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  1. Article: Insect pests affecting the production of mango in South Africa

    Grove, T / M. S. De Beer

    Acta horticulturae. 2017 Nov. 25, , no. 1183

    2017  

    Abstract: The mango, Mangifera indica (Anacardiaceae), is an important subtropical crop in South Africa. The most important production areas are in the Mpumalanga and Limpopo Provinces, and the most important cultivars are 'Tommy Atkins', 'Keitt' and 'Kent'. The ... ...

    Abstract The mango, Mangifera indica (Anacardiaceae), is an important subtropical crop in South Africa. The most important production areas are in the Mpumalanga and Limpopo Provinces, and the most important cultivars are 'Tommy Atkins', 'Keitt' and 'Kent'. The production of mango in South Africa is subjected to various insect pests. The important pests on mango are fruit flies (Diptera: Tephritidae), the mango seed weevil, Sternochetus mangiferae (Fabricius) (Coleoptera: Curculionidae); the mango scale, Aulacaspis tubercularis (Newstead) (Hemiptera: Diaspididae); the citrus thrips, Scirtothrips aurantii Faure (Thysanoptera: Thripidae); the mango gall fly, Procontarinia matteiana Kieffer and Cecconi (Diptera: Cecidomyiidae); the African bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) and the coconut bug, Pseudotheraptus wayi Brown (Hemiptera: Coreidae). Three Ceratitis species are known to attack mango, i.e., the Marula fruit fly, Ceratitis cosyra (Walker), the Natal fruit fly, Ceratitis rosa Karsch, and the Mediterranean fruit fly, Ceratitis capitata (Wiedemann). The Oriental fruit fly, Bactrocera dorsalis (Hendel), was detected in South Africa for the first time in 2010. Various other minor pests are also present. Producers in South Africa are encouraged to do regular pest monitoring and to follow an integrated pest management strategy.
    Keywords Aulacaspis ; Bactrocera dorsalis ; Cecidomyiidae ; Ceratitis capitata ; Ceratitis cosyra ; Ceratitis rosa ; coconuts ; Cryptorhynchus mangiferae ; cultivars ; fruit flies ; Helicoverpa armigera ; insect pests ; integrated pest management ; Mangifera indica ; mangoes ; pest monitoring ; Pseudotheraptus wayi ; Scirtothrips aurantii ; Sclerocarya birrea subsp. caffra ; South Africa
    Language English
    Dates of publication 2017-1125
    Size p. 297-304.
    Publishing place International Society for Horticultural Science.
    Document type Article
    Note Paper Presented at the XI International Mango Symposium held September 28, 2015 – October 2, 2015, Darwin, Northern Territory Australia
    ISSN 0567-7572
    DOI 10.17660/ActaHortic.2017.1183.43
    Database NAL-Catalogue (AGRICOLA)

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  2. Book ; Online: The World Is Waiting for You

    Grove, Tara

    Graduation Speeches to Live By from Activists, Writers, and Visionaries

    2015  

    Abstract: With contemporary graduation speeches that dissect the world as it is and imagine what it could be, The World Is Waiting for You brings forth eighteen courageous figures who have dared to transform the podium into a pulpit for championing peace, justice, ...

    Abstract With contemporary graduation speeches that dissect the world as it is and imagine what it could be, The World Is Waiting for You brings forth eighteen courageous figures who have dared to transform the podium into a pulpit for championing peace, justice, protest, and a better world.“The voices of conformity speak so loudly. Don't listen to them," acclaimed author and award-winning journalist Anna Quindlen cautioned graduates of Grinnell College. Jazz virtuoso and educator Wynton Marsalis advised new Connecticut College alums not to worry about being on time, but rather to be in time—because “t
    Language English
    Size Online-Ressource (225 p)
    Publisher New Press, The
    Publishing place New York
    Document type Book ; Online
    Note Description based upon print version of record
    ISBN 9781620970904 ; 1620970902
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  3. Book ; Thesis: Hochleistungszerspanung von Titan

    Grove, Thilo

    (Berichte aus dem IFW ; 2015,4)

    2015  

    Author's details Thilo Grove
    Series title Berichte aus dem IFW ; 2015,4
    Language German
    Size XI, 133 S., Ill., graph. Darst.
    Publisher PZH Verl
    Publishing place Garbsen
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Univ., Diss.--Hannover, 2015
    ISBN 9783959000291 ; 3959000294
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  4. Article ; Online: Temperatures and Timescales of Crystallization in the “Mush Zone” Beneath Fast‐Spreading Ocean Ridges

    VanTongeren, J. A. / Kelemen, P. B. / Grove, T. L.

