50 research outputs found
Effectiveness of isometric exercises on level of pain among osteoarthritis patients in selected villages at Virudhunagar
The Research ProjectâA study to assess the effectiveness of Isometric
exercises on level of pain among osteoarthritis patients in selected villages at
Virudhunagarâ. It is conducted as partial fulfillment of the requirement for the Degree
of Master of science in nursing at Sri.K.Ramachandran Naidu College of Nursing,
Thirunelveli under the Tamil Nadu Dr. M.G.R Medical University, Chennai during
the year August 2016. OBJECTIVES: To assess the pre and post-test level of pain among patients with osteoarthritis in
experimental group and control group. To compare the pre-test and post-test level of pain among osteoarthritis patients
in experimental group and control group. To compare the effectiveness of isometric exercise on level of pain among
osteoarthritis patients in experimental group and control group. To associate the pre-test level of pain among patients with osteoarthritis in
experimental group and control group with their selected demographic variables.
(Age, Sex, Body mass index, Marital Status, Education, Occupation, Dietary
pattern, Duration of illness and Duration of treatment). HYPOTHESES: All hypotheses are tested at 0.05 levels : H1: Mean post-test level of pain among osteoarthritis patients in experimental
group will be significantly lower than the mean pre-test level of pain in
experimental group.
H2: Mean post-test level of pain among osteoarthritis patients in control group will
be significantly lower than the mean pre-test level of pain in control group.
H3: Mean post-test level of pain among osteoarthritis patients in experimental
group will be significantly lower than the mean post-test level of pain in control
group.
H4: There will be a significant association between the pre-test level of pain among
Patients with osteoarthritis in experimental and control group with their
selected demographics variables. (Age, Sex, Body mass index, Marital Status,
Education, Occupation, Dietary pattern, Duration of illness and Duration of
treatment)
The study was based on the CIPP (Context, Input, Process, Product Model).
The quantitative approach was used for this study. The study was conducted in
Zaminkollankondan and Avarampatti village in Virudhunagar. The design adopted for
this study was Quasi experimental Pre-test and Post-test control group design to
assess the effectiveness of Isometric exercises on level of pain among osteoarthritis
patients. Non probability purposive sampling technique was used to select 30 samples
for experimental group from zaminkollankondan village and the same method was
used to select 30 samples for control group from avarampatti.
The data collection tool used for the study was modified Lequence
observational checklist for osteoarthritis to identify the severity of osteoarthritis. The
content validity of the tool was obtained from four nursing experts and one medical
experts in the field of medical and surgical nursing. The reliability of the tool(r=0.9)
was established by test and retest method by using Karl Pearsonâs correlation
coefficient.The tool was accepted as reliable by the clinical experts. Pilot study was
conducted to find out the feasibility and the data analysis was done.
Data collection was done by using the modified Lequence observational
checklist to identifying the severity of osteoarthritis and pre and post-test level of pain
was measured by Numerical pain intensity rating scale for experimental and control
group. The data obtained were analyzed both in terms of descriptive and inferential
statistics.
FINDINGS: Majority of patients 10 (33.3%) were between the age group of 30 - 40years in
experimental group. Where as in control group majority of patients 11(37%)
were in the age group of 41-50 years. With respect to sex classification, majority of patients 15 (50%) were female
and 15 (50%) were male in the experimental group, whereas in control group
majority of patients 16(53.3%) were female. With regard to Body Mass Index (BMI), majority of the patients 16(53%)
were belongs to Overweight, whereas in control group, majority of patients 11
(37%) were belongs to normal weight and Overweight category. With regard to marital status, majority of patients 17(57%) were belongs to
married in experimental group, where as in control group majority of patients
22(73%) were in unmarried group. Based on the educational status, majority of patients 12(40%) were belongs to
no formal education in experimental group where as in control group majority
of patients 13(44%) were completed primary education. With respect to occupation majority of patients 16(53%) were belongs to
sedentary worker in experimental group and control group also majority of
patients 13(44%) were in sedentary worker. With regard to dietary habits classification, majority of patients 21 (70%) were
belongs vegetarianin the experimental group, whereas in control group
majority of patients 26(87%) were non vegetarian. With regard to duration of illness,majority of patients 12(40%) were in more
than 1 year to 2 years of illness, whereas in control group also the majority of
patients were in 14(46%) were in more than 1 year to 2 years of illness. With regard to duration of treatment, majority of patients 16(53%) were in
