Adapting hybrid approaches for electronic medical record management and sharing using blockchain sharding

In the past few years, it is noticed that management and sharing medical records is a key step towards increasing healthcare provider connectivity and making the healthcare system more efficient. The scalability and sustainability issues confer to mismanagement of patient is record and also raised several issues in privacy and security. The study aims to suggest more efficient alternatives for Electronic Healthcare System. Scalability and privacy are the major limitations that existing systems contain so the goal of this study is to define alternatives about how parameters like scalability, usability and data protection could be achieved in an efficient manner for healthcare system. In the healthcare industry, providing accurate, thorough, and up-to-date information on patients is critical. Another feature that allows researchers to consider efficient EHR systems is rapid access to patient records for boosting efficiency and coordination. Blockchain sharding technique is utilized along with hyper-ledger protocols and Proof-of-Authority to carry out our model implementation

Design of a high accurate aircraft ground - based landing systems

The rapid increase in aviation industry requires parallel effective plans, programs and designs of systems and facilities nationwide to fulfill the increasing needs for safe air transportation. Aircraft landing remains a problem for a long time all over the world. Systems that aircraft rely on in landing are unreliable to perform a precise guidance due to many limitations such as inaccuracy , unreliability and dependency. In low visibility conditions, when pilots are unable to see the runway, the aircrafts are diverted to another airport. However, low visibility can also affect all airports in the vicinity, forcing aircrafts to land in low visibility conditions depending on Instrument Flight Rules (IFR). Aircraft approach and landing are the most hazardous portions of flight; accidents records indicate that approximately 50 percent of the accidents occur during aircraft landing. Aircraft landi ng Category III C is not yet in operation anywhere in the world. It requires landing with no visibility or runway visual range. Currently, Global Positioning System (GPS) is the main navigation system used all over the world for aircraft navigation, approach and landing. However, in aircraft approach and landing phase, the accuracy of GPS is not sufficient to perform a perfect landing due to the possibility of aircraft to be drifted out of the runway. The accuracy of GPS could be improved to 3 meter by sending correction. Improved accuracy has not been able to meet ICAO standards for aircraft automatic landing. In this paper, aircraft landing systems characteristics, performance and accuracies have been studied and compared for the purpose of assessing limitations and drawbacks. An aircraft landing system with improved performance is proposed to meet ICAO standards for all - weather aircraft landing required and recommended practices with high accuracy to perform full automatic landing for aircrafts

PAPR reduction technique for LTE OFDMA systems

Long term evolution (LTE) is the final step toward the 4th generation (4G) of radio technologies designed to increase the capacity and speed of mobile networks. LTE uses orthogonal frequency division multiple access (OFDMA) for the downlink transmission and single carrier-frequency division multiple access (SC-FDMA) for uplink. OFDMA meets the 4G requirement for spectrum flexibility and enables cost-efficient solutions for very wide carriers with high peak rates. However, the potentially large peak-to-average power ratio (PAPR) of the transmitting signals has limited its application. This high PAPR causes interference when the OFDM signals are passed through an amplifier which does not have enough linear range. In this article, we investigate a clipping based PAPR reduction method for LTE OFDMA systems. Simulation results show that the clipping method is reduced PAPR significantly which decreases as the number of clip and filtering level is increased. As a results, increase the mean transmit power, and improve the power amplifier efficiency. This comes at the outlay of complexity, efficiency as well as cost.<br /

Channel estimation scheme for 3.9G wireless communication systems using RLS algorithm

Main challenges for a terminal implementation are efficient realization of the receiver, especially for channel estimation (CE) and equalization. In this paper, training based recursive least square (RLS) channel estimator technique is presented for a long term evolution (LTE) single carrier-frequency division multiple access (SC-FDMA) wireless communication system. This CE scheme uses adaptive RLS estimator which is able to update parameters of the estimator continuously, so that knowledge of channel and noise statistics are not required. Simulation results show that the RLS CE scheme with 500 Hz Doppler frequency has 3 dB better performances compared with 1.5 kHz Doppler frequency

Comparing Symptoms of Withdrawal, Rapid Detoxi-fication and Detoxification with Clonidine in Drug Dependent Patients

Abstract Considering the fear of drug addicts from hangover symptoms and the costs of withdrawal treatment and their importance in deciding to withdraw, it is helpful to identify various ways of withdrawal and their effects. This study investigated the withdrawal symptoms of two methods of detoxification with clonidine and rapid detoxification of clonidine with naltrexone. This was a clinical trial study. Patients referred to Shahid Beheshti hospital for narcotic addiction treatment were randomly divided into two groups. Group matching was done based on entry and excluding criteria. Data were collected using a demographic questionnaire including questions on the drug abuse and the consumption method, and a questionnaire on the symptoms of opioid withdrawal. Restlessness, vomiting, feeling sick and significant decrease of diastolic blood pressure was higher in rapid detoxification method group. However, considering background variables, Spearman correlation coefficient showed significant relationship just for lacrimation. Temptation for drug consumption was lower for heavy abusers in rapid detoxification method and in general, those who had higher amount of consumption and were treated by rapid detoxification, experienced less temptation for consumption. Rapid detoxification can be the first level treatment for heavy abusers, because it reduces the temptation for drug consumption and has shorter hospitalization and, as a result, has lower cost