    Journal of Geophysical Research: Solid Earth. 2022 Dec., v. 127, no. 12 p.e2022JB024812-

    2022  

    Abstract: Quantifying the timescales of magma solidification and eruption beneath mid‐ocean ridges is critical to understanding how melts are emplaced and crystallized, and how long these magmas and their crystals remain in a semi‐molten “mush‐like” state. Here, ... ...

    Abstract Quantifying the timescales of magma solidification and eruption beneath mid‐ocean ridges is critical to understanding how melts are emplaced and crystallized, and how long these magmas and their crystals remain in a semi‐molten “mush‐like” state. Here, we present a new method to quantify the crystallization and solidification temperatures of individual gabbros in the lower crust of the Wadi Tayin massif (Samail ophiolite). Cotectic crystallization temperatures of olivine + plagioclase + clinopyroxene are constrained by our clinopyroxene Mg# thermometer, and supported by clinopyroxene‐olivine Fe‐Mg equilibration temperatures. We find that lower crustal gabbros reach the cotectic at approximately 1,160 ± 16°C, and are fully solidified between 781 and 1011°C, depending on cooling rate. Our results show that lower crustal gabbros spend, on average, 7,500–11,500 years in a partially molten state with no systematic change in duration with depth in the crust. Samples with very fast cooling rates result in solidification only a few tens of meters off‐axis from their emplacement location and likely indicate solidification near the distal edge of the on‐axis melt lens or in off‐axis melt lenses. Incorporating a uniform 1 km wide emplacement region directly on‐axis, as inferred geophysically, and a half‐spreading rate of 55 mm/yr, our results suggest that the Mush Zone at fast‐spreading ridges remains partially molten for 0–3 km away from the ridge axis, but up to 4–7 km considering all possible sources of uncertainty. Both geophysical and geochemical estimates of the Mush Zone are inconsistent with conductive cooling of the lower oceanic crust.
    Keywords cooling ; crystallization ; geophysics ; olivine ; plagioclase ; research ; solidification ; thermometers ; uncertainty
    Language English
    Dates of publication 2022-12
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ISSN 2169-9313
    DOI 10.1029/2022JB024812
    Database NAL-Catalogue (AGRICOLA)

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  5. Article: Species composition and abundance of fruit flies (Díptera: Tephritidae) in subtropical fruit orchards in the Mbombela Local Municipality, South Africa

    Grové, T. / de Beer, M .S.

    Fruits

    2019  Volume 74, Issue 1, Page(s) 18

    Language French
    Document type Article
    ZDB-ID 240538-6
    ISSN 0016-2299 ; 0248-1294 ; 0248-1324
    Database Current Contents Nutrition, Environment, Agriculture

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    In stock of ZB MED Bonn / Germany

    Z 3028: Show issues

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  6. Article ; Online: Anxiety Mediates the Relationship between Psychotic-Like Experiences and Social Functioning in the General Population.

    Deng, Wisteria Y / Grove, Tyler / Deldin, Patricia

    Psychopathology

    2020  Volume 53, Issue 2, Page(s) 95–102

    Abstract: Introduction: Within the psychosis continuum that includes schizophrenia (SZ) at the severe end and the general population at the mild end, anxiety may negatively impact social functioning more than psychosis or psychotic-like experiences (PLE). This ... ...

