book in a total of 12,350 births from January2004 to December 2007. Results: Of 12,350 births, 3,277 (26.9%were excluded because of contraindications to breastfeeding in thefirst hour of life such as: prematurity, respiratory distress, adverseeffects of anesthesia, obstetric conditions, congenital malformation,and others. Other 180 cases were excluded due to missing data.Of the remaining 8,893 cases, 2,279 (18.7% were not breastfedbecause of limiting factors that require improvement actions: highdelivery turnover, patient refusal, medical refusal, tiredness due toprolonged labor, loss of data recording. Cesarean delivery and the useof anesthesia did neither prevent breastfeeding in the first hour of lifenor skin-to-skin contact. The prevalence was 74.3%. Conclusions:The use of technology and the hospital practices interfere inbreastfeeding, but are not factors that prevent it. The identificationof the prevalence and limiting factors contributes to the evaluationof the care provided and elaboration of nursing interventions forcontinuous improvement of the care practice. Improvement actionsshould include prenatal care and delivery itself.

  14. Evaluating Pediatric Intussusception Using 24-hour Ultrasound

    Directory of Open Access Journals (Sweden)

    Yi-Jung Chang

    2013-08-01

    Conclusion: Radiographic imaging at night results in higher radiation exposure and negative enema findings. Twenty-four-hour ultrasound availability would decrease the radiation exposure and unnecessary enemas for intussusceptions suspected clinically.

  15. Effect of daylight hours on performance of growing grasscutters ...

    African Journals Online (AJOL)

    The effect of daylight hours on growing grasscutters was determined using sixteen 8-months old femalegrasscutters. The grasscutters were separated into four groups and allotted to four treatments of varying daylight hours. The treatments included; zero (0) hours of daylight and twenty four (24) hours (6.00 am-6.00 am) of ...

  16. Determining Optimal Hourly and Annual Coefficient District Cooling - One of the Aspects use of Green Technology

    Directory of Open Access Journals (Sweden)

    Sefik M.Bajmak

    2013-11-01

    Full Text Available Work together more cooling source (refrigeration machines the system of centralized supply cooling energy ( SCSCE is a way to achieve cost-effective operation and safe and rational supply consumption area with cool water for central cooling and air conditioning . Maximum energy needs cold water occurs rarely , because the extremely high temperatures occur rarely . Therefore , the total cooling load is divided into basic and peak . One of the main characteristics that define the justification of the use of coupled processes and sizes hourly coefficient centralized supply of cold water, temperature regime , or hour coefficient district cooling . Determination of Optimal hour coefficient district cooling is one of the most techno economic tasks at the design of the system of centralized supply cold water for air conditioning and industrial building social housing and business districts .

  17. What are the intensities and line-shapes of the twenty four polarization terms in coherent anti-Stokes Raman spectroscopy?

    Energy Technology Data Exchange (ETDEWEB)

    Niu, Kai [School of Science, Tianjin University of Technology and Education, Tianjin, 300222 (China); Lee, Soo-Y., E-mail: sooying@ntu.edu.sg [Division of Physics & Applied Physics, and Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371 (Singapore)

    2015-12-15

    Coherent anti-Stokes Raman spectroscopy (CARS) is conventionally described by just one diagram/term where the three electric field interactions act on the ket side in a Feynman dual time-line diagram in a specific time order of pump, Stokes and probe pulses. In theory, however, any third-order nonlinear spectroscopy with three different electric fields interacting with a molecule can be described by forty eight diagrams/terms. They reduce to just 24 diagrams/terms if we treat the time ordering of the electric field interactions on the ket independently of those on the bra, i.e. the ket and bra wave packets evolve independently. The twenty four polarization terms can be calculated in the multidimensional, separable harmonic oscillator model to obtain the intensities and line-shapes. It is shown that in fs/ps CARS, for the two cases of off-resonance CARS in toluene and resonance CARS in rhodamine 6G, where we use a fs pump pulse, a fs Stokes pulse and a ps probe pulse, we obtain sharp vibrational lines in four of the polarization terms where the pump and Stokes pulses can create a vibrational coherence on the ground electronic state, while the spectral line-shapes of the other twenty terms are broad and featureless. The conventional CARS term with sharp vibrational lines is the dominant term, with intensity at least one order of magnitude larger than the other terms.

  18. What are the intensities and line-shapes of the twenty four polarization terms in coherent anti-Stokes Raman spectroscopy?

    Science.gov (United States)

    Niu, Kai; Lee, Soo-Y.

    2015-12-01

    Coherent anti-Stokes Raman spectroscopy (CARS) is conventionally described by just one diagram/term where the three electric field interactions act on the ket side in a Feynman dual time-line diagram in a specific time order of pump, Stokes and probe pulses. In theory, however, any third-order nonlinear spectroscopy with three different electric fields interacting with a molecule can be described by forty eight diagrams/terms. They reduce to just 24 diagrams/terms if we treat the time ordering of the electric field interactions on the ket independently of those on the bra, i.e. the ket and bra wave packets evolve independently. The twenty four polarization terms can be calculated in the multidimensional, separable harmonic oscillator model to obtain the intensities and line-shapes. It is shown that in fs/ps CARS, for the two cases of off-resonance CARS in toluene and resonance CARS in rhodamine 6G, where we use a fs pump pulse, a fs Stokes pulse and a ps probe pulse, we obtain sharp vibrational lines in four of the polarization terms where the pump and Stokes pulses can create a vibrational coherence on the ground electronic state, while the spectral line-shapes of the other twenty terms are broad and featureless. The conventional CARS term with sharp vibrational lines is the dominant term, with intensity at least one order of magnitude larger than the other terms.

  19. What are the intensities and line-shapes of the twenty four polarization terms in coherent anti-Stokes Raman spectroscopy?

    International Nuclear Information System (INIS)

    Niu, Kai; Lee, Soo-Y.

    2015-01-01

    Coherent anti-Stokes Raman spectroscopy (CARS) is conventionally described by just one diagram/term where the three electric field interactions act on the ket side in a Feynman dual time-line diagram in a specific time order of pump, Stokes and probe pulses. In theory, however, any third-order nonlinear spectroscopy with three different electric fields interacting with a molecule can be described by forty eight diagrams/terms. They reduce to just 24 diagrams/terms if we treat the time ordering of the electric field interactions on the ket independently of those on the bra, i.e. the ket and bra wave packets evolve independently. The twenty four polarization terms can be calculated in the multidimensional, separable harmonic oscillator model to obtain the intensities and line-shapes. It is shown that in fs/ps CARS, for the two cases of off-resonance CARS in toluene and resonance CARS in rhodamine 6G, where we use a fs pump pulse, a fs Stokes pulse and a ps probe pulse, we obtain sharp vibrational lines in four of the polarization terms where the pump and Stokes pulses can create a vibrational coherence on the ground electronic state, while the spectral line-shapes of the other twenty terms are broad and featureless. The conventional CARS term with sharp vibrational lines is the dominant term, with intensity at least one order of magnitude larger than the other terms

  20. The usefulness of twenty-four molecular markers in predicting treatment outcome with combination therapy of amodiaquine plus sulphadoxine-pyrimethamine against falciparum malaria in Papua New Guinea

    Directory of Open Access Journals (Sweden)

    Reeder John C

    2008-04-01

    Full Text Available Abstract Background In Papua New Guinea (PNG, combination therapy with amodiaquine (AQ or chloroquine (CQ plus sulphadoxine-pyrimethamine (SP was introduced as first-line treatment against uncomplicated malaria in 2000. Methods We assessed in vivo treatment failure rates with AQ+SP in two different areas in PNG and twenty-four molecular drug resistance markers of Plasmodium falciparum were characterized in pre-treatment samples. The aim of the study was to investigate the association between infecting genotype and treatment response in order to identify useful predictors of treatment failure with AQ+SP. Results In 2004, Day-28 treatment failure rates for AQ+SP were 29% in the Karimui and 19% in the South Wosera area, respectively. The strongest independent predictors for treatment failure with AQ+SP were pfmdr1 N86Y (OR = 7.87, p pfdhps A437G (OR = 3.44, p pfcrt K76T, A220S, N326D, and I356L did not help to increase the predictive value, the most likely reason being that these mutations reached almost fixed levels. Though mutations in SP related markers pfdhfr S108N and C59R were not associated with treatment failure, they increased the predictive value of pfdhps A437G. The difference in treatment failure rate in the two sites was reflected in the corresponding genetic profile of the parasite populations, with significant differences seen in the allele frequencies of mutant pfmdr1 N86Y, pfmdr1 Y184F, pfcrt A220S, and pfdhps A437G. Conclusion The study provides evidence for high levels of resistance to the combination regimen of AQ+SP in PNG and indicates which of the many molecular markers analysed are useful for the monitoring of parasite resistance to combinations with AQ+SP.

  1. Drydock Extension - A 1980 Underwater Technology Survey for Extension of Time between Drydocking

    Science.gov (United States)

    1980-12-01

    stations in Las Palmas and Aruba routinely clean tankers and cargo ships in a twenty-four hour period. C. Research Underway for Advancing Technology: The...to 100 in order to expose the hull down to the turn of the bilge has been a routine practice since 1975 in Las Palmas , Canary Islands (BID 59, 134...San Diego, CA 92112 Continental Diving Service, Inc. International Paint Co. P. 0. Box 2484 3105 Lorena AvenueMorgan City, LA 70381 Baltimore

  2. 75 FR 17281 - Changes in Hourly Fee Rates for Science and Technology Laboratory Services-Fiscal Years 2010-2012

    Science.gov (United States)

    2010-04-06

    ... equipment, training, trash and hazardous waste disposal, travel and transportation costs. There have been... Small Business Administration (13 CFR 121.201). The increases in annual hourly fee rates as stated will...

  3. IRVINGIA GABONENSIS FOR TWENTY-FOUR WEEKS

    African Journals Online (AJOL)

    ID 12 15 18 21 24. Time (Weeks). Figure 5: Effects of I. gabonensis on mean corpuscular volume (MCV) of normal rabbits. Values carrying notations are statistically different from control at p<0.05. ©CMS UNIBEN [MBR zo12=11(2) ...

  4. Giorgio Vasari and the Image of the Hour

    Science.gov (United States)

    Gahtan, M. W.

    2011-06-01

    Giorgio Vasari created the first allegories of the twenty-four hours in the mid-16th century. This essay explores Vasari's novel images in the context of his visual and literary sources, the rising importance of household timepieces, and the artist's other works and writings. Although a focused study of a single motif within Vasari's oeuvre, it has implications for the broader transformation time perception and its psychological dimensions then taking place in Early Modern Europe.

  5. The 24-hour report as an effective monitoring and communication tool in infection prevention and control in nursing homes.

    Science.gov (United States)

    Fisch, Jay; McNamara, Sara E; Lansing, Bonnie J; Mody, Lona

    2014-10-01

    Twenty-four-hour reports are filled out by nurses daily to monitor nursing home residents and document any changes in resident status. Semistructured interviews conducted with ICPs from 12 southeast Michigan nursing homes showed that although 24-hour reports were used, they were not standardized for infection prevention activities. Our results indicate 24-hour reports can be an effective communication tool and potentially aid in early recognition of infections and outbreaks. Published by Elsevier Inc.

  6. High-Dose Statin Pretreatment Decreases Periprocedural Myocardial Infarction and Cardiovascular Events in Patients Undergoing Elective Percutaneous Coronary Intervention: A Meta-Analysis of Twenty-Four Randomized Controlled Trials

    Science.gov (United States)

    Wang, Le; Peng, Pingan; Zhang, Ou; Xu, Xiaohan; Yang, Shiwei; Zhao, Yingxin; Zhou, Yujie

    2014-01-01

    Background Evidence suggests that high-dose statin pretreatment may reduce the risk of periprocedural myocardial infarction (PMI) and major adverse cardiac events (MACE) for certain patients; however, previous analyses have not considered patients with a history of statin maintenance treatment. In this meta-analysis of randomized controlled trials (RCTs), we reevaluated the efficacy of short-term high-dose statin pretreatment to prevent PMI and MACE in an expanded set of patients undergoing elective percutaneous coronary intervention. Methods We searched the PubMed/Medline database for RCTs that compared high-dose statin pretreatment with no statin or low-dose statin pretreatment as a prevention of PMI and MACE. We evaluated the incidence of PMI and MACE, including death, spontaneous myocardial infarction, and target vessel revascularization at the longest follow-up for each study for subgroups stratified by disease classification and prior low-dose statin treatment. Results Twenty-four RCTs with a total of 5,526 patients were identified. High-dose statin pretreatment was associated with 59% relative reduction in PMI (odds ratio [OR]: 0.41; 95% confidence interval [CI]: 0.34–0.49; Pstatin pretreatment on MACE was significant for statin-naive patients (OR: 0.69; 95% CI: 0.50–0.95; P = 0.02) and prior low dose statin-treated patients (OR: 0.28; 95% CI: 0.12–0.65; P = 0.003); and for patients with acute coronary syndrome (OR: 0.52; 95% CI: 0.34–0.79; P = 0.003), but not for patients with stable angina (OR: 0.71; 95% CI 0.45–1.10; P = 0.12). Long-term effects on survival were less obvious. Conclusions High-dose statin pretreatment can result in a significant reduction in PMI and MACE for patients undergoing elective PCI. The positive effect of high-dose statin pretreatment on PMI and MACE is significant for statin-naïve patients and patients with prior treatment. The positive effect of high-dose statin pretreatment on MACE is significant for

  7. Massive weight loss restores 24-hour growth hormone release profiles and serum insulin-like growth factor-I levels in obese subjects

    DEFF Research Database (Denmark)

    Rasmussen, M H; Hvidberg, A; Juul, A

    1995-01-01

    reduced weight obese subjects after a diet-induced average weight loss of 30.3 +/- 4.6 kg. Twenty-four-hour spontaneous GH secretion was estimated by obtaining 3240 integrated 20-min blood samples using a constant blood withdrawal technique and computerized algorithms. Body composition was determined...

  8. Surface Weather Observations Hourly

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Standard hourly observations taken at Weather Bureau/National Weather Service offices and airports throughout the United States. Hourly observations began during the...

  9. Correlation of 2 hour, 4 hour, 8 hour and 12 hour urine protein with 24 hour urinary protein in preeclampsia.

    Directory of Open Access Journals (Sweden)

    Savita Rani Singhal

    2014-09-01

    Full Text Available To find shortest and reliable time period of urine collection for determination of proteinuria.It is a prospective study carried out on 125 pregnant women with preeclampsia after 20 weeks of gestation having urine albumin >1 using dipstick test. Urine was collected in five different time intervals in colors labeled containers with the assistance of nursing staff; the total collection time was 24 hours. Total urine protein of two-hour, four-hour, eight-hour, 12-hour and 24-hour urine was measured and compared with 24-hour collection. Data was analyzed using the Pearson correlation coefficient.There was significant correlation (p value < 0.01 in two, four, eight and 12-hour urine protein with 24-urine protein, with correlation coefficient of 0.97, 0.97, 0.96 and 0.97, respectively. When a cut off value of 25 mg, 50 mg. 100 mg, and 150 mg for urine protein were used for 2-hour, 4-hours, 8-hour and 12-hour urine collection, a sensitivity of 92.45%, 95.28%, 91.51%, and 96.23% and a specificity of 68.42%, 94.74%, 84.21% and 84.21% were obtained, respectively.Two-hour urine proteins can be used for assessment of proteinuria in preeclampsia instead of gold standard 24-hour urine collection for early diagnosis and better patient compliance.

  10. Cracking the Credit Hour

    Science.gov (United States)

    Laitinen, Amy

    2012-01-01

    The basic currency of higher education--the credit hour--represents the root of many problems plaguing America's higher education system: the practice of measuring time rather than learning. "Cracking the Credit Hour" traces the history of this time-based unit, from the days of Andrew Carnegie to recent federal efforts to define a credit…

  11. 24-hour urine protein

    Science.gov (United States)

    Urine protein - 24 hour; Chronic kidney disease - urine protein; Kidney failure - urine protein ... Heart failure High blood pressure during pregnancy ( preeclampsia ) Kidney disease caused by diabetes, high blood pressure, autoimmune disorders, ...

  12. Twenty-Four Tuba Harmonics Using a Single Pipe Length

    Science.gov (United States)

    Holmes, Bud; Ruiz, Michael J.

    2017-01-01

    Harmonics arise naturally from the resonances in strings and pipes. A video demonstration (Ruiz 2016 "YouTube: Tuba Harmonics" (https://youtu.be/souhEzOP9c4)) is provided where a tubist (coauthor Holmes) produces a phenomenal 24 harmonics using a single tuba pipe length by controlling the buzz of his lips. The frequencies of the…

  13. Living hours under pressure

    DEFF Research Database (Denmark)

    Ilsøe, Anna; Larsen, Trine Pernille; Felbo-Kolding, Jonas

    2017-01-01

    Purpose The purpose of this paper is to investigate the effect of part-time work on absolute wages. The empirical focus is wages and working hours in three selected sectors within private services in the Danish labour market – industrial cleaning, retail, hotels and restaurants – and their agreem......Purpose The purpose of this paper is to investigate the effect of part-time work on absolute wages. The empirical focus is wages and working hours in three selected sectors within private services in the Danish labour market – industrial cleaning, retail, hotels and restaurants...... in industrial cleaning includes a minimum floor of 15 weekly working hours – this is not the case in retail, hotels and restaurants. This creates a loophole in the latter two sectors that can be exploited by employers to gain wage flexibility through part-time work. Originality/value The living wage literature...

  14. HTML5 24-Hour Trainer

    CERN Document Server

    Lowery, Joseph W

    2011-01-01

    Comprehensive written and interactive instruction for learning HTML5 HTML is the core technology for building websites. Today, with HTML5 opening the Internet to new levels of rich content and dynamic interactivity, developers are looking for information to learn and utilize HTML5. HTML5 24-Hour Trainer provides that information, giving new and aspiring web developers the knowledge they need to achieve early success when building websites. Covers the most basic aspects of a web page, including a brief introduction to Cascading Style Sheets (CSS) Provides lessons that are backed up by prof

  15. New gate opening hours

    CERN Multimedia

    GS Department

    2009-01-01

    Please note the new opening hours of the gates as well as the intersites tunnel from the 19 May 2009: GATE A 7h - 19h GATE B 24h/24 GATE C 7h - 9h\t17h - 19h GATE D 8h - 12h\t13h - 16h GATE E 7h - 9h\t17h - 19h Prévessin 24h/24 The intersites tunnel will be opened from 7h30 to 18h non stop. GS-SEM Group Infrastructure and General Services Department

  16. Geneva 24 hours swim

    CERN Multimedia

    2003-01-01

    The 18th edition of the Geneva 24 hours swim competition will take place at the Vernets Swimming Pool on the 4th and 5th of October. More information and the results of previous years are given at: http://www.carouge-natation.com/24_heures/home_24_heures.htm Last year, CERN obtained first position in the inter-company category with a total of 152.3 kms swam by 45 participants. We are counting on your support to repeat this excellent performance this year. For those who would like to train, the Livron swimming pool in Meyrin is open as from Monday the 8th September. For further information please do not hesitate to contact us. Gino de Bilio and Catherine Delamare

  17. Geneva 24 Hours Swim

    CERN Multimedia

    2003-01-01

    The 18th edition of the Geneva 24 hours swim competition will take place at the Vernets Swimming Pool on the 4th and 5th of October. More information and the results of previous years are given at: http://www.carouge-natation.com/24_heures/home_24_heures.htm Last year, CERN obtained first position in the inter-company category with a total of 152.3 kms swam by 45 participants. We are counting on your support to repeat this excellent performance this year. For those who would like to train, the Livron swimming pool in Meyrin is open as from Monday the 8th September. For further information please do not hesitate to contact us. Gino de Bilio and Catherine Delamare

  18. Comparison of 24-hour cardiovascular and autonomic function in paraplegia, tetraplegia, and control groups: implications for cardiovascular risk.

    Science.gov (United States)

    Rosado-Rivera, Dwindally; Radulovic, M; Handrakis, John P; Cirnigliaro, Christopher M; Jensen, A Marley; Kirshblum, Steve; Bauman, William A; Wecht, Jill Maria

    2011-01-01

    Fluctuations in 24-hour cardiovascular hemodynamics, specifically heart rate (HR) and blood pressure (BP), are thought to reflect autonomic nervous system (ANS) activity. Persons with spinal cord injury (SCI) represent a model of ANS dysfunction, which may affect 24-hour hemodynamics and predispose these individuals to increased cardiovascular disease risk. To determine 24-hour cardiovascular and ANS function among individuals with tetraplegia (n=20; TETRA: C4-C8), high paraplegia (n=10; HP: T2-T5), low paraplegia (n=9; LP: T7-T12), and non-SCI controls (n=10). Twenty-four-hour ANS function was assessed by time domain parameters of heart rate variability (HRV); the standard deviation of the 5-minute average R-R intervals (SDANN; milliseconds/ms), and the root-mean square of the standard deviation of the R-R intervals (rMSSD; ms). Subjects wore 24-hour ambulatory monitors to record HR, HRV, and BP. Mixed analysis of variance (ANOVA) revealed significantly lower 24-hour BP in the tetraplegic group; however, BP did not differ between the HP, LP, and control groups. Mixed ANOVA suggested significantly elevated 24-hour HR in the HP and LP groups compared to the TETRA and control groups (Pcontrol groups (Pcontrol groups (P<0.01). Twenty-four-hour SDANN was significantly increased in the HP group compared to the LP and TETRA groups (P<0.05) and rMSSD was significantly lower in the LP compared to the other three groups (P<0.05). Elevated 24-hour HR in persons with paraplegia, in concert with altered HRV dynamics, may impart significant adverse cardiovascular consequences, which are currently unappreciated.

  19. Fixed Costs and Hours Constraints

    Science.gov (United States)

    Johnson, William R.

    2011-01-01

    Hours constraints are typically identified by worker responses to questions asking whether they would prefer a job with more hours and more pay or fewer hours and less pay. Because jobs with different hours but the same rate of pay may be infeasible when there are fixed costs of employment or mandatory overtime premia, the constraint in those…

  20. Hourly Precipitation Data (HPD) Publication

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Hourly Precipitation Data (HPD) Publication is archived and available from the National Climatic Data Center (NCDC). This publication contains hourly precipitation...

  1. US Naval Observatory Hourly Observations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Hourly observations journal from the National Observatory in Washington DC. The observatory is the first station in the United States to produce hourly observations...

  2. Is the Office Hour Obsolete?

    Science.gov (United States)

    Behrens, Susan

    2013-01-01

    A colleague can't make a coffee date at a time the author proposes because it would conflict with his office hour. No student has actually made an appointment with him during the hour, but he is committed to being in his office as promised in case someone drops by. The author's reaction to her colleague's faithfulness to his posted office hour…

  3. Lack of stimulation of 24-hour growth hormone release by hypocaloric diet in obesity

    DEFF Research Database (Denmark)

    Rasmussen, M H; Juul, A; Kjems, L L

    1995-01-01

    Obesity is associated with a marked reduction in the spontaneous secretion of GH. To investigate the effect of acute alterations in calorie intake on GH release, 24-hr spontaneous GH release was measured during habitual calorie intake as well as during a short term, very low calorie diet (VLCD......-I (IGF-I), IGF-binding protein-1 (IGFBP-1), IGF-binding protein-3 (IGFBP-3), insulin, pro-insulin, and blood glucose were measured during habitual energy intake as well as during the hypocaloric diet. Twenty-four-hour GH release profiles and IGFBP-1 were decreased, and insulin as well as proinsulin....... This suggests a reversible defect in GH release, rather than a persistent preexisting disorder. It is hypothesized that enhanced bioavailability of IGF-I, acting in concert with elevated proinsulin and insulin levels, may account for the lack of stimulation of 24-hr GH release by the hypocaloric diet in obese...

  4. New Approach To Hour-By-Hour Weather Forecast

    Science.gov (United States)

    Liao, Q. Q.; Wang, B.

    2017-12-01

    Fine hourly forecast in single station weather forecast is required in many human production and life application situations. Most previous MOS (Model Output Statistics) which used a linear regression model are hard to solve nonlinear natures of the weather prediction and forecast accuracy has not been sufficient at high temporal resolution. This study is to predict the future meteorological elements including temperature, precipitation, relative humidity and wind speed in a local region over a relatively short period of time at hourly level. By means of hour-to-hour NWP (Numeral Weather Prediction)meteorological field from Forcastio (https://darksky.net/dev/docs/forecast) and real-time instrumental observation including 29 stations in Yunnan and 3 stations in Tianjin of China from June to October 2016, predictions are made of the 24-hour hour-by-hour ahead. This study presents an ensemble approach to combine the information of instrumental observation itself and NWP. Use autoregressive-moving-average (ARMA) model to predict future values of the observation time series. Put newest NWP products into the equations derived from the multiple linear regression MOS technique. Handle residual series of MOS outputs with autoregressive (AR) model for the linear property presented in time series. Due to the complexity of non-linear property of atmospheric flow, support vector machine (SVM) is also introduced . Therefore basic data quality control and cross validation makes it able to optimize the model function parameters , and do 24 hours ahead residual reduction with AR/SVM model. Results show that AR model technique is better than corresponding multi-variant MOS regression method especially at the early 4 hours when the predictor is temperature. MOS-AR combined model which is comparable to MOS-SVM model outperform than MOS. Both of their root mean square error and correlation coefficients for 2 m temperature are reduced to 1.6 degree Celsius and 0.91 respectively. The

  5. Comparison of Spot Urine Protein to Creatinine Ratio to 24-Hour Proteinuria to Identify Important Change Over Time in Proteinuria in Lupus.

    Science.gov (United States)

    Medina-Rosas, Jorge; Su, Jiandong; Cook, Richard J; Sabapathy, Arthy; Touma, Zahi

    2017-09-01

    The aim of this study was to determine whether spot urine protein-to-creatinine ratio (PCR) accurately measures the change in proteinuria compared with 24-hour proteinuria (24H-P). This was a retrospective analysis on patients' paired visits and paired urine samples for PCR and 24H-P. Patients with both abnormal 24H-P (>0.5 g/d) and PCR (>0.05 g/mmol) or both normal 24H-P (≤0.5 g/d) and PCR (≤0.05 g/mmol) at baseline visit were identified.The first follow-up visit with partial recovery (50% decrease in proteinuria) or complete recovery (≤0.5 g/d) was identified for those with abnormal baseline 24H-P, and new proteinuria (>0.5 g/d) was identified for those with normal 24H-P. Twenty-four-hour urine collection and PCR end-point frequencies were compared. Twenty-four-hour urine collection results were converted to 24H-PCR. Twenty-four-hour PCR and PCR were utilized to measure the magnitude of change (by standardized response mean [SRM]) in patients who achieved the end points. Of 230 patients, at baseline, 95 patients had abnormal and 109 had normal 24H-P and PCR. On follow-up, 57 achieved partial recovery, and 53 achieved complete recovery by 24H-P. Standardized response mean was -1.03 and -1.10 for 24H-PCR and PCR, respectively. By PCR, 53 patients had partial recovery, and 27 had complete recovery. Standardized response mean was -1.25 and -0.86 by 24H-PCR and PCR, respectively.For new proteinuria, 28 patients were identified by 24H-P and 21 by PCR. Twenty-four-hour PCR SRM was 0.80, and PCR SRM was 0.68. Protein-to-creatinine ratio does not have sufficient accuracy compared with 24H-P for improvement and worsening to be used in lieu of 24H-P.

  6. Ozone Nonattainment Areas - 1 Hour

    Data.gov (United States)

    U.S. Environmental Protection Agency — This data layer identifies areas in the U.S. where air pollution levels have not met the National Ambient Air Quality Standards (NAAQS) for Ozone - 1hour (Legacy...

  7. Procedural training in virtual reality: A comparison of technology types

    International Nuclear Information System (INIS)

    Sebok, A.; Nystad, E.

    2006-01-01

    This paper describes a study investigating questions of learning effectiveness in different VR technology types. Four VR display technology types were compared in terms of their ability to support procedural learning. The VR systems included two desktop displays (mono-scopic and stereoscopic view), a large screen stereoscopic display, and a mono-scopic head-mounted display. Twenty-four participants completed procedural training scenarios on these different display types. Training effectiveness was assessed in terms of objective task performance. Following the training session, participants performed the procedure they had just learned using the same VR display type they used for training. Time to complete the procedure and errors were recorded. Retention and transfer of training were evaluated in a talk-through session 24 hours after the training. In addition, subjective questionnaire data were gathered to investigate perceived workload, Sense of Presence, simulator sickness, perceived usability, and ease of navigation. While no difference was found for the short-term learning, the study results indicate that retention and transfer of training were better supported by the large screen stereoscopic condition. (authors)

  8. Excel VBA 24-hour trainer

    CERN Document Server

    Urtis, Tom

    2015-01-01

    Master VBA automation quickly and easily to get more out of Excel Excel VBA 24-Hour Trainer, 2nd Edition is the quick-start guide to getting more out of Excel, using Visual Basic for Applications. This unique book/video package has been updated with fifteen new advanced video lessons, providing a total of eleven hours of video training and 45 total lessons to teach you the basics and beyond. This self-paced tutorial explains Excel VBA from the ground up, demonstrating with each advancing lesson how you can increase your productivity. Clear, concise, step-by-step instructions are combined wit

  9. 168 Hours Salt Fog Test

    International Nuclear Information System (INIS)

    Nur Ubaidah Saidin; Muhamad Daud; Siti Radiah Mohd Kamarudin

    2011-01-01

    This report explained the test conducted in salt fog chamber to evaluate the effectiveness of mild steel, coated with rust converter, for 168 hours in artificial seawater exposure. The samples were compared with mild steel coated with commercial primer. The tests were conducted followed ASTM B117. Individual pictures were taken of each sample before the tests began, at 24, 48, 72, 96, 120, 144 and 168 hours to see the progression of the corrosion. Results showed that the samples coated with rust converter provide a good significant protection against corrosion phenomenon than the samples coated with commercial primer that available in the market. (author)

  10. Comparison of 24-hour cardiovascular and autonomic function in paraplegia, tetraplegia, and control groups: Implications for cardiovascular risk

    Science.gov (United States)

    Rosado-Rivera, Dwindally; Radulovic, M.; Handrakis, John P.; Cirnigliaro, Christopher M.; Jensen, A. Marley; Kirshblum, Steve; Bauman, William A.; Wecht, Jill Maria

    2011-01-01

    Background Fluctuations in 24-hour cardiovascular hemodynamics, specifically heart rate (HR) and blood pressure (BP), are thought to reflect autonomic nervous system (ANS) activity. Persons with spinal cord injury (SCI) represent a model of ANS dysfunction, which may affect 24-hour hemodynamics and predispose these individuals to increased cardiovascular disease risk. Objective To determine 24-hour cardiovascular and ANS function among individuals with tetraplegia (n = 20; TETRA: C4–C8), high paraplegia (n = 10; HP: T2–T5), low paraplegia (n = 9; LP: T7–T12), and non-SCI controls (n = 10). Twenty-four-hour ANS function was assessed by time domain parameters of heart rate variability (HRV); the standard deviation of the 5-minute average R–R intervals (SDANN; milliseconds/ms), and the root-mean square of the standard deviation of the R–R intervals (rMSSD; ms). Subjects wore 24-hour ambulatory monitors to record HR, HRV, and BP. Mixed analysis of variance (ANOVA) revealed significantly lower 24-hour BP in the tetraplegic group; however, BP did not differ between the HP, LP, and control groups. Mixed ANOVA suggested significantly elevated 24-hour HR in the HP and LP groups compared to the TETRA and control groups (P < 0.05); daytime HR was higher in both paraplegic groups compared to the TETRA and control groups (P < 0.01) and nighttime HR was significantly elevated in the LP group compared to the TETRA and control groups (P < 0.01). Twenty-four-hour SDANN was significantly increased in the HP group compared to the LP and TETRA groups (P < 0.05) and rMSSD was significantly lower in the LP compared to the other three groups (P < 0.05). Elevated 24-hour HR in persons with paraplegia, in concert with altered HRV dynamics, may impart significant adverse cardiovascular consequences, which are currently unappreciated. PMID:21903013

  11. The Relationship between Students' High School Technology Experiences and Their Perceptions about College Readiness during Their First Year at a Technology-Rich Post-Secondary Environment

    Science.gov (United States)

    Fusco, David J.

    2012-01-01

    This explanatory, mixed methods study investigated the relationship between students who currently attend Juniata College, as sophomores, and asked them to reflect on their high school technology experiences. All sophomores were invited to participate in a twenty-four question online survey, which included mostly quantitative Likert-style…

  12. A physically active occupation does not result in compensatory inactivity during out-of-work hours.

    Science.gov (United States)

    Tigbe, William W; Lean, Michael E J; Granat, Malcolm H

    2011-01-01

    To examine differences in non-occupational physical activity behaviour in workers who engage in high and low occupational physical activity. Cross-sectional survey of 112 otherwise comparable volunteers in active (56 walking postal delivery workers) or inactive (56 administrative postal workers) occupations in Glasgow (Scotland) in 2007. Twenty four-hour physical activity (steps and time standing, walking and sedentary) patterns were measured using activPAL™ for seven days. Comparisons were made during 8-hour work-shifts, during non-work hours on work-days and during the 2 non-work days. Age and body mass index of delivery and office staff, respectively, were (means (SD)) 38 (9) years versus 40 (7) years and 26.3 (3) kg m(-2) versus 27.4 (4) kg m(-2). Delivery staff spent substantially longer time than office staff upright (6.0 (1.1) h versus 3.9 (1.5) h) and walking (3.1 (0.7) h versus 1.6 (0.7) h) and amassed more steps (16,035 (4264) versus 6709 (2808)) during 8-hour work-shifts and over 24h on work days. During non-work hours of work-days and during non-work days, there were no significant differences in physical activity between the groups. The results were unchanged when the 15 women were excluded. Having a more active occupation is not associated with more inactivity during non-work hours. Copyright © 2011 Elsevier Inc. All rights reserved.

  13. Comparison of lipid and calorie loss from donor human milk among 3 methods of simulated gavage feeding: one-hour, 2-hour, and intermittent gravity feedings.

    Science.gov (United States)

    Brooks, Christine; Vickers, Amy Manning; Aryal, Subhash

    2013-04-01

    The objective of this study was to compare the differences in lipid loss from 24 samples of banked donor human milk (DHM) among 3 feeding methods: DHM given by syringe pump over 1 hour, 2 hours, and by bolus/gravity gavage. Comparative, descriptive. There were no human subjects. Twenty-four samples of 8 oz of DHM were divided into four 60-mL aliquots. Timed feedings were given by Medfusion 2001 syringe pumps with syringes connected to narrow-lumened extension sets designed for enteral feedings and connected to standard silastic enteral feeding tubes. Gravity feedings were given using the identical syringes connected to the same silastic feeding tubes. All aliquots were analyzed with the York Dairy Analyzer. Univariate repeated-measures analyses of variance were used for the omnibus testing for overall differences between the feeding methods. Lipid content expressed as grams per deciliter at the end of each feeding method was compared with the prefed control samples using the Dunnett's test. The Tukey correction was used for other pairwise multiple comparisons. The univariate repeated-measures analysis of variance conducted to test for overall differences between feeding methods showed a significant difference between the methods (F = 58.57, df = 3, 69, P gravity feeding methods (P = .3296). Pairwise comparison using the Tukey correction revealed a significant difference between both gravity and 1-hour feeding methods (P gravity and 2-hour feeding method (P gravity feedings, the timed feedings resulted in a statistically significant loss of fat as compared with their controls. These findings should raise questions about how those infants in the neonatal intensive care unit are routinely gavage fed.

  14. Social Participation and Hours Worked

    OpenAIRE

    Stefano Bartolini; Ennio Bilancini

    2011-01-01

    We investigate the relationship between social participation and the hours worked in the market. Social participation is the component of social capital that measures individuals? engagement in groups, associations and non-governmental organizations. We provide a model of consumer choice where social participation may be either a substitute or a complement to material consumption ? depending on whether participation is instrumentally or non-instrumentally motivated ? and where a local environ...

  15. OPENING HOURS FOR CARDS OFFICE

    CERN Multimedia

    Human Resources Division

    2001-01-01

    Due to the extra workload generated by the global renewal of French cards and in order to preserve the level of service offered by the cards office, please note that this office will in future be open every morning from 8.30 a.m. to 12.30 p.m. until further notice. The service can be contacted by telephone during the same hours. Thank you for your understanding.

  16. Java programming 24-hour trainer

    CERN Document Server

    Fain, Yakov

    2015-01-01

    Quick and painless Java programming with expert multimedia instruction Java Programming 24-Hour Trainer, 2nd Edition is your complete beginner's guide to the Java programming language, with easy-to-follow lessons and supplemental exercises that help you get up and running quickly. Step-by-step instruction walks you through the basics of object-oriented programming, syntax, interfaces, and more, before building upon your skills to develop games, web apps, networks, and automations. This second edition has been updated to align with Java SE 8 and Java EE 7, and includes new information on GUI b

  17. 7 positions in 2 hours

    Directory of Open Access Journals (Sweden)

    Jessica Ackerman

    2013-07-01

    Full Text Available 7 positions in 2 hours (2013 is a drawing that documents the process of making the short film Role Reversal Rehearsal. It became quickly apparent that the process of making the work was more dynamic and interesting than the finished piece itself. Relationships between the childcare arrangements of the participants and the collective working process brought about the necessity of collaboration for parent artists. Each participant gave their time, energy and creative insight towards filming a series of birthing positions with roles reversed. The male performer became the central figure in an attempt to prompt empathy, humour, and to embody the importance of the male role in childbirth. There were two hours to choreograph, rehearse, and film the sequence. The drawing by Ackerman encapsulates the 'rhizomatic' approach to producing creative work under the constraints of parenthood. The 'arborescent' structure of hierarchy encouraged in industrial filmmaking is subsumed in favour of a horizontal structure. This new structure allows for the creative input, and flow of collaboration between all people involved - including the 3 and 5 year olds, who contributed ideas for camera and soundtrack in situ.

  18. Edwin Austin Abbey's The Passage of the Hours: Astronomy as History

    Science.gov (United States)

    Ricci, P. L.

    2016-01-01

    The Passage of the Hours (1909-1911) in the Pennsylvania State Capitol at Harrisburg is one of the most original and least known astronomical ceilings in the United States. Designed by the American artist Edwin Austin Abbey (1852-1911) to complement the Italian Renaissance style architecture of the House of Representatives, the mural combines two classical traditions of representing the night sky: a celestial map with the constellations of the zodiac and the personifications of the Hours. Set in a shallow dome twenty-four feet in diameter, Abbey's constellation figures float in a dazzling firmament where the Milky Way streams between the Sun and the Moon. The artist placed the Horae of Greek mythology around the dome's circumference in the position of the numbers on an astronomical clock. In the tradition of Italian Renaissance architecture, the celestial ceiling in the House of Representatives was part of an iconographic program affirming the cosmological origin of a polity. The astronomical theme relates to Abbey's murals in the House Chamber of the first public reading of the Declaration of Independence in 1776 from David Rittenhouse's observatory in Philadelphia, which the astronomer constructed to study the transit of Venus in 1769. The artist included a portrait of Rittenhouse holding his telescope among the worthies in the adjacent mural of The Apotheosis of Pennsylvania. Contemporary as well as historical events encouraged Abbey's use of astronomical imagery: the depiction of a comet may record the much-anticipated return of Halley's Comet in 1910.

  19. Short hours, long hours: Hour levels and trends in the retail industry in the United States, Canada, and Mexico

    OpenAIRE

    Carré, Françoise; Tilly, Chris

    2012-01-01

    In settings where most workers have full-time schedules, hourly wages are appropriate primary indicators of job quality and worker outcomes. However, in sectors where full-time schedules do not dominate - primarily service-producing activities - total hours matter, in addition to hourly wages, for job quality and worker outcomes. In this paper we employ a sector-focused, comparative framework to further examine hours levels - measured as average weekly hours - and trends in Canada, the United...

  20. Technology.

    Science.gov (United States)

    Online-Offline, 1998

    1998-01-01

    Focuses on technology, on advances in such areas as aeronautics, electronics, physics, the space sciences, as well as computers and the attendant progress in medicine, robotics, and artificial intelligence. Describes educational resources for elementary and middle school students, including Web sites, CD-ROMs and software, videotapes, books,…

  1. Training in virtual reality: qualitative results from a comparison of technology types

    International Nuclear Information System (INIS)

    Sebok, Angelia; Nystad, Espen

    2005-08-01

    The study described in HWR-734 consisted of three experiments. The first experiment compared procedural and configuration learning using four display technology types; the second experiment compared these same four technology types in a retention and transfer of training condition, and the third experiment compared assembly learning using three types of displays. The purpose of the study was to determine if the technology types differed in their ability to support learning. Thus, several different types of learning tasks were included (i.e., procedures, configuration and assembly). For all types of learning, short term training effectiveness was evaluated: subjects were tested immediately after the training session, in the same conditions in which they had been trained. In addition, procedural learning was also evaluated in a retention and transfer of training condition, where subjects were tested 24 hours after the initial training, in a real-world talk-through condition. In the Procedural / Configuration knowledge conditions, four technology types were evaluated. These include a desktop monoscopic display (DM), a desktop stereoscopic display (DS), a large-screen stereoscopic display (LS-S), and a head-mounted display with orientation tracking. In the Assembly knowledge condition, three technology types were evaluated: a desktop monoscopic display (DM), a large-screen monoscopic display (LS-M), and a head-mounted display without orientation tracking (HMD-nt). Twenty-four employees at the Halden Boiling Water Reactor (HBWR) participated in the study. The study lasted for one week, so all subjects attended for multiple days. Prior to starting the experiment, subjects attended a briefing where they were given instructions on how to use the equipment. They were allowed 10 minutes practice to get familiar with each technology type before each experimental session. During and after the experimental sessions, data were collected. These included objective data, such as

  2. Intracranial Pressure Elevation 24 Hours after Ischemic Stroke in Aged Rats is Prevented by Early, Short Hypothermia Treatment

    Directory of Open Access Journals (Sweden)

    Lucy Anne Murtha

    2016-05-01

    Full Text Available Stroke is predominantly a senescent disease, yet most preclinical studies investigate treatment in young animals. We recently demonstrated that short-duration hypothermia-treatment completely prevented the dramatic intracranial pressure (ICP rise seen post-stroke in young rats. Here, our aim was to investigate whether a similar ICP rise occurs in aged rats and to determine whether short-duration hypothermia is an effective treatment in aged animals. Experimental Middle Cerebral Artery occlusion (MCAo - 3 hour occlusion was performed on male Wistar rats aged 19-20 months. At one hour after stroke-onset, rats were randomized to 2.5 hours hypothermia-treatment (32.5 °C or normothermia (37 °C. ICP was monitored at baseline, for 3.5 hours post-occlusion, and at 24 hours post-stroke. Infarct and edema volumes were calculated from histology. Baseline pre-stroke ICP was 11.2 ± 3.3 mmHg across all animals. Twenty-four hours post-stroke, ICP was significantly higher in normothermic animals compared to hypothermia-treated animals (27.4 ± 18.2 mmHg vs. 8.0 ± 5.0 mmHg, p = 0.03. Infarct and edema volumes were not significantly different between groups. These data demonstrate ICP may also increase 24 hours post-stroke in aged rats, and that short-duration hypothermia treatment has a profound and sustained preventative effect. These findings may have important implications for the use of hypothermia in clinical trials of aged stroke patients.

  3. distribution of hourly variability index of sky clearness

    African Journals Online (AJOL)

    Mgina

    ABSTRACT. Clouds affect the values of insolation for solar technology and other applications. To detect the presence of variability in the sky clearness, an hourly variability index ( 3) is calculated. The present study examined the frequency distribution of this variable as a tool for assessing the utilizability of solar radiation at ...

  4. Distribution of hourly variability index of sky clearness | Madhlopa ...

    African Journals Online (AJOL)

    Clouds affect the values of insolation for solar technology and other applications. To detect the presence of variability in the sky clearness, an hourly variability index ( 3) is calculated. The present study examined the frequency distribution of this variable as a tool for assessing the utilizability of solar radiation at a site.

  5. CERN restaurants: opening hours during summer

    CERN Multimedia

    2016-01-01

    In the summer, the three CERN restaurants remain open during their usual hours. On Monday 1st August and Thursday 8 September, the Restaurant 1 will be open from 7:00 a.m. to 10:00 p.m.   The satellites will be open as follows: Building 6: normal hours Building 13: normal hours Building 30: normal hours Building 40: closing at 4:30 p.m. instead of 5:00 pm Building 54: normal hours in July, closed in August Building 864: normal hours Building 865: normal hours Building 774: normal hours

  6. Technology

    Directory of Open Access Journals (Sweden)

    Xu Jing

    2016-01-01

    Full Text Available The traditional answer card reading method using OMR (Optical Mark Reader, most commonly, OMR special card special use, less versatile, high cost, aiming at the existing problems proposed a method based on pattern recognition of the answer card identification method. Using the method based on Line Segment Detector to detect the tilt of the image, the existence of tilt image rotation correction, and eventually achieve positioning and detection of answers to the answer sheet .Pattern recognition technology for automatic reading, high accuracy, detect faster

  7. An Hour of Spectacular Visualization

    Science.gov (United States)

    Hasler, Arthur F.

    2005-01-01

    The NASA/NOAA Electronic Theater presents Earth science observations and visualizations from space in a historical perspective. Fly in from outer space to Athens and site of the 2004 Summer Olympics and the Far East using 1 m IKONOS "Spy Satellite" data. Contrast the 1972 Apollo 17 "Blue Marble" image of the Earth with the latest US and International global satellite images that allow us to view our Planet from any vantage point. See the latest spectacular images from NASA/NOAA/Commercial remote sensing missions like Terra, GOES, TRMM, SeaWiFS, & Landsat 7, QuickBird of the SE Asia Tsunami, devastation of Hurricane Katrina this year in New Orleans, and the LA/San Diego Fires of 2003. See how High Definition Television (HDTV) is revolutionizing the way we do science communication. Take the pulse of the planet on a daily, annual and 30-year time scale. See daily thunderstorms, the annual blooming of the northern hemisphere land masses and oceans, fires in Africa, dust storms in Iraq, and carbon monoxide exhaust from global burning. See visualizations featured on Newsweek, TIME, National Geographic, Popular Science covers & National & International Network TV. Spectacular new global visualizations of the observed and simulated atmosphere & oceans are shown. See the currents and vortexes in the oceans that bring up the nutrients to feed tiny plankton and draw the fish, whales and fishermen. See the how the ocean blooms in response to El Nino/La Nina climate changes. The Etheater will be presented using the latest High Definition TV (HDTV) and video projection technology on a large screen. See city lights around the globe and in your area observed by the "night-vision" DMSP satellite, Also see how Keyhole and Google Maps are using satellite and aerial photography to help you find your house and plan your vacation.

  8. Effects of aerobic and resistance exercise intensities on 24-hours blood pressure in normotensive women

    Directory of Open Access Journals (Sweden)

    Aparecido Pimentel Ferreira

    2013-12-01

    Full Text Available The present study aimed to determine the effect of the intensity of aerobic and resistance exercise on the 24h BP response in normotensive women. Twenty-four women (aged 33 ± 9 years performed five experimental sessions in randomized order: CON - no exercise; AE50 - 50% of heart rate reserve (HRR; AE70 - 70% of HRR; RE40 - 40% of 1repetition maximum (RM and RE70 - 70% of 1RM. Systolic and diastolic BP and HR measurements were measured during 24h post-exercise at the participant's workplace. The AE50, AE70 and RE40 sessions led to the greatest and longest-lasting effects on the SBP, which persisted for up to 24h. For the DBP, the experimental sessions led to similar results; post exercise hypotension was observed until 7h post-exercise, with the exception of the AE70 session, which produced effects that persisted for 24h. Results shows that both aerobic and resistance exercise performed during the morning can decrease the mean BP above the baseline lasting 24 hours during a normal daily work. The aerobic exercise performed around 50% of HRR can better regulate both systolic and diastolic BP in this population.

