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  • Articles  (14)
  • Nucleic Acid Hybridization  (14)
  • American Association for the Advancement of Science (AAAS)  (14)
  • Springer
  • Wiley
  • 2005-2009
  • 1985-1989  (14)
  • 1989  (14)
  • 1
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    Neurotoxicity of a fragment of the amyloid precursor associated with Alzheimer's disease (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-28
    Description: Amyloid deposition in senile plaques and the cerebral vasculature is a marker of Alzheimer's disease. Whether amyloid itself contributes to the neurodegenerative process or is simply a by-product of that process is unknown. Pheochromocytoma (PC12) and fibroblast (NIH 3T3) cell lines were transfected with portions of the gene for the human amyloid precursor protein. Stable PC12 cell transfectants expressing a specific amyloid-containing fragment of the precursor protein gradually degenerated when induced to differentiate into neuronal cells with nerve growth factor. Conditioned medium from these cells was toxic to neurons in primary hippocampal cultures, and the toxic agent could be removed by immunoabsorption with an antibody directed against the amyloid polypeptide. Thus, a peptide derived from the amyloid precursor may be neurotoxic.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yankner, B A -- Dawes, L R -- Fisher, S -- Villa-Komaroff, L -- Oster-Granite, M L -- Neve, R L -- HD 18655/HD/NICHD NIH HHS/ -- HD 18658/HD/NICHD NIH HHS/ -- NS 01240/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Jul 28;245(4916):417-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Harvard Medical School, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2474201" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*etiology/pathology ; Amyloid/genetics/*physiology ; Blotting, Northern ; Cell Line ; Fibroblasts ; Gene Expression Regulation ; Humans ; Immunoblotting ; Neurons/pathology ; Nucleic Acid Hybridization ; Pheochromocytoma ; Protein Precursors/genetics/*physiology ; RNA/analysis/genetics ; Restriction Mapping ; Transfection ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Identification of the cystic fibrosis gene: chromosome walking and jumping (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-08
    Description: An understanding of the basic defect in the inherited disorder cystic fibrosis requires cloning of the cystic fibrosis gene and definition of its protein product. In the absence of direct functional information, chromosomal map position is a guide for locating the gene. Chromosome walking and jumping and complementary DNA hybridization were used to isolate DNA sequences, encompassing more than 500,000 base pairs, from the cystic fibrosis region on the long arm of human chromosome 7. Several transcribed sequences and conserved segments were identified in this cloned region. One of these corresponds to the cystic fibrosis gene and spans approximately 250,000 base pairs of genomic DNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rommens, J M -- Iannuzzi, M C -- Kerem, B -- Drumm, M L -- Melmer, G -- Dean, M -- Rozmahel, R -- Cole, J L -- Kennedy, D -- Hidaka, N -- DK34944/DK/NIDDK NIH HHS/ -- DK39690/DK/NIDDK NIH HHS/ -- N01-CO-74102/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 8;245(4922):1059-65.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Hospital for Sick Children, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772657" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cattle ; Chickens ; *Chromosome Mapping ; *Chromosomes, Human, Pair 7 ; Cloning, Molecular/methods ; Cricetinae ; Cystic Fibrosis/*genetics ; DNA Probes ; Genes, Overlapping ; *Genes, Recessive ; Genetic Markers ; Humans ; Mice ; Nucleic Acid Hybridization ; Restriction Mapping/methods
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Commitment of mouse fibroblasts to adipocyte differentiation by DNA transfection (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-05
    Description: Cells of the mouse cell line 3T3-F442A can be induced by various hormones to differentiate into adipocytes, whereas cells of 3T3-C2, a subclone of 3T3, cannot. However, transfection of DNA from uninduced 3T3-F422A cells into 3T3-C2 cells permits recovery of 3T3-C2 transfectants that differentiate into adipocytes in the presence of insulin. DNA isolated from human fat tissue, when transfected into 3T3-C2 mouse cells, also gives rise to mouse transfectants that are induced to differentiate into adipocytes by the addition of insulin. Apparently, transfection of a trans-regulatory gene (or genes) from 3T3-F442A or human fat cells into 3T3-C2 cells is sufficient to commit 3T3-C2 cells to adipocyte differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, S -- Teicher, L C -- Kazim, D -- Pollack, R E -- Wise, L S -- New York, N.Y. -- Science. 1989 May 5;244(4904):582-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Columbia University, New York, NY 10027.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2470149" target="_blank"〉PubMed〈/a〉
