cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.uumkns
title: Occurrence Download

description: A dataset containing 171 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Cuscuta psorothamnensis Stefanovic, M.A.García & Costea",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 171 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010713-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.y2rkma
title: Occurrence Download

description: A dataset containing 104 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Cuscuta veatchii Brandegee",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 104 records from 26 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010715-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ank7ar
title: Occurrence Download

description: A dataset containing 1586 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "Geometry POLYGON((-90.4899 20.02629,-87.61769 19.7841,-86.76971 21.59685,-87.5596 21.56344,-88.14566 21.72074,-90.28602 21.25006,-90.5026 20.7911,-90.4899 20.02629))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "PublishingOrg is 28eb1a3f-1c15-4a95-931a-4af90ecb574d",
 "TaxonKey is Phoenicopterus ruber Linnaeus, 1758",
 "Year 2010-2024"
 ]
}

 The dataset includes 1586 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010716-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.7tee73
title: Occurrence Download

description: A dataset containing 428 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Dactylorhiza baltica (Klinge) N.I.Orlova",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 428 records from 16 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010717-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.18712/nsd-nsd0362-v1
title: Childrens Families 1996

description: The survey "Childrens Families 1996" covers a nationally representative sample of children aged 4, 10, and 16 at the time of the interview. The total sample includes just over 3,000 children. The survey maps family patterns at the child's birth and throughout their upbringing. The sampling and data collection were conducted by Statistics Norway, and the project was led by An-Magritt Jensen. The statistical unit is the child, but the information was provided by an adult in the child's household. The response rate was 71.3%. The documentation report notes no sample bias in terms of gender and region, but there is some underrepresentation of 16-year-olds compared to 4- and 10-year-olds (Vaage 1996).
DOI: 10.5281/zenodo.14004108
title: IODP Expedition 353 Section summary

description: Report includes data for individual core sections: coring/drilling depths and recovery, database identifiers for the whole section and section halves, and number of samples taken from the section before and after splitting.
DOI: 10.5281/zenodo.14004109
title: IODP Expedition 353 Section summary

description: Report includes data for individual core sections: coring/drilling depths and recovery, database identifiers for the whole section and section halves, and number of samples taken from the section before and after splitting.
DOI: 10.15468/dl.znazzt
title: Occurrence Download

description: A dataset containing 11 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is Asia",
 "TaxonKey is Paphiopedilum hangianum Perner & O.Gruss"
 ]
}

 The dataset includes 11 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010718-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.14004102
title: IODP Expedition 353 Sample report

description: Report includes detailed information about samples taken for testing: location/depth, type/form factor, test, request number, and database identifier.
DOI: 10.5281/zenodo.14004103
title: IODP Expedition 353 Sample report

description: Report includes detailed information about samples taken for testing: location/depth, type/form factor, test, request number, and database identifier.
DOI: 10.5281/zenodo.14004096
title: IODP Expedition 353 RGB channels (calculated from core photos)

description: Red, green, and blue pixel data were extracted from Section Half Imaging Logger (SHIL) linescan images, typically binned at 0.5 cm resolution using the central 2 cm of the image.
DOI: 10.15468/dl.x9yqvc
title: Occurrence Download

description: A dataset containing 419059 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "Geometry MULTIPOLYGON Z(((2.23977 42.67326 0,2.19994 42.6576 0,2.23153 42.64599 0,2.25625 42.66972 0,2.23977 42.67326 0)))",
 "Geometry MULTIPOLYGON Z(((2.41232 42.63364 0,2.40417 42.63345 0,2.39498 42.62991 0,2.40314 42.62359 0,2.41172 42.62928 0,2.41232 42.63364 0)))",
 "Geometry POLYGON((2.10308 42.5592,2.5076 42.5592,2.51067 42.75195,2.26501 42.74769,2.10407 42.74769,2.10308 42.5592))"
 ]
 },
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 419059 records from 817 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000062-250127115337998/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.28172396
title: An IS element-driven antisense RNA attenuates the expression of serotype 2 fimbriae and the cytotoxicity of <i>Bordetella pertussis</i>

