cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.sctx8x
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "VerbatimScientificName is Cinnyris prigoginei",
 "BasisOfRecord is one of (Machine Observation, Human Observation)",
 "Year 2011-2021",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen, Specimen, Material citation, Material sample)"
 ]
 }
 }
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0066854-230530130749713/datasets/export for details.
DOI: 10.15468/dl.budqry
title: Occurrence Download

description: A dataset containing 296955 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Empetrum nigrum L., Eragrostis virescens J.Presl, Gentianella ramosa (Hegetschw.) Holub, Helianthemum apenninum (L.) Mill.)",
 "Geometry POLYGON((-9.36035 44.71551,-10.59082 42.81152,-11.82129 36.80928,-7.69043 36.17336,-3.38379 35.88905,3.12012 38.13456,9.18457 38.20366,11.7334 37.16032,12.78809 34.74161,17.09473 33.79741, 23.15918 34.23451,30.10254 32.62087,33.2666 32.99024,35.72754 35.03,33.00293 35.53223,28.69629 35.17381,28.34473 36.31513,25.7959 37.50973,24.91699 39.90974,28.78418 40.6473,30.71777 41.17865,36.87012 45.213,38.18848 46.98025,38.71582 47.7541,39.94629 47.93107,40.20996 49.61071,37.0459 50.34546,35.72754 50.40152,33.79395 52.26816,31.68457 51.94426,31.4209 53.27835,32.56348 53.43572,30.98145 54.77535,30.89355 55.52863,28.43262 56.02295,27.20215 57.65716,27.37793 58.30949,27.90527 59.17593,29.66309 59.88894,27.6416 60.58697,31.50879 62.75473,28.78418 69.83962,30.89355 70.28912,29.22363 71.55274,21.75293 71.30079,14.28223 70.14036,11.38184 67.47492,4.87793 63.66576,-5.53711 71.52491,-10.63477 71.69129,-21.5332 67.74276,-28.56445 65.36684,-24.3457 61.35461,-9.36035 44.71551))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "Year is less than or equal to 2021"
 ]
}

 The dataset includes 296955 records from 363 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0161746-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-48526
title: Redemption tidings, vol. 27, nos. 1-26, 5 Jan. - 21 Dec. 1951

description: [description english/roman)] Issued fortnightly (every two weeks). "A full gospel magazine for all believers" -- subtitle. Includes We hold the lines in each issue (5 Jan. - 16 Feb., 16 Mar. - 27 Apr., 8 June, 6 July - 31 Aug., 28 Sept. - 21 Dec. 1956) except vol. 27 nos. 5, 10-11, 13 & 19. Bound with vol. 26.
DOI: 10.15468/dl.bsznp6
title: Occurrence Download

description: A dataset containing 117 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Aconitum alboviolaceum Kom.",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 117 records from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0255921-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.c8ad99
title: Occurrence Download

description: A dataset listing the 60601 species recorded in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "Geometry POLYGON((100.31329 -14.91111,156.49593 -14.91111,156.49593 7.58889,100.31329 7.58889,100.31329 -14.91111))",
 "Geometry POLYGON((108.19538 -0.22671,114.13646 -0.22671,114.13646 2.5977,108.19538 2.5977,108.19538 -0.22671))",
 "Geometry POLYGON((109.66621 -3.77216,115.24517 -4.49916,117.28913 -4.0664,119.2137 1.11806,118.49185 2.32229,119.31588 5.6089,117.61699 7.9934,112.98741 5.29251,107.43681 1.93046,109.66621 -3.77216))"
 ]
 },
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Insecta"
 ]
}

 The dataset's 60601 records were derived from 692 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0062819-230530130749713/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5st4w9
title: Occurrence Download

description: A dataset containing 42802 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Stevia Cav."
 ]
}

 The dataset includes 42802 records from 412 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0203936-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-50423
title: Redemption tidings, vol. 29, nos. 1-26, 2 Jan. - 18 Dec. 1953

description: [description english/roman)] Issued fortnightly (every two weeks). "A full gospel magazine" -- subtitle.
DOI: 10.15468/dl.b9butb
title: Occurrence Download

description: A dataset containing 602 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "BasisOfRecord is Human Observation",
 "BasisOfRecord is Specimen"
 ]
 },
 "Geometry POLYGON((99.02177 9.63529,159.80047 9.63529,159.80047 55.59634,99.02177 55.59634,99.02177 9.63529))",
 "HasGeospatialIssue is false",
 "TaxonKey is Cercidiphyllaceae",
 "Year 1900-1990"
 ]
}

