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1.
BMC Ecol Evol ; 24(1): 84, 2024 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-38926829

RESUMO

BACKGROUND: Accelerating biodiversity loss necessitates monitoring the potential pathogens of vulnerable species. With a third of New Zealand's avifauna considered at risk of extinction, a greater understanding of the factors that influence microbial transmission in this island ecosystem is needed. We used metatranscriptomics to determine the viruses, as well as other microbial organisms (i.e. the infectomes), of seven bird species, including the once critically endangered black robin (Petroica traversi), on two islands in the remote Chatham Islands archipelago, New Zealand. RESULTS: We identified 19 likely novel avian viruses across nine viral families. Black robins harboured viruses from the Flaviviridae, Herpesviridae, and Picornaviridae, while introduced starlings (Sturnus vulgaris) and migratory seabirds (Procellariiformes) carried viruses from six additional viral families. Potential cross-species virus transmission of a novel passerivirus (family: Picornaviridae) between native (black robins and grey-backed storm petrels) and introduced (starlings) birds was also observed. Additionally, we identified bacterial genera, apicomplexan parasites, as well as a novel megrivirus linked to disease outbreaks in other native New Zealand birds. Notably, island effects were outweighed by host taxonomy as a significant driver of viral composition, even among sedentary birds. CONCLUSIONS: These findings underscore the value of surveillance of avian populations to identify and minimise escalating threats of disease emergence and spread in these island ecosystems. Importantly, they contribute to our understanding of the potential role of introduced and migratory birds in the transmission of microbes and associated diseases, which could impact vulnerable island-endemic species.


Assuntos
Doenças das Aves , Aves , Ilhas , Animais , Nova Zelândia/epidemiologia , Aves/virologia , Doenças das Aves/virologia , Doenças das Aves/transmissão , Doenças das Aves/microbiologia , Doenças das Aves/epidemiologia , Vírus/isolamento & purificação , Vírus/genética , Vírus/classificação , Biodiversidade
2.
J Pers Assess ; 106(2): 242-253, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37144843

RESUMO

The 20-item Toronto Alexithymia Scale (TAS-20) is the most widely used instrument for assessing alexithymia, with more than 25 years of research supporting its reliability and validity. The items that compose this scale were written to operationalize the components of the construct that are based on clinical observations of patients and thought to reflect deficits in the cognitive processing of emotions. The Perth Alexithymia Questionnaire (PAQ) is a recently introduced measure and is based on a theoretical attention-appraisal model of alexithymia. An important step with any newly developed measure is to evaluate whether it demonstrates incremental validity over existing measures. In this study using a community sample (N = 759), a series of hierarchical regression analyses were conducted that included an array of measures assessing constructs closely associated with alexithymia. Overall, the TAS-20 showed strong associations with these various constructs to which the PAQ was unable to add any meaningful increase in prediction relative to the TAS-20. We conclude that until future studies with clinical samples using several different criterion variables demonstrate incremental validity of the PAQ, the TAS-20 should remain the self-report measure of choice for clinicians and researchers assessing alexithymia, albeit as part of a multi-method approach.


Assuntos
Sintomas Afetivos , Emoções , Humanos , Sintomas Afetivos/diagnóstico , Sintomas Afetivos/psicologia , Reprodutibilidade dos Testes , Inquéritos e Questionários , Autorrelato , Psicometria
3.
Radiat Prot Dosimetry ; 199(15-16): 1725-1728, 2023 Oct 11.
Artigo em Inglês | MEDLINE | ID: mdl-37819333

RESUMO

The International Commission on Radiation Units and Measurements, ICRU, have recommended, in ICRU Report 95, the adoption of new operational quantities for use in radiation protection monitoring. Their implementation will pose problems for instrument manufacturers supplying area dosemeters and for individual monitoring services providing personal dosemeters for radiation workers. The problems arise for photon, neutron and beta dosimetry, but this paper deals solely with neutron personal dosemeters based on poly-allyl diglycol carbonate (PADC) plastic. It presents information on the problems to be expected based on data from calibrations of actual personal neutron dosemeters in terms of the existing dose quantities.


