704 research outputs found
Data for paper: Non-destructive on-line and long-term monitoring of in situ nitrate and nitrite reactivity in a clay environment at increasing turbidity
No full textData for: 'Non-destructive on-line and long-term monitoring of in situ nitrate and nitrite reactivity in a clay environment at increasing turbidity'The datasets contain the data on the stability of the pH::lyser probe and the method to determine nitrate and nitrite according to the SW algorithm. File "stability pH measured with pH lyser.xlsx": This file contains the data on the pH and T evolution as measured with the pH::lyser after immersion of the electrode in artificial Opalinus Clay Pore water for ~4 days.File "UV spectra nitrate solutions with turbidity.xlsx": This file shows the application of the SW algorithm to determine nitrate concentrations at high turbidity. This file contains raw and normalized UV spectral data for 4 solutions with ~40 mM nitrate and turbidity ranging from 3 to ~400 FNU. The two graphs compare the raw UV spectra with the spectra after normalization.File "UV spectra nitrite solutions with turbidity.xlsx": This file shows the application of the SW algorithm to determine nitrite concentrations at high turbidity. This file contains raw and normalized UV spectral data for 3 solutions with 0.3 to ~10 mM nitrite and turbidity ranging from ~500 to ~2400 FNU. The two graphs compare the raw UV spectra with the spectra after normalization
Performance assessment of on-line spectrophotometer and pH probe (S::can Messtechnik) in a clay environment under in situ conditions.
No full textData for: 'Non-destructive on-line and long-term monitoring of in situ nitrate and nitrite reactivity in a clay environment at increasing turbidity'The datasets contain the data on the stability of the pH::lyser probe and the method to determine nitrate and nitrite according to the SW algorithm. File "stability pH measured with pH lyser.xlsx": This file contains the data on the pH and T evolution as measured with the pH::lyser after immersion of the electrode in artificial Opalinus Clay Pore water for ~4 days.File "UV spectra nitrate solutions with turbidity.xlsx": This file shows the application of the SW algorithm to determine nitrate concentrations at high turbidity. This file contains raw and normalized UV spectral data for 4 solutions with ~40 mM nitrate and turbidity ranging from 3 to ~400 FNU. The two graphs compare the raw UV spectra with the spectra after normalization.File "UV spectra nitrite solutions with turbidity.xlsx": This file shows the application of the SW algorithm to determine nitrite concentrations at high turbidity. This file contains raw and normalized UV spectral data for 3 solutions with 0.3 to ~10 mM nitrite and turbidity ranging from ~500 to ~2400 FNU. The two graphs compare the raw UV spectra with the spectra after normalization
SEC-MALS data irradiated cellulosic tissues
No full textSupplementary dataset of the SEC MALS analyses performed on (non)-irradiated cellulosic tissues. Measurements were performed by Leena Pitkänen and Timo Ylönen (Aalto University, Finland). Dataset accompanying the following paper:"Radiolytic degradation of cellulosic materials in nuclear waste: effect of oxygen and absorbed dose" by Bleyen Nele, Van Gompel Veerle, Smets Steven, Eyley Samuel, Verwimp Wim, Thielemans Wim, and Valcke ElieTHIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV
Healcon: self-healing concrete to create durable and sustainable concrete structures
No full textWithin the theme ‘Self-healing materials for prolonged lifetime’ (NMP.2012.2.1-3) of the Seventh Framework Programme, self-healing concrete is an important topic. The project HEALCON, which deals with self-healing concrete to create durable and sustainable concrete structures, is funded by EU-FP7 and started in January 2013. The coordinator of the project is Prof. Nele De Belie (UGent) and the consortium partners are UGent, Avecom, TU Delft, Acciona, TUM, TTI, VTT, COWI, DTI, CEINNMAT, Devan and Fescon.
Adequate perpetuation of the road, tunnel and bridge network, is crucial to preserving European cohesion and business operations; and around 70% of this infrastructure is made of concrete. In order to garantuee liquid tightness of concrete structures, and enhance durability of elements prone to bending cracks, smart concrete with selfhealing properties will be designed.
Thanks to the existing expertise of the consortium in the field of self-healing concrete at a lab-scale, a thoughtful selection of promising techniques is possible.
