scholarly journals Single-field slice-imaging with a movable repeller: Photodissociation of N2O from a hot nozzle

2014 ◽  
Vol 141 (5) ◽  
pp. 054201 ◽  
Author(s):  
Dan J. Harding ◽  
J. Neugebohren ◽  
M. Grütter ◽  
A. F. Schmidt-May ◽  
D. J. Auerbach ◽  
...  
Keyword(s):  
Single Field ◽  
Slice Imaging

Slice imaging and velocity mapping using a single field

2006 ◽  
Vol 77 (8) ◽  
pp. 083101 ◽  
Author(s):  
Vassilios Papadakis ◽  
Theofanis N. Kitsopoulos
Keyword(s):  
Velocity Mapping ◽  
Single Field ◽  
Slice Imaging

Experiments in Bright-Field Imaging with Hollow-Cone Illumination

1981 ◽  
Vol 39 ◽  
pp. 226-227
Author(s):  
W. Kunath ◽  
K. Weiss ◽  
E. Zeitler
Keyword(s):  
Signal To Noise Ratio ◽  
Carbon Support ◽  
Electronic System ◽  
Optic Axis ◽  
Hollow Cone ◽  
Signal To Noise ◽  
Bright Field ◽  
Noise Ratio ◽  
Single Field ◽  
Field Imaging

Bright-field images taken with axial illumination show spurious high contrast patterns which obscure details smaller than 15 ° Hollow-cone illumination (HCI), however, reduces this disturbing granulation by statistical superposition and thus improves the signal-to-noise ratio. In this presentation we report on experiments aimed at selecting the proper amount of tilt and defocus for improvement of the signal-to-noise ratio by means of direct observation of the electron images on a TV monitor.Hollow-cone illumination is implemented in our microscope (single field condenser objective, Cs = .5 mm) by an electronic system which rotates the tilted beam about the optic axis. At low rates of revolution (one turn per second or so) a circular motion of the usual granulation in the image of a carbon support film can be observed on the TV monitor. The size of the granular structures and the radius of their orbits depend on both the conical tilt and defocus.

Connecting Gospels

2018 ◽  
Keyword(s):  
Second Century ◽  
Common Belief ◽  
Field Of Study ◽  
Early Christian ◽  
Single Field ◽  
Vantage Points ◽  
Canonical Texts ◽  
Normative Status ◽  
Two Bodies ◽  
Shed Light

By the late second century, early Christian gospels had been divided into two groups by a canonical boundary that assigned normative status to four of them while consigning their competitors to the margins. The project of this volume is to find ways to reconnect these divided texts. The primary aim is not to address the question whether the canonical/non-canonical distinction reflects substantive and objectively verifiable differences between the two bodies of texts—although that issue may arise at various points. Starting from the assumption that, in spite of their differences, all early gospels express a common belief in the absolute significance of Jesus and his earthly career, the intention is to make their interconnectedness fruitful for interpretation. The approach taken is thematic and comparative: a selected theme or topic is traced across two or more gospels on either side of the canonical boundary, and the resulting convergences and divergences shed light not least on the canonical texts themselves as they are read from new and unfamiliar vantage points. The outcome is to demonstrate that early gospel literature can be regarded as a single field of study, in contrast to the overwhelming predominance of the canonical four characteristic of traditional gospels scholarship.

Variation in Soybean Aphid (Hemiptera: Aphididae) Biotypes Within Fields

2021 ◽  
Author(s):  
S J Bhusal ◽  
R L Koch ◽  
A J Lorenz
Keyword(s):  
Resistance Genes ◽  
Environmental Sustainability ◽  
Soybean Aphid ◽  
Aphis Glycines ◽  
Aphid Resistance ◽  
Soybean Cultivars ◽  
Major Pest ◽  
Single Field ◽  
Aphis Glycines Matsumura ◽  
Multiple Resistance Genes

Abstract Soybean aphid (Aphis glycines Matsumura (Hemiptera: Aphididae)) has been a major pest of soybean in North America since its detection in this continent in 2000 and subsequent spread. Although several aphid resistance genes have been identified, at least four soybean aphid biotypes have been discovered, with three of them being virulent on soybean cultivars with certain soybean aphid resistance genes. These biotypes are known to vary across years and locations, but information on their variation within single fields is limited. An investigation was conducted to study the variation of soybean aphid biotypes within single townships and fields in Minnesota. Screening of 28 soybean aphid isolates collected from seven soybean fields (six soybean fields in Cairo and Wellington Townships of Renville County, MN and one field in Wilmar Township of Kandiyohi County, MN) revealed the existence of multiple known biotypes of soybean aphid within single fields of soybean. We found up to three biotypes of soybean aphid in a single field. Two biotypes were found in five fields while only one field had only a single biotype. Three isolates presented reactions on a panel of resistant and susceptible indicator lines that were different from known biotypes. These results highlight the importance of characterizing soybean aphid biotypes in small geographical areas and utilizing generated knowledge to develop soybean cultivars pyramided with multiple resistance genes. The outcome will be decreased use of insecticides, thereby improving economic and environmental sustainability of soybean production.