Assuntos
Exposição Ocupacional , Doses de Radiação , Monitoramento de Radiação , Radiometria , Humanos , Nêutrons , Exposição Ocupacional/análise
4.
Psychodyn Psychiatry ; 51(3): 287-310, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37712663

RESUMO

The concept of pensée opératoire (operational thinking) was introduced by French psychoanalysts in 1963 and a decade later was included as an essential component of the alexithymia construct as formulated by the U.S. analysts John Nemiah and Peter Sifneos. Despite a large body of research on alexithymia, the pensée opératoire component is not well understood, especially among clinicians and researchers who are not familiar with French psychoanalytic literature. In this article we clarify the definition and metapsychological conceptualization of the concept, review findings from some relevant empirical studies, and critique a recent proposal for redefining the alexithymia construct that departs from the original understanding of pensée opératoire. We also discuss some clinical implications of the concept and some strategies that psychotherapists can employ in the treatment of patients with this mode of thinking.


Assuntos
Psicanálise , Humanos
5.
Proc Natl Acad Sci U S A ; 120(16): e2214574120, 2023 04 18.
Artigo em Inglês | MEDLINE | ID: mdl-37036988

RESUMO

The global loss of biodiversity has inspired actions to restore nature across the planet. Translocation and social attraction actions deliberately move or lure a target species to a restoration site to reintroduce or augment populations and enhance biodiversity and ecosystem resilience. Given limited conservation funding and rapidly accelerating extinction trajectories, tracking progress of these interventions can inform best practices and advance management outcomes. Seabirds are globally threatened and commonly targeted for translocation and social attraction ("active seabird restoration"), yet no framework exists for tracking these efforts nor informing best practices. This study addresses this gap for conservation decision makers responsible for seabirds and coastal management. We systematically reviewed active seabird restoration projects worldwide and collated results into a publicly accessible Seabird Restoration Database. We describe global restoration trends, apply a systematic process to measure success rates and response times since implementation, and examine global factors influencing outcomes. The database contains 851 active restoration events in 551 locations targeting 138 seabird species; 16% of events targeted globally threatened taxa. Visitation occurred in 80% of events and breeding occurred in 76%, on average 2 y after implementation began (SD = 3.2 y). Outcomes varied by taxonomy, with the highest and quickest breeding response rates for Charadriiformes (terns, gulls, and auks), primarily with social attraction. Given delayed and variable response times to active restoration, 5 y is appropriate before evaluating outcomes. The database and results serve as a model for tracking and evaluating restoration outcomes, and is applicable to measuring conservation interventions for additional threatened taxa.


Assuntos
Charadriiformes , Recuperação e Remediação Ambiental , Animais , Conservação dos Recursos Naturais , Extinção Biológica , Internacionalidade , Cruzamento , Ecossistema , Bases de Dados Factuais
8.
J Exp Zool A Ecol Integr Physiol ; 337(4): 381-392, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35167183

RESUMO

Seabird breeding success is known to reflect oceanic conditions. Gray-faced petrels (Pterodroma gouldi) breeding on the east coast of Auckland, New Zealand, exhibit poor reproductive success and slow chick development compared to west coast conspecifics. This study mapped changes in physiological traits (corticosterone [CORT] and hematological parameters) indicative of sublethal stress in this Procellariiform species between the west coast (Ihumoana) and east coast (Hawere) island colonies. We found adult gray-faced petrels on the east coast to be lighter and, unlike west coast birds, exhibited an attenuation of response CORT levels between incubation and chick-rearing phases. Such responses were also reflected in east coast chicks that were lighter and had higher feather CORT titers than west coast chicks. Measures of adult hematology and plasma biochemistry revealed significantly lower glucose levels in east coast birds and indicated that chick rearing is the most stressful phase of breeding for this species Combined; these results suggest that east coast birds are under greater nutritional stress and that parents appear to transfer the costs of poor foraging to their chicks to preserve their own condition, consequently increasing chick developmental stress. Our results suggest that any long-term decrease in ocean conditions and/or climatic shifts would be more acutely felt by east coast chicks and potentially their parents, resulting in years of poor breeding success rates on a local scale.


