Global

Ophthalmology is an important term of medical field, which helps to visualize various diseases and treat them accordingly. Fundus images are processed so as to treat diseases like glaucoma, vein occlusions, and diabetic retinopathy (DR), obesity, glaucoma etc. There are types of supervised and unsupervised types of algorithms used so as to segment the Fundus images. There are three types of datasets available DRIVE, STARE and CHASE_DB1. These data sets are being segmented with the help of Laplace operator. This method makes preprocessing of images by using adaptive histogram equalization by CLAHE algorithm. The first step is to extract green channel and segment this image by using Laplace operator. Thus it helps to enhance extraction of blood vessels from fundus image. The detected blood vessels and measurement of these vessel is used for diagnosis of Diabetic Retinopathy (DR) and other eye diseases.
In this paper a new full adder is proposed. The number of Transistors used in the proposed full adder is 13.Average leakage is 62% of conventional 28 transistor CMOS full adder. The leakage power reduction results in overall power reduction. The proposed full adder is evaluated by virtuoso simulation software using 45 nm technology of cadence tools.
Purpose: To update the literature regarding the computer-aided implant surgery. Material and Methods: A literature search was applied in electronic database using the key-words: “Guided surgery”, “dental implants”, “computer-aided surgery”, “stereolitographic guides”. Results: The procedure involves the use of diagnostic imaging and CAD – CAM technology with the purpose of obtaining a surgical guide, which transfers the virtual implant planning to the surgical field. The technique allows to couple the desired prosthesis into the anatomical structures in order to determine the implant positioning. Thus, the method provides greater safety during surgery, accurate knowledge about position of anatomical structures and their relationship to the future prosthesis. Besides, it allows a flapless surgery, providing a shorter surgical time and reducing the post-surgical discomfort. Conclusion: Guided surgery requires specialized knowledge and high standards of care. However, when performed in accordance with patient´s specific needs, it may represent a faster and safety procedure.
One of the main modes of other-directedness that has only been indirectly linked with anomie, and that is the technique and technology of the modern machine, both as a metaphor for mechanism in semi-conscious working states of affairs – the public life of our large and general social role as ‘one of the others’ and one of the mass, producer and consumer – but also the machine as a physical enabler, a force in the material world wherein it alleviates suffering with a view to assuaging anomie. The machine houses and promotes a new set of norms. It is never normless, although often mindless. It cannot suffer itself. It does not feel the wind chill, and though it breaks down it does not die. It represents, in its obliviousness to sorrow and to ennui, an ideal form for modern humanity. We would be as it is. Functional, able to work and nothing else, turned on and off in an instant.
This study seeks to determine the mathematical model for the transfer function characteristics of a single-input-single-output (SISO) electrical power distribution system with a view to understanding better, how the variation in input variables affects the overall output of electrical power distribution. It involved taking input-output data from a real life electrical power distribution system over a given period of four months and developing a transfer function model for the system so as to determine its operations efficiency using SPSS software. From the analysis carried out, the value of (coefficient of performance) in the month 1-2 was found to be 0.670 while the value was 1.065 in the month 3-4. The higher the value of the more efficient is the power distribution system.
This paper has explained that, the motion can be divided into two types, i.e. relative motion between two objects and circular motion unrelated to relative motion (also known as absolute motion). Time delay resulted from relative motion is referred to as relative time delay; time delay caused by circular motion is referred to as absolute time delay. Relative time delay refers to a time delay effect obtained by an observer when observing another reference system being in motion; absolute time delay refers to a real time delay of object being in motion. It is deduced that, the only way for human beings to achieve a real time delay situation is that: An observer can travel around the planet by spacecraft. The analyzed results show that, it is impossible for black hole to exist as a real matter. As a result, the time delay obtained after traveling around fixed star A1 by spacecraft shall be considered as the maximum absolute time delay obtained by human beings.
The world is undergoing a dramatic rapid transformation from isolated systems to ubiquitous Internet-based-enabled ‘things’ capable of interacting each other and generating data that can be analyzed to extract valuable information. This highly interconnected global network structure known as Internet of Things will enrich everyone’s life, increase business productivity, improve government efficiency, and the list just goes on. However, this new reality (IoT) built on the basis of Internet, contains new kind of challenges from a security and privacy perspective. Traditional security primitives cannot be directly applied to IoT technologies due to the different standards and communication stacks involved. Along with scalability and heterogeneity issues, major part of IoT infrastructure consists of resource constrained devices such as RFIDs and wireless sensor nodes. Therefore, a flexible infrastructure is required capable to deal with security and privacy issues in such a dynamic environment. This paper presents an overview of IoT, security and privacy challenges and the existing security solutions and identifying some open issues for future research.
Melkersson-Rosenthal Syndrome is a rare entity of unknown etiology, characterized by the triad of symptoms: recurrent face and / or lip swelling, cracked or scrotal tongue and peripheral facial palsy. This symptomatology is often incomplete. It usually begins in childhood and relapses are common. We report a case of a patient with MRS followed in the ENT and Neck Surgery department of the University Hospital August 20th of Casablanca.
Volatile organic compounds (VOCs) are an important class of air pollutants and even at a trace amounts; these compounds have a high potential hazard to human health due to their carcinogenic nature. In particular, highly reactive VOCs, which are reported to be toxic and also may participate in numerous reactions in the atmosphere to form secondary air pollutants including ground level ozone and secondary organic fine particles. Thus, an investigation of indoor/outdoor TVOC was conducted at selected locations in Gorakhpur in order to ascertain the contamination levels. The concentrations of TVOC were measured at two locations in the city of Gorakhpur, which covers residential and roadside areas. The samples were collected for the period of three consecutive days for indoors and outdoors, at each microenvironment. TVOC levels were measured using a portable data logging Ion Science PhoCheck+ photo-ionization detector (PID). TVOC concentration for combined indoor/outdoor air was 65.03 ppb and 161.08 ppb at residential and roadside site respectively. At residential site, the indoor and outdoor mean concentration of TVOC was 90.45 ppb and 39.62 ppb respectively. The average indoor concentration at roadside site was 173.52 ppb whereas at outdoor it was 148.68 ppb. At both the sites, the indoor TVOC levels were higher than that at outdoors.
This paper presents a model of the cosmic medium, which allows to describe the physical nature and microscopic structure of dark energy and has the macroscopic properties of both positive and negative pressure density. It is indicated that the cosmological constant Λ characterizes the elastic properties of the dark energy, and "antigravity universal law" is the law of elasticity Hooke. The evidence base is based on the results of experiments conducted in superfluid ³He-B in the pstate analogue projecting dark energy. In addition, for the construction of the resonance curves of the photoelectric effect in the near-Earth space environment, we used the results of observations obtained by space detector PAMELA, Fermi and detector AMS, installed on board the ISS.