]> BibSonomy publications for /author/Albrecht http://www.bibsonomy.org/burst/author/Albrecht BibSonomy BuRST Feed for /author/Albrecht 2008-07-27T02:19:46+02:00 Algebraic Attacks on the Courtois Toy Cipher. dblphttp://www.bibsonomy.org/bibtex/2b2dedf27798426e6cbbf1ec325a4ff09/dblp dblp 2008-07-23T00:00:00+02:00 dblp
Algebraic Attacks on the Courtois Toy Cipher.
Martin Albrecht Cryptologia 32 220-276 (2008)
to dblp by dblp on 2008-07-23 00:00:00 ]]> Cryptologia3220-276Algebraic Attacks on the Courtois Toy Cipher.322008dblp 2008-07-23 00:00:00.0 Spychips: how major corporations and government plan to track your every move with RFID http://www.bibsonomy.org/bibtex/22acf50b507bf7488674e5d24861e011e/pape pape 2008-07-22T13:15:41+02:00 RFID
Spychips: how major corporations and government plan to track your every move with RFID
Katherine Albrecht and Liz McIntyre 270 (2005)
to RFID by pape on 2008-07-22 13:15:41 ]]> Nashville, Tennessee270Spychips: how major corporations and government plan to track your every move with RFID2005RFID 2008-07-22 13:15:41.0Synopsis As you walk down the street, a tiny microchip implanted in your tennis shoe tracks your everymove; chips woven into your clothing transmit the value of your outfit to nearby retailers; and a thief scans the chips hidden inside your money to decide if you’re worth robbing. This isn’t science fiction; in a few short years, it could be a fact of life. Spychips takes readers into the frightening world of Radio Frequency Identification (RFID).While manufacturers and the government want you to believe that they would never misuse the technology, the future looks like an Orwellian nightmare when you consider the possibilities of surveillance and tracking these chips embody. Combining in-depth research with firsthand reporting, Spychips reveals how RFID technology, if left unchecked, could soon destroy our privacy, radically alter the economy, and open the floodgates for civil liberty abuses. Biography Dr. Katherine Albrecht is the founder and director of CASPIAN, an international consumer group. Dubbed the "Erin Brockovich" of RFID by Wired magazine, she is one of the leading voices for privacy in today's fast-changing, high-tech world. Katherine holds a doctorate in education from Harvard University. Liz McIntyre is an award-winning investigative writer with a flair for exposing corporate shenanigans and bureaucratic misdeeds. She serves as CASPIAN's communications director and has been the master strategist for many of the organization's most successful media campaigns. The long tail of social networking - Revenue models of social networking sites http://www.bibsonomy.org/bibtex/298efa6e7926e6a8e1d4b63bc06b84aa9/kochm kochm 2008-07-18T22:06:25+02:00 businessmodel longtail networking socialnetworking socialnetworkingservices stayfriends web2.0 xing
The long tail of social networking - Revenue models of social networking sites
Albrecht Enders and Harald Hungenberg and Hans-Peter Denker and Sebastian Mauch European Management Journal 26 199-211 (2008)
to businessmodel longtail networking socialnetworking socialnetworkingservices stayfriends web2.0 xing by kochm on 2008-07-18 22:06:25 ]]> European Management Journal199-211The long tail of social networking - Revenue models of social networking sites262008businessmodel longtail networking socialnetworking socialnetworkingservices stayfriends web2.0 xing 2008-07-18 22:06:25.0 Comparison of the observed with the simulated distributions of the parental genome contribution in two marker-assisted backcross programs in rice http://www.bibsonomy.org/bibtex/25a8bd10a0596d70410b7446b99e8b0ca/ifzbiometrie ifzbiometrie 2008-07-18T09:35:28+02:00 IFZ imported
Comparison of the observed with the simulated distributions of the parental genome contribution in two marker-assisted backcross programs in rice
Vanessa Prigge and Hans Peter Maurer and David J. Mackill and Albrecht E. Melchinger and Matthias Frisch THEORETICAL AND APPLIED GENETICS 116 739-744 (2008)
to IFZ imported by ifzbiometrie on 2008-07-18 09:35:28 ]]> THEORETICAL AND APPLIED GENETICS5739-744Comparison of the observed with the simulated distributions of the parental genome contribution in two marker-assisted backcross programs in rice1162008IFZ imported 2008-07-18 09:35:28.0Computer simulations are useful tools to optimize marker-assisted breeding programs. The objective of our study was to investigate the closeness of computer simulations of the recurrent parent genome recovery with experimental data obtained in two marker-assisted backcrossing programs in rice (Orzya sativa L.). We simulated the breeding programs as they were practically carried out. In the simulations we estimated the frequency distributions of the recurrent parent genome proportion in the backcross populations. The simulated distributions were in good agreement with those obtained practically. The simulation results were also observed to be robust with respect to the choice of the mapping function and the accuracy of the linkage map. We conclude that computer simulations are a useful tool for pre-experiment estimation of selection response in marker-assisted backcrossing. Population genetic simulation and data analysis with Plabsoft http://www.bibsonomy.org/bibtex/21925246e143e3600e94d199032b1b639/ifzbiometrie ifzbiometrie 2008-07-18T09:35:28+02:00 IFZ breeding_informatics computer_simulation data_analysis genetics population
