Morfologia: Algumas notas sobre o conceito de morfema e os modelos estruturais de análise morfólogia

2016 ◽  
Vol 6 (11) ◽  
pp. 32
Author(s):  
Marco Antônio De Oliveira
Keyword(s):  
Morphological Analysis ◽  
Structural Morphology ◽  
The Common

Resumo: Este texto procura apresentar uma orientação ao estudo do desenvolvimento da morfologia estrutural americana, desde Bloomfield (1926) até koutsoudas (1963), focalizando principalmente a evolução do conceito de morfema. São abordados aqui os principais modelos de análise morfológica (i.e., Item e arranjo, Item e Processo e o Método do Traço Comum) e são discutidas as suas diferenças no que se refere à segmentação, ao agrupamento e à alternância morfofonêmica.Abstract: This text is an orientation to the study of the development of American Structural Morphology, ranging from Bloomfield (1926) to koutsoudas (1963). One of the main points of this text has to do with the notion of morpheme and the ways in which it has changed through time. Also, I present here the main models for morphological analysis (i.c., Item and Arrangement, Item and Process and the Common Feature Method) and I discuss their differences in terms of segmentation, grouping and morphophonemic alternation.

scholarly journals Morphological Analysis of the Neologisms during the COVID-19 Pandemic

2020 ◽  
Vol 2 (3) ◽  
pp. 01-07
Author(s):  
Katherine B. Akut
Keyword(s):  
Morphological Analysis ◽  
Textual Analysis ◽  
Compound Structure ◽  
Interesting Phenomenon ◽  
Qualitative Design ◽  
Morphological Process ◽  
New Words ◽  
Corona Virus ◽  
The Common ◽  
Morphological Processes

The emergence of neologisms has always been an interesting phenomenon as it demonstrates the dynamism of language. This study intends to determine the neologisms during COVID-19 Pandemic through a morphological analysis. This study argues that the neologisms that emerge during the COVID-19 pandemic reveal the morphological processes that formed the new words. It further claims that the morphemic structures of the neologisms follow the general structures of English vocabulary. This study utilizes the descriptive-qualitative design in analyzing the morphological structures of the neologisms during the COVID-19 pandemic. Specifically, this study involves textual analysis to determine the morphological processes that encompass the formation of new words. The data used in analyzing the morphological structures of COVID-19-related neologisms are five (5) Internet articles that introduce the new terms created because of the corona virus outbreak. These articles were published in the months of March, April and May 2020.Findings reveal that most of the neologisms are nouns. The common morphological process involved in the formation of new words are compounding, blending and affixation. Moreover, majority of the neologisms follow the compound structure of the free and bound morphemes. Based on the results of the study, it can be concluded that the neologisms formed during the COVID-19 pandemic reveal the morphological processes and the morphemic structures of the neologisms follow the general structures of English vocabulary specifically on the combination of free and bound morphemes.

scholarly journals Integrative systematics unveils the controversial identity of Engraulidae fishing stocks in a Neotropical estuary, northeast Brazil

2020 ◽  
Vol 18 (4) ◽  
Author(s):  
Fabiana Vicente ◽  
Marina V. Loeb ◽  
Andréa Carla Guimarães de Paiva ◽  
Claudio L. S. Sampaio ◽  
Leandro Araujo Argolo ◽  
...  
Keyword(s):  
Geometric Morphometrics ◽  
Morphological Analysis ◽  
Neotropical Region ◽  
Integrative Approach ◽  
Sao Francisco River ◽  
Local Diversity ◽  
São Francisco River ◽  
Traditional Taxonomy ◽  
The Common ◽  
Integrative Systematics

ABSTRACT In Brazil, the use and diversity of the common names of fish species, coupled with taxonomic uncertainties, hinder the reliability of fishing statistical data. In this scenario, there are the so-called pilombetas of the São Francisco River, an important fishing resource in region. Despite its importance, the real diversity of species identified in the area remains obscure. In order to properly identify and delimit the species popularly known as pilombetas, an integrative approach involving traditional taxonomy, geometric morphometrics and molecular systematics was applied. Results from geometric morphometrics and molecular analyses were consistent with the results of the traditional morphological analysis, also indicating the delimitation of six taxa belonging to Engraulidae in the lower São Francisco River. In addition, species delimitation methods revealed an intrapopulation genetic divergence of 1.7% for Lycengraulis grossidens. The results revealed that the currently known richness species of Engraulidae in the studied area has been underestimated. Thus, an updated taxonomic key is herein proposed for the Engraulidae species from the lower São Francisco River and estuary. The integrative analysis approach revealed to be effective to address taxonomic questions and help the management of stocks, ensuring the maintenance of local diversity of fishes in the Neotropical region.

