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Dietary fibre intakes of two cohorts of New Zealand adults with and without constipation
- H.M. Ng, J. Maggo, C. Wall, S. Bayer, N.C. Roy, R. Gearry
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- Journal:
- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E72
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Adequate dietary fibre (DF) intake is recommended to relieve constipation and improve gut health(1). It is often assumed that individuals with constipation have relatively low DF intake and do not meet the recommended adequate intake of 25 g and 30 g for females and males, respectively. The 2008/09 New Zealand Adult Nutrition Survey confirmed that the mean DF was 17.9 grams (g) per day for females and 22.8 g per day for males, which was well below the recommended adequate intake(2). With the continuous shift of dietary patterns over time, we sought to compare the current usual DF intake of two cohorts of New Zealand adults: those who have constipation with those without constipation but with relatively low DF intake. We report baseline dietary data from two randomised controlled dietary studies (Kiwifruit Ingestion to Normalise Gut Symptoms (KINGS) (ACTRN12621000621819) and Bread Related Effects on microbiAl Distribution (BREAD) (ACTRN12622000884707)) conducted in Christchurch, New Zealand in 2021 and 2022, respectively. The KINGS study included adults with either functional constipation or constipation-predominant irritable bowel syndrome to consume either two green kiwifruit or maltodextrin for four weeks. The BREAD study is a crossover study and included healthy adults without constipation but with relatively low DF intake (<18 g for females, <22 g for males) to consume two types of bread with different DF content, each bread for four weeks separated by a two-week washout period. All participants completed a non-consecutive three-day food diary at baseline. Dietary data were entered into FoodWorks Online Professional (Xyris Software Australia, 2021) to assess mean daily DF intake. Fifty-six adults from the KINGS study (n = 48 females, n= 8 males; mean age ± standard deviation: 42.8 ± 12.6 years) and BREAD study (n = 33 females, n= 23 males; mean age: 40.4 ± 13.4 years) completed a baseline food diary. In the KINGS study, females with constipation had a daily mean DF intake of 25.0 ± 9.4 g whilst male participants consumed 26.9 ± 5.0 g per day. In the BREAD study, females without constipation had a mean daily DF intake of 19.4 ± 5.8 g, whereas males had 22.6 ± 8.5 g per day. There was a statistically significant difference in the mean daily DF intake between females with constipation and those without constipation (p < 0.001) but not between males (p = 0.19). These two studies found that DF intakes among females with constipation were not as relatively low as previously assumed, as they met their adequate intake of 25 g. Further data analysis from the KINGS and BREAD studies will reveal the effects of using diet to manage constipation and promote better gut health in these two cohorts of New Zealand adults.
16 Validation of the Pillbox Test in a Veteran Sample: A Replication Study.
- Frances M. Bozsik, Timothy J. Arentsen, Brad L. Roper, Jessica M. Fett, Marcy C. Adler, Jennifer L. Jacobson, Charlotte Bayer
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- Journal:
- Journal of the International Neuropsychological Society / Volume 29 / Issue s1 / November 2023
- Published online by Cambridge University Press:
- 21 December 2023, pp. 699-700
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Objective:
Assessment of medication management, an instrumental activity of daily living (IADL), is particularly important among Veterans, who are prescribed an average of 2540 prescriptions per year (Nguyen et al., 2017). The Pillbox Test (PT) is a brief, performance-based measure that was designed as an ecologically valid measure of executive functioning (EF; Zartman, Hilsabeck, Guarnaccia, & Houtz, 2013), the cognitive domain most predictive of successful medication schedule management (Suchy, Ziemnik, Niermeyer, & Brothers, 2020). However, a validation study by Logue, Marceaux, Balldin, and Hilsabeck (2015) found that EF predicted performance on the PT more so than processing speed (PS), but not the language, attention, visuospatial, and memory domains combined. Thus, this project sought to increase generalizability of the latter study by replicating and extending their investigation utilizing a larger set of neuropsychological tests.
Participants and Methods:Participants included 176 patients in a mixed clinical sample (5.1% female, 43.2% Black/African American, 55.7% white, Mage = 70.7 years, SDage = 9.3, Medu = 12.6 years, SDedu = 2.6) who completed a comprehensive neuropsychological evaluation in a VA medical center. All participants completed the PT where they had five minutes to organize five pill bottles using a seven-day pillbox according to standardized instructions on the labels. Participants also completed some combination of 26 neuropsychological tests (i.e., participants did not complete every test as evaluations were tailored to disparate referral questions). Correlations between completed tests and number of pillbox errors were evaluated. These tests were then combined into the following six domains: language, visuospatial, working memory (WM), psychomotor/PS, memory, and EF. Hierarchical multiple regression was completed using these domains to predict pillbox errors.
