Synthesis of Cross Linked From Xanthan Gum Under (2).pptx
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The document discusses the synthesis of cross-linked hydrogels from xanthan gum under the influence of microwave radiation. It aims to produce cross-linked hydrogels from the natural gum xanthan gum and study the effects of microwave radiation and various factors like reaction time, pH and solvent on hydrogel production. The hydrogels will be characterized using techniques like FTIR, SEM, XRD. The document outlines the materials and methods to be used, including purification of xanthan gum, crosslinking with acrylamide and citric acid, and characterization of the synthesized hydrogels.
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Microbial Production Of Alkaline Proteases And Evaluation Of Its Performances...
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To obtain a higher diversity of compounds, higher bioactivity, and improve the release of nutrients
from bee pollen, additional processing of the raw material may be applied: fermentation using
microorganisms or hydrolysis using selective enzymes. This research aimed to determine the impact
of enzymatic hydrolysis on the antioxidant and antibacterial activities of bee pollen. Bee pollen
samples from Sweden, Spain, Netherlands, Italy, Poland, Denmark, Slovakia, Malta, and Lithuania
were hydrolyzed using pure enzymes, including lipase, cellulase, protease, and amyloglucosidase,
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flavonoid content, and antioxidant activity were analyzed spectrophotometrically. Antibacterial
activity against Staphylococcus aureus, Listeria monocytogenes, Staphylococcus enteritidis, and Salmonella
typhimurium was evaluated using the agar well diffusion assay. Obtained results revealed a positive
effect of enzymatic hydrolysis on biologically active compound content and activity: total phenolic
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grouped samples into 5–9 clusters and was dependent on the measured characteristic used as
an input—total phenolic compounds content, total flavonoid content, antioxidant activity, and
antibacterial activity against four different bacteria. Chemometrics showed, that the enzyme used for
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standard methods. The acute toxicity study indicates that the LD50 was higher than 2000 mg/Kg body weight. Subchronic
toxicity studies was carried out using five groups of rats. Group 1 served as control, 2–5 received 100 mg/
Kg, 200 mg/Kg, 500 mg/Kg and 1000 mg/Kg body weight orally for 28 days.
Results: Post-administration biochemical analysis indicates there was increased weight in rats administered 100
mg/kg and 200 mg/kg while it reduced in the 500 mg/kg group. Significant elevations of liver function markers
were reported for 200 mg/kg and 500 mg/kg respectively. Serum and hepatic protein profiles remained unaltered.
Renal function analysis revealed elevated serum urea and creatinine for 200 and 500 mg/kg groups, elevated serum
Na+ and Ca+ and reduced serum Cl− for the 500 mg/Kg group. Elevated Kidney K+ and Ca+ levels, reduced Cl−
were significantly observed in 500 mg/Kg group. Significant rise in hepatic and renal lipid peroxidation was
observed in 200 and 500 mg/Kg groups. There were observed disarmament of the antioxidant defense systems
occasioned by rise and drop in tissue (hepatic, renal, testes, heart) Superoxide dismutase (SOD), Catalase (Cat),
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interest and possessed toxic properties in rats when administered at a dose above 200 mg/Kg over a prolonged
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Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
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Pharmaceutical industries are still in the hunt of effective scavengers for free radicals from the unexplored
medicinal plants. About 80,000 species of plants are utilized for treating various diseases in different systems of Indian
medicine. Many pharmaceutical companies giving importance in plant-derived drugs mainly due to the current widespread
belief that 'Green Medicine' is safe and more dependable than the costly synthetic drugs, which have adverse side effects.
The objective of the study is isolation of Phytochemical active constituents, Antidiabetic, antimicrobial and
antioxidant activities of the rare Antidiabetic medicinal plant Epaltes divaricata (Linn.) since the selected plant has varied
medicinal properties used in Ayurveda. This valuable plant is used in traditional Ayurvedic medicine to alleviate jaundice,
diabetes mellitus, urethral discharges and acute dyspepsia. It is also regarded as a diaphoretic, diuretic and a stimulating
expectorant.
