scholarly journals Case Studies Using Quality Control for Performance and Pay for Performance Specifications: Field Observations

2020 ◽  
Author(s):  
Imad Al-Qadi ◽  
◽  
José Rivera-Perez ◽  
Watheq Sayeh ◽  
Javier García Mainieri ◽  
...  
Keyword(s):  
Quality Control ◽  
Case Studies ◽  
Pay For Performance ◽  
Field Observations ◽  
Performance Specifications

On the Origin of Rotation Derived from Super Rapid Scan Satellite Imagery at the Cloud-Tops of Severe Deep Convection

2021 ◽  
Author(s):  
Jason M. Apke ◽  
John R. Mecikalski
Keyword(s):  
Quality Control ◽  
Numerical Model ◽  
Flow Field ◽  
Optical Flow ◽  
Case Studies ◽  
Model Simulation ◽  
Deep Convection ◽  
Vertical Wind Shear ◽  
Future Research ◽  
Severe Thunderstorms

AbstractSevere thunderstorms routinely exhibit adjacent maxima and minima in cloud-top vertical vorticity (CTV) downstream of overshooting tops within flow fields retrieved using sequences of fine-temporal resolution (1-min) geostationary operational environmental satellite (GOES)-R series imagery. Little is known about the origin of this so-called “CTV couplet” signature, and whether the signature is the result of flow field derivational artifacts. Thus, the CTV signature’s relevance to research and operations is currently ambiguous. Within this study, we explore the origin of near-cloud-top rotation using an idealized supercell numerical model simulation. Employing an advanced dense optical flow algorithm, image stereoscopy, and numerical model background wind approximations, the artifacts common with cloud-top flow field derivation are removed from two supercell case studies sampled by GOES-R imagers. It is demonstrated that the CTV couplet originates from tilted and converged horizontal vorticity that is baroclinically generated in the upper levels (above 10 km) immediately downstream of the overshooting top. This baroclinic generation would not be possible without a strong and sustained updraft, implying an indirect relationship to rotationally-maintained supercells. Furthermore, it is demonstrated that CTV couplets derived with optical flow algorithms originate from actual rotation within the storm anvils in the case studies explored here, though supercells with opaque above anvil cirrus plumes and strong anvil-level negative vertical wind shear may produce rotation signals as an artifact without quality control. Artifact identification and quality control is discussed further here for future research and operations use.

Case studies in quality control for 4‐D seismic processing

2002 ◽  
Author(s):  
Martin Widmaier ◽  
Jørgen Moe ◽  
John Brittan ◽  
Jostein Lima
Keyword(s):  
Quality Control ◽  
Case Studies ◽  
Seismic Processing

scholarly journals Illinois’ Experience Using Quality Control for Performance and Pay for Performance to Determine Pay for Hot-mix Asphalt

2021 ◽  
Author(s):  
Imad Al-Qadi ◽  
◽  
José Rivera-Perez ◽  
Javier García Mainieri ◽  
Watheq Sayeh ◽  
...  
Keyword(s):  
Quality Control ◽  
Hot Mix Asphalt ◽  
Pay For Performance

scholarly journals The development of technology of Fludeoxyglucose (18F) for injection, laboratory analysis methods

2018 ◽  
pp. 51-58
Author(s):  
V. V. Kachaniuk ◽  
V. V. Trokhymchuk ◽  
S. Y. Sarychev
Keyword(s):  
Quality Control ◽  
Nuclear Medicine ◽  
Half Life ◽  
Pharmaceutical Research ◽  
18F Fluorodeoxyglucose ◽  
Positron Emission ◽  
Performance Specifications ◽  
Diagnosis Of Cancer ◽  
Object Of Study ◽  
First Time

18F-Fluorodeoxyglucose has optimal characteristics for use in nuclear medicine and is a priority among radiopharmaceuticals for the diagnosis of cancer by positron emission tomography (PET). 18F-Fluorodeoxyglucose has the longest half-life with the lowest energy of radiation, it allows to obtain PET images of high contrast at low dose loading on the patient. Low energy positron radiation provides high spatial resolution of PET images. However, the half-life of 18F-Fluorodeoxyglucose  is large enough to allow the transportation of radiopharmaceuticals from the centralized production site to diagnostic centers with PET scanners (the so-called PET satellite concept), and to extend the time limits of PET research and synthesis of radiopharmaceuticals [1]. The study is the development of technology and quality control methods to ensure quality at all stages of the production of radiopharmaceuticals 18F-Fluorodeoxyglucose, injection. There was justified 18F-Fluorodeoxyglucose production technology and quality control at all stages of production, based on complex research in the department producing radiopharmaceuticals Ukrainian Center of radiosurgery consisting Clinical Hospital «Feofaniya». Object of study – 18F-Fluorodeoxyglucose, injection, injection is used in nuclear medicine for PET diagnosis of cancer. We used the biopharmaceutical and pharmaceutical methods. For the first time based pharmaceutical research was the rational technology of diagnostic radiopharmaceuticals 18F-Fluorodeoxyglucose, injection for use in PET diagnosis of cancer patients. Methods of controlling drug 18F-Fluorodeoxyglucose, injection according monographs of the State Pharmacopoeia of Ukraine. On the basis of the analysis developed by established methods of control performance specifications and shelf life of radiopharmaceuticals 18F-Fluorodeoxyglucose, injection.

Engaging general practitioners in pay-for-performance scheme design

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Verna Smith
Keyword(s):  
General Practice ◽  
Performance Management ◽  
Case Studies ◽  
General Practitioners ◽  
Pay For Performance ◽  
National Level ◽  
Professional Values ◽  
Structured Interviews ◽  
Content Type ◽  
Scheme Design

PurposePolicymakers implementing pay-for-performance schemes within general practice should seek to design schemes which work with rather than against the professional values and goals of general practitioners. In this way, schemes are more likely to enhance the practitioners' engagement. The purpose of this paper is to show how this was done in two case studies of pay-for-performance design and present the lessons from this study for policymakers.Design/methodology/approachA Most Similar Systems collective case study of the design of two pay-for-performance schemes for general practitioners, the United Kingdom's Quality and Outcomes Framework (QOF) and the New Zealand’s Performance Management Programme (PMP) was undertaken, involving 26 semi-structured interviews with policymakers, documentary and literature analysis.FindingsInnovation in processes was found in both case studies which facilitated engagement by general practitioners in the formulation and implementation of these schemes. These were careful selection of highly skilled design teams, use of principle-based negotiation techniques and academic mediation of indicator selection. In addition, in England the majority of members in the combined QOF design team were general practitioners. The evidence from these two case studies reinforces approaches to scheme design which seek to harness rather than challenge medical professional values and which maximise the participation of general practitioners in the design process. Achieving funder/practitioner collaboration should be a key goal in the policymaking process.Practical implicationsPay-for-performance scheme designers can improve their ability to engage general practitioners in scheme design and scheme uptake by adopting approaches which actively engage general practitioners as designers and users of such schemes.Originality/valueThis study compares two contemporaneous processes of pay-for-performance scheme design and implementation in similar systems of general practice funding and delivery at the national level, offering a rare quasi-experimental opportunity for learning lessons from comparative analysis.

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