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887 results for “retention”
Data of Västilä & Jilbert (2024): Evaluating multiannual sedimentary nutrient retention in agricultural two-stage channels
<p>This dataset contains measured and modelled data on the flow-sediment-nutrient interactions in a two-stage (compound) agricultural channel in Sipoo, Finland. The whole dataset is analyzed by Västilä & Jilbert (2024), but parts of the data have been previously described and analyzed by <a href="https://www.tandfonline.com/doi/full/10.1080/15715124.2011.572888" target="_blank" rel="noopener">Västilä & Järvelä (2011)</a>, <a href="https://ascelibrary.org/doi/full/10.1061/%28ASCE%29HY.1943-7900.0001058" target="_blank" rel="noopener">Västilä et al. (2016)</a>, <a href="https://link.springer.com/article/10.1007%2Fs11368-017-1776-3" target="_blank" rel="noopener">Västilä & Järvelä (2018)</a> and <a href="https://www.mdpi.com/2071-1050/13/16/9349" target="_blank" rel="noopener">Västilä et al. (2021)</a>. The dataset contains three separate files: </p> <p>1) repeated elevation surveys of the cross-sectional geometry in six channel cross-sections in years 2010, 2012 and 2019 </p> <p>2) vertical distributions of total phosphorus, nitrogen, carbon and sulphur in the main channel bed, floodplain and channel bank sediments</p> <p>3) experimentally determined daily average discharges, suspended sediment loads and total phosphorus loads in years 2009-2012, as well as modelled daily average discharges and loads of suspended sediment, total phosphorus, total nitrogen and total organic carbon in years 2009-2019</p> <p>Brief metadata descriptions (read-me) are included in each Excel file. Further details are described in the original scientific publications listed below. </p> <p>Västilä, K. 2010. Cohesive sediment processes in vegetated flows: preliminary field study results. In Dittrich, A., Koll, Ka., Aberle, J. & Geisenhainer, P. (eds.), Proceedings of River Flow 2010, Fifth International Conference on Fluvial Hydraulics, 8–10 September 2010, Braunschweig, Germany, pp. 317–324. Bundesanstalt für Wasserbau, Karlsruhe. ISBN-13: 978-3939230007.</p> <p>Västilä, K. & Jilbert, T. 2024 Evaluating multiannual sedimentary nutrient retention in agricultural two-stage channels. Scientific Reports, doi: 10.1038/s41598-024-84956-2.</p> <p>Västilä, K. & Järvelä, J. 2011 Environmentally preferable two-stage drainage channels: considerations for cohesive sediments and conveyance. International Journal of River Basin Management, 9(3–4): 171–180. doi: 10.1080/15715124.2011.572888. </p> <p>Västilä, K. & Järvelä, J. 2018 Characterizing natural riparian vegetation for modeling of flow and suspended sediment transport. Journal of Soils and Sediments, 18(10): 3114–3130. doi: 10.1007/s11368-017-1776-3.</p> <p>Västilä, K., Järvelä, J., and Koivusalo, H. 2016 Flow–vegetation–sediment interaction in a cohesive compound channel. Journal of Hydraulic Engineering, 142(1): 04015034. doi:10.1061/(ASCE)HY.1943-7900.0001058.</p> <p>Västilä, K., Väisänen, S., Koskiaho, J., Lehtoranta, V., Karttunen, K., Kuussaari, M., Järvelä, J., Koikkalainen, K. 2021 Agricultural Water Management Using Two-Stage Channels: Performance and Policy Recommendations Based on Northern European Experiences. Sustainability, 13(16), 9349. doi: 10.3390/su13169349</p>
Retention fraction of 15N-labelled deposited ammonium and nitrate in forests
<p>The impacts of enhanced nitrogen (N) deposition on global forest carbon (C) sink and other ecosystem services may depend on whether N is deposited in reduced (mainly as ammonium) or oxidized forms (mainly as nitrate) and the subsequent fate of each. However, the fates of the two key reactive N forms and its contribution to forest C sink is unclear. W<span><span>e conducted ecosystem-scale paired <sup>15</sup>N-labelling experiments in nine forests across China to quantify N retention fractions for both deposited ammonium and nitrate, including tropical and sub-tropical forests for the first time. By combining these results with four previous experiments from temperate Europe and North America, here we show that total ecosystem N retention is similar for ammonium and nitrate, but plants consistently take up more of the labelled nitrate than ammonium<sup> </sup> while soils retain more ammonium than nitrate. Nitrogen retention in plants and soils across sites is