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1

Mosquito Report for Jasper Ridge Biological Preserve  

E-print Network

Page 1 Mosquito Report for Jasper Ridge Biological Preserve S a n M a t e o C o u n t y M o s q u i t o A b a t e m e n t D i s t r i c t December 2006 The San Mateo County Mosquito Abatement District mosquitoes arising from the cattail marshes surround- ing Searsville Lake. This report is a summary

2

28 CFR 28.22 - The requirement to preserve biological evidence.  

Code of Federal Regulations, 2011 CFR

...The requirement to preserve biological evidence. 28.22 Section 28.22 Judicial Administration DEPARTMENT OF JUSTICE DNA IDENTIFICATION SYSTEM Preservation of Biological Evidence § 28.22 The requirement to preserve biological...

2011-07-01

3

28 CFR 28.22 - The requirement to preserve biological evidence.  

Code of Federal Regulations, 2013 CFR

...The requirement to preserve biological evidence. 28.22 Section 28.22 Judicial Administration DEPARTMENT OF JUSTICE DNA IDENTIFICATION SYSTEM Preservation of Biological Evidence § 28.22 The requirement to preserve biological...

2013-07-01

4

28 CFR 28.22 - The requirement to preserve biological evidence.  

...The requirement to preserve biological evidence. 28.22 Section 28.22 Judicial Administration DEPARTMENT OF JUSTICE DNA IDENTIFICATION SYSTEM Preservation of Biological Evidence § 28.22 The requirement to preserve biological...

2014-07-01

5

28 CFR 28.22 - The requirement to preserve biological evidence.  

Code of Federal Regulations, 2012 CFR

...The requirement to preserve biological evidence. 28.22 Section 28.22 Judicial Administration DEPARTMENT OF JUSTICE DNA IDENTIFICATION SYSTEM Preservation of Biological Evidence § 28.22 The requirement to preserve biological...

2012-07-01

6

28 CFR 28.22 - The requirement to preserve biological evidence.  

Code of Federal Regulations, 2010 CFR

...The requirement to preserve biological evidence. 28.22 Section 28.22 Judicial Administration DEPARTMENT OF JUSTICE DNA IDENTIFICATION SYSTEM Preservation of Biological Evidence § 28.22 The requirement to preserve biological...

2010-07-01

7

Survey of techniques used to preserve biological materials  

NASA Technical Reports Server (NTRS)

The techniques used to preserve biological materials are documented and summarized. The report is presented in a handbook format that categorizes the most important preservation techniques available, and includes a representative sampling of the thousands of applications of these techniques to biological materials and organisms. Details of the information coverage and method of approach are outlined. Data are given in tabular form, and an index and extensive bibliography are included.

Feinler, E. J.; Hubbard, R. W.

1972-01-01

8

Plastination: Preservation Technology Enhances Biology Teaching.  

ERIC Educational Resources Information Center

Urges the use of plastinated specimens as an alternative to traditional dissection in biology classrooms. Suggests that plastinated biological specimens heighten student interest and enhance teaching. Interview responses of students, teachers, and administrators to the use of plastinated specimens in selected high schools were found to be very…

Douglass, Claudia; Glover, Roy

2003-01-01

9

NISTIR 7928 The Biological Evidence Preservation Handbook  

E-print Network

Innocence Project Yvette Burney Scientific Investigation Division Los Angeles Police Department Dennis................................................................6 III. Packaging and Storing Biological Evidence of evidence from large/bulky items. Figure II-1: Biohazard label. Figure III-1: Metal lockers used

Magee, Joseph W.

10

Postextraction Alveolar Ridge Preservation: Biological Basis and Treatments  

PubMed Central

Following tooth extraction, the alveolar ridge undergoes an inevitable remodeling process that influences implant therapy of the edentulous area. Socket grafting is a commonly adopted therapy for the preservation of alveolar bone structures in combination or not with immediate implant placement although the biological bases lying behind this treatment modality are not fully understood and often misinterpreted. This review is intended to clarify the literature support to socket grafting in order to provide practitioners with valid tools to make a conscious decision of when and why to recommend this therapy. PMID:22737169

Pagni, Giorgio; Pellegrini, Gaia; Giannobile, William V.; Rasperini, Giulio

2012-01-01

11

Jasper Ridge Biological Preserve Annual Report 2000 -01 Stanford University  

E-print Network

scales, of the diverse array of projects taking place at the Preserve. They range from the mo- lecular involves the future of Searsville Lake and Dam and its From the Director #12;2 impact on the Preserve an aging dam and reservoir, which over its life has become fully integrated into the hydrologic, ecological

12

Jasper Ridge Biological Preserve Annual Report 2009-10  

E-print Network

component of Biology 44Y, part of the core laboratory sequence for Biology majors. The new Jasper Ridge in the knowledge to undertake purpose- ful interventions that enhance or restore key species or ecosystem functions. I hope the new projects at Jasper Ridge help launch the field of "intervention ecology" based

Fukami, Tadashi

13

Organ preservation at low temperature: a physical and biological problem  

NASA Astrophysics Data System (ADS)

Before reporting the preliminary results obtained by our group, we first review the main problems to be solved in the preservation of organs at very low temperature, before being transplanted. This cryopreservation is being presently explored in order to increase the preservation tiine of transplants and to contribute to a better control of the donor recipient compatibility. We recall that, for the isolated cells to be preserved at nitrogen liquid temperatures, as now successfully performed at industrial scale, it is necessary to immerse the cells in a solution containing more or less t,oxical additives (so-called cryopro tect ants). Furthermore cooling and warming rates must be specific of each type of cells. We then show that cryo preservation could be extrapolated to whole organs by means of vitrification, the only way to avoid any ice crystallization. This vitrification will be the result of two directions of research, the one on the elaboration of cryoprotective solutions, the least toxic possible, the other on the obtention of high enough and homogeneous cooling and warming rates. After having briefly summarized the state of research on the heart and kidneys of small mammals, we present the first results that we have obtained on perfusion at 4 ^{circ}C and the auto-transplantation of rabbit kidneys, on the toxicity of a new cryoprotectant, 2,3-butanediol, on the heart rate, and on the cooling of experimental models of organs. Avant de présenter les résultats préliminaires obtenus par notre groupe, nous passons d'abord en revue les principaux problèmes à résoudre pour conserver à très basse température des organes en vue de leur transplantation. Cette cryopréservation est une voie de recherche actuellement explorée pour augmenter la durée de conservation des greffons et permettre ainsi de mieux contrôler la compatibilité donneur-receveur. Nous rappelons que la conservation des cellules isolées à la température de l'azote liquide, actuellement réalisée avec succès à l'échelle industrielle, ne peut se faire qu'en présence de substances plus ou moins toxiques dites cryoprotectrices, et à condition de respecter des vitesses de refroidissement et de réchauffement adaptées à chaque type de cellule. Nous montrons ensuite que l'extension de la cryopréservation au cas des organes entiers ne pourra se faire qu'au moyen de la vitrification, seule solution pour éviter toute formation de glace. Cette vitrification sera l'aboutissement de 2 axes de recherche, l'un sur l'élaboration de solutions cryoprotectrices les moins toxiques possibles, l'autre sur l'obtention de vitesses de refroidissement et de réchauffement suffisamment élevées et homogènes. Après avoir brièvement résumé l'état des recherches sur le coeur et le rein de petits mammifères, nous présentons les premiers résultats que nous avons obtenus sur la perfusion à 4 ^{circ}C et l'autotransplantation de reins de lapin, sur la toxicité sur le coeur de rat d'un nouveau cryoprotecteur le 2,3-butanediol, et sur le refroidissement de systèmes modèles expérimentaux d'organes.

Aussedat, J.; Boutron, P.; Coquilhat, P.; Descotes, J. L.; Faure, G.; Ferrari, M.; Kay, L.; Mazuer, J.; Monod, P.; Odin, J.; Ray, A.

1993-02-01

14

Preliminary screening of a boron based wood preservative for biological efficacy (fungicidal) in treated timber  

Microsoft Academic Search

The resistance of Pinus radiata D.Don sapwood blocks, treated with a boron based preservative, to attack by five wood destroying fungi (Fomitopsis lilacino-gilva, Coniophora olivacea, Gloeophyllum abietinum (boron resistant), Serpula lacrymans and Perenniporia tephropora) was investigated. A phenyl pyrazole termiticide (fipronil) was also incorporated into the formulation to examine if its presence affects biological efficacy. The raw linseed oil, liquid

Simon R. Przewloka; Jeffrey A. Hann; Peter Vinden

15

Biologically mediated isotope fractionations - Biochemistry, geochemical significance and preservation in the earth's oldest sediments  

NASA Technical Reports Server (NTRS)

Preferential metabolization of isotopically light carbon and sulfur has resulted in a fractionation of the stable isotopes of these elements on a global scale, with the light species (C-12, S-32) markedly concentrated in biogenic materials. Since the biological effects are basically retained when carbon and sulfur are incorporated in sediments, the respective fractionations are propagated into the rock section of the geochemical cycle, this having consequently caused a characteristic bipartition of both elements between 'light' and 'heavy' crustal reservoirs. Preservation of the biological isotope effects in sedimentary rocks makes it possible to trace the underlying biochemical processes back over most of the geological record. According to the available evidence, biological (autotrophic) carbon fixation arose prior to 3.5(if not 3.8) billion years ago, while the emergence of dissimilatory sulfate reduction antedates the appearance of the oldest presumably bacteriogenic sulfur isotope patterns in rocks between 2.7 and 2.8 billion years old. Hence, biological control of the terrestrial carbon and sulfur cycles has been established very early in the earth's history.

Schidlowski, M.

1983-01-01

16

The Preservation of "Non-Biological" Environments in the Solar System  

NASA Astrophysics Data System (ADS)

Nature preservation will be a central element of the exploration of the Solar System, whether this emphasis is initially planned for or not. Exploration of extraterrestrial environments will generate images and scientific information that will excite the imagination of the general public throughout the world and be supportive of more funding for exploration. However, damage to the environments visited, once made public, will likely generate a backlash against exploration programs that could inhibit exploration or even bring it completely to an end. The exploration in the nineteenth century of the western United States, with landscapes aesthetically very different from those found in Europe but very similar to those existing on the Moon and on Mars, provides an excellent indication of what will happen in off-planet exploration. Nearly every place painted by a major artist or photographed by a photographer on a geological survey during that time period is today a national park or national monument. If extraterrestrial environments are not protected, the major space societies that are currently enthusiastically supportive of space agencies around the world could become political opponents, much as the Sierra Club evolved into a serious and effective critic of the U.S. Forest Service and National Park Service in the United States. At a minimum, space agencies must be protective of the historical landing sites on the Moon, avoid strip mining on the Moon that may draw criticism, and protect major features on Mars from damage, such as the Cydonian Face on Mars, Valles Marineris, the grand canyon of Mars, and Olympus Mons, a mountain three times as tall as Mount Everest. A good first step might be to establish a world-heritage-style site to protect the visible side of the Moon. Although extraterrestrial sites may initially be labeled "non-biological," caution must be taken to be protective of possible extraterrestrial life, active or dormant, even in the most unlikely places. Such concern will not pose a great burden, given that such life will most likely be microbial, and the concern will be for the preservation of species, not for the protection of the individual members of those species (eliminating any need to deal with the animal liberation and animal rights movements). The battle cry will be about the "wanton destruction" of species, not about the "unnecessary suffering" of animals. Because nature preservation has been a political reality for nearly two centuries, concern for the preservation of off-planet environments can be expected to be more intense than it was in the late nineteenth and early twentieth centuries and more effective in its impact once it begins.

Hargrove, Eugene

17

Molecular mechanisms of tolerance in tardigrades: new perspectives for preservation and stabilization of biological material.  

PubMed

Certain organisms found across a range of taxa, including bacteria, yeasts, plants and many invertebrates such as nematodes and tardigrades are able to survive almost complete loss of body water. The dry organisms may remain in this state, which is known as anhydrobiosis, for decades without apparent damage. When water again becomes available, they rapidly rehydrate and resume active life. Research in anhydrobiosis has focused mainly on sugar metabolism and stress proteins. Despite the discovery of various molecules which are involved in desiccation and water stress, knowledge of the regulatory network governing the stability of the cellular architecture and the metabolic machinery during dehydration is still fragmentary and not well understood. A combination of transcriptional, proteomic and metabolic approaches with bioinformatics tools can provide a better understanding of gene regulation that underlie the biological functions and physiology related to anhydrobiosis. The development of this concept will raise exciting possibilities and techniques for the preservation and stabilization of biological materials in the dry state. PMID:19472511

Schill, Ralph O; Mali, Brahim; Dandekar, Thomas; Schnölzer, Martina; Reuter, Dirk; Frohme, Marcus

2009-01-01

18

Jasper Ridge Biological Preserve Annual Report 2001-02 Stanford University  

E-print Network

challenge is to encourage development of a symbiotic relationship between the Preserve and the world CARSON, The Sense of Wonder, 1956 #12;1 A s our population increases and the human imprint on the world relationship between the Preserve and the world outside its borders. The building project became an important

19

Evolutionary and preservational constraints on origins of biologic groups: divergence times of eutherian mammals  

NASA Technical Reports Server (NTRS)

Some molecular clock estimates of divergence times of taxonomic groups undergoing evolutionary radiation are much older than the groups' first observed fossil record. Mathematical models of branching evolution are used to estimate the maximal rate of fossil preservation consistent with a postulated missing history, given the sum of species durations implied by early origins under a range of species origination and extinction rates. The plausibility of postulated divergence times depends on origination, extinction, and preservation rates estimated from the fossil record. For eutherian mammals, this approach suggests that it is unlikely that many modern orders arose much earlier than their oldest fossil records.

Foote, M.; Hunter, J. P.; Janis, C. M.; Sepkoski, J. J. Jr

1999-01-01

20

Antigen recovery and preservation using the microwave irradiation of biological samples for transmission electron microscopy analysis.  

PubMed

Most studies using microwave irradiation (MWI) for the preparation of tissue samples have reported an improvement in structural integrity. However, there have been few studies on the effect of microwave (MW) on antigen preservation during sample preparation prior to immunolocalization. This report documents our experience of specimen preparation using an automatic microwave apparatus to obtain antigen preservation and retrieval. We tested the effects of MW processing vs. conventional procedures on the morphology and antigenicity of two different tissues: the brain and mammary gland, whose chemical composition and anatomical organization are quite different. We chose to locate the transcription factor PPAR?/? using immunocytochemistry on brain tissue sections from hamsters. Antigen retrieval protocols involving MWI were used to restore immunoreactivity. We also studied the efficiency of the ultrastructural immunolocalization of both PPAR? and caveolin-1 following MWI vs. conventional treatment, on mammary gland tissue from mice at 10 days of lactation. Our findings showed that the treatment of tissue samples with MWI, in the context of a process lasting just a few hours from fixation to immunolocalization, enabled similar, or even better, results than conventional protocols. The quantification of immunolabeling for cav-1 indicated an increase in density of up to three-fold in tissues processed in the microwave oven. Furthermore, MW treatment permitted the localization of PPAR?/? in glutaraldehyde-fixed specimens, which was impossible in the absence of MWI. This study thus showed that techniques involving the use of microwaves could largely improve both ultrastructure and immunodetection. PMID:23962686

Aïoun, Josiane; Chat, Sophie; Bordat, Christian; Péchoux, Christine

2013-01-01

21

Production, preservation, and biological processing of mass-independent sulfur isotope fractionation in the Archean surface environment.  

PubMed

Mass-independent fractionation of sulfur isotopes (S MIF) in Archean and Paleoproterozoic rocks provides strong evidence for an anoxic atmosphere before ~2,400 Ma. However, the origin of this isotopic anomaly remains unclear, as does the identity of the molecules that carried it from the atmosphere to Earth's surface. Irrespective of the origin of S MIF, processes in the biogeochemical sulfur cycle modify the primary signal and strongly influence the S MIF preserved and observed in the geological record. Here, a detailed model of the marine sulfur cycle is used to propagate and distribute atmospherically derived S MIF from its delivery to the ocean to its preservation in the sediment. Bulk pyrite in most sediments carries weak S MIF because of microbial reduction of most sulfur compounds to form isotopically homogeneous sulfide. Locally, differential incorporation of sulfur compounds into pyrite leads to preservation of S MIF, which is predicted to be most highly variable in nonmarine and shallow-water settings. The Archean ocean is efficient in diluting primary atmospheric S MIF in the marine pools of sulfate and elemental sulfur with inputs from SO2 and H2S, respectively. Preservation of S MIF with the observed range of magnitudes requires the S MIF production mechanism to be moderately fractionating ( 20-40‰). Constraints from the marine sulfur cycle allow that either elemental sulfur or organosulfur compounds (or both) carried S MIF to the surface, with opposite sign to S MIF in SO2 and H2SO4. Optimal progress requires observations from nonmarine and shallow-water environments and experimental constraints on the reaction of photoexcited SO2 with atmospheric hydrocarbons. PMID:23572589

Halevy, Itay

2013-10-29

22

Production, preservation, and biological processing of mass-independent sulfur isotope fractionation in the Archean surface environment  

PubMed Central

Mass-independent fractionation of sulfur isotopes (S MIF) in Archean and Paleoproterozoic rocks provides strong evidence for an anoxic atmosphere before ?2,400 Ma. However, the origin of this isotopic anomaly remains unclear, as does the identity of the molecules that carried it from the atmosphere to Earth’s surface. Irrespective of the origin of S MIF, processes in the biogeochemical sulfur cycle modify the primary signal and strongly influence the S MIF preserved and observed in the geological record. Here, a detailed model of the marine sulfur cycle is used to propagate and distribute atmospherically derived S MIF from its delivery to the ocean to its preservation in the sediment. Bulk pyrite in most sediments carries weak S MIF because of microbial reduction of most sulfur compounds to form isotopically homogeneous sulfide. Locally, differential incorporation of sulfur compounds into pyrite leads to preservation of S MIF, which is predicted to be most highly variable in nonmarine and shallow-water settings. The Archean ocean is efficient in diluting primary atmospheric S MIF in the marine pools of sulfate and elemental sulfur with inputs from SO2 and H2S, respectively. Preservation of S MIF with the observed range of magnitudes requires the S MIF production mechanism to be moderately fractionating (20–40‰). Constraints from the marine sulfur cycle allow that either elemental sulfur or organosulfur compounds (or both) carried S MIF to the surface, with opposite sign to S MIF in SO2 and H2SO4. Optimal progress requires observations from nonmarine and shallow-water environments and experimental constraints on the reaction of photoexcited SO2 with atmospheric hydrocarbons. PMID:23572589

Halevy, Itay

2013-01-01

23

The Effects of Computer Animated Dissection versus Preserved Animal Dissection on the Student Achievement in a High School Biology Class.  

ERIC Educational Resources Information Center

The purpose of this study was to examine the effectiveness of computer-animated dissection techniques versus the effectiveness of traditional dissection techniques as related to student achievement. The sample used was 104 general biology students from a small, rural high school in Northeast Tennessee. Random selection was used to separate the…

Kariuki, Patrick; Paulson, Ronda

24

Complex recombination patterns arising during geminivirus coinfections preserve and demarcate biologically important intra-genome interaction networks.  

PubMed

Genetic recombination is an important process during the evolution of many virus species and occurs particularly frequently amongst begomoviruses in the single stranded DNA virus family, Geminiviridae. As in many other recombining viruses it is apparent that non-random recombination breakpoint distributions observable within begomovirus genomes sampled from nature are the product of variations both in basal recombination rates across genomes and in the over-all viability of different recombinant genomes. Whereas factors influencing basal recombination rates might include local degrees of sequence similarity between recombining genomes, nucleic acid secondary structures and genomic sensitivity to nuclease attack or breakage, the viability of recombinant genomes could be influenced by the degree to which their co-evolved protein-protein and protein-nucleotide and nucleotide-nucleotide interactions are disreputable by recombination. Here we investigate patterns of recombination that occur over 120 day long experimental infections of tomato plants with the begomoviruses Tomato yellow leaf curl virus and Tomato leaf curl Comoros virus. We show that patterns of sequence exchange between these viruses can be extraordinarily complex and present clear evidence that factors such as local degrees of sequence similarity but not genomic secondary structure strongly influence where recombination breakpoints occur. It is also apparent from our experiment that over-all patterns of recombination are strongly influenced by selection against individual recombinants displaying disrupted intra-genomic interactions such as those required for proper protein and nucleic acid folding. Crucially, we find that selection favoring the preservation of co-evolved longer-range protein-protein and protein DNA interactions is so strong that its imprint can even be used to identify the exact sequence tracts involved in these interactions. PMID:21949649

Martin, Darren P; Lefeuvre, Pierre; Varsani, Arvind; Hoareau, Murielle; Semegni, Jean-Yves; Dijoux, Betty; Vincent, Claire; Reynaud, Bernard; Lett, Jean-Michel

2011-09-01

25

Structural plasticity of calmodulin on the surface of CaF2 nanoparticles preserves its biological function.  

PubMed

Nanoparticles are increasingly used in biomedical applications and are especially attractive as biocompatible and biodegradable protein delivery systems. Herein, the interaction between biocompatible 25 nm CaF2 nanoparticles and the ubiquitous calcium sensor calmodulin has been investigated in order to assess the potential of these particles to serve as suitable surface protein carriers. Calmodulin is a multifunctional messenger protein that activates a wide variety of signaling pathways in eukaryotic cells by changing its conformation in a calcium-dependent manner. Isothermal titration calorimetry and circular dichroism studies have shown that the interaction between calmodulin and CaF2 nanoparticles occurs with physiologically relevant affinity and that the binding process is fully reversible, occurring without significant alterations in protein secondary and tertiary structures. Experiments performed with a mutant form of calmodulin having an impaired Ca(2+)-binding ability in the C-terminal lobe suggest that the EF-hand Ca(2+)-binding motifs are directly involved in the binding of calmodulin to the CaF2 matrix. The residual capability of nanoparticle-bound calmodulin to function as a calcium sensor protein, binding to and altering the activity of a target protein, was successfully probed by biochemical assays. Even if efficiently carried by CaF2 nanoparticles, calmodulin may dissociate, thus retaining the ability to bind the peptide encompassing the putative C-terminal calmodulin-binding domain of glutamate decarboxylase and activate the enzyme. We conclude that the high flexibility and structural plasticity of calmodulin are responsible for the preservation of its function when bound in high amounts to a nanoparticle surface. PMID:25367003

Astegno, Alessandra; Maresi, Elena; Marino, Valerio; Dominici, Paola; Pedroni, Marco; Piccinelli, Fabio; Dell'Orco, Daniele

2014-12-21

26

Preservation Directory  

NSDL National Science Digital Library

Persons with a penchant for preservation will find that this clearinghouse website is a top-notch resource for materials on historic preservation, preservation-based tourism, and downtown revitalization projects across the United States and Canada. The site was created in 1999 by Tim Cannan, a native of the Finger Lakes region with a professional and academic background in historic and cultural preservation. The materials on the site are divided into topical areas that include "Preservation Events & Conferences", "Grants & Funding Sources" and nine other headings. Visitors who might be less familiar with the world of historic preservation will want to look over the "Video Library". Here they will find clips of restoration projects in progress, preservation walking tours, and endangered places. Also, it is worth noting that the site contains listings and links for over 7000 history museums, 1000 downtown and main street groups, and 4500 historical societies in North America.

27

Preservation Environments  

NASA Technical Reports Server (NTRS)

The long-term preservation of digital entities requires mechanisms to manage the authenticity of massive data collections that are written to archival storage systems. Preservation environments impose authenticity constraints and manage the evolution of the storage system technology by building infrastructure independent solutions. This seeming paradox, the need for large archives, while avoiding dependence upon vendor specific solutions, is resolved through use of data grid technology. Data grids provide the storage repository abstractions that make it possible to migrate collections between vendor specific products, while ensuring the authenticity of the archived data. Data grids provide the software infrastructure that interfaces vendor-specific storage archives to preservation environments.

Moore, Reagan W.

2004-01-01

28

Preservation Online  

NSDL National Science Digital Library

The National Trust for Historic Preservation has received a number of awards for its magazine, Preservation, and their online version is well worth a look. The site is quite nice, and it contains brief profiles of current preservation stories written especially for this website. Recent stories have included profiles of neon signs in Los Angeles, brewery renovations in Milwaukee, and a list of the ten most endangered Civil War battlefields. The site is rounded out by an online archive which allows visitors to search back issues from 1992 to 2006.

29

Urine Preservative  

NASA Technical Reports Server (NTRS)

Disclosed is CPG, a combination of a chlorhexidine salt (such as chlorhexidine digluconate, chlorhexidine diacetate, or chlorhexidine dichloride) and n-propyl gallate that can be used at ambient temperatures as a urine preservative.

Smith, Scott M. (Inventor); Nillen, Jeannie (Inventor)

2001-01-01

30

Preservation News  

NSDL National Science Digital Library

The history of historic preservation in the United States is a fascinating one, even if it contains a few moments of devastating tragedy, such as when the historic Pennsylvania Station was demolished in 1964. Scholars and preservation activists will appreciate learning that Cornell University has digitized the archives of "Preservation News". Published by the National Trust for Historic Preservation, this archive contains every issue from 1960 to 1995 (minus two issues), and is replete with interesting editorials, photographs, and news about significant restoration projects during this period. Visitors to the archive can browse through the issues chronologically, or they can also perform a full-text search. Overall, it's a great resource, and one that is worth telling friends with an interest in such matters.

2005-01-01

31

Preservation Leaflets  

NSDL National Science Digital Library

Available for the first time in electronic format, this third edition of Preservation of Library and Archival Materials: A Manual from the Northeast Document Conservation Center (NEDCC) is a valuable addition to the professional literature for librarians, archivists, and conservators. Founded in 1973, NEDCC is the largest conservation center for paper-based materials in the United States. Since its founding, NEDCC has disseminated preservation information via its series of technical leaflets. The Manual is a compilation of these leaflets, newly revised and updated. The Manual format, consisting of short leaflets with bibliographies, arranged in six browseable sections that can also be searched quickly by subject, is perfect for electronic distribution.

Ogden, Sherelyn

2005-11-09

32

Preservation Matters  

ERIC Educational Resources Information Center

One must undertake multi-institutional efforts that include universities, archives, museums, libraries and community-based arts organizations and the artists to preserve Latino art history. Arts infrastructure can be strengthened by various Chicano Studies Research Center projects that are concerned with archive building and scholarship, and with…

Noriega, Chon A.

2005-01-01

33

Digital Preservation.  

ERIC Educational Resources Information Center

Reviews research on digital preservation issues, including born-digital and digitally recreated documents. Discusses electronic records research; metadata and other standards; electronic mail; Web-based documents; moving images media; selection of materials for digitization, including primary sources; administrative issues; media stability…

Yakel, Elizabeth

2001-01-01

34

Preserving Biodiversity  

NSDL National Science Digital Library

This website is part of National Geographic's Xpeditions Hall and includes lesson plans and activities related to the topic of biodiversity. The site covers ecosystems, endangered species, why preserving biodiversity is necessary, and how captive breeding has been used to try and save some species from extinction. These lesson plans were written by educators and have been tested in the classroom.

35

Records Preservation  

USGS Multimedia Gallery

Older materials and recently arrived items in the Field Records Collection are in various states of preservation and documentation. In the current reorganization project, items are inventoried for content, transferred to archival storage containers, and archived as shelf items (notebooks and file fo...

2009-04-09

36

BIOLOG  

EPA Science Inventory

BIOLOG contains more than 43,000 citations to literature on microbial degradation and toxicity of more than 6,000 chemicals. Records are organized by CAS Registry Number and by 6 categories (i.e., biodegradation/toxicity; oxygen condition (anaerobic/aerobic); culture type (pure e...

37

Preservation of Digital Objects.  

ERIC Educational Resources Information Center

Presents a literature review that covers the following topics related to preservation of digital objects: practical examples; stakeholders; recordkeeping standards; genre-specific problems; trusted repository standards; preservation methods; preservation metadata standards; and future directions. (Contains 82 references.) (MES)

Galloway, Patricia

2004-01-01

38

Soft Tissue Preservation in Terrestrial Mesozoic Vertebrates  

NASA Astrophysics Data System (ADS)

Exceptionally preserved fossils -- i.e., those that retain, in some manner, labile components of organisms that are normally degraded far too quickly to enter the fossil record -- hold the greatest potential for understanding aspects of the biology of long-extinct animals and are the best targets for the search for endogenous biomolecules. Yet the modes of preservation of these labile components, and exactly what remains of the original composition, are not well understood. Here, I review a selection of cases of soft tissue preservation in Mesozoic vertebrates, examine chemical and environmental factors that may influence such preservation, explore the potential of these fossils for high-resolution analytical studies, and suggest clarification of terminologies and criteria for determining the endogeneity of source and the degree of preservation of these well-preserved tissues.

Schweitzer, Mary Higby

2011-05-01

39

Formax Preserved Birds  

ERIC Educational Resources Information Center

A quick, simple method for preserving bird specimens using borax and a formalin solution is described. Procedures for injecting and mounting the specimens are given along with certain restrictions on preserving specimens. (MA)

Sheridan, Philip

1978-01-01

40

Preserve the Investment-Antibiological Spray  

E-print Network

biological attack once it is put into service. The initial pre-treatment of the wood by the pressure treatment method is generally inade quate for the long-term protection of the framework and other wood components from the devastation of internal wood... lumber pre-treatment. THE PROBLEM ??.. DECAY ORGANISMS Preservative spray treatment is specifically designed to prevent wood rotting fungi from developing in the plenum area of a cooling tower. The preservation technique is to prevent or inimize...

Reidenbach, R.

41

Colourings and preservatives in food.  

PubMed

Colours and preservatives are only two of the many classes of additives in food but they are of interest because many reported cases of sensitivity involve these two groups of substances. Preservatives present the greatest potential health hazard being, by definition, biologically active. Colours and other additives are required to perform a technological function whilst remaining as biologically inert as possible. Food additives are controlled by the Food and Drugs Act 1955 on the basis of advice from the Food Advisory Committee (FAC). Lists of the permitted preservatives and colourings are available, together with details of restrictions on their uses; this information is continually being updated. Food labelling regulations mean that some information about additives can be determined from the labelling--but even if an additive is not listed on the package, one cannot always assume that it is not present in the product, since additives coming through in the original ingredients need not always be listed. Other exemptions also exist, so there can be no absolute certainty about the presence, or absence, of a specific additive. That information can only be obtained by contacting the manufacturer. PMID:6526689

Denner, W H

1984-12-01

42

Jasper Ridge Biological Preserve Annual Report 200708  

E-print Network

as the site of high-impact ecological research. The best-known studies reflect years of effort and the unique. These studies, whether they are about impacts of climate change, the structure of populations, or the cycling of nutri- ents, are a persuasive argument for maintaining research sites like Jasper Ridge

43

Jasper Ridge Biological Preserve Annual Report 200607  

E-print Network

Gore strongly affirms that science really can make a difference. For many years, the scientific and that we are headed for what former Vice President Gore calls a "planetary emergency." From the Faculty and passionate public leadership. The IPCC is providing the first and Al Gore is providing the second. High

44

Technical Working Group on Biological Evidence Preservation  

E-print Network

Evidence Management: Assessment of Barriers, Benefits, and Costs to Implementation (To be released In the exercise of his/her duties, the property and evidence custodian may determine the status of cases in his

Perkins, Richard A.

45

PROGRESS IN BLOOD PRESERVATION  

PubMed Central

Disodium ethylenediamine tetraacetate (Na2EDTA) is a powerful anticoagulant for blood. It preserves the cellular elements of the blood better than the anticoagulants commonly used. It is practically atoxic and almost completely excreted. Blood preserved with the disodium ethylenediamine tetraacetate is useful for transfusion after storage of three to four weeks. The addition of glucose and raffinose increases the survival time of the erythrocytes for from four to six weeks. The disodium calcium complex may be used for the preservation of whole blood. It is completely atoxic. Ethyl alcohol-saline-sugar solutions preserve erythrocytes for at least 150 days; they are excellent preservatives for the agglutinogens. Whole blood preserved with glycerin-raffinose-glucose may be frozen at —20° C. for at least two months, and probably for a longer period, without excessive hemolysis after thawing. PMID:13190434

Proescher, Frederick; Nolan, Jean

1954-01-01

46

Scientific Data Preservation  

E-print Network

possible and lead to an enhancement of the initial investment. Data observatories, based on open accessIrtual observatory In astrophysIcs c. surace crystallography open Databases anD preservatIon: a WorlD-WIDe InItIatIve management anD preservatIon c.cérin,m.lebbah,h.azzag scIentIfIc Data preservatIon, copyrIght anD open sc

Paris-Sud XI, Université de

47

National Film Preservation Foundation  

NSDL National Science Digital Library

Created by the United States Congress, the National Film Preservation Foundation provides nationwide support to the preservation of American films of cultural and historical significance, along with improving film access for study, education, and exhibition. Located in San Francisco, the Foundation also awards grants to various film archives and preservations agencies who are also dedicated to preserving important landmarks in American cinematic history. Information on the site includes Preservation Basics, which talks about the importance of film preservation and the nature and chemistry of film decay. A grants and projects section offers information about applying for a film preservation grant from the Foundation and about ongoing preservation projects, like the Saving the Silents: The American Silent Fiction Film Project. In addition, the site contains a complete listing (by title, date, and archive) of the 500 films helped preserved by the Foundation. Film researchers and scholars will find a map of the United States that lists existing film archives and study centers around the country both helpful and a useful tool for determining the direction of their research.

48

Preservation 11/8/2011 Preservation  

E-print Network

Program Conservation Treatments Gift Preview Procedure Preservation Week Seven Deadly Sins Exhibit for Long Review Release Research: Circulation Holdings: CU (copies, other eds.), WorldCat, Alliance Review - Research ·Short Review ·Plus: ·Condition of other CU copies ·WorldCat holdings for: ·Other

Stowell, Michael

49

Fertility preservation during cancer treatment: clinical guidelines  

PubMed Central

The majority of children, adolescents, and young adults diagnosed with cancer today will become long-term survivors. The threat to fertility that cancer treatments pose to young patients cannot be prevented in many cases, and thus research into methods for fertility preservation is developing, aiming at offering cancer patients the ability to have biologically related children in the future. This paper discusses the current status of fertility preservation methods when infertility risks are related to surgical oncologic treatments, radiation therapy, or chemotherapy. Several scientific groups and societies have developed consensus documents and guidelines for fertility preservation. Decisions about fertility and imminent potentially gonadotoxic therapies must be made rapidly. Timely and complete information on the impact of cancer treatment on fertility and fertility preservation options should be presented to all patients when a cancer treatment is planned. PMID:24623991

Rodriguez-Wallberg, Kenny A; Oktay, Kutluk

2014-01-01

50

Preserving digital information forever  

Microsoft Academic Search

Well within our lifetime we can expect to see most information being created, stored and used digitally. Despite the growing importance of digital data, the wider community pays almost no attention to the problems of preserving this digital information for the future. Even within the archival and library communities most work on digital preservation has been theoretical, not practical, and

Andrew Waugh; Ross Wilkinson; Brendan Hills; Jon Dell'oro

2000-01-01

51

Protein Preservation BIOMATERIALS  

E-print Network

Protein Preservation BIOMATERIALS Our goal is to develop measurements for characterizing sugar-based glasses with respect to their ability to serve as preservation media for therapeutic proteins to the stability of proteins in stabilizing sugar-based glass. This property had been completely overlooked

52

Why Preserve Biodiversity?  

NSDL National Science Digital Library

This lesson plan stresses the importance of maintaining ecosystems and explores the various arguments in favor of preserving the biodiversity of Earth. Students will view photos of endangered species and discuss why these animals are threatened and why they should be protected; learn the meaning of biodiversity, ecosystem, and extinction; explain why all members of an ecosystem are important; list the reasons why biodiversity should be preserved; read articles on various arguments in favor of preserving biodiversity; and write essays in which they explain what they feel are the most compelling reasons for preserving biodiversity and also describe the arguments they think would be most likely to convince the general public that biodiversity should be preserved.

53

Environmental Controls on Shipwreck Preservation: The Irish Context  

Microsoft Academic Search

A discussion is presented of environmental controls that affect the preservation of archaeological artefacts in the marine environment. Physical, biological and chemical degradation processes are discussed although it is appreciated that these processes operate in conjunction and often in a site-specific manner. Two Irish case studies are presented of environmental controls on shipwreck preservation: The Kish Bank, Outer Dublin Bay

A. J. Wheeler

2002-01-01

54

Mojave National Preserve  

NSDL National Science Digital Library

This National Park Service site contains sections on: desert ecology, with explanations of the desert types (rain shadow deserts, coastal deserts, and remote interior basins), and data on desert population growth; desert plants and animals; history of the preserve including Mojave Indian and Black homesteaders history; recreational information; education, with a list of rangers to call or email for curriculum programs; management issues, including a Final Environmental Impact Statement and General Management Plan; and maps of the preserve. There is also an online story book for kids about desert tortoises and links to information on the geology (as well as geological maps) of the preserve.

55

Preservation Map of Europe  

NSDL National Science Digital Library

In an effort to stimulate international information exchange, cooperative projects, and research, the European Commission on Preservation and Access (ECPA) has created an online directory of European organizations working in the preservation field. This directory is based on a survey conducted over the past year. For each of the twenty-five countries currently listed there is a section on national policy as it relates to preservation in libraries and archives, followed by background information on individual organizations, projects, and training courses. Background information includes contacts, email or web access if available, and a brief description of activities. Users can search the preservation map database by organization name, project focus, training availability, or by keyword.

56

National Preservation Institute  

NSDL National Science Digital Library

The National Preservation Institute (NPI) "offers continuing education and professional training for those involved in the management, preservation, and stewardship of cultural heritage." The NPI website is a treasure trove of material for people interested in such matters, along with information on scholarships, online resources, and the Institute's upcoming seminars. The Resources area includes a set of useful links to Internet resources and a very nice set of tools for cultural resource managers. These tools include technical documents designed to be used in the formal transfer of historic properties, along with key documents about the National Environmental Policy Act. In the Scholarships area, visitors can learn about scholarships offered by the NPI and the National Endowment for the Arts dealing with historic preservation. Additionally, visitors can sign up for the NPI mailing list and learn more about seminars on cultural and natural resources management.

2012-06-08

57

Preservation North Carolina  

NSDL National Science Digital Library

Preservation North Carolina was created in 1939, and works to promote and protect the buildings and landscape of the Tarheel State. The organization has five regional offices across the state and visitors can learn about their ambitious mission and work on this well-designed site. Here visitors can make their way through Events, In the News, and Features. This last area offers visitors insights into recent projects completed by the organization, along with instructive lessons for others involved in historic preservation, architecture, and urban design projects. The Get Answers area is a real gem, as it contains answers to questions like "How do I repair my old house?" "How can I protect my neighborhood?" and "Is preservation good for the environment?"

2013-01-01

58

PreserveNet  

NSDL National Science Digital Library

The Internet allows many interested communities that may be spread across great distances to share information, and PreserveNet is just such a community. Since 1994, preservationists have had a fine resource to draw on at the PreserveNet website. The site has been redesigned several times since its creation, and currently visitors to the site can find out about funding sources for projects, employment opportunities, and upcoming conferences and related events. Along with these sections, visitors may also wish to take a look through the “Legal” section, which offers links to summaries of court cases related to historic preservation and also to the codes of federal regulation. Finally, the site also has a links area, which contains numerous links categorized by theme, such as cultural studies, sprawl, and maritime resources.

59

A Mathematical Model of Evolutionary Pressures Regulating Self-Preservation and Self-Destruction.  

ERIC Educational Resources Information Center

Focuses upon self-preservation, as it pervades the general patterns of behavior of all organisms, over the totality of biological evolution. Asserts that self-preservation has definable limitations that can be modeled mathematically. Suggests natural selection does not invariably favor tendencies toward self-preservation. Argues that reproduction…

de Catanzaro, Denys

1986-01-01

60

Preserving digital local news  

Microsoft Academic Search

Much local news -- important documentation of local history -- is being lost. The fact that a lot of news media is now available digitally, presents new opportunities but also new challenges for such preservation. We explore issues and approaches for collection and management of born digital local news. Purpose Design\\/methodology\\/approach\\/findings We examine several specific bottlenecks for implementing this project.

Robert B. Allen; Kirsten A. Johnson

2008-01-01

61

Paints and Preservatives.  

ERIC Educational Resources Information Center

The publication contains an outline for use by agriculture teachers in developing a teaching plan for a unit on paints and preservatives. The topics included are (1) recognizing, solving, and preventing paint problems and (2) operating and using power spray painting equipment. Items presented for each topic are: the situation, (intended to inform…

Powell, Larry E.; Miller, Larry E.

