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  1. Article ; Online: Een vluchtig perspectief voor stimuleren van bodemweerbaarheid

    de Boer, W. / Garbeva, Paolina

    Gewasbescherming

    2021  Volume 52, Issue 6

    Keywords Life Science
    Language Dutch
    Publishing country nl
    Document type Article ; Online
    ZDB-ID 772077-4
    ISSN 0166-6495
    ISSN 0166-6495
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    In stock of ZB MED Bonn / Germany

    Z 3797: Show issues

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  2. Article ; Online: Estimating and monetizing the causal effect of severe interpersonal violence against children in sports on subjective well-being.

    Schoemaker, Jelle / Vertommen, Tine / Stevens, Vidar / de Boer, Willem

    Child abuse & neglect

    2024  Volume 151, Page(s) 106719

    Abstract: Background: Interpersonal Violence (IV) against children in sports is a prevalent problem and has a major impact on their well-being. However, the causal relationship and the costs for society remain unclear.: Objective: The aim of this study is to ... ...

    Abstract Background: Interpersonal Violence (IV) against children in sports is a prevalent problem and has a major impact on their well-being. However, the causal relationship and the costs for society remain unclear.
    Objective: The aim of this study is to estimate the causal effect of severe IV in sports on Subjective Well-Being (SWB) and to monetize the collective loss for society.
    Participants and setting: The study used survey data from 4003 respondents in the Netherlands and Flanders (Belgium). The questionnaire included current SWB as well as 41 items to assess experiences with psychological, physical and sexual IV in sports before the age of 18. Severity was quantified by experts and reported frequency.
    Methods: By using the number of sports that someone participated in during their youth as an instrumental variable to control for confounding, the study estimates the causal effect of severe IV on SWB. The Three-Stage Well-Being Valuation Approach was used to monetize the loss in SWB in terms of income compensation.
    Results: The results show that experiencing severe IV in sports results in significant lower SWB levels (b = -0.45, p < .01). The lower SWB is comparable to an annual loss of income of 9672 euro per person.
    Conclusions: We have found evidence for a causal effect of severe IV in childhood on the SWB later in life. The results highlight the long-term, extensive impact of experiencing severe IV in sports that exceeds direct physical and psychological health outcomes.
    MeSH term(s) Child ; Adolescent ; Humans ; Sports/psychology ; Sex Offenses/psychology ; Sexual Behavior ; Surveys and Questionnaires ; Violence
    Language English
    Publishing date 2024-03-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 799143-5
    ISSN 1873-7757 ; 0145-2134
    ISSN (online) 1873-7757
    ISSN 0145-2134
    DOI 10.1016/j.chiabu.2024.106719
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1437: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  3. Article ; Online: Reducing the microbiomes of beetroot and spinach seeds can increase infection by Pythium ultimum

    Diakaki, M. / de Boer, W. / Postma, J.

    Gewasbescherming

    2022  Volume 53, Issue 3

    Keywords Life Science
    Language English
    Publishing country nl
    Document type Article ; Online
    ZDB-ID 772077-4
    ISSN 0166-6495
    ISSN 0166-6495
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    In stock of ZB MED Bonn / Germany

    Z 3797: Show issues

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  4. Article ; Conference proceedings ; Online: Biologische bestrijding met Bodemmicroben

    de Boer, W.

    2017  

    Keywords Life Science
    Language Dutch
    Publishing country nl
    Document type Article ; Conference proceedings ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Chitin Determination in Residual Streams Derived From Insect Production by LC-ECD and LC-MS/MS Methods

    Nurfikari, Azkia / de Boer, Wietse

    Frontiers in Sustainable Food Systems

    2021  Volume 5

    Abstract: Chitin, a biopolymer present in fungi and arthropods, is a compound of interest for various applications, such as in the agricultural and medical fields. With the recently growing interest in the development of insect farming, the availability of chitin- ... ...

    Abstract Chitin, a biopolymer present in fungi and arthropods, is a compound of interest for various applications, such as in the agricultural and medical fields. With the recently growing interest in the development of insect farming, the availability of chitin-containing residual streams, particularly the molting skins (exuviae), is expected to increase in the near future. For application purposes, accurate quantification of chitin in these insect sources is essential. Previous studies on chitin extraction and quantification often overlooked the purity of the extracted chitin, making the outcomes inconsistent and prone to overestimation. The present study aims to determine chitin content in the exuviae of three insect species mass-reared worldwide: black soldier fly (BSF), mealworm, and house cricket. Chitin was chemically extracted using acid and alkali treatments to remove minerals and proteins. The purity of extracted chitin was evaluated by hydrolyzing the chitin into glucosamine, followed by quantitative determination of the latter using two liquid chromatography methods: electrochemical detection (ECD) and tandem mass spectrometry (MS/MS). Both methods proved accurate and precise, without the need for labor-intensive derivatization steps. Pearson's correlation and Bland-Altman plots showed that the glucosamine determination results obtained by the two methods were comparable, and there is no consistent bias of one approach vs. the other. The chitin content in extracted residues ranged between 7.9 and 18.5%, with the highest amount found in BSF puparium. In summary, the study demonstrated that (1) the residual streams of the insect farming industry have a great potential for utilization as an alternative chitin source, and (2) both LC-ECD and LC-MS/MS are reliable for the quantitative determination of glucosamine in insect chitin.
    Keywords LC-ECD ; LC-MS/MS ; chitin extraction ; exuviae ; glucosamine ; insect farming
    Subject code 540
    Language English
    Publishing country nl
    Document type Article ; Online
    ISSN 2571-581X
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Valuing the contribution of sport volunteering to subjective wellbeing: evidence from eight European countries.