The methanol extract of Epaltes divaricata L. showed excellent antimicrobial activity against bacteria and fungi.
Phytochemical analysis was carried out for the same extract by two different standard methods and which confirmed the
presence of steroids, triterpenoids and phenolic compounds. Decreasing of postprandial hyperglycemia is a therapeutic
approach for treating diabetes mellitus. This can be achieved in current trends through the inhibition of carbohydrate
hydrolyzing enzymes such as alpha glucosidase and alpha amylase. Agents with α-amylase and α-glucosidase inhibitory
activity are very useful as oral anti hypoglycemic agents for the control of hyperglycemia in patients who have diabetes
mellitus. In this study the methanol extract exhibited above 50% of inhibition in all standard concentration.
Microbial Production Of Alkaline Proteases And Evaluation Of Its Performances...
Microbial Production Of Alkaline Proteases And Evaluation Of Its Performances...Shafkat Shamim Rahman
A high alkaline protease producing bacterial strain was isolated and identified a local soil sample. The organism was gram positive and forms spore during adverse condition in the growth medium. After various tests it was suggested and the features agreed with the description of Bacillus subtilis. It was also identified as B. subtilis with 99.9% identity by API 50 CHB. The enzyme hydrolyses a number of proteins including azocasein which suggests that it is an extracellular alkaline protease. The experimentally determined isoelectric point was 5.1 and the optimal enzyme activity was at 60°C and at pH 8.5. The esterase preferentially hydrolyzed short-chain fatty acids. Native enzyme preparations typically showed a Michaelis constant (Km) and Vmax of 0.40mM and 12,200 U mg)-1, respectively. This microbial enzyme was partially purified by ammonium sulfate fractionation, dialysis, DEAE cellulose chromatography and electrophoretic analysis. Enzyme purity was tested by SDS-PAGE. Quantitative estimation has shown that 40mL of culture supernatant could dehair 2×1 cm of leather completely in 9 hours. In future the tanneries will use a combination of chemical and enzymatic processes. In practical applications, protease is a useful enzyme for promoting the hydrolysis of proteins and showing significant industrial applications.Research Article
This study evaluated the antimicrobial properties of three local Guyanese fruits - Morinda citrifolia (Noni), Persea americana (Avocado), and Musa sapientum (Banana). Fruit extracts were tested against bacterial and fungal strains using disc diffusion methods. The extracts showed antimicrobial activity against certain pathogens. Staphylococcus was most susceptible while Candida albicans was most resistant. Avocado extracts were effective against both bacteria and fungi. Phytochemical analysis revealed the presence of compounds like tannins and flavonoids in the fruit extracts that could contribute to antimicrobial effects. Statistical analysis showed ethanol extracts had significant antimicrobial activity while hexane and water extracts did not.
Kaempferia rotunda
The document summarizes a study that evaluated the antihyperglycemic and antinociceptive activities of the methanolic extract of Kaempferia rotunda rhizomes. In glucose tolerance tests in mice, the extract significantly lowered serum glucose levels in a dose-dependent manner, with the highest dose of 400 mg/kg reducing glucose by 39.6%. In antinociceptive tests using acetic acid-induced writhing in mice, the extract significantly reduced the number of writhes in a dose-dependent manner, with the highest dose of 400 mg/kg reducing writhes by 69.4%. The extract demonstrated significant antihyperglycemic and antinociceptive effects,
FORMULATION AND DEVELOPMENT OF GLICLAZIDE MICROSPHERES FOR PHARMACEUTICAL EVA...
