scholarly journals 3566 Longitudinal analysis of research collaborations and emerging networks

2019 ◽  
Vol 3 (s1) ◽  
pp. 132-133
Author(s):  
Ann Marie Dozier ◽  
Elizabeth Wayman ◽  
Camille Anne Martina ◽  
Nicole O’Dell ◽  
Eric P. Rubinstein ◽  
...  

OBJECTIVES/SPECIFIC AIMS: To longitudinally track emerging research collaborations and assess their development and productivity. METHODS/STUDY POPULATION: In four administrations (2011, 2013, 2015, 2017), all full- and part-time University of Rochester Medical Center faculty received an email invitation to complete a research collaborators survey. Respondents indicated whether they were involved in research, and if involved in research, identified collaborators from a drop-down list of investigators in the institution. Space was provided for write-ins. Full- and part-time status, faculty rank, and departmental affiliation was associated with each investigator. Grant data were obtained from a grant management database maintained by the institution’s Office of Research and Project Administration. Grant data included all submissions (funded and not funded), award number, award effective data, award final expiration date, funding amounts, principal investigator and co-investigators. Using Mathematica SNA software, for each year we identified collaborator dyads (including their characteristics such as inter/intradepartmental; investigator characteristics) and networks (e.g. size, density). RESULTS/ANTICIPATED RESULTS: On average, 1800 (range 1730-2034) full- and part-time faculty received email invitations to complete the survey. An average of 403 respondents (range 385-441) completed the survey each administration. While the response rate seems low, the survey was distributed to every faculty member regardless of their primary appointment. Thus it included a large number of individuals whose role is exclusively clinical. Grant data included 4429 awards received between 2011 and 2018, involving 1395 investigators as principal or co-investigators. Survey respondents naming collaborators ranged from 233 to 280 (average 257) with 1594 to 2265 (average 1988) collaborations named each year. Overall density increased from.0204 in 2011 to.0342 in 2017. Density within the group of female investigators increased from.0219 in 2011 to.0412 in 2017. Within the group of male investigators, density increase from.0226 to.0333 in the same time span. Analysis by rank, changes over time and those with grant funding is underway. DISCUSSION/SIGNIFICANCE OF IMPACT: This methodology captured a consistent number of collaborations over an 8 year period. Analyses reveal network growth over time and of increasing heterogeneity (by gender). Analyzing research networks overtime provides an important metric to assess how research networks evolve and devolve and the characteristics of those that grow or stagnate. Further these analyses can demonstrate the impact of support provided to networks or teams by the CTSI, department or other institutional mechanism.

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Ofir Koren ◽  
Asaf Israeli ◽  
Ehud Rozner ◽  
Nassem Darawshy ◽  
Yoav Turgeman

Abstract Background The prevalence of Rheumatic Mitral Stenosis (MS) has significantly changed over the last decades. We intend to examine patient demographics, Echocardiographic characteristics, procedural success rates, and complications throughout 30-years. Methods We conducted a single-center descriptive observational study. The study population consists of patients undergone percutaneous balloon mitral valvuloplasty (PBMV) at Emek Medical Center in Israel from January 1990 to May 2019. Results Four hundred seventeen patients underwent PBMV during the study period and were eligible for the study. Age did not change significantly over time (p = 0.09). The prevalence of Male and patients who were smoking and had multiple comorbidities such as hypertension, dyslipidemia, ischemic heart disease, and chronic kidney disease became increases over time (p = 0.02, p = 0.02, p = 0.001, p = 0.01, p = 0.02, and p = 0.001, respectively). Wilkins score and all its components increased over time, and the total score was higher in females (p = 0.01). Seventy-nine (18.9%) patients had complications. The rate of complications did not change over decades. Patients with Wilkins score > 8, post-procedural MR of ≥2, and post-procedural MVA < 1.5 had the highest risk for the need of Mitral valve replacement (MVR) surgery in 2 years following PBMV (3.64, 4.03, 2.44, respectively, CI 95%, p < .0001 for all). The median time in these patients was 630 days compared to 4–5 years in the entire population. Patients with Post-procedural MR of ≥2 and post-procedural MVA < 1.5 had ten times risk for developing heart failure (HR 9.07 and 10.06, respectively, CI 95%, P < .0001). Conclusion Our research reveals trends over time in patients’ characteristics and echocardiographic features. Our study population consists of more male patients with multiple comorbidities and more complex and calcified valvular structures in the last decade. Wilkins score > 8, post-procedural MR of ≥2, and post-procedural MVA < 1.5 cm2 were in-depended predictors for the time for surgery and heart failure hospitalization.