  9. Community Energy Systems and the Law of Public Utilities. Volume Twenty-four. Michigan

    Energy Technology Data Exchange (ETDEWEB)

    Feurer, D.A.; Weaver, C.L.

    1981-01-01

    A detailed description of the laws and programs of the State of Michigan governing the regulation of public energy facilities, the municipal franchising of public energy utilities, and the prescription of rates to be charged by utilities including attendant problems of cost allocations, rate base and operating expense determinations, and rate of return allowances. These laws and programs are analyzed to identify impediments which they may present to the implementation of Integrated Community Energy Systems (ICES). This report is one of fifty-one separate volumes which describe such regulatory programs at the Federal level and in each state as background to the report entitled Community Energy Systems and the Law of Public Utilities - Volume One: An Overview. This report also contains a summary of a strategy described in Volume One - An Overview for overcoming these impediments by working within the existing regulatory framework and by making changes in the regulatory programs to enhance the likelihood of ICES implementation.

  10. Remission and rheumatoid arthritis: Data on patients receiving usual care in twenty-four countries

    DEFF Research Database (Denmark)

    Sokka, Tuulikki; Hetland, Merete Lund; Mäkinen, Heidi

    2008-01-01

    and lowest remission rates was >/=15% in 10 countries, 5-14% in 7 countries, and definition of remission, male sex, higher education, shorter disease duration, smaller number of comorbidities, and regular...... exercise were statistically significantly associated with remission. CONCLUSION: The use of different definitions of RA remission leads to different results with regard to remission rates, with considerable variation among countries and between sexes. Reported remission rates in clinical trials......OBJECTIVE: To compare the performance of different definitions of remission in a large multinational cross-sectional cohort of patients with rheumatoid arthritis (RA). METHODS: The Questionnaires in Standard Monitoring of Patients with RA (QUEST-RA) database, which (as of January 2008) included 5...

  11. Surgical treatment of mineralized and nonmineralized supraspinatus tendinopathy in twenty-four dogs.

    Science.gov (United States)

    Lafuente, M Pilar; Fransson, Boel A; Lincoln, James D; Martinez, Steven A; Gavin, Patrick R; Lahmers, Kevin K; Gay, John M

    2009-04-01

    To report and compare the clinical diagnosis, surgical treatment, histopathologic changes, and outcomes of dogs with mineralized and nonmineralized supraspinatus tendinopathy (ST). Case series. Dogs (n=24) with ST. Medical records (1995-2006) of dogs with ST that had surgical treatment were reviewed. Results of clinical examination, diagnostic imaging, surgery, histopathology of resected tendon tissue, and outcome were compared between dogs with mineralized and nonmineralized ST. There were 15 dogs with mineralized ST and 9 with nonmineralized ST. Chronic, unilateral, intermittent or waxing-waning lameness, and pain elicited on palpation of the cranial aspect of the shoulder were the most consistent findings. On ultrasonographic or magnetic resonance imaging (MRI) of 35 shoulders, enlargement of the supraspinatus tendon (54%), increased fluid content (63%), and medial displacement of the biceps tendon (60%) were observed. Eleven of 12 dogs with bilateral abnormalities only had unilateral lameness. Surgery was performed in 30 shoulders. Resected tendon specimens had myxomatous degeneration and/or cartilaginous metaplasia in 11 of 13 dogs in the mineralized group and all 9 dogs in the nonmineralized group. Functional outcome after surgery was poor in 3 dogs and good-to-excellent in 16. Mineralized and nonmineralized ST have many similarities. Although lameness is usually unilateral, the supraspinatus tendon may be affected bilaterally. Ultrasonography and MRI are good imaging techniques for detection of ST especially the nonmineralized form. Surgical treatment results in good recovery of limb function. Nonmineralized ST is a recently described disorder in dogs and evaluation of more cases is necessary to determine outcome after surgical or medical treatment.

  12. Twenty-four Years of Follow-Up for a Hanford Plutonium Wound Case

    International Nuclear Information System (INIS)

    Carbaugh, Eugene H.; Lynch, Timothy P.; Antonio, Cheryl L.; Medina-Del Valle, Fernando

    2010-01-01

    A 1985 plutonium puncture wound resulted in the initial deposition of 48 kBq of transuranic alpha activity, primarily 239Pu and 241Am, in a worker's right index finger. Surgical excisions in the week following reduced the long-term residual wound activity to 5.4 kBq, and 164 DTPA chelation therapy administrations over a 17-month period resulted in urinary excretion of about 7 kBq. The case was published in 1988, but now 20 additional years of follow-up data are available. Annual bioassay measurements have included wound counts, skeleton counts, liver counts, lung counts, axillary lymph node counts, and urinalyses for plutonium and 241Am. These measurements have shown relatively stable levels of 241Am at the wound site, with gradually increasing amounts of 241Am detected in the skeleton. Liver counts has shown erratic detection of 241Am, and lung counts indicate 241Am as shine from the axillary lymph nodes and skeleton. Urine excretion of 239Pu since termination of chelation therapy has typically ranged from 10 to 20 mBq d-1, with 241Am excretion being about 10% of that for 239Pu. In addition, the worker has undergone annual routine medical exams, which have not identified any adverse health effects associated with the intake.

  13. 77 FR 47631 - Agency Information Collection Activities: Request for Comments on Twenty-Four Proposed...

    Science.gov (United States)

    2012-08-09

    .... Title: NSPS for the Phosphate Fertilizer Industry (40 CFR Part 60, Subparts T, U, V, W and X). ICR...; OMB Control Number 2060-0582; expiration date January 31, 2013. (13) NSPS for the Phosphate Fertilizer... or operators of stationary sources which process mercury ore to recover mercury, use mercury chlor...

  14. Remission and rheumatoid arthritis: Data on patients receiving usual care in twenty-four countries

    DEFF Research Database (Denmark)

    Sokka, Tuulikki; Hetland, Merete Lund; Mäkinen, Heidi

    2008-01-01

    ,848 patients receiving usual care at 67 sites in 24 countries, was used for this study. Patients were clinically assessed by rheumatologists and completed a 4-page self-report questionnaire. The database was analyzed according to the following definitions of remission: American College of Rheumatology (ACR......: The overall remission rate was lowest using the ACR definition of remission (8.6%), followed by the Clin42 (10.6%), Clin28 (12.6%), CDAI (13.8%), MD remission (14.2%), and RAPID3 (14.3%); the rate of remission was highest when remission was defined using the DAS28 (19.6%). The difference between the highest...

  15. Remission and rheumatoid arthritis: Data on patients receiving usual care in twenty-four countries

    DEFF Research Database (Denmark)

    Sokka, Tuulikki; Hetland, Merete Lund; Mäkinen, Heidi

    2008-01-01

    OBJECTIVE: To compare the performance of different definitions of remission in a large multinational cross-sectional cohort of patients with rheumatoid arthritis (RA). METHODS: The Questionnaires in Standard Monitoring of Patients with RA (QUEST-RA) database, which (as of January 2008) included 5...

  16. Comparison of 44-hour and fixed 24-hour ambulatory blood pressure monitoring in dialysis patients.

    Science.gov (United States)

    Liu, Wenjin; Ye, Hong; Tang, Bing; Sun, Zhiping; Wen, Ping; Wu, Wenhui; Bian, Xueqing; Shen, Xia; Yang, Junwei

    2014-01-01

    The two most commonly used strategies to evaluate dialysis patients' blood pressure (BP) level are 44-hour and 24-hour ambulatory blood pressure monitoring (ABPM). The objective of this study was to find an appropriate 24-hour period that correlated well with the 44-hour BP level and determine the differences between these strategies. In a group of 51 dialysis patients, the authors performed 44-hour ABPM and extracted data for a fixed 24-hour ABPM. The fixed 24-hour ABPM started at 6 am on the nondialysis day. A strong correlation was found between all parameters of 44-hour and the fixed 24-hour ABPM, with paired sample t test showing only small magnitude changes in a few parameters. Both 24-hour ABPM and 44-hour ABPM were superior to clinic BP in predicting left ventricular mass index (LVMI) by multiple regression analysis. It was found that 44-hour ambulatory arterial stiffness index (AASI), but not 24-hour AASI, had a positive association with LVMI (r=0.328, P=.021). However, after adjustment for 44-hour systolic blood pressure, this association disappeared. Fixed 24-hour ABPM is a good surrogate of 44-hour ABPM to some extent, while 44-hour ABPM can provide more accurate and detailed information. ©2013 Wiley Periodicals, Inc.

  17. After-school enrichment and the activity theory: How can a management service organization assist schools with reducing the achievement gap among minority and non-minority students in science, technology, engineering, and mathematics (STEM) during the after-school hours?

    Science.gov (United States)

    Flowers, Reagan D.

    The primary purpose of this study was to investigate how a management service organization can assist schools with reducing the achievement gap between minority and non-minority students in science, technology, engineering, and mathematics (STEM) during the after-school hours. Developing a strategic plan through creating a program that provides support services for the implementation of hands-on activities in STEM for children during the after-school hours was central to this purpose. This Project Demonstrating Excellence (PDE), a social action project, also presents historical and current after-school program developments in the nation. The study is quantitative and qualitative in nature. Surveys were utilized to quantitatively capture the opinions of participants in the social action project on three specific education related issues: (1) disparity in academic motivation of students to participate in after-school STEM enrichment programs; (2) whether teachers and school administrators saw a need for STEM after-school enrichment; and (3) developing STEM after-school programs that were centered on problem-solving and higher-order thinking skills to develop students' interest in STEM careers. The sample consisted of 50 participants comprised of students, teachers, and administrators. The focus groups and interviews provided the qualitative data for the study. The qualitative sample consisted of 14 participants comprised of students, parents and teachers, administrators, an education consultant, and a corporate sponsor. The empirical data obtained from the study survey, focus groups, and interviews provided a comprehensive profile on the current views and future expectations of STEM after-school enrichment, student and school needs, and community partnerships with STEM companies. Results of the study and review of the implementation of the social action project, C-STEM (communication, science, technology, engineering, and mathematics) Teacher and Student Support

  18. Associations of Ischemic Lesion Volume With Functional Outcome in Patients With Acute Ischemic Stroke: 24-Hour Versus 1-Week Imaging.

    Science.gov (United States)

    Bucker, Amber; Boers, Anna M; Bot, Joseph C J; Berkhemer, Olvert A; Lingsma, Hester F; Yoo, Albert J; van Zwam, Wim H; van Oostenbrugge, Robert J; van der Lugt, Aad; Dippel, Diederik W J; Roos, Yvo B W E M; Majoie, Charles B L M; Marquering, Henk A

    2017-05-01

    Ischemic lesion volume (ILV) on noncontrast computed tomography at 1 week can be used as a secondary outcome measure in patients with acute ischemic stroke. Twenty-four-hour ILV on noncontrast computed tomography has greater availability and potentially allows earlier estimation of functional outcome. We aimed to assess lesion growth 24 hours after stroke onset and compare the associations of 24-hour and 1-week ILV with functional outcome. We included 228 patients from MR CLEAN trial (Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands), who received noncontrast computed tomography at 24-hour and 1-week follow-up on which ILV was measured. Relative and absolute lesion growth was determined. Logistic regression models were constructed either including the 24-hour or including the 1-week ILV. Ordinal and dichotomous (0-2 and 3-6) modified Rankin scale scores were, respectively, used as primary and secondary outcome measures. Median ILV was 42 mL (interquartile range, 21-95 mL) and 64 mL (interquartile range: 30-120 mL) at 24 hours and 1 week, respectively. Relative lesion growth exceeding 30% occurred in 121 patients (53%) and absolute lesion growth exceeding 20 mL occurred in 83 patients (36%). Both the 24-hour and 1-week ILVs were similarly significantly associated with functional outcome (both P <0.001). In the logistic analyses, the areas under the curve of the receiver-operator characteristic curves were similar: 0.85 (95% confidence interval, 0.80-0.90) and 0.87 (95% confidence interval, 0.82-0.91) for including the 24-hour and 1-week ILV, respectively. Growth of ILV is common 24-hour poststroke onset. Nevertheless, the 24-hour ILV proved to be a valuable secondary outcome measure as it is equally strongly associated with functional outcome as the 1-week ILV. URL: http://www.isrctn.com. Unique identifier: ISRCTN10888758. © 2017 American Heart Association, Inc.

  19. MODELS OF HOURLY DRY BULB TEMPERATURE AND ...

    African Journals Online (AJOL)

    Hourly meteorological data of both dry bulb temperature and relative humidity for 18 locations in Nigeria for the period 1995 to 2009 were analysed to obtain the mean monthly average and monthly hourly average of each of the two meteorological variables for each month for each location. The difference between the ...

  20. 24-Hour Academic Libraries: Adjusting to Change

    Science.gov (United States)

    Bowman, Adam C.

    2013-01-01

    The purpose of this study was to explore the adaptive measures that academic libraries perform when implementing and operating a 24-hour schedule. Five in-depth interviews were conducted with current managerial-level librarians at 24-hour academic libraries. The exploratory interviews revealed similar measures for security, budgeting, employee…

  1. 75 FR 2467 - Hours of Service

    Science.gov (United States)

    2010-01-15

    ...-consecutive-hour off-duty period long enough to provide restorative sleep regardless of the number of hours... short rest periods during the work day improve driver alertness in the operation of a CMV? How long should these rest periods be? At what point in the duty cycle or drive-time would short rest periods...

  2. Registrar working hours in Cape Town

    African Journals Online (AJOL)

    Nicky

    In the past surgical registrars were expected to work unusual- ly long hours. This was thought to provide better patient care, and to result in better registrar training. Junior doctors in the USA worked between 95 and 136 hours per week.1. The paradigm changed in 1984 after the death of Libby Zion in a New York hospital ...

  3. Cost-efficient staffing under annualized hours

    NARCIS (Netherlands)

    van der Veen, Egbert; Hans, Elias W.; Veltman, Bart; Berrevoets, Leo M.; Berden, Hubert J.J.M.

    2012-01-01

    We study how flexibility in workforce capacity can be used to efficiently match capacity and demand. Flexibility in workforce capacity is introduced by the annualized hours regime. Annualized hours allow organizations to measure working time per year, instead of per month or per week. An additional

  4. 20 CFR 801.304 - Business hours.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 3 2010-04-01 2010-04-01 false Business hours. 801.304 Section 801.304 Employees' Benefits BENEFITS REVIEW BOARD, DEPARTMENT OF LABOR ESTABLISHMENT AND OPERATION OF THE BOARD Action by the Board § 801.304 Business hours. The office of the Clerk of the Board at Washington, DC...

  5. 17 CFR 201.104 - Business hours.

    Science.gov (United States)

    2010-04-01

    ... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Business hours. 201.104 Section 201.104 Commodity and Securities Exchanges SECURITIES AND EXCHANGE COMMISSION RULES OF PRACTICE Rules of Practice General Rules § 201.104 Business hours. The Headquarters office of the Commission, at...

  6. HYBRID TEACHER TRAINING: THE CONSTRUCTION OF PEDAGOGICAL PRACTICE AS ARTICULATOR AXIS FOR THE USE OF TECHNOLOGIES IN AN INCLUSIVE SCHOOL

    Directory of Open Access Journals (Sweden)

    Danielle Aparecida do Nascimento dos Santos

    2013-07-01

    Full Text Available This paper aims to present data related to the preparation, implementation, monitoring, development and evaluation of Articulator Axis: Inclusion and Special Education of hybrid Pedagogy UNIVESP/UNESP course. It is explained the theoretical, methodological and practical contributions that supported the organization of the discipline, designed with the premise to train teachers in order to provide analysis tools on the policies and practices of school inclusion of students of Special Education. As well as offering elements to teachers who attend the course for an analysis of practices and resources that can be used in the context of an inclusive school, through the promotion of school activities that develop the skills of all. The discipline was developed in five (5 blocks of 24 (twenty four hours per week, which were proposed activities and studies on the activities related to elementary and high school, aggregated to Specialized Educational Service and the use of Digital Information and Communication Technologies, according to the specific educational needs of students of Special Education and considering its importance within the policies of inclusion and its application in school contexts linked to the disciplines of didactic contents of the course.

  7. Long Working Hours and Cognitive Function

    Science.gov (United States)

    Singh-Manoux, Archana; Ferrie, Jane E.; Gimeno, David; Marmot, Michael G.; Elovainio, Marko; Jokela, Markus; Vahtera, Jussi; Kivimäki, Mika

    2009-01-01

    This study examined the association between long working hours and cognitive function in middle age. Data were collected in 1997–1999 (baseline) and 2002–2004 (follow-up) from a prospective study of 2,214 British civil servants who were in full-time employment at baseline and had data on cognitive tests and covariates. A battery of cognitive tests (short-term memory, Alice Heim 4-I, Mill Hill vocabulary, phonemic fluency, and semantic fluency) were measured at baseline and at follow-up. Compared with working 40 hours per week at most, working more than 55 hours per week was associated with lower scores in the vocabulary test at both baseline and follow-up. Long working hours also predicted decline in performance on the reasoning test (Alice Heim 4-I). Similar results were obtained by using working hours as a continuous variable; the associations between working hours and cognitive function were robust to adjustments for several potential confounding factors including age, sex, marital status, education, occupation, income, physical diseases, psychosocial factors, sleep disturbances, and health risk behaviors. This study shows that long working hours may have a negative effect on cognitive performance in middle age. PMID:19126590

  8. Effects of renal sympathetic denervation on 24-hour blood pressure variability

    Directory of Open Access Journals (Sweden)

    Christine Stefanie Zuern

    2012-05-01

    Full Text Available Background: In patients with arterial hypertension, increased blood pressure (BP variability contributes to end organ damage independently from mean levels of arterial BP. Increased BP variability has been linked to alterations in autonomic function including sympathetic overdrive. We hypothesized that catheter-based renal sympathetic denervation (RDN confers beneficial effects on BPV. Methods and Results: Eleven consecutive patients with therapy-refractory arterial hypertension (age 68.9±7.0 years; baseline systolic BP 189±23mmHg despite medication with 5.6±2.1 antihypertensive drugs underwent bilateral RDN. Twenty-four hour ambulatory blood pressure monitoring (ABPM was performed before RDN and six months thereafter. BPV was primarily assessed by means of standard deviation of 24-hour systolic arterial blood pressures (SDsys. Secondary measures of BPV were maximum systolic blood pressure (MAXsys and maximum difference between two consecutive readings of systolic BP (deltamaxsys over 24 hours. Six months after RDN, SDsys, MAXsys and deltamaxsys were significantly reduced from 16.9±4.6mmHg to 13.5±2.5mmHg (p=0.003, from 190±22mmHg to 172±20mmHg (p<0.001 and from 40±15mmHg to 28±7mmHg (p=0.006, respectively, without changes in concomitant antihypertensive therapy. Reductions of SDsys, MAXsys and deltamaxsys were observed in 10/11 (90.9%, 11/11 (100% and 9/11 (81.8% patients, respectively. Although we noted a significant reduction of systolic office blood pressure by 30.4±27.7mmHg (p=0.007, there was only a trend in reduction of average systolic BP assessed from ABPM (149±19mmHg to 142±18mmHg; p=0.086.Conclusions: In patients with therapy-refractory arterial hypertension, RDN leads to significant reductions of BP variability. Effects of RDN on BPV over 24 hours were more pronounced than on average levels of BP.

  9. Long working hours and cancer risk

    DEFF Research Database (Denmark)

    Heikkila, Katriina; Nyberg, Solja T.; Madsen, Ida E. H.

    2016-01-01

    per week was associated with 1.60-fold (95% confidence interval 1.12–2.29) increase in female breast cancer risk independently of age, socioeconomic position, shift- and night-time work and lifestyle factors, but this observation may have been influenced by residual confounding from parity......Background: Working longer than the maximum recommended hours is associated with an increased risk of cardiovascular disease, but the relationship of excess working hours with incident cancer is unclear. Methods: This multi-cohort study examined the association between working hours and cancer risk...... in 116 462 men and women who were free of cancer at baseline. Incident cancers were ascertained from national cancer, hospitalisation and death registers; weekly working hours were self-reported. Results: During median follow-up of 10.8 years, 4371 participants developed cancer (n colorectal cancer: 393...

  10. SO2 8 Hour Nonattainment Areas

    Data.gov (United States)

    U.S. Environmental Protection Agency — This data layer identifies areas in the U.S. where air pollution levels have not met the National Ambient Air Quality Standards (NAAQS) for Sulfur dioxide 8 hour...

  11. Ozone Nonattainment Areas - 8 Hour (1997 Standard)

    Data.gov (United States)

    U.S. Environmental Protection Agency — This data layer identifies areas in the U.S. where air pollution levels have not met the National Ambient Air Quality Standards (NAAQS) for ozone over 8 hours and...

  12. U.S. Hourly Precipitation Data Publication

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This publication contains hourly precipitation amounts obtained from recording rain gages located at National Weather Service, Federal Aviation Administration, and...

  13. U.S. Hourly Precipitation Data

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Hourly Precipitation Data (HPD) is digital data set DSI-3240, archived at the National Climatic Data Center (NCDC). The primary source of data for this file is...

  14. Hourly Updated GNSS Orbit and Clock

    Science.gov (United States)

    Song, S.; Xue, J.

    2016-12-01

    With the development of the performance of GNSS, the hourly updated orbit and clock of GNSS are paid much more attention and used by more and more users because of the timeliness and high accuracy. The hourly GNSS orbit and clock are produced routinely in Shanghai Analysis Center(AC) of the International GNSS Monitoring and Assessment Service (iGMAS).In this article, the accuracy of hourly and 6-hourly updated ultra-rapid GPS,GLONASS,GALILEO,BDS orbit and clock (SHU1 and SHU6) are analyzed relative to the final production in detail. The analysis show that, in calculation session, there's no much difference between the mean SHU1 and SHU6 RMS and STD for GNSS orbit and clock. However, for BDS clock in prediction session, the RMS and STD of BDS SHU1 are 2.6ns and 0.5ns respectively, the RMS of BDS SHU6 increase from 2.7ns to 4.5ns from the 1st to the 6th hour prediction session, but there's no much changes of STD. For GPS clock in prediction session, the RMS and STD of GPS SHU1 is quite stable with 0.5ns and 0.2ns.The RMS of GPS SHU6 clock increase from 0.6ns to 1.0ns from the 1st to the 6th hour, but STD is stable at about 0.2ns.For the orbit in calculate session, the RMS of BDS SHU1 is a little less than that of SHU6,the RMS of GPS SHU1 and SHU6 orbit are approximately at the same level. In prediction session, the RMS of IGSO/MEO for BDS SHU1 is relative stable, but the RMS of SHU6 1st-6th hour prediction session increase from about 26.5cm to 32.7cm. The RMS of GPS SHU1 orbit's prediction session is about 3.4cm,but which increase from 3.3cm to 4.3cm for GPS SHU6 1st-6th hour prediction session.The comparison of GLONASS and GALILEO orbit and clock also will be described.The results show that the hourly update is more important for BDS at this stage.Moreover,some problems appearing in satellites and stations can be found earlier by 1 hourly updated frequency.

  15. Home within 24 hours of laparoscopic hysterectomy.

    Science.gov (United States)

    Chou, D C; Rosen, D M; Cario, G M; Carlton, M A; Lam, A M; Chapman, M; Johns, C

    1999-05-01

    We assessed the feasibility of safe discharge home within 24 hours following laparoscopic hysterectomy in 30 patients who met the inclusion criteria and consented to be enrolled in the study group. Patients were admitted on the day of their surgery with the expectation of discharge within 24 hours. Appropriate home nursing follow-up and phone contact by the surgical team were organized preoperatively. Inclusion criteria were: age 30-65 years, absence of any major medical history that would require prolonged hospitalization, availability of home support for the first 48 hours after discharge and presence of a working telephone line and an address within the area of the Community Home Nursing service. All 30 operative procedures were completed without incident. Six patients underwent total laparoscopic hysterectomy (TLH) (all the procedures of hysterectomy being performed laparoscopically including the suturing of uterine arteries, colpotomy and closure of the vaginal vault. The uterus was removed vaginally) and 24 patients underwent laparoscopic hysterectomy (LH) (this techniques differs from TLH in that the colpotomy was performed laparoscopically but the uterosacral ligaments were divided vaginally and the vault also was closed vaginally after the uterus was removed vaginally). The average operating time was 115 minutes (range 85-150 minutes) and the average blood loss was 97 mL (20-250 mL). There were no intraoperative complications, no requirement for transfusion and no readmission to hospital for any of the patients in the study. Postoperative complications were minor (umbilical cellulitis (1), intestinal colic (1)) and both were treated with resolution of the symptoms. Ninety per cent of patients in the study were discharged within 24 hours of their surgery, the average duration of stay being 22.9 hours (20-24 hours). Three patients were not fit for discharge at 24 hours postoperatively due to general lethargy, migraine and nausea; their average discharge time

  16. Information manager-2011-Vol 11

    African Journals Online (AJOL)

    Library _info_Sc_ 1

    training and retraining opportunities; quality assurance; entrepreneurship education; consortium building; decreased funding of libraries by funding authorities and parent institutions; decreased influence of librarians in tertiary institutions; and twenty-four hours library service. Information and Communication Technology.

  17. Long working hours and alcohol use

    DEFF Research Database (Denmark)

    Virtanen, Marianna; Jokela, Markus; Nyberg, Solja T

    2015-01-01

    OBJECTIVE: To quantify the association between long working hours and alcohol use. DESIGN: Systematic review and meta-analysis of published studies and unpublished individual participant data. DATA SOURCES: A systematic search of PubMed and Embase databases in April 2014 for published studies......, supplemented with manual searches. Unpublished individual participant data were obtained from 27 additional studies. REVIEW METHODS: The search strategy was designed to retrieve cross sectional and prospective studies of the association between long working hours and alcohol use. Summary estimates were...... countries. The pooled maximum adjusted odds ratio for the association between long working hours and alcohol use was 1.11 (95% confidence interval 1.05 to 1.18) in the cross sectional analysis of published and unpublished data. Odds ratio of new onset risky alcohol use was 1.12 (1.04 to 1...

  18. Persistence and Cycles in US Hours Worked

    OpenAIRE

    Guglielmo Maria Caporale; Luis A. Gil-Alana

    2012-01-01

    This paper analyses monthly hours worked in the US over the sample period 1939m1 – 2011m10 using a cyclical long memory model; this is based on Gegenbauer processes and characterised by autocorrelations decaying to zero cyclically and at a hyperbolic rate along with a spectral density that is unbounded at a non-zero frequency. The reason for choosing this specification is that the periodogram of the hours worked series has a peak at a frequency away from zero. The empirical results confirm th...

  19. Hourly wind speed analysis in Sicily

    Energy Technology Data Exchange (ETDEWEB)

    Bivona, S.; Leone, C. [Palermo Univ., Dip di Fisica e Technologie Relative, Palermo (Italy); Burlon, R. [Palermo Univ., Dip. di Ingegnaria Nucleare, Palermo (Italy)

    2003-07-01

    The hourly average wind speed data recorded by CNMCA (Centro Nazionale di Meteorologia e Climatologia Aeronautica) have been used to study the statistical properties of the wind speed at nine locations on Sicily. By grouping the observations month by month, we show that the hourly average wind speed, with calms omitted, is represented by a Weibull function. The suitability of the distribution is judged by the discrepancies between the observed and calculated values of the monthly average wind speed and of the standard deviation. (Author)

  20. The History of the Student Credit Hour.

    Science.gov (United States)

    Shedd, Jessica M.

    2003-01-01

    Traces the history of the student credit hour, designed at the end of the 19th century to translate high school work to college admissions officers. It was expanded to higher education to record elective course work and became widespread in response to calls to document workload and institutional productivity. (SLD)

  1. Estimator's electrical man-hour manual

    CERN Document Server

    Page, John S

    1999-01-01

    This manual's latest edition continues to be the best source available for making accurate, reliable man-hour estimates for electrical installation. This new edition is revised and expanded to include installation of electrical instrumentation, which is used in monitoring various process systems.

  2. 75 FR 9376 - Hours of Service

    Science.gov (United States)

    2010-03-02

    ... is the minimum time in each period necessary to provide restorative sleep? 2. Could the 14-hour on... FMCSA. A. Rest and On-Duty Time 1. Would mandatory short rest periods during the work day improve driver alertness in the operation of a CMV? How long should these rest periods be? At what point in the duty cycle...

  3. 75 FR 285 - Hours of Service

    Science.gov (United States)

    2010-01-05

    ... period long enough to provide restorative sleep regardless of the number of hours worked prior to the... split into two periods, what is the minimum time in each period necessary to provide restorative sleep... periods during the work day improve driver alertness in the operation of a CMV? How long should these rest...

  4. 10 CFR 26.205 - Work hours.

    Science.gov (United States)

    2010-01-01

    ..., training, or pre-shift briefings for special evolutions; and holdovers for interviews needed for event... of this subpart, a break is defined as an interval of time that falls between successive work periods... shall— (1) Review the actual work hours and performance of individuals who are subject to this section...

  5. Installation Service - Changes in opening hours

    CERN Multimedia

    GS Department

    2010-01-01

    For organizational matters, please note that, as from 15 March 2010, the Installation Service will have wen opening hours. The new schedule will be from 14:00 to 17:00 (Monday to Friday). Contact persons are: Martine Briant, Karine Robert and Claudia Bruggmann. The office address remains 73-3-014. Installation Service

  6. Electoral (Amendment) (Hours of Polling) Bill 2013

    DEFF Research Database (Denmark)

    Butler, Graham; Hunt, Brian; Doyle, Andrew

    2013-01-01

    Private Members' Bill (legislation) introduced in Dáil Éireann (House of Deputies), Houses of the Oireachtas (Parliament of Ireland). An Act to set voting hours for Dáil Elections, Dáil Bye-Elections, Presidential Elections, European Parliament Elections, Local Government Elections and Referenda ...

  7. The 24-Hour Mathematical Modeling Challenge

    Science.gov (United States)

    Galluzzo, Benjamin J.; Wendt, Theodore J.

    2015-01-01

    Across the mathematics curriculum there is a renewed emphasis on applications of mathematics and on mathematical modeling. Providing students with modeling experiences beyond the ordinary classroom setting remains a challenge, however. In this article, we describe the 24-hour Mathematical Modeling Challenge, an extracurricular event that exposes…

  8. Liquid-containing Refluxes and Acid Refluxes May Be Less Frequent in the Japanese Population Than in Other Populations: Normal Values of 24- hour Esophageal Impedance and pH Monitoring.

    Science.gov (United States)

    Kawamura, Osamu; Kohata, Yukie; Kawami, Noriyuki; Iida, Hiroshi; Kawada, Akiyo; Hosaka, Hiroko; Shimoyama, Yasuyuki; Kuribayashi, Shiko; Fujiwara, Yasuhiro; Iwakiri, Katsuhiko; Inamori, Masahiko; Kusano, Motoyasu; Hongo, Micho

    2016-10-30

    Twenty-four-hour esophageal impedance and pH monitoring allows detection of all types of reflux episodes and is considered the best technique for identifying gastroesophageal refluxes. However, normative data for the Japanese population are lacking. This multicenter study aimed to establish the normal range of 24-hour esophageal impedance and pH data both in the distal and the proximal esophagus in Japanese subjects. Forty-two healthy volunteers (25 men and 17 women) with a mean ± standard deviation age of 33.3 ± 12.4 years (range: 22-72 years) underwent a combined 24-hour esophageal impedance and pH monitoring. According to the physical and pH properties, distal or proximal esophageal reflux events were categorized. Median 45 reflux events occurred in 24 hours, and the 95th percentile was 85 events. Unlike previous reports, liquid-containing reflux events are median 25/24 hours with the 95th percentile of 62/24 hours. Acidic reflux events were median 11/24 hours with the 95th percentile of 39/24 hours. Non-acidic gas reflux events were median 15/24 hours with the 95th percentile of 39/24 hours. Proximal reflux events accounted for 80% of the total reflux events and were mainly non-acidic gas refluxes. About 19% of liquid and mixed refluxes reached the proximal esophagus. Unlike previous studies, liquid-containing and acidic reflux events may be less frequent in the Japanese population. Non-acidic gas reflux events may be frequent and a cause of frequent proximal reflux events. This study provides important normative data for 24-hour impedance and pH monitoring in both the distal and the proximal esophagus in the Japanese population.

  9. Serial Alberta Stroke Program early CT score from baseline to 24 hours in Solitaire Flow Restoration with the Intention for Thrombectomy study: a novel surrogate end point for revascularization in acute stroke.

    Science.gov (United States)

    Liebeskind, David S; Jahan, Reza; Nogueira, Raul G; Jovin, Tudor G; Lutsep, Helmi L; Saver, Jeffrey L

    2014-03-01

    The Alberta Stroke Program Early CT Score (ASPECTS) on baseline imaging is an established predictor of acute ischemic stroke outcomes. We analyzed change on serial ASPECTS at baseline and 24-hour imaging in the Solitaire Flow Restoration with the Intention for Thrombectomy (SWIFT) study to determine prognostic value and to identify subgroups with extensive injury after intervention. ASPECTS at baseline and 24 hours was independently scored in all anterior circulation SWIFT cases, blinded to all other trial data. ASPECTS at baseline, at 24 hours, and serial changes were analyzed with univariate and multivariate approaches. One hundred thirty-nine patients (mean age, 67 [SD, 12] years; 52% women; median National Institutes of Health Stroke Scale, 18 [interquartile range, 8-28]) with complete data at both time points were studied. Multivariate analyses showed that higher 24-hour ASPECTS predicted good clinical outcome (day 90 modified Rankin Scale, 0-2; odds ratio, 1.67; PScale outcomes (mean modified Rankin Scale, 4.4 versus 2.7; P<0.001). Twenty-four-hour ASPECTS provides better prognostic information compared with baseline ASPECTS. Predictors of dramatic infarct progression on ASPECTS are hyperglycemia, hypertension, and nonreperfusion. Serial ASPECTS change from baseline to 24 hours predicts clinical outcome, providing an early surrogate end point for thrombectomy trials. http://www.clinicaltrials.gov. Unique identifier: NCT01054560.

  10. Correlation of 24-hour urinary protein quantification with spot urine protein:creatinine ratio in lupus nephritis.

    Science.gov (United States)

    Matar, H E; Peterson, P; Sangle, S; D'Cruz, D P

    2012-07-01

    Twenty-four hour urine collection has been the foundation for monitoring patients with lupus nephritis. However, the use of protein to creatinine ratios in spot urine samples is now widely used. We aimed to evaluate the validity of this method cross-sectionally and longitudinally. A cross-sectional retrospective study was conducted. Records of 486 lupus nephritis patients were searched for paired results of 24-h quantification of urinary protein and a random spot urine protein to creatinine ratio and were examined over a three-year period. Ninety-five lupus nephritis patients had paired results and were included in the final analysis, male/female 14/81, mean age 36.5 years. Over a three-year period there were a total of 137 samples from 95 patients. For the entire dataset, there was a significant correlation between protein:creatinine ratio and 24-h urine collection protein (mg), Spearman Rho correlation coefficient was 0.869, p protein:creatinine ratio correlates well with 24-h urinary total protein excretion. Having a simple, reliable, reproducible and cost-effective test such as the spot urine protein:creatinine ratio is therefore a valuable tool with which to monitor disease progression.

  11. Short-term mechanisms of toxic action of airborne particulates underlie dose-rate dependent health risks and support control of one-hour airborne particle levels

    Energy Technology Data Exchange (ETDEWEB)

    Michaels, R.A.; Kleinman, M.T.

    1999-07-01

    Twenty-four-hour airborne particle mass levels permissible under the NAAQS have been associated with mortality and morbidity in communities, motivating reconsideration of the standard. Reports of shorter-term mechanisms of toxic action exerted by airborne PM and PM constituents are emerging. The mechanisms are diverse, but have in common a short time frame of toxic action, from minutes to hours. In view of documented PM excursions also lasting minutes to hours, this study inquires whether such short-term mechanisms might contribute to explaining daily morbidity and mortality. Toxicology experiments have demonstrated the harmfulness of brief exposure to PM levels in the range of observed excursions. This suggests that toxicological processes initiated by short-term inhalation of PM may exert clinically important effects, and that weak associations of 24-hour-average particle mass with mortality and morbidity may represent artifacts of stronger, shorter-term associations whose full magnitude remains to be quantified. In one study, the area of lung surface developing lesions was elevated in rats breathing the same four-hour dose of aerosols, when the four-hour average rate of aerosol delivery included a short-term (five-minute) burst fifty percent above the average dose rate. Elevations were observed with each of two aerosols tested. The magnitude of the effect was higher with one of the two aerosols, whose dose rate included four excursions rather than just one excursion. Particulate matter inhaled or instilled intratracheally has produced morbidity in animals, including apnea and electrophysiological effects in dogs. Other studies reveal that PM can kill rats via electrophysiological and possibly other mechanisms. PM has also adversely affected asthmatic people in controlled clinical settings during exercise or, in one study, at rest.

  12. The reliability of VCUG performed within 24 hours after injection of dextranomer/hyaluronic acid in patients with vesico-ureteral reflux.

    Science.gov (United States)

    Oh, Mi Mi; Park, Min Gu; Kim, Jin Wook; Yoo, Kee Hwan; Lee, Jung Won; Yoon, Cheol Yong; Park, Hong Seok; Moon, Du Geon

    2014-01-01

    To assess the reliability and negative predictive value of voiding cystourethrogram (VCUG) performed within 24 hours postoperatively. Forty patients (56 ureters) who underwent first injection of dextranomer/hyaluronic acid (Dx/HA) because of vesicoureteral reflux (VUR) were enrolled. Patients with previous reflux operation or neurogenic disorders were excluded. All patients underwent the hydrodistention implantation technique (HIT). Patients underwent VCUG within 24 hours postoperatively and after 6 months. Grade 0 and grade 1 were considered to be cured. Negative predictive values of VCUG performed within 24 hours postoperatively were assessed. The mean age of the patient was 98 ± 45.8 months. Twenty-seven patients were male and 13 patients were female. The number of refluxing ureters was 4, 12, 14, 12, and 14 in ascending order of VUR grade. Overall success rate of single injection therapy was 66.07%. Only 2 ureters with grade IV and 1 patient with grade V VUR showed failure on 24-hour VCUG. The success rates on 6 months VCUG were 100%, 83.3%, 78.57%, 50%, and 42.85% according to ascending order of VUR grade.The negative predictive value of 24-hour VCUG were 100%, 83.3%, 78.57%, 60.0%, and 46.15% according to ascending order of VUR grade. VUR grade was the only factor associated with the discrepancy. Positive but weak correlation was noted between the preoperative grade of VUR and the rate of discrepancy on Spearman correlation analysis (Spearman correlation coefficient = 0.303, P value = .018). Twenty-four hour VCUG cannot replace follow-up VCUG usually performed beyond 3 months postoperatively. Further studies are needed for confirmation of cure. Copyright © 2014 Elsevier Inc. All rights reserved.

  13. Long working hours and alcohol use

    DEFF Research Database (Denmark)

    Virtanen, Marianna; Jokela, Markus; Nyberg, Solja T

    2015-01-01

    OBJECTIVE: To quantify the association between long working hours and alcohol use. DESIGN: Systematic review and meta-analysis of published studies and unpublished individual participant data. DATA SOURCES: A systematic search of PubMed and Embase databases in April 2014 for published studies......, supplemented with manual searches. Unpublished individual participant data were obtained from 27 additional studies. REVIEW METHODS: The search strategy was designed to retrieve cross sectional and prospective studies of the association between long working hours and alcohol use. Summary estimates were...... obtained with random effects meta-analysis. Sources of heterogeneity were examined with meta-regression. RESULTS: Cross sectional analysis was based on 61 studies representing 333 693 participants from 14 countries. Prospective analysis was based on 20 studies representing 100 602 participants from nine...

  14. Long working hours and alcohol use

    DEFF Research Database (Denmark)

    Virtanen, Marianna; Jokela, Markus; Nyberg, Solja T

    2015-01-01

    OBJECTIVE: To quantify the association between long working hours and alcohol use. DESIGN: Systematic review and meta-analysis of published studies and unpublished individual participant data. DATA SOURCES: A systematic search of PubMed and Embase databases in April 2014 for published studies......, supplemented with manual searches. Unpublished individual participant data were obtained from 27 additional studies. REVIEW METHODS: The search strategy was designed to retrieve cross sectional and prospective studies of the association between long working hours and alcohol use. Summary estimates were...... obtained with random effects meta-analysis. Sources of heterogeneity were examined with meta-regression. RESULTS: Cross sectional analysis was based on 61 studies representing 333,693 participants from 14 countries. Prospective analysis was based on 20 studies representing 100,602 participants from nine...

  15. Late-night hours draw busy patients.

    Science.gov (United States)

    1999-10-01

    Planned Parenthood of Houston and southeast Texas is currently implementing a reproductive health care clinic with night-time hours. The clinic provides for the reproductive health care needs of college students with after-class jobs, women with two jobs or with night-shift employment, and all other women who do not have time to go to a daytime clinic. The clinic operates twice a month on Fridays and was initially open 10:30 p.m. - 7 a.m., but now it has changed its hours to 7:30 p.m. - 3:30 a.m. The clinic is staffed by one clinician and two clinic assistants, which attend to an average of 17-22 patients per night's schedule. Women who use the clinic keep their appointments better and do not have to wait so long for care.

  16. Resolving issues concerning Eskdalemuir geomagnetic hourly values

    Directory of Open Access Journals (Sweden)

    S. Macmillan

    2011-02-01

    Full Text Available The hourly values of the geomagnetic field from 1911 to 1931 derived from measurements made at Eskdalemuir observatory in the UK, and available online from the World Data Centre for Geomagnetism at http://www.wdc.bgs.ac.uk/, have now been corrected. Previously they were 2-point averaged and transformed from the original north, east and vertical down values in the tables in the observatory yearbooks. This paper documents the course of events from discovering the post-processing done to the data to the final resolution of the problem. As it was through the development of a new index, the Inter-Hour Variability index, that this post-processing came to light, we provide a revised series of this index for Eskdalemuir and compare it with that from another European observatory. Conclusions of studies concerning long-term magnetic field variability and inferred solar variability, whilst not necessarily consistent with one another, are not obviously invalidated by the incorrect hourly values from Eskdalemuir. This series of events illustrates the challenges that lie ahead in removing any remaining errors and inconsistencies in the data holdings of different World Data Centres.

  17. CERN takes part in Earth Hour

    CERN Document Server

    Anaïs Vernède

    2011-01-01

    From 8.30 to 9.30 p.m. on Saturday, 26 March 2011, the Globe of Science and Innovation will be plunged into darkness to mark CERN's participation in Earth Hour. A growing number of countries and cities across the planet are involved in this global initiative against climate change, which was launched by the WWF in 2007.   The lights on the Globe were switched off for the 2009 Earth Hour event. Along with individuals, companies and tourist attractions in thousands of towns and cities all over the world participating in the fourth annual Earth Hour event, CERN will turn off the lights of the Globe for 60 minutes at 8.30 p.m. on Saturday 26 March. CERN's participation in the initiative is one of several examples of its commitment to respect the environment and keep its ecological footprint to the minimum. A recent example under the green transport heading was the replacement of part of CERN's petrol vehicle fleet with cars running on natural gas with a view to reducing air pollution. Other examples...

  18. Operator alertness and performance on 8-hour and 12-hour work shifts

    International Nuclear Information System (INIS)

    Baker, T.L.; Campbell, S.S.; Dawson, D.; Moore-Ede, M.

    1989-01-01

    Recently, much attention has been paid to the alertness and performance problems of rotational shiftworkers in the nuclear power industry. Growing awareness of higher rates of human errors and accidents on night shifts and reports of operations personnel falling asleep on the job have contributed to the heightened interest in this subject. The industry is now considering the effects of different shift rotation systems, including evaluation of the most recent of industry trends in shift scheduling-schedules that include 12 hour work shifts. Surveys show that within the past 5 years about 20% of commercially operational nuclear power plants have instituted schedules that use only 12 hour shifts, or schedules using a combination of 8-hour and 12-hour shifts. Many more plants routinely use 12-hour work shifts during plant outages and refueling operations. In response to this growing trend, the NRC has funded research which is a first attempt to compare alertness, operator performance, and sleep-wake patterns in subjects working simulated 8-hour and 12-hour shifts at the Human Alertness Research Center (HARC), located at the Institute of Circadian Physiology in Boston, MA. This paper will describe in greater detail the design of the study, measurement techniques for alertness and sleep, work routine, work task performance measures, and cognitive performance test protocols. It will review the role of circadian factors in human alertness and performance, and discuss previous research findings in this area. It will discuss other variables that are known to influence human alertness in the workplace, such as caffeine, alcohol, and working environment. The physiological basis for shift worker sleep problems will be explained in the context of the ongoing research project at HARC. Finally, the paper presents previous research on shift work and fatigue which may be relevant to a comparison of 8-hour and 12-hour shifts

  19. Technology to Support Motivational Interviewing.

    Science.gov (United States)

    Gance-Cleveland, Bonnie; Ford, Loretta C; Aldrich, Heather; Oetzel, Keri Bolton; Cook, Paul; Schmiege, Sarah; Wold, Mary

    This paper reports the findings of motivational interviewing (MI) training with and without technology support on school-based health center (SBHC) providers' satisfaction with MI training, providers' self-report of behavioral counseling related to childhood overweight/obesity, and parents' perception of care after training. The effects of training and technology on MI is part of a larger comparative effectiveness, cluster randomized trial. Twenty-four SBHCs in six states received virtual training on MI. Half the sites received HeartSmartKids™, a bilingual (English/Spanish), decision-support technology. The technology generated tailored patient education materials. Standard growth charts were plotted and health risks were highlighted to support MI counseling. The results of the MI training included provider satisfaction with MI training and parent assessment of the components of MI in their child's care. Providers and parents were surveyed at baseline, after training, and six months after training. Providers were satisfied with training and reported improvements in counseling proficiency (ptechnology group reported significant improvement in provider support for healthy eating (p=0.04). Virtual training has the potential of preparing providers to use MI to address childhood obesity. Technology improved parent support for healthy eating. Future research should evaluate the impact of technology to support MI on patient outcomes. Childhood obesity guidelines emphasize that MI should be used to promote healthy weight in children. Training providers on MI may help more providers incorporate obesity guidelines in their practice. Copyright © 2017 Elsevier Inc. All rights reserved.

  20. Ethylene Oxide: Acute Four-Hour and One-Hour Inhalation Toxicity Testing in Rats

    Directory of Open Access Journals (Sweden)

    William M. Snellings

    2011-01-01

    Full Text Available Ethylene oxide was tested on groups of rats for either 4-hour or 1-hour inhalation exposure, followed by 14 days of observation. Groups of five Sprague-Dawley rats/sex were exposed, and clinical signs and mortality were recorded. Clinical signs noted included irregular breathing, absence of certain reflexes, and tremors. Rats that died had moderate to severe pulmonary congestion. The calculated LC50 values, reported as ppm by volume (with 95% confidence limits, were as follows. 4-hour LC50 values were 1972 (1887 to 2061 ppm for males; 1537 (1391 to 1698 ppm for females; 1741 (1655 to 1831 ppm for the combined sexes. The 1-hour LC50 values were 5748 (5276 to 6262 ppm for males; 4439 (4034 to 4884 ppm for females; 5029 (4634 to 5459 ppm for the combined sexes.

