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1.
BMC Palliat Care ; 21(1): 223, 2022 Dec 16.
Artigo em Inglês | MEDLINE | ID: mdl-36527008

RESUMO

INTRODUCTION: Chile presents a context of an aging population and increased life expectancy, leading to many older adults (OA) needing palliative care (PC) during the course of their illness. The SPICT-ES™ is an instrument used to clinically evaluate patients with advanced chronic illness (ACI) to detect PC needs. Validating this instrument in Chile will allow for early detection of OA at risk of clinical deterioration who require this care. OBJECTIVE: Adapt and validate the SPICT-ES™ instrument to identify PC needs among OA in Chile. METHODOLOGY: Study following quantitative design - cross-sectional, descriptive, and developed in three stages: cultural adaptation by expert judgment; preliminary test of the SPICT-ESCH instrument to evaluate reliability and application of the SPICT-ESCH in 292 patients, to determine internal consistency and stability of the instrument. This study was done between January 2019 and July 2021. Participants in the study were nurses and OA from 5 health centers in Santiago, Chile. This study was approved by the Ethics Committee of Universidad de los Andes. RESULTS: In the cultural adaptation with content validity, following expert judgment, all items were kept. Semantic modifications were made on only three of them. A Lawshe coefficient of 84% which determined SPICT-ESCH as an acceptable instrument for the following stages of validation and reliability. The pilot for the new version in Chile, SPICT-ESCH, determined stability and consistency over time, with a Pearson correlation coefficient (ρ) of 0.9167 (p < 0.0001). In the final application of the instrument, to fortify the psychometric evaluation (n = 292) we identified 53.4% positive SPICT-ESCH. The logistical model via OR (< 0.001) showed that the items predicted the positivity of the instrument. The internal consistency obtained was 0.8662, confirming a correlation and intercorrelation between items. 100% of nurses evaluated the SPICT-ESCH as a useful and feasible instrument. CONCLUSION: SPICT-ESCH includes all the relevant indicators for adequate clinical identification of PC needs among the Chilean OA population, who could Benefit from the early introduction of palliative support contributing to their quality of life.


Assuntos
Cuidados Paliativos , Qualidade de Vida , Humanos , Idoso , Reprodutibilidade dos Testes , Estudos Transversais , Chile , Psicometria , Inquéritos e Questionários
2.
Scand J Caring Sci ; 34(3): 762-771, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31667879

RESUMO

BACKGROUND: Timely identification of patients with palliative care needs is a prerequisite for being able to carry out effective and equal palliative care. The Supportive and Palliative Care Indicators Tool (SPICT) identifies patients likely to benefit from a palliative approach. AIM: The main objective was to describe the translation, cross-cultural adaptation and content validation process of the SPICT-SE. In this process, the prefinal SPICT-SE was tested in focus group interviews to explore how the tool was perceived and interpreted by healthcare professionals in a Swedish healthcare context. METHODS: In this qualitative descriptive study, the translation, cross-cultural adaptation and content validation process of the SPICT-SE was based on a recommended method for cross-cultural adaptation of self-report measures. The process included two independent forward translations, a synthesis, and one independent back-translation. An expert committee consolidated all the versions and developed the prefinal version of the SPICT-SE. The prefinal version of the SPICT-SE was tested in four focus group interviews with physicians and nurses engaged in inpatient or outpatient care in south-west Sweden. A thematic analysis of the transcribed interviews was performed. The SPICT-SE was then revised to the final version. RESULTS: In the thematic analysis, four themes were constructed that together described how the SPICT-SE was perceived and interpreted by healthcare professionals: The mindset is familiar and relevant; the tool needs to be adjusted in order to be clearer; the purpose and consequences of the tool are ambiguous; and the tool supports a palliative approach. CONCLUSION: The SPICT-SE has now been successfully translated, culturally adapted and content validated in a Swedish healthcare context.


