scholarly journals Systematic Research on Measuring Acceleration of Gravity by Laser Interferometry

2021 ◽  
Vol 1982 (1) ◽  
pp. 012146
Author(s):  
Chun Dang ◽  
Jing Li ◽  
Jie Tang
Keyword(s):  
Laser Interferometry ◽  
Systematic Research ◽  
Acceleration Of Gravity

What Have We Learned From Physiological Approaches to Characterizing Dysarthria and Other Speech Production Disorders?

2010 ◽  
Vol 20 (2) ◽  
pp. 37-46
Author(s):  
Nicole M. Etter
Keyword(s):  
Speech Production ◽  
Speech Disorders ◽  
Research Literature ◽  
Systematic Research ◽  
Physiological Measures ◽  
Validity And Reliability ◽  
Assessment Measures ◽  
Perceptual Assessment ◽  
Perceptual Characteristics ◽  
Diagnostic Resolution

Traditionally, speech-language pathologists (SLP) have been trained to develop interventions based on a select number of perceptual characteristics of speech without or through minimal use of objective instrumental and physiologic assessment measures of the underlying articulatory subsystems. While indirect physiological assumptions can be made from perceptual assessment measures, the validity and reliability of those assumptions are tenuous at best. Considering that neurological damage will result in various degrees of aberrant speech physiology, the need for physiologic assessments appears highly warranted. In this context, do existing physiological measures found in the research literature have sufficient diagnostic resolution to provide distinct and differential data within and between etiological classifications of speech disorders and versus healthy controls? The goals of this paper are (a) to describe various physiological and movement-related techniques available to objectively study various dysarthrias and speech production disorders and (b) to develop an appreciation for the need for increased systematic research to better define physiologic features of dysarthria and speech production disorders and their relation to know perceptual characteristics.

The Embittered Mind

2016 ◽  
Vol 37 (4) ◽  
pp. 213-222 ◽  
Author(s):  
Hansjörg Znoj ◽  
Sandra Abegglen ◽  
Ulrike Buchkremer ◽  
Michael Linden
Keyword(s):  
Emotional Reaction ◽  
Control Group ◽  
Systematic Research ◽  
Roc Curve Analysis ◽  
Confirmatory Factor Analyses ◽  
Receiver Operating Characteristic Curves ◽  
Confirmatory Factor ◽  
Different Dimensions ◽  
First Time ◽  
Common Understanding

Abstract. There is a growing interest in embitterment as psychological concept. However, little systematic research has been conducted to characterize this emotional reaction. Still, there is an ongoing debate about the distinctiveness of embitterment and its dimensions. Additionally, a categorical and a dimensional perspective on embitterment have been developed independently over the last decade. The present study investigates the dimensions of embitterment by bringing these two different approaches together, for the first time. The Bern Embitterment Inventory (BEI) was given to 49 patients diagnosed with “Posttraumatic Embitterment Disorder (PTED)” and a matched control group of 49 patients with psychological disorders with other dominant emotional dysregulations. The ability to discriminate between the two groups was assessed by t-tests and Receiver Operating Characteristic Curves (ROC curve analysis). PTED patients scored significantly higher on the BEI than the patients of the control group. ROC analyses indicated diagnostic accuracy of the inventory. Further, we conducted Confirmatory Factor Analyses (CFA) to examine the different dimensions of embitterment and their relations. As a result, we found four characteristic dimensions of embitterment, namely disappointment, lack of acknowledge, pessimism, and misanthropy. In general, our findings showed a common understanding of embitterment as a unique but multidimensional emotional reaction to distressful life-events.

Collections of Memory Institutions: New Trends for Research

2012 ◽  
Vol 2 ◽  
pp. 9-18
Author(s):  
Arvydas Pacevičius
Keyword(s):  
Cultural Theory ◽  
Interdisciplinary Approach ◽  
Frame Of Reference ◽  
The Other ◽  
Systematic Research ◽  
Library History ◽  
Modern Library ◽  
Research Paradigms ◽  
Theoretical Perspectives ◽  
New Research

The publication features information on research done during the Bibliotheca Lituana project. In particular the focus is on collections of memory institutions, new perspectives on library and other memory institution, i.e. archives, museums, research. Modern library history has adopted relevant theoretical perspectives from social and cultural theory. Currently these perspectives incorporate not only the activities and collections of the aforementioned institutions but also the more widely interpreted information infrastructure, that do not have libraries as their main frame of reference. Problems faced publishing archival sources are also examined. It was determined that insufficient attention is given to research and publication of old catalogues, inventories and book listings. On the other hand a unified system and methodology for publishing of the aforementioned sources does not exist. We come to a conclusion that through new research paradigms, an interdisciplinary approach and change of thought in the archival, librarian and museology communities, we can start systematic research of libraries and other memory institutions. Their results would complement the pages of the continued Bibliotheca Lituana publications.