Results:Spearman’s correlation coefficients indicated that 25 tests had a weak to moderate relationship with PT total errors (rs = 0.23 -0.51); forward digit span was not significantly related (rs = 0.13). A forced-entry multiple regression was run to predict PT total errors from the six domains. The model accounted for 29% of the variance in PT performance, F(6, 169) = 11.56, p < .001. Of the domains, psychomotor/PS made the greatest contribution, f(169) = 2.73, p = .007, followed by language, f(169) = 2.41, p = .017, and WM, f(169) = 2.15, p = .033. Visuospatial performance and EF did not make significant contributions (ps>.05). Next, two hierarchical multiple regressions were run. Results indicated that EF predicted performance on the PT beyond measures of PS, AR2 = .02, p = .044, but not beyond the combination of all cognitive domains, AR2 = .00, p = .863.
Conclusions:Results of this study partially replicated the findings of Logue et al. (2015). Namely, EF predicted PT performance beyond PS, but not other cognitive domains. However, when all predictors were entered into the same model, visuospatial performance did not significantly contribute to the prediction of pillbox errors. These results suggest that providers may benefit from investigating medication management abilities when deficits in PS, WM, and/or language are identified. Further research is needed to better understand which domains best predict PT failure.
Single indium atoms and few-atom indium clusters anchored onto graphene via silicon heteroatoms
- Kenan Elibol, Clemens Mangler, David D. O'Regan, Kimmo Mustonen, Dominik Eder, Jannik C. Meyer, Jani Kotakoski, Richard G. Hobbs, Peter A. van Aken, Toma Susi, Bernhard C. Bayer
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- Journal:
- Microscopy and Microanalysis / Volume 27 / Issue S1 / August 2021
- Published online by Cambridge University Press:
- 30 July 2021, pp. 3346-3347
- Print publication:
- August 2021
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P03-68 - Are there effects of the type of antipsychotic medication on the subjective quality of life in patients suffering from schizophrenia?
- S. Jaeger, T. Steinert, C. Pfiffner, G. Längle, G. Eschweiler, W. Bayer, D. Croissant, P. Weiser, T. Becker, R. Kilian
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- Journal:
- European Psychiatry / Volume 25 / Issue S1 / 2010
- Published online by Cambridge University Press:
- 17 April 2020, 25-E1178
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We investigated whether the type of antipsychotic treatment has an impact on patients’ subjective quality of life (QoL).
In a prospective naturalistic long-term study, 374 patients meeting ICD-10 criteria for schizophrenia or schizoaffective disorder were examined biannually over a two-year period with regards to QoL, psychopathology, social functioning, use of medical and psychosocial services, compliance, side effects and current neuroleptic treatment. QoL was assessed by the Berliner Lebensqualitätsprofil (BeLP), an adaption of the Lancashire Quality of Life Profile. First examination took place two weeks around discharge from a psychiatric clinic. At study entry, all participants were receiving neuroleptic medication of either quetiapine, risperidone or olanzapine. Mixed regression analysis taking into account the unbalanced panel structure of the data and adjusted for selection bias by means of propensity scores were used for data analysis.
Overall quality of life improved continuously during the two years observed period regardless of the type of neuroleptic. A small, but significant difference emerged when comparing quetiapine monotherapy treatment with olanzapine monotherapy or with a combination treatment of conventional and atypical antipsychotics. QoL of patients treated with olanzapine was generally worse than that of patients treated with quetiapine but improved slightly more over the course of time. In total time and type of medication explained only small proportions of variance in QoL.
Type of neuroleptic had only marginal impact on the subjective QoL of our sample. In order to explain changes in quality of life, research on social and individual factors seems to be more promising.
PW01-186 - Effects Of Longterm Treatment With Atypical Neuroleptics For Patients With Schizophrenia (Elan): Medication Use, Adherence, Functional Impairment, Quality Of Life
- G. Laengle, W. Bayer, G. Eschweiler, S. Jäger, C. Pfiffner, P. Weiser, D. Croissant, R. Kilian, T. Becker, T. Steinert
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- Journal:
- European Psychiatry / Volume 25 / Issue S1 / 2010
- Published online by Cambridge University Press:
- 17 April 2020, 25-E1593
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Objectives
Collecting prospective data on medication adherence, course of illness, course of treatment, cost effectiveness and quality of life among patients with schizophrenia under the German health system.
MethodsThe ELAN study was conducted as a multi-centre, non-interventional observation study. 374 patients with a diagnosis of schizophrenia or schizoaffective disorder (ICD-10 F2) who had been discharged with a medication of quetiapine (N=183), olanzapine (N=91) or risperidone (N=100) were included. Follow-up interviews were conducted after 6,12,18 and 24 months. Applied instruments comprised PANSS, MARS-S, EPS-M, AIMS-S, GAF, ZST and a questionnaire for quality of life.