FORMULATION AND DEVELOPMENT OF GLICLAZIDE MICROSPHERES FOR PHARMACEUTICAL EVA...ANURAG GROUP OF INSTITUTIONS
ABSTRACT Gliclazide microspheres were prepared by ionotropic gelation method using bioadhesive polymers such as sodium alginate, carbopol 934, carbopol 971, HPMC K4M in different ratios. Totally twelve different formulations of gliclazide were prepared by using the above polymers. The microspheres were characterized for drug content, entrapment efficiency, swelling index, mucoadhesive property by In vitro wash-off test and in-vitro drug release. The results of this investigation indicate that ionic cross linking technique Ionotropic gelation method can be successfully employed to fabricate Model drug microspheres. Micrometric studies revealed that the mean particle size of the prepared microspheres was in the size range of 512-903 μm and are suitable for bioadhesive microspheres for oral administration. The in-vitro mucoadhesive study demonstrated that microspheres of Model drug using sodium alginate along with Carbopol 934 as copolymer adhered to the mucus to a greater extent than the microspheres of Model drug using sodium alginate along with Carbopol 971 and HPMC K4Mas copolymers. Analysis of drug release mechanism showed that the drug release from the formulations followed non-Fickian diffusion and the best fit model was found to be Korsmeyer-Peppas. Based on the results of evaluation tests formulation coded T4 was concluded as best formulation. Keywords: Bioadhesive Microspheres, Gliclazide, Ionotropic gelation method.Preparation and Evaluation of Dermal Patch Containing Calendula Officinalis f...
The document describes the development and evaluation of dermal patches containing Calendula Officinalis for antimicrobial activity. Five formulations of dermal patches with varying drug content were prepared using HPMC and SCMC as polymers and polyethylene glycol as a plasticizer. The patches were evaluated for thickness, weight uniformity, folding endurance and moisture content. Scanning electron microscopy showed the patches had an irregular, rough surface which could aid in drug release. The patches were also tested for antimicrobial activity against Staphylococcus aureus using the disc diffusion method.
Comparison of Antibacterial Activities of Cavity Disinfectants
Comparison of Antibacterial Activities of Cavity DisinfectantsANALYTICAL AND QUANTITATIVE CYTOPATHOLOGY AND HISTOPATHOLOGY
Objective: To evaluate the antibacterial effects of 4 different cavity disinfectants on Streptococcus mutans, Lactobacillus acidophilus, and Enterococcus faecalis bacteria in different time periods.
Study Design: The antibacterial effects of Cavity Cleanser, Tubulicid Red Label, Chloraxid 2%, and Oxygenated Water cavity disinfectant solutions on E. faecalis (ATCC 29212), S. mutans (ATCC 25175), and L. acidophilus (RSKK 03037) bacterial strains were evaluated by disk diffusion method. In the study where vancomycin antibiogram disc constituted the positive control group, physiological saline solution was used as the negative control group. Standard, sterile, blank antibiogram discs of 5 mm in diameter, in which 15 μL of each material were added, were placed on agar plates at 2.5–3 cm intervals. The inhibition zone diameters formed around the discs that were left to incubate for 24–48 hours at 37°C were measured in millimeters. Statistical analysis of the data was performed using one-way analysis of variance, Kolmogorov-Smirnov, Levene, and Bonferroni tests.
Results: At the end of the study the solutions tested showed a statistically significant antibacterial effect on all bacterial strains used (p<0.05). Cavity Cleanser disinfectant containing 2% chlorhexidine showed the highest antibacterial effect on S. mutans and L. acidophilus, and benzalkonium-containing Tubulicid Red disinfectant on E. faecalis.
Conclusion: The antibacterial effect of all cavity disinfectants used in the study was found to be higher at the end of the 48th hour than at the end of the 24th hour, but there was no statistically significant difference (p>0.05).
