195 research outputs found
Politics, Policy and History: History Teaching in Irish Secondary Schools 1922-1970
The teaching of history in Ireland has proved highly relevant to the development of Irish national identity and continues to be politically and culturally significant. Critics of the approach taken to the teaching of history in Irish secondary schools between 1922 and 1970 and of the process of curricular development might suggest that deficiencies in these areas facilitated the propagation of a prejudiced account of Irish history, and contributed to a phenomenon whereby a sense of history was replaced in popular memory with a sense of grievance. This article is an analysis of the social, political, economic and cultural factors that influenced the teaching of history, the content and tone of textbooks, and the development of the history curriculum in secondary schools in the half-century following the inauguration of the Irish Free State in 1922. It charts the evolution of the exploitative relationship between church, state, and history and assesses the costs involved.Lâenseignement de lâhistoire en Irlande entretient un lien Ă©troit avec le dĂ©veloppement de lâidentitĂ© nationale irlandaise et continue dâĂȘtre significatif politiquement et culturellement. Les dĂ©tracteurs de lâapproche adoptĂ©e dans lâenseignement dâhistoire dans les Ă©coles secondaires irlandaises entre 1922 et 1970 et dans le processus de dĂ©veloppement du cursus, pourraient avancer que les faiblesses dans ces approches ont facilitĂ© la propagation dâun rĂ©cit prĂ©conçu de lâhistoire irlandaise, et ont entraĂźnĂ© un glissement par lequel la perception de lâhistoire dans la mĂ©moire populaire a cĂ©dĂ© la place Ă un sentiment dâinjustice. Cet article comprend une analyse des aspects sociaux, politiques, Ă©conomiques et culturels qui ont influencĂ© lâenseignement dâhistoire, le contenu et le ton des manuels scolaires, et le dĂ©veloppement du cursus dâhistoire dans les Ă©coles secondaires dans le demi-siĂšcle aprĂšs lâinauguration lâĂtat Libre dâIrlande en 1922. Il prend aussi en considĂ©ration lâĂ©volution des rapports de force entre lâĂglise, lâĂtat, et lâhistoire et Ă©value les implications de ces interactions
Prophylactic Peri-Nephric Drain Placement in Renal Transplant Surgery: A Systematic Review and Meta-Analysis
Renal transplantation is common worldwide, with >25,000 procedures performed in 2022. Usage of prophylactic perinephric drains is variable in renal transplantation; drains are associated with risks, and there is a lack of consensus regarding benefit of routine drain placement in these patients. This meta-analysis assessed whether prophylactic drainage reduced need for reintervention postoperatively. This systematic review and meta-analysis was carried out using the Preferred Reporting Items in Systematic Reviews and Meta-Analysis, and prospectively registered on PROSPERO. Summary statistics for outcomes of interest underwent meta-analyses to a confidence interval (CI) of 95% and are presented as Forest Plots for Odds Ratio (OR). A systematic literature search in June 2023 revealed 1,540 unique articles across four databases. Of these, four retrospective cohort studies were selected. Meta-analysis of three studies showed no significant reduction in reintervention rate with pre-emptive drain placement, OR = 0.59 (95% CI: 0.16â2.23), p = 0.44. Meta-analysis did not show a significant reduction in perinephric collections with prophylactic drain insertion OR = 0.55 (95% CI: 0.13â2.37), p = 0.42. Finally, there is not good evidence that drain placement reduces superficial wound complications or improves 12-month graft survival. Further work is needed, including well-designed, prospective studies to assess the risks and benefits of drain placement in these patients. Systematic Review Registration: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42023422685, Identifier PROSPERO CRD42021255795
Investigation into the role of monocyte tumour necrosis factor-alpha converting enzyme as a regulator of the inflammatory response in sepsis
Sepsis
consists
of
both
the
systemic
inflammatory
response
syndrome
(SIRS)
and
the
compensatory
anti-inflammatory
response
syndrome
(CARS).
How
these
differential
response
states
are
regulated
is
yet
to
be
fully
elucidated.
Tumour
necrosis
factor-alpha
(TNF)
is
one
of
the
principal
cytokines
involved
in
mediating
SIRS.
TNF
is
released
from
cells
by
tumour
necrosis
factor-alpha
converting
enzyme
(TACE),
this
enzyme
is
responsible
for
the
ectodomain
cleavage
of
a
number
of
other
substrates
relevant
to
inflammation
including
both
TNF
receptors
and
the
adhesion
molecule
L-selectin.
How
TACE
contributes
to,
and
functions
in,
SIRS
and
CARS
is
not
yet
known.
My
objective
was
to
investigate
TACE
activity
and
associated
substrate
shedding
in
monocytes,
specifically
how
the
enzyme
behaved
in
the
context
of
in
vitro
models
that
I
designed
to
induce
states
of
priming
and
tolerance.
I
then
obtained
in
vivo
samples
from
critically
ill
patients
to
determine
whether
there
were
similarities
between
the
TACE
activity
profiles
found
in
patient
cells,
and
volunteer
cells
placed
in
the
in
vitro
models.
