3-D Current Density and Magnetic Field of 3-D MR Scanner Gradient Coil
Published on: 28th June, 2024
The topic of this paper is to describe the 3-D current density in the windings of a 3-D coil, which fills the volume between two coaxial cylinders at a precisely defined distance from each other, and which serves to generate a magnetic field gradient in the center of the cylinder axis. The 3-D current density is considered an unknown input quantity, which is calculated from the known gradient magnetic field output. It is an inverse problem in mathematics, where the direct problems are the calculation of unknown output quantities based on known input quantities. Fourier series expansion methods in the context of cylindrical coordinates were used to describe the 3-D current density. In that case, Bessel functions are used as development components. The current densities, at each point in space, were lined up to represent current lines. Each power line is associated with a coil winding through which a current of a certain strength flows. After that, the principle of discretization of coil windings was applied. Each winding is divided into a large number of elementary segments that were considered as current elements, which create, based on Bio-Savar's law, an elementary magnetic field. In this way, the total, continuous magnetic field is broken into many elementary components, which come from different current elements. An important result of this process is that each current element can be controlled independently by a current source. This means that the output magnetic field of the gradient can be controlled by current sources, which are the input sizes, and this is what is at the core of the topic of this paper.
Review on Forensic Analysis of Microbiota in Human
Published on: 4th July, 2024
Numerous studies relate differences in microbial communities to humans. The microbiome is fundamental for the human turn of events, invulnerability, and nourishment. The ordinary microbiota has explicit capability in supplement digestion, xenobiotic and drug digestion, upkeep of underlying trustworthiness of the stomach mucosal boundary, immunomodulation, and assurance against microorganisms. Out of nowhere, it assumes a significant part in criminology. In a few criminal examinations, such perceptible changes in the microbiome and mycobiome can decide the reason or the genuine spot of death. The microbial follows found at the crime location can likewise give obvious proof of responsibility. The point of this audit was to study the microbiome and its applications in scientific sciences and to decide the primary lines of examination that are emerging, as well as its potential commitments to the scientific field.’
The Exercise continuum and the role of Doctors
Published on: 3rd July, 2018
OCLC Number/Unique Identifier: 7795903510
Everyone can be placed somewhere on an exercise continuum with the idle at one end and the hyperactive at the other. At both extremes, health suffers. Exercise is essential to health and managing it is the responsibility of individuals but few know what they should do. Doctors seldom teach how to be healthy and act only when repair is needed.
Final solution in femoroacetabular impingement - Threaded cups in hip revision surgery 2002-2012
Published on: 23rd October, 2018
OCLC Number/Unique Identifier: 7900083791
Purpose: Here, we report the complications of endoprosthesis with threaded cups according to our application in cases of complicated acetabulum (hip revisions and femoroacetabular impingement (FAI)).
Methods: A total of 504 patients was analyzed, including 189 men and 315 women. For re-implanted patients (n = 49), the mean time to re-implantation was 6.3 years and the average age at re-implantation was 54.7 years. For censored patients (n = 455), the mean time to censoring was 5.5 years and the average age of the implant was 55.7 years. Among the patients that were censored, 77 died and 378 patients did not experience an event necessitating re-implantation.
Results: For the total study population, the Kaplan-Meier estimate of 5 year survival is 0.94 and of 10 year survival is 0.85. 90% of the implants survived 7 years, 80% of the implants survived almost 12 years and 70% of implants survived almost 15 years. Kaplan-Meier survival analysis suggests that men have higher survival than women. Age of the patient at the time of implant was not a statistically significant factor for re-implantation (p value = 0.21) but sex was (p value = 0.02). Women had 2.25 times more risk of being re-implanted than men.
Conclusions: In our case series, the failure rate, as a result of aseptic loosening, was 7.4% (n = 51). More than half the failure cases (56%) required re-implantation. Over one-third (37%) of the primary arthrosis cases, were found to be FAI, lessening the frequency of diagnosis of the former. In our clinic, the threaded cup seems to be indispensable in hip revision surgery and in treating FAI.
