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  1. Article: Does pre-COVID impulsive behaviour predict adherence to hygiene and social distancing measures in youths following the COVID-19 pandemic onset? Evidence from a South African longitudinal study

    Haag, Katharina / Du Toit, Stefani / Mikus, Nace / Skeen, Sarah / Roberts, Kathryn Steventon / Marlow, Marguerite / Notholi, Vuyolwethu / Sambudla, Akhona / Chideya, Yeukai / Sherr, Lorraine / Tomlinson, Mark

    BMC Public Health

    2023  Volume 23, Issue 1, Page(s) No

    Abstract: Background: Engagement in protective behaviours relating to the COVID-19 pandemic has been proposed to be key to infection control. This is particularly the case for youths as key drivers of infections. A range of factors influencing adherence have been ... ...

    Title translation Sagt impulsives Verhalten vor COVID die Einhaltung von Hygiene- und sozialen Distanzierungsmaßnahmen bei Jugendlichen nach Ausbruch der COVID-19-Pandemie voraus? Evidenz aus einer südafrikanischen Längsschnittstudie
    Abstract Background: Engagement in protective behaviours relating to the COVID-19 pandemic has been proposed to be key to infection control. This is particularly the case for youths as key drivers of infections. A range of factors influencing adherence have been identified, including impulsivity and risk taking. We assessed the association between pre-COVID impulsivity levels and engagement in preventative measures during the COVID-19 pandemic in a longitudinal South African sample, in order to inform future pandemic planning. Methods: Data were collected from N = 214 youths (mean age at baseline: M = 17.81 (SD = .71), 55.6% female) living in a South African peri-urban settlement characterised by high poverty and deprivation. Baseline assessments were taken in 2018/19 and the COVID follow-up was conducted in June-October 2020 via remote data collection. Impulsivity was assessed using the Balloon Analogue Task (BART), while hygiene and social distancing behaviours were captured through self-report. Stepwise hierarchical regression analyses were performed to estimate effects of impulsivity on measure adherence. Results: Self-rated engagement in hygiene behaviours was high (67.1-86.1% "most of the time", except for "coughing/sneezing into one's elbow" at 33.3%), while engagement in social distancing behaviours varied (22.4-57.8% "most of the time"). Higher impulsivity predicted lower levels of hygiene (beta = .14, p = .041) but not social distancing behaviours (beta = -.02, p = .82). This association was retained when controlling for a range of demographic and COVID-related factors (beta = .14, p = .047) and was slightly reduced when including the effects of a life-skills interventions on hygiene behaviour (beta = -.13, p = .073). Conclusions: Our data indicate that impulsivity may predict adolescent engagement in hygiene behaviours post COVID-19 pandemic onset in a high risk, sub-Saharan African setting, albeit with a small effect size. For future pandemics, it is important to understand predictors of engagement, particularly in the context of adversity, where adherence may be challenging. Limitations include a small sample size and potential measure shortcomings.
    Keywords At Risk Populations ; COVID-19 ; Hygiene ; Impulsiveness ; Impulsivität ; Körperliche Distanzierung ; Physical Distancing ; Preventive Health Behavior ; Präventives Gesundheitsverhalten ; Risikogruppen
    Language English
    Document type Article
    DOI 10.1186/s12889-023-15310-w
    Database PSYNDEX

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  2. Article: Research Progress of Metabolomics in Forensic Pathology.

    Du, T S / Mengxi, M M / Ye, X / Tu, C Y / Jin, K D / Chen, S W / Liu, N G / Xie, J H / Shen, Y W

    Fa yi xue za zhi

    2020  Volume 36, Issue 3, Page(s) 347–353

    Abstract: Abstract: Metabolomics is an interdisciplinary subject that rose in the post-genomic era, which focuses on quantitative study of the response of living organisms to outside stimulation and pathophysiological changes, as well as multiple dynamic response ...