New Haemophilus influenzae Type b Control Strategy: Premature Commitment to Prophylaxis?

PEDIATRICS ◽  
1983 ◽  
Vol 72 (1) ◽  
pp. 118-121
Author(s):  
Jonathan M. Mann ◽  
Harry F. Hull
Keyword(s):  
Haemophilus Influenzae ◽  
Policy Making ◽  
Haemophilus Influenzae Type ◽  
Critical Study ◽  
Haemophilus Influenzae Type B ◽  
Type B ◽  
Public And Private ◽  
Future Assessment ◽  
Official Policy ◽  
Single Field

Recent promulgation of an official policy on prevention of secondary cases of Haemophilus influenzae type b disease illustrates the challenges and frustrations inherent in the policy-making process. Despite evidence that H influenzae type b disease is "contagious" in households and probably also in day care centers and despite demonstration that rifampin eradicates nasopharyngeal H influenzae type b carriage, the single field study of rifampin use to prevent secondary cases of H influenzae type b disease remains unpublished and has yet to receive broad critical scrutiny. Promulgation of the rifampin strategy prior to publication of this critical study is unfortunate, as public and private providers are now committed to a policy that will be difficult to evaluate or alter. Now that the strategy has been issued, the central question regarding rifampin prophylaxis has changed from "Is this strategy effective?" to "Can this strategy be shown to be ineffective?" When policies are issued prior to publication of key supporting data, or when such studies are either missing or highly controversial, the policy-making committee might publish, along with its recommendations, explicit criteria for continuation, modification, or withdrawal of the new policy. This structured reassessment approach could accomodate the critical need to proceed with disease control recommendations—even though based on incomplete information—yet underscore the policy's tentative nature and provide direction for future assessment and study.

scholarly journals Matter bounce cosmology with a generalized single field: non-Gaussianity and an extended no-go theorem

2017 ◽  
Vol 2017 (03) ◽  
pp. 031-031 ◽  
Author(s):  
Yu-Bin Li ◽  
Jerome Quintin ◽  
Dong-Gang Wang ◽  
Yi-Fu Cai
Keyword(s):  
Single Field

An electrochemical sensor array and its application to real-time brain slice imaging

2009 ◽  
Vol 92 (9) ◽  
pp. 1-6 ◽  
Author(s):  
Nahoko Kasai ◽  
Akiyoshi Shimada ◽  
Tobias Nyberg ◽  
Keiichi Torimitsu
Keyword(s):  
Electrochemical Sensor ◽  
Real Time ◽  
Brain Slice ◽  
Sensor Array ◽  
Slice Imaging

scholarly journals Basics of the electropiezoelasticity theory of piezoelectric motors with linear and rotary motion

2018 ◽  
Vol 67 (4) ◽  
pp. 149-168
Author(s):  
Włodzimierz Przyborowski
Keyword(s):  
Piezoelectric Effect ◽  
Rotary Motion ◽  
Electric Motors ◽  
Motion Equations ◽  
Piezoelectric Motors ◽  
Rotary Motors ◽  
General Mathematical Model ◽  
Linear Movement ◽  
Single Field ◽  
Constitutive Parameters

The paper presents the basics of the theory of electropiezoelasticity and adaptation of this theory to description of the simplest electromechanical converters − piezoelectric type electric motors. Because piezoelectricity and elasticity are coupled by complex piezoelasticity constitutive compounds, the formulation of a general mathematical model for these motors is not possible. Therefore, equations for structurally simple piezoelectric motors with linear and rotational motion have been formulated in the paper. Motors with linear movement are characterized by a flat or tube form. Rotary motors, on the other hand, have a cylindrical or disc-shaped form. The electric field, in the adopted forms of piezoelectric motors generating a piezoelectric effect, is a single-field perpendicular to the direction of motion. The determined equations could be simplified by reduction of some constitutive parameters, but it requires a detailed analysis of material compounds and consideration in the interactions of forces and torques in these motors, also strong piezoelectric stresses, which determine a specific kinetics. Keywords: piezoelectric motors with translational and rotary motion, equations of electric-piezoelasticity.

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