Browsing Natural and Agricultural Sciences by Title

Browsing Natural and Agricultural Sciences by Title

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  • Boundary switch on/off control approach to simultaneous identification of diffusion coefficient and initial state for one-dimensional heat equation 
    Zhao, Zhi-Xue; Banda, M.K. (Mapundi); Guo, Bao-Zhu (American Institute of Mathematical Sciences, 2020-07)
    In this paper, we consider simultaneous reconstruction of diffusion coefficient and initial state for a one-dimensional heat equation through boundary control and measurement. The boundary measurement is proposed to make ...
  • Bounds for extreme zeros of some classical orthogonal polynomials 
    Driver, Kathy (Cathryn Helena Stanford); Jordaan, Kerstin Heidrun (Elsevier`, 2012-09)
    We use mixed three term recurrence relations typically satis ed by classical orthogonal polynomials from sequences corresponding to di erent parameters to derive upper (lower) bounds for the smallest (largest) zeros ...
  • Bounds for zeros of Meixner and Kravchuk polynomials 
    Jooste, Alta; Jordaan, Kerstin Heidrun (Cambridge University Press, 2014-04)
    The zeros of certain different sequences of orthogonal polynomials interlace in a well-defined way. The study of this phenomenon and the conditions under which it holds lead to a set of points that can be applied as bounds ...
  • Bovine immune factors underlying tick resistance : integration and future directions 
    Robbertse, Luise; Richards, Sabine A.; Maritz-Olivier, Christine (Frontiers Media, 2017-12-19)
    The mechanisms underlying tick resistance within and between cattle breeds have been studied for decades. Several previous papers on bovine immune parameters contributing to tick resistance discussed findings across DNA, ...
  • Brachiopod decline preceded the Early Toarcian mass extinction in the Northern Caucasus (northern Neo-Tethys Ocean) : a palaeogeographical context 
    Ruban, Dmitry Aleksandrovitch (Muséum d'histoire naturelle de la Ville de Genève, 2009-06)
    Brachiopods were affected strongly by the Early Toarcian mass extinction within the Northern Caucasus, which at that time was a large region on the northern margin of the Neo-Tethys Ocean. However, their decline preceded ...
  • Bradyrhizobium altum sp. nov., Bradyrhizobium oropedii sp. nov. and Bradyrhizobium acaciae sp. nov. from South Africa show locally restricted and pantropical nodA phylogeographic patterns 
    Avontuur, Juanita R.; Palmer, Marike; Beukes, Chrizelle Winsie; Chan, Wai Yin; Tasiya, Taponeswa; Van Zyl, Elritha; Coetzee, Martin Petrus Albertus; Stepkowski, Tomasz; Venter, S.N. (Stephanus Nicolaas); Steenkamp, Emma Theodora (Elsevier, 2022-02)
    Please read abstract in the article.
  • Bradyrhizobium diazoefficiens USDA 110 displays plasticity in the attachment phenotype when grown in different soybean root exudate compounds 
    Sandhu, Armaan Kaur; Brown, McKenzie Rae; Subramanian, Senthil; Brozel, Volker S. (Frontiers Media, 2023-05-18)
    INTRODUCTION : Bradyrhizobium diazoe ciens, a symbiotic nitrogen fixer for soybean, forms nodules after developing a symbiotic association with the root. For this association, bacteria need to move toward and attach to the ...
  • Bradyrhizobium xenonodulans sp. nov. isolated from nodules of Australian Acacia species invasive to South Africa 
    Claassens, Ricu; Venter, S.N. (Stephanus Nicolaas); Beukes, Chrizelle W.; Stepkowski, Tomasz; Chan, Wai Yin; Steenkamp, Emma Theodora (Elsevier, 2023-09)
    Please read abstract in the article.
  • The brains of six African mole-rat species show divergent responses to hypoxia 
    Logan, Samantha M.; Szereszewski, Kama E.; Bennett, Nigel Charles; Hart, Daniel William; Van Jaarsveld, Barry; Pamenter, Matthew E.; Storey, Kenneth B. (Company of Biologists, 2020-05)
    Mole-rats are champions of self-preservation, with increased longevity compared with other rodents their size, strong antioxidant capabilities and specialized defenses against endogenous oxidative stress. However, how ...
