Primer of Brainstem Anatomy: A Detailed Examination of Anatomy and Pathology Through MRI and DTI

Neurographics ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 76-87 ◽  
Author(s):  
M. Fitzgibbons ◽  
N. Salamon
Keyword(s):  
Detailed Examination ◽  
Brainstem Anatomy

Electron Irradiation Effects in Polyoxymethylene Crystals Grown Inside Trioxane Crystals

1971 ◽  
Vol 29 ◽  
pp. 78-79
Author(s):  
J. P. Colson ◽  
D. H. Reneker
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Detailed Examination ◽  
The Other ◽  
Electron Micrograph ◽  
Irradiation Effects ◽  
Threefold Axis ◽  
Typical Sample ◽  
Polymer Crystals ◽  
Chain Axis

Polyoxymethylene (POM) crystals grow inside trioxane crystals which have been irradiated and heated to a temperature slightly below their melting point. Figure 1 shows a low magnification electron micrograph of a group of such POM crystals. Detailed examination at higher magnification showed that three distinct types of POM crystals grew in a typical sample. The three types of POM crystals were distinguished by the direction that the polymer chain axis in each crystal made with respect to the threefold axis of the trioxane crystal. These polyoxymethylene crystals were described previously.At low magnifications the three types of polymer crystals appeared as slender rods. One type had a hexagonal cross section and the other two types had rectangular cross sections, that is, they were ribbonlike.

A new dissociation mode for dislocations in silicon

1978 ◽  
Vol 36 (1) ◽  
pp. 346-347
Author(s):  
A. Ourmazd ◽  
G.R. Booker ◽  
C.J. Humphreys
Keyword(s):  
Detailed Examination ◽  
Experimental Results ◽  
Dislocation Network ◽  
Weak Beam ◽  
Phosphorus Doped

A (111) phosphorus-doped Si specimen, thinned to give a TEM foil of thickness ∼ 150nm, contained a dislocation network lying on the (111) plane. The dislocation lines were along the three <211> directions and their total Burgers vectors,ḇt, were of the type , each dislocation being of edge character. TEM examination under proper weak-beam conditions seemed initially to show the standard contrast behaviour for such dislocations, indicating some dislocation segments were undissociated (contrast A), while other segments were dissociated to give two Shockley partials separated by approximately 6nm (contrast B) . A more detailed examination, however, revealed that some segments exhibited a third and anomalous contrast behaviour (contrast C), interpreted here as being due to a new dissociation not previously reported. Experimental results obtained for a dislocation along [211] with for the six <220> type reflections using (g,5g) weak-beam conditions are summarised in the table below, together with the relevant values.

Communication Sciences and Disorders PhD Graduates' Perceptions of Their PhD Program

2020 ◽  
Vol 5 (2) ◽  
pp. 463-478
Author(s):  
Elizabeth Crais ◽  
Melody Harrison Savage
Keyword(s):  
Detailed Examination ◽  
Career Expectations ◽  
Doctoral Preparation ◽  
Creative Solutions ◽  
Phd Education ◽  
Doctor Of Philosophy ◽  
First Time ◽  
Students Success ◽  
Phd Program

Purpose The shortage of doctor of philosophy (PhD)–level applicants to fill academic and research positions in communication sciences and disorders (CSD) programs calls for a detailed examination of current CSD PhD educational practices and the generation of creative solutions. The intended purposes of the article are to encourage CSD faculty to examine their own PhD program practices and consider the perspectives of recent CSD PhD graduates in determining the need for possible modifications. Method The article describes the results of a survey of 240 CSD PhD graduates and their perceptions of the challenges and facilitators to completing a PhD degree; the quality of their preparation in research, teaching, and job readiness; and ways to improve PhD education. Results Two primary themes emerged from the data highlighting the need for “matchmaking.” The first time point of needed matchmaking is prior to entry among students, mentors, and expectations as well as between aspects of the program that can lead to students' success and graduation. The second important matchmaking need is between the actual PhD preparation and the realities of the graduates' career expectations, and those placed on graduates by their employers. Conclusions Within both themes, graduate's perspectives and suggestions to help guide future doctoral preparation are highlighted. The graduates' recommendations could be used by CSD PhD program faculty to enhance the quality of their program and the likelihood of student success and completion. Supplemental Material https://doi.org/10.23641/asha.11991480

