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Journal articles on the topic 'Yearly mean'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Valdez-Cepeda, Ricardo D., Blanca Mendoza, Rosa Díaz-Sandoval, José Valdés-Galicia, José D. López-Martínez, and Enrique Martínez-Rubín de Celis. "Power-Spectrum Behavior of Yearly Mean Grain Yields." Fractals 11, no. 03 (2003): 295–301. http://dx.doi.org/10.1142/s0218348x03002208.

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Advanced statistical approaches have been applied to determine the temporal scaling-invariance laws in annual mean yields registered in Mexico during the period 1897–1999. When the maize, bean, wheat and rice series are treated as self-affine profiles through power spectrum analysis, the temporal fluctuation f-β is detected in each case for time scales of 2 to 103 years. β values (p < 0.0001) of -1.84 ± 0.15, -1.71 ± 0.218, -1.62 ± 0.194 and -1.7 ± 0.139 for maize, bean, wheat and rice profiles, respectively, suggest that short-term variation is important and are influencing the dynamic evo

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VALDEZ-CEPEDA, RICARDO DAVID, OLIVIA DELGADILLO-RUIZ, RAFAEL MAGALLANES-QUINTANAR, et al. "SCALE-INVARIANCE OF NORMALIZED YEARLY MEAN GRAIN YIELD ANOMALY SERIES." Advances in Complex Systems 10, no. 03 (2007): 395–412. http://dx.doi.org/10.1142/s0219525907001161.

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In crop science, tools of non-linear dynamics, fractals, chaos, intermittency and self-organized criticality may be employed and applied to the analysis of spatial variability and temporal behavior of agro-meteorological variables, soil properties, plant attributes, commercial yields, and prices of the agricultural products in order to gain knowledge about underlying complex processes. A search on the occurrence of particular scaling laws in Mexico's normalized yearly mean grain yield anomaly series of maize (Zea mays L.), beans (Phaseolus vulgaris L.), wheat (Triticum aestivum L.) and rice (O

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Jain, Vikas, Max Lundeen, Israel Byrd, Kent Lee, Michelle Um, and Taye Allred. "0597 Hypoglossal Nerve Stimulation Adherence Increasing Yearly." SLEEP 47, Supplement_1 (2024): A255. http://dx.doi.org/10.1093/sleep/zsae067.0597.

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Abstract Introduction Hypoglossal nerve stimulation (HGNS) for obstructive sleep apnea is a surgically implanted device that the patient starts with a button press on a short-range telemetry remote. The therapy ends after a programmable time period (default 8 hours) or the patient manually stops the therapy with another button press. Patients newly implanted with Inspire devices have been observed to use their therapy more than patients implanted in the past. To test the effect of time on adherence, we analyzed newly activated HGNS patients’ usage data year by year. Methods De-identified data

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Iz, H. Bâki. "Low-frequency fluctuations in the yearly misclosures of the global mean sea level budget during 1900–2018." Journal of Geodetic Science 12, no. 1 (2022): 55–64. http://dx.doi.org/10.1515/jogs-2022-0130.

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Abstract Sub- and super-harmonics of luni-solar forcing are proxies for the natural variations in sea levels observed at tide gauge stations with long records as demonstrated in earlier studies. This study also identified their signatures in the noisy yearly misclosures of the global mean sea level budget for the period 1900–2018. The analyses of the yearly misclosures revealed a temporal linear systematic error of 0.08 ± 0.02 mm/year, which is not explained by the budget components. The estimate is statistically significant (α = 0.05) but small in magnitude and accounts for only 11% (adjusted

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Kuang, Q., and Y. P. Wang. "SPATIAL-TEMPORAL CHARACTERISTICS OF THE AEROSOL OPTICAL DEPTH (AOD) DERIVED FROM LONGTERM (1980–2018) MERRA-2 OVER GUANGDONG." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-3/W9 (October 25, 2019): 103–8. http://dx.doi.org/10.5194/isprs-archives-xlii-3-w9-103-2019.

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Abstract. This paper presents and compares the aerosol optical depth (AOD) spatial-temporal characteristics over five subsets in different locations of Guangdong, as well as Hong Kong and Macau (GDHM) since reform and opening-up. By means of GIS analysis tools and subset the onward MERRA-2 monthly mean value aerosol reanalysis dataset to the size of study area, the results reveal that the yearly mean AOD over the whole GDHM ranged from 0.18 to 0.69 during 1980 to 2018. The field average of AOD in five chosen areas approached to 0.40 and appeared linearly increased at 0.0077 per year. All the f

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Gilgen, H., M. Wild, and A. Ohmura. "Means and Trends of Shortwave Irradiance at the Surface Estimated from Global Energy Balance Archive Data." Journal of Climate 11, no. 8 (1998): 2042–61. http://dx.doi.org/10.1175/1520-0442-11.8.2042.