  • BRCA1 and BRCA2 pathogenic sequence variants in women of African origin or ancestry 
    Friebel, Tara M.; Andrulis, Irene L.; Balmana, Judith; Blanco, Amie M.; Couch, Fergus J.; Daly, Mary B.; Domchek, Susan M.; Easton, Douglas F.; Foulkes, William D.; Ganz, Patricia A.; Garber, Judy; Glendon, Gord; Greene, Mark H.; Hulick, Peter J.; Isaacs, Claudine; Jankowitz, Rachel C.; Karlan, Beth Y.; Kirk, Judy; Kwong, Ava; Lee, Annette; Lesueur, Fabienne; Lu, Karen H.; Nathanson, Katherine L.; Neuhausen, Susan L.; Offit, Kenneth; Palmero, Edenir I.; Sharma, Priyanka; Tischkowitz, Marc; Toland, Amanda Ewart; Tung, Nadine; Jansen van Rensburg, Elizabeth; Vega, Ana; Weitzel, Jeffrey N.; GEMO Study Collaborators; Hoskins, Kent F.; Maga, Tara; Parsons, Michael T.; McGuffog, Lesley; Antoniou, Antonis C.; Chenevix-Trench, Georgia; Huo, Dezheng; Olopade, Olufunmilayo I. (Wiley, 2019-10)
    BRCA1 and BRCA2 (BRCA1/2) pathogenic sequence variants (PSVs) confer elevated risks of multiple cancers. However, most BRCA1/2 PSVs reports focus on European ancestry individuals. Knowledge of the PSV distribution in African ...
  • BRCA1 R1699Q variant displaying ambiguous functional abrogation confers intermediate breast and ovarian cancer risk 
    Spurdle, Amanda B.; Whiley, Phillip J.; Thompson, Bryony; Feng, Bingjian; Healey, Sue; Brown, Melissa A.; Pettigrew, Christopher; Van Asperen, Christi J.; Ausems, Margreet G.E.M.; Kattentidt-Mouravieva, Anna A.; Van den Ouweland, Ans M.W.; Lindblom, Annika; Pigg, Maritta H.; Schmutzler, Rita K.; Engel, Christoph; Meindl, Alfons; Caputo, Sandrine; Sinilnikova, Olga M.; Lidereau, Rosette; Couch, Fergus J.; Guidugli, Lucia; Hansen, Thomas V.O.; Thomassen, Mads; Eccles, Diana M.; Tucker, Kathy; Benitez, Javier; Domchek, Susan M.; Toland, Amanda Ewart; Jansen van Rensburg, Elizabeth; Wappenschmidt, Barbara; Borg, Ake; Vreeswijk, Maaike P.G.; Goldgar, David E. (BMJ Publishing Group Ltd, 2012-08)
    BACKGROUND: Clinical classification of rare sequence changes identified in the breast cancer susceptibility genes BRCA1 and BRCA2 is essential for appropriate genetic counseling of individuals carrying these variants. We ...
