The document describes the research areas of Prof. Ronny Blust's Ecophysiology, Biochemistry and Toxicology Group. The group conducts research in (eco)toxicology, field studies, biomonitoring, hazard and risk assessment, mode of action studies, metal analysis, and chemical analysis of complex matrices like aquatic and terrestrial food webs, sediments, soil and water. The group also studies airborne pollutants, particulate matter, and water treatment and reuse technologies. Some example projects mentioned include EU framework programs studying tidal rivers, environmental pollutants, and engineered nanoparticles, as well as industry projects on trace metal sensitivity and shrimp tributyltin levels.
Term ‘Nano’ comes from the Greek word ‘nanos’ meaning dwarf and denotes a measurement on the scale of one billionth (10⁹) of a meter in size. Nanoparticles are defined as a particulate dispersions of solid particles with atleast one dimension at a size range of 10-1000 nm. The most important feature of Nanoparticles is their surface area to volume aspect ratio, allowing them to interact with other particles easier.
Biosynthesis and Characterization of Zinc Oxide Nanoparticles using Onion Bul...ijtsrd
The wide application of nanoparticles stimulates the need for synthesizing them but, the conventional methods are usually hazardous and energy consuming. This leads to focus on œgreen synthesis of nanoparticles which seems to be easy efficient and ecofriendly approach. In this study, the plant mediated synthesis of zinc oxide nanoparticles (ZnO NPs) was carried out using bulb extract of Allium cepa as a reducing agent. The optimized nano zinc thus obtained was quantified and characterized using UV-Visible spectroscopy, Fourier Transform Infrared Spectroscopy (FT-IR), X-Ray diffraction, Scanning Electron Microscope (SEM), EDAX and Zeta potential analyses. Further, the synthesized ZnO NPs were tested for antimicrobial activity. N. Tensingh Baliah | S. Lega Priyatharsini"Biosynthesis and Characterization of Zinc Oxide Nanoparticles using Onion Bulb Extract" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-2 , February 2018, URL: http://www.ijtsrd.com/papers/ijtsrd8305.pdf http://www.ijtsrd.com/biological-science/botany/8305/biosynthesis-and-characterization-of-zinc-oxide--nanoparticles-using-onion-bulb-extract/n-tensingh-baliah
Green synthesis of zinc oxide nano particles using flower extract cassia dens...IJERD Editor
Green synthesis of metal nanoparticles is an interesting issue of the nanoscience and
nanobiotechnology. There is a growing attention to biosynthesis the metal nanoparticles using organisms.
Among these organisms, plants seem to be the best and they are suitable for large scale biosynthesis of
nanoparticles. Nanoparticles produced by plants are more stable, and the rate of synthesis is faster than that in
the case of other organisms. The present investigation was carried out to green synthesis of zinc oxide
nanoparticles by using the medicinal plant cassia densistipulata taub. The flower was collected from the campus
of Anantapuramu, Andhra Pradesh and their petals were separated. The petals were taken and cleaned with
dimeneralized water and soaked for an hour on dry cloth to remove moisture from the petals.
Synthesis of Zinc Nanoparticles was done by mixing 5gms of Zinc Nitrate with 50ml of aqueous
extract of cassia densistipulata taub petals. The formation of nanoparticles was monitored by visualizing color
changes and it was confirmed by Electron microscope (SEM), UV-Vis spectrophotometer and Fourier
Transform Infra-Red (FT-IR) spectroscopy. The results of various techniques confirmed the presence Zinc oxide
nanoparticles.