Population genetic simulation and data analysis with Plabsoft
Hans Peter Maurer and Albrecht E. Melchinger and Matthias Frisch EUPHYTICA 161 133-139 (2008)
to IFZ breeding_informatics computer_simulation data_analysis genetics population by ifzbiometrie on 2008-07-18 09:35:28 ]]> EUPHYTICA1-2133-139Population genetic simulation and data analysis with Plabsoft1612008IFZ breeding_informatics computer_simulation data_analysis genetics population 2008-07-18 09:35:28.0Computer simulations are a useful tool to solve problems in population genetics for which no analytical solutions are available. We developed Plabsoft, a powerful and flexible software for population genetic simulation and data analysis. Various mating systems can be simulated, comprising planned crosses, random mating, partial selfing, selfing, single-seed descent, double haploids, topcrosses, and factorials. Selection can be simulated according to selection indices based on phenotypic values and/or molecular marker scores. Data analysis routines are provided to analyze simulated and experimental datasets for allele and genotype frequencies, genotypic and phenotypic values and variances, molecular genetic diversity, linkage disequilibrium, and parameters to optimize marker-assisted backcrossing programs. Plabsoft has already been employed in numerous studies, we chose some of them to illustrate the functionality of the software. Precision of recombination frequency estimates after random intermating with finite population sizes http://www.bibsonomy.org/bibtex/2d2c146d499940fe32a1772cff71cedf4/ifzbiometrie ifzbiometrie 2008-07-18T09:35:28+02:00 IFZ imported
Precision of recombination frequency estimates after random intermating with finite population sizes
Matthias Frisch and Albrecht E. Melchinger GENETICS 178 597-600 (2008)
to IFZ imported by ifzbiometrie on 2008-07-18 09:35:28 ]]> GENETICS1597-600Precision of recombination frequency estimates after random intermating with finite population sizes1782008IFZ imported 2008-07-18 09:35:28.0Random intermating of F-2 populations has been suggested for obtaining precise estimates of recombination frequencies between tightly linked loci. In a simulation study, sampling effects due to small population sizes in the intermating generations were found to abolish the advantages of random intermating that were reported in previous theoretical Studies considering an infinite Population size. We propose a mating scheme for intermating with planned crosses that yields more precise estimates than those under random intermating. The Plabsoft database: a comprehensive database management system for integrating phenotypic and genomic data in academic and commercial plant breeding programs http://www.bibsonomy.org/bibtex/2d0f676661abbf1054fa47c96ef137b52/ifzbiometrie ifzbiometrie 2008-07-18T09:35:28+02:00 IFZ breeding_informatics database statistical_analyses
The Plabsoft database: a comprehensive database management system for integrating phenotypic and genomic data in academic and commercial plant breeding programs
Martin Heckenberger and Hans Peter Maurer and Albrecht E. Melchinger and Matthias Frisch EUPHYTICA 161 173-179 (2008)
to IFZ breeding_informatics database statistical_analyses by ifzbiometrie on 2008-07-18 09:35:28 ]]> EUPHYTICA1-2173-179The Plabsoft database: a comprehensive database management system for integrating phenotypic and genomic data in academic and commercial plant breeding programs1612008IFZ breeding_informatics database statistical_analyses 2008-07-18 09:35:28.0Besides phenotypic data from field trials and molecular data from lab experiments, modern plant breeding programs generate a wide variety of data, for instance pedigree, randomization, geostatistical or climate data. Due to the lack of an integrated database system, breeders generally exploit only part of these data for selection decisions or retrieve only part of the information present in the data. Most approaches in genomics, however, develop their full power only when they are based on analyses of large numbers of genotypes from multiple crosses and current as well as past generations. We have developed a flexible data management and -analyses system for storage and quality control of plant breeding data. It is implemented using the PostgreSQL database management system and linked to the R software environment for integrated statistical analyses of phenotypic and genomic data. The database structure is capable of managing the following types of data observed in breeding programs of all major crops: (a) germplasm data of any species including pedigree data, (b) phenotypic data of any trait and trait complexity, (c) trial management data for any field and trial design, (d) molecular marker data for all common types of markers, as well as (e) project and study management data. Prediction of single-cross hybrid performance in maize using haplotype blocks associated with QTL for grain yield http://www.bibsonomy.org/bibtex/2cea0fc578f808754b5b3e76d0705d126/ifzbiometrie ifzbiometrie 2008-07-18T09:35:28+02:00 IFZ imported