    Abstract Abstract: Metabolomics is an interdisciplinary subject that rose in the post-genomic era, which focuses on quantitative study of the response of living organisms to outside stimulation and pathophysiological changes, as well as multiple dynamic response of the level of in vivo metabolites caused by genetic mutation. It is extensively used in basic research of system biology, materia medica, clinical medicine, etc. In the forensic field, metabolomics mainly focuses on forensic toxicology, but with the generalization of certain techniques, it's foreseeable that metabolomics has a broad research prospect in forensic pathology. This article summarizes the major analysis techniques and methods of metabolomics, describes the research status of metabolomic techniques in the field of forensic pathology application research, including postmortem interval and death cause. Moreover, this article summarizes and discusses the potential applicable areas, in order to provide reference for relative research and application.
    MeSH term(s) Autopsy ; Forensic Pathology/trends ; Forensic Toxicology ; Humans ; Metabolomics ; Postmortem Changes
    Language Chinese
    Publishing date 2020-05-14
    Publishing country China
    Document type Journal Article ; Review
    ISSN 1004-5619
    ISSN 1004-5619
    DOI 10.12116/j.issn.1004-5619.2020.03.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Psychosocial interventions targeting mental health in pregnant adolescents and adolescent parents

    Laurenzi, Christina A. / Gordon, Sarah / Abrahams, Nina / du Toit, Stefani / Bradshaw, Melissa / Brand, Amanda / Melendez-Torres, G. J. / Tomlinson, Mark / Ross, David A. / Servili, Chiara / Carvajal-Aguirre, Liliana / Lai, Joanna / Dua, Tarun / Fleischmann, Alexandra / Skeen, Sarah

    Reproductive Health

    A systematic review

    2020  

    Abstract: Background: Pregnancy and parenthood are known to be high-risk times for mental health. However, less is known about the mental health of pregnant adolescents or adolescent parents. Despite the substantial literature on the risks associated with ... ...

    Title translation Psychosoziale Interventionen zur psychischen Gesundheit von schwangeren Jugendlichen und jugendlichen Eltern: Eine systematische Literaturübersicht
    Abstract Background: Pregnancy and parenthood are known to be high-risk times for mental health. However, less is known about the mental health of pregnant adolescents or adolescent parents. Despite the substantial literature on the risks associated with adolescent pregnancy, there is limited evidence on best practices for preventing poor mental health in this vulnerable group. This systematic review therefore aimed to identify whether psychosocial interventions can effectively promote positive mental health and prevent mental health conditions in pregnant and parenting adolescents. Methods: We used the standardized systematic review methodology based on the process outlined in the World Health Organization's Handbook for Guidelines Development. This review focused on randomized controlled trials of preventive psychosocial interventions to promote the mental health of pregnant and parenting adolescents, as compared to treatment as usual. We searched PubMed/Medline, PsycINFO, ERIC, EMBASE and ASSIA databases, as well as reference lists of relevant articles, grey literature, and consultation with experts in the field. GRADE was used to assess the quality of evidence. Results: We included 17 eligible studies (n = 3245 participants). Interventions had small to moderate, beneficial effects on positive mental health (SMD = 0.35, very low quality evidence), and moderate beneficial effects on school attendance (SMD = 0.64, high quality evidence). There was limited evidence for the effectiveness of psychosocial interventions on mental health disorders including depression and anxiety, substance use, risky sexual and reproductive health behaviors, adherence to antenatal and postnatal care, and parenting skills. There were no available data for outcomes on self-harm and suicide; aggressive, disruptive, and oppositional behaviors; or exposure to intimate partner violence. Only two studies included adolescent fathers. No studies were based in low- or middle-income countries. Conclusion: Despite the encouraging findings in terms of effects on positive mental health and school attendance outcomes, there is a critical evidence gap related to the effectiveness of psychosocial interventions for improving mental health, preventing disorders, self-harm, and other risk behaviors among pregnant and parenting adolescents. There is an urgent need to adapt and design new psychosocial interventions that can be pilot-tested and scaled with pregnant adolescents and adolescent parents and their extended networks, particularly in low-income settings.
    Keywords Adolescent Fathers ; Adolescent Mothers ; Adolescent Pregnancy ; Intervention ; Jugendliche Mütter ; Jugendliche Väter ; Mental Health ; Prevention ; Prävention ; Psychische Gesundheit ; School Attendance ; Schulbesuch ; Schwangerschaft im Jugendalter
    Language English
    Document type Article
    ZDB-ID 2149029-6
    ISSN 1742-4755
    ISSN 1742-4755
    DOI 10.1186/s12978-020-00913-y
    Database PSYNDEX

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  4. Article: Estimation of seasonal crop water consumption in a vineyard using Bowen ratio-energy balance method

    Zhang, B.Z / Kang, S.Z / Zhang, L / Du, T.S / Li, S.E / Yang, X.Y

    Hydrological processes. 2007 Dec. 15, v. 21, no. 26

    2007  

    Abstract: Information about seasonal crop water consumption is useful to develop the appropriate irrigation scheme. Measurements of energy balance components using the Bowen ratio method were made for a complete growing season at a vineyard in the arid region of ... ...