Green Synthesis of ZnO Nanoparticles using Jasminum Fluminense Leaf Extract a...ijtsrd
The main objective of the present study is to deal with the green synthesis of Zinc Oxide [ZnO] nanoparticles utilizing aqueous leaf extract of Jasminum Fluminense.` Zinc acetate [Zn(O2CCH3)2(H2O)2] and sodium hydroxide [NaOH] were used as starting materials and Jasminum Fluminense [Nithyamalli] leaf extract is used as precursor in the synthesis of ZnO nanoparticles. The resultant nanopowder was characterized by using Ultraviolet [UV] “ Visible Spectroscopy, Fourier Transform Infrared Spectroscopy [FTIR] and Transmission Electron Microscopic [TEM] studies. Formation of ZnO nanoparticles has been confirmed by UV-visible spectroscopy and the TEM analysis spectacles that the synthesized ZnO nanoparticles are of face centered cubic (fcc) structure and the size is found to be around 20 nm. FTIR spectral analysis indicated the leaf extract acts as the reducing and capping agents on the surface of ZnO nanoparticles. This simplistic and green approach may provide a useful tool to hefty extent in the synthesis of ZnO nanoparticles. These synthesized nanostructures illustrate novel applications in many fields such as cosmetics, optoelectronics, sensors, transducers and biomedical science because it is environmentally friendly and does not involve any harmful substances. S. Amudha"Green Synthesis of ZnO Nanoparticles using Jasminum Fluminense Leaf Extract and its Spectral and Optical Characterization Studies" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd12908.pdf http://www.ijtsrd.com/physics/nanotechnology/12908/green-synthesis-of-zno-nanoparticles-using-jasminum-fluminense-leaf-extract-and-its-spectral-and-optical-characterization-studies/s-amudha
Term ‘Nano’ comes from the Greek word ‘nanos’ meaning dwarf and denotes a measurement on the scale of one billionth (10⁹) of a meter in size. Nanoparticles are defined as a particulate dispersions of solid particles with atleast one dimension at a size range of 10-1000 nm. The most important feature of Nanoparticles is their surface area to volume aspect ratio, allowing them to interact with other particles easier.
Biosynthesis and Characterization of Zinc Oxide Nanoparticles using Onion Bul...ijtsrd
The wide application of nanoparticles stimulates the need for synthesizing them but, the conventional methods are usually hazardous and energy consuming. This leads to focus on œgreen synthesis of nanoparticles which seems to be easy efficient and ecofriendly approach. In this study, the plant mediated synthesis of zinc oxide nanoparticles (ZnO NPs) was carried out using bulb extract of Allium cepa as a reducing agent. The optimized nano zinc thus obtained was quantified and characterized using UV-Visible spectroscopy, Fourier Transform Infrared Spectroscopy (FT-IR), X-Ray diffraction, Scanning Electron Microscope (SEM), EDAX and Zeta potential analyses. Further, the synthesized ZnO NPs were tested for antimicrobial activity. N. Tensingh Baliah | S. Lega Priyatharsini"Biosynthesis and Characterization of Zinc Oxide Nanoparticles using Onion Bulb Extract" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-2 , February 2018, URL: http://www.ijtsrd.com/papers/ijtsrd8305.pdf http://www.ijtsrd.com/biological-science/botany/8305/biosynthesis-and-characterization-of-zinc-oxide--nanoparticles-using-onion-bulb-extract/n-tensingh-baliah
Green synthesis of zinc oxide nano particles using flower extract cassia dens...IJERD Editor
Green synthesis of metal nanoparticles is an interesting issue of the nanoscience and
nanobiotechnology. There is a growing attention to biosynthesis the metal nanoparticles using organisms.
Among these organisms, plants seem to be the best and they are suitable for large scale biosynthesis of
nanoparticles. Nanoparticles produced by plants are more stable, and the rate of synthesis is faster than that in
the case of other organisms. The present investigation was carried out to green synthesis of zinc oxide
nanoparticles by using the medicinal plant cassia densistipulata taub. The flower was collected from the campus
of Anantapuramu, Andhra Pradesh and their petals were separated. The petals were taken and cleaned with
dimeneralized water and soaked for an hour on dry cloth to remove moisture from the petals.
Synthesis of Zinc Nanoparticles was done by mixing 5gms of Zinc Nitrate with 50ml of aqueous
extract of cassia densistipulata taub petals. The formation of nanoparticles was monitored by visualizing color
changes and it was confirmed by Electron microscope (SEM), UV-Vis spectrophotometer and Fourier
Transform Infra-Red (FT-IR) spectroscopy. The results of various techniques confirmed the presence Zinc oxide
nanoparticles.
