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Process of Infection with Bacteriophage φX174

L. Dalgarno, Robert L. Sinsheimer
1968 Journal of Virology  
This investigation was supported in part by Public Health Service grant GM 13554 from the National Institute of General Medical Sciences. LITERATURE CITED  ...  Walker also noted the initial appearance of mature virus particles in or immediately around the area of the inclusion (10, 13). The results of an autoradiographic study (R. G.  ...  The experiments which follow are an attempt to define the nature of the second-cycle defect in terms of these three initial steps in the infective process. Attachment of phage.  ... 
doi:10.1128/jvi.2.8.822-829.1968 fatcat:btdhkglz4je2jdalvzdhppyvxy

The evolution of Eclipse

Tom Mens, Juan Fernandez-Ramil, Sylvain Degrandsart
2008 2008 IEEE International Conference on Software Maintenance  
We present a metrics-based study of the evolution of Eclipse, an open source integrated development environment, based on data from seven major releases, from releases 1.0 to 3.3.  ...  We investigated whether three of the laws of software evolution were supported by the data. We found that Eclipse displayed continual change and growth, hence supporting laws 1 and 6.  ...  Since Eclipse follows a well-defined plug-in architecture [3, 12] , we started our study by looking at the growth of Eclipse in terms of architectural entities.  ... 
doi:10.1109/icsm.2008.4658087 dblp:conf/icsm/MensFD08 fatcat:e4sneemer5epdbfi747k2bcbpy

Process of infection with bacteriophage phiX174. XXIV. New type of temperature-sensitive mutant

L Dalgarno, R L Sinsheimer
1968 Journal of Virology  
The defect in initiation of a second cycle of infection appears to be in the injection of viral deoxyribonucleic acid.  ...  A group of temperature-sensitive mutants of phiX174 has been isolated which can go through a single, normal one-step growth cycle at 40 C but fail to form plaques at this temperature.  ...  This investigation was supported in part by Public Health Service grant GM 13554 from the National Institute of General Medical Sciences. LITERATURE CITED  ... 
pmid:4883013 pmcid:PMC375696 fatcat:n7pgh52zobd6peo76y7akwdgd4

Cold-Sensitive Mutants of Bacteriophage φX174. II. Comparison of Two Cold-Sensitive Mutants

David J. Segal, Clifton E. Dowell
1974 Journal of Virology  
Since complementation analysis of cs7O and cs82 was not feasible due to the unique properties of these mutants, those 4X174 properties affected by the virus coat were examined as an index of a mutation  ...  Mutant cs70 was eclipse defective, showing altered eclipse kinetics at permissive temperature (40 C) and failing entirely to eclipse at restrictive temperature (25 C).  ...  We wish to thank Michael Bowes, Donald Bone, and David Yelton for fruitful discussions, and also the Department of Microbiology, University of Massachusetts, where most of this investigation was performed  ... 
doi:10.1128/jvi.14.5.1115-1125.1974 fatcat:fzfmvf7jy5gtrngfoi6hpaxvfu

Cold-sensitive mutants of bacteriophage phi x174. II. Comparison of two cold-sensitive mutants

D J Segal, C E Dowell
1974 Journal of Virology  
Since complementation analysis of cs70 and cs82 was not feasible due to the unique properties of these mutants, those phiX174 properties affected by the virus coat were examined as an index of a mutation  ...  Mutant cs70 was eclipse defective, showing altered eclipse kinetics at permissive temperature (40 C) and failing entirely to eclipse at restrictive temperature (25 C).  ...  We wish to thank Michael Bowes, Donald Bone, and David Yelton for fruitful discussions, and also the Department of Microbiology, University of Massachusetts, where most of this investigation was performed  ... 
pmid:4610177 pmcid:PMC355628 fatcat:cqcxl6b4arduzilgo7wtvzi7wa

Primary pulmonary artery sarcoma versus pulmonary thromboembolism: a multimodal imaging comparison