    Kokolakakis, Themistocles / Schoemaker, Jelle / Lera-Lopez, Fernando / de Boer, Willem / Čingienė, Vilma / Papić, Alma / Ahlert, Gerd

    Frontiers in sports and active living

    2024  Volume 6, Page(s) 1308065

    Abstract: Introduction: Volunteering is a prominent and integral aspect of the activities undertaken by sports clubs in Europe. However, even with its growing importance, quantifying the monetary worth of this nonmarket activity, in terms of wellbeing, can ... ...

    Abstract Introduction: Volunteering is a prominent and integral aspect of the activities undertaken by sports clubs in Europe. However, even with its growing importance, quantifying the monetary worth of this nonmarket activity, in terms of wellbeing, can present certain difficulties. Traditional approaches to valuing volunteering (i.e., replacement and opportunity cost approaches) do not fully capture the value of volunteering to individuals, as they do not consider the intangible benefits that individuals may derive from their participation.
    Methods: This research provides added value to the monetisation of volunteering in sport by applying the wellbeing valuation approach (WVA) for the first time to a cross-sectional data in eight European countries. A double instrumental variable approach was developed to correct for unobservable variables that may influence the pairs: income and subjective wellbeing (SWB), and volunteering and SWB. This allows to estimate the causal impact of volunteering and income on SWB more accurately and assign a reasonable monetary value to this non-market activity.
    Results: The results, based on a sample size of 1,091, show an income compensation for a volunteer, devoting on average 8.7 hours during a four-week period of €16 to €50 per hour, equivalent to between € 1,700 and € 5,200 per year, depending on the nationality of the volunteer.
    Discussion: With these estimations insights into the value of volunteering in sports are provided, contributing to a better understanding of how this activity can be valued and supported. By recognising and accurately valuing the contributions of volunteers, sport organizations and policymakers can develop more effective strategies for promoting and supporting volunteering in sports.
    Language English
    Publishing date 2024-02-02
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2624-9367
    ISSN (online) 2624-9367
    DOI 10.3389/fspor.2024.1308065
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Upscaling of fungal-bacterial interactions: from the lab to the field.

    de Boer, Wietse

    Current opinion in microbiology

    2017  Volume 37, Page(s) 35–41

    Abstract: Fungal-bacterial interactions (FBI) are an integral component of microbial community networks in terrestrial ecosystems. During the last decade, the attention for FBI has increased tremendously. For a wide variety of FBI, information has become available ...

    Abstract Fungal-bacterial interactions (FBI) are an integral component of microbial community networks in terrestrial ecosystems. During the last decade, the attention for FBI has increased tremendously. For a wide variety of FBI, information has become available on the mechanisms and functional responses. Yet, most studies have focused on pairwise interactions under controlled conditions. The question to what extent such studies are relevant to assess the importance of FBI for functioning of natural microbial communities in real ecosystems remains largely unanswered. Here, the information obtained by studying a type of FBI, namely antagonistic interactions between bacteria and plant pathogenic fungi, is discussed for different levels of community complexity. Based on this, general recommendations are given to integrate pairwise and ecosystem FBI studies. This approach could lead to the development of novel strategies to steer terrestrial ecosystem functioning.
    Language English
    Publishing date 2017-06
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1418474-6
    ISSN 1879-0364 ; 1369-5274
    ISSN (online) 1879-0364
    ISSN 1369-5274
    DOI 10.1016/j.mib.2017.03.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 5514: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)
    Zs.MG 51: Show issues

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  8. Article ; Online: Soil biodiversity and nature-mimicry in agriculture; the power of metaphor?

    Pulleman, M.M. / de Boer, W. / Giller, K.E. / Kuijper, T.W.M.

    Outlook on Agriculture

    2022  Volume 51, Issue 1

    Abstract: Attention to soil biodiversity and its importance for sustainable food production has markedly increased in recent years. In particular, the loss of soil biodiversity as a consequence of intensive agriculture, land degradation and climate change has ... ...