  1. Temporary new opening hours for Gate C

    CERN Multimedia

    GS Department

    2010-01-01

    Please note the new temporary opening hours for the gate C as from 22 September 2010 until 29 October 2010 (working days): Morning: between 7:00 a.m. and 9:00 a.m. Lunch: between 12:00 and 2:00 p.m. Evening: between 5:00 pm and 7:00 p.m. Traffic flow will be permitted in both directions during this period. Please minimize your speed accordingly and respect all road signs. GS-SEM Group General Infrastructure Services Department

  2. Gate A: changes to opening hours

    CERN Multimedia

    2015-01-01

    Due to maintenance work, the opening hours of Gate A (near Reception) will be modified between Monday, 13 and Friday, 17 April 2015.   During this period, the gate will be open to vehicles between 7 a.m. and 9.30 a.m., then between 4.30 p.m. and 7 p.m. It will be completely closed to traffic between 9.30 a.m. and 4.30 p.m. Pedestrians and cyclists may continue to use the gate. We apologise for any inconvenience and thank you for your understanding.

  3. New opening hours of the gates

    CERN Multimedia

    GS Department

    2009-01-01

    Please note the new opening hours of the gates as well as the intersites tunnel from the 19 May 2009: GATE A 7h - 19h GATE B 24h/24 GATE C 7h - 9h\t17h - 19h GATE D 8h - 12h\t13h - 16h GATE E 7h - 9h\t17h - 19h Prévessin 24h/24 The intersites tunnel will be opened from 7h30 to 18h non stop. GS-SEM Group Infrastructure and General Services Department

  4. Birth after 12 hours of oocyte refrigeration.

    Science.gov (United States)

    Coban, Onder; Hacifazlioglu, Oguzhan; Ciray, H Nadir; Ulug, Ulun; Tekin, H Ibrahim; Bahceci, Mustafa

    2010-12-01

    To assess cycle outcome after oocyte refrigeration. Case report. Private IVF center. One couple in a donor oocyte program. Intracytoplasmic sperm injection and blastocyst culture after refrigeration of oocytes for 12 hours. Birth. Fourteen two-pronuclei zygotes from 17 metaphase II refrigerated oocytes resulted in transfer of two blastocysts at day 5 and cryopreservation of six excess embryos at day 6. The patient delivered one healthy male baby after 38 weeks' gestation. The successful outcome of oocyte refrigeration indicates that this protocol could be useful in circumstances in which a delay in obtaining spermatozoa arises. Copyright © 2010 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

  5. WordPress 24-hour trainer

    CERN Document Server

    Plumley, George

    2015-01-01

    Create and expand feature-rich sites with no programming experience Ready to build, maintain, and expand your web site with WordPress but have no prior programming experience? WordPress 24-Hour Trainer, 3rd Edition is your book-and-video learning solution that walks you step-by-step through all the important features you will need to know. Lessons range from focused, practical everyday tasks to more advanced, creative features. Learn from an industry professional how to enter content, create pages, manage menus, utilize plug-ins, connect to social media, create membership and e-commerce site

  6. Three Mile Island - The hour-by-hour account of what really happened

    International Nuclear Information System (INIS)

    Stephens, M.

    1980-01-01

    An hour-by-hour account is given of the progression of events leading up to and during the accident at the Three Mile Island Unit 2 reactor. The emergency procedures followed, the evacuation of local residents and the decisions taken as the possibility of a meltdown became apparent are recorded in detail together with aspects of the media coverage and the problems of communication. (U.K.)

  7. Six-Hours-Rule - A Dogma for Military Surgery?

    National Research Council Canada - National Science Library

    Gerngross, Heinz; Kahle, Wilhelm

    2004-01-01

    Today, the six-hours-rule is a delicate item for military logistics and it is a great challenge for medical services to provide an adequate treatment during the first hours after wounding. DEFINITION: Six-hour-rule...

  8. Make a movie in 48 hours

    CERN Multimedia

    Brokk Toggerson

    2011-01-01

    This year, the 48-hour film project (48hfp) returns to Geneva after a one-year hiatus. Organized by Neal Hartman and the CERN film-making club, Open Your Eyes Films, the 48hfp challenges teams of film-makers to write, shoot, soundtrack and edit a 4 to 7 minute film in 48 hours from 4 to 6 November.   At the start of the festival, contestants picked their film genre from a hat. The films will be screened on 8 and 9 November, with the awards presentation on the 9th. The winner will receive a trip to the US to compete in the international version of the competition. “There are so many short films being made now," says Hartman, “I think, however, that the 48hfp allows a critical creative mass to form. The result is that these 20 teams make 20 better films than if each participant were making their own." Each team draws a genre from a hat and is given a character, a prop and a line of dialogue that must appear in their film. The genres run the gamut from &am...

  9. Comparison of nurse, system and quality patient care outcomes in 8-hour and 12-hour shifts.

    Science.gov (United States)

    Stone, Patricia W; Du, Yunling; Cowell, Rhabia; Amsterdam, Norma; Helfrich, Thomas A; Linn, Robert W; Gladstein, Amy; Walsh, Mary; Mojica, Lorraine A

    2006-12-01

    Many nurses desire 12-hour shifts. However, there are concerns about implementation. We sought to compare the effects of 8- and 12-hour shifts on nurse, system, and quality patient care outcomes. We used a cross-sectional design with data collected from multiple sources in 2003-2004, including a nurse survey and administrative and patient records. We studied hospital nurses and patients in general adult wards, with outcomes including burnout, job satisfaction, scheduling satisfaction, preferences, intention to stay, and employee safety. System outcomes included recruitment and turnover, staffing, absenteeism, and related costs. A variety of quality patient care outcomes were measured from the 3 different types of data. Thirteen New York City hospitals participated; 805 surveys were examined from 99 nursing units (response rate 42%). Compared with nurses working 8-hour shifts, those working 12-hour shifts were on average more satisfied with their jobs, experienced less emotional exhaustion, 10 times more likely to be satisfied with schedules, 2 times as likely to perceive 12-hour schedules as important, and 58% less likely to report missing shifts; units with 12-hour shifts had lower vacancy rates and weeks to fill the position (all P values < or =0.05). There were no differences in patient outcomes. Nurses working 12-hour shifts were more satisfied. There were no differences in quality outcomes. Flexibility and choice in shift length are important elements in a positive nurse work environment. This study represents an innovative attempt by a labor-management bargaining group to make an evidence-based decision. We encourage others to conduct similar studies.

  10. Households' hourly electricity consumption and peak demand in Denmark

    DEFF Research Database (Denmark)

    Møller Andersen, Frits; Baldini, Mattia; Hansen, Lars Gårn

    2017-01-01

    The electrification of residential energy demand for heating and transportation is expected to increase peak load and require additional generation and transmission capacities. Electrification also provides an opportunity to increase demand response. With a focus on household electricity......, for an individual household, the consumption of each of these technologies roughly doubles the household's consumption and considerably increases their potential for flexibility. Thus, in order to introduce incentives for demand flexibility, while considering reducing peak consumption, policy makers should...... consumption, we analyse the contribution of appliances and new services, such as individual heat pumps and electric vehicles, to peak consumption and the need for demand response incentives to reduce the peak.Initially, the paper presents a new model that represents the hourly electricity consumption profile...

  11. Comparative analysis of hourly and dynamic power balancing models for validating future energy scenarios

    DEFF Research Database (Denmark)

    Pillai, Jayakrishnan R.; Heussen, Kai; Østergaard, Poul Alberg

    2011-01-01

    , the model is verified on the basis of the existing energy mix on Bornholm as an islanded energy system. Future energy scenarios for the year 2030 are analysed to study a feasible technology mix for a higher share of wind power. Finally, the results of the hourly simulations are compared to dynamic frequency...... simulations incorporating the Vehicle-to-grid technology. The results indicate how the EnergyPLAN model may be improved in terms of intra-hour variability, stability and ancillary services to achieve a better reflection of energy and power capacity requirements....

  12. Capturing Neutrinos from a Star's Final Hours

    Science.gov (United States)

    Hensley, Kerry

    2018-04-01

    What happens on the last day of a massive stars life? In the hours before the star collapses and explodes as a supernova, the rapid evolution of material in its core creates swarms of neutrinos. Observing these neutrinos may help us understand the final stages of a massive stars life but theyve never been detected.A view of some of the 1,520 phototubes within the MiniBooNE neutrino detector. Observations from this and other detectors are helping to illuminate the nature of the mysterious neutrino. [Fred Ullrich/FNAL]Silent Signposts of Stellar EvolutionThe nuclear fusion that powers stars generates tremendous amounts of energy. Much of this energy is emitted as photons, but a curious and elusive particle the neutrino carries away most of the energy in the late stages of stellar evolution.Stellar neutrinos can be created through two processes: thermal processesand beta processes. Thermal processes e.g.,pair production, in which a particle/antiparticle pair are created depend on the temperature and pressure of the stellar core. Beta processes i.e.,when a proton converts to a neutron, or vice versa are instead linked to the isotopic makeup of the stars core. This means that, if we can observe them, beta-process neutrinos may be able to tell us about the last steps of stellar nucleosynthesis in a dying star.But observing these neutrinos is not so easilydone. Neutrinos arenearly massless, neutral particles that interact only feebly with matter; out of the whopping 1060neutrinos released in a supernova explosion, even the most sensitive detectors only record the passage of just a few. Do we have a chance of detectingthe beta-process neutrinos that are released in the final few hours of a stars life, beforethe collapse?Neutrino luminosities leading up to core collapse. Shortly before collapse, the luminosity of beta-process neutrinos outshines that of any other neutrino flavor or origin. [Adapted from Patton et al. 2017]Modeling Stellar CoresTo answer this question, Kelly

  13. Analysis of 24-hour versus 48-hour traffic counts for HPMS sampling.

    Science.gov (United States)

    2014-04-01

    The Illinois Department of Transportation (IDOT) has requested a waiver from the Federal Highway Administration (FHWA) to : allow IDOT to implement a 24-hour traffic-count program on the non-state HPMS routes, as opposed to the current Highway : Perf...

  14. The relationship of luteinizing hormone secretion to sleep in women during the early follicular phase: effects of sleep reversal and a prolonged three-hour sleep-wake schedule.

    Science.gov (United States)

    Kapen, S; Boyar, R; Hellman, L; Weitzman, E D

    1976-06-01

    The relationship of luteinizing hormone (LH) secretion to sleep in adult women was investigated in two ways: an acute 180 degrees sleep-wake cycle reversal in a group of six women and a schedule in which a young woman engaged in a three hour sleep-wake cycle (two hours awake, one hour allowed for sleep continuously for ten days--the study was carried out on the eighth day). Each subject in the reversal study had a baseline period during which plasma samples were collected every twenty minutes for twenty-four hours and nocturnal sleep was monitored electrophysiologically during the early follicular phase of the menstrual cycle. During a succeeding cycle, the study was repeated after sleep-wake reversal. LH secretory patterns were analyzed by comparing the 24-hour mean plasma LH concentration with the hourly averages in percentage terms, using Stage 2 sleep onset as the zero point. LH secretion was depressed to approximately the same degree in both the baseline and reversal studies. The average hourly percentage difference from the 24-hour mean for the four-hour period following sleep onset was -13.4% and -13.1% for the baseline and reversal, respectively. These percentage deviations represented practically the entire negative deviation for the 24-hour period in both studies. The difference between the first four-hour period after sleep onset and the second was significant. The subject on a three-hour cycle had a baseline in which a large decrease in LH secretion occurred after sleep onset (-52.2% during the third hour). Her LH secretory pattern during the three-hour sleep-wake schedule was characterized by a fall during sleep periods, particularly when slow wave sleep (SWS) predominated. However, no correlation was found between specific sleep stages and LH secretion in the six women of the reversal study. These results confirm a relationship of LH secretion to sleep in adult women, one which is different from that described during puberty.

  15. Ergonomic Microscope: Need of the Hour

    Science.gov (United States)

    Mhaske, Shubhangi Ashok; Ahmad, Malik Ajaz; Yuwanati, Monal B.; Prabhu, Shweta; Pardhe, Nilesh

    2015-01-01

    Background Prolonged use of conventional microscope develops musculo-skeletal injuries like chronic pain syndrome, including shoulder, neck, back aches & fatigue. Since the problems go unnoticed, the injuries can lead to some serious permanent damages. This further leads to a compromise in the health and welfare of the person and the institute. Hence, an understanding about the ergonomics is the need of the hour in this postmodern era. Inspite of few studies and surveys about ergonomics, there is still a steep rise in the musculoskeletal disorders. Aim of the Study The aim of our study was to gauge the general awareness of pathologists, microbiologists and oral pathologists towards ergonomics in their profession. Materials and Methods A cross-sectional survey based study was de­signed, which included a questionnaire. The questionnaire included multiple choice questions with four alternatives. Professionals (pathologists, microbiologists and oral pathologists) were included in the survey. Teaching faculty (Professors, Associate Professors and Lecturers) and Post graduate students formed the study group. Results and Observations The response to the questionnaire was 100%. Less than 50% of oral pathologists were aware of the importance of ergonomics in their profession. The most common site affected was neck and back. One of the drastic observations was that, Oral Pathologists suffered from a combination of problems affecting neck, back, eyes, headache, shoulders, arms and wrists. Conclusion Increase in our understanding regarding ergonomic­ally designed microscopes can increase our efficiency and in turn improve our general well-being. With improvements in ergonomics, professionals would be able to modify and optimize their working conditions. Certain guidelines need to be followed by the profes­sionals to reduce chances of musculoskeletal disorders. PMID:26155565

  16. The effect of static applied potential on the 24-hour impedance behavior of commercially pure titanium in simulated biological conditions.

    Science.gov (United States)

    Ehrensberger, Mark T; Gilbert, Jeremy L

    2010-04-01

    Potential step impedance analysis was utilized to evaluate the electrochemical impedance of commercially pure titanium (cpTi) samples that were polarized to static potentials (range from -1000 mV to +1000 mV vs. Ag/AgCl) and immersed in physiologically relevant electrolytes [phosphate buffered saline (PBS) and cell culture medium with 10% fetal bovine serum (AMEM + FBS)] for 24 hrs. The cpTi impedance outcomes were a complex function of voltage, solution constituents, and immersion time. In the 0 mV to +1000 mV range, oxide growth was observed over 24 hr immersion in both solutions based on decreasing current density (approximately 10(-6) A/cm(2) to approximately 10(-8) A/cm(2)) and increasing R(p) (200 kOmega cm(2) to approximately 10 MOmega cm(2)). Below 0 mV, the 24 hr R(p) decreased with negative potential to approximately 15 kOmega cm(2). After 24 hr immersion, oxide dissolution and/or adsorption of organic species caused the capacitance to increase at -1000 mV (AMEM + FBS & PBS) and at -600 mV (AMEM + FBS only). Twenty-four hours of immersion in AMEM + FBS at -1000 mV and -600 mV produced a surface coloration that is likely due to alteration of oxide valance state and/or doping level. This work shows that Ti surface oxide and its electrochemical behavior can be altered dramatically under sustained cathodic potentials.

  17. CMAQv502 Base AQS Hourly site compare output

    Data.gov (United States)

    U.S. Environmental Protection Agency — Monthly AQS hourly site compare output files for the CMAQv502 Base simulation. Monthly files contain hourly paired model/ob data for the AQS network. These data were...

  18. 19 CFR 360.107 - Hours of operation.

    Science.gov (United States)

    2010-04-01

    ... ANALYSIS SYSTEM § 360.107 Hours of operation. The automatic licensing system will generally be accessible... Commerce directly via fax during regular business hours. Should the system be inaccessible for an extended...

  19. Acute myocardial infarction as first manifestation of primary anti phospholipid syndrome in a twenty-four years old patient

    International Nuclear Information System (INIS)

    Uribe, Carlos E; Cardenas, Juan M; Cabrales, Jaime; Bohorquez, Ricardo; Roa, Nubia I; Beltran, Javier; Urina, Manuel

    2005-01-01

    Primary anti phospholipid syndrome is usually manifested with deep venous thrombosis, pulmonary thromboembolism and arterial thrombosis, including cerebrovascular accidents. We report the case of a previously healthy young patient who suffered acute myocardial infarction as the first manifestation of a primary anti phospholipid syndrome

  20. The effects of a twenty-four-week aquatic training program on muscular strength performance in healthy elderly women.

    Science.gov (United States)

    Tsourlou, Thomai; Benik, Athanasia; Dipla, Konstantina; Zafeiridis, Andreas; Kellis, Spiros

    2006-11-01

    The purpose of the present study was to determine the effectiveness of a 24-week aquatic training (AT) program, which included both aerobic and resistance components, on muscle strength (isometric and dynamic), flexibility, and functional mobility in healthy women over 60 years of age. Twenty-two subjects were assigned randomly to either an AT (n = 12) or a control (C, n = 10) group. Volunteers participated in a supervised shallow-water exercise program for 60 minutes a day, 3 days a week; the exercise program consisted of a 10-minute warm-up and stretching, 25 minutes of endurance-type exercise (dancing) at 80% of heart rate (HR)(max), 20 minutes of upper- and lower-body resistance exercises with specialized water-resistance equipment, and a 5-minute cool down. Maximal isometric torque of knee extensors (KEXT) and knee flexors (KFLEX) were evaluated by a Cybex Norm dynamometer, grip strength (HGR) was evaluated using a Jamar hydraulic dynamometer, and dynamic strength was evaluated via the 3 repetition maximum (3RM) test for chest press, knee extension, lat pull down, and leg press. Jumping performance was evaluated using the squat jump (SJ), functional mobility with the timed up-and-go (TUG) test, and trunk flexion with the sit-and-reach test. Body composition was measured using the bioelectrical impedance method. The AT induced significant improvements in KEXT (10.5%) and KFLEX (13.4%) peak torque, HGR strength (13%), 3RM (25.7-29.4%), SJ (24.6%), sit-and-reach (11.6%), and TUG (19.8%) performance. The AT group demonstrated a significant increase in lean body mass (3.4%). No significant changes in these variables were observed in the C group. The results indicate that AT, with both aerobic and resistance components, is an alternative training method for improving neuromuscular and functional fitness performance in healthy elderly women.

  1. Twenty-four months of antipsychotic treatment in children and adolescents with first psychotic episode: discontinuation and tolerability.

    Science.gov (United States)

    Noguera, Ana; Ballesta, Patricia; Baeza, Immaculada; Arango, Celso; de la Serna, Elena; González-Pinto, Ana; Parellada, Mara; Graell, Montserrat; Moreno, Carmen; Otero, Soraya; Castro-Fornieles, Josefina

    2013-08-01

    The Child and Adolescent First-Episode Psychosis Study is a longitudinal study of early-onset first psychotic episodes. This report describes the naturalistic psychopharmacological treatment administered during a 24-month follow-up period, as well as discontinuation rates, reasons for discontinuation, and adverse effects. The sample comprised 110 patients, aged 9 to 17 years, with a first psychotic episode. Pharmacological treatment, changes, reasons for discontinuation, and the UKU (Udvalg for Kliniske Undersogelser) Side Effect Rating Scale were registered at 6, 12, and 24 months of follow-up. Second-generation antipsychotics, especially risperidone, quetiapine, and olanzapine, were the most commonly used. The discontinuation rate was 44.5% at 6 months, 59.1% at 12 months, and 70.9% at 24 months. Discontinuation rates or reasons for discontinuation (adverse reaction, insufficient response, and other) did not differ significantly between antipsychotics. At 6 months, significant differences were found in body mass index increase and body mass index z score increase, which were higher with olanzapine, and in neurological effects, which were higher with risperidone; at 12 and 24 months, these differences were no longer significant. High maintenance rates were found in the clozapine group, although they had higher scores on the autonomic subscale of the UKU. A long follow-up period reveals high discontinuation rates similar to those observed in adults, particularly during the first year. No differences were found between antipsychotics. Differences in adverse effects were found at 6 months but not subsequently after changes in treatment. Clozapine had a high maintenance rate, and its tolerability was comparable to that of other antipsychotics.

  2. Twenty-four-year trends in the incidence of ischemic stroke in Sweden from 1987 to 2010.

    Science.gov (United States)

    Rosengren, Annika; Giang, Kok Wai; Lappas, Georgios; Jern, Christina; Torén, Kjell; Björck, Lena

    2013-09-01

    The incidence of stroke in Sweden increased between 1989 and 2000 among people aged ≤65 years, but more recent data on those aged >65 years are lacking. Through the Swedish Hospital Discharge and Cause of Death registries, we identified all cases of nonfatal and fatal ischemic stroke (IS) among people aged 18 to 84 years during 1987-2010 in Sweden. Of the 391 081 stroke cases identified, 1.6% were 18 to 44 years, 16.7% were 45 to 64 years, and 81.7% were 65 to 84 years. Among people aged 18 to 44 years, there was a continuous increase in the incidence of stroke of 1.3% (95% confidence interval, 0.8%-1.8%) per year for men and 1.6% (1.0%-2.3%) per year for women. Among men and women aged 45 to 64 years, slightly declining rates were observed from the late 1990s, with a mean annual decrease of 0.4% (0.1%-0.7%) among men and 0.6% (0.2%-1.0%) among women. Among men aged 65 to 84 years, a decrease of 3.7% in IS (3.4%-4.0%) per year was observed from the late 1990s. This was more marked in women, where an initial decrease of 2.5% (2.1%-2.9%) per year was followed by an accelerated decrease of 5.1% (4.4%-5.8%) after 2005. Mortality from IS decreased markedly in all age groups. The incidence of IS in elderly people in Sweden is now decreasing, whereas the decline in IS incidence in the middle-aged people is much less steep. The increasing incidence of stroke in the young, particularly if carried forward to an older age, is concerning.

  3. Exploring the relationship between cyberbullying and unnatural child death: an ecological study of twenty-four European countries

    Science.gov (United States)

    2014-01-01

    Background Internet risk has been recognised as a child safety problem, but evidence is insufficient to conclude that a child’s online risk exposure can lead to physical harm. This study aims to explore the ecological relationship between Internet risk exposure and unnatural child death. Methods Multiple secondary data sources were used: online exposure to content about self-harm, cyberbullying, and Internet addiction data (EU Kids Online survey, 2010); and mortality data (European Detailed Mortality Database, 2010 or the latest year if not available) of 24 European countries. Correlations were found using quasi-Poisson regression. Countries’ prevalence rates of psychiatric problems (European Social Survey Round 3 and 6, 2006 and 2012) were used to test for possible spuriousness. Results This study finds that countries with higher rates of cyberbullying were more likely to have a higher incidence of unnatural child death. A 1 percent rise in the prevalence of cyberbullying translated into a 28% increase in risk of unnatural child death (95% CI: 2%-57%). No evidence was found to substantiate confounding effect of the national prevalence of depressive symptoms or traditional bullying. Conclusions Explanations are given for the findings. We conclude that intervention programs designed to serve as precautionary measures for risk minimisation should be considered. PMID:25079144

  4. Twenty-four years after theYellowstone Fires: Are postfire lodgepole pine stands converging in structure and function?

    Science.gov (United States)

    Turner, Monica G; Whitby, Timothy G; Tinker, Daniel B; Romme, William H

    2016-05-01

    Disturbance and succession have long been of interest in ecology, but how landscape patterns of ecosystem structure and function evolve following large disturbances is poorly understood. After nearly 25 years, lodgepole pine (Pinus contorta var. latifolia) forests that regenerated after the 1988 Yellowstone Fires (Wyoming, USA) offer a prime opportunity to track the fate of disturbance-created heterogeneity in stand structure and function in a wilderness setting. In 2012, we resampled 72 permanent plots to ask (1) How have postfire stand structure and function changed between 11 and 24 yr postfire, and what variables explain these patterns and changes? (2) How has landscape-level (among-stand) variability in postfire stand structure and function changed between 11 and 24 yr postfire? We expected to see evidence of convergence beginning to emerge, but also that initial postfire stem density would still determine trajectories of biomass accumulation. After 24 yr, postfire lodgepole pine density remained very high (mean = 21,738 stems/ha, range = 0-344,067 stems/ha). Stem density increased in most plots between 11 and 24 yr postfire, but declined sharply where 11-yr-postfire stem density was > 72,000 stems/ha. Stems were small in high-density stands, but stand-level lodgepole pine leaf area, foliage biomass, and live aboveground biomass increased over time and with increasing stem density. After 24 yr, mean annual lodgepole pine aboveground net primary production (ANPP) was high (mean = 5 Mg · ha⁻¹ · yr⁻¹, range = 0-16.5 Mg · ha⁻¹ · yr⁻¹). Among stands, lodgepole pine ANPP increased with stem density, which explained 69% of the variation; another 8% of the variation was explained by environmental covariates. Early patterns of postfire lodgepole pine regeneration, which were contingent on prefire serotiny and fire severity, remained the dominant driver of stand structure and function. We observed mechanisms that would lead to convergence in stem density (structure) over time, but it was landscape variation in functional variables that declined substantially. Stand structure and function have not converged across the burned landscape, but our evidence suggests function will converge sooner than structure.

  5. Exploring the relationship between cyberbullying and unnatural child death: an ecological study of twenty-four European countries.

    Science.gov (United States)

    Fu, King-wa; Chan, Chung-hong; Ip, Patrick

    2014-07-30

    Internet risk has been recognised as a child safety problem, but evidence is insufficient to conclude that a child's online risk exposure can lead to physical harm. This study aims to explore the ecological relationship between Internet risk exposure and unnatural child death. Multiple secondary data sources were used: online exposure to content about self-harm, cyberbullying, and Internet addiction data (EU Kids Online survey, 2010); and mortality data (European Detailed Mortality Database, 2010 or the latest year if not available) of 24 European countries. Correlations were found using quasi-Poisson regression. Countries' prevalence rates of psychiatric problems (European Social Survey Round 3 and 6, 2006 and 2012) were used to test for possible spuriousness. This study finds that countries with higher rates of cyberbullying were more likely to have a higher incidence of unnatural child death. A 1 percent rise in the prevalence of cyberbullying translated into a 28% increase in risk of unnatural child death (95% CI: 2%-57%). No evidence was found to substantiate confounding effect of the national prevalence of depressive symptoms or traditional bullying. Explanations are given for the findings. We conclude that intervention programs designed to serve as precautionary measures for risk minimisation should be considered.

  6. United States non-Hodgkin's lymphoma surveillance by occupation 1984-1989: a twenty-four state death certificate study.

    Science.gov (United States)

    Figgs, L W; Dosemeci, M; Blair, A

    1995-06-01

    Death certificates from 23,890 male and female non-Hodgkin's lymphoma (NHL) cases and 119,450 noncancer controls from 24 states for the period 1984-1989 were used to generate hypotheses regarding occupational associations. Cases were frequency matched by age, race, and gender with five controls per case. Odds ratios were calculated for 231 industries and 509 occupations. Significant associations were observed for a variety of white-collar professionals (i.e., real estate agents, secretaries, bookkeepers, teachers, postal employees, business agents, engineers, chemists, and medical professionals) and blue-collar occupations (i.e., firefighters, farm managers, aircraft mechanics, electronic repairers, mining machine operators, and crane and tower operators).

  7. "Hour of Code": Can It Change Students' Attitudes toward Programming?

    Science.gov (United States)

    Du, Jie; Wimmer, Hayden; Rada, Roy

    2016-01-01

    The Hour of Code is a one-hour introduction to computer science organized by Code.org, a non-profit dedicated to expanding participation in computer science. This study investigated the impact of the Hour of Code on students' attitudes towards computer programming and their knowledge of programming. A sample of undergraduate students from two…

  8. Hourly Electricity Prices in Day-Ahead Markets

    NARCIS (Netherlands)

    R. Huisman (Ronald); C. Huurman; R.J. Mahieu (Ronald)

    2007-01-01

    textabstractThis paper focuses on the characteristics of hourly electricity prices in day-ahead markets. In these markets, quotes for day-ahead delivery of electricity are submitted simultaneously for all hours in the next day. The same information set is used for quoting all hours of the day. The

  9. 19 CFR 101.6 - Hours of business.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Hours of business. 101.6 Section 101.6 Customs... GENERAL PROVISIONS § 101.6 Hours of business. Except as specified in paragraphs (a) through (g) of this section, each CBP office shall be open for the transactions of general CBP business between the hours of 8...

  10. Can health technologies be assessed using routine data?

    Science.gov (United States)

    Stevens, Andrew J; Raftery, James; Roderick, Paul

    2005-01-01

    The potential of routine data for health technology assessment (HTA) in the United Kingdom was assessed. Compiled were a comprehensive list of routine databases, their classification according to data characteristics, literature review on their current use, and their comparison with key topics identified as priorities for HTA. Two hundred seventy health-care databases for England or the English regions were identified. Twenty-four included data on both health technology and patient health state. Eleven found some published use in effectiveness evaluation. Of 140 prioritized health technologies, only 22 could be identified in routine databases. Routine data are plentiful but of limited use in HTA. The data sets usually do not include the effect of treatments. Coding is inadequate, and confidentiality regulations will make matters worse. Both need urgent attention.

  11. ρDCCA applied between air temperature and relative humidity: An hour/hour view

    Science.gov (United States)

    Zebende, G. F.; Brito, A. A.; Silva Filho, A. M.; Castro, A. P.

    2018-03-01

    In this paper we propose to study the cross-correlation between the air temperature and the air relative humidity using the DCCA cross-correlation coefficient ρDCCA. We choose four cities (meteorological stations) located in the State of Bahia (Brazil), as our case study. Our data were available hourly from the Brazilian Institute of Meteorology. Accordingly, in addition to showing that the variables have a negative cross-correlation, we present a new vision about these variables, producing the detrended cross-correlation contour map. As a result, we can see (or not) islands of cross-correlations, that depend on the local time and also the time scale involved.

  12. Construction-man hour estimation for nuclear power plants

    International Nuclear Information System (INIS)

    Paek, J.H.

    1987-01-01

    This study centers on a statistical analysis of the preliminary construction time, main construction time, and total construction man hours of nuclear power plants. The use of these econometric techniques allows the major man hour driving variables to be identified through multivariate analysis of time-series data on over 80 United States nuclear power plants. The analysis made in this study provides a clearer picture of the dynamic changes that have occurred in the man hours of these plants when compared to engineering estimates of man hours, and produces a tool that can be used to project nuclear power plant man hours

  13. Full reconstruction of a 14-qubit state within four hours

    International Nuclear Information System (INIS)

    Hou, Zhibo; Zhong, Han-Sen; Tian, Ye; Xiang, Guo-Yong; Li, Chuan-Feng; Guo, Guang-Can; Dong, Daoyi; Wang, Yuanlong; Qi, Bo; Li, Li; Nori, Franco

    2016-01-01

    Full quantum state tomography (FQST) plays a unique role in the estimation of the state of a quantum system without a priori knowledge or assumptions. Unfortunately, since FQST requires informationally (over)complete measurements, both the number of measurement bases and the computational complexity of data processing suffer an exponential growth with the size of the quantum system. A 14-qubit entangled state has already been experimentally prepared in an ion trap, and the data processing capability for FQST of a 14-qubit state seems to be far away from practical applications. In this paper, the computational capability of FQST is pushed forward to reconstruct a 14-qubit state with a run time of only 3.35 hours using the linear regression estimation (LRE) algorithm, even when informationally overcomplete Pauli measurements are employed. The computational complexity of the LRE algorithm is first reduced from ∼10 19 to ∼10 15 for a 14-qubit state, by dropping all the zero elements, and its computational efficiency is further sped up by fully exploiting the parallelism of the LRE algorithm with parallel Graphic Processing Unit (GPU) programming. Our result demonstrates the effectiveness of using parallel computation to speed up the postprocessing for FQST, and can play an important role in quantum information technologies with large quantum systems. (paper)

  14. A Global Stem Cell Niche – Need of the Hour

    Directory of Open Access Journals (Sweden)

    Editorial

    2014-11-01

    Full Text Available A Global Stem Cell Niche – Need of the Hour The time, this issue is online, most of us would be aware of the world’s first induced pluripotent stem (iPS cell based clinical trial for age-related macular degeneration which is underway in Japan. The first patient in the trial has been transplanted with the cell sheets of retinal pigment epithelium derived from the patient's own iPS cells in September 2014 [1] and is under follow-up. As we are overwhelmed with this scientific feat, an analysis of the trends of stem cell based clinical trials globally [2] makes us realize that there is a wide variation in the clinical trials between the nations, with differences being observed in diseases that are given priority, cell sources that are being chosen, principles of ethics, regulatory frameworks etc,. A realization dawns that the scientific communities in each group or country have their own niche of cell based research leading to the above mentioned variations. While in Japan, a hi-tech iPS trial has started, Mazini et al from Morocco, describe the hurdles in creating a public cord blood bank in their country with a background of the regulatory guidelines existing there while Lee et al's work from the United States of America (USA focuses on microencapsulation of adipose derived stem cells. While each of the above subject are equally important, a global consortium is the need of the hour, where interactions among all the stake holders of cell based therapies can be established for enabling exchange of information, technology, solutions and products, thereby avoiding repetition of the same work, while gaining the insight of different viewpoints into solving an issue which could be of significance either to a local community or the entire global society. References: Reardon S, Cyranoski D. Japan stem-cell trial stirs envy. Nature. 2014 ;513(7518:287-8. Li MD, Atkins H, Bubela T. The global landscape of stem cell clinical trials. Regen Med. 2014;9(1:27-39.

  15. Interns shall not sleep: the duty hours boomerang

    Directory of Open Access Journals (Sweden)

    Quan SF

    2017-04-01

    Full Text Available No abstract available. Article truncated after 150 words. On March 10, 2017, the Accreditation Council for Graduate Medical Education (ACGME announced revisions to its common program requirements related to duty hours (1. Effective on July 1, 2017, the most important change will be an increase in the maximum consecutive hours that an intern may work. Interns will now be able to continuously perform patient care work up to a maximum of 24 hours with an additional 4 hours for managing care transitions. This reverses the controversial reduction to 16 hours that occurred in 2011 (2. The regulation of house staff duty hours formally began in the late 1980s. It was precipitated largely because of the publicity resulting from the 1984 death of Libby Zion in a New York teaching hospital that was attributed partly to poor decisions made by fatigued and overworked house staff (3. Consequently, the state of New York in 1989 passed laws restricting the …

  16. Forecasting Day-Ahead Electricity Prices: Utilizing Hourly Prices

    OpenAIRE

    Raviv, Eran; Bouwman, Kees E.; van Dijk, Dick

    2013-01-01

    This discussion paper led to a publication in 'Energy Economics' , 2015, 50, 227-239. The daily average price of electricity represents the price of electricity to be delivered over the full next day and serves as a key reference price in the electricity market. It is an aggregate that equals the average of hourly prices for delivery during each of the 24 individual hours. This paper demonstrates that the disaggregated hourly prices contain useful predictive information for the daily average ...

  17. Review of 12-hour shifts at nuclear generating stations

    International Nuclear Information System (INIS)

    Smiley, A.; Moray, N.P.

    1989-04-01

    This project reviewed the practice of 12-hour shift work schedules at nuclear power plants, and its relationship to safety. The current literature was examined for information on accidents, fatigue and personal preferences. Interviews with operators and maintainers showed that these groups had attitude and preference differences related to both 12 hour shift schedules and overtime work opportunities. Several factors related to 12-hour schedules were identified which could affect safety, but which have not been adequately considered. (24 refs.)

  18. Working hours and health behaviour among nurses at public hospitals

    Directory of Open Access Journals (Sweden)

    Juliana da Costa Fernandes

    2013-09-01

    Full Text Available OBJECTIVE: to analyse the differences between genders in the description in the professional, domestic and total work hours and assess its association with health-related behaviour among nurses. METHODS: this is a transversal study carried out in 18 different public hospitals in the municipality of Rio de Janeiro. The data collection procedure was based on questionnaires. All nurses working with assistance were considered eligible (n=2,279. RESULTS: men and women showed significant differences in relation to working hours. The female group showed longer domestic and total work hours when compared to the group of men. In contrast, the number of hours spent on professional work was higher among men. For the women, both the professional hours and total work hours were often associated with excessive consumption of fried food and also coffee, lack of physical exercise and also the greater occurrence of overweight and obesity. CONCLUSION: both the professional hours and the domestic work hours need to be taken into account in studies about health, self-care and also the care provided within the context of nursing workers, particularly among women. The results add weight to the need for actions for health promotion in this occupational group and the importance of assessing the impact of long working hours on the health of workers.

  19. Evaluation of a twelve-hour/day shift schedule

    International Nuclear Information System (INIS)

    Lewis, P.M.; Swaim, D.J.

    1986-01-01

    In April 1985, the operating crews at the Fast Flux Test Facility near Richland, Washington, changed their rotating shift schedule from an 8-hour to a 12-hour a day work schedule. The primary purpose of the change was to reduce the attrition of operators by increasing their job satisfaction. Eighty-four percent of the operators favored the change. A program was established to evaluate the effects on plant performance, operator alertness, attrition, sleep, health, job satisfaction, and off-the-job satisfaction. Preliminary results from that evaluation program indicate that the 12-hour shift schedule is a reasonable alternative to an 8-hour schedule at this facility

  20. Do economic stresses influence child work hours on family farms?

    Science.gov (United States)

    Gadomski, Anne; de Long, Rachel; Burdick, Patrick; Jenkins, Paul

    2005-01-01

    Economic stresses are a frequently cited reason for children doing farm work. To explore the relationship between economic indicators and child agricultural work hours between January 2001 and October 2003. This ecologic study design compares trends in aggregate child work hours with national and regional economic indicators. Child work hours were obtained from quarterly surveillance data from a randomized field trial of agricultural task guidelines for children. 2,360 children living or working on 845 farms in central New York participated in the original study. The relationship between child work hours and three economic indicators: national all farm index (AFI) ratio, national fuel index, and regional milk prices was analyzed using times series plots, correlation, and multiple linear regression. The AFI ratio was positively correlated with child work hours (r = 0.49, p = 0.008) but there was no significant correlation between child work hours and fuel or milk prices. Multiple linear regression demonstrated that the relationship between AFI and child work hours is independent of a seasonal effect. Increased child work hours may be associated with periods of higher farm sector productivity, rather than economic stress per se. Findings are limited by the ecologic study design, use of national economic indicators, and the limited number of cycles of child work hours available for time series analysis. Economic conditions may influence decisions about children's farm work.

  1. Migration plans and hours of work in Malaysia.

    Science.gov (United States)

    Gillin, E D; Sumner, D A

    1985-01-01

    "This article describes characteristics of prospective migrants in the Malaysian Family Life Survey and investigates how planning to move affects hours of work. [The authors] use ideas about intertemporal substitution...to discuss the response to temporary and permanent wage expectations on the part of potential migrants. [An] econometric section presents reduced-form estimates for wage rates and planned migration equations and two-stage least squares estimates for hours of work. Men currently planning a move were found to work fewer hours. Those originally planning only a temporary stay at their current location work more hours." excerpt

  2. Long working hours as a risk factor for atrial fibrillation

    DEFF Research Database (Denmark)

    Kivimäki, Mika; Nyberg, Solja T.; Batty, G. David

    2017-01-01

    Aims Studies suggest that people who work long hours are at increased risk of stroke, but the association of long working hours with atrial fibrillation, the most common cardiac arrhythmia and a risk factor for stroke, is unknown. We examined the risk of atrial fibrillation in individuals working...... confounding factors, such as obesity, risky alcohol use and high blood pressure, had little impact on this association. Conclusion Individuals who worked long hours were more likely to develop atrial fibrillation than those working standard hours....

  3. Influence of weight status on 24-hour urine composition in adults without urolithiasis: A nationwide study based on a Chinese Han population.

    Directory of Open Access Journals (Sweden)

    Tuo Deng

    Full Text Available This study sought to explore the influence of different body weight statuses on 24-hour urine compositions in adults without urolithiasis based on a nationwide study of a Chinese Han population.Twenty-four-hour urine samples from 584 Chinese Han adults without urolithiasis in six cities were analyzed. The participants were divided into four body weight status types according to their body mass indices (BMIs according to WHO guidelines. The baseline characteristics and 24-hour urine compositions of the standard weight group were compared with those of the underweight, overweight and obese groups. The influences of different body weight statuses on the 24-hour urine compositions were explored using univariate and multivariate logistic regressions.The numbers of participants in the underweight, standard weight, overweight and obese status groups were 24, 376, 149 and 35, respectively. The overweight and obese groups suffered significantly higher risks of hypertension and diabetes mellitus than the standard weight group. In the univariate analyses, compared with the standard weight group, the overweight group had significantly higher levels of urine citrate (mean difference [MD] = 0.51 mmol, 95% confidence interval [CI]: 0.15-0.87, P = 0.001, potassium (MD = 6.63 mmol, 95% CI: 1.13-12.14, P = 0.01 and magnesium (MD = 0.38 mmol, 95% CI: 0.08-0.69, P = 0.014. Significant increases in urine citrate (MD = 0.85 mmol, 95% CI: 0.01-1.68, P = 0.046, magnesium (MD = 0.69 mmol, 95% CI: 0.13-1.25, P = 0.016 and phosphate (MD = 2.28 mmol, 95% CI: 0.03-4.54, P = 0.047 were found in the obese group. No significant differences were detected between the standard weight and underweight groups. In the multivariate logistic regression analyses, we only observed significantly higher levels of urine potassium (odds ratio [OR] = 1.02, 95% CI: 1.00-1.04, P = 0.03 in the overweight group and phosphate (OR = 1.32, 95% CI: 1.05-1.66, P = 0.018 in the obese group when

  4. CORRELATION OF SPOT URINE ALBUMIN AND 12-HOUR URINE PROTEIN WITH 24-HOUR URINE PROTEIN IN PRE-ECLAMPSIA

    Directory of Open Access Journals (Sweden)

    S. Vinayachandran

    2017-11-01

    Full Text Available BACKGROUND Pre-eclampsia is defined as the development of new-onset hypertension in the second half of pregnancy often accompanied by new-onset proteinuria with other signs and symptoms. Proteinuria is defined by the excretion of 300 mg or more of protein in a 24-hour urine collection. To avoid time consumed in collection of 24-hour urine specimens, efforts have been made to develop faster methods to determine concentration of urine protein. Preliminary studies have suggested that 12-hour urine protein collection maybe adequate for evaluation of pre-eclampsia with advantage of early diagnosis and treatment of pre-eclampsia as well as potential for early hospital discharge and increased compliance with specimen collection. The aim of the study is to evaluate and correlate spot urine albumin and 12-hour urine protein with 24-hour urine protein in pre-eclampsia. MATERIALS AND METHODS A diagnostic evaluation study- a 24-hour urine protein, 12-hour urine protein and spot urine albumin results are analysed. Correlation of 12-hour urine protein and spot urine albumin with 24-hour urine protein is analysed using SPSS software. The strength of correlation was measured by Pearson’s correlation coefficient (r. Student’s t-test and Chi-square tests were used to compare patients with and without 24-hour urine protein ≥300 mg. Probability value of 165 mg with 24-hour urine protein ≥300 mg suggest that this test has role in the evaluation of women with suspected pre-eclampsia and could be substituted for 24-hour urine protein as a simple, faster and cheaper method.

  5. No Correlation Between Work-Hours and Operative Volumes

    DEFF Research Database (Denmark)

    Kjærgaard, Jane; Sillesen, Martin; Beier-Holgersen, Randi

    2016-01-01

    OBJECTIVE: Since 2003, United States residents have been limited to an 80-hour workweek. This has prompted concerns of reduced educational quality, especially inadequate operating exposure. In contrast, the Danish surgical specialty-training program mandates a cap on working hours of 37 per week....

  6. Human prolactin - 24-hour pattern with increased release during sleep.

    Science.gov (United States)

    Sassin, J. F.; Weitzman, E. D.; Kapen, S.; Frantz, A. G.

    1972-01-01

    Human prolactin was measured in plasma by radioimmunoassay at 20-minute intervals for a 24-hour period in each of six normal adults, whose sleep-wake cycles were monitored polygraphically. A marked diurnal variation in plasma concentrations was demonstrated, with highest values during sleep. Periods of episodic release occurred throughout the 24 hours.

  7. Correlation between sunshine hours and climatic parameters at four ...

    African Journals Online (AJOL)

    One of the most important factors in solar energy production is related to the predictability of sunshine hours. The objective of this study is to assess the correlation between sunshine hours and relative humidity, cloud cover, maximum and minimum temperature, for the purpose of identifying the most appropriate ...

  8. Breastfeeding during the first hour of life and neonatal mortality

    Directory of Open Access Journals (Sweden)

    Cristiano Siqueira Boccolini

    2013-03-01

    Conclusion: The protective effect of breastfeeding during the first hour of life on neonatal mortality in this ecological study is consistent with findings from previous observational studies, indicating the importance of adopting breastfeeding within the first hour as a routine neonatal care practice.

  9. 12 CFR 905.3 - Location and business hours.

    Science.gov (United States)

    2010-01-01

    ... Location and business hours. (a) Location. All office units of the Finance Board are located at 1777 F... 12 Banks and Banking 7 2010-01-01 2010-01-01 false Location and business hours. 905.3 Section 905.3 Banks and Banking FEDERAL HOUSING FINANCE BOARD FEDERAL HOUSING FINANCE BOARD ORGANIZATION AND...

  10. Stochastic Simulation of Hourly Average Wind Speed in Umudike ...

    African Journals Online (AJOL)

    Ten years of hourly average wind speed data were used to build a seasonal autoregressive integrated moving average (SARIMA) model. The model was used to simulate hourly average wind speed and recommend possible uses at Umudike, South eastern Nigeria. Results showed that the simulated wind behaviour was ...

  11. Emotional exhaustion may trigger cut in working hours

    NARCIS (Netherlands)

    Koppes, L.

    2012-01-01

    Researchers in the Netherlands have been examining to what extent workers are modifying their hours to cope with high levels of work-related emotional exhaustion. Findings reveal that most full-time employees would prefer a cut in their hours, with those reporting emotional exhaustion wanting a

  12. Estimating Software Effort Hours for Major Defense Acquisition Programs

    Science.gov (United States)

    Wallshein, Corinne C.

    2010-01-01

    Software Cost Estimation (SCE) uses labor hours or effort required to conceptualize, develop, integrate, test, field, or maintain program components. Department of Defense (DoD) SCE can use initial software data parameters to project effort hours for large, software-intensive programs for contractors reporting the top levels of process maturity,…

  13. Surgical resident working hours in South Africa | Kong | South ...

    African Journals Online (AJOL)

    Background: Surgical training has undergone major changes worldwide, especially with regard to work hour regulations. Very little is known regarding the situation in South Africa, and how it compares with other countries. Method: We conducted a retrospective review of the hours worked by surgical residents in a major ...

  14. Reducing Teaching Hours in Tertiary Japanese: A Case Study

    Science.gov (United States)

    Ascione, Judith; Bramley, Nicolette

    2012-01-01

    The primary objective of this study is to identify the effect of reducing teaching hours from five to four face-to-face teaching hours in a beginners' Japanese course at the University of Canberra, Australia. The results of 2007, 2008 and 2009 cohorts of Japanese students' results are compared to consider the effect of the reduction in classroom…

  15. Effect of a 12-hour/day shift on performance

    International Nuclear Information System (INIS)

    Lewis, P.M.; Swaim, D.J.

