Results 331 to 340 of about 19,641,486 (386)

VACTERL as primary, polytopic developmental field defects

American Journal of Medical Genetics, 1999
Previously we proposed that the VACTERL association represents a dysmorphogenetic response of the primary developmental field, i.e., polytopic developmental field defects (DFD). As such, it should conform to the essential attributes of a DFD, namely, heterogeneity, homology, and phylogeneity.
Jaime L. Frias, María Luisa Martínez-Frías   +1 more
openaire   +3 more sources

Calibration. Primary—Secondary—Field

The Journal of the Acoustical Society of America, 1997
The primary calibration of acoustic and vibration transducers are well standardized and confirmed by a round-robin inter-laboratory test. Secondary calibration is also very common with traceability to primary calibration. Examples of setups for microphone and accelerometer secondary calibration are discussed regarding accuracy, frequency response ...
openaire   +2 more sources

Field Estimates of Primary Production

1978
From field studies, the production of the current blanket bog vegetation is estimated, with an assessment of the main factors causing variation in production.
R. A. H. Smith, G. I. Forrest
openaire   +2 more sources

A comprehensive review of the development of magnesium anodes for primary batteries

Journal of Materials Chemistry A, 2021
A comprehensive review of the development of magnesium anodes for primary batteries. Excellent guidance for both beginners and veterans in this field.
Xingrui Chen, X. Liu, Q. Le, Mingxing Zhang, Ming Liu, A. Atrens   +5 more
semanticscholar   +1 more source

A technique for field matching in primary breast irradiation

International Journal of Radiation Oncology*Biology*Physics, 1983
The intrinsic divergence of photon beams presents serious matching problems in three-field treatment of the breast and the adjoining supraclavicular area. A method is presented in which appropriate beam blocking combined with suitable isocentric rotation of the treatment couch neutralize the affects of divergence so that proper matching is achieved at ...
Allen S. Lichter, Benedick A. Fraass, Thomas N. Padikal, Jan van de Geijn   +3 more
openaire   +3 more sources

Primary Aldosteronism: A Field on the Move

2016
Primary aldosteronism is the most common form of secondary hypertension, and is highly prevalent in patients with resistant hypertension. The diagnosis of primary aldosteronism in real life is time consuming and might be tricky. The screening for primary aldosteronism (whom to screen and how to screen), the confirmation of the diagnosis (four tests are
Stella Douma, Michael Doumas
openaire   +2 more sources

Primary wound healing in the septic field

The American Journal of Surgery, 1968
Abstract 1. 1. Attention is directed to the apparent low incidence of wound infection after the emergency thoracotomy for cardiac massage is carried out under septic conditions. In the hope of learning some reason for this a group of fifty-four such patients was evaluated, showing the procedure to result in three infections (5.5 per cent). 2.
openaire   +3 more sources

Visual field loss in primary congenital glaucoma

Journal of American Association for Pediatric Ophthalmology and Strabismus, 2015
To assess the visual field defects in primary congenital glaucoma (PCG) and to identify associated risk factors.In this cross-sectional study visual fields of consecutive PCG patients were examined using Humphery Field Analyzer (HFA) or Goldmann visual field (GVF).
Bharat Patil, Neeraj Gupta, Gautam Sinha, Reetika Sharma, Ramanjit Sihota, Bhagabat Nayak, Viney Gupta, Ajay Sharma   +7 more
openaire   +3 more sources

Primary Care: A Special Field

1978
The level of primary professional care is a key to medical care as a whole. Not only is it a key but it controls the quality and the quantity of care at the other levels of care. Placed as it is between self-care by individuals and families and specialist care based on expensive modern technologies, it acts as a dominant influence on the use of ...
openaire   +2 more sources

A FIELD TEST OF PRIMARY TRIANGULATION THEODOLITES

Canadian Journal of Research, 1934
A form of test of the accuracy of precision theodolites is described in which angles were measured out of doors at night with different instruments, the targets being small lights placed at about two miles from the observing station. Probable errors computed from the observations were the basis of comparison and it is shown how these were derived and ...
openaire   +2 more sources