Keywords: antibacterial agents; antibacterial effect; cavity disinfectants; chlorhexidine; contamination; dental caries; disinfection; disc diffusion; gram-negative bacteria; gram-positive bacteriaFinal review ppt.pptx
This document describes a study that evaluated the pharmacological effects of Terminalia chebula fruit extracts against neurodegenerative disorders in rodents. The study involved extracting Terminalia chebula fruits with polar and non-polar solvents, conducting preliminary phytochemical analysis, and screening the extracts for anti-parkinsonism and memory-enhancing effects. For anti-parkinsonism activity, the extracts were tested in a haloperidol-induced catatonia model in rats, while for memory effects the extracts were evaluated in ethanol-induced cognitive impairment and diazepam-induced amnesia models. The results of the study were discussed and compared to control groups.
Spray drying for formulation of pharmaceutical, herbal and food products
Spray drying is the mechanism of processing fluid into dry matter by spraying the fluid into a hot dry medium particularly as hot gas. The line of action comes into play as an atomizer breaks down the fluid into droplets of the right size and disperses them into the drying medium. The dispersed droplets mix with the hot dry gas.
1.Spray Drying Technology in Pharmaceutical Industry
2.Spray Drying in Herbal and Food Products
3.Quality Changes During Spray Drying
4.Drying Aids
5.Spray Drying of Selected Food & Herbal Products
To Read More: https://bit.ly/3gqaRlj
The Influence of Enzymatic Hydrolysis on Bee Pollen Antioxidant and Antibacte...
Bee pollen is one of the most valuable apitherapeutic products with high nutritional value.
To obtain a higher diversity of compounds, higher bioactivity, and improve the release of nutrients
from bee pollen, additional processing of the raw material may be applied: fermentation using
microorganisms or hydrolysis using selective enzymes. This research aimed to determine the impact
of enzymatic hydrolysis on the antioxidant and antibacterial activities of bee pollen. Bee pollen
samples from Sweden, Spain, Netherlands, Italy, Poland, Denmark, Slovakia, Malta, and Lithuania
were hydrolyzed using pure enzymes, including lipase, cellulase, protease, and amyloglucosidase,
as well as enzyme mixtures such as Viscozyme® L and Clara-diastase. Total phenolic content, total
flavonoid content, and antioxidant activity were analyzed spectrophotometrically. Antibacterial
activity against Staphylococcus aureus, Listeria monocytogenes, Staphylococcus enteritidis, and Salmonella
typhimurium was evaluated using the agar well diffusion assay. Obtained results revealed a positive
effect of enzymatic hydrolysis on biologically active compound content and activity: total phenolic
content increased by 1.1 to 2.5 times, total flavonoid content by 1.1 to 3.0 times, radical scavenging
activity by 1.1–3.5 times, and antibacterial activity by 1.1 to 3.3 times. K-means clustering analysis
grouped samples into 5–9 clusters and was dependent on the measured characteristic used as
an input—total phenolic compounds content, total flavonoid content, antioxidant activity, and
antibacterial activity against four different bacteria. Chemometrics showed, that the enzyme used for
the hydrolysis had a higher impact on clustering results than the geographical origin of the samples.
preliminary toxicology profile of dennettia tripetala (pepper fruit) methanol...
preliminary toxicology profile of dennettia tripetala (pepper fruit) methanol...Ichipi-ifukor Patrick Chukuyenum
Background: Dennentia tripetalla (Pepper Fruit) belongs to the Annonaceae family and is abundant in Nigeria. Its
fruit in folklore medicine is used for treatment of varying ailments. While ample research evidence exists on the
plants fruit and seed, no current study exists on the toxicological profile of the plant leaves.
Methods: qualitative and quantitative phytochemicals and In vitro antioxidant assays were carried out using
standard methods. The acute toxicity study indicates that the LD50 was higher than 2000 mg/Kg body weight. Subchronic
toxicity studies was carried out using five groups of rats. Group 1 served as control, 2–5 received 100 mg/
Kg, 200 mg/Kg, 500 mg/Kg and 1000 mg/Kg body weight orally for 28 days.
Results: Post-administration biochemical analysis indicates there was increased weight in rats administered 100
mg/kg and 200 mg/kg while it reduced in the 500 mg/kg group. Significant elevations of liver function markers
were reported for 200 mg/kg and 500 mg/kg respectively. Serum and hepatic protein profiles remained unaltered.
