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Journal articles on the topic 'Polytomous key'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

He, Zhaorong. "Polytomous Knowledge Structures Based on Entail Relations." Mathematics 12, no. 16 (2024): 2504. http://dx.doi.org/10.3390/math12162504.

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In knowledge structure theory (KST), an individual’s knowledge state represents the items that the individual can completely solve. Based on the differences in individuals’ latent cognitive competence, polytomous knowledge states can be used to partially represent individuals to solve items. This paper explores the construction of polytomous knowledge states and polytomous knowledge structures on a polytomous knowledge domain Q×L. A quasi-ordinal polytomous knowledge space and a polytomous knowledge space can be induced by two different entail relations, respectively. When the polytomous knowl

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Trusheva, N. A., and O. N. Rezchikova. "Polytomous key for selecting plants according to decorative, phenological, phenotypic traits when landscaping cities in the south of Russia." New Technologies 19, no. 4 (2024): 212–28. http://dx.doi.org/10.47370/2072-0920-2023-19-4-212-228.

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The classic selection of plants for landscaping the urban environment is a rather labor-intensive process involving the use of a large number of reference materials, atlases and plant catalogs. It is necessary to consider various characteristics of plants, taking into account their decorativeness, mutual compatibility, survival in the natural conditions of each region, etc. The purpose of the research was developing a polytomous key and creating it using a modern computer program to simplify the selection of plants according to decorative, phenotypic and phenological characteristics for landsc

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Palomares-Rius, Juan E., Guillermo León-Ropero, Ilenia Clavero-Camacho, Antonio Archidona-Yuste, Carolina Cantalapiedra-Navarrete, and Pablo Castillo. "A New Interactive Web-Based Polytomous Key for Species Identification of Pin Nematodes of the Genus Paratylenchus Micoletzky, 1922 (Nematoda: Paratylenchinae) with the Use of Ribosomal and Mitochondrial Genes." Journal of Zoological Systematics and Evolutionary Research 2022 (July 4, 2022): 1–11. http://dx.doi.org/10.1155/2022/6216266.

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Pin nematodes of the genus Paratylenchus comprise 140 species. This group of nematodes is characterized by a quite homogeneous morphology and cosmopolitan distribution and is prevalent in cultivated and natural soil ecosystems. The present study describes the first interactive and illustrated web-assisted polytomous identification key for the genus Paratylenchus. The updated Paratylenchus species polytomous key was based on a wide list of 24 diagnostic characters generated for the 140 species comprising this genus. Here we developed a web-assisted method to achieve an easy and accurate Paratyl

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Sadigova, D.O. "POLYTOMOUS DEFİNİTİON KEYS FOR FRUİTS OF SOME WOODY (FABACEAE) MEMBERS OF THE LEGUME FAMİLY." Deutsche internationale Zeitschrift für zeitgenössische Wissenschaft 104 (May 20, 2025): 5–7. https://doi.org/10.5281/zenodo.15476735.

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Carpological keys are of great practical importance. So they are important in all cases where plant identification is required. In this context, some attempts are made to compile numerical polytomous keys that allow us to define the species studied using their morphological signs.

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HERNANDES, FABIO AKASHI, SERGE KREITER, and MARIE-STÉPHANE TIXIER. "The first electronic polytomous key to the world species of the subgenus Typhlodromus (Anthoseius) De Leon (Acari: Phytoseiidae)." Zootaxa 3451, no. 1 (2012): 46. http://dx.doi.org/10.11646/zootaxa.3451.1.4.

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This paper describes the first polytomous computerised identification key within the family Phytoseiidae. It applies to thefemales of the world species of the subgenus Typhlodromus (Anthoseius) De Leon. This group is one of the largest withinthe family Phytoseiidae and the sub-family Typhlodrominae, with nearly 350 species currently recognised worldwide. Noidentification tool of these species exists at the world level, which makes their identification very difficult and unsecure.Thirty five characters were used to characterise each of the 343 species. Among these characters, 14 are discrete an

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Purwana, Unang, Dadi Rusdiana, and Winny Liliawati. "PENGUJIAN KEMAMPUAN MENGINTERPRETASIKAN GRAFIK KINEMATIKA CALON GURU FISIKA: THE POLYTOMOUS RASCH ANALYSIS." ORBITA: Jurnal Kajian, Inovasi dan Aplikasi Pendidikan Fisika 6, no. 2 (2020): 259. http://dx.doi.org/10.31764/orbita.v6i2.3264.