Assuntos
Comparação Transcultural , Assistência à Saúde Culturalmente Competente/normas , Diagnóstico Precoce , Enfermagem de Cuidados Paliativos na Terminalidade da Vida/normas , Cuidados Paliativos/normas , Guias de Prática Clínica como Assunto , Psicometria/normas , Adulto , Idoso , Idoso de 80 Anos ou mais , Técnicas de Apoio para a Decisão , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Inquéritos e Questionários , Suécia , Traduções
3.
New Phytol ; 220(2): 517-525, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30035303

RESUMO

Incompleteness of reference sequence databases and unresolved taxonomic relationships complicates taxonomic placement of fungal sequences. We developed Protax-fungi, a general tool for taxonomic placement of fungal internal transcribed spacer (ITS) sequences, and implemented it into the PlutoF platform of the UNITE database for molecular identification of fungi. With empirical data on root- and wood-associated fungi, Protax-fungi reliably identified (with at least 90% identification probability) the majority of sequences to the order level but only around one-fifth of them to the species level, reflecting the current limited coverage of the databases. Protax-fungi outperformed the Sintax and Rdb classifiers in terms of increased accuracy and decreased calibration error when applied to data on mock communities representing species groups with poor sequence database coverage. We applied Protax-fungi to examine the internal consistencies of the Index Fungorum and UNITE databases. This revealed inconsistencies in the taxonomy database as well as mislabelling and sequence quality problems in the reference database. The according improvements were implemented in both databases. Protax-fungi provides a robust tool for performing statistically reliable identifications of fungi in spite of the incompleteness of extant reference sequence databases and unresolved taxonomic relationships.


Assuntos
DNA Espaçador Ribossômico/genética , Fungos/classificação , Fungos/genética , Internet , Sequência de Bases , Bases de Dados Genéticas , Raízes de Plantas/microbiologia , Madeira/microbiologia
4.
BMC Palliat Care ; 17(1): 27, 2018 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-29454343

RESUMO

BACKGROUND: The Supportive and Palliative Care Indicators tool (SPICT) supports the identification of patients with potential palliative care (PC) needs. An Austrian-German expert group translated SPICT into German (SPICT-DE) in 2014. The aim of this study was the systematic development, refinement, and testing of SPICT-DE for its application in primary care (general practice). METHODS: SPICT-DE was developed by a multiprofessional research team according to the TRAPD model: translation, review, adjudication, pretesting and documentation. In a pretest, five general practitioners (GPs) rated four case vignettes of patients with different PC needs. GPs were asked to assess whether each patient might benefit from PC or not (I) based on their subjective appraisal ("usual practice") and (II) by using SPICT-DE. After further refinement, two focus groups with 28 GPs (68% with a further qualification in PC) were conducted to test SPICT-DE. Again, participants rated two selected case vignettes (I) based on their subjective appraisal and (II) by using SPICT-DE. Afterwards, participants reflected the suitability of SPICT-DE for use in their daily practice routine within the German primary care system. Quantitative data were analysed with descriptive statistics and non-parametric tests for small samples. Qualitative data were analysed by conventional content analysis. Focus group discussion was analysed combining formal and conventional content analysis. RESULTS: Compared to the spontaneous rating of the case vignettes based on subjective appraisal, participants in both the pretest and the focus groups considered PC more often as being beneficial for the patients described in the case vignettes when using SPICT-DE. Participants in the focus groups agreed that SPICT-DE includes all relevant indicators necessary for an adequate clinical identification of patients who might benefit from PC. CONCLUSIONS: SPICT-DE supports the identification of patients who might benefit from PC and seems suitable for routine application in general practice in Germany. The systematic development, refinement, and testing of SPICT-DE in this study was successfully completed by using a multiprofessional and participatory approach.


