NCPTT Materials Conservation Program
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This slide show presents an overview of research conducted in the National Park Service by the National Center for Preservation Technology and Training. The Materials Conservation Program focuses on understanding materials, their decay processes, and treatments that will prolong their lifespan.
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Better and cheaper than conventional method
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Contents
Introduction
Background of fracking
Evaluation of Plan
Problem Framing
Policy Framing
Policy Implementation
Monitoring and Evaluation
Policy Implementation for Stakeholder
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Introduction
Coal seam gas (CSG) is the major contributor for future fuel demand. New emerging technology called fracking is way for exploring new era of petroleum resources.
Better and cheaper than conventional method
Methods are clear but chemicals are used are still not well documented.
Fracking not only related to petroleum industry but also related to Water resource, ecology including marine ecology, health sector, air quality, and agricultural sector
Requires a joint management approach for any decision making about fracking
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Fracking also known as hydraulic fracking is a method for extraction gas and oil from deep underground using high pressure water to make crack into petroleum bearing formations.
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Ritchie & Roser, 2017
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Gas production will last nearly 50 years
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This document discusses the current state of knowledge regarding the health and safety risks of nanotechnology. It notes that while research into nanotechnology risks is growing, significant gaps remain, especially regarding long-term and chronic toxicity testing. Early studies show that surface properties and size of nanoparticles can impact transport, toxicity, and environmental fate, but more research is still needed. The document calls for increased funding of risk research, closing regulatory loopholes, voluntary standards, and stakeholder engagement to help manage risks in the face of existing uncertainties.
4. IOHA - low cost sensors
John Cherrie discusses low-cost sensors that can measure elements of the external exposome. He describes several types of portable sensors that can measure air pollution levels like gases, particles, and noise inexpensively. While sensor technology is improving with smaller sizes, lower power usage, and increased computing ability, issues around calibration, data processing, and battery life still need to be addressed before widespread use in exposome studies.
Lauren Hartzell Nichols_CV_October 2016_WEB
This curriculum vitae summarizes Lauren Hartzell Nichols' academic employment and education history. She is currently an Affiliate Assistant Professor at the University of Washington where she has held various teaching positions since 2009. Her primary areas of research and teaching are in climate ethics and environmental ethics. She received her PhD from Stanford University in 2009 and has published numerous peer-reviewed articles and book chapters on topics related to the precautionary principle and climate change policy.
Resume - Alan Rhoades
Alan Rhoades is a PhD candidate at UC Davis studying climate change impacts on California's hydrologic system. His goal is to be a climate change researcher and science communicator. He has published papers on modeling Sierra Nevada snowpack and presented his research widely. Rhoades obtained a BS in environmental science from CSU Chico and has worked on sustainability projects and research assistantships related to climate change, renewable energy, and conservation. He is proficient in climate modeling, GIS, statistics, and communication.
EOS_IJSCM_day 1
This document summarizes the goals and phases of the Mathematics and Informatics for Environmental ‘Omic Data Synthesis (‘Omics) TAP program. The program has five phases: 1) NERC consultation, 2) forming an advisory group, 3) administering bioinformatics fellowships, 4) building an environmental ‘omics network, and 5) wrapping up the program. All phases aim to establish the Environmental ‘Omics Synthesis (EOS) centre to synthesize ‘omics data as recommended by the NEOMICS strategy through building collaborations between researchers. The advisory group will oversee administering fellowships focused on using ‘omics to address challenges in understanding biodiversity, evolution, genetics, ecosystems, and more. The
Session 2 - Prof. A.M.J Ragas (AD)
The document discusses uncertainties in modeling human and ecological risks from chemicals, nanomaterials, and microplastics in the environment. Current risk management is reactive, substance-by-substance, and resource intensive. Modeling risks considers sources, emission, fate, exposure, and effects, but faces many uncertainties. For chemicals, better use and spatially explicit emissions data is needed. Fate modeling requires improved degradation data, especially for ionizing compounds. Effect modeling needs more data on mixtures, genomics, and untested substances. For nanomaterials and microplastics, long-term fate and effects are particularly uncertain due to degradation questions and lack of data.