Perceived Social Support and Resilience among Orphans: A Systematic Review

2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Syed Najmah Jameel ◽  
Shawkat Ahmad Shah ◽  
Showkat Ahmad Ganaie
Keyword(s):  
Social Support ◽  
Systematic Review ◽  
Perceived Social Support ◽  
Research Problem ◽  
Research Process ◽  
Research Review ◽  
Systematic Research ◽  
Review Of Literature ◽  
Major Objective ◽  
Systematic Identification

The present study is based on a systematic research review. The review of literature is an important component of the research process and should be carried out in an orderly manner. It is also known as the back bone of research study. It involves a systematic identification, location and analysis of documents containing information related to the research problem. The purpose of reviewing literature is to determine what has already done by the scientific community related to the research problem and to gain an impression regarding different aspects of the topic understudy. The major objective of the current study is to conduct a systematic review on Perceived social support and resilience among orphans. To go ahead with this goal, it was very important to collect the literature on; (A). Orphans (B). Perceived social support among orphans. (C). Resilience among orphans.

Content and composition of phospholipids, fatty acids and sterols in commercial natural phospholipid excipients

2020 ◽  
Vol 16 ◽  
Author(s):  
Luxia Zheng ◽  
Xiong Shen ◽  
Yingchun Wang ◽  
Jian Liang ◽  
Mingming Xu ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Cluster Analysis ◽  
Fatty Acid ◽  
High Performance ◽  
Comprehensive Evaluation ◽  
Phospholipid Fatty Acid ◽  
Egg Yolk ◽  
Systematic Research ◽  
Manufacturing Enterprises ◽  
The Many

Background: Phospholipids are widely used in food and pharmaceutical industry as functional excipients. In spite of the many analytical methods reported, there are very limited reports concerning systematic research and comparison of phospholipid excipients. Objective: To present a comprehensive evaluation of commercial natural phospholipid excipients (CNPEs). Methods: Seventeen batches of CNPEs from five manufacturing enterprises, isolated either from soybean or egg yolk, were investigated. The content and composition of phospholipids, fatty acids and sterols as a whole were considered as the evaluative index of CNPEs. Eight kinds of phospholipids were determined by supercritical fluid chromatography (SFC), twenty-one kinds of fatty acids were determined by gas chromatography (GC) after boron trifluoride-methanol derivatization, and nine kinds of sterols were determined by high performance liquid chromatography (HPLC) after separation and derivatization of the unsaponifiable matter. Cluster analysis was employed for classification and identification of the CNPEs. Results: The results showed that each kind of CNPEs had its characteristic content and composition of phospholipids, fatty acids and sterols. Seventeen batches of samples were divided into eight groups in cluster analysis. CNPEs of the same type from different source (soybean or egg yolk) or enterprises presented different content and composition of phospholipids, fatty acids and sterols. Conclusion: Each type of CNPEs had its characteristic content and composition of phospholipid, fatty acid and sterol. The compositions of phospholipid, fatty acid and sterol as a whole can be applied as an indicator of the quality and characteristics for CNPEs.

Anatomy, Physiology and Pathophysiology of Haemorrhoids

2020 ◽  
Vol 15 ◽  
Author(s):  
Francesco Pata ◽  
Alessandro Sgrò ◽  
Francesco Ferrara ◽  
Vincenzo Vigorita ◽  
Gaetano Gallo ◽  
...  
Keyword(s):  
Anal Canal ◽  
Dentate Line ◽  
Cochrane Library ◽  
Systematic Research ◽  
Literature Searching ◽  
Patient History ◽  
Haemorrhoidal Disease ◽  
Faecal Continence ◽  
Vascular Component ◽  
Key Events

