88 research outputs found
The impact of high-normal blood pressure on left ventricular mechanics: A three-dimensional and speckle tracking echocardiography study
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Introducing Mixed Reality for Clinical Uses
No full textThe advent of mixed reality (MR) has revolutionized human activities on a daily basis, striving for augmenting professional and social interactions at all levels. In medicine, MR tools have been developed and tested at an increasing rate over the years, playing a promising role in assisting physicians while improving patient care. In this chapter, the authors present their initial experience in introducing different MR algorithms in routine clinical practice from their implementation in several neurosurgical procedures to their use during the COVID-19 pandemic. A general summary of the current literature on MR in medicine has also been reported
Hierarchical structuring of psychopathological dimensions in youth : current progress and future steps with the Hierarchical Taxonomy of Psychopathology (HiTOP)
No full textOver the past two decades, it has become clear that psychopathology exists on continuous spectra organized hierarchically from broad, general symptom dimensions to more specific ones. This structure is best represented by the Hierarchical Taxonomy of Psychopathology (HiTOP) framework that incorporates individual signs, symptoms, and behaviors at its most specific level while encompassing higher-order dimensions at its broadest level. This commentary gives an overview of studies that evaluated higher-order dimensions of psychopathology and their alignment with the HiTOP framework. Studies consistently support the alignment of youth psychopathology with the HiTOP framework, particularly its general dimension of psychopathology and the broad internalizing and externalizing spectrum. The model also identifies distinct, lower-level dimensions such as fear, affectivity, antagonism, and attention problems. This hierarchical structure is evident across the entire age span but with specific makeup of dimensions appearing to differ between children and adolescents. Rapidly gaining momentum, current evidence indicates HiTOP’s effectiveness in conceptualizing youth mental health. Future studies should focus on exploring the HiTOP structure across different ages and populations, testing its real-world generalizability, selecting the most appropriate assessment tools, and understanding how the framework applies to youth from diverse societies and cultures. CC BY 4.0© The Author(s) 2024.Correspondence Address: D. Stevanovic; Clinic for Neurology and Psychiatry for Children and Youth, Belgrade, Serbia; email: [email protected] funding received.</p
Sediment and mercury distribution in the Dow Wetlands, San Francisco Bay-Delta
No full textThe main goal of this study was to assess distribution of sediment sizes and mercury concentrations in the vicinity of Dow Wetlands area and to correlate distribution of sediment sizes and mercury concentrations to different types of depositional environments in this area. The area of study is located to the north of the town of Antioch. Sediment samples were collected from the following sites in the Bay Delta: Dow Wetlands, Brown Island, Sherman Island, Antioch Marina, and Big Break Bay. Sampling was performed in August 2003 and November 2004. Sediment samples were collected both from shore and from a boat using handheld coring devices and an Eckman grab sampler from the upper 10 cm of sediments. The grain size analyses were performed at Moss Landing Marine Laboratory using a laser diffraction grain size analyzer Beckman Coulter Model LS 13 320, and by pipette method at the Department of Geological Sciences at California State University East Bay. The grain size distribution was related to distribution of total mercury concentration. The statistical parameters (mean size, standard deviation, skewness, and kurtosis) were calculated using the method of moment. The samples show characteristics of multi-source (poorly sorted) sediments with pronounced skewness and kurtosis, or large deviation from normal distribution curves. The curves derived from grain size distributions are bimodal to polymodal, which could mean that samples consist of two or more subpopulations with different means and standard deviations. The average size of all samples is approximately 103 μm, which is in the range of very fine sand. The majority of samples are extremely leptokurtic and strongly fine skewed. They have peaks of values within the range of fine sand or coarse silt with significant amounts of fines (silt and clay). The data suggest that samples with larger specific surface areas have higher mercury concentrations due to the increased amount of fine fractions, particularly clay. The average mercury concentration at the area of study is 385 ppb. The highest concentration of mercury occurred in the Dow Wetlands at location S-30 (1929 ppb), which exceeds the Total Maximum Daily Load target for mercury in sediments by almost 10 times. There are three different depositional types of environments in the area of study: the open channel (sandy bottoms with traces of fines and low mercury concentrations), stream banks (sandy and silty bottoms with more clay and higher mercury concentrations), and enclosed areas with low current velocities (dominant fine fractions, particularly clay, and highest mercury concentrations). In general, the data suggest that mercury concentrations are higher in areas with denser vegetation, low water currents, dominant fine sediment fractions, and away from open water
The Euler–Riemann zeta function in some series formulae and its values at odd integer points
No full text© 2017 Elsevier Inc. The paper presents formulae for certain series involving the Riemann zeta function. These formulae are generalizations, in a natural way, of well known formulae, originating from Leonhard Euler. Formulae that existed only for initial values n=0,1 are now found for every natural n. Relevant connections with various known results are also pointed out
Thoracic electrical bioimpedance theory and clinical possibilities in perioperative medicine
No full textThis article is a short review of thoracic electrical bioimpedance (TEB) theory and clinical capabilities. Cardiac output measurement is used primarily to guide therapy in complex, critically ill patients. Thoracic electrical bioimpedance is one of several noninvasive techniques that have been investigated to measure cardiac output and other hemodynamic parameters. Opinions in current literature continue to be conflicting as to the utility of thoracic electrical bioimpedance to that purpose. There is a limited number of good designed studies but they imply TEB is an accurate and reliable noninvasive method for determining cardiac output/cardiac index and it would be valuable for patients and circumstances in which intracardiac pressures and mixed venous blood samples are not necessary
New legislation on juveniles: Importance of alternatives to institutional treatment (in the light of the offender’s reintegration and victim’s empowerment)
No full textIn this paper the author denotes some of the new legal provisions contained in the Law on juvenile offenders and criminal protection of juveniles of the Republic of Serbia, in the light of both the reintegration of juvenile offenders and future more active role of a victim of crime committed by a juvenile offender - the role that would contribute to victim’s empowerment. Likewise, the author points out the importance of alternative sanctions, i.e. procedures and measures that should enable diversion from the classic criminal procedure, or its suspension. The article signifies the importance of noncustodial measures as alternatives to institutional treatment, in terms of the new provisions contained in the Law
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