Assuntos
Aves , Corticosterona , Animais , Biomarcadores , Aves/fisiologia , Plumas , Reprodução
9.
Bioinformatics ; 38(6): 1593-1599, 2022 03 04.
Artigo em Inglês | MEDLINE | ID: mdl-34951624

RESUMO

MOTIVATION: Bioinformatic tools capable of annotating, rapidly and reproducibly, large, targeted lipidomic datasets are limited. Specifically, few programs enable high-throughput peak assessment of liquid chromatography-electrospray ionization tandem mass spectrometry data acquired in either selected or multiple reaction monitoring modes. RESULTS: We present here Bayesian Annotations for Targeted Lipidomics, a Gaussian naïve Bayes classifier for targeted lipidomics that annotates peak identities according to eight features related to retention time, intensity, and peak shape. Lipid identification is achieved by modeling distributions of these eight input features across biological conditions and maximizing the joint posterior probabilities of all peak identities at a given transition. When applied to sphingolipid and glycerophosphocholine selected reaction monitoring datasets, we demonstrate over 95% of all peaks are rapidly and correctly identified. AVAILABILITY AND IMPLEMENTATION: BATL software is freely accessible online at https://complimet.ca/batl/ and is compatible with Safari, Firefox, Chrome and Edge. SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online.


Assuntos
Lipidômica , Software , Teorema de Bayes , Espectrometria de Massas , Cromatografia Líquida/métodos
10.
Psychol Assess ; 33(7): 619-628, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33793263

RESUMO

The 20-Item Toronto Alexithymia Scale (TAS-20) is the most widely used measure to assess the personality construct of alexithymia and is composed of three-factor analytically derived subscales. These subscales measure and represent three critical, theoretically based facets of alexithymia. The subscales are distinct, yet highly interrelated and only as a collective body do they reflect adequately the alexithymia construct. Although different studies using both university student and community samples suggest that TAS-20 total scores are largely reflective of variation on a single construct, and that subscale scores do not provide unique and reliable information beyond total scores, many users of the scale frequently continue to employ and even rely more heavily on subscale scores rather than total scale scores when interpreting research study outcomes. Our goal in this study is to provide clinicians and researchers with replicable psychometric information for the TAS-20 estimated from bifactor modeling in an attempt to provide further support for using total rather than subscale scores. In general, our findings were consistent with previous studies indicating that TAS-20 total scores can be considered indicative of a single construct. The replication of these earlier results from previous investigations provides additional support for the use of a total TAS-20 score and questions the utility of using TAS-20 subscale scores. Based on these results, we recommend that researchers and clinicians use a single total TAS-20 score and not subscale scores. (PsycInfo Database Record (c) 2021 APA, all rights reserved).


Assuntos
Sintomas Afetivos/diagnóstico , Testes de Personalidade , Personalidade , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Análise Fatorial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Psicológicos , Modelos Estatísticos , Psicometria , Reprodutibilidade dos Testes , Adulto Jovem
11.
Psychiatry Res ; 299: 113840, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33667948

RESUMO

Four subtypes of the alexithymia construct have been proposed based on different response patterns to the Cognitive and Affective dimensions of the Bermond-Vorst Alexithymia Questionnaire (BVAQ). Previous studies investigating whether alexithymia subtypes can be statistically estimated have not found complete support for these specific subtypes. These previous studies, however, contained several methodological limitations such as relatively small sample sizes, and considerations of only a limited number of proposed subtypes. In the current investigation, we examined whether the four proposed subtypes could be statistically detected in a large sample of undergraduate students (N = 612) who completed the BVAQ, using latent profile analysis (LPA). Based on observed responses to the five BVAQ subscales, consistent with previous studies, our results did not find support for the four proposed alexithymia subtypes. Rather, our results suggested LPA solutions that correspond to individuals with various degrees of alexithymia 'severity'. Although further studies are needed, especially with clinical samples, these results question the idea of four alexithymia subtypes and suggest that the implementation of these subtypes into various research studies may be a premature endeavour.


Assuntos
Sintomas Afetivos , Estudantes , Humanos , Inquéritos e Questionários
12.
J Psychosom Res ; 141: 110329, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33316631

RESUMO

OBJECTIVE: The alexithymia personality construct encompasses difficulties identifying and describing feelings, restricted imaginal processes, and an externally oriented cognitive style. The construct was derived initially from observations of patients with classic psychosomatic diseases. The self-report 20-item Toronto Alexithymia Scale (TAS-20) is the most frequently used measure to assess alexithymia. A concern associated with the TAS-20 is whether individuals can accurately self-report difficulties identifying and describing feelings if they are deficient in those abilities. To address this issue, we sought to develop and validate an informant form (version) of the TAS-20, the 20-item Toronto Alexithymia Scale - Informant Form (TAS-20-IF). METHOD: We employed a three-phase methodological strategy. In the first phase, items from the TAS-20 were re-written into a third person version by a team of experts. In the second phase, the "traditional" three-factor structure was tested in the TAS-20-IF using confirmatory factor analysis in a large sample of young adults (N = 857). The third phase was conducted with another sample (N = 430) composed of "informants" (n = 215), who completed the TAS-20-IF, and "targets" (n = 215), who completed the TAS-20 (informants were nominated by the targets). RESULTS: The psychometric properties (items and scales) of both versions were adequate and the three-factor structure of the TAS-20-IF was supported; the correlation between the two versions was statistically significant and the factor structures were similar. CONCLUSION: Although further research is needed to replicate these findings, especially in clinical samples, the results support the reliability and validity of the TAS-20-IF.