62

Digital Preservation Tools Showcase  

NSDL National Science Digital Library

The National Digital Information Infrastructure and Preservation Program works with the Library of Congress to craft high-quality solutions to the problems facing a wide array of digital management initiatives across different sectors. Part of their work includes compiling a list of helpful tools for persons within the digital preservation community. On this site, visitors can examine over 40 tools and services that have been identified as of late. Sortable categories include Tool Type, Usage, and Content Domain. Within each of these, visitors will find a brief description, information about the intended user audience, and the basic function of each resource. Some of the items here include Recollection, the Simile Exhibit, and Voyeur, which is a web-based text analysis environment that can use texts in a variety of formats.

63

Poweshiek History Preservation Project  

NSDL National Science Digital Library

The Poweshiek History Preservation Project is a joint effort between the Grinnell College Libraries and the Drake Community Library to preserve the history of the people and places of Poweshiek County. Over the years, dozens of community members have brought in letters, photographs, scrapbooks, ledgers, and other documents that tell the area's history. This site contains over 120 items, including photos of roadwork construction, local churches, museums, and portraits of prominent community members. Most of the items here date from the late 19th and early 20th century and they provide a remarkable look into the changes throughout the community during this period. Additionally, the site contains several oral histories from locals who have lived here for decades. Visitors can search through the offering by date, type, or geographic coverage.

64

The Signal: Digital Preservation  

NSDL National Science Digital Library

Librarians, information technology specialists, and others will find much to enjoy on this excellent collaborative blog created by the Library of Congress. Called "The Signal," it covers "exciting new developments that have an impact on digital preservation and access." There are 12 experts who contribute posts to the blog on a regular basis and there are well over 400 posts to browse through here. First-time visitors can look through the Categories area, which collects posts into themes such as Digital Content, Outreach and Events, and Tools and Infrastructure. Recent posts include "Hardware Matters," "What Do Researchers Want From Institutions that Preserve Digital Content?" and "Reality Check: What Most People Actually Do with Their Personal Digital Archives." Users are also encouraged to add their own comments and thoughts on each post or suggest materials for possible coverage by the site. [KMG

2013-06-05

65

National Film Preservation Board  

NSDL National Science Digital Library

What do The Big Sleep, The Great Dictator, Harold and Maude, Knute Rockne, All American, and Wings have in common? They, along with 20 other films, have been selected to the National Film Registry of the National Film Preservation Board. The NFPB is a "public advisory group to the Librarian of Congress...that...works to ensure the survival, conservation and increased public availability of America's film heritage, including: advising the Librarian on the annual selection of films to the National Film Registry." In addition to the 1997 list, users can find a comprehensive list of titles added to the registry between 1989-1997, a list of NFPB members, and links from the 1989-96 National Film Registry to their credits as they appear in the Internet Movie Database. The NFPB also recently released a report and three public testimonies on the state of television and video preservation.

66

Tree preserving embedding  

PubMed Central

The goal of dimensionality reduction is to embed high-dimensional data in a low-dimensional space while preserving structure in the data relevant to exploratory data analysis such as clusters. However, existing dimensionality reduction methods often either fail to separate clusters due to the crowding problem or can only separate clusters at a single resolution. We develop a new approach to dimensionality reduction: tree preserving embedding. Our approach uses the topological notion of connectedness to separate clusters at all resolutions. We provide a formal guarantee of cluster separation for our approach that holds for finite samples. Our approach requires no parameters and can handle general types of data, making it easy to use in practice and suggesting new strategies for robust data visualization. PMID:21949369

Shieh, Albert D.; Hashimoto, Tatsunori B.; Airoldi, Edoardo M.

2011-01-01

67

Steganography Preserving Statistical Properties  

Microsoft Academic Search

Steganographic modifications must not noticeably change characteristics of the cover data known to an attacker. However, it\\u000a is a difficult task to define an appropriate set of features that should be preserved. This article investigates possibilities\\u000a to maintain statistical properties while embedding information. As an example, the simple embedding function “overwriting\\u000a the least significant bits” is discussed, w.r.t. greyscale images

Elke Franz

2002-01-01

68

Enterocins in food preservation.  

PubMed

The Enterococcus genus, a member of the Lactic Acid Bacteria (LAB) is found in various environments, but more particularly in the intestines of humans and other animals. Although sometimes associated with pathogenicity these bacteria have many benefits. They have been found in traditional artisanal fermented products, are used as probiotic cultures and nowadays extensively studied for the production of bacteriocins--the enterocins. Many of these enterocins have been found to be active against Listeria monocytogenes, and a few have also been reported to be active even against Gram negative bacteria, an unusual property for the bacteriocins produced by LAB. These properties have resulted in many studies describing the use of enterocins as preservatives in foods of animal and vegetable origin. This review covers the most recent information on the use of enterocins as food preservatives, either produced in-situ by the addition of enterocin producing strains or as external preservatives in the form of purified or semi-purified extracts, to prevent the growth of spoilage and pathogenic microorganisms. PMID:20399522

Khan, Haider; Flint, Steve; Yu, Pak-Lam

2010-06-30

69

Fertility Preservation in Girls  

PubMed Central

Children that undergo treatment for cancer are at risk of suffering from subfertility or hormonal dysfunction due to the detrimental effects of radiotherapy and chemotherapeutic agents on the gonads. Cryopreservation of ovarian tissue prior to treatment offers the possibility of restoring gonadal function after resumption of therapy. Effective counseling and management of pediatric patients is crucial for preserving their future reproductive potential. The purpose of this article is to review recent literature and to revise recommendations we made in a 2007 article. Pediatric hemato-oncology, reproductive endocrinology, surgery, anesthesia and bioethics perspectives are discussed and integrated to propose guidelines for offering ovarian cryopreservation to premenarcheal girls with cancer. PMID:22496695

Michaeli, Jennia; Weintraub, Michael; Gross, Eitan; Ginosar, Yehuda; Ravitsky, Vardit; Eizenman, Einat; Mitrani, Eduardo; Lebovich, Meital; Laufer, Neri; Kennedy, Stephen; Revel, Ariel

2012-01-01

70

Preserving Perishables (Dormavac)  

NASA Technical Reports Server (NTRS)

A new commercial product that can preserve perishable commodities for weeks without freezing, so that they can be shipped fresh without the cost of air freight, has been developed by Grumman Corporation, Bethpage, Long Island, New York. The development benefited from the company's experience in developing the environmental control system for the Lunar Module, which delivered Apollo astronauts to the surface of the moon. Called Dormavac, the system provides a commodity-preserving environment within an aluminum container that can be transported by truck, rail or ship. Dormavac creates a cold-but above freezing-environment with high relative humidity and very low air pressure. The saturated air minimizes commodity weight loss and the air is automatically changed several times an hour to flush away odors and harmful gases released by the commodities. According to company literature, Dormavac significantly extends the transportation life of perishables. For example, pork has a normal cold storage life of about seven days, beef two weeks and tomatoes three weeks; with Dormavac, pork remains fresh for three weeks, beef more than six weeks and tomatoes seven weeks or more. Dormavac is manufactured and marketed by Grumman Allied Industries, Woodbury, New York. In developing the system, Grumman Allied drew upon the technological resources of another company subsidiary, Grumman Aerospace. Engineers who had earlier worked on Lunar Module environmental control brought their know-how and experience to the Dormavac development.

1979-01-01

71

Format-Preserving Encryption  

NASA Astrophysics Data System (ADS)

Format-preserving encryption (FPE) encrypts a plaintext of some specified format into a ciphertext of identical format—for example, encrypting a valid credit-card number into a valid credit-card number. The problem has been known for some time, but it has lacked a fully general and rigorous treatment. We provide one, starting off by formally defining FPE and security goals for it. We investigate the natural approach for achieving FPE on complex domains, the “rank-then-encipher” approach, and explore what it can and cannot do. We describe two flavors of unbalanced Feistel networks that can be used for achieving FPE, and we prove new security results for each. We revisit the cycle-walking approach for enciphering on a non-sparse subset of an encipherable domain, showing that the timing information that may be divulged by cycle walking is not a damaging thing to leak.

Bellare, Mihir; Ristenpart, Thomas; Rogaway, Phillip; Stegers, Till

72

[The creation of genetic cryobanks and the use of the methods of developmental biology as a means for preserving rare animal species. III. The outlook, problems and limits: selection, modifications and mutations].  

PubMed

A review of our own and literature data about perspectives, problems and limitations in the use of cryoconservation techniques and methods of developmental biology for the conservation of genetic resources is presented. It is demonstrated that the use of these methods may result in the selection and possibly leads to modifications and mutations in germ cells and embryos and in this way may change the genetic structure of restored populations as compared with the original ones. The need to improve current techniques of cryoconservation and accompanying biotechnological procedures in order to abolish these undesirable genetic effects is emphasized. PMID:9518299

Amstislavski?, S Ia; Krivokharchenko, A S; Rott, N N

1997-01-01

73

National Trust for Historic Preservation  

NSDL National Science Digital Library

Chartered by the United States Congress over fifty years ago, the National Trust for Historic Preservation is a private, nonprofit organization which was formed in order "to encourage public participation in the preservation of sites, buildings, and objects significant in American history." Since that time, the National Trust has worked to preserve a host of structures that have some importance to American culture and history, along with providing stewardship to 21 sites (including the home and studio of Frank Lloyd Wright) under their immediate direction. From the home page, visitors can learn about assistance programs available from the National Trust for preserving local Main Streets or structures, along with learning about the various sites administered by the Trust. Perhaps the most helpful section of the site is the area devoted to articles from the TrustâÂÂs monthly publication, Preservation. Here visitors can learn about ongoing preservation issues and read selected issues from the current issue and the online archives.

74

CEDARS: Digital Preservation and Metadata  

Microsoft Academic Search

CEDARS (CURL Exemplars in Digital ARchiveS) is a UK digital preservation project funded by JISC through eLib. Lead sites in the project are the Universities of Cambridge, Leeds and Oxford. The project aims to promote awareness of the importance of digital preservation, to produce strategic frameworks for digital collection management policies and to promote methods appropriate for long-term preservation. An

Michael Day

75

[Allergy to preservatives].  

PubMed

This study concerns 465 patients with dermatitis. The clinical history suggested allergy to cosmetics, drugs, industrial products or clothes. These patients were tested with 29 preservatives chosen among the most frequently employed or most sensitising products. Seven french clinics of Dermatology were involved in this study during one year. The patients' age varied between 2 years old and 80 years old. Positive reactions were seen mostly with formaldehyde (4.7 p. 100), Bronopol (4.7 p. 100), ammoniated mercury chloride (3.8 p. 100), benzoic acid (2.1 p. 100), sodium benzoate (1.9 p. 100), parabens (1.9 p. 100), dichlorophen (1.7 p. 100), chloracetamid (1.5 p. 100), benzyl benzoate (1.5 p. 100), Germall 115 (1.2 p. 100), butylhydroxyanisol (1 p. 100) and Dowicil (0.8 p. 100). The incidence of sensitivity to formaldehyde, Bronopol, ammoniated mercury chloride is too high; their use should decrease. Patients sensitive to benzoic acid, benzyl benzoate are not rare. Chloracetamid whose frequency of uses seems to be rather low is a very sensitising product. Parabens which are widely used were seldom found positive; nearly all cases are caused by topical medications. PMID:6221686

Meynadier, J M; Meynadier, J; Colmas, A; Castelain, P Y; Ducombs, G; Chabeau, G; Lacroix, M; Martin, P; Ngangu, Z

1982-01-01

76

NEW APPROACHES TO THE PRESERVATION OF CONTAMINANTS IN WATER SAMPLES  

EPA Science Inventory

The potential of antibiotics, chemical biocides and lytic enzymes in preserving nutrients, biological oxygen demand and oil and grease in water and sewage effluents was studied. Preliminary studies concerning the effect of drugs on cell growth and oxygen utilization in samples st...

77

FOOD PRESERVATION SERIES RECOMMENDED VARIETIES  

E-print Network

FOOD PRESERVATION SERIES RECOMMENDED VARIETIES hOW TO STORE QUICK AND EASY SERVING TIPS Peaches freestone" ( red coloring). Suitable choices for freezing and canning include Crest Haven, Red Haven for preserves. yield Freestones ­ approximately 15 percent from pits and skins. FOOD SAFETY TIPS 1 pound 3

78

FOOD PRESERVATION SERIES RECOMMENDED VARIETIES  

E-print Network

FOOD PRESERVATION SERIES RECOMMENDED VARIETIES PearsMichigan-grown pears are available August to 25 quarts canned (2 ½ pounds per quart) FOOD SAFETY TIPS hOW TO STORE Purchase fruits. WO1043 #12;how to preserve FREEZING OF PEARS Select pears that are well ripened and firm

79

The Preservation of Digital Content  

ERIC Educational Resources Information Center

The authors are conducting a three-part study to evaluate current trends in the preservation of digital content, with an emphasis on electronic records. The study emanated from the authors' work on the Preservation Task Force of the International Research on Permanent Authentic Records in Electronic Systems (InterPARES) project. This article…

Cloonan, Michele Valerie; Sanett, Shelby

2005-01-01

80

Effectiveness of Family Preservation Services.  

ERIC Educational Resources Information Center

Reviews recent studies of family preservation and related family-strengthening programs. Estimates the effect sizes of outcomes in studies with control or comparison conditions. Also identifies a set of core services that characterize innovative family preservation programs in child welfare, multisystemic family treatment in juvenile justice, and…

Fraser, Mark W.; Nelson, Kristine E.; Rivard, Jeanne C.

1997-01-01

81

Building Preservation Knowledge in Brazil.  

ERIC Educational Resources Information Center

The project to translate into Portuguese and disseminate preservation knowledge was part of a broader partnership between the Council on Library and Information Resources, which incorporates the former Commission on Preservation and Access, and a consortium of Brazilian archival, library, and museum institutions. The partnership was intended to…

Beck, Ingrid

82

MUSEUM OF WILDLIFE AND FISH BIOLOGY DEPT. OF WILDLIFE, FISH AND CONSERVATION BIOLOGY  

E-print Network

MUSEUM OF WILDLIFE AND FISH BIOLOGY DEPT. OF WILDLIFE, FISH AND CONSERVATION BIOLOGY 1 SHIELDS AVE-4154 MUSEUM OF WILDLIFE AND FISH BIOLOGY Education and Conservation through PreservationSM MWFB POLICY ON DONATIONS OF SPECIMENS OR ARCHIVAL MATERIAL The Museum of Wildlife and Fish Biology (MWFB) may accept

Todd, Brian

83

Cancer and fertility preservation: fertility preservation in breast cancer patients  

Microsoft Academic Search

Aggressive chemotherapy has improved the life expectancy for reproductive-age women with breast cancer, but it often causes\\u000a infertility or premature ovarian failure due to destruction of the ovarian reserve. Many questions concerning fertility preservation\\u000a in breast cancer patients remain unanswered – for example, whether fertility preservation methods interfere with chemotherapy,\\u000a and whether subsequent pregnancy has negative effects on the prognosis.

Theodoros Maltaris; Michael Weigel; Andreas Mueller; Marcus Schmidt; Rudolf Seufert; Franz Fischl; Heinz Koelbl; Ralf Dittrich

2008-01-01

84

Principles of Low Temperature Cell Preservation  

Microsoft Academic Search

Cell transplantation is becoming an important technique for treatment of heart failure. Preservation is an integral step in any procedure using cells. There are two primary modes of cell preservation at low temperature, hypothermic preservation at temperatures above freezing and cryogenic preservation at temperatures below freezing. Optimal preservation protocols require a fundamental understanding of the principles involved. This review briefly

Boris Rubinsky

2003-01-01

85

Marine Biology  

E-print Network

this  door. ”   Marine  Biology   I  joined  the  military  RIVERSIDE   Marine  Biology   A Thesis submitted in partialBiology                                                                                                                        

Zaffino, Kyle

2013-01-01

86

Privacy-preserving data mining  

E-print Network

In the research of privacy-preserving data mining, we address issues related to extracting knowledge from large amounts of data without violating the privacy of the data owners. In this study, we first introduce an integrated baseline architecture...

Zhang, Nan

2009-05-15

87

Treatment of Wood Preserving Wastewater  

E-print Network

The wastewater produced by the wood preserving industry presents a difficult problem to treat economically. A review of the literature indicates the size of the industry has limited the pursuit of an orderly and economic solution. Atmospheric...

Reynolds, T. D.; Shack, P. A.

88

Montana State Historic Preservation Office  

NSDL National Science Digital Library

The Montana State Historic Preservation Office works with dozens of partners across Big Sky country to preserve the state's cultural and historic places. The website for the Office contains information about their staff, historic architecture, archaeological projects, and cultural records. Visitors can click on the State-owned Heritage Properties link, located at the bottom of the page, to find a list of historic properties owned and managed by Montana. They can also look over technical reports and documents about these properties. Visitors should not miss the report titled "Montana Modernism." This gem offers information and commentary on recently identified properties in Montana (such as the Safeway Grocery in Butte) built in the two decades after World War II. Finally, visitors with a interest in preservation policy can browse through the Preservation Law section.

2012-03-09

89

Cultural Preservation Program for Alaska  

ERIC Educational Resources Information Center

In this technical report, an innovative cultural preservation program for implementation in Athabascan villages is presented. The parameters for success in implementing such a project is discussed based on a workshop with Athabascan elders.

Barbaran, Francisco Ramon

2011-01-01

90

Pylorus-Preserving Total Pancreatectomy  

Microsoft Academic Search

Background\\/Aims: Preservation of the pylorus is an accepted alternative procedure to the classical Whipple operation for pancreatic head resection but data describing its value for total pancreatectomy are sparse. Methods: A prospective analysis of 22 total pancreatectomies performed in a consecutive series of 436 pancreatic resections from 1.11.93 to 1.5.99. Results: 11 patients underwent total pancreatectomy with preservation of the

M. Wagner; K. Z’graggen; C. E. Vagianos; C. A. Redaelli; F. Holzinger; C. Sadowski; C. Kulli; H. Zimmermann; H. U. Baer; M. W. Büchler

2001-01-01

91

Identifying and Preserving Wildlife Tracks  

NSDL National Science Digital Library

This site is an article by Jon C. Boren, Extension Wildlife Specialist and Byron D. Wright, Agricultural Specialist both from the University of New Mexico entitled Identifying and Preserving Wildlife Tracks. It contains information about identifying animal tracks, including those of deer, elk, antelope, and mountain lions. Also, there is a helpful guide to preserving animal tracks by making track casts, including the procedure and materials needed. A recommended reading list is also presented to give visitors a starting point for more information.

2008-02-21

92

76 FR 74721 - Preserving the Open Internet  

Federal Register 2010, 2011, 2012, 2013

...Report No. 2936] Preserving the Open Internet AGENCY: Federal Communications Commission...broadband service to preserve and reinforce Internet freedom and openness. DATES: Oppositions...In the Matter of Preserving the Open Internet, Broadband Industry Practices,...

2011-12-01

93

Yeasts preservation: alternatives for lyophilisation.  

PubMed

The aim of the study was to compare the effect of two low-cost, low technology traditional methods for drying starter cultures with standard lyophilisation. Lyophilised yeast cultures and yeast cultures preserved in dry rice cakes and dry plant fibre strands were examined for viable cell counts during 6 months storage at 4 and 25 °C. None of the yeast cultures showed a significant loss in viable cell count during 6 months of storage at 4 °C upon lyophilisation and preservation in dry rice cakes. During storage at 25 °C in the dark, yeast cultures preserved in dry rice cakes, and lyophilised cultures of Saccharomyces cerevisiae and Issatchenkia orientalis showed no significant loss of viable cells up to 4 months of storage. Yeast cultures preserved in dry plant fibre strands had the greatest loss of viable count during the 6 months of storage at 25 °C. Preservation of yeasts cultures in dry rice cakes provided better survival during storage at 4 °C than lyophilisation. The current study demonstrated that traditional methods can be useful and effective for starter culture preservation in small-scale, low-tech applications. PMID:22806747

Nyanga, Loveness K; Nout, Martinus J R; Smid, Eddy J; Boekhout, Teun; Zwietering, Marcel H

2012-11-01

94

Big Thicket National Preserve: Trails to the Future  

E-print Network

and four rail lines; and water shortages as plans are made to raise the current dam on the Neches River by 10 feet. The nature of these problems rules out a silver bullet approach to ensure the Preserve?s sustainability. What is needed instead is a... as it is biologically diverse, representing a broad convergence of multiple ecosystems into a single geographic location (refer to Map 1). The densely packed forestry that gave Big Thicket its name served to keep Native Americans and early settlers out, escaped...

Anderson, Luke; Allen, Chris; Elrod, Leah; Forbes, Melissa; Harbin, Hannah; Stromm, Diann

2003-01-01

95

National Film Preservation Foundation: The Film Preservation Guide  

NSDL National Science Digital Library

No doubt many organizations and institutions have a canister of 16MM film lying around someplace and some diligent member of their organization might ask: "How can we preserve this item?" A very astute question, and this helpful guide from the National Film Preservation Foundation provides substantial guidance and assistance. The 121-page guide describes methods for handling, duplicating, making available, and storing film, which are practical for nonprofit and public organizations with limited resources. Visitors to this site can download all of the sections in this report, which include chapters like "Legal Context for Film Preservation" and "Understanding Film and How it Decays". The report also includes case studies, illustrations, charts, glossary, and a bibliography.

96

Leaf metallome preserved over 50 million years.  

PubMed

Large-scale Synchrotron Rapid Scanning X-ray Fluorescence (SRS-XRF) elemental mapping and X-ray absorption spectroscopy are applied here to fossil leaf material from the 50 Mya Green River Formation (USA) in order to improve our understanding of the chemistry of fossilized plant remains. SRS-XRF of fossilized animals has previously shown that bioaccumulated trace metals and sulfur compounds may be preserved in their original distributions and these elements can also act as biomarkers for specific biosynthetic pathways. Similar spatially resolved chemical data for fossilized plants is sparsely represented in the literature despite the multitude of other chemical studies performed. Here, synchrotron data from multiple specimens consistently show that fossil leaves possess chemical inventories consisting of organometallic and organosulfur compounds that: (1) map discretely within the fossils, (2) resolve fine scale biological structures, and (3) are distinct from embedding sedimentary matrices. Additionally, the chemical distributions in fossil leaves are directly comparable to those of extant leaves. This evidence strongly suggests that a significant fraction of the chemical inventory of the examined fossil leaf material is derived from the living organisms and that original bioaccumulated elements have been preserved in situ for 50 million years. Chemical information of this kind has so far been unknown for fossilized plants and could for the first time allow the metallome of extinct flora to be studied. PMID:24804302

Edwards, N P; Manning, P L; Bergmann, U; Larson, P L; van Dongen, B E; Sellers, W I; Webb, S M; Sokaras, D; Alonso-Mori, R; Ignatyev, K; Barden, H E; van Veelen, A; Anné, J; Egerton, V M; Wogelius, R A

2014-04-01

97

Preserving the legacy: Biological treatment technologies (ptl0501). (video). Audiovisual  

SciTech Connect

Aerobic, anaeorbic and facultative treatments as well as bioremediation (land farming, air sparging, bio-cell, bio-reactor and phytoremediation) are explored with the aid of animation and electron microscope imagery.

NONE

1996-12-31

98

Existential Positive Types and Preservation under Homomorphisisms  

Microsoft Academic Search

We prove the finite homomorphism preservation theorem: a first-order formula is preserved under homomorphisms on finite structures iff it is equivalent in the finite to an existential positive formula. We also strengthen the classical homomorphism preservation theorem by showing that a formula is preserved under homomorphisms on all structures iff it is equivalent to an existential positive formula of the

Benjamin Rossman

2005-01-01

99

FOOD PRESERVATION SERIES Summer Squash  

E-print Network

FOOD PRESERVATION SERIES Summer Squash RECOMMENDED VARIETIES hOW TO STORE QUICK AND EASY SERVING squash. 1 to 1 ¼ pounds one pint frozen summer squash. FOOD SAFETY TIPS Summer Squash Purchase squash not become soggy. FREEZING SUMMER SQUASH SLICES Wash and cut summer squash into 1 ½ -inch slices. Bring about

100

Raspberries Using, Storing and Preserving  

E-print Network

, Royalty and September for fresh use and jams. Select Cumberland (black) and September for freezing. Storage and food safety · Avoid choosing bruised and damaged fruit. · Wash hands before and after handling 1 pint = 1 3/4 cups How to preserve Freezing Select fully ripe, juicy berries. Sort, wash in cold

101

FOOD PRESERVATION SERIES RECOMMENDED VARIETIES  

E-print Network

½ teaspoon of ascorbic acid to each quart of syrup used. Freeze no more than 2 pounds of food per cubic footFOOD PRESERVATION SERIES RECOMMENDED VARIETIES FOOD SAFETY TIPS trim loss QUICK AND EASY SERVING varieties are excellent for canning, freezing or making jam, jellies or pies. Montmorency and North Star

102

FOOD PRESERVATION SERIES Winter Squash  

E-print Network

FOOD PRESERVATION SERIES Winter Squash RECOMMENDED VARIETIES hOW TO STORE Winter Squash Michigan, Butternut, Golden Delicious, Hubbard, Spaghetti are recommended for freezing. yield Acorn squash is round be served like pasta. FOOD SAFETY TIPS One pound 1 large acorn squash. 4 half-cup servings. 1 ½ cups mashed

103

Laparoscopic pylorus-preserving pancreatoduodenectomy  

Microsoft Academic Search

A case of chronic pancreatitis localized in the head of the pancreas with pancreas divisum was treated by laparoscopic pylorus-preserving pancreatoduodenectomy. The laparoscopic technique of resection and reconstruction with a gastrojejunostomy, hepaticojejunostomy, and pancreaticojejunostomy is described. The postoperative period was complicated by a jejunal ulcer and delayed gastric emptying necessitating a prolonged hospitalization and intravenous hyperalimentation. No fistulas occurred, a

M. Gagner; A. Pomp

1994-01-01

104

Privacy-Preserving Classifier Learning  

Microsoft Academic Search

We present an ecient protocol for the privacy-preserving, distributed learning of decision-tree classiers. Our protocol allows a user to construct a classier on a database held by a remote server with- out learning any additional information about the records held in the database. The server does not learn anything about the constructed clas- sier, not even the user's choice of

Justin Brickell; Vitaly Shmatikov

2009-01-01

105

Hybrid Food Preservation Program Improves Food Preservation and Food Safety Knowledge  

ERIC Educational Resources Information Center

The growing trend in home food preservation raises concerns about whether the resulting food products will be safe to eat. The increased public demand for food preservation information led to the development of the comprehensive food preservation program, Preserve the Taste of Summer (PTTS). PTTS is a comprehensive hybrid food preservation program…

Francis, Sarah L.

2014-01-01

106

Biological Pollutants  

MedlinePLUS

... Pollutants An Introduction to Indoor Air Quality (IAQ) Biological Pollutants Basic Information on Pollutants and Sources of ... collects may accumulate biological contaminants. Health Effects From Biological Contaminants Some biological contaminants trigger allergic reactions, including ...

107

Economic impact and preservation: a case study of the Big Thicket National Preserve in east Texas  

E-print Network

The Big Thicket National Preserve provides an excellent backdrop to test whether there is a correlation between economic impact and preservation. Conflicts over resources and land use blocked the preservation of the park for over forty years...

Powis, Jennifer

2013-02-22

108

Update on Dark Sky Preservation  

Microsoft Academic Search

The efforts to protect dark skies for astronomy and for the public are accelerating. An increasing number of cities and states are considering and enacting outdoor lighting control ordinances. Examples of such lighting codes and a model code are available from the International Dark-Sky Association's Web page, at www.darksky.org. There will be a major meeting on Preserving the Astronomical Environment,

D. L. Crawford

1998-01-01

109

Digital Preservation: Theory Approaching Practice  

E-print Network

and Planning ? Assistant to the Associate Vice Chancellor for Information Resources, KU Medical Center ? Facilitators University of KansasCNI, Portland, OR, Dec. 7, 2004 Overview ? Digital preservation is the ongoing process of managing data for continuing... Special Focus on the Upstream End of the Cycle ?Appraisal ? Choice of file format ? Choice of storage location / repository ? Metadata Consultation Education University of KansasCNI, Portland, OR, Dec. 7, 2004 Infrastructure & Architecture ? Digital...

Fyffe, Richard; Ludwig, Deborah; Warner, Beth Forrest

2004-12-07

110

Phase-preserved optical elevator  

PubMed Central

The unique superiority of transformation optics devices designed from coordinate transformation is their capability of recovering both ray trajectory and optical path length in light manipulation. However, very few experiments have been done so far to verify this dual-recovery property from viewpoints of both ray trajectory and optical path length simultaneously. The experimental difficulties arise from the fact that most previous optical transformation optics devices only work at the nano-scale; the lack of intercomparison between data from both optical path length and ray trajectory measurement in these experiments obscured the fact that the ray path was subject to a subwavelength lateral shift that was otherwise not easily perceivable and, instead, was pointed out theoretically [B. Zhang et al. Phys. Rev. Lett. 104, 233903, (2010)]. Here, we use a simple macroscopic transformation optics device of phase-preserved optical elevator, which is a typical birefringent optical phenomenon that can virtually lift an optical image by a macroscopic distance, to demonstrate decisively the unique optical path length preservation property of transformation optics. The recovery of ray trajectory is first determined with no lateral shift in the reflected ray. The phase preservation is then verified with incoherent white-light interferometry without ambiguity and phase unwrapping. PMID:23546046

Luo, Yuan; Zhang, Baile; Han, Tiancheng; Chen, Zhi; Duan, Yubo; Chu, Chia-Wei; Barbastathis, George; Qiu, Cheng Wei

2013-01-01

111

Privacy Preserving Nearest Neighbor Search  

NASA Astrophysics Data System (ADS)

Data mining is frequently obstructed by privacy concerns. In many cases data is distributed, and bringing the data together in one place for analysis is not possible due to privacy laws (e.g. HIPAA) or policies. Privacy preserving data mining techniques have been developed to address this issue by providing mechanisms to mine the data while giving certain privacy guarantees. In this chapter we address the issue of privacy preserving nearest neighbor search, which forms the kernel of many data mining applications. To this end, we present a novel algorithm based on secure multiparty computation primitives to compute the nearest neighbors of records in horizontally distributed data. We show how this algorithm can be used in three important data mining algorithms, namely LOF outlier detection, SNN clustering, and kNN classification. We prove the security of these algorithms under the semi-honest adversarial model, and describe methods that can be used to optimize their performance. Keywords: Privacy Preserving Data Mining, Nearest Neighbor Search, Outlier Detection, Clustering, Classification, Secure Multiparty Computation

Shaneck, Mark; Kim, Yongdae; Kumar, Vipin

112

76 FR 60754 - Preserving the Open Internet  

Federal Register 2010, 2011, 2012, 2013

...FCC 10-201] Preserving the Open Internet AGENCY: Federal Communications Commission...establishing rules to preserve the open Internet. Inadvertently the wrong paragraph was...complaints alleging violations of the open Internet rules. Federal Communications...

2011-09-30

113

SYNERGISTIC WOOD PRESERVATIVES FOR REPLACEMENT OF CCA  

EPA Science Inventory

The objective of this project was to evaluate the potential synergistic combinations of environmentally-safe biocides as wood preservatives. These wood preservatives could be potential replacements for the heavy-metal based CCA. Didecyldimethylammonium chloride [DDAC] was...

114

7 CFR 782.14 - Identity preservation.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 false Identity preservation. 782.14 Section 782.14 Agriculture Regulations of the Department of...Implementation of the End-Use Certificate Program § 782.14 Identity preservation. (a) The...

2010-01-01

115

Practice and prospects of microbial preservation.  

PubMed

A growing interest in culturable diversity has required microbiologists to think seriously about microbial preservation. In addition to the isolation and cultivation of pure strains, adequate preservation without changes in morphological, physiological and genetic traits is necessary. This review consolidates different methods used for preservation of microorganisms with an emphasis on cryopreservation and lyophilization. The critical points of cryopreservation and lyophilization are highlighted to explain how several extrinsic and intrinsic factors affect the cell survival and recovery during the process of long-term preservation. Factors responsible for alteration in genotypic and phenotypic integrity of cultures during preservation and methods used for their evaluation have been incorporated. We emphasize the importance of depositories and highlight their current funding status. Future areas for preservation research, including cell dormancy, ecosystem and community level preservation and the effects of the viable but non-culturable state on post-preservation recovery of the cells are also discussed. PMID:23083094

Prakash, Om; Nimonkar, Yogesh; Shouche, Yogesh S

2013-02-01

116

Privacy preserving mining of association rules  

Microsoft Academic Search

We present a framework for mining association rules from transactions consisting of categorical items where the data has been randomized to preserve privacy of individual transactions. While it is feasible to recover association rules and preserve privacy using a straightforward \\

Alexandre V. Evfimievski; Ramakrishnan Srikant; Rakesh Agrawal; Johannes Gehrke

2002-01-01

117

Evaluating Hydrology Preservation of Simplified Terrain Representations  

E-print Network

Evaluating Hydrology Preservation of Simplified Terrain Representations Jonathan Muckella , Marcus network. A quan- titative measurement of how accurately a drainage network captures the hydrology to preserve the important hydrology features. This method and other simplification schemes are then evaluated

Franklin, W. Randolph

118

Fertility Preservation Options After Gonadotoxic Chemotherapy  

PubMed Central

Chemotherapy has the potential to deplete and destroy a woman’s reproductive potential. Although many oncologists are referring women for fertility preservation before chemotherapy, in many cases there is limited time for fertility preservation. This review provides an overview of the impact of cancer and chemotherapy on the ovarian reserve, a summary of methods of fertility preservation prior to chemotherapy, and current knowledge of fertility preservation techniques after gonadotoxic chemotherapy. PMID:24453520

Hyman, Jordana Hadassah; Tulandi, Togas

2013-01-01

119

Privacy-Preserving Linear Fisher Discriminant Analysis  

Microsoft Academic Search

Privacy-preserving data mining enables two or more parties to collaboratively perform data mining while preserving the data\\u000a privacy of the participating parties. So far, various data mining and machine learning algorithms have been enhanced to incorporate\\u000a privacy preservation. In this paper, we propose privacy-preserving solutions for Fisher Discriminant Analysis (FDA) over horizontally\\u000a and vertically partitioned data. FDA is one of

Shuguo Han; Wee Keong Ng

2008-01-01

120

Constraints on the Preservation of Ferriferous Microfossils  

Microsoft Academic Search

ABSTRACT:The taphonomy of ancient microbial communities is understood via rare windows of microbes that are successfully entombed and preserved in the fossil record. Laboratory investigations using live bacterial cultures, combined with observations on microfossils preserved in ferriferous oolitic beds formed around 161 million years ago, were used to constrain conditions that are conducive to preservation by mineralization. Lab experiments confirmed

Susan Glasauer; Al Mattes; Andreas Gehring

2012-01-01

121

Preserving Library Materials in the South Pacific.  

ERIC Educational Resources Information Center

Discusses problems of preservation and conservation of library materials in the South Pacific, including environmental factors, insect and animal pests, and mishandling. Describes the situation in national, public, and academic libraries in the region; factors in planning library buildings to promote preservation; and preservation efforts at the…

Kivia, Ivarature

1994-01-01

122

Suggested References for Home Food Preservation  

E-print Network

, Alltrista) http://www.homecanning.com/ Kraft Foods, Inc. (makers of SureJell) httpSuggested References for Home Food Preservation USDA and Cooperative Extension So Easy to Preserve Center for Home Food Preservation: http://homefoodpreservation.com USDA Complete Guide to Home Canning

123

Local control of area-preserving maps  

E-print Network

We present a method of control of chaos in area-preserving maps. This method gives an explicit expression of a control term which is added to a given area-preserving map. The resulting controlled map which is a small and suitable modification of the original map, is again area-preserving and has an invariant curve whose equation is explicitly known.

Cristel Chandre; Michel Vittot; Guido Ciraolo

2008-09-01

124

Preservation Assessment and Disaster Response Plan.  

ERIC Educational Resources Information Center

This paper addresses the preservation needs unique to small libraries, where the majority of special collections exist. A preservation survey of the Herrick Memorial Library (Wellington, OH) was conducted to ascertain the condition of its 45,000 holdings and develop a practical low-cost disaster plan. Using accepted preservation survey criteria,…

Wisdom, Mark

125

Preservation of sweet sorghum biomass  

SciTech Connect

Sweet sorghum stalks (42% sugar, dry basis (d.b.)) and bagasse (10% sugar, d.b.) from a cane mill were stored to preserve sugar. Bagasse and stalks were stored outdoors in sealed containers (anaerobic conditions). Treatments included using carbon dioxide or sulfur dioxide atmospheres or surface spraying with propionic acid or aqueous ammonia. Stalks were also stored outdoors under aerobic conditions. Treatments included drying the stalks or spraying with propionic acid. After 200 days, propionic acid (anaerobic) and SO/sub 2/-treated stalks had 34% and 19% of the original sugar remaining, respectively. No other samples had more than 3% of the original sugar remaining. 28 references, 6 tables.

Jasberg, B.K.; Montgomery, R.R.; Anderson, R.A.

1983-01-01

126

Biological Technicians  

MedlinePLUS

... MAP | EN ESPAÑOL Life, Physical, and Social Science > Biological Technicians PRINTER-FRIENDLY EN ESPAÑOL Summary What They ... of workers and occupations. What They Do -> What Biological Technicians Do About this section Biological technicians prepare ...

127

Biological Threats  

MedlinePLUS

... for Disease Control and Prevention . Before Before a Biological Threat Unlike an explosion, a biological attack may ... will not filter chemical agents During During a Biological Threat The first evidence of an attack may ...

128

Preservation of nanostructured lipid carriers (NLC).  

PubMed

Due to their positive features (e.g., increased penetration of actives, re-enforcement of the lipid barrier and increase in skin hydration), nanostructured lipid carriers (NLC) are used in many dermal formulations. These formulations require preservation, and preservatives can impair the physical stability of disperse systems. Therefore, in this study, the influence of preservatives on the physical stability of Q10-loaded NLC was investigated using 11 different preservative mixtures. Whereas for nanosuspensions, only a limited number of preservatives are known from the literature not affecting their physical stability, a surprisingly high number of seven preservatives could be identified to be suitable for the preservation of NLC dispersions. For Q10-loaded NLC, Hydrolite 5 proved to be the best preservative, as it was found surprisingly to stabilize the NLC dispersion. Based on the data, a preservative classification system is suggested and a mechanistic model describing six key parameters affecting the physical stability of NLC could be developed. As most suitable characterization method to screen for suitable preservatives, light microscopy was identified. By being a simple, fast and cost efficient method, even extensive preservative screening studies can be performed very efficiently. PMID:20452422

Obeidat, Wasfy M; Schwabe, Kay; Müller, Rainer H; Keck, Cornelia M

2010-09-01

129

[Organ preservation surgery in pharyngolaryngeal cancer].  

PubMed

Organ preservation surgery is a reasonable name for these types of techniques because it accurately describes the postoperative outcome, which is preservation of the quintessential laryngeal functions: swallowing, respiration without a permanent stoma and speech. In response to the common use of total laryngectomy, the non-surgical approaches have often been referred to as organ preservation strategies. In many institutions, it appears that there are organ preservation strategies and then there is surgery. In our opinion there are both non surgical organ preservation strategies and surgical organ preservation strategies. The key is that in both approaches the goal is to spare the functions of the larynx. In both, the work-ups are very important to analyse 3-dimensional extent of the lesion by nasofibroscopy (laryngeal mobilities), endoscopy and radiology. Organ preservation surgical approach allowed to save the use of radiotherapy for the management of various metachronous second primary tumours. PMID:17137252

Hans, Stéphane; Brasnu, Daniel; Chevalier, Dominique

2006-10-15

130

Chemical stability of preserved oligotrophic water samples  

USGS Publications Warehouse

Tests were conducted to determine whether changes that may occur in the chemical characteristics of stored oligotrophic waters collected on 15 sites in northeastern Minnesota were affected by chloroforming. Chloroform was added on site to one of each pair of samples to stabilize the organic content of the water by preventing biological decomposition. The samples were subsequently stored at 25 deg.C, and pH and specific conductivity were measured at intervals for a period of 13 months at which time nine additional chemical parameters (total dissolved solids, total alkalinity, chloride, sulfate, silica, calcium, magnesium, sodium and potassium) were measured.pH increased and specific conductivity decreased. Average changes occurring in time from the original levels were not influenced by treatment, and first differed significantly (P0.05). Sodium and potassium levels were too low to provide meaningful comparisons. It was concluded that chloroform may be advantageous in preserving oligothrophic waters with respect to total dissolved solids, sulfate and calcium.

Adomaitis, V.A.; Shoesmith, J.A.; Swanson, G.A.

