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Bacterial Community Development in Experimental Gingivitis

James O. Kistler, Veronica Booth, David J. Bradshaw, William G. Wade, Michael Glogauer
2013 PLoS ONE  
Current knowledge of the microbial composition of dental plaque in early gingivitis is based largely on microscopy and cultural methods, which do not provide a comprehensive description of oral microbial communities. This study used 454pyrosequencing of the V1-V3 region of 16S rRNA genes (approximately 500 bp), and bacterial culture, to characterize the composition of plaque during the transition from periodontal health to gingivitis. A total of 20 healthy volunteers abstained from oral hygiene
more » ... for two weeks, allowing plaque to accumulate and gingivitis to develop. Plaque samples were analyzed at baseline, and after one and two weeks. In addition, plaque samples from 20 chronic periodontitis patients were analyzed for cross-sectional comparison to the experimental gingivitis cohort. All of the healthy volunteers developed gingivitis after two weeks. Pyrosequencing yielded a final total of 344 267 sequences after filtering, with a mean length of 354 bases, that were clustered into an average of 299 species-level Operational Taxonomic Units (OTUs) per sample. Principal coordinates analysis (PCoA) plots revealed significant shifts in the bacterial community structure of plaque as gingivitis was induced, and community diversity increased significantly after two weeks. Changes in the relative abundance of OTUs during the transition from health to gingivitis were correlated to bleeding on probing (BoP) scores and resulted in the identification of new health-and gingivitis-associated taxa. Comparison of the healthy volunteers to the periodontitis patients also confirmed the association of a number of putative periodontal pathogens with chronic periodontitis. Taxa associated with gingivitis included Fusobacterium nucleatum subsp. polymorphum, Lachnospiraceae [G-2] sp. HOT100, Lautropia sp. HOTA94, and Prevotella oulorum, whilst Rothia dentocariosa was associated with periodontal health. Further study of these taxa is warranted and may lead to new therapeutic approaches to prevent periodontal disease.
doi:10.1371/journal.pone.0071227 pmid:23967169 pmcid:PMC3743832 fatcat:yjsxb57tczfanjmnydhcrqatfu

Disconnected operation in the Coda File System

James J. Kistler, M. Satyanarayanan
1992 ACM Transactions on Computer Systems  
J. J. Kistler and M.  ...  J. J Kistler and M Satyanarayanan IT Venus 1 I - to Coda servers Fig.2.  ... 
doi:10.1145/146941.146942 fatcat:7e7evjr3ybcfzpgjbxeku2ijse

Disconnected operation in the Coda file system

James J. Kistler, M. Satyanarayanan
1991 ACM SIGOPS Operating Systems Review  
J. J. Kistler and M.  ...  J. J Kistler and M Satyanarayanan IT Venus 1 I - to Coda servers Fig.2.  ... 
doi:10.1145/121133.121166 fatcat:yozggmkzinb37dat74kn54dr7m

Lightweight recoverable virtual memory

M. Satyanarayanan, Henry H. Mashburn, Puneet Kumar, David C. Steere, James J. Kistler
1993 ACM SIGOPS Operating Systems Review  
A conservative interpretation of the data in Table I Q 50 - &j -a-w--w_ UI c e -e- 0 u -~-,. "~40 -\ ' ..0 @ \ . c \ \ \ u \ E \ q X *\ 30 " u ' \ 1* < \ \ 'Q.  ... 
doi:10.1145/173668.168631 fatcat:xl32xlkfrndwhlkwal2cmlihyu

Lightweight recoverable virtual memory

M. Satyanarayanan, Henry H. Mashburn, Puneet Kumar, David C. Steere, James J. Kistler
1994 ACM Transactions on Computer Systems  
A conservative interpretation of the data in Table I Q 50 - &j -a-w--w_ UI c e -e- 0 u -~-,. "~40 -\ ' ..0 @ \ . c \ \ \ u \ E \ q X *\ 30 " u ' \ 1* < \ \ 'Q.  ... 
doi:10.1145/174613.174615 fatcat:rxmpdemslnd5roeo4hqoluv2mq

Disconnected operation in the Coda file system

James J. Kistler, M. Satyanarayanan
1991 Proceedings of the thirteenth ACM symposium on Operating systems principles - SOSP '91  
J. J. Kistler and M.  ...  J. J Kistler and M Satyanarayanan IT Venus 1 I - to Coda servers Fig.2.  ... 
doi:10.1145/121132.121166 dblp:conf/sosp/KistlerS91 fatcat:7i4xxovainambjrnb46krp5eve

