TY  - JOUR
A1  - Ambrasat, Jens
A1  - von Scheve, Christian
A1  - Schauenburg, Gesche
A1  - Conrad, Markus
A1  - Schröder, Tobias
T1  - Unpacking the Habitus: Meaning Making Across Lifestyles
JF  - Sociological Forum
KW  - cognition
KW  - culture
KW  - habitus
KW  - identity
KW  - lifestyles
KW  - stratification
Y1  - 2016
U6  - https://doi.org/10.1111/socf.12293
SN  - 0884-8971
SN  - 1573-7861
VL  - 31
SP  - 994
EP  - 1017
PB  - Wiley-Blackwell
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Richter, Dania
A1  - Schröder-Esselbach, Boris
A1  - Hartmann, Niklas K.
A1  - Matuschka, Franz-Rainer
T1  - Spatial stratification of various Lyme disease spirochetes in a Central European site
JF  - FEMS microbiology ecology
N2  - To determine whether the genospecies composition of Lyme disease spirochetes is spatially stratified, we collected questing Ixodes ricinus ticks in neighboring plots where rodents, birds, and lizards were present as reservoir host and compared the prevalence of various genospecies. The overall prevalence of spirochetes in questing ticks varied across the study site. Borrelia lusitaniae appeared to infect adult ticks in one plot at the same frequency as did Borrelia afzelii in the other plots. The relative density of questing nymphal and adult ticks varied profoundly. Where lizards were exceedingly abundant, these vertebrates seemed to constitute the dominant host for nymphal ticks, contributing the majority of infected adult ticks. Because lizards support solely B.lusitaniae and appear to exclude other genospecies, their narrow genospecies association results in predominance of B.lusitaniae in sites where lizards are abundant, while limiting its spread to the host's habitat range. To the extent that Central European B.lusitaniae strains are nonpathogenic, the presence of numerous lizards should locally decrease risk of infection for people. Evaluation of regional risk of infection by Lyme disease spirochetes should take the spatial effect of hosts into consideration, which stratify the distribution of specifically infected ticks on a small scale.
KW  - Lyme disease
KW  - Borrelia lusitaniae
KW  - Borrelia afzelii
KW  - stratification
KW  - lizard
KW  - zooprophylaxis
Y1  - 2013
U6  - https://doi.org/10.1111/1574-6941.12029
SN  - 0168-6496
VL  - 83
IS  - 3
SP  - 738
EP  - 744
PB  - Wiley-Blackwell
CY  - Hoboken
ER  - 
TY  - CHAP
A1  - Seipel, Dietmar
T1  - Practical Applications of Extended Deductive Databases in DATALOG*
N2  - A wide range of additional forward chaining applications could be realized with deductive databases, if their rule formalism, their immediate consequence operator, and their fixpoint iteration process would be more flexible. Deductive databases normally represent knowledge using stratified Datalog programs with default negation. But many practical applications of forward chaining require an extensible set of user–defined built–in predicates. Moreover, they often need function symbols for building complex data structures, and the stratified fixpoint iteration has to be extended by aggregation operations. We present an new language Datalog*, which extends Datalog by stratified meta–predicates (including default negation), function symbols, and user–defined built–in predicates, which are implemented and evaluated top–down in Prolog. All predicates are subject to the same backtracking mechanism. The bottom–up fixpoint iteration can aggregate the derived facts after each iteration based on user–defined Prolog predicates.
KW  - deductive databases
KW  - Prolog
KW  - forward / backward chaining
KW  - bottom–up
KW  - top– down
KW  - built–in predicates
KW  - stratification
KW  - function symbols
KW  - XM
Y1  - 2010
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-41457
ER  -