Inputs, Transition Criteria, Outputs

2021 ◽  
pp. 33-35
Author(s):  
Michael McCormick
Keyword(s):  
Transition Criteria

Utilizing serum bicarbonate instead of venous pH to transition from intravenous to subcutaneous insulin shortens the duration of insulin infusion in pediatric diabetic ketoacidosis

2019 ◽  
Vol 32 (1) ◽  
pp. 11-17
Author(s):  
Jennifer Gauntt ◽  
Priya Vaidyanathan ◽  
Sonali Basu
Keyword(s):  
Adverse Events ◽  
Diabetic Ketoacidosis ◽  
Insulin Infusion ◽  
Tertiary Care ◽  
Pediatric Intensive Care ◽  
Regular Insulin ◽  
Serum Bicarbonate ◽  
Transition Group ◽  
Serum Bicarbonate Level ◽  
Transition Criteria

Abstract Background Standard therapy of diabetic ketoacidosis (DKA) in pediatrics involves intravenous (IV) infusion of regular insulin until correction of acidosis, followed by transition to subcutaneous (SC) insulin. It is unclear what laboratory marker best indicates correction of acidosis. We hypothesized that an institutional protocol change to determine correction of acidosis based on serum bicarbonate level instead of venous pH would shorten the duration of insulin infusion and decrease the number of pediatric intensive care unit (PICU) therapies without an increase in adverse events. Methods We conducted a retrospective (pre/post) analysis of records for patients admitted with DKA to the PICU of a large tertiary care children’s hospital before and after a transition-criteria protocol change. Outcomes were compared between patients in the pH transition group (transition when venous pH≥7.3) and the bicarbonate transition group (transition when serum bicarbonate ≥15 mmol/L). Results We evaluated 274 patient records (n=142 pH transition group, n=132 bicarbonate transition group). Duration of insulin infusion was shorter in the bicarbonate transition group (18.5 vs. 15.4 h, p=0.008). PICU length of stay was 3.2 h shorter in the bicarbonate transition group (26.0 vs. 22.8 h, p=0.04). There was no difference in the number of adverse events between the groups. Conclusions Transitioning patients from IV to SC insulin based on serum bicarbonate instead of venous pH led to a shorter duration of insulin infusion with a reduction in the number of PICU therapies without an increase in the number of adverse events.

AUTOMATIC GENERATION OF TEST CASES FROM ACTIVITY DIAGRAMS FOR UML BASED TESTING (UBT)

2015 ◽  
Vol 77 (13) ◽  
Author(s):  
Oluwatolani Oluwagbemi ◽  
Hishammuddin Asmuni
Keyword(s):  
Automatic Generation ◽  
Test Cases ◽  
System Testing ◽  
Activity Diagrams ◽  
Model File ◽  
Transition Criteria

Activity diagrams are one of UML behavioural models suitable for system testing because it has the capacity to effectively describe the behaviours of systems under development. In this paper, a technique is proposed that generates test cases from activity diagrams by constructing an activity flow tree (AFT) which stores all the information extracted from the model file of the diagram through the help of a parser. Then, we applied an algorithm to generate test cases from the constructed tree. Test cases were generated based on the elements of activity diagrams such as activity sequences, associated descriptions and conditions. The proposed technique generated accurate test cases that completely tallied with the modeled requirements in the diagram. We utilized all-paths, basic pair paths, conditions, branches and transition criteria for generating test cases using ATM withdrawal operation software as a case study.

scholarly journals Turbulent mixing and transition criteria of flows induced by hydrodynamic instabilities

2019 ◽  
Vol 26 (8) ◽  
pp. 080901 ◽  
Author(s):  
Ye Zhou ◽  
Timothy T. Clark ◽  
Daniel S. Clark ◽  
S. Gail Glendinning ◽  
M. Aaron Skinner ◽  
...  
Keyword(s):  
Turbulent Mixing ◽  
Hydrodynamic Instabilities ◽  
Transition Criteria

scholarly journals Experimental Study of Bubbly-Slug Flow Transition Criteria in an Vertical Circular Tube by Using WMS

2020 ◽  
Vol 8 ◽  
Author(s):  
Shimo Yu ◽  
Xiao Yan ◽  
Lei Zhou ◽  
Aiwei Xu ◽  
Junyi Zhang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Slug Flow ◽  
Circular Tube ◽  
Flow Transition ◽  
Transition Criteria

On the transition between regular and Mach reflection in truly non-stationary flows

1981 ◽  
Vol 108 ◽  
pp. 383-400 ◽  
Author(s):  
S. Itoh ◽  
N. Okazaki ◽  
M. Itaya
Keyword(s):  
Shock Tube ◽  
Mach Reflection ◽  
Experimental Results ◽  
Dry Air ◽  
Stationary Flows ◽  
Transition Criteria ◽  
Shock Reflections ◽  
Pressure Driven

Shock reflections over a convex and a concave wedge were investigated by using a 5 × 7 cm ordinary pressure-driven shock tube. Dry air was used for both the driving and driven gases. The large difference between the transition from regular (RR) to Mach reflection (MR) and that from MR to RR was observed, confirming the results obtained by Ben-Dor, Takayama & Kawauchi (1980). These results contradict all of the previous theoretical transition criteria. A new theory on the transition between RR and MR was developed by applying Whitham's ‘ray shock’ theory. This new theory agrees quite well with the experimental results.

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