Renal function analysis revealed elevated serum urea and creatinine for 200 and 500 mg/kg groups, elevated serum
Na+ and Ca+ and reduced serum Cl− for the 500 mg/Kg group. Elevated Kidney K+ and Ca+ levels, reduced Cl−
were significantly observed in 500 mg/Kg group. Significant rise in hepatic and renal lipid peroxidation was
observed in 200 and 500 mg/Kg groups. There were observed disarmament of the antioxidant defense systems
occasioned by rise and drop in tissue (hepatic, renal, testes, heart) Superoxide dismutase (SOD), Catalase (Cat),
Glutathione-s-transferase (GST), Glutathione peroxidase (GPx) activities in the test groups relative to control.
Histopathological examination indicated architectural aberrations at 500 and 1000 mg/kg.
Conclusions: It concluded that the plant had significant phytochemical and antioxidant properties of medical
interest and possessed toxic properties in rats when administered at a dose above 200 mg/Kg over a prolonged
period of time.Using next generation sequencing to describe epiphytic microbiota associated ...
Using next generation sequencing to describe epiphytic microbiota associated ...Agriculture Journal IJOEAR
Abstract— Its seems likely that agricultural management as diverse as certified organic and conventional IPM practices would impact the microbiota associated with crop surfaces differently. We sampled organic and conventionally managed apples at multiple time-points in a growing season and characterized the bacterial taxa associated with replicates of each treatment type. Surprisingly, no evidence of significant differences persisting across multiple time-points was observed. Significant differential abundance of certain taxa was documented but when it was, it was primarily associated with a single time-point making it difficult to understand if these observations resulted from an environmental or a treatment effect. Principal component analyses demonstrated that sampling time-point explained more of the differences between bacterial communities than treatment. Description of dominant shared bacterial families for both organic and conventional samples included Oxalobacteraceae, Pseudomonadaceae, Sphingomonadaceae and Enterobacteriaceae. hurdle technology
This document discusses hurdle technology, which uses a combination of preservation methods to inhibit microbial growth in foods. It describes over 60 potential hurdles including physical methods like heat/cold treatment, chemical hurdles like pH levels and preservatives, and microbially derived hurdles. The hurdles work to disturb the homeostasis of microorganisms and cause metabolic exhaustion. Case studies demonstrate using hurdle technology with blanched cauliflower preserved for 180 days and mangoes preserved with aloe vera gel and calcium chloride.
Forever Bright Toothgel Article - Forever Living Products
This is a research article on the effectiveness of Forever Bright Aloe Vera Tooth Gel vs. Two other leading toothpastes (Pepsodent and Colgate) at inhibing the bacterias that cause dental caries (ie tooth decay). Forever Bright Aloe Vera Tooth Gel was shown to be at least as effective, if not more so than the two leading brands that it was tested against. Forever Bright Tooth Gel is available from http://mastura.flp.com/
Similar to Synthesis of Cross Linked From Xanthan Gum Under (2).pptx (20)
Potential use of nylon scouring pad cubes attachment method for pectinase pro...
Potential use of nylon scouring pad cubes attachment method for pectinase pro...
IRJET- Solid State Fermentation for Prodigiosin Production using Serratia Mar...
IRJET- Solid State Fermentation for Prodigiosin Production using Serratia Mar...
The effect of conjugation on different polymers in bioadhesive films of losartan
The effect of conjugation on different polymers in bioadhesive films of losartan
Preliminary Studies on Antidiabetic, Antimicrobial and Antioxidant Activities...
Preliminary Studies on Antidiabetic, Antimicrobial and Antioxidant Activities...
Microbial Production Of Alkaline Proteases And Evaluation Of Its Performances...
Microbial Production Of Alkaline Proteases And Evaluation Of Its Performances...