Lightweight recoverable virtual memory

M. Satyanarayanan, Henry H. Mashburn, Puneet Kumar, David C. Steere, James J. Kistler
1993 Proceedings of the fourteenth ACM symposium on Operating systems principles - SOSP '93  
A conservative interpretation of the data in Table I Q 50 - &j -a-w--w_ UI c e -e- 0 u -~-,. "~40 -\ ' ..0 @ \ . c \ \ \ u \ E \ q X *\ 30 " u ' \ 1* < \ \ 'Q.  ... 
doi:10.1145/168619.168631 dblp:conf/sosp/SatyanarayananMKSK93 fatcat:br7dsj37iffnxaic7re7etpzke

Training listeners to identify the sounds of speech: II. Using SPATS software

James D. Miller, Charles S. Watson, Doris J. Kistler, Jill E. Preminger, David J. Wark
2008 The Hearing Journal®  
Using SPATS software By James D. Miller, Charles S. Watson, Doris J. Kistler, Jill E. Preminger, and David J.  ... 
doi:10.1097/01.hj.0000341756.80813.e1 pmid:20209044 pmcid:PMC2832483 fatcat:5avbgnqzbjc2fcxoyr5eg4lcwm

Antibodies to Avian Influenza Viruses in Canada Geese (Branta canadensis): A Potential Surveillance Tool?

Whitney M. Kistler, David E. Stallknecht, Thomas J. Deliberto, Seth Swafford, Kerri Pedersen, Kyle Van Why, Paul C. Wolf, Jerry A. Hill, Darren L. Bruning, James C. Cumbee, Randall M. Mickley, Carl W. Betsill (+3 others)
2012 Journal of Wildlife Diseases  
We thank J. Parris, J. Slusher, and A. Howey  ... 
doi:10.7589/2011-02-046 pmid:23060517 fatcat:qrybh33e5bgzve2pl5fft3inwq

Tobacco Quit Intentions and Behaviors among Cigar Smokers in the United States in Response to COVID-19

Sarah D. Kowitt, Jennifer Cornacchione Ross, Kristen L. Jarman, Christine E. Kistler, Allison J. Lazard, Leah M. Ranney, Paschal Sheeran, James F. Thrasher, Adam O. Goldstein
2020 International Journal of Environmental Research and Public Health  
Combustible tobacco users appear to be at greater risk for serious complications from COVID-19. This study examined cigar smokers' perceived risk of COVID-19, quit intentions, and behaviors during the current pandemic. We conducted an online study between 23 April 2020 to 7 May 2020, as part of an ongoing study examining perceptions of different health effects of cigars. All participants used cigars in the past 30 days (n = 777). Three-quarters of the sample (76.0%) perceived they had a higher
more » ... isk of complications from COVID-19 compared to non-smokers. The majority of participants (70.8%) intended to quit in the next six months due to COVID-19, and almost half of the sample (46.5%) reported making a quit attempt since the start of the COVID-19 pandemic. Far more participants reported increasing their tobacco use since COVID-19 started (40.9%) vs. decreasing their tobacco use (17.8%). Black or African American participants, participants who reported using a quitline, and participants with higher COVID-19 risk perceptions had higher intentions to quit using tobacco due to COVID-19, and higher odds of making a quit attempt since COVID-19 started. More research is needed to understand how tobacco users are perceiving COVID-19 risks and changing their tobacco use behaviors.
doi:10.3390/ijerph17155368 pmid:32722469 fatcat:46p5diorobdbppxe5shprjbxia

Urinary Proteomic Biomarkers for Diagnosis and Risk Stratification of Autosomal Dominant Polycystic Kidney Disease: A Multicentric Study

