Paper Citation Record · LEDGER

A floor and a ceiling for the advancing contact angle

As of 14 August 2026, this Paper Citation Record lists 53 of 53 outbound references and 0 inbound Pith citation observations for arXiv:2608.05515.

A citation records a reference. It does not transfer a finding from one paper to another.

pith.paper-citation-record.v1
2608.05515 v1

Coverage vector

measured 53 of 53 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-08-08T11:45:57.437587Z

measured 53 of 53 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-13T06:32:02.005865+00:00

measured 0 of 0 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links

measured 0 of 1 external citation measurements

A source-named dated measurement, never combined with another source.

Source: cited_works

Reference resolution

53 of 53 outbound references displayed

verified exact0
verified fuzzy27
unresolved25
parse uncertain0
malformed identifier1
metadata mismatch0

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation 83532132-6101-48f7-b3d5-19d1453772cc · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 1

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:58.358601Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 20f9bce7-1760-4674-a470-6a01fee4d74c · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 2

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:58.343664Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 92d99e80-194a-4cc3-aeba-c60d6210a1bb · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 3

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:58.329234Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 260f47c0-8a47-41ba-acd3-e6df2d654f37 · outbound

This paper cites glycerol / mica 11 119.4 hinge FF [9]α-bromonaphth.

A floor and a ceiling for the advancing contact angle glycerol / mica 11 119.4 hinge FF [9]α-bromonaphth

Reference 4

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:58.313593Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation acaaf5ce-8695-427a-9d4b-0c40854d637d · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 5

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:58.297952Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 15227868-af22-43e0-b526-30db73d7d069 · outbound

This paper cites glycerol / cast acrylic 31 118.3 hinge FF [9] methylene iodide / nylon 41≥90 hinge TT.

A floor and a ceiling for the advancing contact angle glycerol / cast acrylic 31 118.3 hinge FF [9] methylene iodide / nylon 41≥90 hinge TT

Reference 6

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:58.282451Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 4419f9e3-38b8-4ec9-96b4-71861744be38 · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 7

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:58.265770Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation d74c6d59-cf31-4387-97dd-c0c08a4b5d1b · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 8

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:58.250285Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 51f3a6da-eb47-44c8-971d-d10c27baee4e · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 9

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:58.233765Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation de721ae6-a5a7-4f60-83a0-f7548f56cc93 · outbound

This paper cites steel 0≥80 hinge TT.

A floor and a ceiling for the advancing contact angle steel 0≥80 hinge TT

Reference 10

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:58.218078Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation d1da0e63-474e-4601-ae31-1712ae7014c1 · outbound

This paper cites glycerol / PMMA-like 56 123.3 hinge FF [8] absolute alcohol / titanium 0≥81 hinge TT.

A floor and a ceiling for the advancing contact angle glycerol / PMMA-like 56 123.3 hinge FF [8] absolute alcohol / titanium 0≥81 hinge TT

Reference 11

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:58.202867Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 60febba0-43ab-4b69-8fb9-779914896ffc · outbound

This paper cites glycerol / Teflon 93 127.3 hinge FF [8] hexadecane / PMMA 0≥76 hinge TT.

A floor and a ceiling for the advancing contact angle glycerol / Teflon 93 127.3 hinge FF [8] hexadecane / PMMA 0≥76 hinge TT

Reference 12

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:58.187298Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 043f9b36-8be3-4176-a374-f27ee65abda6 · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 13

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:58.171365Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation cef55627-6d20-46e8-b392-9d36812d4d53 · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 14

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:58.156340Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation ae06ccb3-6621-4e2b-8eb7-56bca3ec52aa · outbound

This paper cites glycerol / O 2-plasma Glaco 111 119.6 hinge FF [8] hexadecane / st.

A floor and a ceiling for the advancing contact angle glycerol / O 2-plasma Glaco 111 119.6 hinge FF [8] hexadecane / st

Reference 15

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:58.141772Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation ee93c990-33ea-42a9-b56f-ec241a31a067 · outbound

This paper cites glycerol / PF AC 6/PF AC8 120 126.3 hinge FF [8] hexadecane / titanium 0≥78 hinge TT 7 Ref.

