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5-hydroxytryptamine and motor-sensory dysfunction : do they discriminate functional subtypes of constipation?Shekhar, Chander January 2012 (has links)
Recent studies suggest that patients identified by the Rome III criteria for functional constipation (FC) and irritable bowel syndrome with constipation (IBS-C) are not distinct groups. Previous studies have shown that patients with IBS-C exhibit no or limited 5-HT response to meal ingestion, with plasma concentrations remaining similar to those under fasting conditions. The aim of this study was to determine whether patients with FC show a similar 5-HT response to meal ingestion as patients with IBS-C, and to investigate any relationship to gastrointestinal transit and visceral sensitivity. 23 female IBS-C patients, 11 female FC patients and 23 healthy female volunteers (HV) were recruited. Platelet depleted plasma 5-HT concentrations were measured under fasting (2hrs) and fed (4hrs) conditions. Within 2 weeks, oro-caecal (hydrogen breath test) and colonic (radio-opaque markers followed by X-ray) transit, along with rectal sensitivity (barostat) were determined. The main findings of the study are: 1. The FC patients had no 5-HT response to meal ingestion, as previously seen in patients with IBS-C, compared with healthy volunteers. 2. Patients with FC had abdominal and bowel movement associated symptoms as well as delayed colonic transit (whole gut transit), similar to that seen in IBS-C compared with healthy volunteers. 3. The mean pain threshold in patients with FC was similar to that seen in healthy volunteers, with more patients with hyposensitivity or insensitivity in this group compared with IBS-C and no patients with hypersensitivity. 4. Patients with FC had a shift towards higher fasting and postprandial PDP 5-HT levels, unlike patients with IBS-C, compared to healthy volunteers.This study show that based on symptoms, IBS-C and FC patients have more similarities than differences. However, although patients with FC had a similar 5-HT response to a test meal, they had different fasting 5-HT levels and some different physiological findings on assessment of visceral sensitivity with barostat.
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Accelerating Genomic Sequence Alignment using High Performance Reconfigurable ComputersMcMahon, Peter 01 January 2008 (has links)
Recongurable computing technology has progressed to a stage where it is now possible to achieve orders of magnitude performance and power eciency gains over conventional computer architectures for a subset of high performance computing applications. In this thesis, we investigate the potential of recongurable computers to accelerate genomic sequence alignment specically for genome sequencing applications.
We present a highly optimized implementation of a parallel sequence alignment algorithm for the Berkeley Emulation Engine (BEE2) recongurable computer, allowing a single BEE2 to align simultaneously hundreds of sequences. For each recongurable processor (FPGA), we demonstrate a 61X speedup versus a state-of-the-art implementation on a modern conventional CPU core, and a 56X improvement in performance-per-Watt. We also show that our implementation is highly scalable and we provide performance results from a cluster implementation using 32 FPGAs.
We conclude that recongurable computers provide an excellent platform on which to run sequence alignment, and that clusters of recongurable computers will be able to cope far more easily with the vast quantities of data produced by new ultra-high-throughput sequencers.
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Effets des toxines insecticides du Bacille de Thuringe sur la perméabilité des vésicules de membrane à bordure en brosse intestinale du sphinx du tabacKirouac, Martin January 2006 (has links)
Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.
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A critical hermeneutic examination of the dynamic of identity change in Christian conversion among Muslims in EthiopiaMunson, Gary Ray 10 1900 (has links)
This
research
examines
the
topic
of
the
Christian
mission
to
Muslims
in
Ethiopia.
The
Insider
Movement
paradigm
is
examined
with
respect
to
the
meaning
of
conversion
and
identity
and
how
these
concepts
may
best
be
understood
in
support
of
Muslim
outreach.
The
study
area
of
Ethiopia
is
not
a
Muslim
majority
nation
but
rather
is
pluralistic
society
and
political
system.
Thus
the
most
specific
application
is
other
sub-‐
Saharan,
non-‐Muslim
majority
nations
in
Africa.
The
cultural
and
historical
context
of
Ethiopia
is
first
explored
with
special
reference
to
factors
arising
from
or
focusing
upon
religion.
Literature
is
reviewed
regarding
evangelization,
church
planting,
and
outreach
to
Muslims.
The
concept
of
conversion
is
discussed
at
length
from
both
social
science
and
Christian
theological
paradigms.
The
topic
of
identity
is
explored
including
identity
theory
as
used
among
sociology,
psychology,
anthropology,
and
philosophy.
The
research
was
conducted
and
analyzed
using
concepts
from
the
philosophical
orientation
of
critical
hermeneutics
with
specific
use
of
the
communication
theory
of
Jurgen
Habermas
and
narrative
theory
of
Paul
Ricoeur.
The
narrative
identity
theory
of
Ricoeur
was
found
to
be
appropriate
to
a
mission
to
Muslims.
An
understanding
of
conversion
as
being
a
process
of
transformation
into
Christ-‐likeness
through
the
power
of
the
Holy
Spirit
was
found
to
be
most
compatible
with
Muslim
outreach. / Christian Spirituality, Church History & Missiology / D. Th. (Missiology)
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5 |
A critical hermeneutic examination of the dynamic of identity change in Christian conversion among Muslims in EthiopiaMunson, Gary Ray 10 1900 (has links)
This research examines the topic of the Christian mission to Muslims in Ethiopia. The Insider Movement paradigm is examined with respect to the meaning of conversion and identity and how these concepts may best be understood in support of Muslim outreach. The study area of Ethiopia is not a Muslim majority nation but rather is pluralistic society and political system. Thus the most specific application is other subSaharan, non-Muslim majority nations in Africa. The cultural and historical context of Ethiopia is first explored with special reference to factors arising from or focusing upon religion. Literature is reviewed regarding evangelization, church planting, and outreach to Muslims. The concept of conversion is discussed at length from both social science and Christian theological paradigms. The topic of identity is explored including identity theory as used among sociology, psychology, anthropology, and philosophy. The research was conducted and analyzed using concepts from the philosophical orientation of critical hermeneutics with specific use of the communication theory of Jurgen Habermas and narrative theory of Paul Ricoeur. The narrative identity theory of Ricoeur was found to be appropriate to a mission to Muslims. An understanding of conversion as being a process of transformation into Christ-likeness through the power of the Holy Spirit was found to be most compatible with Muslim outreach. / Christian Spirituality, Church History and Missiology / D. Th. (Missiology)
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