Noise Cancellation Employing Adaptive Digital Filters for Mobile Applications

The persistent improvement of the hybrid adaptive algorithms and the swift growth of signal processing chip enhanced the performance of signal processing technique exalted mobile telecommunication systems. The proposed Artificial Neural Network Hybrid Back Propagation Adaptive Algorithm (ANNHBPAA) for mobile applications exploits relationship among the pure speech signal and noise corrupted signal in order to estimate of the noise. An adaptive linear system responds for changes in its environment as it is operating. Linear networks are gets adjusted at each time step based on new input and target vectors can find weights and biases that minimize the networks sum squared error for recent input and target vectors. Networks of this kind are quite oftenly used for error cancellation, speech signal processing and control systems.    Noise in an audio signal has become major problem and hence mobile communication systems are demanding noise-free signal. In order to achieve noise-free signal various research communities have provided significant techniques. Adaptive noise cancellation (ANC) is a kind of technique which helps in estimation of un-wanted signal and removes them from corrupted signal. This paper introduces an Adaptive Filter Based Noise Cancellation System (AFNCS) that incorporates a hybrid back propagation learning for the adaptive noise cancellation in mobile applications. An extensive study has been made to explore the effects of different parameters, such as number of samples, number of filter coefficients, step size and noise level at the input on the performance of the adaptive noise cancelling system. The proposed hybrid algorithm consists all the significant features of Gradient Adaptive Lattice (GAL) and Least Mean Square (LMS) algorithms. The performance analysis of the method is performed by considering convergence complexity and bit error rate (BER) parameters along with performance analyzed with varying some parameters such as number of filter coefficients, step size, number of samples and input noise level. The outcomes suggest the errors are reduced significantly when the numbers of epochs are increased. Also incorporation of less hidden layers resulted in negligible computational delay along with effective utilization of memory. All the results have been obtained using computer simulations built on MATLAB platfor

Assessment of proximal femur anthropometry in South Indian population through cadaveric bones and radiologically correlating difference if any between other ethnic groups

Background: The morphology of the proximal femur is a topic of extensive research. The hip joint is one of the most commonly replaced joint. The era of replacement has given rise to various implants that can be used to replace the proximal femur. This present study addresses these issues involving ethnic differences in the geometry of the proximal femur in Indians and its differences between people of various ethnicity.Methods: The total population that was radiographed was 178 (n=178). There were 78 males and 100 females. The age of the participants were spaced from 25-75 years age groups. The parameters were measured.Results: The canal flare index in South-Indians was an average of 3.23 with 70% of the study population having normal CFI (3-4.5), 30% of the population having a stove pipe configuration CFI (<3). Majority of the Indian population favour a un-cemented fixation (70%).Conclusions: In summary all current implants have to be revised on population basis to fit the changing anthropometry of our proximal femur.

Ayurvedic management of Dusta Vrana w.s.r. Decubitus Ulcer : A Case Study

The wound heals by natural process but if the wound gets infected it delays the healing, converts it into Dusta Vrana (chronic ulcer). Bed sore or pressure sore are commonly seen in Non ambulatory patients like Paraplegia (Pakshagatha), Quadriplegia. Most common sites are Sacrococcygeal, Shoulder, Occipital regions due to continuous Pressure, immobilization and Malnutrition. Wound healing will be delayed and turns in to Dustavrana (chronic wound); If decubitus ulcer is not treated it may lead to Sepsis and even Osteomylitis which may end in fatal complication. In such condition Vrana Shodana (Purification) and Vranaropana (Healing) Chikitsa is better choice of treatment. In present study a case of non healing decubitus ulcer with sinus at Right hip joint was treated with mixture of Kapardika Bhasma, Yashada Bhasma along with Jathyadi Gritha plugging into the sinus showed effective in treating pressure sores as it possess the properties of Vrana Shodhana and Ropana. Hence this treatment is effective in the management of decubitus ulcer

