scholarly journals Integrated Modelling of Runoff, Alkalinity, and pH on a Daily Basis

1985 ◽  
Vol 16 (2) ◽  
pp. 89-104 ◽  
Author(s):  
S. Bergström ◽  
B. Carlsson ◽  
G. Sandberg ◽  
L. Maxe
Keyword(s):  
River System ◽  
Daily Basis ◽  
Integrated Modelling ◽  
Running Waters ◽  
Short Term ◽  
Long Term Storage ◽  
Semi Empirical ◽  
Term Storage

Based on the experience from runoff and groundwater recharge simulation a model system has been developed for terrestrial, hydrochemical, and hydrological simulations. The system emphasizes the role of temporary or long term storage in the aquifers of a basin and, separately, accounts for each rainfall or snowmelt event from its entrance into the ground until mixing in the river system. The model is primarily intended for simulation of natural short term variations in alkalinity and pH in running waters. The hydrochemical processes are modelled in a semi-empirical way without assumption of complete hydrochemichal mass-balance. In the paper a brief hydrochemical background is given, and a model with two alternative hydrochemical sub-structures is described. Examples of daily simulations of runoff alkalinity and pH from three different basins are given.

scholarly journals Regulatory redox state in tree seeds

2017 ◽  
Vol 86 (4) ◽  
Author(s):  
Ewelina Ratajczak ◽  
Karl Josef Dietz
Keyword(s):  
Redox State ◽  
Redox Status ◽  
Long Term Storage ◽  
Tree Seeds ◽  
Term Storage ◽  
Intermediate Seeds

Peroxiredoxins (Prx) are important regulators of the redox status of tree seeds during maturation and long-term storage. Thioredoxins (Trx) are redox transmitters and thereby regulate Prx activity. Current research is focused on the association of Trx with Prx in tree seeds differing in the tolerance to desiccation. The results will allow for better understanding the regulation of the redox status in orthodox, recalcitrant, and intermediate seeds. The findings will also elucidate the role of the redox status during the loss of viability of sensitive seeds during drying and long-term storage.

Effects of Tween 80 and Sucrose on Acute Short-Term Stability and Long-Term Storage at −20 C of a Recombinant Hemoglobin

1998 ◽  
Vol 87 (9) ◽  
pp. 1062-1068 ◽  
Author(s):  
Bruce A. Kerwin ◽  
Martin C. Heller ◽  
Steven H. Levin ◽  
Theodore W. Randolph
Keyword(s):  
Tween 80 ◽  
Short Term ◽  
Term Stability ◽  
Long Term Storage ◽  
Term Storage

Role of Cells in Freezing-Induced Cell-Fluid Matrix Interactions Within Engineered Tissues

2012 ◽  
Author(s):  
Angela Seawright ◽  
Altug Ozcelikkale ◽  
J. Craig Dutton ◽  
Bumsoo Han
Keyword(s):  
Tissue Engineering ◽  
Extracellular Matrix ◽  
Regenerative Medicine ◽  
Biological Tissues ◽  
Cellular Viability ◽  
Long Term Storage ◽  
Matrix Interactions ◽  
Term Storage

Cryopreservation can provide long-term storage of various biological tissues, which has significant impact on tissue engineering and regenerative medicine. For successful cryopreservation of tissues, tissue functionality must be maintained including physical properties such as mechanical, optical, and transport properties, as well as cellular viability. Such properties are associated with the extracellular matrix (ECM) microstructure. Thus, the preservation of the ECM microstructure may lead to successful cryopreservation [1,2]. Yet, there is still very little known about changes in the ECM microstructure during freezing/thawing.