ResultsFor each follow-up, at least 80% of the original sample could be included. After two years, between 39% and 43% of patients continued to take the drug prescribed at discharge. Only between 4% and 7% of patients received no neuroleptic treatment in the last 6 months, respectively. The variety of drugs used increased during the course. Only small differences could be found regarding the defined outcome measures (PANSS, GAF, rehospitalisation rate) and side effects. Changes in medication were mostly due to insufficient efficacy or side effects. Doctor's recommendations had an important influence on patients’ decisions.
ConclusionsUnder conditions of routine treatment, medication adherence was much greater and differences between drugs were smaller than reported in randomised controlled clinical trials. Taking into account the low sample selection bias and the small percentage of lost-to-follow-up subjects, this study provides some new insight into routine clinical treatment and outcomes in patients with schizophrenia.
A Multi-Centre Pragmatic Trial of Antipsychotic Drug Treatment
- R. Kilian, T. Steinert, P. Weiser, W. Bayer, S. Jaeger, C. Pfiffner, K. Frasch, G. Eschweiler, T. Messer, D. Croissant, T. Becker, G. Längle
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- Journal:
- European Psychiatry / Volume 26 / Issue S2 / March 2011
- Published online by Cambridge University Press:
- 16 April 2020, p. 2203
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The ELAN study is a prospective multi centre observational trial on the effectiveness and safety of long-term antipsychotic treatment of people with schizophrenia or schizoaffective disorders with quetiapine in comparison to olanzapine and risperidone under real world treatment conditions.
374 adult persons with schizophrenia or schizoaffective disorder prescribed antipsychotic maintenance therapy with quetiapine, olanzapine or risperidone were included at discharge from inpatient treatment. Psychotropic regimen, psychopathological symptoms, general and cognitive functioning, negative side-effects and quality of life were assessed before discharge and at 6, 12, 18 and 24 month follow-up assessments. Intention-to-treat analyses and crossover analyses were conducted by mixed-effects regression models including random linear time effects and time x treatment effects, controlling for baseline differences and additional psychotropic medication and using propensity scores to control for selection bias.
As indicated by significant linear time effects the patients improved with regard to psychopathological symptoms, general functioning, subjective quality of life and cognitive processing speed. No change of extrapyramidal motor side-effects, body mass index or waist circumference was obtained. The lack of any significant time x treatment interaction effects indicated no differences in the safety or effectiveness between the three antipsychotics. Nevertheless, the average hospital admission rate of patients receiving olanzapine was lower in comparison to patients receiving quetiapine or risperidone.
O-29 - Botulinum Neurotoxin for Treatment of Depression
- T.H.C. Kruger, C. de Boer, N. Kalak, J. Beck, T. Götz, T. Schmidt, M. Hodzic, U. Bayer, T. Kollmann, K. Kollewe, D. Sönmez, K. Duntsch, M.D. Haug, D. Dressler, M. Schedlowski, M. Hatzinger, S. Brand, E. Holsboer-Trachsler, M.A. Wollmer
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- European Psychiatry / Volume 27 / Issue S1 / 2012
- Published online by Cambridge University Press:
- 15 April 2020, p. 1
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Introduction
Frowning expresses negative emotions like anger, fear, and sadness. According to the facial feedback hypothesis, suppression of frowning will also diminish the corresponding negative emotions. Hence, mood improvement has been observed in patients who underwent treatment of glabellar frown lines with botulinum neurotoxin. This observation suggests the possibility that the intervention may be employed for the management of psychiatric disorders associated with negative emotions. Preliminary data from an open case series indicate that the intervention might improve the symptoms of depression.
Aims & objectivesTo test whether an onabotulinumtoxinA injection into the glabellar region is benefical as an adjunctive treatment of major depression within a clinical trial.
MethodsWe used a randomized, double-blinded, placebo-controlled study design (n = 30; ClinicalTrials.gov, number, NCT00934687).
ResultsWe show that a single onabotulinumtoxinA treatment shortly leads to a strong and sustained improvement in partly chronic major depression that did not respond sufficiently to previous treatment. As for the primary end-point, Hamilton Depression Rating Scale (HAM-D17) six weeks after treatment compared to baseline, scores of onabotulinumtoxinA recipients showed 37.9% (8.34 points) more improvement than those of placebo-treated participants (F = 12.30, p = 0.002, η2 = 0.31, d = 1.28).
ConclusionOur findings support the concept that the facial musculature not only expresses, but also regulates, mood states. As it stands, treatment of glabellar frown lines with botulinum neurotoxin can be considered for depressed patients with the objective of inducing mood-lifting effects.