description: Insertion sequences (IS) represent mobile genetic elements that have been shown to be associated with bacterial evolution and adaptation due to their effects on genome plasticity. In <i>Bordetella pertussis</i>, the causative agent of whooping cough, the numerous IS elements induce genomic rearrangements and contribute to the diversity of the global <i>B. pertussis</i> population. Previously, we have shown that the majority of IS-specific endogenous promoters induce the synthesis of alternative transcripts and thereby affect the transcriptional landscape of <i>B. pertussis</i>. Here, we describe the regulatory RNA Rfi2, which is transcribed from the P<sub>out</sub> promoter of the IS<i>481</i> gene <i>BP1118</i> antisense to the adjacent <i>fim2</i> gene encoding the major serotype 2 fimbrial subunit of <i>B. pertussis</i>. Among the classical bordetellae, Rfi2 is unique to <i>B. pertussis</i>, suggesting its specific role in virulence. We show that Rfi2 RNA attenuates <i>fim2</i> transcription and, consequently, the production of the Fim2 protein. Interestingly, the mutant that does not produce Rfi2 displayed significantly increased cytotoxicity towards human macrophages compared to the parental strain. This observation suggests that the Rfi2-mediated reduction in cytotoxicity represents an evolutionary adaptation of <i>B. pertussis</i> that fine-tunes its interaction with the human host. Given the immunogenicity of Fim2, we further hypothesize that Rfi2-mediated modulation of Fim2 production contributes to immune evasion. To our knowledge, Rfi2 represents the first functionally characterized IS element-driven antisense RNA that modulates the expression of a virulence gene.
DOI: 10.6084/m9.figshare.28172396.v1
title: An IS element-driven antisense RNA attenuates the expression of serotype 2 fimbriae and the cytotoxicity of <i>Bordetella pertussis</i>

description: Insertion sequences (IS) represent mobile genetic elements that have been shown to be associated with bacterial evolution and adaptation due to their effects on genome plasticity. In <i>Bordetella pertussis</i>, the causative agent of whooping cough, the numerous IS elements induce genomic rearrangements and contribute to the diversity of the global <i>B. pertussis</i> population. Previously, we have shown that the majority of IS-specific endogenous promoters induce the synthesis of alternative transcripts and thereby affect the transcriptional landscape of <i>B. pertussis</i>. Here, we describe the regulatory RNA Rfi2, which is transcribed from the P<sub>out</sub> promoter of the IS<i>481</i> gene <i>BP1118</i> antisense to the adjacent <i>fim2</i> gene encoding the major serotype 2 fimbrial subunit of <i>B. pertussis</i>. Among the classical bordetellae, Rfi2 is unique to <i>B. pertussis</i>, suggesting its specific role in virulence. We show that Rfi2 RNA attenuates <i>fim2</i> transcription and, consequently, the production of the Fim2 protein. Interestingly, the mutant that does not produce Rfi2 displayed significantly increased cytotoxicity towards human macrophages compared to the parental strain. This observation suggests that the Rfi2-mediated reduction in cytotoxicity represents an evolutionary adaptation of <i>B. pertussis</i> that fine-tunes its interaction with the human host. Given the immunogenicity of Fim2, we further hypothesize that Rfi2-mediated modulation of Fim2 production contributes to immune evasion. To our knowledge, Rfi2 represents the first functionally characterized IS element-driven antisense RNA that modulates the expression of a virulence gene.
DOI: 10.6084/m9.figshare.28287203
title: Historical and contemporary drivers of Amazonian stream fish community assembly

description: This dataset provides the results of an analysis examining the functional structure and diversity of Amazonian stream fish assemblages. Using null models, the study investigates the spatial variation in functional composition and trait dispersion, focusing on the influence of ecological and historical drivers, such as stream depth, substrate composition, and historical climatic stability. The findings highlight the critical role of habitat complexity, niche differentiation, and evolutionary processes in shaping fish community assembly patterns. This research contributes to understanding how historical events and ecological factors interact to influence the functional diversity of Amazonian ecosystems, with implications for biodiversity conservation and ecosystem management.
DOI: 10.15468/dl.ayrvk9
title: Occurrence Download

description: A dataset containing 4667736 species occurrences available in GBIF matching the query:
(Query is too complex. Can be viewed on the landing page)