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ABSTRAKKemampuan interpretasi grafik merupakan kemampuan yang sangat penting dan kunci utama dalam memahami materi kinematika dan materi fisika lanjutan. Namun kemampuan interpretasi grafik materi kinematika mahasiswa calon guru masih rendah. Tujuan penelitian ini menguji kemampuan membaca dan menginterpretasikan grafik kinematika calon guru dengan analisis polytomous rasch model. Instrumen terdiri dari empat soal uraian menyajikan grafik kinematika. Tes diberikan ke 20 mahasiswa calon guru, terdiri dari 14 perempuan dan 6 laki-laki. Metode yang digunakan survei deskriptif kuantitatif dengan a

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Rana, Mehmood Ahmed, Mahesh Kumar Luhano, Ihsanullah Khan, Maria Noor, Nighat ,. Zahid, and Anam Akram. "Late Diagnosis in oral squamous cell carcinoma, the role of psychological and cognitive variables." Pakistan Journal of Medical and Health Sciences 16, no. 4 (2022): 580–82. http://dx.doi.org/10.53350/pjmhs22164580.

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This retrospective study investigated, in two cohorts of subjects living in Karachi Pakistan and awaiting treatment for oral squamous cell carcinoma (OSCC), the variables related to diagnostic delay ascribable to the patient, with particular reference to the cognitive and psychological ones. A total of 156 patients with OSCC (mean age: 62 years, M/F: 2.39 : 1) were recruited at the Agha Khan Hospital Karachi. Risk factors related to patient delay included: socio demographic, health-related, cognitive and psychological variables. The analysis was conducted by considering two different delay ran

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Khun, Kimkhuy, Wilfrida Decraemer, Marjolein Couvreur, Gerrit Karssen, Hanne Steel, and Wim Bert. "Deceptive morphological variation in Hirschmanniella mucronata (Nematoda: Pratylenchidae) and a polytomous key to the genus." Nematology 17, no. 4 (2015): 377–400. http://dx.doi.org/10.1163/15685411-00002867.

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Hirschmanniella mucronatapopulations isolated from two Cambodian provinces were characterised using morphological, morphometric and molecular criteria. Examination of 1024 specimens from 60 different paddy fields revealed high intraspecific variation in morphology and morphometrics, especially in tail terminus shape and stylet length. Sequence results confirmed that morphologically divergent individuals represent a single species, suggesting that neglecting morphological variation has led to an overestimation ofHirschmannielladiversity in former studies. Phylogenetic analysis of the SSU, D2-D3

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Artemov, I. A. "A multiple-entry polytomous computer key for identification of the Astragalus species (Fabaceae) of Siberia." Contemporary Problems of Ecology 3, no. 6 (2010): 664–71. http://dx.doi.org/10.1134/s1995425510060093.

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Ryss, A. Y. "Taxonomy, evolution and phylogeny of the genus Radopholus (didelphic species) according to morphological data, with a key to species (Nematoda: Tylenchida)." Zoosystematica Rossica 11, no. 2 (2003): 243–56. http://dx.doi.org/10.31610/zsr/2002.11.2.243.

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Present taxonomic status and synonymy of the didelphic species of the genus Radopholus Thorne are considered. A monoentry polytomous key to Radopholus is presented, as well as the rows of characters and a matrix of species and characters which were used for the phylogenetic analysis in the PAUP package. Phylogenetic tree of the genus includes four main species groups (clusters); all the species of the Indo-Asian origin (not inhabiting Australia and Oceania) form a separate monophyletic branch. Basing on the frequency analysis of the character states among the species of the genus, the conclusi

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Loof, Pieter A. A., and Qi-Wen Chen. "A revised polytomous key for the identification of species of the genus Longidorus Micoletzky, 1922 (Nematoda: Dorylaimoidea). Supplement 1." Nematology 1, no. 1 (1999): 55–59. http://dx.doi.org/10.1163/156854199507974.

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Abstract The codes for thirteen species of Longidorus, described since the acceptance for publication of the revised polytomous key (Chen et al., 1997) are given; together with notes on L. pisi, L. latocephalus and L. apuloides, and a correction of the original explanation of the code. L. chikmagalurensis is proposed as a junior synonym of L. psidii, and L. latocephalus as a junior synonym of L. pisi. Clef polytomique revisee pour l'identification des especes du genre Longidorus Micoletzky, 1922 (Nematoda: Dorylaimoidea). Supplement 1 - Les codes sont donnes pour treize especes de Longidorus d

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Xu, Yumei, Weimin Ye, Jianming Wang, and Zengqi Zhao. "Morphological and molecular characterisation of Longidorus pinus sp. n. (Nematoda: Longidoridae) from China and a key to known species of Longidorus in China." Nematology 20, no. 7 (2018): 617–39. http://dx.doi.org/10.1163/15685411-00003165.

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Summary Longidorus pinus sp. n. from China is characterised by females 3.3-4.9 mm long; lip region 8-12 μm diam., distinctly offset by a constriction; amphidial fovea pocket-shaped without basal lobes; a short odontostyle (67-81 μm); anteriorly located guide ring (30-38 μm); and short and conoid tail (31-40 μm long, c = 84-138, c′ = 1.2-1.9), with one or two pairs of caudal pores on each side. Males were not found. Three developmental juvenile stages were identified, the first-stage juvenile with conoid tail (c′ = 2.4-2.9). The polytomous key codes for the new species are: A2(3), B1, C23, D4,

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Reyes, Peña Santiago, and Manuel Peralta. "The genus Tylencholaimellus Cobb in M. V. Cobb, 1915 (Nematoda: Dorylaimida): general morphology, taxonomy, compendium, and polytomous key to the species." Nematology 1, no. 2 (1999): 183–94. http://dx.doi.org/10.1163/156854199508153.

