7,845 research outputs found
Review of cerebro-spinal fever based on personal observations and deductions; along with appendix of case-sheets and records
In this Review of Cerebro- spinal
Fever I have endeavoured throughout to confine myself
as much as possible to my own observations, and deductions therefrom, of cases which came directly or
indirectly, under my care during twelve months tour
of duty as Pathologist and Bacteriologist for the
Ripon Military Hospital and Reserve Training Centre.With the object in view of writing this
treatise at a subsequent date in such a form that it
might be helpful to my colleagues, particularly in the
diagnosis and treatment of cerebro-spinal fever, I
took notes of my various cases as they occurred; but
it was not until rather too late that I thought it
might be even more interesting to include the.case
sheets of the actual cases, and so I was unable to
collect. all of these for copying. 'I would point out
at this stage, that in the first place I have entered
up the cases in this volume :in the order of'their
occurrence; and secondly that the cases are in no way
chosen.During the twelve months I was performing
the above mentioned duty I came in contact with every
case of cerebro-spinal fever that was admitted to the
Hospital; but it was not until the February, March,
and April of 1917, when we had an epidemic of 49
cases, that I was asked to take full control of the
cerebro-spinal wards. Up to that time I came in
contact with the cases to do lumbar punctures from a diagnostic point of view, and only occasionally from
a treatment point of view, although, through the
courtesy of the medical officers in charge, I was
given the opportunity of making notes with regard to
the clinical features etc. presented. It will
therefore be interesting to compare the first few
cases in my résumé with the latter ones, because it
was from these earlier cases that I made deductions
which helped me in the diagnosis and treatment of
my subsequent cases; and likewise to compare my own
earlier cases with my later ones because from the
earlier ones I obtained deductions which provided me
with the necessary indications for observing the
clinical features and treatment procedure more
closely, with the object in view of improving; treatment, and with the result, I am pleased to state,
that the death rate verb, rapidly began to come down.
During the first quarter of the above mentioned
twelve months, we had 9 cases of cerebro-spinal . fever admitted of whom 5 died and four recovered;
and of these four,only two were free from sequelae,
i being blind through optic neuritis and irido-choroiditis, and the other deaf and slightly mentally deranged. I regret that I was unable to obtain
the case sheets of all of these cases. During the
second quarter (the Summer of 1915) we had no cases.
During the following quarter we had ten cases, of
whom I obtained several case sheets, and of which
cases seven resulted in death. During the following
quarter, the months of February, March, and. April, when
I had full charge both clinically and bacteriologically, I had 49 cases of which 37 were bacteriologically proved positive cases of cerebro- spinal fever,
and of which only five died. Of the five deaths
three were cases of fulminant type,and in one case
the fatal result came within two hours after admission ; another was a recurrent case; and the fifth died as
the result of broncho-pneumonia as a complication.
Thus it will be seen that the death rate was con - siderably reduced in the last quarter which markedly
improved state of affairs was due to early diagnosis,
early lumbar puncture, close observation of clinical
features during treatment, and the religious carrying
out of the treatment as laid down in my review, all
of which facts I feel sure will be borne out by the
subsequent detailed accounts of the cases themselves
and my records. I would here include a few lines
from the annual report of the cerebrospinal
specialist for the area in which.. I was stationed: -"The mortality rate improvement was most
evident among the Ripon cases. The mortality
here was over 50% during the first 7 months,
whereas during the past 5 months it was reduced
to 18.7%. I feel sure that the improved figure
is due in a great measure to the energy and determination with which Captain Adams, the Pathologist
at the Ripon Military Hospital.tackled the cases.
