Evaluation of Air Injection into Mature SAGD Chambers as a Follow Up/Wind-Down Strategy, Using a Novel Large Scale 3-D Physical Model

2019 ◽  
Author(s):  
Ehsan Aminfar ◽  
Belenitza Sequera-Dalton ◽  
Sudarshan Raj Mehta ◽  
Gordon Moore ◽  
Matthew Ursenbach
Keyword(s):  
Physical Model ◽  
Large Scale ◽  
Air Injection

Therapy of post-stroke depression – a systematic review

2013 ◽  
Vol 10 (02) ◽  
pp. 108-129 ◽  
Author(s):  
W. Gaebel ◽  
W. Wannagat ◽  
J. Zielasek
Keyword(s):  
Systematic Review ◽  
Large Scale ◽  
Repetitive Transcranial Magnetic Stimulation ◽  
Placebo Control ◽  
Post Stroke ◽  
Pharmacological Studies ◽  
Post Stroke Depression ◽  
Control Procedures ◽  
Antidepressant Pharmacotherapy

SummaryWe performed a systematic review of randomized placebo-controlled pharmacological and non-pharmacological trials for the therapy and prevention of post-stroke depression that have been published between 1980 and 2011. We initially identified 2 260 records of which 28 studies were finally included into this review. A meta-analytic approach was hampered by considerable differences regarding the kinds of therapeutic regimens and the study durations. Modest effects favoring treatment of post-stroke depression could be found for pharmacological treatment as well as repetitive transcranial magnetic stimulation. For the prevention of post-stroke depression, antidepressant pharmacotherapy showed promising results. However, large-scale studies with better standardized study populations, optimized placebo control procedures in non-pharmacological studies, and replication in larger follow-up studies are still necessary to find the optimal therapeutic regimens to prevent and treat post-stroke depression.

The Effect of the Familiarity of a Survey Sender on Response Outcomes in a Large-Scale Survey of Emergency Medical Services Agencies

2021 ◽  
Vol 44 (3) ◽  
pp. 260-267
Author(s):  
Morgan M. Millar ◽  
Hilary A. Hewes ◽  
Andrea L. Genovesi ◽  
Michael Ely ◽  
Braden Green ◽  
...  
Keyword(s):  
Emergency Medical Services ◽  
Large Scale ◽  
Nationwide Survey ◽  
Survey Response ◽  
Medical Services ◽  
Healthcare Organizations ◽  
Emergency Medical ◽  
Established Relationship ◽  
To Receive

Survey response is higher when the request comes from a familiar entity compared to an unknown sender. Little is known about how sender influences response to surveys of organizations. We assessed whether familiarity of the sender influences response outcomes in a survey of emergency medical services agencies. Emergency medical services agencies in one U.S. state were randomly assigned to receive survey emails from either a familiar or unfamiliar sender. Both deployment approaches were subsequently used nationwide, with each state selecting one of the two contact methods. Experimental results showed that requests from the familiar sender achieved higher survey response (54.3%) compared to requests from the unfamiliar sender (36.9%; OR: 2.03; 95% CI: 1.23, 3.33). Similar results were observed in the subsequent nationwide survey; in states where the familiar sender deployed the survey, 62.0% of agencies responded, compared to 51.0% when the survey was sent by the unfamiliar sender (OR: 1.57; 95% CI: 1.47, 1.67). The response difference resulted in nearly 60 additional hours of staff time needed to perform telephone follow-up to nonrespondents. When surveying healthcare organizations, surveyors should recognize that it is more challenging to obtain responses without a pre-established relationship with the organizations.

scholarly journals Evaluating the Long-Term Efficacy of COVID-19 Vaccines

2021 ◽  
Author(s):  
Dan-Yu Lin ◽  
Donglin Zeng ◽  
Peter B Gilbert
Keyword(s):  
Large Scale ◽  
Crossover Designs ◽  
Phase 3 ◽  
Term Efficacy ◽  
Timely Access ◽  
Efficacious Vaccine ◽  
Trial Participants ◽  
Ongoing Phase

Abstract Large-scale deployment of safe and durably effective vaccines can curtail the COVID-19 pandemic.1−3 However, the high vaccine efficacy (VE) reported by ongoing phase 3 placebo-controlled clinical trials is based on a median follow-up time of only about two months4−5 and thus does not pertain to long-term efficacy. To evaluate the duration of pro- tection while allowing trial participants timely access to efficacious vaccine, investigators can sequentially cross participants over from the placebo arm to the vaccine arm according to priority groups. Here, we show how to estimate potentially time-varying placebo-controlled VE in this type of staggered vaccination of participants. In addition, we compare the per- formance of blinded and unblinded crossover designs in estimating long-term VE.

scholarly journals Amlodipine induced Gingival Overgrowth in Patients at a Tertiary Level Hospital of Nepal

2018 ◽  
Vol 2 (1) ◽  
pp. 2-5
Author(s):  
Arun Sharma ◽  
Rinku Joshi ◽  
Sweta Rajya Laxmi Rana ◽  
Dhan Bahadur Shrestha ◽  
Pramod Raj Joshi ◽  
...  
Keyword(s):  
Large Scale ◽  
Tertiary Level ◽  
Gingival Overgrowth ◽  
Record Keeping ◽  
Institutional Review ◽  
Short Term Study ◽  
Rare Side Effect ◽  
Low Prevalence ◽  
Ethical Clearance

Background: Amlodipine is a commonly prescribed anti-hypertensive in clinical practice. Gingival overgrowth is a rare side effect of this drug; with a reported prevalence of 1.7-3.3% in literature. Gingival overgrowth can cause aesthetic and functional problems as well as cause hindrance to maintain proper oral hygiene, thereby deteriorating the periodontal condition of the patient. The prevalence of Amlodipine induced gingival overgrowth is poorly defined in our country. Aim: This study aims to assess Amlodipine induced gingival overgrowth in a tertiary level referral hospital of Nepal Army. Materials and Methods: This study was conducted on hypertensive patients with amlodipine therapy under regular follow up in the Department of Internal Medicine of Shree Birendra Hospital from September to December 2017. The data from record keeping was used for the study. Ethical clearance from Institutional Review committee of Nepal Army Institute of Health Sciences was obtained before conducting the study. Results: Out of 507 patients taking amlodipine, 240 were eligible for study and six (2.5%) were found to have amlodipine induced gingival overgrowth. These patients were on a dose of 5-10 mg over six months to 25 years. The gingival overgrowth was correlated with dose and duration which was statistically significant (p<0.05). Conclusion: Low prevalence of amlodipine induced gingival overgrowth and correlation with dose and duration was seen in this short-term study. However further large-scale follow-up studies may be required to assess the severity of the problem.

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