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Items from 1 to 20 out of 6,267 results

article

Disordered eating in a Swedish community sample of adolescent girls: subgroups, stability, and associations with body esteem, deliberate self-harm and other difficulties

Njördur Viborg, Margit Wångby-Lundh, Lars-Gunnar Lundh, Ulf Wallin, more

Journal of Eating Disorders > 2018 > 6 > 1 > 1-11

Background The developmental study of subtypes of disordered eating (DE) during adolescence may be relevant to understand the development of eating disorders. The purpose of the present study was to identify subgroups with different profiles of DE in a community sample of adolescent girls aged 13–15 years, and to study the stability of these profiles and subgroups over a one-year interval in order...

article

Analysis of environmental controls on tsunami deposit texture

Claire L. Kain, Christopher Gomez, Deirdre E. Hart, Catherine Chagué-Goff, more

Marine Geology > 2015 > 368 > Complete > 1-14

Tsunamis transport large amounts of sediment and can leave recognisable signatures in the landscape. The form and composition of onshore tsunami deposits are a function of wave dynamics, sediment availability and characteristics of the local environment, the latter of which also partially controls preservation of the deposit. This research reviews these relationships in a global context and assesses...

article

Global aerosol mixtures and their multiyear and seasonal characteristics

M. Taylor, S. Kazadzis, V. Amiridis, R.A. Kahn, more

Atmospheric Environment > 2015 > 116 > Complete > 112-129

The optical and microphysical characteristics of distinct aerosol types in the atmosphere are not yet specified at the level of detail required for climate forcing studies. What is even less well known are the characteristics of mixtures of aerosol and, in particular, their precise global spatial distribution. Here, cluster analysis is applied to seven years of 3-hourly, gridded 2.5° × 2° aerosol...

article

A support vector machine tool for adaptive tomotherapy treatments: Prediction of head and neck patients criticalities

Gabriele Guidi, Nicola Maffei, Claudio Vecchi, Alberto Ciarmatori, more

Physica Medica > 2015 > 31 > 5 > 442-451

Purpose: Adaptive radiation therapy (ART) is an advanced field of radiation oncology. Image-guided radiation therapy (IGRT) methods can support daily setup and assess anatomical variations during therapy, which could prevent incorrect dose distribution and unexpected toxicities. A re-planning to correct these anatomical variations should be done daily/weekly, but to be applicable to a large number...

article

Directional wave climate and power variability along the Southeast Australian shelf

Thomas R. Mortlock, Ian D. Goodwin, T.R. Mortlock, I.D. Goodwin

Continental Shelf Research > 2015 > 98 > Complete > 36-53

Variability in the modal wave climate is a key process driving large-scale coastal behaviour on moderate- to high-energy sandy coastlines, and is strongly related to variability in synoptic climate drivers. On sub-tropical coasts, shifts in the sub-tropical ridge (STR) modulate the seasonal occurrence of different wave types. However, in semi-enclosed seas, isolating directional wave climates and...

article

Evaluation of the biocontrol potential of Streptomyces goshikiensis YCXU against Fusarium oxysporum f. sp. niveum

Muhammad Faheem, Waseem Raza, Wei Zhong, Zhang Nan, more

Biological Control > 2015 > 81 > Complete > 101-110

A rhizobacterium with broad spectrum antifungal activity was isolated from the rhizosphere of a healthy cucumber plant in a Fusarium wilt diseased field. Phylogenetic tree analysis based on similarity percentage showed that the bacterium was 99% affiliated with the species Streptomyces goshikiensis. The strain, coded as S. goshikiensis YCXU, inhibited in vitro a broad range of phytopathogenic fungi,...

article

Abyssal macrofauna of the Kuril–Kamchatka Trench area (Northwest Pacific) collected by means of a camera–epibenthic sledge

A. Brandt, N.O. Elsner, M.V. Malyutina, N. Brenke, more

Deep-Sea Research Part II > 2015 > 111 > Complete > 175-187

Abyssal macrofaunal composition of 21 epibenthic sledge hauls from twelve stations taken in the Kuril–Kamchatka Trench (KKT) and at the adjacent abyssal plain, Northwest Pacific, is presented. Sampling with the fine meshed epibenthic sledge yielded higher abundances and species richness than was reported from previous expeditions from board of RV Vityaz. In total 84,651 invertebrates were sampled...

article

The different shades of responsibility: Examining domestic and international travelers' motivations for responsible tourism in India