Assuntos
Sintomas Afetivos/psicologia , Psicometria/métodos , Adolescente , Adulto , Dissacarídeos , Feminino , Humanos , Masculino , Reprodutibilidade dos Testes , Inquéritos e Questionários , Adulto Jovem
14.
Environ Toxicol Chem ; 40(2): 454-472, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33201544

RESUMO

Mercury (Hg) is a toxic metal that accumulates in organisms and biomagnifies along food webs; hence, long-lived predators such as seabirds are at risk as a result of high Hg bioaccumulation. Seabirds have been widely used to monitor the contamination of marine ecosystems. In the present study, we investigated Hg concentrations in blood, muscle, and feathers of 7 procellariform seabirds breeding on the Chatham Islands, New Zealand. Using bulk and compound-specific stable isotope ratios of carbon and nitrogen as a proxy of trophic position and distribution, we also tested whether Hg contamination is related to the species-specific feeding ecology. Mercury exposure varied widely within the seabird community. The highest contaminated species, the Magenta petrel, had approximately 29 times more Hg in its blood than the broad-billed prion, and approximately 35 times more Hg in its feathers than the grey-backed storm petrel. Variations of Hg concentrations in blood and feathers were significantly and positively linked to feeding habitats and trophic position, highlighting the occurrence of efficient Hg biomagnification processes along the food web. Species and feeding habitats were the 2 main drivers of Hg exposure within the seabird community. The Pterodroma species had high blood and feather Hg concentrations, which can be caused by their specific physiology and/or because of their foraging behavior during the interbreeding period (i.e., from the Tasman Sea to the Humboldt Current system). These 2 threatened species are at risk of suffering detrimental effects from Hg contamination and further studies are required to investigate potential negative impacts, especially on their reproduction capability. Environ Toxicol Chem 2021;40:454-472. © 2020 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.


Assuntos
Mercúrio , Animais , Aves , Ecossistema , Monitoramento Ambiental , Plumas/química , Cadeia Alimentar , Ilhas , Mercúrio/análise , Nova Zelândia
16.
J Psychosom Res ; 131: 109940, 2020 Jan 23.
Artigo em Inglês | MEDLINE | ID: mdl-32007790

RESUMO

OBJECTIVE: Twenty-five years ago, this journal published two articles reporting the development and initial validation of the 20-Item Toronto Alexithymia Scale (TAS-20). Since then the literature on alexithymia has burgeoned with the vast majority of this research using the TAS-20, including multiple language translations of the scale. METHOD: In this article we review the psychometric literature evaluating various aspects of the reliability and validity of the TAS-20 and examine some of the controversies surrounding the scale and the construct it assesses. We reflect on the ways in which the TAS-20 has advanced the measurement of the construct and theory of alexithymia. We also discuss recent developments and some future directions for the measurement of alexithymia. RESULTS: Although not without some controversy, the preponderance of the accumulated evidence over a 25-year period supports various aspects of the reliability and validity of the TAS-20, including findings from confirmatory factor analytic and convergent and discriminant validity studies which are consistent with Nemiah et al.'s (Nemiah et al., 1976 [3]) and Taylor and colleagues (Taylor et al., 1997 [9]) theoretical formulations and definition of the alexithymia construct. CONCLUSIONS: Based on the accumulated empirical evidence of 25 years, we conclude that the TAS-20 is a reliable and valid instrument and accurately reflects and measures the construct as it was originally defined by Nemiah et al. Nemiah et al. (1976) [3] as composed of deficits in affect awareness and expression and pensée opératoire (operational thinking). Clinicians and researchers can use the TAS-20 to confidently measure alexithymia, the roots of which have foundations in psychosomatic medicine.