The Weight Change of Various Light-Cured Restorative Materials Stored in Water

2005 ◽  
Vol 6 (2) ◽  
pp. 72-79 ◽  
Author(s):  
Filiz Yalcin
Keyword(s):  
Weight Change ◽  
Glass Ionomer ◽  
Weight Changes ◽  
Short Term ◽  
Composite Cement ◽  
Long Term Storage ◽  
Significant Difference ◽  
Restorative Materials ◽  
Term Storage

Abstract This study investigated weight changes of seven different light-cured composite restorative materials, one polyacid glass ionomer compomer, and one light-cured glass-ionomer cement following short-term and long-term storage in water. Two packable composites, three universal (hybrid) composites, one microglass composite, one polyacid glass ionomer resin composite (compomer), one microhybrid low-viscosity (flowable) composite, and one light cured glass ionomer composite cement were evaluated in this study. The weight changes of these specimens were measured daily (short-term storage), and they were measured after six weeks (long-term storage) using an electronic analytical balance. A significant difference was found in Ionoliner, Dyract AP, Opticor flow, Charisma, and Solitare 2, but no significant difference was found in the others (Filtek Z 250, Filtek P60, TPH Spectrum, and Valux Plus). Weight change showed a tendency to increase with the time of water storage. The greatest weight change occurred in light-cured glass ionomer composite cement (Ionoliner), which is followed in order by the weight changes in Dyract AP, Opticor Flow, Charisma, Solitare 2, Filtek Z250, Filtek P60, TPH Spectrum; Valux Plus had the least amount of change. Citation Keyf F, Yalcin F. The Weight Change of Various Light-Cured Restorative Materials Stored in Water. J Contemp Dent Pract 2005 May;(6)2:072-079.

scholarly journals Long-Term Nanoleakage Depth and Pattern of Cervical Restorations Bonded With Different Adhesives

2012 ◽  
Vol 37 (1) ◽  
pp. 45-53 ◽  
Author(s):  
EH Mobarak ◽  
LE Daifalla
Keyword(s):  
Clinical Relevance ◽  
Adhesive System ◽  
Single Step ◽  
Short Term ◽  
Long Term Storage ◽  
Term Storage

Clinical Relevance A mild acetone-based single-step self-etched adhesive system may reveal less nanoleakage in the short-term interval, but unfortunately, this was not sustained after long-term storage.

Understanding Actinides through the Role of 5f Electrons

MRS Bulletin ◽  
2001 ◽  
Vol 26 (9) ◽  
pp. 684-688 ◽  
Author(s):  
T. Gouder ◽  
F. Wastin ◽  
J. Rebizant ◽  
G.H. Lander
Keyword(s):  
Predictive Power ◽  
Quality Data ◽  
Nuclear Fuels ◽  
High Quality ◽  
High Quality Data ◽  
Long Term Storage ◽  
5F Electrons ◽  
Term Storage

Studies of the actinide elements and compounds were (and are) motivated by the need to characterize their structural and thermodynamic properties for the development of nuclear fuels and the treatment of waste, whether it be for long-term storage or ideas involving transmutation in high-powered accelerators. For the most part, tables giving these data exist, although the data for transuranium compounds are rather sparse. A much more difficult task is to understand the data and develop theories that have predictive power in this part of the periodic table. In doing this, however, we are confronted with the extremely complicated electronic structure of the 5f shell and the great paucity of high-quality data on materials containing transuranium isotopes.

scholarly journals Management of Apple Maturity and Postharvest Storage Conditions to Increase Polyphenols in Cider

HortScience ◽  
2019 ◽  
Vol 54 (1) ◽  
pp. 143-148 ◽  
Author(s):  
Brianna L. Ewing ◽  
Gregory M. Peck ◽  
Sihui Ma ◽  
Andrew P. Neilson ◽  
Amanda C. Stewart
Keyword(s):  
The United States ◽  
Storage Conditions ◽  
Short Term ◽  
Postharvest Storage ◽  
Total Polyphenols ◽  
Fruit Storage ◽  
Long Term Storage ◽  
Short Term Storage ◽  
Term Storage