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Abstract Means and trends of shortwave irradiance at the earth’s surface are calculated from pyranometer measurements stored in the Global Energy Balance Archive (GEBA) database. The GEBA database contains the most comprehensive set of shortwave irradiance monthly means. The relative random error of measurement is approximately 5% of a monthly mean in general and approximately 2% of a yearly mean. The shortwave irradiance yearly means are analyzed in a 2.5° × 2.5° grid. In average example grid cells in Europe (no large altitude differences, no coasts), the difference of shortwave irradiance ye

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Touazi, Mustapha, Jean Pierre Laborde, and Najat Bhiry. "Modelling rainfall-discharge at a mean inter-yearly scale in northern Algeria." Journal of Hydrology 296, no. 1-4 (2004): 179–91. http://dx.doi.org/10.1016/j.jhydrol.2004.03.030.

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Schulz, Horst, та Sigrid Härtling. "Biochemical Parameters as Biomarkers for the Early Recognition of Environmental Pollution on Scots Pine Trees. II. The Antioxidative Metabolites Ascorbic Acid, Glutathione, α-Tocopherol and the Enzymes Superoxide Dismutase and Glutathione Reductase". Zeitschrift für Naturforschung C 56, № 9-10 (2001): 767–80. http://dx.doi.org/10.1515/znc-2001-9-1015.

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AbstractField investigations with Scots pine trees (Pinus sylvestris L.) were performed in eastern Germany, where ambient SO2, NOx and O3 concentrations differed significantly in 1992-99 at three sites, namely Neuglobsow (yearly mean SO2 in 1992: 9 μg m-3), Taura (yearly mean SO2 in 1992: 54 μg m-3 and Rösa (yearly mean SO2 in 1992: 73 μg m-3). To investigate the effects of SO2, NOx and O3 on antioxidants (superoxide dismutase, ascorbic acid, glutathione, glutathione reductase, α-tocopherol) and pigments including chlorophyll fluorescence as well as visible damage symptoms in the form of needl

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L.O.Onundi, Otuogba Philips, and Oumarou M.B. "AN IMPROVEMENT ON THE SOBOYEJO AND NIGERIAN METEOROLOGICAL AGENCY WIND ISOPLETHS MAPS." Continental J. Engineering Sciences 4 (July 22, 2009): 12–19. https://doi.org/10.5281/zenodo.833693.

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The paper reviewed the useful details of the Soboyejo Isopleths map for wind speeds and the Nigerian Meteorological Agency wind Documentation maps produced for Nigeria. The research work discovered some discrepancies in the interpretations given to the data produced by the Agency. Efforts were made to correct the wrong interpretations and a factor that varies from 7.86 to 11.67 was recommended to conveniently convert the daily mean produced by the Nigerian Meteorological Agency to the yearly mean produced by Soboyejo. Alternatively, the researchers decided to find a homogeneous mathematical re

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Østvoll, Eirik, Ola Sunnergren, and Joacim Stalfors. "Does tonsillectomy reduce medical care visits for pharyngitis/tonsillitis in children and adults? Retrospective cohort study from Sweden." BMJ Open 9, no. 11 (2019): e033817. http://dx.doi.org/10.1136/bmjopen-2019-033817.

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ObjectiveTo assess the effectiveness of tonsillectomy/adenotonsillectomy in reducing medical care visits for pharyngitis or tonsillitis in children and adults with chronic/recurrent tonsillitis.DesignRetrospective cohort study.SettingData were retrieved from the VEGA register, a comprehensive regional cohort in Sweden.Participants1044 children (<15 years) and 2244 adults.InterventionTonsillectomy/adenotonsillectomy compared with no surgical treatment.Main outcome measuresChanges in yearly mean rates of medical care visits due to pharyngitis/tonsillitis.ResultsIn children, there was a signif

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Schlosser, Elisabeth. "Effects of seasonal variability of accumulation on yearly mean δ18O values in Antarctic snow". Journal of Glaciology 45, № 151 (1999): 463–68. http://dx.doi.org/10.3189/s0022143000001325.

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AbstractThe annual mean oxygen-isotope content of Antarctic snow is strongly influenced by the seasonal variability of accumulation. Since the annual mean δ18O value is frequently used to derive mean annual temperatures from ice cores, changes in atmospheric circulation pattern can lead to large errors in the deduced temperature record. At the German Antarctic wintering base, Neumayer, accumulation measurements have been carried out continuously over the last 16 years. Weekly readings of accumulation stakes combined with snow pits and shallow firn cores are used to investigate the influence of

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Schlosser, Elisabeth. "Effects of seasonal variability of accumulation on yearly mean δ18O values in Antarctic snow". Journal of Glaciology 45, № 151 (1999): 463–68. http://dx.doi.org/10.1017/s0022143000001325.