Carbohydrate-rich supplements can improve nitrogen use efficiency and mitigate nitrogenous gas emissions from the excreta of dairy cows grazing temperate grass
- J. G. R. Almeida, A. C. Dall-Orsoletta, M. M. Oziemblowski, G. M. Michelon, C. Bayer, N. Edouard, H. M. N. Ribeiro-Filho
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Temperate pasture species constitute a source of protein for dairy cattle. On the other hand, from an environmental perspective, their high N content can increase N excretion and nitrogenous gas emissions by livestock. This work explores the effect of energy supplementation on N use efficiency (NUE) and nitrogenous gas emissions from the excreta of dairy cows grazing a pasture of oat and ryegrass. The study was divided into two experiments: an evaluation of NUE in grazing dairy cows, and an evaluation of N-NH3 and N-N2O volatilizations from dairy cow excreta. In the first experiment, 12 lactating Holstein × Jersey F1 cows were allocated to a double 3 × 3 Latin square (three experimental periods of 17 days each) and subjected to three treatments: cows without supplementation (WS), cows supplemented at 4.2 kg DM of corn silage (CS) per day, and cows supplemented at 3.6 kg DM of ground corn (GC) per day. In the second experiment, samples of excreta were collected from the cows distributed among the treatments. Aliquots of dung and urine of each treatment plus one blank (control – no excreta) were allotted to a randomized block design to evaluate N-NH3 and N-N2O volatilization. Measurements were performed until day 25 for N-NH3 and until day 94 for N-N2O. Dietary N content in the supplemented cows was reduced by 20% (P < 0.001) compared with WS cows, regardless of the supplement. Corn silage cows had lower N intake (P < 0.001) than WS and GC cows (366 v. 426 g/day, respectively). Ground corn supplementation allowed cows to partition more N towards milk protein compared with the average milk protein of WS cows or those supplemented with corn silage (117 v. 108 g/day, respectively; P < 0.01). Thus, even though they were in different forms, both supplements were able to increase (P < 0.01) NUE from 27% in WS cows to 32% in supplemented cows. Supplementation was also effective in reducing N excretion (761 v. 694 g/kg of Nintake; P < 0.001), N-NH3 emission (478 v. 374 g/kg of Nmilk; P < 0.01) and N-N2O emission (11 v. 8 g/kg of Nmilk; P < 0.001). Corn silage and ground corn can be strategically used as feed supplements to improve NUE, and they have the potential to mitigate N-NH3 and N-N2O emissions from the excreta of dairy cows grazing high-protein pastures.
Metabolism of Amitrole in Excised Leaves of Canada Thistle Ecotypes and Bean
- L. W. Smith, D. E. Bayer, C. L. Foy
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- Journal:
- Weed Science / Volume 16 / Issue 4 / October 1968
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- 12 June 2017, pp. 523-527
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Excised leaves of Canada thistle (Cirsium arvense (L.) Scop.) ecotypes and bean (Phaseolus vulgaris L., var. Red Kidney) metabolized 3-amino-l,2,4-triazole-14C (amitrole) to the same radiolabeled products, but they were produced at different rates as shown by thin-layer and paper chromatography. Bean leaves metabolized amitrole to a metabolic product (Unknown II) probably β-(3-amino-1,2,4-triazolyl-1-) α-alanine approximately three times taster than Canada thistle leaves, while Canada thistle converted Unknown II to another product (Unknown I) about 10 times faster than did bean. Thus Unknown II accumulated in bean, and Unknown I in Canada thistle. This reaction sequence in Canada thistle was evidently an irreversible consecutive first order reaction. A difference in the rate of metabolism was observed between susceptible and resistant ecotypes of Canada thistle.
Influence of Environmental and Chemical Factors on Amitrole Metabolism in Excised Leaves
- L. W. Smith, D. E. Bayer, C. L. Foy
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- Journal:
- Weed Science / Volume 16 / Issue 4 / October 1968
- Published online by Cambridge University Press:
- 12 June 2017, pp. 527-530
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Several factors were studied which influenced 3-amino-1,2,4-triazole (amitrole) metabolism in excised leaves of bean (Phaseolus vulgaris L., var. Red Kidney) and Canada thistle (Cirsium arvense (L.) Scop.) ecotypes. Amitrole metabolism in the leaves of both species held in the light was greater than in leaves held in the dark. Increasing the temperature from 15 C to 28 C also stimulated the rate of metabolism of amitrole. However, this effect was much less pronounced when the temperature was increased from 22 C to 28 C. Dipping the leaves in 10−2M ammonium thiocyanate reduced the metabolism of amitrole, whereas similar pre-treatment with 3.5 × 10−3M 6N-benzyladenine enhanced the metabolism of amitrole.
