2,715 research outputs found

    Clinical presentation, risk factors, complications and outcome of acute myocardial infarction in elderly patients

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    Background: Myocardial Infarction is one of the most common causes of mortality and morbidity among the elderly patients. Also, it is known for wide range of clinical presentations other than chest pain. This article enlightens the clinical features, risk factors, complications, prognosis and outcome of Acute myocardial infarction in elderly patients. The objective of this study was to assess the risk factors, various symptoms, complications, prognosis and outcome of elderly patients with Acute myocardial Infarction (AMI).  Methods: This is a prospective study done over a period of two years in a tertiary care hospital in South India. 80 elderly patients who were diagnosed as AMI were included in the study.Results: Among the eighty patients the majority of the patients belonged to the age group 60-69 years. Twenty percent of the patients presented without chest pain. The atypical presentations included dyspnoea, giddiness, vomiting, sweating and epigastric pain. Mortality rate was 20%.Conclusions: This study showed that even though chest pain was the most common presentation in elderly AMI patients, they were also found to have atypical presentations like shortness of breath, giddiness, vomiting, sweating and epigastric pain. This signifies the need of examining physicians to meticulously identify acute myocardial infarction in elderly though they may not present typically. 

    INTERNET OF THING BASED CAR PARKING SYSTEM

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    In the current era, we are facing a new problem of parking of vehicles. It is a major problem in urban cities. The problem is more tough because of continues growing number of vehicle and also size of vehicles. Car parking is not just a major problem in India but also in all over the world. We know that one million vehicles burn oil every day. In this paper, we propose an automatic and real-time system for automated car parking. This system would be implemented by the use of internet of things (IOTs). IOT refers as any physical thing that is connected to internet or exchanging information or data between internet and physical device. Arduino Uno is a microcontroller used in IOT. It is used for building digital devices, and interactive objects that can sense and control physical devices. Our smart parking will be implementing using Arduino Uno board for car parking and Ethernet shield to connect parking area with web or internet. By using our automated parking system, a user can save much time for searching free parking space. An infrared sensor has to be employed in each slot to check that a particular plot is vacant or not. Searching smart parking system helps people to search parking space accessible with the ease of IOT automation by supplying parking slot free information. The user can book in advance the parking slot and update the information to the server. Every user has a unique id and password. In case a car in stolen and enter the parking IOT the server checks the database and inform the police.Â

    Study on association of serum lipoprotein(a) with coronary artery disease

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    Background: Most studies of lipid-lowering therapy for the prevention of coronary heart disease (CAD), focused on lowering low density lipoprotein cholesterol and non-HDL cholesterol. Other dyslipidemias, such as an elevated level of lipoprotein(a), also may promote atherosclerosis, establishment of relationship between lipoprotein(a) excess and risk for CAD, interventions directed toward altering these have only infrequently been evaluated in clinical trials. Objectives was to study the association of raised serum lipoprotein(a) in coronary heart disease.Methods: This study was conducted in 50 patients of CAD and 50 people as control group. All patients underwent a standard clinical examination and a blood draw for a lipid profile and lipoprotein(a) assay. Pearson chi-square test was used to assess the statistical significance.Results: Lipoprotein(a) value of more than 30 mg/dl is considered as elevated. In case group 19 patients (38%) were showed elevated lipoprotein(a) and in control group these were 9 patients (18%). p value is 0.026. It shows elevated lipoprotein(a) is statistically significant with the relative risk of 2.79.Conclusions: The association of elevated lipoprotein(a) with CAD was statistically significant. Higher lipoprotein(a) levels were observed in patient with family history of premature CAD

    Flow Secure Message in Parity Matrix

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    The goal of security is confidential ,integrity and availability to decrypt the messages.In recent years,many researchers has said about how to secure high-value data on hard disk.proposed system explains about the high grade cryptosystem one which even an attacker possessing both a copy of your encryption engine and knowledge of your operation. DOI: 10.17762/ijritcc2321-8169.15014

    Toronto extremity salvage score-patient reported outcome measures in upper extremity bone tumors treated with limb salvage surgery

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    Bone and soft tissue tumors of upper extremity are relatively uncommon than those of lower limb. Treating these patients while retaining a functional limb is quite a challenge. Along with musculoskeletal tumor society score, Toronto extremity salvage score (TESS) is most widely used patient-reported outcome measure for sarcomas of upper extremity. Retrospective analysis of patients with upper extremity bone tumors (24) treated with limb salvage surgery (20) from 2014 to 2022 was undertaken.  Mean follow-up period was 26 months and mean age was 30.2 years. Out of 20, 11 humerus cases were of tumors arising from humerus, 5 in radius and 3 in ulna. 9 patients were treated with custom mega prosthesis reconstruction, 6 with fibular free flap, 6 radius underwent simple resection and 1 curettage. Majority of the cases were giant cell tumors (8) followed by osteosarcoma (3), fibromatosis (3), aneurysmal bone cyst (2), simple bone cyst (2), 1 Ewing sarcoma and 1 metastatic bone disease. The mean TESS score of the sample population was 69.7 Most of the patients (11) rated their disability to be of moderate degree and considered themselves to be moderately disabled. The mean TESS score for CMP group was 71.1, while that of autograft reconstruction was 68.3. Despite only half the population having received CMP as a reconstructive option, nearly 40% patients with disease of forearm where the results are not so great, our study population reported a reasonably good patient reported outcome score. A dedicated physiotherapy team with tailor made exercise protocol for each patient depending on their needs can help in improving the quality of life