FORMULATION AND DEVELOPMENT OF GLICLAZIDE MICROSPHERES FOR PHARMACEUTICAL EVA...
FORMULATION AND DEVELOPMENT OF GLICLAZIDE MICROSPHERES FOR PHARMACEUTICAL EVA...
Preparation and Evaluation of Dermal Patch Containing Calendula Officinalis f...
Preparation and Evaluation of Dermal Patch Containing Calendula Officinalis f...
Comparison of Antibacterial Activities of Cavity Disinfectants
Comparison of Antibacterial Activities of Cavity Disinfectants
Spray drying for formulation of pharmaceutical, herbal and food products
Spray drying for formulation of pharmaceutical, herbal and food products
The Influence of Enzymatic Hydrolysis on Bee Pollen Antioxidant and Antibacte...
The Influence of Enzymatic Hydrolysis on Bee Pollen Antioxidant and Antibacte...
preliminary toxicology profile of dennettia tripetala (pepper fruit) methanol...
preliminary toxicology profile of dennettia tripetala (pepper fruit) methanol...
Using next generation sequencing to describe epiphytic microbiota associated ...
Using next generation sequencing to describe epiphytic microbiota associated ...
Forever Bright Toothgel Article - Forever Living Products
Forever Bright Toothgel Article - Forever Living Products
Recently uploaded
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
Immersive Learning That Works: Research Grounding and Paths Forward
We will metaverse into the essence of immersive learning, into its three dimensions and conceptual models. This approach encompasses elements from teaching methodologies to social involvement, through organizational concerns and technologies. Challenging the perception of learning as knowledge transfer, we introduce a 'Uses, Practices & Strategies' model operationalized by the 'Immersive Learning Brain' and ‘Immersion Cube’ frameworks. This approach offers a comprehensive guide through the intricacies of immersive educational experiences and spotlighting research frontiers, along the immersion dimensions of system, narrative, and agency. Our discourse extends to stakeholders beyond the academic sphere, addressing the interests of technologists, instructional designers, and policymakers. We span various contexts, from formal education to organizational transformation to the new horizon of an AI-pervasive society. This keynote aims to unite the iLRN community in a collaborative journey towards a future where immersive learning research and practice coalesce, paving the way for innovative educational research and practice landscapes.
The debris of the ‘last major merger’ is dynamically young
The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
Travis Hills of MN is Making Clean Water Accessible to All Through High Flux ...
By harnessing the power of High Flux Vacuum Membrane Distillation, Travis Hills from MN envisions a future where clean and safe drinking water is accessible to all, regardless of geographical location or economic status.
快速办理(UAM毕业证书)马德里自治大学毕业证学位证一模一样
学校原件一模一样【微信：741003700 】《(UAM毕业证书)马德里自治大学毕业证学位证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
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Applied Science: Thermodynamics, Laws & Methodology.pdf
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.
Micronuclei test.M.sc.zoology.fisheries.
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
Farming systems analysis: what have we learnt?.pptx
Presentation given at the official farewell of Prof Ken Gillet at Wageningen on 13 June 2024
Describing and Interpreting an Immersive Learning Case with the Immersion Cub...
Current descriptions of immersive learning cases are often difficult or impossible to compare. This is due to a myriad of different options on what details to include, which aspects are relevant, and on the descriptive approaches employed. Also, these aspects often combine very specific details with more general guidelines or indicate intents and rationales without clarifying their implementation. In this paper we provide a method to describe immersive learning cases that is structured to enable comparisons, yet flexible enough to allow researchers and practitioners to decide which aspects to include. This method leverages a taxonomy that classifies educational aspects at three levels (uses, practices, and strategies) and then utilizes two frameworks, the Immersive Learning Brain and the Immersion Cube, to enable a structured description and interpretation of immersive learning cases. The method is then demonstrated on a published immersive learning case on training for wind turbine maintenance using virtual reality. Applying the method results in a structured artifact, the Immersive Learning Case Sheet, that tags the case with its proximal uses, practices, and strategies, and refines the free text case description to ensure that matching details are included. This contribution is thus a case description method in support of future comparative research of immersive learning cases. We then discuss how the resulting description and interpretation can be leveraged to change immersion learning cases, by enriching them (considering low-effort changes or additions) or innovating (exploring more challenging avenues of transformation). The method holds significant promise to support better-grounded research in immersive learning.