Green Synthesis of ZnO Nanoparticles using Jasminum Fluminense Leaf Extract a...ijtsrd
The main objective of the present study is to deal with the green synthesis of Zinc Oxide [ZnO] nanoparticles utilizing aqueous leaf extract of Jasminum Fluminense.` Zinc acetate [Zn(O2CCH3)2(H2O)2] and sodium hydroxide [NaOH] were used as starting materials and Jasminum Fluminense [Nithyamalli] leaf extract is used as precursor in the synthesis of ZnO nanoparticles. The resultant nanopowder was characterized by using Ultraviolet [UV] “ Visible Spectroscopy, Fourier Transform Infrared Spectroscopy [FTIR] and Transmission Electron Microscopic [TEM] studies. Formation of ZnO nanoparticles has been confirmed by UV-visible spectroscopy and the TEM analysis spectacles that the synthesized ZnO nanoparticles are of face centered cubic (fcc) structure and the size is found to be around 20 nm. FTIR spectral analysis indicated the leaf extract acts as the reducing and capping agents on the surface of ZnO nanoparticles. This simplistic and green approach may provide a useful tool to hefty extent in the synthesis of ZnO nanoparticles. These synthesized nanostructures illustrate novel applications in many fields such as cosmetics, optoelectronics, sensors, transducers and biomedical science because it is environmentally friendly and does not involve any harmful substances. S. Amudha"Green Synthesis of ZnO Nanoparticles using Jasminum Fluminense Leaf Extract and its Spectral and Optical Characterization Studies" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd12908.pdf http://www.ijtsrd.com/physics/nanotechnology/12908/green-synthesis-of-zno-nanoparticles-using-jasminum-fluminense-leaf-extract-and-its-spectral-and-optical-characterization-studies/s-amudha
Plant Mediated Synthesis of ZnO and Mn Doped ZnO Nanoparticles Using Carica P...IIJSRJournal
In this work, Zinc Oxide (ZnO) and Mn-doped ZnO nanoparticles were green synthesized using Carica papaya extract by the Co-precipitation method. X-ray diffraction (XRD) results revealed the formation of ZnO and Mn-doped ZnO nanoparticles with the wurtzite crystal structure (hexagonal). Due to the presence of dopant Manganese (Mn) the optical spectra showed a redshift in the absorbance spectrum. Structural and optical properties of the end product showed that the manganese ions (Mn2+) substituted the Zinc ions (Zn2+) without altering the Wurtzite structure of ZnO. Fourier Transform Infrared Spectroscopy (FTIR) spectra confirm the presence of metal oxide present in the end product. The antibacterial efficiency of ZnO and Mn-doped ZnO nanoparticles were studied using the agar well diffusion method against Gram-positive and Gram–negative bacteria. It is obvious from the results that Mn doped ZnO nanoparticles exhibit better antibacterial activity than ZnO nanoparticles.
It an overall view on two research papers. Biological synthesis of Nano particles from plants and microorganisms
and the synthesis of metallic Nano particles using plant extract
The review article summarizes the applications of silver nanoparticles for diverse sectors. Over the decades, nanoparticles used as dignified metals such as silver exhibited distinctive characteristics basically correlated
to chemical, physical and biological property of counterparts having bulkiness. Numerous studies reported that Nanoparticles of about 100 nm diameter play a crucial role in widely spread industries due to unique properties including the dimension of small particle, high surface area and quantum confinement and they dispersed without agglomeration. Decade of discoveries clearly established that shape, size and distribution of Silver nanoparticles strongly affect the electromagnetic, optical and catalytic properties, which are often an assortment of changeable synthetic methods and reducing agents with stabilizers. Generation after generation the postulates come forth about properties of silver for the ancient Greeks cook from silver pots and the old adage ‘born with a silver spoon in his mouth’ thus show that eating with a silver spoon was wellknown
as uncontaminated. Impregnation of metals with silver nanoparticles is a practical way to exploit the microbe aggressive properties of silver at very low cost. The nanoparticles help in targeted delivery of drugs, enhancing bioavailability, sustaining drug or gene effect in target tissues, and enhancing the stability. Implementations of silver partials in medical science and biological science have been noticed from years ago; however alteration with nanotechnology is innovative potential. Over 23% of all nanotechnology based products, diagnostic and therapeutic applications implanted with silver nanoparticles (e.g. In arthritic disease and wound healing, etc.) and widely known for their antifungal, antibacterial, antiviral effect, employed in textile fabrics and added into cosmetic products as antiseptic to overcome skin problems. Thus, Silver
nanoparticles (AgNPs) have been urbanized as an advanced artifact in the field of nanotechnology.
Silver Nanoparticles Synthesis, Properties, Applications and Future Perspecti...iosrjce
Silver nanoparticles (Ag NPs) have gained significant interest due to their unique optical,
antimicrobial, electrical, physical properties and their possible application. The change of energy level from
continuous band to discrete band of Ag NPs with decrease in size of particles gives strong size dependent
chemical and physical properties. Ag NPs show lower toxicity to human health while Ag NPs show higher
toxicity to various micro-organisms. For this reason Ag NPs having scope for medical instruments,
antimicrobial application, products for health care such as scaffolds, burn dressing, water purification,
agriculture uses. Ag NPs can be synthesized by using various methods which is primarily classified into two
type’s namely physical process which includes laser ablation, condensation, evaporation etc. and chemical
process which includes hydrazine, sodium borohydride, green synthesis etc. Among all these methods green
synthesis is non-toxic, eco-friendly and cost effective. In this review paper different synthesis process especially
green synthesis, properties, applications of silver nanoparticles and their recent advances are described. We
also highlight the toxicity and compares Ag NPs with others nanoparticles.