    1988-06-01

    The operating crews at the Fast Flux Facility near Richland, Washington, changed their rotating shift schedule from an 8- to 12- hour/day work schedule. The primary reason for the change was to reduce the attrition of operators by increasing their job satisfaction. Eighty-four percent of the operators favored the change. Plant performance and safety were not adversely affected. A statistical analysis of 53 operator-related, off-normal events in 28 months concluded that there was no significant difference in either the number or the severity of off-normal events on the 12-hour shift. A statistical analysis of 200,000 log entries concluded that the error rate in completing logs actually declined by 25 percent on the 12-hour shift. Alertness, which was measured using computerized tests of mathematics and logical reasoning, reach a nadir on the first night shift for the 8- and 12-hour schedules alike, which indicates that the primary cause of fatigue was sleep disruption, not cumulative hours of work. All supervisors and 52 percent of the operators believe their crews work more effectively on the 12-hour shift; only 12 percent of the operators believe that their crews work less effectively. The evaluation indicated that the 12-hour shift scheduled is a reasonable alternative to an 8-hour schedule at this facility. 2 refs

  16. 17 CFR 12.3 - Business address; hours.

    Science.gov (United States)

    2010-04-01

    ... REPARATIONS General Information and Preliminary Consideration of Pleadings § 12.3 Business address; hours. The... 17 Commodity and Securities Exchanges 1 2010-04-01 2010-04-01 false Business address; hours. 12.3..., DC 20581. It is open each day, except Saturdays, Sundays, and legal public holidays, from 8:15 a.m...

  17. 39 CFR 959.3 - Office, business hours.

    Science.gov (United States)

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Office, business hours. 959.3 Section 959.3 Postal Service UNITED STATES POSTAL SERVICE PROCEDURES RULES OF PRACTICE IN PROCEEDINGS RELATIVE TO THE PRIVATE EXPRESS STATUTES § 959.3 Office, business hours. The offices of the officials mentioned in these rules are...

  18. 39 CFR 952.4 - Office business hours.

    Science.gov (United States)

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Office business hours. 952.4 Section 952.4 Postal Service UNITED STATES POSTAL SERVICE PROCEDURES RULES OF PRACTICE IN PROCEEDINGS RELATIVE TO FALSE REPRESENTATION AND LOTTERY ORDERS § 952.4 Office business hours. The offices of the officials mentioned in these...

  19. 39 CFR 954.4 - Office business hours.

    Science.gov (United States)

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Office business hours. 954.4 Section 954.4 Postal Service UNITED STATES POSTAL SERVICE PROCEDURES RULES OF PRACTICE IN PROCEEDINGS RELATIVE TO THE DENIAL, SUSPENSION, OR REVOCATION OF PERIODICALS MAIL PRIVILEGES § 954.4 Office business hours. The offices of the...

  20. The role of four-hour blocks in promoting active learning strategies: the impressions of students and teachers

    OpenAIRE

    Nunes de Oliveira, J. M.

    2012-01-01

    The technological degrees offered at the Polytechnic School of Águeda – University of Aveiro have been organized, since 2001, around a project-based learning environment [1]. One of the features of the curriculum implementation is that courses’ contact hours are not divided in several types of classes, as in traditional learning environments. Following an idea adapted from the Aalborg model [2], all courses are taught in four-hour blocks that can be organized differently according to the cour...

  1. Factors influencing accruement of contact hours for nurses.

    Science.gov (United States)

    Kubsch, Sylvia; Henniges, Amy; Lorenzoni, Nancy; Eckardt, Sally; Oleniczak, Sandra

    2003-01-01

    A decline in attendance at continuing education (CE) in nursing activities was observed in a Midwest state where CE attendance is not required. The purpose of this research study was to identify the effect of attitude, extrinsic and intrinsic reinforcement, and deterrents on contact hour accrual. A convenience sample of 282 registered nurses was surveyed using a researcher-constructed instrument determined to be valid and reliable. Registered nurses earning 0 to 15 contact hours annually reported accruing fewer contact hours in 1999 than in an average year. Registered nurses who earned 16 to 45+ contact hours annually reported earning more contact hours in 1999 than in an average year. Intrinsic reinforcement was found to be a significant motivator (r [257] = .242; p Operant Conditioning Theory has use in explaining registered nurse attendance at CE activities. CE planners should consider placing more emphasis on intrinsic rather than extrinsic reinforcement to encourage staff to attend CE activities.

  2. Working Hours, Promotion and the Gender Gap in the Workplace

    DEFF Research Database (Denmark)

    Kato, Takao; Owan, Hideo; Ogawa, Hiromasa

    hours: and (ii) the worker's OJT ability (the worker's ability to accumulate valuable human capital on the job through learning by doing). The worker's cost of working long hours is known only to the worker, while the worker's OJT ability is accurately assessed only by the firm observing him......This paper presents a novel model of promotion within the firm which sheds new light on the interplay between working hours and the odds of subsequent promotion. The model's key feature is the coexistence of two different sources of asymmetric information: (i) the worker's cost of long working....../her on the job. Long working hours signal the worker's commitment to the firm, which determines the surplus produced when the worker is promoted. Thus, the firm provides the worker with managerial training only after observing the employee's hours worked, a signal of his/her commitment to the firm or lack...

  3. Hour-glass ceilings: Work-hour thresholds, gendered health inequities.

    Science.gov (United States)

    Dinh, Huong; Strazdins, Lyndall; Welsh, Jennifer

    2017-03-01

    Long workhours erode health, which the setting of maximum weekly hours aims to avert. This 48-h limit, and the evidence base to support it, has evolved from a workforce that was largely male, whose time in the labour force was enabled by women's domestic work and care giving. The gender composition of the workforce has now changed, and many women (as well as some men) combine care-giving with paid work, a change viewed as fundamental for gender equality. However, it raises questions on the suitability of the work time limit and the extent it is protective of health. We estimate workhour-mental health thresholds, testing if they vary for men and women due to gendered workloads and constraints on and off the job. Using six waves of data from a nationally representative sample of Australian adults (24-65 years), surveyed in the Household Income Labour Dynamics of Australia Survey (N = 3828 men; 4062 women), our study uses a longitudinal, simultaneous equation approach to address endogeneity. Averaging over the sample, we find an overall threshold of 39 h per week beyond which mental health declines. Separate curves then estimate thresholds for men and women, by high or low care and domestic time constraints, using stratified and pooled samples. We find gendered workhour-health limits (43.5 for men, 38 for women) which widen further once differences in resources on and off the job are considered. Only when time is 'unencumbered' and similar time constraints and contexts are assumed, do gender gaps narrow and thresholds approximate the 48-h limit. Our study reveals limits to contemporary workhour regulation which may be systematically disadvantaging women's health. Copyright © 2017 Elsevier Ltd. All rights reserved.

  4. 34 CFR 668.9 - Relationship between clock hours and semester, trimester, or quarter hours in calculating Title...

    Science.gov (United States)

    2010-07-01

    ... 34 Education 3 2010-07-01 2010-07-01 false Relationship between clock hours and semester, trimester, or quarter hours in calculating Title IV, HEA program assistance. 668.9 Section 668.9 Education..., DEPARTMENT OF EDUCATION STUDENT ASSISTANCE GENERAL PROVISIONS General § 668.9 Relationship between clock...

  5. [Relationships between walking hours, sleeping hours, meaningfulness of life (ikigai) and mortality in the elderly: prospective cohort study].

    Science.gov (United States)

    Seki, N

    2001-07-01

    The purpose of this study was to determine lifestyle factors in the elderly that affected longevity, using a population-based prospective study. The participants were 440 men and 625 women aged 60 to 74 living in a rural Japanese community. The baseline data such as age, sex, present illness, walking hours per day, sleeping hours per day, alcohol consumption, a history of smoking, and "ikigai" (meaningfulness of life) were collected in July 1990. During 90 months of follow-up from July 1990 to December 31 1997, there were 123 deaths. By Cox's multivariate hazard model adjusted age, sex, and medical histories, walking > or = 1 hour/day (HR = 0.63, 95% CI 0.44-0.91) and an "ikigai" (HR = 0.66, 95% CI 0.44-0.99) lowered the risk for all-cause mortality independently. In regard to hours of sleep, the cumulative survival curve showed that 7 hours/day was the border and sleeping > or = 7 hours/day lowered the risk (HR = 0.49 95% CI 0.33-0.74). Based on the findings in this study, walking > or = 1 hour/day, sleeping > or = 7 hours/day, and "ikigai" are important factors for longevity in the elderly.

  6. [A systematic review of working hours and mental health burden].

    Science.gov (United States)

    Fujino, Yoshihisa; Horie, Seichi; Hoshuyama, Tsutomu; Tsutsui, Takao; Tanaka, Yayoi

    2006-07-01

    There is growing concern over the possible increase in mental health problems among Japanese workers. This trend is generally regarded as a reflection of Japan's prolonged economic depression and changes in working environment. In fact, claims for compensation for industrial accidents related to mental health diseases have been rapidly increasing in recent years. Working hours, personal-relationships, support from supervisors/co-workers, job demand, job control, and payment are known to affect workers mental health. In 2004, the Government announced a guideline to combat overwork and mental health problems at work places. This guideline articulates that long overtime working is a major indicator, and workers who work over 100 h overtime in a month should be encouraged to see an occupational physician. This guideline takes into account the practicalities of occupational health at work places and the empiric knowledge that long working hours might associate with workers mental health status. It may be reasonable to assume that long working hours affect workers health status both psychologically and physiologically, interacting with a variety of occupational factors, particularly job stress. However, the association between working hours and workers mental health status has not been fully clarified. The present article aimed to provide a systematic review of the association between working hours and mental health problems. The authors conducted a systematic review of the published literature on the association between working hours and mental health problems using PubMed. Of 131 abstracts and citations reviewed, 17 studies met the predefined criteria. Ten of these are longitudinal studies, and the others are cross-sectional studies. Seven of the 17 studies report statistically significant associations between working hours and mental health problems, while the others report no association. In addition, comparison among these studies is difficult because a variety of

  7. 12-hour-shift plant schedule improves operator productivity

    International Nuclear Information System (INIS)

    Gould, S.

    1989-01-01

    Twelve-hour scheduling has been a mainstay of the petrochemical industry, is common in the papermill industry, and is relatively new to the nuclear utility industry. A review of industry experiences, research, and a federal Nuclear Regulatory Commission (NRC) study of the 12-hour shift (NUREG/CR-4248) demonstrate that the advantages outweigh the disadvantages. The primary advantages are greater job satisfaction, fewer errors, and the better communications inherent in two shift turnovers versus three. Several companies that implemented the 12-hour shift found an increase in employee morale, no adverse effect on worker health, and no decline in safety. They experienced greater productivity, fewer operator errors, and better communication

  8. Balancing Authority Cooperation Concepts - Intra-Hour Scheduling

    Energy Technology Data Exchange (ETDEWEB)

    Hunsaker, Matthew; Samaan, Nader; Milligan, Michael; Guo, Tao; Liu, Guangjuan; Toolson, Jacob

    2013-03-29

    The overall objective of this study was to understand, on an Interconnection-wide basis, the effects intra-hour scheduling compared to hourly scheduling. Moreover, the study sought to understand how the benefits of intra-hour scheduling would change by altering the input assumptions in different scenarios. This report describes results of three separate scenarios with differing key assumptions and comparing the production costs between hourly scheduling and 10-minute scheduling performance. The different scenarios were chosen to provide insight into how the estimated benefits might change by altering input assumptions. Several key assumptions were different in the three scenarios, however most assumptions were similar and/or unchanged among the scenarios.

  9. U.S. Hourly Climate Normals (1981-2010)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. Hourly Climate Normals for 1981 to 2010 are 30-year averages of meteorological parameters for thousands of U.S. stations located across the 50 states, as...

  10. Surface Airways Observations (SAO) Hourly Data 1928-1948 (CDMP)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The dataset consists of hourly U.S. surface airways observations (SAO). These observations extend as far back as 1928, from the time when commercial aviation began...

  11. NOS CO-OPS Water Level Data, Verified, Hourly

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset has verified (quality-controlled), hourly, water level (tide) data from NOAA NOS Center for Operational Oceanographic Products and Services (CO-OPS)....

  12. Enhanced Hourly Wind Station Data for the Contiguous United States

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — U.S. Enhanced Hourly Wind Station Data is digital data set DSI-6421, archived at the National Centers for Environmental Information (NCEI; formerly National Climatic...

  13. Off-Hours Admission and Acute Stroke Care Quality

    DEFF Research Database (Denmark)

    Kristiansen, Nina Sahlertz; Mainz, Jan; Nørgård, Bente Mertz

    2014-01-01

    chance of compliance with 8 out of 10 performance measures; however, these differences diminished over time. Unadjusted odds ratio for 30 days case-fatality, for patients admitted off-hours compared with patients admitted on-hours, was 1.15 (95% confidence interval, 1.09-1.21). Adjusting for patient...... characteristics (in particular, stroke severity) decreased the odds ratio to 1.03 (95% confidence interval, 0.97-1.10). Additional adjustment for hospital characteristics and compliance with performance measures had no effect on the odds ratio. Conclusion-Patients admitted off-hours received a poorer quality......Background and Purpose-Studies have reported higher risks of death and other adverse outcomes in acute stroke patients admitted off-hours; however, little is known about the underlying mechanisms. According to time of admission, our aim was to examine compliance with performance measures for acute...

  14. [Medical justification of the eight-hour shift work].

    Science.gov (United States)

    Haro-García, Luis; Sánchez-Román, Raúl; Juárez-Pérez, Cuauhtémoc Arturo; Larios-Díaz, Enrique

    2007-01-01

    The 8-hour shift work is one of the main achievements of the organized workers. International solidarity with United States miners, who were massacred in Chicago in 1886, and the aftermath of World War I promoted the establishment of 8-hour shift work in many countries. In Mexico, the 1917 Social Rights Declaration adhered to this position under the idea that the excessive workload above the 8-hour limit had negative effects on the health of workers; nevertheless, this statement seems to be sustained only by testimonies, anecdotal opinions and/or by the logic and common sense that then prevailed. For this reason, a literature review was carried out in search for the evidence supporting this apparently immovable length of the shift work. The globalization of the economy and the tendency towards flexibility and deregulation of current contractual relationships, are the new challenges that the 8-hour shift work is facing.

  15. Characteristics and outcomes for women physicians who work reduced hours.

    Science.gov (United States)

    Carr, Phyllis L; Gareis, Karen C; Barnett, Rosalind C

    2003-05-01

    To understand the characteristics of women physicians who work reduced hours in dual-earner couples and how such work schedules affect the quality of the marital role, parental role, and job role, as well as indicators of psychological distress, burnout, career satisfaction, and life satisfaction. Survey of a random sample of female physicians between 25 and 50 years of age, working within 25 miles of Boston, whose names were obtained from the Registry of Board Certification in Medicine in Massachusetts. Interviewers conducted a 60-minute face-to-face close-ended interview after a 20-minute mailed questionnaire had been completed. Fifty-one full-time physicians and 47 reduced-hours physicians completed the study, for a completion rate of 49.5%. There was no difference in age, number of years as a physician, mean household income, number of children, or presence of an infant in the home between reduced-hours and full-time physicians. Reduced-hours physicians, however, were more likely to be in a generalist specialty (40% vs. 12%, p = 0.001) and to spend a greater portion of their time in patient care (64.5% vs. 50.1%, p = 0.003) and less time in research (4.9% vs. 18.0%, p = 0.002) than full-time physicians. In addition, there was no difference between the two groups in the perception of work interfering with family life (1.8 vs. 1.7, p = 0.17; scale 1-7 with 7 high) or family life interfering with work (1.4 vs. 1.5, p = 0.62). Physicians who worked their preferred number of hours (25% of full-time and 57% of reduced-hours physicians), regardless of full-time (self-reported hours 35-90 hours per week) or reduced-hours (20-60 hours per week) status, reported better job role quality (r = 0.35, p = 0.001), schedule fit (r = 0.41, p Women physicians who work their preferred number of hours achieve the best balance of work and family outcomes.

  16. Effectiveness and Safety of 2-Hourly 20 MCG Oral Misoprostol ...

    African Journals Online (AJOL)

    Results: The overall induction success rates in the misoprostol arm was 81% versus 83% in the oxytocin arm (P=0.447). The mean induction to vaginal delivery interval in the misoprostol arm was 8.4 hours as compared to 9.45 hours in the oxytocin arm (P=0.116). The induction to active labour interval was similar in the two ...

  17. “Friday off”: Reducing Working Hours in Europe

    Directory of Open Access Journals (Sweden)

    Jack Rossiter

    2013-04-01

    Full Text Available This article explores the pros and cons for reducing working hours in Europe. To arrive to an informed judgment we review critically the theoretical and empirical literature, mostly from economics, concerning the relation between working hours on the one hand, and productivity, employment, quality of life, and the environment, on the other. We adopt a binary economics distinction between capital and labor productiveness, and are concerned with how working hours may be reduced without harming the earning capacity of workers. There are reasons to believe that reducing working hours may absorb some unemployment, especially in the short-run, even if less than what is advocated by proponents of the proposal. Further, there may well be strong benefits for the quality of peoples’ lives. Environmental benefits are likely but depend crucially on complementary policies or social conditions that will ensure that the time liberated will not be directed to resource-intensive or environmentally harmful consumption. It is questionable whether reduced working hours are sustainable in the long-term given resource limits and climate change. We conclude that while the results of reducing working hours are uncertain, this may be a risk worth taking, especially as an interim measure that may relieve unemployment while other necessary structural changes are instituted.

  18. Flexible working hours and well-being in Finland.

    Science.gov (United States)

    Kandolin, I; Härmä, M; Toivanen, M

    2001-12-01

    Flexibility of working hours became more prevalent in the 1990s in Finland. According to a representative survey on Finnish wage and salary earners (n = 1790) at the beginning of 2000, a great majority of male (76%) and female (65%) employees regularly worked overtime and/or had irregular working hours every month. These employees were flexible in meeting the needs of their companies/employers. Individual flexibility of working hours was far less common, only one third of male and female employees were able to regulate their working hours. A better balance between company-controlled and individual flexibility would, however, improve the well-being of employees. Employees working overtime without being allowed to regulate their working hours felt more symptoms of distress and had more conflicts in combining workplace and family roles than those who could individually determine their working hours flexibly. An investment in individually determined flexibility, for example by means of participatory planning, would improve the well-being of employees, and thus also improve the productivity of the organization.

  19. ACGME proposes dropping the 16 hour resident shift limit

    Directory of Open Access Journals (Sweden)

    Robbins RA

    2016-11-01

    Full Text Available No abstract available. Article truncated after 150 words. The Accreditation Council for Graduate Medical Education (ACGME is proposing that first-year residents would no longer be limited to 16-hour shifts during the 2017-2018 academic year under a controversial proposal released today (1. Instead, individual residency programs could assign first-year trainees to shifts as long as 28 hours, the current limit for all other residents. The 28-hour maximum includes 4 transitional hours that's designed in part to help residents improve continuity of care. The plan to revise training requirements does not change other rules designed to protect all residents from overwork. including the maximum80 hours per week. The ACGME capped the shifts of first-year residents at 16 hours in 2011 as a part of an ongoing effort to make trainee schedules more humane and avoid clinical errors caused by sleep deprivation. ACGME CEO Thomas Nasca, MD, told Medscape Medical News that the problem arises largely from first-year residents not being ...

  20. Modeling Hourly Resident Productivity in the Emergency Department.

    Science.gov (United States)

    Joseph, Joshua W; Henning, Daniel J; Strouse, Connie S; Chiu, David T; Nathanson, Larry A; Sanchez, Leon D

    2017-08-01

    Resident productivity, defined as new patients per hour, carries important implications for emergency department operations. In high-volume academic centers, essential staffing decisions can be made on the assumption that residents see patients at a static rate. However, it is unclear whether this model mirrors reality; previous studies have not rigorously examined whether productivity changes over time. We examine residents' productivity across shifts to determine whether it remained consistent. This was a retrospective cohort study conducted in an urban academic hospital with a 3-year emergency medicine training program in which residents acquire patients ad libitum throughout their shift. Time stamps of all patient encounters were automatically logged. A linear mixed model was constructed to predict productivity per shift hour. A total of 14,364 8- and 9-hour shifts were worked by 75 residents between July 1, 2010, and June 20, 2015. This comprised 6,127 (42.7%) postgraduate year (PGY) 1 shifts, 7,236 (50.4%) PGY-2 shifts, and 998 (6.9%) PGY-3 nonsupervisory shifts (Table 1). Overall, residents treated a mean of 10.1 patients per shift (SD 3.2), with most patients at Emergency Severity Index level 3 or more acute (93.8%). In the initial hour, residents treated a mean of 2.14 patients (SD 1.2), and every subsequent hour was associated with a significant decrease, with the largest in the second, third, and final hours. Emergency medicine resident productivity during a single shift follows a reliable pattern that decreases significantly hourly, a pattern preserved across PGY years and types of shifts. This suggests that resident productivity is a dynamic process, which should be considered in staffing decisions and studied further. Copyright © 2016 American College of Emergency Physicians. Published by Elsevier Inc. All rights reserved.

  1. Hour-by-hour physical activity patterns of adults aged 45-65 years: a cross-sectional study.

    Science.gov (United States)

    Jansen, F M; van Kollenburg, G H; Kamphuis, C B M; Pierik, F H; Ettema, D F

    2017-11-10

    Limited information exists on hour-by-hour physical activity (PA) patterns among adults aged 45-65 years. Therefore, this study aimed to distinguish typical hour-by-hour PA patterns, and examined which individuals typically adopt certain PA patterns. Accelerometers measured light and moderate-vigorous PA. GIS-data provided proportions of land use within an 800 and 1600 m buffer around participant's homes. Latent class analyses were performed to distinguish PA patterns and groups of individuals with similar PA patterns. Four PA patterns were identified: a morning light PA pattern, a mid-day moderate-vigorous PA pattern, an overall inactive pattern and an overall active pattern. Groups of individuals with similar PA patterns differed in ethnicity, dog ownership, and the proportion of roads, sports terrain, larger green and blue space within their residential areas. Four typical hour-by-hour PA patterns, and three groups of individuals with similar patterns were distinguished. It is this combination that can substantially contribute to the development of more tailored policies and interventions. PA patterns were only to a limited extent associated with personal and residential characteristics, suggesting that other factors such as work time regimes, family life and leisure may also have considerable impact on the distribution of PA throughout the day. © The Author [year of publication]. Published by Oxford University Press on behalf of Faculty of Public Health.

  2. Modeling Aggregate Hourly Energy Consumption in a Regional Building Stock

    Directory of Open Access Journals (Sweden)

    Anna Kipping

    2017-12-01

    Full Text Available Sound estimates of future heat and electricity demand with high temporal and spatial resolution are needed for energy system planning, grid design, and evaluating demand-side management options and polices on regional and national levels. In this study, smart meter data on electricity consumption in buildings are combined with cross-sectional building information to model hourly electricity consumption within the household and service sectors on a regional basis in Norway. The same modeling approach is applied to model aggregate hourly district heat consumption in three different consumer groups located in Oslo. A comparison of modeled and metered hourly energy consumption shows that hourly variations and aggregate consumption per county and year are reproduced well by the models. However, for some smaller regions, modeled annual electricity consumption is over- or underestimated by more than 20%. Our results indicate that the presented method is useful for modeling the current and future hourly energy consumption of a regional building stock, but that larger and more detailed training datasets are required to improve the models, and more detailed building stock statistics on regional level are needed to generate useful estimates on aggregate regional energy consumption.

  3. Duty hours and incidents in flight among commercial airline pilots.

    Science.gov (United States)

    O'Hagan, Anna Donnla; Issartel, Johann; Fletcher, Richard; Warrington, Giles

    2016-01-01

    Working long duty hours has often been associated with increased risk of incidents and accidents in transport industries. Despite this, information regarding the intermediate relationship between duty hours and incident risk is limited. This study aimed to test a work hours/incident model to identify the interplay of factors contributing to incidents within the aviation industry. Nine hundred and fifty-four European-registered commercial airline pilots completed a 30-item survey investigating self-report attitudes and experiences of fatigue. Path analysis was used to test the proposed model. The fit indices indicated this to be a good fit model (χ(2) = 11.066, df = 5, p = 0.05; Comparative Fit Index = 0.991; Normed Fit Index = 0.984; Tucker-Lewis Index = 0.962; Root Mean Square of Approximation = 0.036). Highly significant relationships were identified between duty hours and sleep disturbance (r = 0.18, p < 0.001), sleep disturbance and fatigue in the cockpit (r = 0.40, p < 0.001), and fatigue in the cockpit and microsleeps in the cockpit (r = 0.43, p < 0.001). A critical pathway from duty hours through to self-reported incidents in flight was identified. Further investigation employing both objective and subjective measures of sleep and fatigue is needed.

  4. Epidemiology of hyperbilirubinemia in the first 24 hours after birth

    Directory of Open Access Journals (Sweden)

    Zarrinkoub F

    2007-09-01

    Full Text Available   Background: Jaundice is one of the most frequent problems observed in newborns. Our purpose was to investigate the incidence and the risk factors on jaundice noted in the first 24 hours after birth.Methods: All newborns observed to have jaundice within the first 24 hours after birth were enrolled prospectively in this study. Laboratory evaluations included blood group typing of mother and newborn, hemoglobin and hematocrit, complete blood count, peripheral blood smear, reticulocyte count, G6PD activity, maternal indirect and neonatal direct Coombs test, and serum total, conjugated, and unconjugated bilirubin. In all cases, gender, birth weight, Apgar scores, gestational age, mode of delivery, birth trauma, cephalhematoma, maternal age, parity, or any siblings with neonatal jaundice were recorded. Data were analyzed using one-way ANOVA, Student's t-, and chi-square tests.Results: Of a total of 2096 newborns delivered in one year, 122 (5.8% developed jaundice within the first 24 hours after birth. Risk factors for hyperbilirubinemia were ABO incompatibility, prematurity, infection, G6PD deficiency, cephalhematoma, asphyxia, and Rh disease. There were no statistically significant relationships between jaundice and maternal age, parity, mode of delivery, neonatal gender or previous siblings with jaundice (p>0.05.Conclusions: Jaundice observed in the initial 24 hours after birth was infrequent, but clinically significant. All newborns should be followed by repeated exams within the first 24 hours after birth and before discharge, especially if the maternal blood group is O.

  5. Maximizing utilization of sport halls during peak hours

    DEFF Research Database (Denmark)

    Iversen, Evald Bundgård; Forsberg, Peter

    the number of participants 7.5 persons higher pr. activity compared to club activities. This implies that clubs during peak hours could include more participants. Another possibility to increase utilization is if the management of sport facilities forced sport clubs and other organisers to adapt......BACKGROUNDDuring peak hours (4.30pm-8pm) demand for timeslots in sport halls in Denmark are high and there are few timeslots available. Further, focus on how public resources are spent most efficient is increasing (Iversen, 2013). This makes it interesting to analyse how utilization could...... be increased during peak hours. DATA AND METHODOLOGYData is collected by observation of activities during two weeks on for example whether halls are used or not; the amount of playing field used; and number of participants (Iversen, 2012). Data on 1.331 activities in 36 sport halls across 4 municipalities have...

  6. Administrative Circular No. 23 (Rev. 4) - Special working hours

    CERN Multimedia

    Department Head Office - HR Department

    2016-01-01

    Administrative Circular No. 23 (Rev. 4) entitled "Special working hours", approved by the Director-General following discussion in the Standing Concertation Committee meeting on 22 March 2016, will be available on 1st September 2016 via the following link: https://cds.cern.ch/record/2208539.   This revised circular cancels and replaces Administrative Circular No. 23 (Rev. 3) also entitled "Special working hours" of January 2013. This document contains modifications to reflect the new career structure and ensuring the provision consistent with practice that compensation or remuneration of special working hours performed remotely is possible only in case of emergency.   This circular will enter into force on 1st September 2016.

  7. Averaging and sampling for magnetic-observatory hourly data

    Directory of Open Access Journals (Sweden)

    J. J. Love

    2010-11-01

    Full Text Available A time and frequency-domain analysis is made of the effects of averaging and sampling methods used for constructing magnetic-observatory hourly data values. Using 1-min data as a proxy for continuous, geomagnetic variation, we construct synthetic hourly values of two standard types: instantaneous "spot" measurements and simple 1-h "boxcar" averages. We compare these average-sample types with others: 2-h average, Gaussian, and "brick-wall" low-frequency-pass. Hourly spot measurements provide a statistically unbiased representation of the amplitude range of geomagnetic-field variation, but as a representation of continuous field variation over time, they are significantly affected by aliasing, especially at high latitudes. The 1-h, 2-h, and Gaussian average-samples are affected by a combination of amplitude distortion and aliasing. Brick-wall values are not affected by either amplitude distortion or aliasing, but constructing them is, in an operational setting, relatively more difficult than it is for other average-sample types. It is noteworthy that 1-h average-samples, the present standard for observatory hourly data, have properties similar to Gaussian average-samples that have been optimized for a minimum residual sum of amplitude distortion and aliasing. For 1-h average-samples from medium and low-latitude observatories, the average of the combination of amplitude distortion and aliasing is less than the 5.0 nT accuracy standard established by Intermagnet for modern 1-min data. For medium and low-latitude observatories, average differences between monthly means constructed from 1-min data and monthly means constructed from any of the hourly average-sample types considered here are less than the 1.0 nT resolution of standard databases. We recommend that observatories and World Data Centers continue the standard practice of reporting simple 1-h-average hourly values.

  8. Strategies to accommodate resident work-hour restrictions: impact on surgical education.

    Science.gov (United States)

    Freiburg, Carter; James, Ted; Ashikaga, Takamura; Moalem, Jacob; Cherr, Greg

    2011-01-01

    The introduction of duty-hour restrictions has impacted surgical training. Several strategies were introduced by training programs in response to these restrictions. The purpose of this study was to assess the various strategies employed by residency programs to comply with work-hour restrictions with respect to the impact on the quality of surgical education. A national survey was developed and distributed to resident members of the Resident and Associate Society of the American College of Surgeons in all accredited residency programs across North America. Questions in the survey addressed 10 separate accommodation strategies used by training programs to adhere to resident work-hour restrictions. Resident respondents completed a 5-point Likert scale rating each strategy according to its impact on surgical education (detrimental, not very helpful, neutral, somewhat helpful, and very helpful). A total of 599 (9.7%) responses were received from 6186 members of the Resident Associate Society. The use of health information technology (IT), nurse practitioners, and physician assistants were most highly rated. Hiring clinical fellows, establishing nonteaching services, and shift-work scheduling were the three most poorly rated accommodations to work-hour restrictions with respect to resident education. Hospital IT and nonphysician care providers were rated by residents to optimize surgical education in the current work-hour limitation environment. We infer that strategies which lead to increased efficiency and redistribution of resident workload allow surgical trainees to spend more time on activities perceived to have higher educational value. Copyright © 2011 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.

  9. Effect of a Protected Sleep Period on Hours Slept During Extended Overnight In-hospital Duty Hours Among Medical Interns

    Science.gov (United States)

    Volpp, Kevin G.; Shea, Judy A.; Small, Dylan S.; Basner, Mathias; Zhu, Jingsan; Norton, Laurie; Ecker, Adrian; Novak, Cristina; Bellini, Lisa M.; Dine, C. Jessica; Mollicone, Daniel J.; Dinges, David F.

    2013-01-01

    Context A 2009 Institute of Medicine report recommended protected sleep periods for medicine trainees on extended overnight shifts, a position reinforced by new Accreditation Council for Graduate Medical Education requirements. Objective To evaluate the feasibility and consequences of protected sleep periods during extended duty. Design, Setting, and Participants Randomized controlled trial conducted at the Philadelphia VA Medical Center medical service and Oncology Unit of the Hospital of the University of Pennsylvania (2009–2010). Of the 106 interns and senior medical students who consented, 3 were not scheduled on any study rotations. Among the others, 44 worked at the VA center, 16 at the university hospital, and 43 at both. Intervention Twelve 4-week blocks were randomly assigned to either a standard intern schedule (extended duty overnight shifts of up to 30 hours; equivalent to 1200 overnight intern shifts at each site), or a protected sleep period (protected time from 12:30 AM to 5:30 AM with handover of work cell phone; equivalent to 1200 overnight intern shifts at each site). Participants were asked to wear wrist actigraphs and complete sleep diaries. Main Outcome Measures Primary outcome was hours slept during the protected period on extended duty overnight shifts. Secondary outcome measures included hours slept during a 24-hour period (noon to noon) by day of call cycle and Karolinska sleepiness scale. Results For 98.3% of on-call nights, cell phones were signed out as designed. At the VA center, participants with protected sleep had a mean 2.86 hours (95% CI, 2.57–3.10 hours) of sleep vs 1.98 hours (95% CI, 1.68–2.28 hours) among those who did not have protected hours of sleep (P < .001). At the university hospital, participants with protected sleep had a mean 3.04 hours (95% CI, 2.77–3.45 hours) of sleep vs 2.04 hours (95% CI, 1.79–2.24) among those who did not have protected sleep (P <.001). Participants with protected sleep were

  10. 24-Hour Holter Monitoring at the Lagos State University Teaching ...

    African Journals Online (AJOL)

    However, only a minority of such patients have documented and confirmed clinically significant tachyarrhythmias in this study. A subsequent larger prospective study would shed more light on this subject. Key Words: Electrocardiogram (ECG), 24-hour Holter, Heart Rate variability. Paroxysmal tachyarrhythmias.

  11. Working Hour and its Impact on Backache from Gender Perspective

    Directory of Open Access Journals (Sweden)

    Amita Pradhan

    2011-04-01

    Full Text Available This paper aims to analyze the association between work burden and backache among women and men. The study design is descriptive cross sectional. Thirty two households are selected. From each of the households sample size of 64 in terms of a pair of either married couple or the unmarried sister and brother are selected. Respondent's age is between 15 to 49 years. Semi structured questionnaire is used to collect data. This study shows significant differences in working hour between male and female. The working hour is significantly higher among the persons with backache. Gender inequality is a stark reality. The gender division of labour may add more work to women resulting into longer working hour for women. This may reflect in some health hazards among women. Hence, more focused attention is needed to understand the non reproductive health problems of women. Keywords: working hour; backache; women empowerment; health problem; health seeking behaviour DOI: 10.3126/dsaj.v4i0.4523 Dhaulagiri Journal of Sociology and Anthropology Vol.4 2010 pp.235-246

  12. The accuracy of after-hour registrar computed tomography (CT ...

    African Journals Online (AJOL)

    2014-05-16

    May 16, 2014 ... tomography (CT) reporting in a South African tertiary teaching hospital. Authors: ... The purpose of this study was to determine the accuracy of after-hour registrar CT reporting, to identify possible factors that may .... The authors declare that they have no financial or personal relationship(s) that may have ...

  13. Storage beyond Three Hours at Ambient Temperature Alters the ...

    African Journals Online (AJOL)

    The effect of storage on stability of human breast milk was investigated in 30 lactating mothers. Samples stored for 3, 6 and 24 hours at ambient temperature of 302K (29°) were analysed for protein, lactose, pH, and microbial content. There were significant (p < 0.01) decreases in protein, lactose and pH upon storage for 6 ...

  14. Japanese Non Resident Language Refresher Course; 210 Hour Course.

    Science.gov (United States)

    Defense Language Inst., Washington, DC.

    This military intelligence unit refresher course in Japanese is designed for 210 hours of audiolingual instruction. The materials, prepared by the Defense Language Institute, are intended for students with considerable intensive training in spoken and written Japanese who are preparing for a military language assignment. [Not available in hard…

  15. correlation between sunshine hours and climatic parameters at four

    African Journals Online (AJOL)

    Mgina

    problems in the field of energy management and operation have emerged on the energy market. One of the most important factors in solar energy production is related to the predictability of sunshine hours (Firoz and. Intikhab 2004, John and Tony 2000). This has resulted in non-optimal use of solar radiation. Therefore, the ...

  16. Globalization and working time: working hours and flexibility in Germany

    NARCIS (Netherlands)

    Burgoon, B.; Raess, D.

    2009-01-01

    This article challenges popular wisdom that economic globalization uniformly increases working time in industrialized countries. International investment and trade, they argue, have uneven effects for workplace bargaining over standard hours and over work-time flexibility, such as use of temporary

  17. 48 CFR 536.570-5 - Working hours.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Working hours. 536.570-5 Section 536.570-5 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL CATEGORIES OF CONTRACTING CONSTRUCTION AND ARCHITECT-ENGINEER CONTRACTS Contract Clauses 536.570-5 Working...

  18. 8 Hour Ozone Design Value for 1998-2000

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Ozone design value is based on the average of the annual 4th highest daily 8-hour maximum over a 3-year period (1998-2000) in this case. This is a human health...

  19. The star-bright hour : [poems] / Betti Alver

    Index Scriptorium Estoniae

    Alver, Betti, 1906-1989

    2003-01-01

    Autori lühitutvustus lk. 231. Sisu: The star-bright hour ; The debt ; Not a dream ; Fog-bound ; Corals in an Ancient river ; Frou-frou 1-3. Orig.: Tähetund ; Vilepuhuja ; Võlg ; "Mitte viirastus, meelepett..." ; Udus ; Korallid Emajões ; Froufrou 1-3

  20. The star-bright hour : [luuletused] / Betti Alver

    Index Scriptorium Estoniae

    Alver, Betti, 1906-1989

    2006-01-01

    Sisu: The star-bright hour ; Not a dream ; The Piper ; Corals in an ancent river. Luuletused pärinevad kogumikust "Tuulelaeval valgusest on aerud = Windship with Oars of Light. (Tallinn : Huma, 2001). Orig.: Tähetund ; Mitte viirastus, meelepett ; Vilepuhuja ; Korallid Emajões

  1. Work Hours, Social Value of Leisure and Globalisation

    DEFF Research Database (Denmark)

    Hansen, Jørgen Drud; Molana, Hassan; Montagna, Catia

    2010-01-01

    We examine how openness interacts with the coordination of consumption-leisure decisions in determining the equilibrium working hours and wage rate when there are leisure externalities (e.g., due to social interactions). The latter are modelled by allowing a worker's marginal utility of leisure t...

  2. Transferring PSM craft skills in a 2 hour session

    NARCIS (Netherlands)

    Zijderveld, E.J.A. van; Morill, N.; Shaw, D.; Belton, V.; Harvey, P.; Rouwette, E.

    2007-01-01

    Many of those involved in the Problem Structuring Methods (PSM) community have commented on the struggle that novices face in building the craft skills associated with conducting a PSM intervention. As part of this year's Operational Research Society Conference, we have three 2-hour practical

  3. Accuracy of 24- and 48-Hour Forecasts of Haines' Index

    Science.gov (United States)

    Brian E. Potter; Jonathan E. Martin

    2001-01-01

    The University of Wisconsin-Madison produces Web-accessible, 24- and 48-hour forecasts of the Haines Index (a tool used to measure the atmospheric potential for large wildfire development) for most of North America using its nonhydrostatic modeling system. The authors examined the accuracy of these forecasts using data from 1999 and 2000. Measures used include root-...

  4. DASH-Style Diet and 24-Hour Urine Composition

    OpenAIRE

    Taylor, Eric N.; Stampfer, Meir J.; Mount, David B.; Curhan, Gary C.

    2010-01-01

    Background and objectives: We previously observed associations between a Dietary Approaches to Stop Hypertension (DASH)-style diet and large reductions in kidney stone risk. This study examined associations between a DASH-style diet and 24-hour excretions of urinary lithogenic factors.

  5. Utilization of Leisure Hours among Students of Ambrose Alli ...

    African Journals Online (AJOL)

    The purpose of this study is to find out the utilization of leisure hours among students of Ambrose Alli University, Ekpoma, Nigeria. The researchers attempted to find out whether the students of Ambrose Alli University, Ekpoma creates time for their leisure activities, the factors that affect the participation in leisure activities, the ...

  6. 29 CFR 778.101 - Maximum nonovertime hours.

    Science.gov (United States)

    2010-07-01

    ... which the pay requirements of section 6 (minimum wage and equal pay) but not those of section 7(a) are... POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS OVERTIME COMPENSATION The Overtime Pay... provides 40 hours as the maximum number that an employee subject to its provisions may work for an employer...

  7. Ocular torsion before and after 1 hour centrifugation

    NARCIS (Netherlands)

    Groen, E.; Graaf, B. de; Bles, W.; Bos, J.E.

    1996-01-01

    To assess a possible otolith contribution to effects observed following prolonged expo-sure to hyper gravity, we used video-oculography to measure ocular torsion during static and dynamic conditions of lateral body tilt (roll) before and after one hour of centrifugation with a Gx-load of 3G. Static

  8. Ampere hour method of sizing a stand alone photovoltaic system ...

    African Journals Online (AJOL)

    Stand-alone photovoltaic power systems are natural options for application in electrification of remote areas which are not served by the grid electricity supply system. An ampere-hour method of sizing a stand-alone PV system for application in any remote location has been presented. The design which is for both ac and dc ...

  9. 77 FR 64093 - Hours of Service of Drivers

    Science.gov (United States)

    2012-10-18

    ... public listening session to solicit information, concepts, ideas, and information on hours-of- service..., the Agency would like to know what factors, issues, and data it should consider as it determines..., please include a self- addressed, stamped envelope or postcard or print the acknowledgement page that...

  10. Estimation of global solar radiation from sunshine hours for Warri ...

    African Journals Online (AJOL)

    Multiple linear regression models were developed to estimate the monthly daily sunshine hours using four parameters during a period of eleven years (1997 to 2007) for Warri, Nigeria (Latitude of 5o 34' 21.0''); the parameters include, Relative Humidity, Maximum and Minimum Temperature, Rainfall and Wind Speed.

  11. Forecasting Day-Ahead Electricity Prices : Utilizing Hourly Prices

    NARCIS (Netherlands)

    E. Raviv (Eran); K.E. Bouwman (Kees); D.J.C. van Dijk (Dick)

    2013-01-01

    textabstractThe daily average price of electricity represents the price of electricity to be delivered over the full next day and serves as a key reference price in the electricity market. It is an aggregate that equals the average of hourly prices for delivery during each of the 24 individual

  12. The 150-Hour Requirement for CPA Licensure: One Institution's Response

    Science.gov (United States)

    Larkin, Joseph M.

    2014-01-01

    Virtually all states now require candidates for the Certified Public Accountant (CPA) examination and subsequent licensure to have completed 150 semester hours of college education. The rationale behind this requirement is to improve the preparation of students entering the profession and to increase their chances of successful completion of the…

  13. Results of the 1000 Hour Rotary Microfilter Endurance Test

    International Nuclear Information System (INIS)

    Herman, D.

    2010-01-01

    During operation, a primary concern is lifetime of the mechanical seal. Leakage from main shaft mechanical seal is expected to be first indication of wear on rotary filter but will not be the ultimate failure of the filter. Initial clearance inadequate to support thermal expansion resulted in initial scarring of journal. Tolerances adjusted and no journal issues were found during 1000 hour test. Disassembly and inspection of the rotary joint seals showed no unusual wear. No leakage observed during test. Total operation time over 1500 hours. Test summary successfully demonstrated: (1) Filtration of a 'challenging' SRS simulant up to 15 wt % insoluble solids in a 5.6 M salt simulant; (2) Sludge washing; (3) In-situ acid cleaning with dilute acid; (4) Over 1000 hours of operation on new journal material; and (5) Over 1500 hours of operation on all seals. The filter out lasted: 2 air compressors, 2 power outages (one planned), 2 chillers, 1 fire, 1 electrical breaker and 1 feed pump seal.

  14. Training for fitness: reconsidering the 80-hour work week.

    Science.gov (United States)

    Caldicott, Catherine V; Holsapple, James W

    2008-01-01

    The medical literature is replete with articles about the Accreditation Council for Graduate Medical Education's 2003 resident duty hour restrictions. Most of these papers describe creative and thoughtful responses to the new system. However, others express concern that the "80-hour work week" could hamper continuity of care and educational activities. Nevertheless, if fatigue impairs resident learning and medical care quality, then work hour restrictions seem worthwhile. We add our voices to the critics' for additional reasons. Data support that fatigue occurs even with reasonable work schedules, and residents do not reliably use time off from work to rest. Regulated work schedules can interfere with adequate rehearsal of the physical and mental stamina required in certain specialties, yet patients have a right to expect their physicians to be trained in the particular demands of those specialties. Similarly, residents have a right to a realistic understanding of authentic clinical practice. Further, while self-sacrifice need not be routine, trainees should feel that occasional self-sacrifice is appropriate and acceptable for a physician. We reject uniform, arbitrary duty hour limits for all specialties. Rather, we propose that a subspecialty-based system can foster the development of the endurance, skills, and reasoning that patients and colleagues expect.

  15. estimation of global solar radiation from sunshine hours for warri

    African Journals Online (AJOL)

    DJFLEX

    Multiple linear regression models were developed to estimate the monthly daily sunshine hours using four parameters during a period of eleven years (1997 to 2007) for Warri, Nigeria (Latitude of 5o. 34' 21.0''); the parameters include, Relative Humidity, Maximum and Minimum Temperature, Rainfall and Wind Speed.

  16. Work hours, social value of leisure and globalisation

    DEFF Research Database (Denmark)

    Hansen, Jørgen Drud; Molana, Hassan; Montagna, Catia

    2012-01-01

    to be increasing in the leisure time taken by other workers. Coordination takes the form of internalising the leisure externality and other relevant constraints (e.g., labour demand). The extent of openness is measured by the degree of capital mobility. We find that: coordination lowers equilibrium work hours...

  17. Work Hours, Social Value of Leisure and Globalisation

    DEFF Research Database (Denmark)

    Hansen, Jørgen Drud; Nielsen, Jørgen Ulff-Møller; Montagna, Catia

    to be increasing in the leisure time taken by other workers. Coordination takes the form of internalising the leisure externality and other relevant constraints (e.g., labour demand). The extent of openness is measured by the degree of capital mobility. We find that: coordination lowers equilibrium work hours...

  18. 76 FR 5324 - Hours of Service of Drivers

    Science.gov (United States)

    2011-01-31

    ... material to the FMCSA staff at the session for inclusion in the public docket, FMCSA- 2004-19608. The... driver goes beyond the 10th hour. 1a. For example, on days in which the driver both picks up and delivers...

  19. Controls on hourly variations in urban background air pollutant concentrations

    Science.gov (United States)

    Moreno, Teresa; Lavín, Javier; Querol, Xavier; Alastuey, Andrés; Viana, Mar; Gibbons, Wes

    Average 21st century concentrations of urban air pollutants linked to cardiorespiratory disease are not declining, and commonly exceed legal limits. Even below such limits, health effects are being observed and may be related to transient daytime peaks in pollutant concentrations. With this in mind, we analyse >52,000 hourly urban background readings of PM 10 and pollutant gases throughout 2007 at a European town with legal annual average concentrations of common pollutants, but with a documented air pollution-related cardiorespiratory health problem, and demonstrate the hourly variations in PM 10, SO 2, NO x, CO and O 3. Back-trajectory analysis was applied to track the arrival of exotic PM 10 intrusions, the main controls on air pollutants were identified, and the typical hourly pattern on ambient concentrations during 2007 was profiled. Emphasis was placed on "worst case" data (>90th percentile), when health effects are likely to be greatest. The data show marked daytime variations in pollutants result from rush-hour traffic-related pollution spikes, midday industrial SO 2 maxima, and afternoon O 3 peaks. African dust intrusions enhance PM 10 levels at whatever hour, whereas European PM incursions produce pronounced evening peaks due to their transport direction (across an industrial traffic corridor). Transient peak profiling moves us closer to the reality of personal outdoor exposure to inhalable pollutants in a given urban area. We argue that such an approach to monitoring data potentially offers more to air pollution health effect studies than using only 24 h or annual averages.

