1,233 research outputs found

    Improved Watermarking Scheme Using Decimal Sequences

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    This paper presents watermarking algorithms using d-sequences so that the peak signal to noise ratio (PSNR) is maximized and the distortion introduced in the image due to the embedding is minimized. By exploiting the cross correlation property of decimal sequences, the concept of embedding more than one watermark in the same cover image is investigated.Comment: 7 pages, 10 figure

    Osteometric study of human femur

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    Skeleton is playing important role in various like Medicine, Forensic sciences, Anthropology etc. Estimation of sex, age, race, stature by skeleton and the presence of disease is discovered by Krogman and Iscan (1986). Sex is determined after death by skeletal remains of that individual by some forensic anthropologists with the help of pelvis, skull and long bones. The study was undertaken in 50 femurs for measuring epicondylar breadth, Neck shaft angle, transverse and vertical diameter of head. The results were the average meanepicondylar breadth was 75.6 ± 6.06mm, mean right epicondylar breadth was 73.96 ± 4.99mm and left it was 76.35 ± 7.0mm. The average mean neck shaft angle was 125.3 ± 6.50mm, mean right neck shaft angle was 124.44 ± 5.7mm and left it was 126.3 ± 7.33mm. The average mean transverse diameter of head was 37.86 ± 3.06mm, mean right transverse diameter of head was 37.74 ± 3.05mm and left it was 38.00 ± 3.13mm. The average mean vertical diameter of head was 42.24 ± 3.53mm, mean right vertical diameter of head was 41.63 ± 3.09mm and left it was 42.96 ± 3.92mm, Neck shaft angle ranges from a minimum of 106° to maximum 135° with a mean value of 125.3°. The knowledge of osteometric values is helpful to anthropological and forensic practice

    Development of Capecitabine Floating Tablet Dosage Forms for Treating Stomach Cancer

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    Objective: In the present research work, oral gastro retentive dosage forms (GRDFs) of capecitabine (CPC) were formulated using floating concept. Methods: GRDFs were formulated using hydroxypropyl methyl cellulose (HPMC K4M and K15M) as drug release retardant, sodium bicarbonate (NaHCO3) and calcium carbonate (CaCO3) as gas generating agents, and micro crystalline cellulose (MCC), dicalcium phosphate (DCP), spray dried lactose (SDL), and pre gelatinized starch (PGS) as fillers. The tablets were prepared by direct compression method and evaluated for various parameters. The GRDFs were also characterized by Fourier-transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC). Results and Discussion: All the formulations were subjected for pre and post compression parameters, shows all the data within the limits. The lag times of GRDFs has decreased significantly for formulations containing calcium carbonate when compared to sodium bicarbonate as gas generating agent. In vitro drug release studies indicate that higher polymer concentration delayed the CPC release, and the sustaining effect was in the order K4M > K15M > LVCR 100. Addition of MCC, DCP, SDL, and PGS as fillers further affected the lag time and in turn the CPC release rates. Conclusion: The formulation (F9) containing 10%w/w HPMC K4M as the release retardant, microcrystalline cellulose as filler and 20%w/w CaCO3 as gas generating agent fulfilled regulatory requirements in terms of percent drug release at the end of 24h. Keywords: Capecitabine, Gastro retentive floating tablets, floating drug delivery systems, FTIR, DSC

    A study on fracture of femur shaft treatment with intramedullary interlocking nailing

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    Background: Rigid interlocking nailing for femoral shaft fracture is ideal for use in adolescents in terms of stability of the fracture and convenience for the patient. Closed reduction and intramedullary interlocking nailing is the surgical treatment of choice for the closed shaft fractures of femur. Present study conducted to study the principles of intramedullary interlocking nailing and to assess the outcome of the patient.Methods: The present study comprises of 28 cases of fracture shaft of the femur admitted in orthopaedics wards of JJM Medical College, Davangere. Total 28 cases considered for closed intramedullary nailing.Results: In 55% cases closed intramedullary nailing given excellent healing of fracture, in 25% cases healing was good, in 10% cases it was average and 5% cases poor healing was observed.Conclusions: It is concluded that closed intramedullary interlocking nailing method given good result in treatment of shaft fractures of femur

    A New Hybrid Diffie-Hellman and Caesar Cipher Algorithm for Cryptography

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    Caesar cipher algorithm is one of the ancient algorithms. However, due to advances in technology the algorithm is now much simple to breach. This is because; each letter in the message is replaced by the same letter as specified. To raise the safety, some changes can be made. So, here we are going to use another arithmetic algorithm Diffie - Hellman's mode of changing the key to find the secret key and use simple calculations to verify data encryption. After obtaining a private shared key using the Diffie-Hellman method, depending on the operating mode with 26 keys to get the value of 26 or less, then the current character is taken with the key when the additional value of the new character. In any letter in the position of an 'x', the key first increases with an 'x' and is adjusted to get the encrypted letter. Therefore, 2 messages are repeated 2 times and the third letter has 3. This increases safety. This technology can b

