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Showing 1 to 12 of 32 entries
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Second-harmonic generation in zinc tris(thiourea) sulfate.

Applied optics

Marcy HO, Warren LF, Webb MS, Ebbers CA, Velsko SP, Kennedy GC, Catella GC.
PMID: 20733672
Appl Opt. 1992 Aug 20;31(24):5051-60. doi: 10.1364/AO.31.005051.

The linear and second-order nonlinear optical properties of single-crystal zinc tris(thiourea) sulfate, or ZTS, are determined. The deduced nonlinear coefficients are |d(31)| = 0.31, |d(32)| = 0.35, and |d(33)| = 0.23 pm/V compared with a |d(14)| value of 0.39...

Cytokine response patterns to complex biofilms by mononuclear cells discriminate patient disease status and biofilm dysbiosis.

Journal of oral microbiology

Velsko IM, Cruz-Almeida Y, Huang H, Wallet SM, Shaddox LM.
PMID: 28748035
J Oral Microbiol. 2017 Jun 12;9(1):1330645. doi: 10.1080/20002297.2017.1330645. eCollection 2017.

Localized aggressive periodontitis (LAP) is a rare form of periodontal disease with site-specific rapid tissue destruction. A lipopolysaccharide (LPS) hyper-inflammatory response was shown in LAP using peripheral whole blood, although responses to other bacterial surface components or complex oral...

Population gene introgression and high genome plasticity for the zoonotic pathogen Streptococcus agalactiae.

Molecular biology and evolution

Richards VP, Velsko IM, Alam T, Zadoks RN, Manning SD, Pavinski Bitar PD, Hasler HB, Crestani C, Springer G, Probert B, Town CD, Stanhope MJ.
PMID: 31350563
Mol Biol Evol. 2019 Jul 27; doi: 10.1093/molbev/msz169. Epub 2019 Jul 27.

The influence that bacterial adaptation (or niche partitioning) within species has on gene spillover and transmission among bacteria populations occupying different niches is not well understood. Streptococcus agalactiae is an important bacterial pathogen that has a taxonomically diverse host...

Ancient Metagenomic Studies: Considerations for the Wider Scientific Community.

mSystems

Der Sarkissian C, Velsko IM, Fotakis AK, Vågene ÅJ, Hübner A, Fellows Yates JA.
PMID: 34931883
mSystems. 2021 Dec 21;6(6):e0131521. doi: 10.1128/msystems.01315-21. Epub 2021 Dec 21.

Like modern metagenomics, ancient metagenomics is a highly data-rich discipline, with the added challenge that the DNA of interest is degraded and, depending on the sample type, in low abundance. This requires the application of specialized measures during molecular...

Selection of Appropriate Metagenome Taxonomic Classifiers for Ancient Microbiome Research.

mSystems

Velsko IM, Frantz LAF, Herbig A, Larson G, Warinner C.
PMID: 30035235
mSystems. 2018 Jul 17;3(4). doi: 10.1128/mSystems.00080-18. eCollection 2018.

Metagenomics enables the study of complex microbial communities from myriad sources, including the remains of oral and gut microbiota preserved in archaeological dental calculus and paleofeces, respectively. While accurate taxonomic assignment is essential to this process, DNA damage characteristic...

The dental calculus metabolome in modern and historic samples.

Metabolomics : Official journal of the Metabolomic Society

Velsko IM, Overmyer KA, Speller C, Klaus L, Collins MJ, Loe L, Frantz LAF, Sankaranarayanan K, Lewis CM, Martinez JBR, Chaves E, Coon JJ, Larson G, Warinner C.
PMID: 29046620
Metabolomics. 2017;13(11):134. doi: 10.1007/s11306-017-1270-3. Epub 2017 Oct 03.

INTRODUCTION: Dental calculus is a mineralized microbial dental plaque biofilm that forms throughout life by precipitation of salivary calcium salts. Successive cycles of dental plaque growth and calcification make it an unusually well-preserved, long-term record of host-microbial interaction in...