Prediction of single-cross hybrid performance in maize using haplotype blocks associated with QTL for grain yield
Tobias A. Schrag and Hans Peter Maurer and Albrecht E. Melchinger and Hans-Peter Piepho and Johan Peleman and Matthias Frisch THEORETICAL AND APPLIED GENETICS 114 1345-1355 (2007)
to IFZ imported by ifzbiometrie on 2008-07-18 09:35:28 ]]> THEORETICAL AND APPLIED GENETICS81345-1355Prediction of single-cross hybrid performance in maize using haplotype blocks associated with QTL for grain yield1142007IFZ imported 2008-07-18 09:35:28.0Marker-based prediction of hybrid performance facilitates the identification of untested single-cross hybrids with superior yield performance. Our objectives were to (1) determine the haplotype block structure of experimental germplasm from a hybrid maize breeding program, (2) develop models for hybrid performance prediction based on haplotype blocks, and (3) compare hybrid performance prediction based on haplotype blocks with other approaches, based on single AFLP markers or general combining ability (GCA), under a validation scenario relevant for practical breeding. In total, 270 hybrids were evaluated for grain yield in four Dent x Flint factorial mating experiments. Their parental inbred lines were genotyped with 20 AFLP primer-enzyme combinations. Adjacent marker loci were combined into haplotype blocks. Hybrid performance was predicted on basis of single marker loci and haplotype blocks. Prediction based on variable haplotype block length resulted in an improved prediction of hybrid performance compared with the use of single AFLP markers. Estimates of prediction efficiency (R-2) ranged from 0.305 to 0.889 for marker-based prediction and from 0.465 to 0.898 for GCA-based prediction. For inter-group hybrids with predominance of general over specific combining ability, the hybrid prediction from GCA effects was efficient in identifying promising hybrids. Considering the advantage of haplotype block approaches over single marker approaches for the prediction of inter-group hybrids, we see a high potential to substantially improve the efficiency of hybrid breeding programs. Variance of the parental genome contribution to inbred lines derived from biparental crosses http://www.bibsonomy.org/bibtex/253f3f3fc17b81617b61f3cdc1ae26e90/ifzbiometrie ifzbiometrie 2008-07-18T09:35:28+02:00 IFZ imported
Variance of the parental genome contribution to inbred lines derived from biparental crosses
Matthias Frisch and Albrecht E. Melchinger GENETICS 176 477-488 (2007)
to IFZ imported by ifzbiometrie on 2008-07-18 09:35:28 ]]> GENETICS1477-488Variance of the parental genome contribution to inbred lines derived from biparental crosses1762007IFZ imported 2008-07-18 09:35:28.0The expectation of the parental genome contribution to inbred lines derived from biparental crosses or backcrosses is well known, but no theoretical results exist for its variance. Our objective was to derive the variance of the parental genome contribution to inbred lines developed by the single-seed descent or double haploid method from biparental crosses or backcrosses. We derived formulas and tabulated results for the variance of the parental genome contribution depending on the chromosome lengths and the mating scheme used for inbred line development. A normal approximation of the probability distribution function of the parental genome contribution fitted well the exact distribution obtained from computer simulations. We determined upper and lower quantiles of the parental genome contribution for model genomes of sugar beet, maize, and wheat using normal approximations. These can be employed to detect essentially derived varieties in the context of plant variety protection. Furthermore, we outlined the application of our results to predict the response to selection. Our results on the variance of the parental genome contribution can assist breeders and geneticists in the design of experiments or breeding programs by assessing the variation around the mean parental genome contribution for alternative crossing schemes. Towards a Theory of Participation in Architecture: An Examination of Humanistic Planning Theories http://www.bibsonomy.org/bibtex/2cc3f25a6b1dd80628d4f39c2edc2a6df/snauth snauth 2008-07-13T11:15:48+02:00 architecture,critique,democracy,Friedmann,humanism,participation,social learning
Towards a Theory of Participation in Architecture: An Examination of Humanistic Planning Theories
Johann Albrecht Journal of Architectural Education (1984-) 42 24-31 (1988)
to architecture,critique,democracy,Friedmann,humanism,participation,social learning by snauth on 2008-07-13 11:15:48 ]]> Journal of Architectural Education (1984-)24-31Towards a Theory of Participation in Architecture: An Examination of Humanistic Planning Theories421988architecture,critique,democracy,Friedmann,humanism,participation,social learning 2008-07-13 11:15:48.0