LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 188

Search options

  1. Article ; Online: Isolating the species element in grass pollen allergy: A review.

    Frisk, Carl A / Adams-Groom, Beverley / Smith, Matt

    The Science of the total environment

    2023  Volume 883, Page(s) 163661

    Abstract: Grass pollen is a leading cause of allergy in many countries, particularly Europe. Although many elements of grass pollen production and dispersal are quite well researched, gaps still remain around the grass species that are predominant in the air and ... ...

    Abstract Grass pollen is a leading cause of allergy in many countries, particularly Europe. Although many elements of grass pollen production and dispersal are quite well researched, gaps still remain around the grass species that are predominant in the air and which of those are most likely to trigger allergy. In this comprehensive review we isolate the species aspect in grass pollen allergy by exploring the interdisciplinary interdependencies between plant ecology, public health, aerobiology, reproductive phenology and molecular ecology. We further identify current research gaps and provide open ended questions and recommendations for future research in an effort to focus the research community to develop novel strategies to combat grass pollen allergy. We emphasise the role of separating temperate and subtropical grasses, identified through divergence in evolutionary history, climate adaptations and flowering times. However, allergen cross-reactivity and the degree of IgE connectivity in sufferers between the two groups remains an area of active research. The importance of future research to identify allergen homology through biomolecular similarity and the connection to species taxonomy and practical implications of this to allergenicity is further emphasised. We also discuss the relevance of eDNA and molecular ecological techniques (DNA metabarcoding, qPCR and ELISA) as important tools in quantifying the connection between the biosphere with the atmosphere. By gaining more understanding of the connection between species-specific atmospheric eDNA and flowering phenology we will further elucidate the importance of species in releasing grass pollen and allergens to the atmosphere and their individual role in grass pollen allergy.
    MeSH term(s) Rhinitis, Allergic, Seasonal ; Pollen/chemistry ; Hypersensitivity ; Allergens/analysis ; Poaceae/genetics
    Chemical Substances Allergens
    Language English
    Publishing date 2023-04-23
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.163661
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Climate change related phenological decoupling in species belonging to the Betulaceae family

    Picornell, Antonio / Smith, Matt / Rojo, Jesús

    Int J Biometeorol. 2023 Jan., v. 67, no. 1 p.195-209

    2023  

    Abstract: Betulaceae species are anemophilous, and allergens from their pollen are a major cause of respiratory allergies in temperate areas where they are widely distributed. It is expected that, due to the strong influence of temperature on Betulaceae phenology, ...

    Abstract Betulaceae species are anemophilous, and allergens from their pollen are a major cause of respiratory allergies in temperate areas where they are widely distributed. It is expected that, due to the strong influence of temperature on Betulaceae phenology, global warming will impact both the distribution and phenology of these species during the coming decades. This study examines potential decoupling of flowering and leafing phenophases in Betulaceae species (i.e. Alnus glutinosa, Betula pendula and Corylus avellana) over long-term (1951–2015) and as shorter (15-year) periods. Phenological phases for flowering and leaf unfolding of Betulaceae species from the Pan-European Phenology (PEP725) database were examined along with maximum and minimum daily temperature data for the periods September–October-November (SON), December-January–February (DJF) and March–April-May (MAM). Significant increases in temperature since 1951 have been recorded in the relevant chilling and forcing periods. Both flowering and leaf unfolding phenophases are advancing, but flowering is advancing faster than leaf unfolding. This is increasing the time between phenophases, although analysis of 15-year periods shows that the pattern of change was not constant. The results presented here represent the most comprehensive analysis of flowering and leaf unfolding phenophases of Betulaceae species using the PEP725 database to date. It is expected that these changes to Betulaceae phenology will continue and that global warming–related phenological decoupling will increase plant stress in Betulaceae populations in central Europe.
    Keywords Alnus glutinosa ; Betula pendula ; Corylus avellana ; climate change ; databases ; leaves ; phenology ; plant stress ; pollen ; temperature ; Central European region
    Language English
    Dates of publication 2023-01
    Size p. 195-209.
    Publishing place Springer Berlin Heidelberg
    Document type Article ; Online
    ZDB-ID 127361-9
    ISSN 0067-8902 ; 0020-7128
    ISSN 0067-8902 ; 0020-7128
    DOI 10.1007/s00484-022-02398-9
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  3. Article: Interlaboratory proficiency test in aerobiology using virtual slides – feasibility study