Experience of Anesthesiology Residents in the conduct of their Research during Residency Training at Vicente Sotto Memorial Medical Center
Published on: 26th February, 2025
Introduction: Research provides a framework for Anesthesia residents who are critical thinkers who approach clinical practice with an open mind. The goal of this study was to determine current attitudes regarding performing research during residency as well as perceived obstacles to doing so. A resident physician should be ready to face the challenges of the growing technology, tons of journals published in different portals, and increasing sophistication of the health care delivery system. Practice-based learning, systems-based practices, and medical knowledge are the vital core directly affected by strong research skill set. Methods: The study was done through a survey of all 15 current residents in Vicente Sotto Memorial Medical Center Anesthesia Resident. They answered a 13 self-administered survey, which was adopted from previous similar research. Data was collected for 1 week to give time to the busy schedule of the resident. Results: Respondents cited that the lack of time in balancing clinical and research responsibilities is the most common obstacle encountered by 86.7% of respondents. Researchers feel they have inadequate research skills and a lack of time in balancing responsibilities between family and work was among the most common answers by the respondents. 2nd prevalent barrier to research during residency was a lack of mentoring. Conclusion: The top barriers to research are lack of time and inadequate access to research mentors. These barriers can be addressed to optimize the current research environment for residents. Anesthesia residents identified several critical aspects that they believe are obstacles to research. These findings can be used by programs to overcome hurdles and increase the inclusion of research into residency training.
The effects of physiotherapy and rehabilitation on Pallister-Killian Syndrome: A case report
Published on: 20th December, 2018
OCLC Number/Unique Identifier: 7964755732
The aim of the paper is to determine the effects of physiotherapy and rehabilitation (PHTR) on a child with Pallister-Killian Syndrome (PKS). Gross Motor Function Measure (GMFM) and duration of grasping ping pong ball were the primary outcome measures which were conducted at the beginning, 12th, and 24th month. Neurodevelopmental Therapy and Sensory Integration Therapy were used as intervention methods. The most increase with around 50% was acquired in Section A of the GMFM. Duration of holding a ping pong ball gradually increased. As a result, this is the first paper presenting a PHTR shedule and its results in a child with PKS.
Practical implementation of the SWEEP-session of Stimulation-Registration in CI fitting
Published on: 11th October, 2017
OCLC Number/Unique Identifier: 7325438281
Levels of electrically evoked stapedial reflex thresholds (eESRTs) are frequently used as most comfortable levels (MCL) in cochlear implant fitting. The problem of routine one-channel-technique of reflexometry is long duration of this procedure. In order to “compress the time” we suggest method of consecutive stimulation of all electrodes of implant with simultaneous registration of stapedial reflexes-SWEEP-session. Practical implementation of the SWEEP-session is described here. This method has been successfully used in several hundred CI patients. Registration of evoked electrical stapedial reflex thresholds (eESRTs) during CI fitting is long procedure. In order to “compress the time” we suggest our SWEEP-session method. Practical implementation of this SWEEP-session is described here in accordance with the patent of Russian Federation.
Recent advances in pathophysiology and management of subglottic Hemangioma
Published on: 4th May, 2018
OCLC Number/Unique Identifier: 7814923433
Subglottic hemangioma is the most common vascular tumor of the larynx of pediatrics; in contrast, it is relatively uncommon, accounting for an estimated 1.5% of congenital laryngeal anomalies [1].
Non-force electromagnetic fields in nature and experiments on earth: Part 2
Published on: 13th July, 2020
The manifestation of non-force electromagnetic fields in nature and in experiments on Earth is interesting and important in the part that would confirm the numerous physical models that have been calculated and presented in the scientific literature [5,6,15,17].
Prediction of protein Post-Translational Modification sites: An overview
Published on: 2nd March, 2018
OCLC Number/Unique Identifier: 7355974901
Post-translational modification (PTM) refers to the covalent and enzymatic modification of proteins during or after protein biosynthesis. In the protein biosynthesis process, the ribosomal mRNA is translated into polypeptide chains, which may further undergo PTM to form the product of mature protein [1]. PTM is a common biological mechanism of both eukaryotic and prokaryotic organisms, which regulates the protein functions, the proteolytic cleavage of regulatory subunits or the degradation of entire proteins and affects all aspects of cellular life. The PTM of a protein can also determine the cell signaling state, turnover, localization, and interactions with other proteins [2]. Therefore, the analysis of proteins and their PTMs are particularly important for the study of heart disease, cancer, neurodegenerative diseases and diabetes [3,4]. Although the characterization of PTMs gets invaluable insight into the cellular functions in etiological processes, there are still challenges. Technically, the major challenges in studying PTMs are the development of specific detection and purification methods.
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