more than 1 year to 2 years of treatment, whereas in control group also the
majority of patients were in 16(54%) were in the category of 6months -1year
of treatment. With regard to the pre and post-test level of pain among experimental group,
it was found that the pre-test mean was 6.17, standard deviation 2.07 and mean
difference was 2.97 and post-test level of mean value was 3.2 standard
deviation 2.35 and it was found that the mean difference was 2.97 and the t
value was 7.77 indicating that the table value is highly than calculated value.It
was found that there is significant reduction in post-test level of pain in the
experimental group than the pre-test level of pain at p<0.05 level. With regard to the pre and post-test level of pain among control group, it was
found that the pre-test 4.06 with standard deviation of 2.40 and the post-test
mean value was 5.93 standard deviation 2.63.The mean difference was -1.87
and calculated âtâ value was 2.87 which showed that there was no significant
reduction in post-test level of pain than the pre-test test level of pain among
osteoarthritis patients in control group at p < 0.05 levels. Hence hypothesis
was rejected. With regard to the post-test level of pain among experimental group it was
found that the mean value is 3.2 and the standard deviation is 2.35, where as in
control group mean value is 5.93 and standard deviation is 2.63 and the âtâ
value was 7.01, it shows that there is significant reduction in post-test level of
pain in experimental group than post-test level of pain in control group at
p<0.05 level. RECOMMENDATIONS: Similar study can be conducted with large samples for better generalisation. An explorative study can be done at various settings like in hospitals or in
orthoclinics to identify factors influencing osteoarthritis among elderly people. A similar study can be conducted to find out the effectiveness of other
therapies like yoga and muscle relaxation technique. A comparative study can be done between aerobic exercise and isometric
exercise for osteoarthritis. A study can be conducted to evaluate the knowledge and attitude of nurses
regarding isometric exercises for osteoarthritis. As a nurse working in hospital as well as in community has a vital role to
provide effective nursing care for the patients. The nurses are need to develop their
knowledge and skills in management of osteoarthritis by assessing the pain and
providing care to the osteoarthritis patients, and to use wide variety of interventions in
order to reduce pain in such patients. CONCLUSION: From the result of the study, it was concluded that, rendering Isometric
exercises to the osteoarthritis patient was effectivess in reduction of knee pain.
Therefore the investigator felt that the importance of isometric exercise for
osteoarthritis patient used to reduce the level of pain
Magnetothermoelectric properties of Bi2Se3
We present a study of entropy transport in Bi2Se3 at low temperatures and
high magnetic fields. In the zero-temperature limit, the magnitude of the
Seebeck coefficient quantitatively tracks the Fermi temperature of the 3D Fermi
surface at \Gamma-point as the carrier concentration changes by two orders of
magnitude (10 to 10cm). In high magnetic fields, the
Nernst response displays giant quantum oscillations indicating that this
feature is not exclusive to compensated semi-metals. A comprehensive analysis
of the Landau Level spectrum firmly establishes a large -factor in this
material and a substantial decrease of the Fermi energy with increasing
magnetic field across the quantum limit. Thus, the presence of bulk carriers
significantly affects the spectrum of the intensively debated surface states in
Bi2Se3 and related materials.Comment: 10 pages, 9 figure
Scientific instrumentation of the Radio-Astronomy-Explorer-2 satellite
The RAE-2 spacecraft has been collecting radio astronomical measurements in the 25 kHz to 13 MHz frequency range from lunar orbit since June, 1973. A summary is given of the technical aspects of the program including the calibration, instrumentation and operation of the RAE-2 experiments. Performance of the experiments over the first 18 months of the flight is summarized and illustrated. Among the unique features of the RAE-2 is the capability to observe repeated lunar occultations of strong radio sources at very low frequencies
Beta-functions in Yang-Mills Theory from Non-critical String
The renormalization group equations of the Yang-Mills theory are examined in
the non-critical string theory according to the framework of the holography.
Under a simple ansatz for the tachyon, we could find several interesting
solutions which are classified by the value of the tachyon potential at the
vacuum. We show two typical, asymptotic-free solutions which are different in
their infrared behaviors. For both types of solutions, we could obtain
quark-confinement potential from the Wilson-loop. The stability of the tachyon
and the ZigZag symmetry are also discussed for these solutions.Comment: 16 pages, 5 figure
On the YM and QCD spectra from five dimensional strings
We consider a non-critical five dimensional string setup which could provide
a dual description of QCD in the limit of large number of colors and flavors.