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AbstractThe annual mean oxygen-isotope content of Antarctic snow is strongly influenced by the seasonal variability of accumulation. Since the annual mean δ18O value is frequently used to derive mean annual temperatures from ice cores, changes in atmospheric circulation pattern can lead to large errors in the deduced temperature record. At the German Antarctic wintering base, Neumayer, accumulation measurements have been carried out continuously over the last 16 years. Weekly readings of accumulation stakes combined with snow pits and shallow firn cores are used to investigate the influence of

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Brodnik, Drago, Denis Glavič-Cindro, Matjaž Korun, et al. "Negative correlation between the number of sunspots and the occurrence of 7Be and 22Na in the surface air and their contribution to radiation doses." Archives of Industrial Hygiene and Toxicology 70, no. 4 (2019): 290–95. http://dx.doi.org/10.2478/aiht-2019-70-3336.

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AbstractThis article presents yearly mean concentrations of cosmogenic radionuclides 7Be and 22Na occurring in dry and wet depositions (fallout) and aerosols. Time dependencies negatively correlated with the yearly mean number of sunspots. Activity concentrations of 7Be and 22Na in aerosols in the surface air had a correlation of near-unity. 7Be in aerosols exhibited a smoother time dependence than 22Na, implying that the production of 22Na is more sensitive to the solar activity than the production of 7Be. The effect of the measured doses on the general population through internal and externa

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Herman, Marc, Pierre Dutilleul, and Tomas Avella-Shaw. "Intra-Ring and Inter-Ring Variations of Tracheid Length in Fast-Grown Versus Slow-Grown Norway Spruces (Picea Abies)." IAWA Journal 19, no. 1 (1998): 3–23. http://dx.doi.org/10.1163/22941932-90000648.

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Our study was conducted on 40 Norway spruces [Picea abies (L.) Karst.] from a stand located in the Belgian Ardennes. Twenty trees were randomly sampled from a slow-growth category, and twenty others from a fast -growth category. The hypothesis under testing is fourfold: increased tree growth rate may affect 1) the intra-ring weighted frequency distribution of tracheid length, 2) the inter-ring variation (from pith to bark) of the parameters describing this frequency distribution, 3) the interring variation of the mean tracheid length, and 4) the correlation between yearly mean tracheid length

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15

Li, Li, Yuan Li, Qimin He, and Xiaoming Wang. "Weighted Mean Temperature Modelling Using Regional Radiosonde Observations for the Yangtze River Delta Region in China." Remote Sensing 14, no. 8 (2022): 1909. http://dx.doi.org/10.3390/rs14081909.

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Precipitable water vapor can be estimated from the Global Navigation Satellite System (GNSS) signal’s zenith wet delay (ZWD) by multiplying a conversion factor, which is a function of weighted mean temperature (Tm) over the GNSS station. Obtaining Tm is an important step in GNSS precipitable water vapor (PWV) conversion. In this study, aiming at the problem that Tm is affected by space and time, observations from seven radiosonde stations in the Yangtze River Delta region of China during 2015−2016 were used to establish both linear and nonlinear multifactor regional Tm model (RTM). Compared wi

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A., Keka Israt, Matin I., Rahman M., and Banu D.A. "Analysis of Drought in Eastern Part of Bangladesh." DIU Journal of Science & Technology 7, no. 1 (2024): 20–27. https://doi.org/10.5281/zenodo.13738979.

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Analysis of drought is very important for the irrigation purpose of a country. In this work analysis of drought in the eastern part of Bangladesh has been studied. Yearly meteorological drought has been analyzed by comparing the yearly rainfall deficiency with the mean yearly rainfall. Yearly drought analysis has also been performed by three climatic indexes. The climatic indexes are De Mortone Aridity Index, IdM; Seleaninov Hydrothermic Index, IhS; and Donciu Climate Index, IcD. With the help of annual rainfall assurance (A%) yearly drought analysis has been performed by the climatic indexes.

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Bautista Vicente, Flor, Noel Carbajal, and Luis Felipe Pineda Martínez. "Estimation of Total Yearly CO2Emissions by Wildfires in Mexico during the Period 1999–2010." Advances in Meteorology 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/958457.

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The phenomenon of wildfires became a global environmental problem which demands estimations of their CO2emissions. Wildfires have deteriorated the air quality increasingly. Using available information on documented wildfires and a data set of satellite detected hot spots, total yearly emissions of CO2in Mexico were estimated for the period 1999–2010. A map of the main vegetation groups was used to calculate total areas for every vegetation type. The yearly number of hot spots per vegetation type was calculated. Estimates of emitted CO2in a wildfire were then accomplished by considering paramet

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Jie, TANG. "Application of the Grey Topological Theory in the Prediction of Yearly Mean Sunspot Numbers1,2." Chinese Astronomy and Astrophysics 39, no. 1 (2015): 45–53. http://dx.doi.org/10.1016/j.chinastron.2015.01.002.