    Abstract Information about seasonal crop water consumption is useful to develop the appropriate irrigation scheme. Measurements of energy balance components using the Bowen ratio method were made for a complete growing season at a vineyard in the arid region of northwest China. Vine in the experiment was furrow-irrigated using a trellis system. The measured evapotranspiration was compared with estimates using the soil water balance method. It is shown that the Bowen ratio method provided accurate estimates of evapotranspiration from the vineyard and this requires that the Bowen ratio system is appropriately installed. The energy balance components showed typical diurnal pattern with peaks that occurred around the midday, except for the ground heat flux which delayed its peak by 2-3 h. The sensible heat flux was greater than the latent heat flux and followed the net radiation closely. The ratio of the latent heat flux to net radiation was low in the early growing season and increased over time. Under the limited irrigation experienced in the vineyard, the latent heat flux was controlled by available soil moisture and the total evapotranspiration in the growing season was 253 mm. The seasonal progression of the crop coefficient is similar to that reported in the literature, with the maximum occurring during the month of September. The crop coefficient can be estimated as a non-linear function of day of year (DOY) and used to estimate evapotranspiration from vineyards in the region. Copyright © 2007 John Wiley & Sons, Ltd.
    Keywords arid zones ; crop coefficient ; energy balance ; evapotranspiration ; growing season ; heat transfer ; irrigation management ; soil water ; soil water balance ; vineyards ; water use
    Language English
    Dates of publication 2007-1215
    Size p. 3635-3641.
    Publishing place John Wiley & Sons, Ltd.
    Document type Article
    ZDB-ID 1479953-4
    ISSN 1099-1085 ; 0885-6087
    ISSN (online) 1099-1085
    ISSN 0885-6087
    DOI 10.1002/hyp.6568
    Database NAL-Catalogue (AGRICOLA)

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  5. Article: Crop coefficient and ratio of transpiration to evapotranspiration of winter wheat and maize in a semi-humid region

    Kang, S.Z / Gu, B.J / Du, T.S / Zhang, J.H

    Agricultural water management. 2003 Apr. 2, v. 59, issue 3

    2003  

    Keywords Triticum aestivum ; winter wheat ; Zea mays ; corn ; crop production ; irrigated farming ; irrigation management ; water allocation ; developmental stages ; stomata ; transpiration ; evapotranspiration ; measurement ; soil water content ; seasonal variation ; humid zones ; leaf area index ; sowing date ; mathematical models ; equations ; China
    Language English
    Dates of publication 2003-0402
    Size p. 239-254.
    Document type Article
    ZDB-ID 751144-9
    ISSN 1873-2283 ; 0378-3774
    ISSN (online) 1873-2283
    ISSN 0378-3774
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: Water use efficiency and fruit quality of table grape under alternate partial root-zone drip irrigation

    Du, T. S. / Kang, S. Z. / Zhang, J. H. / Li, F. S. / Yan, B. Y.

    Agricultural Water Management

    2008  Volume 95, Issue 6, Page(s) 659–668

    Abstract: A field experiment was conducted over a 2-year period to investigate the effects of alternate partial root-zone drip irrigation on fruit yield, fruit quality and water use efficiency of table grapes (*Vitis vinifera* L. cv Rizamat) in the arid Shiyang ... ...

