Derivation of tunneling probabilities for arbitrarily graded potential barriers using modified Airy functions

2010 ◽  
Vol 42 (2) ◽  
pp. 129-141
Author(s):  
Kyu-Tae Lee ◽  
Eun Joo Jung ◽  
Chul Han Kim ◽  
Chang-Min Kim
1992 ◽  
Vol 70 (12) ◽  
pp. 1218-1221 ◽  
Author(s):  
I. C. Goyal ◽  
Sukhdev Roy ◽  
A. K. Ghatak ◽  
R. L. Gallawa

We have applied the modified Airy function (MAF) method to the analysis of an anharmonic oscillator, characterized by the potential V(x) = k x2/2 + a x4, k > 0, a > 0. The MAF method gives an accurate closed-form expression for the wave function as well as very accurate eigenvalues with much less numerical effort than the five-term (eighth-order) WKBJ approximation. The application of the first-order perturbation correction to the MAF eigenvalues makes them even more accurate than those obtained by the five-term WKBJ approximation.


2002 ◽  
Vol 8 (6) ◽  
pp. 1239-1245 ◽  
Author(s):  
Chang-Min Kim ◽  
Young-Moon Kim ◽  
Woo-Kyung Kim

1991 ◽  
Vol 10 (1) ◽  
pp. 1-10 ◽  
Author(s):  
R. L. Gallawa ◽  
I. C. Goyal ◽  
A. K. Ghatak

2018 ◽  
Vol 68 (suppl 1) ◽  
pp. bjgp18X696773
Author(s):  
Abi Eccles ◽  
Mike Hopper ◽  
Helen Atherton

BackgroundOnline triage software is a new way to triage patients online that allows patients to describe their problem via an online form. A GP then contacts the patient to arrange either a face-to-face or telephone consultation.AimThis study aimed to explore use of online consultation software and gain insight into patients’ experiences of using online consultations, identifying potential barriers and facilitators to use.MethodThis is a mixed methods retrospective study analysing data about patient users and their associated feedback. Data from a sample of 5591 patients were quantitatively analysed to describe characteristics of users. 576 out of the 5591 users left free-text feedback comments on their experience of use. These were thematically analysed.ResultsThe highest levels of use were observed in 25–35-year olds and lowest from those aged >65. Key themes identified included convenience, consultation quality, appropriateness, resource-use and functionality. Within each, a range of subthemes were present representing both positive and negative perceptions, suggesting that experiences of using online triage varied and were often context-dependentConclusionThere are various advantages to online triage software, but these are context-dependent. Therefore, such applications should be offered as an additional way to contact the GP surgery, rather than a replacement for more established methods, to ensure appropriate and equal access for patients.


Cancers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 3761
Author(s):  
Elena Meggiolaro ◽  
Silvia De Padova ◽  
Federica Ruffilli ◽  
Tatiana Bertelli ◽  
Marina Bragagni ◽  
...  

Introduction: Little consideration is given to the referral and uptake of available supportive services after distress screening. However, identifying the reasons for accepting or refusing help is mandatory for implementing a screening policy. The present study explored the practical usefulness of and potential barriers to the application of distress management. Methods: 406 cancer patients were consecutively selected and asked to complete the Distress Thermometer (DT) and Problem Check List (PL). All patients with a DT score ≥6 were invited for a post-DT telephone interview with a trained psychologist. Results: The 112 patients who refused to take part were more often older, retired, at a more advanced stage of illness, and with no previous experience of psychological intervention with respect to those who accepted. Of the 78 patients with a score ≥6 who were referred to the Psycho-Oncology Service, 65.4% accepted the telephone interview. Twenty-two patients rejected the initial invitation immediately for various reasons including logistic difficulties, physical problems, and feeling embarrassed about opening up to a psychologist. Conclusions: Our study confirms that screening per sé is insufficient to deal with the problem of distress and that more emphasis should be placed on implementing referral and treatment.


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