Apparitions of ‘Freedom’ (the Word)

Derrida Today ◽  
2012 ◽  
Vol 5 (1) ◽  
pp. 39-54 ◽  
Author(s):  
Marian Hobson
Keyword(s):  
Detailed Examination ◽  
Close Attention ◽  
Change Of Perspective

Derrida thematises his writing through a change of perspective which moves from very detailed examination of an argument to more general statements. This paper is a consideration of how Derrida anchors his close attention to the detail of an argument in a wider philosophical-historical and indeed social framework. In this paper, the word in question is ‘freedom’, discussed with the philosopher and psychoanalyst Elisabeth Roudinesco; this paper moves back chronologically to Force of Law, and finally to a passage in Of Grammatology to demonstrate that in Derrida's work from early to late there is a web of reflection about freedom.

Essays on Hume, Smith and the Scottish Enlightenment

2018 ◽  
Author(s):  
Christopher J. Berry
Keyword(s):  
Intellectual History ◽  
David Hume ◽  
Adam Smith ◽  
Detailed Examination ◽  
Scottish Enlightenment ◽  
Subsequent Work ◽  
Retrospective Assessment ◽  
The 1960S

A collection of essays by a leading scholar. The work selected spans several decades, which together with three new unpublished pieces, cumulatively constitute a distinct interpretation of the Scottish Enlightenment as a whole while incorporating detailed examination of the work of David Hume and Adam Smith. There is, in addition, a substantial introduction which, alongside Berry’s personal intellectual history, provides a commentary on the development of the study of the Scottish Enlightenment from the 1960s. Each of the previously published chapters includes a postscript where Berry comments on subsequent work and his own retrospective assessment. The recurrent themes are the ideas of sociability and socialisation, the Humean science of man and Smith’s analysis of the relation between commerce and morality.

Clinical-neurosonographic parallels of intracranial hemorrhagies in early childhood

2019 ◽  
Vol 22 (6) ◽  
pp. 116-122
Author(s):  
Sh. Sh. Shamansurov ◽  
Sh. H. Saidazizova ◽  
S. O. Nazarova
Keyword(s):  
Early Childhood ◽  
Comparative Analysis ◽  
Subarachnoid Hemorrhage ◽  
Left Hemisphere ◽  
Intracranial Hemorrhage ◽  
Intraventricular Hemorrhage ◽  
Detailed Examination ◽  
Intracranial Hemorrhages ◽  
Risk Of Hemorrhage ◽  
Neurological State

Objective. Conduct a comparative analysis of clinical and neurosonographic indicators of intracranial hemorrhage in infants.Materials and methods. In the clinical part of the study, 68 patients took part in the acute / acute periods of intracranial hemorrhage, which we took for the study on the basis of the Tashkent City Children's Clinical Hospital No1. Gender ratios of which were 69.1% boys (47 children) and 30.9% girls (21 children), from birth to 2 months of life (average age at the time of hemorrhage is 36.28 ± 9.85 days). Diagnostic examination included neurosonography (NSG) of all children in the first 24 hours of the implementation of intracranial hemorrhages on admission to the clinic.Results. According to our study of 68 children with intracranial hemorrhage, it turned out that the average age of morbidity was 36.28 ± 9.85 days (p < 0.001) Neurosonographic indicators stated the presence of parenchymal hemorrhage (right and left hemisphere), SAH (subarachnoid hemorrhage), hemorrhage into the trunk, IVH (intraventricular hemorrhage) II, IVH III. According to neurosonography, parenchymal hemorrhage (right-16 or left hemisphere-21) was observed in 37 patients, SAH and IVH-II 21 (30.9%) patients, IVH III – in 17 (25%) patients, hemorrhage in 3 (4.4%) brain stem of patientsConclusion. Analysis of the implementation of hemorrhage showed that not always small gestational age is the risk of hemorrhage. Cases of less severe changes (27%) on NSG with a coarser clinical picture and vice versa (15%), necessitate (taking into account the severity of the neurological state), a more detailed examination, including visualization (CT, MRI).