The model corresponds to N_c color D3-branes and N_f D4/anti D4-brane pairs
supporting flavor degrees of freedom. The matching of the string model spectrum
with the dual field theory one is considered. We discuss the consequences of
the possible matching of the gravity modes with the light glueballs and the
interpretation of the brane spectrum in Yang-Mills and QCD.Comment: 21 pages; V2: added corrections and references to match the published
versio
Toward a Systematic Holographic QCD: A Braneless Approach
Recently a holographic model of hadrons motivated by AdS/CFT has been
proposed to fit the low energy data of mesons. We point out that the infrared
physics can be developed in a more systematic manner by exploiting backreaction
of the nonperturbative condensates. We show that these condensates can
naturally provide the IR cutoff corresponding to confinement, thus removing
some of the ambiguities from the original formulation of the model. We also
show how asymptotic freedom can be incorporated into the theory, and the
substantial effect it has on the glueball spectrum and gluon condensate of the
theory. A simple reinterpretation of the holographic scale results in a
non-perturbative running for alpha_s which remains finite for all energies. We
also find the leading effects of adding the higher condensate into the theory.
The difficulties for such models to reproduce the proper Regge physics lead us
to speculate about extensions of our model incorporating tachyon condensation.Comment: 27 pages, LaTe
Linear square-mass trajectories of radially and orbitally excited hadrons in holographic QCD
We consider a new approach towards constructing approximate holographic duals
of QCD from experimental hadron properties. This framework allows us to derive
a gravity dual which reproduces the empirically found linear square-mass
trajectories of universal slope for radially and orbitally excited hadrons.
Conformal symmetry breaking in the bulk is exclusively due to infrared
deformations of the anti-de Sitter metric and governed by one free mass scale
proportional to Lambda_QCD. The resulting background geometry exhibits dual
signatures of confinement and provides the first examples of holographically
generated linear trajectories in the baryon sector. The predictions for the
light hadron spectrum include new relations between trajectory slopes and
ground state masses and are in good overall agreement with experiment.Comment: 33 pages, 5 figures, updated to the extended version published in
JHEP, vector meson bulk potential and metric corrected, comments and
references added, phenomenology and conclusions unchange
Silicon-in-silica spheres via axial thermal gradient in-fibre capillary instabilities
The ability to produce small scale, crystalline silicon spheres is of significant technological and scientific importance, yet scalable methods for doing so have remained elusive. Here we demonstrate a silicon nanosphere fabrication process based on an optical fibre drawing technique. A silica-cladded silicon-core fibre with diameters down to 340 nm is continuously fed into a flame defining an axial thermal gradient and the continuous formation of spheres whose size is controlled by the feed speed is demonstrated. In particular, spheres of diameter \u3c 500 nm smaller than those produced under isothermal heating conditions are shown and analysed. A fibre with dual cores, p-type and n-type silicon, is drawn and processed into spheres. Spatially coherent break-up leads to the joining of the spheres into a bispherical silicon \u27p-n molecule\u27. The resulting device is measured to reveal a rectifying I-V curve consistent with the formation of a p-n junction
Cosmological Evolution of a Brane Universe in a Type 0 String Background
We study the cosmological evolution of a D3-brane Universe in a type 0 string
background. We follow the brane-universe along the radial coordinate of the
background and we calculate the energy density which is induced on the brane
because of its motion in the bulk. We find that for some typical values of the
parameters and for a particular range of values of the scale factor of the
brane-universe, the effective energy density is dominated by a term
proportional to indicating a slow varying inflationary
phase. For larger values of the scale factor the effective energy density takes
a constant value and the brane-universe enters its usual inflationary period.Comment: 25 pages,1 figure,LaTex file,final version to appear in Phys. Rev.
Steady-state thermal analysis of an innovative receiver for linear Fresnel reflectors
The study of the performance of an innovative receiver for linear Fresnel reflectors is carried out in this paper, and the results are analyzed with a physics perspective of the process. The receiver consists of a bundle of tubes parallel to the mirror arrays, resulting on a smaller cross section for the same receiver width as the number of tubes increases, due to the diminution of their diameter. This implies higher heat carrier fluid speeds, and thus, a more effective heat transfer process, although it conveys higher pumping power as well. Mass flow is optimized for different tubes diameters, different impinging radiation intensities and different fluid inlet temperatures. It is found that the best receiver design, namely the tubes diameter that maximizes the exergetic efficiency for given working conditions, is similar for the cases studied. There is a range of tubes diameters that imply similar efficiencies, which can drive to capital cost reduction thanks to the flexibility of design. In addition, the length of the receiver is also optimized, and it is observed that the optimal length is similar for the working conditions considered. As a result of this study, it is found that this innovative receiver provides an optimum design for the whole day, even though impinging radiation intensity varies notably. Thermal features of this type of receiver could be the base of a new generation of concentrated solar power plants with a great potential for cost reduction, because of the simplicity of the system and the lower weigh of the components, plus the flexibility of using the receiver tubes for different streams of the heat carrier fluid