Herbage intake, methane emissions and animal performance of steers grazing dwarf elephant grass v. dwarf elephant grass and peanut pastures
- E. A. Andrade, E. X. Almeida, G. T. Raupp, M. F. Miguel, D. M. de Liz, P. C. F. Carvalho, C. Bayer, H. M. N. Ribeiro-Filho
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Management strategies for increasing ruminant legume consumption and mitigating methane emissions from tropical livestock production systems require further study. The aim of this work was to evaluate the herbage intake, animal performance and enteric methane emissions of cattle grazing dwarf elephant grass (DEG) (Pennisetum purpureum cv. BRS Kurumi) alone or DEG with peanut (Arachis pintoi cv. Amarillo). The experimental treatments were the following: DEG pastures receiving nitrogen fertilization (150 kg N/ha as ammonium nitrate) and DEG intercropped with peanut plus an adjacent area of peanut that was accessible to grazing animals for 5 h/day (from 0700 to 1200 h). The animals grazing legume pastures showed greater average daily gain and herbage intake, and shorter morning and total grazing times. Daily methane emissions were greater from the animals grazing legume pastures, whereas methane emissions per unit of herbage intake did not differ between treatments. Allowing animals access to an exclusive area of legumes in a tropical grass-pasture-based system can improve animal performance without increasing methane production per kg of dry matter intake.
Exploring Low-dimensional Carbon Materials by High-resolution Electron and Scanned Probe Microscopy
- Jannik C. Meyer, Jani Kotakoski, Giacomo Argentero, Clemens Mangier, Bernhard Bayer, Christian Kramberger-Kaplan, Franz Eder, Stefan Hummel, Kenan Elibol, Andreas Mittelberger
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- Journal:
- Microscopy and Microanalysis / Volume 21 / Issue S3 / August 2015
- Published online by Cambridge University Press:
- 23 September 2015, pp. 1147-1148
- Print publication:
- August 2015
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Contributors
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- By Masoud Azodi, Patricia Baetens, Steven Bayer, Joel Bernstein, Jonathan D. Black, Christophe Blockeel, Carolien M. Boomsma, Birgit Borgström, Mark Bowman, Nicholas Brook, Elisabeth Carlsen, Peter Carne, Ying Cheong, Jen-Ruei Chen, Erin Clark, S. Alberto Dávila Garza, Sunita De Sousa, Michel De Vos, Leo Doherty, Patricio Donoso, Cindy M. P. Duke, Human M. Fatemi, Alison Fernbach, Juan A. Garcia-Velasco, Elizabeth S. Ginsburg, Dorothy A. Greenfeld, William M. Hague, Daniel Hajioff, Tristan Hardy, Catherine Henry, Outi Hovatta, John Hutton, Gordana Ivanovic, Sameer Jatkar, Shilpa Jesudason, Theo Joseph, Amanda Kallen, Sonal Karia, Bala Karunakaran, Jenneke C. Kasius, Ben Kroon, Dimitra Kyrou, Robert Lahoud, Jennifer M Levine, Inge Liebaers, Shane T. Lipskind, Derek Lok, Nick S. Macklon, Manveen (Manny) Mangat, Tom P. Manolitsas, S. McDowell, Cherise Mooy, Mark R. Morton, Andrew Murray, Robert J. Norman, Sara Ornaghi, Israel Ortega, Michael J. Paidas, Evaggelos Papanikolaou, Pasquale Patrizio, Sofie Piessens, Biljana Popovic Todorovic, Luk Rombauts, Katrina Rowan, Denny Sakkas, P. Sanhueza, Kirsten Tryde Schmidt, Mark Teoh, Hammed A. Tijani, Jelena Todorovic, Saioa Torrealday, Herman Tournaye, Geoffrey Trew, W. Verpoest, Veerle Vloeberghs, A. Yazdani
- Edited by Nick S. Macklon, University of Southampton, Human M. Fatemi, Robert J. Norman, University of Adelaide, Pasquale Patrizio
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- Book:
- Case Studies in Assisted Reproduction
- Published online:
- 05 February 2015
- Print publication:
- 22 January 2015, pp ix-xiv
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Engineered Bone-Inspired Multicomponent Bionanocomposite Scaffolds with Tunable Hardness and Modulus
- Matthew Labriola, Constance Slaboch, Timothy C. Ovaert, Tao Wang, George Csaba, Ilker S. Bayer, Enkeleda Dervishi, Alexandru S. Biris, Anindya Ghosh, Rajeev Gupta, Abhijit Biswas
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- Journal:
- MRS Online Proceedings Library Archive / Volume 1465 / 2012
- Published online by Cambridge University Press:
- 12 June 2012, mrss12-1465-ss02-05
- Print publication:
- 2012
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We show a novel, bioengineered, moldable platform for bone regeneration composed of porous bionanocomposite scaffolds made of components that are normally found in bone tissue (calcium, collagen, carbonate, sodium, and phosphorous). To accommodate high- or low-stress environments, the hardness and modulus (stiffness) of these scaffolds can be tuned in a wide range in Megapascal (MPa) to Gigapascal (GPa) regions, while maintaining the required viscoelasticity. Our approach to control the mechanical properties is based on a new formulation of mineralized bioscaffolds by incorporation of calcium carbonate in which, calcium and phosphorous are in the form of calcite, calcium polyphosphate (CPP) and hydroxyapatite (HAP). The variation in the calcium carbonate concentration allows tuning of calcite/CPP contents in the bioscaffold to tailor the degree of mineralization and mechanical and viscoelastic properties that closely match those of natural bone. Our results demonstrate an ideal framework for new bone scaffold designs for advanced bone substitute applications.