Abnormal modulation of atmospheric parameters during the tsunami of 2004

This paper discusses the abnormal changes in weather elements observed at a tropical mountain location and a coastal station in India. Abnormal changes were noticed in the atmospheric parameters at a time close to the occurrence of tsunami on the Indian coasts due to high magnitude earthquakes in the Sumatra region on 26 December 2004. Close to the time of this earthquake occurrence, uncharacteristic and large magnitude changes in weather elements were recorded at Braemore (8o45â²N, 77o05â²E, 360 m amsl), a mountain field station at Western Ghats. Abnormal changes were also recorded at Minambakkam (13oN, 80o18â²E, 16 m SLP), close to eastern coastal belts. In the Braemore field station, simultaneous changes were observed in the atmospheric parameters; decrease in pressure by 0.6 hPa, increase in relative humidity by 30 and a prominent reduction in air temperature by more than 3oC on the day of tsunami. Also, unusually the relative humidity did not reach 100 on the previous night. However, in the Minambakkam station, the relative humidity increased by 10 associated with a sharp decrease in temperature by about 2.5oC. The changes in both the stations occurred almost at the same time and duration. Therefore, it may be concluded that these changes are associated with the high magnitude earthquake and subsequent tsunami

Level of evidence used in recommendations by the National Comprehensive Cancer Network (NCCN) guidelines beyond Food and Drug Administration approvals.

BackgroundA previous analysis of 113 National Comprehensive Cancer Network® (NCCN®) recommendations reported that NCCN frequently recommends beyond Food and Drug Administration (FDA)-approved indications (44 off-label recommendations) and claimed that the evidence for these recommendations was weak.MethodsIn order to determine the strength of the evidence, we carried out an in-depth re-analysis of the 44 off-label recommendations listed in the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®).ResultsOf the 44 off-label recommendations, 14 were later approved by the FDA and/or are supported by randomized controlled trial (RCT) data. In addition, 13 recommendations were either very minor extrapolations from the FDA label (n = 8) or were actually on-label (n = 5). Of the 17 remaining extrapolations, 8 were for mechanism-based agents applied in rare cancers or subsets with few available treatment options (median response rate = 43%), 7 were based on non-RCT data showing significant efficacy (>50% response rates), and 2 were later removed from the NCCN Guidelines because newer therapies with better activity and/or safety became available.ConclusionOff-label drug use is a frequent component of care for patients with cancer in the United States. Our findings indicate that when the NCCN recommends beyond the FDA-approved indications, the strength of the evidence supporting such recommendations is robust, with a significant subset of these drugs later becoming FDA approved or supported by RCT. Recommendations without RCT data are often for mechanism-based drugs with high response rates in rare cancers or subsets without effective therapies

EFFECTIVENESS OF AUTOGENIC TRAINING ON REDUCING ANXIETY DISORDERS: A COMPREHENSIVE REVIEW AND META-ANALYSIS

Background: Autogenic training (AT) is a relaxation technique that has garnered attention for its potential to reduce anxiety and improve psychological well-being. Objectives: This study aims to synthesize the findings from a diverse range of studies investigating the relationship between autogenic training and anxiety disorder across different populations and settings. Methods: A comprehensive review of 162 studies, including randomised controlled trials (RCTs), non-randomized controlled trials (N-RCTs), surveys, and meta-analysis, was conducted out of these 29 studies were selected which is directly related to the objectives of the studies. Participants in the studies had conditions such as cancer patients, bulimia nervosa, stroke survivors, coronary angioplasty, nursing students, healthy volunteers, athletes, and so on. Anxiety levels were measured before and after the AT intervention using a variety of anxiety assessment scales, including the State Trait Anxiety Inventory (STAI) and the Hospital Anxiety and Depression Scale (HADS). The formats, duration, and delivery of the interventions varied, with some studies utilising guided sessions by professionals and other self-administered practises. Results: The combined findings of these studies revealed consistent trends in the beneficial effects of autogenic training on anxiety reduction. AT was found to be effective in reducing anxiety symptoms across a wide range of populations and settings. Following AT interventions, participants reported reduced anxiety, improved mood states, and improved coping mechanisms. AT was found to be superior to no treatment or a comparable intervention in a number of cases. Conclusion: The body of evidence supports autogenic training as a non-pharmacological approach to reducing anxiety and improving psychological well-being. Despite differences in methodology and participant profiles, the studies show that AT has a positive impact on a wide range of populations. The findings merit further investigation and highlight AT's potential contribution to anxiety management strategies.  Article visualizations

Metronidazole removal in powder-activated carbon and concrete-containing graphene adsorption systems: Estimation of kinetic, equilibrium and thermodynamic parameters and optimization of adsorption by a central composite design