1973-01-01

131

Genographic's Legacy: Preservation and Projections  

NSDL National Science Digital Library

In this lesson, the fourth in a set of lessons exploring migration, genetic markers, markers in context, and the Genographic Project (a five-year study of human origins and migration based on genetic markers), students will learn what the Genographic Project will leave for future generations, both in cultural preservation and knowledge of our common ancestry and make educated projections about our common future. They will examine why the timing of the project is critical. Students will consider ways in which the project is impacted by scientific and technological advancements, which make such a study feasible for the first time in human history. They will consider the impact of increasing globalization, which makes collecting and interpreting the project data more challenging. Students will assume the role of a researcher in the project tasked with documenting the contributions indigenous groups have made to the story of the human journey. They will understand why indigenous communities play such a crucial role in unlocking the secrets of our common ancestry, examine how those communities are being threatened, make projections about future challenges to their ways of life, and consider how research such as the Genograhic Project can play a role in preserving them.

132

Fertility Preservation in Gynecological Cancers  

PubMed Central

For cancers of reproductive system in women, fertility preservation is complex. Fertility is also affected by therapies, however prevention is possible. Radiotherapy affects gonads, uterus, and subsequent pregnancy outcomes in all ages. However, degree and damage depend on dose, irradiation field, and age at the time of exposure. Ovarian transposition is considered if ovarian involvement is unlikely. Gonadotoxic effects of chemotherapy are related to agent’s type, cumulative doses, age, and ovarian reserve. Some agents are highly toxic. Rendering follicular development quiescent by suppression of gonadotropins does reduce the ovarian damage. Simple or radical trachelectomy can be used in early cervical cancer. Fertility saving surgery is possible only in early stage low grade epithelial cancers of the ovary, however, in germ cell tumors even in advanced stages it may be possible to preserve fertility. There are no standard recommendations for endometrial cancer. Embryo, oocyte, and ovarian tissue cryopreservation are possible. The human embryo is very resistant to damage. In view of these possibilities, it is advocated that attention to long term health and quality of life in gonadotoxic therapy must be incorporated into plans as early as possible. PMID:24453519

Chhabra, Shakuntala; Kutchi, Imran

2013-01-01

133

Context-preserving visual links.  

PubMed

Evaluating, comparing, and interpreting related pieces of information are tasks that are commonly performed during visual data analysis and in many kinds of information-intensive work. Synchronized visual highlighting of related elements is a well-known technique used to assist this task. An alternative approach, which is more invasive but also more expressive is visual linking in which line connections are rendered between related elements. In this work, we present context-preserving visual links as a new method for generating visual links. The method specifically aims to fulfill the following two goals: first, visual links should minimize the occlusion of important information; second, links should visually stand out from surrounding information by minimizing visual interference. We employ an image-based analysis of visual saliency to determine the important regions in the original representation. A consequence of the image-based approach is that our technique is application-independent and can be employed in a large number of visual data analysis scenarios in which the underlying content cannot or should not be altered. We conducted a controlled experiment that indicates that users can find linked elements in complex visualizations more quickly and with greater subjective satisfaction than in complex visualizations in which plain highlighting is used. Context-preserving visual links were perceived as visually more attractive than traditional visual links that do not account for the context information. PMID:22034344

Steinberger, Markus; Waldner, Manuela; Streit, Marc; Lex, Alexander; Schmalstieg, Dieter

2011-12-01

134

Molecular preservation of the pigment melanin in fossil melanosomes.  

PubMed

Fossil feathers, hairs and eyes are regularly preserved as carbonized traces comprised of masses of micrometre-sized bodies that are spherical, oblate or elongate in shape. For a long time, these minute structures were regarded as the remains of biofilms of keratinophilic bacteria, but recently they have been reinterpreted as melanosomes; that is, colour-bearing organelles. Resolving this fundamental difference in interpretation is crucial: if endogenous then the fossil microbodies would represent a significant advancement in the fields of palaeontology and evolutionary biology given, for example, the possibility to reconstruct integumentary colours and plumage colour patterns. It has previously been shown that certain trace elements occur in fossils as organometallic compounds, and hence may be used as biomarkers for melanin pigments. Here we expand this knowledge by demonstrating the presence of molecularly preserved melanin in intimate association with melanosome-like microbodies isolated from an argentinoid fish eye from the early Eocene of Denmark. PMID:22569368

Lindgren, Johan; Uvdal, Per; Sjövall, Peter; Nilsson, Dan E; Engdahl, Anders; Schultz, Bo Pagh; Thiel, Volker

2012-01-01

135

Is My Network Module Preserved and Reproducible?  

PubMed Central

In many applications, one is interested in determining which of the properties of a network module change across conditions. For example, to validate the existence of a module, it is desirable to show that it is reproducible (or preserved) in an independent test network. Here we study several types of network preservation statistics that do not require a module assignment in the test network. We distinguish network preservation statistics by the type of the underlying network. Some preservation statistics are defined for a general network (defined by an adjacency matrix) while others are only defined for a correlation network (constructed on the basis of pairwise correlations between numeric variables). Our applications show that the correlation structure facilitates the definition of particularly powerful module preservation statistics. We illustrate that evaluating module preservation is in general different from evaluating cluster preservation. We find that it is advantageous to aggregate multiple preservation statistics into summary preservation statistics. We illustrate the use of these methods in six gene co-expression network applications including 1) preservation of cholesterol biosynthesis pathway in mouse tissues, 2) comparison of human and chimpanzee brain networks, 3) preservation of selected KEGG pathways between human and chimpanzee brain networks, 4) sex differences in human cortical networks, 5) sex differences in mouse liver networks. While we find no evidence for sex specific modules in human cortical networks, we find that several human cortical modules are less preserved in chimpanzees. In particular, apoptosis genes are differentially co-expressed between humans and chimpanzees. Our simulation studies and applications show that module preservation statistics are useful for studying differences between the modular structure of networks. Data, R software and accompanying tutorials can be downloaded from the following webpage: http://www.genetics.ucla.edu/labs/horvath/CoexpressionNetwork/ModulePreservation. PMID:21283776

Langfelder, Peter; Luo, Rui; Oldham, Michael C.; Horvath, Steve

2011-01-01

136

DNA damage in preserved specimens and tissue samples: a molecular assessment  

PubMed Central

The extraction of genetic information from preserved tissue samples or museum specimens is a fundamental component of many fields of research, including the Barcode of Life initiative, forensic investigations, biological studies using scat sample analysis, and cancer research utilizing formaldehyde-fixed, paraffin-embedded tissue. Efforts to obtain genetic information from these sources are often hampered by an inability to amplify the desired DNA as a consequence of DNA damage. Previous studies have described techniques for improved DNA extraction from such samples or focused on the effect of damaging agents – such as light, oxygen or formaldehyde – on free nucleotides. We present ongoing work to characterize lesions in DNA samples extracted from preserved specimens. The extracted DNA is digested to single nucleosides with a combination of DNase I, Snake Venom Phosphodiesterase, and Antarctic Phosphatase and then analyzed by HPLC-ESI-TOF-MS. We present data for moth specimens that were preserved dried and pinned with no additional preservative and for frog tissue samples that were preserved in either ethanol, or formaldehyde, or fixed in formaldehyde and then preserved in ethanol. These preservation methods represent the most common methods of preserving animal specimens in museum collections. We observe changes in the nucleoside content of these samples over time, especially a loss of deoxyguanosine. We characterize the fragmentation state of the DNA and aim to identify abundant nucleoside lesions. Finally, simple models are introduced to describe the DNA fragmentation based on nicks and double-strand breaks. PMID:18947416

Zimmermann, Juergen; Hajibabaei, Mehrdad; Blackburn, David C; Hanken, James; Cantin, Elizabeth; Posfai, Janos; Evans, Thomas C

2008-01-01

137

City of Seattle Historic Preservation  

NSDL National Science Digital Library

In 2000, the city of Seattle began an ambitious project to survey and inventory historic resources across the entire municipality. The last such project took place in 1979 and taken together, these efforts offer excellent documentation of the built environment. The database here includes over 5,000 properties and visitors can search through the entire collection by address, parcel number, property attribute (such as date of construction), and a number of other fields. The Context Statements area is a great way to learn about the methodologies and basic findings utilized to cover each neighborhood. Historic preservation specialists will find that the statements are extremely detailed in terms of resources used to create such a narrative profile. The site also includes a Glossary of Terms that covers "acquisition type" to "year of construction."

138

Preservation Management of Digital Materials  

NSDL National Science Digital Library

The World Wide Web gives us an unprecedented opportunity to provide people around the globe with access to significant historical and cultural works. However, the Web, by its very nature, requires those works to be in some electronically transmittable form before they can be made available, and most historical documents, by their very nature, are in a form well-removed from the computerized world of today. So how can this gap be bridged? And once a bridge is built, how can we be assured that it will stand over the decades and centuries to come? Preservation Management of Digital Materials, published by the UK's Joint Information Systems Committee (JISC), provides in-depth coverage of the procedures and issues encountered in the course of creating and storing digital documents. This publication provides easily-accessible information that should be of increasing interest to anyone involved with digital publication and archiving of existing works.

139

The scientific bases for preservation of the Mariana crow  

USGS Publications Warehouse

The Panel recently released the report and recommendations resulting from its work over the last six months. Although primarily focused on the Mariana Crow, the report highlights that this is a matter potentially far more serious than the preservation of the crow on Guam and Rota. The report includes major sections dealing with the need to intensify research and control activities on the Brown Tree Snake both on Guam and in all appropriate areas to which the snake could spread if uncontained and on the population biology and behavior of the Mariana Crow on Guam and Rota.

National Research Council, Committee on the Scientific Bases for the Preservation of the Mariana Crow; Duckworth, W.D.; Beissinger, S.R.; Derrickson, S.R.; Fritts, T.H.; Haig, S.M.; James, F.C.; Marsluff, J.M.; Rideout, B.A.

1997-01-01

140

Biology Online  

NSDL National Science Digital Library

Biology Online is a community-run web site that provides access to resources on many aspects of biological and life sciences. The site includes a discussion board with forums on cell biology, molecular biology, evolution, bioinformatics, and many other topics. The Wiki dictionary features user-editable content and links to articles on a wide variety of topics in biology. There is also a book catalog with information on biology-related books, including author and content descriptions, product details, and customer reviews; and a directory of links to other websites with related content in the life and Earth sciences.

141

Preservation Planning for Digital Information: Final Report of the HVC2 Digital Preservation Task Force  

E-print Network

Digital preservation is the ongoing process of managing data for continuing access and use. The University of Kansas Digital Preservation Task Force was charged in October 2003 to explore the implications of a University ...

Fyffe, Richard; Ludwig, Deborah; Roach, Mary; Schulte, Becky; Warner, Beth Forrest

2004-11-11

142

Original Paper An assessment of the long-term preservation of the  

E-print Network

of Biology, University College London, Darwin Building, Gower Street, London WC1E 6BT, UK 3 First Medical Abstract To examine the potential for DNA recovery from spirit-preserved medical material, a set of specimens from the Hunterian Collection of the Royal College of Surgeons was investigated. Using a range

143

Aerobic Preservation of Organs Using a New Perflubron\\/Lecithin Emulsion Stabilized by Molecular Dowels  

Microsoft Academic Search

The purpose of the study reported here was to explore a new strategy for the aerobic preservation of transplants using stable concentrated fluorocarbon emulsions as an oxygen delivery system. Fluorocarbons (FCs) are synthetic molecules, chemically and biologically inert, with a high oxygen-dissolving capacity. As they do not mix with water, it is necessary to emulsify them for intra-vascular use. Perfluorooctyl

Eric J. Voiglio; Leila Zarif; Fabien C. Gorry; Marie-Pierre Krafft; Jacqueline Margonari; Xavier Martin; Jean Riess; Jean Michel Dubernard

1996-01-01

144

GUIDES TO POLLUTION PREVENTION: WOOD PRESERVING INDUSTRY  

EPA Science Inventory

This guide provides an overview of the wood preserving industry and presents options for minimizing waste generation through source,reduction and recycling. reatment with both oilborne and waterborne preservatives is discussed in this guide. owever, because in the United States, ...

145

Building a New Historic Preservation Trades Program  

ERIC Educational Resources Information Center

This article describes the experiences of the program coordinator of a new two-year preservation trades program at Harford Community College in Bel Air, Maryland. The two-year associate in applied sciences degree offered at Harford Community College (HCC) is a Technical Professional Studies program in Building Preservation and Restoration (BPR).…

Deeg, Rhonda L.

2005-01-01

146

Whale Preservation. Grades Five to Nine.  

ERIC Educational Resources Information Center

Dedicated to the conservation and preservation of whales, dolphins, and porpoises through public education, this instructional unit for grades 5-9 provides current (1993) facts, lesson plans, activities, and conservation and preservation techniques. Interdisciplinary activities involve students in debates, critical thinking, research, and…

Racicot, Darlene

147

Boric Acid Preservation of Urine Samples  

PubMed Central

Comparison of the results of bacteriological culture and microscopic examination of urine samples transported over a distance by the dip-inoculum transport medium, ice-box, and boric acid preservation with “natural” urine specimens showed that the last, in a final concentration of 1·8%, gives satisfactory preservation. PMID:5768462

Porter, I. A.; Brodie, J.

1969-01-01

148

Boric Acid Preservation of Urine Samples  

Microsoft Academic Search

Comparison of the results of bacteriological culture and microscopic examination of urine samples transported over a distance by the dip-inoculum transport medium, ice-box, and boric acid preservation with “natural” urine specimens showed that the last, in a final concentration of 1·8%, gives satisfactory preservation.

I. A. Porter; J. Brodie

1969-01-01

149

ORIGINAL PAPER Peer Disagreement and Independence Preservation  

E-print Network

2009 / Accepted: 22 September 2010 / Published online: 20 November 2010 Ã? Springer Science+Business reasonable restrictions on pooling, however, there is a natural method of preserving the independence of any that such averaging may fail to preserve instances of independence common to P1 and P2. However, Genest and Wagner

Wagner, Carl

150

Design Preserving Garment Transfer Remi Brouet13  

E-print Network

and fashion designers. CR Categories: I.3.7 [Computer Graphics]: Three-Dimensional Graphics and RealismDesign Preserving Garment Transfer Remi Brouet13 Alla Sheffer2 Laurence Boissieux3 Marie-Paule Cani13 1 Grenoble University 2 University of British Columbia 3 INRIA Figure 1: Design preserving garment

151

Protecting Rural Amenities Through Farmland Preservation Programs  

Microsoft Academic Search

We investigate what farmland preservation programs reveal about the importance of protecting different rural amenities. An extensive content analysis of the enabling legislation of various farmland protection programs suggests wide variation exists in the protection of amenities. An analysis of 27 individual Purchase of Development Rights (PDR) programs' selection criteria suggests these programs favor preserving amenities that are jointly provided

Cynthia J. Nickerson; Daniel Hellerstein

2003-01-01

152

Wilderness Preservation Act, U.S.A.  

NSDL National Science Digital Library

This online article, from "The Biodiversity Crisis: Losing What Counts", takes a look at the Wilderness Preservation Act. It covers the criteria for inclusion in the National Wilderness Preservation System, the protections that "wilderness status" offers and the ecological importance of wilderness areas.

153

Home Food Preservation Training for Extension Educators  

ERIC Educational Resources Information Center

During times of economic downturn, there has been an increased interest in home food preservation. As the primary resource for current research-based recommendations, a team of Extension Family and Consumer Sciences educators with specialization in food safety and food preservation responded to this demand by developing a standardized food…

Goard, Linnette Mizer; Hill, Melinda; Shumaker, Katharine; Warrix, Marisa

2013-01-01

154

Preservation Film: Platform for Digital Access Systems.  

ERIC Educational Resources Information Center

Preservation efforts for an increasingly digitally oriented future have turned to advanced and improved methods of preservation on microfilm, which has a life expectancy of more than 500 years when properly prepared, stored, and managed, and can support a wide range of digital access systems. Computer controlled cameras can provide significantly…

Jones, C. Lee

155

Digital Preservation and Metadata: History, Theory, Practice.  

ERIC Educational Resources Information Center

This book addresses critical issues of digital preservation, providing guidelines for protecting resources from dealing with obsolescence, to responsibilities, methods of preservation, cost, and metadata formats. It also shows numerous national and international institutions that provide frameworks for digital libraries and archives. The first…

Lazinger, Susan S.

156

WOOD PRESERVING INDUSTRY MULTIMEDIA EMISSION INVENTORY  

EPA Science Inventory

Restriction of the discharge of wastewater generated during the preservation of wood has resulted in the increased use of evaporation techniques by the wood preserving industry. This report discusses emissions that may occur during evaporation and projects the pollutant burden on...

157

Organic Acids and Meat Preservation: A Review  

Microsoft Academic Search

Despite the application of various preservation methods, many problems are still encountered as a result of food spoilage and food poisoning. There is increasing demand for foods produced with milder treatments, and the movement towards more natural and even certified organic foods has been the fastest growing sector of the food industry over the last decade. The interest in bio-preservation

Maria M. Theron; Jan F. R. Lues

2007-01-01

158

Is My Network Module Preserved and Reproducible?  

Microsoft Academic Search

In many applications, one is interested in determining which of the properties of a network module change across conditions. For example, to validate the existence of a module, it is desirable to show that it is reproducible (or preserved) in an independent test network. Here we study several types of network preservation statistics that do not require a module assignment

Peter Langfelder; Rui Luo; Michael C. Oldham; Steve Horvath; Philip E. Bourne

2011-01-01

159

Privacy-Preserving Backpropagation Neural Network Learning  

Microsoft Academic Search

With the development of distributed computing environment , many learning problems now have to deal with distributed input data. To enhance cooperations in learning, it is important to address the privacy concern of each data holder by extending the privacy preservation notion to original learning algorithms. In this paper, we focus on preserving the privacy in an important learning model,

Tingting Chen; Sheng Zhong

2009-01-01

160

A system for consistency preserving belief change  

E-print Network

present a dynamic doxastic logic which formalizes belief change for rational agents. It is basedA system for consistency preserving belief change David Steiner Version of May 2006 Abstract We on the multi-agent modal logic KD45n, and therefore preserves the consistency of belief. The actions can

Sola, Rolf Haenni

161

Economic Growth, Ecological Economics, and Wilderness Preservation  

Microsoft Academic Search

Economic growth is a perennial national goal. Per- petual economic growth and wilderness preservation are mutually exclusive. Wilderness scholarship has not addressed this conflict. The economics profession is unlikely to contribute to resolution, because the neoclassical paradigm holds that there is no limit to economic growth. A corollary of the paradigm is that wilderness can be preserved in a perpetually

Brian Czech

2000-01-01

162

Preservation of Kefir Grains, a Comparative Study  

Microsoft Academic Search

The microflora of kefir grains of household origin was isolated and identified. At least two lactococci, two lactobacilli, two yeast and one mould were detected.Different methods for kefir grain preservation were studied. Metabolic activity of grains preserved frozen at ?20 °C and ?80 °C and grains stored at 4 °C was evaluated.Grains stored at ?20 °C and ?80 °C maintained

G. L. Garrote; A. G. Abraham; G. L. De Antoni

1997-01-01

163

Biological Filters.  

ERIC Educational Resources Information Center

Presents the 1978 literature review of wastewater treatment. The review is concerned with biological filters, and it covers: (1) trickling filters; (2) rotating biological contractors; and (3) miscellaneous reactors. A list of 14 references is also presented. (HM)

Klemetson, S. L.

1978-01-01

164

Biological Agents  

MedlinePLUS

... Statistics Training Publications Newsroom Small Business Anti-Retaliation Biological Agents Safety and Health Topics A-Z Index What's New Biological agents include bacteria, viruses, fungi, other microorganisms and ...

165

Checklist to Host a Food Preservation Workshop Establish your Food Preservation Workshop Committee.  

E-print Network

Checklist to Host a Food Preservation Workshop Establish your Food Preservation Workshop Committee or school with kitchen facilities for demonstration and food preparation). Consider also number of possible type of preservation? ie. water bath, pressure canning, freezing, dehydration. Product(s): jelly, jam

166

Preservation in the Age of Google: Digitization, Digital Preservation, and Dilemmas  

ERIC Educational Resources Information Center

The cultural heritage preservation community now functions largely within the environment of digital technologies. This article begins by juxtaposing definitions of the terms "digitization for preservation" and "digital preservation" within a sociotechnical environment for which Google serves as a relevant metaphor. It then reviews two reports…

Conway, Paul

2010-01-01

167

Monitoring Survival and Preservation of Recent Cyanobacterial Mats  

NASA Astrophysics Data System (ADS)

Through geobiological evolution cyanobacterial mats have played a fundamental role through the development of early microbial carbonate ecosystems and through the sustainment of major biogeochemical cycling in the biosphere; nonetheless their sedimentary record is relatively modest in comparison with their biological impact; this apparent under-representation in the fossil record may be due to their intrinsic poor preservation potential but also to our inability to recognize some subtle microbial signatures. Modern studies on cyanobacterial mats involve high-tech molecular approaches to identify, analyze and even quantify the genetic diversity of ancient and modern microbial mats, yet the physical changes of mats, their survival and preservation potential, remain almost unknown and experimentally poorly explored. If we are going to succeed in the astrobiological quest for traces of life we should develop integrated methods and diagnostic features to address biosignatures at both, the phenotypic and genotypic levels when possible. The correct recognition and interpretation of biosignatures in this emerging field needs, aside these fine molecular tools, plain experimental approaches to test microbial resistance, survival and preservation potential of microbial mats after exposure to diagenetic changes. In this work we study some effects on fresh slices of cyanobacterial mats and cultures of specific external simulated agents that normally occur during diagenesis such as dehydratation, heat, abrasion or pressure among others. Samples from different cyanobacterial communities associated to carbonates collected from different rivers and falls around Mexico were subjected to same lab procedures. Physical and textural changes were monitored through microscopic analysis where cell integrity and mat cohesiveness were analyzed before and after treatment. Preliminary results show that mats enriched in halite and clay sediments were preferentially preserved; however those mats subjected to a rapid dehydration technique retained their original textural characteristics but their overall integrity was lost. Simple and direct observations like these help to get a better idea as to what to expect as biosignatures according to a specific environment, bridging the gap between the observer and the different types and scales of evidences.

Chacon, Elizabeth; Negron-Mendoza, Alicia; Camargo, Claudia

2010-05-01

168

Introductory Biology  

NSDL National Science Digital Library

This lovely offering from the MIT OpenCourseWare project takes interested parties through the world of biology via course readings, discussion questions, assignments, and exams. The topics cover genetics, cell biology, molecular biology, developmental biology, and evolution. The Study Terms section is quite useful, as it covers a host of useful terms from cell signaling, immunology, cancer biology, and genetics. Moving on, the recitations are worth a look as they offer lecture notes in a succinct and learned fashion. It's worth noting that visitors can download each set of activities separately or they can also use the Download Course Materials area to download everything at once.

2013-01-01

169

THE UW SOLUTION FOR CANINE KIDNEY PRESERVATION  

PubMed Central

The preservation effects of UW solution on renal hemodynamics and microvascular systems were studied in canine kidney autografts. In 72-hr UW-preserved kidneys, the microvessels of both cortex and medulla were completely visualized with silicon rubber compound 1 hr after reperfusion. Histology also showed extremely well-preserved arterioglomerular and tubular systems. These results were correlated with good renal blood flow, prompt recovery of posttransplant graft function, and 100% two-week survival of dogs. In contrast, kidneys preserved for 72 hr with Euro-Collins solution showed necrotic and obstructive changes of the microvasculature and deterioration of renal hemodynamics. In 120-hr UW-preserved kidneys, the microcirculation of the medullary region became poor after re-flow when there was fairly intact perfusion of the cortical region, indicating an ischemia-related intrarenal blood flow maldistribution. The 120-hr kidneys subsequently failed in spite of having a good blood flow and morphologically well-maintained microvasculature after reperfusion. These data demonstrated that much, but not all, of the beneficial effect of UW solution in kidney preservation might be attributed to its remarkable protection of renal microvasculature. Correction of intrarenal blood maldistribution caused by a discrepancy in tolerance to ischemia of the vascular and tubular systems might be important in successfully preserving the kidney for 120 hr. PMID:2595778

Ueda, Yuji; Todo, Satoru; Imventarza, Oscar; Furukawa, Hiroyoki; Oks, Alejandra; Wu, You Min; Oguma, Shiro; Starzl, Thomas E.

2010-01-01

170

Preservation and transplantation of porcine testis tissue  

PubMed Central

Grafting of immature mammalian testis tissue to mouse hosts can preserve the male germline. To make this approach applicable to a clinical or field situation, it is imperative that the testis tissue and/or spermatozoa harvested from grafted tissue are preserved successfully. The aim of the present study was to evaluate protocols for the preservation of testis tissue in a porcine model. Testis tissue was stored at 4°C for short-term preservation or cryopreserved by slow-freezing, automated slow-freezing or vitrification for long-term storage. Preserved tissue was transplanted ectopically to mouse hosts and recovered xenografts were analysed histologically. In addition, spermatozoa were harvested from xenografts and cryopreserved. Total cell viability and germ cell viability remained high after tissue preservation. Complete spermatogenesis occurred in xenografts preserved by cooling up to 48 h, whereas spermatogenesis progressed to round spermatids in the xenografts that were frozen–thawed before grafting. Approximately 50% of spermatozoa harvested from xenografts remained viable after freezing and thawing. The in vivo developmental potential of cryopreserved tissue was reduced despite high post-thaw viability. Therefore, it is important to evaluate germ cell differentiation in vivo in addition to cell viability in vitro when optimising freezing protocols for testis tissue. PMID:19261226

Zeng, W.; Snedaker, A. K.; Megee, S.; Rathi, R.; Chen, F.; Honaramooz, A.; Dobrinski, I.

2009-01-01

171

Digital Preservation: A Time Bomb for Digital Libraries  

Microsoft Academic Search

Abstract. The difficulty and expense of preserving digital information is a potential impediment to digital library development. Preservation of traditional materials became,more,successful and systematic after libraries and archives integrated preservation into overall planning and resource allocation. Digital preservation is largely experimental and replete with the risks associated with untested methods. Digital preservation strategies are shaped by the needs and constraints

Margaret Hedstrom

1998-01-01

172

Preserving the Scholarly Side of the Web  

E-print Network

in curent web standards. We also describe the two comon preservation mecha- nisms, emulation and migration, as wel as our selection of the later for our particular case. Finaly, we compare two aproaches to migration, automatic and manual, and discus... of manual analysis. 3.4. Message preservation When preserving any document the conservation of the original mesage is of primary concern. While there is debate regarding the nature of a document [5], we use Levy’s definition—a document is the physical...

Mikeal, Adam; Green, Cody; Maslov, Alexey; Phillips, Scott; Leggett, John

2007-07-12

173

Fertility Preservation Methods in Breast Cancer  

PubMed Central

Thanks to the recent advances in reproductive medicine, more and more young women with breast cancer may be offered the possibility of preserving their fertility. Fertility can be endangered by chemotherapy, by treatment duration and by patient's age at diagnosis. The currently available means to preserve a young woman's fertility are pharmacological protection with gonadotrophin-releasing hormone analogues during chemotherapy, and ovarian tissue or oocyte/embryo freezing before treatment. New future venues, including in vitro maturation, will improve the feasibility and efficacy of the fertility preservation methods in breast cancer patients. PMID:22872792

Peccatori, Fedro A.; Pup, Lino Del; Salvagno, Francesca; Guido, Maurizio; Sarno, Maria A.; Revelli, Alberto; Piane, Luisa Delle; Dolfin, Elisabetta; Franchi, Dorella; Molinari, Emanuela; Immediata, Valentina; Chiavari, Leonora; Vucetich, Alessandra; Borini, Andrea

2012-01-01

174

Successful transplantation of rat hearts subjected to extended cold preservation with a novel preservation solution.  

PubMed

Since prolonged cold preservation of the heart deteriorates the outcome of heart transplantation, a more protective preservation solution is required. We therefore developed a new solution, named Dsol, and examined whether Dsol, in comparison to UW, could better inhibit myocardial injury resulting from prolonged cold preservation. Syngeneic heterotopic heart transplantation in Lewis rats was performed after cold preservation with UW or Dsol for 24 or 36 h. In addition to graft survival, myocardial injury, ATP content, and Ca(2+) -dependent proteases activity were assessed in the 24-h preservation group. The cytosolic Ca(2+) concentration of H9c2 cardiomyocytes after 24-h cold preservation was assessed. Dsol significantly improved 7-day graft survival after 36-h preservation. After 24-h preservation, Dsol was associated with significantly faster recovery of ATP content and less activation of calpain and caspase-3 after reperfusion. Dsol diminished graft injury significantly, as revealed by the lower levels of infarction, apoptosis, serum LDH and AST release, and graft fibrosis at 7-day. Dsol significantly inhibited Ca(2+) overload during cold preservation. Dsol inhibited myocardial injury and improved graft survival by suppressing Ca(2+) overload during the preservation and the activation of Ca(2+) -dependent proteases. Dsol is therefore considered a better alternative to UW to ameliorate the outcome of heart transplantation. PMID:22471391

Wakayama, Kenji; Fukai, Moto; Yamashita, Kenichiro; Kimura, Taichi; Hirokata, Gentaro; Shibasaki, Susumu; Fukumori, Daisuke; Haga, Sanae; Sugawara, Mitsuru; Suzuki, Tomomi; Taniguchi, Masahiko; Shimamura, Tsuyoshi; Furukawa, Hiroyuki; Ozaki, Michitaka; Kamiyama, Toshiya; Todo, Satoru

2012-06-01

175

Computational Biology  

NSDL National Science Digital Library

Dr. Jeff Krause, computational biologist and educator at Shodor Foundation Inc explores the changing face of contemporary biology and addresses these concepts: How has biology changed in recent history? How do computational models and tools help us to view biomolecular structures and motion? How do computational models relate to the shift towards systems thinking and study in biology? Shodor Foundation Inc is the leading partner for the NSDL Pathway for Computational Science (CSERD).This seminar was recorded live on December 11, 2007.

Payo, Robert

176

20 CFR 638.304 - Historical preservation.  

Code of Federal Regulations, 2012 CFR

...EMPLOYMENT AND TRAINING ADMINISTRATION, DEPARTMENT OF LABOR JOB CORPS PROGRAM UNDER TITLE IV-B OF THE JOB TRAINING PARTNERSHIP ACT Funding, Site Selection...638.304 Historical preservation. The Job Corps Director shall review the...

2012-04-01

177

Advances in ! Privacy-Preserving Machine Learning!  

E-print Network

Advances in ! Privacy-Preserving Machine Learning! Claire Monteleoni! Center for Computational-world data.! ! Want efficient algorithms, with performance guarantees.! Learning with online constraints: ! ! Algorithms for streaming, or time-varying data. ! Active learning: ! ! Algorithms for settings in which

Mohri, Mehryar

178

Data Preservation in High Energy Physics  

E-print Network

Data from high-energy physics (HEP) experiments are collected with significant financial and human effort and are in many cases unique. At the same time, HEP has no coherent strategy for data preservation and re-use, and many important and complex data sets are simply lost. In a period of a few years, several important and unique experimental programs will come to an end, including those at HERA, the b-factories and at the Tevatron. An inter-experimental study group on HEP data preservation and long-term analysis (DPHEP) was formed and a series of workshops were held to investigate this issue in a systematic way. The physics case for data preservation and the preservation models established by the group are presented, as well as a description of the transverse global projects and strategies already in place.

David M. South

2011-01-17

179

Data Preservation in High Energy Physics  

E-print Network

Data from high-energy physics (HEP) experiments are collected with significant financial and human effort and are in many cases unique. At the same time, HEP has no coherent strategy for data preservation and re-use, and many important and complex data sets are simply lost. In a period of a few years, several important and unique experimental programs will come to an end, including those at HERA, the b-factories and at the Tevatron. An inter-experimental study group on HEP data preservation and long-term analysis (DPHEP) was formed and a series of workshops were held to investigate this issue in a systematic way. The physics case for data preservation and the preservation models established by the group are presented, as well as a description of the transverse global projects and strategies already in place.

South, David M

2011-01-01

180

Color-preserving daytime radiative cooling  

SciTech Connect

We introduce a general approach to radiatively lower the temperature of a structure, while preserving its color under sunlight. The cooling effect persists in the presence of considerable convective and conductive heat exchange and for different solar absorptances.

Zhu, Linxiao [Department of Applied Physics, Stanford University, Stanford, California 94305 (United States)] [Department of Applied Physics, Stanford University, Stanford, California 94305 (United States); Raman, Aaswath; Fan, Shanhui, E-mail: shanhui@stanford.edu [Department of Electrical Engineering, Ginzton Laboratory, Stanford University, Stanford, California 94305 (United States)] [Department of Electrical Engineering, Ginzton Laboratory, Stanford University, Stanford, California 94305 (United States)

2013-11-25

181

Concise Review: Fertility Preservation: An Update  

PubMed Central

Fertility preservation is an emerging field in medicine that enables men, women, and children to maintain reproductive health when it is threatened by gonadotoxic treatment. Patients affected by other nononcologic malignancies that can impair spermatogenesis and ovogenesis can also benefit from fertility preservation treatments. Age-related infertility can also be overcome by cryopreserving gametes or embryos. The only established methods for fertility preservation in male patients are sperm cryopreservation in postpubertal age and experimental testicular tissue cryopreservation in prepubertal age. In adult women, oocyte cryopreservation is the preferred option, whereas ovarian tissue cryopreservation is the only possibility for prepubertal girls. Fertility preservation treatments must be addressed through a multidisciplinary approach that involves gynecologists, urologists, oncologists, pediatricians, and professionals in the field of medically assisted reproduction to work in coordination to provide patients with counseling and comprehensive information about fertility issues. PMID:23197873

Gonzalez, Clara; Boada, Montserrat; Devesa, Marta

2012-01-01

182

Color-preserving daytime radiative cooling  

NASA Astrophysics Data System (ADS)

We introduce a general approach to radiatively lower the temperature of a structure, while preserving its color under sunlight. The cooling effect persists in the presence of considerable convective and conductive heat exchange and for different solar absorptances.

Zhu, Linxiao; Raman, Aaswath; Fan, Shanhui

2013-11-01

183

Entanglement preservation: The Sleeping Beauty approach  

NASA Astrophysics Data System (ADS)

Two-qubit entanglement can be preserved by partially measuring the qubits to leave them in a 'lethargic' state. The original state is restored using quantum measurement reversal after the qubits have travelled through a decoherence channel.

Korotkov, Alexander N.

2012-02-01

184

TREATABILITY STUDIES FOR WOOD PRESERVING SITES  

EPA Science Inventory

The U.S. Environmental Protection Agency (EPA), National Risk Management Research Laboratory (NRMRL), Site Management Support Branch, conducted a comprehensive treatability project for wood preserving sites in 1995 and 1996. This is a compilation report on the treatability studi...

185

On Constructing Regular Distance-Preserving Graphs  

E-print Network

On Constructing Regular Distance-Preserving Graphs Dennis Ross1 , Bruce Sagan2 , Ronald Nussbaum1 and Engineering, {rossdenn, ronald, esfahanian}@cse.msu.edu 2Department of Mathematics, sagan@math.msu.edu 1 #12

Sagan, Bruce

186

Evaluating Hydrology Preservation of Simplified Terrain Representations  

E-print Network

Evaluating Hydrology Preservation of Simplified Terrain Representations Ph. D. Student: Christopher captures the hydrology is important for determining the effectiveness of a terrain simplification technique also present a novel ter- rain simplification algorithm based on the compression of hydrology features

Varela, Carlos

187

Coal sample preservation in foil multilaminate bags  

Microsoft Academic Search

An initial 1-year study on a bituminous coal sample indicated that storage under argon in heat-sealed 0.20-mm thick bags of laminated polyethylene, aluminum foil, and fibrous polyethylene preserved initial sample properties better than conventional containers already in use. Continuation of the study over 14 years showed that this storage protocol preserves that sample's initial properties very well. A 2-year comparison

David C. Glick; Gareth D. Mitchell; Alan Davis

2005-01-01

188

Digital-Preservation Announcement and Information List  

NSDL National Science Digital Library

This new moderated low-traffic announcement and current awareness mailing list will post announcements and information on activities relevant to the preservation and management of digital materials in the UK. "Topics will include: digital archiving, management and preservation; electronic records management; emulation; migration; long-term access; research projects; national, international and institutional initiatives in relevant areas." Information on joining the list and message logs are available at the URL above.

189

Updates in biological therapies for knee injuries: anterior cruciate ligament.  

PubMed

There have been many advances in anterior cruciate ligament reconstruction (ACLR) techniques incorporating biological treatment. The aim of this review is to discuss the recent contributions that may enlighten our understanding of biological therapies for anterior cruciate ligament (ACL) injuries and improve management decisions involving these enhancement options. Three main biological procedures will be analyzed: bio-enhanced ACL repair, bio-enhanced ACLR scrutinized under the four basic principles of tissue engineering (scaffolds, cell sources, growth factors/cytokines including platelet-rich plasma, and mechanical stimuli), and remnant-preserving ACLR. There is controversial information regarding remnant-preserving ACLR, since different procedures are grouped under the same designation. A new definition for remnant-preserving ACLR surgery is proposed, dividing it into its three major procedures (selective bundle augmentation, augmentation, and nonfunctional remnant preservation); also, an ACL lesion pattern classification and a treatment algorithm, which will hopefully standardize these terms and procedures for future studies, are presented. PMID:25070265

da Silveira Franciozi, Carlos Eduardo; Ingham, Sheila Jean McNeill; Gracitelli, Guilherme Conforto; Luzo, Marcus Vinicius Malheiros; Fu, Freddie H; Abdalla, Rene Jorge

2014-09-01

190

15 CFR 270.330 - Moving and preserving evidence.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Moving and preserving evidence. 270.330 Section 270.330 ...TEAMS Collection and Preservation of Evidence; Information Created Pursuant to an...Protection of Information Preservation of Evidence § 270.330 Moving and...

2010-01-01

191

22 CFR 98.2 - Preservation of Convention records.  

Code of Federal Regulations, 2010 CFR

...2010-04-01 false Preservation of Convention records. 98.2 Section 98.2...RELATED SERVICES INTERCOUNTRY ADOPTION-CONVENTION RECORD PRESERVATION § 98.2 Preservation of Convention records. Once the...

2010-04-01

192

21 CFR 146.152 - Orange juice with preservative.  

Code of Federal Regulations, 2010 CFR

... 2010-04-01 2010-04-01 false Orange juice with preservative. 146.152 Section...Canned Fruit Juices and Beverages § 146.152 Orange juice with preservative. (a) Orange juice with preservative is the food...

2010-04-01

193

48 CFR 5231.205-90 - Shipbuilding capability preservation agreements.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 false Shipbuilding capability preservation agreements. 5231.205-90...Organizations 5231.205-90 Shipbuilding capability preservation agreements. (a) Scope...the Navy may enter into a shipbuilding capability preservation agreement with a...

2010-10-01

194

An Efficient Privacy Preserving Keyword Search Scheme in Cloud Computing  

E-print Network

An Efficient Privacy Preserving Keyword Search Scheme in Cloud Computing Qin Liu, Guojun Wang computing and propose an efficient privacy preserving keyword search scheme in cloud computing. It allows computing; privacy preserving; searchable encryption; partial decipherment I. Introduction Cloud computing

Wu, Jie

195

37 CFR 1.14 - Patent applications preserved in confidence.  

Code of Federal Regulations, 2012 CFR

...false Patent applications preserved in confidence. 1.14 Section 1.14 Patents...14 Patent applications preserved in confidence. (a) Confidentiality of patent...122(b) are generally preserved in confidence pursuant to 35 U.S.C....

2012-07-01

196

37 CFR 1.14 - Patent applications preserved in confidence.  

Code of Federal Regulations, 2013 CFR

...false Patent applications preserved in confidence. 1.14 Section 1.14 Patents...14 Patent applications preserved in confidence. (a) Confidentiality of patent...122(b) are generally preserved in confidence pursuant to 35 U.S.C....