Ellen Kronzer, Steven I. Robinson, Douglas A. Collins, Robert D. McBane
2021 Journal of Thrombosis and Thrombolysis  
pulmonary artery sarcoma from pulmonary thromboembolic disease. (2) The wall eclipsing sign is considered pathognomonic for pulmonary artery sarcoma. (3) Positron emission tomography/computed tomography  ...  Distinct radiographic findings to help differentiate between the two diseases are highlighted in the case presented. (1) Several nuances in various imaging modalities have been identified to help distinguish  ...  The interval growth of the filling defect is best appreciated by comparison of the proximal edge (arrow) to the adjacent ascending aorta (A) Fig. 2 "Wall Eclipsing Sign" by CT Angiography.  ... 
doi:10.1007/s11239-021-02464-w pmid:33963485 pmcid:PMC8104460 fatcat:mtl2ui4yqrbjjkpjueww2ezv24

Physical assay and growth cycle studies of a defective adeno-satellite virus

W P Parks, J L Melnick, R Rongey, H D Mayor
1967 Journal of Virology  
Growth cycle studies of satellite virus in cells co-infected with adenovirus, as assayed by particle counting, indicated that the kinetics of satellite virus production closely followed the kinetics of  ...  its helper adenovirus production, with an eclipse period of 12 to 16 hr.  ...  ACKNOWLEDGMENTS We thank Judy Alcott and Liane Jordan for assistance in the present study.  ... 
pmid:4990036 pmcid:PMC375517 fatcat:c2twl7crrnhfdhyt7co2pwgbby

Pulmonary artery sarcoma: Case report and review of the literature

Natalia I. Moguillansky, Nupur Verma, Purav Shah, Jacquelyn Knapik, Tan-Lucien Mohammed
2019 Respiratory Medicine Case Reports  
We present a case of a middle age woman who initially diagnosed with presumptive pulmonary embolism that was later found to have pulmonary artery sarcoma.  ...  [8] CT chest finding suggestive of PAS was a filling defect occupying the entire lumen of the pulmonary trunk with an increase in diameter of the involved vessel and delayed patchy contrast enhancement  ...  Pulmonary Artery Sarcoma Pulmonary Embolism CT (pulmonary artery) [10] Usually involves the main pulmonary trunk Expansive growth with proximal bulging Presence of "wall eclipsing sign" [8] Involves  ... 
doi:10.1016/j.rmcr.2019.100857 pmid:31193694 pmcid:PMC6538954 fatcat:o66ufwobufdcndv3xnjb5ijbqy

Size-controlled, high optical quality ZnO nanowires grown using colloidal Au nanoparticles and ultra-small cluster catalysts

M. F. Lynam, N.-J. Ke, S. J. Bradley, T. Nann, A. Neiman, R. J. Reeves, A. J. Downard, V. B. Golovko, M. W. Allen
2019 APL Materials  
A strong correlation was observed between ZnO nanowire tip diameter and Au catalyst size, with no apparent lower limit to the size of Au nanoparticles able to catalyze nanowire growth.  ...  the highest quality emission obtained using Au 9 atomically precise cluster catalysts, used here as catalysts for ZnO growth for the first time.  ...  This work was financially supported by the MacDiarmid Institute for Advanced Materials and Nanotechnology and the Royal Society of New Zealand Rutherford Discovery Fellowship Scheme.  ... 
doi:10.1063/1.5054355 fatcat:6o4ehk7ihbaevnjbmarxcg45ae

Full orientation control of epitaxial MoS2 on hBN assisted by substrate defects

Fu Zhang, Yuanxi Wang, Chad Erb, Ke Wang, Parivash Moradifar, Vincent H. Crespi, Nasim Alem
2019 Physical review B  
We employ first-principles calculations to identify a method to lift this near-degeneracy: the energetic distinction between eclipsed and staggered configurations during nucleation at a point defect in  ...  This defect-enhanced orientational epitaxy could provide a general mechanism to break the near-degeneracy of 0/180 orientations of polar 2D materials on polar substrates, overcoming a long-standing impediment  ...  The full growth kinetics for the nucleation of MoS 2 at a boron vacancy site is beyond the scope of the present study, but the most plausible such route begins with the V B -bound Mo adatom first coordinating  ... 
doi:10.1103/physrevb.99.155430 fatcat:zndxvh4sxjeq5iappqxatk7lta