Use of stable and radio isotopes to understand the plant physiological processRAHUL GOPALE
Introduction
what is isotope ?
Types of Isotopes
Isotopic Labelling
ADVANTAGES AND DISADVANTAGES OF ISOTOPIC STUDY
APPLICATIONS OF ISOTOPES IN AGRICULTURE
Principle isotopes used in plant-soil studies
Case studies
FUTURE THRUSTS OF ISOTOPIC STUDY
CONCLUSIONS
REFERENCES
Plant Mediated Synthesis of ZnO and Mn Doped ZnO Nanoparticles Using Carica P...IIJSRJournal
In this work, Zinc Oxide (ZnO) and Mn-doped ZnO nanoparticles were green synthesized using Carica papaya extract by the Co-precipitation method. X-ray diffraction (XRD) results revealed the formation of ZnO and Mn-doped ZnO nanoparticles with the wurtzite crystal structure (hexagonal). Due to the presence of dopant Manganese (Mn) the optical spectra showed a redshift in the absorbance spectrum. Structural and optical properties of the end product showed that the manganese ions (Mn2+) substituted the Zinc ions (Zn2+) without altering the Wurtzite structure of ZnO. Fourier Transform Infrared Spectroscopy (FTIR) spectra confirm the presence of metal oxide present in the end product. The antibacterial efficiency of ZnO and Mn-doped ZnO nanoparticles were studied using the agar well diffusion method against Gram-positive and Gram–negative bacteria. It is obvious from the results that Mn doped ZnO nanoparticles exhibit better antibacterial activity than ZnO nanoparticles.
It an overall view on two research papers. Biological synthesis of Nano particles from plants and microorganisms
and the synthesis of metallic Nano particles using plant extract
The review article summarizes the applications of silver nanoparticles for diverse sectors. Over the decades, nanoparticles used as dignified metals such as silver exhibited distinctive characteristics basically correlated
to chemical, physical and biological property of counterparts having bulkiness. Numerous studies reported that Nanoparticles of about 100 nm diameter play a crucial role in widely spread industries due to unique properties including the dimension of small particle, high surface area and quantum confinement and they dispersed without agglomeration. Decade of discoveries clearly established that shape, size and distribution of Silver nanoparticles strongly affect the electromagnetic, optical and catalytic properties, which are often an assortment of changeable synthetic methods and reducing agents with stabilizers. Generation after generation the postulates come forth about properties of silver for the ancient Greeks cook from silver pots and the old adage ‘born with a silver spoon in his mouth’ thus show that eating with a silver spoon was wellknown
as uncontaminated. Impregnation of metals with silver nanoparticles is a practical way to exploit the microbe aggressive properties of silver at very low cost. The nanoparticles help in targeted delivery of drugs, enhancing bioavailability, sustaining drug or gene effect in target tissues, and enhancing the stability. Implementations of silver partials in medical science and biological science have been noticed from years ago; however alteration with nanotechnology is innovative potential. Over 23% of all nanotechnology based products, diagnostic and therapeutic applications implanted with silver nanoparticles (e.g. In arthritic disease and wound healing, etc.) and widely known for their antifungal, antibacterial, antiviral effect, employed in textile fabrics and added into cosmetic products as antiseptic to overcome skin problems. Thus, Silver
nanoparticles (AgNPs) have been urbanized as an advanced artifact in the field of nanotechnology.
Silver Nanoparticles Synthesis, Properties, Applications and Future Perspecti...iosrjce
Silver nanoparticles (Ag NPs) have gained significant interest due to their unique optical,
antimicrobial, electrical, physical properties and their possible application. The change of energy level from
continuous band to discrete band of Ag NPs with decrease in size of particles gives strong size dependent
chemical and physical properties. Ag NPs show lower toxicity to human health while Ag NPs show higher
toxicity to various micro-organisms. For this reason Ag NPs having scope for medical instruments,
antimicrobial application, products for health care such as scaffolds, burn dressing, water purification,
agriculture uses. Ag NPs can be synthesized by using various methods which is primarily classified into two
type’s namely physical process which includes laser ablation, condensation, evaporation etc. and chemical
process which includes hydrazine, sodium borohydride, green synthesis etc. Among all these methods green
synthesis is non-toxic, eco-friendly and cost effective. In this review paper different synthesis process especially
green synthesis, properties, applications of silver nanoparticles and their recent advances are described. We
also highlight the toxicity and compares Ag NPs with others nanoparticles.
