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

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

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

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

Inter-subunit coupling in PyrR pyrimidine synthase attenuator protein oligomers

大規模計算機システム利用者研究報

Flow Secure Message in Parity Matrix

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

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

Ewing sarcoma: a tumor with an uncanny predilection for uncommon sites

Ewing sarcoma is one of the most common bone tumors diagnosed in pediatric age group second only to osteosarcoma. The tumor is known to involve most commonly pelvic bones and long bones while extra-skeletal Ewing sarcoma accounts for 15%. Ewing sarcoma of other sites like scapula, clavicle, hands, and feet are quite rare, accounting for only 3-5%. To determine the epidemiological profile of Ewing sarcoma of unusual sites treated in our department including age at diagnosis, site of origin and mode of management along with survival data. Details of Ewing sarcoma patients reported our department in last 9 years were collected and data was analysed. We report a total of 20 cases of Ewing sarcoma in last 9 years with 4 (20%) extra skeletal Ewing sarcoma arising from soft tissues of extremities and 30% from rare sites (3 scapula, 1 clavicle, 1 phalanx, 1 calcaneum). All patients were operated after 4-7 cycles of chemotherapy with 66% limb salvage rate. With an average necrosis of 40%, with a median follow up of 36 months, the overall survival of the group was found to be 77.7%. Ewing sarcoma is one of the rare tumors of bone and soft tissue with the predilection for unusual sites, with reasonable survival outcomes in localized disease. Though scapula, clavicle, hands and feet are rare sites for Ewing sarcoma, they accounted for 30% in our department, possibly because of the referral patterns

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

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

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 $0.366 \le z \le 2.269$ were identified and measured. We find that the $\lambda2796$ rest equivalent width ($W_0^{\lambda2796}$) distribution is described very well by an exponential function $\partial N/\partial W_0^{\lambda2796} = \frac{N^*}{W^*} e^{-\frac{W_0}{W^*}}$, with $N^*=1.187\pm0.052$ and $W^*=0.702\pm0.017$\AA. Previously reported power law fits drastically over-predict the number of strong lines. Extrapolating our exponential fit under-predicts the number of $W_0 \le 0.3$\AA systems, indicating a transition in $dN/dW_0$ near $W_0 \simeq 0.3$\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 $W_0^{\lambda2796} \ge 0.3$\AA lines: $N^*=1.001\pm0.132(1+z)^{0.226\pm0.170}$ and $W^*=0.443\pm0.032(1+z)^{0.634\pm 0.097}$\AA. We find that the distribution steepens with decreasing redshift, with $W^*$ decreasing from $0.80\pm0.04$\AA at $z=1.6$ to $0.59\pm0.02$\AA at $z=0.7$. The incidence of moderately strong MgII $\lambda2796$ lines does not show evidence for evolution with redshift. However, lines stronger than $\approx 2$\AA show a decrease relative to the no-evolution prediction with decreasing redshift for $z \lesssim 1$. The evolution is stronger for increasingly stronger lines. Since $W_0$ 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

Detecting Inception of Hydrodynamic Cavitation Noise of Ships using Quadratic Phase Coupling Index as an Indicator

There is ever increasing interest in underwater noise control onboard ships as part of concerted efforts to reduce ship’s radiated noise. Reduction of radiated noise is considered important as it will affect the performance of hydro-acoustic systems such as sonars, echo sounders, towed systems, etc. Out of three major sources of noise onboard ships, viz., machinery, propeller, and hydrodynamic noise, propeller noise is considered a major source beyond certain speed at which propellers cavitate produces cavitation noise. The inception speed of propeller cavitation is generally accompanied by sudden increase in radiated noise level of 8-15 dB when measured using a hydrophone placed on the seabed. This paper attempts to establish the concept of quadratic phase coupling index as an indicator to detect inception of cavitation of ship propellers. This concept was tested on actual ship radiated noise data measured at sea for evaluating its effectiveness.Defence Science Journal, Vol. 65, No. 1, January 2015, pp.53-62, DOI:http://dx.doi.org/10.14429/dsj.65.788