Andreas D. Kistler, Andreas L. Serra, Justyna Siwy, Diane Poster, Fabienne Krauer, Vicente E. Torres, Michal Mrug, Jared J. Grantham, Kyongtae T. Bae, James E. Bost, William Mullen, Rudolf P. Wüthrich (+3 others)
2013 PLoS ONE  
Treatment options for autosomal dominant polycystic kidney disease (ADPKD) will likely become available in the near future, hence reliable diagnostic and prognostic biomarkers for the disease are strongly needed. Here, we aimed to define urinary proteomic patterns in ADPKD patients, which aid diagnosis and risk stratification. By capillary electrophoresis online coupled to mass spectrometry (CE-MS), we compared the urinary peptidome of 41 ADPKD patients to 189 healthy controls and identified
more » ... peptides with significantly altered excretion, of which 209 could be sequenced using tandem mass spectrometry. A support-vector-machine based diagnostic biomarker model based on the 142 most consistent peptide markers achieved a diagnostic sensitivity of 84.5% and specificity of 94.2% in an independent validation cohort, consisting of 251 ADPKD patients from five different centers and 86 healthy controls. The proteomic alterations in ADPKD included, but were not limited to markers previously associated with acute kidney injury (AKI). The diagnostic biomarker model was highly specific for ADPKD when tested in a cohort consisting of 481 patients with a variety of renal and extrarenal diseases, including AKI. Similar to ultrasound, sensitivity and specificity of the diagnostic score depended on patient age and genotype. We were furthermore able to identify biomarkers for disease severity and progression. A proteomic severity score was developed to predict height adjusted total kidney volume (htTKV) based on proteomic analysis of 134 ADPKD patients and showed a correlation of r = 0.415 (p,0.0001) with htTKV in an independent validation cohort consisting of 158 ADPKD patients. In conclusion, the performance of peptidomic biomarker scores is superior to any other biochemical markers of ADPKD and the proteomic biomarker patterns are a promising tool for prognostic evaluation of ADPKD.
doi:10.1371/journal.pone.0053016 pmid:23326375 pmcid:PMC3542378 fatcat:hnre6v6iobfztnarj7nvexvhki

National Heart Foundation of Australia and Cardiac Society of Australia and New Zealand: Guidelines for the Prevention, Detection, and Management of Heart Failure in Australia 2018

John J. Atherton, Andrew Sindone, Carmine G. De Pasquale, Andrea Driscoll, Peter S. MacDonald, Ingrid Hopper, Peter M. Kistler, Tom Briffa, James Wong, Walter Abhayaratna, Liza Thomas, Ralph Audehm (+4 others)
2018 Heart, Lung and Circulation  
A meta-analysis of prospective cohort studies showing a J-shaped curve for incident heart failure, with the risk being lowest at four cups a day compared with none [571] .  ...  J-DHF Clinical HF LVEF >40% Carvedilol (n = 120) No carvedilol (n = 125) CV mort./Hosp. (63 events) 24% vs. 27% (p = 0.69) over 3.2 yr. TOPCAT Clinical HF LVEF !  ... 
doi:10.1016/j.hlc.2018.06.1042 pmid:30077227 fatcat:rk4enhh5aveefiqtwxvhrpylru

Disconnected Operation in the Coda File System [chapter]

James J. Kistler, M. Satyanarayanan
The Kluwer International Series in Engineering and Computer Science  
J. J. Kistler and M.  ...  J. J Kistler and M Satyanarayanan IT Venus 1 I - to Coda servers Fig.2.  ... 
doi:10.1007/978-0-585-29603-6_19 dblp:conf/mobidata/KistlerS94 fatcat:uq4bsg33hzdvno6jynptvu5dii

Efficient user-level file cache management on the Sun Vnode interface

David C. Steere, James J. Kistler, M Satyanarayanan
2018
Abstract: "In developing a distributed file system, there are several good reasons for implementing the client file cache manager as a user-level process. These include ease of implementation, increased portability, and minimal impact on kernel size. For reasons of compatibility it is also desirable to use a standard file intercept mechanism on the client. The Sun VFS/Vnode file system interface is such a standard. However, this interface is designed for kernel-based file systems, and a
more » ... el cache manager that used the Vnode mechanism would pay a large performance penalty due to the high number of kernel to cache manager context switches per file system call.This paper describes our solution to the problem for the Coda file system. By using a relatively small amount of kernel code to cache critical information, we are able to retain the much larger and more complex components of the Coda cache manager in a user level process. The measurements of Coda presented here confirm the performance benefits of this strategy, and indicate the relative merits of caching different kinds of information in the kernel."
doi:10.1184/r1/6605135.v1 fatcat:yfefeahsvrb4zbfzb2vk3yt4oi

Page 433 of National Union Catalog Vol. 29, Issue [page]

1963 National Union Catalog  
Englewood, N, J., Franklin Pub, Co,, 1963. Kistler, Hansjorg, joint author. see Haemmerli, Urs Peter. Disaccharide malabsorption.  ...  Allen, James, 1742-1778. _L Heyl, John K. PP NcD NUC63-~42648 Kistler, Stan, 1930- see Duke, Donald, 1929- steel rails through California. Calif.  ... 
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