  • The BRCA2 c.68-7T > a variant is not pathogenic : a model for clinical calibration of spliceogenicity 
    Colombo, Mara; Lòpez-Perolio, Irene; Meeks, Huong D.; Caleca, Laura; Parsons, Michael T.; Li, Hongyan; De Vecchi, Giovanna; Tudini, Emma; Foglia, Claudia; Mondini, Patrizia; Manoukian, Siranoush; Behar, Raquel; Gómez Garci, Encarna B.; Meindl, Alfons; Montagna, Marco; Niederacher, Dieter; Schmidt, Ane Y.; Varesco, Liliana; Wappenschmidt, Barbara; Bolla, Manjeet K.; Dennis, Joe; Michailido, Kyriaki; Wang, Qin; Aittomäki, Kristiina; Andrulis, Irene L.; Anton-Culver, Hoda; Arndt, Volker; Beckmnn, Matthias W.; Beeghly-Fadel, Alicia; Benitez, Javier; Boeckx, Bram; Bogdanova, Natalia V.; Bojesen, Stig E.; Bonanni, Bernardo; Chang-Claude, Jenny; Conroy, Don M.; Couch, Fergus J.; Cox, Angela; Cross, Simon S.; Czene, Kamila; Devilee, Peter; Dörk, Thilo; Eriksson, Mikael; Fasching, Peter A.; Figueroa, Jonine; Fletcher, Olivia; Flyger, Henrik; Gabrielson, Marike; García-Closas, Montserrat; Giles, Graham G.; González-Neira, Anna; Guénel, Pascal; Haiman, Christopher A.; Hall, Per; Hamann, Ute; Hartman, Mikael; Hauke, Jan; Hollestelle, Antoinette; Hopper, John L.; Jakubowska, Anna; Jung, Audrey; Kosma, Veli-Matti; Lambrechts, Diether; Le Marchand, Loid; Lindblom, Annika; Lubinski, Jan; Mannermaa, Arto; Margolin, Sara; Miao, Hui; Milne, Roger L.; Neuhausen, Susan L.; Nevanlinna, Heli; Olson, Janet E.; Peterlongo, Paolo; Peto, Julian; Pylkäs, Katri; Sawyer, Elinor J.; Schmidt, Marjanka K.; Schmutzler, Rita K.; Schneeweiss, Andreas; Schoemaker, Minouk J.; See, Mee Hoong; Southey, Melissa C.; Swerdlow, Anthony; Teo, Soo H.; Toland, Amanda E.; Tomlinson, Ian; Truong, Therese; Van Asperen, Christi J.; Van den Ouweland, Ans M.W.; Van der Kolk, Lizet E.; Winqvist, Robert; Yannoukakos, Drakoulis; Zheng, Wei; Dunning, Alison M.; Easton, Douglas F.; Henderson, Alex; Hogervorst, Frans B.L.; Izatt, Louise; Offitt, Kenneth; Side, Lucy E.; Jansen van Rensburg, Elizabeth; McGuffog, Lesley; Antoniou, Antonis C.; Chenevix-Trench, Georgia; Spurdle, Amanda B.; Goldgar, David E.; De la Hoya, Miguel; Radice, Paolo (Wiley, 2018-05)
    Although the spliceogenic nature of the BRCA2 c.68-7T > A variant has been demonstrated, its association with cancer risk remains controversial. In this study, we accurately quantified by real-time PCR and digital PCR ...
  • Breast cancer : when do you stop reading the literature? 
    Wingfield, Brenda D. (AOSIS Open Journals, 2016-01)
    Science and research consume a substantial – some might say the greater part – of my life. It is an all-consuming passion that many fail to understand. Professionally, I divide my time between managing a substantial ...
  • Breast cancer risk variants at 6q25 display different phenotype associations and regulate ESR1, RMND1 and CCDC170 
    Dunning, Alison M.; Michailidou, Kyriaki; Kuchenbaecker, Karoline B.; Thompson, Deborah; French, Juliet D.; Beesley, Jonathan; Healey, Catherine S.; Kar, Siddhartha; Pooley, Karen A.; Lopez-Knowles, Elena; Dicks, Ed; Barrowdale, Daniel; Sinnott-Armstrong, Nicholas A.; Sallari, Richard C.; Hillman, Kristine M.; Kaufmann, Susanne; Sivakumaran, Haran; Marjaneh, Mahdi Moradi; Lee, Jason S.; Hills, Margaret; Jarosz, Monika; Drury, Suzie; Canisius, Sander; Bolla, Manjeet K.; Dennis, Joe; Wang, Qin; Hopper, John L.; Southey, Melissa C.; Broeks, Annegien; Schmidt, Marjanka K.; Lophatananon, Artitaya; Muir, Kenneth; Beckmann, Matthias