Low complexity MMSE based channel estimation technique for LTE OFDMA systems

Long term evolution (LTE) is designed for high speed data rate, higher spectral efficiency, and lower latency as well as high-capacity voice support. LTE uses single carrierfrequency division multiple access (SC-FDMA) scheme for the uplink transmission and orthogonal frequency division multiple access (OFDMA) in downlink. The one of the most important challenges for a terminal implementation are channel estimation (CE) and equalization. In this paper, a minimum mean square error (MMSE) based channel estimator is proposed for an OFDMA systems that can avoid the ill-conditioned least square (LS) problem with lower computational complexity. This channel estimation technique uses knowledge of channel properties to estimate the unknown channel transfer function at non-pilot subcarriers.<br /

Comparison of the Frequency and Complications of Inappropriate Antidiuretic Hormone Secretion in Patients with Septic and Aseptic Meningitis

ObjectiveDue to the high prevalence of syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH). This study was carried out to evaluate the prevalence and relevant parameters of SIADH in children with septic and aseptic memingitis hospitalized at Kashan Shahid Beheshti Hospital between 1996 and 2006.Materials &amp; MethodsThis descriptive study was conducted on 230 patients with meningitis hospitalized in the pediatric wards of Kashan Shahid Beheshti Hospital between 1996 and 2006. Relevant information (age, gender, type of meningitis, serum sodium and potassium, urine specific gravity (USG), blood sugar, blood urea nitrogen, serum creatinin, hydration condition) was collected from patients' records. Data was analyzed using Mann-Whitney and K2 tests.ResultsOut of 230 patients with meningitis, 33 had incomplete records and only 197 patients were recruited for this study. Sixty eight cases (34.5%) suffered from SIADH. It was more frequent among 1-2 year old  children.According to this research, SIADH was diagnosed in 57% of the 121 patients with hyponatremia, 58.7% of the 167 patients with USG &gt; 1.004, 74% of the 93 patients with serum osmolity &lt; 280 mOs/L and 100% of the patients with BUN &lt; 10 mg%.ConclusionDue to the high prevalence of SIADH in septic and aseptic meningitis and its complication, it is recommended to restrict fluid therapy and monitor serum sodium, urine specific gravity and other diagnostic tests for SIADH.Keywords: Hyponatremia; Meningitis; SIADH, Septic, Asepti

Masjid Sebagai Ruang Awam Komuniti Bandar: Satu Kajian Kes Di Bandar Raya George Town, Pulau Pinang

Ruang awam merupakan sutu keperluan penting kepada komuniti di bandar. Kawasan bandar yang padat menyebabkan ruang awam semakin mengecil. Peningkatan jumlah populasi bandar menyebabkan keperluan ke atas ruang awam semakin tinggi. Kajian ini meninjau kesesuaian masjid sebagai ruang awam kepada komuniti bandar. Rumah ibadat seperti Masjid, Gereja, Kuil dan Tokong merupakan ruang awam. Masjid dipilih berdasarkan kepentingannya kepada masyarakat Islam dan bilangannya yang mencukupi bagi Bandaraya George Town. Objektif kajian ini ialah untuk melihat persepsi orang ramai terhadap kemudahan ruang awam, peranan masjid dan keselesaan kemudahannya. Kajian ini juga melihat kepentingan peranan masjid sebagai ruang awam dengan lebih jelas. Kaedah kajian yang dilakukan adalah lebih memfokuskan pada persoalan borang soal selidik. Seramai 100 orang responden dipilih dalam kajian ini. Data yang diperoleh dianalisis menggunakan perisian Statistical Packages for Social Science (SPSS) versi 20.0. Dapatan kajian merumuskan masjid merupakan ruang awam yang masih tidak digunakan secara optima dan ia berpontensi untuk dianggap sebagai ruang awam komuniti bandar

Local Convexity-Preserving C

We present the smooth and visually pleasant display of 2D data when it is convex, which is contribution towards the improvements over existing methods. This improvement can be used to get the more accurate results. An attempt has been made in order to develop the local convexity-preserving interpolant for convex data using C2 rational cubic spline. It involves three families of shape parameters in its representation. Data dependent sufficient constraints are imposed on single shape parameter to conserve the inherited shape feature of data. Remaining two of these shape parameters are used for the modification of convex curve to get a visually pleasing curve according to industrial demand. The scheme is tested through several numerical examples, showing that the scheme is local, computationally economical, and visually pleasing