    Keywords: 1-Methyl-3-isobutylxanthine/pharmacology ; Adipose Tissue/*cytology ; Animals ; Cell Differentiation/drug effects ; Cell Line ; DNA/*genetics ; DNA Probes ; DNA Restriction Enzymes ; Dexamethasone/pharmacology ; Fibroblasts/*cytology ; Glycerolphosphate Dehydrogenase/metabolism ; Humans ; Insulin/pharmacology ; Mice ; Molecular Weight ; Nucleic Acid Hybridization ; RNA, Messenger/analysis ; *Transfection
    Print ISSN: 0036-8075
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  • 4
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    Cloning and expression of a Xenopus embryonic gap junction protein (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-03
    Description: Gap junctions in the early amphibian embryo may play a fundamental role in the regulation of differentiation by mediating the cell-to-cell transfer of chemical signals. A complementary DNA encoding a gap junction present in Xenopus oocytes and early embryos has now been cloned and sequenced. This protein sequence is homologous to the well-characterized gap junction structural proteins rat connexin32 and connexin43. RNA blot analysis of total Xenopus oocyte RNA showed hybridization to a single 1.6-kilobase band. This messenger RNA is abundant in oocytes, decreases to levels below the sensitivity of our assay by stage 15 (18 hours), and is not detectable in RNA from a number of adult organs. To confirm that the oocyte cDNA encodes a gap junction channel, the protein was over expressed in Xenopus oocytes by injection of RNA synthesized in vitro. Pairs of RNA-injected oocytes formed many more time- and voltage-sensitive cell-cell channels than water-injected pairs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ebihara, L -- Beyer, E C -- Swenson, K I -- Paul, D L -- Goodenough, D A -- GM18974/GM/NIGMS NIH HHS/ -- GM37751/GM/NIGMS NIH HHS/ -- HL28958-06/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1989 Mar 3;243(4895):1194-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Columbia University, New York, NY 10032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2466337" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Communication ; *Cloning, Molecular ; Connexins ; DNA Probes ; Electric Conductivity ; Female ; Gene Expression Regulation ; Intercellular Junctions/physiology ; Membrane Proteins/*genetics/physiology ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Oocytes/analysis/physiology ; RNA/analysis ; RNA, Messenger/analysis ; Rats ; Tissue Distribution ; Xenopus/*embryology
    Print ISSN: 0036-8075
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  • 5
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    Isolation of a cDNA clone derived from a blood-borne non-A, non-B viral hepatitis genome (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-21
    Description: A random-primed complementary DNA library was constructed from plasma containing the uncharacterized non-A, non-B hepatitis (NANBH) agent and screened with serum from a patient diagnosed with NANBH. A complementary DNA clone was isolated that was shown to encode an antigen associated specifically with NANBH infections. This clone is not derived from host DNA but from an RNA molecule present in NANBH infections that consists of at least 10,000 nucleotides and that is positive-stranded with respect to the encoded NANBH antigen. These data indicate that this clone is derived from the genome of the NANBH agent and are consistent with the agent being similar to the togaviridae or flaviviridae. This molecular approach should be of great value in the isolation and characterization of other unidentified infectious agents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Choo, Q L -- Kuo, G -- Weiner, A J -- Overby, L R -- Bradley, D W -- Houghton, M -- New York, N.Y. -- Science. 1989 Apr 21;244(4902):359-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chiron Corporation, Emeryville, CA 94608.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2523562" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Viral/*genetics ; Bacteriophage lambda/genetics ; DNA/*genetics/isolation & purification ; Hepatitis Antibodies/analysis ; Hepatitis C/*immunology/microbiology ; Hepatitis Viruses/*genetics/immunology ; Hepatitis, Viral, Human/*immunology ; Immunoblotting ; Nucleic Acid Hybridization ; Pan troglodytes ; Protein Biosynthesis ; RNA, Viral/blood/*genetics
