Results 51 to 60 of about 1,528 (89)

<i>MEDIotWALL</i>: Securing Smart Healthcare Environments Through IoT Firewalls. [PDF]

Sensors (Basel)
Gosálvez-White I, Rodríguez-Martín N, Barajas-García N, Mena-Gallardo C, García-Teodoro P.   +4 more
europepmc   +1 more source

Comprehensive genomic analysis of genetic diversity, body size, and origins of the Hetian Gray donkey. [PDF]

BMC Genomics
Li YY, Liu Y, Liu SQ, He YG, Lin XR, Li Y, Yang T, Feng M, Zhang HT, Wang XY, Yao RY, Zhou MH, Zhao CJ.   +12 more
europepmc   +1 more source

Area of habitat maps and validated occurrences for neotropical birds of conservation concern. [PDF]

Sci Data
Carrillo-Restrepo JC, Linero-Triana D, Herzog SK, Velásquez-Tibatá JI.   +3 more
europepmc   +1 more source

Exploring the levels of variation, inequality and use of physical activity intervention referrals in England primary care from 2017-2020: a retrospective cohort study. [PDF]

BMJ Open
Jani A, Liyanage H, Okusi C, Sherlock J, Hoang U, McGagh D, Williams J, Ferreira F, Yonova I, de Lusignan S.   +9 more
europepmc   +1 more source

WiPFIM: A digital platform for interlinking biocollections of wild plants, fruits, associated insects, and their molecular barcodes. [PDF]

Ecol Evol
Onyango B, Copeland R, Mbogholi J, Wamalwa M, Kibet C, Tonnang HEZ, Senagi K.   +6 more
europepmc   +1 more source

Physical exercise and adolescent mental toughness: mediating effects of family support and socioeconomic status. [PDF]

Front Psychol
Yuan W, Wang G, Wang Z.
europepmc   +1 more source

Null values in SQL

ACM SIGMOD Record, 2008
In various writings over the past 20 years, such as [3], Date has pointed out that SQL produces incorrect answers to some queries where a null value is included in a table. In a recent article in the ACM SIGMOD Record, [8], Rubinson states that "Date misinterprets the meaning of his example query" and "SQL returns the correct answer to the query posed".
John Grant
openaire   +3 more sources

Nulls, three-valued logic, and ambiguity in SQL

ACM SIGMOD Record, 2007
Date's popular critique of SQL's three-valued logic [4, 3] purports to demonstrate that SQL queries can produce erroneous results when nulls are present in the database. I argue that this critique is flawed in that Date misinterprets the meaning of his example query.
Claude Rubinson
openaire   +3 more sources