Use of stable and radio isotopes to understand the plant physiological processRAHUL GOPALE
Introduction
what is isotope ?
Types of Isotopes
Isotopic Labelling
ADVANTAGES AND DISADVANTAGES OF ISOTOPIC STUDY
APPLICATIONS OF ISOTOPES IN AGRICULTURE
Principle isotopes used in plant-soil studies
Case studies
FUTURE THRUSTS OF ISOTOPIC STUDY
CONCLUSIONS
REFERENCES
The problem of environmental pollution is more expressed and more present by the development of the industry and the growth of the human population. Pollution of natural and wastewater is most often due to the release of heavy metals into watercourses. The greatest challenge for researchers is choosing the right biomass from a large number of low-cost biomaterials, and availability and price are very important selection factors. Microbial biomass, forestry waste and agroindustrial complexes are most frequently examined, as well as various macromolecules of natural origin. In this paper, barley straw that arises as agricultural waste product in barley production in Bosnia and Herzegovina, was used as a biosorbent. In the experimental part, physical and chemical characterization of barley straw was performed, after which the efficiency of removing Cd(II) and Ni(II) from aqueous solutions, using barley straw, and the influence of process parameters (pH value of aqueous solution, biosorbent size, interaction of metal ions) on the biosorption capacity were tested. It can be concluded that barley straw has good adsoption characteristics for the use as a low-cost natural sorbent for the removal of heavy metals from water.
Ecotoxicology is the study of the effects of toxic chemicals on biological organisms, especially at the population, community, ecosystem, and biosphere levels.
Biosensors in Environmental MonitoringSindhBiotech
This lecture is presented by our volunteer Bushra Umer, she is from Karachi, Pakistan, and she is covering "Biosensors in Environmental Monitoring"
For video: https://youtu.be/DoO2Aw7bRrk
Introduction
The food and water contamination with heavy metals is increasing due to the environmental pollutions. Heavy metals are the elements with the density of more than 5 g/cm3 and have become a serious problem as a result of the urbanization and industrialization. These toxic metals pollute water, soil, plants, and eventually foodstuffs and our bodies. Several methods exist to remediate heavy metal pollution in waters such as membrane filtration, ion exchange mechanisms, or by precipitation. Yet, these techniques are not cost effective, in some cases, and do produce wastes that need to be properly disposed of. Microbial bioremediation could be an alternative. The use of microbes for remediation of heavy metals has been well studied. Some microorganisms, especially soil bacteria, have the ability to tolerate these contaminants. In addition, certain bacterial strains are capable of binding to heavy metals or transforming them into less toxic forms. Low operating costs, usable in foodstuffs, selective removal for specific toxic metals, minimal use of chemicals (resulting in low sludge production) and high efficiencies at very low levels of heavy metals are some of the advantages of biosorption methods. In this regard, the purpose of this study was to investigate the ability of active and passive absorption of heavy metals by a number of Lactic Acid Bacteria (LAB) strains in laboratory environment and food.