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Abstract A general study of the morphology, evolutionary trends and intrageneric taxonomy of the genus Tylencholaimellus Cobb in M. V. Cobb, 1915 is presented. Variability of its main morphological features is described and illustrated, and their possible evolutionary trends are discussed. The subgenera Tylencholaimellus (Tylencholaimellus) Cobb in M. V. Cobb, 1915 and Tylencholaimellus (Coronatylencholaimellus) Jairajpuri & Ahmad, 1992 are considered synonyms, and consequently not retained. A diagnosis of the genus, a list of its species and a polytomous key to the species are given. Le g

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Pedram, Majid, Robert Robbins, Weimin Ye, Gholamreza Niknam, and Akbar Karegar. "Xiphinema iranicum n. sp. (Nematoda: Longidoridae) from north-western Iran." Nematology 11, no. 1 (2009): 11–21. http://dx.doi.org/10.1163/156854108x398363.

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AbstractXiphinema iranicum n. sp. is described from soil samples collected about the rhizosphere of Rosa sp. growing in a natural mountainous region close to Maragheh city, north-western Iran. The new species belongs to group 6 of the polytomous key to species identification and is unique by having a medium body length (3.8-4.3 mm), odontostyle length of 141-162 μm, odontophore length of 90-98 μm, mid-body diam. of 69-88 μm, presence of spines in the uterus and a hemispherical to conoid tail with a rounded terminus or minute bulge. It resembles X. ingens, X. aceri, X. aequum, X. smoliki, X. il

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Betters, Melissa J., and Erik E. Cordes. "New records of Provanna (Gastropoda, Provannidae) from the Costa Rica Margin and an identification key for the genus." ZooKeys 1189 (January 12, 2024): 1–32. http://dx.doi.org/10.3897/zookeys.1189.109734.

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Consistent species identification is foundational to biological research and requires coordination among a diversity of researchers and institutions. However, such consistency may be hindered for rare organisms where specimens, identification resources, and taxonomic experts are few. This is often the case for deep-sea taxonomic groups. For example, the deep-sea gastropod genus Provanna Dall, 1918 is common at chemosynthetic sites throughout the world’s oceans, yet no formal guide to these species has yet been produced. Recent exploration has recovered new specimens of Provanna from hydrocarbo

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Peraza-Padilla, Walter, Carolina Cantalapiedra-Navarrete, Tatiana Zamora-Araya, Juan E. Palomares-Rius, Pablo Castillo, and Antonio Archidona-Yuste. "A new dagger nematode, Xiphinema tica n. sp. (Nematoda: Longidoridae), from Costa Rica with updating of the polytomous key of Loof and Luc (1990)." European Journal of Plant Pathology 150, no. 1 (2017): 73–90. http://dx.doi.org/10.1007/s10658-017-1253-2.

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Loof, P. A. A., M. Luc, and P. Baujard. "A revised polytomous key for the identification of species of the genusXiphinema Cobb, 1913 (Nematoda: Longidoridae) with exclusion of theX. americanum-group: Supplement 2." Systematic Parasitology 33, no. 1 (1996): 23–29. http://dx.doi.org/10.1007/bf01526631.

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Loof, P. A. A., and M. Luc. "A revised polytomous key for the identification of species of the genus Xiphinema Cobb, 1913 (Nematoda: Longidoridae) with exclusion of the X. americanum-group." Systematic Parasitology 16, no. 1 (1990): 35–66. http://dx.doi.org/10.1007/bf00009600.

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Betters, Melissa J., and Erik E. Cordes. "New records of Provanna (Gastropoda, Provannidae) from the Costa Rica Margin and an identification key for the genus." ZooKeys 1189 (January 12, 2024): 1–32. https://doi.org/10.3897/zookeys.1189.109734.

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Consistent species identification is foundational to biological research and requires coordination among a diversity of researchers and institutions. However, such consistency may be hindered for rare organisms where specimens, identification resources, and taxonomic experts are few. This is often the case for deep-sea taxonomic groups. For example, the deep-sea gastropod genus <i>Provanna</i> Dall, 1918 is common at chemosynthetic sites throughout the world's oceans, yet no formal guide to these species has yet been produced. Recent exploration has recovered new specimens of <i>Provanna</i> f

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Fonseca, Gustavo, Ann Vanreusel, and Wilfrieda Decraemer. "Taxonomy and biogeography of Molgolaimus Ditlevsen, 1921 (Nematoda: Chromadoria) with reference to the origins of deep sea nematodes." Antarctic Science 18, no. 1 (2006): 23–50. http://dx.doi.org/10.1017/s0954102006000034.