 The dataset includes 602 records from 41 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0386545-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25574/05393
title: Chandra X-ray Observatory ObsId 05393

description: The puzzle of X-ray emission from magnetic stars without convective envelopes
DOI: 10.6084/m9.figshare.30447074
title: <b>Revisiting the health spending-growth nexus</b>

description: This repository contains the data and replication materials for the study entitled “Revisiting the health spending-growth nexus”.
DOI: 10.6084/m9.figshare.30447074.v2
title: <b>Revisiting the health spending-growth nexus</b>

description: This repository contains the data and replication materials for the study entitled “Revisiting the health spending-growth nexus”.
DOI: 10.15468/b9hjk9
title: Dysosma xishuiensis (Berberidaceae), a new species from Guizhou, China, based on morphological and molecular evidence

description: This dataset contains the digitized treatments in Plazi based on the original journal article Huang, Lang, Yao, Wei-Hao, Yang, Yan-Bing, An, Ming-Tai, Yu, Yuan-Lin, Zhou, Mei, Li, He (2025): Dysosma xishuiensis (Berberidaceae), a new species from Guizhou, China, based on morphological and molecular evidence. PhytoKeys 268: 59-67, DOI: 10.3897/phytokeys.268.152287AbstractDysosma xishuiensis Y. B. Yang, M. T. An & C. H. Yang is described and illustrated as a new species from Xishui County in northern Guizhou Province, China. This species is morphologically similar to D. versipellis, but differs by its glabrous abaxial leaf surface, pedicels, and sepals; inflorescences bearing more flowers (8–20 vs. 5–8); larger obovate – oblong petals (2.8–3.4 × 1.5–2.0 cm vs. 2.5 × 0.8 cm); and an obpyriform ovary (vs. ellipsoid). The phylogenetic relationships reconstructed using ITS, matK, and rbcL sequences further confirm that it is a new species within Dysosma. This species is currently known only from the Xishui National Nature Reserve in Guizhou. According to IUCN criteria (B 2, D), due to its limited distribution and low population numbers, D. xishuiensis is assessed as Endangered (EN).
DOI: 10.25574/05394
title: Chandra X-ray Observatory ObsId 05394

description: The puzzle of X-ray emission from magnetic stars without convective envelopes
DOI: 10.25574/05402
title: Chandra X-ray Observatory ObsId 05402

description: Simultaneous X-ray and Radio Monitoring of YSO Activity in the Coronet Cluster
DOI: 10.25574/05403
title: Chandra X-ray Observatory ObsId 05403

description: Simultaneous X-ray and Radio Monitoring of YSO Activity in the Coronet Cluster
DOI: 10.15468/dl.crrmus
title: Occurrence Download

description: A dataset containing 154456 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Machine Observation, Specimen)",
 "OccurrenceStatus is Present",
 "TaxonKey is Chelonia mydas"
 ]
}

 The dataset includes 154456 records from 258 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0054991-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25574/05404
title: Chandra X-ray Observatory ObsId 05404

description: Simultaneous X-ray and Radio Monitoring of YSO Activity in the Coronet Cluster
DOI: 10.25574/05405
title: Chandra X-ray Observatory ObsId 05405

description: Simultaneous X-ray and Radio Monitoring of YSO Activity in the Coronet Cluster
DOI: 10.25574/05406
title: Chandra X-ray Observatory ObsId 05406

description: Simultaneous X-ray and Radio Monitoring of YSO Activity in the Coronet Cluster
DOI: 10.5281/zenodo.17954373
title: Syntheverse Expeditions: Explorations of the Hydrogen-Holographic Fractal Universe

description: This repository serves as the official collection of Syntheverse Expeditions, documenting empirical studies, in-silico modeling, and theoretical explorations of the hydrogen-holographic fractal universe. Each expedition investigates complex systems, consciousness, and the Awarenessverse, providing predictions, findings, and reproducible analyses using publicly available datasets and validated computational methods.