Assuntos
Técnicas de Apoio para a Decisão , Cuidados Paliativos/métodos , Psicometria/normas , Idoso , Idoso de 80 Anos ou mais , Áustria , Feminino , Grupos Focais , Alemanha , Humanos , Masculino , Psicometria/instrumentação , Psicometria/métodos , Reprodutibilidade dos Testes
5.
Proteomics ; 16(13): 1915-27, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27198063

RESUMO

Site-specific chemical cross-linking in combination with mass spectrometry analysis has emerged as a powerful proteomic approach for studying the three-dimensional structure of protein complexes and in mapping protein-protein interactions (PPIs). Building on the success of MS analysis of in vitro cross-linked proteins, which has been widely used to investigate specific interactions of bait proteins and their targets in various organisms, we report a workflow for in vivo chemical cross-linking and MS analysis in a multicellular eukaryote. This approach optimizes the in vivo protein cross-linking conditions in Arabidopsis thaliana, establishes a MudPIT procedure for the enrichment of cross-linked peptides, and develops an integrated software program, exhaustive cross-linked peptides identification tool (ECL), to identify the MS spectra of in planta chemical cross-linked peptides. In total, two pairs of in vivo cross-linked peptides of high confidence have been identified from two independent biological replicates. This work demarks the beginning of an alternative proteomic approach in the study of in vivo protein tertiary structure and PPIs in multicellular eukaryotes.


Assuntos
Proteínas de Arabidopsis/química , Arabidopsis/metabolismo , Reagentes de Ligações Cruzadas/química , Mapeamento de Interação de Proteínas/métodos , Proteômica/métodos , Espectrometria de Massas em Tandem/métodos , Sequência de Aminoácidos , Arabidopsis/química , Proteínas de Arabidopsis/metabolismo , Reagentes de Ligações Cruzadas/metabolismo , Modelos Moleculares , Peptídeos/análise , Peptídeos/metabolismo , Conformação Proteica , Software
6.
Zookeys ; 1197: 127-136, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38651113

RESUMO

Identification of fruit fly larvae is difficult due to the limited morphological characteristics present. However, this is the stage at which fruit flies are intercepted at ports of entry through horticultural imports. Molecular tools are useful but are time-consuming and expensive compared to morphological identifications. This project aims to use available information from the literature and our own research to build a multi-entry identification key for thirteen tephritid species and species groups that are of economic concern for the European Union. Third-instar larvae were obtained from different regions and hosts. Thirteen species or representatives of species groups were obtained, including Ceratitis, Dacus, Bactrocera and Zeugodacus spp. The cephalopharyngeal skeletons were dissected out, cleared in a 10% NaOH solution, dehydrated and mounted in Euparal on glass slides. Images of at least 20 larvae/species were captured using a compound microscope fitted with a camera. Measurements were taken of the mounted mandibles and the number of tubules and their position in the anterior spiracles in relation to the cephalic skeleton were noted. Differences between morphometric parameters were tested via ANOVA and verified using discriminant function analysis. A matrix was compiled including nine characters for which significant inter-specific differentiation was preliminarily detected. The key was converted into a mobile application by LucID.

7.
Clin Chim Acta ; 561: 119811, 2024 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-38879064

RESUMO

BACKGROUND: Patient registries are crucial for rare disease management. However, manual registry construction is labor-intensive and often not user-friendly. Our goal is to establish Hong Kong's first computer-assisted patient identification tool for rare diseases, starting with inborn errors of metabolism (IEM). METHODS: Patient data from 2010 to 2019 was retrieved from electronic databases. Through big data analytics, patient data were filtered based on specific IEM-related biochemical and genetic tests. Clinical notes were analyzed using a rule-based natural language processing technique called regular expression. The algorithm classified each extracted paragraph as "IEM-related" or "not IEM-related." Pathologists reviewed the paragraphs for curation, and the algorithm's performance was evaluated. RESULTS: Out of 46,419 patients with IEM-related tests, the algorithm identified 100 as "IEM-related." After pathologists' validation, 96 cases were confirmed as true IEM, with 1 uncertain case and 3 false positives. A secondary ascertainment yielded a sensitivity of 92.3% compared to our previously published IEM cohort. CONCLUSIONS: Our artificial intelligence approach provides a novel method to identify IEM patients, facilitating the creation of a centralized, computer-assisted rare disease patient registry at the local and national levels. This data can potentially be accessed by multiple stakeholders for collaborative research and to enhance healthcare management for rare diseases.