  20. One hour effects of salbutamol and formoterol on blood pressure, heart rate and oxygen saturation in asthmatics

    Directory of Open Access Journals (Sweden)

    Geraldo Andrade Capuchinho-Júnior

    2008-05-01

    Full Text Available Aim: To analyse systolic (SBP and diastolic blood pressure (DBP, partial oxygen saturation (SpO2 and heart rate (HR disorders for an hour after short and long acting ß2-agonists. Material and methods: Twenty-four severe persistent asthma Pulmonology outpatients at Hospital Universitario Gaffree e Guinle were selected. SBP, DBP, SpO2 and HR values were determined before and after 400 μg of salbutamol and 12 μg of formoterol, on different days, with a minimum interval of 24 hours. Results: All patients showed ventilatory obstruction, as seen by a reduced FEV1/FVC ratio. There was no statistical SBP/DBP/HR difference after bronchodilator agents, but SpO2 increased with salbutamol. Conclusion: A standard dose of salbutamol and formoterol does not cause haemodynamic disorder. Resumo: Objectivo: Analisar os possíveis efeitos do uso de β-2-agonistas, de curta e longa duração, nas pressões arteriais sistólica (PAS e diastólica (PAD, na saturação parcial de oxigénio (SpO2 e na frequência cardíaca (FC, durante o período de uma hora. Material e métodos: Vinte e quatro doentes com asma persistente grave, em tratamento no ambulatório de Pneumologia do Hospital Universitário Gaffrée e Guinle, foram seleccionados para um ensaio clínico sequencial e cruzado. Os valores da PAS, PAD, SpO2 e FC foram registados antes e após o uso de broncodilatadores, salbutamol 400 μg e formoterol 12 μg, em dias diferentes, com intervalo mínimo de 24 horas. Resultados: Todos os doentes apresentaram distúrbio ventilatório obstrutivo, identificado pela redução da relação entre o volume expiratório forçado no primeiro segundo (VEMS e a capacidade vital forçada (CVF. Após o uso de substância broncodilatadora, não houve variação significativa nas PAS e PAD, nem na FC; porém, a SpO2 aumentou com o uso de salbutamol. Conclusão: Não foram observadas

  1. Drug prescriptions in Danish out-of-hours primary care

    DEFF Research Database (Denmark)

    Christensen, Morten Bondo; Nørøxe, Karen Busk; Moth, Grete

    2016-01-01

    OBJECTIVE: General practitioners are the first point of contact in Danish out-of-hours (OOH) primary care. The large number of contacts implies that prescribing behaviour may have considerable impact on health-care expenditures and quality of care. The aim of this study was to examine the prevail......OBJECTIVE: General practitioners are the first point of contact in Danish out-of-hours (OOH) primary care. The large number of contacts implies that prescribing behaviour may have considerable impact on health-care expenditures and quality of care. The aim of this study was to examine...... data. MAIN OUTCOME MEASURES: Prescriptions were categorised according to Anatomical Therapeutic Chemical Classification (ATC) codes and stratified for patient age, gender and contact type (telephone consultation, clinic consultation or home visit). Prescription rates were calculated as number...

  2. Estimation of clear sky hourly global solar radiation in Iraq

    Energy Technology Data Exchange (ETDEWEB)

    Al-Jumaily, Kais J.; Al-Zuhairi, Munya F.; Mahdi, Zahraa S. [Department of Atmospheric Sciences, College of Science, Al-Mustansiriyah University, Baghdad (Iraq)

    2012-07-01

    The availability of hourly solar radiation data is very important for applications utilizing solar energy and for climate and environmental aspects. The aim of this work is to use a simple model for estimating hourly global solar radiation under clear sky condition in Iraq. Calculations were compared with measurements obtained from local station in Baghdad city and from Meteosat satellite data for different locations in Iraq. The statistical test methods of the mean bias error (MBE), root mean square error (RMSE) and t-test were used to evaluate the performance of the model. Results indicated that a fairly good agreement exists between calculated and measured values for all locations in Iraq. Since the model is independent of any meteorological variable, it would be of a practical use for rural areas where no meteorological data are available.

  3. A Study of Postmodern Narrative in Michael Cunningham's The Hours

    Directory of Open Access Journals (Sweden)

    Hajar Abbasi Narinabad

    2012-09-01

    Full Text Available This project aims at providing a detailed analysis of the major features of the theory of postmodern narrative and at going through the novel The Hours by the American writer Michael Cunningham concentrating on some postmodern narrative techniques. To do so, the researcher goes through the theories set forth by some postmodern theoreticians like Roland Barthes, Jacque Derrida, Jean-François Lyotard and Julia Kristeva to investigate the postmodern narrative techniques and elements used in the novel. The researcher first examines the theories and then critically applies them on the novel. The article goes through the most eminent elements of postmodern narrative including intertextuality, stream of consciousness style, fragmentation and representation respectively which are delicately utilized in The Hours. The article concludes by recommending a few directions for the further research.

  4. [COMPREHENSIVE CARE IN THE LAST DAYS AND HOURS OF LIFE].

    Science.gov (United States)

    Galán González-Serna, J M; Morillo Martín, Ma Socorro; Lancharro Tavero, Immaculada; Calvo Cabrera, Isabel Ma; Sánchez Castilla, Ma José

    2015-02-01

    This article identifies the most significant elements of the process of nurse attention to the last days and hours of life in the context of a disease previously diagnosed like a terminal situation. For this object, we have reviewed the main clinical guidelines on comprehensive care and, especially, the guideline that was designed by the Saint John of God Hospital in Seville. We conclude that it is necessary to know how to identify the phase of agony to apply, therefore a default care plan that, allows to respond customized to the specific needs that occur in the last hours of the life of a terminal patient. A continued and coordinated interprofessional assistance to patient and family following standardized standards allows achieving a peaceful death and free from avoidable suffering.

  5. Production Facility Prototype Blower 1000 Hour Test Results II

    Energy Technology Data Exchange (ETDEWEB)

    Wass, Alexander Joseph [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Woloshun, Keith Albert [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Dale, Gregory E. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Dalmas, Dale Allen [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Romero, Frank Patrick [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2018-01-08

    Long duration tests of the Aerzen GM 12.4 roots style blower in a closed loop configuration provides valuable data and lessons learned for long-term operation at the Mo-99 production facility. The blower was operated in a closed loop configuration with the flow conditions anticipated in plant operation with a Mo-100 target inline. The additional thermal energy generated from beam heating of the Mo-100 disks were not included in these tests. Five 1000 hour tests have been completed since the first test was performed in January of 2016. All five 1000 hour tests have proven successful in exposing preventable issues related to oil and helium leaks. All blower tests to this date have resulted in stable blower performance and consistency. A summary of the results for each test, including a review of the first and second tests, are included in this report.

  6. The parameters of a national minimum hourly wage

    OpenAIRE

    Askenazy, Philippe

    2014-01-01

    Both academic and political debates over the minimum wage generally focus on the minimum wage rate. However, the minimum wage is a complex institution composed of a wide variety of parameters. In this note, I show that nominal rates provide a very crude picture of minimal compensation and of actual employer cost by the comparison of the French, British and US Federal national minimum hourly wages. The extent of their coverage, enforcement procedures, and how the “wage” is defined differ widel...

  7. Sleepless vigilance: "Stonewall" Jackson and the duty hours controversy.

    Science.gov (United States)

    Mackowiak, Philip A; Billings, Frederic T; Wasserman, Steven S

    2012-02-01

    Confederate general "Stonewall" Jackson has been called "one of the greatest military geniuses the world ever saw." However, on critical review of his command decisions during the course of 12 of the 20 battles he fought during the American Civil War, historians have rated his performance as poor. In this investigation, the authors examined the effect of sleep deprivation on Jackson's battle decisions in light of experimental data driving current calls for limiting the duty hours of physicians.

  8. Student midwives' duty hours: risks, standards, and recommendations.

    Science.gov (United States)

    Lawrence, Rachel; Kantrowitz-Gordon, Ira; Landis, Andrea

    2014-01-01

    A growing body of literature has emerged describing the risks of extended-duty shifts and sleep deprivation. Worldwide, midwifery organizations have not adopted standards for practitioner or student duty shifts. This project reviews the literature related to extended-duty shifts in an effort to develop evidence-based recommendations for student nurse-midwives/student midwives (SNMs/SMs). A comprehensive literature search was conducted through electronic databases, major journals, and reference lists published in English since January 2001. Primary research studies evaluating sleep deprivation and shift duration were included. Studies that did not include the target population (shift workers) and those that formed conclusions related to extended-duty shifts greater than 30 hours were excluded. In addition, an extensive worldwide review of duty-hour recommendations from more than 300 health care organizations was conducted. A total of 40 studies met the inclusion criteria. Extended-duty shifts (those greater than 12 hours) increased the risk for cognitive and physical functional errors, safety concerns, and decreased quality of life from sleep deprivation. Cognitive function errors included attention lapses, visual tracking errors, decreased mentation and immediate recall, and decreased learning capacity. Physical errors included decreased motor skills and slowed reaction times in clinical simulations. These deficits led to an increased risk of motor vehicle accidents, needle sticks, and performance equivalent to unsafe blood alcohol concentrations. An overall decrease in quality of life and job satisfaction was linked to extended-duty shifts. Seven organizations for medical residents or advanced practice nurses have developed policy statements on duty shifts, with extended-duty shift limitations between 12 and 24 hours. The risks associated with extended-duty shifts may inhibit the development of SNMs/SMs into competent practitioners and place patients at risk. It

  9. RBC Models and the Hours-Wages Puzzle: Puzzle Solved!

    OpenAIRE

    Vasilev, Aleksandar

    2015-01-01

    This paper shows that a modified real business cycle (RBC) model, one that includes home production and fiscal spending shocks, can solve one of the RBC puzzles and generates zero correlation between wages and hours. In addition, the micro-founded model presented here provides a sound theoretical model to analyze fiscal policy in a neoclassical framework and is able to capture many aspects of the data that the benchmark RBC model was missing.

  10. Contaminated concrete: Occurrence and emerging technologies for DOE decontamination

    International Nuclear Information System (INIS)

    Dickerson, K.S.; Wilson-Nichols, M.J.; Morris, M.I.

    1995-08-01

    The goals of the Facility Deactivation, Decommissioning, and Material Disposition Focus Area, sponsored by the US Department of Energy (DOE) Office of Technology Development, are to select, demonstrate, test, and evaluate an integrated set of technologies tailored to provide a complete solution to specific problems posed by deactivation, decontamination, and decommissioning, (D ampersand D). In response to these goals, technical task plan (TTP) OR152002, entitled Accelerated Testing of Concrete Decontamination Methods, was submitted by Oak Ridge National Laboratory. This report describes the results from the initial project tasks, which focused on the nature and extent of contaminated concrete, emerging candidate technologies, and matching of emerging technologies to concrete problems. Existing information was used to describe the nature and extent of contamination (technology logic diagrams, data bases, and the open literature). To supplement this information, personnel at various DOE sites were interviewed, providing a broad perspective of concrete contamination. Because characterization is in the initial stage at many sites, complete information is not available. Assimilation of available information into one location is helpful in identifying potential areas of concern in the future. The most frequently occurring radiological contaminants within the DOE complex are 137 Cs, 238 U (and it daughters), and 60 Co, followed closely by 90 Sr and tritium, which account for -30% of the total occurrence. Twenty-four percent of the contaminants were listed as unknown, indicating a lack of characterization information, and 24% were listed as other contaminants (over 100 isotopes) with less than 1% occurrence per isotope

  11. Aggressive behavior during the first 24 hours of psychiatric admission

    Directory of Open Access Journals (Sweden)

    Vitor Crestani Calegaro

    2014-09-01

    Full Text Available OBJECTIVE: To investigate the association between aggression in the first 24 hours after admission and severity of psychopathology in psychiatric inpatients.METHODS: This cross-sectional study included psychiatric patients admitted to Hospital Universitário de Santa Maria, in Santa Maria, southern Brazil, from August 2012 to January 2013. At their arrival at the hospital, patients were interviewed to fill in the Brief Psychiatric Rating Scale (BPRS form, and any aggressive episodes in the first 24 hours after admission were recorded using the Overt Aggression Scale (OAS. The Mann-Whitney U test was used to compare patients according to aggressiveness: aggressive versus non-aggressive, hostile versus violent, and aggressive against others only versus self-aggressive.RESULTS: The sample was composed of 110 patients. Aggressive patients in general had higher BPRS total scores (p = 0.002 and individual component scores, and their results showed more activation (p < 0.001 and thinking disorders (p = 0.009, but less anxious-depression (p = 0.008. Violent patients had more severe psychomotor agitation (p = 0.027, hallucinations (p = 0.017 and unusual thought content (p = 0.020. Additionally, self-aggressive patients had more disorientation (p = 0.011 and conceptual disorganization (p = 0.007.CONCLUSIONS: Aggression in psychiatric patients in the first 24 hours after admission is associated with severity of psychopathology, and severity increases with severity of patient psychosis and agitation.

  12. Bias caused by water adsorption in hourly PM measurements

    Science.gov (United States)

    Kiss, Gyula; Imre, Kornélia; Molnár, Ágnes; Gelencsér, András

    2017-07-01

    Beta-attenuation monitors are used worldwide to monitor PM mass concentration with high temporal resolution. Hourly PM10 and PM2. 5 dry mass concentrations are publicly available with the tacit assumption that water is effectively removed prior to the measurement. However, as both the filter material of the monitor and the aerosol particles are capable of retaining a significant amount of water even at low relative humidities, the basic assumption may not be valid, resulting in significant bias in reported PM10 and PM2. 5 concentrations. Here we show that in PM10 measurement, particle-free air can produce apparent hourly average PM concentrations in the range of -13-+21 µg m-3 under conditions of fluctuating relative humidity. Positive and negative apparent readings are observed with increasing and decreasing relative humidities, respectively. Similar phenomena have been observed when the instrument filter was previously loaded with atmospheric aerosol. As a result the potential measurement biases in hourly readings arising from the interaction with water may be in the range of -53… + 69 %.

  13. Forecasting Kp from solar wind data: input parameter study using 3-hour averages and 3-hour range values

    Directory of Open Access Journals (Sweden)

    Wintoft Peter

    2017-01-01

    Full Text Available We have developed neural network models that predict Kp from upstream solar wind data. We study the importance of various input parameters, starting with the magnetic component Bz, particle density n, and velocity V and then adding total field B and the By component. As we also notice a seasonal and UT variation in average Kp we include functions of day-of-year and UT. Finally, as Kp is a global representation of the maximum range of geomagnetic variation over 3-hour UT intervals we conclude that sudden changes in the solar wind can have a big effect on Kp, even though it is a 3-hour value. Therefore, 3-hour solar wind averages will not always appropriately represent the solar wind condition, and we introduce 3-hour maxima and minima values to some degree address this problem. We find that introducing total field B and 3-hour maxima and minima, derived from 1-minute solar wind data, have a great influence on the performance. Due to the low number of samples for high Kp values there can be considerable variation in predicted Kp for different networks with similar validation errors. We address this issue by using an ensemble of networks from which we use the median predicted Kp. The models (ensemble of networks provide prediction lead times in the range 20–90 min given by the time it takes a solar wind structure to travel from L1 to Earth. Two models are implemented that can be run with real time data: (1 IRF-Kp-2017-h3 uses the 3-hour averages of the solar wind data and (2 IRF-Kp-2017 uses in addition to the averages, also the minima and maxima values. The IRF-Kp-2017 model has RMS error of 0.55 and linear correlation of 0.92 based on an independent test set with final Kp covering 2 years using ACE Level 2 data. The IRF-Kp-2017-h3 model has RMSE = 0.63 and correlation = 0.89. We also explore the errors when tested on another two-year period with real-time ACE data which gives RMSE = 0.59 for IRF-Kp-2017 and RMSE = 0.73 for IRF

  14. Forecasting Kp from solar wind data: input parameter study using 3-hour averages and 3-hour range values

    Science.gov (United States)

    Wintoft, Peter; Wik, Magnus; Matzka, Jürgen; Shprits, Yuri

    2017-11-01

    We have developed neural network models that predict Kp from upstream solar wind data. We study the importance of various input parameters, starting with the magnetic component Bz, particle density n, and velocity V and then adding total field B and the By component. As we also notice a seasonal and UT variation in average Kp we include functions of day-of-year and UT. Finally, as Kp is a global representation of the maximum range of geomagnetic variation over 3-hour UT intervals we conclude that sudden changes in the solar wind can have a big effect on Kp, even though it is a 3-hour value. Therefore, 3-hour solar wind averages will not always appropriately represent the solar wind condition, and we introduce 3-hour maxima and minima values to some degree address this problem. We find that introducing total field B and 3-hour maxima and minima, derived from 1-minute solar wind data, have a great influence on the performance. Due to the low number of samples for high Kp values there can be considerable variation in predicted Kp for different networks with similar validation errors. We address this issue by using an ensemble of networks from which we use the median predicted Kp. The models (ensemble of networks) provide prediction lead times in the range 20-90 min given by the time it takes a solar wind structure to travel from L1 to Earth. Two models are implemented that can be run with real time data: (1) IRF-Kp-2017-h3 uses the 3-hour averages of the solar wind data and (2) IRF-Kp-2017 uses in addition to the averages, also the minima and maxima values. The IRF-Kp-2017 model has RMS error of 0.55 and linear correlation of 0.92 based on an independent test set with final Kp covering 2 years using ACE Level 2 data. The IRF-Kp-2017-h3 model has RMSE = 0.63 and correlation = 0.89. We also explore the errors when tested on another two-year period with real-time ACE data which gives RMSE = 0.59 for IRF-Kp-2017 and RMSE = 0.73 for IRF-Kp-2017-h3. The errors as function

  15. Duty hours as viewed through a professionalism lens.

    Science.gov (United States)

    Ginsburg, Shiphra

    2014-01-01

    Understanding medical professionalism and its evaluation is essential to ensuring that physicians graduate with the requisite knowledge and skills in this domain. It is important to consider the context in which behaviours occur, along with tensions between competing values and the individual’s approach to resolving such conflicts. However, too much emphasis on behaviours can be misleading, as they may not reflect underlying attitudes or professionalism in general. The same behaviour can be viewed and evaluated quite differently, depending on the situation. These concepts are explored and illustrated in this paper in the context of duty hour regulations. The regulation of duty hours creates many conflicts that must be resolved, and yet their resolution is often hidden, especially when compliance with or violation of regulations carries significant consequences. This article challenges attending physicians and the medical education community to reflect on what we value in our trainees and the attributions we make regarding their behaviours. To fully support our trainees’ development as professionals, we must create opportunities to teach them the valuable skills they will need to achieve balance in their lives. [P]rofessionalism has no meaningful existence independent of the interactions that give it form and meaning. There is great folly in thinking otherwise. Hafferty and Levinson (2008)[1] Understanding and evaluating professionalism is essential to excellence in medical education and is mandated by organizations that oversee medical training [2]. Historically, attention has been focused largely on the professionalism of individual students or residents, at least for the purposes of evaluation. Yet there is now a growing appreciation that professionalism can be defined, understood, and evaluated from multiple perspectives [3]. Importantly, context has been recognized as critical to shaping trainees’ behaviours, and hence as important to our understanding of

  16. Disaggregation of Rainy Hours: Compared Performance of Various Models.

    Science.gov (United States)

    Ben Haha, M.; Hingray, B.; Musy, A.

    In the urban environment, the response times of catchments are usually short. To de- sign or to diagnose waterworks in that context, it is necessary to describe rainfall events with a good time resolution: a 10mn time step is often necessary. Such in- formation is not always available. Rainfall disaggregation models have thus to be applied to produce from rough rainfall data that short time resolution information. The communication will present the performance obtained with several rainfall dis- aggregation models that allow for the disaggregation of rainy hours into six 10mn rainfall amounts. The ability of the models to reproduce some statistical character- istics of rainfall (mean, variance, overall distribution of 10mn-rainfall amounts; ex- treme values of maximal rainfall amounts over different durations) is evaluated thanks to different graphical and numerical criteria. The performance of simple models pre- sented in some scientific papers or developed in the Hydram laboratory as well as the performance of more sophisticated ones is compared with the performance of the basic constant disaggregation model. The compared models are either deterministic or stochastic; for some of them the disaggregation is based on scaling properties of rainfall. The compared models are in increasing complexity order: constant model, linear model (Ben Haha, 2001), Ormsbee Deterministic model (Ormsbee, 1989), Ar- tificial Neuronal Network based model (Burian et al. 2000), Hydram Stochastic 1 and Hydram Stochastic 2 (Ben Haha, 2001), Multiplicative Cascade based model (Olsson and Berndtsson, 1998), Ormsbee Stochastic model (Ormsbee, 1989). The 625 rainy hours used for that evaluation (with a hourly rainfall amount greater than 5mm) were extracted from the 21 years chronological rainfall series (10mn time step) observed at the Pully meteorological station, Switzerland. The models were also evaluated when applied to different rainfall classes depending on the season first and on the

  17. Health and psychosocial effects of flexible working hours

    Directory of Open Access Journals (Sweden)

    Daniela Janssen

    2004-12-01

    Full Text Available OBJECTIVE: To examine whether any impairments in health and social lives can be found under different kinds of flexible working hours, and whether such effects are related to specific characteristics of these working hours. METHODS: Two studies - a company based survey (N=660 and an internet survey (N=528 - have been conducted. The first one was a questionnaire study (paper and pencil on employees working under some 'typical' kinds of different flexible working time arrangements in different companies and different occupational fields (health care, manufacturing, retail, administration, call centres. The second study was an internet-based survey, using an adaptation of the questionnaire from the first study. RESULTS: The results of both studies consistently show that high variability of working hours is associated with increased impairments in health and well-being and this is especially true if this variability is company controlled. These effects are less pronounced if variability is self-controlled; however, autonomy does not compensate the effects of variability. CONCLUSIONS: Recommendations for an appropriate design of flexible working hours should be developed in order to minimize any impairing effects on health and psychosocial well-being; these recommendations should include - besides allowing for discretion in controlling one's (flexible working hours - that variability in flexible working hours should be kept low (or at least moderate, even if this variability is self-controlled.OBJETIVO: Investigar se ocorre prejuízo à saúde e à vida social com diferentes tipos de horas de trabalho flexíveis e se há relação entre estes efeitos e características específicas das horas de trabalho. MÉTODOS: Foram realizados dois estudos, uma pesquisa em uma empresa (N=660 e outra pela Internet (N=528. O primeiro estudo consistiu de um questionário (papel e lápis aplicado a funcionários sujeitos a diferentes ajustes "típicos" de horas de

  18. Illegitimate tasks reach into afterwork hours: A multilevel study.

    Science.gov (United States)

    Sonnentag, Sabine; Lischetzke, Tanja

    2018-04-01

    This study examines illegitimate tasks as a specific type of job stressors. Illegitimate tasks comprise unreasonable and unnecessary tasks and refer to inappropriate task assignments that go beyond an employee's role requirements. Building on the stressor-detachment model, we hypothesized that illegitimate tasks experienced during the day predict high negative affect and low self-esteem at the end of the workday, which in turn should predict poor psychological detachment from work during evening hours, resulting in sustained high levels of negative affect and low self-esteem at bedtime. Over the course of 1 workweek, 137 employees completed daily surveys at the end of the workday and at bedtime (total of 567 days). Multilevel path modeling revealed a distinct pattern of findings at the day and the person level. At the day level, unnecessary tasks predicted high negative affect and low self-esteem at the end of the workday, with low self-esteem predicting poor psychological detachment from work during afterwork hours. Poor psychological detachment predicted a further increase in negative affect and a decrease in self-esteem over evening hours. At the between-person level, unreasonable tasks were related to high negative affect and low self-esteem at the end of the workday, with negative affect being related to poor psychological detachment from work. Overall, the findings demonstrate that illegitimate tasks are associated with unfavorable states at the end of the workday and are indirectly related to poor psychological detachment from work, undermining recovery from the stressful events experienced at work. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

  19. Hourly weather forecasts for gas turbine power generation

    Directory of Open Access Journals (Sweden)

    G. Giunta

    2017-06-01

    Full Text Available An hourly short-term weather forecast can optimize processes in Combined Cycle Gas Turbine (CCGT plants by helping to reduce imbalance charges on the national power grid. Consequently, a reliable meteorological prediction for a given power plant is crucial for obtaining competitive prices for the electric market, better planning and stock management, sales and supplies of energy sources. The paper discusses the short-term hourly temperature forecasts, at lead time day+1 and day+2, over a period of thirteen months in 2012 and 2013 for six Italian CCGT power plants of 390 MW each (260 MW from the gas turbine and 130 MW from the steam turbine. These CCGT plants are placed in three different Italian climate areas: the Po Valley, the Adriatic coast, and the North Tyrrhenian coast. The meteorological model applied in this study is the eni-Kassandra Meteo Forecast (e‑kmf™, a multi-model approach system to provide probabilistic forecasts with a Kalman filter used to improve accuracy of local temperature predictions. Performance skill scores, computed by the output data of the meteorological model, are compared with local observations, and used to evaluate forecast reliability. In the study, the approach has shown good overall scores encompassing more than 50,000 hourly temperature values. Some differences from one site to another, due to local meteorological phenomena, can affect the short-term forecast performance, with consequent impacts on gas-to-power production and related negative imbalances. For operational application of the methodology in CCGT power plant, the benefits and limits have been successfully identified.

  20. Eleventh Hour Network+ Exam N10-004 Study Guide

    CERN Document Server

    Alpern, Naomi

    2009-01-01

    The 11th Hour Network+ Study Guide is keyed to the N10-004 revision of the CompTIA Network+ exam. This book is streamlined to include only core certification information and is presented for ease of last-minute studying. Main objectives of the exam are covered with key concepts highlighted. ..: ..; Fast Facts quickly review fundamentals ..; Exam Warnings highlight particularly tough sections of the exam ..; Crunch Time sidebars point out key concepts to remember ..; Did You Know? sidebars cover sometimes forgotten details ..; Top Five Toughest Questions and answers help you to prepare ..

  1. NASA 50 amp hour nickel cadmium battery waste heat determination

    Science.gov (United States)

    Mueller, V. C.

    1980-01-01

    A process for determining the waste heat generated in a 50-ampere-hour, nickel cadmium battery as a function of the discharge rate is described and results are discussed. The technique involved is essentially calibration of the battery as a heat transfer rate calorimeter. The tests are run at three different levels of battery activity, one at 40-watts of waste heat generated, one at 60, and one at 100. Battery inefficiency ranges from 14 to 18 percent at discharge rates of 284 to 588 watts, respectively and top-of-cell temperatures of 20 C.

  2. Provisional hourly values of equatorial Dst for 1971

    Science.gov (United States)

    Sugiura, M.; Poros, D. J.

    1972-01-01

    Tables and plots of provisional hourly values of the equatorial Dst index for 1971 are given, a table of daily mean Dst values for 1971 is also provided. The base line values for the four observatories, Hermanus, Kakioka, Honolulu, and San Juan, were obtained from extrapolations using the coefficients for the secular variations determined for the previous years. Examining the Dst values for quiet days, the base lines so determined appear to be slightly low, so that the Dst index for quiet periods tends to be high.

  3. Penile Replantation After Five Hours of Warm Ischemia

    Directory of Open Access Journals (Sweden)

    Fernando N. Facio Jr.

    2015-05-01

    Full Text Available Although a rare occurrence, this event may occur as a result of self-mutilation among individuals with psychiatric disturbances or due to work-related accidents, iatrogenic injuries or the actions of individuals motivated by jealously, rage and feelings of betrayal. In western societies, most penile amputations are the result of self-aggression during a psychotic episode, the treatment of victims involves resuscitation, stabilization and immediate psychiatric support. The amputated tissue must be preserved under hypothermic conditions. Micro-surgery is currently the most widely employed method for penile replantation. This paper describes a successful case of penile replantation following 5 hours of warm ischemia.

  4. LinkedIn Marketing An Hour a Day

    CERN Document Server

    von Rosen, Viveka

    2012-01-01

    A step-by-step guide for succeeding on the for ''business'' social media network LinkedIn Marketing: An Hour a Day helps you create, customize, and optimize a presence on LinkedIn, the world's largest social network for professionals. In this detailed, step-by-step book, LinkedIn expert Viveka von Rosen reveals how to use this powerful platform to ensure that you or your company get noticed by the right audience. Discover previously undocumented tips and tricks for community growth and management, including how to best use Groups, events, and other LinkedIn features and applications. Offers a

  5. Followup Audit of the European Theater C-9A Aircraft Flying Hour Program

    National Research Council Canada - National Science Library

    1999-01-01

    The audit objective was to review the flying hour program to determine the flying hours required, considering a redefined mission for the C-9A aircraft and the flying hours necessary to meet air crew...

  6. Assessing Hourly Precipitation Forecast Skill with the Fractions Skill Score

    Science.gov (United States)

    Zhao, Bin; Zhang, Bo

    2018-02-01

    Statistical methods for category (yes/no) forecasts, such as the Threat Score, are typically used in the verification of precipitation forecasts. However, these standard methods are affected by the so-called "double-penalty" problem caused by slight displacements in either space or time with respect to the observations. Spatial techniques have recently been developed to help solve this problem. The fractions skill score (FSS), a neighborhood spatial verification method, directly compares the fractional coverage of events in windows surrounding the observations and forecasts. We applied the FSS to hourly precipitation verification by taking hourly forecast products from the GRAPES (Global/Regional Assimilation Prediction System) regional model and quantitative precipitation estimation products from the National Meteorological Information Center of China during July and August 2016, and investigated the difference between these results and those obtained with the traditional category score. We found that the model spin-up period affected the assessment of stability. Systematic errors had an insignificant role in the fraction Brier score and could be ignored. The dispersion of observations followed a diurnal cycle and the standard deviation of the forecast had a similar pattern to the reference maximum of the fraction Brier score. The coefficient of the forecasts and the observations is similar to the FSS; that is, the FSS may be a useful index that can be used to indicate correlation. Compared with the traditional skill score, the FSS has obvious advantages in distinguishing differences in precipitation time series, especially in the assessment of heavy rainfall.

  7. Stochastic generation of hourly rainstorm events in Johor

    Energy Technology Data Exchange (ETDEWEB)

    Nojumuddin, Nur Syereena; Yusof, Fadhilah [Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor (Malaysia); Yusop, Zulkifli [Institute of Environmental and Water Resources Management, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor (Malaysia)

    2015-02-03

    Engineers and researchers in water-related studies are often faced with the problem of having insufficient and long rainfall record. Practical and effective methods must be developed to generate unavailable data from limited available data. Therefore, this paper presents a Monte-Carlo based stochastic hourly rainfall generation model to complement the unavailable data. The Monte Carlo simulation used in this study is based on the best fit of storm characteristics. Hence, by using the Maximum Likelihood Estimation (MLE) and Anderson Darling goodness-of-fit test, lognormal appeared to be the best rainfall distribution. Therefore, the Monte Carlo simulation based on lognormal distribution was used in the study. The proposed model was verified by comparing the statistical moments of rainstorm characteristics from the combination of the observed rainstorm events under 10 years and simulated rainstorm events under 30 years of rainfall records with those under the entire 40 years of observed rainfall data based on the hourly rainfall data at the station J1 in Johor over the period of 1972–2011. The absolute percentage error of the duration-depth, duration-inter-event time and depth-inter-event time will be used as the accuracy test. The results showed the first four product-moments of the observed rainstorm characteristics were close with the simulated rainstorm characteristics. The proposed model can be used as a basis to derive rainfall intensity-duration frequency in Johor.

  8. Stochastic generation of hourly rainstorm events in Johor

    International Nuclear Information System (INIS)

    Nojumuddin, Nur Syereena; Yusof, Fadhilah; Yusop, Zulkifli

    2015-01-01

    Engineers and researchers in water-related studies are often faced with the problem of having insufficient and long rainfall record. Practical and effective methods must be developed to generate unavailable data from limited available data. Therefore, this paper presents a Monte-Carlo based stochastic hourly rainfall generation model to complement the unavailable data. The Monte Carlo simulation used in this study is based on the best fit of storm characteristics. Hence, by using the Maximum Likelihood Estimation (MLE) and Anderson Darling goodness-of-fit test, lognormal appeared to be the best rainfall distribution. Therefore, the Monte Carlo simulation based on lognormal distribution was used in the study. The proposed model was verified by comparing the statistical moments of rainstorm characteristics from the combination of the observed rainstorm events under 10 years and simulated rainstorm events under 30 years of rainfall records with those under the entire 40 years of observed rainfall data based on the hourly rainfall data at the station J1 in Johor over the period of 1972–2011. The absolute percentage error of the duration-depth, duration-inter-event time and depth-inter-event time will be used as the accuracy test. The results showed the first four product-moments of the observed rainstorm characteristics were close with the simulated rainstorm characteristics. The proposed model can be used as a basis to derive rainfall intensity-duration frequency in Johor

  9. Stochastic generation of hourly rainstorm events in Johor

    Science.gov (United States)

    Nojumuddin, Nur Syereena; Yusof, Fadhilah; Yusop, Zulkifli

    2015-02-01

    Engineers and researchers in water-related studies are often faced with the problem of having insufficient and long rainfall record. Practical and effective methods must be developed to generate unavailable data from limited available data. Therefore, this paper presents a Monte-Carlo based stochastic hourly rainfall generation model to complement the unavailable data. The Monte Carlo simulation used in this study is based on the best fit of storm characteristics. Hence, by using the Maximum Likelihood Estimation (MLE) and Anderson Darling goodness-of-fit test, lognormal appeared to be the best rainfall distribution. Therefore, the Monte Carlo simulation based on lognormal distribution was used in the study. The proposed model was verified by comparing the statistical moments of rainstorm characteristics from the combination of the observed rainstorm events under 10 years and simulated rainstorm events under 30 years of rainfall records with those under the entire 40 years of observed rainfall data based on the hourly rainfall data at the station J1 in Johor over the period of 1972-2011. The absolute percentage error of the duration-depth, duration-inter-event time and depth-inter-event time will be used as the accuracy test. The results showed the first four product-moments of the observed rainstorm characteristics were close with the simulated rainstorm characteristics. The proposed model can be used as a basis to derive rainfall intensity-duration frequency in Johor.

  10. First Hours of the GW170817 Kilonova: Why So Blue?

    Science.gov (United States)

    Kohler, Susanna

    2018-04-01

    Now that the hubbub of GW170817 the first coincident detection of gravitational waves and an electromagnetic signature has died down, scientists are left with the task of taking the spectrum-spanning observations and piecing them together into a coherent picture. Researcher Iair Arcavi examines one particular question: what caused the blue color in the early hours of the neutron-star merger?Observations of the GW170817 kilonova by Hubble over a week-long span. [ESA/Hubble]Early ColorWhen the two neutron stars of GW170817 merged in August of last year, they produced not only gravitational waves, but a host of electromagnetic signatures. Chief among these was a flare of emission thought to be powered by the radioactive decay of heavy elements formed in the merger a kilonova.The emission during a kilonova can come from a number of different sources from the heavy-element-rich tidal tails of the disrupting neutron stars, or from fast, light polar jets, or from a wind or a disk outflow and each of these components could reveal different information about the original neutron stars and the merger.Its therefore important that we understand the sources of the emission that we observed in the GW170817 kilonova. In particular, wed like to know where the early blue emission came from that was spotted in the first hours of the kilonova.The combined ultravioletopticalinfrared light curve of the GW170817 kilonova. The rise in the emission occurs on roughly a day-long timescale. [Arcavi 2018]Comparing ModelsTo explore this question, Iair Arcavi (Einstein Fellow at University of California, Santa Barbara and Las Cumbres Observatory) compiled infrared through ultraviolet observations of the GW170817 kilonova from nearly 20 different telescopes. To try to distinguish between possible sources, Arcavi then compared the resulting combined light curves to a variety of models.Arcavi found that the light curves for the GW170817 kilonova indicate an initial 24-hour rise of emission. This

  11. SharePoint Server 2010 Administration 24 Hour Trainer

    CERN Document Server

    Crider, Bill; Richardson, Clint

    2012-01-01

    Get quickly up to speed on SharePoint Server 2010! Covering all aspects of the SharePoint technology, this unique book-and-DVD combination provides expert guidance within each lesson in the book, which is then supplemented on the instructional DVD. The authors expose you to a variety of SharePoint Server 2010 topics, from organization concerns to training plans to programmer best practices, all aimed at helping you effortlessly find your way around SharePoint without a deep knowledge of the technology. You’ll quickly learn to configure and administer a site or site collection using this

  12. Laser Technology.

    Science.gov (United States)

    Gauger, Robert

    1993-01-01

    Describes lasers and indicates that learning about laser technology and creating laser technology activities are among the teacher enhancement processes needed to strengthen technology education. (JOW)

  13. Stochastic generation of hourly wind speed time series

    International Nuclear Information System (INIS)

    Shamshad, A.; Wan Mohd Ali Wan Hussin; Bawadi, M.A.; Mohd Sanusi, S.A.

    2006-01-01

    In the present study hourly wind speed data of Kuala Terengganu in Peninsular Malaysia are simulated by using transition matrix approach of Markovian process. The wind speed time series is divided into various states based on certain criteria. The next wind speed states are selected based on the previous states. The cumulative probability transition matrix has been formed in which each row ends with 1. Using the uniform random numbers between 0 and 1, a series of future states is generated. These states have been converted to the corresponding wind speed values using another uniform random number generator. The accuracy of the model has been determined by comparing the statistical characteristics such as average, standard deviation, root mean square error, probability density function and autocorrelation function of the generated data to those of the original data. The generated wind speed time series data is capable to preserve the wind speed characteristics of the observed data

  14. World: 2508 nuclear tera-watts hour in 1999

    International Nuclear Information System (INIS)

    Anon.

    2000-01-01

    In 1999, the nuclear power plants have produced 2508 tera-watts hour, that is to say 16% of the normal electricity production or 35% of the European electric production. At the end of 1999, 443 reactors were in operation, 53 were in building and 13 put in an order in the world. 5 reactors have been coupled to the network in South Korea, in France, in India, in Slovakia and 2 have been definitively stopped (Kazakhstan and Sweden). 1999 has seen the beginning of construction for 8 reactors (China, South Korea, Japan and Taiwan). The nuclear power has covered 40 % of needs for 8 countries: France (75%), Lithuania (73%) Belgium (58%), Sweden (46%), Slovakia (45%), Ukraine (43.5%), South Korea ( 43%), Bulgaria ( 41.5%). 18 countries have used nuclear energy to cover at least 25% of their needs. (N.C.)

  15. The hour equivalent solar pick, definition and interpretation

    International Nuclear Information System (INIS)

    Pérez Martínez, Maykop; Morales Rodríguez; Clemente; Castro Ingeniero, Elio

    2017-01-01

    Photovoltaic solar energy takes advantage of the light energy of the sun to produce electricity through semiconductor plates that are altered by solar radiation, these systems are called Photovoltaic Solar Panels (PSP). In order to calculate the energy absorbed by these PSPs, it is necessary to use technical terms that are a little difficult to interpret, for those less experienced in the subject, above all because of the ambiguity, the level of abstraction required in their understanding and the variety of ways of expressing very similar ideas without offering a clear and unique definition. The main term to which this article is dedicated is the Hour Solar Pick (HSP), which in the experiences of the authors has generated strong discussions about its interpretation. In order to arrive at the desired term, it is necessary to start with others, so the aim is to propose a definition and physical and mathematical interpretation to clarify the meaning of this term. (author)

  16. Hourly rounding and patient falls: what factors boost success?

    Science.gov (United States)

    Goldsack, Jennifer; Bergey, Meredith; Mascioli, Susan; Cunningham, Janet

    2015-02-01

    Falls are a persistent problem in all healthcare settings, with rates in acute care hospitals ranging from 1.3 to 8.9 falls per 1,000 inpatient days, about 30% resulting in serious injury. A 30-day prospective pilot study was conducted on two units with pre- and postimplementation evaluation to determine the impact of patient-centered proactive hourly rounding on patient falls as part of a Lean Six Sigma process improvement project. Nurse leaders and a staff champion from Unit 1 were involved in the process from the start of the implementation period, while Unit 2 was introduced to the project for training shortly before the intervention began. On Unit 1, where staff and leadership were engaged in the project from the outset, the 1-year baseline mean fall rate was 3.9 falls/1,000 patient days. The pilot period fall rate of 1.3 falls/1,000 patient days was significantly lower than the baseline fall rate (P = 0.006). On Unit 2, where there was no run-in period, the 1-year baseline mean fall rate was 2.6 falls/1,000 patient days, which fell, but not significantly, to 2.5 falls/1,000 patient days during the pilot period (P = 0.799). Engaging an interdisciplinary team, including leadership and unit champions, to complete a Lean Six Sigma process improvement project and implement a patient-centered proactive hourly rounding program was associated with a significant reduction in the fall rate in Unit 1. Implementation of the same program in Unit 2 without engaging leadership or front-line staff in program design did not impact its fall rate. The active involvement of leadership and front-line staff in program design and as unit champions during the project run-in period was critical to significantly reducing inpatient fall rates and call bell use in an adult medical unit.

  17. Identifying Factors Reinforcing Robotization: Interactive Forces of Employment, Working Hour and Wage

    Directory of Open Access Journals (Sweden)

    Joonmo Cho

    2018-02-01

    Full Text Available Unlike previous studies on robotization approaching the future based on the cutting-edge technologies and adopting a framework where robotization is considered as an exogenous variable, this study considers that robotization occurs endogenously and uses it as a dependent variable for an objective examination of the effect of robotization on the labor market. To this end, a robotization indicator is created based on the actual number of industrial robots currently deployed in workplaces, and a multiple regression analysis is performed using the robotization indicator and labor variables such as employment, working hours, and wage. The results using the multiple regression considering the triangular relationship of employment–working-hours–wages show that job destruction due to robotization is not too remarkable yet that use. Our results show the complementary relation between employment and robotization, but the substituting relation between working hour and robotization. The results also demonstrate the effects of union, the size of the company and the proportion of production workers and simple labor workers etc. These findings indicate that the degree of robotization may vary with many factors of the labor market. Limitations of this study and implications for future research are also discussed.

  18. A methodology for the stochastic generation of hourly synthetic direct normal irradiation time series

    Science.gov (United States)

    Larrañeta, M.; Moreno-Tejera, S.; Lillo-Bravo, I.; Silva-Pérez, M. A.

    2018-02-01

    Many of the available solar radiation databases only provide global horizontal irradiance (GHI) while there is a growing need of extensive databases of direct normal radiation (DNI) mainly for the development of concentrated solar power and concentrated photovoltaic technologies. In the present work, we propose a methodology for the generation of synthetic DNI hourly data from the hourly average GHI values by dividing the irradiance into a deterministic and stochastic component intending to emulate the dynamics of the solar radiation. The deterministic component is modeled through a simple classical model. The stochastic component is fitted to measured data in order to maintain the consistency of the synthetic data with the state of the sky, generating statistically significant DNI data with a cumulative frequency distribution very similar to the measured data. The adaptation and application of the model to the location of Seville shows significant improvements in terms of frequency distribution over the classical models. The proposed methodology applied to other locations with different climatological characteristics better results than the classical models in terms of frequency distribution reaching a reduction of the 50% in the Finkelstein-Schafer (FS) and Kolmogorov-Smirnov test integral (KSI) statistics.

  19. Educational Opportunities for the Night People, the Drop-Ins, the Young Adults, the Diaper Crowd, the Mid-Lifers.

    Science.gov (United States)

    Sanders, Martha Dell

    A case is presented for operating schools twenty-four hours a day. This type of program provides benefits for drop-ins, adults, infants, parents, and students. With the technology present in today's society, every person can be provided the kind of education best for their needs. All should have the opportunities, at any age, provided by schools:…

  20. Wind and Photovoltaic Large-Scale Regional Models for hourly production evaluation

    DEFF Research Database (Denmark)

    Marinelli, Mattia; Maule, Petr; Hahmann, Andrea N.

    2015-01-01

    This work presents two large-scale regional models used for the evaluation of normalized power output from wind turbines and photovoltaic power plants on a European regional scale. The models give an estimate of renewable production on a regional scale with 1 h resolution, starting from a mesoscale...... mete- orological data input and taking in account the characteristics of different plants technologies and spatial distribution. An evalu- ation of the hourly forecasted energy production on a regional scale would be very valuable for the transmission system operators when making the long-term planning...... of the transmission system, especially regarding the cross-border power flows. The tuning of these regional models is done using historical meteorological data acquired on a per-country basis and using publicly available data of installed capacity....

  1. Relations of Work Identity, Family Identity, Situational Demands, and Sex with Employee Work Hours

    Science.gov (United States)

    Greenhaus, Jeffrey H.; Peng, Ann C.; Allen, Tammy D.

    2012-01-01

    This study examined relations of multiple indicators of work identity and family identity with the number of weekly hours worked by 193 married business professionals. We found that men generally worked long hours regardless of the situational demands to work long hours and the strength of their work and family identities. Women's work hours, on…

  2. Credit Hours with No Set Time: A Study of Credit Policies in Asynchronous Online Education

    Science.gov (United States)

    Prasuhn, Frederick Carl

    2014-01-01

    U.S. public university system policies were examined to learn how credit hours were determined for asynchronous online education. Findings indicated that (a) credit hour meaning and use are not consistent, (b) primary responsibility for credit hour decisions was at the local level, and (c) no policies exist to guide credit hour application for…

  3. Modelling hourly rates of evaporation from small lakes

    Directory of Open Access Journals (Sweden)

    R. J. Granger

    2011-01-01

    Full Text Available The paper presents the results of a field study of open water evaporation carried out on three small lakes in Western and Northern Canada. In this case small lakes are defined as those for which the temperature above the water surface is governed by the upwind land surface conditions; that is, a continuous boundary layer exists over the lake, and large-scale atmospheric effects such as entrainment do not come into play. Lake evaporation was measured directly using eddy covariance equipment; profiles of wind speed, air temperature and humidity were also obtained over the water surfaces. Observations were made as well over the upwind land surface.

    The major factors controlling open water evaporation were examined. The study showed that for time periods shorter than daily, the open water evaporation bears no relationship to the net radiation; the wind speed is the most significant factor governing the evaporation rates, followed by the land-water temperature contrast and the land-water vapour pressure contrast. The effect of the stability on the wind field was demonstrated; relationships were developed relating the land-water wind speed contrast to the land-water temperature contrast. The open water period can be separated into two distinct evaporative regimes: the warming period in the Spring, when the land is warmer than the water, the turbulent fluxes over water are suppressed; and the cooling period, when the water is warmer than the land, the turbulent fluxes over water are enhanced.