Physical Assay and Growth Cycle Studies of a Defective Adeno-Satellite Virus

Wade P. Parks, Joseph L. Melnick, Robert Rongey, Heather D. Mayor
1967 Journal of Virology  
Electron microscopic particle counting of the defective adeno-satellite virus (ASV), by use of pseudoreplication and negative staining with phosphotungstic acid, was shown to be a reproducible quantitative  ...  Particles of satellite type 4 that were counted in fluids from infected cultures had the same morphology as  ...  ACKNOWLEDGMENTS We thank Judy Alcott and Liane Jordan for assistance in the present study.  ... 
doi:10.1128/jvi.1.1.171-180.1967 fatcat:uzzpyac5cfftdl6owiges7kfgy

What Does It Take to Develop a Million Lines of Open Source Code? [chapter]

Juan Fernandez-Ramil, Daniel Izquierdo-Cortazar, Tom Mens
2009 IFIP Advances in Information and Communication Technology  
This article presents a preliminary and exploratory study of the relationship between size, on the one hand, and effort, duration and team size, on the other, for 11 Free/Libre/Open Source Software (FLOSS  ...  One of our experiments was to calculate the net size, that is, to remove any suspiciously large outliers or jumps in the growth trends.  ...  Acknowledgements We are grateful to Andrea Capiluppi for comments on an early draft of this paper. We thank the anonymous reviewers for their helpful comments.  ... 
doi:10.1007/978-3-642-02032-2_16 fatcat:vsinthns4bgsphuts2trbwat4i

An Improved Method for Cross-Project Defect Prediction by Simplifying Training Data

Peng He, Yao He, Lvjun Yu, Bing Li
2018 Mathematical Problems in Engineering  
The objective of this study is to propose an improved method for CPDP by simplifying training data, labeled as TDSelector, which considers both the similarity and the number of defects that each training  ...  instance has (denoted by defects), and to demonstrate the effectiveness of the proposed method.  ...  This work was supported by the Natural Science Foundation of Hubei province (no. 2016CFB309) and the National Natural Science Foundation of China (nos. 61272111, 61273216, and 61572371).  ... 
doi:10.1155/2018/2650415 fatcat:3k7xqnj5evf7hf2si5b44sstvy

Escherichia coli cells lacking methylation-blocking factor (leucine-responsive regulatory protein) have precise timing of initiation of DNA replication in the cell cycle

D W Smith, W B Stine, A L Svitil, A Bakker, J W Zyskind
1992 Journal of Bacteriology  
leucine-responsive regulatory protein (Lrp), is not responsible for the delayed methylation at oriC implicated in an eclipse period following initiation of DNA replication.  ...  Cells containing a transposon mutation within the mbf (lrp) gene initiate DNA replication at the correct time during the cell cycle, whereas cells with increased amounts of the Dam methyltransferase initiate  ...  eclipse period following initiation of DNA replication.  ... 
doi:10.1128/jb.174.9.3078-3082.1992 pmid:1569034 pmcid:PMC205964 fatcat:dbhzgtki45d6fltcf5tvbqcgyu

Report on the spatial spread of defective interfering particles and its role in suppressing infectious particles [article]

Qasim Ali, Ruian Ke
2019 bioRxiv   pre-print
We studied the impact of initial dose of DIPs, the efficiency of DIP production and the role of cell maturation.  ...  Our results show that an engineered DIP can substantially decrease the concentration of IPs. We assert that the decrease in the rate of spatial spread of IPs requires non-deterministic settings.  ...  The results are discussed with Ruian Ke mostly by email exchange.  ... 
doi:10.1101/558932 fatcat:wp4wbeyi3rdlrfolbssihfdzzu
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