Contributors
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- By Rose Teteki Abbey, K. C. Abraham, David Tuesday Adamo, LeRoy H. Aden, Efrain Agosto, Victor Aguilan, Gillian T. W. Ahlgren, Charanjit Kaur AjitSingh, Dorothy B E A Akoto, Giuseppe Alberigo, Daniel E. Albrecht, Ruth Albrecht, Daniel O. Aleshire, Urs Altermatt, Anand Amaladass, Michael Amaladoss, James N. Amanze, Lesley G. Anderson, Thomas C. Anderson, Victor Anderson, Hope S. Antone, María Pilar Aquino, Paula Arai, Victorio Araya Guillén, S. Wesley Ariarajah, Ellen T. Armour, Brett Gregory Armstrong, Atsuhiro Asano, Naim Stifan Ateek, Mahmoud Ayoub, John Alembillah Azumah, Mercedes L. García Bachmann, Irena Backus, J. Wayne Baker, Mieke Bal, Lewis V. Baldwin, William Barbieri, António Barbosa da Silva, David Basinger, Bolaji Olukemi Bateye, Oswald Bayer, Daniel H. Bays, Rosalie Beck, Nancy Elizabeth Bedford, Guy-Thomas Bedouelle, Chorbishop Seely Beggiani, Wolfgang Behringer, Christopher M. Bellitto, Byard Bennett, Harold V. Bennett, Teresa Berger, Miguel A. Bernad, Henley Bernard, Alan E. Bernstein, Jon L. Berquist, Johannes Beutler, Ana María Bidegain, Matthew P. Binkewicz, Jennifer Bird, Joseph Blenkinsopp, Dmytro Bondarenko, Paulo Bonfatti, Riet en Pim Bons-Storm, Jessica A. Boon, Marcus J. Borg, Mark Bosco, Peter C. Bouteneff, François Bovon, William D. Bowman, Paul S. Boyer, David Brakke, Richard E. Brantley, Marcus Braybrooke, Ian Breward, Ênio José da Costa Brito, Jewel Spears Brooker, Johannes Brosseder, Nicholas Canfield Read Brown, Robert F. Brown, Pamela K. Brubaker, Walter Brueggemann, Bishop Colin O. Buchanan, Stanley M. Burgess, Amy Nelson Burnett, J. Patout Burns, David B. Burrell, David Buttrick, James P. Byrd, Lavinia Byrne, Gerado Caetano, Marcos Caldas, Alkiviadis Calivas, William J. Callahan, Salvatore Calomino, Euan K. Cameron, William S. Campbell, Marcelo Ayres Camurça, Daniel F. Caner, Paul E. Capetz, Carlos F. Cardoza-Orlandi, Patrick W. Carey, Barbara Carvill, Hal Cauthron, Subhadra Mitra Channa, Mark D. Chapman, James H. Charlesworth, Kenneth R. Chase, Chen Zemin, Luciano Chianeque, Philip Chia Phin Yin, Francisca H. Chimhanda, Daniel Chiquete, John T. Chirban, Soobin Choi, Robert Choquette, Mita Choudhury, Gerald Christianson, John Chryssavgis, Sejong Chun, Esther Chung-Kim, Charles M. A. Clark, Elizabeth A. Clark, Sathianathan Clarke, Fred Cloud, John B. Cobb, W. Owen Cole, John A Coleman, John J. Collins, Sylvia Collins-Mayo, Paul K. Conkin, Beth A. Conklin, Sean Connolly, Demetrios J. Constantelos, Michael A. Conway, Paula M. Cooey, Austin Cooper, Michael L. Cooper-White, Pamela Cooper-White, L. William Countryman, Sérgio Coutinho, Pamela Couture, Shannon Craigo-Snell, James L. Crenshaw, David Crowner, Humberto Horacio Cucchetti, Lawrence S. Cunningham, Elizabeth Mason Currier, Emmanuel Cutrone, Mary L. Daniel, David D. Daniels, Robert Darden, Rolf Darge, Isaiah Dau, Jeffry C. Davis, Jane Dawson, Valentin Dedji, John W. de Gruchy, Paul DeHart, Wendy J. Deichmann Edwards, Miguel A. De La Torre, George E. Demacopoulos, Thomas de Mayo, Leah DeVun, Beatriz de Vasconcellos Dias, Dennis C. Dickerson, John M. Dillon, Luis Miguel Donatello, Igor Dorfmann-Lazarev, Susanna Drake, Jonathan A. Draper, N. Dreher Martin, Otto Dreydoppel, Angelyn Dries, A. J. Droge, Francis X. D'Sa, Marilyn Dunn, Nicole Wilkinson Duran, Rifaat Ebied, Mark J. Edwards, William H. Edwards, Leonard H. Ehrlich, Nancy L. Eiesland, Martin Elbel, J. Harold Ellens, Stephen Ellingson, Marvin M. Ellison, Robert Ellsberg, Jean Bethke Elshtain, Eldon Jay Epp, Peter C. Erb, Tassilo Erhardt, Maria Erling, Noel Leo Erskine, Gillian R. Evans, Virginia Fabella, Michael A. Fahey, Edward Farley, Margaret A. Farley, Wendy Farley, Robert Fastiggi, Seena Fazel, Duncan S. Ferguson, Helwar Figueroa, Paul Corby Finney, Kyriaki Karidoyanes FitzGerald, Thomas E. FitzGerald, John R. Fitzmier, Marie Therese Flanagan, Sabina Flanagan, Claude Flipo, Ronald B. Flowers, Carole Fontaine, David Ford, Mary Ford, Stephanie A. Ford, Jim Forest, William Franke, Robert M. Franklin, Ruth Franzén, Edward H. Friedman, Samuel Frouisou, Lorelei F. Fuchs, Jojo M. Fung, Inger Furseth, Richard R. Gaillardetz, Brandon Gallaher, China Galland, Mark Galli, Ismael García, Tharscisse Gatwa, Jean-Marie Gaudeul, Luis María Gavilanes del Castillo, Pavel L. Gavrilyuk, Volney P. Gay, Metropolitan Athanasios Geevargis, Kondothra M. George, Mary Gerhart, Simon Gikandi, Maurice Gilbert, Michael J. Gillgannon, Verónica Giménez Beliveau, Terryl Givens, Beth Glazier-McDonald, Philip Gleason, Menghun Goh, Brian Golding, Bishop Hilario M. Gomez, Michelle A. Gonzalez, Donald K. Gorrell, Roy Gottfried, Tamara Grdzelidze, Joel B. Green, Niels Henrik Gregersen, Cristina Grenholm, Herbert Griffiths, Eric W. Gritsch, Erich S. Gruen, Christoffer H. Grundmann, Paul H. Gundani, Jon P. Gunnemann, Petre Guran, Vidar L. Haanes, Jeremiah M. 