A floor and a ceiling for the advancing contact angle glycerol / PF AC 6/PF AC8 120 126.3 hinge FF [8] hexadecane / titanium 0≥78 hinge TT 7 Ref

Reference 16

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:58.126296Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation a380f42e-8189-4c1e-aa16-da4f4c2dab4b · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 17

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:58.111114Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 7227c6e3-599a-461e-8d4c-00150e594138 · outbound

This paper cites steel 0≥75 hinge TT.

A floor and a ceiling for the advancing contact angle steel 0≥75 hinge TT

Reference 18

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:58.096303Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation a0db36e8-c37b-402d-af55-06dc97df017c · outbound

This paper cites glycerol / Glaco 145 147 hinge TT [8] freon TF / titanium 0≥72 hinge TT.

A floor and a ceiling for the advancing contact angle glycerol / Glaco 145 147 hinge TT [8] freon TF / titanium 0≥72 hinge TT

Reference 19

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:58.079606Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 1d6f5a52-51bf-4d33-bce7-1a11799a8dfd · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 20

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:58.063917Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation c0e756db-76b8-4dac-a2d2-3c2570242890 · outbound

This paper cites TF [8] hexane / aluminum 0≥71 hinge TT.

A floor and a ceiling for the advancing contact angle TF [8] hexane / aluminum 0≥71 hinge TT

Reference 21

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:58.048966Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 187335fa-d781-4300-b0de-248618bad91c · outbound

This paper cites wettable 73–93 147.5 kin.

A floor and a ceiling for the advancing contact angle wettable 73–93 147.5 kin

Reference 22

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:58.033522Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 017853c9-6d9a-4397-8fcf-9e94ff7e4601 · outbound

This paper cites wettable 73–93 148.9 kin.

A floor and a ceiling for the advancing contact angle wettable 73–93 148.9 kin

Reference 23

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:58.017984Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation b04c755b-b21c-45ee-bdae-a584e4c818a4 · outbound

This paper cites wettable 73–93 152 kin.

A floor and a ceiling for the advancing contact angle wettable 73–93 152 kin

Reference 24

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:58.003328Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 7efce844-902f-4d4a-8445-190bb0574430 · outbound

This paper cites wettable 73–93 132.7 kin.

A floor and a ceiling for the advancing contact angle wettable 73–93 132.7 kin

Reference 25

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.988572Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 36ba2e4f-a976-48a1-9028-d145fe2449bb · outbound

This paper cites wettable 73 150.3 kin.

A floor and a ceiling for the advancing contact angle wettable 73 150.3 kin

Reference 26

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.973981Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 7a18ec45-c5f3-4fe8-aec2-b2154e73be80 · outbound

This paper cites wettable 73 123.6 hinge TF [8] benzyl alcohol / PMMA 0≥74 hinge TT.

A floor and a ceiling for the advancing contact angle wettable 73 123.6 hinge TF [8] benzyl alcohol / PMMA 0≥74 hinge TT

Reference 27

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.959230Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation e2311470-fde0-4826-9dd6-6b8154962bf2 · outbound

This paper cites wettable 73 126.1 kin.

A floor and a ceiling for the advancing contact angle wettable 73 126.1 kin

Reference 28

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.944464Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 7b444424-0b24-40ab-a462-0f7f0eec3c91 · outbound

This paper cites wettable 73 112.7 hinge TF [8] benzyl alcohol / nylon 0≥77 hinge TT.

A floor and a ceiling for the advancing contact angle wettable 73 112.7 hinge TF [8] benzyl alcohol / nylon 0≥77 hinge TT

Reference 29

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.930330Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 48e03855-3be8-4749-bc0b-a78c58e1f8e1 · outbound

This paper cites steel 0 79 hinge TT.