W.; Fasching, Peter A.; Dos-Santos-Silva, Isabel; Peto, Julian; Sawyer, Elinor J.; Tomlinson, Ian; Burwinkel, Barbara; Marme, Frederik; Guenel, Pascal; Truong, Therese; Bojesen, Stig E.; Flyger, Henrik; Gonzalez-Neira, Anna; Perez, Jose I.A.; Anton-Culver, Hoda; Eunjung, Lee; Arndt, Volker; Brenner, Hermann; Meindl, Alfons; Schmutzler, Rita K.; Brauch, Hamann; Ute Hiltrud; Aittomaki, Kristiina; Blomqvist, Carl; Ito, Hidemi; Matsuo, Keitaro; Bogdanova, Natasha; Dork, Thilo; Lindblom, Margolin; Sara Annika; Kosma, Veli-Matti; Mannermaa, Arto; Tseng, Chiu-chen; Wu, Anna H.; Lambrechts, Diether; Wildiers, Hans; Chang-Claude, Jenny; Rudolph, Anja; Peterlongo, Paolo; Radice, Paolo; Olson, Janet E.; Giles, Graham G.; Milne, Roger L.; Haiman, Christopher A.; Henderson, Brian E.; Goldberg, Mark S.; Teo, Soo H.; Yip, Cheng Har; Silje, Nord; Borresen-Dale, Anne-Lise; Kristensen, Vessela; Long, Jirong; Zheng, Wei; Pylkas, Katri; Winqvist, Robert; Andrulis, Irene L.; Devilee, Peter; Seynaeve, Caroline; Figueroa, Jonine; Sherman, Mark E.; Czene, Kamila; Darabi, Hatef; Hollestelle, Antoinette; Van den Ouweland, Ans M.W.; Humphreys, Keith; Gao, Yu-Tang; Shu, Xiao-Ou; Cox, Angela; Cross, Simon S.; Blot, William; Cai, Qiuyin; Ghoussaini, Maya; Perkins, Babara J.; Shah, Mitul; Choi, Ji-Yeob; Kang, Daehee; Lee, Soo Chin; Hartman, Mikael; Kabisch, Maria; Torres, Diana; Jakubowska, Anna; Lubinski, Jan; Brennan, Paul; Sangrajrang, Suleeporn; Ambrosone, Christine B.; Toland, Amanda Ewart; Shen, Chen-Yang; Wu, Pei-Ei; Orr, Nick; Swerdlow, Anthony; McGuffog, Lesley; Healey, Sue; Lee, Andrew; Kapuscinski, Miroslav; John, Esther M.; Terry, Mary Beth; Daly, Mary B.; Goldgar, David E.; Buys, Saundra S.; Janavicius, Ramunas; Tihomirova, Laima; Tung, Nadine; Dorfling, Cecilia Maria; Janse van Rensburg, E.S. (Elsie); Neuhausen, Susan L.; Ejlertsen, Bent; Hansen, Thomas V.O.; Osorio, Ana; Benitez, Javier; Rando, Rachel; Weitzel, Jeffrey N.; Bonanni, Bernardo; Peissel, Bernard; Manoukian, Siranoush; Papi, Laura; Ottini, Laura; Konstantopoulou, Irene; Apostolou, Paraskevi; Garber, Judy; Frost, Debra; Rashid, Muhammad Usman; EMBRACE; Izatt, Louise; Ellis, Steve; Godwin, Andrew K.; Arnold, Norbert; Niederacher, Dieter; Rhiem, Kerstin; Bogdanova-Markov, Nadja; Sagne, Charlotte; Stoppa-Lyonnet, Dominique; Damiola, Francesca; GEMO Study Collaborators; Sinilnikova, Olga M.; Mazoyer, Sylvie; Isaacs, Claudine; Claes, Kathleen B.M.; De Leeneer, Kim; De la Hoya, Miguel; Caldes, Trinidad; Nevanlinna, Heli; Khan, Sofia; Mensenkamp, Arjen R.; HEBON; Hooning, Maartje J.; Rookus, Matti A.; Kwong, Ava; Olah, Edith; Diez, Orland; Brunet, Joan; Pujana, Miquel Angel; Gronwald, Jacek; Huzarski, Tomasz; Barkardottir, Rosa B.; Laframboise, Rachel; Soucy, Penny; Montagna, Marco; Agata, Simona; Teixeira, Manuel R.; kConFab Investigators; Park, Sue Kyung; Lindor, Noralane; Couch, Fergus J.; Tischkowitz, Marc; Foretova, Lenka; Vijai, Joseph; Offit, Kenneth; Singer, Christian F.; Rappaport, Christine; Phelan, Catherine M.; Greene, Mark H.; Mai, Phuong L.; Rennert, Gad; Imyanitov, Evgeny N.; Hulick, Peter J.; Phillips, Kelly-Anne; Piedmonte, Marion; Mulligan, Anna Marie; Glendon, Gord; Bojesen, Anders; Thomassen, Mads; Caligo, Maria A.; Yoon, Sook-Yee; Friedman, Eitan; Laitman, Yael; Borg, Ake; Von Wachenfeldt, Anna; Ehrencrona, Hans; Rantala, Johanna; Olopade, Olufunmilayo I.; Ganz, Patricia A.; Nussbaum, Robert L.; Gayther, Simon A.; Nathanson, Katherine L.; Domchek, Susan M.; Arun, Banu K.; Mitchell, Gillian; Karlan, Beth Y.; Lester, Jenny; Maskarinec, Gertraud; Woolcott, Christy; Scott, Christopher; Haakensen, Vilde; Dowsett, Mitch; Pharoah, Paul D.P.; Simard, Jacques; Hall, Per; García-Closas, Montserrat; Vachon, Celine; Chenevix-Trench, Georgia; Antoniou, Antonis C.; Easton, Douglas F.; Edwards, Stacey L. (Nature Publishing Group, 2016-04)