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Molgolaimus is a genus of free-living marine nematodes which is found in high densities (10–35% of the total community) up to 2000 m depth. Its occurrence is often associated with organically enriched and recently disturbed areas. Currently, only 16 species have been described, mainly from shallow waters. The present study contributes 17 new species mainly from the Weddell Sea but also from the Pacific Ocean, and provides an illustrated polytomous identification key to species level. The 33 Molgolaimus species described can be identified based on just a few morphometric features: spicule lengt

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Gurgel-Gonçalves, Rodrigo, Fernando Abad-Franch, Maxwell Ramos de Almeida, et al. "TriatoDex, an electronic identification key to the Triatominae (Hemiptera: Reduviidae), vectors of Chagas disease: Development, description, and performance." PLOS ONE 16, no. 4 (2021): e0248628. http://dx.doi.org/10.1371/journal.pone.0248628.

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Correct identification of triatomine bugs is crucial for Chagas disease surveillance, yet available taxonomic keys are outdated, incomplete, or both. Here we present TriatoDex, an Android app-based pictorial, annotated, polytomous key to the Triatominae. TriatoDex was developed using Android Studio and tested by 27 Brazilian users. Each user received a box with pinned, number-labeled, adult triatomines (33 species in total) and was asked to identify each bug to the species level. We used generalized linear mixed models (with user- and species-ID random effects) and information-theoretic model

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Loof, P. A. A., M. Luc, and P. Baujard. "A revised polytomous key for the identification of species of the genus Xiphinema Cobb, 1913 (Nematoda: Longidoridae) with exclusion of the X. americanum-group: Supplement 2." Systematic Parasitology 33, no. 1 (1996): 23–29. http://dx.doi.org/10.1007/bf00009717.

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Loof, P. A. A., and M. Luc. "A revised polytomous key for the identification of species of the genus Xiphinema Cobb, 1913 (Nematoda: Longidoridae) with exclusion of the X. americanum-group: Supplement 1." Systematic Parasitology 24, no. 3 (1993): 185–89. http://dx.doi.org/10.1007/bf00010531.

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Flôr, Cristina Rabelo, Cláudia Di Lorenzo Oliveira, Clareci Silva Cardoso, et al. "Primary health care as assessed by health professionals: comparison of the traditional model versus the Family Health Strategy." Revista Brasileira de Epidemiologia 20, no. 4 (2017): 714–26. http://dx.doi.org/10.1590/1980-5497201700040013.

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ABSTRACT: Introduction: The Family Health Strategy (FHS) should be first-contact care in the Brazilian Health System. However, Primary Health Care (PHC) still encompasses two models: the FHS and the traditional health care facilities. The expansion of the FHS has been slow and heterogeneous in many cities, rendering a comparative evaluation of key quality-related elements of PHC models crucial. Objective: To compare the performance of PHC models as perceived by health professionals. Methods: A cross-sectional study involving managers and health professionals from PHC of a medium-size city in S

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Barsi, László, and Francesca Luca. "Morphological and molecular characterisation of two putative Xiphinema americanum-group species, X. parasimile and X. simile (Nematoda: Dorylaimida) from Serbia." Nematology 10, no. 1 (2008): 15–25. http://dx.doi.org/10.1163/156854108783360212.

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Abstract Problems associated with the taxonomic status of Xiphinema parasimile and X. simile are reviewed. Their accurate identification is difficult due to their high morphological and morphometrical similarity. A comparative morphological and molecular study of these species was done to define their specific status and differences. Lip region morphology showed less variability in comparison with tail shape in both species, which was more variable in X. simile. Differences in lip region were constant between these species, but specimens with similar tail shape rarely occurred. Both species sh

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Lee, Juyeon, and Sue K. Park. "Associations of heavy metals and urinary sodium excretion with obesity in adults: A cross-sectional study from Korean Health Examination and Nutritional Survey." PLOS ONE 20, no. 1 (2025): e0317190. https://doi.org/10.1371/journal.pone.0317190.

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Backgrounds Sodium and heavy metals are among the key elements to which humans are exposed due to environmental pollution and food consumption. Investigating the association between heavy metals, urinary sodium excretion, and obesity is of significant importance, given potential implications for public health. Therefore, this study aims to explore the relationship between heavy metals, urinary sodium excretion, and overweight and obesity in the Korean population. Methods Data from 6,609 participants in the Korea National Health and Nutrition Examination Survey (KNHANES) from 2008 to 2012 were

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Shen, Qingwei, Yutian LAI, Xiaoqu Li, Yanli Ji, and Kun Zhou. "The Role of an Array of Routine Clinical Variables to the Occurrence and Severity of Postoperative Pneumonia in Non–Small Cell Lung Cancer Patients." International Surgery 102, no. 9-10 (2018): 396–403. http://dx.doi.org/10.9738/intsurg-d-16-00193.1.