    Relationships were developed between the hourly rates of lake evaporation and the following significant variables and parameters (wind speed, land-lake temperature and humidity contrasts, and the downwind distance from shore. The result is a relatively simple versatile model for estimating the hourly lake evaporation rates. The model was tested using two independent data sets. Results show that the modelled evaporation follows the observed values

  4. Humanization of medical education: Need of the hour

    Directory of Open Access Journals (Sweden)

    K. A. Kumar

    2014-01-01

    Full Text Available Though the importance of psychological factors in maintenance of health, as well as etiology and prognosis of diseases have been recognized in ancient medicine by discerning and thoughtful clinicians in all ages, for the large majority of the practitioners such a perception has not been there. A cross-sectional, organ-based, and symptom-centered clinical approach was largely prevalent in day-to-day medicine. Medical training also followed more or less the same path. The positive psychological and behavioral qualities needed in the physician are left to the individual student to develop on his own during studies or to the physician afterwards. Some do, many do not. The importance of communication, doctor-patient relationship, empathy and psychological sensitivity in the making of a physician started getting identified in advanced medical universities in western countries by the middle of the last century. Since then behavioral science and medical humanities have been incorporated as important modules in the graduate medical training curriculum not only in advanced western medical universities, but also in good universities elsewhere. The situation in India, till now has been quite unsatisfactory. The undergraduate medical students had only 2 weeks of clinical posting and few hours of lectures, allotted for psychiatry: Even these were not actually carried out in many institutions properly. Responding to repeated representations from mental health experts in the country and abroad, medical universities and educationists, the Medical Council of India in 2012 has made 2 weeks of Residential Internship in Psychiatry (CRRI mandatory, and also recommended incorporation of medical humanities in the MBBS curriculum. The paper presents a brief outline of how a Clinical Behavioral Sciences Training Program l incorporating medical humanities can be developed and carried out as a mainstream component for the undergraduate medical training in the country. The

  5. Production Facility Prototype Blower 1000 Hour Test Results

    Energy Technology Data Exchange (ETDEWEB)

    Woloshun, Keith Albert [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Dale, Gregory E. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Romero, Frank Patrick [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Dalmas, Dale Allen [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-10-18

    The roots blower in use at ANL for in-beam experiments and also at LANL for flow tests was sized for 12 mm diameter disks and significantly less beam heating. Currently, the disks are 29 mm in diameter, with a 12 mm FWHM Gaussian beam spot at 42 MeV and 2.86 μA on each side of the target, 5.72 μA total. The target design itself is reported elsewhere. With the increased beam heating, the helium flow requirement increased so that a larger blower was needed for a mass flow rate of 400 g/s at 2.76 MPa (400 psig). An Aerzen GM 12.4 blower was selected, and is now installed at the LANL facility for target and component flow testing. Two extended tests of >1000 hr operation have been completed. Those results and discussion thereof are reported herein. Also included in Appendix A is the detailed description of the blower and its installation, while Appendix B documents the pressure vessel design analysis. The blower has been operated for 1000 hours as a preliminary investigation of long-term performance, operation and possible maintenance issues. The blower performed well, with no significant change in blower head or mass flow rate developed under the operating conditions. Upon inspection, some oil had leaked out of the shaft seal of the blower. The shaft seal and bearing race have been replaced. Test results and conclusions are in Appendix B.

  6. Inflight Exercise Regimen for the 2-Hour Prebreathe Protocol

    Science.gov (United States)

    Foster, Philip P.; Gernhardt, Michael L.; Woodruff, Kristin K.; Schneider, Susan M.; Homick, Jerry L. (Technical Monitor)

    2000-01-01

    A 10 min aerobic prebreathe exercise up to 75% V-O2(sub max) on a dual-cycle ergometer, included in the 2-hour prebreathe protocol, has been shown to dramatically reduce the incidence of decompression sickness (DCS) at altitude. In-flight only leg ergometry will be available. A balanced exercise was developed using surgical tubing with the ergometer on-orbit. We hypothesize that a 75% V02max workload, individually prescribed, would be achieved using a target heart rate to regulate the intensity of the arm exercise. VO2, heart rate (HR) / ECG, V-CO2 /V-O2, V(sub E), and V(sub T), and rate of perceived exertion (Borg scale) were measured in eleven healthy subjects who passed a US Air Force Class III Physical examination. A V-O2 peak test was performed to assess the sub-maximal exercise prescription. Two series of sub-maximal tests were performed: (1) leg ergometer/hand ergometer and (2) leg ergometer/surgical tubes. We found no significant differences (P > 0.05) in comparing the means for V-O2 and HR between the predicted and measured values during the final 4 minute-stage at "75% V-O2 workload" or between the two types of sub-maximal tests. The prescribed prebreathe sub-maximal exercise performed with flight certified surgical tubes was achieved using the target HR.

  7. Perceived impact of the 80-hour workweek: five years later.

    Science.gov (United States)

    Dozois, Eric J; Holubar, Stefan D; Tsikitis, Vassiliki L; Malireddy, Kishore; Cima, Robert R; Farley, David R; Larson, David W

    2009-09-01

    We aimed to assess perceptions of the effects of the 80-hour workweek (80hWW) restriction on patient care, education, and resident quality of life. In April 2007, attending surgeons and residents in nine surgical specialties at our institution were surveyed. Respondents were categorized into three groups: (1) attending surgeons; (2) residents beginning their training before the 80hWW implementation (ResBefore); and (3) residents beginning training after the 80hWW implementation (ResAfter). Differences between groups were assessed with univariate analysis. The overall response rate was 57%. A minority in all three groups ( or =84%) agreed that midlevel providers were now critical to successfully deliver health care (P = 0.40). Fewer attending surgeons (21%) and ResBefore (29%) perceived improvements in education compared with ResAfter (68%; P work-life balance for residents (attending surgeons [85%], ResBefore [71%], and ResAfter [92%]; P = 0.008), but 76% of attending surgeons reported decreased job satisfaction. We showed a discrepancy between perceptions of attending surgeons and residents regarding the effect of the 80hWW on patient care and surgical education. Quality of life was improved for residents but not for attending surgeons. The impact of the 80hWW on patient care and surgical education needs to be quantified.

  8. Analyzing a 35-Year Hourly Data Record: Why So Difficult?

    Science.gov (United States)

    Lynnes, Chris

    2014-01-01

    At the Goddard Distributed Active Archive Center, we have recently added a 35-Year record of output data from the North American Land Assimilation System (NLDAS) to the Giovanni web-based analysis and visualization tool. Giovanni (Geospatial Interactive Online Visualization ANd aNalysis Infrastructure) offers a variety of data summarization and visualization to users that operate at the data center, obviating the need for users to download and read the data themselves for exploratory data analysis. However, the NLDAS data has proven surprisingly resistant to application of the summarization algorithms. Algorithms that were perfectly happy analyzing 15 years of daily satellite data encountered limitations both at the algorithm and system level for 35 years of hourly data. Failures arose, sometimes unexpectedly, from command line overflows, memory overflows, internal buffer overflows, and time-outs, among others. These serve as an early warning sign for the problems likely to be encountered by the general user community as they try to scale up to Big Data analytics. Indeed, it is likely that more users will seek to perform remote web-based analysis precisely to avoid the issues, or the need to reprogram around them. We will discuss approaches to mitigating the limitations and the implications for data systems serving the user communities that try to scale up their current techniques to analyze Big Data.

  9. [Causes of 72-hour return visits to hospital emergency departments].

    Science.gov (United States)

    Jiménez-Puente, Alberto; Del Río-Mata, José; Arjona-Huertas, José Luis; Mora-Ordóñez, Begoña; Nieto-de Haro, Lourdes; Lara-Blanquer, Antonio; Martínez-Reina, Alfonso; Martínez Del Campo, Miguel

    2015-10-01

    The return-visit rate has been suggested as a measure of emergency department quality of care. We aimed to identify the reasons for emergency revisits and the percentage of returns related to problems with quality of care in the previous visit. Cross-sectional observational study of clinical records for a random sample of unscheduled returns within 72 hours of discharge from the emergency departments of 3 hospitals attending a population of nearly 3 million in the Spanish province of Malaga. The records were reviewed by 2 data collectors, who assigned a reason for revisits according to a standardized classification. A sample of 1075 emergency revisits were reviewed; 895 met the inclusion criteria. The most common reasons for revisits were the persistence or progression of disease (48.8%), an unrelated new problem (9.3%), and referral from a hospital that did not have the required specialized service (8.6%). Reasons attributable to the patient accounted for 14.5% of the revisits; 15.2% were attributable to health care staff errors, 9.2% to system organization, and 61.1% to the disease process. Most emergency department revisits are related to the progression of the disease that led to the first visit. Only a small percentage can be linked to diagnostic or treatment errors in the previous visit.

  10. Improvements in PIXE analysis of hourly particulate matter samples

    Energy Technology Data Exchange (ETDEWEB)

    Calzolai, G., E-mail: calzolai@fi.infn.it [Department of Physics and Astronomy, University of Florence, Via G. Sansone 1, 50019 Sesto Fiorentino (Italy); National Institute of Nuclear Physics (INFN), Division of Florence, Via G. Sansone 1, 50019 Sesto Fiorentino (Italy); Lucarelli, F. [Department of Physics and Astronomy, University of Florence, Via G. Sansone 1, 50019 Sesto Fiorentino (Italy); National Institute of Nuclear Physics (INFN), Division of Florence, Via G. Sansone 1, 50019 Sesto Fiorentino (Italy); Chiari, M.; Nava, S. [National Institute of Nuclear Physics (INFN), Division of Florence, Via G. Sansone 1, 50019 Sesto Fiorentino (Italy); Giannoni, M. [National Institute of Nuclear Physics (INFN), Division of Florence, Via G. Sansone 1, 50019 Sesto Fiorentino (Italy); Department of Chemistry, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (Italy); Carraresi, L. [Department of Physics and Astronomy, University of Florence, Via G. Sansone 1, 50019 Sesto Fiorentino (Italy); National Institute of Nuclear Physics (INFN), Division of Florence, Via G. Sansone 1, 50019 Sesto Fiorentino (Italy); Prati, P. [Department of Physics, University of Genoa and INFN Division of Genoa, Via Dodecaneso 33, 16146 Genoa (Italy); Vecchi, R. [Department of Physics, Università degli Studi di Milano and INFN Division of Milan, Via Celoria 16, 20133 Milan (Italy)

    2015-11-15

    Most air quality studies on particulate matter (PM) are based on 24-h averaged data; however, many PM emissions as well as their atmospheric dilution processes change within a few hours. Samplings of PM with 1-h resolution can be performed by the streaker sampler (PIXE International Corporation), which is designed to separate the fine (aerodynamic diameter less than 2.5 μm) and the coarse (aerodynamic diameter between 2.5 and 10 μm) fractions of PM. These samples are efficiently analyzed by Particle Induced X-ray Emission (PIXE) at the LABEC laboratory of INFN in Florence (Italy), equipped with a 3 MV Tandetron accelerator, thanks to an optimized external-beam set-up, a convenient choice of the beam energy and suitable collecting substrates. A detailed description of the adopted set-up and results from a methodological study on the detection limits for the selection of the optimal beam energy are shown; the outcomes of the research on alternative collecting substrates, which produce a lower background during the measurements, and with lower contaminations, are also discussed.

  11. Treatment and outcomes of an Australian cohort of outpatients with bipolar I or schizoaffective disorder over twenty-four months: implications for clinical practice

    Directory of Open Access Journals (Sweden)

    Kulkarni Jayashri

    2012-12-01

    Full Text Available Abstract Background The Bipolar Comprehensive Outcomes Study (BCOS is a 2-year, prospective, non-interventional, observational study designed to explore the clinical and functional outcomes associated with ‘real-world’ treatment of participants with bipolar I or schizoaffective disorder. All participants received treatment as usual. There was no study medication. Methods Participants prescribed either conventional mood stabilizers (CMS; n = 155 alone, or olanzapine with, or without, CMS (olanzapine ± CMS; n = 84 were assessed every 3 months using several measures, including the Young Mania Rating Scale, 21-item Hamilton Depression Rating Scale, Clinical Global Impressions Scale – Bipolar Version, and the EuroQol Instrument. This paper reports 24-month longitudinal clinical, pharmacological, functional, and socioeconomic data. Results On average, participants were 42 (range 18 to 79 years of age, 58%; were female, and 73%; had a diagnosis of bipolar I. Polypharmacy was the usual approach to pharmacological treatment; participants took a median of 5 different psychotropic medications over the course of the study, and spent a median proportion of time of 100%; of the study on mood stabilizers, 90%; on antipsychotics, 9%; on antidepressants, and 5%; on benzodiazepines/hypnotics. By 24 months, the majority of participants had achieved both symptomatic and syndromal remission of both mania and depression. Symptomatic relapse rates were similar for both the CMS alone (65%; and the olanzapine ± CMS (61%; cohorts. Conclusions Participants with bipolar I or schizoaffective disorder in this study were receiving complex medication treatments that were often discordant with recommendations made in contemporary major treatment guidelines. The majority of study participants demonstrated some clinical and functional improvements, but not all achieved remission of symptoms or syndrome.

  12. Moderate to severe injuries in football: a one-year prospective study of twenty-four female and male amateur teams.

    Science.gov (United States)

    Lion, Alexis; Theisen, Daniel; Windal, Thierry; Malisoux, Laurent; Nührenbörger, Christian; Huberty, Robert; Urhausen, Axel; Seil, Romain

    2014-01-01

    This study aimed to realize a prospective follow-up of the injuries occurring in female and male football players involved in the highest league in the Grand-Duchy of Luxembourg. Data concerning anthropometric characteristics and football activities were gathered in 125 female and 243 male football players via questionnaires at the beginning of the study. Then, a follow-up of moderate to severe injuries (> 15 days of interruption in football practice) was performed throughout the season 2013-2014. Sixteen injuries (injury incidence = 0.7 injuries/1000 h of exposure) were observed in 13 female football players (10.4%). These injuries concerned mainly the knee (n = 7; 43.7%), with capsules and ligaments being the most often concerned tissues (n = 7; 43.7%). In male football players, 41 severe injuries (injury incidence = 0.6 injuries/1000 h of exposure) were observed in 36 players (14.8%). These injuries concerned mainly the thighs (n = 12; 29.3%) and the muscles and tendons were the most often concerned tissues (n = 18; 43.9%). Injuries in football are predominantly located at the lower limbs, particularly the knees in female football players. The predominant muscle and tendon lesions of the thighs occurring in males could reveal that physical preparation is insufficient or inadequate for a number of players. Regarding these results, it is necessary to implement an injury prevention strategy. The "FIFA 11+" programme could be used as the basic method, but should be personalized according to sex. The injury collection methodology could be optimized with the use of an electronic database, such as the Training and Injury Prevention Platform for Sports (TIPPS). Beside the systematic recording of injury data (as well as the training load) by the players or the medical staff, this system allows to share of important information between stakeholders, follow-up the players, provide risk factor warnings and increase the awareness of the injury problem.

  13. A comparison of intimate partner homicide to intimate partner homicide-suicide: one hundred and twenty-four New Mexico cases.

    Science.gov (United States)

    Banks, Laura; Crandall, Cameron; Sklar, David; Bauer, Michael

    2008-09-01

    The authors compare cases of female intimate partner homicide-suicide to female intimate partner homicide alone to describe risk factors and suggest prevention strategies, including strategies in the medical setting. Differences are found between the types of cases in marital relationship, age, blood alcohol, and the use of firearms. Physicians and other health care providers who treat victims of intimate partner violence and patients at risk for suicide should be aware of the interwoven risk factors within these populations. Interventions aimed at suicide prevention as well as targeted removal of firearms should be investigated as tools in the prevention of intimate partner homicide.

  14. Is there a statistical relationship between economic crises and changes in government health expenditure growth? an analysis of twenty-four European countries.

    Science.gov (United States)

    Cylus, Jonathan; Mladovsky, Philipa; McKee, Martin

    2012-12-01

    To identify whether, by what means, and the extent to which historically, government health care expenditure growth in Europe has changed following economic crises. Organization for Economic Cooperation and Development Health Data 2011. Cross-country fixed effects multiple regression analysis is used to determine whether statutory health care expenditure growth in the year after economic crises differs from that which would otherwise be predicted by general economic trends. Better understanding of the mechanisms involved is achieved by distinguishing between policy responses which lead to cost-shifting and all others. In the year after an economic downturn, public health care expenditure grows more slowly than would have been expected given the longer term economic climate. Cost-shifting and other policy responses are both associated with these slowdowns. However, while changes in tax-derived expenditure are associated with both cost-shifting and other policy responses following a crisis, changes in expenditure derived from social insurance have been associated only with changes in cost-shifting. Disproportionate cuts to the health sector, as well as reliance on cost-shifting to slow growth in health care expenditure, serve as a warning in terms of potentially negative effects on equity, efficiency, and quality of health services and, potentially, health outcomes following economic crises. © Health Research and Educational Trust.

  15. Twenty-four new species of Aleiodes Wesmael from the eastern Andes of Ecuador with associated biological information (Hymenoptera, Braconidae, Rogadinae).

    Science.gov (United States)

    Shimbori, Eduardo Mitio; Shaw, Scott Richard

    2014-01-01

    Aleiodes Wesmael is the most diverse rogadine genus worldwide, with specialized koinobiont endoparasitic development in Lepidoptera caterpillars resulting in mummification of the host remains. This paper focuses on describing new Aleiodes species from the Yanayacu Biological Station, with special interest in those with biological information. We describe 24 new species (Aleiodes albidactyl sp. n., Aleiodes albigena sp. n., Aleiodes albiviria sp. n., Aleiodes bimaculatus sp. n., Aleiodes cacuangoi sp. n., Aleiodes colberti sp. n., Aleiodes delicatus sp. n., Aleiodes dyeri sp. n., Aleiodes elleni sp. n., Aleiodes falloni sp. n., Aleiodes frosti sp. n., Aleiodes kingmani sp. n., Aleiodes longikeros sp. n., Aleiodes luteosicarius sp. n., Aleiodes marilynae sp. n., Aleiodes mirandae sp. n., Aleiodes napo sp. n., Aleiodes nubicola sp. n., Aleiodes onyx sp. n., Aleiodes shakirae sp. n., Aleiodes stewarti sp. n., Aleiodes townsendi sp. n., Aleiodes tzantza sp. n., and Aleiodes yanayacu sp. n.) from Napo Province in Ecuador, 16 of which were reared from host caterpillars. With these results 89 species of Neotropical Aleiodes are now known, with 41 of them having host records. The most commonly reared species were in the circumscriptus/gastritor species-group, and mostly associated with Geometridae hosts (six of ten species). Three species of seriatus species-group, in contrast, were each reared from a different family. One of these species (i.e. A. frosti sp. n.), reared from Notodontidae, cuts a posterior radial opening in the mummy for emergence, a unique behavior in Aleiodes, recorded here for the first time. A. luteosicarius sp. n. is the first described species from Ecuador in the pallidator species-group. Differing from previously described pallidator species, which attack only Lymantriinae larvae, A. luteosicarius sp. n. attacks several species of Arctiinae larvae, being both subfamilies within Erebidae with densely setose caterpillars. We also describe new species of the gressitti and pulchripes species-groups.

  16. Twenty-four-week effects of liraglutide on body composition, adherence to appetite, and lipid profile in overweight and obese patients with type 2 diabetes mellitus

    Directory of Open Access Journals (Sweden)

    Rondanelli M

    2016-03-01

    Full Text Available Mariangela Rondanelli,1 Simone Perna,1 Paolo Astrone,2 Annalisa Grugnetti,2 Sebastiano Bruno Solerte,2 Davide Guido3,4 1Endocrinology and Nutrition Unit, Section of Human Nutrition, Department of Public Health, Experimental and Forensic Medicine, Agency for Elderly People Services, Santa Margherita Hospital, University of Pavia, Pavia, Italy; 2Section of Geriatrics and Gerontology, Department of Internal Medicine, Agency for Elderly People Services, Santa Margherita Hospital, University of Pavia, Pavia, Italy; 3Medical and Genomics Statistics Unit, Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy; 4Biostatistics and Clinical Epidemiology Unit, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy Background: Liraglutide has well-known effects on glucose patterns. However, its several other metabolic properties are still controversial. Given this background, the aims of the present study are to evaluate the effects of 24-week liraglutide treatment on body composition, appetite, and lipid profile in overweight and obese type 2 diabetes mellitus (T2DM patients. Methods: A cohort study was carried out on overweight and obese T2DM patients with glycosylated hemoglobin A1c equal to 6% (42 mmol/mol-10% (86 mmol/mol, under a 3-month treatment (at least with maximal dose of metformin as stable regime, by adding liraglutide at doses up to 3 mg/d. Body composition markers were measured by dual-energy X-ray densitometry at baseline and after 24 weeks of liraglutide treatment. Glucose control was monitored by glucose, glycosylated hemoglobin A1c, insulin, and homeostasis model assessment. Finally, the appetite sensation and plasma lipids were also evaluated. Results: Twenty-eight subjects (male/female: 16/12, mean age: 58.75±9.33 years, body mass index: 34.13±5.46 kg/m2 were evaluated. Accounting for the adjustment for age, sex, and duration of diabetes, we noted significant decreases in body mass index (-0.86 kg/m2, P=0.024, fat mass (-2.01 kg, P=0.015, fat mass index (-0.71 kg/m2, P=0.014, android fat (-1.72%, P=0.022, trunk fat (-1.52%, P=0.016, and waist circumference (-6.86 cm, P<0.001 from the baseline values. Haber score was increased by 3.82 units (P=0.009, and the number of metabolic syndrome risk factors was decreased (-0.69 units, P=0.012. The glucose control variables and total cholesterol/high-density lipoprotein cholesterol ratio also showed significant decreases from baseline values. Conclusion: The 24-week liraglutide treatment leads to the reduction of fat mass, android fat, trunk fat, and appetite by improving the lipid profile, glucose control, and insulin sensitivity. Keywords: liraglutide, weight loss, body composition, fat mass, type 2 diabetes mellitus, appetite

  17. High-resolution grids of hourly meteorological variables for Germany

    Science.gov (United States)

    Krähenmann, S.; Walter, A.; Brienen, S.; Imbery, F.; Matzarakis, A.

    2018-02-01

    We present a 1-km2 gridded German dataset of hourly surface climate variables covering the period 1995 to 2012. The dataset comprises 12 variables including temperature, dew point, cloud cover, wind speed and direction, global and direct shortwave radiation, down- and up-welling longwave radiation, sea level pressure, relative humidity and vapour pressure. This dataset was constructed statistically from station data, satellite observations and model data. It is outstanding in terms of spatial and temporal resolution and in the number of climate variables. For each variable, we employed the most suitable gridding method and combined the best of several information sources, including station records, satellite-derived data and data from a regional climate model. A module to estimate urban heat island intensity was integrated for air and dew point temperature. Owing to the low density of available synop stations, the gridded dataset does not capture all variations that may occur at a resolution of 1 km2. This applies to areas of complex terrain (all the variables), and in particular to wind speed and the radiation parameters. To achieve maximum precision, we used all observational information when it was available. This, however, leads to inhomogeneities in station network density and affects the long-term consistency of the dataset. A first climate analysis for Germany was conducted. The Rhine River Valley, for example, exhibited more than 100 summer days in 2003, whereas in 1996, the number was low everywhere in Germany. The dataset is useful for applications in various climate-related studies, hazard management and for solar or wind energy applications and it is available via doi: 10.5676/DWD_CDC/TRY_Basis_v001.

  18. 24-Hour Urine Phosphorus Excretion and Mortality and Cardiovascular Events

    Science.gov (United States)

    Palomino, Heather L.; Rifkin, Dena E.; Anderson, Cheryl; Criqui, Michael H.; Whooley, Mary A.

    2013-01-01

    Summary Background and objectives Higher morning serum phosphorus has been associated with cardiovascular disease (CVD) in patients with or without CKD. In patients with CKD and a phosphorous level >4.6 mg/dl, the Kidney Disease Improving Global Outcomes guidelines recommend dietary phosphorus restriction. However, whether phosphorus restriction influences serum phosphorus concentrations and whether dietary phosphorus is itself associated with CVD or death are uncertain. Design, setting, participants, & measurements Among 880 patients with stable CVD and normal kidney function to moderate CKD, 24-hour urine phosphorus excretion (UPE) and serum phosphorus were measured at baseline. Participants were followed for a median of 7.4 years for CVD events and all-cause mortality. Results Mean ± SD age was 67±11 years, estimated GFR (eGFR) was 71±22 ml/min per 1.73 m2, and serum phosphorus was 3.7±0.6 mg/dl. Median UPE was 632 (interquartile range, 439, 853) mg/d. In models adjusted for demographic characteristics and eGFR, UPE was weakly and nonsignificantly associated with serum phosphorus (0.03 mg/dl higher phosphorus per 300 mg higher UPE; P=0.07). When adjusted for demographics, eGFR, and CVD risk factors, each 300-mg higher UPE was associated with 17% lower risk of CVD events. The association of UPE with all-cause mortality was not statistically significant (hazard ratio, 0.93; 95% confidence interval, 0.82 to 1.05). Results were similar irrespective of CKD status (P interactions > 0.87). Conclusions Among outpatients with stable CVD, the magnitude of the association of UPE with morning serum phosphorus is modest. Greater UPE is associated with lower risk for CVD events. The association was similar for all-cause mortality but was not statistically significant. PMID:23539231

  19. Pain during and within hours after exercise in healthy adults.

    Science.gov (United States)

    Dannecker, Erin A; Koltyn, Kelli F

    2014-07-01

    Literature on the pain relieving effects of exercise has been reviewed several times. It is equally important to review the literature on the pain-inducing effects of exercise. Indeed, exercise professionals, health care providers, and exercisers must grapple with the fact that exercise can both induce and reduce pain. The objective of this review was to synthesize our current understanding of exercise-induced pain and inspire advanced research. We searched the PubMed database for publications since 2000 about healthy human participants. Disease-specific reviews of the effects of exercise are available elsewhere. The results of our literature review verified that many different modes, intensities, and durations of exercise can induce pain in healthy people. Another important point is that pain can occur within a few hours after eccentric contractions, which should be considered relative to the construct of delayed-onset muscle soreness. In addition, the studies supported that exercise can be painful in diverse muscle groups. Yet another point illuminated by the literature is that different pain measures do not always change in similar directions and magnitudes after exercise. Therefore, our review confirms that a wide variety of exercises can be painful--even for healthy people. We wonder how many exercise professionals and health care providers regularly and appropriately measure exercise-related pain or consider such pain in their exercise recommendations. We also question if exercise-related pain affects exercise behavior in healthy people as it has been shown to do in people with chronic illnesses. Additional research is needed to improve both exercise recommendations and exercise behavior.

  20. 24-hour urine phosphorus excretion and mortality and cardiovascular events.

    Science.gov (United States)

    Palomino, Heather L; Rifkin, Dena E; Anderson, Cheryl; Criqui, Michael H; Whooley, Mary A; Ix, Joachim H

    2013-07-01

    Higher morning serum phosphorus has been associated with cardiovascular disease (CVD) in patients with or without CKD. In patients with CKD and a phosphorous level >4.6 mg/dl, the Kidney Disease Improving Global Outcomes guidelines recommend dietary phosphorus restriction. However, whether phosphorus restriction influences serum phosphorus concentrations and whether dietary phosphorus is itself associated with CVD or death are uncertain. Among 880 patients with stable CVD and normal kidney function to moderate CKD, 24-hour urine phosphorus excretion (UPE) and serum phosphorus were measured at baseline. Participants were followed for a median of 7.4 years for CVD events and all-cause mortality. Mean ± SD age was 67±11 years, estimated GFR (eGFR) was 71±22 ml/min per 1.73 m(2), and serum phosphorus was 3.7±0.6 mg/dl. Median UPE was 632 (interquartile range, 439, 853) mg/d. In models adjusted for demographic characteristics and eGFR, UPE was weakly and nonsignificantly associated with serum phosphorus (0.03 mg/dl higher phosphorus per 300 mg higher UPE; P=0.07). When adjusted for demographics, eGFR, and CVD risk factors, each 300-mg higher UPE was associated with 17% lower risk of CVD events. The association of UPE with all-cause mortality was not statistically significant (hazard ratio, 0.93; 95% confidence interval, 0.82 to 1.05). Results were similar irrespective of CKD status (P interactions > 0.87). Among outpatients with stable CVD, the magnitude of the association of UPE with morning serum phosphorus is modest. Greater UPE is associated with lower risk for CVD events. The association was similar for all-cause mortality but was not statistically significant.

  1. Comparison of 12-hour urine protein and protein:creatinine ratio with 24-hour urine protein for the diagnosis of preeclampsia.

    Science.gov (United States)

    Tun, Christina; Quiñones, Joanne N; Kurt, Anita; Smulian, John C; Rochon, Meredith

    2012-09-01

    The purpose of this study was to evaluate the performance of the 12-hour urine protein >165 mg and protein:creatinine ratio >0.15 for the prediction of 24-hour urine protein of ≥300 mg in patients with suspected preeclampsia. We performed a prospective observational study of 90 women who had been admitted with suspected preeclampsia. Protein:creatinine ratio and 12- and 24-hour urine specimens were collected for each patient. Test characteristics for the identification of 24-hour urine protein ≥300 mg were calculated. A 12-hour urine protein >165 mg and protein:creatinine ratio of >0.15 correlated significantly with 24-hour urine protein ≥300 mg (r = 0.99; P urine protein >165 mg performed better than protein:creatinine ratio as a predictor of a 24-hour urine protein ≥300 mg (sensitivity, 96% and 89%; specificity, 100% and 49%; positive predictive value, 100% and 32%; negative predictive value, 98% and 91%, respectively). The high correlation of a 12-hour urine protein >165 mg with a 24-hour urine protein ≥300 mg (with the benefit of a shorter evaluation time) and the high negative predictive value of protein:creatinine ratio suggest that the use of both these tests have a role in the evaluation and treatment of women with suspected preeclampsia. Copyright © 2012 Mosby, Inc. All rights reserved.

  2. Taming Technology

    Science.gov (United States)

    Branscomb, Lewis M.

    1971-01-01

    Reviews aspects of technology in our society: technology as a force for social change; reasons for the frustration and dissatisfaction with technology; how technology decentralizes power; the individual's influence; resolving conflicts in the ionized" society; regulation of technology; corporate responsibility; and the potential pitfalls for the…

  3. Achieving Accreditation Council for Graduate Medical Education duty hours compliance within advanced surgical training: a simulation-based feasibility assessment.

    Science.gov (United States)

    Obi, Andrea; Chung, Jennifer; Chen, Ryan; Lin, Wandi; Sun, Siyuan; Pozehl, William; Cohn, Amy M; Daskin, Mark S; Seagull, F Jacob; Reddy, Rishindra M

    2015-11-01

    Certain operative cases occur unpredictably and/or have long operative times, creating a conflict between Accreditation Council for Graduate Medical Education (ACGME) rules and adequate training experience. A ProModel-based simulation was developed based on historical data. Probabilistic distributions of operative time calculated and combined with an ACGME compliant call schedule. For the advanced surgical cases modeled (cardiothoracic transplants), 80-hour violations were 6.07% and the minimum number of days off was violated 22.50%. There was a 36% chance of failure to fulfill any (either heart or lung) minimum case requirement despite adequate volume. The variable nature of emergency cases inevitably leads to work hour violations under ACGME regulations. Unpredictable cases mandate higher operative volume to ensure achievement of adequate caseloads. Publically available simulation technology provides a valuable avenue to identify adequacy of case volumes for trainees in both the elective and emergency setting. Copyright © 2015 Elsevier Inc. All rights reserved.

  4. Forecasting of Hourly Photovoltaic Energy in Canarian Electrical System

    Science.gov (United States)

    Henriquez, D.; Castaño, C.; Nebot, R.; Piernavieja, G.; Rodriguez, A.

    2010-09-01

    The Canarian Archipelago face similar problems as most insular region lacking of endogenous conventional energy resources and not connected to continental electrical grids. A consequence of the "insular fact" is the existence of isolated electrical systems that are very difficult to interconnect due to the considerable sea depths between the islands. Currently, the Canary Islands have six isolated electrical systems, only one utility generating most of the electricity (burning fuel), a recently arrived TSO (REE) and still a low implementation of Renewable Energy Resources (RES). The low level of RES deployment is a consequence of two main facts: the weakness of the stand-alone grids (from 12 MW in El Hierro up to only 1 GW in Gran Canaria) and the lack of space to install RES systems (more than 50% of the land protected due to environmental reasons). To increase the penetration of renewable energy generation, like solar or wind energy, is necessary to develop tools to manage them. The penetration of non manageable sources into weak grids like the Canarian ones causes a big problem to the grid operator. There are currently 104 MW of PV connected to the islands grids (Dec. 2009) and additional 150 MW under licensing. This power presents a serious challenge for the operation and stability of the electrical system. ITC, together with the local TSO (Red Eléctrica de España, REE) started in 2008 and R&D project to develop a PV energy prediction tool for the six Canarian Insular electrical systems. The objective is to supply reliable information for hourly forecast of the generation dispatch programme and to predict daily solar radiation patterns, in order to help program spinning reserves. ITC has approached the task of weather forecasting using different numerical model (MM5 and WRF) in combination with MSG (Meteosat Second Generation) images. From the online data recorded at several monitored PV plants and meteorological stations, PV nominal power and energy produced

  5. Stochastic modeling of hourly rainfall times series in Campania (Italy)

    Science.gov (United States)

    Giorgio, M.; Greco, R.

    2009-04-01

    Occurrence of flowslides and floods in small catchments is uneasy to predict, since it is affected by a number of variables, such as mechanical and hydraulic soil properties, slope morphology, vegetation coverage, rainfall spatial and temporal variability. Consequently, landslide risk assessment procedures and early warning systems still rely on simple empirical models based on correlation between recorded rainfall data and observed landslides and/or river discharges. Effectiveness of such systems could be improved by reliable quantitative rainfall prediction, which can allow gaining larger lead-times. Analysis of on-site recorded rainfall height time series represents the most effective approach for a reliable prediction of local temporal evolution of rainfall. Hydrological time series analysis is a widely studied field in hydrology, often carried out by means of autoregressive models, such as AR, ARMA, ARX, ARMAX (e.g. Salas [1992]). Such models gave the best results when applied to the analysis of autocorrelated hydrological time series, like river flow or level time series. Conversely, they are not able to model the behaviour of intermittent time series, like point rainfall height series usually are, especially when recorded with short sampling time intervals. More useful for this issue are the so-called DRIP (Disaggregated Rectangular Intensity Pulse) and NSRP (Neymann-Scott Rectangular Pulse) model [Heneker et al., 2001; Cowpertwait et al., 2002], usually adopted to generate synthetic point rainfall series. In this paper, the DRIP model approach is adopted, in which the sequence of rain storms and dry intervals constituting the structure of rainfall time series is modeled as an alternating renewal process. Final aim of the study is to provide a useful tool to implement an early warning system for hydrogeological risk management. Model calibration has been carried out with hourly rainfall hieght data provided by the rain gauges of Campania Region civil

  6. Measurement of ampere-hour for small consumers in Brazil: present status and trends; Medicao de ampere-hora para pequenos consumidores no Brasil: estado atual e perspectivas

    Energy Technology Data Exchange (ETDEWEB)

    Alves Junior, J.E.R.; Lippincott, M.; Caldas, R.P.; Costa, R.S. de; Alvarenga, L.M.; Loureiro, M.R.B.; Luiz, F.C. [Centro de Pesquisas de Energia Eletrica, Rio de Janeiro, RJ (Brazil). E-mail: alves@cepel.br; Santos, C.; Araujo, P. [Centrais Eletricas de Pernambuco (CELPE), Recife, PE (Brazil); Pinho, A. [Centrais Eletricas do Para (CELPA), Belem, PA (Brazil); Marcondes, P. [Daruma Telecomunicacoes e Informatica S.A., Sao Paulo, SP (Brazil); Vidal, J.C.M. [APEL Aplicacoes Eletronicas Industria e Comercio Ltda., Campina Grande, PB (Brazil); Peyro, R.J. [Telematica, Sao Paulo, SP (Brazil)

    1999-07-01

    This paper presents a description of the ampere-hour meter developed with the CEPEL technology. This meter aims to the economic optimization of the measurement and invoicing or the small scale consumer electric power consumption. The paper presents the description, the technical and construction characteristics, the invoicing system and the using by the electric power utilities.

  7. Effectiveness of Policies Restricting Hours of Alcohol Sales in Preventing Excessive Alcohol Consumption and Related Harms

    Science.gov (United States)

    Hahn, Robert A.; Kuzara, Jennifer L.; Elder, Randy; Brewer, Robert; Chattopadhyay, Sajal; Fielding, Jonathan; Naimi, Timothy S.; Toomey, Traci; Middleton, Jennifer Cook; Lawrence, Briana

    2013-01-01

    Local, state, and national policies that limit the hours that alcoholic beverages may be available for sale might be a means of reducing excessive alcohol consumption and related harms. The methods of the Guide to Community Preventive Services were used to synthesize scientific evidence on the effectiveness of such policies. All of the studies included in this review assessed the effects of increasing hours of sale in on-premises settings (in which alcoholic beverages are consumed where purchased) in high-income nations. None of the studies was conducted in the U.S. The review team’s initial assessment of this evidence suggested that changes of less than 2 hours were unlikely to significantly affect excessive alcohol consumption and related harms; to explore this hypothesis, studies assessing the effects of changing hours of sale by less than 2 hours and by 2 or more hours were assessed separately. There was sufficient evidence in ten qualifying studies to conclude that increasing hours of sale by 2 or more hours increases alcohol-related harms. Thus, disallowing extensions of hours of alcohol sales by 2 or more should be expected to prevent alcohol-related harms, while policies decreasing hours of sale by 2 hours or more at on-premises alcohol outlets may be an effective strategy for preventing alcohol-related harms. The evidence from six qualifying studies was insufficient to determine whether increasing hours of sale by less than 2 hours increases excessive alcohol consumption and related harms. PMID:21084080

  8. Assistive Technology

    Science.gov (United States)

    ... Page Resize Text Printer Friendly Online Chat Assistive Technology Assistive technology (AT) is any service or tool that helps ... be difficult or impossible. For older adults, such technology may be a walker to improve mobility or ...

  9. Sport Technology

    CSIR Research Space (South Africa)

    Kirkbride, T

    2007-11-01

    Full Text Available Technology is transforming the games themselves and at times with dire consequences. Tony Kirkbride, Head: CSIR Technology Centre said there are a variety of sports technologies and there have been advances in material sciences and advances...

  10. Rover Technologies

    Data.gov (United States)

    National Aeronautics and Space Administration — Develop and mature rover technologies supporting robotic exploration including rover design, controlling rovers over time delay and for exploring . Technology...

  11. Nano technology

    International Nuclear Information System (INIS)

    Lee, In Sik

    2002-03-01

    This book is introduction of nano technology, which describes what nano technology is, alpha and omega of nano technology, the future of Korean nano technology and human being's future and nano technology. The contents of this book are nano period is coming, a engine of creation, what is molecular engineering, a huge nano technology, technique on making small things, nano materials with exorbitant possibility, the key of nano world the most desirable nano technology in bio industry, nano development plan of government, the direction of development for nano technology and children of heart.

  12. CMAQv5.1 Base NEIv1 AQS hourly site compare files

    Data.gov (United States)

    U.S. Environmental Protection Agency — CMAQv5.1 Base NEIv1 AQS hourly sitex files containing hourly paired model/ob data for the AQS network. This dataset is associated with the following publication:...

  13. CMAQv5.1 with new dust AQS Hourly site compare files

    Data.gov (United States)

    U.S. Environmental Protection Agency — CMAQv5.1 with a new dust module AQS Hourly sitex files containing hourly paired model/ob data for the AQS network. This dataset is associated with the following...

  14. 47 CFR 80.705 - Hours of service of Alaska-public fixed stations.

    Science.gov (United States)

    2010-10-01

    ... SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Alaska Fixed Stations § 80.705 Hours of service of Alaska-public fixed stations. Each Alaska-public fixed station whose hours of service are not... 47 Telecommunication 5 2010-10-01 2010-10-01 false Hours of service of Alaska-public fixed...

  15. Off hour admission to an intensivist-led ICU is not associated with increased mortality

    NARCIS (Netherlands)

    Meynaar, I.A.; van der Spoel, J.I.; Rommes, J.H.; van Spreuwel-Verheijen, M.; Bosman, R.J.; Spronk, P.E.

    2009-01-01

    Introduction Caring for the critically ill is a 24-hour-a-day responsibility, but not all resources and staff are available during off hours. We evaluated whether intensive care unit (ICU) admission during off hours affects hospital mortality. Methods This retrospective multicentre cohort study was

  16. The prevalence of postoperative pain in the first 48 hours following ...

    African Journals Online (AJOL)

    The prevalence of postoperative pain in the first 48 hours following day surgery at a tertiary hospital in Nairobi. ... African Health Sciences ... Results: The prevalence of postoperative pain after day care surgery was found to be 58% within 30minutes postoperatively, 55.3% after 24 hours, and 34.7% after 48 hours following ...

  17. Flexible Work Hours and Other Job Factors in Parental Time with Children

    Science.gov (United States)

    Baxter, Jennifer

    2011-01-01

    Flexible working hours are typically seen to be advantageous to working parents, as the flexible hours more easily allow responsibilities of care and employment be balanced. But do flexible work hours actually mean that parents can spend more time with their children? This article explores this for parents of young children in Australia. The…

  18. 78 FR 76392 - Hours of Service of Drivers: Application for Exemption; David Muresan

    Science.gov (United States)

    2013-12-17

    ... driver can reset this ``on-duty clock'' to zero by obtaining a period of at least 34-consecutive hours...-0047] Hours of Service of Drivers: Application for Exemption; David Muresan AGENCY: Federal Motor... comments. SUMMARY: FMCSA announces that David Muresan has applied for an exemption from the Agency's hours...

  19. Engaging in Office Hours: A Study of Student-Faculty Interaction and Academic Performance

    Science.gov (United States)

    Guerrero, Mario; Rod, Alisa Beth

    2013-01-01

    Both students and instructors have somewhat negative perceptions of office hours. Students fail to attend office hours on a regular basis for substantive and intrinsic reasons. Instructors are often discouraged with low attendance in office hours and consequently may fail to invest a significant amount of time in reaching out to students. This…

  20. 5 CFR 531.607 - Computing hourly, daily, weekly, and biweekly locality rates.

    Science.gov (United States)

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Computing hourly, daily, weekly, and... Computing hourly, daily, weekly, and biweekly locality rates. (a) Apply the following methods to convert an... firefighter whose pay is computed under 5 U.S.C. 5545b, a firefighter hourly locality rate is computed using a...

  1. Information Technology

    Science.gov (United States)

    2003-01-01

    The first wave delivered a range of services to most areas of the world through a vast, carefully constructed global network. Cellular technology ...Information Technology and Services Alliance. Digital Planet 2002: The Global Information Economy. February 2002. Yegyazarian, Anush. Sales Taxes...Information Technology ABSTRACT: The information technology (IT) industry affects virtually every industry in the n economy. During the late 90

  2. Contaminated concrete: Occurrence and emerging technologies for DOE decontamination

    Energy Technology Data Exchange (ETDEWEB)

    Dickerson, K.S.; Wilson-Nichols, M.J. [Oak Ridge National Lab., Grand Junction, CO (United States); Morris, M.I. [Oak Ridge National Lab., TN (United States)

    1995-08-01

    The goals of the Facility Deactivation, Decommissioning, and Material Disposition Focus Area, sponsored by the US Department of Energy (DOE) Office of Technology Development, are to select, demonstrate, test, and evaluate an integrated set of technologies tailored to provide a complete solution to specific problems posed by deactivation, decontamination, and decommissioning, (D&D). In response to these goals, technical task plan (TTP) OR152002, entitled Accelerated Testing of Concrete Decontamination Methods, was submitted by Oak Ridge National Laboratory. This report describes the results from the initial project tasks, which focused on the nature and extent of contaminated concrete, emerging candidate technologies, and matching of emerging technologies to concrete problems. Existing information was used to describe the nature and extent of contamination (technology logic diagrams, data bases, and the open literature). To supplement this information, personnel at various DOE sites were interviewed, providing a broad perspective of concrete contamination. Because characterization is in the initial stage at many sites, complete information is not available. Assimilation of available information into one location is helpful in identifying potential areas of concern in the future. The most frequently occurring radiological contaminants within the DOE complex are {sup 137}Cs, {sup 238}U (and it daughters), and {sup 60}Co, followed closely by {sup 90}Sr and tritium, which account for {minus}30% of the total occurrence. Twenty-four percent of the contaminants were listed as unknown, indicating a lack of characterization information, and 24% were listed as other contaminants (over 100 isotopes) with less than 1% occurrence per isotope.

  3. Electronic technology

    International Nuclear Information System (INIS)

    Kim, Jin Su

    2010-07-01

    This book is composed of five chapters, which introduces electronic technology about understanding of electronic, electronic component, radio, electronic application, communication technology, semiconductor on its basic, free electron and hole, intrinsic semiconductor and semiconductor element, Diode such as PN junction diode, characteristic of junction diode, rectifier circuit and smoothing circuit, transistor on structure of transistor, characteristic of transistor and common emitter circuit, electronic application about electronic equipment, communication technology and education, robot technology and high electronic technology.

  4. CASING DRILLING TECHNOLOGY

    Directory of Open Access Journals (Sweden)

    Nediljka Gaurina-Međimurec

    2005-12-01

    Full Text Available Casing drilling is an alternative option to conventional drilling and uses standard oilfield casing instead of drillstring. This technology is one of the greatest developments in drilling operations. Casing drilling involves drilling and casing a well simultaneously. In casing driling process, downhole tools can be retrieved, through the casing on wire-line, meaning tool recovery or replacement of tools can take minutes versus hours under conventional methods. This process employs wireline-retrievable tools and a drill-lock assembly, permitting bit and BHA changes, coring, electrical logging and even directional or horizontal drilling. Once the casing point is reached, the casing is cemented in place without tripping pipe.