17.
PLoS One ; 14(8): e0219986, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31386672

RESUMO

We present the first study to examine the year-round distribution, activity patterns, and habitat use of one of New Zealand's most common seabirds, the fluttering shearwater (Puffinus gavia). Seven adults from Burgess Island, in the Hauraki Gulf, and one individual from Long Island, in the Marlborough Sounds, were successfully tracked with combined light-saltwater immersion loggers for one to three years. Our tracking data confirms that fluttering shearwaters employ different overwintering dispersal strategies, where three out of eight individuals, for at least one of the three years when they were being tracked, crossed the Tasman Sea to forage over coastal waters along eastern Tasmania and southeastern Australia. Resident birds stayed confined to waters of northern and central New Zealand year-round. Although birds frequently foraged over pelagic shelf waters, the majority of tracking locations were found over shallow waters close to the coast. All birds foraged predominantly in daylight and frequently visited the colony at night throughout the year. We found no significant inter-seasonal differences in the activity patterns, or between migratory and resident individuals. Although further studies of inter-colony variation in different age groups will be necessary, this study presents novel insights into year-round distribution, activity patterns and habitat use of the fluttering shearwater, which provide valuable baseline information for conservation as well as for further ecological studies.


Assuntos
Aves , Ecossistema , Migração Animal , Animais , Conservação dos Recursos Naturais , Estações do Ano
18.
J Am Psychoanal Assoc ; 67(3): 425-454, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31291756

RESUMO

Although there is an extensive psychoanalytic literature on perversion, and numerous articles about creativity, few authors have explored relations between creativity and perversion. In particular, the role of childhood trauma and its impact on object relations has not been examined in patients with perversions whose creativity is blocked. In association with preoedipal anxieties and fantasies, childhood trauma can not only contribute to the development of perversion, but can also inhibit or distort the creative process by establishing an inner world characterized by the presence of a threatening internal bad object and the elusiveness of an internal good object. Though it is essential to help these patients establish an identification with the phallic father, an internal good maternal object, in the form of a muse, needs to be retrieved to bring inspiration and reduce the anxieties generated by an internal bad object, thereby facilitating the pursuit of authentic creative work. A detailed case report illustrates how this theoretical perspective guided the treatment approach to a male patient with macrophilia who was struggling to realize his creative potential.


Assuntos
Criatividade , Fantasia , Transtornos Parafílicos/psicologia , Humanos , Interpretação Psicanalítica , Teoria Psicanalítica
19.
Psychodyn Psychiatry ; 47(2): 149-165, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31107166

RESUMO

The psychoanalytic concept of an "anal universe" is a type of alternative universe in which reality is denied and falsehood prevails. This essay demonstrates how this concept illuminates much of the confusion and distortion of truth generated by the Trump administration. The author comments on several behaviors of President Trump and his administration including perverse thinking and lying, mocking disabled people, demeaning women, labeling journalists as enemies of the people, encouraging regressive forces in groups, and promoting policies that cruelly affect immigrants and refugees. The author also comments on the primacy of the male phallus in American politics. He contrasts the spatial metaphor of an "anal universe," where there is distortion of language and an absence of moral constraints and ethical principles, with the metaphor of a feminine psychic space, which enhances the capacity for symbolic thinking and the generation of creative ideas and solutions.


Assuntos
Princípios Morais , Política , Humanos , Estados Unidos
20.
Mol Cytogenet ; 12: 3, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30733831

RESUMO

BACKGROUND: Nodal marginal zone B-cell lymphoma is a rare entity in which the cytogenetic findings are not well defined. The t(2;14)(p24;q32) has previously been reported in three patients with blastic mantle cell lymphoma and one patient with follicular lymphoma. This rearrangement has not been reported previously in a patient with a diagnosis of nodal marginal zone B-cell lymphoma. CASE PRESENTATION: We present a male patient who presented with lymphadenopathy. On the basis of his clinicoradiologic presentation, morphological appearances, immunophenotype and molecular findings he was determined to have a diagnosis of nodal marginal zone B-cell lymphoma. Cytogenetic analysis demonstrated a t(2;14)(p24;q32). Further FISH testing showed this rearrangement to involve the MYCN and IGH genes. CONCLUSIONS: We present the first patient with a diagnosis of nodal marginal zone B-cell lymphoma with a t(2;14)(p24;q32). This rearrangement has been described in three other patients who have had a diagnosis of lymphoma. Our findings suggest this rearrangement is not specific to mantle cell lymphoma or follicular lymphoma. The number of cases described are still too low to draw firm conclusions regarding the nature of this rearrangement. In order to refine the clinical and prognostic picture of this finding, publication of further cases is required.

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