    Smith, Matt / Šikoparija, Branko

    Grana. 2021 Mar. 04, v. 60, no. 2

    2021  

    Abstract: This study examines the use of Virtual Slide Images with the aim of assessing their efficacy and usability in comparison to traditional microscopy with glass slides for the Quality Control of aerobiological samples. Three glass microscopy slides ... ...

    Abstract This study examines the use of Virtual Slide Images with the aim of assessing their efficacy and usability in comparison to traditional microscopy with glass slides for the Quality Control of aerobiological samples. Three glass microscopy slides containing samples of airborne pollen were digitised. Six counters from two laboratories examined the glass slides and their data were used to calculate assigned values and acceptable coefficients of variation (CV%) for seven pollen types. A total of 24 analysts from 12 countries examined the virtual slides using specialist OlyVIA software. Data from traditional glass and virtual slides were entered into tests for repeatability and intralaboratory reproducibility following the norm EN 16868:2019. Participants also completed a questionnaire reflecting on the efficacy and usability of Virtual Slide Images for interlaboratory Quality Control. Data from traditional glass and virtual slides were comparable but CV% were generally larger for virtual slides than glass slides. Participants who examined < 10% of the slide were more likely to produce results outside the limits of the study. The use of virtual slide technology is not for everyone and, in the current study, we found that opinion was polarised but it was interesting to note that there were no differences in response based on years of experience. There are advantages and disadvantages of the two methods, and we recommend virtual slides are used as an adjunct to glass slides for use in aerobiology Quality Control and other aspects of palynological training and assessment.
    Keywords aerobiology ; computer software ; feasibility studies ; glass ; grana ; microscopy ; palynology ; pollen ; quality control ; questionnaires
    Language English
    Dates of publication 2021-0304
    Size p. 132-145.
    Publishing place Taylor & Francis
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2016533-X
    ISSN 1651-2049 ; 0017-3134
    ISSN (online) 1651-2049
    ISSN 0017-3134
    DOI 10.1080/00173134.2020.1784266
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  4. Article ; Online: Climate change related phenological decoupling in species belonging to the Betulaceae family.

    Picornell, Antonio / Smith, Matt / Rojo, Jesús

    International journal of biometeorology

    2022  Volume 67, Issue 1, Page(s) 195–209

    Abstract: Betulaceae species are anemophilous, and allergens from their pollen are a major cause of respiratory allergies in temperate areas where they are widely distributed. It is expected that, due to the strong influence of temperature on Betulaceae phenology, ...

    Abstract Betulaceae species are anemophilous, and allergens from their pollen are a major cause of respiratory allergies in temperate areas where they are widely distributed. It is expected that, due to the strong influence of temperature on Betulaceae phenology, global warming will impact both the distribution and phenology of these species during the coming decades. This study examines potential decoupling of flowering and leafing phenophases in Betulaceae species (i.e. Alnus glutinosa, Betula pendula and Corylus avellana) over long-term (1951-2015) and as shorter (15-year) periods. Phenological phases for flowering and leaf unfolding of Betulaceae species from the Pan-European Phenology (PEP725) database were examined along with maximum and minimum daily temperature data for the periods September-October-November (SON), December-January-February (DJF) and March-April-May (MAM). Significant increases in temperature since 1951 have been recorded in the relevant chilling and forcing periods. Both flowering and leaf unfolding phenophases are advancing, but flowering is advancing faster than leaf unfolding. This is increasing the time between phenophases, although analysis of 15-year periods shows that the pattern of change was not constant. The results presented here represent the most comprehensive analysis of flowering and leaf unfolding phenophases of Betulaceae species using the PEP725 database to date. It is expected that these changes to Betulaceae phenology will continue and that global warming-related phenological decoupling will increase plant stress in Betulaceae populations in central Europe.
    Language English
    Publishing date 2022-10-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 280324-0
    ISSN 1432-1254 ; 0020-7128
    ISSN (online) 1432-1254
    ISSN 0020-7128
    DOI 10.1007/s00484-022-02398-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Mathematical method for designing superresolution lenses using superoscillations.