    Abstract Introduction: Within the psychosis continuum that includes schizophrenia (SZ) at the severe end and the general population at the mild end, anxiety may negatively impact social functioning more than psychosis or psychotic-like experiences (PLE). This claim is supported by previous reports that show anxiety mediates the relationship between psychosis and social functioning in SZ, suggesting anxiety is critical to social functioning in SZ. Yet no studies have examined a similar relationship in the general population, and this is important because people with PLE are at a significantly higher risk for developing full-blown psychosis.
    Methods: Similar to those with SZ, we predicted heightened anxiety would mediate the relationship between PLE, as measured by The -Oxford-Liverpool Inventory of Feelings and Experiences, and social functioning, as measured by Social Adjustment Scale - Self-Report, in the general population.
    Results: Indeed, the current study showed that the relationship between PLE and social functioning was mediated by anxiety (z = 7.81, p < 0.001) within an unselected crowdsourcing sample representative of the general population (Amazon M-Turk; n = 197, mean age 32.38 years).
    Conclusion: Taken together with previous reports, the current findings suggest that anxiety is a functionally relevant dimension across the psychosis continuum and improving anxiety may improve social functioning across this continuum.
    MeSH term(s) Adult ; Anxiety/psychology ; Female ; Humans ; Male ; Psychotic Disorders/epidemiology ; Psychotic Disorders/psychology ; Social Adjustment
    Language English
    Publishing date 2020-07-03
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 605604-0
    ISSN 1423-033X ; 0254-4962
    ISSN (online) 1423-033X
    ISSN 0254-4962
    DOI 10.1159/000507869
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 561: 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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  7. Article: Fruit flies associated with the pepper-bark tree (Warburgia salutaris (G.Bertol.) Chiov.) in Mpumalanga province, South Africa

    Grové, T. / Hannweg, K. / de Jager, K. / Hofmeyr, M.

    Fruits

    2020  Volume 75, Issue 6, Page(s) 267

    Language French
    Document type Article
    ZDB-ID 240538-6
    ISSN 0016-2299 ; 0248-1294
    Database Current Contents Nutrition, Environment, Agriculture

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    In stock of ZB MED Bonn / Germany

    Z 3028: Show issues

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  8. Article ; Online: Improving tumble turn performance in swimming-the impact of wall contact time and tuck index.

    David, Sina / Grove, Tamara / Duijven, Myrna V / Koster, Paul / Beek, Peter J

    Frontiers in sports and active living

    2022  Volume 4, Page(s) 936695

    Abstract: Race time can be shortened by improving turn performance in competitive swimming, but this requires insight into the optimal turn technique. The aim of the present study was to examine the effect of Wall Contact Time (WCT) and Tuck Index on tumble turn ... ...

    Abstract Race time can be shortened by improving turn performance in competitive swimming, but this requires insight into the optimal turn technique. The aim of the present study was to examine the effect of Wall Contact Time (WCT) and Tuck Index on tumble turn performance and their interrelations by experimentally manipulating both variables, which has not been done in previous research. Eighteen Dutch national level swimmers (FINA points 552 ± 122) performed tumble turns with three different WCTs (shorter, preferred, longer) and three different Tuck Indices (higher, preferred, lower), which were recorded by four underwater cameras and a wall-mounted force plate. Linear kinematic and kinetic variables, including the approach velocity (V
    Language English
    Publishing date 2022-07-22
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2624-9367
    ISSN (online) 2624-9367
    DOI 10.3389/fspor.2022.936695
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Book ; Online: A Grizzly in the Mail and Other Adventures in American History

    Grove, Tim

    2014  

    Abstract: For more than twenty years, Tim Grove has worked at the most popular history museums in the United States, helping millions of people get acquainted with the past. This book translates that experience into an insider's tour of some of the most ... ...