Compexometric titration/Chelatorphy titration/chelating titration
Classification
Metal ion ion indicators
Masking and demasking reagents
Estimation of Magnisium sulphate
Calcium gluconate
Complexometric Titration/ chelatometry titration/chelating titration, introduction, Types-
1.Direct Titration
2.Back Titration
3.Replacement Titration
4.Indirect Titration
Masking agent, Demasking agents
formation of complex
comparition between masking and demasking agents,
Indicators/Metal ion indicators/ Metallochromic indicators/pM indicators,
Visual Technique,PM indicators (metallochromic), Indicators of pH, Redox Indicators
Instrumental Techniques-Photometry
Potentiometry
Miscellaneous methods.
Complex titration with EDTA.
waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
The technology uses reclaimed CO₂ as the dyeing medium in a closed loop process. When pressurized, CO₂ becomes supercritical (SC-CO₂). In this state CO₂ has a very high solvent power, allowing the dye to dissolve easily.
The binding of cosmological structures by massless topological defects
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
field capable of driving flat rotation (i.e. Keplerian circular orbits at a constant speed for all radii) of test masses on a thin
spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
ESR spectroscopy in liquid food and beverages.pptx
With increasing population, people need to rely on packaged food stuffs. Packaging of food materials requires the preservation of food. There are various methods for the treatment of food to preserve them and irradiation treatment of food is one of them. It is the most common and the most harmless method for the food preservation as it does not alter the necessary micronutrients of food materials. Although irradiated food doesn’t cause any harm to the human health but still the quality assessment of food is required to provide consumers with necessary information about the food. ESR spectroscopy is the most sophisticated way to investigate the quality of the food and the free radicals induced during the processing of the food. ESR spin trapping technique is useful for the detection of highly unstable radicals in the food. The antioxidant capability of liquid food and beverages in mainly performed by spin trapping technique.
Direct Seeded Rice - Climate Smart Agriculture
Direct Seeded Rice - Climate Smart AgricultureInternational Food Policy Research Institute- South Asia Office
PPT on Direct Seeded Rice presented at the three-day 'Training and Validation Workshop on Modules of Climate Smart Agriculture (CSA) Technologies in South Asia' workshop on April 22, 2024.
在线办理(salfor毕业证书)索尔福德大学毕业证毕业完成信一模一样
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Synthesis of Cross Linked From Xanthan Gum Under (2).pptx
- 2. SUBMITTED BY: SYED MANZAR MEHDI Synthesis Of Cross-Linked Hydrogels From Xanthan Gum Under The Influence Of Microwave Radiation Topic
- 3. Introduction Gums are well known since ancient times as a product of plants. Plants produce gums to protect themselves as a response of biotic stresses. Term “GUM” can be described as complex polysaccharides that on dissolving can form a gel, gelatinous solution. Gums were in use since the time of civilization, ancient Egyptians, gums used for gluing strips of clothing for binding mummies. Many types of gums can be obtained from plant sources.
- 4. Introduction Xanthan gum is a sugar-like compound made by mixing aged (fermented) sugars with a certain kind of bacteria.
- 5. Natural gums Synthetic gums Types of gums 1 2 Use as a saliva substitute for dry mouth. stabilize blood sugar. Lowering cholesterol levels in people with diabetes Stomach Issues. Helps in drug delivery system sustaining the drug release
- 6. Advantages of synthetic gum Advantages Prevents cavities and strengthens enamel Improves memory Helps you lose weight Reduces stress and anxiety
- 7. Disadvantages of synthetic gums Tooth Decay. Sugared gums can with heavy use cause tooth decay, gum disease and cavities. Jaw Stress. ... Stomach Issues. ... Social distraction. ... Irregular development of facial muscles.