2018 ◽  
Vol 22 (1) ◽  
pp. 1-20 ◽  
Author(s):  
Jose Antonio Belso-Martinez ◽  
Isabel Diez-Vial

Purpose This paper aims to explain how the evolution of knowledge networks and firms’ strategic choices affect innovation. Endogenous factors associated with a path-dependent evolution of the knowledge network are jointly considered with a firm’s development of international relationships and increasing internal absorptive capacity over time. Design/methodology/approach In a biotech cluster, the authors gathered data on the firms’ characteristics and network relationships by asking about the technological knowledge they received in the cluster in 2007 and 2012 – “roster-recall” method. Estimation results were obtained using moderated regression analysis. Findings Firms that increase their involvement in knowledge networks over time also tend to increase their innovative capacity. However, efforts devoted to building international links or absorptive capacity negatively moderate the impact of network growth on innovation. Practical implications Practitioners have two alternative ways of increasing innovation inside knowledge networks: they can increase their centrality by developing their knowledge network interactions or invest in developing their internal absorptive capacity and new international sources of knowledge. Investing in both of these simultaneously does not seem to improve a firm’s innovative capacity. Originality/value Coupling firms’ strategic options with knowledge network dynamics provide a more complete way of explaining how firms can improve their innovative capacity.


2006 ◽  
Vol 67 (3) ◽  
pp. 230-239 ◽  
Author(s):  
John M. Budd

Concerns about higher education abound, and these include concerns about productivity. The present study extends two previous examinations of faculty publishing productivity covering the years 1991 to 1993 and 1995 to 1997. Both members of ARL and a group of institutions included in ACRL’s data set are included. For both groups there are some increases in mean total numbers of publications, although the rate of increase has decreased since the second time period. Per capita rates of publication demonstrate an even flatter pattern. In recent years, there have been some changes in the dynamics of universities’ faculties; there are more part-time faculty and more faculty who are not on the tenure track. These factors, coupled with the publishing data, point to activities that all academic librarians should be aware of.


Author(s):  
Shaul Stampfer

This chapter investigates the phenomenon of remarriage in nineteenth-century eastern Europe, demonstrating its significance in Jewish marital behaviour. Patterns of remarriage deserve attention for a number of reasons: they influenced fertility levels, affected family structure, played a role in networking, and served as an indicator of the importance of marriage in a given society. Remarriage is highly revealing of group characteristics and behaviour, but remarriage in late nineteenth-century eastern Europe merits attention for an additional reason. Patterns of remarriage and their changes over time significantly diverged among various population groups. Eastern Europe is thus an excellent context for examining the impact of significant variables on remarriage by means of a comparative approach. The chapter then evaluates modes of remarriage among four major religious-national groups: Russian Orthodox, Catholics, Protestants, and Jews. It also considers important differences between Jews and Christians in specific patterns of remarriage.


2018 ◽  
Vol 2 (S1) ◽  
pp. 55-55
Author(s):  
Elias M. Samuels ◽  
Thomas E. Perorazio ◽  
Ellen Champagne ◽  
Brenda Eakin

OBJECTIVES/SPECIFIC AIMS: Identify the impact of the provision of clinical and translational research training awards on investigators’ pursuit of clinical and translational research careers. METHODS/STUDY POPULATION: Propensity score matching and qualitative analysis/investigators receiving MICHR’s KL2 research training awards. RESULTS/ANTICIPATED RESULTS: While the evaluations of the impact of this service have shown participants find them to be valuable it is expected that participation in the workshop may be more beneficial to investigators with certain types of prior research experiences and who utilize more CTSA research support. DISCUSSION/SIGNIFICANCE OF IMPACT: Because this evaluation of a research service incorporate data representing investigator’s receipt of different CTSA resources, the findings can be used to inform the ongoing coordination of these services in ways that optimize their impact on the production of clinical and translational research. There is an enduring need for evaluations of CTSA programs to account for investigators’ use of different constellations of research services in order to identify what combinations of services over time are most effective at fostering successful clinical and translational research careers.


2013 ◽  
Vol 16 (10) ◽  
pp. 1277-1284 ◽  
Author(s):  
Petr Dostál ◽  
Jana Müllerová ◽  
Petr Pyšek ◽  
Jan Pergl ◽  
Tereza Klinerová

1995 ◽  
Vol 04 (01) ◽  
pp. 125-129
Author(s):  
B. A. Allen ◽  
P. D. Clayton ◽  
J. J. Cimino

Abstract:The Department of Medical Informatics at Columbia University College of Physicians and Surgeons consists of a faculty of 17 full-and part-time faculty. The Department faculty collaborate with the Department of Computer Science and several clinical departments of the medical center. We offer courses in medical informatics, formal degrees (M.A., M.Phil. and Ph.D.) and a postdoctoral training program. In addition to academic offerings, the close affiliation with the Columbia-Presbyterian Medical Center and the primary responsibilities for clinical information systems offers trainees unique opportunities to work with and develop real-world applications. Faculty research programs include work on the Integrated Advanced Information Management System (IAIMS), Unified Medical Language System (UMLS), High-Perfor-mance Computing and Communications (HPCC), Electronic Medical Records, automated decision support and technology transfer through the Center for Advanced Technology.