    Institution China Agricultural Univ., Center for Agricultural Water Research in China, Beijing 100083, China
    Abstract A field experiment was conducted over a 2-year period to investigate the effects of alternate partial root-zone drip irrigation on fruit yield, fruit quality and water use efficiency of table grapes (*Vitis vinifera* L. cv Rizamat) in the arid Shiyang River Basin region (164 mm precipitation) of northwest China. Mean daily evapotranspiration for June was 5.2 mm. Three irrigation treatments were included: CDI (conventional drip irrigation, both sides of the root-zone irrigated; 119 to 134 mm per season), ADI (alternate drip irrigation, both sides of the root-zone irrigated alternatively with half the water; 59-67 mm per season) and FDI (fixed drip irrigation, only one side of the root system irrigated with half the water; 59-67 mm per season). Compared to CDI, ADI maintained the same photosynthetic rate, but had a lower transpiration rate, thus increased leaf water use efficiency (WUE). Diurnal variation of leaf water potential was quite pronounced, but showed no treatment differences between 0700h and 1400h in both years. CDI vines had higher midday leaf water potentials than ADI and FDI when measured several days after irrigation. ADI also produced similar yield to CDI (and higher than FDI), improved WUEET by 26.7 to 46.4 %, increased the percentage of marketable fruit by 3.88 to 5.78 %, increased ascorbic acid concentration in the fruit by 15.3 to 42.2 %, and increased the ratio of total soluble solids concentration/titratable acidity in both years as compared to CDI. Most yield components such as berry weight, cluster weight, and berries per cluster had similar values across treatments and in some cases results were not consistent over the two years of the study. Overall, it is a safe conclusion that ADI saved irrigation water, and improved water use efficiency and fruit quality without detrimental effects on yield. [21526], (A.G. Reynolds, St. Catharines)
    Keywords IRRIGATION ; WATER ; DEFICIENCY ; TABLE GRAPE ; YIELD ; PHOTOSYNTHESIS
    Language English
    Document type Article
    ZDB-ID 751144-9
    ISSN 1873-2283 ; 0378-3774
    ISSN (online) 1873-2283
    ISSN 0378-3774
    Database Viticulture and Oenology Abstracts

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  7. Article ; Audio / Video: Effect of water deficit in different growth stages on stem sap flux of greenhouse grown pear-jujube tree

    Ma, F.S / Kang, S.Z / Li, F.S / Zhang, J.H / Du, T.S / Hu, X.T / Wang, M.X

    Agricultural water management. 2007 June 16, v. 90, issue 3

    2007  

    Keywords tree growth ; plant-water relations ; greenhouse production ; sap flow ; sap ; Ziziphus ; developmental stages ; fruiting ; flowering ; ripening ; soil water content ; transpiration ; stomatal conductance ; water use
    Language English
    Dates of publication 2007-0616
    Size p. 190-196.
    Document type Article ; Audio / Video
    ZDB-ID 751144-9
    ISSN 1873-2283 ; 0378-3774
    ISSN (online) 1873-2283
    ISSN 0378-3774
    DOI 10.1016/j.agwat.2006.12.009
    Database NAL-Catalogue (AGRICOLA)

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  8. Article: An evapotranspiration model for sparsely vegetated canopies under partial root-zone irrigation

    Zhang, B. Z. / Kang, S. Z. / Zhang, L. / Tong, L. / Du, T. S. / Li, F. S. / Zhang, J. H.

    Agricultural and Forest Meteorology

    2009  Volume 149, Issue 11, Page(s) 2007–2011

    Abstract: Bowen ratio-energy balance; evapotranspiration model; partial root-zone irrigation; Shuttleworth-Wallace model; vineyard. [23979] ...

    Institution Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, China
    Abstract Bowen ratio-energy balance; evapotranspiration model; partial root-zone irrigation; Shuttleworth-Wallace model; vineyard. [23979]
    Language English
    Document type Article
    ZDB-ID 409905-9
    ISSN 0168-1923
    ISSN 0168-1923
    DOI 10.1016/j.agrformet.2009.07.007
    Database Viticulture and Oenology Abstracts

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  9. Article: Estimation of seasonal crop water consumption in a vineyard using Bowen ratio-energy balance method

    Zhang, B. Z. / Kang, S. Z. / Zhang, L. / Du, T. S. / Li, S. E. / Yang, X. Y.

    Hydrological Processes

    2007  Volume 21, Issue 26, Page(s) 3635–3641

    Abstract: Abstract online at publishers website) ...

    Institution China Agricultural Univ., Center for Agricultural Water Research, Beijing 100083, P.R. of China
    Abstract (Abstract online at publishers website)
    Keywords WATER ; TRANSPIRATION ; MODEL ; IRRIGATION
    Language English
    Document type Article
    ZDB-ID 1479953-4
    ISSN 1099-1085 ; 0885-6087
    ISSN (online) 1099-1085
    ISSN 0885-6087
    DOI 10.1002/hyp.6568
    Database Viticulture and Oenology Abstracts

    Kategorien

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