Makarand Mody, Jonathon Day, Sandra Sydnor, William Jaffe, more

Tourism Management Perspectives > 2014 > 12 > Complete > 113-124

To address the scarcity of research concerning the demand side of responsible tourism, the present study examines the motivations of domestic and international travelers in India. Data were collected using an Internet survey distributed via e-mail and Facebook to the clients of five responsible tourism operators in India. Using Dann's push–pull typology, factor analysis uncovered nine underlying motivations...

article

Heavy metal contamination in South African medicinal plants: A cause for concern

A. Okem, C. Southway, W.A. Stirk, R.A. Street, more

South African Journal of Botany > 2014 > 93 > Complete > 125-130

The quality and safety of herbal medicines is becoming a major concern worldwide particularly due to contamination by heavy metals. The present study quantified the levels of heavy metals in frequently used South African medicinal plants and determined the variations in certain biological activities and phytochemical compositions. Eleven plant species were obtained from both muthi shops (MS) (commercial...

article

Spatiotemporal characteristics of drought in Serbia

Milan Gocic, Slavisa Trajkovic, M. Gocic, S. Trajkovic

Journal of Hydrology > 2014 > 510 > Complete > 110-123

The evaluation of spatiotemporal characteristics of drought was based on monthly precipitation data from 29 synoptic stations for the period of 1948–2012. The percent of normal precipitation was applied to illustrate the driest years in Serbia (1990, 2000, and 2011). The Standardized Precipitation Index (SPI) and S-mode principal component analysis (PCA) were used to capture the drought patterns....

article

From fossil associations to ecological communities: a case study from the ‘Cipit boulders’ of the upper Ladinian–lower Carnian St Cassian Formation, Dolomites, NE Italy

Francisco Sánchez‐Beristain, Joachim Reitner

Lethaia > 54 > 2 > 166 - 184

The definition of a fossil ecological community from fossil associations has always been problematic. Determining coevality of the members of a fossil association has posed one of the most ravelling problems in this matter. However, in case of relicts of fossil reefs, this problem seems, to some extent, solvable due to the frequency of fossil findings in life position. In addition, the interaction...

article

Anatomy of psychology practitioner competence: Clustering approach reveals the hierarchical organization of competencies

Craig J. Gonsalvez, Frank P. Deane, Josephine Terry, Chien Hoong Gooi

Clinical Psychology: Science and Practice > 27 > 4 > n/a - n/a

Current competency frameworks for practitioners have been derived through expert consensus but lack empirical validation. We examined the stepwise anatomy of competence using the Clinical Psychology Practicum Competencies Rating Scale with items presented in fixed (Dataset I, 195 trainees) and random order (Dataset II, 353 trainees). Cluster analyses of supervisor ratings revealed that fixed‐order...

article

Platelet mass cytometry: Optimization of sample, reagent, and analysis parameters

Benjamin E. J. Spurgeon, Alan D. Michelson, Andrew L. Frelinger

Cytometry Part A > 99 > 2 > 170 - 179

Platelets mediate key biological processes, including hemostasis, immunity, and inflammation. Although platelets are often treated as a homogeneous cell population, they are known to be heterogeneous in size, age, surface receptor expression, and response to agonist stimulation, raising the possibility that distinct platelet subsets perform specialized functions and that such subsets may be altered...

article

Methodological Synthesis of Cluster Analysis in Second Language Research

Dustin Crowther, Susie Kim, Jongbong Lee, Jungmin Lim, more

Language Learning > 71 > 1 > 99 - 130

We present a review of second language researchers’ use of cluster analysis, an advanced statistical method still uncommon but increasingly used to identify groups or patterns in a dataset and to examine group differences. After describing key methodological considerations in conducting cluster analysis, we present a methodological synthesis of 65 studies published between 1989 and 2018 that employed...

article

Linking student self‐regulated learning profiles to achievement and engagement in mathematics

Timothy J. Cleary, Jacqueline Slemp, Erica R. Pawlo

Psychology in the Schools > 58 > 3 > 443 - 457

The current study identified self‐regulated learning (SRL) profiles of middle school students and examined differences among these profiles across classroom engagement and mathematics achievement outcomes. Using student motivational, regulatory, and contextual variables, cluster analysis revealed a four‐factor solution as most interpretable. The four clusters varied across two dimensions (i.e., SRL...

article

A taxonomy of ecopreneurship in small manufacturing firms: A multidimensional cluster analysis