The first entry, “The Awarenessverse: Empirical Modeling and Predictions of Awareness as the Ultimate Energy”, explores awareness as the fundamental energy underlying all existence, validating emergent patterns, fractal self-similarity, and homeostatic constraints in complex systems. This repository will continuously expand as new Syntheverse Expeditions are conducted, providing open-access, peer-review-aligned research outputs for the scientific and generative awareness community.

Keywords: Syntheverse, Hydrogen-Holographic Fractals, Awarenessverse, Complex Systems, In-Silico Modeling, Empirical Validation, Open Science, FractiAI
DOI: 10.25574/05407
title: Chandra X-ray Observatory ObsId 05407

description: h and Chi Per: The Loudest Sources?
DOI: 10.25574/05408
title: Chandra X-ray Observatory ObsId 05408

description: h and Chi Per: The Loudest Sources?
DOI: 10.25740/kp523dt7562
title: Menzel, Florian; Fiocca, Katherine; Steiner, Erik; Gordon, Deborah M.2025. Cuticular hydrocarbons and collective response to water stress in a desert ant. Functional Ecology

description: 1. With the accelerating pace of climate change, we urgently need to understand how
 physiological traits shape behavioural plasticity in response to environmental stress.
 In social insects, collective behaviour operates without central control but through
 interactions among individual participants. In the aggregate, this produces a
collective response to environmental conditions.
2. Here we consider how variation among desert ant colonies in the cuticular
 hydrocarbons that prevent water loss is associated with variation among colonies in
the collective behaviour that manages water stress. Colonies of the desert ant,
 Pogonomyrmex barbatus, differ in the collective regulation of foraging activity to
 manage water loss to evaporation while foraging. Foraging is regulated through
olfactory interactions between outgoing and returning foragers, which determine a
 forager's decision whether to leave the nest on the next trip. Some colonies are risk-
 averse, with foragers less likely to make foraging trips in dry conditions, while others
 are risk-tolerant, with foragers who do not reduce foraging trips in dry conditions.
 3. We found that behavioural differences among colonies are associated with the
 capacity of their foragers' cuticular hydrocarbons to prevent water loss. In risk-averse
 colonies whose foragers make fewer trips in dry conditions, the abundance of
 alkenes was significantly higher. High abundance of alkenes, with a low melting point,
 makes the CHC layer more permeable, increasing susceptibility to water loss. In one
 of two years of this study, we found that workers in risk-averse colonies also had
 significantly shorter n-alkanes, which further enhance water permeability of the CHC
 layer and thus desiccation risk.
 4. To our knowledge, this is the first report of variation among conspecific colonies in
 CHC profile that is linked to colony differences in collective behaviour.
DOI: 10.25574/05411
title: Chandra X-ray Observatory ObsId 05411

description: A Rich Population of Massive Young Stars in the Cluster Westerlund 1
DOI: 10.25574/05412
title: Chandra X-ray Observatory ObsId 05412

description: Resolving the Puzzle of Hybrid Star Coronal X-rays
DOI: 10.25574/05413
title: Chandra X-ray Observatory ObsId 05413

description: Resolving the Puzzle of Hybrid Star Coronal X-rays
DOI: 10.25574/05414
title: Chandra X-ray Observatory ObsId 05414

description: Resolving the Puzzle of Hybrid Star Coronal X-rays
DOI: 10.25574/05415
title: Chandra X-ray Observatory ObsId 05415

description: Untangling the Accretion Spots on Classical T Tauri Stars
DOI: 10.25574/05416
title: Chandra X-ray Observatory ObsId 05416

description: Untangling the Accretion Spots on Classical T Tauri Stars
DOI: 10.25574/05417
title: Chandra X-ray Observatory ObsId 05417

description: Untangling the Accretion Spots on Classical T Tauri Stars
DOI: 10.25574/05418
title: Chandra X-ray Observatory ObsId 05418

description: Untangling the Accretion Spots on Classical T Tauri Stars
DOI: 10.25574/05421
title: Chandra X-ray Observatory ObsId 05421

description: A MINI-SURVEY OF MAGNETIC ACTIVITY IN L AND T BROWN DWARFS
DOI: 10.5517/ccdc.csd.cc1zyzxt
title: CCDC 1846078: Experimental Crystal Structure Determination