Background: Haemorrhoidal disease (HD) is a frequent anal disorder and one of the most common findings identified at colorectal clinic. This article aims to provide an overview of the anatomy, physiology and pathophysiology of haemorrhoids and haemorrhoidal disease. Introduction: Internal haemorrhoids are vascular cushions located in the anal canal, above the dentate line and covered by columnar epithelium. They contribute to the faecal continence and to the sensitivity of the anal canal. The enlargement and/or sliding of haemorrhoidal tissue produce symptoms and complications, the so-called haemorrhoidal disease. Method: A systematic research was realized, looking at the best evidence in literature , searching PubMed, Embase, Cochrane library and most renowned text of colorectal surgery from January 1980 to January 2020. Result: Aetiology and pathophysiology of HD are still controversial, but multifactorial. Disruption of stromal scaffolding, enlargement of vascular component, elevated anal pressure and rectal redundancy represent key events in the development and complications of the disease. Local inflammation may play also a role. Goligher’s classification remains the most widely used. A careful patient history and examination are paramount to diagnose HD, excluding other anal or colonic pathologies. Conclusion: Several aspects of etiopathogenesis and pathophysiology remain controversial. Further studies are needed to obtain a better understanding of the disease.

Phytoceuticals in aniseeds: a practical approach for isolation and identification

2016 ◽  
Vol 5 (01) ◽  
pp. 4701
Author(s):  
Shobha R. I. ◽  
Andallu B.
Keyword(s):  
Chronic Diseases ◽  
Column Chromatography ◽  
High Performance ◽  
Methanolic Extract ◽  
Analytical Techniques ◽  
Therapeutic Agents ◽  
Systematic Research ◽  
Isolation And Identification ◽  
Traditional System ◽  
Pharmacologically Active

Nature has provided mankind with a broad and structurally diverse array of pharmacologically active chemical compounds, phytoceuticals, which have proved to be indispensable for the cure of chronic diseases or as lead structures for novel therapeutic agents. Almost, 70% of modern medicines in India have been developed from plants used in the traditional system of medicine. With the technological advances and the development of more sophisticated isolation and analytical techniques, there is great scope for further systematic research to screen and isolate many more phytoceuticals which might be more effective/as effective as synthetic drugs and thereby assess their potential in protecting against chronic diseases. The present investigation is aimed at isolation and identification of phytoceuticals in a spice, aniseed (Pimpinella anisum L), therapeutically less-exploited and widely used only for culinary purpose, using analytical techniques viz. column chromatography, high performance thin layer chromatography (HPTLC.) and nuclear magnetic resonance spectrometry. Among all the solvent fractions of methanolic extract tested, methanolic extract and ethyl acetate fraction possessed highest amounts of bioactive compounds viz. phenolics, flavonoids, flavonols which was confirmed by qualitative, quantitative and HPTLC. analyses. Spectral analysis using NMR. of one of the sub-fractions of aniseeds obtained by column chromatography, revealed the presence of a glycosylated flavone, luteolin-6C-glucoside in aniseeds.  The present study revealed aniseeds to be a great source of bioactive phytoceuticals which can be novel candidates for development of new therapeutic agents.

Hydrogeology correction in the gravitational field from satellite data

2018 ◽  
Vol 931 (1) ◽  
pp. 2-7
Author(s):  
V.D. Jushkin ◽  
L.V. Zotov ◽  
O.A. Khrapenko
Keyword(s):  
Gravitational Field ◽  
Oil And Gas ◽  
Repeated Measurements ◽  
Geological Factors ◽  
Grace Satellite ◽  
Gas Pumping ◽  
Acceleration Of Gravity ◽  
Determination Of Parameters ◽  
Gravity Acceleration

The results of repeated measurements of the acceleration of gravity by the Russian absolute ballistic field gravimeter GABL-M on points of oil and gas deposits in the permafrost over a five year period are presented. The changes of gravity acceleration by the absolute gravimeter and GRACE satellite were compared. The results of comparisons of differences gravity acceleration by ballistic gravimeter GABL-M and relative Canadian gravimeters CG5 were [i]shown. The errors in determination of parameters of the gravitational field ballistic gravimeter GABL-M and CG5 gravimeters group were presented. The method of measurement with the gravimeter GABL-M and the method of determining the vertical gradients relative CG5 gravity meters was described. The necessity of introducing corrections of hydrogeology is caused by influence of hydro geological factors on the gravitational field in the permafrost. They are comparable with the values of the field change in the result of gas pumping.

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