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Oguz, T., P. Malanotte-Rizzoli, and D. Aubrey. "Wind and thermohaline circulation of the Black Sea driven by yearly mean climatological forcing." Journal of Geophysical Research 100, no. C4 (1995): 6845. http://dx.doi.org/10.1029/95jc00022.

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Orlich, Donald C. "Longitudinal Effect of the Washington Assessment of Student Learning (WASL) on Student Achievement." education policy analysis archives 11 (June 12, 2003): 18. http://dx.doi.org/10.14507/epaa.v11n18.2003.

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Linn, Baker and Betebenner (2002) suggested using the effect size statistic as a measure of adequate yearly progress target (AYPT) as is required by PL 107-110. This paper analyzes a four-year data set from the required high-stakes test--Washington Assessment of Student Learning—using effect size as the AYPT metric. Mean scale scores for 4th, 7th and 10th grade reading and mathematics were examined. Nominal descriptors suggested by Cohen (1988) were applied and showed no yearly effect in student achievement as a function of the WASL. Comparing the 1998 scale scores to those of 2001 showed a sm

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Hieronymus, Magnus. "A yearly maximum sea level simulator and its applications: A Stockholm case study." Ambio 51, no. 5 (2021): 1263–74. http://dx.doi.org/10.1007/s13280-021-01661-4.

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AbstractA yearly maximum sea level simulator for Stockholm is presented. The simulator combines extreme sea level estimates and mean sea level rise projections into a joint probabilistic framework. The framework can be used, for example, to assess the risk that new structures placed at the current minimum allowed height above the sea level can become flooded in the future. Such assessments can be used to underpin future building free levels, which would be a great improvement over the much more arbitrary criteria in use today. Another strong point of the framework is that it can be used to qua

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Blanc, P., C. Coulaud, and L. Wald. "Yearly changes in surface solar radiation in New Caledonia." Advances in Science and Research 12, no. 1 (2015): 1–4. http://dx.doi.org/10.5194/asr-12-1-2015.

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Abstract. New Caledonia experiences a decrease in surface solar irradiation since 2004. It is of order of 4% of the mean yearly irradiation over the 10 years period: 2004–2013, and amounts to −9 W m−2. The preeminent roles of the changes in cloud cover and to a lesser extent, those in aerosol optical depth on the decrease in yearly irradiation are evidenced. The study highlights the role of data sets offering a worldwide coverage in understanding changes in solar radiation and planning large solar energy plants such as the ICOADS (International Comprehensive Ocean-Atmosphere Data Set) of the N

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Tsanakas, Andreas, Mario V. Wüthrich, and Aleš Černý. "MARKET VALUE MARGIN VIA MEAN–VARIANCE HEDGING." ASTIN Bulletin 43, no. 3 (2013): 301–22. http://dx.doi.org/10.1017/asb.2013.18.

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AbstractWe use mean–variance hedging in discrete time in order to value an insurance liability. The prediction of the insurance liability is decomposed into claims development results, that is, yearly deteriorations in its conditional expected values until the liability is finally settled. We assume the existence of a tradeable derivative with binary pay-off written on the claims development result and available in each development period. General valuation formulas are stated and, under additional assumptions, these valuation formulas simplify to resemble familiar regulatory cost-of-capital-b

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Dietmaier, Annette, and Thomas Baumann. "Forecasting changes of the flow regime at deep geothermal wells based on high resolution sensor data and low resolution chemical analyses." Advances in Geosciences 58 (May 26, 2023): 189–97. http://dx.doi.org/10.5194/adgeo-58-189-2023.

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Abstract. Geothermal waters provide a great resource to generate clean energy, however, there is a notorious lack of high quality data on these waters. The scarcity of deep geothermal aquifer information is largely due to inaccessibility and high analysis costs. However, multiple operators use geothermal wells in Lower Bavaria and Upper Austria for balneological (medical and wellness) applications as well as for heat mining purposes. The state of the art sampling strategy budgets for a sampling frequency of 1 year. Previous studies have shown that robust groundwater data requires sampling inte

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Vøllestad, L. A., B. Jonsson, N. A. Hvidsten, T. F. Næsje, Ø. Haraldstad, and J. Ruud-Hansen. "Environmental Factors Regulating the Seaward Migration of European Silver Eels (Anguilla anguilla)." Canadian Journal of Fisheries and Aquatic Sciences 43, no. 10 (1986): 1909–16. http://dx.doi.org/10.1139/f86-236.

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We examined the connection between descent of European silver eels (Anguilla anguilla) and water discharge, water temperature, turbidity, photoperiod, light intensity, and moon phase based on 10 yr of field data and field experiments. The eel migration takes place between August and December, and mean water temperature for July–August and mean water discharge for August–October explained 91% of the total variation in the start of the yearly silver eel run. Low mean water temperatures during July–August and high mean water discharge during August–October resulted in an early start of the yearly

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Chen, Xiongwen, John L. Willis, and Qinfeng Guo. "Patterns of Water Consumption in Longleaf Pine Restoration Areas and the Relationship with Cone Production." Forests 14, no. 10 (2023): 2081. http://dx.doi.org/10.3390/f14102081.