Hard cider production in the United States has increased dramatically during the past decade, but there is little information on how harvest and postharvest practices affect the chemistry of the resulting cider, including concentrations of organoleptically important flavanols. For 2 years we assessed fruit, juice, and cider from a total of five apple (Malus ×domestica Borkh.) cultivars in two experiments: sequential harvests and postharvest storage. Different cultivars were used in 2015 and 2016 with the exception of ‘Dabinett’, which was assessed in both years. There were no differences in polyphenol concentrations in cider made from fruit that was harvested on three separate occasions over a 4-week period in either 2015 or 2016. Fruit storage durations and temperatures had little influence on the chemistry when the experiment was conducted in 2015, but polyphenol concentration was greater after storage in the 2016 experiment. In 2016, total polyphenols in ‘Dabinett’ ciders were 51% greater after short-term storage at 10 °C and 67% greater after long-term storage at 1 °C than the control, which was not subjected to a storage treatment. In 2016, total polyphenols in ‘Binet Rouge’ ciders were 67% greater after short-term storage at 10 °C and 94% greater after long-term storage at 1 °C than the control. Although results varied among cultivars and harvest years, storing apples for longer periods of time and at warmer temperatures may be a strategy to increase polyphenol, particularly flavanol, concentrations in hard cider.

scholarly journals Integrating Whole Blood Transcriptomic Collection Procedures Into the Current Anti-Doping Testing System, Including Long-Term Storage and Re-Testing of Anti-Doping Samples

2021 ◽  
Vol 8 ◽  
Author(s):  
Giscard Lima ◽  
Alexander Kolliari-Turner ◽  
Fernanda Rossell Malinsky ◽  
Fergus M. Guppy ◽  
Renan Paulo Martin ◽  
...  
Keyword(s):  
Whole Blood ◽  
Differentially Expressed ◽  
Rna Seq ◽  
Short Term ◽  
Long Term Storage ◽  
Short Term Storage ◽  
Short And Long Term ◽  
Rna Preservation ◽  
Term Storage

Introduction: Recombinant human erythropoietin (rHuEPO) administration studies involving transcriptomic approaches have demonstrated a gene expression signature that could aid blood doping detection. However, current anti-doping testing does not involve collecting whole blood into tubes with RNA preservative. This study investigated if whole blood in long-term storage and whole blood left over from standard hematological testing in short-term storage could be used for transcriptomic analysis despite lacking RNA preservation.Methods: Whole blood samples were collected from twelve and fourteen healthy nonathletic males, for long-term and short-term storage experiments. Long-term storage involved whole blood collected into Tempus™ tubes and K2EDTA tubes and subjected to long-term (i.e., ‒80°C) storage and RNA extracted. Short-term storage involved whole blood collected into K2EDTA tubes and stored at 4°C for 6‒48 h and then incubated at room temperature for 1 and 2 h prior to addition of RNA preservative. RNA quantity, purity, and integrity were analyzed in addition to RNA-Seq using the MGI DNBSEQ-G400 on RNA from both the short- and long-term storage studies. Genes presenting a fold change (FC) of >1.1 or < ‒1.1 with p ≤ 0.05 for each comparison were considered differentially expressed. Microarray analysis using the Affymetrix GeneChip® Human Transcriptome 2.0 Array was additionally conducted on RNA from the short-term study with a false discovery ratio (FDR) of ≤0.05 and an FC of >1.1 or < ‒1.1 applied to identify differentially expressed genes.Results: RNA quantity, purity, and integrity from whole blood subjected to short- and long-term storage were sufficient for gene expression analysis. Long-term storage: when comparing blood tubes with and without RNA preservation 4,058 transcripts (6% of coding and non-coding transcripts) were differentially expressed using microarray and 658 genes (3.4% of mapped genes) were differentially expressed using RNA-Seq. Short-term storage: mean RNA integrity and yield were not significantly different at any of the time points. RNA-Seq analysis revealed a very small number of differentially expressed genes (70 or 1.37% of mapped genes) when comparing samples stored between 6 and 48 h without RNA preservative. None of the genes previously identified in rHuEPO administration studies were differently expressed in either long- or short-term storage experiments.Conclusion: RNA quantity, purity, and integrity were not significantly compromised from short- or long-term storage in blood storage tubes lacking RNA stabilization, indicating that transcriptomic analysis could be conducted using anti-doping samples collected or biobanked without RNA preservation.

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