Assuntos
Big Data , Erros Inatos do Metabolismo , Doenças Raras , Sistema de Registros , Humanos , Doenças Raras/diagnóstico , Erros Inatos do Metabolismo/diagnóstico , Algoritmos , Análise de Dados , Masculino , Feminino
8.
Healthcare (Basel) ; 11(4)2023 Feb 10.
Artigo em Inglês | MEDLINE | ID: mdl-36833058

RESUMO

Electronic healthcare records (EHRs) are a rich source of information with a range of uses in secondary research. In the United Kingdom, there is no pan-national or nationally accepted marker indicating veteran status across all healthcare services. This presents significant obstacles to determining the healthcare needs of veterans using EHRs. To address this issue, we developed the Military Service Identification Tool (MSIT), using an iterative two-staged approach. In the first stage, a Structured Query Language approach was developed to identify veterans using a keyword rule-based approach. This informed the second stage, which was the development of the MSIT using machine learning, which, when tested, obtained an accuracy of 0.97, a positive predictive value of 0.90, a sensitivity of 0.91, and a negative predictive value of 0.98. To further validate the performance of the MSIT, the present study sought to verify the accuracy of the EHRs that trained the MSIT models. To achieve this, we surveyed 902 patients of a local specialist mental healthcare service, with 146 (16.2%) being asked if they had or had not served in the Armed Forces. In total 112 (76.7%) reported that they had not served, and 34 (23.3%) reported that they had served in the Armed Forces (accuracy: 0.84, sensitivity: 0.82, specificity: 0.91). The MSIT has the potential to be used for identifying veterans in the UK from free-text clinical documents and future use should be explored.

9.
J Forensic Sci ; 65(6): 2000-2007, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32692413

RESUMO

Although there is clinical applicability of the palatal rugae as an identification tool in forensic odontology, controversy exists whether the palatal rugae patterns are stable or variable. The greater the genetic component, the higher the probability that palatal rugae patterns are stable. The aim of this study was to compare the palatal rugae morphology between full siblings and the proportion of variability due to genetic component. This cross-sectional study was conducted on digital models of 162 siblings aged 15-30 years old. The palatal rugae patterns were assessed with Thomas and Kotze (1983) classification using Geomagic Studio software (3D Systems, Rock Hill, SC). The palatal rugae morphology between siblings showed significantly similar characteristics for total number of left rugae (p = 0.001), left primary rugae (p = 0.017), secondary rugae for right (p = 0.024) and left sides (p = 0.001), right straight rugae (p = 0.010), and right convergent rugae (p = 0.005) accounting for at least 6.25%-12.8% of the variability due to heredity. Despite the similarities found, the palatal rugae patterns showed significant differences between siblings of at least 46.9% (p = 0.001). Zero heritability was found in 9 of the 14 rugae patterns. Meanwhile, total number of rugae, primary, backward, and convergent rugae showed moderate heritability (h2  > 0.3) and total number of secondary rugae showed high heritability (h2  > 0.6). In conclusion, despite the individuality characteristics, an appreciable hereditary component is observed with significant similarities found between sibling pairs and the palatal rugae patterns were both environmentally and genetically influenced.