predicted by a combination of tree (NPP and woody biomass) and soil (organic layer mass and soil C/N ratios) variables. Greater proportions of deposited N are retained in N-limited ecosystems with low soil N availability and high soil C/N ratios. We estimate that N deposition-induced C sink in forests contributes more than 20% of the total terrestrial C sink. Although less N is deposited in oxidized than reduced state, their total contributions to the global forest C sink are approximately equal due to more efficient use by trees of the oxidized than the reduced form. Our study demonstrates differential fates of reduced and oxidized N deposition that improves current understanding of the C-N interaction in forests and indicates a greater C sink attributable to atmospheric N deposition than previous estimates.</span></span></p>
Phosphorus supply increases nitrogen transformation rates and retention in soil: a global meta-analysis
<p>Interactions between nitrogen (N) and phosphorus (P) are important for plant growth and ecosystem carbon (C) sequestration. While effects of N supply on P dynamics have been much studied, much less is known about the opposite (P-effect on N). We conducted a meta-analysis by compiling a total of 1734 individual experimental observations from 116 peer-reviewed publications to assess P-addition effects on soil N dynamics. Globally, P additions increased the soil total N (TN) pool, potentially as a result of enhanced plant and microbial immobilization and reduced N losses, with a stronger effect detected under longer duration of P addition (≥ 5 years). A coupled increase in soil organic C with TN signifies the fundamental role of exogenous P supply in enhancing soil C sequestration. Phosphorus addition accelerated some of the soil N cycling processes including gross N mineralization, gross nitrification, and denitrification, with the effect sizes varying among ecosystem types and increasing with P addition rates. Our results indicate the fundamental role of P in affecting soil N pools and processes, and highlight the efficacy of P supply in sequestering soil C and mitigating global C emission.</p>
Matlab Dataset and Codes For the Article (Unsteady State Capillary Retention in Porous Media)
<p>The uploaded dataset and software codes contain the Matlab scripts used to solve the capillary retention equation numerically and output results (in the zip file). The file 'plot_article.m' contains the scripts used to display the results as figures attached in the article. </p>
Data from: The Effect of Watching Lecture Videos at 2x Speed on Memory Retention Performance of Medical Students: An Experimental Study
<p><strong>The study is accesible from here: </strong><a href="https://www.tandfonline.com/doi/full/10.1080/0142159X.2023.2189537">https://www.tandfonline.com/doi/full/10.1080/0142159X.2023.2189537</a><br> <br> <strong>Dataset Info</strong></p> <p># The first row of the dataset identifies the columns.<br> # The first column represents the participant ids.<br> # The second column represents the participants' universities (1 to 9 represent nine universities).<br> # The third column represents the years of participants in their six-year-long medical schools (1: Year-1 students, 2: Year-2 students).<br> # The fourth column represents the genders of participants (1: Female, 2: Male).<br> # The fifth column represents the speed that participants watched the video at (1: 1x Speed, 2: 2x Speed).<br> # The sixth to the twenty fifth columns (i_q1 to i_q20) represent the scores in the first to twentieth questions in the Immediate test, respectively (0: False, 1: True).<br> # The twenty sixth column (i_totalscore) represents the total score in the Immediate test.<br> # The twenty seventh to fourty sixth columns (d_q1 to d_q20) represent the scores in the first to twentieth questions in the Delayed test, respectively (0: False, 1: True).<br> # The fourty seventh column (d_totalscore) represents the total score in the Delayed test.</p>
Partner retention as a mechanism to reduce sexual conflict over care in a seabird