    Smith, Matt K / Gbur, Greg

    Optics letters

    2020  Volume 45, Issue 7, Page(s) 1854–1857

    Abstract: We use a new mathematical method to design a superresolution lens using a superoscillation technique based on polynomial roots. We walk through an example of the method using simulations. Our method allows for ease of design by being mathematically and ... ...

    Abstract We use a new mathematical method to design a superresolution lens using a superoscillation technique based on polynomial roots. We walk through an example of the method using simulations. Our method allows for ease of design by being mathematically and conceptually simpler than other methods.
    Language English
    Publishing date 2020-04-01
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4794
    ISSN (online) 1539-4794
    DOI 10.1364/OL.388252
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article: The genome sequence of the two-banded wasp hoverfly,

    Hawkes, William / Wotton, Karl / Smith, Matt

    Wellcome open research

    2021  Volume 6, Page(s) 321

    Abstract: We present a genome assembly from an individual ... ...

    Abstract We present a genome assembly from an individual female
    Language English
    Publishing date 2021-11-24
    Publishing country England
    Document type Journal Article
    ISSN 2398-502X
    ISSN 2398-502X
    DOI 10.12688/wellcomeopenres.17382.1
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Editorial: Climate Change and Aeroallergens.

    Damialis, Athanasios / Smith, Matt / Galán, Carmen

    Frontiers in allergy

    2021  Volume 2, Page(s) 794430

    Language English
    Publishing date 2021-12-20
    Publishing country Switzerland
    Document type Editorial
    ISSN 2673-6101
    ISSN (online) 2673-6101
    DOI 10.3389/falgy.2021.794430
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Spatiotemporal water quality variability in a highly loaded surface flow wastewater treatment wetland.

    Hitchcock, Daniel R / Bell, Natasha L / Strosnider, William / Smith, Matt C

    Journal of environmental quality

    2022  Volume 51, Issue 1, Page(s) 101–111

    Abstract: This study evaluates spatiotemporal relationships between water quality parameters (WQPs), nutrients, suspended solids, and biochemical oxygen demand (BOD) concentrations within an engineered wastewater treatment wetland system in the Georgia Piedmont, ... ...

    Abstract This study evaluates spatiotemporal relationships between water quality parameters (WQPs), nutrients, suspended solids, and biochemical oxygen demand (BOD) concentrations within an engineered wastewater treatment wetland system in the Georgia Piedmont, USA. We explored factors related to treatment efficiency within a heavily loaded 630-m
    MeSH term(s) Nitrogen/analysis ; Sewage ; Waste Disposal, Fluid ; Waste Water ; Water Purification ; Water Quality ; Wetlands
    Chemical Substances Sewage ; Waste Water ; Nitrogen (N762921K75)
    Language English
    Publishing date 2022-01-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 120525-0
    ISSN 1537-2537 ; 0047-2425
    ISSN (online) 1537-2537
    ISSN 0047-2425
    DOI 10.1002/jeq2.20309
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article: Investigating Palestinian in-service teachers' beliefs about the integration of information and communication technology (ICT) into teaching English.

    Qaddumi, Husam / Smith, Matt / Masd, Khaled / Bakeer, Aida / Abu-Ulbeh, Waheeb

    Education and information technologies

    2023  , Page(s) 1–21

    Abstract: The purpose of this study was to look into how Information and Communication Technology (ICT) is used in teaching English language from the point-of-view of English language teachers in Palestine. A quantitative approach was employed to collect data from ...

