Results 51 to 60 of about 232,526 (232)

Norma Z39.50, actualidad, posibilidades. ¿Es necesario un cambio de actitud?

open access: yesRevista Española de Documentación Científica, 1998
La tecnología de los sistemas basados en la norma Z39.50 ofrece numerosas posibilidades, a priori bastante prometedoras. Conectividad de sistemas, recuperación de información muy estructurada, redefinición de aplicaciones (robots de búsqueda, agentes...),
A. de la Rosa Piñero   +2 more
doaj   +1 more source

An Efficient Algorithm for Optimizing Adaptive Quantum Metrology Processes

open access: yes, 2011
Quantum-enhanced metrology infers an unknown quantity with accuracy beyond the standard quantum limit (SQL). Feedback-based metrological techniques are promising for beating the SQL but devising the feedback procedures is difficult and inefficient.
A. Hentschel   +11 more
core   +1 more source

Permanent Pacemaker Implantation Following Transcatheter Aortic Valve Replacement: Incidence, Predictors, and Association With Reduced Ischemic Stroke Risk

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Development of conduction abnormalities requiring pacing after transcatheter aortic valve replacement (TAVR) is relatively common. The effects of post‐TAVR permanent pacemaker (PPM) implantation on mortality, ischemic stroke, and cardiovascular outcomes remain incompletely characterized.
Omar Saleh   +7 more
wiley   +1 more source

CHOOSING THE APPROPRIATE DATABASE TYPE: A COMPARISON OF SQL, NOSQL, AND NEWSQL [PDF]

open access: yesAnalele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie
Databases are data collections organized for easy access and management, available simultaneously to multiusers. Access to the data can be controlled through various permissions, ensuring that users have the appropriate level of access based on their
BABUCEA ANA-GABRIELA
doaj  

Survey of Just-in-Time Query Compilation Methods

open access: yesТруды Института системного программирования РАН, 2018
Data processing systems have been traditionally optimized for I/O, mainly because, until pretty recently, disk storage has been the most affordable type of storage and the most prevalent one.
E. Y. Sharygin, R. A. Buchatskiy
doaj   +1 more source

Effect of semantic distance on learning structured query language: An empirical study

open access: yesFrontiers in Psychology, 2022
Students of database courses usually encounter difficulties in learning structured query language (SQL). Numerous studies have been conducted to improve how students learn SQL. However, learning SQL remains difficult. This study analyzed the difficulties
Shin-Shing Shin
doaj   +1 more source

Pattern of Progression of Oral Potentially Malignant Disorders From Real‐World Data: A 24‐Year Study

open access: yesHead &Neck, EarlyView.
ABSTRACT Background Oral potentially malignant disorder (OPMD) prognostication is limited by uncertainty of which lesions will progress and the aggressiveness of lesion progression. We defined patterns and kinetics of progression in a large cohort of OPMD subjected to serial clinical and histologic examinations. Methods This 24‐year study evaluated the
Subin Surendran   +16 more
wiley   +1 more source

Queries with Guarded Negation (full version) [PDF]

open access: yes, 2012
A well-established and fundamental insight in database theory is that negation (also known as complementation) tends to make queries difficult to process and difficult to reason about.
Barany, Vince   +2 more
core  

Chemotherapy‐Induced Nausea and Vomiting in Early Breast Cancer Patients Receiving Adjuvant Chemotherapy With Fluorouracil, Epirubicin, Cyclophosphamide Followed by Docetaxel Versus an Anthracycline‐Free Regimen With Docetaxel, Cyclophosphamide—Results From a Randomized Clinical Trial

open access: yesInternational Journal of Cancer, EarlyView.
Chemotherapy‐induced nausea and vomiting (CINV) remains a significant clinical problem despite modern antiemetics. In particular, antiemetic strategies for emerging cancer therapies lack detailed evaluation. This randomized trial analyzed hourly CINV data for patients with early breast cancer who received either docetaxel plus cyclophosphamide (TC) or ...
Manuel Hörner   +16 more
wiley   +1 more source

Data Management: 25 Years of Forecasts

open access: yesТруды Института системного программирования РАН, 2018
In October 2013, the eighth meeting of researchers in the field of databases was held. The first such meeting took place in February 1988, so that 25 years passed between them.
S. D. Kuznetsov
doaj   +1 more source

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