scholarly journals Reduced burst speed is a cost of rapid growth in anuran tadpoles: problems of autocorrelation and inferences about growth rates

2003 ◽  
Vol 17 (3) ◽  
pp. 328-334 ◽  
Author(s):  
J. D. Arendt
Keyword(s):  
Growth Rates ◽  
Rapid Growth

IRON INTAKE, HEMOGLOBIN, AND PHYSICAL GROWTH DURING THE FIRST TWO YEARS OF LIFE

PEDIATRICS ◽  
1962 ◽  
Vol 30 (4) ◽  
pp. 518-539
Author(s):  
Virginia A. Beal ◽  
Aldula J. Meyers ◽  
Robert W. McCammon
Keyword(s):  
Food Intake ◽  
Iron Deficiency ◽  
Growth Rates ◽  
Rapid Growth ◽  
Clinical Evidence ◽  
Physical Growth ◽  
First Year ◽  
Dietary Iron ◽  
Iron Intake ◽  
Hemoglobin Synthesis

The variety of infant diets given subjects in this group during the first year all provide iron in amounts of 0.5 mg/kg/day or more except in one of the 59 children. This level of dietary iron intake was adequate to meet iron requirements for hemoglobin synthesis and to prevent development of hematologic or clinical evidence of iron deficiency. Food intake adequate to support rapid growth rates contains enough iron to support the needed relative acceleration of hemoglobin synthesis. Lower intakes of iron are associated with higher percentage utilization in hemoglobin synthesis and higher intakes result in lower utilization. Supplementation of diets with iron in several forms occurred in 25% of the group without hematologic evidence of response as compared with the group dependent on dietary iron alone.

Section III. Prospects for Europe

1998 ◽  
Vol 165 ◽  
pp. 54-65
Author(s):  
Julian Morgan ◽  
Florence Hubert ◽  
Dawn Holland ◽  
Dirk te Velde ◽  
Véronique Genre
Keyword(s):  
Czech Republic ◽  
Economic Performance ◽  
Growth Rates ◽  
Rapid Growth ◽  
Swiss Franc ◽  
The Czech Republic ◽  
Eu Countries ◽  
Real Gdp ◽  
Second Year ◽  
The Eu

Activity picked up markedly in the EU area last year; growth was estimated to have been 2.6 per cent compared with 1.8 per cent recorded in 1996. However the aggregate movement masks some significant divergences in economic performance. Growth was relatively modest, at between 2–2½ per cent in Germany, France and Austria, whilst Italy and Sweden recorded growth rates below 2 per cent for the second year running. The fastest growth was achieved in the Irish Republic where output expanded by over 10 per cent last year, following cumulative growth of 27 per cent in the previous three years. Finland also recorded rapid growth of nearly 6 per cent and nearly all the remaining EU countries enjoyed growth rates of 3 per cent or above. Outside the EU, activity remained robust in Norway, Poland and Hungary but was markedly weaker in the Czech Republic and Switzerland. Indeed real GDP has barely changed in Switzerland since 1990, partly reflecting the strength of the Swiss franc, although there are now signs that growth will be stronger in 1998 as the franc has depreciated since the end of 1995.

Rapid Growth Rates of Suspected Pancreatic Cyst Branch Duct Intraductal Papillary Mucinous Neoplasms Predict Malignancy

2015 ◽  
Vol 60 (9) ◽  
pp. 2800-2806 ◽  
Author(s):  
Wilson T. Kwong ◽  
Robert D. Lawson ◽  
Gordon Hunt ◽  
Syed M. Fehmi ◽  
James A. Proudfoot ◽  
...  
Keyword(s):  
Growth Rates ◽  
Rapid Growth ◽  
Pancreatic Cyst ◽  
Intraductal Papillary Mucinous Neoplasms ◽  
Branch Duct ◽  
Mucinous Neoplasms

Czechoslovak industrial exports: structural change, re-orientation and specialization (1989 - 1992)

1996 ◽  
Vol 5 (3) ◽  
Author(s):  
Adam Slater
Keyword(s):  
Structural Change ◽  
Open Economy ◽  
Growth Rates ◽  
Rapid Growth ◽  
Transition Period ◽  
Small Open Economy ◽  
Considerable Extent ◽  
The West ◽  
Export Sector ◽  
Reorientation Process

Fostering a strong export sector is essential for the kind of small, open economy like post-communist Czechoslovakia (latterly the Czech and Slovak Republics). The CSFR export sector has to a considerable extent the defied expectations, of many of the more pessimistic commentators in regard to the expansion of exports to the West, as many industries with a previously poor record on the EC market have attained very rapid growth rates of exports to that market. Nevertheless, the evidence of section 3 points to a weakening of the reorientation process in 1992, and raises questions about the future of many of the industries which formerly exported largely to the CMEA area. Whilst the overall level of exports has been largely maintained in the transition period, export growth to the West has not allowed most of the CMEA-oriented industries to maintain their shares in total exports.

scholarly journals Validation of a scoring system to evaluate the risk of rapid growth of intracranial meningiomas in neurofibromatosis type 2 patients

2020 ◽  
pp. 1-9 ◽  
Author(s):  
Samiya Abi Jaoude ◽  
Matthieu Peyre ◽  
Vincent Degos ◽  
Stéphane Goutagny ◽  
Béatrice Parfait ◽  
...  
Keyword(s):  
Tumor Growth ◽  
Growth Rates ◽  
Rapid Growth ◽  
Scoring System ◽  
Neurofibromatosis Type ◽  
Neurofibromatosis Type 2 ◽  
Intracranial Meningioma ◽  
Intracranial Meningiomas ◽  
Significant Difference