2013-07-01

197

Lipid Biomarker Preservation in Silica-Depositing Hydrothermal Analogs  

NASA Astrophysics Data System (ADS)

The discovery of extensive silica-rich deposits at Home Plate in the Columbia Hills indicates that hydrothermal conditions once existed on Mars (Squyres et al. 2008). Two types of environments could have been responsible for forming these materials: fumaroles or hydrothermal springs. Examples of both types of these thermal features are found throughout Yellowstone National Park (YNP). The discovery of bona fide microfossils in ancient cherts indicates that silica deposition was an excellent mechanism for organic preservation on the early Earth. Given the importance that organic biomarkers have played in identifying some of the earliest microbial life on Earth and the potential for a similar habitable period on Mars, examination of the preservation of organic biomarkers within various hydrothermal, silica-rich modern analogs is essential for future interpretation of Martian organics. Cyanobacterial mats and biofilms are common inhabitants of hydrothermal spring systems worldwide, at temperatures below 73°C and over a broad range of pH, from acidic to alkaline. Bacteriohopanepolyols (BHPs) are the biological precursors for the abundant fossil hopanes recovered from sedimentary rock (Brocks et al. 1999; Summons et al. 1999). The 2-methyl homologs are generally considered a biomarker for cyanobacterial-dominated paleoecosystems. Some evidence exists that the complex molecular structure of BHP is retained upon entombment in hydrothermal silica and that rapid incorporation into the silica matrix may enhance preservation (Gibson et al. 2008). Here we report on the preservation of microbial lipids in several alkaline and acidic, silica-depositing hotsprings in YNP with particular emphasis on the potential for BHP preservation. Brocks JJ et al (1999) Archaean molecular fossils and the early rise of the eukaryotes. Science 185: 1033-1036 Gibson RA et al (2008) Bacteriohopanepolyol signatures of cyanobacterial and methanotrophic bacterial populations recorded in a geothermal vent sinter. Organic Geochemistry 39: 1020-1023 Squyres SW et al (2008) Detection of silica-rich deposits on Mars. Science 320: 1063-1067 Summons RE et al (1999) 2-Methylhopanoids as biomarkers for cyanobacterial oxygenic photosynthesis. Nature 400: 554-557

Jahnke, L. L.; Parenteau, M. N.; Farmer, J. D.

2010-12-01

198

Preservation of cardiomyocytes from the adult heart.  

PubMed

Cardiomyocytes represent one of the most useful models to conduct cardiac research. A single adult heart yields millions of cardiomyocytes, but these cells do not survive for long after isolation. We aimed to determine whether inhibition of myosin II ATPase that is essential for muscle contraction may preserve fully differentiated adult cardiomyocytes. Using inhibitors of the myosin II ATPase, blebbistatin and N-benzyl-p-toluene sulphonamide (BTS), we preserved freshly isolated fully differentiated adult primary cardiomyocytes that were stored at a refrigerated temperature. Specifically, preserved cardiomyocytes stayed viable for a 2-week period with a stable expression of cardiac genes and retained the expression of key markers characteristic of cardiomyocytes. Furthermore, voltage-clamp, action potential, calcium transient and contractility studies confirmed that the preserved cardiomyocytes are comparable to freshly isolated cells. Long-term exposure of preserved cardiomyocytes to four tyrosine kinase inhibitors, sunitinib malate, dasatinib, sorafenib tosylate and imatinib mesylate, revealed their potential to induce cardiac toxicity that was manifested with a decrease in contractility and induction of cell death, but this toxicity was not observed in acute experiments conducted over the time course amenable to freshly prepared cardiomyocytes. This study introduces the concept that the inhibition of myosin II ATPase safeguards the structure and function of fully differentiated adult cardiomyocytes. The fact that these preserved cardiomyocytes can be used for numerous days after preparation makes them a robust and versatile tool in cardiac research and allows the investigation of long-term exposure to novel drugs on cardiomyocyte function. PMID:24051370

Abi-Gerges, Najah; Pointon, Amy; Pullen, Georgia F; Morton, Michael J; Oldman, Karen L; Armstrong, Duncan; Valentin, Jean-Pierre; Pollard, Christopher E

2013-11-01

199

The role of molybdenum in human biology  

Microsoft Academic Search

Molybdenum, because of its unique chemistry, is the biological catalyst for reactions in which proton and electron transfer, and possibly oxygen transfer, are coupled. The molybdoenzymes in man are sulphite oxidase, xanthine oxidase\\/dehydrogenase and aldehyde oxidase. The former is essential for detoxication of the sulphite arising from metabolism of sulphur-containing amino acids, from ingestion of bisulphite preservative and from inhalation

M. P. Coughlan

1983-01-01

200

Music biology: all this useful beauty.  

PubMed

Some healthy people fail to derive pleasure from music despite otherwise preserved perceptual and reward responses. Such 'musical anhedonia' implies the existence of music-specific brain reward mechanisms, which could provide a substrate for music to acquire biological value. PMID:24650910

Clark, Camilla N; Downey, Laura E; Warren, Jason D

2014-03-17

201

Biological Therapy  

Cancer.gov

Biological therapy (BYE-o-loj-ee-cal THER-ah-py) is a type of treatment that works with your immune system. It can help fight cancer or help control side effects (how your body reacts to the drugs you are taking) from other cancer treatments like chemotherapy. What is the difference between biological therapy and chemotherapy?

202

Biology Notes.  

ERIC Educational Resources Information Center

Presents procedures, exercises, demonstrations, and information on a variety of biology topics including labeling systems, biological indicators of stream pollution, growth of lichens, reproductive capacity of bulbous buttercups, a straw balance to measure transpiration, interaction of fungi, osmosis, and nitrogen fixation and crop production. (DC)

School Science Review, 1982

1982-01-01

203

Synthetic biology  

Microsoft Academic Search

Synthetic biologists come in two broad classes. One uses unnatural molecules to reproduce emergent behaviours from natural biology, with the goal of creating artificial life. The other seeks interchangeable parts from natural biology to assemble into systems that function unnaturally. Either way, a synthetic goal forces scientists to cross uncharted ground to encounter and solve problems that are not easily

A. Michael Sismour; Steven A. Benner

2005-01-01

204

Quantum Biology  

E-print Network

A critical assessment of the recent developments of molecular biology is presented. The thesis that they do not lead to a conceptual understanding of life and biological systems is defended. Maturana and Varela's concept of autopoiesis is briefly sketched and its logical circularity avoided by postulating the existence of underlying {\\it living processes}, entailing amplification from the microscopic to the macroscopic scale, with increasing complexity in the passage from one scale to the other. Following such a line of thought, the currently accepted model of condensed matter, which is based on electrostatics and short-ranged forces, is criticized. It is suggested that the correct interpretation of quantum dispersion forces (van der Waals, hydrogen bonding, and so on) as quantum coherence effects hints at the necessity of including long-ranged forces (or mechanisms for them) in condensed matter theories of biological processes. Some quantum effects in biology are reviewed and quantum mechanics is acknowledged as conceptually important to biology since without it most (if not all) of the biological structures and signalling processes would not even exist. Moreover, it is suggested that long-range quantum coherent dynamics, including electron polarization, may be invoked to explain signal amplification process in biological systems in general.

Alessandro Sergi

2009-07-11

205

Synthetic biology.  

PubMed

Synthetic biologists come in two broad classes. One uses unnatural molecules to reproduce emergent behaviours from natural biology, with the goal of creating artificial life. The other seeks interchangeable parts from natural biology to assemble into systems that function unnaturally. Either way, a synthetic goal forces scientists to cross uncharted ground to encounter and solve problems that are not easily encountered through analysis. This drives the emergence of new paradigms in ways that analysis cannot easily do. Synthetic biology has generated diagnostic tools that improve the care of patients with infectious diseases, as well as devices that oscillate, creep and play tic-tac-toe. PMID:15995697

Benner, Steven A; Sismour, A Michael

2005-07-01

206

BIOLOGICAL WARFARE  

PubMed Central

The use of biological agents as controlled weapons of war is practical although uncertain. Three types of agents are feasible, including pathogenic organisms and biological pests, toxins, and synthetic hormones regulating plant growth. These agents may be chosen for selective effects varying from prolonged incipient illness to death of plants, man and domestic animals. For specific preventive and control measures required to combat these situations, there must be careful and detailed planning. The nucleus of such a program is available within the existing framework of public health activities. Additional research and expansion of established activities in time of attack are necessary parts of biological warfare defense. PMID:13059641

Beeston, John

1953-01-01

207

Closed Loop Recycling of PreservativeClosed Loop Recycling of Preservative Treated WoodTreated Wood  

E-print Network

Closed Loop Recycling of PreservativeClosed Loop Recycling of Preservative Treated WoodTreated WoodDisposal problem Recycling potentialRecycling potential ValueValue--added productsadded products Closed loop recyclingClosed loop recycling #12;Major Current Disposal OptionsMajor Current Disposal Options Incineration

208

Exceptionally Preserved Jellyfishes from the Middle Cambrian  

PubMed Central

Cnidarians represent an early diverging animal group and thus insight into their origin and diversification is key to understanding metazoan evolution. Further, cnidarian jellyfish comprise an important component of modern marine planktonic ecosystems. Here we report on exceptionally preserved cnidarian jellyfish fossils from the Middle Cambrian (?505 million years old) Marjum Formation of Utah. These are the first described Cambrian jellyfish fossils to display exquisite preservation of soft part anatomy including detailed features of structures interpreted as trailing tentacles and subumbrellar and exumbrellar surfaces. If the interpretation of these preserved characters is correct, their presence is diagnostic of modern jellyfish taxa. These new discoveries may provide insight into the scope of cnidarian diversity shortly after the Cambrian radiation, and would reinforce the notion that important taxonomic components of the modern planktonic realm were in place by the Cambrian period. PMID:17971881

Cartwright, Paulyn; Halgedahl, Susan L.; Hendricks, Jonathan R.; Jarrard, Richard D.; Marques, Antonio C.; Collins, Allen G.; Lieberman, Bruce S.

2007-01-01

209

[The health preserving behavior in adolescents].  

PubMed

The article deals with the results of study of health preserving behavior of 310 students of senior classes of high schools of town of Jukovsky of Moskovskaya oblast. The higher level of prevalence of harmful habits among adolescents is revealed. It is emphasized that among girls the prevalence of harmful habits is not at large lower than among boys. The lower level of medical activities of respondents is explained by mistrusting physicians of curative preventive establishments, fear of queues, self-confidence in one's own knowledge and low level of medical awareness. The priority of physical culture and sport in the life of adolescents is reducing. The reorientation of trends in modern fashion to the behavior stereotypes with motional activities restriction occurs. The making of conditions to develop consistent health preserving behavior can become the most important reserve of preservation and enhancement of adolescents' health. PMID:20731146

Al'bitskii, V Iu; Makeev, N I

2010-01-01

210

North Bay Historic Preservation Digital Collection  

NSDL National Science Digital Library

The North Bay Historic Preservation Digital Collection is just one of the online offerings from the Sonoma State University Library. It's a fascinating collection, bringing together photographs and planning documents related to buildings and landscapes in and around this historically rich area. The photographs were taken by students enrolled in the institution's historic preservation program in the 1970s. A good place to start is by taking a look at the photos of the historic Stone House, which is the oldest building in Lake County. Visitors can also search the entire archive by keyword or look over the technical reports like the "Sonoma County General Plan for Historic Preservation." As a whole, it's a great way to learn about the rich cultural and architectural landscape of the area.

211

Biology Notes  

ERIC Educational Resources Information Center

Ten ideas that have been tried out by the authors in schools are presented for biology teachers. The areas covered include genetics, dispersal of seeds, habituation in earthworms, respiration, sensory neurons, fats and oils. A reading list is provided. (PS)

School Science Review, 1972

1972-01-01

212

Biological monitoring  

SciTech Connect

Biological monitoring is defined as the measurement and assessment of workplace agents or their metabolites in tissues, secreta, excreta, expired air, or any combination of these to evaluate exposure and health risk compared to an appropriate reference. Biological monitoring offers several advantages: it takes into account individual variability in biological activity resulting from a chemical insult. It takes into account the effects of personal physical activity and individual life styles. It is a valuable adjunct to ambient monitoring and health surveillance. The importance of chemical speciation in the toxicity of pollutants is discussed. Basic protocols for lead, aluminum, cadmium, mercury, selenium, and nickel are presented. Basic criteria for biological monitoring methods are presented. 11 references, 1 table.

Ho, M.H.; Dillon, H.K.

1986-02-01

213

Bottle Biology.  

ERIC Educational Resources Information Center

Provides hands-on biology activities using plastic bottles that allow students to become engaged in asking questions, creating experiments, testing hypotheses, and generating answers. Activities explore terrestrial and aquatic systems. (MKR)

CSTA Journal, 1995

1995-01-01

214

Computational Biology  

NSDL National Science Digital Library

Basic Chemistry and Molecular Biology; Introduction to Genomics. Data Mining (NCBI Bookshelf, OMIM, PubMed, NCBI databases). Introductions to Sequence similarity searches and BLAST, Multiple Alignments and Phylogenetic Analysis, Protein Structure databases and 3D viewers.

Barnes, William S.

215

Biological Thermodynamics  

NASA Astrophysics Data System (ADS)

Biological Thermodynamics provides an introduction to the study of energy transformations for students of the biological sciences. Donald Haynie uses an informal writing style to introduce this core subject in a manner that will appeal to biology and biochemistry undergraduate students. The emphasis of the text is placed on understanding basic concepts and developing problem-solving skills throughout the text. The level of mathematical complexity is kept to a minimum. Each chapter provides numerous examples taken from different areas of biochemistry, as well as extensive exercises to aid understanding. Topics covered include energy and its transformation, the First Law of Thermodynamics, the Second Law of Thermodynamics, Gibbs Free Energy, statistical thermodynamics, binding equilibria and reaction kinetics, and a survey of the most exciting areas of biological thermodynamics today, particularly the origin of life on Earth.

Haynie, Donald T.

2001-03-01

216

Biology Notes  

ERIC Educational Resources Information Center

Some helpful ideas are proposed for use by biology teachers. Topics included are Food Webs,'' Key to Identification of Families,'' Viruses,'' Sieve Tube,'' Woodlice,'' Ecology of Oak Leaf Roller Moth,'' and Model Making.'' (PS)

School Science Review, 1973

1973-01-01

217

Navigation Links Biology News  

E-print Network

the promise of personalized medicine." A paper describing the research, "Nanofountain Probe ElectroporationNavigation Links Biology News Medicine News Biology Products Medicine Products Biology Definition Medicine Definition Biology Technology Medicine Technology Biology Dictionary Medicine Dictionary Biology

Espinosa, Horacio D.

218

Moesin functionality in hypothermic liver preservation injury.  

PubMed

The objective of this study was to determine how expression and functionality of the cytoskeletal linker protein moesin is involved in hepatic hypothermic preservation injury. Mouse livers were cold stored in University of Wisconsin (UW) solution and reperfused on an isolated perfused liver (IPL) device for one hour. Human hepatocytes (HepG2) and human or murine sinusoidal endothelial cells (SECs) were cold stored and rewarmed to induce hypothermic preservation injury. The cells were transfected with: wild type moesin, an siRNA duplex specific for moesin, and the moesin mutants T558D and T558A. Tissue and cell moesin expression and its binding to actin were determined by Western blot. Liver IPL functional outcomes deteriorated proportional to the length of cold storage, which correlated with moesin disassociation from the actin cytoskeleton. Cell viability (LDH and WST-8) in the cell models progressively declined with increasing preservation time, which also correlated with moesin disassociation. Transfection of a moesin containing plasmid or an siRNA duplex specific for moesin into HepG2 cells resulted in increased and decreased moesin expression, respectively. Overexpression of moesin protected while moesin knock-down potentiated preservation injury in the HepG2 cell model. Hepatocytes expressing the T558A (inactive) and T558D (active) moesin binding mutants demonstrated significantly more and less preservation injury, respectively. Cold storage time dependently caused hepatocyte detachment from the matrix and cell death, which was prevented by the T558D active moesin mutation. In conclusion, moesin is causally involved in hypothermic liver cell preservation injury through control of its active binding molecular functionality. PMID:24836372

Tian, Tao; Lindell, Susanne L; Kowalski, Chris; Mangino, Martin J

2014-08-01

219

43 CFR 15.12 - Closing of Preserve.  

Code of Federal Regulations, 2012 CFR

...Preserve. 15.12 Section 15.12 Public Lands: Interior Office of the Secretary of the Interior KEY LARGO CORAL REEF PRESERVE § 15.12 Closing of Preserve. The Preserve may be closed to public use in the event of emergency...

2012-10-01

220

43 CFR 15.12 - Closing of Preserve.  

Code of Federal Regulations, 2013 CFR

...Preserve. 15.12 Section 15.12 Public Lands: Interior Office of the Secretary of the Interior KEY LARGO CORAL REEF PRESERVE § 15.12 Closing of Preserve. The Preserve may be closed to public use in the event of emergency...

2013-10-01

221

43 CFR 15.12 - Closing of Preserve.  

Code of Federal Regulations, 2010 CFR

...Preserve. 15.12 Section 15.12 Public Lands: Interior Office of the Secretary of the Interior KEY LARGO CORAL REEF PRESERVE § 15.12 Closing of Preserve. The Preserve may be closed to public use in the event of emergency...

2010-10-01

222

43 CFR 15.12 - Closing of Preserve.  

Code of Federal Regulations, 2011 CFR

...Preserve. 15.12 Section 15.12 Public Lands: Interior Office of the Secretary of the Interior KEY LARGO CORAL REEF PRESERVE § 15.12 Closing of Preserve. The Preserve may be closed to public use in the event of emergency...

2011-10-01

223

Preservation of Newspapers: Theoretical Approaches and Practical Achievements  

ERIC Educational Resources Information Center

The preservation of newspapers is the main topic of this paper. A theoretical overview of newspaper preservation is given, with an emphasis on the importance of a systematic and comprehensive approach. Efficient newspaper preservation implies understanding the meaning of preservation in general, as well as understanding specific approaches,…

Hasenay, Damir; Krtalic, Maja

2010-01-01

224

Outsourcing Privacy-PreservingOutsourcing Privacy-PreservingOutsourcing Privacy-PreservingOutsourcing Privacy-Preserving Social Networks to a CloudSocial Networks to a CloudSocial Networks to a CloudSocial Networks to a Cloud  

E-print Network

Outsourcing Privacy-Preserving Social Networks to a CloudSocial Networks to a CloudSocial Networks to a CloudOutsourcing Privacy-PreservingOutsourcing Privacy-PreservingOutsourcing Privacy-Preserving University Calumet, USA 2013-4-18 #12;IntroductionIntroductionIntroductionIntroduction #12;Cloud Computing

Wu, Jie

225

TEXAS PAVEMENT PRESERVATION CENTER FOUR-YEAR SUMMARY REPORT  

E-print Network

TEXAS PAVEMENT PRESERVATION CENTER FOUR-YEAR SUMMARY REPORT Dr. Yetkin Yildirim, P.E., TPPC Director E-mail: yetkin@mail.utexas.edu Mailing address: Texas Pavement Preservation Center Center................................................................................................ 100 #12;#12;TEXAS PAVEMENT PRESERVATION CENTER (TPPC) About the Center The Texas Pavement Preservation

Texas at Austin, University of

226

Preserve@Home University of Idaho, Oregon State,  

E-print Network

Foods 6. Freezing and Drying At the conclusion of the on-line course work a final exam is given are offering Preserve @ Home to teach adults how to safely preserve a variety of food products. Participants learn how to produce high quality preserved foods and the science behind food preservation and food

227

Geology Fieldnotes: Ice Age National Scientific Preserve  

NSDL National Science Digital Library

This National Park Service (NPS) site gives information on the Ice Age National Scientific Preserve in Wisconsin, including geology, park maps, a photo album, and other media (books, videos, CDs). There is also a selection of links to other geologic and conservation organizations, and to information for visitors. This preserve contains a wealth of glacial features associated with the most recent Pleistocene continental glaciation including drumlins, kames, kettles, moraines, erratics, and eskers. It also contains a segment of the Ice Age National Scenic Trail, a 1000-plus mile hiking and backpacking trail that passes through this unique glacial landscape.

228

An edge preserving differential image coding scheme.  

PubMed

Differential encoding techniques are fast and easy to implement. However, a major problem with the use of differential encoding for images is the rapid edge degradation encountered when using such systems. This makes differential encoding techniques of limited utility, especially when coding medical or scientific images, where edge preservation is of utmost importance. A simple, easy to implement differential image coding system with excellent edge preservation properties is presented. The coding system can be used over variable rate channels, which makes it especially attractive for use in the packet network environment. PMID:18296160

Rost, M C; Sayood, K

1992-01-01

229

Formation and preservation of raindrop imprints  

NSDL National Science Digital Library

Students work in groups to study some aspect of formation and/or preservation of raindrop imprints. They start by generating a list of variables that might affect formation or preservation of this sedimentary structure. Using this list, they propose testable hypotheses and then focus their study on one hypothesis. They collect materials needed to carry out their study and then do it. They need to document what they did and how they did it. The groups present their study to the class orally and in writing.

Mankiewicz, Carol

230

Environmental preservation demand: Altruistic, bequest, and intrinsic motives  

SciTech Connect

When the demand for environmental preservation is not explicitly revealed in markets, motivating attitudes toward environmental preservation become important. A survey approach allows revelation and measurement of demand for environmental preservation. Indices which measure the altruistic, bequest, intrinsic, and option to use motives and other attitudes are utilized as determinants in a model that measures the demand for environmental preservation. Demand is more likely with greater preservation motives. Preservation demand also depends on individual preferences for economic development, perceptions of affordability and responsibility for preservation of the wetlands. 17 refs., 3 tabs.

Whitehead, J.C.; Thompson, C.Y. (East Carolina Univ., Greenville, NC (United States))

1993-01-01

231

Dermal preservation using the Versajet hydrosurgery system for debridement of paediatric burns.  

PubMed

Loss of dermis is one of the principal factors that contributes to poor scar outcome after severe burn. Dermal loss may be due to the primary injury, surgical management or as a result of infection. Strategies for dermal preservation are therefore important to improve scar quality. We report our early experience using the Versajet hydrosurgery system, to preserve dermal tissues, both directly during surgical debridement and indirectly by reducing infection and optimising the use of biological dressings. In deep partial thickness burns softer necrotic dermis can be removed with the Versajet sparing the underlying tougher viable dermis. In superficial burns the Versajet cleans and removes loose epidermal elements providing an optimal wound surface for the application of biological dressings, even a number of days after injury. Versajet is most useful when the tissue to be removed is softer than that to be left behind. PMID:16849034

Cubison, Tania C S; Pape, Sarah A; Jeffery, Steven L A

2006-09-01

232

SYSTEM BIOLOGY: Biological Systems Theory  

NSDL National Science Digital Library

Robustness, a widely used concept in biology, has so far not been well defined. This perspective discusses the theorem formulated by Shinar and Feinberg which shows when a biochemical network exhibits âÂÂabsolute concentration robustness.âÂÂ

Jeremy Gunawardena (Harvard Medical School;Department of Systems Biology)

2010-04-30

233

Isolated total RNA and protein are preserved after thawing for more than twenty-four hours  

PubMed Central

OBJECTIVE: The preservation of biological samples at a low temperature is important for later biochemical and/or histological analyses. However, the molecular viability of thawed samples has not been studied sufficiently in depth. The present study was undertaken to evaluate the viability of intact tissues, tissue homogenates, and isolated total RNA after defrosting for more than twenty-four hours. METHODS: The molecular viability of the thawed samples (n?=?82) was assessed using the A260/A280 ratio, the RNA concentration, the RNA integrity, the level of intact mRNA determined by reverse transcriptase polymerase chain reaction, the protein level determined by Western blotting, and an examination of the histological structure. RESULTS: The integrity of the total RNA was not preserved in the thawed intact tissue, but the RNA integrity and level of mRNA were perfectly preserved in isolated defrosted samples of total RNA. Additionally, the level of ?-actin protein was preserved in both thawed intact tissue and homogenates. CONCLUSION: Isolated total RNA does not undergo degradation due to thawing for at least 24 hours, and it is recommended to isolate the total RNA as soon as possible after tissue collection. Moreover, the protein level is preserved in defrosted tissues. PMID:22473407

de Oliveira, Ivone Braga; Ramos, Debora Rothstein; Lopes, Karen Lucasechi; de Souza, Regiane Machado; Heimann, Joel Claudio; Furukawa, Luzia Naoko Shinohara

2012-01-01

234

[Biological activity of Spirulina].  

PubMed

In this review information of Spirulina platensis (SP), a blue-green alga (photosynthesizing cyanobacterium) having diverse biological activity is presented. Due to high content of highly valuable proteins, indispensable amino acids, vitamins, beta-carotene and other pigments, mineral substances, indispensable fatty acids and polysaccharides, PS has been found suitable for use as bioactive additive. SP produces an immunostimulating effect by enhancing the resistance of humans, mammals, chickens and fish to infections, the capacity of influencing hemopoiesis, stimulating the production of antibodies and cytokines. Under the influence of SP macrophages, T and B cells are activated. SP sulfolipids have proved to be effective against HIV. Preparations obtained from SP biomass have also been found active against herpesvirus, cytomegalovirus, influenza virus, etc. SP extracts are capable in inhibiting cancerogenesis. SP preparations are regarded as functional products contributing to the preservation of the resident intestinal microflora, especially lactic acid bacilli and bifidobacteria, and to a decrease in the level of Candida albicans. The biological activity of SP with respect to microorganisms holds good promise for using these microalgae as components of culture media. PMID:11548244

Blinkova, L P; Gorobets, O B; Baturo, A P

2001-01-01

235

Coatings Preserve Metal, Stone, Tile, and Concrete  

NASA Technical Reports Server (NTRS)

John B. Schutt, a chemist at Goddard Space Flight Center, created a coating for spacecraft that could resist corrosion and withstand high heat. After retiring from NASA, Schutt used his expertise to create new formulations for Daytona Beach, Florida-based Adsil Corporation, which now manufactures a family of coatings to preserve various surfaces. Adsil has created 150 jobs due to the products.

2014-01-01

236

Numerical radius preserving operators on C * -algebras  

Microsoft Academic Search

Let A be a unital C*-algebra. An element u of A is unitary and belongs to the centre of A if and only if $ |\\\\varphi (u)| = 1 $ for every pure state $ \\\\varphi $. Using this fact we show that a numerical radius preserving linear isomorphism on A is a C*-isomorphism multiplied by a fixed unitary element

Jor-Ting Chan

1998-01-01

237

Mechanism for Burgess Shale-type preservation  

PubMed Central

Exceptionally preserved fossil biotas of the Burgess Shale and a handful of other similar Cambrian deposits provide rare but critical insights into the early diversification of animals. The extraordinary preservation of labile tissues in these geographically widespread but temporally restricted soft-bodied fossil assemblages has remained enigmatic since Walcott’s initial discovery in 1909. Here, we demonstrate the mechanism of Burgess Shale-type preservation using sedimentologic and geochemical data from the Chengjiang, Burgess Shale, and five other principal Burgess Shale-type deposits. Sulfur isotope evidence from sedimentary pyrites reveals that the exquisite fossilization of organic remains as carbonaceous compressions resulted from early inhibition of microbial activity in the sediments by means of oxidant deprivation. Low sulfate concentrations in the global ocean and low-oxygen bottom water conditions at the sites of deposition resulted in reduced oxidant availability. Subsequently, rapid entombment of fossils in fine-grained sediments and early sealing of sediments by pervasive carbonate cements at bed tops restricted oxidant flux into the sediments. A permeability barrier, provided by bed-capping cements that were emplaced at the seafloor, is a feature that is shared among Burgess Shale-type deposits, and resulted from the unusually high alkalinity of Cambrian oceans. Thus, Burgess Shale-type preservation of soft-bodied fossil assemblages worldwide was promoted by unique aspects of early Paleozoic seawater chemistry that strongly impacted sediment diagenesis, providing a fundamentally unique record of the immediate aftermath of the “Cambrian explosion.” PMID:22392974

Gaines, Robert R.; Hammarlund, Emma U.; Hou, Xianguang; Qi, Changshi; Gabbott, Sarah E.; Zhao, Yuanlong; Peng, Jin; Canfield, Donald E.

2012-01-01

238

Manifold Preserving Edit Propagation Xiaowu Chen  

E-print Network

. Hence, when affinity-based edit propagation methods such as [Xu et al. 2009] are applied to recolorManifold Preserving Edit Propagation Xiaowu Chen Dongqing Zou Qinping Zhao State Key Laboratory 1: Our edit propagation algorithm can be applied for various applications including color

Tan, Ping

239

Developing a Policy Framework for Digital Preservation  

Microsoft Academic Search

The Arts and Humanities Data Service (AHDS) has been established by the Joint Information Systems Committee of the UK's Higher Education Funding Councils to collect, preserve and promote re-use of digital resources which result from or support research and teaching in the arts and humanities. Within the UK, the Digital Archiving Working Group (DAWG) has been formed to co-ordinate research

Neil Beagrie

1998-01-01

240

Sustainability: Preserving Choice for the Army  

E-print Network

Sustainability: Preserving Choice for the Army Friday, October 19, 2012 12:00 - 1:30 p.m. (lunch will be provided) Wrigley Hall, Room 481 Richard Kidd Deputy Assistant of the Army, Energy and Sustainability infrastructure. The development of Army-wide sustainability principles coupled with investments, training

Hall, Sharon J.

241

Protecting & Preserving a Vital Natural Resource  

E-print Network

Protecting & Preserving a Vital Natural Resource C h e s a p e a k e B ay R e s e a R C h #12;The natural resources. The Chesapeake Bay watershed stretches across 64,000 square miles in six states and antimicrobials, such as Staphylococcus aureus (MRSA), that may remain in treated wastewater. amy R. sapkota

Hill, Wendell T.

242

Preserving information long-term: digital archiving  

Microsoft Academic Search

A panel discussion regarding digital archiving efforts by the U.S. Library of Congress (LC). In December 2000 Congress authorized LC to develop and execute a plan for a National Digital Information Infrastructure and Preservation Program (NDIIPP). LC developed a plan, in collaboration with other federal and nonfederal entities, to build a national network of organizations with responsibilities for collecting digital

William G. LeFurgy; Margaret Hedstrom; Theresa A. Pardo; Tyler O. Walters

2005-01-01

243

Knowledge Preservation and Web-tools  

NASA Technical Reports Server (NTRS)

We propose a library of "netbooks" as part of a national effort, preserving the wisdom of the early Space Program. NASA is losing its rocket scientists who designed the great systems of the past. Few new systems of similar ambition are being built; much of the expertise that took us to the Moon is evaporating. With retiring NASA designers, we work to preserve something of the expertise of these individuals, developed at great national cost. We show others the tools that make preservation easy and cheap. Retiring engineers and scientists can be coached into speaking (without charge) into recording devices about ideas not widely appreciated but of potential future value. Transcripts of the recordings and the audio itself are combined (cheaply) in netbooks accessible via a standard web-browser (free). Selected netbooks are indexed into a rapidly searchable system, an electronic Library. We recruit support in establishing a standards committee for that Library. The system is to be a model for access by the blind as well as for preservation of important, technical knowledge.

Moreman, Douglas; Dyer, John; Ahmad, Rashed

1998-01-01

244

Privacy preserving mapping schemes supporting comparison  

Microsoft Academic Search

To cater to the privacy requirements in cloud computing, we introduce a new primitive, namely Privacy Preserving Mapping (PPM) schemes supporting comparison. An PPM scheme enables a user to map data items into images in such a way that, with a set of images, any entity can determine the relationships among the corresponding data items. We propose three privacy notions,

Qiang Tang

2010-01-01

245

Preservation of Archaeological Textiles Through Fibre Mineralization  

Microsoft Academic Search

Copper mineralized plant fibre cordage (c. 1500) found at an archaeological site was used to study fibre microstructural degradation in response to a specific burial environment and the preservation of textiles through mineralization. The process of cellulose fibre mineralization was simulated in the laboratory in an effort to prepare mineralized plant fibres under known conditions. A model for dyeing cellulosic

H. L. Chen; K. A. Jakes; D. W. Foreman

1998-01-01

246

Fossil avian eggshell preserves ancient DNA  

PubMed Central

Owing to exceptional biomolecule preservation, fossil avian eggshell has been used extensively in geochronology and palaeodietary studies. Here, we show, to our knowledge, for the first time that fossil eggshell is a previously unrecognized source of ancient DNA (aDNA). We describe the successful isolation and amplification of DNA from fossil eggshell up to 19 ka old. aDNA was successfully characterized from eggshell obtained from New Zealand (extinct moa and ducks), Madagascar (extinct elephant birds) and Australia (emu and owl). Our data demonstrate excellent preservation of the nucleic acids, evidenced by retrieval of both mitochondrial and nuclear DNA from many of the samples. Using confocal microscopy and quantitative PCR, this study critically evaluates approaches to maximize DNA recovery from powdered eggshell. Our quantitative PCR experiments also demonstrate that moa eggshell has approximately 125 times lower bacterial load than bone, making it a highly suitable substrate for high-throughput sequencing approaches. Importantly, the preservation of DNA in Pleistocene eggshell from Australia and Holocene deposits from Madagascar indicates that eggshell is an excellent substrate for the long-term preservation of DNA in warmer climates. The successful recovery of DNA from this substrate has implications in a number of scientific disciplines; most notably archaeology and palaeontology, where genotypes and/or DNA-based species identifications can add significantly to our understanding of diets, environments, past biodiversity and evolutionary processes. PMID:20219731

Oskam, Charlotte L.; Haile, James; McLay, Emma; Rigby, Paul; Allentoft, Morten E.; Olsen, Maia E.; Bengtsson, Camilla; Miller, Gifford H.; Schwenninger, Jean-Luc; Jacomb, Chris; Walter, Richard; Baynes, Alexander; Dortch, Joe; Parker-Pearson, Michael; Gilbert, M. Thomas P.; Holdaway, Richard N.; Willerslev, Eske; Bunce, Michael

2010-01-01

247

Personalized Privacy Preservation Xiaokui Xiao Yufei Tao  

E-print Network

methods focus on a universal approach that exerts the same amount of preservation for all persons, with discover the identities of all patients by joining the two tables on {Age, Sex, Zipcode}. These three at of all or part of this work for personal or classroom use is granted without fee provided that copies

Tao, Yufei

248

Personalized Privacy Preservation Xiaokui Xiao Yufei Tao  

E-print Network

approach that exerts the same amount of preservation for all persons, with- out catering for their concrete patients by joining the two tables on {Age, Sex, Zipcode}. These three at- tributes are, therefore of all or part of this work for personal or classroom use is granted without fee provided that copies

Tian, Qi

249

Books and Bytes: Preserving Documents for Posterity.  

ERIC Educational Resources Information Center

Describes some of the problems in documentation work rising from the habit of detaching information from any physical support, as a prevailing notion in an electronic environment. Points to the necessity of regarding information as something closely connected with preservation. Suggests a clearer distinction in information science between…

Larsen, Poul Steen

1999-01-01

250

Current Trends in Preservation Research and Development.  

ERIC Educational Resources Information Center

Overview of current trends in the preservation of library materials discusses collections conservation and management; climate control; insect and mold control; fire control; the effects of compact shelving; freezing and freeze-drying; space drying; alkaline paper; recycled paper; mass deacidification; and paper strengthening. (27 notes and…

Cunha, George Martin

1990-01-01

251

An automatic volume control for preserving intelligibility  

Microsoft Academic Search

A new method has been developed to adjust volume automatically on all audio devices equipped with at least one microphone, including mobile phones, personal media players, headsets, and car radios, that might be used in noisy environments, such as crowds, cars, and outdoors. The method uses a patented set of algorithms, implemented on the chips in such devices, to preserve

Franklin Felber

2011-01-01

252

Digital Preservation and the Cedars Project.  

ERIC Educational Resources Information Center

Defines and discusses strategies for digital preservation. Describes the United Kingdom's CURL (Consortium of University Research Libraries) exemplars in digital archives project "Cedars" led by the Universities of Oxford, Cambridge, and Leeds to address strategic, methodological, and practical issues, and to provide guidance in best practice for…

Russell, Kelly

1998-01-01

253

Revamping Family Preservation Services for Native Families.  

ERIC Educational Resources Information Center

Examines the philosophy and program structures of family preservation services (FPS) in the context of providing services to Native American families with child welfare issues. Explores Native cultural concepts of family, child rearing, time, and spirituality. Outlines cross-cultural training needs for FPS workers related to cultural awareness,…

Coleman, Heather; Unrau, Yvonne A.; Manyfingers, Brenda

2001-01-01

254

Archiving Innovations Preserve Essential Historical Records  

NASA Technical Reports Server (NTRS)

The Apollo 11 mission left on the Moon a silicon disc inscribed with microscopic recreations of messages from 73 countries. NanoArk Corporation of Fairport, New York, built on that NASA technology to develop a fire and water resistant archiving innovation that provides cost savings and security in preserving documents. Since its launch, NanoArk has grown from 2 to 10 employees.

2013-01-01

255

Privacy-Preserving Location-Based Services  

ERIC Educational Resources Information Center

Location-based services (LBS for short) providers require users' current locations to answer their location-based queries, e.g., range and nearest-neighbor queries. Revealing personal location information to potentially untrusted service providers could create privacy risks for users. To this end, our objective is to design a privacy-preserving

Chow, Chi Yin

2010-01-01

256

Coatings to reduce wood preservative leaching.  

PubMed

The efficiency of semitransparent penetrating stains to reduce leaching of wood preservative components was evaluated. Five commercial wood deck finishes were applied to untreated and chromated copper arsenate (CCA), alkaline copper quat (ACQ), and copper azole (CA) treated wood, and leachates were collected and analyzed during 3 years of natural weathering exposure in Toronto, Canada. All stains evaluated effectively reduced the cumulative leaching of all inorganic preservative components by about 60% on average. Although most coatings showed significant film degradation starting around 12 months, the reduced leaching persisted even after 3 years. This suggests that temporary protection of wood with a coating during the early stages of use resulted in long-term reduction in preservative leaching potential. A two-week screening leaching test was able to predict the long-term leaching performance of different coatings reasonably well. Cured coating glass transition temperature (Tg) and liquid coating viscosity were the most important variables affecting a leaching prediction model. To effectively reduce leaching of preservative components from treated wood, coatings should have Tg low enough to withstand stresses caused by freezing in winter and have adequate viscosity to form a barrier film layer on the wood surface. PMID:20704213

Nejad, Mojgan; Cooper, Paul

2010-08-15

257

Hearing Preservation in Cochlear Implant Surgery  

PubMed Central

In the past, it was thought that hearing loss patients with residual low-frequency hearing would not be good candidates for cochlear implantation since insertion was expected to induce inner ear trauma. Recent advances in electrode design and surgical techniques have made the preservation of residual low-frequency hearing achievable and desirable. The importance of preserving residual low-frequency hearing cannot be underestimated in light of the added benefit of hearing in noisy atmospheres and in music quality. The concept of electrical and acoustic stimulation involves electrically stimulating the nonfunctional, high-frequency region of the cochlea with a cochlear implant and applying a hearing aid in the low-frequency range. The principle of preserving low-frequency hearing by a “soft surgery” cochlear implantation could also be useful to the population of children who might profit from regenerative hair cell therapy in the future. Main aspects of low-frequency hearing preservation surgery are discussed in this review: its brief history, electrode design, principles and advantages of electric-acoustic stimulation, surgical technique, and further implications of this new treatment possibility for hearing impaired patients.

Sampaio, Andre Luiz Lopes; Lopes, Rafaela Aquino Fernandes; Ramos Venosa, Alessandra; de Oliveira, Carlos Augusto Costa Pires

2014-01-01

258

Anonymity-Preserving Location Data Publishing  

Microsoft Academic Search

The advances in wireless communication and positioning technology have made it possible to collect large volumes of personal location data. While such data are useful to many organizations, making them public accessible is generally prohibited, because location data may imply sensitive private information. This paper investigates the challenges of publishing location data while preserving the location privacy of data subjects.

Lingappa Girish; Ying Cai

2008-01-01

259

Is memory purely preservative?* Jrme Dokic  

E-print Network

1 Is memory purely preservative?* J�r�me Dokic (University of Rouen and CREA, Paris) In C. Hoerl & T. McCormack (eds), Time and Memory, Oxford: OUP. �1 Two forms of memory and Goethe's Problem Let us start with a familiar distinction between two forms of memory: episodic memory (remembering a thing

Paris-Sud XI, Université de

260

Natural Hypothermic Preservation: The Mammalian Hibernator  

Microsoft Academic Search

Hibernators offers a natural models of mammalian organs systems that can withstand long term hypothermia and ischemia. The biochemical mechanisms that regulate and stabilize metabolism to assure long term viability during torpor can be applied in methodologies that could improve the hypothermic preservation of human organs removed for transplant and substantially both the time that organs can be maintained in

Kenneth B. Storey

2002-01-01

261

Privacy Preserving Clustering , L. Kruger1  

E-print Network

heightened concerns of personal privacy [9, 49]. Web surfing, email, and other services constantly leak inforPrivacy Preserving Clustering S. Jha1 , L. Kruger1 , and P. McDaniel2 1 Computer Sciences. The freedom and transparency of information flow on the Internet has heightened concerns of privacy. Given

McDaniel, Patrick Drew

262

Digitizing Technologies for Preservation. SPEC Kit 214.  