scholarly journals Investigation of frictional impact on polyester yarn during knitting

2021 ◽  
Vol 72 (06) ◽  
pp. 595-600
Author(s):  
ALI AFZAL ◽  
ABDUL WAQAR RAJPUT ◽  
HAFSA JAMSHAID ◽  
SAJID HUSSAIN ◽  
SYEDA SIDRA BATOOL ◽  
...  
Keyword(s):  
Morphological Analysis ◽  
Effect Of Temperature ◽  
X Ray Diffraction ◽  
Polyester Yarn ◽  
Structural Morphology ◽  
Ir Camera ◽  
Polymeric Chains ◽  
Machine Parts ◽  
Physical And Chemical ◽  
Day By Day

The usage of polyester (PET) in fabrication is increasing day by day due to its properties, ease of physical and chemical modification. The aim of this work is to understand the effect of temperature on Polyester (PET) during knitting. For checking the rise of temperature Infrared (IR) camera is used. Microscopic images are used for studying the effect of temperature on fibre/yarn structure. Morphological analysis is also done by X-ray diffraction (XRD) which shows disturbance of polymeric chains, causing change in crystal size due to elevated temperature. The beads formation and filament breakage are clearly seen in images. Due to this knitting fault, shade variation after dyeing occurred. It is concluded that structural morphology of polyester yarn changes due to friction of yarn with knitting machine parts. Fabric appearance and fabric quality also disturbed which leads to rejections and high losses.

An Automated Parsing Routine for Diagnostic Statements of Surgical Pathology Reports

1971 ◽  
Vol 10 (03) ◽  
pp. 168-175 ◽  
Author(s):  
R. L. Wong ◽  
P. Gaynon
Keyword(s):  
Information Retrieval ◽  
Error Rate ◽  
Magnetic Tape ◽  
Morphological Analysis ◽  
Retrieval System ◽  
Information Retrieval System ◽  
Surgical Pathology ◽  
Medical Terms ◽  
The Common ◽  
Pathology Reports

An automated parsing routine was written for extracting the »site«, »diagnostic«, and »modifier« components of the diagnostic statements of the diagnostic summary of surgical pathology reports. Such parsed reports appear to be suitable for input into an information retrieval system for the surgical pathology reports.Data was input through a key-to-tape device producing a computer compatible magnetic tape with a record size of 870 bytes. The statements were parsed through syntactic and morphological analysis utilizing the common prepositions, the common punctuations and the morphemal constructions common in medical terms. (A total of sixty-two delimiters were used). Certain suffix transformations were performed, converting some »site« adjective to »site« nouns, and some »diagnostic« nouns to »site« nouns. 1,108 diagnostic statements were processed with an error rate of 9.3% for the latest version on the last 493 statements.

scholarly journals Femoral Bifurcation Morphological Analysis: Optimal Diameter of the Common Femoral Artery Stent

2019 ◽  
Vol 58 (6) ◽  
pp. e757-e758
Author(s):  
Bahaa Nasr ◽  
Yann Gouëffic ◽  
Romain Didier ◽  
Mélanie Carret ◽  
Eric Bezon ◽  
...  
Keyword(s):  
Femoral Artery ◽  
Morphological Analysis ◽  
Common Femoral Artery ◽  
The Common ◽  
Optimal Diameter

scholarly journals Scaffold architecture for dental biomaterials: influence of process parameters on the structural morphology of chitosan electrospun fibers

2017 ◽  
Vol 20 (4) ◽  
pp. 100 ◽  
Author(s):  
Joyce Rodrigues De Souza ◽  
Tabata Prado Sato ◽  
Alexandre Luiz Souto Borges
Keyword(s):  
Process Parameters ◽  
Morphological Analysis ◽  
Statistical Significance ◽  
Electrospun Fibers ◽  
Internal Diameter ◽  
Polymeric Fibers ◽  
Structural Morphology ◽  
Influence Of Process Parameters ◽  
Significant Difference ◽  
Oral Tissue