Assuntos
Palato Duro/anatomia & histologia , Irmãos , Adolescente , Adulto , Estudos Transversais , Análise Discriminante , Feminino , Odontologia Legal , Humanos , Processamento de Imagem Assistida por Computador , Imageamento Tridimensional , Masculino , Modelos Dentários , Estudos de Amostragem , Adulto Jovem
10.
Ger Med Sci ; 18: Doc02, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32047417

RESUMO

Objective: The systematic identification of patients who are at risk of deteriorating and dying is the prerequisite for the provision of palliative care (PC). This study aimed to investigate the feasibility and practicability of the German version of the Supportive and Palliative Care Indicators Tool (SPICT-DE) for the systematic identification of these patients in general practice. Methods: In the beginning of 2017, twelve general practitioners (GPs; female n=6) were invited to take part in the study. GPs were asked to apply the SPICT-DE in everyday practice over a period of two months in patients with chronic progressive diseases. Six months after initial assessment, a follow-up survey revealed how the clinical situation of the initially identified patients had changed and which PC actions had been initiated by GPs. In addition, GPs gave feedback on the practicability of SPICT-DE in daily routine. Results: 10 of the 12 GPs (female n=5, median age 46 years, range 38-68) participated in both the two-month assessment period and the follow-up survey. A total of 79 patients (female n=40, median age 79 years, range 44-94) was assessed with the SPICT-DE. Main diagnoses were predominately of cardio-vascular (n=28) or oncological (n=26) origin. Follow-up after six months showed that 38 patients (48%) went through at least one crisis during the course of disease and almost one third (n=26) had died. The majority of GPs (n=7) considered the SPICT-DE to be practical in daily routine and helpful in identifying patients who might benefit from PC. Seven GPs indicated that they would use the SPICT-DE as part of everyday practice. Conclusions: The SPICT-DE seems to be a practical tool supporting the systematic identification of critically ill and dying patients in general practice.


Assuntos
Doença Crônica , Estado Terminal , Indicadores Básicos de Saúde , Cuidados Paliativos , Psicometria/métodos , Doente Terminal/estatística & dados numéricos , Idoso , Doença Crônica/classificação , Doença Crônica/epidemiologia , Doença Crônica/terapia , Indicadores de Doenças Crônicas , Estado Terminal/mortalidade , Estado Terminal/terapia , Feminino , Clínicos Gerais , Alemanha/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Cuidados Paliativos/métodos , Cuidados Paliativos/organização & administração , Seleção de Pacientes , Atenção Primária à Saúde/métodos , Atenção Primária à Saúde/normas , Melhoria de Qualidade
11.
J Pain Symptom Manage ; 57(2): 266-272.e1, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30447382

RESUMO

CONTEXT: Understanding the prevalence and characteristics of primary care outpatients being at risk of deteriorating and dying may allow general practitioners (GPs) to identify them and initiate end-of-life discussions. OBJECTIVES: This study aimed to investigate the prevalence and characteristics of primary care outpatients being at risk of deteriorating and dying, as determined by the Supportive and Palliative Care Indicators Tool (SPICT™). METHODS: A multicenter cross-sectional observational study was conducted at 17 clinics with 22 GPs. We enrolled all patients aged ≥65 years who visited the GPs in March 2017. We used the Japanese version of the SPICT to identify patients being at risk of deteriorating and dying. We assessed the demographic and clinical characteristics of enrolled patients. RESULTS: In total, 382 patients with a mean age of 77.4 ± 7.9 years were investigated. Sixty-six patients (17.3%) had ≥2 positive general indicators or ≥1 positive disease-specific indicator in the SPICT-JP. Patients with dementia/frailty, neurological disease, cancer, and kidney disease showed a significantly elevated risk of deteriorating and dying, whereas patients with other specific disease did not. The patients at risk were significantly older and less likely to be living with family at home. They also had a higher Charlson Comorbidity Index score and a lower Palliative Performance Scale score. CONCLUSION: Among primary care outpatients aged over 65 years, 17.3% were at risk of deteriorating and dying regardless of their estimated survival time, and many outpatients at risk were not receiving optimal multidisciplinary care.