    Print ISSN: 0036-8075
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  • 6
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    AP1/jun function is differentially induced in promotion-sensitive and resistant JB6 cells (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-05
    Description: Tumor promoters may bring about events that lead to neoplastic transformation by inducing specific promotion-relevant effector genes. Functional activation of the transacting transcription factor AP-1 by the phorbol ester 12-O-tetradecanoylphorbol-13-acetate (TPA) may play an essential role in this process. Clonal genetic variants of mouse epidermal JB6 cells that are genetically susceptible (P+) or resistant (P-) to promotion of transformation by TPA were transfected with 3XTRE-CAT, a construct that has AP-1 cis-enhancer sequences attached to a reporter gene encoding chloramphenicol acetyltransferase (CAT). Transfected JB6 P+, but not P- variants, showed TPA-inducible CAT synthesis. Epidermal growth factor, another transformation promoter in JB6 cells, also caused P+ specific induction of CAT gene expression. These results demonstrate an association between induced AP-1 function and sensitivity to promotion of neoplastic transformation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bernstein, L R -- Colburn, N H -- New York, N.Y. -- Science. 1989 May 5;244(4904):566-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Johns Hopkins University, Department of Biology, Baltimore, MD 21218.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2541502" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; *Cell Transformation, Neoplastic ; Chloramphenicol O-Acetyltransferase/genetics ; Cloning, Molecular ; DNA-Binding Proteins/genetics/*physiology ; Epidermal Growth Factor/pharmacology ; Epidermis ; Gene Expression Regulation ; Genetic Variation ; Kinetics ; Mice ; Nucleic Acid Hybridization ; Plasmids ; Promoter Regions, Genetic ; Proto-Oncogene Proteins ; Proto-Oncogene Proteins c-jun ; Simplexvirus/genetics ; Tetradecanoylphorbol Acetate/*pharmacology ; Transcription Factors/genetics/*physiology ; Transfection
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  • 7
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    Metastatic hibernomas in transgenic mice expressing an alpha-amylase-SV40 T antigen hybrid gene (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-28
    Description: Mice transgenic for a hybrid gene containing the liver promoter of the mouse amylase gene (Amy-1a) fused to the SV40 tumor antigen coding region unexpected developed malignant brown adipose tissue tumors (malignant hibernomas). Expression of the alpha-amylase gene had previously been thought to be confined to the liver parotid, and pancreas; however, analysis of white and brown adipose tissue from nontransgenic mice revealed expression of the endogenous Amy-1a gene in these tissues. Gene constructs driven by the Amy-1a liver promoter thus provide a means of targeting gene expression to the adipocyte cell lineage in transgenic mice. Moreover the high frequency of metastases in the liver, lungs, spleen, heart, and adrenals of these mice provides an experimental system in which to study the development of disseminated malignancy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fox, N -- Crooke, R -- Hwang, L H -- Schibler, U -- Knowles, B B -- Solter, D -- CA-10815/CA/NCI NIH HHS/ -- CA-18470/CA/NCI NIH HHS/ -- CA-21124/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Apr 28;244(4903):460-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wistar Institute, Philadelphia, PA 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2785714" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/metabolism/pathology ; *Adipose Tissue, Brown/metabolism/pathology ; Animals ; Antigens, Polyomavirus Transforming/*genetics ; Cloning, Molecular ; Gene Expression Regulation ; Liver/metabolism ; Mice ; Mice, Transgenic ; Neoplasm Metastasis ; Neoplasms, Experimental/*genetics/pathology ; Nucleic Acid Hybridization ; Promoter Regions, Genetic ; RNA, Messenger/metabolism ; Tissue Distribution ; Transcription, Genetic ; alpha-Amylases/*genetics
    Print ISSN: 0036-8075
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  • 8
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    Genome mapping goal now in reach (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1989 Apr 28;244(4903):424-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2717935" target="_blank"〉PubMed〈/a〉