 The dataset includes 4667736 records from 3472 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000056-250127115337998/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/m57-93q-6vj
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/nyc-9rn-ek0
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/0av-r5x-vfq
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/b5b-dw6-5z9
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/czy-azz-989
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.15468/dl.aprxut
title: Occurrence Download

description: A dataset containing 10 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Mollusca)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "Geometry POLYGON((97.5 -45,105 -45,105 -37.5,97.5 -37.5,97.5 -45))"
 ]
}

 The dataset includes 10 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032678-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/9kd-e44-dzv
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/9sf-n9t-tp0
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/wwm-sba-qpm
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/38a-mzb-mss
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/k1f-7f8-w61
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/025-nq9-fpl
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/2p8-6q1-4py
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/68j-3x1-ldn
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/qc3-t78-yp0
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.6084/m9.figshare.30390898
title: RUF project baseline and endline data set

description: The purpose of the research project was three-fold: (a) To develop Ready-to-Use Complementary Food Supplement (RUCFS) for promoting growth in children 6-23 months and Ready to Use Food Supplementary (RUFs) for use in the management of MAM in children 6-59 months (b) Trialing the acceptability of the formulated food supplements, and (c) To determine the efficacy of the formulated food supplements
DOI: 10.6084/m9.figshare.30390898.v1
title: RUF project baseline and endline data set

description: The purpose of the research project was three-fold: (a) To develop Ready-to-Use Complementary Food Supplement (RUCFS) for promoting growth in children 6-23 months and Ready to Use Food Supplementary (RUFs) for use in the management of MAM in children 6-59 months (b) Trialing the acceptability of the formulated food supplements, and (c) To determine the efficacy of the formulated food supplements
DOI: 10.3535/b8a-g1b-bbk
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/fd7-psg-5dx
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/glv-6tx-046
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/vqv-x83-412
title: Pagurus pubescens Kröyer 1838

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/z4x-573-g2x
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/2nd-4eg-096
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/5c0-d26-47b
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/rjl-esp-rzc
title: Pagurus pubescens Kröyer 1838

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/ewj-c2r-6kr
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/rw2-y8g-gk9
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/vsd-n5z-55d
title: Pagurus prideaux Leach 1815

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/5w0-96j-6bj
title: Pagurus prideaux Leach 1815

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/apk-7nb-vjy
title: Pagurus pubescens Kröyer 1838

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/f3j-tmw-8ac
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/9wa-kck-3pq
title: Pagurus prideaux Leach 1815

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/er3-h2l-cvs
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/yem-39f-pb3
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/ltc-ee0-62y
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/nsy-7j6-0e8
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/tbp-4xe-zlm
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.15468/dl.2pjnwn
title: Occurrence Download

description: A dataset containing 92 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Mammalia)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "Geometry POLYGON((-30 45,-22.5 45,-22.5 52.5,-30 52.5,-30 45))"
 ]
}

 The dataset includes 92 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032679-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/d5m-f31-1ja
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/nmq-e3l-re1
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/ey6-0ms-cpl
title: Pagurus prideaux Leach 1815

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/j0n-fjn-mzw
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/yq7-66b-ejq
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/9ak-ha8-7f9
title: Pagurus pubescens Kröyer 1838

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/yzb-p3a-ds0
title: Pagurus prideaux Leach 1815

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/1s5-3l7-361
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/zvb-2ra-g7j
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/3xd-4vc-9b0
title: Pagurus pubescens Kröyer 1838

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/m3p-bq0-yk8
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/q4t-911-w9z
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/c50-wjg-hmr
title: Pagurus prideaux Leach 1815

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/kxe-dpm-0ly
title: Pagurus alatus Fabricius 1775

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/tm0-s9z-00d
title: Pagurus bernhardus (Linnaeus 1758)

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/e7g-jrr-2c7
title: Pagurus prideaux Leach 1815

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/h7h-a3v-w6c
title: Pagurus prideaux Leach 1815

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.
DOI: 10.3535/kk6-gss-v53
title: Pagurus pubescens Kröyer 1838

description: Digital Specimen for the physical specimen hosted at Senckenberg Research Institute and Natural History Museum Frankfurt/M.