Assuntos
Atenção Primária à Saúde/estatística & dados numéricos , Medição de Risco , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Comorbidade , Estudos Transversais , Progressão da Doença , Feminino , Clínicos Gerais , Humanos , Masculino , Pessoa de Meia-Idade , Pacientes Ambulatoriais , Prevalência , Fatores de Risco , Assistência Terminal
12.
Biotechnol Rep (Amst) ; 22: e00319, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30911471

RESUMO

The state-space model is identified using the identification tool of MATLAB, and the best fit of 99% of measured and simulated data was obtained. Further, state-space model was converted to a transfer function model and finally simplified to an unstable second order time-delay transfer function model. Internal model control based proportional integral derivative (IMC-PID) controller design method was proposed for unstable second order time delay with RHP zero (USOPDT) and successfully tested to the nonlinear bioreactor process model. The temperature of the bioreactor was successfully controlled by proposed controller in both cases setpoint and disturbance change. The performance of the controller was evaluated in terms of IAE, ISE, ITAE and the corresponding values of 20.99, 49.02 and 292.50 were obtained respectively. Proposed method shows better closed-loop performance in terms of IAE and settling time than the other reported methods for temperature control of bioreactor.

13.
Zookeys ; (784): 127-138, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30279633

RESUMO

BumbleKey is a matrix-based, interactive key to all 45 species of bumblebees of Italy and Corsica. The key allows to identify adult males and females (queens and workers) using morphological characters. The key is published online, open-access, at http://www.interactive-keys.eu/bumblekey/default.aspx.

14.
J Palliat Med ; 21(7): 992-998, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29425053

RESUMO

BACKGROUND: Identifying patients who require palliative care approach is challenging for family physicians, even though several identification tools have been developed for this purpose. OBJECTIVE: To explore the prevalence and characteristics of family practice patients who need palliative care approach as determined using Supportive and Palliative Care Indicators Tool (SPICT™, April 2015) in Japan. DESIGN: Single-center cross-sectional study. SETTING/SUBJECTS: We enrolled all patients ≥65 years of age who visited the chief researcher's outpatient clinic in October 2016. MEASUREMENTS: We used Japanese version of SPICT (SPICT-J) to identify patients who need palliative care approach. We assessed patients' backgrounds and whether they had undergone advance care planning with their family physicians. RESULTS: This study included 87 patients (61 females) with a mean age of 79.0 ± 7.4 years. Eight patients (9.2%) were identified as needing palliative care approach. The mean age of patients who needed this approach was 82.3 ± 8.3 years and main underlying conditions were heart/vascular disease (37.5%), dementia/frailty (25.0%), and respiratory disease (12.5%). Only two of eight patients identified as needing palliative care approach had discussed advance care planning with their family physicians. CONCLUSIONS: In family practice, 9.2% of outpatients ≥65 years of age were identified as needing palliative care approach. Family physicians should carefully evaluate whether outpatients need palliative care approach.


Assuntos
Técnicas de Apoio para a Decisão , Cuidados Paliativos/normas , Seleção de Pacientes , Assistência Terminal/normas , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Humanos , Japão , Masculino , Psicometria , Traduções
15.
Genomics Proteomics Bioinformatics ; 13(3): 192-9, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26216453

RESUMO

Presumptive identification of different Enterobacteriaceae species is routinely achieved based on biochemical properties. Traditional practice includes manual comparison of each biochemical property of the unknown sample with known reference samples and inference of its identity based on the maximum similarity pattern with the known samples. This process is labor-intensive, time-consuming, error-prone, and subjective. Therefore, automation of sorting and similarity in calculation would be advantageous. Here we present a MATLAB-based graphical user interface (GUI) tool named BioCluster. This tool was designed for automated clustering and identification of Enterobacteriaceae based on biochemical test results. In this tool, we used two types of algorithms, i.e., traditional hierarchical clustering (HC) and the Improved Hierarchical Clustering (IHC), a modified algorithm that was developed specifically for the clustering and identification of Enterobacteriaceae species. IHC takes into account the variability in result of 1-47 biochemical tests within this Enterobacteriaceae family. This tool also provides different options to optimize the clustering in a user-friendly way. Using computer-generated synthetic data and some real data, we have demonstrated that BioCluster has high accuracy in clustering and identifying enterobacterial species based on biochemical test data. This tool can be freely downloaded at http://microbialgen.du.ac.bd/biocluster/.


