Learning by Connecting: How Rule Networks Evolve Through Discovery of Relevance

2021 ◽  
Author(s):  
Martin Schulz ◽  
Kejia Zhu

Learning-by-connecting, the formation of connections between lessons, is a fairly common phenomenon, but how does it evolve? We argue that learning-by-connecting unfolds as the relevance of lessons to other lessons is gradually discovered over time. The process of “relevance discovery” unfolds through a dynamic interplay between lessons and their context that provides opportunities to discover the relevance of lessons to other lessons. We develop a theoretical model in which the availability of these opportunities and their sorting in time drive the formation of connections. We explore and test our model in the context of organizational rules that we conceptualize, following rule-based learning theories, as repositories of lessons learned. Our empirical context is the formation of citation ties between clinical practice guidelines (CPGs), a type of organizational rules in healthcare, in a Canadian regional healthcare organization. We find that citation tie formation intensifies when opportunities to discover relevance become available. We also find that learning-by-connecting creates rule networks in which the formation of new ties slows down due to the sorting of opportunities in time. Our findings support our assumption that learning-by-connecting is shaped by relevance discovery. Our study extends models of rule-based learning and contributes to discussions on the formation of connections in contexts of dispersed learning and knowledge.

2021 ◽  
pp. OP.21.00290
Author(s):  
Charles L. Shapiro ◽  
Nicole Zubizarreta ◽  
Erin Moshier ◽  
Julia P. Brockway ◽  
John Mandeli ◽  
...  

PURPOSE: The ASCO Quality Oncology Practice Initiative (QOPI) project was established to evaluate the influence of guideline recommendations on routine clinical practice. METHODS: QOPI provided summary data from 839 unique practices in which data were collected every six months from the Fall of 2015 to the Spring of 2019. From these data, six items were chosen based on their relationship to domains of survivorship. A zero-inflated negative binomial regression model was used to test for trends in QOPI measures adherence rates over time. The models were adjusted for the time period, region, practice-ownership, multispecialty site, fellowship program, and hospital type. RESULTS: Smoking cessation counseling recommended and smoking cessation counseling administered or referred both increased over time, 50%-61% (adjusted incidence rate ratios (IRR), 1.028; 95% CI, 1.016 to 1.040; P < .001) and 34%-49% (adjusted IRR, 1.052; 95% CI, 1.035 to 1.070; P < .001), respectively. Infertility risks discussed before chemotherapy increased from 36% to 53% (adjusted IRR, 1.056; 95% CI, 1.035 to 1.078; P < .001) and fertility options discussed or referred to specialists increased from 23% to 38% (adjusted IRR, 1.074; 95% CI, 1.046 to 1.102; P < .001). Twenty-nine percent documented a positron emission tomography, computed tomography, or bone scan within the first 12 months for women diagnosed with early breast cancer treated for curative intent (adjusted IRR, 1.000; 95% CI, 0.977 to 1.024; P = .971). Tumor marker surveillance within 12 months increased from 78% to 87% (adjusted IRR, 1.018; 95% CI, 1.002 to 1.033; P = .023). CONCLUSION: As scientific evidence to guide cancer survivorship care grows, the role of guideline recommendations permeating clinical practice using quality metrics will become increasingly important.


2003 ◽  
Vol 42 (03) ◽  
pp. 203-211 ◽  
Author(s):  
J. L. G. Dietz ◽  
A. Hasman ◽  
P. F. de Vries Robbé ◽  
H. J. Tange

Summary Objectives: Many shared-care projects feel the need for electronic patient-record (EPR) systems. In absence of practical experiences from paper record keeping, a theoretical model is the only reference for the design of these systems. In this article, we review existing models of individual clinical practice and integrate their useful elements. We then present a generic model of clinical practice that is applicable to both individual and collaborative clinical practice. Methods: We followed the principles of the conversation-for-action theory and the DEMO method. According to these principles, information can only be generated by a conversation between two actors. An actor is a role that can be played by one or more human subjects, so the model does not distinguish between inter-individual and intra-individual conversations. Results: Clinical practice has been divided into four actors: service provider, problem solver, coordinator, and worker. Each actor represents a level of clinical responsibility. Any information in the patient record is the result of a conversation between two of these actors. Connecting different conversations to one another can create a process view with meta-information about the rationale of clinical practice. Such process view can be implemented as an extension to the EPR. Conclusions: The model has the potential to cover all professional activities, but needs to be further validated. The model can serve as a theoretical basis for the design of EPR-systems for shared care, but a successful EPR-system needs more than just a theoretical model.