2012 ◽  
Vol 482-484 ◽  
pp. 701-706
Author(s):  
Shi Jun Song ◽  
Lian Yu Song ◽  
Cai Feng Qiao ◽  
Long Long Hao

In the installation process of lifting tower cranes, background is complex, the impact of light on the characteristics of the target also changes over time very differently, which led to the installation of monitoring is not easy identified from the characteristics of the separate target in the changing off context. Based on this, this paper presents a model using bitmap which is based on the model of background subtraction to approach to background modeling adding morphological processing; the target feature can be more obvious. This method can identify the characterized target well from the complex background.


2015 ◽  
Vol 25 (6) ◽  
pp. 1023-1030 ◽  
Author(s):  
Jose Alejandro Rauh-Hain ◽  
Sarah C. Connor ◽  
Joel T. Clemmer ◽  
Olivia W. Foley ◽  
Rachel M. Clark ◽  
...  

ObjectiveThe objectives of this study were to evaluate the rates of chemotherapy and radiotherapy delivery in the treatment of uterine serous carcinoma in the Medicare population and to compare clinical outcomes in treated and untreated patients.MethodsThe linked Surveillance, Epidemiology, and End Results and Medicare databases were queried to identify patients with a diagnosis of uterine serous carcinoma between 1992 and 2009. The impact of chemotherapy on survival was analyzed using the Kaplan-Meier method. Factors predictive of outcome were compared using the Cox proportional hazards model.ResultsA total of 2188 patients met study eligibility criteria. Stages I, II, III, and IV diseases accounted for 890 (41%), 174 (8%), 470 (21%), and 654 (30%) of the study population, respectively. Chemotherapy, radiotherapy, both, or none, were administered as adjuvant therapy in 635 (29%), 536 (24%), 308 (14%), and 709 (32%) of the study population, respectively. Use of chemotherapy became more frequent over time. Over the study period, and after adjusting for race, time of diagnosis, SEER registry, marital status, stage, age, surgery, lymph node dissection, socioeconomic status, and comorbidity index, there was an association between receipt of radiotherapy alone (hazard ratio [HR], 1.3; 95% CI, 1.04–1.67) and not receiving any treatment (HR, 1.5; 95% CI, 1.2–2.01) and worst survival. Survival was not improved over time.ConclusionAlthough adjuvant chemotherapy and combination treatment with chemotherapy and radiation were associated with improved survival in our model, there was no significant improvement in survival over time.


2021 ◽  
Vol 7 (3) ◽  
pp. 199
Author(s):  
José Vale ◽  
Nádia Barbosa ◽  
Rui Bertuzi ◽  
Ana Maria Bandeira ◽  
Vera Teixeira Vale

Nowadays, due to the complexity of the relationships with external entities, along with the importance that traditional media and the innovative social media have in creating competitive advantages, it is necessary for companies to collaborate in order to create Intellectual Capital (IC). Although collaboration is crucial to create IC, there is a paucity in literature regarding the effects that a specific type of collaboration may have on the IC of an organisation, specifically a franchising with a mediatic actor. Moreover, literature addressing IC creation and destruction over time is scarce, especially when applied to the construction industry. This paper’s goal is twofold: understanding the longitudinal changes of a construction SME’s Intellectual Capital, regarding its creation and destruction; analysing the impact that a specific inter-organisational collaboration franchising—with a mediatic actor may have on such IC. A single in-depth case study was conducted, allowing to conclude that the actions of an organisation can develop both Intellectual Assets and Intellectual Liabilities. It was also concluded that inter-organisational collaboration, through a franchise with an actor with experience in communication, can generate, in the long term, positive and innovative effects regarding the different IC components, namely the Relational one. More specifically, the paper allowed to ascertain that an organisation’s IC changes over time in a dynamic fashion, i.e., Intellectual Liabilities which emerged before an innovative collaboration can be transformed into Intellectual Assets and create competitive advantages. This paper contributes to stress the importance of managing IC, not only when it is created, but namely in when it can be destroyed, in a context of inter-organisational collaborations applied to a construction SME.


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