Assuntos
Algoritmos , Técnicas de Tipagem Bacteriana/métodos , Enterobacteriaceae/classificação , Automação , Análise por Conglomerados , Enterobacteriaceae/metabolismo
16.
PeerJ ; 3: e991, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26734510

RESUMO

Species identification-of importance for most biological disciplines-is not always straightforward as cryptic species hamper traditional identification. Fibre-optic near-infrared spectroscopy (NIRS) is a rapid and inexpensive method of use in various applications, including the identification of species. Despite its efficiency, NIRS has never been tested on a group of more than two cryptic species, and a working routine is still missing. Hence, we tested if the four morphologically highly similar, but genetically distinct ant species Tetramorium alpestre, T. caespitum, T. impurum, and T. sp. B, all four co-occurring above 1,300 m above sea level in the Alps, can be identified unambiguously using NIRS. Furthermore, we evaluated which of our implementations of the three analysis approaches, partial least squares regression (PLS), artificial neural networks (ANN), and random forests (RF), is most efficient in species identification with our data set. We opted for a 100% classification certainty, i.e., a residual risk of misidentification of zero within the available data, at the cost of excluding specimens from identification. Additionally, we examined which strategy among our implementations, one-vs-all, i.e., one species compared with the pooled set of the remaining species, or binary-decision strategies, worked best with our data to reduce a multi-class system to a two-class system, as is necessary for PLS. Our NIRS identification routine, based on a 100% identification certainty, was successful with up to 66.7% of unambiguously identified specimens of a species. In detail, PLS scored best over all species (36.7% of specimens), while RF was much less effective (10.0%) and ANN failed completely (0.0%) with our data and our implementations of the analyses. Moreover, we showed that the one-vs-all strategy is the only acceptable option to reduce multi-class systems because of a minimum expenditure of time. We emphasise our classification routine using fibre-optic NIRS in combination with PLS and the one-vs-all strategy as a highly efficient pre-screening identification method for cryptic ant species and possibly beyond.

17.
Zookeys ; (431): 61-78, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25152668

RESUMO

We provide a general overview of features and technical specifications of an online, interactive tool for the identification of scale insects of concern to the U.S.A. ports-of-entry. Full lists of terminal taxa included in the keys (of which there are four), a list of features used in them, and a discussion of the structure of the tool are provided. We also briefly discuss the advantages of interactive keys for the identification of potential scale insect pests. The interactive key is freely accessible on http://idtools.org/id/scales/index.php.

18.
PhytoKeys ; (34): 47-60, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24596492

RESUMO

We present a general overview of features and technical specifications of an original interactive key web application for the identification of Chrysochromulina species. The list of species, originally described as belonging in the genus Chrysochromulina, is given and recent taxonomic changes in species and genera of the order Prymnesiales are provided. We briefly discuss the interest of such a key for the identification of phytoplanktonic species.

19.
Zookeys ; (205): 5-18, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22792031

RESUMO

We provide a general overview of features and technical specifications of an original interactive key web application for the identification of Palaearctic Tachinidae genera. The full list of terminal taxa included in the key, which is the most updated list of genera currently recorded for the Palaearctic Region, is given. We also briefly discuss the need for dealing with detailed and standardized taxa descriptions as a base to keep matrix-based interactive tools easily updated, by proposing a standardized protocol.

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