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1.
PhytoKeys ; 232: 145-166, 2023.
Article in English | MEDLINE | ID: mdl-37780180

ABSTRACT

Four new species are described from central and eastern Angola and adjacent NW Zambia. All occur in Kalahari sand savannas rich in endemic and more widely distributed geoxylic suffrutices. Despite being known from very few collections, the conservation status of one of these new species is assessed as Least Concern, as these grasslands are nutrient-poor, are in remote sparsely populated areas, and are not threatened with conversion to agriculture. The remaining three are treated as Data Deficient. In addition, one new combination is provided for Ancylanthosrubiginosus Desf. under Vangueria as V.rubiginosa (Desf.) Lantz is an illegitimate later homonym. We also make orthographic corrections to specific epithets commemorating Ilse von Nolde, a collector who made important collections from Quela in Malange in the 1930s.

2.
Mol Phylogenet Evol ; 182: 107702, 2023 05.
Article in English | MEDLINE | ID: mdl-36781032

ABSTRACT

The angiosperm family Primulaceae is morphologically diverse and distributed nearly worldwide. However, phylogenetic uncertainty has obstructed the identification of major morphological and biogeographic transitions within the clade. We used target capture sequencing with the Angiosperms353 probes, taxon-sampling encompassing nearly all genera of the family, tree-based sequence curation, and multiple phylogenetic approaches to investigate the major clades of Primulaceae and their relationship to other Ericales. We generated dated phylogenetic trees and conducted broad-scale biogeographic analyses as well as stochastic character mapping of growth habit. We show that Ardisia, a pantropical genus and the largest in the family, is not monophyletic, with at least 19 smaller genera nested within it. Neotropical members of Ardisia and several smaller genera form a clade, an ancestor of which arrived in the Neotropics and began diversifying about 20 Ma. This Neotropical clade is most closely related to Elingamita and Tapeinosperma, which are most diverse on islands of the Pacific. Both Androsace and Primula are non-monophyletic by the inclusion of smaller genera. Ancestral state reconstructions revealed that there have either been parallel transitions to an herbaceous habit in Primuloideae, Samolus, and at least three lineages of Myrsinoideae, or a common ancestor of nearly all Primulaceae was herbaceous. Our results provide a robust estimate of phylogenetic relationships across Primulaceae and show that a revised classification of Myrsinoideae and several other clades within the family is necessary to render all genera monophyletic.


Subject(s)
Primulaceae , Phylogeny , Primulaceae/genetics , Base Sequence , Sequence Analysis, DNA , DNA, Plant/genetics
3.
J Foot Ankle Res ; 13(1): 17, 2020 Apr 25.
Article in English | MEDLINE | ID: mdl-32334625

ABSTRACT

BACKGROUND: Valid and reliable outcome measure enable measurement of health care service impact. There are limited valid and reliable outcome measures for use in podiatry practice to measure the impact of treatment. This research aimed to test the face validity of the AusTOMs for Physiotherapy (AusTOMs-PT), it's adaptability to podiatry clinical practice and the reliability of its use with podiatrists. METHODS: Stage 1 used a nominal group technique with podiatrists who worked in public and/or private settings. All podiatrists underwent self-directed training in the AusTOMs framework and measures prior to interviews or focus group discussion. Discussion was centred about transferability of the core scales of the AusTOMs-PT and an adjunct measure, AusTOMs for Occupational Therapy (AusTOMs-OT) to podiatry practice. Stage 2 used 10 case studies representative of people who had foot or ankle concerns. Podiatrists were recruited and trained in the use of the relevant AusTOMs-PT scales. Podiatrists individually scored the cases at two timepoints (1 month apart) using the six scales from the AusTOMs-PT deemed by stage 1 as relevant to podiatry. Intra and inter-rater reliability of scales were determined using intraclass correlation coefficients (ICCs). RESULTS: Thirteen podiatrists participated in individual or focus group interviews in Stage 1. Consensus was gained on six of the nine core scales adopted from the AusTOMs-PT. These were 1. Balance and Postural Control, 3. Musculoskeletal Movement Related Functions, 4. Neurological Movement Related Functions, 5. Pain, 7. Sensory Functions, 8. Skin Functions. Each core scale rated the functional domains of Impairment, Activity Limitation, Participation Restriction and Wellbeing/Distress relating to that presentation of goals of the person in the case study. There were 22 podiatrists complete training and scored two rounds of case studies using the six scales in Stage 2. There were 91%(n = 20) participants with an intra-rater ICC > 0.5 (moderate or greater). Each domain had an inter-rater reliability of > 0.9 (excellent) during the first round. CONCLUSIONS: The AusTOMs-PT for use in podiatry may be implemented to record change in impairment, function, participation and wellbeing of people receiving podiatry treatment. Podiatry specific training and mentoring, together with repeated use could be expected to improve intra-reliability.