  5. Reuse and Securing of Mining Waste : Need of the hour

    Science.gov (United States)

    Mehta, Neha; Dino, Giovanna; Ajmone-Marsan, Franco; De Luca, Domenico Antonio

    2016-04-01

    With recent advancements in technology and rising standards of living the demand for minerals has increased drastically. Increased reliance on mining industry has led to unmanageable challenges of Mining waste generated out of Mining and Quarrying activities. According to Statistics from EuroStat Mining and Quarrying generated 734 million Tons in Europe in 2012 which accounted for 29.19 % of the total waste, becoming second most important sector in terms of waste generation after Construction Industry. Mining waste can be voluminous and/ or chemically active and can cause environmental threats like groundwater pollution due to leaching of pollutants, surface water pollution due to runoffs during rainy season, river and ocean pollution due to intentional dumping of tailings by mining companies. Most of the big mining companies have not adopted policies against dumping of tailings in rivers and oceans. Deep Sea Tailings Placement (DSTP) is creating havoc in remote and pristine environment of deep-sea beds e.g. Bismarck Sea. Furthermore, mining waste is contaminating soil in nearby areas by disturbing soil microbial activity and other physio-chemical and biological properties of soil (e.g. Barruecopardo village - Spain). Mining waste stored in heaps and dams has led to many accidents and on an average, worldwide, there is one major accident in a year involving tailings dams (e.g. Myanmar, Brazil, 2015). Pollution due to tailings is causing local residents to relocate and become 'ecological migrants'. The above issues linked to mining waste makes reuse and securing of mining waste one of the urgent challenge to deal with. The studies done previously on mining show that most of the researches linked with mining waste reuse and securing are very site specific. For instance, the type of recovery method should not only provide environmental clean-up but also economic benefits to promise sustainability of the method. Environmental risk assessment of using mining waste as

  6. A Comparison of 4- and 24-Hour Urine Samples for the Diagnosis of Proteinuria in Pregnancy

    Directory of Open Access Journals (Sweden)

    Afsane Amirabi

    2011-09-01

    Full Text Available Background: Preeclampsia is a serious complication of pregnancy, and it is vital to diagnosis the condition as early as possible. Proteinuria is an important symptom of preeclampsia, and repeated urine analysis to screen for the condition is part of the standard antenatal care. The purpose of this study was to determine the correlation between 4- and 24-hour urine total protein values to examine whether the 4-hour urine samples could be used for the diagnosis of proteinuria in hypertensive disorders of pregnancy. Methods: A cross-sectional study was performed on 110 pregnant (after gestational week 20 of pregnancy patients who were hypertensive (blood pressure ≥140/90 mmHg and had proteinuria as defined by positive urinary protein of at least 1+ in dipstick. Patients' urine samples were collected over 24 hours; the first 4 hours were collected separately from the next 20-hours. Patients, who did not collect the 24-hour urine, were excluded from the study. One hundred patients met the criteria, and were included in the study. The urine volume, total protein and creatinine levels of 4- and 24-hours samples were measured. The correlation between 4-hour and 24-hour samples was examined using Pearson correlation test. Results: Of the 100 patients, 42 had no proteinuria, 44 had mild proteinuria, and 14 had severe proteinuria. The urine protein values of 4-hour samples correlated with those of the 24-hours samples for patients with mild and severe forms of the disease (P<0.001, r=0.86. Conclusion: This study showed there was a correlation between 4-hour and 24-hour urine proteins. The finding indicates that a random 4-hour sample might be used for the initial assessment of proteinuria

  7. Long working hours and pregnancy complications: women physicians survey in Japan.

    Science.gov (United States)

    Takeuchi, Masumi; Rahman, Mahbubur; Ishiguro, Aya; Nomura, Kyoko

    2014-07-23

    Previous studies have investigated the impact of occupational risk factors on health outcomes among physicians. However, few studies have investigated the effects on pregnancy outcomes among physicians. In this study, we examined the association between working hours during pregnancy and pregnancy complications among physicians. A cross-sectional study was based on a survey conducted in 2009-2011 of 1,684 alumnae (mean age, 44 ± 8 years) who had graduated from 13 private medical schools in Japan. Data on threatened abortion (TA), preterm birth (PTB), and the number of working hours during the first trimester of pregnancy were obtained via retrospective assessments. Of the 939 physicians with a first pregnancy, 15% experienced TA and 12% experienced PTB. Women who experienced TA (mean weekly working hours: 62 h vs. 50 h, P women who worked 40 hours or less per week, women who worked 71 hours or more per week had a three-fold higher risk of experiencing TA (95% confidence interval (CI): 1.7-6.0) even after adjusting for medical specialty, maternal age, and current household income. The risk of experiencing PTB was 2.5 times higher (95% CI:1.2-5.2) in women who worked 51-70 hours and 4.2 times higher (95% CI: 1.9-9.2) in women who worked 71 hours or more even after adjusting for specialty, maternal age, and current household income. The trend in the P statistic reflecting the effect of the quartile of hours worked per week (40 hours, 41-50 hours, 51-70 hours, ≥ 71 hours) on TA or PTB was 0.0001 in the multivariate logistic regression models. These results suggest that working long hours during the first trimester of pregnancy is associated with TA and PTB.

  8. Globalization & technology

    DEFF Research Database (Denmark)

    Narula, Rajneesh

    Technology and globalization are interdependent processes. Globalization has a fundamental influence on the creation and diffusion of technology, which, in turn, affects the interdependence of firms and locations. This volume examines the international aspect of this interdependence at two levels...

  9. Living Technology

    DEFF Research Database (Denmark)

    2010-01-01

    This book is aimed at anyone who is interested in learning more about living technology, whether coming from business, the government, policy centers, academia, or anywhere else. Its purpose is to help people to learn what living technology is, what it might develop into, and how it might impact...... our lives. The phrase 'living technology' was coined to refer to technology that is alive as well as technology that is useful because it shares the fundamental properties of living systems. In particular, the invention of this phrase was called for to describe the trend of our technology becoming...... increasingly life-like or literally alive. Still, the phrase has different interpretations depending on how one views what life is. This book presents nineteen perspectives on living technology. Taken together, the interviews convey the collective wisdom on living technology's power and promise, as well as its...

  10. Residents’ perception of duty hour limits through teaching hospital accreditation status—experience in Taiwan

    Directory of Open Access Journals (Sweden)

    Tsung-Hsi Wang

    2017-05-01

    Full Text Available Residents’ work overload is a rising issue in Taiwan. Duty hours of the residents in the United States have been limited by the Accreditation Council for Graduate Medical Education Common Program Requirements since 2003; similar standards were not implemented in Taiwan until 2013. Taiwanese duty hour standards are the work hour limits adopted as part of the required teaching hospital accreditation status. In January 2015, the Ministry of Health and Welfare conducted a national survey for all house officers in Taiwan. We collected data including those on demographics and perceptions of residents regarding duty hour limits. Most respondents reported positive perceptions of the duty hour standards. They felt that these limits will improve resident education, quality of life, and patient safety. The strong incentive to follow the regulations (through teaching hospital accreditation could help protect residents (and patients from unsafe working conditions. However, further studies on the influence of shortened duty hour on professional development are necessary for future improvement.

  11. Hour of Code”: Can It Change Students’ Attitudes toward Programming?

    Directory of Open Access Journals (Sweden)

    Hayden Wimmer

    2016-03-01

    Full Text Available The Hour of Code is a one-hour introduction to computer science organized by Code.org, a non-profit dedicated to expanding participation in computer science. This study investigated the impact of the Hour of Code on students’ attitudes towards computer programming and their knowledge of programming. A sample of undergraduate students from two universities was selected to participate. Participants completed an Hour of Code tutorial as part of an undergraduate course. An electronic questionnaire was implemented in a pre-survey and post-survey format to gauge the change in student attitudes toward programming and their programming ability. The findings indicated the positive impact of the Hour of Code tutorial on students’ attitude toward programming. However, the students’ programming skills did not significantly change. The authors suggest that a deeper alignment of marketing, teaching, and content would help sustain the type of initiative exemplified by the Hour of Code.

  12. Psychological contracts: a new strategy for retaining reduced-hour physicians.

    Science.gov (United States)

    Hartwell, Jennifer K

    2010-01-01

    As a retention strategy, healthcare organizations offer reduced-hour schedules to physicians seeking better work-family balance. However, this quantitative study of 94 full-time and reduced-hour female physicians in the Boston area found that working fewer hours helps physicians achieve better balance but does not improve their burnout or career satisfaction, or impact their intention to quit or leave the field of medicine. Instead, the findings demonstrate that psychological contract fulfillment, which reflects the subjective nature of the employment relationship, is more important than work hours, an objective job condition, in predicting intention to quit and these other outcomes. A fine-grained analysis is initiated uncovering the multidimensionality of the psychological contract construct. To integrate successful reduced-hour arrangements for physicians, medical managers are directed to the importance of understanding the composition of reduced-hour physicians' psychological contracts, specifically, their need to do challenging work, receive high levels of supervisor support, and promotion opportunities.

  13. Earthing Technology

    NARCIS (Netherlands)

    Blok, Vincent

    2017-01-01

    In this article, we reflect on the conditions under which new technologies emerge in the Anthropocene and raise the question of how to conceptualize sustainable technologies therein. To this end, we explore an eco-centric approach to technology development, called biomimicry. We discuss opposing

  14. Technology Tiers

    DEFF Research Database (Denmark)

    Karlsson, Christer

    2015-01-01

    A technology tier is a level in a product system: final product, system, subsystem, component, or part. As a concept, it contrasts traditional “vertical” special technologies (for example, mechanics and electronics) and focuses “horizontal” feature technologies such as product characteristics...

  15. A simple method to downscale daily wind statistics to hourly wind data

    OpenAIRE

    Guo, Zhongling

    2013-01-01

    Wind is the principal driver in the wind erosion models. The hourly wind speed data were generally required for precisely wind erosion modeling. In this study, a simple method to generate hourly wind speed data from daily wind statistics (daily average and maximum wind speeds together or daily average wind speed only) was established. A typical windy location with 3285 days (9 years) measured hourly wind speed data were used to validate the downscaling method. The results showed that the over...

  16. How Do Average Hours Worked Vary with Development? Cross-Country Evidence and Implications

    OpenAIRE

    Fuchs-Schündeln, Nicola; Bick, Alexander; Lagakos, David

    2016-01-01

    How do average hours worked vary across the world income distribution? To answer this question, we build a new internationally comparable database of hours worked covering countries of all income levels. We document that average hours worked per adult are substantially higher in low-income countries than in high-income countries. This pattern holds for both men and women, for adults of all ages and education levels, and along both the extensive margin (employment rates) and intensive margin (...

  17. Work hours, weight status, and weight-related behaviors: a study of metro transit workers

    Directory of Open Access Journals (Sweden)

    Hannan Peter J

    2010-12-01

    Full Text Available Abstract Background Associations between hours worked per week and Body Mass Index (BMI, food intake, physical activity, and perceptions of eating healthy at work were examined in a sample of transit workers. Methods Survey data were collected from 1086 transit workers. Participants reported hours worked per week, food choices, leisure-time physical activity and perceptions of the work environment with regard to healthy eating. Height and weight were measured for each participant. Multivariate linear and logistic regressions were conducted to examine associations between work hours and behavioral variables. Associations were examined in the full sample and stratified by gender. Results Transit workers working in the highest work hour categories had higher BMI and poorer dietary habits, with results differing by gender. Working 50 or more hours per week was associated with higher BMI among men but not women. Additionally, working 50 or more hours per week was significantly associated with higher frequency of accessing cold beverage, cold food, and snack vending machines among men. Working 40 or more hours per week was associated with higher frequency of accessing cold food vending machines among women. Reported frequency of fruit and vegetable intake was highest among women working 50 or more hours per week. Intake of sweets, sugar sweetened beverages, and fast food did not vary with work hours in men or women. Physical activity and perception of ease of eating healthy at work were not associated with work hours in men or women. Conclusions Long work hours were associated with more frequent use of garage vending machines and higher BMI in transit workers, with associations found primarily among men. Long work hours may increase dependence upon food availability at the worksite, which highlights the importance of availability of healthy food choices.

  18. Analysis Of Navy Hornet Squadron Mishap Costs With Regard To Previously Flown Flight Hours

    Science.gov (United States)

    2017-06-01

    HORNET SQUADRON MISHAP COSTS WITH REGARD TO PREVIOUSLY FLOWN FLIGHT HOURS by Jason R. Baumann June 2017 Thesis Advisor: Robert Eger Co...TYPE AND DATES COVERED Master’s thesis 4. TITLE AND SUBTITLE ANALYSIS OF NAVY HORNET SQUADRON MISHAP COSTS WITH REGARD TO PREVIOUSLY FLOWN...flown flight hours with mishap costs . It uses a macro level approach by evaluating how a squadron’s previously flown flight hours affect mishap cost and

  19. Out-of-hours maxillofacial trauma surgery: a risk factor for complications?

    Science.gov (United States)

    Bertram, A; Hyam, D; Hapangama, N

    2013-02-01

    Recent literature from general and orthopaedic surgery as well as anaesthetic viewpoints has identified that operations performed outside normal work hours pose potential risks for both patients and healthcare workers. This is in contrast to the increasing pressure for 24h surgical availability for the public and the desire to reduce waiting times for patients. Further, there is evidence of the effects of fatigue on reducing performance. The authors aim to compare outcomes of maxillofacial trauma surgery performed in and out of normal work hours. Retrospective analysis was carried out on all maxillofacial trauma surgery under general anaesthesia at a tertiary referral hospital over a 14-month period. Outcomes of patient mortality, injury severity, patient demographics and operation duration were analysed with reference to two groups: in-hours (0800-1700 Monday to Friday) and out-of-hours (1700-0800 Monday to Friday as well as all operations performed Saturday and Sunday). 134 patients/procedures met the inclusion criteria, 53 out-of-hours and 81 in-hours. A statistically significant (p=0.05) higher complication rate (13%) was found in the out-of-hours cases compared to the in-hours cases (4%). The potential implications for this result on the need for increased availability of dedicated in-hours maxillofacial trauma operating lists at major hospitals are discussed. Copyright © 2012 International Association of Oral and Maxillofacial Surgeons. All rights reserved.

  20. A case study of cost-efficient staffing under annualized hours.

    Science.gov (United States)

    van der Veen, Egbert; Hans, Erwin W; Veltman, Bart; Berrevoets, Leo M; Berden, Hubert J J M

    2015-09-01

    We propose a mathematical programming formulation that incorporates annualized hours and shows to be very flexible with regard to modeling various contract types. The objective of our model is to minimize salary cost, thereby covering workforce demand, and using annualized hours. Our model is able to address various business questions regarding tactical workforce planning problems, e.g., with regard to annualized hours, subcontracting, and vacation planning. In a case study for a Dutch hospital two of these business questions are addressed, and we demonstrate that applying annualized hours potentially saves up to 5.2% in personnel wages annually.

  1. The Evaluation Of 6 And 12 Hour Urine Collection For Assessing Proteinuriu In The Hypertensive Gravida

    Directory of Open Access Journals (Sweden)

    Rahimi Sherbaf F

    2003-10-01

    Full Text Available The objective of this study was to determine wether a urine collection of less than 24 hours duration accurately assesses the level of preteinuria in inpatients being evaluated for preeclampsia."nMaterials and Methods: Patients admitted to the Mirza Kouchak-Khan hospital between years 2001 to 2002, underwent 3 consecutive collections consisting of two 6 hour and one 12 hour collection. Each volume, and urine creatinine. A concurrent serum creatinine value was obtained. The protein: creatinine ratio and creatine clearance were calculated. Pearson's correlation/sensitivity, specificity and positive and negative predictive values were assessed."nResults: A total of 32 patients (98% were preeclamptic. Total protein and serum creatinine were significantly correlated and the protein: creatinine ratio was moderately correlated between the collections. The 1st 6 hours collection (8 Am to 2 pm had a sensitivity and specificity of 100%. The second 6 hours had a sensitivity and specificity of 96% and 86.6%. The first 12 hours had a sensitivity and specificity of 100% and 93.2%. The 2 nd 12 hours (8 Am to 8 pm had a sensitivity and specificity of 80% and 93.3% respectively. There was a significant diurnal pattern of proteinuria."nConclusion: In conclusion based on the results achieved it can be concluded that a 6 and 12 hours urine collection/especially the first 6 hours after patient awakening can accurately assess proteinuria in the hypertensive gravida.

  2. Optics and communication technology major of physics undergraduate degree at King Mongkut's Institute of Technology Ladkrabang

    Science.gov (United States)

    Buranasiri, Prathan

    2014-09-01

    A physics undergraduate degree major in optics and communication technology has been offered at King Mongkut's Institute of Technology Ladkrabang (KMITL), Bangkok, Thailand. There are nine required three credit hour courses including two laboratory courses plus a number of selections in optics and communication based technology courses. For independent thinking and industrial working skills, nine credit hours of research project, practical training or overseas studies are included for selection in the final semester. Students are encouraged to participate in international conferences and professional organizations. Recently the program, with support from SPIE and OSA, has organized its first international conference on photonic solutions 2013 (ICPS 2013).

  3. Soulful Technologies

    DEFF Research Database (Denmark)

    Fausing, Bent

    2010-01-01

    or anthropomorphism is important for the branding of new technology. Technology is seen as creating a techno-transcendence towards a more qualified humanity which is in contact with fundamental human values like intuition, vision, and sensing; all the qualities that technology, industrialization, and rationalization......, - in short modernity - have taken away from human existence. What old technology has removed now comes back through new technology promoting a better humanity. The present article investigates how digital technology and affects are presented and combined, with examples from everyday imagery, e.g. TV......Samsung introduced in 2008 a mobile phone called "Soul" made with a human touch and including itself a "magic touch". Through the analysis of a Nokia mobile phone TV-commercials I want to examine the function and form of digital technology in everyday images. The mobile phone and its digital camera...

  4. Effect of a protected sleep period on hours slept during extended overnight in-hospital duty hours among medical interns: a randomized trial.

    Science.gov (United States)

    Volpp, Kevin G; Shea, Judy A; Small, Dylan S; Basner, Mathias; Zhu, Jingsan; Norton, Laurie; Ecker, Adrian; Novak, Cristina; Bellini, Lisa M; Dine, C Jessica; Mollicone, Daniel J; Dinges, David F

    2012-12-05

    A 2009 Institute of Medicine report recommended protected sleep periods for medicine trainees on extended overnight shifts, a position reinforced by new Accreditation Council for Graduate Medical Education requirements. To evaluate the feasibility and consequences of protected sleep periods during extended duty. Randomized controlled trial conducted at the Philadelphia VA Medical Center medical service and Oncology Unit of the Hospital of the University of Pennsylvania (2009-2010). Of the 106 interns and senior medical students who consented, 3 were not scheduled on any study rotations. Among the others, 44 worked at the VA center, 16 at the university hospital, and 43 at both. Twelve 4-week blocks were randomly assigned to either a standard intern schedule (extended duty overnight shifts of up to 30 hours; equivalent to 1200 overnight intern shifts at each site), or a protected sleep period (protected time from 12:30 AM to 5:30 AM with handover of work cell phone; equivalent to 1200 overnight intern shifts at each site). Participants were asked to wear wrist actigraphs and complete sleep diaries. Primary outcome was hours slept during the protected period on extended duty overnight shifts. Secondary outcome measures included hours slept during a 24-hour period (noon to noon) by day of call cycle and Karolinska sleepiness scale. For 98.3% of on-call nights, cell phones were signed out as designed. At the VA center, participants with protected sleep had a mean 2.86 hours (95% CI, 2.57-3.10 hours) of sleep vs 1.98 hours (95% CI, 1.68-2.28 hours) among those who did not have protected hours of sleep (P < .001). At the university hospital, participants with protected sleep had a mean 3.04 hours (95% CI, 2.77-3.45 hours) of sleep vs 2.04 hours (95% CI, 1.79-2.24) among those who did not have protected sleep (P < .001). Participants with protected sleep were significantly less likely to have call nights with no sleep: 5.8% (95% CI, 3.0%-8.5%) vs 18.6% (95% CI, 13

  5. Technology '90

    International Nuclear Information System (INIS)

    1991-01-01

    The US Department of Energy (DOE) laboratories have a long history of excellence in performing research and development in a number of areas, including the basic sciences, applied-energy technology, and weapons-related technology. Although technology transfer has always been an element of DOE and laboratory activities, it has received increasing emphasis in recent years as US industrial competitiveness has eroded and efforts have increased to better utilize the research and development resources the laboratories provide. This document, Technology '90, is the latest in a series that is intended to communicate some of the many opportunities available for US industry and universities to work with the DOE and its laboratories in the vital activity of improving technology transfer to meet national needs. Technology '90 is divided into three sections: Overview, Technologies, and Laboratories. The Overview section describes the activities and accomplishments of the DOE research and development program offices. The Technologies section provides descriptions of new technologies developed at the DOE laboratories. The Laboratories section presents information on the missions, programs, and facilities of each laboratory, along with a name and telephone number of a technology transfer contact for additional information. Separate papers were prepared for appropriate sections of this report

  6. HEP visualization and video technology

    International Nuclear Information System (INIS)

    Lebrun, P.; Swoboda, D.

    1994-01-01

    The use of scientific visualization for HEP analysis is briefly reviewed. The applications are highly interactive and very dynamical in nature. At Fermilab, E687, in collaboration with Visual Media Services, has produced a 1/2 hour video tape demonstrating the capability of SGI-EXPLORER applied to a Dalitz Analysis of Charm decay. This short contribution describes the authors experience with visualization and video technologies

  7. Association Between Flexible Duty Hour Policies and General Surgery Resident Examination Performance: A Flexibility in Duty Hour Requirements for Surgical Trainees (FIRST) Trial Analysis.

    Science.gov (United States)

    Blay, Eddie; Hewitt, D Brock; Chung, Jeanette W; Biester, Thomas; Fiore, James F; Dahlke, Allison R; Quinn, Christopher M; Lewis, Frank R; Bilimoria, Karl Y

    2017-02-01

    Concerns persist about the effect of current duty hour reforms on resident educational outcomes. We investigated whether a flexible, less-restrictive duty hour policy (Flexible Policy) was associated with differential general surgery examination performance compared with current ACGME duty hour policy (Standard Policy). We obtained examination scores on the American Board of Surgery In-Training Examination, Qualifying Examination (written boards), and Certifying Examination (oral boards) for residents in 117 general surgery residency programs that participated in the Flexibility in Duty Hour Requirements for Surgical Trainees (FIRST) Trial. Using bivariate analyses and regression models, we compared resident examination performance across study arms (Flexible Policy vs Standard Policy) for 2015 and 2016, and 1 year of the Qualifying Examination and Certifying Examination. Adjusted analyses accounted for program-level factors, including the stratification variable for randomization. In 2016, FIRST trial participants were 4,363 general surgery residents. Mean American Board of Surgery In-Training Examination scores for residents were not significantly different between study groups (Flexible Policy vs Standard Policy) overall (Flexible Policy: mean [SD] 502.6 [100.9] vs Standard Policy: 502.7 [98.6]; p = 0.98) or for any individual postgraduate year level. There was no difference in pass rates between study arms for either the Qualifying Examination (Flexible Policy: 90.4% vs Standard Policy: 90.5%; p = 0.99) or Certifying Examination (Flexible Policy: 86.3% vs Standard Policy: 88.6%; p = 0.24). Results from adjusted analyses were consistent with these findings. Flexible, less-restrictive duty hour policies were not associated with differences in general surgery resident performance on examinations during the FIRST Trial. However, more years under flexible duty hour policies might be needed to observe an effect. Copyright © 2016 American College of Surgeons

  8. The development and performance of after-hours primary care in the Netherlands: a narrative review.

    NARCIS (Netherlands)

    Smits, M.; Rutten, M.; Keizer, E.; Wensing, M.; Westert, G.; Giesen, P.

    2017-01-01

    Background. In the Netherlands, out-of-hours primary care is provided in general-practitionercooperatives (GPCs). These are increasingly located on site with emergency departments (ED), forming Emergency-Care-Access-Points (ECAP). A more efficient and economical organization of out-of-hours primary

  9. E-4B Crew Fatigue Associated with 30-Hour IOT&E Mission

    Science.gov (United States)

    1980-10-01

    collection. Some data were collected asmuch as 60-90 minutes on either side of the scheduled times to allow for unin-terrupted work and sleep periods . A...mission starting in the early evening hours because two normal sleep periods would be disrupted, the second during the final hours of the mission

  10. Unexpected Hospitalisations at a 23-Hour Observation Unit in a Paediatric Emergency Department of Northern India

    OpenAIRE

    Mahajan, Vidushi; Arora, Sumant; Kaur, Tarundeep; Gupta, Sorab; Guglani, Vishal

    2013-01-01

    Background: The 23-hour Observation Unit (OU) is a novel and an effective means for tackling overcrowding in busy Paediatric Emergency Departments (PED) worldwide. However, unexpected hospitalisations in the OU involve transfer of care and they reduce the efficiency of the OU. Hence, we aimed to study the presenting diagnoses which were responsible for the unexpected hospitalisations in a 23-hour OU.

  11. 76 FR 13121 - Electronic On-Board Recorders and Hours of Service Supporting Documents

    Science.gov (United States)

    2011-03-10

    ... Federal Motor Carrier Safety Administration 49 CFR Parts 385, 390, and 395 RIN 2126-AB20 Electronic On-Board Recorders and Hours of Service Supporting Documents AGENCY: Federal Motor Carrier Safety... requested that FMCSA extend the comment period for the Electronic On-Board Recorder and Hours of Service...

  12. 77 FR 7562 - Electronic On-Board Recorders and Hours of Service Supporting Documents

    Science.gov (United States)

    2012-02-13

    ... the Electronic On-Board Recorders and Hours of Service Supporting Documents rulemaking (EOBR 2) by... Federal Motor Carrier Safety Administration 49 CFR Parts 385, 390, and 395 RIN 2126-AB20 Electronic On-Board Recorders and Hours of Service Supporting Documents AGENCY: Federal Motor Carrier Safety...

  13. Bullying Behavior, Parents' Work Hours and Early Adolescents' Perceptions of Time Spent with Parents

    Science.gov (United States)

    Christie-Mizell, C. Andre; Keil, Jacqueline M.; Laske, Mary Therese; Stewart, Jennifer

    2011-01-01

    This research investigates the relationships among bullying behavior, mother's and father's work hours, and early adolescents' perceptions of whether they spend sufficient time with their parents. In cross-sectional models, we find maternal work hours are modestly associated with increases in bullying behavior. However, in more rigorous change…

  14. Physiological and psychological impacts of extended work hours in logging operations

    Science.gov (United States)

    Dana Mitchell; Tom Gallagher

    2007-01-01

    A study was initiated in 2006 to develop an understanding of the considerations of using extended work hours in the logging industry in the southeastern United States. Through semistructured interviews, it was obvious that loggers were individually creating ways of successfully implementing extended working hours without understanding the impacts that extended working...

  15. An Hourly Dose-Escalation Desensitization Protocol for Aspirin-Exacerbated Respiratory Disease.

    Science.gov (United States)

    Chen, Justin R; Buchmiller, Brett L; Khan, David A

    2015-01-01

    Aspirin desensitization followed by maintenance therapy effectively improves symptom control in patients with aspirin exacerbated respiratory disease (AERD). The majority of current desensitization protocols use 3-hour dosing intervals and often require 2 to 3 days to complete. We evaluated hourly dose escalations in a subset of patients with chronic rhinosinusitis, nasal polyps, and asthma who historically reacted to aspirin within 1 hour or were avoiding aspirin with the goal of developing a safe and efficient desensitization protocol. Fifty-seven aspirin desensitizations were performed under the hourly protocol. All patients had refractory nasal polyposis as an indication for aspirin desensitization. The clinical characteristics of each subject were analyzed in relation to aspects of his or her reactions during the procedure. Ninety-eight percent of study patients were successfully treated under the hourly protocol, including those with a history of severe reactions and intubation. None required further medication than is available in an outpatient allergy clinic. A total of 96% of reactors recorded a bronchial or naso-ocular reaction within 1 hour of the preceding dose. Of the total patients on this protocol, 40% were able to complete the procedure in a single day, and 60% within 2 days. Patients with AERD who have a history of symptoms less than 1 hour after aspirin exposure can be safely desensitized with a 1-hour dose-escalation protocol that can often be completed in a single day. Copyright © 2015 American Academy of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved.

  16. New Measures of Teachers' Work Hours and Implications for Wage Comparisons

    Science.gov (United States)

    West, Kristine L.

    2014-01-01

    Researchers have good data on teachers' annual salaries but a hazy understanding of teachers' hours of work. This makes it difficult to calculate an accurate hourly wage and leads policy makers to default to anecdote rather than fact when debating teacher pay. Using data from the American Time Use Survey, I find that teachers work an average of…

  17. A case study of cost-efficient staffing under annualized hours

    NARCIS (Netherlands)

    van der Veen, Egbert; Hans, Elias W.; Veltman, Bart; Berrevoets, Leo M.; Berden, Hubert J.J.M.

    2014-01-01

    We propose a mathematical programming formulation that incorporates annualized hours and shows to be very flexible with regard to modeling various contract types. The objective of our model is to minimize salary cost, thereby covering workforce demand, and using annualized hours. Our model is able

  18. A case study of cost-efficient staffing under annualized hours

    NARCIS (Netherlands)

    van der Veen, Egbert; Hans, Elias W.; Veltman, Bart; Berrevoets, L.M.; Berden, H.J.J.M.

    We propose a mathematical programming formulation that incorporates annualized hours and shows to be very flexible with regard to modeling various contract types. The objective of our model is to minimize salary cost, thereby covering workforce demand, and using annualized hours. Our model is able

  19. Chicago Mothers on Finding and Using Child Care during Nonstandard Work Hours

    Science.gov (United States)

    Stoll, Marcia; Alexander, David; Nicpon, Christine

    2015-01-01

    Few issues confound child care policy more than the fact that very large numbers of mothers work evenings, overnight, or weekend hours when fewer child care programs operate. The authors interviewed 50 single Chicago mothers with nontraditional work hours about their experiences finding and using child care. Participants' responses addressed…

  20. The Development and Performance of After-Hours Primary Care in the Netherlands: A Narrative Review

    NARCIS (Netherlands)

    Smits, M.; Rutten, M.H.; Keizer, E.; Wensing, M.; Westert, G.P.; Giesen, P.H.

    2017-01-01

    In many Western countries, hospital emergency departments are overcrowded, leading to the desire to strengthen primary care, particularly after hours. To achieve this goal, an increasing number of Western nations are reorganizing their after-hours primary care systems into large-scale primary care

  1. 7 CFR 226.19 - Outside-school-hours care center provisions.

    Science.gov (United States)

    2010-01-01

    ...-school-hours care centers shall be eligible to serve one or more of the following meal types: breakfasts, snacks and suppers. In addition, outside-school-hours care centers shall be eligible to serve lunches to... care center participating in the Program shall claim only the meal types specified in its approved...

  2. Studying the association between postgraduate trainees' work hours, stress and the use of maladaptive coping strategies.

    Science.gov (United States)

    Kasi, Pashtoon Murtaza; Khawar, Talha; Khan, Farooq Hasan; Kiani, Jawad Ghazanfar; Khan, Umber Zaheer; Khan, Hadi Mohammad; Khuwaja, Urooj Bakht; Rahim, Musa

    2007-01-01

    The growing debate regarding long working hours of postgraduate trainees has been receiving considerable attention recently. This greater workload contributes to increasing stress. Our objective was to specifically study the association between long working hours, stress and the greater use of 'maladaptive' coping strategies. A cross-sectional descriptive study was carried out on all interns and residents at the Aga Khan University Hospital during February to May, 2005. Level of stress was measured by use of General Health Questionnaire (GHQ-12) and the use of maladaptive coping mechanisms through Brief Cope-28. 55.1% scored over the threshold for mild stress i.e. GHQ > 3, while more than 46% of the trainees scored over the threshold of more than 4 for morbid stress. Trainees under stress reported more working hours on average as compared to those not under stress, 83.8 and 74.7 hours respectively. At the same time, those working for longer hours were more likely to have used these negative coping mechanisms, which would further contribute to more stress rather than relieving it. Significant levels of stress have been identified. Along with this, those working for longer hours were more likely to have used these negative coping mechanisms. Reduction of working hours is important. Simultaneously, interventions need to be planned at imparting knowledge, awareness and skills to cope with various kinds of stressors encountered by a trainee during his/her training. Additionally, limits need to be devised for the working hours of the trainees.

  3. Nonpersister Study: Zero Credit Hours Earned, Spring 1976 to Fall 1976.

    Science.gov (United States)

    Baratta, Mary Kathryne

    Questionnaires were sent to 601 zero credit-hour earned nonpersisting students at Moraine Valley Community College (MVCC) who enrolled in spring but did not re-enroll for fall 1976. The survey response rate, which included 85 students contacted by telephone, was 40%. Information on educational goals, withdrawal from classes, hours employed while…

  4. 50 CFR 20.107 - Seasons, limits, and shooting hours for tundra swans.

    Science.gov (United States)

    2010-10-01

    ... tundra swans. 20.107 Section 20.107 Wildlife and Fisheries UNITED STATES FISH AND WILDLIFE SERVICE..., and Shooting Hours Schedules § 20.107 Seasons, limits, and shooting hours for tundra swans. This section provides for the annual hunting of tundra swans in designated portions of the 48 contiguous United...

  5. Effect of nursing care hours on the outcomes of Intensive Care assistance.

    Directory of Open Access Journals (Sweden)

    Tatiana do Altíssimo Nogueira

    Full Text Available To correlate the average number of nursing care hours dedicated to Intensive Care Unit (ICU patients with nursing care indicators.Transverse, descriptive study conducted between 2011 and 2013. Data were obtained from the electronic records system and from the nursing staff daily schedule. Generalized Linear Models were used for analysis.A total of 1,717 patients were included in the study. The average NAS (Nursing Activities Score value was 54.87. The average ratio between the number of nursing care hours provided to the patient and the number of nursing care hours required by the patient (hours ratio was 0.87. Analysis of the correlation between nursing care indicators and the hours ratio showed that the indicators phlebitis and ventilator-associated pneumonia significantly correlated with hours ratio; that is, the higher the hours ratio, the lower the incidence of phlebitis and ventilator-associated pneumonia.The number of nursing care hours directly impacts patient outcomes, which makes adjustment of nurse staffing levels essential.

  6. Precarious employment, working hours, work-life conflict and health in hotel work.

    Science.gov (United States)

    McNamara, Maria; Bohle, Philip; Quinlan, Michael

    2011-01-01

    Precarious or temporary work is associated with adverse outcomes including low control over working hours, work-life conflict and stress. The rise in precarious employment is most marked in the service sector but little research has been done on its health effects in this sector. This study compares permanent and temporary workers in the hotel industry, where working hours are highly variable. Survey data from 150 workers from eight 3-Star hotels in urban and regional areas around Sydney were analyzed. Forty-five per cent were male and 52 per cent were female. Fifty four per cent were permanent full-time and 46 per cent were temporary workers. The effects of employment status on perceived job security, control over working hours, and work-life conflict are investigated using PLS-Graph 3.0. The effects of control over working hours, on work-life conflict and subsequent health outcomes are also explored. Temporary workers perceived themselves as less in control of their working hours, than permanent workers (β = .27). However, they also reported lower levels of work intensity (β = .25) and working hours (β = .38). The effects of low hours control (β = .20), work intensity (β = .29), and excessive hours (β = .39) on work-life conflict (r² = .50), and subsequent health effects (r² = .30), are illustrated in the final structural equation model. Copyright © 2010 Elsevier Ltd and The Ergonomics Society. All rights reserved.

  7. Optimization of Statistical Estimation of Half-Hour Load Maximum of Industrial Enterprise

    Directory of Open Access Journals (Sweden)

    V. A. Anischenko

    2009-01-01

    Full Text Available The paper considers a problem pertaining to determination of a statistical estimation of the half-hour load maximum of an industrial enterprise on the criterion of a minimum of total expenses. The estimation is made on the basis of fractile optimization characterizing a corridor width of value uncertainty of the half-hour load

  8. 45 CFR 2543.84 - Contract Work Hours and Safety Standards Act.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 4 2010-10-01 2010-10-01 false Contract Work Hours and Safety Standards Act. 2543... OTHER NON-PROFIT ORGANIZATIONS Statutory Compliance § 2543.84 Contract Work Hours and Safety Standards Act. Where applicable, all contracts awarded by recipients in excess of $2000 for construction...

  9. 40 CFR Table 1 to Subpart A of... - Detection Sensitivity Levels (grams per hour)

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 9 2010-07-01 2010-07-01 false Detection Sensitivity Levels (grams per hour) 1 Table 1 to Subpart A of Part 63 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Levels (grams per hour) Monitoring frequency per subpart a Detection sensitivity level Bi-Monthly 60 Semi...

  10. 40 CFR Table 3 to Subpart A of... - Detection Sensitivity Levels (grams per hour)

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 15 2010-07-01 2010-07-01 false Detection Sensitivity Levels (grams per hour) 3 Table 3 to Subpart A of Part 65 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... 3 Table 3 to Subpart A of Part 65—Detection Sensitivity Levels (grams per hour) Monitoring Frequency...

  11. Quality of after-hours primary care in the Netherlands: a narrative review

    NARCIS (Netherlands)

    Giesen, P.H.J.; Smits, M.; Huibers, L.; Grol, R.P.T.M.; Wensing, M.J.P.

    2011-01-01

    Many Western countries are seeking an organizational model for after-hours primary care that is safe, efficient, and satisfactory for patients and health care professionals. Around the year 2000, Dutch primary care physicians (PCPs) reorganized their after-hours primary care and shifted from small

  12. Effects of a night-team system on resident sleep and work hours.

    Science.gov (United States)

    Chua, Kao-Ping; Gordon, Mary Beth; Sectish, Theodore; Landrigan, Christopher P

    2011-12-01

    In 2009, Children's Hospital Boston implemented a night-team system on general pediatric wards to reduce extended work shifts. Residents worked 5 consecutive nights for 1 week and worked day shifts for the remainder of the rotation. Of note, resident staffing at night decreased under this system. The objective of this study was to assess the effects of this system on resident sleep and work hours. We conducted a prospective cohort study in which residents on the night-team system logged their sleep and work hours on work days. These data were compared with similar data collected in 2004, when there was a traditional call system. In 2004 and 2009, mean shift length was 15.22 ± 6.86 and 12.92 ± 5.70 hours, respectively (P = .161). Daily work hours were 10.49 ± 6.85 and 8.79 ± 6.42 hours, respectively (P = .08). Nightly sleep time decreased from 6.72 ± 2.60 to 4.77 ± 2.46 hours (P team system was unexpectedly associated with decreased sleep hours. As residency programs create work schedules that are compliant with the 2011 Accreditation Council for Graduate Medical Education duty-hour standards, resident sleep should be monitored carefully.

  13. Why Shops Close Again : An Evolutionary Perspective on the Deregulation of Shopping Hours

    NARCIS (Netherlands)

    Kosfeld, M.

    1999-01-01

    This paper introduces a new perspective on the deregulation of shopping hours based on ideas from evolutionary game theory. We study a retail economy where shopping hours have been deregulated recently. It is argued that first, the deregulation leads to a coordination problem between store owners

  14. Development and validation of a direct-comparison method for cardiac {sup 123}I-metaiodobenzylguanidine washout rates derived from late 3-hour and 4-hour imaging

    Energy Technology Data Exchange (ETDEWEB)

    Okuda, Koichi; Hashimoto, Mitsumasa [Kanazawa Medical University, Department of Physics, Kahoku, Ishikawa (Japan); Nakajima, Kenichi; Matsuo, Shinro; Taki, Junichi; Kinuya, Seigo [Kanazawa University Hospital, Department of Nuclear Medicine, Kanazawa, Ishikawa (Japan); Sugino, Shuichi [Okayama Kyokuto Hospital, Department of Radiology, Okayama, Okayama (Japan); Kirihara, Yumiko [FUJIFILM RI Pharma Co., Ltd., Chuo-Ku, Tokyo (Japan)

    2016-02-15

    The washout rate (WR) has been used in {sup 123}I-metaiodobenzylguanidine (MIBG) imaging to evaluate cardiac sympathetic innervation. However, WR varies depending on the time between the early and late MIBG scans. Late scans are performed at either 3 or 4 hours after injection of MIBG. The aim of this study was to directly compare the WR at 3 hours (WR{sub 3h}) with the WR at 4 hours (WR{sub 4h}). We hypothesized that the cardiac count would reduce linearly between the 3-hour and 4-hour scans. A linear regression model for cardiac counts at two time-points was generated. We enrolled a total of 96 patients who underwent planar {sup 123}I-MIBG scintigraphy early (15 min) and during the late phase at both 3 and 4 hours. Patients were randomly divided into two groups: a model-creation group (group 1) and a clinical validation group (group 2). Cardiac counts at 15 minutes (count{sub early}), 3 hours (count{sub 3h}) and 4 hours (count{sub 4h}) were measured. Cardiac count{sub 4h} was mathematically estimated using the linear regression model from count{sub early} and count{sub 3h}. In group 1, the actual cardiac count{sub 4h}/count{sub early} was highly significantly correlated with count{sub 3h}/count{sub early} (r = 0.979). In group 2, the average estimated count{sub 4h} was 92.8 ± 31.9, and there was no significant difference between this value and the actual count{sub 4h} (91.9 ± 31.9). Bland-Altman analysis revealed a small bias of -0.9 with 95 % limits of agreement of -6.2 and +4.3. WR{sub 4h} calculated using the estimated cardiac count{sub 4h} was comparable to the actual WR{sub 4h} (24.3 ± 9.6 % vs. 25.1 ± 9.7 %, p = ns). Bland-Altman analysis and the intraclass correlation coefficient showed that there was excellent agreement between the estimated and actual WR{sub 4h}. The linear regression model that we used accurately estimated cardiac count{sub 4h} using count{sub early} and count{sub 3h}. Moreover, WR{sub 4h} that was mathematically calculated using

  15. Sensemaking technologies

    DEFF Research Database (Denmark)

    Madsen, Charlotte Øland

    Research scope: The scope of the project is to study technological implementation processes by using Weick's sensemaking concept (Weick, 1995). The purpose of using a social constructivist approach to investigate technological implementation processes is to find out how new technologies transform...... patterns of social action and interaction in organisations (Barley 1986; 1990, Orlikowski 2000). Current research in the field shows that new technologies affect organisational routines/structures/social relationships/power relations/dependencies and alter organisational roles (Barley 1986; 1990, Burkhardt......, Orlikowski 2000). Viewing the use of technology as a process of enactment opens up for investigating the social processes of interpreting new technology into the organisation (Orlikowski 2000). The scope of the PhD project will therefore be to gain a deeper understanding of how the enactment of new...

  16. The Impact of Work and Volunteer Hours on the Health of Undergraduate Students.

    Science.gov (United States)

    Lederer, Alyssa M; Autry, Dana M; Day, Carol R T; Oswalt, Sara B

    2015-01-01

    To examine the impact of work and volunteer hours on 4 health issues among undergraduate college students. Full-time undergraduate students (N = 70,068) enrolled at 129 institutions who participated in the Spring 2011 American College Health Association-National College Health Assessment II survey. Multiple linear regression and binary logistic regression were used to examine work and volunteer hour impact on depression, feelings of being overwhelmed, sleep, and physical activity. The impact of work and volunteer hours was inconsistent among the health outcomes. Increased work hours tended to negatively affect sleep and increase feelings of being overwhelmed. Students who volunteered were more likely to meet physical activity guidelines, and those who volunteered 1 to 9 hours per week reported less depression. College health professionals should consider integrating discussion of students' employment and volunteering and their intersection with health outcomes into clinical visits, programming, and other services.

  17. Alcohol outlet business hours and violent crime in New York state.

    Science.gov (United States)

    Schofield, Timothy P; Denson, Thomas F

    2013-01-01

    Alcohol-related harm places a significant strain on victims, perpetrators and society. The present research reports on how licensed alcohol outlet business hours may influence the reported incidence of interpersonal violence and the associated burden of disease. We examined the relationship between alcohol outlet business hours and violent crime in 2009 in New York State (excluding New York City). Regression analyses modeled the burden of disease for the violence associated with outlet business hours. Every 1 h increase in weekly outlet business hours was associated with a greater reported incidence of violent crimes generally, more reported aggravated assaults and more reported non-gun violence. The estimated cost from having licensed premises open after 1 a.m. was $194 million in 2009. The findings suggest that alcohol outlet business hours affect the incidence of reported violence even in regions that would not be considered to have severe problems with alcohol-fueled violence.

  18. Common long-range dependence in a panel of hourly Nord Pool electricity prices and loads

    DEFF Research Database (Denmark)

    Ergemen, Yunus Emre; Haldrup, Niels; Rodríguez-Caballero, Carlos Vladimir

    Equilibrium electricity spot prices and loads are often determined simultaneously in a day-ahead auction market for each hour of the subsequent day. Hence daily observations of hourly prices take the form of a periodic panel rather than a time series of hourly observations. We consider novel panel...... data approaches to analyse the time series and the cross-sectional dependence of hourly Nord Pool electricity spot prices and loads for the period 2000-2013. Hourly electricity prices and loads data are characterized by strong serial long-range dependence in the time series dimension in addition...... of a fractionally integrated panel data model and it is shown that both prices and loads consist of common factors with long memory and with loadings that vary considerably during the day. Due to the competitiveness of the Nordic power market the aggregate supply curve approximates well the marginal costs...

  19. Technological risks

    International Nuclear Information System (INIS)

    Klinke, A.; Renn, O.

    1998-01-01

    The empirical part about the technological risks deals with different technologies: nuclear energy, early warning systems of nuclear weapons and NBC-weapons, and electromagnetic fields. The potential of damage, the contemporary management strategies and the relevant characteristics will be described for each technology: risks of nuclear energy; risks of early warning systems of nuclear weapons and NBC-weapons; risks of electromagnetic fields. (authors)

  20. Technological risks

    Energy Technology Data Exchange (ETDEWEB)

    Klinke, A.; Renn, O. [Center of Technology Assessment in Baden-Wuerttemberg, Stuttgart (Germany)

    1998-07-01

    The empirical part about the technological risks deals with different technologies: nuclear energy, early warning systems of nuclear weapons and NBC-weapons, and electromagnetic fields. The potential of damage, the contemporary management strategies and the relevant characteristics will be described for each technology: risks of nuclear energy; risks of early warning systems of nuclear weapons and NBC-weapons; risks of electromagnetic fields. (authors)

  1. Technology alliances

    International Nuclear Information System (INIS)

    Torgerson, D.F.; Boczar, P.G.; Kugler, G.

    1991-10-01

    In the field of nuclear technology, Canada and Korea developed a highly successful relationship that could serve as a model for other high-technology industries. This is particularly significant when one considers the complexity and technical depth required to design, build and operate a nuclear reactor. This paper will outline the overall framework for technology transfer and cooperation between Canada and Korea, and will focus on cooperation in nuclear R and D between the two countries

  2. Chemistry Technology

    Data.gov (United States)

    Federal Laboratory Consortium — Chemistry technology experts at NCATS engage in a variety of innovative translational research activities, including:Design of bioactive small molecules.Development...

  3. Lessons from Studies to Evaluate an Online 24-Hour Recall for Use with Children and Adults in Canada

    Directory of Open Access Journals (Sweden)

    Sharon I. Kirkpatrick

    2017-01-01

    Full Text Available With technological innovation, comprehensive dietary intake data can be collected in a wide range of studies and settings. The Automated Self-Administered 24-hour (ASA24 Dietary Assessment Tool is a web-based system that guides respondents through 24-h recalls. The purpose of this paper is to describe lessons learned from five studies that assessed the feasibility and validity of ASA24 for capturing recall data among several population subgroups in Canada. These studies were conducted within a childcare setting (preschool children with reporting by parents, in public schools (children in grades 5–8; aged 10–13 years, and with community-based samples drawn from existing cohorts of adults and older adults. Themes emerged across studies regarding receptivity to completing ASA24, user experiences with the interface, and practical considerations for different populations. Overall, we found high acceptance of ASA24 among these diverse samples. However, the ASA24 interface was not intuitive for some participants, particularly young children and older adults. As well, technological challenges were encountered. These observations underscore the importance of piloting protocols using online tools, as well as consideration of the potential need for tailored resources to support study participants. Lessons gleaned can inform the effective use of technology-enabled dietary assessment tools in research.