<p><span>The costs of caring for offspring are predicted to lead to an evolutionary conflict between parents, where each parent benefits if the other provides the majority of care. However, in many biparental species, breeding partners remain together for multiple breeding attempts and their respective future reproductive fitness prospects are therefore intertwined. Since an increase in current care by a long-term partner reduces that partner's future investment and longevity, individuals do not automatically only benefit when their partner provides care. We test whether selection will favour individuals that reduce the burden of care falling on long-term partners, thus decreasing evolutionary conflict over parental care. Using a semi-natural, captive colony of black-headed gulls (<em>Chroicocephalus ridibundus</em>), we show that benefits of long-term partner retention can indeed reduce sexual conflict. Long-term partners have less intense courtships and are more behaviourally compatible, and individuals in long-term pairs spare each other's resources by increasing their own parental investment compared to those with new partners. Lastly, we demonstrate that high partner compatibility in newly-formed pairs can select for commitment to the pair bond. Our results highlight that compatibility benefits of long-term partnerships can increase selection for mate retention and increase parental investment.</span></p>
ROS-Specific Huntingtin Interactions: huntingtin 1-586 chromatin retention assay with veliparib
<p>Testing chromatin retention of huntingtin fragment 1-586 upon PARP inhibition.</p>
Supplemental Figures S1-S8: Direct CD137 costimulation of CD8 T cells promotes retention and innate-like function within nascent atherogenic foci
<p>Supplemental Figures and Table S1-S8 for "Direct CD137 costimulation of CD8 T cells promotes retention and innate-like function within nascent atherogenic foci" H-00088-2019, to the American Journal of Physiology-Heart and Circulatory Physiology.</p>
Fig. 5 in Examining the retention of functional kleptoplasts and digestive activity in sacoglossan sea slugs
Fig. 5 Average chloroplast and lysosome density per specimen. The percentage of digestive gland tubule covered by lysosomes and chloroplasts. Chloroplasts are depicted in dark red triangles for the initial experiments where starved animals were examined and in light red diamonds where starved animals were allowed to feed again before staining and imaging. The lysosome areas measured in starved animals are shown by dark blue circles and the light blue squares correspond to re-fed animals. Each value was obtained by measuring the areas covered by chloroplasts and by lysosomes, independently, as well as the area covered by DGT and the area in NDGT tissue. The cp and lys areas were each divided by the DGT area (ROI in 3D-AMP) to produce the relative values graphed here. a Elysia timida (population 1, spring) adults were
Fig. 1 in Phylogeny and evolution of functional chloroplast retention in sacoglossan sea slugs (Gastropoda: Heterobranchia)
Fig. 1 Phylogenetic hypothesis for Sacoglossa based on the concatenated mitochondrial CO1, 16S and nuclear 28S, and H3 genes (50% majority rule consensus tree). Six siphonarioidean taxa were used as outgroups (Kocot et al., 2013; Krug et al., 2015). Topology and
Influence of Fiber Diameter of Polycaprolactone Nanofibrous Materials on Biofilm Formation and Retention of Bacterial Cells
Open the record for dataset details and reuse information.
FIG. 4 in Extended embryo retention, caecilian oviparity and amniote origins
FIG. 4. Stages in the early development of the oviparous Sri Lankan caecilian Ichthyophis glutinosus (reproduced from Sarasin and Sarasin [1887 –1890]). All of the stages illustrated were observed in eggs that had been laid.
FIG. 3 in Extended embryo retention, caecilian oviparity and amniote origins
FIG. 3. Alternative tetrapod phylogeny with the binary character, extended egg retention 'present' or 'absent', mapped on to the tree by MacClade (Maddison and Maddison, 1992). With caecilians coded present as in Laurin and Reisz (1997) but placed as the sister group of the salamanders (Urodela), the parsimonious interpretation is unambiguous and indicates the absence of EER in the ancestral amniote.
FIG. 1 in Extended embryo retention, caecilian oviparity and amniote origins
FIG. 1. Tetrapod phylogeny (after Laurin and Reisz, 1997) with the binary character, extended egg retention 'present' or 'absent', mapped on to the tree by MacClade (Maddison and Maddison, 1992). With caecilians coded 'present', as in Laurin and Reisz (1997), the condition of ancestral amniotes with respect to this character is ambiguous.
