User profiles for Khalifa S. Al-Khalifa

Khalifa Al-Khalifa

Associate Professor of Dental Public Health, Preventive Dental Sciences Department …
Verified email at uod.edu.sa
Cited by 1520

Structural joins: A primitive for efficient XML query pattern matching

S Al-Khalifa, HV Jagadish, N Koudas… - … Conference on Data …, 2002 - ieeexplore.ieee.org
XML queries typically specify patterns of selection predicates on multiple elements that have
some specified tree structured relationships. The primitive tree structured relationships are …

Timber: A native xml database

HV Jagadish, S Al-Khalifa, A Chapman… - The VLDB journal, 2002 - Springer
This paper describes the overall design and architecture of the Timber XML database system
currently being implemented at the University of Michigan. The system is based upon a …

Mycotic infection of the ear (otomycosis): a prospective study

KO Paulose, S Al Khalifa, P Shenoy… - The Journal of …, 1989 - cambridge.org
Otomycosis (fungal infection of the ear) is a not uncommon clinical problem encountered in
our ENT practice. It makes up to 6 per cent of all patients with symptoms of ear disease seen …

[HTML][HTML] Pandemic preparedness of dentists against coronavirus disease: A Saudi Arabian experience

KS Al-Khalifa, R AlSheikh, AS Al-Swuailem… - PloS one, 2020 - journals.plos.org
Background Dental offices are among the highest risk for transmission of the COVID-19,
having the potential to transmit the virus via routine dental procedures. This cross-sectional …

[HTML][HTML] Micro-osteoperforations and its effect on the rate of tooth movement: a systematic review

KS Al-Khalifa, HA Baeshen - European Journal of Dentistry, 2021 - thieme-connect.com
Prolonged orthodontic treatments have inconvenienced patients and clinicians alike. Surgically
assisted techniques for accelerating orthodontic tooth movement have shown promising …

[HTML][HTML] Teledentistry awareness among dental professionals in Saudi Arabia

KS Al-Khalifa, R AlSheikh - PLoS One, 2020 - journals.plos.org
Background Teledentistry is believed to improve dentalcare provided to patients and time
management efficiency. In addition, teledentistry can be a useful tool for peer education, …

[PDF][PDF] Traditional medicinal plants indigenous to Al-Rass province, Saudi Arabia

GE El-Ghazali, KS Al-Khalifa, GA Saleem… - Journal of Medicinal …, 2010 - researchgate.net
An ethnobotanical survey was conducted in different localities of Al-Rass province, Qassim
area, Saudi Arabia. Information about the local and scientific names, parts used and …

[PDF][PDF] Multicomponent gas mixture analysis using a single tin oxide sensor and dynamic pattern recognition

E Llobet, R Ionescu, S Al-Khalifa, J Brezmes… - IEEE Sensors …, 2001 - academia.edu
A new method, which is based on the discrete wavelet transform, is presented for extracting
important features from the response transients of a micromachined, tin oxide-based gas …

[HTML][HTML] The use of social media for professional purposes among dentists in Saudi Arabia

KS Al-Khalifa, AS Al-Swuailem, R AlSheikh… - BMC Oral Health, 2021 - Springer
Aim To investigate the dentists’ opinions towards social media (SM) use in daily practice
and the expected limitations from its use in Saudi Arabia. Methods An electronic survey was …

Ebsar: Indoor guidance for the visually impaired

S Al-Khalifa, M Al-Razgan - Computers & Electrical Engineering, 2016 - Elsevier
… : x 2 = x 1 + r c o s θ y 2 = y 1 + r s i n θ w h e r e : x 1 , y 1 a … s o f t h e s t a r t p o i n t r i s t h
e d i s t a n c e , i n s t e p s , w a l k e d b y t h e u s e r θ i s t h e a n g l e b e t w e e n t h e p o s