© 2017 Taylor & Francis Group, LLC. Metronidazole (MNZ) removal by two adsorbents, i.e., concrete-containing graphene (CG) and powder-activated carbon (PAC), was investigated via batch-mode experiments and the outcomes were used to analyze the kinetics, equilibrium and thermodynamics of MNZ adsorption. MNZ sorption on CG and PAC has followed the pseudo-second-order kinetic model, and the thermodynamic parameters revealed that MNZ adsorption was spontaneous on PAC and non-spontaneous on CG. Subsequently, two-parameter isotherm models, i.e., Langmuir, Freundlich, Temkin, Dubinin–Radushkevich and Elovich models, were applied to evaluate the MNZ adsorption capacity. The maximum MNZ adsorption capacities (qm) of PAC and CG were found to be between 25.5–32.8 mg/g and 0.41–0.002 mg/g, respectively. Subsequently, the effects of pH, temperature and adsorbent dosage on MNZ adsorption were evaluated by a central composite design (CCD) approach. The CCD experiments have pointed out the complete removal of MNZ at a much lower PAC dosage by increasing the system temperature (i.e., from 20°C to 40°C). On the other hand, a desorption experiment has shown 3.5% and 1.7% MNZ removal from the surface of PAC and CG, respectively, which was insignificant compared to the sorbed MNZ on the surface by adsorption. The overall findings indicate that PAC and CG with higher graphene content could be useful in MNZ removal from aqueous systems

A Case Report on Siraja Granthi

Siraja Granthi is one among the Granthi Roga described in various Ayurvedic classics. It denotes a pathological condition characterised by an elevated, quickly developing and round swelling of veins, which are non pulsating and painless. Symptomatologies of Siraja Granthi indicate the correlation towards the varicose veins. Ayurvedic management has multiple time tested modalities of treatment such as external application of Sahacharadi Taila, internal Basti and Para surgical procedure such as Raktamokshana,for the management of Siraja Granthi. A hypothesis was made that, whether Raktamokshana by Siravyadha method which is comparatively safe, has extended systemic action quoted to be Ardha Chikitsa and can be employed in patients with Siraja Granthi / varicose veins. Case Presentation: A 39 year old male patient visited OPD of Shalya Tantra, GAMC, Bengaluru, who had presented with complaint of dull aching pain which aggravates specially by the end of the day and dilated, engorged veins over right lower limb for about 2 years associated with gradual onset of mild edema around the right ankle, discoloration and itching for last 4 months. It was planned to treat the patient with Raktamokshana by Siravyadha 4 sittings at an interval of 7 days and Sahacharadi Kashaya 15 ml Bid given internally for 28 days. Conclusion: Raktamokshana (Siravyadha) line of treatment was found to be beneficial in relieving pain, swelling, itching and discoloration around the affected regions of varicose veins

AN EMPIRICAL STUDY ON ANXIETY OUTCOMES DURING CRITICAL COMPETITIVE SITUATION OF TRIBAL AND NON-TRIBAL SOCCER PLAYERS

Background: In sports, success and failure are invariably correlated with physiological and psychological markers. Objectives: The aim of the research is to assess the intensity and direction of anxiety fluctuations experienced by tribal and non-tribal soccer players in Tripura. Materials and Methods: A modified version of the Mental Readiness Form-Likert (MRF-2) with the use of the retrospective recall method was completed by soccer players (N-200). Results: According to the ANOVA findings, while somatic anxiety in both groups varies during the match from a moderate to high level, cognitive anxiety remains largely constant in a worried state. The findings also showed that self-confidence makes a significant difference in both groups' ability to execute soccer skills. Conclusion: The study concludes that individual differences in how anxiety is perceived and how stressful game circumstances are handled affect how well athletes perform.  Article visualizations

EFFECT OF 12 WEEKS SAQ AND CIRCUIT TRAINING ON DRIBBLING AND SHOOTING ABILITY OF SOCCER PLAYER

The research aims to find out the effect of 12 weeks SAQ and Circuit Training on skill ability of soccer players. The subjects were 30 males under 19 national level players. The selected players were divided into two different groups of SAQ and circuit group, consisting of 15 players each. Proper consent was taken from all the players and baseline data were collected before starting the training program. After the baseline collection, the players underwent the treatment for 12 weeks SAQ and Circuit Training for one hour each day for four days a week. The significant changes were found from baseline to post treatment in each player on Skill ability. The significant increase in shooting and dribbling were observed. The results indicate SAQ and Circuit Training program is an effective training program for soccer players to enhance their shooting and dribbling ability.  Article visualizations