- For early age cracks, a non-elastic repair material can be proposed, such as calcium carbonate precipitated by bacteria, or new cement hydrates of which the formation is stimulated by the presence of hydrogels.
- For moving cracks under dynamic load, an elastic polymeric healing agent is suggested.
Different healing agents and encapsulation techniques are tested and scaled up. Self-healing efficiency is evaluated in lab-scale tests using purposefully adapted monitoring techniques, and optimized with the help of suitable computer models.
Finally the efficiency is validated in a large scale lab test and implemented in an actual concrete structure. Life-cycle cost analysis will show the impact of the selfhealing technologies on economy, society and environment compared to traditional construction methods
Histomonas meleagridis ('blackhead') moleculaire karakterisatie, diagnose en preventie
No full textHistomonas meleagridis (blackhead): moleculaire karakterisatie, diagno se en preventie Histomonosis (blackhead) wordt veroorzaakt door de flagellaire protozo ön Histomonas meleagridis en is één van de belangrijkste aandoening en bij kalkoenen. De infectie gebeurt via de caeca, maar verspreidt zich daarna via de poortader naar de lever en eventueel naar andere organen. De parasiet veroorzaakt karakteristieke necrotische letsels in en verdi kkingen van de caecale mucosa, een typische kaasachtige prop in het caec ale lumen en necrotische hepatitis. Bij kalkoenen kan deze ziekte tot 10 0% mortaliteit leiden, terwijl dit bij andere hoenderachtigen zoals kipp en slechts in beperkte mate tot dood zal leiden, maar wel kan bijdragen tot algemene morbiditeit. Door het grote aanbod aan farmacologische midd elen in de 20ste eeuw, werd H. meleagridis lange tijd onder controle geh ouden en was er weinig behoefte om onderzoek te verrichten naar de paras iet. Hierdoor zijn er momenteel enkele cruciale hiaten in de kennis van H. meleagridis, voornamelijk op moleculair vlak. Op het einde van de vor ige eeuw en in het begin van deze eeuw werd het gebruik van alle farmaco logische middelen tegen histomonosis bij voedsel-producerende dieren ech ter in de Europese markt verboden, waardoor deze ziekte opnieuw een opma rs kende in deze landen. Hierdoor is het doel van dit doctoraat een nieu w middel te vinden dat pluimvee, en voornamelijk kalkoenen, kan bescherm en of eventueel behandelen tegen histomonosis. Vooreerst werd de ef ficiëntie van paromomycine als therapeutisch en als profylactisch middel getest tegen H. meleagridis bij kalkoenen. Verder werden de eerste s tappen gezet tot de moleculaire karakterisatie van de parasitiet, wat to t identificatie van kandidaatantigenen zou kunnen leiden voor vaccinontw ikkeling. Een vaccin dient echter een protectieve immuunrespons te induc eren, wat voor H. meleagridis nog niet opgehelderd is. Daarom werd in dit doctoraat de protectieve waarde van een systemische antistoffenresp ons tegen de parasiet bij kalkoenen onderzocht. Daarnaast is het tot op heden moeilijk vast te stellen hoe ver H. meleagridis verspreid is, a angezien de gevoeligheid bij hoenderachtigen voor deze parasiet sterk ve rschilt en verschillende hoenderachtigen als dragerdieren kunnen optrede n. Bovendien kunnen de symptomen van en de letsels in de organen van zie ke dieren fout geïnterpreteerd worden. Hierdoor is een laatste doel van dit doctoraatsonderzoek een gevoelige en specifieke diagnostische test t e ontwikkelen voor de detectie van H. meleagridis.status: Publishe
Een monument voor het land : overheidsstatistiek in België, 1795-1870
No full textIn A monument to the country. Official statistics in Belgium, 1795-1870, Nele Bracke unravels why and how the Belgian state and its predecessors organized and developed an official statistical apparatus in order to collect numerical information. The study captures the underlying objectives and structures, as well as the methods to compile statistics. Nele Bracke investigates the meaning and significance of government statistics in the 19th-century State and society. In Belgium, early social scientists established an internationally renowned ‘statistical system’ designed to collect information about the country, the people and the society. This ‘statistical system’ was built around the ‘Commission centrale de Statistique’ (statistical committee) and the production of demographic, economic and agricultural censuses. In the first part of the book, the author analyzes the institutional history of the ‘Commission centrale de Statistique’ and its predecessors. In the second part of the book, she studies the censuses
Een monument voor het land. Overheidsstatistiek in België, 1795-1870