COMPLETE GUIDE ON WRITING A DEFINITION ESSAY ON ENVIRONMENTAL SCIENCE
Find useful tips, topic suggestions and thesis statement ideas for your definition essay on environmental science in this guide by CustomWritings.com
Sand Dune Succession
This document outlines the key stages and considerations for planning and conducting a fieldwork investigation into succession in sand dune ecosystems. It discusses establishing aims, hypotheses, appropriate data collection methods, health and safety risks, data presentation and analysis techniques. Specific topics covered include transect methods, quadrat sampling, soil moisture and pH testing. The document also provides background context on sand dune succession theory, including pioneer species, seral stages, and climax communities.
Program on Mathematical and Statistical Methods for Climate and the Earth Sys...
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This document discusses challenges and opportunities for using machine learning and data mining techniques on big climate data. It describes various types of climate and Earth observation data available from satellites and models. Research highlights are presented on using pattern mining to track ocean eddies, extreme value theory to study heatwaves and rainfall, and relationship mining to study seasonal hurricane activity. The challenges of analyzing multi-scale, heterogeneous climate data are also discussed.Similar to NCPTT Materials Conservation Program (19)
Northern Territory Fracking Implementation Plan a policy review.docx
Northern Territory Fracking Implementation Plan a policy review.docx
Northern Territory Fracking Implementation Plan a policy review.docx
Northern Territory Fracking Implementation Plan a policy review.docx
Comp Research Opportunities In Preservation Technology
Comp Research Opportunities In Preservation Technology
Think Science: Nanotechnology; Heather Shipley, UTSA
Think Science: Nanotechnology; Heather Shipley, UTSA
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COMPLETE GUIDE ON WRITING A DEFINITION ESSAY ON ENVIRONMENTAL SCIENCE
Program on Mathematical and Statistical Methods for Climate and the Earth Sys...
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More from Mary Striegel
The national view of cemetery preservation compressed
This presentation was prepared for the Montana History Foundation's Cemetery Preservation Technology Workshop in Helena, June 21-23, 2018.
Striegel 2011 gws presentation compressed
This presentation provides an overview of research efforts to understand how the deepwater horizon oil spill affected cultural heritage. The focus will be on recent researh efforts by NCPTT to find appropriate cleaners to removel crude oil from historic structures. A discussion of appropriate documentation is included.
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This is a rough draft presentation originally given by Dr. Catherine Situma to the NSU research day. It forms the basis of my presentation to be given at the DOI Conference on the Environment.
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The two-day NCPTT Ornamental Iron Workshop in New Orleans included a tour of St. Louis Cemetery #2, a lunch break, a blacksmith tour, learning how to conduct condition assessments and analyze ornamental iron, and hands-on training in simple repairs, cleaning, rust conversion, priming, painting, and finishing touches for ironwork.
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NCPTT provides funding opportunities through grants to advance preservation technology solutions to conserve cultural resources facing threats of deterioration, disasters, and lack of understanding of material properties. NCPTT conducts in-house research to develop new preservation techniques, such as comparing cleaners for headstones or testing graffiti removal methods, and shares results to influence field standards. NCPTT also funds projects to disseminate technologies through training and conferences to help more professionals address preservation challenges.
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The national view of cemetery preservation compressed
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Holsinger, Bruce W. - Music, body and desire in medieval culture [2001].pdf
Music and Medieval History
Candidate young stellar objects in the S-cluster: Kinematic analysis of a sub...
Context. The observation of several L-band emission sources in the S cluster has led to a rich discussion of their nature. However, a definitive answer to the classification of the dusty objects requires an explanation for the detection of compact Doppler-shifted Brγ emission. The ionized hydrogen in combination with the observation of mid-infrared L-band continuum emission suggests that most of these sources are embedded in a dusty envelope. These embedded sources are part of the S-cluster, and their relationship to the S-stars is still under debate. To date, the question of the origin of these two populations has been vague, although all explanations favor migration processes for the individual cluster members. Aims. This work revisits the S-cluster and its dusty members orbiting the supermassive black hole SgrA* on bound Keplerian orbits from a kinematic perspective. The aim is to explore the Keplerian parameters for patterns that might imply a nonrandom distribution of the sample. Additionally, various analytical aspects are considered to address the nature of the dusty sources. Methods. Based on the photometric analysis, we estimated the individual H−K and K−L colors for the source sample and compared the results to known cluster members. The classification revealed a noticeable contrast between the S-stars and the dusty sources. To fit the flux-density distribution, we utilized the radiative transfer code HYPERION and implemented a young stellar object Class I model. We obtained the position angle from the Keplerian fit results; additionally, we analyzed the distribution of the inclinations and the longitudes of the ascending node. Results. The colors of the dusty sources suggest a stellar nature consistent with the spectral energy distribution in the near and midinfrared domains. Furthermore, the evaporation timescales of dusty and gaseous clumps in the vicinity of SgrA* are much shorter ( 2yr) than the epochs covered by the observations (≈15yr). In addition to the strong evidence for the stellar classification of the D-sources, we also find a clear disk-like pattern following the arrangements of S-stars proposed in the literature. Furthermore, we find a global intrinsic inclination for all dusty sources of 60 ± 20◦, implying a common formation process. Conclusions. The pattern of the dusty sources manifested in the distribution of the position angles, inclinations, and longitudes of the ascending node strongly suggests two different scenarios: the main-sequence stars and the dusty stellar S-cluster sources share a common formation history or migrated with a similar formation channel in the vicinity of SgrA*. Alternatively, the gravitational influence of SgrA* in combination with a massive perturber, such as a putative intermediate mass black hole in the IRS 13 cluster, forces the dusty objects and S-stars to follow a particular orbital arrangement. Key words. stars: black holes– stars: formation– Galaxy: center– galaxies: star formation
MICROBIAL INTERACTION PPT/ MICROBIAL INTERACTION AND THEIR TYPES // PLANT MIC...