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Monitoring water consumption dynamics across the geographic range of an ecosystem may indicate the possible variation and stress in a biome. Here, model output data based on remote sensing (1979–2022) were used to examine the water consumption dynamics and effects on cone production in three geographic margins in the longleaf pine’s range (i.e., Bladen Lake State Forest, Escambia Experimental Forest, and Kisatchie National Forest) under varying climatic conditions. Results indicated that the mean annual transpiration at Escambia was approximately 431 mm and that at Bladen and Kisatchie was 500

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KASTELEC, Damijana. "Use of universal kriging for objective spatial interpolation of average yearly precipitation in Slovenia." Acta agriculturae Slovenica 73, no. 2 (1999): 301–14. http://dx.doi.org/10.14720/aas.1999.73.2.15990.

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Universal kriging was used as a objective spatial interpolation method to obtain mean yearly precipitation of Slovenia, for the period 1961-1990. Its linear dependence by altitude and longitude was taken into account. We used the data corrected for the error caused by wind. The spatial interpolation was done in the grid with 1 km resolution. We used the digital relief model with the same resolution. On the basis of the cross-validation technique we chose the exponent variogram model. The circle with the 40 km radius as the influential surrounding was taken into consideration. On these basis we

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Raboisson, Didier, Marie Dervillé, Nicolas Herman, Eric Cahuzac, Pierre Sans, and Gilles Allaire. "Herd-level and territorial-level factors influencing average herd somatic cell count in France in 2005 and 2006." Journal of Dairy Research 79, no. 3 (2012): 324–32. http://dx.doi.org/10.1017/s0022029912000258.

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Mastitis is a multifactorial disease and the most costly dairy production issue. In spite of extensive literature on udder-health risk factors, effects of metabolic diseases, farmers’ competencies and livestock farming system on somatic cells count (SCC) are sparsely described. Herd-level or territorial-level factors affecting monthly composite milk weighted mean cow SCC (CMSCC) were analysed with a linear mixed effect model. The average CMSCC was 266000 cells/ml. Half of the herds had CMSCC >300000 cells/ml for 2–6 months a year, and 15% of herds for more than 7 months a year. CMSCC was po

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Peng, Zicheng, Tegu Chen, Baofu Nie, M. John Head, Xuexian He та Weijian Zhou. "Coral δ18O records as an indicator of winter monsoon intensity in the South China Sea". Quaternary Research 59, № 3 (2003): 285–92. http://dx.doi.org/10.1016/s0033-5894(03)00042-5.

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AbstractWe have used correlative analysis between mean December–January–February winter wind velocities, measured at the Xisha Meteorological Observatory (16°50′N, 112°20′E) in the middle of the South China Sea, and mean δ18O data for the corresponding month from Porites lutea coral, collected in Longwan waters (19°20′N, 110°39′E), to obtain a linear equation relating the two datasets. This winter wind velocity for the South China Sea (WMIIscs) can then be correlated to the coral δ18O by the equation WMIIscs = −1.213–1.351 δ18O (‰ PDB), r = −0.60, n = 40, P = 0.01. From this, the calculated WM

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Major, György. "Heat capacity of the climate system derived from planetary radiation budget measurements." Időjárás 126, no. 3 (2022): 297–304. http://dx.doi.org/10.28974/idojaras.2022.3.1.

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The new edition of the satellite measured radiation budget data have the smallest ever random and systematic error. From them, mean yearly cycle of the planetary heat capacity has been calculated for the period of 2000–2014. The radiation budget data measured before 2000 have serious systematic error. Using the new radiation budget data as well as the total solar irradiance data, the old yearly radiation budget values have been corrected. From the corrected data, the average heat capacity of the climate system has been calculated for the 1964–2014 half century.

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Lindtner, S., H. Kroiss, and O. Nowak. "Benchmarking of municipal waste water treatment plants (an Austrian project)." Water Science and Technology 50, no. 7 (2004): 265–71. http://dx.doi.org/10.2166/wst.2004.0469.

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An Austrian research project focused on the development of process indicators for treatment plants with different process and operation modes. The whole treatment scheme was subdivided into four processes, i.e. mechanical pretreatment (Process 1), mechanical-biological waste water treatment (Process 2), sludge thickening and stabilisation (Process 3) and further sludge treatment and disposal (Process 4). In order to get comparable process indicators it was necessary to subdivide the sample of 76 individual treatment plants all over Austria into five groups according to their mean organic load

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von Bloh, W., M. C. Romano, and M. Thiel. "Long-term predictability of mean daily temperature data." Nonlinear Processes in Geophysics 12, no. 4 (2005): 471–79. http://dx.doi.org/10.5194/npg-12-471-2005.