- 8. Natural gums Advantages of natural gums Biodegradable Biocompatible Low cost Environmental friendly processing Local availability Better patient tolerance as well as public acceptance Edible source
- 9. Need of the project We use natural gums because synthetic gums are harmful in pharmaceutical. Synthetic gums have many side effects Side products will formed and it is difficult to deal with these side products. • biodegradable • low in cost • Environmental friendly processing
- 10. Aims and Objectives The current project has been planed to Synthesize of Cross Linked hydrogels From Xanthan Gum Under the influence of microwave Radiation And further characterize them by using different bioanalytical techniques
- 11. Aims and objective 1 • Production of cross-linked hydrogel from natural gum(xanthan gum) 2 • Study the effect of microwave radiation during polymerization 3 • Study the effects of multiple factors like reaction time ,PH and solvent on the production of hydrogel 4 • Characterization of hydrogels using FTIR,SEM,XRD
- 12. Material and method All chemicals and reagents use in this study will be purchased from either E. Merck (Darmstadt. Germany) or Sigma-Aldrich (Buchs, Switzerland) The plants biopolymer matrices will be purchased form local markets and stores within Pakistan. Sample identification and authentication will be done in Department of Botany, University of Agriculture, Faisalabad. Pretreatment and purification of sample: Solution preparation
- 13. Grinding of gum-Pretreatment and purification-Identification of gum Proximate Analysis (Moisture, Ash , crude Fiber, crude fats contents) Purification Biochemical Parameters (Protein contents, sugar contents) Antioxidant Activity Total Phenolic Contents Antibacterial Activity Antifungal Activity Gelation Properties Crosslinking of Xanthan gum (Acrylamide, Citric acid) Characterization (XRD, FTIR, SEM, TGA, DSC) Statistical analysis
- 15. Work plan Water(DI) + Xanthan gum Sample collection potassium Persulphate+acrylamide and N,N’-methylenebis- acrylamide For 24 h add Reaction mixture with continuous stirring. Gx-cl-poly(AAm) separated from polyacrylamide (PAAm) React with aceton The synthesized hybrid hydrogel was soxhlet extracted allow to stand at room temperature for 24 h
- 16. References 1. Peppas N.A. and Mikos A.G., “Hydrogels in Medicine and Pharmacy—Vol. 1”, CRC Press. Inc. Boca Raton, FL, 1 (1986). 2. Peppas-Brannon L., “Absorbent Polymer Technology”, Elsevier, Amsterdam, 45 (1990). 3. Buchholz F.L., J. Chem. Edu., 73 (1996) 512. 4. Vyas S.P. and Khar R.P., “Targeted & Controlled Drug Delivery Novel CarrierSystems”, CBS Pub 5. Leenslag J.W., Pennings A.J., Bos R.R., Rozema F.R. and Boering, G., Biomaterials, 8 (1987) 70. 6. Shi F.Y., Ashby R. and Gross R.A., Macromolecules, 29 (1996) 7753. 7. Jurgens C.H., Kricheldorf H.R. and Kreiser-Saunders I., “Biomaterials in surgery”, Thieme-Verlag, New York, 112 (1998). 8. Kaith B.S. and Kumar K., Iran. Polym. J., 16 (2007) 529. 9. Kaith B.S. and Kumar K., e-polymers, no. 2 007 (2007). 10. Kaith B.S. and Kumar K., eXPRESS Polymer Letters, 1 (2007) 474. 11. Osada Y., Okuzaki H. and Hori H., Nature, 355 (1992) 242. 12. Sun S. and Mak A.F.T., J. Polym. Sci. Pol. Phys., 39 (2001) 236. lishers and distributors. New Delhi, India, 1 (2002).