MICROBIAL INTERACTION PPT/ MICROBIAL INTERACTION AND THEIR TYPES // PLANT MIC...ABHISHEK SONI NIMT INSTITUTE OF MEDICAL AND PARAMEDCIAL SCIENCES , GOVT PG COLLEGE NOIDA
Microbial interaction
Microorganisms interacts with each other and can be physically associated with another organisms in a variety of ways.
One organism can be located on the surface of another organism as an ectobiont or located within another organism as endobiont.
Microbial interaction may be positive such as mutualism, proto-cooperation, commensalism or may be negative such as parasitism, predation or competition
Types of microbial interaction
Positive interaction: mutualism, proto-cooperation, commensalism
Negative interaction: Ammensalism (antagonism), parasitism, predation, competition
I. Mutualism:
It is defined as the relationship in which each organism in interaction gets benefits from association. It is an obligatory relationship in which mutualist and host are metabolically dependent on each other.
Mutualistic relationship is very specific where one member of association cannot be replaced by another species.
Mutualism require close physical contact between interacting organisms.
Relationship of mutualism allows organisms to exist in habitat that could not occupied by either species alone.
Mutualistic relationship between organisms allows them to act as a single organism.
Examples of mutualism:
i. Lichens:
Lichens are excellent example of mutualism.
They are the association of specific fungi and certain genus of algae. In lichen, fungal partner is called mycobiont and algal partner is called
II. Syntrophism:
It is an association in which the growth of one organism either depends on or improved by the substrate provided by another organism.
In syntrophism both organism in association gets benefits.
Compound A
Utilized by population 1
Compound B
Utilized by population 2
Compound C
utilized by both Population 1+2
Products
In this theoretical example of syntrophism, population 1 is able to utilize and metabolize compound A, forming compound B but cannot metabolize beyond compound B without co-operation of population 2. Population 2is unable to utilize compound A but it can metabolize compound B forming compound C. Then both population 1 and 2 are able to carry out metabolic reaction which leads to formation of end product that neither population could produce alone.
Examples of syntrophism:
i. Methanogenic ecosystem in sludge digester
Methane produced by methanogenic bacteria depends upon interspecies hydrogen transfer by other fermentative bacteria.
Anaerobic fermentative bacteria generate CO2 and H2 utilizing carbohydrates which is then utilized by methanogenic bacteria (Methanobacter) to produce methane.
ii. Lactobacillus arobinosus and Enterococcus faecalis:
In the minimal media, Lactobacillus arobinosus and Enterococcus faecalis are able to grow together but not alone.
The synergistic relationship between E. faecalis and L. arobinosus occurs in which E. faecalis require folic acid
Compositions of iron-meteorite parent bodies constrainthe structure of the pr...