ERIC Educational Resources Information Center

The Association of Research Libraries distributed a survey to its 119 member libraries to assess the use of state-of-the-art digital technologies as a preservation method. Libraries were asked to report detailed data on all projects designed specifically to: (1) enhance images of faded or brittle originals, (2) provide access to digital images…

Kellerman, L. Suzanne, Comp.; Wilson, Rebecca, Comp.

263

CABLE NETS FOR BAT HABITAT PRESERVATION  

Microsoft Academic Search

Cable-supported structures have been used in architectural and engineering practice for long spans, such as suspension bridges, and to cover large areas with a minimum of support columns, such as sports arenas and aviaries. Similarly, in bat habitat preservation in underground mines and caves, use of cable nets is particularly well adapted to large span, usually vertical, openings. Nets also

John A. Kretzmann

264

Biological photocathodes.  

PubMed Central

Biological surfaces emit electrons when subjected to UV light. This emission is increased greatly after exposure to cesium vapor. Increases from 2 to 3 orders of magnitude are observed, depending on the biochemicals present. Heme and chlorophyll exhibit unusually high photoemission currents, which are increased further after cesiation. Photoemission from proteins and lipids is much less but also is increased by exposure to cesium. The formation of photocathodes with cesium greatly increases the practical magnifications attainable in photoelectron microscopy of organic and biological specimens. Photoelectron micrographs taken at magnifications greater than or equal to X 100,000 of chlorophyll-rich thylakoid membranes and of colloidal gold-labeled cytoskeleton preparations of cultured epithelial cells demonstrate the improvement in magnification. The selectivity and stability of the photocathodes suggest the possibility of detecting chromophore binding proteins in membranes and the design of photoelectron labels for tagging specific sites on biological surfaces. Images PMID:2928305

Griffith, O H; Habliston, D L; Birrell, G B; Skoczylas, W P; Hedberg, K K

1989-01-01

265

BIOLOGY MINOR WORKSHEET REQUIRED BIOLOGY COURSES  

E-print Network

BIOLOGY MINOR WORKSHEET 2008-2013 REQUIRED BIOLOGY COURSES: BIOL 115N General Biology I 4 ________ BIOL 116N General Biology II 4 ________ Upon completion of BIOL 115N and BIOL 116N, the Biology Minor requires the successful completion of a minimum of 12 credit-hours of Biology coursework at the advanced

266

Biological rhythms  

NASA Technical Reports Server (NTRS)

An overview is given of basic features of biological rhythms. The classification of periodic behavior of physical and psychological characteristics as circadian, circannual, diurnal, and ultradian is discussed, and the notion of relativistic time as it applies in biology is examined. Special attention is given to circadian rhythms which are dependent on the adrenocortical cycle. The need for adequate understanding of circadian variations in the basic physiological indicators of an individual (heart rate, body temperature, systolic and diastolic blood pressure, etc.) to ensure the effectiveness of prophylactic and therapeutic measures is stressed.

Halberg, F.

1975-01-01

267

NASA Biological Specimen Repository  

NASA Technical Reports Server (NTRS)

The NASA Biological Specimen Repository (NBSR) was established in 2006 to collect, process, preserve and distribute spaceflight-related biological specimens from long duration ISS astronauts. This repository provides unique opportunities to study longitudinal changes in human physiology spanning may missions. The NBSR collects blood and urine samples from all participating ISS crewmembers who have provided informed consent. These biological samples are collected once before flight, during flight scheduled on flight days 15, 30, 60, 120 and within 2 weeks of landing. Postflight sessions are conducted 3 and 30 days after landing. The number of in-flight sessions is dependent on the duration of the mission. Specimens are maintained under optimal storage conditions in a manner that will maximize their integrity and viability for future research The repository operates under the authority of the NASA/JSC Committee for the Protection of Human Subjects to support scientific discovery that contributes to our fundamental knowledge in the area of human physiological changes and adaptation to a microgravity environment. The NBSR will institute guidelines for the solicitation, review and sample distribution process through establishment of the NBSR Advisory Board. The Advisory Board will be composed of representatives of all participating space agencies to evaluate each request from investigators for use of the samples. This process will be consistent with ethical principles, protection of crewmember confidentiality, prevailing laws and regulations, intellectual property policies, and consent form language. Operations supporting the NBSR are scheduled to continue until the end of U.S. presence on the ISS. Sample distribution is proposed to begin with selections on investigations beginning in 2017. The availability of the NBSR will contribute to the body of knowledge about the diverse factors of spaceflight on human physiology.

McMonigal, K. A.; Pietrzyk, R. A.; Sams, C. F.; Johnson, M. A.

2010-01-01

268

Preserving the Context of Science Data  

NASA Astrophysics Data System (ADS)

Preserving any type of digital information requires preserving both the "bits" comprising the information, and sufficient context (metadata) to support interpreting the bits in the future. Unfortunately, this context is often implicit or embedded in organizations (e.g., communities of practice) or artifacts (e.g., computing platforms) that are not as survivable as the information itself. Therefore, digital preservation must explicitly preserve context. Two necessary components of digital scientific information context are formats and provenance. Formats describe the syntax and low-level semantics of digital information objects (e.g., files). The library community has promulgated format registries (e.g, PRONOM, GDFR, digitalpreservation.gov) that allow archival objects to refer to format definitions using standardized persistent identifiers. Format registries maintain this context separately from the information that references it, but make no archival guarantees about the context's survival. Meanwhile, the scientific community has focused on capturing the provenance of scientific information, typically as a formal workflow specification of the processing steps that created the information. Unfortunately, there is as yet no standard for scientific workflows, nor any guarantee that a specification that can reproduce information is sufficient for understanding it. We describe new technologies that may prove a better fit for preserving scientific information context. The National Geospatial Digital Archive (NGDA) data model represents formats as archival objects containing specifications, software implementations, and other documentation. A format registry is simply an archive that happens to hold archival objects representing formats. Both format and provenance relationships are represented by typed references. Any archival object may reference any other object for its interpretation: the referenced object may be a "file format" object or an object containing dataset documentation, and may reside in the same archive or in another. Cross-archive references capture whole-archive dependencies (summarized by whole-archive descriptors located at the root of each archive), allowing us to describe the familiar situation of an entire archive referencing a format registry, or a source data center. We describe as a case study the archiving of the Earth science data records (ESDRs) being produced by the UCSB NASA-funded Ocean MEaSUREs project. The data's context includes complex formats, scientific literature, and software (both commercial and locally-developed). The data's provenance includes dependencies on multiple versions, parameter settings, and satellite data sources. By addressing how much context is required to preserve these data, we hope to begin to answer the question: What does it mean for a library to assume responsibility for a science dataset?

Janée, G.; Frew, J.

2008-12-01

269

Achieving convergence, causality preservation, and intention preservation in real-time cooperative editing systems  

Microsoft Academic Search

Real-time cooperative editing systems allow multiple users to view and edit the same text\\/graphic\\/image\\/multimedia document at the same time for multiple sites connected by communication networks. Consistency maintenance is one of the most significant challenges in designing and implementing real-time cooperative editing systems. In this article, a consistency model, with properties of convergence, causality preservation, and intention preservation, is proposed

Chengzheng Sun; Xiaohua Jia; Yanchun Zhang; Yun Yang; David Chen

1998-01-01

270

Biology Notes.  

ERIC Educational Resources Information Center

Presents information on the teaching of nutrition (including new information relating to many current O-level syllabi) and part 16 of a reading list for A- and S-level biology. Also includes a note on using earthworms as a source of material for teaching meiosis. (JN)

School Science Review, 1984

1984-01-01

271

Biological Photocathodes  

Microsoft Academic Search

Biological surfaces emit electrons when subjected to UV light. This emission is increased greatly after exposure to cesium vapor. Increases from 2 to 3 orders of magnitude are observed, depending on the biochemicals present. Heme and chlorophyll exhibit unusually high photoemission currents, which are increased further after cesiation. Photoemission from proteins and lipids is much less but also is increased

O. Hayes Griffith; Douglas L. Habliston; G. Bruce Birrell; Walter P. Skoczylas; Karen K. Hedberg

1989-01-01

272

Biological Semiconductors  

Cancer.gov

Fabrication using printing technologies of electrical percolation biological semiconductors (BSC) can facilitate assembly of numerous types of gates containing various ligands (e.g., antibodies, DNA, etc.) and can be used to assemble many of such gates on the same chip.

273

Marine Biology  

ERIC Educational Resources Information Center

A variety of informational material for a course in marine biology or oceanology at the secondary level is presented. Among the topics discussed are: food webs and pyramids, planktonic blooms, marine life, plankton nets, food chains, phytoplankton, zooplankton, larval plankton and filter feeders. (BT)

Dewees, Christopher M.; Hooper, Jon K.

1976-01-01

274

Medical Biology  

Microsoft Academic Search

G. B. H. HAS, I am glad to see, criticised effectively the syllabus of Elementary Biology put forth by the Conjoint Board (NATURE, vol. xlvii. p. 530). A less fortunate course of study could hardly have been devised. The students who take the course include a number whose previous education, energy and ambition are not sufficient to encourage them to

1893-01-01

275

Field Biology  

NSDL National Science Digital Library

This field biology class uses a service-learning project instead of a course term paper. The students worked with 4th and 5th graders at a local school to teach them skills in wildflower and fern identification, and then to help them implement a nature trail, which will be accessible to the greater community.

Course taught by Nancy Prentiss, University of Maine-Farmington, prentiss@maine.edu. Example compiled by Suzanne Savanick, Science Education Resource Center, ssavanic@carleton.edu.

276

(Biological dosimetry)  

SciTech Connect

The traveler attended the 1st International Conference on Biological Dosimetry in Madrid, Spain. This conference was organized to provide information to a general audience of biologists, physicists, radiotherapists, industrial hygiene personnel and individuals from related fields on the current ability of cytogenetic analysis to provide estimates of radiation dose in cases of occupational or environmental exposure. There is a growing interest in Spain in biological dosimetry because of the increased use of radiation sources for medical and occupational uses, and with this the anticipated and actual increase in numbers of overexposure. The traveler delivered the introductory lecture on Biological Dosimetry: Mechanistic Concepts'' that was intended to provide a framework by which the more applied lectures could be interpreted in a mechanistic way. A second component of the trip was to provide advice with regard to several recent cases of overexposure that had been or were being assessed by the Radiopathology and Radiotherapy Department of the Hospital General Gregorio Maranon'' in Madrid. The traveler had provided information on several of these, and had analyzed cells from some exposed or purportedly exposed individuals. The members of the biological dosimetry group were referred to individuals at REACTS at Oak Ridge Associated Universities for advice on follow-up treatment.

Preston, R.J.

1990-12-17

277

Biological Warfare  

NSDL National Science Digital Library

The following Web sites offer reliable information resources addressing biological warfare and related issues. The first Web site, from the Mayo Clinic, provides a brief overview of the agents commonly used in biological and chemical warfare -- such as anthrax, tularemia, and ricin (1). Links to related Mayo or CDC Web pages are also provided for further information. The next site contains a collection of articles on bioterrorism and bioweapons from the science news magazine NewScientist, spanning a range of about 4 years (2). Geneticists have determined which genes code for virulence in anthrax bacteria; the online version of Scientific American offers a recent article on this discovery (3). The Genetics Learning Center at the Eccles Institute of Human Genetics (University of Utah) takes a look a common misconceptions about biological warfare and provides and interesting overview of biological warfare programs in the US and beyond (4). The site also introduces Dark Winter, a fictional smallpox attack scenario staged by a collaboration of research organizations in June of 2001. Readers can find out more about Dark Winter in the following Web site from the Center for Civilian Biodefense Studies at John Hopkins University, one of the participating organizations (5). Biosecurity and Bioterrorism, a recently launched quarterly peer-reviewed journal, may be accessed online for free (6). The journal offers "multidisciplinary analyses and a vigorous exchange of perspectives that are essential to the formulation and implementation of successful strategies to diminish the threat of bioweapons." The last two sites are from MEDLINEplus, offering detailed information and numerous links of biological (7) and chemical (8) warfare.

Sohmer, Rachel.

2003-01-01

278

Biological diversity, soils, and economics  

SciTech Connect

Terrestrial biological diversity is supported by solar energy captured by plants growing in soil. This soil-based plant productivity also provides the foundation for human societies through production of food and renewable forms of energy. Variations in plant productivity, resulting from differences in inherent soil fertility, variations in climate and weather, and differences in chemical inputs and agricultural practices, produce patterns of biological diversity that are associated with the agricultural component of economic productivity. Ecological processes lead to a generally negative relation between the diversity of plant species and potential agricultural productivity at both local and global scales. One implication of this negative relation is that preservation of areas of high plant biodiversity does not require the sacrifice of productive agricultural lands.

Huston, M. (Oak Ridge National Laboratory, TN (United States))

1993-12-10

279

Preservation of cycad and Ginkgo pollen  

USGS Publications Warehouse

Pollen grains of Ginkgo, Cycas, and Encephalartos were chemically treated together with pollen of Quercus, Alnus, and Pinus, the latter three genera being used as standards. The experiments showed that: (1) boiling the pollen for 8-10 hours in 10% KOH had little if any effect on any of the grains; (2) lengthy acetolysis treatment produced some degradation or corrosion, particularly in Ginkgo and Cycas, but the grains of even these genera remained easily recognizable; (3) oxidation with KMnO4 followed by H2O2 showed that pollen of Ginkgo, Cycas, and Encephalartos remains better preserved than that of Quercus and Alnus, and although Ginkgo and Encephalartos probably are slightly less resistant to oxidation than Pinus, no great differences exists between these monosulcate types and Pinus. Thus the experiments show that, at least for sediments low in bacteria, cycad and Ginkgo pollen should be well represented in the fossil record as far as their preservational capabilities are concerned. ?? 1978.

Frederiksen, N. O.

1978-01-01

280

Geology Fieldnotes: Mojave National Preserve, California  

NSDL National Science Digital Library

Visitors can access information on the geology of the Mojave National Preserve in California. Features include a field trip describing areas of interest at the preserve, as well as a geologic time scale describing the history and development of the area. There are discussions of the formation and history of the present day playa lakes, the underlying Paleozoic limestone and dolomite, and the formation of Mitchell Caverns. Other topics include eolian activity and resulting features in the Kelso Dunes National Natural Landmark and the Devil's Playground, and the role of granitic and metamorphic rock in the formation of pediments. There is also a geologic map of the area and links to maps and technical papers.

281

Bacteriocin: safest approach to preserve food products  

Microsoft Academic Search

Start of the 21st century with its universal call to feed the hungry is an appropriate time to refocus attention on food security\\u000a and especially the impact of biopatenting on poor communities who are the primary victims of hunger in our world. Antibacterial\\u000a metabolites of lactic acid bacteria and Bacillus spp have potential as natural preservatives to control the growth

Neha Gautam; Nivedita Sharma

2009-01-01

282

Working Group Proposed to Preserve Archival Records  

NASA Astrophysics Data System (ADS)

The AAS and AIP co-hosted a Workshop in April 2012 with NSF support (AST-1110231) that recommends establishing a Working Group on Time Domain Astronomy (WGTDA) to encourage and advise on preserving historical observations in a form meaningful for future scientific analysis. Participants specifically considered archival observations that could describe how astronomical objects change over time. Modern techniques and increased storage capacity enable extracting additional information from older media. Despite the photographic plate focus, other formats also concerned participants. To prioritize preservation efforts, participants recommended considering the information density, the amount of previously published data, their format and associated materials, their current condition, and their expected deterioration rate. Because the best digitization still produces an observation of an observation, the originals should be retained. For accessibility, participants recommended that observations and their metadata be available digitally and on-line. Standardized systems for classifying, organizing, and listing holdings should enable discovery of historical observations through the Virtual Astronomical Observatory. Participants recommended pilot projects that produce scientific results, demonstrate the dependence of some advances on heritage data, and open new avenues of exploration. Surveying a broad region of the sky with a long time-base and high cadence should reveal new phenomena and improve statistics for rare events. Adequate financial support is essential. While their capacity to produce new science is the primary motivation for preserving astronomical records, their potential for historical research and citizen science allows targeting cultural institutions and other private sources. A committee was elected to prepare the WGTDA proposal. The WGTDA executive committee should be composed of ~10 members representing modern surveys, heritage materials, data management, data standardization and integration, follow-up of time-domain discoveries, and virtual observatories. The Working Group on the Preservation of Astronomical Heritage Web page includes a full report.

Bartlett, Jennifer L.

2013-01-01

283

[Organ-preserving therapy for penile carcinoma].  

PubMed

In recent years, a definite change towards organ-sparing, reconstructive local treatment of penile cancer has been observed. Surgical treatment aims to achieve margin-free resections with risk-adapted much smaller safety margins. Thus, the penile structures are preserved as far as possible or reconstructed in order to achieve a functionally and cosmetically satisfactory result. The oncological safety concerning tumor-free survival is not compromised. However, a higher rate of local recurrences has to be accepted. PMID:25154480

Hakenberg, O W; Protzel, C

2014-09-01

284

Cryogenic preservation of fish and mammalian spermatozoa  

Microsoft Academic Search

Summary. Various combinations of sucrose, reduced glutathione and potassium bi- carbonate were tested for the cryogenic preservation of salmon spermatozoa. When a fast freezing procedure was followed, the extender that gave the best results was composed of 1 part ofdimethyl sulphoxide (DMSO), as a protective agent, and 7 parts of a medium containing 125 mM-sucrose, 6.50 mM-reduced glutathione and 100

M. S. Mounib

1978-01-01

285

Efficient Privacy Preserving K-Means Clustering  

Microsoft Academic Search

\\u000a This paper introduces an efficient privacy-preserving protocol for distributed K-means clustering over an arbitrary partitioned\\u000a data, shared among N parties. Clustering is one of the fundamental algorithms used in the field of data mining. Advances in data acquisition methodologies\\u000a have resulted in collection and storage of vast quantities of user’s personal data. For mutual benefit, organizations tend\\u000a to share their

Maneesh Upmanyu; Anoop M. Namboodiri; Kannan Srinathan; C. V. Jawahar

2010-01-01

286

Preserving Video Quality in IPTV Networks  

Microsoft Academic Search

Growing numbers of service providers are implementing video services over IP networks, and discovering the unique challenges of providing a high quality-of-experience (QoE) to subscribers. Delivering consistent QoE in packet-switched networks can be a complex proposition due to the high sensitivity of video traffic to packet loss, as well as to delay and jitter. Preserving video quality in IP Television

Javed Asghar; F. Le Faucheur; I. Hood

2009-01-01

287

Preserving coherence in Rydberg quantum bits.  

PubMed

The effectiveness of decoherence suppression schemes is explored using quantum bits (qubits) stored in Li np Rydberg states. Following laser excitation, pulsed electric fields coherently control the electronic spin-orbit coupling, facilitating qubit creation, manipulation, and measurement. Spin-orbit coupling creates an approximate decoherence-free subspace for extending qubit storage times. However, sequences of fast NOT operations are found to be substantially more effective for preserving coherence. PMID:16907558

Minns, R S; Kutteruf, M R; Zaidi, H; Ko, L; Jones, R R

2006-07-28

288

Preserved Network Metrics across Translated Texts  

NASA Astrophysics Data System (ADS)

Co-occurrence language networks based on Bible translations and the Universal Declaration of Human Rights (UDHR) translations in different languages were constructed and compared with random text networks. Among the considered network metrics, the network size, N, the normalized betweenness centrality (BC), and the average k-nearest neighbors, knn, were found to be the most preserved across translations. Moreover, similar frequency distributions of co-occurring network motifs were observed for translated texts networks.

Cabatbat, Josephine Jill T.; Monsanto, Jica P.; Tapang, Giovanni A.

2014-09-01

289

Riverscape and groundwater preservation: a choice experiment.  

PubMed

This study presents a quantitative approach to support policy decision making for the preservation of riverscapes, taking into account the EC Water Framework Directive (2000/60/EC) and the EC Nitrates Directive (91/676/EEC) concerning the protection of waters against nitrate pollution from agricultural sources. A choice experiment was applied to evaluate the benefits, as perceived by inhabitants, of the implementation of policies aiming to reduce the concentration of nitrates in groundwater, preserve the riverscape by maintaining a minimum water flow and increasing hedges and woods along the Serio River in central northern Italy. Findings suggested that people were particularly concerned about groundwater quality, probably because it is strongly linked to human health. Nevertheless, it was interesting to observe that people expressed a high willingness to pay for actions that affect the riverscape as a whole (such as the minimum water flow maintenance plus reforestation). This is probably due to the close connection between the riverscape and the functions of the river area for recreation, health purposes, and biodiversity preservation. PMID:24085155

Tempesta, T; Vecchiato, D

2013-12-01

290

Fertility preservation in women with cancer.  

PubMed

Enhanced long-term survival rates of young women with cancer and advances in reproductive medicine and cryobiology have culminated in an increased interest in fertility preservation methods in girls and young women with cancer. Present data suggest that young patients with cancer should be referred for fertility preservation counselling quickly to help with their coping process. Although the clinical application of novel developments, including oocyte vitrification and oocyte maturation in vitro, has resulted in reasonable success rates in assisted reproduction programmes, experience with these techniques in the setting of fertility preservation is in its infancy. It is hoped that these and other approaches, some of which are still regarded as experimental (eg, ovarian tissue cryopreservation, pharmacological protection against gonadotoxic agents, in-vitro follicle growth, and follicle transplantation) will be optimised and become established within the next decade. Unravelling the complex mechanisms of activation and suppression of follicle growth will not only expand the care of thousands of women diagnosed with cancer, but also inform the care of millions of women confronted with reduced reproductive fitness because of ageing. PMID:25283571

De Vos, Michel; Smitz, Johan; Woodruff, Teresa K

2014-10-01

291

Preservation of samples for dissolved mercury  

SciTech Connect

Water samples for dissolved mercury require special treatment because of the high chemical mobility and volatility of this element. Widespread use of mercury and its compounds has provided many avenues for contamination of water. Two laboratory tests were done to determine the relative permeabilities of glass and plastic sample bottles to mercury vapor. Plastic containers were confirmed to be quite permeable to airborne mercury, glass containers were virtually impermeable. Methods of preservation include the use of various combinations of acids, oxidants, and complexing agents. The combination of nitric acid and potassium dichromate successfully preserved mercury in a large variety of concentrations and dissolved forms. Because this acid-oxidant preservative acts as a sink for airborne mercury and plastic containers are permeable to mercury vapor, glass bottles are preferred for sample collection. To maintain a healthy work environment and minimize the potential for contamination of water samples, mercury and its compounds are isolated from the atmosphere while in storage. Concurrently, a program to monitor environmental levels of mercury vapor in areas of potential contamination is needed to define the extent of mercury contamination and to assess the effectiveness of mercury clean-up procedures.

Hamlin, S.N. (Geological Survey, Sacramento, CA (United States))

1989-04-01

292

Mass preserving registration for lung CT  

NASA Astrophysics Data System (ADS)

In this paper, we evaluate a novel image registration method on a set of expiratory-inspiratory pairs of computed tomography (CT) lung scans. A free-form multi resolution image registration technique is used to match two scans of the same subject. To account for the differences in the lung intensities due to differences in inspiration level, we propose to adjust the intensity of lung tissue according to the local expansion or compression. An image registration method without intensity adjustment is compared to the proposed method. Both approaches are evaluated on a set of 10 pairs of expiration and inspiration CT scans of children with cystic fibrosis lung disease. The proposed method with mass preserving adjustment results in significantly better alignment of the vessel trees. Analysis of local volume change for regions with trapped air compared to normally ventilated regions revealed larger differences between these regions in the case of mass preserving image registration, indicating that mass preserving registration is better at capturing localized differences in lung deformation.

Gorbunova, Vladlena; Lo, Pechin; Loeve, Martine; Tiddens, Harm A.; Sporring, Jon; Nielsen, Mads; de Bruijne, Marleen

2009-02-01

293

Fertility Preservation for Cancer Patients: A Review  

PubMed Central

Infertility can arise as a consequence of treatment of oncological conditions. The parallel and continued improvement in both the management of oncology and fertility cases in recent times has brought to the fore-front the potential for fertility preservation in patients being treated for cancer. Oncologists must be aware of situations where their treatment will affect fertility in patients who are being treated for cancer and they must also be aware of the pathways available for procedures such as cryopreservation of gametes and/or embryos. Improved cancer care associated with increased cure rates and long term survival, coupled with advances in fertility treatment means that it is now imperative that fertility preservation is considered as part of the care offered to these patients. This can only be approached within a multidisciplinary setting. There are obvious challenges that still remain to be resolved, especially in the area of fertility preservation in prepubertal patients. These include ethical issues, such as valid consent and research in the area of tissue retrieval, cryopreservation, and transplantation. PMID:20379357

Ajala, Tosin; Rafi, Junaid; Larsen-Disney, Peter; Howell, Richard

2010-01-01

294

Degradation of Wood Preservatives by Fungi  

PubMed Central

Wood-inhabiting fungi, not necessarily responsible for major decay, are shown to be capable of degrading a toxic compound into a less potent form, thus rendering it less effective in protecting wood from decay by less-tolerant basidiomycetous wood-destroyers. Sweetgum or pine sapwood blocks treated with preservatives (ammoniacal copper arsenate, fluor-chrome-arsenate-dinitrophenol, a creosote or pentachlorophenol) were exposed progressively to two different wood-inhabiting fungi with sterilization between the first and second exposure. The fungus in the first exposure was usually an Ascomycete or a Fungi Imperfecti—Chaetomium globosum, Phoma, Orbicula, Graphium, Pestalozzia, or Trichoderma species, isolated from wood below the ground. In one experiment, the fungus in the first exposure was a basidiomycete, Lenzites trabea or Polyporus versicolor. The second fungus, a prominent Basidiomycete—Coniophora puteana, Lentinus lepideus, or Lenzites trabea—was the bioassay fungus, since its purpose was to show whether the first fungus had degraded the preservative. Generally, the treated block, except where exposed to another fungus, remained virtually untouched by the bioassay fungus. Clearly, therefore, the first fungus had rendered the preservative ineffective but without appreciably decaying the wood itself Chemical analyses of treated blocks indicated that in the first exposure the fungi had substantially depleted sodium arsenate and pentachlorophenol. PMID:16349644

Duncan, Catherine G.; Deverall, Flora J.

1964-01-01

295

Fertility preservation for breast cancer patients.  

PubMed

Breast cancer is the most common neoplasm in women and accounts for 26% (182,460) of all new cancer cases among women. With the use of screening mammography and advancement in other diagnostic modalities, many cases of breast cancer now can be diagnosed and treated at early stages of the disease. Unfortunately, adjuvant chemotherapy regimens commonly used in the treatment of breast cancer may cause premature ovarian failure due to their cytotoxic effects on the germ cells in the ovary. Therefore preservation of fertility in breast cancer survivors at reproductive age has become an important quality of life issue. Fertility preservation is a recently emerged field of reproductive medicine that may help protect the reproductive capability of the cancer survivors and allow them to have children in the future. Embryo freezing is the most established fertility preservation strategy. But conventional ovarian stimulation protocols are contraindicated in breast cancer patients because of the rise of estrogen and its metabolites to supraphysiological levels. Recently developed ovarian stimulation protocols with aromatase inhibitor letrozole and tamoxifen appear to provide a safe stimulation with endogenous estrogen levels comparable with those achieved in the natural cycle. Oocyte freezing can be considered in single women and in those who do not wish donor sperm. Ovarian tissue freezing could also be an option in breast cancer patients who do not wish or have a time for an in vitro fertilization cycle, which requires 10 to 14 days of ovarian stimulation. PMID:19806518

Oktem, Ozgur; Oktay, Kutluk

2009-11-01

296

Amber: Using "Tree Tears Turned to Stone" to Teach Biology, Ecology, and More!  

NSDL National Science Digital Library

Amber is a fossil by itself, and can also contain plants and animals that lived millions of years ago. Some of these perfectly preserved specimens give scientists a convenient window to past environments, including the biology, ecology, geology, and chemi

Wandersee, James H.; Clary, Renee M.

2009-11-01

297

Biological Remediation  

NSDL National Science Digital Library

This week's Topic In Depth focuses on the use of biological organisms to reduce environmental contamination.From the US Geological Survey, the first site (1) is a general introduction to bioremediation and includes links to several examples of successful bioremediation projects. Next (2) is a glossary of terms related to biological remediation. The third site is an educational resource (3) developed to teach high school students about environmental contamination and the use of plants to remove pollutants. The Bioremediation Discussion Group (4) includes a useful "archive of technical papers on bioremediation." The next two Web sites are specific to the process of phytoremediation, which uses plants to remediate contamination (5) (6 ). The next site (7) gives an example of an application using microbes from chicken compost to reduce air pollution. Lastly, this fact sheet (8) from the Ohio State University Extension Service focuses on bioremediation specific to wastewater treatment.

Lee, Amy.

2002-01-01

298

IKK Biology  

PubMed Central

Summary The inhibitor of nuclear factor-?B (I?B) kinase (IKK) complex is the master regulator of the NF-?B signaling pathway. The activation of the IKK complex is a tightly regulated, highly stimulus-specific, and target-specific event that is essential for the plethora of functions attributed to NF-?B. More recently, NF-?B independent roles of IKK members have brought increased complexity to its biological function. This review highlights some of the major advances in the studies of the process of IKK activation and the biological roles of IKK family members, with a focus on NF-?B independent functions. Understanding these complex processes is essential for targeting IKK for therapeutics. PMID:22435559

Liu, Fei; Xia, Yifeng; Parker, Aaron S.; Verma, Inder M.

2012-01-01

299

Could Your Job Help Preserve Your Aging Brain?  

MedlinePLUS

... on this page, please enable JavaScript. Could Your Job Help Preserve Your Aging Brain? Mentally stimulating work ... Seniors' Health THURSDAY, Nov. 20, 2014 (HealthDay News) -- Jobs requiring intellectually challenging tasks may help preserve thinking ...

300

10 CFR 1303.115 - Preservation of records.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 2010-01-01 false Preservation of records. 1303.115 Section 1303.115 Energy NUCLEAR WASTE TECHNICAL REVIEW BOARD PUBLIC INFORMATION AND REQUESTS § 1303.115 Preservation of records. The Board...

2010-01-01

301

38 CFR 1.952 - Preservation of evidence.  

Code of Federal Regulations, 2011 CFR

...Section 1.952 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS GENERAL PROVISIONS Referrals to Gao, Department of Justice, Or Irs § 1.952 Preservation of evidence. VA must take care to preserve all files...

2011-07-01

302

38 CFR 1.952 - Preservation of evidence.  

Code of Federal Regulations, 2010 CFR

...Section 1.952 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS GENERAL PROVISIONS Referrals to Gao, Department of Justice, Or Irs § 1.952 Preservation of evidence. VA must take care to preserve all files...

2010-07-01

303

Technical Bulletin Number 6 Aquaculture within Aquatic Preserves  

E-print Network

Facts · Forty-one Aquatic Preserves are found along Florida's coasts and freshwater streams. · Seven Preserve man- agement are adopted by the Board of Trustees of the Inter- nal Improvement Trust Fund

Florida, University of

304

PhD Dissertation Privacy Preserving Enforcement of Sensitive Policies  

E-print Network

PhD Dissertation Privacy Preserving Enforcement of Sensitive Policies in Outsourced and Distributed of Trento, Italy Privacy Preserving Enforcement of Sensitive Policies in Outsourced and Distributed and distributed environments are cloud computing and opportunistic networks, respectively. In this dissertation

305

14 CFR 136.9 - Life preservers for over water.  

Code of Federal Regulations, 2012 CFR

14 Aeronautics and Space 3 2012-01-01 2012-01-01... Life preservers for over water. 136.9 Section 136.9 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Life preservers for over water. (a) Except as...

2012-01-01

306

14 CFR 136.9 - Life preservers for over water.  

Code of Federal Regulations, 2013 CFR

14 Aeronautics and Space 3 2013-01-01 2013-01-01... Life preservers for over water. 136.9 Section 136.9 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Life preservers for over water. (a) Except as...

2013-01-01

307

14 CFR 136.9 - Life preservers for over water.  

14 Aeronautics and Space 3 2014-01-01 2014-01-01... Life preservers for over water. 136.9 Section 136.9 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Life preservers for over water. (a) Except as...

2014-01-01

308

14 CFR 136.9 - Life preservers for over water.  

Code of Federal Regulations, 2011 CFR

14 Aeronautics and Space 3 2011-01-01 2011-01-01... Life preservers for over water. 136.9 Section 136.9 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Life preservers for over water. (a) Except as...

2011-01-01

309

14 CFR 136.9 - Life preservers for over water.  

Code of Federal Regulations, 2010 CFR

14 Aeronautics and Space 3 2010-01-01 2010-01-01... Life preservers for over water. 136.9 Section 136.9 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Life preservers for over water. (a) Except as...

2010-01-01

310

Variant of Usher Syndrome Gene Preserves Vision and Balance  

MedlinePLUS

... preserves vision and balance Variant of Usher Syndrome Gene Preserves Vision and Balance Usher syndrome, an inherited, ... mutant copy of any one of several different genes. But surprisingly, some mutations of the same genes ...

311

Quaternary privacy-levels preservation in computer forensics investigation process  

Microsoft Academic Search

Privacy preservation and computer forensics investigation are two contradictory information security directions. The privacy preservation principle stress on utmost protection of users privacy as privacy is a right, whereas computer forensics investigation attempts to unearth user data for possible digital evidences hidden within them. Although, a number of research efforts have been directed towards privacy preservation during forensics investigation process

Waleed Halboob; Muhammad Abulaish; Khaled S. Alghathbar

2011-01-01

312

Automating Preservation Management in the ARL Libraries. SPEC Kit 198.  

ERIC Educational Resources Information Center

In the fall of 1993, the Association of Research Libraries (ARL) Office of Management Services conducted a survey to determine the status of automation activities within preservation departments in member libraries. The survey was sent to 68 ARL libraries that have established preservation departments under the management of a preservation

Brennan, Patricia, Comp.; Reed-Scott, Jutta, Comp.

313

Research on Privacy Preserving Data in Web Log Mining  

Microsoft Academic Search

Researches on preserving private data in the application of web data mining possess practical value. Through introducing basic concepts of web log mining and private data protection, this paper analyzes the status quo of privacy preservation in web log mining, and then it puts forward privacy preserving mining model based on evolutionary algorithm of cloud model, combining with evolutionary algorithm

Chang-bin Jiang; Li Chen

2010-01-01

314

Practical and Privacy-Preserving Policy Compliance for Outsourced Data  

E-print Network

Practical and Privacy-Preserving Policy Compliance for Outsourced Data Giovanni Di Crescenzo1 and helping both other parties. In this scenario, a natural problem is that of designing efficient and privacy-preserving-management systems can use privacy-preserving data-retrieval protocols that allow users to submit queries and receive

Feigenbaum, Joan

315

Privacy Preserving Similarity Evaluation of Time Series Data  

E-print Network

Privacy Preserving Similarity Evaluation of Time Series Data Haohan Zhu Department of Computer@cs.bu.edu ABSTRACT Privacy preserving issues of time series databases in finan- cial, medical and transportation.3 [Clustering]: Similarity measures Keywords Time Series Database, Similarity, Privacy Preserving (c) 2014

Kollios, George

316

A Card Requirements Language Enabling Privacy-Preserving Access Control  

E-print Network

A Card Requirements Language Enabling Privacy-Preserving Access Control Jan Camenisch, Sebastian M,smo,nev,frp,dso}@zurich.ibm.com January 2010 Abstract We address the problem of privacy-preserving access control in distributed systems language that allows for expressing access control requirements in a privacy-preserving way. Our language

Mödersheim, Sebastian

317

Secure Binary Embeddings for Privacy Preserving Nearest Neighbors  

E-print Network

, with the advent of social networking, internet based storage of user data, and cloud computing, privacy-preservingSecure Binary Embeddings for Privacy Preserving Nearest Neighbors Petros Boufounos and Shantanu to perform privacy-preserving nearest neighbor search with significantly lower complexity compared

Boufounos, Petros T.

318

Revised July 2008 4-H Food Preservation Record  

E-print Network

sugar, freezer) Freezing (fruit, vegetable, meal, main dish) New Skills I Learned in Food Preservation4-H 933R Revised July 2008 4-H Food Preservation Record Name _________________________________ Boy. Revised July 2008. What I Did in Food Preservation (Check all that apply.) Boiling Water Canning (fruit

Tullos, Desiree

319

Preservation of Electronic Scholarly Publishing: An Analysis of Three Approaches  

ERIC Educational Resources Information Center

Scholars publish in journals to preserve their work and to make sure that it is available for current and future researchers. More and more of this publishing is done in electronic format. Libraries, the institutions that have traditionally overseen the preservation of print publications, are now struggling with the preservation of digital…

Honey, Sadie L.

2005-01-01

320

Selection for Preservation in the Digital Age: An Overview.  

ERIC Educational Resources Information Center

Considers whether conversion to digital form is a preservation action, the contrasts between selection for digital conversion and selection for traditional preservation, and the potential effects on the field of preservation. Topics include value and demand; intellectual property rights; added value; and costs. (LRW)

Gertz, Janet

2001-01-01

321

Video Preservation and Digital Reformatting: Pain and Possibility  

ERIC Educational Resources Information Center

The digital library community is increasingly concerned with long-term preservation of digital materials. This concern presents an opportunity for strategic alliances between digital library units and preservation departments confronting the difficulties inherent in preservation reformatting of moving image materials. However, successful…

McDonough, Jerome; Jimenez, Mona

2006-01-01

322

Walking intensity for postmenopausal bone mineral preservation and accrual  

Microsoft Academic Search

Introduction: Mechanical stresses on the bone are an important aspect of physical activity that promotes bone preservation and increases in bone mass. Exercise intensities leading to bone preservation and accrual have not been adequately defined for humans in general, and postmenopausal women in particular. Materials and methods: To quantify parameters of effective walking intensity for preservation and accrual of bone

Katarina T. Borer; Katrina Fogleman; Melissa Gross; Donald Dengel

2007-01-01

323

Methanol fixation of plant tissue for Scanning Electron Microscopy improves preservation of tissue morphology and dimensions  

PubMed Central

Background It is well known that preparation of biological (plant and animal) tissues for Scanning Electron Microscopy (SEM) by chemical fixation and critical point drying results in shrinkage of tissues, often by up to 20-30%, depending on the tissue type and fixation protocol used. We sought to identify a protocol that would preserve tissue size and morphology better than standard chemical fixatives and dehydration regimes. We compared a range of processing techniques by quantifying changes in tissue size and recording details of surface morphology using leaf tissues from three commonly studied species; Arabidopsis thaliana, barley and cotton. Results All processing protocols altered tissue dimensions. Methanol fixation and dehydration, followed by a further short (1 h) dehydration step in ethanol and critical point drying (which was based on a previously published method), preserved tissue dimensions most consistently of all protocols tested, although it did cause 8% shrinkage in all three species. This protocol was also best for preservation of surface morphology in all three species. We outline a recommended protocol and advise that the method is best trialled for different tissues, especially thicker or larger samples. Conclusions This study shows that simultaneous fixation and dehydration in methanol followed by ethanol results in better preservation of dimensions and morphology of critical point dried plant tissues than other fixation and dehydration procedures. It is a quick and simple method, and requires standard SEM preparation equipment. PMID:24083940

2013-01-01

324

Dear Colleague Letter - Biology  

NSF Publications Database

... Biology, Integrative Biology & Neuroscience and Molecular & Cellular Biosciences are January 10 and ... January 9* & July 9* Integrative Biology & Neuroscience January 12* & July 12* Molecular & Cellular ...

325

Non-Markovian environments and entanglement preservation  

SciTech Connect

Using the Shabani-Lidar post-Markovian master equation, we derive non-Markovian generalizations of important quantum decohering operations on single qubits. When environmental memory effects are being taken into account, both single-qubit coherence and two-qubit entanglement may be preserved over a longer period of time, in contrast to the corresponding situations where these are totally neglected. We argue that recognizing the fact that every environment is inherently non-Markovian could be the key to the resolution of the issue of entanglement sudden death.

Tan, Jackson; Kyaw, Thi Ha; Yeo, Ye [Department of Physics, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260 (Singapore)

2010-06-15

326

The preservation of gonococci in liquid nitrogen  

PubMed Central

Gonococci suspended in 1% proteose peptone containing 8% glycerol can be snap frozen in liquid nitrogen without detectable loss on thawing. This recovery rate has allowed the use of frozen organisms as the starting inoculum for the bulk growth of gonococci and to preserve gonococci both in urethral pus and after primary subculture for use in studies on gonococcal virulence. The method described for freezing urethral pus on charcoal swabs should make it possible to transport infected specimens from areas lacking adequate laboratory facilities. PMID:4994566

Ward, M. E.; Watt, P. J.