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Background and purpose: Data of an array of preoperative/intraoperative clinical variables may carry significant information for predicting the probability of postoperative pneumonia or chest infection in non–small cell lung cancer (NSCLC) patients. We aimed to investigate the association between those variables and the occurrence of postoperative pneumonia (POP) as well as the severity of POP, based on routine laboratory tests, basic characteristics, and perioperative variables during the in-hospital period. Methods: A consecutive series of NSCLC patients undergoing lung cancer lobectomy at o

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Gourraud, Aurore, Lebbe Régine Vignes, Adeline Kerner, and Marc Pignal. "Architectural Pattern: Study of orchid architecture using tools to take quick measurements of virtual specimens." Biodiversity Information Science and Standards 5 (September 27, 2021): e75752. https://doi.org/10.3897/biss.5.75752.

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The joint use of two tools applied to plant description, <em>XPER3</em> and <em>Recolnat Annotate</em>, made it possible to study vegetative architectural patterns (Fig. 1) of the <em>Dendrobium</em> (Orchidaceae) in New Caledonia defined by N. Hallé (1977). This approach is not directly related to taxonomy, but to the definition of sets of species grouped according to a growth pattern. In the course of this work, the characters stated by N. Hallé were analysed and eventually amended to produce a data matrix and generate an identification key.Study materials: <em>Dendrobium</em> Sw. in New Cal

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Karanastasi, E., W. Decraemer, P. E. Kyriakopoulou, and R. Neilson. "First Report of the Stubby-Root Nematode Paratrichodorus teres Associated with Artichoke (Cynara scolymus) in Greece." Plant Disease 89, no. 6 (2005): 685. http://dx.doi.org/10.1094/pd-89-0685a.

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The polyphagous stubby-root nematode species, Paratrichodorus teres (Hooper) Siddiqi, was first described from soil under lettuce near Norwich, UK and subsequently reported from South Africa and the United States, but predominantly from temperate regions within Europe (4). P. teres is one of 13 economically important trichodorid species known to be vectors of Tobacco rattle virus (TRV) (4). Artichokes planted during 2000 in a field located in the Kandia area of the Argolis Region, Greece (37°32′N, 22°56′E) exhibited symptoms of a virus infection. Sampling was done to ascertain the presence of

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Yuan, Jiayu, Zhiwei Wu, Shun Li, Ping Kang, and Shihao Zhu. "Multi-Feature-Based Identification of Subtropical Evergreen Tree Species Using Gaofen-2 Imagery and Algorithm Comparison." Forests 14, no. 2 (2023): 292. http://dx.doi.org/10.3390/f14020292.

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The species and distribution of trees in a forest are critical to the understanding of forest ecosystem processes and the development of forest management strategies. Subtropical forest landscapes feature a complex canopy structure and high stand density. Studies on the effects of classification algorithms on the remote sensing-based identification of tree species are few. GF-2 is the first satellite in China with sub-meter accuracy which has the high resolution and short replay cycle. Here, we considered three representative tree types (Masson pine, Chinese fir, and broadleaved evergreen tree

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Beltrán-Torres, G. C., and J. Hernández-Fernández. "NEW MITOCHONDRIAL MARKERS IMPROVE THE PHYLOGENY OF THE HAWKSBILL TURTLE Eretmochelys imbricata (TESTUDINES: CHELONIIDAE)." Journal of Basic and Applied Genetics 29, no. 2 (2018): 21–31. http://dx.doi.org/10.35407/bag.2018.29.02.03.

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The sea turtles (Cheloniidae) are a group of seven species of cretaceous origin. Analyses of partial mitochondrial sequences have revealed phylogenetic inconsistences within this group. Nevertheless, these mitochondrial markers have allowed us to understand, explain and clarify population composition in areas of foraging, reproductive habits, inferences of migration patterns and, also, to define management units in the world, in order to trace conservation and monitoring plans. In this study, four methods were evaluated and compared for phylogenetic inference (Neighbor-Joining-NJ, Maximum Like

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Yuan, Lu, Yingshi Huang, and Ping Chen. "Online Calibration for Multidimensional CAT With Polytomously Scored Items: A Neural Network–Based Approach." Journal of Educational and Behavioral Statistics, February 13, 2025. https://doi.org/10.3102/10769986251315531.

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Online calibration is a key technology for calibrating new items in computerized adaptive testing (CAT). As multidimensional polytomous data become popular, online calibration methods applicable to multidimensional CAT with polytomously scored items (P-MCAT) have been proposed. However, the existing methods are mainly based on marginal MLE with an expectation-maximization algorithm (MMLE/EM), making it difficult to accurately estimate parameters in high-dimensional scenarios without sufficient calibration sample size or suitable initial values. To conquer these challenges, a neural network (NN

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Zhou, Yinfeng, Jinjin Li, Hongkun Wang, and Wen Sun. "Skills and fuzzy knowledge structures." Journal of Intelligent & Fuzzy Systems, September 19, 2021, 1–17. http://dx.doi.org/10.3233/jifs-212018.