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Yee, Viktor Yelensky, Yeo Khiok-Khng, Gustav K. K. Yeung, Angela Yiu, Amos Yong, Yong Ting Jin, You Bin, Youhanna Nessim Youssef, Eliana Yunes, Robert Michael Zaller, Valarie H. Ziegler, Barbara Brown Zikmund, Joyce Ann Zimmerman, Aurora Zlotnik, Zhuo Xinping
- Edited by Daniel Patte, Vanderbilt University, Tennessee
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- The Cambridge Dictionary of Christianity
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- 05 August 2012
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- 20 September 2010, pp xi-xliv
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Radiochemistry measurements on the Phebus laser
- D. Schirmann, C. Bayer, J. P. Garçonnet, D. Juraszek, A. Bertin, G. Grenier
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- Laser and Particle Beams / Volume 10 / Issue 4 / December 1992
- Published online by Cambridge University Press:
- 09 March 2009, pp. 585-597
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We are developing neutron diagnostics to characterize the implosions performed with the Phebus laser, operating at 5 kJ blue light delivered in 1·3 ns. For measuring the glass pusher areal density, (ρΔR), of the target, a silicon radiochemistry diagnostic has been implemented and is currently being used. We describe the diagnostic and its performance. Pusher areal density measurements, (ρΔR) and calculated values of fuel density are given. Deuterium (D)-tritium (T) final densities as high as 100 × D-T liquid density (20 g/cm3) have been achieved.
Progress in inertial confinement fusion physics at Centre d'Etudes de Limeil-Valenton
- M. André, D. Babonneau, C. Bayer, M. Bernard, J-L. Bocher, J. Bruneau, A. Coudeville, J. Coutant, R. Dautray, A. Decoster, M. Decroisette, D. Desenne, J-M. Dufour, J-P. Garçonnet, P-A. Holstein, J-P. Jadaud, A. Jolas, D. Juraszek, J. Lachkar, P. Lascaux, J-P. Le Breton, M. Louis-Jacquet, B. Meyer, F. Mucchielli, C. Rousseaux, D. Schirmann, G. Schurtz, D. Véron, J-P. Watteau
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- Laser and Particle Beams / Volume 12 / Issue 3 / September 1994
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- 09 March 2009, pp. 329-342
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The laser program developed at the Centre d'Etudes de Limeil-Valenton, Saint-Georges, France (CEL-V) is concentrated on a systematic investigation of indirect drive fusion; by comparison with direct drive, this process is expected to provide the required irradiation uniformity with relaxed constraints on laser beam quality. The main concerns are radiative transfer and preheat, hydrodynamic instabilities, and high-density X-ray driven implosions. Ablative implosion experiments have been conducted with the two beams at the Phebus facility (5 kJ, 1.3 ns, 0.35 μm). Symmetry was proved to be controlled by the casing structure, following scaling laws describing hohlraum physics. A compressed DT density ∼100 ρ0 (ρ0 liquid DT density) has been deduced from activation measurements. Different aspects of the soft X-ray transfer processes, and particularly of the ablation of a low-Z material, which drives the capsule implosion, are dealt with in detailed investigations. Reported here are results on X-ray reemission and penetration in several materials, and on induced hydrodynamics of accelerated foils. The laser energy required to reach fuel ignition conditions has been evaluated from numerical simulations as well as from analytical models, taking into account hohlraum physics, capsule implosion, hot spot formation, and burn propagation. Several crucial parameters have been drawn, the most important being the radiation temperature. A target gain in the order of 10 appears achievable with a 2-MJ laser.