Diamond turning of L-arginine phosphate, a new organic nonlinear crystal.

Applied optics

Fuchs BA, Syn CK, Velsko SP.
PMID: 20555896
Appl Opt. 1989 Oct 15;28(20):4465-72. doi: 10.1364/AO.28.004465.

We have demonstrated that single point diamond turning can be used to generate high optical quality finished surfaces on a new organic nonlinear crystal, L-arginine phosphate (LAP). The proper choice of cutting conditions can produce surfaces with

Planning for exercises of chemical, biological, radiological, and nuclear (CBRN) forensic capabilities.

Biosecurity and bioterrorism : biodefense strategy, practice, and science

Reutter D, Schutzer SE, Craft CM, Fletcher J, Fricke FL, Holowachuk SA, Johnson RC, Keim PS, Pearson JL, Sibert RW, Velsko S.
PMID: 21142761
Biosecur Bioterror. 2010 Dec;8(4):343-55. doi: 10.1089/bsp.2010.0023.

A forensic capability to help identify perpetrators and exclude innocent people should be an integral part of a strategy against terrorist attacks. Exercises have been conducted to increase our preparedness and response capabilities to chemical, biological, radiological, and nuclear...

Ancient Metagenomic Studies: Considerations for the Wider Scientific Community.

mSystems

Der Sarkissian C, Velsko IM, Fotakis AK, Vågene ÅJ, Hübner A, Fellows Yates JA.
PMID: 34931883
mSystems. 2021 Dec 21;6(6):e0131521. doi: 10.1128/msystems.01315-21. Epub 2021 Dec 21.

Like modern metagenomics, ancient metagenomics is a highly data-rich discipline, with the added challenge that the DNA of interest is degraded and, depending on the sample type, in low abundance. This requires the application of specialized measures during molecular...

Determination of relative krypton fission product yields from 14 MeV neutron induced fission of .

The Review of scientific instruments

Edwards ER, Cassata WS, Velsko CA, Yeamans CB, Shaughnessy DA.
PMID: 27910394
Rev Sci Instrum. 2016 Nov;87(11):11D838. doi: 10.1063/1.4963155.

Precisely-known fission yield distributions are needed to determine a fissioning isotope and the incident neutron energy in nuclear security applications. 14 MeV neutrons from DT fusion at the National Ignition Facility induce fission in depleted uranium contained in the...

A recoverable gas-cell diagnostic for the National Ignition Facility.

The Review of scientific instruments

Ratkiewicz A, Berzak Hopkins L, Bleuel DL, Bernstein LA, van Bibber K, Cassata WS, Goldblum BL, Siem S, Velsko CA, Wiedeking M, Yeamans CB.
PMID: 27910358
Rev Sci Instrum. 2016 Nov;87(11):11D825. doi: 10.1063/1.4961278.

The high-fluence neutron spectrum produced by the National Ignition Facility (NIF) provides an opportunity to measure the activation of materials by fast-spectrum neutrons. A new large-volume gas-cell diagnostic has been designed and qualified to measure the activation of gaseous...

Community-curated and standardised metadata of published ancient metagenomic samples with AncientMetagenomeDir.

Scientific data

Fellows Yates JA, Andrades Valtueña A, Vågene ÅJ, Cribdon B, Velsko IM, Borry M, Bravo-Lopez MJ, Fernandez-Guerra A, Green EJ, Ramachandran SL, Heintzman PD, Spyrou MA, Hübner A, Gancz AS, Hider J, Allshouse AF, Zaro V, Warinner C.
PMID: 33500403
Sci Data. 2021 Jan 26;8(1):31. doi: 10.1038/s41597-021-00816-y.

Ancient DNA and RNA are valuable data sources for a wide range of disciplines. Within the field of ancient metagenomics, the number of published genetic datasets has risen dramatically in recent years, and tracking this data for reuse is...

Showing 1 to 12 of 32 entries