No full textIn A monument to the country. Official statistics in Belgium, 1795-1870, Nele Bracke unravels why and how the Belgian state and its predecessors organized and developed an official statistical apparatus in order to collect numerical information. The study captures the underlying objectives and structures, as well as the methods to compile statistics. Nele Bracke investigates the meaning and significance of government statistics in the 19th-century State and society. In Belgium, early social scientists established an internationally renowned ‘statistical system’ designed to collect information about the country, the people and the society. This ‘statistical system’ was built around the ‘Commission centrale de Statistique’ (statistical committee) and the production of demographic, economic and agricultural censuses. In the first part of the book, the author analyzes the institutional history of the ‘Commission centrale de Statistique’ and its predecessors. In the second part of the book, she studies the censuses
Een monument voor het land. Overheidsstatistiek in België, 1795-1870
No full textIn A monument to the country. Official statistics in Belgium, 1795-1870, Nele Bracke unravels why and how the Belgian state and its predecessors organized and developed an official statistical apparatus in order to collect numerical information. The study captures the underlying objectives and structures, as well as the methods to compile statistics. Nele Bracke investigates the meaning and significance of government statistics in the 19th-century State and society. In Belgium, early social scientists established an internationally renowned ‘statistical system’ designed to collect information about the country, the people and the society. This ‘statistical system’ was built around the ‘Commission centrale de Statistique’ (statistical committee) and the production of demographic, economic and agricultural censuses. In the first part of the book, the author analyzes the institutional history of the ‘Commission centrale de Statistique’ and its predecessors. In the second part of the book, she studies the censuses
Evidence for a role of nitric oxide in iron homeostasis in plants
No full textNitric oxide (NO), once regarded as a poisonous air pollutant, is now understood as a regulatory molecule essential for several biological functions in plants. In this review, we summarize NO generation in different plant organs and cellular compartments, and also discuss the role of NO in iron (Fe) homeostasis, particularly in Fe-deficient plants. Fe is one of the most limiting essential nutrient elements for plants. Plants often exhibit Fe deficiency symptoms despite sufficient tissue Fe concentrations. NO appears to not only up-regulate Fe uptake mechanisms but also makes Fe more bioavailable for metabolic functions. NO forms complexes with Fe, which can then be delivered into target cells/tissues. NO generated in plants can alleviate oxidative stress by regulating antioxidant defense processes, probably by improving functional Fe status and by inducing post-translational modifications in the enzymes/proteins involved in antioxidant defense responses. It is hypothesized that NO acts in cooperation with transcription factors such as bHLHs, FIT, and IRO to regulate the expression of enzymes and proteins essential for Fe homeostasis. However, further investigations are needed to disentangle the interaction of NO with intracellular target molecules that leads to enhanced internal Fe availability in plants.RKT is grateful to Department of Science and Technology-Science and Engineering Research Board (DST-SERB) New Delhi, for a Teachers Associateship for Research Excellence (TAR/2019/000064).Tewari, RK (corresponding author), Univ Lucknow, Dept Bot, Lucknow 226007, Uttar Pradesh, India.
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Expect the Unexpected: Organizational Purpose as Enabler of Serendipitous Impact
No full textChristian Busch, author of The Serendipity Mindset: The Art and Science of Creating Good Luck, and Nele Terveen explain how purpose helps leaders connect the dots between grand challenges and strategic responses. When leaders expect the unexpected, the authors explain, they incent their stakeholders to embrace uncertainty so they can better guide their organizations through adversity and disruption. By leveraging the five practices of Serendipitous Impact (impact mission, impact leadership, impact governance, impact networks, and impact measurement) unexpected events can help leaders come up with solutions that often cannot be seen, let alone fully defined, in advance.https://www.cutter.com/journal/scaffolding-purpose-times-polycrisi
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