Torbjörn Ljungkvist, Jim Andersén

Business Strategy and the Environment > 30 > 2 > 1374 - 1388

This study presents a multidimensional taxonomy of “ecopreneurship” for small manufacturing firms. Based on a cluster analysis of 312 Swedish firms, four distinct clusters are identified: pioneers, green dumpers, overlookers, and recyclers. These clusters are compared regarding their level of entrepreneurial orientation and firm performance. Based on the results, and because of the resource constraints...

article

Unpacking teachers’ concerns about CT‐based pedagogy: The case of software education in Korea

Dongsim Kim, Hyo‐Jeong So, DaHyeon Ryoo

Computer Applications in Engineering Education > 29 > 1 > 66 - 82

We adopt the concerns‐based adoption model as an analytical lens to explore how Korean teachers perceive the mandated changes brought about by the policy to teach software (SW) education. The research questions are (a) How can teachers be grouped according to their perceived SW knowledge/skills and pedagogical beliefs? (b) What are the overall trends in teachers' stages of concern about SW education?...

article

Rainfall and streamflow extreme events in the São Francisco hydrographic region

Danilo Henrique Morais Castro Oliveira, Kellen Carla Lima, Maria Helena Constantino Spyrides

International Journal of Climatology > 41 > 2 > 1279 - 1291

Extreme rainfall and streamflow events are becoming increasingly more relevant to discussions concerning potential climate changes on planet earth. In most cases, impacts related to the occurrence of such phenomena can be amplified due to the lack of planning and structure. In this context, the main objective of the study is to estimate the period and level of return of intense rainfall events in...

article

Heterogeneity of Executive Function Abilities in Recently Detoxified Patients with Alcohol Use Disorder: Evidence from a Cluster Analysis

Franca Schmid, Farid Benzerouk, Sarah Barrière, Audrey Henry, more

Alcoholism: Clinical and Experimental Research > 45 > 1 > 163 - 173

Background Impairments of executive functions (EF) have been consistently reported in patients with alcohol use disorder (AUD), mostly in studies which were based on comparisons of means between groups. However, given the high heterogeneity in AUD patients, this approach could actually cover a wide range of EF patterns. In the present study, we addressed the paucity of the literature about cognitive...

article

An objective definition of seasons for the Mediterranean region

George Kotsias, Christos J. Lolis, Nikolaos Hatzianastassiou, Piero Lionello, more

International Journal of Climatology > 41 > S1 > E1889 - E1905

An objective definition of seasons for the Mediterranean region is performed using the mean intra‐annual variations of 12 climatological parameters. The aim is to achieve a climatologically appropriate determination of the onset and cessation dates, as well as the duration, of each season, better than the conventional seasons (winter, spring, summer and autumn). Moreover, possible changes of the defined...

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Disordered eating in a Swedish community sample of adolescent girls: subgroups, stability, and associations with body esteem, deliberate self-harm and other difficulties

Analysis of environmental controls on tsunami deposit texture

Global aerosol mixtures and their multiyear and seasonal characteristics

A support vector machine tool for adaptive tomotherapy treatments: Prediction of head and neck patients criticalities

Directional wave climate and power variability along the Southeast Australian shelf

Evaluation of the biocontrol potential of Streptomyces goshikiensis YCXU against Fusarium oxysporum f. sp. niveum

Abyssal macrofauna of the Kuril–Kamchatka Trench area (Northwest Pacific) collected by means of a camera–epibenthic sledge

The different shades of responsibility: Examining domestic and international travelers' motivations for responsible tourism in India

Heavy metal contamination in South African medicinal plants: A cause for concern

Spatiotemporal characteristics of drought in Serbia

From fossil associations to ecological communities: a case study from the ‘Cipit boulders’ of the upper Ladinian–lower Carnian St Cassian Formation, Dolomites, NE Italy

Anatomy of psychology practitioner competence: Clustering approach reveals the hierarchical organization of competencies

Platelet mass cytometry: Optimization of sample, reagent, and analysis parameters

Methodological Synthesis of Cluster Analysis in Second Language Research

Linking student self‐regulated learning profiles to achievement and engagement in mathematics

A taxonomy of ecopreneurship in small manufacturing firms: A multidimensional cluster analysis

Unpacking teachers’ concerns about CT‐based pedagogy: The case of software education in Korea

Rainfall and streamflow extreme events in the São Francisco hydrographic region

Heterogeneity of Executive Function Abilities in Recently Detoxified Patients with Alcohol Use Disorder: Evidence from a Cluster Analysis

An objective definition of seasons for the Mediterranean region

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