Video Time lapse du bassin de retention Django Reinhardt à Chassieu (Depuis 2020)
<p>Photographie une fois par jour du bassin de rétention depuis le bungalow OTHU pour le suivi de son évolution.</p>
Data for: Low protease activity in B cell follicles promotes retention of intact antigens after immunization
<p>The structural integrity of vaccine antigens is critical to the generation of protective antibody responses, but the impact of protease activity on vaccination in vivo is poorly understood. We characterized protease activity in lymph nodes and found that antigens were rapidly degraded in the subcapsular sinus, paracortex, and interfollicular regions, whereas low protease activity and antigen degradation rates were detected in the vicinity of follicular dendritic cells (FDCs). Correlated with these findings, immunization regimens designed to target antigen to FDCs led to germinal centers dominantly targeting intact antigen, whereas traditional immunizations led to much weaker responses that equally targeted the intact immunogen and antigen breakdown products. Thus, spatially compartmentalized antigen proteolysis affects humoral immunity and can be exploited.</p>
ART uptake and early retention among pregnant women screened HIV infected in informal health centers in Cameroon
<p><span>Informal health centers </span><span>are booming in Cameroon and are utilized by a large part of the population. Most of these IHCs have antenatal care services (ANC) and screen pregnant women for HIV. This dataset was collected in informal health centers in two cities in Cameroon: Douala and Yaounde.</span></p> <p><span>This dataset aimed at firstly, investigate the initiation of Antiretroviral therapy (ART) in pregnant women screened positive for HIV in antenatal care services of IHCs, three months after HIV screening as well as their retention at 3 months post-initiation. Secondly, study the association between this intiation and retention with type of PMTCT site or model of care ( IHCs that offered integrated ANC and ART, VS those that required referral to HIV care centers). Third, identifying associated factors to ART non-initiation in this population</span><span>.</span></p> <p>From January 2018 to July 2020, we carried out a cohort study of pregnant women attending their first ANC and screened HIV positive at IHCs in Cameroon. <span>Consenting participants were interviewed at three points: </span><span>the day of the delivery of the antenatal HIV test result, 3 months later and three months after ART initiation, using anonymous standardized questionnaires. The data collected were entered into Kobo collect and analyzed in SPSS V23.0 software.</span></p> <p>Descriptive statistics were performed. Frequencies and percentage for categorical variables; median and interquartile ranges for continuous variables. Proportions were used to calculate ART coverage and retention. Chi-square was used to compare the proportions of initiation of ART and retention between group of women screened in IHCs without ART and those screened in IHCs with ART integrated in antenatal care service. Logistic regression was used to identify factors associated to ART non-initiation at 95% confidence interval. Baseline variables were initially analyzed univariately and those which were significant at the level of 5% were retained for multivariable logistic regression. Baseline variables used for this purpose were type of PMTCT site, age group, study level, income generating activity, income generating activity of partner, relationship duration, Primiparity, Pregnancy willingness, perceived self-efficacy of being able to initiate ART.</p> <p>A total of 182 pregnant women living with HIV were enrolled in the study. At the first ANC, 91% (166/182) were naïve of ART. Among them, only 45% (74/166) initiated ART and 65% (48/74) of them were retained in ART 3 months later. PWLHIV screened in IHCs with no ART (aOR = 14.07, 95%CI: 4.68-42.32, p<0.001) and those who doubted their perceived capacity to initiate ART (aOR= 15.43, 95% CI: 4.45 to 53.44, p< 0.001) were more likely to not initiate ART</p> <p>Given the low enrollment in ART among pregnant women living with HIV, screened in informal health centers, and the early low retention among those who initiated ART, greater attention in PMTCT policies in Cameroon should be given to pregnant women screened positive for HIV during ANC in informal health centers, in order to guarantee them a continuum of PMTCT care.</p>
Processed dataset used to train models in the study "Integrative modeling of lncRNA-chromatin interaction maps reveals diverse mechanisms of nuclear retention"
<p>The processed dataset used to train models in the study "Integrative modeling of lncRNA-chromatin interaction maps reveals diverse mechanisms of nuclear retention".</p>
Retention time with molecular mass detection for pemetrexed, PEG, GABA, Pemetrexed-PEG conjugate, Pemetrexed-GABA conjugate
<p>This data represent the Retention time with molecular mass detection for pemetrexed, PEG, GABA, Pemetrexed-PEG conjugate, Pemetrexed-GABA conjugate</p>
PUL vs TURP in BPH Patients With Urinary Retention
ClinicalTrials.gov study NCT06037356. IPD Sharing: NO. Countries: 1. Publications: 11.
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