A floor and a ceiling for the advancing contact angle steel 0 79 hinge TT

Reference 30

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.915493Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation f3b4513e-2717-43f0-ab35-3e61bd1122fc · outbound

This paper cites TF [8] diethyl phthalate / aluminum 0≥75 hinge TT.

A floor and a ceiling for the advancing contact angle TF [8] diethyl phthalate / aluminum 0≥75 hinge TT

Reference 31

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.901625Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 4a03ccb6-8eb4-4da5-8245-95211bc65e5c · outbound

This paper cites steel 0≥85 hinge TT.

A floor and a ceiling for the advancing contact angle steel 0≥85 hinge TT

Reference 32

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.887287Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 3f1fdcc8-8361-487b-abce-1728144d121e · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 33

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.873593Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 452e65bb-6c20-4fac-abaa-f9b9c0cf22bc · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 34

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.859928Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation cdb81aa9-4089-4998-82cb-cc99034af723 · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 35

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.845836Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 745bd728-6d1d-4e7c-881d-668bd3e7fcb6 · outbound

This paper cites Gelderblom, O.

A floor and a ceiling for the advancing contact angle Gelderblom, O

Reference 36

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.831798Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation d210f53a-ac96-48fc-8a41-840d38ee70fb · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 37

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.816979Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 14aa188e-6666-4d24-9ea0-a90926380ab2 · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 38

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.802537Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 381964d1-3211-42a5-aca7-b33c3f30cdb6 · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 39

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.788158Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation b0917e4b-f5e8-49e4-bd89-2ab0a1ff9c56 · outbound

This paper cites Marchand, T.

A floor and a ceiling for the advancing contact angle Marchand, T

Reference 40

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.773703Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation f971241a-b195-47af-8470-78d10561a800 · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 41

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.759425Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 5875bed4-caa3-4069-9a83-c366bb792374 · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 42

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.745703Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 019646be-5942-400c-b363-9b0a2427badf · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 43

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.731797Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 0348c877-cc3c-4e34-a404-2a4898d2db01 · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 44

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.717900Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation a45f6263-9797-4281-ba2d-a2a15730e8cc · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 45

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.703892Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 9a3084a9-4176-4a8c-8067-c590d10b5c0e · outbound

This paper cites Zhang and K.

A floor and a ceiling for the advancing contact angle Zhang and K

Reference 46

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.690105Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation d49e5b33-4040-410d-9240-adb8f8308c72 · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 47

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.676383Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation c2bcb8d3-02ce-4163-b660-935498f98e80 · outbound

This paper cites Fern´ andez-Toledano, T.

A floor and a ceiling for the advancing contact angle Fern´ andez-Toledano, T

Reference 48

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.661174Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation f615f8b7-4630-4d55-9770-7bd74433349c · outbound

This paper cites Gupta, A.

A floor and a ceiling for the advancing contact angle Gupta, A

Reference 49

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.644901Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 42f278ed-2381-4e01-b5d9-c90e77e64485 · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 50

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.630515Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 6de1c5aa-abfd-4f6d-ad81-4b1647cf77bb · outbound

This paper cites A floor and a ceiling for the advancing contact angle.

A floor and a ceiling for the advancing contact angle A floor and a ceiling for the advancing contact angle

Reference 51

Resolution: malformed identifier; raw_fallback, observed 2026-08-08T11:45:57.615565Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 88ca06cd-8a73-48e0-8764-bf44f132c213 · outbound

This paper cites Yokoi, D.

A floor and a ceiling for the advancing contact angle Yokoi, D

Reference 52

Resolution: verified fuzzy; raw_fallback, observed 2026-08-08T11:45:57.600052Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 4112a6cd-0839-4c68-bc2c-40489c003ada · outbound

This paper cites an unresolved cited work.

A floor and a ceiling for the advancing contact angle Unresolved cited work

Reference 53

Resolution: unresolved; raw_fallback, observed 2026-08-08T11:45:57.584495Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Pith citing papers

No inbound Pith citation observations are available.