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Abstract. We quantify the long-term predictability of global mean daily temperature data by means of the Rényi entropy of second order K2. We are interested in the yearly amplitude fluctuations of the temperature. Hence, the data are low-pass filtered. The obtained oscillatory signal has a more or less constant frequency, depending on the geographical coordinates, but its amplitude fluctuates irregularly. Our estimate of K2 quantifies the complexity of these amplitude fluctuations. We compare the results obtained for the CRU data set (interpolated measured temperature in the years 1901-2003 wi

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Forsyth, Peter A., and Kenneth R. Vetzal. "Dynamic mean variance asset allocation: Tests for robustness." International Journal of Financial Engineering 04, no. 02n03 (2017): 1750021. http://dx.doi.org/10.1142/s2424786317500219.

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We consider a portfolio consisting of a risk-free bond and an equity index which follows a jump diffusion process. Parameters for the inflation-adjusted return of the stock index and the risk-free bond are determined by examining 89 years of data. The optimal dynamic asset allocation strategy for a long-term pre-commitment mean variance (MV) investor is determined by numerically solving a Hamilton–Jacobi–Bellman partial integro-differential equation. The MV strategy is mathematically equivalent to minimizing the quadratic shortfall of the target terminal wealth. We incorporate realistic constr

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Pitkänen, Niina, Katja Pahkala, Suvi P. Rovio, et al. "Effects of Randomized Controlled Infancy-Onset Dietary Intervention on Leukocyte Telomere Length—The Special Turku Coronary Risk Factor Intervention Project (STRIP)." Nutrients 13, no. 2 (2021): 318. http://dx.doi.org/10.3390/nu13020318.

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Reduced telomere length (TL) is a biological marker of aging. A high inter-individual variation in TL exists already in childhood, which is partly explained by genetics, but also by lifestyle factors. We examined the influence of a 20-year dietary/lifestyle intervention on TL attrition from childhood to early adulthood. The study comprised participants of the longitudinal randomized Special Turku Coronary Risk Factor Intervention Project (STRIP) conducted between 1990 and 2011. Healthy 7-month-old children were randomized to the intervention group (n = 540) receiving dietary counseling mainly

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Trolliet, Mélodie, and Lucien Wald. "Monthly solar radiation in the tropical Atlantic Ocean: Can its spatial variations be captured by the current configuration of the PIRATA moorings?" Advances in Science and Research 15 (July 11, 2018): 127–36. http://dx.doi.org/10.5194/asr-15-127-2018.

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Abstract. The present work aims at contributing to the proper design of networks of measuring moorings with regard to the downwelling solar irradiance at surface (DSIS). Considering the yearly profiles of the monthly DSIS, this article studies whether the 17 moorings within the existing PIRATA network are well geographically distributed so that they capture the spatial variations of the yearly profiles in the tropical Atlantic Ocean. A clustering technique is performed onto the HelioClim-3v5 satellite-derived gridded dataset of DSIS spanning 12 years, thus yielding 17 zones of similar yearly p

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Vasilevich and Nikanorova. "ANALYTICAL MATHEMATICAL MODELS OF THE POPULATION OF ARTHROPODS IN THE NON-BLACK EARTH ZONE." THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL, no. 22 (May 19, 2021): 128–32. http://dx.doi.org/10.31016/978-5-6046256-1-3.2021.22.128-132.

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The article provides an example of mathematical analytical modeling of the population size of blood-sucking arthropods on the example of mosquitoes and ixodid ticks that inhabit the Kaluga Region. The presented analytical mathematical models make it possible to clearly assess the influence of environmental factors on parasite populations. The following factors were taken into account: average temperature (monthly and yearly, t, oС); average precipitation (monthly and yearly, S, mm); mean atmospheric pressure (P, mm Hg) for mosquitoes, and monthly average temperature (t, o С), monthly mean rela

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Federico, S., L. Pasqualoni, E. Avolio, and C. Bellecci. "<i>Brief communication</i> "Calabria daily rainfall from 1970 to 2006"." Natural Hazards and Earth System Sciences 10, no. 4 (2010): 717–22. http://dx.doi.org/10.5194/nhess-10-717-2010.

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Abstract. This brief communication introduces a new quality-controlled precipitation database for Calabria, shows the precipitation trend for the period considered, and correlates daily rainfall with some common teleconnection patterns. The database consists of daily accumulated precipitation collected by 61 rain gauges from 1 January 1970 to 31 December 2006. The 37-year trend in yearly rainfall shows a decrease of 4.7 mm/y, with a 17% reduction in the yearly mean value. The correlation of the daily rainfall with large-scale patterns shows that the Mediterranean Oscillation Index (MOI a/c) is

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Safar, Michel E., Céline Lange, Jacques Blacher, Eveline Eschwège, Jean Tichet, and Beverley Balkau. "Mean and yearly changes in blood pressure with age in the metabolic syndrome: the DESIR study." Hypertension Research 34, no. 1 (2010): 91–97. http://dx.doi.org/10.1038/hr.2010.180.