Subject(s)
Outcome Assessment, Health Care/standards , Physical Therapy Modalities/statistics & numerical data , Physical Therapy Specialty/standards , Podiatry/standards , Adolescent , Adult , Australia , Child , Female , Humans , Male , Middle Aged , Physical Therapy Specialty/methods , Podiatry/methods , Reproducibility of Results , Young Adult
4.
Child Care Health Dev ; 46(3): 310-319, 2020 05.
Article in English | MEDLINE | ID: mdl-31957909

ABSTRACT

BACKGROUND: Idiopathic toe walking (ITW) is an exclusionary diagnosis resulting in a child walking on the balls of their feet. Preferred treatment options may be due to the severity of the toe or the health professional preference There are limited guidelines supporting consistent treatment recommendations for this condition. This research aimed to understand agreement between health professionals' knowledge of evidence for common treatment strategies for ITW and if health professionals supported these strategies being used in clinical practice. METHODS: An international online survey was opened to registered health professionals who treat children with ITW between July 2017 and March 2018. The survey had two components: (a) demographic variables and variables relating to knowledge of evidence about ITW treatments and (b) support for common treatment strategies. Additional data on strategy use, referrals, and preference were collected. Kappa statistics described intra-rater agreement between evidence knowledge and support. Multivariable regression analyses identified factors associated with the 10 most commonly preferred treatments. RESULTS: There were 908 international responses. Kappa agreement for paired correct responses determined a fair agreement for evidence support knowledge for four strategies including watch and wait (Kappa = 0.24), stretching (Kappa = 0.30), sensory integration strategies (Kappa = 0.40), and motor control strategies (Kappa = 0.24) and moderate responses for 13 others. No strategies had greater than moderate agreement between correct knowledge of evidence and strategy support. Profession, location, number of children seen in practice, and not correctly identifying the evidence factored into many of the most commonly used strategies for ITW (p < .05). CONCLUSIONS: The results from this study, which confirm a variety of interventions, are utilized in the management of ITW around the world. Furthermore, there remains a disconnection between paediatric health professionals' understanding of the evidence of common treatment strategies of ITW and a consensus for the treatment of this condition.


Subject(s)
Clinical Competence , Evidence-Based Practice , Gait/physiology , Pediatrics , Toes , Child , Child, Preschool , Female , Humans , Male , Orthopedic Procedures , Orthotic Devices , Physical Therapy Modalities , Practice Patterns, Physicians' , Surveys and Questionnaires
5.
Front Plant Sci ; 10: 1102, 2019.
Article in English | MEDLINE | ID: mdl-31620145

ABSTRACT

The world's herbaria collectively house millions of diverse plant specimens, including endangered or extinct species and type specimens. Unlocking genetic data from the typically highly degraded DNA obtained from herbarium specimens was difficult until the arrival of high-throughput sequencing approaches, which can be applied to low quantities of severely fragmented DNA. Target enrichment involves using short molecular probes that hybridise and capture genomic regions of interest for high-throughput sequencing. In this study on herbariomics, we used this targeted sequencing approach and the Angiosperms353 universal probe set to recover up to 351 nuclear genes from 435 herbarium specimens that are up to 204 years old and span the breadth of angiosperm diversity. We show that on average 207 genes were successfully retrieved from herbarium specimens, although the mean number of genes retrieved and target enrichment efficiency is significantly higher for silica gel-dried specimens. Forty-seven target nuclear genes were recovered from a herbarium specimen of the critically endangered St Helena boxwood, Mellissia begoniifolia, collected in 1815. Herbarium specimens yield significantly less high-molecular-weight DNA than silica gel-dried specimens, and genomic DNA quality declines with sample age, which is negatively correlated with target enrichment efficiency. Climate, taxon-specific traits, and collection strategies additionally impact target sequence recovery. We also detected taxonomic bias in targeted sequencing outcomes for the 10 most numerous angiosperm families that were investigated in depth. We recommend that (1) for species distributed in wet tropical climates, silica gel-dried specimens should be used preferentially; (2) for species distributed in seasonally dry tropical climates, herbarium and silica gel-dried specimens yield similar results, and either collection can be used; (3) taxon-specific traits should be explored and established for effective optimisation of taxon-specific studies using herbarium specimens; (4) all herbarium sheets should, in future, be annotated with details of the preservation method used; (5) long-term storage of herbarium specimens should be in stable, low-humidity, and low-temperature environments; and (6) targeted sequencing with universal probes, such as Angiosperms353, should be investigated closely as a new approach for DNA barcoding that will ensure better exploitation of herbarium specimens than traditional Sanger sequencing approaches.

