Time factors of differentially preserved wood in two calcitic concretions in Pennsylvanian black shale from Indiana / Bertram G. Woodland -- and Catherine K. Richardson --.

v.33:no.10(1975)

Short structured feedback training is equivalent to a mechanical feedback device in two-rescuer BLS: a randomised simulation study.

BACKGROUND Resuscitation guidelines encourage the use of cardiopulmonary resuscitation (CPR) feedback devices implying better outcomes after sudden cardiac arrest. Whether effective continuous feedback could also be given verbally by a second rescuer ("human feedback") has not been investigated yet. We, therefore, compared the effect of human feedback to a CPR feedback device. METHODS In an open, prospective, randomised, controlled trial, we compared CPR performance of three groups of medical students in a two-rescuer scenario. Group "sCPR" was taught standard BLS without continuous feedback, serving as control. Group "mfCPR" was taught BLS with mechanical audio-visual feedback (HeartStart MRx with Q-CPR-Technology™). Group "hfCPR" was taught standard BLS with human feedback. Afterwards, 326 medical students performed two-rescuer BLS on a manikin for 8 min. CPR quality parameters, such as "effective compression ratio" (ECR: compressions with correct hand position, depth and complete decompression multiplied by flow-time fraction), and other compression, ventilation and time-related parameters were assessed for all groups. RESULTS ECR was comparable between the hfCPR and the mfCPR group (0.33 vs. 0.35, p = 0.435). The hfCPR group needed less time until starting chest compressions (2 vs. 8 s, p < 0.001) and showed fewer incorrect decompressions (26 vs. 33 %, p = 0.044). On the other hand, absolute hands-off time was higher in the hfCPR group (67 vs. 60 s, p = 0.021). CONCLUSIONS The quality of CPR with human feedback or by using a mechanical audio-visual feedback device was similar. Further studies should investigate whether extended human feedback training could further increase CPR quality at comparable costs for training.

A study of the invertebrates and fishes of salt marshes in two Oregon estuaries /

Contract no.: DACW72-77-C-0013.

The Aleut language, the elements of Aleut grammar with a dictionary in two parts containing basic vocabularies of Aleut and English,

"Aleut-English dictionary, compiled by Richard Henry Geoghegan. A vocabulary of the Aleutian or Unangan language as spoken on the eastern Aleutian Islands and on the Alaska Peninsula, being a translation of the Russian, 'Slovarʹ aleutsko-lisʹevskago yazyka' or 'Dictionary of the Aleut-Fox language', by Ivan Veniaminov, 1834, with additions and annotations by the compiler": p. 89-124.

My life in two worlds.

Mode of access: Internet.

The constitutional history of England : since the accession of George Third, 1760-1860: in two volumes. /

On spine: Library edition.

The suitor unsuited : an original comedy, in two acts.

Mode of access: Internet.

A plea for the supremacy of Christ as the king and head of his own church in two sermons, preached in the Presbyterian Church, (Old School) Madison, Wis., March 18, 1860 /

These sermons are a response to the exclusion of slaveowners from communion. The author states why he opposes this practice and interprets New Testament passages on slavery.

Our country aunt; or, Aunt Jerusha's visit. A domestic drama, in two acts ...

Mode of access: Internet.

Newman; an appreciation in two lectures:

Mode of access: Internet.

Transportation services, utilization and needs of the elderly in non-urban areas: patterns in two Kentucky communities. Final report.

Federal Transit Administration, Washington, D.C.

Judaism and its history, in two parts.

Mode of access: Internet.

The complete bread, cake, and cracker baker : in two parts.

Publisher's advertisements at end.

A holy, sacred, and divine roll and book from the Lord God of Heaven, to the inhabitants of earth : revealed in the United Society at New Lebanon, County of Columbia, State of New-York, United States of America : read and understand all ye in mortal clay : in two parts /

Part I: vii, 222, [4] p.; part II: [4], 223-402, [4] p.