Synthesis of Fragments of the Vasoactive Intestinal Peptide (VIP) and Analysis of Their Residual Biological Activities

1995 ◽  
Vol 60 (7) ◽  
pp. 1229-1235 ◽  
Author(s):  
Ivana Zoulíková ◽  
Ivan Svoboda ◽  
Jiří Velek ◽  
Václav Kašička ◽  
Jiřina Slaninová ◽  
...  
Keyword(s):  
Amino Acid ◽  
Biological Activities ◽  
Residual Activity ◽  
Detailed Examination ◽  
Amino Acid Residues ◽  
Linear Peptide ◽  
Zone Electrophoresis ◽  
Capillary Zone

The vasoactive intestinal (poly)peptide (VIP) is a linear peptide containing 28 amino acid residues, whose primary structure indicates a low metabolic stability. The following VIP fragments, as potential metabolites, and their analogues were prepared by synthesis on a solid: [His(Dnp)1]VIP(1-10), VIP(11-14), [D-Arg12]VIP(11-14), [Lys(Pac)15,21,Arg20]VIP(15-22), and VIP(23-28). After purification, the peptides were characterized by amino acid analysis, mass spectrometry, RP HPLC, and capillary zone electrophoresis. In some tests, detailed examination of the biological activity of the substances in vivo and in vitro gave evidence of a low, residual activity of some fragments, viz. a depressoric activity in vivo for [His(Dnp)1]VIP(1-10) and a stimulating activity for the release of α-amylase in vitro and in vivo for [Lys(Pac)15,21,Arg20]VIP(15-22) and VIP(23-28).

The Roman Military Base at Dura-Europos, Syria

2019 ◽  
Author(s):  
Simon James
Keyword(s):  
Detailed Examination ◽  
Military Base ◽  
Roman World ◽  
The World ◽  
Social Dynamic ◽  
Holy Places ◽  
History Of ◽  
Roman Military ◽  
Roman East

Dura-Europos, a Parthian-ruled Greco-Syrian city, was captured by Rome c.AD165. It then accommodated a Roman garrison until its destruction by Sasanian siege c.AD256. Excavations of the site between the World Wars made sensational discoveries, and with renewed exploration from 1986 to 2011, Dura remains the best-explored city of the Roman East. A critical revelation was a sprawling Roman military base occupying a quarter of the city's interior. This included swathes of civilian housing converted to soldiers' accommodation and several existing sanctuaries, as well as baths, an amphitheatre, headquarters, and more temples added by the garrison. Base and garrison were clearly fundamental factors in the history of Roman Dura, but what impact did they have on the civil population? Original excavators gloomily portrayed Durenes evicted from their homes and holy places, and subjected to extortion and impoverishment by brutal soldiers, while recent commentators have envisaged military-civilian concordia, with shared prosperity and integration. Detailed examination of the evidence presents a new picture. Through the use of GPS, satellite, geophysical and archival evidence, this volume shows that the Roman military base and resident community were even bigger than previously understood, with both military and civil communities appearing much more internally complex than has been allowed until now. The result is a fascinating social dynamic which we can partly reconstruct, giving us a nuanced picture of life in a city near the eastern frontier of the Roman world.

Religious Markets, Capital Markets, and Church Finances in Industrializing America

2017 ◽  
Author(s):  
Eric Baldwin
Keyword(s):  
Capital Markets ◽  
Detailed Examination ◽  
Social Stability ◽  
Religious Institutions ◽  
Moral Norms ◽  
The Public ◽  
Nineteenth Century America ◽  
Protestant Churches ◽  
Church Finances ◽  
The City

A number of scholars in recent years have turned to market models to describe religion in nineteenth-century America, arguing that competition among churches largely accounts for the nation’s relative religious vitality. However, a detailed examination of one religious ‘marketplace’—the city of Lowell, Massachusetts—demonstrates the limits of such interpretations. First, such scholars fail to capture the ways that Protestant churches functioned as an interdenominational de facto establishment, co-operating in the shared project of promoting the public good and defending moral norms. Also, to the extent that churches did compete, they competed for money, as much as for adherents. In doing so, they appropriated new methods accompanying the expansion of capitalism, competing for funds in nascent capital markets. Thus, churches appealed to individuals not primarily as consumers of religious goods, but as potential investors in religious institutions, and presented churches as both safe and profitable investments and bulwarks of social stability.

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