    Abstract Attention to soil biodiversity and its importance for sustainable food production has markedly increased in recent years. In particular, the loss of soil biodiversity as a consequence of intensive agriculture, land degradation and climate change has raised concerns due to the expected negative impacts on ecosystem services, food security and human health. The result is a strong demand for ‘nature-based’ practices that stimulate soil biodiversity or beneficial soil organisms and enhance soil health. Here, we examine the origin of popular ideas on the role of soil biology in sustainable soil management, as well as their potential to address key global challenges related to agriculture. Three examples of such ideas are discussed: 1) a higher fungal:bacterial (F:B) biomass ratio favours soil carbon storage and nutrient conservation; (2) intensive agricultural practices lead to a decline in soil biodiversity with detrimental consequences for sustainable food production; (3) inoculation with arbuscular mycorrhizal fungi reduces agriculture's dependency on synthetic fertilizers. Our analysis demonstrates how ecological theories, especially E.P. Odum's ( 1969) hypotheses on ecological succession, have inspired the promotion of agricultural practices and commercial products that are based on the mimicry of (soil biology in) natural ecosystems. Yet our reading of the scientific literature shows that popular claims on the importance of high F:B ratios, soil biodiversity and the inoculation with beneficial microbes for soil health and sustainable agricultural production cannot be generalized and require careful consideration of limitations and possible trade-offs. We argue that dichotomies and pitfalls associated with the normative use of nature as a metaphor for sustainability can be counterproductive given the urgency to achieve real solutions that sustain food production and natural resources. Finally, implications for soil ecology research and sustainable soil management in agriculture are discussed.
    Keywords Arbuscular mycorrhizal fungi ; ecological intensification ; ecologistic fallacy ; fungal:bacterial biomass ratio ; inoculation ; nature-based solutions ; soil ecology ; soil health ; sustainable farming
    Subject code 630
    Language English
    Publishing country nl
    Document type Article ; Online
    ZDB-ID 417465-3
    ISSN 0030-7270
    ISSN 0030-7270
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    In stock of ZB MED Bonn / Germany

    Z 1238: Show issues

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  9. Article ; Online: Ecologie van bodemmicro-organismen

    de Boer, W.

    Gewasbescherming

    de basis voor een gezonde bodem

    2014  Volume 45, Issue 1

    Abstract: Dit is de titel van de inaugurele rede die op 14 februari 2013 heb gehouden in de aula van Wageningen University bij de aanvaarding van het ambt als buitengewoon hoogleraar Microbiële Bodemecologie. Onlangs is de gedrukte versie verschenen. In de rede ... ...

    Abstract Dit is de titel van de inaugurele rede die op 14 februari 2013 heb gehouden in de aula van Wageningen University bij de aanvaarding van het ambt als buitengewoon hoogleraar Microbiële Bodemecologie. Onlangs is de gedrukte versie verschenen. In de rede wordt ingegaan op het belang van interacties tussen bodemmicro-organismen voor het functioneren van het bodemecosysteem en met name op de natuurlijk regulerende werking die microbiële interacties kunnen hebben op ziekteverwekkers in de bodem.
    Keywords microbiology ; plant protection ; public speeches ; soil biology ; soil ecology ; soil suppressiveness ; terrestrial ecosystems ; bodembiologie ; bodemecologie ; bodemweerbaarheid ; gewasbescherming ; microbiologie ; openbare redes ; terrestrische ecosystemen
    Language Dutch
    Publishing country nl
    Document type Article ; Online
    ZDB-ID 772077-4
    ISSN 0166-6495
    ISSN 0166-6495
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    In stock of ZB MED Bonn / Germany

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  10. Article: Strategies to Maintain Natural Biocontrol of Soil-Borne Crop Diseases During Severe Drought and Rainfall Events.

    Meisner, Annelein / de Boer, Wietse

    Frontiers in microbiology

    2018  Volume 9, Page(s) 2279

    Abstract: In many parts of the world, agricultural ecosystems are increasingly exposed to severe drought, and rainfall events due to climate changes. This coincides with a higher vulnerability of crops to soil-borne diseases, which is mostly ascribed to decreased ... ...

    Abstract In many parts of the world, agricultural ecosystems are increasingly exposed to severe drought, and rainfall events due to climate changes. This coincides with a higher vulnerability of crops to soil-borne diseases, which is mostly ascribed to decreased resistance to pathogen attacks. However, loss of the natural capacity of soil microbes to suppress soil-borne plant pathogens may also contribute to increased disease outbreaks. In this perspectives paper, we will discuss the effect of extreme weather events on pathogen-antagonist interactions during drought and rainfall events and upon recovery. We will focus on diseases caused by root-infecting fungi and oomycetes. In addition, we will explore factors that affect restoration of the balance between pathogens and other soil microbes. Finally, we will indicate potential future avenues to improve the resistance and/or recovery of natural biocontrol during, and after water stresses. As such, our perspective paper will highlight a knowledge gap that needs to be bridged to adapt agricultural ecosystems to changing climate scenarios.
    Language English
    Publishing date 2018-11-02
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2018.02279
    Database MEDical Literature Analysis and Retrieval System OnLINE

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