Reply to the Comment on “FeS colloids – formation and mobilization pathways in natural waters” by S. Peiffer, D0EN00967A

Author(s):  
Vincent Noël ◽  
Naresh Kumar ◽  
Kristin Boye ◽  
Juan S. Lezama-Pacheco ◽  
Gordon E. Brown ◽  
...  

In this response to the comment by S. Peiffer, Environ. Sci.: Nano, 2021, we show that detailed examination of the Fe speciation provides clear evidence of the Fe–S-colloid stability and composition.

Author(s):  
J. P. Colson ◽  
D. H. Reneker

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.


Author(s):  
A. Ourmazd ◽  
G.R. Booker ◽  
C.J. Humphreys

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.


2020 ◽  
Vol 5 (2) ◽  
pp. 463-478
Author(s):  
Elizabeth Crais ◽  
Melody Harrison Savage

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


Derrida Today ◽  
2012 ◽  
Vol 5 (1) ◽  
pp. 39-54 ◽  
Author(s):  
Marian Hobson

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.


Author(s):  
Christopher J. Berry

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.


2019 ◽  
Vol 22 (6) ◽  
pp. 116-122
Author(s):  
Sh. Sh. Shamansurov ◽  
Sh. H. Saidazizova ◽  
S. O. Nazarova

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).


2002 ◽  
Vol 1 (3) ◽  
pp. 341-346
Author(s):  
Viorica Iambartev ◽  
Gheorghe Duca ◽  
Maria Gonta ◽  
Vera Matveevici

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