Author(s):  
Michelle B. Leavy ◽  
Claudia Schur ◽  
Ferhat Q. Kassamali ◽  
Margaret Edder Johnson ◽  
Raj Sabharwal ◽  
...  

BJS Open ◽  
2021 ◽  
Vol 5 (Supplement_1) ◽  
Author(s):  
Chan Hee Koh ◽  
Danyal Z Khan ◽  
Ronneil Digpal ◽  
Hugo Layard Horsfall ◽  
Hani J Marcus ◽  
...  

Abstract Introduction The clinical practice and research in the diagnosis and management of Cushing’s disease remains heterogeneous and challenging to this day. We sought to establish the characteristics of Cushing’s disease, and the trends in diagnosis, management and reporting in this field. Methods Searches of PubMed and Embase were conducted. Study protocol was registered a-priori. Random-effects analyses were conducted to establish numerical estimates. Results Our screening returned 159 papers. The average age of adult patients with Cushing’s disease was 39.3, and 13.6 for children. The male:female ratio was 1:3. 8% of patients had undergone previous transsphenoidal resection. The ratio of macroadenomas: microadenomas:imaging-undetectable adenomas was 18:53:29. The most commonly reported preoperative biochemical investigations were serum cortisol (average 26.4µg/dL) and ACTH (77.5pg/dL). Postoperative cortisol was most frequently used to define remission (74.8%), most commonly with threshold of 5µg/dL (44.8%). Average remission rates were 77.8% with recurrence rate of 13.9%. Median follow-up was 38 months. Majority of papers reported age (81.9%) and sex (79.4%). Only 56.6% reported whether their patients had previous pituitary surgery. 45.3% reported whether their adenomas were macroadenoma, microadenoma or undetectable. Only 24.1% reported preoperative cortisol, and this did not improve over time. 60.4% reported numerical thresholds for cortisol in defining remission, and this improved significantly over time (p = 0.004). Visual inspection of bubbleplots showed increasing preference for threshold of 5µg/dL. 70.4% reported the length of follow up. Conclusion We quantified the characteristics of Cushing’s disease, and analysed the trends in investigation and reporting. This review may help to inform future efforts in forming guidelines for research and clinical practice.


2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Åsa Kettis ◽  
Hanna Fagerlind ◽  
Jan-Erik Frödin ◽  
Bengt Glimelius ◽  
Lena Ring

Abstract Background Effective patient-physician communication can improve patient understanding, agreement on treatment and adherence. This may, in turn, impact on clinical outcomes and patient quality of life (QoL). One way to improve communication is by using patient-reported outcome measures (PROMs). Heretofore, studies of the impact of using PROMs in clinical practice have mostly evaluated the use of standardized PROMs. However, there is reason to believe that individualized instruments may be more appropriate for this purpose. The aim of this study is to compare the effectiveness of the standardized QoL-instrument, the European Organization for Research and Treatment of Cancer Quality of Life C-30 (EORTC-QOL-C30) and the individualized QoL instrument, the Schedule for the Evaluation of Individual Quality of Life-Direct Weighting (SEIQoL-DW), in clinical practice. Methods In a prospective, open-label, controlled intervention study at two hospital out-patient clinics, 390 patients with gastrointestinal cancer were randomly assigned either to complete the EORTC-QOL-C30 or the SEIQoL-DW immediately before the consultation, with their responses being shared with their physician. This was repeated in 3–5 consultations over a period of 4–6 months. The primary outcome measure was patients’ health-related QoL, as measured by FACIT-G. Patients’ satisfaction with the consultation and survival were secondary outcomes. Results There was no significant difference between the groups with regard to study outcomes. Neither intervention instrument resulted in any significant changes in health-related QoL, or in any of the secondary outcomes, over time. This may reflect either a genuine lack of effect or sub-optimization of the intervention. Since there was no comparison to standard care an effect in terms of lack of deterioration over time cannot be excluded. Conclusions Future studies should focus on the implementation process, including the training of physicians to use the instruments and their motivation for doing so. The effects of situational use of standardized or individualized instruments should also be explored. The effectiveness of the different approaches may depend on contextual factors including physician and patient preferences.