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In knowledge space theory (KST), knowledge structure is an effective feature to evaluate individuals’ knowledge and guide future learning. How to construct knowledge structures is one of the key research problems in KST. At present, the knowledge structure has been generalized to the polytomous knowledge structure. This article mainly focuses on the special polytomous knowledge structures delineated by Skills, which are called fuzzy knowledge structures. We consider how to construct fuzzy knowledge structures based on the relationship between items and skills, and how to find the learning path

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Jin, Kuan-Yu, and Thomas Eckes. "The Impact of Insufficient Effort Responses on the Order of Category Thresholds in the Polytomous Rasch Model." Educational and Psychological Measurement, April 13, 2024. http://dx.doi.org/10.1177/00131644241242806.

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Insufficient effort responding (IER) refers to a lack of effort when answering survey or questionnaire items. Such items typically offer more than two ordered response categories, with Likert-type scales as the most prominent example. The underlying assumption is that the successive categories reflect increasing levels of the latent variable assessed. This research investigates how IER affects the intended category order of Likert-type scales, focusing on the category thresholds in the polytomous Rasch model. In a simulation study, we examined several IER patterns in datasets generated from th

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Pacella, Kara A. Christensen, Brianne N. Richson, Nicole A. Short, et al. "Using item response theory to identify key symptoms of insomnia in a sample of university students with probable eating disorders." Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity 29, no. 1 (2024). http://dx.doi.org/10.1007/s40519-024-01679-z.

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Abstract Purpose Researchers have theorized that interactions between appetitive and circadian disruptions result in increased eating disorder (ED) symptoms and insomnia. However, it is unclear how specific insomnia symptoms present among people with EDs and if the latent structure of insomnia in this population is similar to that of people with insomnia disorder. Methods We conducted a secondary analysis of data collected on ED and insomnia symptoms using a subset of students (N = 547; 79.52% female) with probable EDs at a large Midwestern American university. Item response theory (IRT) for p

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Ryss, Alexander Yu, Andrey A. Chalkin, and Sergei A. Subbotin. "Sychnotylenchus kulinichi sp. n. (Nematoda: Anguinoidea) from the Primorsky Krai of Russia with a tabular key to the genus Sychnotylenchus Rühm, 1956." Nematology, October 1, 2024, 1–22. http://dx.doi.org/10.1163/15685411-bja10358.

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Summary A new species of the genus Sychnotylenchus Rühm, 1956, S. kulinchi sp. n., inhabiting the bark beetle galleries of Pityogenes chalcographus in Pinus koraiensis was found in the Primorsky Krai of Russia. The new species differs morphologically from the closely related species S. yasinskii and S. mayor in having a shorter body length (626-1030 vs 1250-1280 and 1935-1455 μm, respectively) and from S. sparnugus in having a greater value of the ratio between spicule length and tail length (0.9-11 vs less than 0.7). Phylogenetic analysis of the partial 18S rRNA, D2-D3 expansion segments of t

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Liébanas, G., I. Clavero-Camacho, C. Cantalapiedra-Navarrete, et al. "A new needle nematode, Longidorus maginicus n. sp. (Nematoda: Longidoridae) from southern Spain." Journal of Helminthology 96 (2022). http://dx.doi.org/10.1017/s0022149x22000311.

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Abstract During nematode surveys in natural vegetation in Sierra Mágina, Jaén province, southern Spain, a Longidorus species closely resembling Longidorus carpetanensis was found, but application of integrative taxonomic approaches clearly demonstrated that it is a new species described herein as Longidorus maginicus n. sp. The new species is amphimictic, characterized by a moderately long body (4.2–5.2 mm); lip region anteriorly flattened, slightly separated from the rest of body by a depression, 9.0–11.0 μm wide and 3.5–6.0 μm high; amphidial fovea not lobed; relatively short odontostyle (61

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Argirion, Ilona, Ruth M. Pfeiffer, Tram Kim Lam, et al. "Association between immunologic markers and cirrhosis in individuals with chronic hepatitis B." Scientific Reports 11, no. 1 (2021). http://dx.doi.org/10.1038/s41598-021-00455-8.

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AbstractHost immune response and chronic inflammation associated with chronic hepatitis B virus (HBV) infection play a key role in the pathogenesis of liver diseases such as cirrhosis and hepatocellular carcinoma (HCC). We sampled 175 HCC, 117 cirrhotic and 165 non-cirrhotic controls from a prospective cohort study of chronically HBV-infected individuals. Multivariable polytomous logistic regression and canonical discriminant analysis (CDA) were used to compare baseline plasma levels for 102 markers in individuals who developed cirrhosis vs. controls and those who developed HCC vs. cirrhosis.

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Collin, Lindsay J., Kara L. Cushing-Haugen, Kathryn L. Terry, et al. "Patterns of associations with epidemiologic factors by high grade serous ovarian cancer gene expression subtypes." Cancer Epidemiology, Biomarkers & Prevention, February 26, 2025. https://doi.org/10.1158/1055-9965.epi-24-1143.

