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  • 1
    Online Resource
    Online Resource
    Singapore :Springer Nature Singapore :
    Keywords: Invertebrates. ; Ecology . ; Biotic communities. ; Population biology. ; Invertebrate Zoology. ; Ecology. ; Community and Population Ecology.
    Abstract: This book presents comprehensive information on various aspects of ecology with special reference to insects, to form a platform to design an ecologically sound insect pest management. Insects are the most dominant and diverse group of living organism on earth. Owing to their smaller size, smaller space and food requirements, more number of generation per unit time, insects serves as one of the best subject matter for studies on various ecological aspects such as chemical ecology, population dynamics, predator/parasitoid-prey interactions etc. The knowledge on various aspects of insect ecology helps in formulating an effective environmentally benign insect pest management. This book is of interest and use to the post graduate students and researchers working on various aspects of insect ecology with special emphasis on population dynamics, chemical ecology, tri tropic interactions, ecological engineering and Ecological Insect pest management.
    Type of Medium: Online Resource
    Pages: XVII, 228 p. 1 illus. , online resource.
    Edition: 1st ed. 2022.
    ISBN: 9789811917820
    DDC: 592
    Language: English
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  • 2
    Publication Date: 1998-08-14
    Description: Transcription factors of the nuclear factor-kappaB/rel (NF-kappaB) family may be important in cell survival by regulating unidentified, anti-apoptotic genes. One such gene that protects cells from apoptosis induced by Fas or tumor necrosis factor type alpha (TNF), IEX-1L, is described here. Its transcription induced by TNF was decreased in cells with defective NF-kappaB activation, rendering them sensitive to TNF-induced apoptosis, which was abolished by transfection with IEX-1L. In support, overexpression of antisense IEX-1L partially blocked TNF-induced expression of IEX-1L and sensitized normal cells to killing. This study demonstrates a key role of IEX-1L in cellular resistance to TNF-induced apoptosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, M X -- Ao, Z -- Prasad, K V -- Wu, R -- Schlossman, S F -- AI12069/AI/NIAID NIH HHS/ -- P30AI28691/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 14;281(5379):998-1001.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Tumor Immunology, Dana-Farber Cancer Institute, and the Department of Medicine, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9703517" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD95/physiology ; Apoptosis/genetics/*physiology ; Apoptosis Regulatory Proteins ; Cell Line ; Cell Survival ; Cloning, Molecular ; DNA, Antisense/genetics ; Gene Expression Regulation ; Genetic Vectors ; Humans ; Immediate-Early Proteins/genetics/*physiology ; Jurkat Cells ; Membrane Glycoproteins/genetics/*physiology ; Membrane Proteins ; Mice ; NF-kappa B/*physiology ; *Neoplasm Proteins ; Transfection ; Tumor Necrosis Factor-alpha/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2012-09-01
    Description: Identification of the causal genes that control complex trait variation remains challenging, limiting our appreciation of the evolutionary processes that influence polymorphisms in nature. We cloned a quantitative trait locus that controls plant defensive chemistry, damage by insect herbivores, survival, and reproduction in the natural environments where this polymorphism evolved. These ecological effects are driven by duplications in the BCMA (branched-chain methionine allocation) loci controlling this variation and by two selectively favored amino acid changes in the glucosinolate-biosynthetic cytochrome P450 proteins that they encode. These changes cause a gain of novel enzyme function, modulated by allelic differences in catalytic rate and gene copy number. Ecological interactions in diverse environments likely contribute to the widespread polymorphism of this biochemical function.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3872477/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3872477/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Prasad, Kasavajhala V S K -- Song, Bao-Hua -- Olson-Manning, Carrie -- Anderson, Jill T -- Lee, Cheng-Ruei -- Schranz, M Eric -- Windsor, Aaron J -- Clauss, Maria J -- Manzaneda, Antonio J -- Naqvi, Ibtehaj -- Reichelt, Michael -- Gershenzon, Jonathan -- Rupasinghe, Sanjeewa G -- Schuler, Mary A -- Mitchell-Olds, Thomas -- R01 GM086496/GM/NIGMS NIH HHS/ -- R01-GM079530/GM/NIGMS NIH HHS/ -- R01-GM086496/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Aug 31;337(6098):1081-4. doi: 10.1126/science.1221636.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Institute for Genome Sciences and Policy, Duke University, Durham, NC 27708, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22936775" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Amino Acid Substitution ; Arabidopsis/genetics/metabolism/parasitology ; *Brassicaceae/genetics/metabolism/parasitology ; Cytochrome P-450 Enzyme System/*genetics ; Gene Dosage ; Gene-Environment Interaction ; Glucosinolates/biosynthesis/*genetics ; Herbivory/physiology ; Methionine/genetics/metabolism ; Molecular Sequence Data ; Plant Leaves/genetics/metabolism/parasitology ; Plants, Genetically Modified/genetics/metabolism/parasitology ; Polymorphism, Genetic ; *Quantitative Trait Loci ; *Quantitative Trait, Heritable ; *Selection, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2011-08-30