    We analyzed 3,872 common genetic variants across the ESR1 locus (encoding estrogen receptor a) in 118,816 subjects from three international consortia. We found evidence for at least five independent causal variants, each ...
  • Breed ancestry, divergence, admixture, and selection patterns of the Simbra crossbreed 
    Van der Nest, Magrieta Aletta; Hlongwane, Nompilo; Hadebe, Khanyisile; Chan, Wai Yin; Van der Merwe, Nicolaas Albertus (Albie); De Vos, Lieschen; Greyling, Ben; Kooverjee, Bhaveni B.; Soma, Pranisha Omduth; Dzomba, Edgar F.; Bradfield, Michael; Muchadeyi, Farai C. (Frontiers Media, 2021-01)
    In this study, we evaluated an admixed South African Simbra crossbred population, as well as the Brahman (Indicine) and Simmental (Taurine) ancestor populations to understand their genetic architecture and detect genomic ...
  • Breeders are less active foragers than non-breeders in wild Damaraland mole-rats 
    Francioli, Yannick; Thorley, Jack; Finn, Kyle T.; Clutton-Brock, Tim H.; Zottl, Markus (Royal Society, 2020-10)
    Eusocial societies are characterized by a clear division of labour between non-breeding workers and breeding queens, and queens often do not contribute to foraging, defence and other maintenance tasks. It has been suggested ...
  • A breeding goal for South African Holstein Friesians in terms of economic weights in percentage units 
    Du Plessis, Mariette; Roux, Carl Z. (South African Society for Animal Science, 1999)
    In South Africa the exact breeding goal for Holstein Friesians still needs to be determined. This means that the traits, which should be most important in selection have to be identified. One method to identify these traits ...
  • Breeding season of Epomophorus walhbergi in the lowveld of Swaziland 
    Monadjem, Ara; Reside, April E. (Zoological Society of Southern Africa, 2012-11)
    The fruit bat Epomophorus wahlbergi is abundant in the eastern parts of southern Africa, but its breeding biology remains poorly documented. This study aimed to ascertain the breeding season of this species in northeastern ...
  • Breeding status affects the expression of androgen and progesterone receptor mRNA in the brain of male Damaraland mole-rats 
    Voigt, Cornelia; Leitner, Stefan; Bennett, Nigel Charles (Wiley, 2016-03)
    The eusocial Damaraland mole-rat (Fukomys damarensis) represents an extreme example of reproductive skew, in that reproduction is completely blocked in female subordinate group members. Similarly, male subordinates within ...
  • Breeding status and social environment differentially affect the expression of sex steroid receptor and aromatase mRNA in the brain of female Damaraland mole-rats 
    Voigt, Cornelia; Gahr, Manfred; Leitner, Stefan; Lutermann, Heike; Bennett, Nigel Charles (BioMed Central, 2014-05-08)
    INTRODUCTION: The Damaraland mole-rat (Fukomys damarensis) is a eusocial, subterranean mammal, which exhibits an extreme reproductive skew with a single female (queen) monopolizing reproduction in each colony. Non-reproductive ...