description: Related Article: Anthony Blue Carter, Jonas Braun, Tilmann Bodenstein, Rouven Felix Pfleger, Michael Schulze, Thomas Kriese, Sebastian F. M. Habermann, Dan Liu, Abdullah A. Al-Kahtani, Eufemio Moreno-Pineda, Christopher E. Anson, Wolfgang Wernsdorfer, Liviu F. Chibotaru, Karin Fink, Annie Powell|2024|ChemRxiv|||doi:10.26434/chemrxiv-2024-6516j
description: Related Article: Anthony B. Carter, Jonas Braun, Tilmann Bodenstein, Rouven F. Pfleger, Michael Schulze, Thomas Kriese, Sebastian F. M. Habermann, Dan Liu, Abdullah A. Al-Kahtani, Eufemio Moreno-Pineda, Christopher E. Anson, Wolfgang Wernsdorfer, Liviu F. Chibotaru, Karin Fink, Annie K. Powell|2025|Inorg.Chem.|||doi:10.1021/acs.inorgchem.5c04406
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc1zyzyv
title: CCDC 1846079: Experimental Crystal Structure Determination

description: Related Article: Anthony Blue Carter, Jonas Braun, Tilmann Bodenstein, Rouven Felix Pfleger, Michael Schulze, Thomas Kriese, Sebastian F. M. Habermann, Dan Liu, Abdullah A. Al-Kahtani, Eufemio Moreno-Pineda, Christopher E. Anson, Wolfgang Wernsdorfer, Liviu F. Chibotaru, Karin Fink, Annie Powell|2024|ChemRxiv|||doi:10.26434/chemrxiv-2024-6516j
description: Related Article: Anthony B. Carter, Jonas Braun, Tilmann Bodenstein, Rouven F. Pfleger, Michael Schulze, Thomas Kriese, Sebastian F. M. Habermann, Dan Liu, Abdullah A. Al-Kahtani, Eufemio Moreno-Pineda, Christopher E. Anson, Wolfgang Wernsdorfer, Liviu F. Chibotaru, Karin Fink, Annie K. Powell|2025|Inorg.Chem.|||doi:10.1021/acs.inorgchem.5c04406
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc20wxpj
title: CCDC 1873878: Experimental Crystal Structure Determination

description: Related Article: Anthony Blue Carter, Jonas Braun, Tilmann Bodenstein, Rouven Felix Pfleger, Michael Schulze, Thomas Kriese, Sebastian F. M. Habermann, Dan Liu, Abdullah A. Al-Kahtani, Eufemio Moreno-Pineda, Christopher E. Anson, Wolfgang Wernsdorfer, Liviu F. Chibotaru, Karin Fink, Annie Powell|2024|ChemRxiv|||doi:10.26434/chemrxiv-2024-6516j
description: Related Article: Anthony B. Carter, Jonas Braun, Tilmann Bodenstein, Rouven F. Pfleger, Michael Schulze, Thomas Kriese, Sebastian F. M. Habermann, Dan Liu, Abdullah A. Al-Kahtani, Eufemio Moreno-Pineda, Christopher E. Anson, Wolfgang Wernsdorfer, Liviu F. Chibotaru, Karin Fink, Annie K. Powell|2025|Inorg.Chem.|||doi:10.1021/acs.inorgchem.5c04406
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.25574/05424
title: Chandra X-ray Observatory ObsId 05424

description: The power within the PacMan Nebula: Triggered Star Formation in NGC 281
DOI: 10.5281/zenodo.17954324
title: LINF_300018500

description: Vps41/Vps8-like protein; Leishmania infantum (strain JPCM5)
DOI: 10.5281/zenodo.17954325
title: LINF_300018500

description: Vps41/Vps8-like protein; Leishmania infantum (strain JPCM5)
DOI: 10.25574/05425
title: Chandra X-ray Observatory ObsId 05425

description: How Do T Tauri Stars Generate X-rays?
DOI: 10.25574/05426
title: Chandra X-ray Observatory ObsId 05426

description: How Do T Tauri Stars Generate X-rays?
DOI: 10.5517/ccdc.csd.cc2p1w0n
title: CSD 2474451: Experimental Crystal Structure Determination

