Publications by authors named "Ahmed Jaber"
Article Synopsis
- Atoms form the building blocks of nature, and their arrangement into molecules can create new technologies when matter interacts with light under strong coupling conditions.
- Achieving strong coupling, especially at terahertz frequencies, is challenging due to the need for precise confinement of the optical field.
- This study presents methods for confining electromagnetic fields that enhance light-matter interactions, achieving significant results like a 200 GHz vacuum Rabi splitting with glucose, which could advance the design of systems that leverage hybrid light-matter states.
Background: Intraoperative adverse events (iAEs) are associated with adverse postoperative outcomes and cause a significant healthcare burden. However, a critical appraisal of iAEs is lacking. Considering the details of iAEs could benefit postoperative care.
View Article and Find Full Text PDFBackground: The risk of reoperations after abdominal and pelvic surgery is multifactorial and difficult to predict. The risk of reoperation is frequently underestimated by surgeons as most reoperations are not related to the initial procedure and diagnosis. During reoperation, adhesiolysis is often required, and patients have an increased risk of complications.
View Article and Find Full Text PDFBackground: Shared governance is a structural framework for operationalizing nursing ownership and accountability for nursing practice. Healthcare institutions are striving to promote healthy and satisfactory work conditions to retain their qualified personnel and achieve organizational stability and high care quality. However, little is known about nurses' participation in governance in developing countries.
View Article and Find Full Text PDFObjectives: To design, deliver and evaluate a programme of training workshops for biomedical researchers aimed at building confidence and skills in actively involving patients and the public (PPI) in research.
Design: A bespoke programme of training workshops in PPI aimed at researchers.
Setting: A large National Institute for Health Research Biomedical Research Centre in London and several partner organisations.
We demonstrate ultrafast tuning of a plasmonic spectral filter at terahertz (THz) frequencies. The device is made of periodically spaced gold crosses deposited on the surface of an undoped silicon wafer in which transient free carriers can be optically injected with a femtosecond resonant pulse. We demonstrate the concept by measuring the transmission spectrum of a notch filter using time-domain THz spectroscopy.
View Article and Find Full Text PDFArticle Synopsis
- Seasonal flu can be a big problem for health and money because it causes a lot of sickness and complications, but it’s hard to know how much it really affects people since some might not show symptoms.
- To get a better understanding, researchers used models and data from the past two flu seasons (2011-2013) in the US and Canada to find out how many cases of flu were actually confirmed by labs.
- They found that millions of people got the flu during those seasons, and using a good method to study the disease can help make better plans for preventing it in the future.
Objective: An extensive literature uses reconstructed historical smoking rates by birth-cohort to inform anti-smoking policies. This paper examines whether and how these rates change when one adjusts for differential mortality of smokers and non-smokers.
Methods: Using retrospectively reported data from the US (Panel Study of Income Dynamics, 1986, 1999, 2001, 2003, 2005), the UK (British Household Panel Survey, 1999, 2002), and Russia (Russian Longitudinal Monitoring Study, 2000), we generate life-course smoking prevalence rates by age-cohort.