1971-01-01

327

Preserving Semantics in Automatically Created Ontology Alignments  

NASA Astrophysics Data System (ADS)

In an open world such as the Internet, one of the most challenging tasks is ontology alignment, which is the process of finding relationships among their elements. Performing this work in an automated fashion is, however, subject to errors, because of the different semantics carried by the same concept in different application domains or because of different ontology design styles which often produce incompatible ontology structures. In this chapter, we relate the most important approaches to ontology mapping revision, proposing a revision technique which aims at preserving the semantics of the original ontologies.

Orsi, Giorgio; Tanca, Letizia

328

A wood preservative metabolite in river water.  

PubMed

A previously unknown pollutant in river water was identified to be 2-mercaptobenzothiazole (2-MBT) by interpretation and simulation of its GC/LRMS spectrum. Further GC/HRMS measurement of the isotope composition of the molecular ion verified this structure. 2-MBT is a well-known agent for corrosion inhibition and a stable metabolite of several other benzothiazoles. The present 2-MBT trace was most probably a metabolite of the wood preservative TCMTB which leaked from an upstream sawmill. The metabolite had been detected earlier in urine of the sawmill workers, but now was identified in the recipient water environment for the first time. PMID:15768735

Khoroshko, Larisa O; Petrova, Varvara N; Viktorovskii, Igor V; Lahtiperä, Mirja; Sinkkonen, Seija; Paasivirta, Jaakko

2005-01-01

329

Accidental poisoning with biodiesel preservative biocide  

PubMed Central

Although biodiesel fuels’ use is getting more and more popular, there are only few reports in the literature of poisoning with such agents, and none referring to their preservatives: biocides. We present the management of a 49-year-old Caucasian male who was admitted, after accidental ingestion of biocide solution, in the intensive care unit of a tertiary hospital. In spite of his devastating condition upon arrival to the hospital, he had a remarkable recovery with no local or systemic sequel due to multidisciplinary and early supportive approach of his care. PMID:25336882

Aslanidis, T; Ourailoglou, V; Boultoukas, E; Giannakou-Peftoulidou, M

2014-01-01

330

Specimen Sample Preservation for Cell and Tissue Cultures  

NASA Technical Reports Server (NTRS)

The era of the International Space Station with its longer duration missions will pose unique challenges to microgravity life sciences research. The Space Station Biological Research Project (SSBRP) is responsible for addressing these challenges and defining the science requirements necessary to conduct life science research on-board the International Space Station. Space Station will support a wide range of cell and tissue culture experiments for durations of 1 to 30 days. Space Shuttle flights to bring experimental samples back to Earth for analyses will only occur every 90 days. Therefore, samples may have to be retained for periods up to 60 days. This presents a new challenge in fresh specimen sample storage for cell biology. Fresh specimen samples are defined as samples that are preserved by means other than fixation and cryopreservation. The challenge of long-term storage of fresh specimen samples includes the need to suspend or inhibit proliferation and metabolism pending return to Earth-based laboratories. With this challenge being unique to space research, there have not been any ground based studies performed to address this issue. It was decided hy SSBRP that experiment support studies to address the following issues were needed: Fixative Solution Management; Media Storage Conditions; Fresh Specimen Sample Storage of Mammalian Cell/Tissue Cultures; Fresh Specimen Sample Storage of Plant Cell/Tissue Cultures; Fresh Specimen Sample Storage of Aquatic Cell/Tissue Cultures; and Fresh Specimen Sample Storage of Microbial Cell/Tissue Cultures. The objective of these studies was to derive a set of conditions and recommendations that can be used in a long duration microgravity environment such as Space Station that will permit extended storage of cell and tissue culture specimens in a state consistent with zero or minimal growth, while at the same time maintaining their stability and viability.

Meeker, Gabrielle; Ronzana, Karolyn; Schibner, Karen; Evans, Robert

1996-01-01

331

Bomb Pulse Biology  

PubMed Central

The past decade has seen an explosion in use of the 14C bomb-pulse to do fundamental cell biology. Studies in the 1960’s used decay counting to measure tissue turnover when the atmospheric 14C/C concentration was changing rapidly. Today bulk tissue measurements are of marginal interest since most of the carbon in the tissue resides in proteins, lipids and carbohydrates that turn over rapidly. Specific cell types with specialized functions are the focus of cell turnover investigations. Tissue samples need to be fresh or frozen. Fixed or preserved samples contain petroleum-derived carbon that has not been successfully removed. Cell or nuclear surface markers are used to sort specific cell types, typically by fluorescence-activated cell sorting (FACS). Specific biomolecules need to be isolated with high purity and accelerator mass spectrometry (AMS) measurements must accommodate samples that generally contain less than 40 micrograms of carbon. Furthermore, all separations must not add carbon to the sample. Independent means such as UV absorbance must be used to confirm molecule purity. Approaches for separating specific proteins and DNA and combating contamination of undesired molecules are described. PMID:23359559

Sarachine Falso, Miranda J.; Buchholz, Bruce A.

2012-01-01

332

Bomb pulse biology  

NASA Astrophysics Data System (ADS)

The past decade has seen an explosion in use of the 14C bomb pulse to do fundamental cell biology. Studies in the 1960s used decay counting to measure tissue turnover when the atmospheric 14C/C concentration was changing rapidly. Today bulk tissue measurements are of marginal interest since most of the carbon in the tissue resides in proteins, lipids and carbohydrates that turn over rapidly. Specific cell types with specialized functions are the focus of cell turnover investigations. Tissue samples need to be fresh or frozen. Fixed or preserved samples contain petroleum-derived carbon that has not been successfully removed. Cell or nuclear surface markers are used to sort specific cell types, typically by fluorescence-activated cell sorting (FACS). Specific biomolecules need to be isolated with high purity and accelerator mass spectrometry (AMS) measurements must accommodate samples that generally contain less than 40 ?g of carbon. Furthermore, all separations must not add carbon to the sample. Independent means such as UV absorbance must be used to confirm molecule purity. Approaches for separating specific proteins and DNA and combating contamination of undesired molecules are described.

Falso, Miranda J. Sarachine; Buchholz, Bruce A.

2013-01-01

333

48 CFR 952.223-75 - Preservation of individual occupational radiation exposure records.  

Code of Federal Regulations, 2010 CFR

... false Preservation of individual occupational radiation exposure records. 952...223-75 Preservation of individual occupational radiation exposure records. ...criticality: Preservation of Individual Occupational Radiation Exposure Records (APR...

2010-10-01

334

Compositions including reduced malto-oligosaccharide preserving agents  

US Patent & Trademark Office Database

Disclosed is a composition that includes a material that is susceptible to degradation and a preserving agent in an amount effective to preserve the material comprising one or more reduced malto-oligosaccharide species. The preserving agent can include a single reduced malto-oligosaccharide species or a plurality of such species. Further disclosed is a method of preserving a material. The method generally includes contacting the material with a preserving agent containing a preserving effective amount of one or more reduced malto-oligosaccharide species. Solutions, powders, glasses, gels, and the like containing the chemically reactive material(s) and a preserving effective amount of one or more reduced malto-oligosaccharide species may be prepared.

2003-07-15

335

Comparison of methods of preserving tissues for pesticide analysis  

USGS Publications Warehouse

Formalin preservation, freezing, spoiling followed by freezing, and phenoxyethanol were compared in terms of concentrations of DDT, DDD, DDE, endrin, and hepatachlor epoxide measured in brain, liver and carcass of birds fed dietary dosages of pesticides and in spiked egg homogenate. Phenoxyethanol proved to be an unsatisfactory preservative; the amount of 'extractable lipid' was excessive, and measurements of concentrations in replicates were erratic. Concentrations of residues in formalin-preserved and frozen samples did not differ significantly in any tissue. Percentage lipid in brains and eggs, however, were significantly lower in formalin-preserved samples. Samples of muscle and liver that had been spoiled before freezing yielded less DDD, and muscle samples yielded more DDT than formalin-preserved samples. The authors conclude that formalin preservation is a satisfactory method for preservation of field samples and that the warming and spoiling of samples that may occur unavoidably in the field will not result in misleading analytical results.

Stickel, W.H.; Stickel, L.F.; Dyrland, R.A.; Hughes, D.L.

1984-01-01

336

Fishery Biology Graduate Programs  

E-print Network

Fishery Biology Graduate Programs University of Alaska Fairbanks, Alaska 997750820 Program: Fisheries Biology, Marine Biology, Oceanography http://www.sfos.uaf.edu:8000/academics State University Fort Collins, Colorado 805230015 Programs: Fishery Biology http

337

Privacy-preserving heterogeneous health data sharing  

PubMed Central

Objective Privacy-preserving data publishing addresses the problem of disclosing sensitive data when mining for useful information. Among existing privacy models, ?-differential privacy provides one of the strongest privacy guarantees and makes no assumptions about an adversary's background knowledge. All existing solutions that ensure ?-differential privacy handle the problem of disclosing relational and set-valued data in a privacy-preserving manner separately. In this paper, we propose an algorithm that considers both relational and set-valued data in differentially private disclosure of healthcare data. Methods The proposed approach makes a simple yet fundamental switch in differentially private algorithm design: instead of listing all possible records (ie, a contingency table) for noise addition, records are generalized before noise addition. The algorithm first generalizes the raw data in a probabilistic way, and then adds noise to guarantee ?-differential privacy. Results We showed that the disclosed data could be used effectively to build a decision tree induction classifier. Experimental results demonstrated that the proposed algorithm is scalable and performs better than existing solutions for classification analysis. Limitation The resulting utility may degrade when the output domain size is very large, making it potentially inappropriate to generate synthetic data for large health databases. Conclusions Unlike existing techniques, the proposed algorithm allows the disclosure of health data containing both relational and set-valued data in a differentially private manner, and can retain essential information for discriminative analysis. PMID:23242630

Mohammed, Noman; Jiang, Xiaoqian; Chen, Rui; Fung, Benjamin C M; Ohno-Machado, Lucila

2013-01-01

338

Endothelium Preserving Microwave Treatment for Atherosclerosis  

NASA Technical Reports Server (NTRS)

Method and apparatus are provided to treat atherosclerosis wherein the artery is partially closed by dilating the artery while preserving the vital and sensitive endothelial layer thereof. Microwave energy having a frequency from 3 GHz to 300 GHz is propagated into the arterial wall to produce a desired temperature profile therein at tissue depths sufficient for thermally necrosing connective tissue and softening fatty and waxy plaque while limiting heating of surrounding tissues including the endothelial layer and/or other healthy tissue, organs, and blood. The heating period for raising the temperature a potentially desired amount, about 20 C. within the atherosclerotic lesion may be less than about one second. In one embodiment of the invention, a radically beveled waveguide antenna is used to deliver microwave energy at frequencies from 25 GHz or 30 GHz to about 300 GHz and is focused towards a particular radial sector of the artery. Because the atherosclerotic lesions are often asymmetrically disposed directable or focussed heating preserves healthy sectors of the artery and applies energy to the asymmetrically positioned lesion faster than a non-directed beam. A computer simulation predicts isothermic temperature profiles for the given conditions and may be used in selecting power, pulse duration, beam width, and frequency of operation to maximize energy deposition and control heat rise within the atherosclerotic lesion without harming healthy tissues or the sensitive endothelium cells.

Carl, James R. (Inventor); Arndt, G. Dickey (Inventor); Fink, Patrick W. (Inventor); Beer, N. Reginald (Inventor); Henry, Phillip D. (Inventor); Pacifico, Antonio (Inventor); Raffoul, George W. (Inventor)

2001-01-01

339

Carbonaceous preservation of Cambrian hexactinellid sponge spicules.  

PubMed

Early fossil sponges offer a direct window onto the evolutionary emergence of animals, but insights are limited by the paucity of characters preserved in the conventional fossil record. Here, a new preservational mode for sponge spicules is reported from the lower Cambrian Forteau Formation (Newfoundland, Canada), prompting a re-examination of proposed homologies and sponge inter-relationships. The spicules occur as wholly carbonaceous films, and are interpreted as the remains of robust organic spicule sheaths. Comparable sheaths are restricted among living taxa to calcarean sponges, although the symmetries of the fossil spicules are characteristic of hexactinellid sponges. A similar extinct character combination has been documented in the Burgess Shale fossil Eiffelia. Interpreting the shared characters as homologous implies complex patterns of spicule evolution, but an alternative interpretation as convergent autapomorphies is more parsimonious. In light of the mutually exclusive distributions of these same characters among the crown groups, this result suggests that sponges exhibited an early episode of disparity expansion followed by comparatively constrained evolution, a pattern shared with many other metazoans but obscured by the conventional fossil record of sponges. PMID:20554559

Harvey, Thomas H P

2010-12-23

340

Nested Krylov methods and preserving the orthogonality  

NASA Technical Reports Server (NTRS)

Recently the GMRESR inner-outer iteraction scheme for the solution of linear systems of equations was proposed by Van der Vorst and Vuik. Similar methods have been proposed by Axelsson and Vassilevski and Saad (FGMRES). The outer iteration is GCR, which minimizes the residual over a given set of direction vectors. The inner iteration is GMRES, which at each step computes a new direction vector by approximately solving the residual equation. However, the optimality of the approximation over the space of outer search directions is ignored in the inner GMRES iteration. This leads to suboptimal corrections to the solution in the outer iteration, as components of the outer iteration directions may reenter in the inner iteration process. Therefore we propose to preserve the orthogonality relations of GCR in the inner GMRES iteration. This gives optimal corrections; however, it involves working with a singular, non-symmetric operator. We will discuss some important properties, and we will show by experiments that, in terms of matrix vector products, this modification (almost) always leads to better convergence. However, because we do more orthogonalizations, it does not always give an improved performance in CPU-time. Furthermore, we will discuss efficient implementations as well as the truncation possibilities of the outer GCR process. The experimental results indicate that for such methods it is advantageous to preserve the orthogonality in the inner iteration. Of course we can also use iteration schemes other than GMRES as the inner method; methods with short recurrences like GICGSTAB are of interest.

Desturler, Eric; Fokkema, Diederik R.

1993-01-01

341

Male fertility preservation before gonadotoxic therapies  

PubMed Central

Background: Recent advances in cancer therapy have resulted in an increased number of long-term cancer survivors. Unfortunately, aggressive chemotherapy, radiotherapy and preparative regimens for bone marrow transplantation can severely affect male germ cells, including spermatogonial stem cells (SSCs), and lead to permanent loss of fertility. Different options for fertility preservation are dependent on the pubertal state of the patient. Methods: Relevant studies were identified by an extensive Medline search of English and French language articles. Results: Sperm cryopreservation prior to gonadotoxic treatment is a well established method after puberty. In case of ejaculation failure by masturbation, assisted ejaculation methods or testicular tissue sampling should be considered. Although no effective gonadoprotective drug is yet available for in vivo spermatogonial stem cell (SSC) protection in humans, current evidence supports the feasibility of immature testicular tissue (ITT) cryopreservation. The different cryopreservation protocols and available fertility restoration options from frozen tissue, i.e. cell suspension transplantation, tissue grafting and in vitro maturation, are presented. Results obtained in humans are discussed in the light of lessons learned from animal studies. Conclusion: Advances in reproductive technology have made fertility preservation a real possibility in young patients whose gonadal function is threatened by gonadotoxic therapies. The putative indications for such techniques, as well as their limitations according to disease, are outlined.

Wyns, C.

2010-01-01

342

Topology preserving thinning of cell complexes.  

PubMed

A topology preserving skeleton is a synthetic representation of an object that retains its topology and many of its significant morphological properties. The process of obtaining the skeleton, referred to as skeletonization or thinning, is a very active research area. It plays a central role in reducing the amount of information to be processed during image analysis and visualization, computer-aided diagnosis, or by pattern recognition algorithms. This paper introduces a novel topology preserving thinning algorithm, which removes simple cells-a generalization of simple points-of a given cell complex. The test for simple cells is based on acyclicity tables automatically produced in advance with homology computations. Using acyclicity tables render the implementation of thinning algorithms straightforward. Moreover, the fact that tables are automatically filled for all possible configurations allows to rigorously prove the generality of the algorithm and to obtain fool-proof implementations. The novel approach enables, for the first time, according to our knowledge, to thin a general unstructured simplicial complex. Acyclicity tables for cubical and simplicial complexes and an open source implementation of the thinning algorithm are provided as an additional material to allow their immediate use in the vast number of applications arising in medical imaging and beyond. PMID:25137728

Dlotko, Pawel; Specogna, Ruben

2014-10-01

343

Applaying of high pressure to yoghurt preservation.  

PubMed

Effects of the high pressure treatment in the range of 200 - 1000 MPa/15 min., at the room temperature, on survivability of Streptococcus thermophilus and Lactobacillus delbrueckii ssp. bulgaricus was investigated. Sensorial characteristics of yoghurt was conducted by a panel of experts. Influence of yoghurt acidity on the effect of pressurization was also determined. In the experiment, we also attempted to extend shelf-life of yoghurt, subjecting it to the pressure of 550 MPa/15 min. Pressure treated yoghurt was stored for 4-weeks at room and refrigerated temperature; every seven days microbial number, acidity and sensory attributes of the beverage was determined. Addition of fruit jam on the effect of pressurization was also checked. Survivability of microorganisms depends on the value of pressure used in the experiment. The research displayed that yoghurt acidity did not influence the effect of pressurization. During 4-weeks of storage, yoghurt processed at 550 MPa maintained its beneficial characteristics longer compared to the non-pressurized one. Addition of fruit jam beneficially affected consistency of the pressure treated yoghurt. The conducted studies showed that there was possibility of preserving yoghurt by the method of high pressures. Thus, to preserve yoghurt, the complete inactivation of microflora is not necessary. PMID:24757790

Jankowska, A; Reps, A; Proszek, A; Krasowska, M

2003-01-01

344

Methods for long-term virus preservation.  

PubMed

Viruses exhibit a wide variety of structural and chemical differences, but, in general, their infectivity may be destroyed by degradative enzymes that destroy nucleic acids, by detergents that solubilize the lipid-containing envelopes thus exposing the nucleic acid, by temperatures higher than about 50 degrees C, or by chemicals that breakdown capsid proteins. Preserving the viruses at low or ultra-low temperatures, and/or in the absence of water, slows down these destructive processes sufficiently to increase significantly the length of time that the virus can be stored as infectious material. Supplements such as serum are presumed to stabilize the environmental conditions and to block degradative processes. The methods by which viruses may be preserved for long periods of time are similar to those employed for other microorganisms and are relatively simple. Nevertheless, attention to detail, good laboratory practice, aseptic technique, meticulous recordkeeping, and regular monitoring of the stored materials will increase the success rate and reduce problems of contamination or loss in the storage containers, where many different viruses may be stored for posterity! This article describes some of the simplest and most reliable storage procedures for viruses, but the author recognizes that everyone will have a favorite method to suit his or her own particular virus. PMID:10934522

Gould, E A

1999-11-01

345

Preservation of Microbial Lipids in Geothermal Sinters  

NASA Astrophysics Data System (ADS)

Lipid biomarkers are widely used to study the earliest life on Earth and have been invoked as potential astrobiological markers, but few studies have assessed their survival and persistence in geothermal settings. Here, we investigate lipid preservation in active and inactive geothermal silica sinters, with ages of up to 900 years, from Champagne Pool, Waiotapu, New Zealand. Analyses revealed a wide range of bacterial biomarkers, including free and bound fatty acids, 1,2-di-O-alkylglycerols (diethers), and various hopanoids. Dominant archaeal lipids include archaeol and glycerol dialkyl glycerol tetraethers (GDGTs). The predominance of generally similar biomarker groups in all sinters suggests a stable microbial community throughout Champagne Pool's history and indicates that incorporated lipids can be well preserved. Moreover, subtle differences in lipid distributions suggest that past changes in environmental conditions can be elucidated. In this case, higher archaeol abundances relative to the bacterial diethers, a greater proportion of cyclic GDGTs, the high average chain length of the bacterial diethers, and greater concentrations of hopanoic acids in the older sinters all suggest hotter conditions at Champagne Pool in the past.

Kaur, Gurpreet; Mountain, Bruce W.; Hopmans, Ellen C.; Pancost, Richard D.

2011-04-01

346

Lossless data embedding with file size preservation  

NASA Astrophysics Data System (ADS)

In lossless watermarking, it is possible to completely remove the embedding distortion from the watermarked image and recover an exact copy of the original unwatermarked image. Lossless watermarks found applications in fragile authentication, integrity protection, and metadata embedding. It is especially important for medical and military images. Frequently, lossless embedding disproportionably increases the file size for image formats that contain lossless compression (RLE BMP, GIF, JPEG, PNG, etc...). This partially negates the advantage of embedding information as opposed to appending it. In this paper, we introduce lossless watermarking techniques that preserve the file size. The formats addressed are RLE encoded bitmaps and sequentially encoded JPEG images. The lossless embedding for the RLE BMP format is designed in such a manner to guarantee that the message extraction and original image reconstruction is insensitive to different RLE encoders, image palette reshuffling, as well as to removing or adding duplicate palette colors. The performance of both methods is demonstrated on test images by showing the capacity, distortion, and embedding rate. The proposed methods are the first examples of lossless embedding methods that preserve the file size for image formats that use lossless compression.

Fridrich, Jessica; Goljan, Miroslav; Chen, Qing; Pathak, Vivek

2004-06-01

347

Sperm Preservation by Freeze-Drying for the Conservation of Wild Animals  

PubMed Central

Sperm preservation is a useful technique for the maintenance of biological resources in experimental and domestic animals, and in wild animals. A new preservation method has been developed that enables sperm to be stored for a long time in a refrigerator at 4°C. Sperm are freeze-dried in a solution containing 10 mM Tris and 1 mM EDTA. Using this method, liquid nitrogen is not required for the storage and transportation of sperm. We demonstrate that chimpanzee, giraffe, jaguar, weasel and the long-haired rat sperm remain viable after freeze-drying. In all species, pronuclei were formed after the injection of freeze-dried sperm into the mouse oocytes. Although preliminary, these results may be useful for the future establishment of “freeze-drying zoo” to conserve wild animals. PMID:25409172

Kaneko, Takehito; Ito, Hideyuki; Sakamoto, Hidefusa; Onuma, Manabu; Inoue-Murayama, Miho

2014-01-01

348

Biological Sciences http://www.clas.wayne.edu/biology/  

E-print Network

Biological Sciences http://www.clas.wayne.edu/biology/ Divisions: Evolutionary and Organismal Biology Molecular Biology and Biotechnology Cellular, Developmental, and Neurobiology #12;Biological Sciences http://www.clas.wayne.edu/biology/ � Cell Biology and Cytogenetics (Beningo, Tucker, Greenberg

Berdichevsky, Victor

349

Comparison of StatePreserving vs. NonStatePreserving Leakage Control in Caches \\Lambda  

E-print Network

in importance for CMOS de­ signs due to technology scaling. The 2001 International Technol­ ogy Roadmap such a large portion of chip area. Recent work [11, 14] has suggested that state­preserving techniques in caches by comparing drowsy cache and gated­Vss for data caches using 70nm technology parameters

Skadron, Kevin

350

Comparison of State-Preserving vs. Non-State-Preserving Leakage Control Dharmesh Parikh  

E-print Network

in importance for CMOS de- signs due to technology scaling. The 2001 International Technol- ogy Roadmap such a large portion of chip area. Recent work [11, 14] has suggested that state-preserving techniques drowsy cache and gated-V§¨§ for data caches using 70nm technology parameters. To perform the comparison

Skadron, Kevin

351

292 PRESERVATION BRIEF CLEMSON UNIVERSITY / COLLEGE OF CHARLESTON GRADUATE PROGRAM IN HISTORIC PRESERVATION  

E-print Network

Alumni News 292 Preserva on Brief-3 #12;The 2012 edition of our newsletter 292 Preservation Brief offers of the buildings that once occupied the intersection of Meet- ing and George Streets has helped all of us engage the emerging field of digital heritage. Our first-year students, members of the class of 2013, have already

Duchowski, Andrew T.

352

What is Systems Biology? Computational Biology Laboratory  

E-print Network

What is Systems Biology? HC Lee Computational Biology Laboratory Graduate Institute of Systems Biology and Bioinformatics Department of Physics National Central University 2009 10 11 National Central University 2009 Biophysics Camp for Students #12;What is Systems Biology? ·Hiroaki Kitano (Nature 2002

Lee, H.C. Paul

353

Biology 3515/Chemistry 3515 Biological Chemistry Laboratory  

E-print Network

Biology 3515/Chemistry 3515 Biological Chemistry Laboratory Spring 2013 (Draft Syllabus, 23 August 2012) Course Description and Objectives: This course is intended for students who have taken Biology and function, particularly for enzymes. Prerequisites: Biology 3510 or Chemistry 3510 Instructor: David P

Simons, Jack

354

Preserving Plutonium-244 as a National Asset  

SciTech Connect

Plutonium-244 (244 Pu) is an extremely rare and long-lived isotope of plutonium with a half-life of 80 million years. Measureable amounts of 244 Pu are found in neither reactor-grade nor weapons-grade plutonium. Production of this isotope requires a very high thermal flux to permit the two successive neutron captures that convert 242 Pu to 243 Pu to 244 Pu, particularly given the short (about 5 hour) half-life of 243 Pu. Such conditions simply do not exist in plutonium production processes. Therefore, 244 Pu is ideal for precise radiochemical analyses measuring plutonium material properties and isotopic concentrations in items containing plutonium. Isotope dilution mass spectrometry is about ten times more sensitive when using 244 Pu rather than 242 Pu for determining plutonium isotopic content. The isotope can also be irradiated in small quantities to produce superheavy elements. The majority of the existing global inventory of 244 Pu is contained in the outer housing of Mark-18A targets at the Savannah River Site (SRS). The total inventory is about 20 grams of 244 Pu in about 400 grams of plutonium distributed among the 65 targets. Currently, there are no specific plans to preserve these targets. Although the cost of separating and preserving this material would be considerable, it is trivial in comparison to new production costs. For all practical purposes, the material is irreplaceable, because new production would cost billions of dollars and require a series of irradiation and chemical separation cycles spanning up to 50 years. This paper will discuss a set of options for overcoming the significant challenges to preserve the 244 Pu as a National Asset: (1) the need to relocate the material from SRS in a timely manner, (2) the need to reduce the volume of material to the extent possible for storage, and (3) the need to establish an operational capability to enrich the 244 Pu in significant quantities. This paper suggests that if all the Mark-18A plutonium is separated, it would occupy a small volume and would be inexpensive to store while an enrichment capability is developed. Very small quantities could be enriched in existing mass separators to support critical needs.

Patton, Bradley D [ORNL; Alexander, Charles W [ORNL; Benker, Dennis [ORNL; Collins, Emory D [ORNL; Romano, Catherine E [ORNL; Wham, Robert M [ORNL

2011-01-01

355

Carbon-13 nuclear magnetic resonance analysis of formaldehyde free preservatives.  

PubMed

Preservation of biomolecules is pivotal in increasingly important molecular diagnostics. Traditionally, formaldehyde is employed for such biomolecular preservation in spite of its carcinogenicity. Moreover, formaldehyde induced cross-linking during fixation is reported to alter structural and functional properties of the preserved biomolecules. Therefore, formaldehyde-free preservatives are advantageous because they are safer for laboratory personnel and they protect the structural and functional integrity of the biomolecules. Streck Cell Preservative and Cell-Free DNA BCT reagents are used as formaldehyde alternative preservatives. However, no studies have been carried out to evaluate formaldehyde concentrations in these preservatives. In this study, we evaluated the free formaldehyde concentrations of these reagents by carbon-13 ((13)C) NMR spectroscopic analysis. Chemically non-invasive NMR analysis is more reliable than the traditional derivatization based techniques in formaldehyde detection. (13)C NMR technique can be used for quantitative measurement by using (13)C NMR-relaxation agents. In this manuscript, we report an optimized NMR analysis method using Gadolinium diethylenetriaminepentaacetate. Additionally the data reported herein provide spectral analyses that indicate Streck Cell Preservative and Cell-Free DNA BCT reagents do not contain detectable free formaldehyde. Therefore, these preservatives are safer alternatives than formaldehyde for laboratory use, which can protect the overall integrity of the biomolecules within preserved samples. PMID:23261251

Das, Kausik; Dumais, Joseph; Basiaga, Sara; Krzyzanowski, Gary D

2013-06-01

356

Information and Knowledge in Biology  

PubMed Central

The second law of thermodynamics accounts for irreversibility of processes in the universe. As a statement about increasing disorder, it also plays a central role in creating order. Structuring is a way of how to increase the rate of dissipation of matter and energy. This is the reason why chemical reactions on Earth have produced a profusion of structures. Chemical structures with particularly high stability, maintained by continual dissipation, are designated, somewhat arbitrarily, as living systems. To preserve stability, organisms are unceasingly performing ontic work, assisted by epistemic work. Biological evolution is a progressing process of knowledge acquisition (cognition) and, correspondingly, of growth of complexity. The acquired knowledge represents epistemic complexity. Biological species are the main “bookkeepers” of acquired knowledge, with individual members of the species functioning as “explorers” of novelty. Science, a human species-specific mode of acquiring knowledge, abounds in metaphors no less than art. In the postgenomic era, the metaphor of information, along with the related metaphor of selfish genes, may need reconsideration and/or complementation. The world of great complexity, which is becoming the focus of studies of contemporary biology, may require—similarly as is the case of quantum physics—descriptions based on the principle of complementarity. Embodied knowledge, molecular engine, ontic and epistemic work, and triggering may become parts of a new conceptual armory. PMID:19516970

2007-01-01

357

Memory preservation made prestigious but easy  

NASA Astrophysics Data System (ADS)

Preserving memories combined with story-telling using either photo books for multiple images or high quality products such as one or a few images printed on canvas or images mounted on acryl to create high-quality wall decorations are gradually becoming more popular than classical 4*6 prints and classical silver halide posters. Digital printing via electro photography and ink jet is increasingly replacing classical silver halide technology as the dominant production technology for these kinds of products. Maintaining a consistent and comparable quality of output is becoming more challenging than using silver halide paper for both, prints and posters. This paper describes a unique approach of combining both desktop based software to initiate a compelling project and the use of online capabilities in order to finalize and optimize that project in an online environment in a community process. A comparison of the consumer behavior between online and desktop based solutions for generating photo books will be presented.

Fageth, Reiner; Debus, Christina; Sandhaus, Philipp

2011-01-01

358

Preserving Native American petroglyphs on porous sandstone  

USGS Publications Warehouse

A new method of chemical treatment is proposed to improve the durability of soft, porous sandstones onto which Native American petroglyphs have been carved. Cores of Dakota Sandstone from the Faris Cave site, located along the Smoky Hill River in Ellsworth County, Kansas, were treated with ethyl silicate dissolved in a lightweight ketone carrier, and some cores were subsequently treated with a combination of ethyl silicate and silane using the same solvent. Measurement of the resulting physical properties, when compared to untreated cores, indicate the treatments substantially increased the compressive strength and freeze-thaw resistance of the stone without discoloring the stone or completely sealing the pore system. The treatment increases the durability of the stone and provides a method for preserving the petroglyphs at the site. After treating test panels at the site, the petroglyphs were treated in like manner.

Grisafe, D.A.

1996-01-01

359

Preserving Neural Function under Extreme Scaling  

PubMed Central

Important brain functions need to be conserved throughout organisms of extremely varying sizes. Here we study the scaling properties of an essential component of computation in the brain: the single neuron. We compare morphology and signal propagation of a uniquely identifiable interneuron, the HS cell, in the blowfly (Calliphora) with its exact counterpart in the fruit fly (Drosophila) which is about four times smaller in each dimension. Anatomical features of the HS cell scale isometrically and minimise wiring costs but, by themselves, do not scale to preserve the electrotonic behaviour. However, the membrane properties are set to conserve dendritic as well as axonal delays and attenuation as well as dendritic integration of visual information. In conclusion, the electrotonic structure of a neuron, the HS cell in this case, is surprisingly stable over a wide range of morphological scales. PMID:23977069

Cuntz, Hermann; Forstner, Friedrich; Schnell, Bettina; Ammer, Georg; Raghu, Shamprasad Varija; Borst, Alexander

2013-01-01

360

Structure-preserving desynchronization of minority games  

NASA Astrophysics Data System (ADS)

Perfect synchronicity in N-player games is a useful theoretical dream, but communication delays are inevitable and may result in asynchronous interactions. Some systems such as financial markets are asynchronous by design, and yet most theoretical models assume perfectly synchronized actions. We propose a general method to transform standard models of adaptive agents into asynchronous systems while preserving their global structure under some conditions. Using the minority game as an example, we find that the phase and fluctuations structure of the standard game subsists even in maximally asynchronous deterministic case, but that it disappears if too much stochasticity is added to the temporal structure of interaction. Allowing for heterogeneous communication speeds and activity patterns gives rise to a new information ecology that we study in details. in here

Mosetti, G.; Challet, D.; Solomon, S.

2009-10-01

361

Privacy-preserving Kruskal-Wallis test.  

PubMed

Statistical tests are powerful tools for data analysis. Kruskal-Wallis test is a non-parametric statistical test that evaluates whether two or more samples are drawn from the same distribution. It is commonly used in various areas. But sometimes, the use of the method is impeded by privacy issues raised in fields such as biomedical research and clinical data analysis because of the confidential information contained in the data. In this work, we give a privacy-preserving solution for the Kruskal-Wallis test which enables two or more parties to coordinately perform the test on the union of their data without compromising their data privacy. To the best of our knowledge, this is the first work that solves the privacy issues in the use of the Kruskal-Wallis test on distributed data. PMID:23871682

Guo, Suxin; Zhong, Sheng; Zhang, Aidong

2013-10-01

362

An automatic volume control for preserving intelligibility  

E-print Network

A new method has been developed to adjust volume automatically on all audio devices equipped with at least one microphone, including mobile phones, personal media players, headsets, and car radios, that might be used in noisy environments, such as crowds, cars, and outdoors. The method uses a patented set of algorithms, implemented on the chips in such devices, to preserve constant intelligibility of speech in noisy environments, rather than constant signal-to-noise ratio. The algorithms analyze the noise background in real time and compensate only for fluctuating noise in the frequency domain and the time domain that interferes with intelligibility of speech. Advantages of this method of controlling volume include: Controlling volume without sacrificing clarity; adjusting only for persistent speech-interference noise; smoothing volume fluctuations; and eliminating static-like bursts caused by noise spikes. Practical human-factors approaches to implementing these algorithms in mobile phones are discussed.

Felber, Franklin

2011-01-01

363

The Star-Spangled Banner Preservation Project  

NSDL National Science Digital Library

This recently expanded site from the Smithsonian National Museum of American History is intended to serve as "the most comprehensive on-line resource about the 186-year-old banner, which inspired the words to the National Anthem." The site offers a number of illustrated short essays, tracing the history of the flag and the national anthem and preservation efforts over the years. It also features several mysteries surrounding the flag that users can try to solve using primary sources and then read a historian's opinion. Educator information and teaching materials, and an online quiz round out the site. Users can browse the site's content via a menu on the left or access selected sections by scrolling over the flag on the main page.

364

The Wisconsin Oneida Language Preservation Project  

NSDL National Science Digital Library

Offered as part of the University of Wisconsin Digital Collections, the Wisconsin Oneida Language Preservation Project brings together original stories and curriculum with accompanying audio that teaches the Wisconsin Oneida language. Visitors can start by clicking on the About area to learn more about these unique items. The materials here are divided into curriculum levels (grades kindergarten through sixth) and include some songs as well. One unique feature happens to be the stories about Oneida culture collected as part of the Works Progress Administration project in the late 1930s and early 1940s. As this particular language is in steep decline, this project is an integral part of keeping these words, traditions, syntaxes, and so on alive for future generations.

2012-01-01

365

Efficient Blockwise Permutation Tests Preserving Exchangeability  

PubMed Central

In this paper, we present a new blockwise permutation test approach based on the moments of the test statistic. The method is of importance to neuroimaging studies. In order to preserve the exchangeability condition required in permutation tests, we divide the entire set of data into certain exchangeability blocks. In addition, computationally efficient moments-based permutation tests are performed by approximating the permutation distribution of the test statistic with the Pearson distribution series. This involves the calculation of the first four moments of the permutation distribution within each block and then over the entire set of data. The accuracy and efficiency of the proposed method are demonstrated through simulated experiment on the magnetic resonance imaging (MRI) brain data, specifically the multi-site voxel-based morphometry analysis from structural MRI (sMRI).

Zhou, Chunxiao; Zwilling, Chris E.; Calhoun, Vince D.; Wang, Michelle Y.

2014-01-01

366

Biological reserve design Page 1 Chave et al.  

E-print Network

a priority for conservation biology since the early 1970s [1], and for many good reasons. Rain forests of deforestation is 130,000 km2 /y [10]. The destruction of large expanses of forests not only increases the risk to preserve this endangered habitat [16] and to curb the current rate of tropical deforestation. A rapidly

Chave, Jérôme

367

Distal pancreatectomy with splenic preservation revisited  

PubMed Central

Background Splenic preservation (SP) during distal pancreatectomy can be accomplished by ligating the main splenic artery and vein relying on blood supply from the short gastric vessels. The purpose of this study was to examine the short-term implications of this operation, comparing it to the outcomes following distal pancreatectomy with splenectomy. Methods The records of 259 patients who underwent distal pancreatectomy with and without SP at Massachusetts General Hospital from 1994 to 2004 were reviewed. Results A total of 29% of patients underwent SP with this technique. These patients were more likely to be women (74% vs 56%, P = .008) and to have benign disease (93% vs 54%, P < .0001). Their operative times were shorter (2.5 vs 3.1 h, P < .0001), they had less blood loss (300 vs 500 ml, P < .0001) and a shorter duration of stay (6 days [interquartile range, 5 to 7] vs 7 days [interquartile range, 5 to 8], P = .001). SP was not a significant predictor of complications in either univariate (P = .445) or adjusted analysis (P = .543). One patient (1.4%) in the SP group was reoperated for splenic infarction and two patients (1.1%) in the splenectomy group for abscess and hemorrhage. There were 2 (0.8%) postoperative deaths, both in the splenectomy group. Conclusions Splenic preservation relying on blood supply from the short gastric vessels is reliable and safe and does not have a higher incidence of postoperative complications when compared to traditional distal pancreatectomy with splenectomy. The current series validates this approach and provides further evidence of its feasibility and safety. PMID:17462461

Rodriguez, J. Ruben; Madanat, Michael G.; Healy, Brian C.; Thayer, Sarah P.; Warshaw, Andrew L.; Castillo, Carlos Fernandez-Del

2013-01-01

368

Preserving noble gases in a convecting mantle.  

