Results 251 to 260 of about 10,606,980 (298)

TROPHOBLAST SAMPLES SUITABLE FOR LONG‐TERM CULTURE

Acta Obstetricia et Gynecologica Scandinavica, 1985
Abstract. Chorionic villi were obtained by a direct vision technique. Villi without vessels (38 cases) failed to grow in vitro, irrespective of the amount of tissue. Vascular villi with an estimated weight exceeding 5 mg (71 cases) grew in vitro—with two exceptions.
B, Gustavii, H, Edvall, A, Mineur, S, Heim, N, Mandahl, U, Kristoffersson, F, Mitelman   +6 more
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Cotton Dust Sampling: I Short Termed Sampling

American Industrial Hygiene Association Journal, 1975
A short term sampler for cotton dust is introduced which, when used in conjunction with a correctly designed vertical elutriator, gives equivalent results to the Lumsden-Lynch vertical elutriator. The short termed sampler not only offers results which can be applied to the ACGIH TLV but offers an effective means of environmental surveillance in a ...
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Dynamical sampling with an additive forcing term

2015 International Conference on Sampling Theory and Applications (SampTA), 2015
In this paper we discuss a system of dynamical sampling, i.e. sampling a signal x that evolves in time under the action of an evolution operator A. We examine the timespace sampling that allows for reconstruction of x. Here we describe the possible reconstruction systems when the system also contains an unknown constant forcing term σ.
Akram Aldroubi, Keri Kornelson
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Sampling Terms of Reference

1990
Two aspects of a sample design that seem crucial in deciding whether specialized statistical expertise will be required to make the design work are: (1) frame versus nonframe sampling and (2) random versus patterned sampling. These terms are illustrated and some subcategories are suggested.
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Long-term blood sampling technique in the marmoset

Laboratory Animals, 1988
A simple and reliable method for long-term blood sampling from the restrained marmoset is described. Cannulae were chronically inserted into the internal jugular vein, exteriorized and housed in a backpack system. The cannulae remained patent for 1-7 months.
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Long-term storage of tissue samples for cell culture

In Vitro, 1978
The establishment of cultured cell lines from skin biopsies stored at -196 degrees C for periods up to 1 year has been investigated. Attempts to initiate cell cultures from the frozen tissue samples were uniformly successful. There was no alteration in chromosome constitution, morphological appearance, or specific activities of lysosomal enzymes in ...
H A, Taylor, S E, Riley, S E, Parks, R E, Stevenson   +3 more
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The Extreme Terms of a Sample and Their Role in the Sum of Independent Variables

Theory of Probability & Its Applications, 1960
Let $(1)\qquad x_1 ,x_2 , \cdots ,x_n $ be independent random variables, whose distribution function $F(x)$ (the same for all $x_i $) satisfies the conditions of regularity of growth for $|x| \to \infty $: \[ \mathop {\lim }\limits_{x \to \infty } \frac{{\chi (kx)}}{{\chi (x)}} = \frac{1}{{k^\alpha }},\qquad 0 \leqq \alpha \leqq + \infty , \]\[ \mathop
Arov, D. Z., Bobrov, A. A.
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The Distribution of the Maximum Term in a Sequence of Sample Means

Theory of Probability & Its Applications, 1988
See the review in Zbl 0622.60031.
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QTc interval in a sample of long-term schizophrenia inpatients

Schizophrenia Research, 2010
This naturalistic study attempted to determine the prevalence of prolonged QTc interval in a relatively large population of inpatients hospitalized with chronic schizophrenia, and to explore QTc relationship with demographic variables, metabolic parameters and prescribed treatments.
Ramos-Ríos, Ramón, Arrojo-Romero, Manuel, Paz-Silva, Eduardo, Carballal-Calvo, Fernando, Bouzón-Barreiro, José L, Seoane-Prado, Jorge, Codesido-Barcala, Rosario, Crespí-Armenteros, Alicia, Fernández-Pérez, Ramón, López-Moríñigo, Javier D, Tortajada-Bonaselt, Ignacio, Diaz, Francisco J, de Leon, Jose   +12 more
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Cardiovascular biomarkers in paired maternal and umbilical cord blood samples at term and near term delivery

Early Human Development, 2016
Cardiovascular biomarkers might help to identify fetuses or pregnancies at risk.To examine the umbilical cord neonatal and maternal levels of cardiovascular biomarkers at the time of delivery, and to correlate maternal and fetal biomarker levels to each other, to gestational age and to delivery mode.In a prospective, observational, cross-sectional ...
Martin E, Blohm, Florian, Arndt, Jan, Sandig, Werner, Diehl, Tanja, Zeller, Goetz C, Mueller, Claudia, Schlesner, Thomas S, Mir, Stefan, Blankenberg, Kurt, Hecher, Dominique, Singer, Jochen, Weil   +11 more
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