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Audisio, Marcelo, Ingrid Strusberg, Sergio Orellana Barbera, et al. "Costo directo demestral por artritis reumatoidea en pacientes que concurren a un hospital universitario." Revista de la Facultad de Ciencias Médicas de Córdoba 60, no. 2 (2022): 35–41. http://dx.doi.org/10.31053/1853.0605.v60.n2.36661.

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Introduction: There are no medical puhlical.ions with economic analysis of rheumatoid arthritis patients (RA) from Argentina are lackirig. The objective of the present study is to determine the direct cost and its breakdown in patients with RA. Material and Methods: Fifty.- two patients who met the American College of Rheumatology RA entena were included. Direct cost was calculated over a follow-up period of 6 months during year 2001. Variables were analyzed with Student's T test, Mann-Whitney U Test, cor ANOVA as corresponded. P values <0.05 were considered significant. Results: The mean m

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Huang, B. J. "Development of Long-Term Performance Correlation for Solar Thermosyphon Water Heater." Journal of Solar Energy Engineering 111, no. 2 (1989): 124–31. http://dx.doi.org/10.1115/1.3268297.

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A semi-empirical long-term performance correlation for a solar thermosyphon water heater was derived. The derivation used the simulated results from a well-tested computer program developed previously. It was shown that the mean-day simulation results agree very well with the hour-by-hour simulation for the long-term performance of solar thermosyphon water heaters and hence were adopted for the derivation of the performance correlation. The correlations for the yearly- and monthly-mean efficiency in terms of eleven parameters which characterize the performance of solar thermosyphon water heate

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Jeong, Jaesik, and Suyeon Oh. "Seasonal Variation of Cosmic Ray Intensity Observed by the Oulu Neutron Monitor." Journal of Astronomy and Space Sciences 37, no. 3 (2020): 165–70. http://dx.doi.org/10.5140/jass.2020.37.3.165.

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Muons and neutrons are representative secondary particles that are generated by interactions between primary cosmic ray particles (mostly protons) and the nuclei of atmospheric gas compounds. Previous studies reported that muons experience seasonal variations because of the meteorological effects of temperature. The intensity of neutrons has a typical modulation with various periods and reasons, such as diurnal and solar variation or transient events. This paper reports that cosmic ray particles, which were observed by neutron monitors, have seasonal variations using the daily data at the Oulu

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Abraham, Uwem Paul, and Emmanuel Wilfred Okereke. "Time Series Modelling of Yearly Cassava Production in Nigeria: A Comparative Study." International Journal of Mathematics and Statistics Studies 13, no. 2 (2025): 1–20. https://doi.org/10.37745/ijmss.13/vol13n2120.

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Cassava production is an important agricultural activity in Nigeria, as it contributes to the GDP of the polity. Appropriate prediction of cassava production in the nation Nigeria is fundamental to the development of a long-term plan to sustain agricultural productivity and promote food security. This study investigated in detail statistical characteristics of yearly cassava production in Nigeria over the period 1961 to 2022 with a view to choosing a befitting model for the data. The data set was divided into training set and test set. By virtue of ADF test, the training set was found to be no

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Doktorowski, Sabine, Jan Kretzschmar, Johannes Quaas, Marc Salzmann, and Odran Sourdeval. "Subgrid-scale variability of cloud ice in the ICON-AES 1.3.00." Geoscientific Model Development 17, no. 8 (2024): 3099–110. http://dx.doi.org/10.5194/gmd-17-3099-2024.

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Abstract. This paper presents a stochastic approach for the aggregation process rate in the ICOsahedral Nonhydrostatic general circulation model (ICON-AES), which takes subgrid-scale variability into account. This method creates a stochastic parameterization of the process rate by choosing a new specific cloud ice mass at random from a uniform distribution function. This distribution, which is consistent with the model's cloud cover scheme, is evaluated in terms of cloud ice mass variance with a combined satellite retrieval product (DARDAR) from the satellite cloud radar CloudSat and the Cloud

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Faessler, Bernhard, and Aleksander Bogunović Jakobsen. "Autonomous Operation of Stationary Battery Energy Storage Systems—Optimal Storage Design and Economic Potential." Energies 14, no. 5 (2021): 1333. http://dx.doi.org/10.3390/en14051333.

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Global warming requires a changeover from fossil fuel based to renewable energy sources on the electrical supply side and electrification of the demand side. Due to the transient nature of renewables and fluctuating demand, buffer capacities are necessary to compensate for supply/demand imbalances. Battery energy storage systems are promising. However, the initial costs are high. Repurposing electric vehicle batteries can reduce initial costs. Further, storage design optimization could significantly improve costs. Therefore, a battery control algorithm was developed, and a simulation study was

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Morakinyo, Barnabas O. "Determination of Mean Sea Level from 1980 to 2018 using tidal observation data, Bonny Primary Port, Nigeria." Science World Journal 19, no. 4 (2025): 1176–84. https://doi.org/10.4314/swj.v19i4.36.