  4. Technology Catalogue

    International Nuclear Information System (INIS)

    1994-02-01

    The Department of Energy's Office of Environmental Restoration and Waste Management (EM) is responsible for remediating its contaminated sites and managing its waste inventory in a safe and efficient manner. EM's Office of Technology Development (OTD) supports applied research and demonstration efforts to develop and transfer innovative, cost-effective technologies to its site clean-up and waste management programs within EM's Office of Environmental Restoration and Office of Waste Management. The purpose of the Technology Catalogue is to provide performance data on OTD-developed technologies to scientists and engineers assessing and recommending technical solutions within the Department's clean-up and waste management programs, as well as to industry, other federal and state agencies, and the academic community. OTD's applied research and demonstration activities are conducted in programs referred to as Integrated Demonstrations (IDs) and Integrated Programs (IPs). The IDs test and evaluate.systems, consisting of coupled technologies, at specific sites to address generic problems, such as the sensing, treatment, and disposal of buried waste containers. The IPs support applied research activities in specific applications areas, such as in situ remediation, efficient separations processes, and site characterization. The Technology Catalogue is a means for communicating the status. of the development of these innovative technologies. The FY93 Technology Catalogue features technologies successfully demonstrated in the field through IDs and sufficiently mature to be used in the near-term. Technologies from the following IDs are featured in the FY93 Technology Catalogue: Buried Waste ID (Idaho National Engineering Laboratory, Idaho); Mixed Waste Landfill ID (Sandia National Laboratories, New Mexico); Underground Storage Tank ID (Hanford, Washington); Volatile organic compound (VOC) Arid ID (Richland, Washington); and VOC Non-Arid ID (Savannah River Site, South Carolina)

  5. Antibiotic prescribing during office hours and out-of-hours : a comparison of quality and quantity in primary care in the Netherlands

    NARCIS (Netherlands)

    Debets, Vera Ec; Verheij, Theo Jm; van der Velden, Alike W

    BACKGROUND: Unnecessary and non-first-choice antibiotic prescribing is a significant problem in primary care. It is often argued that irrational prescribing is higher during out-of-hours (OOH) consultations. AIM: To obtain insight into the quantity and quality of OOH antibiotic prescribing for

  6. Abolishment of 24-hour continuous medical call duty in quebec: a quality of life survey of general surgical residents following implementation of the new work-hour restrictions.

    Science.gov (United States)

    Hamadani, Fadi T; Deckelbaum, Dan; Sauve, Alexandre; Khwaja, Kosar; Razek, Tarek; Fata, Paola

    2013-01-01

    The implementation of work hour restrictions across North America have resulted in decreased levels of self injury and medical errors for Residents. An arbitration ruling in Quebec has led to further curtailment of work hours beyond that proposed by the ACGME. This may threaten Resident quality of life and in turn decrease the educational quality of surgical residency training. We administered a quality of life questionnaire with an integrated education quality assessment tool to all General Surgery residents training at McGill 6 months after the work hour restrictions. Across several strata respondents reveal a decreased sense of educational quality and quality of life. The arbitration argued that work- hour restrictions would be necessary to improve quality of life for trainees and hence improve patient safety. Results from this study demonstrate the exact opposite in a large majority of respondents, who report a poorer quality of life and a self-reported inability on their part to provide continuous and safe patient care. Copyright © 2013 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.

  7. Effects of Late-Night Training on "Slow-Wave Sleep Episode" and Hour-by-Hour Derived Nocturnal Cardiac Autonomic Activity in Female Soccer Players.

    Science.gov (United States)

    Costa, Júlio A; Brito, João; Nakamura, Fábio Y; Oliveira, Eduardo M; Rebelo, António N

    2018-01-18

    To assess the sensitivity of nocturnal heart rate variability (HRV) monitoring methods to the effects of late-night soccer training sessions in female athletes. Eleven female soccer players competing in the 1 st division of the Portuguese soccer league wore HR monitors during night-sleep throughout a one-week competitive in-season microcycle, after late-night training sessions (n = 3) and rest days (n = 3). HRV was analyzed through "slow-wave sleep episode" (SWSE; 10 min duration) and "hour-by-hour" (all the RR intervals recorded throughout the hours of sleep). Training load was quantified by session rating of perceived exertion (sRPE: 281.8 ± 117.9 to 369.0 ± 111.7 a.u.) and training impulse (TRIMP: 77.5 ± 36.5 to 110.8 ± 31.6 a.u.), added to subjective well-being ratings (Hopper index: 11.6 ± 4.4 to 12.8 ± 3.2 a.u.). These variables were compared between training and rest days using repeated measures ANOVA. The ln-transformed SWSE cardiac autonomic activity (lnRMSSD varying between 3.92 ± 0.57 and 4.20 ± 0.60 ms; η p 2 = 0.16 [0.01-0.26]), lnHF, lnLF, lnSD1 and lnSD2 and the non-transformed LF/HF were not different among night-training session days and resting days (P > 0.05). Considering the hour-by-hour method (lnRMSSD varying between 4.05 ± 0.35 and 4.33 ± 0.32 ms; η p 2 = 0.46 [0.26-0.52]), lnHF, lnLF, lnSD1 and lnSD2 and the non-transformed LF/HF were not different among night-training session days and resting days (P > 0.05). Late-night soccer training does not seem to affect nocturnal SWSE and "hour-by-hour" HRV indices in highly-trained athletes.

  8. Thermally activated technologies: Technology Roadmap

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2003-05-01

    The purpose of this Technology Roadmap is to outline a set of actions for government and industry to develop thermally activated technologies for converting America’s wasted heat resources into a reservoir of pollution-free energy for electric power, heating, cooling, refrigeration, and humidity control. Fuel flexibility is important. The actions also cover thermally activated technologies that use fossil fuels, biomass, and ultimately hydrogen, along with waste heat.

  9. Technological Advancements

    Science.gov (United States)

    Kennedy, Mike

    2010-01-01

    The influx of technology has brought significant improvements to school facilities. Many of those advancements can be found in classrooms, but when students head down the hall to use the washrooms, they are likely to find a host of technological innovations that have improved conditions in that part of the building. This article describes modern…

  10. Maritime Technology

    DEFF Research Database (Denmark)

    Sørensen, Herman

    1997-01-01

    Elementary introduction to the subject "Maritime Technology".The contents include drawings, sketches and references in English without any supplementary text.......Elementary introduction to the subject "Maritime Technology".The contents include drawings, sketches and references in English without any supplementary text....

  11. I-131 attraction by thyroid during first hours following its oral administration

    International Nuclear Information System (INIS)

    Franquiz, J.M.; Cardenas, R.; Blanco, J.; Garcia, M.

    1982-01-01

    From radioisotopic investigations used to study thyroid function, that of I-131 attraction results to be one of the most known and used in medical practice. In the authors' laboratory measurement of I-131 activity upon the gland has been for long adopted at 24 hours after administration; however, current needs compel to look for an early time (within the first six hours) for measuring it. In the paper results of I-131 attraction by thyroid in a group with more than 200 patients at 2,4 and 24 hours following its administration are presented in order to assess a 24 hours attraction representativeness by an early attraction. Results demonstrate early attraction is representative of an attraction at 24 hours and with the same diagnostic usefulness. Normal and doubtful ranks for attraction in our medium are determined at 2 and 6 hours, being adopted as proceeding for those cases whose value should be found within doubtful rank, a measurement at 24 hours in order to determine functional condition of the gland. (author)

  12. Provision of out-of-hours interventional radiology services in the London Strategic Health Authority

    International Nuclear Information System (INIS)

    Illing, R.O.; Ingham Clark, C.L.; Allum, C.

    2010-01-01

    Aim: To review the provision of out-of-hours interventional radiology (IR) services in the London Strategic Health Authority (SHA). Materials and methods: All 29 acute hospitals in the London SHA were contacted between November 2008 and January 2009. A questionnaire based on the Royal College of Radiologists (RCR) guidelines assessed the provision of out-of-hours IR services. An 'ad-hoc' service was defined as on-call provision where not all the radiologists could perform intervention: If IR was required out of hours, an interventionalist came in when off-duty or the patient was transferred. Results: Seventeen out of the 29 (59%) hospitals provided ad-hoc out-of-hours services, eight (28%) provided a 24-hour rota, and four (14%) provide no out-of-hours cover. No ad-hoc service had formal transfer arrangements to a centre providing a 24 h service. Only two hospitals providing a 24 h service had six radiologists on the rota. Conclusion: Strategic planning for out-of-hours IR across London is recommended. This is likely to be welcomed by the hospitals involved, allowing informal arrangements to be formalized, and collaboration to provide comprehensive regional networks, provided appropriate funding is made available. A national audit is recommended; it is unlikely these findings are unique to London.

  13. The impact of the implementation of work hour requirements on residents' career satisfaction, attitudes and emotions.

    Science.gov (United States)

    Choi, Dongseok; Dickey, Jamie; Wessel, Kristen; Girard, Donald E

    2006-10-17

    To assess the impact of work hours' limitations required by the Accreditation Council for Graduate Medical Education (ACGME) on residents' career satisfaction, emotions and attitudes. A validated survey instrument was used to assess residents' levels of career satisfaction, emotions and attitudes before and after the ACGME duty hour requirements were implemented. The "pre" implementation survey was distributed in December 2002 and the "post" implementation one in December 2004. Only the latter included work-hour related questions. The response rates were 56% for the 2002 and 72% for the 2004 surveys respectively. Although career satisfaction remained unchanged, numerous changes occurred in both emotions and attitudes. Compared to those residents who did not violate work-hour requirements, those who did were significantly more negative in attitudes and emotions. With the implementation of the ACGME work hour limitations, the training experience became more negative for those residents who violated the work hour limits and had a small positive impact on those who did not violate them. Graduate medical education leaders must innovate to make the experiences for selected residents improved and still maintain compliance with the work hour requirements.

  14. Provision of out-of-hours interventional radiology services in the London Strategic Health Authority

    Energy Technology Data Exchange (ETDEWEB)

    Illing, R.O., E-mail: rowland@doctors.org.u [University College London Hospitals NHS Foundation Trust, 235 Euston Road, London NW1 2BU (United Kingdom); Ingham Clark, C.L.; Allum, C. [Whittington Hospital NHS Trust, London (United Kingdom)

    2010-04-15

    Aim: To review the provision of out-of-hours interventional radiology (IR) services in the London Strategic Health Authority (SHA). Materials and methods: All 29 acute hospitals in the London SHA were contacted between November 2008 and January 2009. A questionnaire based on the Royal College of Radiologists (RCR) guidelines assessed the provision of out-of-hours IR services. An 'ad-hoc' service was defined as on-call provision where not all the radiologists could perform intervention: If IR was required out of hours, an interventionalist came in when off-duty or the patient was transferred. Results: Seventeen out of the 29 (59%) hospitals provided ad-hoc out-of-hours services, eight (28%) provided a 24-hour rota, and four (14%) provide no out-of-hours cover. No ad-hoc service had formal transfer arrangements to a centre providing a 24 h service. Only two hospitals providing a 24 h service had six radiologists on the rota. Conclusion: Strategic planning for out-of-hours IR across London is recommended. This is likely to be welcomed by the hospitals involved, allowing informal arrangements to be formalized, and collaboration to provide comprehensive regional networks, provided appropriate funding is made available. A national audit is recommended; it is unlikely these findings are unique to London.

  15. The effects of health status and health shocks on hours worked.

    Science.gov (United States)

    Cai, Lixin; Mavromaras, Kostas; Oguzoglu, Umut

    2014-05-01

    We investigate the impact of health on working hours. This is in recognition of the fact that leaving the labour market because of persistently low levels of health status, or because of new health shocks, is only one of the possible responses open to employees. We use the first six waves of the Household, Income and Labour Dynamics in Australia (HILDA) Survey to estimate the joint effect of health status and health shocks on working hours. To account for zero working hours, we use a dynamic random effects Tobit model of working hours. We follow Heckman (1981) and approximate the unknown initial conditions with a static equation that utilises information from the first wave of the data. Predicted individual health status is used to ameliorate the possible effects of measurement error and endogeneity. We conclude that overall, lower health status results in fewer working hours and that when they occur, health shocks lead to further reductions in working hours. Estimation results show that the model performs well in separating the time-persistent effect of health status and the potentially more transient health shocks on working hours. Copyright © 2013 John Wiley & Sons, Ltd.

  16. New approach for optimal electricity planning and dispatching with hourly time-scale air quality and health considerations.

    Science.gov (United States)

    Kerl, Paul Y; Zhang, Wenxian; Moreno-Cruz, Juan B; Nenes, Athanasios; Realff, Matthew J; Russell, Armistead G; Sokol, Joel; Thomas, Valerie M

    2015-09-01

    Integrating accurate air quality modeling with decision making is hampered by complex atmospheric physics and chemistry and its coupling with atmospheric transport. Existing approaches to model the physics and chemistry accurately lead to significant computational burdens in computing the response of atmospheric concentrations to changes in emissions profiles. By integrating a reduced form of a fully coupled atmospheric model within a unit commitment optimization model, we allow, for the first time to our knowledge, a fully dynamical approach toward electricity planning that accurately and rapidly minimizes both cost and health impacts. The reduced-form model captures the response of spatially resolved air pollutant concentrations to changes in electricity-generating plant emissions on an hourly basis with accuracy comparable to a comprehensive air quality model. The integrated model allows for the inclusion of human health impacts into cost-based decisions for power plant operation. We use the new capability in a case study of the state of Georgia over the years of 2004-2011, and show that a shift in utilization among existing power plants during selected hourly periods could have provided a health cost savings of $175.9 million dollars for an additional electricity generation cost of $83.6 million in 2007 US dollars (USD2007). The case study illustrates how air pollutant health impacts can be cost-effectively minimized by intelligently modulating power plant operations over multihour periods, without implementing additional emissions control technologies.

  17. Technology collaboration

    Energy Technology Data Exchange (ETDEWEB)

    Thomas, Jacob [Halliburton (Brazil)

    2011-07-01

    The aim of this paper is to present Halliburton's Brazilian technology center. Halliburton has technology centers in the United States, Saudi Arabia, India, Singapore and Brazil, all of which aim at delivering accelerated innovation in the oil sector. The technology centers engage in research and development activities with the help of various universities and in collaboration with the customer or supplier. The Halliburton Brazil technology center provides its customers with timely research and development solutions for enhancing recovery and mitigating reservoir uncertainty; they are specialized in finding solutions for pre- and post-salt carbonate drilling and in the enhancement of production from mature fields. This presentation showcased the work carried out by the Halliburton Brazil technology center to help customers develop their deepwater field activities.

  18. Sensemaking technology

    DEFF Research Database (Denmark)

    Madsen, Charlotte Øland

    Research objective: The object of the LOK research project is to gain a better understanding of the technological strategic processes in organisations by using the concept/metaphor of sensemaking. The project will investigate the technological strategies in organisations in order to gain a deeper...... understanding of the cognitive competencies and barriers towards implementing new technology in organisations. The research will therefore concentrate on researching the development process in the organisation's perception of the external environmental elements of customers, suppliers, competitors, internal...... and external technology and legislation and the internal environmental elements of structure, power relations and political arenas. All of these variables have influence on which/how technologies are implemented thus creating different outcomes all depending on the social dynamics that are triggered by changes...

  19. Impact of Robotics and Geospatial Technology Interventions on Youth STEM Learning and Attitudes

    Science.gov (United States)

    Nugent, Gwen; Barker, Bradley; Grandgenett, Neal; Adamchuk, Viacheslav I.

    2010-01-01

    This study examined the impact of robotics and geospatial technologies interventions on middle school youth's learning of and attitudes toward science, technology, engineering, and mathematics (STEM). Two interventions were tested. The first was a 40-hour intensive robotics/GPS/GIS summer camp; the second was a 3-hour event modeled on the camp…

  20. HYPERCONNECTED YOUTH. COMMUNICATION AND VITUAL SOCIABILITY CASE STUDY ABOUT DISCONNECTION IN MEDIA FOR 24 HOURS IN SPANISH COLLEGE STUDENTS

    Directory of Open Access Journals (Sweden)

    María Dolores Cáceres Zapatero

    2014-11-01

    Full Text Available This collaboration presents the results of a study conducted with 190 college students who had a 24 hours media disconnection experience. The aim was to know the feelings experienced and how the situation affected their interpersonal and communication relationships. We wanted that students could learn, reflect and analyze their own communication habits in order to identify opportunities, challenges and risks; and also become aware of their dependence on media every day. The work tried to promote responsible use of the Internet and other media. Young people were invited to express, through a questionnaire, their feelings. Answers were coded and processed with SPSS software. The results show that hyperconnection is their way of relating and being in the world, that its absence causes discomfort and technologically mediated communication has replaced a major part of the face to face communication.

  1. Successful Heart Transplant after Ten Hours Out-of-body Time using the TransMedics Organ Care System.

    Science.gov (United States)

    Stamp, Nikki L; Shah, Amit; Vincent, Viji; Wright, Brian; Wood, Clare; Pavey, Warren; Cokis, Chris; Chih, Sharon; Dembo, Lawrence; Larbalestier, Rob

    2015-06-01

    We report the successful transplantation of a heart following an out-of-body time of 611 minutes into a recipient with dilated cardiomyopathy and left ventricular assist device implant. Our patient was urgently waiting for a cardiac transplant whilst receiving LVAD support. Recurrent VF and repeated AICD shocks necessitated this action. Although requiring ECMO and inotropic support in the first 17 hours post-transplant, the patient was discharged from hospital on day 15 post-transplant with normal cardiac function. We report some of the salient points of the process and discuss the utility of this technology to an Australian transplant unit. Crown Copyright © 2015. Published by Elsevier B.V. All rights reserved.

  2. New management strategy for fluid resuscitation: quantifying volume in the first 48 hours after burn injury.

    Science.gov (United States)

    Mitchell, Katrina B; Khalil, Elie; Brennan, Ann; Shao, Huibo; Rabbitts, Angela; Leahy, Nicole E; Yurt, Roger W; Gallagher, James J

    2013-01-01

    This study evaluated a 24-hour resuscitation protocol, established a formula to quantify resuscitation volume for the second 24 hours, described the relationship between the first and second 24 hours, and identified which patients required high volumes. A protocol for patients with burn >15% TBSA was implemented in 2009. Initial fluid was based on the Parkland calculation and adjusted to meet a goal urine output. Protocol compliance was defined as appropriate fluid titration to maintain urine output. Resuscitation ratio in the second 24 hours was tabulated as total fluid /(evaporative loss + maintenance fluid + estimated colloid). Data were collected prospectively from 2009 to 2011. A Wilcoxon rank test compared differences between groups. Regression analyses analyzed volume administered. P burn >15% TBSA met criteria for inclusion. Mean age, burn size, and resuscitation volumes in the first and second 24 hours (mean + SD) were 47+ 20.7 years, 29.9 + 14.6% TBSA, 7.4 + 3.7 ml/kg/% TBSA, and a ratio of 1.9 times expected volume (SD, 1.3), respectively. Protocol compliance was 34%. Intubation, older age, and increased narcotic administration correlated with higher resuscitation volumes. A higher resuscitation volume in the first 24 hours significantly correlated with a higher resuscitation volume in the second 24 hours (P < .001). In conclusion, there is a significant relationship between fluid administration in the first and second 24 hours of resuscitation; intubation, older age, and narcotics correlate with higher volumes. A formula for observed/expected volumes in the second 24 hours is total fluid/(evaporative loss + maintenance fluid +estimated colloid).

  3. Does 6 Hours of Contact With Alginate Impression Material Affect Dental Cast Properties?

    Science.gov (United States)

    Ibrahim, Amna Adam; Alhajj, Mohammed Nasser; Khalifa, Nadia; Gilada, Magdi Wadie

    2017-06-01

    Alginate impression (irreversible hydrocolloid) material is commonly used in dental practice because it is easy to mix, low in cost, and well tolerated by patients. The material is not dimensionally stable, however; thus, it is necessary to pour the impression immediately after the molding is accomplished, or within 60 minutes if the impression is kept in 100% humidity. Excessive contact of the alginate impression with the cast model over time may affect the model's properties. In this study, the authors tested the effect of contact time between an alginate impression and type III dental stone on cast model properties. Sixty-seven cast models were obtained from a stainless steel cylinder by using irreversible hydrocolloid impression material and type III dental stone. Thirty-seven cast models were separated from the impression after 1 hour (control group) and 30 cast models were separated after 6 hours (study group). The samples were evaluated under light microscope for surface details and measured by digital caliper for dimensional stability. An indentation on the cast was made and the depth of the indentation was then measured with a digital caliper to measure hardness. The dimensional stability of the cast models was not affected when contact time was increased from 1 hour to 6 hours (P = .507). Surface details did not deteriorate when contact time was increased, as all of the samples could reproduce all details after the 1-hour and 6-hour interval periods. However, hardness was greater after 1 hour of contact time (P = .001) than after 6 hours of contact time. In conclusion, contact between alginate impression material and type III dental stone up to 6 hours did not affect the dimensional stability and richness of the surface; hardness, though, was significantly affected.

  4. The Risk of Developing Diabetes in Association With Long Working Hours Differs by Shift Work Schedules.

    Science.gov (United States)

    Bannai, Akira; Yoshioka, Eiji; Saijo, Yasuaki; Sasaki, Sachiko; Kishi, Reiko; Tamakoshi, Akiko

    2016-09-05

    The impact of long working hours on diabetes is controversial; however, shift work is known to increase the risk of diabetes. This study aimed to investigate the association between long working hours and diabetes among civil servants in Japan separately by shift work schedules. A prospective cohort study was conducted from April 2003 to March 2009. A total of 3195 men aged ≥35 years who underwent an annual health checkup at baseline were analyzed by shift work schedules (2371 non-shift workers and 824 shift workers). Self-reported working hours were categorized as 35-44 and ≥45 hours per week. The incidence of diabetes was confirmed by fasting plasma glucose concentration ≥126 mg/dL and/or self-reported medical diagnosis of diabetes at the annual checkup. A Cox proportional model was used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs) for developing diabetes associated with long working hours. The median follow-up period of non-shift and shift workers was 5.0 and 4.9 years, respectively. During this period, 138 non-shift workers and 46 shift workers developed diabetes. A decreased HR was found among non-shift workers working ≥45 hours per week (HR 0.84; 95% CI, 0.57-1.24); however, shift workers working ≥45 hours per week had a significantly increased risk of diabetes (HR 2.43; 95% CI, 1.21-5.10) compared with those working 35-44 hours per week. An analysis restricted to non-clerical workers also showed similar results. The risk of diabetes associated with long working hours differed by shift work schedules.

  5. Does treatment of ruptured intracranial aneurysms within 24 hours improve clinical outcome?

    Science.gov (United States)

    Phillips, Timothy J; Dowling, Richard J; Yan, Bernard; Laidlaw, John D; Mitchell, Peter J

    2011-07-01

    The purpose of this study was to analyze whether treating ruptured intracranial aneurysms within 24 hours of subarachnoid hemorrhage improves clinical outcome. An 11-year database of consecutive ruptured intracranial aneurysms treated with endovascular coiling or craniotomy and clipping was analyzed. Outcome was measured by the modified Rankin Scale at 6 months. Our policy is to treat all cases within 24 hours of subarachnoid hemorrhage. Treatment delays are due to nonclinical logistical factors. Two hundred thirty cases were coiled or clipped within 24 hours of subarachnoid hemorrhage and 229 at >24 hours. No difference in age, gender, smoking, family history of subarachnoid hemorrhage, aneurysm size, or aneurysm location was found between the groups. Poor World Federation of Neurological Surgeons clinical grade patients were overrepresented in the ultra-early group. Increasing age and higher World Federation of Neurological Surgeons clinical grade were predictors of poor outcome. Eight point zero percent (16 of 199) of cases treated within 24 hours of SAH (ultra-early) were dependent or dead at 6 months compared with 14.4% (30 of 209) of those treated at >24 hours post-SAH (delayed; (χ2, P0.044) [corrected]. A total of 3.5% of cases coiled within 24 hours were dependent or dead at 6 months compared with 12.5% of cases coiled at 1 to 3 days, an 82% relative risk reduction and a 10.2% absolute risk reduction (χ2, P=0.040). These groups did not differ in age, World Federation of Neurological Surgeons clinical grade, aneurysm size, or aneurysm location. Treatment of ruptured aneurysms within 24 hours is associated with improved clinical outcomes compared with treatment at >24 hours. The benefit is more pronounced for coiling than clipping.

  6. Impact of gender and personality traits on preferred pricing of public transport in rush hours

    DEFF Research Database (Denmark)

    Pavlicek, Antonin; Sudzina, Frantisek

    2017-01-01

    the load. But it is possible to argue that prices should be lower in rush hours because means of public transportation tend to be full, i.e. there is a lower comfort of travelling, possibly even taking longer to travel the same distance. It is also possible to argue that the prices should be the same all......Price is an inherent part of marketing mix. It is used for multiple reasons, from skimming consumer's surplus to antimarketing. In public transport, higher prices are often used in rush hours. The logic is to give an incentive to customers to travel outside rush hours, thus more evenly distribute...

  7. Physiological responses to four hours of low-level repetitive work

    DEFF Research Database (Denmark)

    Garde, A Helene; Hansen, Åse Marie; Jensen, Bente R

    2003-01-01

    OBJECTIVES: The study investigated physiological responses to 4 hours of standardized low-level repetitive work. It was hypothesized that accumulative effects not observed after 1 hour could be found after 4 hours of repetitive work. METHODS: Ten healthy women performed intermittent (5 seconds + 5...... seconds) handgrip contractions at 10% of the maximal voluntary contraction combined with mental demands for concentration and attention. Muscle activity in the working forearm muscles, cardiovascular responses, and concentrations of biomarkers in biological fluids were recorded along with exerted force...

  8. A New Lagrangian Relaxation Method Considering Previous Hour Scheduling for Unit Commitment Problem

    Science.gov (United States)

    Khorasani, H.; Rashidinejad, M.; Purakbari-Kasmaie, M.; Abdollahi, A.

    2009-08-01

    Generation scheduling is a crucial challenge in power systems especially under new environment of liberalization of electricity industry. A new Lagrangian relaxation method for unit commitment (UC) has been presented for solving generation scheduling problem. This paper focuses on the economical aspect of UC problem, while the previous hour scheduling as a very important issue is studied. In this paper generation scheduling of present hour has been conducted by considering the previous hour scheduling. The impacts of hot/cold start-up cost have been taken in to account in this paper. Case studies and numerical analysis presents significant outcomes while it demonstrates the effectiveness of the proposed method.

  9. Influence on working hours among shift workers and effects on sleep quality - An intervention study

    DEFF Research Database (Denmark)

    Garde, Anne Helene; Nabe-Nielsen, Kirsten; Aust, Birgit

    2011-01-01

    The aim of the present intervention study was to examine if increased influence on working hours among shift workers led to better sleep quality. 391 employees were categorized into groups based on the performed activities: High (self-rostering), moderate (education and/or policy for working hours......), and low intensity intervention (meetings and discussions) and reference. Sleep quality was assessed by Karolinska Sleep Questionnaire (KSQ) at baseline and follow-up (12 months). To elucidate the process of the intervention interviews were conducted. Influence on one's own working hours increased only...

  10. Ergonomics technology

    Science.gov (United States)

    Jones, W. L.

    1977-01-01

    Major areas of research and development in ergonomics technology for space environments are discussed. Attention is given to possible applications of the technology developed by NASA in industrial settings. A group of mass spectrometers for gas analysis capable of fully automatic operation has been developed for atmosphere control on spacecraft; a version for industrial use has been constructed. Advances have been made in personal cooling technology, remote monitoring of medical information, and aerosol particle control. Experience gained by NASA during the design and development of portable life support units has recently been applied to improve breathing equipment used by fire fighters.

  11. Computed tomography to operating room in less than 3 hours minimizes complications from appendicitis.

    Science.gov (United States)

    Harmon, Laura A; Davis, Matthew L; Jupiter, Daniel C; Frazee, Richard C; Regner, Justin L

    2016-08-01

    The aim of our study is to select patients with nonperforated appendicitis verified by computed tomography (CT) scan and to determine if there is a temporal component to perforation. A retrospective cohort study of patients with CT scan evidence of nonperforated appendicitis from 2007 to 2012. 411 patients, aged 39.7 ± 16.25 years (47.5% male) were included in the study. 330 patients (80.3%) were nonperforated at surgery. Analysis of 3-hour intervals from CT scan to operating room (OR) revealed an absolute reduction in the rate of perforation from 27% at the 6- to 9-hour interval, to 17% and 10% at the 3- to 6-hour and 0- to 3-hour intervals, respectively, (P appendicitis patients (P appendicitis had shorter hospitalization and fewer postoperative wound infections. Copyright © 2016 Elsevier Inc. All rights reserved.

  12. VG1 J/S/SS PWS RESAMP SPECTRUM ANALYZER HOUR AVG V1.0

    Data.gov (United States)

    National Aeronautics and Space Administration — This data set contains hourly RMS averages and peaks of calibrated electric field measurements taken by the spectrum analyzer component of the Plasma Wave System...

  13. BOREAS AFM-08 ECMWF Hourly Surface and Upper Air Data for the SSA and NSA

    Data.gov (United States)

    National Aeronautics and Space Administration — ABSTRACT: Hourly data from the ECMWF operational model from below the surface to the top of the atmosphere, including the model fluxes at the surface, at Candle...

  14. TCTE Level 3 Total Solar Irradiance 6-Hour Means V002

    Data.gov (United States)

    National Aeronautics and Space Administration — The Total Solar Irradiance (TSI) Calibration Transfer Experiment (TCTE) data set TCTE3TSI6 contains 6-hour averaged total solar irradiance (a.k.a solar constant)...

  15. BOREAS AFM-08 ECMWF Hourly Surface and Upper Air Data for the SSA and NSA

    Data.gov (United States)

    National Aeronautics and Space Administration — Hourly data from the ECMWF operational model from below the surface to the top of the atmosphere, including the model fluxes at the surface, at Candle Lake,...

  16. Office workers' objectively measured sedentary behavior and physical activity during and outside working hours.

    Science.gov (United States)

    Clemes, Stacy A; O'Connell, Sophie E; Edwardson, Charlotte L

    2014-03-01

    To examine objectively determined sedentary behavior and physical activity (PA) during and outside working hours in full-time office workers. A total of 170 participants wore an ActiGraph GT1M accelerometer for 7 days. Time spent sedentary (working hours and nonworking hours) and nonworkdays. Participants accumulated significantly higher levels of sedentary behavior (68% vs 60%) and lower levels of light-intensity activity (28% vs 36%) on workdays in comparison with nonworkdays. Up to 71% of working hours were spent sedentary. Individuals who were most sedentary at work were also more sedentary outside work. Those who are most sedentary at work do not compensate by increasing their PA or reducing their sedentary time outside work. Occupational interventions should address workplace and leisure-time sedentary behavior.

  17. PM1 2-hour refined Near Real Time (NRT) Spacecraft Attitude data (MODIS Ancillary Data)

    Data.gov (United States)

    National Aeronautics and Space Administration — PM1ATTNR is the Aqua 2-hour spacecraft refined attitude data file in native format. The file name format is the following: PM1ATTNR.Pyyyyddd.hhmm.vvv.yyyydddhhmmss...

  18. The Effect of Fatherhood on Employment Hours: Variation by Birth Timing, Marriage and Coresidence.

    Science.gov (United States)

    Weinshenker, Matthew

    2015-01-01

    Drawing on the life course paradigm, I assess how the effect of fatherhood on employment hours varies by age of becoming a parent and time elapsed since the birth. Using the National Longitudinal Survey of Youth - 1979 Cohort from 1979 to 2002 (N = 28,514 observations), separate effects are estimated based on fathers' marital status and co-residence with own children. Only unmarried men who became fathers before 24 work longer hours immediately after a first birth, but in the long run, most early fathers work fewer hours as a result of parenthood. Over time, unmarried but coresident men who became fathers between 24 and 29 increase their hours, as do married, coresident men who delayed fatherhood until 30 or older. However, the latter increase is moderated by support for egalitarian gender roles. The findings shed light on the contemporary transition to adulthood and on men's work-family balance.

  19. 78 FR 26104 - Hours of Service of Drivers: Application for Exemption; Timberdoodle Company

    Science.gov (United States)

    2013-05-03

    ... Federal Motor Carrier Safety Administration Hours of Service of Drivers: Application for Exemption; Timberdoodle Company AGENCY: Federal Motor Carrier Safety Administration (FMCSA), DOT. ACTION: Notice of application for exemption; request for comments. SUMMARY: FMCSA announces that Timberdoodle Company...

  20. SORCE XPS Level 3 Solar Spectral Irradiance 6-Hour Means V010

    Data.gov (United States)

    National Aeronautics and Space Administration — The SORCE XUV Photometer System (XPS) Solar Spectral Irradiance (SSI) 6-Hour Data Product SOR3XPS6 contains solar XUV irradiances in the 0.1 to 27 nm range, as well...

  1. Gene expression in human peripheral blood 48 hours after exposure to ionizing radiation

    Data.gov (United States)

    National Aeronautics and Space Administration — Analysis of human peripheral blood 48 hours after irradiation ex vivo with graded doses of gamma rays. Results have been used in building and testing classifiers to...

  2. Hourly distributions of the diffuse fraction of global solar irradiation in Cordoba (Spain)

    Energy Technology Data Exchange (ETDEWEB)

    Posadillo, R.; Lopez Luque, R. [Grupo de Investigacion de Fisica para las Energias y Recursos Renovables, Dpto. de Fisica Aplicada/UCO, Edificio C2 Campus de Rabanales, 14071 Cordoba (Spain)

    2009-02-15

    Hourly global irradiations on tilted planes are required for dimensioning PV systems. However, for most sites, only global irradiations on a horizontal plane are available, and, given that to calculate the global irradiation on inclined planes the first step is to determine the diffuse component and this is not collected, we have studied the behaviour of the diffuse component on an hourly basis. Most parametrization models for the derivation of hourly diffuse irradiance from hourly global irradiance involve the clearness index, a parameter that implicitly includes solar altitude. The present paper has focused on the possibility of also including ''mean solar altitude anti {alpha}'' explicitly as a parameter in addition to the clearness index. Several analytical models are proposed, validated and compared here, using solar data collected on our station located in Cordoba (Spain). (author)

  3. Deregulating Overtime Hours Restrictions on Women and its Effects on Female Employment

    DEFF Research Database (Denmark)

    Kato, Takao; Kodama, Naomi

    2017-01-01

    a week; and 150 hours a year. The 1985 Amendments exempted a variety of occupations and industries from such an overtime restriction on women. Applying a difference-in-difference model to census data, we find causal evidence pointing to the positive effect of this particular piece of labour market......This paper provides novel evidence on the effect of deregulating overtime hours restrictions on women by using the 1985 Amendments to the Labour Standards Act (LSA) in Japan as a natural experiment. The original LSA of 1947 prohibited women from working overtime exceeding two hours a day; six hours......, we use quantile regressions and find that for jobs with more rapidly growing proportion of female employment, the effect of the exemption from the overtime work restriction on women is larger....

  4. Chronic Disease Risks From Exposure to Long-Hour Work Schedules Over a 32-Year Period.

    Science.gov (United States)

    Dembe, Allard E; Yao, Xiaoxi

    2016-09-01

    This study aims at evaluating the chronic disease risk related to prolonged work in long-hour schedules for eight major chronic diseases: heart disease, non-skin cancer, arthritis, diabetes, chronic lung disease, asthma, chronic depression, and hypertension. The study used data from the National Longitudinal Survey of Youth, 1979 covering 32 years of job history (1978 to 2009) for 7492 respondents. Logistic regression analyses were performed to test the relationship between average weekly work hours, and the reported prevalence of those conditions for each individual. Regularly working long hours over 32 years was significantly associated with elevated risks of heart disease, non-skin cancer, arthritis, and diabetes. The observed risk was much larger among women than among men. Working long-hour schedules over many years increases the risk for some specific chronic diseases, especially for women.

  5. Poor safety climate, long work hours, and musculoskeletal discomfort among Latino horse farm workers.

    Science.gov (United States)

    Swanberg, Jennifer; Clouser, Jessica Miller; Gan, Wenqi; Flunker, John C; Westneat, Susan; Browning, Steven R

    2017-09-03

    This study investigated the prevalence of self-reported musculoskeletal discomfort (MSD) and work-related factors associated with elevated MSD among Latino thoroughbred farm workers. Participants (N = 225) were recruited using a community-based purposive sampling approach to participate in in-person interviews. Of these workers, 85% experienced MSD. MSD was divided into tertiles; the upper tertile was defined as elevated. Multivariable Poisson regression revealed associations between any elevated MSD and longer tenure on horse farms, longer work hours, and poor safety climate. Elevated neck/back MSD was associated with longer tenure, longer work hours, and poor safety climate. Elevated upper extremity MSD was associated with age and poor safety climate. Elevated lower extremity MSD was associated with longer tenure, longer work hours, and being female. Musculoskeletal discomfort is common among these workers. Improving safety climate and minimizing long work hours is recommended.

  6. Spatio-temporal analysis of sub-hourly rainfall over Mumbai, India: Is ...

    Indian Academy of Sciences (India)

    temporal analysis of sub-hourly rainfall over Mumbai, India: Is statistical forecasting futile? Jitendra Singh Sheeba Sekharan Subhankar Karmakar Subimal Ghosh P E Zope T I Eldho. Volume 126 Issue 3 April 2017 Article ID 38 ...

  7. Sub-hourly changes in biogeochemical properties in surface waters of Zuari estuary, Goa

    Digital Repository Service at National Institute of Oceanography (India)

    Anand, S.S.; Anju, K.J.; Mathew, D.; DileepKumar, M.

    -hourly changes in surface waters dissolved oxygen, nutrients, and pigments are measurable and significant in an estuarine system. Tidal circulation has been found to strongly influence the observed changes and has implications to material fluxes in and out...

  8. Four-Hour Dives with Exercise While Breathing Oxygen Partial Pressure of 1.3 ATM

    National Research Council Canada - National Science Library

    Shykoff, B

    2006-01-01

    ...) or less but does not address the possible accumulation of effects over multiple days. We have conducted experimental four-hour dives with oxygen partial pressure (Po2) of approximately 1.4 atmospheres (atm...

  9. Three-Hour Dives with Exercise While Breathing Oxygen Partial Pressure of 1.3 ATM

    National Research Council Canada - National Science Library

    Shykoff, B

    2007-01-01

    ...) or less but does not address the possible accumulation of effects over multiple days. When we conducted experimental four-hour dives with oxygen partial pressure (Po2) of approximately 1.4 atmospheres (atm...

  10. Forecasting hourly patient visits in the emergency department to counteract crowding

    DEFF Research Database (Denmark)

    Hertzum, Morten

    2017-01-01

    Background: Emergency department (ED) crowding is a frequent problem that causes prolonged waiting and increased risk of adverse events. While the number of daily and monthly patient arrivals can be forecasted with good accuracy, ED clinicians need hourly forecasts in their ongoing scheduling...... and rescheduling of their work. Objective: We aim to assess whether the hour-by-hour evolution in patient arrivals and ED occupancy can be accurately forecasted using calendar variables. Method: We obtained data about the patient visits at four Danish EDs from January 2012 to January 2015, a total of 393717 ED...... visits. The data for 2012-2014 were used to create linear regression models, autoregressive integrated moving average (ARIMA) models, and – for purposes of comparison – naïve models of hourly patient arrivals and ED occupancy. Using the models, patient arrivals and ED occupancy were forecasted for every...

  11. Geomagnetic Absolute Mean Values at Hourly Intervals from 220 Observatories Worldwide

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This file is comprised of absolute mean hourly values of the geomagnetic components D, H and Z or X, Y and Z. These values, on magnetic tape, are available from...

  12. Stability, precision, and near-24-hour period of the human circadian pacemaker

    Science.gov (United States)

    Czeisler, C. A.; Duffy, J. F.; Shanahan, T. L.; Brown, E. N.; Mitchell, J. F.; Rimmer, D. W.; Ronda, J. M.; Silva, E. J.; Allan, J. S.; Emens, J. S.; hide

    1999-01-01

    Regulation of circadian period in humans was thought to differ from that of other species, with the period of the activity rhythm reported to range from 13 to 65 hours (median 25.2 hours) and the period of the body temperature rhythm reported to average 25 hours in adulthood, and to shorten with age. However, those observations were based on studies of humans exposed to light levels sufficient to confound circadian period estimation. Precise estimation of the periods of the endogenous circadian rhythms of melatonin, core body temperature, and cortisol in healthy young and older individuals living in carefully controlled lighting conditions has now revealed that the intrinsic period of the human circadian pacemaker averages 24.18 hours in both age groups, with a tight distribution consistent with other species. These findings have important implications for understanding the pathophysiology of disrupted sleep in older people.

  13. BOREAS AES Canadian Hourly and Daily Surface Meteorological Data, R1

    Data.gov (United States)

    National Aeronautics and Space Administration — This data set contains hourly and daily meteorological data from 23 meteorological stations across Canada from January 1975 to January 1997. The surface meteorology...

  14. Relationship of work hours with selected health behaviors and academic progress among a college student cohort.

    Science.gov (United States)

    Miller, Kim; Danner, Fred; Staten, Ruth

    2008-01-01

    Approximately 57% of college students work while attending school. Health risks related to working while in college have not been widely studied. The authors' purpose in this study was to determine associations between hours worked, binge drinking, sleep habits, and academic performance among a college student cohort. The authors randomly selected a sample of 1,700 undergraduates from a southeastern US university and mailed to them a survey requesting a variety of self-reported health behaviors and hours worked. A total of 903 completed questionnaires were received, indicating a response rate of 57.3%. Binge drinking, less sleep, and lower academic performance were significantly associated with working 20 or more hours per week. Those variables were not associated with working fewer than 20 hours per week. Although administrators and others in higher education are aware of the impact of economics on a school's ability to operate, they may not be aware of the impact on students' health.

  15. Ground-Based Global Navigation Satellite System Combined Broadcast Ephemeris Data (hourly files) from NASA CDDIS

    Data.gov (United States)

    National Aeronautics and Space Administration — This dataset consists of ground-based Global Navigation Satellite System (GNSS) Combined Broadcast Ephemeris Data (hourly files of all distinct navigation messages...

  16. The hourly life cycle carbon footprint of electricity generation in Belgium, bringing a temporal resolution in life cycle assessment

    International Nuclear Information System (INIS)

    Messagie, Maarten; Mertens, Jan; Oliveira, Luis; Rangaraju, Surendraprabu; Sanfelix, Javier; Coosemans, Thierry; Van Mierlo, Joeri; Macharis, Cathy

    2014-01-01

    Highlights: • This paper brings a temporal resolution in LCA of electricity generation. • Dynamic life cycle assessment of electricity production in Belgium for 2011. • The overall average GWP per kW h is 0.184 kg CO 2 eq/kW h. • The carbon footprint of Belgian electricity ranges from 0.102 to 0.262 kg CO 2 eq/kW h. - Abstract: In the booming research on the environmental footprint of, for example, electrical vehicles, heat pumps and other (smart) electricity consuming appliances, there is a clear need to know the hourly CO 2 content of one kW h of electricity. Since the CO 2 footprint of electricity can vary every hour; the footprint of for example an electric vehicle is influenced by the time when the vehicle is charged. With the availability of the hourly CO 2 content of one kW h, a decision support tool is provided to fully exploit the advantages of a future smart grid. In this paper, the GWP (Global Warming Potential) per kW h for each hour of the year is calculated for Belgium using a Life Cycle Assessment (LCA) approach. This enables evaluating the influence of the electricity demand on the greenhouse gas emissions. Because of the LCA approach, the CO 2 equivalent content does not only reflect activities related to the production of the electricity within a power plant, but includes carbon emissions related to the building of the infrastructure and the fuel supply chain. The considered feedstocks are nuclear combustible, oil, coal, natural gas, biowaste, blast furnace gas, and wood. Furthermore, renewable electricity production technologies like photovoltaic cells, hydro installations and wind turbines are covered by the research. The production of the wind turbines and solar panels is more carbon intensive (expressed per generated kW h of electricity) than the production of other conventional power plants, due to the lower electricity output. The overall average GWP per kW h is 0.184 kg CO 2 eq/kW h. Throughout the 2011 this value ranges from a

  17. Prediction of Hourly Particulate Matter Concentrations in Chiangmai, Thailand Using MODIS Aerosol Optical Depth and Ground-Based Meteorological Data

    Directory of Open Access Journals (Sweden)

    Thongchai Kanabkaew

    2013-07-01

    Full Text Available Various extreme events recorded over the world have been recognized as scientific-based evidence from possible climate change and variability. The incidence of increasing forest fires and intensive agricultural field burning in Chiangmai and Northern Thailand due to favor conditions may also due to a likely increase of droughts caused by the changing climate. Smog from biomass burning, particularly particulate matter (PM seriously affects health and the environment. Lack and sparse of ground monitors may cause unreliability for warning information. Satellite remote sensing is now a promising technology for air quality prediction at ground level. This study was to investigate the statistical model for predicting PM concentration using satellite data. Aerosol optical depth (AOD data were gathered from MODIS-Terra platform while hourly PM2.5 and PM10 data were collected from the Pollution Control Department. The relationship between AOD and hourly PM over Chiangmai was addressed by Model I-Simple linear regression and Model II-Multiple linear regression with ground-based meteorological data correction. The data used for the statistical analyses were from smog period in 2012 (January-April. Results revealed that AOD and hourly PM in Model I were positively correlated with the coefficient of determination (R2 of 0.22 and 0.21, respectively for PM2.5 and PM10. The relationship between AOD and hourly PM was improved significantly when correcting with relative humidity and temperature data. The model II gave R2 of 0.77 and 0.71, respectively for PM2.5 and PM10. To investigate the validity of model, the regression equation obtained from Model II was then applied with smog data over Chiangmai in March 2007. The model performed reasonably with R2 of 0.74. The model applications would provide supplementary data to other areas with similar conditions and without air quality monitoring stations, and reduce false warning the level of air pollution associated

  18. The Impact of Occupational Status on Household Chore Hours among Dual Earner Couples

    Directory of Open Access Journals (Sweden)

    Megumi Omori

    2009-06-01

    Full Text Available Previous studies on the who does what about routine chores in the household have tended to neglect the occupational structure and its influence on the amount of time spent on housework. Using NSFH data, it is found that married couples' household chore hours vary by their occupational status: couples in higher status occupations spend significantly fewer hours on household chores as compared to their counterparts in lower status occupations.

  19. Canadian Plastic Surgery Resident Work Hour Restrictions: Practices and Perceptions of Residents and Program Directors.

    Science.gov (United States)

    McInnes, Colin W; Vorstenbosch, Joshua; Chard, Ryan; Logsetty, Sarvesh; Buchel, Edward W; Islur, Avinash

    2018-02-01

    The impact of resident work hour restrictions on training and patient care remains a highly controversial topic, and to date, there lacks a formal assessment as it pertains to Canadian plastic surgery residents. To characterize the work hour profile of Canadian plastic surgery residents and assess the perspectives of residents and program directors regarding work hour restrictions related to surgical competency, resident wellness, and patient safety. An anonymous online survey developed by the authors was sent to all Canadian plastic surgery residents and program directors. Basic summary statistics were calculated. Eighty (53%) residents and 10 (77%) program directors responded. Residents reported working an average of 73 hours in hospital per week with 8 call shifts per month and sleep 4.7 hours/night while on call. Most residents (88%) reported averaging 0 post-call days off per month and 61% will work post-call without any sleep. The majority want the option of working post-call (63%) and oppose an 80-hour weekly maximum (77%). Surgical and medical errors attributed to post-call fatigue were self-reported by 26% and 49% of residents, respectively. Residents and program directors expressed concern about the ability to master surgical skills without working post-call. The majority of respondents oppose duty hour restrictions. The reason is likely multifactorial, including the desire of residents to meet perceived expectations and to master their surgical skills while supervised. If duty hour restrictions are aggressively implemented, many respondents feel that an increased duration of training may be necessary.

  20. Precarious pedagogies? The impact of casual and zero-hour contracts in Higher Education

    OpenAIRE

    Lopes, A.; Dewan, I.

    2014-01-01

    Precarious work is associated with and characterizes the effects of neoliberal policy—the transference of economic risk onto workers, the erosion of workers’ rights, the flexibilization and casualization of work contracts, self-responsibility, financial insecurity, and emotional stress. In the Higher Education (HE) sector, the number of insecure academic jobs, especially zero-hour contracts for hourly paid teaching and short-term contract research, has grown exponentially in recent years in r...