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Abstract Background: Ovarian high-grade serous carcinomas (HGSC) comprise four distinct molecular subtypes based on mRNA expression patterns, with differential survival. Understanding risk factor associations is important to elucidate the etiology of HGSC. We investigated associations between different epidemiologic risk factors and HGSC molecular subtypes. Methods: We pooled data from 11 case-control studies with epidemiologic and tumor gene expression data from custom NanoString CodeSets developed through a collaboration within the Ovarian Tumor Tissue Analysis Consortium. The PrOTYPE valida

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Ryss, Alexander Y., Corwin Parker, Sergio Álvarez-Ortega, Steven A. Nadler, and Sergei A. Subbotin. "Bursaphelenchus juglandis n. sp. (Nematoda: Aphelenchoididae), an associate of walnut twig beetle, Pityophthorus juglandis, the vector of thousand cankers disease." Nematology, July 16, 2020, 1–30. http://dx.doi.org/10.1163/15685411-bja10037.

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Summary Bursaphelenchus juglandis n. sp. was isolated from the walnut twig beetle, Pityophthorus juglandis, and walnut trees, Juglans spp. with symptoms of thousand cankers disease, in California, USA. Based on analysis of three rRNA genes and morphological features (three lines in lateral field, small arched vulval flap in female, broad spicule with two lines along blade and small cucullus, digitate dorsally bent condylus, male tail pattern of five papilliform papillae and one pair of glandpapillae (P5), and curved conical female tail), the new species belongs to the Abietinus group within Bu

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Humphry, Stephen, and Paul Montuoro. "Judging similarity versus judging difference." Frontiers in Education 8 (April 17, 2023). http://dx.doi.org/10.3389/feduc.2023.1117410.

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A key feature of the polytomous Rasch model is that it entails a single classification process into one of a set of ordered response categories. The first aim of this article is to make explicit two processes in rubric designs that bring about such classifications, and identify implications of the distinction between them. The first process involves judgements of similarity, typified by judgements that a performance is similar to a category description. The second process involves judgements of difference. It is typified by judgements that a performance is better than a category description. I

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Gu, Jianfeng, Yiwu Fang, Xinxin Ma, Baolin Shao, and Kan Zhuo. "Meloidogyne paramali n. sp. (Nematoda: Meloidogyninae) and First Report of M. marylandi in maple and yacca tree from Japan." Journal of Nematology 55, no. 1 (2023). http://dx.doi.org/10.2478/jofnem-2022-0036.

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Abstract Meloidogyne paramali n. sp. was detected from Japanese maple trees (Acer palmatum) from Chiba, Japan during quarantine inspections in China. This species is characterized by second-stage juveniles (J2) with short tail length 32.2 (24–36.8) μm, finely rounded to broadly pointed tail terminus with extremely short hyaline tail terminus 4.3 (3.0–4.9) μm; perineal patterns of females characterized by an oval or irregular appearance, with round and low dorsal arch, and fine and smooth striae. M. paramali n. sp. is very similar to M. mali in that the perineal pattern has fine, smooth striae

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Roul, Subal Kumar, N. S. Jeena, Rajan Kumar, et al. "Postulating the Modality of Integrative Taxonomy in Describing the Cryptic Congener Pampus griseus (Cuvier) and Systematics of the Genus Pampus (Perciformes: Stromateidae)." Frontiers in Marine Science 8 (December 24, 2021). http://dx.doi.org/10.3389/fmars.2021.778422.

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Pomfrets (genus Pampus), a highly commercial fishery resource distributed in the Indo-Western Pacific that includes Lessepsian migrants, have witnessed a series of systematic reforms. In this study, based on comprehensive sampling spanning type localities and coevals in the Northern Indian Ocean, the cryptic and valid species Stromateus griseus is resurrected from the synonymy and re-described as Pampus griseus (New Combination) based on 35 specimens from the Bay of Bengal, corroborated by a molecular analysis, which indicated a confined distribution of the species. The Bayesian phylogeny of t

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Ebrahimi, Fatemeh, Samaneh Torkian, Roya Rashti, Mahasti Emami, Hossein Shahnazi, and Mohammad Reza Maracy. "Exploring the Relation Between Health Literacy, Infodemic, and Acceptance of COVID-19 Vaccination in Iran: A Cross-Sectional Study." HLRP: Health Literacy Research and Practice 8, no. 4 (2024). http://dx.doi.org/10.3928/24748307-20240607-01.