    Abstract For more than twenty years, Tim Grove has worked at the most popular history museums in the United States, helping millions of people get acquainted with the past. This book translates that experience into an insider's tour of some of the most interesting moments in American history. Grove's stories are populated with well-known historical figures such as John Brown, Charles Lindbergh, Meriwether Lewis, William Clark, and Sacagawea-as well as the not-so-famous. Have you heard of Mary Pickersgill, seamstress of the Star-Spangled Banner flag? Grove also has something to say about a few of our ch
    Language English
    Size Online-Ressource (363 p)
    Publisher UNP - Nebraska Paperback
    Publishing place Lincoln
    Document type Book ; Online
    Note Description based upon print version of record
    ISBN 9780803249721 ; 0803249721
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  10. Article: Fruit flies (Diptera: Tephritidae) and Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae) associated with fruit of the family Myrtaceae Juss. In South Africa

    Grové, Tertia / Karen de Jager / Maria L. Theledi

    Crop protection. 2019 Feb., v. 116

    2019  

    Abstract: Fruit from 12 plant species of the family Myrtaceae Juss. were sampled from 2010 to 2017 in the Mpumalanga and Limpopo provinces of South Africa to obtain information on the host utilization of the economically important fruit fly species (Diptera: ... ...

    Abstract Fruit from 12 plant species of the family Myrtaceae Juss. were sampled from 2010 to 2017 in the Mpumalanga and Limpopo provinces of South Africa to obtain information on the host utilization of the economically important fruit fly species (Diptera: Tephritidae) and the false codling moth, Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae). Bactrocera dorsalis (Hendel) was reared from five plant species, and significantly more B. dorsalis/kg fruit were reared from Syzygium samarangense (Blume) Merr. & L.M.Perry (P < 0.0001). Four plant species were not previously recorded as hosts for B. dorsalis in South Africa. Ceratitis capitata (Wiedemann) was reared from six plant species and significantly more were reared from Eugenia uniflora L. (P < 0.0001). Ceratitis cosyra (Walker) was reared from five plant species and only a few samples were positive with relatively low infestation indices. Ceratitis rosa sensu lato Karsch was reared from nine Myrtaceae fruit types. One hundred percent of Acca sellowiana (O.Berg) Burret, Psidium cattleianum Afzel. ex Sabine, and S. samarangense samples were positive for Ceratitis rosa sensu lato Karsch. The mean infestation index for C. rosa s.l. differed significantly between the fruit types, and significantly more were reared from P. cattleianum (P < 0.0001). From 2016, distinction was made between males of C. rosa sensu stricto and Ceratitis quilicii De Meyer, Mwatawala and Virgilio. Males from both species were reared from A. sellowiana, Psidium guajava L. and Syzygium jambos (L.) Alston while only C. rosa s.s. was reared from P. cattleianum, Psidium friedrichsthalianum (O.Berg) Nied. and Syzygium cordatum Hochst. ex Krauss. No fruit flies were reared from Plinia cauliflora (Mart.) Kausel and Syzygium paniculatum Gaertn. Thaumatotibia leucotreta was reared from 11 Myrtaceae fruit types. Acca sellowiana, P. cauliflora, P. cattleianum, P. friedrichsthalianum, S. paniculatum and S. samarangense were not previously recorded as host plants for T. leucotreta. Fruit flies and T. leucotreta were reared from fruit sampled from the tree and from the ground highlighting the importance of sanitation as a method to suppress pest population levels. The presence of economically-important fruit flies and T. leucotreta in invasive plant species highlights the importance of controlling these plants as they can serve as a reservoir when cultivated fruit are not present. Myrtaceae plants commonly found in gardens were also identified as hosts and these plants could serve as a breeding place for fruit flies and T. leucotreta. These pests could move from home gardens to orchards when fruit start to mature.
    Keywords Acca sellowiana ; Bactrocera dorsalis ; breeding sites ; Ceratitis capitata ; Ceratitis cosyra ; Ceratitis rosa ; Eugenia uniflora ; fruit flies ; fruits ; home gardens ; host plants ; invasive species ; males ; orchards ; Plinia cauliflora ; Psidium cattleyanum ; Psidium friedrichsthalianum ; Psidium guajava ; rearing ; sanitation ; Syzygium cordatum ; Syzygium jambos ; Syzygium paniculatum ; Syzygium samarangense ; Thaumatotibia leucotreta ; trees ; South Africa
    Language English
    Dates of publication 2019-02
    Size p. 24-32.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 786839-x
    ISSN 1873-6904 ; 0261-2194
    ISSN (online) 1873-6904
    ISSN 0261-2194
    DOI 10.1016/j.cropro.2018.10.008
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 3919: Show issues

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