OBJECTIVEIntracranial meningiomas occur in about half of neurofibromatosis type 2 (NF2) patients and are very frequently multiple. Thus, estimating individual meningiomas’ growth rates is of great interest to tailor therapeutic interventions. The Asan Intracranial Meningioma Scoring System (AIMSS) has recently been published to estimate the risk of tumor growth in sporadic meningiomas. The current study aimed to determine predictors of rapid meningioma growth in NF2 patients and to evaluate the AIMSS score in a specific NF2 cohort.METHODSThe authors performed a retrospective analysis of 92 NF2 patients with 358 measured intracranial meningiomas that had been observed prospectively between 2012 and 2018. Tumor volumes were measured at diagnosis and at each follow-up visit. The growth rates were determined and evaluated with respect to the clinicoradiological parameters. Predictors of rapid tumor growth (defined as growth ≥ 2 cm3/yr) were analyzed using univariate followed by multivariate logistic regression to build a dedicated predicting model. Receiver operating characteristic (ROC) curves to predict the risk of rapid tumor growth with the AIMSS versus the authors’ multivariate model were compared.RESULTSSixty tumors (16.76%) showed rapid growth. After multivariate analysis, a larger tumor volume at diagnosis (p < 0.0001), presence of peritumoral edema (p = 0.022), absence of calcifications (p < 0.0001), and hyperintense or isointense signal on T2-weighted MRI (p < 0.005) were statistically significantly associated with rapid tumor growth. It is particularly notable that the genetic severity score did not seem to influence the growth rate of NF2 meningiomas. In comparison with the AIMSS, the authors’ multivariate model’s prediction did not show a statistically significant difference (area under the curve [AUC] 0.82 [95% CI 0.76–0.88] for the AIMSS vs AUC 0.86 [95% CI 0.81–0.91] for the authors’ model, p = 0.1).CONCLUSIONSThe AIMSS score is valid in the authors’ cohort of NF2-related meningiomas. It adequately predicted risk of rapid meningioma growth and could aid in decision-making in NF2 patients.

RAPID GROWTH PATHS IN CONVEX-VALUED RANDOM DYNAMICAL SYSTEMS

2001 ◽  
Vol 01 (04) ◽  
pp. 493-509 ◽  
Author(s):  
IGOR V. EVSTIGNEEV ◽  
MICHAEL I. TAKSAR
Keyword(s):  
Economic Growth ◽  
Asymptotic Behavior ◽  
Dynamical Systems ◽  
Growth Rates ◽  
Stochastic Models ◽  
Rapid Growth ◽  
Random Dynamical Systems ◽  
Random Vectors ◽  
Time Period

This paper examines set-valued random dynamical systems defined by convex homogeneous stochastic operators. The operators under consideration transform elements of a cone contained in a space of random vectors into subsets of the cone. We study rapid paths of such dynamical systems, i.e. those paths which maximize (appropriately defined) growth rates at every time period. Questions of existence, uniqueness and asymptotic behavior of infinite rapid trajectories are considered. The study is motivated by problems related to stochastic models of economic growth.

scholarly journals Rapid growth of organic aerosol nanoparticles over a wide tropospheric temperature range

2018 ◽  
Vol 115 (37) ◽  
pp. 9122-9127 ◽  
Author(s):  
Dominik Stolzenburg ◽  
Lukas Fischer ◽  
Alexander L. Vogel ◽  
Martin Heinritzi ◽  
Meredith Schervish ◽  
...  
Keyword(s):  
Growth Rates ◽  
Rapid Growth ◽  
Aerosol Particles ◽  
Particle Growth ◽  
Molecular Cluster ◽  
Tropospheric Temperature ◽  
Initial Growth ◽  
European Organization ◽  
Cold Temperatures ◽  
Wide Range

Nucleation and growth of aerosol particles from atmospheric vapors constitutes a major source of global cloud condensation nuclei (CCN). The fraction of newly formed particles that reaches CCN sizes is highly sensitive to particle growth rates, especially for particle sizes <10 nm, where coagulation losses to larger aerosol particles are greatest. Recent results show that some oxidation products from biogenic volatile organic compounds are major contributors to particle formation and initial growth. However, whether oxidized organics contribute to particle growth over the broad span of tropospheric temperatures remains an open question, and quantitative mass balance for organic growth has yet to be demonstrated at any temperature. Here, in experiments performed under atmospheric conditions in the Cosmics Leaving Outdoor Droplets (CLOUD) chamber at the European Organization for Nuclear Research (CERN), we show that rapid growth of organic particles occurs over the range from −25 °C to 25 °C. The lower extent of autoxidation at reduced temperatures is compensated by the decreased volatility of all oxidized molecules. This is confirmed by particle-phase composition measurements, showing enhanced uptake of relatively less oxygenated products at cold temperatures. We can reproduce the measured growth rates using an aerosol growth model based entirely on the experimentally measured gas-phase spectra of oxidized organic molecules obtained from two complementary mass spectrometers. We show that the growth rates are sensitive to particle curvature, explaining widespread atmospheric observations that particle growth rates increase in the single-digit-nanometer size range. Our results demonstrate that organic vapors can contribute to particle growth over a wide range of tropospheric temperatures from molecular cluster sizes onward.

Sign in / Sign up

Export Citation Format

Share Document