    Turbulent Supernova Shock Waves and the Sterile Neutrino Signature in Megaton Water Detectors

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    The signatures of sterile neutrinos in the supernova neutrino signal in megaton water Cerenkov detectors are studied. Time dependent modulation of the neutrino signal emerging from the sharp changes in the oscillation probability due to shock waves is shown to be a smoking gun for the existence of sterile neutrinos. These modulations and indeed the entire neutrino oscillation signal is found to be different for the case with just three active neutrinos and the cases where there are additional sterile species mixed with the active neutrinos. The effect of turbulence is taken into account and it is found that the effect of the shock waves, while modifed, remain significant and measurable. Supernova neutrino signals in water detectors can therefore give unambiguous proof for the existence of sterile neutrinos, the sensitivity extending beyond that for terrestial neutrino experiments. In addition the time dependent modulations in the signal due to shock waves can be used to trace the evolution of the shock wave inside the supernova.Comment: 28 pages, 11 figure

    Mg II Absorption Systems in SDSS QSO Spectra

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    We present the results of a MgII absorption-line survey using QSO spectra from the SDSS EDR. Over 1,300 doublets with rest equivalent widths greater than 0.3\AA and redshifts 0.366≤z≤2.2690.366 \le z \le 2.269 were identified and measured. We find that the λ2796\lambda2796 rest equivalent width (W0λ2796W_0^{\lambda2796}) distribution is described very well by an exponential function ∂N/∂W0λ2796=N∗W∗e−W0W∗\partial N/\partial W_0^{\lambda2796} = \frac{N^*}{W^*} e^{-\frac{W_0}{W^*}}, with N∗=1.187±0.052N^*=1.187\pm0.052 and W∗=0.702±0.017W^*=0.702\pm0.017\AA. Previously reported power law fits drastically over-predict the number of strong lines. Extrapolating our exponential fit under-predicts the number of W0≤0.3W_0 \le 0.3\AA systems, indicating a transition in dN/dW0dN/dW_0 near W0≃0.3W_0 \simeq 0.3\AA. A combination of two exponentials reproduces the observed distribution well, suggesting that MgII absorbers are the superposition of at least two physically distinct populations of absorbing clouds. We also derive a new redshift parameterization for the number density of W0λ2796≥0.3W_0^{\lambda2796} \ge 0.3\AA lines: N∗=1.001±0.132(1+z)0.226±0.170N^*=1.001\pm0.132(1+z)^{0.226\pm0.170} and W∗=0.443±0.032(1+z)0.634±0.097W^*=0.443\pm0.032(1+z)^{0.634\pm 0.097}\AA. We find that the distribution steepens with decreasing redshift, with W∗W^* decreasing from 0.80±0.040.80\pm0.04\AA at z=1.6z=1.6 to 0.59±0.020.59\pm0.02\AA at z=0.7z=0.7. The incidence of moderately strong MgII λ2796\lambda2796 lines does not show evidence for evolution with redshift. However, lines stronger than ≈2\approx 2\AA show a decrease relative to the no-evolution prediction with decreasing redshift for z≲1z \lesssim 1. The evolution is stronger for increasingly stronger lines. Since W0W_0 in saturated absorption lines is an indicator of the velocity spread of the absorbing clouds, we interpret this as an evolution in the kinematic properties of galaxies from moderate to low z.Comment: 50 pages, 26 figures, accepted for publication in Ap

    Neutrino parameters from matter effects in PeeP_{ee} at long baselines

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    We show that the earth matter effects in the νe→νe{\rm {\nu_e \to \nu_e}} survival probability can be used to cleanly determine the third leptonic mixing angle θ13\theta_{13} and the sign of the atmospheric neutrino mass squared difference, Δm312\Delta m^2_{31}, using a β\beta-beam as a νe\nu_e source.Comment: 4 pages, 4 eps figures; comments and references added, to appear in Phys. Rev.

    What can the SNO Neutral Current Rate teach us about the Solar Neutrino Anomaly

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    We investigate how the anticipated neutral current rate from SNOSNO will sharpen our understanding of the solar neutrino anomaly. Quantitative analyses are performed with representative values of this rate in the expected range of 0.8−1.20.8 - 1.2. This would provide a 5−10σ5 - 10 \sigma signal for νe\nu_e transition into a state containing an active neutrino component. Assuming this state to be purely active one can estimate both the 8B^8B neutrino flux and the νe\nu_e survival probability to a much higher precision than currently possible. Finally the measured value of the NCNC rate will have profound implications for the mass and mixing parameters of the solar neutrino oscillation solution.Comment: Brief discussion on the first NC result from SNO added; final version to be published in the MPL
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