My
aims
were:
1)
Determine
how
TACE
activity
profiles
were
altered
when
sequential
inflammatory
stimuli
were
utilised
in
a
two-hit
model
of
sepsis
designed
to
induce
states
of
priming
and
tolerance
and
2)
To
perform
a
clinical
study
to
investigate
TACE
behaviour
in
the
context
of
critical
illness.
I
successfully
refined
a
method
of
isolating
primary
monocytes
from
healthy
volunteers
and
patients
that
allowed
determination
of
TACE
activity
profiles.
Furthermore,
I
demonstrated
that
the
LPS-TACE
axis
was
reset
in
the
context
of
a
two-hit
LPS
model
and
in
sepsis.
I
found
evidence
of
differential
signalling
pathway
reprogramming
in
monocytes
taken
from
patients
with
infectious
and
non-infectious
SIRS.
Finally,
I
demonstrated
that
the
monocyte
TACE
response
to
LPS
is
dependent
on
cell
contact.
These
data
provide
new
insights
into
monocyte
inflammatory
function
during
the
immune
response
Cloning and characterization of novel methylsalicylic acid synthase gene involved in the biosynthesis of isoasperlactone and asperlactone in Aspergillus westerdijkiae
Aspergillus westerdijkiae is the main producer of several biologically active polyketide metabolites including isoasperlactone and asperlactone. A 5298 bp polyketide synthase gene ââaomsasâ has been cloned in Aspergillus westerdijkiae by using gene walking approach and RACE-PCR. The predicted amino acid sequence of aomsas shows an identity of 40â56% with different methylsalicylic acid synthase genes found in Byssochlamys nivea, P. patulum, A. terreus and Streptomyces viridochromogenes. Based on the reverse transcription PCR and kinetic secondary metabolites production studies, aomsas expression was found to be associated with the biosynthesis of isoasperlactone and asperlactone. Moreover an aomsas knockout mutant ââaoDmsasâ of A. westerdijkiae, not only lost the capacity to produce isoasperlactone and asperlactone,but also 6-methylsalicylic acid. The genetically complemented mutant ao+msas restored the biosynthesis of all the missing metabolites. Chemical complementation through the addition of 6-methylsalicylic acid, aspyrone and diepoxide to growing culture of aoDmsas mutant revealed that these compounds play intermediate roles in the biosynthesis of asperlactone and isoasperlactone
Solid state transformers topologies, controllers, and applications: State-of-the-art literature review
With the global trend to produce clean electrical energy, the penetration of renewable energy sources in existing electricity infrastructure is expected to increase significantly within the next few years. The solid state transformer (SST) is expected to play an essential role in future smart grid topologies. Unlike traditional magnetic transformer, SST is flexible enough to be of modular construction, enabling bi-directional power flow and can be employed for AC and DC grids. Moreover, SSTs can control the voltage level and modulate both active and reactive power at the point of common coupling without the need to external flexible AC transmission system device as per the current practice in conventional electricity grids. The rapid advancement in power semiconductors switching speed and power handling capacity will soon allow for the commercialisation of grid-rated SSTs. This paper is aimed at introducing a state-of-the-art review for SST proposed topologies, controllers, and applications. Additionally, strengths, weaknesses, opportunities, and threats (SWOT) analysis along with a brief review of market drivers for prospective commercialisation are elaborated
Reviews and contestability: new directions for Defence
Overview: The First Principles Review of Defence is arguably the most significant review of the defence establishment since the 1973 re-organisation led by Sir Arthur Tange. This Strategic Insights brings together a series of contributions to ASPIâs blog The Strategist written by ten experts with long experience and broad knowledge of Australiaâs defence bureaucracy. They bring a wealth of different perspectives and point to significant challenges ahead for Defence if the reforms proposed by the First Principles Review are to succeed
Potentiation of latent inhibition by haloperidol and clozapine is attenuated in Dopamine D2 receptor (Drd-2) deficient mice: Do antipsychotics influence learning to ignore irrelevant stimuli via both Drd-2 and non-Drd-2 mechanisms?
Whether the dopamine Drd-2 receptor is necessary for the behavioural action of antipsychotic drugs is an important question, as Drd-2 antagonism is responsible for their debilitating motor side effects. Using Drd-2 null mice (Drd2 -/-) it has previously been shown that Drd-2 is not necessary for antipsychotic drugs to reverse D-amphetamine disruption of latent inhibition (LI), a behavioural measure of learning to ignore irrelevant stimuli. Weiner's 'two-headed' model indicates that antipsychotics not only reverse LI disruption, 'disrupted LI', but also potentiate LI when low/absent in controls, 'persistent' LI. We investigated whether antipsychotic drugs haloperidol or clozapine potentiated LI in wild-type controls or Drd2 -/-. Both drugs potentiated LI in wild-type but not in Drd2 -/- mice, suggesting moderation of this effect of antipsychotics in the absence of Drd-2. Haloperidol potentiated LI similarly in both Drd1 -/- and wild-type mice, indicating no such moderation in Drd1 -/-. These data suggest that antipsychotic drugs can have either Drd-2 or non-Drd-2 effects on learning to ignore irrelevant stimuli, depending on how the abnormality is produced. Identification of the non-Drd-2 mechanism may help to identify novel non-Drd2 based therapeutic strategies for psychosis
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