6.
Front Plant Sci ; 10: 1188, 2019.
Article in English | MEDLINE | ID: mdl-31632423

ABSTRACT

The coffee berry borer (Hypothenemus hampei) is the most damaging insect pest of global coffee production. Despite its importance, our knowledge on the insect's natural habitat, range, and wild host species remains poorly known. Using archival sources (mainly herbaria but also other museum collections), we surveyed 18,667 predominantly wild-collected herbarium specimens mostly from Africa, Madagascar, and Asia for coffee berry borer occurrence. A total of 72 incidences were confirmed for presence of the coffee berry borer, with identifications assisted by micro-CT for SEM. Of the 72 positive infestations, all were from tropical African coffee (Coffea) species, of which 32 were from wild (non-cultivated) plants. Of the 32 wild occurrences, 30 were found in C. canephora (robusta coffee), 1 in C. liberica (Liberica coffee), and 1 in C. arabica (Arabica coffee). Our herbarium survey confirms literature and anecdotal reports that the coffee berry borer is indigenous to tropical Africa, and that coffee species, and particularly robusta coffee, are important hosts. We identify the wetter type of Guineo-Congolian forest as either the preferred or exclusive native habitat of the coffee berry borer. Other than coffee, we find no evidence of other naturally occurring hosts. Characters of infestation (e.g., hole position on coffee fruits) infers a certain degree of specificity between the coffee berry borer and its host.

7.
Prosthet Orthot Int ; 39(3): 213-8, 2015 Jun.
Article in English | MEDLINE | ID: mdl-24570017

ABSTRACT

BACKGROUND: There is a paucity of evidence regarding the design of children's footwear in relation to musculoskeletal structure. OBJECTIVES: The aim was to gain consensus regarding where flexibility and support should be given on a school shoe for the 6- to 10-year-olds. STUDY DESIGN: Delphi Questionnaire. METHODS: Recruitment of 10 Allied Health Professionals yielded a consensus group. Those recruited had dedicated experience in paediatrics and foot health. Rounds of questions were delivered to investigate the basis of the opinions made by the group on the location of support and flexibility in a school shoe for the age range identified. RESULTS: Six themes were generated. Four themes gained 100% consensus regarding footwear allowing normal foot movement, footwear allowing normal forefoot function, footwear providing a stable base and the foot being secure in the shoe. Fleiss' kappa calculations revealed 'poor agreement' for the remaining two themes regarding clinical intervention and the purpose of footwear design in the midfoot in both the upper and sole of the shoe. CONCLUSION: The qualitative data generated through discussion have highlighted areas where more understanding and research are required, particularly in understanding how, in the long term, shoe design can affect the developing foot. CLINICAL RELEVANCE: Children's footwear advice is often delivered from experience and personal belief. This article questions current understanding and opinion from clinical experts in the field of paediatric footwear and highlights that there is a lack of knowledge and confidence into the effects of children's footwear. There is a strong requirement for further empirical research to be completed on children's footwear to allow clinicians to formulate relevant and appropriate footwear advice.


Subject(s)
Delphi Technique , Foot Joints/physiology , Range of Motion, Articular/physiology , Schools , Shoes/standards , Surveys and Questionnaires , Biomechanical Phenomena/physiology , Child , Female , Foot Deformities, Acquired/prevention & control , Foot Orthoses , Health Personnel , Humans , Male , Pain/prevention & control , Professional Competence
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