scholarly journals Correlated Ligand Dynamics in Oxyiron Picket Fence Porphyrins: Structural and Mössbauer Investigations

2013 ◽  
Vol 135 (41) ◽  
pp. 15627-15641 ◽  
Author(s):  
Jianfeng Li ◽  
Bruce C. Noll ◽  
Allen G. Oliver ◽  
Charles E. Schulz ◽  
W. Robert Scheidt
Keyword(s):  
Picket Fence

Co-creating the Psychological “White Picket Fence”: Three Gay Couples’ Relationship Reconfiguration

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Prevan Moodley ◽  
Francois Rabie
Keyword(s):  
Grounded Theory ◽  
South African ◽  
Gay Couples ◽  
Core Category ◽  
Picket Fence ◽  
Open Relationship ◽  
The Individual ◽  
The Relationship ◽  
Porous Boundaries

Many gay couples engage in nonmonogamous relationships. Ideas about nonmonogamy have historically been theorised as individual pathology and indicating relational distress. Unlike mixed-sex couples, boundaries for gay couples are often not determined by sexual exclusivity. These relationships are built along a continuum of open and closed, and sexual exclusivity agreements are not restricted to binaries, thus requiring innovation and re-evaluation. Three white South African gay couples were each jointly interviewed about their open relationship, specifically about how this is negotiated. In contrast to research that uses the individual to investigate this topic, this study recruited dyads. The couples recalled the initial endorsement of heteronormative romantic constructions, after which they shifted to psychological restructuring. The dyad, domesticated through the stock image of a white picket fence, moved to a renewed arrangement, protected by “rules” and imperatives. Abbreviated grounded theory strategies led to a core category, “co-creating porous boundaries”, and two themes. First, the couple jointly made heteronormative ideals porous and, second, they reconfigured the relationship through dyadic protection. The overall relationship ideology associated with the white picket fence remained intact despite the micro-innovations through which the original heteronormative patterning was reconfigured.

scholarly journals Spectroscopic investigations into the binding of hydrogen sulfide to synthetic picket-fence porphyrins

2016 ◽  
Vol 45 (11) ◽  
pp. 4843-4853 ◽  
Author(s):  
Matthew D. Hartle ◽  
James S. Prell ◽  
Michael D. Pluth
Keyword(s):  
Hydrogen Sulfide ◽  
Spectroscopic Investigations ◽  
Picket Fence

The picket-fence porphyrin system is used a model for a sterically-constrained, protected binding environment to study H2S and HS−ligation.

Gated reverb: Queering the pitch in Trade Queen

2021 ◽  
Vol 11 (2) ◽  
pp. 141-146 ◽  
Author(s):  
Ryan Prout
Keyword(s):  
Sound Design ◽  
Public And Private ◽  
Black And White ◽  
Picket Fence

Director David Wagner says Trade Queen ‘was never intended to be a period film’. However, the suitability of black-and-white 35 mm for the story points to the inflection between markers of analogue and digital registration as one that also codes the boundary between queer and straight experience. This article argues that while Trade Queen is tagged as a film without dialogue, the use of sound design and music in the film is critical to a narrative told aurally as well as visually. Furthermore, it is the use of sound in this film – which ends with vinyl interference – that articulates the tension between analogue and digital, and between heteronormative and queer experience. In punchlines, the synthesized reverb of Ruby Treasure’s score, and in interiors heard from the gated picket fence, we hear as well as see the transitions between public and private selves.

VMAT monthly QA using two techniques: 2D ion chamber array with an isocentric gantry mount and an in vivo dosimetric device attached to gantry

2013 ◽  
Vol 13 (2) ◽  
pp. 240-246 ◽  
Author(s):  
P. Myers ◽  
S. Stathakis ◽  
C. Buckey ◽  
N. Papanikolaou
Keyword(s):  
Dose Rate ◽  
Volumetric Modulated Arc Therapy ◽  
Field Measurements ◽  
Rate Variation ◽  
Speed Variation ◽  
Ion Chamber ◽  
Position Accuracy ◽  
Picket Fence ◽  
Isocentric Gantry

AbstractPurposeVarian RapidArc is a volumetric modulated arc therapy (VMAT) that obtains a conformal dose around the desired structure by employing variable gantry speed, dose rate and dynamic multileaf collimator (DMLC) speed as the gantry rotates about machine isocenter. This study is meant to build upon previous research by Ling et al. by completing the tests with an in vivo dosimetric device attached to the linac gantry and a 2D ionisation chamber array with an isocentric gantry mount.Materials and methodsTwo PTW detectors, seven29 array with gantry mount and DAVID, were attached to the linear accelerator gantry, allowing each device to remain perpendicular to the beam at all gantry angles. Three tests for RapidArc evaluation were performed on these devices including: dose rate and gantry speed variation, DMLC speed and dose rate variation and DMLC position accuracy. The reproducibility of the arc data was also reported.ResultsA picket fence plan varying dose rates (111 to 600 MU/minute) and gantry speeds (5·5 to 4·3°/second) was delivered consisting of seven sections of different combinations. These measurements were compared with static gantry, open field measurements and found to be within 2·39% for the DAVID device and 0·84% for the seven29. A four-section picket fence of varying DMLC speeds (0·46, 0·92, 1·84 and 2·76 cm/second) was similarly evaluated and found to be within 1·99% and 3·66% for the DAVID and seven29, respectively. For DMLC position accuracy, a picket fence arc plan was compared with a static picket fence and found to agree within 0.38% and 2.91%. Reproducibility for these three RapidArc plans was found to be within 0·30% and 2·70% for the DAVID and seven29.ConclusionThe DAVID and seven29 detectors were able to perform the RapidArc quality assurance tests efficiently and accurately and the results were reproducible. Periodic verification of DMLC movement, dose rate variation and gantry speed variation relating to RapidArc delivery can be completed in a timelier manner using this equipment.

Electrochemistry of nickel picket fence porphyrin. Electrogeneration and spectral characterization of nickel complexes in unusual oxidation states

1989 ◽  
Vol 28 (13) ◽  
pp. 2542-2547 ◽  
Author(s):  
K. M. Kadish ◽  
D. Sazou ◽  
G. B. Maiya ◽  
B. C. Han ◽  
Y. M. Liu ◽  
...  
Keyword(s):  
Nickel Complexes ◽  
Spectral Characterization ◽  
Oxidation States ◽  
Picket Fence

Picket-Fence and Stack of Coins Signs

2020 ◽  
pp. 124-124
Author(s):  
Michael E. Mulligan
Keyword(s):  
Picket Fence

Verification of Elekta MLC Leaf Positions by Custom made Sliding Window QA Plan and Picket Fence Test with Variable Gantry Angles

2010 ◽  
Vol 78 (3) ◽  
pp. S755-S756
Author(s):  
D. Tatsumi ◽  
K. Ishii ◽  
R. Nakada ◽  
S. Tsutsumi ◽  
R. Ogino ◽  
...  
Keyword(s):  
Sliding Window ◽  
Picket Fence ◽  
Custom Made
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