2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Han Gil Seo ◽  
Sang Jun Park ◽  
Jiah Seo ◽  
Seong Jun Byun ◽  
Byung-Mo Oh

Objective. Although evidence and guidelines recommend appropriate rehabilitation from the beginning of diagnosis in patients with Parkinson’s disease (PD), there is a lack of data addressing the utilization of rehabilitation therapies for these patients in practice. The aim of this study is to investigate the rate of rehabilitation therapy utilization over time in patients with PD using a nationwide cohort in Korea. Methods. Patients were identified using the registration code for PD in the program for rare, intractable disease from the National Health Insurance Service-National Sample Cohort database, which consists of 979,390 Korean residents. Data were divided into four periods: 2004–2006, 2007–2009, 2010–2012, and 2013–2015. We assessed the utilization of rehabilitation therapies and the associated patient characteristics. Results. The numbers of patients with PD were 384 in 2004, 855 in 2007, 1,023 in 2010, and 1,222 in 2013. The numbers of physiatrist visits per person were 0.58, 0.96, 1.97, and 2.91, in the respective periods. Among the patients, 35–40% had claims for physical therapy, 16–19% for occupational therapy, and 4–6% for swallowing therapy. There were no remarkable differences between these rates between the study periods. Sex, age, income, disability, and levodopa-equivalent dose were significantly associated with the utilization of rehabilitation therapy. Conclusion. This study demonstrated that the rate of rehabilitation therapy utilization did not change remarkably in patients with PD from 2004 to 2015 in Korea although the number of physiatrist visits increased dramatically. The present evidence and guidelines may have not been adequately integrated into clinical practice during the period of study. Additional efforts may be warranted to provide adequate rehabilitation therapies in clinical practice for patients with PD.


Author(s):  
Robert Knoerl ◽  
Carolyn S. Phillips ◽  
Juliana Berfield ◽  
Heather Woods ◽  
Meghan Acosta ◽  
...  

2013 ◽  
Vol 44 (7) ◽  
pp. 1349-1360 ◽  
Author(s):  
M. Wichers

The examination of moment-to-moment, ‘micro-level’ patterns of experience and behaviour using experience sampling methodology has contributed to our understanding of the ‘macro-level’ development of full-blown symptoms and disorders. This paper argues that the micro-level perspective can be used to identify the smallest building blocks underlying the onset and course of mental ill-health. Psychopathology may be the result of the continuous dynamic interplay between micro-level moment-to-moment experiences and behavioural patterns over time. Reinforcing loops between momentary states may alter the course of mental health towards either a more or less healthy state. An example with observed data, from a population of individuals with depressive symptoms, supports the validity of a dynamic network model of psychopathology and shows that together and over time, this continuous interplay between momentary states may result in the cluster of symptoms we call major depressive disorder. This approach may help conceptualize the nature of mental disorders, and generate individualized insights useful for diagnosis and treatment in psychiatry.


2021 ◽  
Vol 44 (3) ◽  
Author(s):  
Joshua Sinn

The Australian Competition and Consumer Commission is among several national competition regulators that have recently expressed concerns about the inability of existing merger law to address competition issues that arise from acquisitions of digital start-ups. The unique characteristics of rapidly evolving digital markets present unprecedented challenges for traditional merger regimes that rely on predictions of future market conditions to justify intervention. This article argues that Australian merger law is unable to adequately address the uncertain risks presented by acquisitions of nascent competitors in digital markets. It further argues that traditional rule-based merger regimes are unable to properly navigate conditions of extreme uncertainty. An alternative regulatory model that is explored in detail is experimentalist governance, which promises to allow regulators and firms to respond to radical uncertainty by recursively crafting solutions to problems that emerge in dynamic digital markets over time.


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