PubMed

High (3)He/(4)He ratios sampled at many ocean islands are usually attributed to an essentially undegassed lower-mantle reservoir with high (3)He concentrations. A large and mostly undegassed mantle reservoir is also required to balance the Earth's (40)Ar budget, because only half of the (40)Ar produced from the radioactive decay of (40)K is accounted for by the atmosphere and upper mantle. However, geophysical and geochemical observations suggest slab subduction into the lower mantle, implying that most or all of Earth's mantle should have been processed by partial melting beneath mid-ocean ridges and hotspot volcanoes. This should have left noble gases in both the upper and the lower mantle extensively outgassed, contrary to expectations from (3)He/(4)He ratios and the Earth's (40)Ar budget. Here we suggest a simple solution: recycling and mixing of noble-gas-depleted slabs dilutes the concentrations of noble gases in the mantle, thereby decreasing the rate of mantle degassing and leaving significant amounts of noble gases in the processed mantle. As a result, even when the mass flux across the 660-km seismic discontinuity is equivalent to approximately one lower-mantle mass over the Earth's history, high (3)He contents, high (3)He/(4)He ratios and (40)Ar concentrations high enough to satisfy the (40)Ar mass balance of the Earth can be preserved in the lower mantle. The differences in (3)He/(4)He ratios between mid-ocean-ridge basalts and ocean island basalts, as well as high concentrations of (3)He and (40)Ar in the mantle source of ocean island basalts, can be explained within the framework of different processing rates for the upper and the lower mantle. Hence, to preserve primitive noble gas signatures, we find no need for hidden reservoirs or convective isolation of the lower mantle for any length of time. PMID:19478782

Gonnermann, Helge M; Mukhopadhyay, Sujoy

2009-05-28

369

Organ preservation using a photosynthetic solution  

PubMed Central

Background Organs harvested from a body lapsing into circulatory deficit are exposed to low O2/high CO2, and reach a critical point where original functionality after transplantation is unlikely. The present study evaluates the effect of respiratory assistance using Chlorella photosynthesis on preservation of the rat pancreas from the viewpoint of donation after cardiac death (DCD). Methods Gas was exchanged through the peritoneum of rats under controlled ventilation with or without Chlorella photosynthetic respiratory assistance. A gas permeable pouch containing Chlorella in solution was placed in the peritoneum and then the space between the pouch and the peritoneum was filled with an emulsified perfluorocarbon gas carrier. Rat DCD pancreases procured 3?h after cardiac arrest were preserved for 30?min in a cold or mildly hypothermic environment or in a mildly hypothermic environment with photosynthetic respiratory support. The pancreases were then heterotopically transplanted into rats with STZ-induced diabetes. Results Levels of blood oxygen (PaO2) and carbon dioxide (PaCO2) increased and significantly decreased, respectively, in rats with mechanically reduced ventilation and rats given intraperitoneal photosynthetic respiratory support when compared with those without such support. Transplantation with DCD pancreases that had been stored under photosynthetic respiratory support resulted in the survival of all rats, which is impossible to achieve using pancreases that have been maintained statically in cold storage. Conclusion Respiratory assistance using photosynthesis helps to improve not only blood gas status in the event of respiratory insufficiency, but also graft recovery after pancreas transplantation with a DCD pancreas that has been damaged by prolonged warm ischemia. PMID:23369195

2012-01-01

370

Colicin Biology  

PubMed Central

Colicins are proteins produced by and toxic for some strains of Escherichia coli. They are produced by strains of E. coli carrying a colicinogenic plasmid that bears the genetic determinants for colicin synthesis, immunity, and release. Insights gained into each fundamental aspect of their biology are presented: their synthesis, which is under SOS regulation; their release into the extracellular medium, which involves the colicin lysis protein; and their uptake mechanisms and modes of action. Colicins are organized into three domains, each one involved in a different step of the process of killing sensitive bacteria. The structures of some colicins are known at the atomic level and are discussed. Colicins exert their lethal action by first binding to specific receptors, which are outer membrane proteins used for the entry of specific nutrients. They are then translocated through the outer membrane and transit through the periplasm by either the Tol or the TonB system. The components of each system are known, and their implication in the functioning of the system is described. Colicins then reach their lethal target and act either by forming a voltage-dependent channel into the inner membrane or by using their endonuclease activity on DNA, rRNA, or tRNA. The mechanisms of inhibition by specific and cognate immunity proteins are presented. Finally, the use of colicins as laboratory or biotechnological tools and their mode of evolution are discussed. PMID:17347522

Cascales, Eric; Buchanan, Susan K.; Duche, Denis; Kleanthous, Colin; Lloubes, Roland; Postle, Kathleen; Riley, Margaret; Slatin, Stephen; Cavard, Daniele

2007-01-01

371

Muscle torque preservation and physical activity in individuals with stroke  

PubMed Central

Background A greater percent loss of concentric versus eccentric muscle torque (i.e., relative eccentric muscle torque preservation) has been reported in the paretic limb of individuals with stroke and has been attributed to hypertonia and/or co-contractions. Stroke provides a unique condition for examining mechanisms underlying eccentric muscle preservation because both limbs experience similar amounts of general physical activity, but the paretic side is impaired directly by the brain lesion. Purpose The purpose of this study was to determine 1) whether eccentric preservation also exists in the nonparetic limb and 2) the relationship of eccentric or concentric torque preservation with physical activity in stroke. We hypothesized that the nonparetic muscles would demonstrate eccentric muscle preservation, which would suggest that non-neural mechanisms may also contribute to its relative preservation. Methods Eighteen stroke and 18 healthy control subjects (age and sex matched) completed a physical activity questionnaire. Maximum voluntary concentric and eccentric joint torques of the ankle, knee and hip flexors and extensors were measured using an isokinetic dynamometer at 30°/s for the paretic and nonparetic muscles. Relative concentric and eccentric peak torque preservation were expressed as a percentage of control subject torque. Results Relative eccentric torque was higher (more preserved) than relative concentric torque for paretic, as well as nonparetic muscles. Physical activity correlated with paretic (r=0.640, p=0.001) and nonparetic concentric torque preservation (r=0.508, p=0.009), but not with eccentric torque preservation for either leg. Conclusions The relative preservation of eccentric torque in the nonparetic muscles suggest a role of non-neural mechanisms and could also explain the preservation observed in other chronic health conditions. Loss of concentric, but not eccentric muscle torque was related to physical inactivity in stroke. PMID:19516167

Eng, Janice J.; Lomaglio, Melanie J.; MacIntyre, Donna L.

2011-01-01

372

On positivity preserving finite volume schemes for compressible Euler equations  

NASA Technical Reports Server (NTRS)

Positivity preserving property of first and higher order finite volume schemes for one and two dimensional compressible Euler equations of gas dynamics is considered. A general framework is established which shows the positivity of density and pressure whenever the underlying one dimensional first order building block based on exact or approximate Riemann solver and the reconstruction are both positivity preserving. Appropriate limitation to achieve high order positivity preserving reconstruction is described.

Perthame, Benoit; Shu, Chi-Wang

1993-01-01

373

Redox biology of the intestine  

PubMed Central

The intestinal tract, known for its capability for self-renew, represents the first barrier of defense between the organism and its luminal environment. The thiol/disulfide redox systems comprising the glutathione/glutathione disulfide (GSH/GSSG), cysteine/cystine (Cys/CySS) and reduced and oxidized thioredoxin (Trx/TrxSS) redox couples play important roles in preserving tissue redox homeostasis, metabolic functions, and cellular integrity. Control of the thiol-disulfide status at the luminal surface is essential for maintaining mucus fluidity and absorption of nutrients, and protection against chemical-induced oxidant injury. Within intestinal cells, these redox couples preserve an environment that supports physiological processes and orchestrates networks of enzymatic reactions against oxidative stress. In this review, we focus on the intestinal redox and antioxidant systems, their subcellular compartmentation, redox signaling and epithelial turnover, and contribution of luminal microbiota, key aspects that are relevant to understanding redox-dependent processes in gut biology with implications for degenerative digestive disorders, such as inflammation and cancer. PMID:21831010

Circu, Magdalena L.; Aw, Tak Yee

2011-01-01

374

An evaluation of atmospheric evaporation for treating wood preserving wastes  

E-print Network

to evaporate. After seasoning, the charge can be immedi ately impregnaterl with preservative for full cell treatment. kmpty cell treatment requires draining thc cylirider before preserving. The vapors generated are condensed ard create an oily wastewater... of I'ABI 8 3. ? Reported Characteristic o, liood Preserving Slastevraters from Oi'I-burne and I. 'ater-borne Preserva'tive Trreatments Parameter Oi1-Horn' (2) lister-Borne (3) F1 ovr, Slum COO, mg/1 800n, rag/1 Pheno'Is, mg/1 Oils, mg/1 Disso...

Shack, Pete A

2012-06-07

375

Molecular preservation in Late Cretaceous sauropod dinosaur eggshells  

PubMed Central

Exceptionally preserved sauropod eggshells discovered in Upper Cretaceous (Campanian) deposits in Patagonia, Argentina, contain skeletal remains and soft tissues of embryonic Titanosaurid dinosaurs. To preserve these labile embryonic remains, the rate of mineral precipitation must have superseded post-mortem degradative processes, resulting in virtually instantaneous mineralization of soft tissues. If so, mineralization may also have been rapid enough to retain fragments of original biomolecules in these specimens. To investigate preservation of biomolecular compounds in these well-preserved sauropod dinosaur eggshells, we applied multiple analytical techniques. Results demonstrate organic compounds and antigenic structures similar to those found in extant eggshells. PMID:15888409

Schweitzer, M.H; Chiappe, L; Garrido, A.C; Lowenstein, J.M; Pincus, S.H

2005-01-01

376

Preservation injury patterns in liver transplantation associated with poor prognosis.  

PubMed

Preservation injury (PI) is defined as hepatic dysfunction that occurs within 10 days of liver transplantation (OLT) but spontaneously resolves. However, we noted two new patterns: one characterized by histologic evidence of preservation injury that occurs at later than 10 days post-OLT (late PI), and a second, of persistent charge in liver biopsies > 10 days post-OLT (persistent PI). To characterize these new patterns, we performed a retrospective study of patients who underwent liver biopsies for hepatic dysfunction post-OLT from September 1993 to March 1998. The outcome of the 61 patients with preservation injury on liver biopsy after OLT was followed until the last clinic visit or death. Thirty patients had early PI, 16 patients had persistent preservation injury and 15 patients, late onset preservation injury. There were no significant differences in the age (P =.28), sex (P =.77), follow-up time (P =.78), cold ischemia (P =.3), or warm ischemia time (P =.16) between these groups. There was also no significant association between early preservation injury or persistent preservation injury with the development of acute or chronic rejection (P =.19). The overall survival rates at 1, 3, and 5 years was 52%, 45%, and 45%, respectively. There was no significant difference in survival between early, persistent, and late PI patterns (P =.59), although there was a trend toward better survival for patients with early preservation injury. The survival of OLT patients with persistent or late preservation injury is poor and should prompt consideration for retransplantation. PMID:14697950

Lee, Y-M; O'Brien, C B; Yamashiki, N; Behro, M; Weppler, D; Tzakis, A G; Schiff, E R

2003-12-01

377

Constraint preserving boundary conditions for the Ideal Newtonian MHD equations  

E-print Network

We study and develop constraint preserving boundary conditions for the Newtonian magnetohydrodynamic equations and analyze the behavior of the numerical solution upon considering different possible options.

Mariana Cecere; Luis Lehner; Oscar Reula

2008-01-14

378

Effects of benzalkonium chloride-preserved, polyquad-preserved, and sofZia-preserved topical glaucoma medications on human ocular epithelial cells.  

PubMed

INTRODUCTION|: To investigate potentially adverse effects of different topical glaucoma medications and preservatives on cultured ocular epithelial cells. METHODS|: Confluent cultures of human corneal (10.014 pRSV-T) and conjunctival cells (1-5c-4) were assayed with 100 ?L of different glaucoma medications for 25 minutes at 37°C and 5% CO?. We also tested the preservative sofZia® (Alcon Laboratories, Fort Worth, TX, USA), as well as a range of concentrations of the preservative benzalkonium chloride (BAK; 0.001% to 0.050%). Balanced salt solution was used as the "live" control and a solution containing 70% methanol and 0.2% saponin was used as a "dead" control. The LIVE/DEAD viability/cytotoxicity kit (Invitrogen, Carlsbad, CA, USA) was used to determine the percentage of dead and live cells via ethidium homodimer and calcein fluorescence, respectively. RESULTS|: The toxicity of the prostaglandin analogs latanoprost, tafluprost and travoprost preserved with BAK was similar to the toxicity observed in their respective BAK concentrations. The prostaglandin analog travoprost (0.004%) preserved with the oxidizing preservative sofZia had much greater corneal and conjunctival cell survival than travoprost preserved with BAK. Travoprost (0.004%) containing polyquad also performed statistically better than its BAK-preserved formulation. CONCLUSION|: Ocular surface side effects have previously been demonstrated with chronic, long-term exposure to intraocular pressure-lowering medications containing the common preservative BAK. BAK alone has significant in-vitro cytotoxicity to cultured ocular epithelial cells. Substitution of BAK with polyquad or sofZia resulted in significantly higher percentages of live conjunctival and corneal cells. Further studies are needed to understand the- clinical implications of these findings. PMID:20931366

Ammar, David A; Noecker, Robert J; Kahook, Malik Y

2010-11-01

379

Models for synthetic biology  

Microsoft Academic Search

Synthetic biological engineering is emerging from biology as a distinct discipline based on quantification. The technologies propelling synthetic biology are not new, nor is the concept of designing novel biological molecules. What is new is the emphasis on system behavior. The objective is the design and construction of new biological devices and systems to deliver useful applications. Numerous synthetic gene

Yiannis N Kaznessis

2007-01-01

380

Which Is the Better Operation in Chronic Pancreatitis: Pylorus-Preserving Whipple or Duodenum-Preserving Pancreatic Head Resection?  

Microsoft Academic Search

Surgical treatment in patients suffering from chronic pancreatitis is still discussed controversially. The classical Whipple resection which has been the standard operation in chronic pancreatitis for several decades is continuously replaced by organ-preserving surgical procedures. The pylorus-preserving Whipple resection, a modification of the classical Whipple, and the duodenum-preserving pancreatic head resection are two competitive operations in patients with chronic pancreatitis

H. Friess; M. W. Müller; M. W. Büchler

1996-01-01

381

Intelligent form removal with character stroke preservation  

NASA Astrophysics Data System (ADS)

A new technique for intelligent form removal has been developed along with a new method for evaluating its impact on optical character recognition (OCR). All the dominant lines in the image are automatically detected using the Hough line transform and intelligently erased while simultaneously preserving overlapping character strokes by computing line width statistics and keying off of certain visual cues. This new method of form removal operates on loosely defined zones with no image deskewing. Any field in which the writer is provided a horizontal line to enter a response can be processed by this method. Several examples of processed fields are provided, including a comparison of results between the new method and a commercially available forms removal package. Even if this new form removal method did not improve character recognition accuracy, it is still a significant improvement to the technology because the requirement of a priori knowledge of the form's geometric details has been greatly reduced. This relaxes the recognition system's dependence on rigid form design, printing, and reproduction by automatically detecting and removing some of the physical structures (lines) on the form. Using the National Institute of Standards and Technology (NIST) public domain form-based handprint recognition system, the technique was tested on a large number of fields containing randomly ordered handprinted lowercase alphabets, as these letters (especially those with descenders) frequently touch and extend through the line along which they are written. Preserving character strokes improves overall lowercase recognition performance by 3%, which is a net improvement, but a single performance number like this doesn't communicate how the recognition process was really influenced. There is expected to be trade- offs with the introduction of any new technique into a complex recognition system. To understand both the improvements and the trade-offs, a new analysis was designed to compare the statistical distributions of individual confusion pairs between two systems. As OCR technology continues to improve, sophisticated analyses like this are necessary to reduce the errors remaining in complex recognition problems.

Garris, Michael D.

1996-03-01

382

Genomics-Bioinformatics Day: "Bioinformatics, Computational Biology, Systems Biology & Mathematical  

E-print Network

3rd Genomics-Bioinformatics Day: "Bioinformatics, Computational Biology, Systems Biology on "Bioinformatics, Computational Biology, Systems Biology & Mathematical Biology: Their Relationship". Genomics, Bioinformatics, Computational Biology have a tremendous appeal and these fields have originated or grown

Goldschmidt, Christina

383

Temperature dependency of molecular mobility in preserved seeds.  

PubMed

Although cryogenic storage is presumed to provide nearly infinite longevity to cells, the actual timescale for changes in viability has not been addressed theoretically or empirically. Molecular mobility within preserved biological materials provides a first approximation of the rate of deteriorative reactions that ultimately affect shelf-life. Here, temperature effects on molecular mobility in partially dried seeds are calculated from heat capacities, measured using differential scanning calorimetry, and models for relaxation of glasses based on configurational entropy. Based on these analyses, glassy behavior in seeds containing 0.07 g H(2)O/g dm followed strict Vogel-Tamman-Fulcher (VTF) behavior at temperatures above and just below the glass transition temperature (Tg) at 28 degrees C. Temperature dependency of relaxation times followed Arrhenius kinetics as temperatures decreased well below Tg. The transition from VTF to Arrhenius kinetics occurred between approximately 5 and -10 degrees C. Overall, relaxation times calculated for seeds containing 0.07 g H(2)O/g dm decreased by approximately eight orders of magnitude when seeds were cooled from 60 to -60 degrees C, comparable to the magnitude of change in aging kinetics reported for seeds and pollen stored at a similar temperature range. The Kauzmann temperature (T(K)), often considered the point at which molecular mobility of glasses is practically nil, was calculated as -42 degrees C. Calculated relaxation times, temperature coefficients lower than expected from VTF kinetics, and T(K) that is 70 degrees C below Tg suggest there is molecular mobility, albeit limited, at cryogenic temperatures. PMID:14747359

Walters, Christina

2004-02-01

384

Fertility preservation in breast cancer patients.  

PubMed

Systemic therapies have been shown to effectively improve prognosis in patients with breast cancer. However, such therapies also become increasingly harmful as their duration increases, and they have adverse effects on fertility and ovarian function. Fertility preservation (FP) is important in young adult cancer survivors who may wish to have children. In Japan, some cancer societies recommend that the potentially serious effects of systemic therapy on ovarian function should be explained to women with cancer, and they should be encouraged to undergo FP prior to commencing treatment. Still, as there are no official guidelines, many oncologists lack the required knowledge and mind-set to advise young breast cancer patients on fertility issues. Counseling of patients and their families might improve their understanding about the influence of such treatment on fertility and ensure effective FP. There are several FP methods that can be selected before beginning treatment, and these methods have both advantages and disadvantages. Young adults with breast cancer who want to bear children in the future must be provided with FP counseling, in addition to advice about breast cancer treatment and prognosis. PMID:23526260

Shien, Tadahiko; Nakatsuka, Mikiya; Doihara, Hiroyoshi

2014-11-01

385

Learning locality preserving graph from data.  

PubMed

Machine learning based on graph representation, or manifold learning, has attracted great interest in recent years. As the discrete approximation of data manifold, the graph plays a crucial role in these kinds of learning approaches. In this paper, we propose a novel learning method for graph construction, which is distinct from previous methods in that it solves an optimization problem with the aim of directly preserving the local information of the original data set. We show that the proposed objective has close connections with the popular Laplacian Eigenmap problem, and is hence well justified. The optimization turns out to be a quadratic programming problem with n(n-1)/2 variables (n is the number of data points). Exploiting the sparsity of the graph, we further propose a more efficient cutting plane algorithm to solve the problem, making the method better scalable in practice. In the context of clustering and semi-supervised learning, we demonstrated the advantages of our proposed method by experiments. PMID:25020223

Zhang, Yan-Ming; Huang, Kaizhu; Hou, Xinwen; Liu, Cheng-Lin

2014-11-01

386

Discontinuity preserving depth estimation using distance transform  

NASA Astrophysics Data System (ADS)

Image interpolation methods at arbitrary view positions have become quite important due to the development of threedimensional multi-view image display devices. Accurate depth information is required for natural image generation. Over the past several decades, a variety of stereo-image-based depth estimation methods have been developed to obtain high-quality depth data. However, obtaining accurate depth information still remains problematic due to difficult correspondence matching in image occlusion regions. In particular, for the discontinuous depth edge region, unclear color values exist, which lead to ineffective of corresponding matching. Thus, we propose a discontinuity preserving depth estimation method to solve the problem. The distance transform (DT) calculates the distance to the closest edge for each pixel of the input image. By controlling the color weighting term using DT values of stereo images, we carry out better correspondence matching in discontinuous regions. Experimental results indicate that the proposed method outperforms other methods. Visual comparison of the experimental results demonstrates that the proposed stereo-imagebased depth estimation method improves the quality of the depth map in discontinuous edge regions.

Jang, Woo-Seok; Ho, Yo-Sung

2014-03-01

387

Working Memory Is Partially Preserved during Sleep  

PubMed Central

Although several cognitive processes, including speech processing, have been studied during sleep, working memory (WM) has never been explored up to now. Our study assessed the capacity of WM by testing speech perception when the level of background noise and the sentential semantic length (SSL) (amount of semantic information required to perceive the incongruence of a sentence) were modulated. Speech perception was explored with the N400 component of the event-related potentials recorded to sentence final words (50% semantically congruent with the sentence, 50% semantically incongruent). During sleep stage 2 and paradoxical sleep: (1) without noise, a larger N400 was observed for (short and long SSL) sentences ending with a semantically incongruent word compared to a congruent word (i.e. an N400 effect); (2) with moderate noise, the N400 effect (observed at wake with short and long SSL sentences) was attenuated for long SSL sentences. Our results suggest that WM for linguistic information is partially preserved during sleep with a smaller capacity compared to wake. PMID:23236418

Daltrozzo, Jerome; Claude, Lea; Tillmann, Barbara; Bastuji, Helene; Perrin, Fabien

2012-01-01

388

Preserving SSC Design Function Using RCM Principles  

SciTech Connect

Reliability-Centered Maintenance (RCM) can be defined as an approach that employs preventive, predictive, proactive, and reactive maintenance practices and strategies in an integrated manner to increase the probability that a Structure, System, or Component (SSC) will function as designed over its life cycle with optimum maintenance. The goal of RCM is to preserve the SSC intended design function at the lowest cost by developing a maintenance strategy that is supported by sound technical and economic justification. RCM has been used extensively by the aircraft, space, defense, power generation, and manufacturing industries where functional failures of SSCs can have the potential to compromise worker or public safety, cause adverse environmental impact, cause loss of production, and/or result in excessive damage to critical SSCs. This paper provides a framework for performing an RCM analysis in support of DOE Order 430.1A (Life Cycle Asset Management) and DOE Order 420.1B (Facility Safety). The influence of RCM on the various aspects of the maintenance program including the work control process is also discussed.

Mohammadi, K

2009-02-04

389

Biomass preservation in impact melt ejecta  

NASA Astrophysics Data System (ADS)

Meteorites can have played a role in the delivery of the building blocks of life to Earth only if organic compounds are able to survive the high pressures and temperatures of an impact event. Although experimental impact studies have reported the survival of organic compounds, there are uncertainties in scaling experimental conditions to those of a meteorite impact on Earth and organic matter has not been found in highly shocked impact materials in a natural setting. Impact glass linked to the 1.2-km-diameter Darwin crater in western Tasmania is strewn over an area exceeding 400km2 and is thought to have been ejected by a meteorite impact about 800kyr ago into terrain consisting of rainforest and swamp. Here we use pyrolysis-gas chromatography-mass spectrometry to show that biomarkers representative of plant species in the local ecosystem--including cellulose, lignin, aliphatic biopolymer and protein remnants--survived the Darwin impact. We find that inside the impact glass the organic components are trapped in porous carbon spheres. We propose that the organic material was captured within impact melt and preserved when the melt quenched to glass, preventing organic decomposition since the impact. We suggest that organic material can survive capture and transport in products of extreme impact processing, at least for a Darwin-sized impact event.

Howard, Kieren Torres; Bailey, Melanie J.; Berhanu, Deborah; Bland, Phil A.; Cressey, Gordon; Howard, Lauren E.; Jeynes, Chris; Matthewman, Richard; Martins, Zita; Sephton, Mark A.; Stolojan, Vlad; Verchovsky, Sasha

2013-12-01

390

Energy Preserved Sampling for Compressed Sensing MRI  

PubMed Central

The sampling patterns, cost functions, and reconstruction algorithms play important roles in optimizing compressed sensing magnetic resonance imaging (CS-MRI). Simple random sampling patterns did not take into account the energy distribution in k-space and resulted in suboptimal reconstruction of MR images. Therefore, a variety of variable density (VD) based samplings patterns had been developed. To further improve it, we propose a novel energy preserving sampling (ePRESS) method. Besides, we improve the cost function by introducing phase correction and region of support matrix, and we propose iterative thresholding algorithm (ITA) to solve the improved cost function. We evaluate the proposed ePRESS sampling method, improved cost function, and ITA reconstruction algorithm by 2D digital phantom and 2D in vivo MR brains of healthy volunteers. These assessments demonstrate that the proposed ePRESS method performs better than VD, POWER, and BKO; the improved cost function can achieve better reconstruction quality than conventional cost function; and the ITA is faster than SISTA and is competitive with FISTA in terms of computation time. PMID:24971155

Peterson, Bradley S.; Ji, Genlin; Dong, Zhengchao

2014-01-01

391

Fossil oak galls preserve ancient multitrophic interactions  

PubMed Central

Trace fossils of insect feeding have contributed substantially to our understanding of the evolution of insect–plant interactions. The most complex phenotypes of herbivory are galls, whose diagnostic morphologies often allow the identification of the gall inducer. Although fossil insect-induced galls over 300?Myr old are known, most are two-dimensional impressions lacking adequate morphological detail either for the precise identification of the causer or for detection of the communities of specialist parasitoids and inquilines inhabiting modern plant galls. Here, we describe the first evidence for such multitrophic associations in Pleistocene fossil galls from the Eemian interglacial (130?000–115?000 years ago) of The Netherlands. The exceptionally well-preserved fossils can be attributed to extant species of Andricus gallwasps (Hymenoptera: Cynipidae) galling oaks (Quercus), and provide the first fossil evidence of gall attack by herbivorous inquiline gallwasps. Furthermore, phylogenetic placement of one fossil in a lineage showing obligate host plant alternation implies the presence of a second oak species, Quercus cerris, currently unknown from Eemian fossils in northwestern Europe. This contrasts with the southern European native range of Q. cerris in the current interglacial and suggests that gallwasp invasions following human planting of Q. cerris in northern Europe may represent a return to preglacial distribution limits. PMID:18559323

Stone, Graham N; van der Ham, Raymond W.J.M; Brewer, Jan G

2008-01-01

392

Fossil oak galls preserve ancient multitrophic interactions.  

PubMed

Trace fossils of insect feeding have contributed substantially to our understanding of the evolution of insect-plant interactions. The most complex phenotypes of herbivory are galls, whose diagnostic morphologies often allow the identification of the gall inducer. Although fossil insect-induced galls over 300Myr old are known, most are two-dimensional impressions lacking adequate morphological detail either for the precise identification of the causer or for detection of the communities of specialist parasitoids and inquilines inhabiting modern plant galls. Here, we describe the first evidence for such multitrophic associations in Pleistocene fossil galls from the Eemian interglacial (130000-115000 years ago) of The Netherlands. The exceptionally well-preserved fossils can be attributed to extant species of Andricus gallwasps (Hymenoptera: Cynipidae) galling oaks (Quercus), and provide the first fossil evidence of gall attack by herbivorous inquiline gallwasps. Furthermore, phylogenetic placement of one fossil in a lineage showing obligate host plant alternation implies the presence of a second oak species, Quercus cerris, currently unknown from Eemian fossils in northwestern Europe. This contrasts with the southern European native range of Q. cerris in the current interglacial and suggests that gallwasp invasions following human planting of Q. cerris in northern Europe may represent a return to preglacial distribution limits. PMID:18559323

Stone, Graham N; van der Ham, Raymond W J M; Brewer, Jan G

2008-10-01

393

Edge and color preserving single image superresolution  

NASA Astrophysics Data System (ADS)

Most existing superresolution (SR) techniques focus primarily on improving the quality in the luminance component of SR images, while paying less attention to the chrominance component. We present an edge and color preserving image SR approach. First, for the luminance channel, a heavy-tailed gradient distribution of natural images is investigated as an image prior. Then, an efficient optimization algorithm is developed to recover the latent high-resolution (HR) luminance component. Second, for the chrominance channels, we propose a two-stage framework for luminance-guided chrominance SR. In the first stage, since most of the shape and structural information is contained in the luminance channel, a simple Markov random field formulation is introduced to search the optimal direction for color local interpolation guided by HR luminance components. To further improve the quality of the chrominance channels, in the second stage, a nonlocal auto regression model is utilized to refine the initial HR chrominance. Finally, we combine the SR reconstructed luminance components with the generated HR chrominance maps to get the final SR color image. Systematic experimental results demonstrated that our method outperforms some state-of-the-art methods in terms of the peak signal-to-noise ratio, structural similarity, feature similarity, and the mean color errors.

Tang, Songze; Xiao, Liang; Liu, Pengfei; Zhang, Jun; Huang, Lili

2014-05-01

394

Preserving the Pyramid of STI Using Buckets  

NASA Technical Reports Server (NTRS)

The product of research projects is information. Through the life cycle of a project, information comes from many sources and takes many forms. Traditionally, this body of information is summarized in a formal publication, typically a journal article. While formal publications enjoy the benefits of peer review and technical editing, they are also often compromises in media format and length. As such, we consider a formal publication to represent an abstract to a larger body of work: a pyramid of scientific and technical information (STI). While this abstract may be sufficient for some applications, an in-depth use or analysis is likely to require the supporting layers from the pyramid. We have developed buckets to preserve this pyramid of STI. Buckets provide an archive- and protocol-independent container construct in which all related information objects can be logically grouped together, archived, and manipulated as a single object. Furthermore, buckets are active archival objects and can communicate with each other, people, or arbitrary network services. Buckets are an implementation of the Smart Object, Dumb Archive (SODA) DL model. In SODA, data objects are more important than the archives that hold them. Much of the functionality traditionally associated with archives is pushed down into the objects, such as enforcing terms and conditions, negotiating display, and content maintenance. In this paper, we discuss the motivation, design, and implication of bucket use in DLs with respect to grey literature.

Nelson, Michael L.; Maly, Kurt

2004-01-01

395

A Diffuse Interface Model with Immiscibility Preservation  

PubMed Central

A new, simple, and computationally efficient interface capturing scheme based on a diffuse interface approach is presented for simulation of compressible multiphase flows. Multi-fluid interfaces are represented using field variables (interface functions) with associated transport equations that are augmented, with respect to an established formulation, to enforce a selected interface thickness. The resulting interface region can be set just thick enough to be resolved by the underlying mesh and numerical method, yet thin enough to provide an efficient model for dynamics of well-resolved scales. A key advance in the present method is that the interface regularization is asymptotically compatible with the thermodynamic mixture laws of the mixture model upon which it is constructed. It incorporates first-order pressure and velocity non-equilibrium effects while preserving interface conditions for equilibrium flows, even within the thin diffused mixture region. We first quantify the improved convergence of this formulation in some widely used one-dimensional configurations, then show that it enables fundamentally better simulations of bubble dynamics. Demonstrations include both a spherical bubble collapse, which is shown to maintain excellent symmetry despite the Cartesian mesh, and a jetting bubble collapse adjacent a wall. Comparisons show that without the new formulation the jet is suppressed by numerical diffusion leading to qualitatively incorrect results. PMID:24058207

Tiwari, Arpit; Freund, Jonathan B.; Pantano, Carlos

2013-01-01

396

ROBOTICS AND BIOLOGY ROBOTICS AND BIOLOGY  

E-print Network

ROBOTICS AND BIOLOGY LABORATORY ROBOTICS AND BIOLOGY LABORATORY A Compliance-centric View of Grasping Clemens EPPNER Georg BARTELS Oliver BROCK TECHNICAL REPORT RBO-2012-01 of the Robotics and Biology robotic hand. We present a simple characterization of the relationship between hand com- pliance, object

397

Bioinformatics & Computational Biology  

E-print Network

Bioinformatics & Computational Biology Master of Science in Bioinformatics and Computational Biology (90 ECTS) Contact Information Programme administration Bioinformatics and Computational Biology University of Fribourg Chemin du Mus�e 10 CH - 1700 Fribourg info@bioinformatics.unifr.ch bioinformatics

Richner, Heinz

398

Questions about Biological Parents  

MedlinePLUS

... About Biological Parents Family Life Listen Questions About Biological Parents Article Body As you raise your adopted ... to her life—the fact that she has biological parents elsewhere—that may make it necessary for ...

399

High order finite difference WENO schemes with positivity-preserving limiter for correlated random walk with density-dependent turning rates  

E-print Network

, 91130016 and 91024025. 1 #12;1 Introduction In this paper, we consider the random walk model in biology the semilinear hyperbolic system of a correlated random walk model describing movement of animals and cells accuracy, positivity- preserving, correlated random walk 1 Department of Mathematics, University of Science

Shu, Chi-Wang

400

Evaluation of lactic acid bacteria, isolated from lightly preserved fish products, as starter cultures for new fish-based food products  

Microsoft Academic Search

Lactic acid bacteria suitable for fish fermentation were selected and their capacity as starter cultures in fish raw material was evaluated. Of 23 strains of lactic acid bacteria which were isolated from lightly preserved herring products and identified by the Biolog system mainly as Lactobacillus and Leuconostoc spp., three strains, which grew well at 5–10°C in the presence of food

Alexander Gelman; Vladimir Drabkin; Larisa Glatman

2000-01-01

401

APPLICATION OF TRADESCANTIA MICRONUCLEUS ASSAY FOR IN SITU EVALUATION OF POTENTIAL GENETIC HAZARDS FROM EXPOSURE TO CHEMICALS AT A WOOD PRESERVING SITE  

EPA Science Inventory

In situ evaluation of biological hazards from wood preserving chemicals at a hazardous waste site using the Tradescantia micronucleus assay (Trad-MCN) is reported in this study. he chemical analysis of soil samples from the site showed high contamination with arsenic (1,292 mg/kg...

402

Molecular mechanisms of tolerance in tardigrades: New perspectives for preservation and stabilization of biological material  

Microsoft Academic Search

Certain organisms found across a range of taxa, including bacteria, yeasts, plants and many invertebrates such as nematodes and tardigrades are able to survive almost complete loss of body water. The dry organisms may remain in this state, which is known as anhydrobiosis, for decades without apparent damage. When water again becomes available, they rapidly rehydrate and resume active life.

Ralph O. Schill; Brahim Mali; Thomas Dandekar; Martina Schnölzer; Dirk Reuter; Marcus Frohme

2009-01-01

403

Leslie Shao-ming Sun Field Station at Jasper Ridge Biological Preserve  

E-print Network

, the Leslie Shao-ming Sun Field Station was designed for an annual energy budget of net zero carbon emissions emissions for its annual energy budget. The use of renewable energy sources (the sun's resources are used to the energy efficiency of the Sun Field Station: Renewable Energy · 22kW grid-connected photovoltaic system

Straight, Aaron

404

Semantics-Preserving Model Migration Markus Herrmannsdoerfer and Maximilian Koegel  

E-print Network

the appropriate model migration, but also adapts the semantics definition. Semantics preservation is thus ensuredSemantics-Preserving Model Migration Markus Herrmannsdoerfer and Maximilian Koegel Institut f of infor- mation, the existing models need to be migrated. Manual migration is tedious and error

Bruegge, Bernd

405

5 CFR 2411.14 - Record retention and preservation.  

...2014-01-01 2014-01-01 false Record retention and preservation. 2411.14 Section...OFFICIAL INFORMATION § 2411.14 Record retention and preservation. The Authority...of all requested records, until such time as disposition or destruction is...

2014-01-01

406

CONNECTING PRESERVATION PLANNING AND PLATO WITH DIGITAL REPOSITORY INTERFACES  

E-print Network

CONNECTING PRESERVATION PLANNING AND PLATO WITH DIGITAL REPOSITORY INTERFACES Steve Hitchcock and possibly complex approach, supported by the Plato preservation planning tool developed by the Planets Plato can be integrated with digital repository software, in this case EPrints, to enable this powerful

Southampton, University of

407

Sedimentary organic matter preservation: an assessment and speculative synthesis  

Microsoft Academic Search

Throughout Earth history, almost all preserved organic matter has been incorporated in marine sediments deposited under oxygenated waters along continental margins. Given modern oceanic productivity and sediment burial rates of 50 × 1015 and 0.16 × 1015 gC yr?1, respectively, organic preservation in the marine environment is < 0.5% efficient. Although correlative information is often used to suggest that productivity,

John I. Hedges; Richard G. Keil

1995-01-01

408

APPROACHES FOR REMEDIATION OF UNCONTROLLED WOOD PRESERVING SITES  

EPA Science Inventory

This document provides an overview of remediation of uncontrolled wood preserving sites. It is, in part, a distillation of discussions that took place at a Forum on Wood Preserving Waste that was held in San Francisco, California, in October 1988. Information from this workshop h...

409

Farm and Forest Land Preservation with Conservation Easements  

E-print Network

of the Southern Regional Water Program. #12;2 Farm and Forest Land Preservation with Conservation Easements I of the conservation easement and the landowner's specific circumstances. What happens on the land affects both waterFarm and Forest Land Preservation with Conservation Easements by Christopher D. Clark1 Larry

410

Preservation of FFTF Data Related to Passive Safety Testing  

Microsoft Academic Search

One of the goals of the Fuel Cycle Research and Development Program (FCRD) is to preserve the knowledge that has been gained in the United States on Liquid Metal Reactors (LMR). A key area deserving special attention for preservation is the data relating to passive safety testing that was conducted in FFTF and EBR-II during the 1980s. Accidents at Unit

David W. Wootan; R. Scott Butner; Ronald P. Omberg; Bruce J. Makenas; Deborah L. Nielsen

2010-01-01

411

Assessment of heat treatment for nutrient preservation in seawater samples  

Microsoft Academic Search

Heat treatments, pasteurization and tyndallization, were tested as potential techniques for preservation of seawater samples for subsequent determination of nutrients (nitrate, nitrite, ammonia and phosphate), either for aquatic studies or for production of reference materials. The advantage over other methods is two-fold: there is no addition of preservative and no special equipment is required for sample storage. The effect of

Alain Aminot; Roger Kérouel

1997-01-01

412

Wildlife resources in creating the new Alaskan Parks and preserves  

Microsoft Academic Search

Legislation settling the Alaska Native Lands Claims also resulted in the establishment of ten new parks and preserves in Alaska. This settlement was the result of a long and often bitter legislative struggle between pro- and antidevelopment groups. The planning history of the Wrangell-St. Elias National Park and Preserve is used as a case example of this debate. One particular

R. Gerald Wright

1984-01-01

413

Orthopaedic Surgery Center of Joint Preservation and Replacement  

E-print Network

Orthopaedic Surgery Center of Joint Preservation and Replacement Hip Arthroscopy Postoperative or a cold pack on the front and side of your hip for 20 to 30 minutes several times a day to help reduce you. #12;Orthopaedic Surgery Center of Joint Preservation and Replacement Hip Arthroscopy

Kim, Duck O.

414

Privacy-preserving Collaborative Filtering for the Cloud  

Microsoft Academic Search

Rating-based collaborative filtering (CF) enables the prediction of the rating that a user will give to an item, based on the ratings of other items given by other users. However, doing this while preserving the privacy of rating data from individual users is a significant challenge. Several privacy preserving schemes have, so far been proposed in prior work. However, while

Anirban Basu; Jaideep Vaidya; Hiroaki Kikuchi; Theo Dimitrakos

2011-01-01

415

Privacy-Preserving Computation and Verification of Aggregate Queries on  

E-print Network

Privacy-Preserving Computation and Verification of Aggregate Queries on Outsourced Databases Brian. #12;2 PDAS: Privacy-Preserving Database-As-a-Service 1 Introduction Privacy concerns are still a major and cloud computing. An owner may choose to outsource the data, that is, to allow the data to be hosted

Lu, Chang

416

Efficient Privacy Preserving Key Management for Public Cloud  

E-print Network

Efficient Privacy Preserving Key Management for Public Cloud Networks ANITHA KATHIRVEL SIDDHARTH Privacy Preserving Key Management for Public Cloud Networks Anitha Kathirvel anithak@kth.se Siddharth are stored in a public cloud for storage and management purposes in a cloud computing environment. The major

Maguire Jr., Gerald Q.

417

1. 100872 Privacy-Preserving Query Processing in Cloud Computing  

E-print Network

* 1+ 1 2 1. 100872 2. Privacy-Preserving Query Processing in Cloud Computing HUO Zheng1(5)385-396. Abstract: A vital concern in cloud computing is how to protect both data privacy and query privacy while-party computation and authorization auditing techniques. Finally, the paper analyzes the challenges of privacy-preserving

418

Privacy-Preserving Public Auditing for Secure Cloud Storage  

E-print Network

1 Privacy-Preserving Public Auditing for Secure Cloud Storage Cong Wang, Student Member, IEEE burden to user. In this paper, we propose a secure cloud storage system supporting privacy-preserving of the outsourced data makes the data integrity protection in Cloud Computing a formidable task, especially

419

Privacy-Preserving Public Auditing for Secure Cloud Storage  

E-print Network

Privacy-Preserving Public Auditing for Secure Cloud Storage Cong Wang, Member, IEEE, Sherman S burden to user. In this paper, we propose a secure cloud storage system supporting privacy-preserving of the outsourced data makes the data integrity protection in cloud computing a formidable task, especially

Hou, Y. Thomas

420

Valve-Preserving Aortic Root Reconstruction: A Comparison Of Techniques  

Microsoft Academic Search

Background and aim of the study: Controversy exists with regard to the indications and technique for valve-preserving aortic root reconstruction. Here, the authors' clinical experience with three techniques is reported. Methods: Between October 1994 and October 2000, 71 patients (46 men, 25 women; median age 53 years; range: 21-81 years) underwent aortic root reconstruc- tion with preservation of the aortic

Harold M. Burkhart; Kenton J. Zehr; Hartzell V. Schaff; Richard C. Daly; Joseph A. Dearani; Thomas A. Orszulak

2003-01-01

421

FOOD PRESERVATION SERIES CornMichigan-grown corn is available  

E-print Network

FOOD PRESERVATION SERIES CornMichigan-grown corn is available August through September. yield hOW TO STORE QUICK AND EASY SERVING TIPS recipe Corn FOOD SAFETY TIPS One pound 5 medium ears of corn. 5 to 6 to preserve FREEZING WHOLE CORN KERNELS Select ears with plum, tender kernels and thin, sweet milk. Remove

422

Preserving and interpreting the landscape legacy of Thomas Dolliver Church  

Microsoft Academic Search

When one contemplates the great legacy of significant American gardens preserved for future generations, masterworks such as Thomas Jefferson's Monticello in Charlottesville, Virginia, Beatrix Farrand's Dumbarton Oaks in Washington, DC, and Jens Jensen's design for Eleanor and Edsel Ford's Fair Lane in Dearborn, Michigan, come to mind. When the preservation of modem residential landmarks is considered, one thinks of Frank

Charles A. Birnbaum

2000-01-01

423

National Center for Preservation Technology and Training (NCPTT)  

NSDL National Science Digital Library

The National Center for Preservation Technology and Training (NCPTT) site is designed for people interested in archeology, historic architecture, historic landscapes, materials conservation or history. It contains information about NCPTT programs; announcements of jobs, conferences, grants, and workshops; and a lot of links to other preservation-related Internet resources.