Magmatic iron-meteorite parent bodies are the earliest planetesimals in the Solar System,and they preserve information about conditions and planet-forming processes in thesolar nebula. In this study, we include comprehensive elemental compositions andfractional-crystallization modeling for iron meteorites from the cores of five differenti-ated asteroids from the inner Solar System. Together with previous results of metalliccores from the outer Solar System, we conclude that asteroidal cores from the outerSolar System have smaller sizes, elevated siderophile-element abundances, and simplercrystallization processes than those from the inner Solar System. These differences arerelated to the formation locations of the parent asteroids because the solar protoplane-tary disk varied in redox conditions, elemental distributions, and dynamics at differentheliocentric distances. Using highly siderophile-element data from iron meteorites, wereconstruct the distribution of calcium-aluminum-rich inclusions (CAIs) across theprotoplanetary disk within the first million years of Solar-System history. CAIs, the firstsolids to condense in the Solar System, formed close to the Sun. They were, however,concentrated within the outer disk and depleted within the inner disk. Future modelsof the structure and evolution of the protoplanetary disk should account for this dis-tribution pattern of CAIs.
SDSS1335+0728: The awakening of a ∼ 106M⊙ black hole⋆
Context. The early-type galaxy SDSS J133519.91+072807.4 (hereafter SDSS1335+0728), which had exhibited no prior optical variations during the preceding two decades, began showing significant nuclear variability in the Zwicky Transient Facility (ZTF) alert stream from December 2019 (as ZTF19acnskyy). This variability behaviour, coupled with the host-galaxy properties, suggests that SDSS1335+0728 hosts a ∼ 106M⊙ black hole (BH) that is currently in the process of ‘turning on’. Aims. We present a multi-wavelength photometric analysis and spectroscopic follow-up performed with the aim of better understanding the origin of the nuclear variations detected in SDSS1335+0728. Methods. We used archival photometry (from WISE, 2MASS, SDSS, GALEX, eROSITA) and spectroscopic data (from SDSS and LAMOST) to study the state of SDSS1335+0728 prior to December 2019, and new observations from Swift, SOAR/Goodman, VLT/X-shooter, and Keck/LRIS taken after its turn-on to characterise its current state. We analysed the variability of SDSS1335+0728 in the X-ray/UV/optical/mid-infrared range, modelled its spectral energy distribution prior to and after December 2019, and studied the evolution of its UV/optical spectra. Results. From our multi-wavelength photometric analysis, we find that: (a) since 2021, the UV flux (from Swift/UVOT observations) is four times brighter than the flux reported by GALEX in 2004; (b) since June 2022, the mid-infrared flux has risen more than two times, and the W1−W2 WISE colour has become redder; and (c) since February 2024, the source has begun showing X-ray emission. From our spectroscopic follow-up, we see that (i) the narrow emission line ratios are now consistent with a more energetic ionising continuum; (ii) broad emission lines are not detected; and (iii) the [OIII] line increased its flux ∼ 3.6 years after the first ZTF alert, which implies a relatively compact narrow-line-emitting region. Conclusions. We conclude that the variations observed in SDSS1335+0728 could be either explained by a ∼ 106M⊙ AGN that is just turning on or by an exotic tidal disruption event (TDE). If the former is true, SDSS1335+0728 is one of the strongest cases of an AGNobserved in the process of activating. If the latter were found to be the case, it would correspond to the longest and faintest TDE ever observed (or another class of still unknown nuclear transient). Future observations of SDSS1335+0728 are crucial to further understand its behaviour. Key words. galaxies: active– accretion, accretion discs– galaxies: individual: SDSS J133519.91+072807.4
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Centrifugation is a powerful technique used in laboratories to separate components of a heterogeneous mixture based on their density. This process utilizes centrifugal force to rapidly spin samples, causing denser particles to migrate outward more quickly than lighter ones. As a result, distinct layers form within the sample tube, allowing for easy isolation and purification of target substances.
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•Chemical
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NCPTT Materials Conservation Program
- 1. NCPTT Materials Conservation Mary F. Striegel 2014 Cultural Resources Advisory Group Natchitoches, LA
- 2. You’re not sure NCPTT’s materials conservation research can help you preserve cultural resources
- 3. Three ways materials conservation research can help you Understand materials Study Environments Develop Treatments
- 4. HOW DO CULTURAL MATERIALS CHANGE OVER TIME?
- 10. Deposition
- 13. Biocide cleaners on grave markers
- 15. In the Field
- 23. Build on existing information
- 25. DOD Standards
- 26. WHAT TREATMENTS ARE NEEDED TO PRESERVE MATERIALS?
- 29. Rust converters
- 30. Graffiti removal
- 32. NSF Grant on POSS polymers
- 38. Internships
- 39. Conclusions Knowing your materials Understanding the environment Applying appropriate treatments NCPTT’s Materials Research can help you make better preservation decisions by