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Mean Sea Level (MSL) is the average height of the sea for all stages of tide over 19 years; and it is obtained through tidal analysis. This research work aims at determination and assessment of the MSL for the Bonny port. Tidal data of 1980, 1994 and 2018 years of observation were employed using the Least Squares Adjustment method with MATLAB programming codes for data processing. The results of the monthly analysis were compared and subjected to statistical analysis (Mean, standard deviation, t-test and Analysis of variance (ANOVA). The difference between the computed 1980 yearly mean and tha

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Sorensen, Vanessa A., and Roger A. Powell. "Estimating survival rates of black bears." Canadian Journal of Zoology 76, no. 7 (1998): 1335–43. http://dx.doi.org/10.1139/z98-060.

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Capture-recapture, radiotelemetry (on a monthly and a yearly basis), and age-distribution methods were used to estimate annual survival rates for black bears (Ursus americanus) in the southern Appalachians from 1981 to 1996. Using capture-recapture data, the Jolly-Seber estimator calculated the annual survival rate for all bears over all years to be 0.64 ± 0.04 (mean ± SE). Because of small sample sizes, this method did not produce yearly estimates or allow separation of the data into age or sex classes. Both the Kaplan-Meier estimator (using monthly telemetry data) and the percent survival es

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WANG, XIN, CHENGDE YANG, YANLIN ZHANG, et al. "Monitoring and simulation of hydrothermal conditions indicating the deteriorating stability of a perennially frozen moraine dam in the Himalayas." Journal of Glaciology 64, no. 245 (2018): 407–16. http://dx.doi.org/10.1017/jog.2018.38.

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ABSTRACTThermal and hydrological dynamics and their impacts on the stability of a moraine dam were analyzed and simulated for the Longbasaba Lake in the Himalaya, based on soil temperature, moisture and heat flux data observed at different depths in the dam from 2012 to 2016. Annual average heat income is greater than heat expenditure on the dam surface. The mean annual temperature at observed the depths of 0–150 cm is >0°C, although the average annual air temperature was −3.6°C over the dam, indicating a relatively larger temperature difference between moraine dam and air. The volumetric s

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Helmi, Ahmed M., Mohamed Elgamal, Mohamed I. Farouk, Mohamed S. Abdelhamed, and Bakinam T. Essawy. "Evaluation of Geospatial Interpolation Techniques for Enhancing Spatiotemporal Rainfall Distribution and Filling Data Gaps in Asir Region, Saudi Arabia." Sustainability 15, no. 18 (2023): 14028. http://dx.doi.org/10.3390/su151814028.

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Providing an accurate spatiotemporal distribution of rainfall and filling data gaps are pivotal for effective water resource management. This study focuses on the Asir region in the southwest of Saudi Arabia. Given the limited accuracy of satellite data in this arid/mountain-dominated study area, geospatial interpolation has emerged as a viable alternative approach for filling terrestrial records data gaps. Furthermore, the irregularity in rain gauge data and the yearly spatial variation in data gaps hinder the creation of a coherent distribution pattern. To address this, the Centered Root Mea

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Delgado-Ramos, Fernando, and Carmen Hervás-Gámez. "Simple and Low-Cost Procedure for Monthly and Yearly Streamflow Forecasts during the Current Hydrological Year." Water 10, no. 8 (2018): 1038. http://dx.doi.org/10.3390/w10081038.

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Accurately forecasting streamflow values is essential to achieve an efficient, integrated water resources management strategy and to provide consistent support to water decision-makers. We present a simple, low-cost, and robust approach for forecasting monthly and yearly streamflows during the current hydrological year, which is applicable to headwater catchments. The procedure innovatively combines the use of well-known regression analysis techniques, the two-parameter Gamma continuous cumulative probability distribution function and the Monte Carlo method. Several model performance statistic

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Chen, Jiandong, Ming Gao, Ding Li, Malin Song, Qianjiao Xie, and Jixian Zhou. "Extended Yearly LMDI Approaches: A Case Study of Energy Consumption." Mathematical Problems in Engineering 2020 (January 30, 2020): 1–13. http://dx.doi.org/10.1155/2020/9207896.

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Although the logarithmic mean Divisia index (LMDI) approach has been widely used in the field of energy and environmental research, it has a shortcoming. Since the LMDI approach only focuses on the base year and reporting year, in situations in which the research period is long, the annual changes during the research period may be difficult to capture. In particular, if there were huge fluctuations in the indicators (such as the energy consumption and carbon emissions) or their drivers during the middle of a research period, a substantial amount of information about the fluctuations will be ig

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