    UNOPERATED TETRALOGY OF FALLOT: A CLINICOPATHOLOGIC STUDY OF A 12 MONTHS CHILD AT GOVERNMENT GENERAL HOSPITAL, KADAPA

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    Tetralogy of fallot is a congenital cardiac malformation that consists of an interventricular miscommunication. This combination of lesions occurs in three of every 10,000 live births and accounts for 7–10% of all congenital cardiac malformations. It is a condition caused by a combination of defects in all the four heart chambers that are present at birth. These defects affect the structure of heart, cause oxygen poor blood to flow out of the heart and to the rest of the body. Infants and children with TOF usually have blue tinged skin. The prevalence rate of TOF is 3.5% affecting males and females equally. Pneumonia is an infection of lungs that inflames air sacs in one or both lungs. The air sacs may fill with fluid or pus causing cough with phlegm, fever, and chills. It is most common in infants and young children and people with weakened immune system. A 12 months’ female child with this congenital heart defect and pneumonia was discussed in this report. However, most of the children with TOF need surgery, but timings may vary depending on the condition and severity. This is important to note that surgery for TOF is palliative but not curative. This report concludes that there is a need to increase awareness of TOF so as to encourage early diagnosis and therefore promotes better outcomes

    Noise Reduction In Web Data: A Learning Approach Based On Dynamic User Interests

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    One of the prominent challenges internet operators encounter is the abundance of extraneous material inside web content, hence impeding the efficient retrieval of relevant information aligned with their evolving interests. The present state of affairs. In academic research, noise is commonly defined as any extraneous data that does not contribute to the intended analysis or study objectives. This study aims to analyse the primary webpage and suggest noise reduction tools for online data. The primary emphasis is on the reduction of noise about the content and its associated factors. The arrangement or organisation of data on the internet. In this paper, including some data inside a dataset may not be universally applicable or appropriate. The web page's primary content pertains to the user's specific interests, while extraneous info is minimised. Noise can be perceived as disruptive or unwanted sound by an individual. Hence, the acquisition of noisy online data and the allocation of resources to user requests ensure not just a decrease in noise levels. There is an observed correlation between the level indicated in a user profile on the web and a reduction in the occurrence of valuable information loss. The inclusion of information consequently enhances the calibre of an online user profile. The phenomenon of noise refers to unwanted or disruptive sounds that can have negative effects on individuals and the Web Data Learning (NWDL) tool/algorithm exhibits the capacity to acquire knowledge. The proposal suggests the use of noise in web user profiles to enhance data privacy. The work that has suggested the removal of noise data in the context of dynamic user behaviour is being considered. The topic of interest is being discussed. To ascertain the efficacy of the proposed study, A presentation of an experimental design arrangement is provided. The results were achieved in contrast to the presently employed algorithms utilised in the context of noisy online data. The reducing process. The experimental findings indicate that the proposed study examines the dynamic evolution of user interest before the removal of extraneous data. The proposed study makes a significant contribution to Enhancing the calibre of an online user profile through the reduction of content volume. The elimination of noise results in the removal of beneficial information

    Smart Multi-Model Emotion Recognition System with Deep learning

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    Emotion recognition is added a new dimension to the sentiment analysis. This paper presents a multi-modal human emotion recognition web application by considering of three traits includes speech, text, facial expressions, to extract and analyze emotions of people who are giving interviews. Now a days there is a rapid development of Machine Learning, Artificial Intelligence and deep learning, this emotion recognition is getting more attention from researchers. These machines are said to be intelligent only if they are able to do human recognition or sentiment analysis. Emotion recognition helps in spam call detection, blackmailing calls, customer services, lie detectors, audience engagement, suspicious behavior. In this paper focus on facial expression analysis is carried out by using deep learning approaches with speech signals and input text

    Staggered-flux state for rectangular-lattice spin 1/2 Heisenberg antiferromagnet

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    We investigate the spin-1/2 Heisenberg model on a rectangular lattice, using the Gutzwiller projected variational wave function known as the staggered flux state. Using Monte Carlo techniques, the variational parameters and static spin-structure factor for different coupling anisotropies γ=Jy/Jx\gamma=J_y/J_x are calculated. We observe a gradual evolution of the ground state energy towards a value which is very close to the 1D estimate provided by the Bethe ansatz and a good agreement between the finite size scaling of the energies. The spin-spin correlation functions exhibit a power-law decay with varying exponents for different anisotropies. Though the lack of N\'eel order makes the staggered flux state energetically unfavorable in the symmetric case γ=1\gamma=1, it appears to capture the essence of the system close to 1D. Hence we believe that the staggered flux state provides an interesting starting point to explore the crossover from quantum disordered chains to the N\'eel ordered 2D square lattices
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