ICF-related experiments at CEL-V
- M. Andre, C. Bayer, D. Babonneau, M. Bernard, J. L. Bocher, J. Bruneau, A. Coudeville, J. Coutant, R. Dautray, A. Decoster, M. Decroisette, D. Desenne, B. Duborgel, J. M. Dufour, J. P. Jadaud, D. Juraszek, J. P. Garçonnet, P. A. Holstein, J. Lachkar, M. Louis-Jacquet, F. Mucchielli, B. Meyer, J. P. Lebreton, J. Ouvry, D. Schirmann, G. Schurtz, D. Véron, J. P. Watteau
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- Laser and Particle Beams / Volume 10 / Issue 4 / December 1992
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- 09 March 2009, pp. 557-571
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Implosion experiments performed at Centre d'Etudes de Limeil-Valenton in the indirect drive scheme using the two-beams Nd:glass laser facility Phebus at the energy level = 6 kJ (blue light) are presented. A final density of compressed DT close to 100 ρ0 has been obtained; it has been deduced from radiochemistry of the activated silicon atoms in the pusher. The best irradiance uniformity on the microballoon was evaluated to = 15% rms. Phebus has also been equipped with an optical fiber oscillator to study the effect of a smoothing technique on coupling processes: It appeared that at 0·53 μm absorption efficiency is increased by =15–20%. With the eight-beams Octal laser, hydrodynamic instabilities development in accelerated planar targets has been investigated both for direct and indirect drives; the mixing zone detected at the light-heavy interface does not present visible bubble-and-spike like structures and is less developed in the indirect configuration. Atomic physics in laser plasmas is also deeply studied; a particular effort has been made on absorption spectroscopy, a powerful diagnostic of ionization dynamics in cold and dense plasmas. Experiments have been realized either in multilayered targets or using rear-side X-ray emission of thin Au foils to heat the samples. To reach fuel ignition conditions, more powerful lasers, in the range of megajoule, will be needed. Their design needs further technological developments to reduce the capital cost in $/W. At Limeil, we work mainly on high-damage threshold optical coatings, using the sol-gel process, high-quality, low-cost mirror fabrication, using the replica technics, and incoherent laser pulse generation for beam smoothing.
X-ray emission by the rear side of laser-irradiated gold targets
- D. Babonneau, J. L. Bocher, C. Bayer, A. Decoster, D. Juraszek, J. P. Perrine, G. Thiell
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- Laser and Particle Beams / Volume 9 / Issue 2 / June 1991
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- 09 March 2009, pp. 527-540
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We present results of X-ray emission by the rear side of gold thin targets irradiated by the Phebus laser at λ = 0.35 μm, τ = 0.7 and 1.3 ns, and EL = 1.5 kJ. A streak camera coupled with a transmission grating gave the time-resolved X-ray emission of the rear side. Also, a streak camera coupled with a slit allowed us to obtain information about the space and time evolution of the plasma. Some other diagnostics gave information about the energy balance and the X-ray conversion efficiency. The results are in good agreement with previous ones obtained with the Octal laser, particularly on optimum thicknesses for X-ray conversion efficiencies. Values of the thermal flux limiter are deduced. Simulations with FCI 1 code with multigroup radiative transfer and non-LTE ionization reproduce the experimental results only about some points. A number of reasons, such as 2-D effects and problems of opacity, are invoked.
The Coherence of Catholic Social Thought: Toward a Theology of Involvement
- Richard C. Bayer
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Although recent attempts to state the coherence or integrating idea within Catholic Social Thought have contributed much to our understanding of the tradition, the attempts have been based on improper methodological presuppositions. For this reason the authors offering these theories have been unable to justify their selection and emphasis on certain documents; they have not fully considered the challenge to their theories by development in the integrating idea taken as most essential; and they have not been methodologically clear about the role which their own vision plays in the historical retrieval. Recognition of such problems in historical analysis, and the path toward dealing with them today in an historically conscious way, is found in the work of Ernst Troeltsch.