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Background Health literacy (HL) plays a crucial role in navigating the coronavirus disease 2019 (COVID-19) pandemic, especially with the abundance of conflicting information from unauthorized sources. Objective This study aims to measure COVID-19 vaccine acceptability, COVID-19 HL, and COVID-19 infodemic and their predictors in Iranians. Methods A cross-sectional study was conducted on the general population in Iran between August 20, 2021 to October 29, 2021. Data were collected using a valid questionnaire with four parts. Univariable and multivariable logistic regression models, generalized

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Allès, B., Z. Colombet, N. Arnault, M. Touvier, and C. Méjean. "What can diet of migrants from the French West Indies indicate about the nutrition transition?" European Journal of Public Health 33, Supplement_2 (2023). http://dx.doi.org/10.1093/eurpub/ckad160.1637.

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Abstract Background French West Indies, like the other Caribbean territories, are currently undergoing a nutrition transition. Little is known about how migration and subsequent changes in food habits could influence adherence to specific dietary patterns. Our study aimed to assess dietary intake among French West Indians who live in and/or were born in the French West Indies, compared with individuals born and living in mainland France. Methods 1,094 participants from the NutriNet-Santé e-cohort, prospectively included between 2009-2019, were categorized into 4 subgroups: born and living in t

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Sattelmayer, Karl Martin, Odile Chevalley, Jan Kool, et al. "Development of an exercise programme for balance abilities in people with multiple sclerosis: a development of concept study using Rasch analysis." Archives of Physiotherapy 11, no. 1 (2021). http://dx.doi.org/10.1186/s40945-021-00120-3.

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Abstract Background People with multiple sclerosis (PwMS) frequently have impaired balance from an early stage of the disease. Balance difficulties can be divided into categories; although, to date, these lack scientific foundation. Impaired balance in PwMS can be addressed using specific and challenging exercises. Such exercises should provide an optimal challenge point; however, the difficulty of balance exercises is often unknown, making it difficult to target the exercises to an individual’s abilities. The aims of this study were: to develop an exercise programme for PwMS relating the exer

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Kleinenberg-Talsma, N., F. van der Lucht, H. Jager-Wittenaar, WP Krijnen, and EJ Finnema. "Developing a Frailty Index and investigating its psychometric properties using Item Response Theory." European Journal of Public Health 31, Supplement_3 (2021). http://dx.doi.org/10.1093/eurpub/ckab164.646.

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Abstract Background The proportion of frail older adults is increasing and is expected to further increase in the coming years, both globally and in the Dutch population. This poses a great challenge to public health. To determine the prevalence of frailty in a population, a frailty index (FI) is recommended. A FI is an accumulation model encompassing health deficits in multiple domains. Previous research has shown that a FI can be created out of existing health surveys, since it is a flexible instrument, fairly insensitive to the use of specific items. However, this is based on scale developm

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Sayed, Shahin, Shaoqi Fan, Zahir Moloo, et al. "Breast cancer risk factors in relation to molecular subtypes in breast cancer patients from Kenya." Breast Cancer Research 23, no. 1 (2021). http://dx.doi.org/10.1186/s13058-021-01446-3.

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Abstract Background Few studies have investigated risk factor heterogeneity by molecular subtypes in indigenous African populations where prevalence of traditional breast cancer (BC) risk factors, genetic background, and environmental exposures show marked differences compared to European ancestry populations. Methods We conducted a case-only analysis of 838 pathologically confirmed BC cases recruited from 5 groups of public, faith-based, and private institutions across Kenya between March 2012 to May 2015. Centralized pathology review and immunohistochemistry (IHC) for key markers (ER, PR, HE

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Meyer, M., K. Dadaczynski, M. Messer, and O. Okan. "Psychometric evaluation of a COVID-19 health literacy scale applying Rasch analysis." European Journal of Public Health 34, Supplement_3 (2024). http://dx.doi.org/10.1093/eurpub/ckae144.1685.

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Abstract Background Assessing health literacy in times of the COVID-19 pandemic is vital, since health literacy has been highlighted as a personal resource for managing health information. The HLS-Covid-Q22 questionnaire was developed to measure self-reported COVID-19 health literacy in adults. It has been used and validated, mainly using confirmatory factor analysis, in some studies with different target groups. However, several comprehensive validation studies are needed to ensure the feasibility of a novel measurement tool. In the current study, Rasch analysis has been chosen, as this analy

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Edens, Neile K., Sonika Sharma, Stephanie Folkens, Allison Wojtowicz, Nalini Ranjit, and Alexandra Evans. "Experiential Cooking and Nutrition Education Program Improves Fruit and Vegetable Liking, Vegetable Consumption, and Cooking at Home in Elementary and Middle School Children." FASEB Journal 30, S1 (2016). http://dx.doi.org/10.1096/fasebj.30.1_supplement.676.13.

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Most Americans, including children, do not meet dietary guidelines for consumption of fruits and vegetables. Inadequate consumption of fruit and vegetables can lead to dietary deficits in key vitamins, minerals, and fiber, which may increase risk for certain chronic diseases. The objective of this study was to determine whether participating in an experiential cooking and nutrition education intervention based on the Social‐Ecological Model could improve healthy dietary intake among youth. 1010 elementary and middle‐school children participated in after‐school nutrition and cooking interventio

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