<p><strong>Objective</strong>: The electrospinning is a widely adopted technique used to produce the polymeric fibers. The process depends on process parameters (voltage, flow rate and distance from capillary to the collector). The present study aimed to evaluate the influence of these parameters on chitosan fibers, a biopolymer used as scaffolds in dental and oral tissue engineering. <strong>Material and Methods:</strong> A solution of 7%(m/w) was prepared dissolving 0.7g of chitosan in 7 mL of trifluoroacetic acid (TFA) and 0.3mL of dichloromethane (DCM) (TFA/DCM - 70:30). After 12 hours, polymer solution (5 mL) was drawn into the syringe and pumped through needles of 0.4 mm internal diameter, at a rate of 0.8 mLh-1, different needle-tip-to-collector distances and voltages, for 10 min.  Electrospun fibers micrographies were obtained using the Scanning Electron Microscope for morphological analysis. <strong>Results</strong>: All voltages showed significant difference (p &lt; 0.0001) between them. At 15kV fibers showed higher concentration of beads. At 10 and 12 cm of distance there was no statistical significance (p &gt; 0.0001) but at 15 cm beads formation increased significantly (p &lt; 0.0001). At 12 cm fibers showed lowest fibers diameter in comparison to 10 and 15 cm (p &lt; 0.0001). There was no difference between 10 and 12 cm (p &gt; 0.0001) but in comparison to 15 cm both distances presented significantly difference (p &lt; 0.0001).  <strong>Conclusion</strong>: Thus, it can be concluded that morphology, in chitosan electrospun fibers, is influenced by the voltage and distance and this could describe the mohphological control of these structures.</p><p> </p><p><strong>Keywords</strong></p><p>Chitosan; Fibers; Electrochemical.</p>

The use of egg characters for the classification of Notodontidae (Lepidoptera), with keys to the common Palaearctic genera and species

Zootaxa ◽  
2019 ◽  
Vol 4604 (2) ◽  
pp. 201 ◽  
Author(s):  
IRINA V. DOLINSKAYA
Keyword(s):  
Electron Microscope ◽  
Morphological Analysis ◽  
Digital Camera ◽  
Comparative Morphological Analysis ◽  
Species Complexes ◽  
Outgroup Species ◽  
Egg Colour ◽  
The Common ◽  
Scanning Electron

On the basis of comparative-morphological analysis of 43 genera and 92 species of Palaearctic Notodontidae, as well as the study of the eggs of outgroup species, complexes of characters that are diagnostic, taxonomic or phylogenetic are singled out. It is shown that the egg characteristics are of great taxonomic value at species and generic levels. Some characters are useful for grouping genera. In general, a complex of characters should be used, because different species or genera often share the same characters. Possible apomorphic and plesiomorphic states of the different characters are discussed in relation to the different taxa. The results of this study are discussed with reference to recently published classifications of Notodontidae. As a result of the studies, the keys for identification to the eggs of 43 genera and 92 species of notodontid moths from the Palaearctic region are presented. Reliable diagnostic characters that do not disappear with the injury of eggs or with eggs preserved in alcohol were used. Characters including egg shape, egg and chorion colour, the shape of gnawed holes in eggs when caterpillars hatched, chorionic sculpture, the type of oviposition, foodplants, and geographic distribution of the genera and species were applied. Occasionally, characters that are typical for live eggs, which vary during development, were used. These are characters of egg colour and pattern. The keys are illustrated with photographs made using a digital camera and a scanning electron microscope. 

scholarly journals Using of n-grams from morphological tags for fake news classification

2021 ◽  
Vol 7 ◽  
pp. e624
Author(s):  
Jozef Kapusta ◽  
Martin Drlik ◽  
Michal Munk
Keyword(s):  
Performance Measures ◽  
Morphological Analysis ◽  
Cross Validation ◽  
Fake News ◽  
Pos Tagging ◽  
The Common ◽  
Validation Technique ◽  
N Gram ◽  
Fold Cross Validation

Research of the techniques for effective fake news detection has become very needed and attractive. These techniques have a background in many research disciplines, including morphological analysis. Several researchers stated that simple content-related n-grams and POS tagging had been proven insufficient for fake news classification. However, they did not realise any empirical research results, which could confirm these statements experimentally in the last decade. Considering this contradiction, the main aim of the paper is to experimentally evaluate the potential of the common use of n-grams and POS tags for the correct classification of fake and true news. The dataset of published fake or real news about the current Covid-19 pandemic was pre-processed using morphological analysis. As a result, n-grams of POS tags were prepared and further analysed. Three techniques based on POS tags were proposed and applied to different groups of n-grams in the pre-processing phase of fake news detection. The n-gram size was examined as the first. Subsequently, the most suitable depth of the decision trees for sufficient generalization was scoped. Finally, the performance measures of models based on the proposed techniques were compared with the standardised reference TF-IDF technique. The performance measures of the model like accuracy, precision, recall and f1-score are considered, together with the 10-fold cross-validation technique. Simultaneously, the question, whether the TF-IDF technique can be improved using POS tags was researched in detail. The results showed that the newly proposed techniques are comparable with the traditional TF-IDF technique. At the same time, it can be stated that the morphological analysis can improve the baseline TF-IDF technique. As a result, the performance measures of the model, precision for fake news and recall for real news, were statistically significantly improved.

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