description: Related Article: Hua-Xun Li, Liang-Wen Ji, Jia-Yi Lu, Yi-Qiang Lin, Chang-Chao Liu, Baizhuo Li, Jiyong Liu, Cao Wang, Yi Liu, Yunhao Lu, Yu-Ke Li, Hao Jiang, Yun-Lei Sun, Guang-Han Cao|2025|J.Am.Chem.Soc.|||doi:10.1021/jacs.5c15165
description: An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the joint CCDC and FIZ Karlsruhe Access Structures service and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.25505/fiz.icsd.cc2k28zx
title: CSD 2355689: Experimental Crystal Structure Determination

description: Related Article: Vaishali Taneja, Shantanu Semwal, Debattam Sarkar, Abdul Ahad, Monika Bhakar, Moinak Dutta, Diptikanta Swain, Goutam Sheet, Koushik Pal, Umesh V. Waghmare, Kanishka Biswas|2025|J.Am.Chem.Soc.|||doi:10.1021/jacs.5c18637
description: An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the joint CCDC and FIZ Karlsruhe Access Structures service and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.25574/05427
title: Chandra X-ray Observatory ObsId 05427

description: Planet-Induced Activity Enhancements in the HD 179949 System
DOI: 10.15468/dl.vctux6
title: Occurrence Download

description: A dataset containing 383 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((-61.144123 -32.595307, -61.227446 -32.60083, -61.308747 -32.617265, -61.386052 -32.644213, -61.45748 -32.68102, -61.521285 -32.726791, -61.575902 -32.78041, -61.619982 -32.840572, -61.652426 -32.905805, -61.672413 -32.974513, -61.679424 -33.04501, -61.673256 -33.115562, -61.654029 -33.18443, -61.622189 -33.249914, -61.578496 -33.310391, -61.524012 -33.364361, -61.460074 -33.410481, -61.388259 -33.447603, -61.31035 -33.474802, -61.228288 -33.491398, -61.144123 -33.496977, -61.059958 -33.491398, -60.977896 -33.474802, -60.899987 -33.447603, -60.828172 -33.410481, -60.764234 -33.364361, -60.70975 -33.310391, -60.666057 -33.249914, -60.634217 -33.18443, -60.61499 -33.115562, -60.608822 -33.04501, -60.615833 -32.974513, -60.63582 -32.905805, -60.668264 -32.840572, -60.712344 -32.78041, -60.766961 -32.726791, -60.830766 -32.68102, -60.902194 -32.644213, -60.979499 -32.617265, -61.0608 -32.60083, -61.144123 -32.595307))"},{"type":"equals","key":"CLASS_KEY","value":"212","matchCase":false},{"type":"greaterThanOrEquals","key":"YEAR","value":"2015","matchCase":false},{"type":"not","predicate":{"type":"in","key":"BASIS_OF_RECORD","values":["MATERIAL_CITATION","MATERIAL_SAMPLE","PRESERVED_SPECIMEN"],"matchCase":false}},{"type":"lessThanOrEquals","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"equals","key":"LICENSE","value":"CC BY 4.0","matchCase":false}]}

 The dataset includes 383 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0055003-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25574/05428
title: Chandra X-ray Observatory ObsId 05428

description: Multi-Wavelength Signatures of Magnetic Activity in the Star-Forming Region around LkHa101
DOI: 10.25574/05429
title: Chandra X-ray Observatory ObsId 05429

description: Multi-Wavelength Signatures of Magnetic Activity in the Star-Forming Region around LkHa101
DOI: 10.25574/05434
title: Chandra X-ray Observatory ObsId 05434

description: Sensitive X-ray surveys of the nearby globular clusters NGC 6544, NGC 6838 (M71), and NGC 6656 (M22)
DOI: 10.25574/05435
title: Chandra X-ray Observatory ObsId 05435

description: A Uniform Study of Globular Cluster X-ray Sources: the Keys to Cluster Dynamical Evolution
DOI: 10.25574/05436
title: Chandra X-ray Observatory ObsId 05436

description: A Uniform Study of Globular Cluster X-ray Sources: the Keys to Cluster Dynamical Evolution
DOI: 10.25574/05437
title: Chandra X-ray Observatory ObsId 05437

description: A Uniform Study of Globular Cluster X-ray Sources: the Keys to Cluster Dynamical Evolution