Materials and Methods
Seven LAB isolates including Lacticaseibacillus casei (RTCC 1296-3), Lacticaseibacillus rhamnosus (RTCC 1293-2), Lactiplantibacillus plantarum (RTCC 1290), Limosilactobacillus fermentum (RTCC 1303), Enterococcus faecium (RTCC 2347), Lactobacillus helveticus (RTCC 1304) and Lactobacillus acidophilus (RTCC 1299) were obtained from Razi type culture collection (RTCC), located at Razi vaccine and Serum Research Institute, Iran. All isolates were cultured in MRS (Scharlau, Spain) broth medium, at 37 °C for 24 hours, under anaerobic conditions. Pure cultures were preserved for long term by freezing at -70°C with 20% Glycerol. Heavy metals including Nitrate of Pb (II), Cd (II) and Ni (II) were purchased from Merck (Darmstadt, Germany). All standard solutions were prepared from the stock solutions containing 1000 mgl-1 in distilled water. Other chemicals used in study including Nitric acid (65%) and Hydrogen peroxide (37%), were also purchased from Merck, Germany. This study was conducted in two in- vitro and in-vivo phases; in the in- vitro phase, seven strains of bacteria with probiotic properties (L. casei, L. rhamnosus, L. plantarum, L. fermentum, Ent. facium, L. helveticus and L. acidofilous) were screened and then their ability to bind to cadmium (Cd), Lead (Pb) and nickel (Ni) in aqueous solution was investigated. Then, in the in-vivo stage, three probiotic strains that had the highest biosorption efficiency in the previously stage were selected and their effect with a ratio of 1:1:1 and contact time of 15 and 30 min
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
An investigation on heavy metal tolerance properties of bacteria isolated fro...AbdullaAlAsif1
The presence of high concentration of toxic heavy metals in industrial waste directly leads to contamination of receiving soil and water bodies and has deleterious impact on both human health and aquatic life. In the present study samples from textile mill effluent from different areas of Jessore city were analyzed for the identification and characterization of bacteria which shows tolerance to Copper, Mercury and Zinc. The bacterial isolates were characterized on the basis of their morphological and physiological studies including size and shape of the organisms, arrangement of the cells, presence or absence of spores, regular or irregular forms, gram reaction, cultural characteristics, IMViC test, H 2S production, nitrate reduction, deep glucose agar test etc. All the bacterial isolates belonged to 3 genera Bacillus, Enterobacter and Pseudomonas. All the gram positive isolates used in our study showed highest level of tolerance to Zn and moderate level of tolerance to Cu while gram negative isolates showed higher tolerance to Zn in comparison with Cu in nutrient broth. But all of the isolates showed almost no tolerance to Hg. So, our bacterial isolates have the probability to use in the treatment of industrial effluent containing heavy metals and thus pollution due to heavy metal can be controlled. The goal of this study was to identify heavy metal tolerant bacteria from the textile effluent. This kind of study is very significant for broader investigation to obtain data about metal tolerant bacteria considering their potential use for bioremediation and about the interactions between metals and bacteria.
Similar to Ronny Blust 'Marine Science meets Maritime Industry' (20)
The bioremediation and photophysiology experiments in pilot PBRs with aim of mechanistic models development
--Alla Silkina, EnAlgae project, Swansea University, UK--
This presentation will outline the innovative processes and techniques we are using to capture the data, information and knowledge surrounding Algae cultivation in NWE Europe with a view to developing sophisticated decision support tools. These tools will enable stakeholders to explore current activities and potential opportunities in their region and understand the economic, environmental and legislative issues surrounding the cultivation of algae for energy.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
3. (Eco)toxicology
o In vivo
o In vitro Nature & ecosystem management
Field studies & biomonitoring Estuarine ecology
Mesocosm facility Silicium biochemistry
Hazard & Risk Assesment Bio-geomorphology
Mode of action studies Wetland desiccation &
Metal (trace) analysis eutrophication
8 ha pilot plot & Mesoscosm facility
Chemical (organic) analysis
Complex matrices
o Aquatic & terrestrial food
webs
o Sediments, soil, water
Persistant organic pollutants
o PCB’s, pesticiden
o Emerging risks (flame
Airborne pollutants & retardants)
electrosensors
Passive & active air sampling Water treatment & reuse
Particulate matter Biological reactors
o PM1, PM2,5, PM10 Aerobic granular sludge
energy-dispersive X-ray Coagulation/flocculation
fluorescence spectrometry Membrane processes
low-vacuum scanning electron Chemical oxidation,
microscopy ozonisation
4. (Eco)toxiciteit
In vivo
• Vissen
• Algen
Chemische analyse • Ongewervelden
• Water In vitro
• Lucht/particulair materiaal • Bacterieel
• Oppervlakte analyse • (Humane) cellijnen
• Bodem/sediment • Early Life Stage
• Biota
Impact Studies
Risicobepaling
Ecosysteem management
(Afval)waterbehandeling & hergebruik
Monitoringprogramma’s
5. Een paar projecten
• EU 6de & 7de Kaderprogramma & Interreg IV
o TIDE: Tidal River Development
o Modelkey: Models for Assessing and Forecasting the Impact of Environmental
Key Pollutants on Marine and Freshwater Ecosystems and Biodiversity
o ENNSATOX: Engineered Nanoparticle Impact on Aquatic Environments:
Structure, Activity and Toxicology
• Industrie
o Review of sensitivity of coastal and estuarine organisms to trace metals.
International Copper Association
• Onderzoekssamenwerkingen
o Mechanisms, effects and concentrations of tributyltin in Common Shrimp
o FISHGUARD: impact assessment and remediation of anthropogenic
interentions on fish populations