1998-01-01

424

The Role of Pylorus-Preserving Duodenopancreatectomy in Pancreatic Cancer  

Microsoft Academic Search

Although the history of duodenopancreatectomy is very old there is still an ongoing discussion on whether the pylorus-preserving type of duodenopancreatectomy should be done in patients with cancer of the pancreatic head. Recent data convincingly show a trend to consider the pylorus-preserving type of duodenopancreatectomy in pancreatic cancer as an excellent alternative. Though the experience with pancreatic cancer disease is

Ch. A. Seller; M. Wagner; M. W. Büchler

1994-01-01

425

EDGE-PRESERVING IMAGE RECONSTRUCTION FOR COHERENT IMAGING APPLICATIONS  

E-print Network

EDGE-PRESERVING IMAGE RECONSTRUCTION FOR COHERENT IMAGING APPLICATIONS M¨ujdat C¸etin , William C-preserving regularized reconstruction in coherent imaging systems. In our frame- work, image formation from measured data experimental results from three coherent imaging applications: digital holography, synthetic aperture radar

Willsky, Alan S.

426

Preserving Our Legacy for Future Generations of Educators  

ERIC Educational Resources Information Center

Preserving dance history for future generations includes documenting and maintaining the life and work of dance pioneers who today's dance educators can learn from and imitate. This article offers basic guidelines for conducting interviews; preserving valuable documentation, including photographs and recordings; and unearthing forgotten stories…

Hearn, Colleen Porter; Crabtree, Kacy E.

2008-01-01

427

The Foundation for The Preservation of Honey Bees, Inc.  

E-print Network

The Foundation for The Preservation of Honey Bees, Inc. SPONSORED BY THE AMERICAN BEEKEEPING AND RULES Sponsored by The Foundation for the Preservation of Honey Bees, Inc. AWARDS: Cash Prizes to 3 Top the national winners, receives an appropriate book about honey bees, beekeeping, or honey. TOPIC: For the 2012

Holsinger, Kent

428

THE ECONOMICS OF NON-GMO SEGREGATION AND IDENTITY PRESERVATION  

Microsoft Academic Search

We survey grain and soybean handlers and producers in the U.S. and EU to estimate costs of preserving the identities of GMO and non-GMO crops in marketing channels. We introduce our estimates into the IFPRI IMPACT model to simulate the effects of identity preservation on farm incomes and consumer well-being.

David S. Bullock; Marion Desquilbet; Elisavet I. Nitsi

2000-01-01

429

Impact of Surface Water Conditions on Preservative Leaching and  

E-print Network

assessments which indicated an elevated human health risk from arsenic (As) which could be ingested duringImpact of Surface Water Conditions on Preservative Leaching and Aquatic Toxicity from Treated Wood preservatives contain higher levels of copper (Cu) which can promote aquatic toxicity in natural water systems

Florida, University of

430

Fixed Space of Positive Trace-Preserving Super-Operators  

E-print Network

We examine the fixed space of positive trace-preserving super-operators. We describe a specific structure that this space must have and what the projection onto it must look like. We show how these results, in turn, lead to an alternative proof of the complete characterization of the fixed space of completely positive trace-preserving super-operators.

Ansis Rosmanis

2011-06-17

431

The eyes of trilobites: The oldest preserved visual system  

Microsoft Academic Search

The oldest preserved visual systems are to be found in the extinct trilobites, marine euarthropods which existed between about 520 and 250million years ago. Because they possessed a calcified cuticle, they have a good fossil record, and commonly the lens-bearing surfaces of their paired compound eyes are well preserved. The sublensar structures, however, remain unknown. Three kinds of eyes have

Euan Clarkson; Riccardo Levi-Setti; Gabor Horváth

2006-01-01

432

Structure-Preserving Model Order Reduction of RCL Circuit Equations  

E-print Network

Structure-Preserving Model Order Reduction of RCL Circuit Equations Roland W. Freund Department circuit. In this paper, we describe the problem of structure-preserving model order reduction of general-order model to maintain the passivity properties of the orig- inal circuit. In [23, 24, 4], it is shown

Freund, Roland W.

433

A Condensation Approach to Privacy Preserving Data Mining  

Microsoft Academic Search

In recent years, privacy preserving data mining has become an important problem because of the large amount of personal data which is tracked by many business applications. In many cases, users are unwilling to provide personal information unless the privacy of sensitive information is guaranteed. In this paper, we propose a new framework for privacy preserving data mining of multi-dimensional

Charu C. Aggarwal; Philip S. Yu

2004-01-01

434

The forensiX Evidence Collection Tube and Its Impact on DNA Preservation and Recovery  

PubMed Central

Biological samples are vulnerable to degradation from the time they are collected until they are analysed at the laboratory. Biological contaminants, such as bacteria, fungi, and enzymes, as well as environmental factors, such as sunlight, heat, and humidity, can increase the rate of DNA degradation. Currently, DNA samples are normally dried or frozen to limit their degradation prior to their arrival at the laboratory. In this study, the effect of the sample drying rate on DNA preservation was investigated, as well as a comparison between drying and freezing methods. The drying performances of two commercially available DNA collection tools (swab and drying tube) with different drying rates were evaluated. The swabs were used to collect human saliva, placed into the drying tubes, and stored in a controlled environment at 25°C and 60% relative humidity, or frozen at ?20°C, for 2 weeks. Swabs that were stored in fast sample drying tubes yielded 95% recoverable DNA, whereas swabs stored in tubes with slower sample drying rates yielded only 12% recoverable DNA; saliva stored in a microtube at ?20°C was used as a control. Thus, DNA sampling tools that offer rapid drying can significantly improve the preservation of DNA collected on a swab, increasing the quantity of DNA available for subsequent analysis. PMID:24288659

Garvin, Alex M.

2013-01-01

435

Sedimentary Parameters Controlling Occurrence and Preservation of Microbial Mats in Siliciclastic Depositional Systems  

NASA Technical Reports Server (NTRS)

Shallow-marine, siliciclastic depositional systems are governed by physical sedimentary processes. Mineral precipitation or penecontemporaneous cementation play minor roles. Today, coastal siliciclastic environments may be colonized by a variety of epibenthic, mat-forming cyanobacteria. Studies on microbial mats showed that they are not randomly distributed in modern tidal environments. Distribution and abundancy is mainly function of a particular sedimentary facies. Fine-grained sands composed of "clear" (translucent) quartz particles constitute preferred substrates for cyanobacteria. Mat-builders also favor sites characterized by moderate hydrodynamic flow regimes, which permit biomass enrichment and construction of mat fabrics without lethal burial of mat populations by fine sediments. A comparable facies relationship can be observed in ancient siliciclastic shelf successions from the terminal Neoproterozoic Nama Group, Namibia. Wrinkle structures that record microbial mats are present but sparsely distributed in mid- to inner shelf sandstones of the Nudaus Formation. The sporadic distribution of these structures reflects both the narrow ecological window that governs mat development and the distinctive taphonomic conditions needed to preserve the structures. These observations caution that statements about changing mat abundance across the Proterozoic-Cambrian boundary must be firmly rooted in paleoenvironmental and taphonomic analysis. Understanding the factors that influence the formation and preservation of microbial structures in siliciclastic regimes can facilitate exploration for biological signatures in Earth's oldest rocks. Moreover, insofar as these structures can be preserved on bedding surfaces and are not easily mimicked by physical processes, they constitute a set of biological markers that can be searched for on Mars by remotely controlled rovers.

Noffke, Nora; Knoll, Andrew H.

2001-01-01

436

Preservation and analysis of footprint evidence within the archaeological record: examples from Valsequillo and Cuatrocienegas, Mexico.  

NASA Astrophysics Data System (ADS)

Human footprints provide a direct record of human occupation and can be used to make a range of biometric inferences about the individuals which left them. In this paper we describe the application of three-dimensional optical laser scanning in the preservation and analysis both human and animal footprints. Optical laser scanning provides a digital elevation model of a print or surface with a vertical accuracy typically less than + 0.01 mm. Not only does this provide a procedure for recording fragile footprint evidence but allows digital measurements to be made. It is also possible to use the techniques developed for rapid proto-typing to recreate the print as solid models for visualisation. The role of optical laser scanning in the preservation of footprint evidence is explored with specific reference to the controversial footprints of the Valsequillo Basin in Central Mexico which may provide some of the earliest evidence of human colonization of the Americas. More importantly, digital footprint scans provide a basis for the numerical analysis of footprints allowing the tools of geometric morphometrics to be applied. These tools have been widely developed in the fields of biology and physical anthropology and used to explore the anatomical significance of shape. One key question that can be addressed using this approach is to develop a statistical approach to the objective recognition of a human footprint thereby helping to verify their interpretation and archaeological significance. Using footprint data from sites across the World a statistical model for the recognition of human footprints is presented and used to evaluate the controversial footprint site of Valsequillo, (Puebla State) preserved in volcanic ash and those in the Cuatrocienegas Basin, (Coahuila State) preserved in travertine.

Bennett, M.; Huddart, D.; Gonzalez, S.

2008-05-01

437

Preserving Ultra-Pure Uranium-233  

SciTech Connect

Uranium-233 ({sup 233}U) is a synthetic isotope of uranium formed under reactor conditions during neutron capture by natural thorium ({sup 232}Th). At high purities, this synthetic isotope serves as a crucial reference material for accurately quantifying and characterizing uranium-bearing materials assays and isotopic distributions for domestic and international nuclear safeguards. Separated, high purity {sup 233}U is stored in vaults at Oak Ridge National Laboratory (ORNL). These materials represent a broad spectrum of {sup 233}U from the standpoint of isotopic purity - the purest being crucial for precise analyses in safeguarding uranium. All {sup 233}U at ORNL is currently scheduled to be disposed of by down-blending with depleted uranium beginning in 2015. This will reduce safety concerns and security costs associated with storage. Down-blending this material will permanently destroy its potential value as a certified reference material for use in uranium analyses. Furthermore, no credible options exist for replacing {sup 233}U due to the lack of operating production capability and the high cost of restarting currently shut down capabilities. A study was commissioned to determine the need for preserving high-purity {sup 233}U. This study looked at the current supply and the historical and continuing domestic need for this crucial isotope. It examined the gap in supplies and uses to meet domestic needs and extrapolated them in the context of international safeguards and security activities - superimposed on the recognition that existing supplies are being depleted while candidate replacement material is being prepared for disposal. This study found that the total worldwide need by this projection is at least 850 g of certified {sup 233}U reference material over the next 50 years. This amount also includes a strategic reserve. To meet this need, 18 individual items totaling 959 g of {sup 233}U were identified as candidates for establishing a lasting supply of certified reference materials (CRM), all having an isotopic purity of at least 99.4% {sup 233}U and including materials up to 99.996% purity. Current plans include rescuing the purest {sup 233}U materials during a 3-year project beginning in FY 2012 in three phases involving preparations, handling preserved materials, and cleanup. The first year will involve preparations for handling the rescued material for sampling, analysis, distribution, and storage. Such preparations involve modifying or developing work control documents and physical preparations in the laboratory, which include preparing space for new material-handling equipment and procuring and (in some cases) refurbishing equipment needed for handling {sup 233}U or qualifying candidate CRM. Once preparations are complete, an evaluation of readiness will be conducted by independent reviewers to verify that the equipment, work controls, and personnel are ready for operations involving handling radioactive materials with nuclear criticality safety as well as radiological control requirements. The material-handling phase will begin in FY 2013 and be completed early in FY 2014, as currently scheduled. Material handling involves retrieving candidate CRM items from the ORNL storage facility and shipping them to another laboratory at ORNL; receiving and handling rescued items at the laboratory (including any needed initial processing, acquisition and analysis of samples from each item, and preparation for shipment); and shipping bulk material to destination labs or to a yet-to-be-designated storage location. There are seven groups of {sup 233}U identified for handling based on isotopic purity that require the utmost care to prevent cross-contamination. The last phase, cleanup, also will be completed in 2014. It involves cleaning and removing the equipment and material-handling boxes and characterizing, documenting, and disposing of waste. As part of initial planning, the cost of rescuing candidate {sup 233}U items was estimated roughly. The annualized costs were found to be $1,228K in FY 2012, $1,375K in FY 2013,

Krichinsky, Alan M [ORNL; Goldberg, Dr. Steven A. [DOE SC - Chicago Office; Hutcheon, Dr. Ian D. [Lawrence Livermore National Laboratory (LLNL)

2011-10-01

438

Approximation Preserving Reductions among Item Pricing Problems  

NASA Astrophysics Data System (ADS)

When a store sells items to customers, the store wishes to determine the prices of the items to maximize its profit. Intuitively, if the store sells the items with low (resp. high) prices, the customers buy more (resp. less) items, which provides less profit to the store. So it would be hard for the store to decide the prices of items. Assume that the store has a set V of n items and there is a set E of m customers who wish to buy those items, and also assume that each item i ? V has the production cost di and each customer ej ? E has the valuation vj on the bundle ej ? V of items. When the store sells an item i ? V at the price ri, the profit for the item i is pi = ri - di. The goal of the store is to decide the price of each item to maximize its total profit. We refer to this maximization problem as the item pricing problem. In most of the previous works, the item pricing problem was considered under the assumption that pi ? 0 for each i ? V, however, Balcan, et al. [In Proc. of WINE, LNCS 4858, 2007] introduced the notion of “loss-leader, ” and showed that the seller can get more total profit in the case that pi < 0 is allowed than in the case that pi < 0 is not allowed. In this paper, we derive approximation preserving reductions among several item pricing problems and show that all of them have algorithms with good approximation ratio.

Hamane, Ryoso; Itoh, Toshiya; Tomita, Kouhei

439

Klein, Cosmides, and CostabilePreserved Knowledge in Alzheimer's Dementia PRESERVED KNOWLEDGE OF SELF IN A CASE OF  

E-print Network

Klein, Cosmides, and CostabilePreserved Knowledge in Alzheimer's Dementia PRESERVED KNOWLEDGE OF SELF IN A CASE OF ALZHEIMER'S DEMENTIA Stanley B. Klein, Leda Cosmides, Kristi A. Costabile University.g., Klein, 2001; Klein, Rozendal, & Cosmides, 2002). These include: (a) episodic memories of one's own life

Cosmides, Leda

440

Synthetic biology: a Jewish view.  

PubMed

The discipline of synthetic biology may be one of the most dramatic advances of the past few decades. It represents a radical upgrading of humankind's ability to manipulate the world in which we live. The potential for benefits to society is enormous, but the risks for deliberate abuse or dangerous miscalculations are no less great. There are serious ethical issues, legitimate concerns for biosafety, and fears of bioterrorism. The ethical dilemmas posed are new and challenging and are being addressed by various groups and commissions. The present paper presents a Jewish approach to some of the ethical issues posed by this new technology. Judaism traditionally looks favorably on man as a co-creator with God and encourages research for the benefit of humankind. Thus it would have a positive attitude towards the current goals of synthetic biology. But in the Jewish tradition man is also charged with stewardship over nature and is admonished to preserve and nurture, not just to exploit and destroy. In line with the Presidential Commission on Bioethics, it would support a carefully weighed balance between the precautionary and the "proactionary" approaches. PMID:23502565

Glick, Shimon

2012-01-01

441

Preservation versus non-preservation of mitral valve apparatus during mitral valve replacement: a meta-analysis of 3835 patients  

PubMed Central

Resection of the chordopapillary apparatus during mitral valve replacement has been associated with a negative impact on survival. Mitral valve replacement with the preservation of the mitral valve apparatus has been associated with better outcomes, but surgeons remain refractory to its use. To determine if there is any real difference in preservation vs non-preservation of mitral valve apparatus during mitral valve replacement in terms of outcomes, we performed a systematic review and meta-analysis using MEDLINE, EMBASE, CENTRAL/CCTR, SciELO, LILACS, Google Scholar and reference lists of relevant articles to search for clinical studies that compared outcomes (30-day mortality, postoperative low cardiac output syndrome or 5-year mortality) between preservation vs non-preservation during mitral valve replacement from 1966 to 2011. The principal summary measures were odds ratios (ORs) with 95% confidence interval and P-values (that will be considered statistically significant when <0.05). The ORs were combined across studies using a weighted DerSimonian–Laird random-effects model. The meta-analysis was completed using the software Comprehensive Meta-Analysis version 2 (Biostat Inc., Englewood, NJ, USA). Twenty studies (3 randomized and 17 non-randomized) were identified and included a total of 3835 patients (1918 for mitral valve replacement preservation and 1917 for mitral valve replacement non-preservation). There was significant difference between mitral valve replacement preservation and mitral valve replacement non-preservation groups in the risk of 30-day mortality (OR 0.418, P <0.001), postoperative low cardiac output syndrome (OR 0.299, P <0.001) or 5-year mortality (OR 0.380, P <0.001). No publication bias or important heterogeneity of effects on any outcome was observed. In conclusion, we found evidence that argues in favour of the preservation of mitral valve apparatus during mitral valve replacement. PMID:23027596

Sa, Michel Pompeu Barros de Oliveira; Ferraz, Paulo Ernando; Escobar, Rodrigo Renda; Martins, Wendell Santos; de Araujo e Sa, Frederico Browne Correia; Lustosa, Pablo Cesar; Vasconcelos, Frederico Pires; Lima, Ricardo Carvalho

2012-01-01

442

Human Embryology & Developmental Biology  

E-print Network

Biology is the modern synthesis of biological and medical sciences that looks at how the tissuesBSc (Hons) Human Embryology & Developmental Biology DEGREE PROGRAMME GUIDE 2013-2014 #12;BSc (Hons) Human Embryology & Developmental Biology Introduction Degree Aims and Outcomes General Enquiries

Levi, Ran

443

Glossary of Marine Biology  

NSDL National Science Digital Library

This glossary of terms used in marine biology is associated with the textbook, Marine Biology, Function, Biodiversity, Ecology, by Jeffery Levinton (Oxford University Press, New York). It is associated with Marine Biology Web, which provides links to other marine biology topics.

444

Plant molecular biology in the space station era: utilization of KSC fixation tubes with RNAlater.  

PubMed

Spaceflight experiments involving biological specimens face unique challenges with regard to the on orbit harvest and preservation of material for later ground-based analyses. Preserving plant material for gene expression analyses requires that the tissue be prepared and stored in a manner that maintains the integrity of RNA. The liquid preservative RNAlater (Ambion) provides an effective alternative to conventional freezing strategies, which are limited or unavailable in current spaceflight experiment scenarios. The spaceflight use of RNAlater is enabled by the Kennedy space center fixation tube (KFT), hardware designed to provide the necessary containment of fixatives during the harvest and stowage of biological samples in space. Pairing RNAlater with the KFT system provides a safe and effective strategy for preserving plant material for subsequent molecular analyses, a strategy that has proven effective in several spaceflight experiments. Possible spaceflight scenarios for the use of RNAlater and KFTs are explored and discussed. PMID:15736319

Paul, Anna-Lisa; Levine, Howard G; McLamb, William; Norwood, Kelly L; Reed, David; Stutte, Gary W; Wells, H William; Ferl, Robert J

2005-03-01

445

Fossil preservation and the stratigraphic ranges of taxa.  

PubMed

The incompleteness of the fossil record hinders the inference of evolutionary rates and patterns. Here, we derive relationships among true taxonomic durations, preservation probability, and observed taxonomic ranges. We use these relationships to estimate original distributions of taxonomic durations, preservation probability, and completeness (proportion of taxa preserved), given only the observed ranges. No data on occurrences within the ranges of taxa are required. When preservation is random and the original distribution of durations is exponential, the inference of durations, preservability, and completeness is exact. However, reasonable approximations are possible given non-exponential duration distributions and temporal and taxonomic variation in preservability. Thus, the approaches we describe have great potential in studies of taphonomy, evolutionary rates and patterns, and genealogy. Analyses of Upper Cambrian-Lower Ordovician trilobite species, Paleozoic crinoid genera, Jurassic bivalve species, and Cenozoic mammal species yield the following results: (1) The preservation probability inferred from stratigraphic ranges alone agrees with that inferred from the analysis of stratigraphic gaps when data on the latter are available. (2) Whereas median durations based on simple tabulations of observed ranges are biased by stratigraphic resolution, our estimates of median duration, extinction rate, and completeness are not biased.(3) The shorter geologic ranges of mammalian species relative to those of bivalves cannot be attributed to a difference in preservation potential. However, we cannot rule out the contribution of taxonomic practice to this difference. (4) In the groups studied, completeness (proportion of species [trilobites, bivalves, mammals] or genera [crinoids] preserved) ranges from 60% to 90%. The higher estimates of completeness at smaller geographic scales support previous suggestions that the incompleteness of the fossil record reflects loss of fossiliferous rock more than failure of species to enter the fossil record in the first place. PMID:11539203

Foote, M; Raup, D M

1996-01-01

446

Fossil preservation and the stratigraphic ranges of taxa  

NASA Technical Reports Server (NTRS)

The incompleteness of the fossil record hinders the inference of evolutionary rates and patterns. Here, we derive relationships among true taxonomic durations, preservation probability, and observed taxonomic ranges. We use these relationships to estimate original distributions of taxonomic durations, preservation probability, and completeness (proportion of taxa preserved), given only the observed ranges. No data on occurrences within the ranges of taxa are required. When preservation is random and the original distribution of durations is exponential, the inference of durations, preservability, and completeness is exact. However, reasonable approximations are possible given non-exponential duration distributions and temporal and taxonomic variation in preservability. Thus, the approaches we describe have great potential in studies of taphonomy, evolutionary rates and patterns, and genealogy. Analyses of Upper Cambrian-Lower Ordovician trilobite species, Paleozoic crinoid genera, Jurassic bivalve species, and Cenozoic mammal species yield the following results: (1) The preservation probability inferred from stratigraphic ranges alone agrees with that inferred from the analysis of stratigraphic gaps when data on the latter are available. (2) Whereas median durations based on simple tabulations of observed ranges are biased by stratigraphic resolution, our estimates of median duration, extinction rate, and completeness are not biased.(3) The shorter geologic ranges of mammalian species relative to those of bivalves cannot be attributed to a difference in preservation potential. However, we cannot rule out the contribution of taxonomic practice to this difference. (4) In the groups studied, completeness (proportion of species [trilobites, bivalves, mammals] or genera [crinoids] preserved) ranges from 60% to 90%. The higher estimates of completeness at smaller geographic scales support previous suggestions that the incompleteness of the fossil record reflects loss of fossiliferous rock more than failure of species to enter the fossil record in the first place.

Foote, M.; Raup, D. M.

1996-01-01

447

Effect of distance on the preservation value of water quality  

SciTech Connect

In the past dozen years, an extensive body of literature has developed on the willingness to pay for water quality, in particular, its recreation use and nonuse preservation values. This paper illustrates a procedure for estimating the effect of distance on the preservation value of environmental quality using the contingent valuation approach. The case considered is the potential degradation of water quality due to coal mining activity in the Flathead River drainage system, Montana. The analysis supports a negative association for this particular study area. The effect of distance on preservation value was considered both directly and indirectly through its effect on visits. 36 references, 2 tables.

Sutherland, R.J.; Walsh, R.G.

1985-08-01

448

Wildlife resources in creating the new Alaskan Parks and preserves  

NASA Astrophysics Data System (ADS)

Legislation settling the Alaska Native Lands Claims also resulted in the establishment of ten new parks and preserves in Alaska. This settlement was the result of a long and often bitter legislative struggle between pro- and antidevelopment groups. The planning history of the Wrangell-St. Elias National Park and Preserve is used as a case example of this debate. One particular source of conflict was the curtailment of sport hunting that would result under national park classification. A preserve classification was introduced to resolve this conflict. Data on wildlife resources and sport hunting were instrumental in defining the areas so classified.

Wright, R. Gerald

1984-03-01

449

Preservation of left ventricular function in mitral valve surgery.  

PubMed Central

Surgery for degenerative mitral regurgitation has become complex. Preservation of annulo-ventricular continuity through the chordae tendineae is an important determinant of operative survival, postoperative left ventricular function, long-term survival, and quality of life. Some cardiologists believe that NYHA I function is never achieved after conventional mitral replacement with chordal transection. Valve repair is the procedure of choice but when valve replacement is inevitable every effort should be made to preserve the posterior leaflet and its chordal attachments. Valve replacement with preservation of the subvalvar apparatus provides a functional outcome similar to that after valve repair but usually leads to life long anti-coagulation. Images PMID:8705754

Westaby, S.

1996-01-01

450

Scaling Brain Size, Keeping Timing: Evolutionary Preservation of Brain Rhythms  

PubMed Central

Despite the several-thousand-fold increase of brain volume during the course of mammalian evolution, the hierarchy of brain oscillations remains remarkably preserved, allowing for multiple-time-scale communication within and across neuronal networks at approximately the same speed, irrespective of brain size. Deployment of large-diameter axons of long-range neurons could be a key factor in the preserved time management in growing brains. We discuss the consequences of such preserved network constellation in mental disease, drug discovery, and interventional therapies. PMID:24183025

Buzsáki, György; Logothetis, Nikos; Singer, Wolf

2014-01-01

451

Metadata For Digital Preservation: The Cedars Outline Specification  

NSDL National Science Digital Library

The Cedars Project, a Higher Education initiative funded by the Joint Information Systems Committee, based at Oxford, Cambridge, and the University of Leeds, has posted online its "outline specification for metadata to ensure long-term preservation for digital materials." The 33-page .pdf document details the Project's approach to preserving data as part of the Cedars Demonstrator Project and serves "to contribute on a strategic level to the international collaborative development of a standard specification for digital preservation metadata." This draft version has been made available for public commentary; the final version is due out this summer.

452

Biological warfare agents  

Microsoft Academic Search

\\u000a Biological warfare agents are a group of pathogens and toxins of biological origin that can be potentially misused for military\\u000a or criminal purposes. The present review attempts to summarize necessary knowledge about biological warfare agents. The historical\\u000a aspects, examples of applications of these agents such as anthrax letters, biological weapons impact, a summary of biological\\u000a warfare agents and epidemiology of

Miroslav Pohanka; Kamil Ku?a

453

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIO 102 GENERAL BIOLOGY II Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIO 101 GENERAL BIOLOGY I Introductory Chemistry with labs Chemistry 107 AND INTRODUCTORY

Suzuki, Masatsugu

454

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BI 202 GENERAL BIOLOGY II Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BI 201 GENERAL BIOLOGY I Introductory Chemistry with labs Chemistry 107 AND INTRODUCTORY CHEMISTRY

Suzuki, Masatsugu

455

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIOL 105 GENERAL BIOLOGY II Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIOL 104 GENERAL BIOLOGY I Introductory Chemistry with labs Chemistry 107 AND INTRODUCTORY

Suzuki, Masatsugu

456

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIO 106H GENERAL BIOLOGY II HONORS Biology 118 INTRODUCTION TO CELLULAR AND MOLECULAR BIOLOGY BIO 105H GENERAL BIOLOGY I HONORS Introductory Chemistry with labs Chemistry 107

Suzuki, Masatsugu

457

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIO 152 GENERAL BIOLOGY I Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIO 151 GENERAL BIOLOGY II Introductory Chemistry with labs Chemistry 107 AND INTRODUCTORY

Suzuki, Masatsugu

458

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIOL 117 + BIOL 118 GENERAL BIOLOGY II and LAB Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIOL 115 + BIOL 116 GENERAL BIOLOGY I and LAB Introductory Chemistry

Suzuki, Masatsugu

459

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIO 01400 GENERAL BIOLOGY II Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIO 01300 GENERAL BIOLOGY I Introductory Chemistry with labs Chemistry 107 AND INTRODUCTORY

Suzuki, Masatsugu

460

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIO 132 PRINCIPLES OF BIOLOGY 2 Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIO 131 PRINCIPLES OF BIOLOGY 1 Introductory Chemistry with labs Chemistry 107

Suzuki, Masatsugu

461

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BI 102 GENERAL BIOLOGY 2 Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BI 101 GENERAL BIOLOGY 1 Introductory Chemistry with labs Chemistry 107 AND INTRODUCTORY CHEMISTRY

Suzuki, Masatsugu

462

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIO 1580 PRINCIPLES OF BIOLOGY II Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIO 1570 PRINCIPLES OF BIOLOGY I Introductory Chemistry with labs Chemistry 107

Suzuki, Masatsugu

463

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIO 116 GENERAL BIOLOGY 2 Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIO 115 GENERAL BIOLOGY 1 Introductory Chemistry with labs Chemistry 107 AND INTRODUCTORY

Suzuki, Masatsugu

464

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIOL 1520 GENERAL BIOLOGY II Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIOL 1510 GENERAL BIOLOGY I Introductory Chemistry with labs Chemistry 107 AND INTRODUCTORY

Suzuki, Masatsugu

465

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIO 156 GENERAL BIOLOGY II Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIO 155 GENERAL BIOLOGY I Introductory Chemistry with labs Chemistry 107 AND INTRODUCTORY

Suzuki, Masatsugu

466

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY SC 139 INTRODUCTORY BIOLOGY: ANIMALS AND PLANTS Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY SC 135 INTRODUCTORY BIOLOGY: MOLECULES AND CELLS Introductory Chemistry

Suzuki, Masatsugu

467

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIO 220 BIOLOGY II Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIO 210 BIOLOGY I Introductory Chemistry with labs Chemistry 107 AND INTRODUCTORY CHEMISTRY I CHE 201

Suzuki, Masatsugu

468

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BI 102 GENERAL BIOLOGY II Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BI 101 GENERAL BIOLOGY I Introductory Chemistry with labs Chemistry 107 AND INTRODUCTORY CHEMISTRY

Suzuki, Masatsugu

469

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIO 110 PRINCIPLES OF BIOLOGY II Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIO 109 PRINCIPLES OF BIOLOGY I Introductory Chemistry with labs Chemistry 107

Suzuki, Masatsugu

470

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIO 117 PRINCIPLES OF BIOLOGY I Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIO 118 PRINCIPLES OF BIOLOGY II Introductory Chemistry with labs Chemistry 107

Suzuki, Masatsugu

471

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIO 152 / BY 52 MODERN BIOLOGY II Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIO 150 / BY 50 MODERN BIOLOGY I Introductory Chemistry with labs Chemistry 107

Suzuki, Masatsugu

472

BIOLOGY MAJOR First two years  

E-print Network

BIOLOGY MAJOR First two years Introductory Biology with labs Biology 117 AND INTRODUCTION TO ORGANISMAL AND POPULATION BIOLOGY BIOL 102 GENERAL BIOLOGY II Biology 118 INTRODUCTION TO CELL AND MOLECULAR BIOLOGY BIOL 101 GENERAL BIOLOGY I Introductory Chemistry with labs Chemistry 107 AND INTRODUCTORY

Suzuki, Masatsugu

473

Biology & Biomedical Sciences ACADEMIC PROGRAM  

E-print Network

Biology & Biomedical Sciences ACADEMIC PROGRAM GUIDELINES Programs in Cell & Molecular Biology Developmental, Regenerative and Stem Cell Biology Molecular Cell Biology Molecular Genetics & Genomics Molecular Microbiology & Microbial Pathogenesis #12;PAGE 2 GUIDELINES TO THE PROGRAMS IN CELL AND MOLECULAR BIOLOGY

Stormo, Gary

474

32 CFR 516.24 - Preservation of evidence.  

Code of Federal Regulations, 2010 CFR

... National Defense Department of Defense (Continued) DEPARTMENT OF THE ARMY AID OF CIVIL AUTHORITIES AND PUBLIC RELATIONS LITIGATION Reporting Legal Proceedings to HQDA § 516.24 Preservation of evidence. Because...

2010-07-01

475

31 CFR 91.4 - Preservation of property.  

Code of Federal Regulations, 2010 CFR

...and Finance: Treasury Regulations Relating to Money and Finance REGULATIONS GOVERNING CONDUCT IN OR ON THE BUREAU OF THE MINT BUILDINGS AND GROUNDS § 91.4 Preservation of property. It shall be unlawful for any person without proper authority...

2010-07-01

476

36 CFR 79.5 - Management and preservation of collections.  

Code of Federal Regulations, 2010 CFR

... 79.5 Section 79.5 Parks, Forests, and Public Property NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR CURATION OF FEDERALLY-OWNED AND ADMINISTERED ARCHAEOLOGICAL COLLECTIONS § 79.5 Management and preservation of...

2010-07-01

477

Connecting Preservation Planning and Plato with Digital Repository Interfaces  

E-print Network

Connecting Preservation Planning and Plato with Digital Repository Interfaces David Tarrant Multiple Services Flexible Decision Logic #12;DROID in the Repository Identification #12;JHove in Plato #12;Plato Planning #12;The Action Plan

Southampton, University of

478

Preservation Planning with Plato Hannes Kulovits, Andreas Rauber  

E-print Network

Preservation Planning with Plato © Hannes Kulovits, Andreas Rauber Vienna University of Technology can be held accountable for, will be discussed. Additionally, we will present Plato, a software tool

479

Rethinking drug policy: an integrity preserving compromise position  

E-print Network

The "War on Drugs" has been raging for twenty years without resolution. This work attempts to provide a compromise position between the prohibitionists and the legalizers that preserves the integrity of both positions. This compromise position...

Crispino, Azzurra

2006-10-30

480

15 CFR 923.22 - Areas for preservation or restoration.  

Code of Federal Regulations, 2010 CFR

...procedures whereby specific areas may be designated for the purpose of preserving or restoring them for their conservation, recreational, ecological, historical or esthetic values, and the criteria for such...

2010-01-01

481

Gapped symmetry preserving surface state for the electron topological insulator  

E-print Network

It is well known that the three-dimensional (3D) electronic topological insulator (TI) with charge-conservation and time-reversal symmetry cannot have a trivial insulating surface that preserves symmetry. It is often ...

Wang, Chong

482

EMISSIONS AND RESIDUE VALUES FROM WASTE DISPOSAL DURING WOOD PRESERVING  

EPA Science Inventory

This document reports emissions and residue that were measured from thermal (pan) evaporation, spray pond evaporation, and direct combustion of organic components in wood preserving wastewater. The information presented includes plant and evaporation device descriptions, test pla...

483

PRESERVATIVE LEACHING FROM WEATHERED CCA-TREATED WOOD  

EPA Science Inventory

Disposal of discarded CCA-treated wood in landfills raises concerns with respect to leaching of preservative compounds. When unweathered CCA-treated wood is leached using the toxicity characteristic leaching procedure (TCLP), arsenic concentrations exceed the toxicity characteris...

484

Fertility Preservation for Prepubertal Girls: Update and Current Challenges  

PubMed Central

With increasing rates of diagnosis of childhood cancers and the evolution of more effective treatment options resulting in prolonged life spans, fertility preservation counseling is an integral component of the discussion at the time of diagnosis of childhood cancers. The primary fertility preservation option that exists for prepubertal girls is ovarian tissue cryopreservation. Although ovarian tissue cryopreservation is still considered to be experimental in nature, live births have resulted from orthotopic tissue transplantation. Fertility preservation should be offered to all prepubertal girls at high-risk for premature ovarian failure as a result of gonadotoxic treatment. Ethical and legal questions surrounding these issues must be considered as more and more pediatric patients pursue fertility preservation. PMID:25110617

Resetkova, Nina; Hayashi, Masanori; Kolp, Lisa A.

2014-01-01

485

ENVIRONMENTALLY FRIENDLY BORATE-BASED WOOD PRESERVATIVE - PHASE I  

EPA Science Inventory

This natural organic retention project proposes using lignin from emerging biorefineries to allow borates to be used as wood preservatives for exterior applications exposed to rain. Enhancing the retention of environmentally friendly borates has been the “holy grail...

486

CONTAMINANTS AND REMEDIAL OPTIONS AT WOOD PRESERVING SITES  

EPA Science Inventory

This document provides information that facilitates characterization of the site and selection of treatment technologies at wood preserving sites, to meet the regulations? acceptable cleanup levels. It does not provide risk-assessment information or policy guidance related to det...

487

An Overview of the U.S. Wood Preserving Industry  

E-print Network

· Concluding Comments #12;The motivation for this studyThe motivation for this study was to develop operations provided by the Southern Forestwood preserving operations provided by the Southern Forest Products

488

Toward the Development of Ethical Guidelines for Family Preservation  

Microsoft Academic Search

Family preservation workers need a standard set of ethical guidelines to assist them in providing their service in a proper manner. This paper describes how ethical codes have been developed for the \\

Dosser David A. Jr; Richard J. Shaffir; Michaux M. Shaffir; De Vault Clevenger; Dustin K. Jeffiries

1996-01-01

489

36 CFR 7.85 - Big Thicket National Preserve.  

... § 7.85 Big Thicket National Preserve. (a) Hunting. Except as otherwise provided in this section, hunting is permitted in accordance with § 2.2 of this chapter. (1) Hunting is permitted only during designated seasons,...

2014-07-01

490

Hermetically sealed encasements for historic document display and preservation  

E-print Network

The goal of this thesis was to develop designs and methods for the preservation and display of historic documents. The results were applied via the design, manufacture, and installation of five hermetic display encasements ...

Durand, Keith (Keith V.)

2011-01-01

491

27 CFR 25.300 - Retention and preservation of records.  

Code of Federal Regulations, 2011 CFR

... Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY LIQUORS BEER Records and Reports § 25.300 Retention and preservation of records. (a) Place of maintenance. Records...

2011-04-01

492

27 CFR 25.300 - Retention and preservation of records.  

... Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY ALCOHOL BEER Records and Reports § 25.300 Retention and preservation of records. (a) Place of maintenance. Records...

2014-04-01

493

27 CFR 25.300 - Retention and preservation of records.  

Code of Federal Regulations, 2012 CFR

... Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY LIQUORS BEER Records and Reports § 25.300 Retention and preservation of records. (a) Place of maintenance. Records...

2012-04-01

494

7 CFR 501.3 - Preservation of property.  

Code of Federal Regulations, 2010 CFR

...Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL RESEARCH SERVICE, DEPARTMENT OF AGRICULTURE CONDUCT ON U.S. MEAT ANIMAL RESEARCH CENTER, CLAY CENTER, NEBRASKA § 501.3 Preservation of property....

2010-01-01

495

7 CFR 503.3 - Preservation of property.  

...Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL RESEARCH SERVICE, DEPARTMENT OF AGRICULTURE CONDUCT ON PLUM ISLAND ANIMAL DISEASE CENTER § 503.3 Preservation of property. The willful...

2014-01-01

496

7 CFR 501.3 - Preservation of property.  

...Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL RESEARCH SERVICE, DEPARTMENT OF AGRICULTURE CONDUCT ON U.S. MEAT ANIMAL RESEARCH CENTER, CLAY CENTER, NEBRASKA § 501.3 Preservation of property....

2014-01-01

497

7 CFR 501.3 - Preservation of property.  

Code of Federal Regulations, 2011 CFR

...Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL RESEARCH SERVICE, DEPARTMENT OF AGRICULTURE CONDUCT ON U.S. MEAT ANIMAL RESEARCH CENTER, CLAY CENTER, NEBRASKA § 501.3 Preservation of property....

2011-01-01

498

7 CFR 503.3 - Preservation of property.  

Code of Federal Regulations, 2012 CFR

...Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL RESEARCH SERVICE, DEPARTMENT OF AGRICULTURE CONDUCT ON PLUM ISLAND ANIMAL DISEASE CENTER § 503.3 Preservation of property. The willful...

2012-01-01

499

7 CFR 503.3 - Preservation of property.  

Code of Federal Regulations, 2010 CFR

...Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL RESEARCH SERVICE, DEPARTMENT OF AGRICULTURE CONDUCT ON PLUM ISLAND ANIMAL DISEASE CENTER § 503.3 Preservation of property. The willful...

2010-01-01

500

7 CFR 503.3 - Preservation of property.  

Code of Federal Regulations, 2011 CFR

...Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL RESEARCH SERVICE, DEPARTMENT OF AGRICULTURE CONDUCT ON PLUM ISLAND ANIMAL DISEASE CENTER § 503.3 Preservation of property. The willful...

2011-01-01