    Abstract The purpose of this study was to look into how Information and Communication Technology (ICT) is used in teaching English language from the point-of-view of English language teachers in Palestine. A quantitative approach was employed to collect data from 780 language school teachers from 260 schools who participated in a course project utilizing ICT in English as a Foreign Language teaching (TEFL). These participants responded to a questionnaire survey about the effects of the Covid-19 epidemic on language education and how they dealt with these. We statistically analysed the responses through four domains: the use of ICT in students' lives; the use of ICT in education generally; the use of ICT to support learning and teaching in EFL; and teachers' perceived skills for using ICT in education. Results indicated that English language teachers in Palestinian public schools believed that ICT has clear potential to support the learning of English, but that there remain barriers to its implementation. Teachers feel equipped to use ICT but would like to see a greater emphasis on training in order to maximise their teaching.
    Language English
    Publishing date 2023-03-15
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2001930-0
    ISSN 1573-7608 ; 1360-2357
    ISSN (online) 1573-7608
    ISSN 1360-2357
    DOI 10.1007/s10639-023-11689-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Demographic and genetic consequences of a steelhead supplementation program

    Smith, Christian T. / Headley, Racheal / Smith, Matt / Kennedy, Benjamen M. / Holmes, John / Nehmens, Melissa / Adams, Brice / Piteo, Matthew / Von Bargen, Jennifer

    Transactions of the American Fisheries Society. 2024 Jan., v. 153, no. 1 p.112-128

    2024  

    Abstract: OBJECTIVE: Supplementation of naturally spawning populations by the addition of hatchery‐spawned individuals is commonly conducted for recovery of threatened and endangered populations and to support harvest opportunities. Our objective was to evaluate ... ...

    Abstract OBJECTIVE: Supplementation of naturally spawning populations by the addition of hatchery‐spawned individuals is commonly conducted for recovery of threatened and endangered populations and to support harvest opportunities. Our objective was to evaluate whether the use of a juvenile captive broodstock and an integrated paradigm could increase returns of steelhead, the anadromous form of Rainbow Trout Oncorhynchus mykiss, while avoiding negative genetic impacts commonly associated with hatchery propagation. METHODS: We analyzed 291 genetic markers in adult steelhead returning to an integrated population in southwest Washington over the course of 15 years. Reproductive success (RS) of fish spawning in the natural environment was evaluated by origin (hatchery versus natural) and return year. Data were then pooled over years to maximize sample sizes for comparing RS estimates among groups (i.e., estimation of relative reproductive success [RRS]). RESULT: We observed a weak relationship between RS and origin (male p = 0.347; female p = 0.066), but a significant relationship between RS and return year (male p < 0.001, η² = 0.896; female p ⟨ 0.001, η² = 0.867) (i.e., hatchery‐ and natural‐origin fish did well or poorly together each year). Estimates of RRS for fish spawned in the hatchery ranged from 2.4 to 6.4, indicating that fish spawned in the hatchery produced more returning adult progeny than did fish allowed to spawn in the natural environment. Estimates of RRS were ⟨1.0 for hatchery‐origin fish spawning in the natural environment, but the difference was nonsignificant for males and marginally significant for females. Hatchery‐origin fish exhibited reduced genetic diversity as well as evidence of increased temporal population structure. CONCLUSION: We conclude that the program was successful in achieving an increase in adult returns but not in avoiding negative genetic effects on the population and that any lasting impacts of supplementation remain to be determined.
    Keywords Oncorhynchus mykiss ; adults ; anadromous fish ; breeding stock ; females ; genetic variation ; hatcheries ; juveniles ; males ; population structure ; progeny ; reproductive success
    Language English
    Dates of publication 2024-01
    Size p. 112-128.
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 416724-7
    ISSN 0002-8487
    ISSN 0002-8487
    DOI 10.1002/tafs.10446
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

To top