    Keywords: *Base Sequence ; *Chromosome Mapping ; *Chromosomes, Human ; DNA/radiation effects ; DNA Probes ; Fluorescent Dyes ; Humans ; Nucleic Acid Hybridization
    Print ISSN: 0036-8075
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  • 9
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    Lutropin-choriogonadotropin receptor: an unusual member of the G protein-coupled receptor family (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-04
    Description: A complementary DNA (cDNA) for the rat luteal lutropin-choriogonadotropin receptor (LH-CG-R) was isolated with the use of a DNA probe generated in a polymerase chain reaction with oligonucleotide primers based on peptide sequences of purified receptor protein. As would be predicted from the cDNA sequence, the LH-CG-R consists of a 26-residue signal peptide, a 341-residue extracellular domain displaying an internal repeat structure characteristic of members of the leucine-rich glycoprotein (LRG) family, and a 333-residue region containing seven transmembrane segments. This membrane-spanning region displays sequence similarity with all members of the G protein-coupled receptor family. Hence, the LH-CG-R gene may have evolved by recombination of LRG and G protein-coupled receptor genes. Cells engineered to express LH-CG-R cDNA bind human choriogonadotropin with high affinity and show an increase in cyclic adenosine monophosphate when exposed to hormone. As revealed by RNA blot analysis and in situ hybridization, the 4.4-kilobase cognate messenger RNA is prominently localized in the rat ovary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McFarland, K C -- Sprengel, R -- Phillips, H S -- Kohler, M -- Rosemblit, N -- Nikolics, K -- Segaloff, D L -- Seeburg, P H -- HD22196/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 Aug 4;245(4917):494-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Biology, Genetech, Inc., South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2502842" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular ; DNA/genetics/isolation & purification ; DNA Probes ; Female ; GTP-Binding Proteins/*physiology ; Glycoproteins/genetics ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Ovary/analysis ; RNA, Messenger/analysis/genetics ; Rats ; Receptors, LH/*genetics ; Sequence Homology, Nucleic Acid ; Tissue Distribution
    Print ISSN: 0036-8075
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  • 10
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    Chromosomal rearrangement generating a composite gene for a developmental transcription factor (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-27
    Description: Differential gene expression in the mother cell chamber of sporulating cells of Bacillus subtilis is determined in part by an RNA polymerase sigma factor called sigma K (or sigma 27). The sigma K factor was assigned as the product of the sporulation gene spoIVCB on the basis of the partial aminoterminal amino acid sequence of the purified protein. The spoIVCB gene is now shown to be a truncated gene capable of specifying only the amino terminal half of sigma K. The carboxyl terminal half is specified by another sporulation gene, spoIIIC, to which spoIVCB becomes joined inframe at an intermediate stage of sporulation by site-specific recombination within a 5-base pair repeated sequence. Juxtaposition of spoIVCB and spoIIIC need not be reversible in that the mother cell and its chromosome are discarded at the end of the developmental cycle. The rearrangement of chromosomal DNA could account for the presence of sigma K selectively in the mother cell and may be a precedent for the generation of cell type-specific regulatory proteins in other developmental systems where cells undergo terminal differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stragier, P -- Kunkel, B -- Kroos, L -- Losick, R -- New York, N.Y. -- Science. 1989 Jan 27;243(4890):507-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Developmental Biology, Harvard University, Cambridge, MA 02138.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2536191" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacillus subtilis/*genetics/physiology ; Base Sequence ; Cloning, Molecular ; DNA Probes ; DNA Restriction Enzymes ; DNA, Bacterial/genetics ; DNA-Directed RNA Polymerases/metabolism ; *Gene Expression Regulation ; *Gene Rearrangement ; *Genes, Bacterial ; Molecular Sequence Data ; Molecular Weight ; Mutation ; Nucleic Acid Hybridization ; Sigma Factor/genetics ; Spores, Bacterial ; Transcription Factors/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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