    Electronic ISSN: 1756-0357
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Medicine , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 5
    Publication Date: 2003-03-01
    Print ISSN: 1084-0699
    Electronic ISSN: 1943-5584
    Topics: Architecture, Civil Engineering, Surveying , Geography
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  • 6
    ISSN: 1432-1432
    Keywords: Lymphocytes ; B cells ; T cells ; Antigen P1 ; Topoisomerase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary During the differentiation of the clonally distributed lymphocytes of mouse and man into mature resting B and T cells, their DNA becomes tightly packed into dense heterochromatin masses and exhibits very little transcriptional activity; it also becomes extensively nicked, containing some 3000–4000 single-strand breaks per diploid genome. The nuclear matrix is sparse and poorly organized and there are but trace amounts of the matrix-linked enzyme DNA topoisomerase II; the nucleus of these small cells is surrounded by a thin rim of cytoplasm. The resting cell can thus be considered (by analogy to a sperm cell) as a vector for transporting tightly packed and relatively inert genetic information to all parts of the body. When the lymphocyte is stimulated to enter a proliferative cycle by binding of appropriately presented antigen or mitogen to relevant membrane receptors, the cell enlarges, due to increased synthesis of protein; the dense heterochromatin is pulled out into very small clumps, as a result of an enormous growth in size as well as complexity of the nuclear matrix, and a great increase in transcriptional activity occurs. We have identified four nuclear matrix antigens that are very widely conserved in the evolution of eucaryotes and that occupy distinctive domains in interphase nuclei. Of particular interest is antigen P1, detected in organisms ranging from algae to mammals. By virtue of its location at the interface between nuclear envelope and chromatin, we propose that it plays a major and evolutionarily conserved role in chromatin organization and orientation in all eucaryotic cell types. Prior to these events, the DNA strand breaks are rejoined by a mechanism dependent on poly(ADP ribose) synthetase; rejoining of the breaks is required in order for the cells to enter the S phase of the cell cycle. Under certain experimental conditions, the induction of DNA topoisomerase II is clearly seen to precede DNA replication; topoisomerase II may be involved in some of the nuclear changes of blastogenesis. The evidence suggests that induction of single-strand breaks in DNA may be a general feature in the evolution of differentiated somatic cells. The selective advantage of the endogenously produced DNA strand breaks may be to provide an additional mechanism that prevents the differentiated cell from replicating its genome in the absence of an appropriate proliferative signal.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 63 (1993), S. 1898-1900 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Novel ferroelectric bismuth vanadate, Bi2VO5.5 (BVO), thin films have been grown between lattice matched metallic LaNiO3 (LNO) layers deposited on SrTiO3 (STO) by the pulsed laser deposition technique. LNO/BVO/LNO/STO and Au/BVO/LNO/STO trilayer structures exhibited c-oriented (001) growth of BVO. LNO has been found to be a good metallic electrode with sheet resistance ∼20 Ω in addition to aiding c-axis oriented BVO growth. The dielectric constant, εr of LNO/BVO/LNO/STO, at 300 K was about 12. However, when an Au electrode was used on top of BVO/LNO/STO film, it showed a significant improvement in the dielectric constant (εr=123). The ferroelectric properties of BVO thin films have been confirmed by hysteresis behavior with a remnant polarization, Pr=4.6×10−8 C/cm2 and coercive field, Ec=23 kV/cm at 300 K.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 55 (1999), S. 234-236 
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 54 (1998), S. 1881-1882 
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 353 (1991), S. 496-496 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - The contention of Jesse H. Au-subel (Nature 350, 649; 1991) that the world need not worry unduly about climate change because it has developed or can develop the technology for adaptation sounds rather hollow in developing countries. Those who have the money and the technology may be able to ...
    Type of Medium: Electronic Resource
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