Previous to February the treatment was carried
out under conditions of divided responsibility,
but later when Captain Adams had sole control
treatment became more persistent and continuous ,"With reference to this report I would mention that
the 18.7% of the 5 months mentioned was improved
during the abovementioned three months to an 8.2%
death rate.The only two subsequent cases I have had
since,and which are written up in this work,were
very severe cases and of great interest. Both of
these cases recovered.In conclusion, it is my ardent desire to
explain that,although this work shows difference of
opinion on many points, I have not written it with
the object in view of its being accepted as a direct
contradiction of any one of these points of difference, but merely as my close observation in every
section of study of the disease, with the object in
view of presenting my findings for comparison with
those of others in order that we might ultimately
perfect the literature at present in our hands, and
thus be of material assistance to the medical world
as a whole, and through them to all sufferers from
this previously considered almost fatal disease
Informed consent and placebo effects: a content analysis of information leaflets to identify what clinical trial participants are told about placebos
BackgroundPlacebo groups are used in randomised clinical trials (RCTs) to control for placebo effects, which can be large. Participants in trials can misunderstand written information particularly regarding technical aspects of trial design such as randomisation; the adequacy of written information about placebos has not been explored. We aimed to identify what participants in major RCTs in the UK are told about placebos and their effects.Methods and FindingsWe conducted a content analysis of 45 Participant Information Leaflets (PILs) using quantitative and qualitative methodologies. PILs were obtained from trials on a major registry of current UK clinical trials (the UKCRN database). Eligible leaflets were received from 44 non-commercial trials but only 1 commercial trial. The main limitation is the low response rate (13.5%), but characteristics of included trials were broadly representative of all non-commercial trials on the database. 84% of PILs were for trials with 50:50 randomisation ratios yet in almost every comparison the target treatments were prioritized over the placebos. Placebos were referred to significantly less frequently than target treatments (7 vs. 27 mentions, p<001) and were significantly less likely than target treatments to be described as triggering either beneficial effects (1 vs. 45, p<001) or adverse effects (4 vs. 39, p<001). 8 PILs (18%) explicitly stated that the placebo treatment was either undesirable or ineffective.ConclusionsPILs from recent high quality clinical trials emphasise the benefits and adverse effects of the target treatment, while largely ignoring the possible effects of the placebo. Thus they provide incomplete and at times inaccurate information about placebos. Trial participants should be more fully informed about the health changes that they might experience from a placebo. To do otherwise jeopardises informed consent and is inconsistent with not only the science of placebos but also the fundamental rationale underpinning placebo controlled trials
Leaving College: Why Students Withdrew from a University
The purpose of this study was to determine the reasons why students withdrew during a semester from a mid-sized, comprehensive university located in the Midwest. Six hundred forty-five students were asked to complete the ACT Withdrawing/Non-returning Student Survey during the 1992-93 academic year and summer semester. Three hundred sixty-five completed surveys were returned for a 57% response rate.
Respondents indicated many different reasons for leaving which varied by year in school and whether or not the respondent was a graduate or undergraduate student. There was no typical withdrawing student and there were many reasons students withdrew over which the university has little or no control. The report concludes with a discussion of Vincent Tinto\u27s (1993) ideas concerning institutional departure.
The retention and persistence of students in higher education has been the focus of serious intellectual inquiry for many years. Various concepts of institutional departure, persistence and models for programmatic interventions to reduce departure have been developed. (For example, see Pascarella & Terenzini, 1991; Stage & Rushin, 1993; Steele, Kennedy, & Gordon, 1993; Tinto, 1993; Wolfe, 1993.) The purpose of this study was to focus on one aspect of student attrition, and. to investigate the reasons and general trends as . to why students withdrew during a semester from a midsized comprehensive university located in the Midwest. This information could then be used to guide institutional action
On evaluating parallel computer systems
A workshop was held in an attempt to program real problems on the MIT Static Data Flow Machine. Most of the architecture of the machine was specified but some parts were incomplete. The main purpose for the workshop was to explore principles for the evaluation of computer systems employing new architectures. Principles explored were: (1) evaluation must be an integral, ongoing part of a project to develop a computer of radically new architecture; (2) the evaluation should seek to measure the usability of the system as well as its performance; (3) users from the application domains must be an integral part of the evaluation process; and (4) evaluation results should be fed back into the design process. It is concluded that the general organizational principles are achievable in practice from this workshop
Viscosity and the Soft Ridge at RHIC
Correlation studies exhibit a ridge-like feature in rapidity and azimuthal
angle, with and without a jet trigger. We ask whether the feature in
untriggered correlations can be a consequence of transverse flow and viscous
diffusion.Comment: Proc. Quark Matter 2008, Jaipur, Indi
Evaluation of bone excision on occipital area of simulated human skull
Surgical effects of bone and soft tissue tumours,
whether for biopsy or full excision have been
researched from as early as the 1970’s [1]. These
researches though have as main focus the biological
(histological) rather the mechanical aspects of the
effects [2]. With technological advances in biomedical
and biomechanical modelling, a plethora of researchers
have been exploring the possibilities of understanding
[3] or even predicting musculoskeletal behaviour under
different loading conditions [4]. This research is
seeking to bridge these two different facets by looking
into the mechanical effects bone tumour surgery might
have to the structural rigidity of a simulated human
skull
- …