Improving pod borer complex tolerance in cultivated pigeonpea(Cajanuscajan)by using wild Cajanusspecies

Pod borer (Helicoverpa armigera Hübner) is the single largest yield reducing factor in food legumes. Worldwide, pod borer causes an estimated loss of over $2 billion annually, despite over$1 billion value of insecticides used to control this devastating pest. In pigeonpea(Cajanuscajan(L.) Millsp.), an important food grain legume crop of the semi-arid tropics, Helicoverpa armigera causes maximum yield losses (25-70%) followed by pod fly, Melanagromyzaobtusa(10-50%), Marucavitrata(5-25%) and pod bug, Clavigrallagibbosa(10-30%). High levels of resistance to pod borer is not available in the cultivated genepool, which necessitates the exploitation of new anddiverse sources of variations

A landscape of change: curatorships breathe new life into historic properties

Supplementary methods (text S1), tables s1-s11, figures s1-s

Apo B100 similarities to viral proteins suggest basis for LDL-DNA binding and transfection capacity

LDL mediates transfection with plasmid DNA in a variety of cell types in vitro and in several tissues in vivo in the rat. The transfection capacity of LDL is based on apo B100, as arginine/lysine clusters, suggestive of nucleic acid-binding domains and nuclear localization signal sequences, are present throughout the molecule. Apo E may also contribute to this capacity because of its similarity to the Dengue virus capsid proteins and its ability to bind DNA. Synthetic peptides representing two apo B100 regions with prominent Arg/Lys clusters were shown to bind DNA. Region 1 (0014Lys-Ser 0160) shares sequence motifs present in DNA binding domains of Interferon Regulatory Factors and Flaviviridae capsid/core proteins. It also contains a close analog of the B/E receptor ligand of apo E. Region 1 peptides, B1-1 (0014Lys-Glu0054) and B1-2 (0055Leu- Ala0096), mediate transfection of HeLa cells but are cytotoxic. Region 2 (3313Asp-Thr3431), containing the known B/E receptor ligand, shares analog motifs with the human herpesvirus 5 immediate-early transcriptional regulator ( UL122) and Flaviviridae NS3 helicases. Region 2 peptides, B2-1 (3313Asp-Glu3355), and B2-2 (3356Gly-Thr3431) are ineffective in cell transfection and are noncytotoxic.jlr These results confirm the role of LDL as a natural transfection vector in vivo, a capacity imparted by the apo B100, and suggest a basis for Flaviviridae cell entry. Copyright © 2010 by the American Society for Biochemistry and Molecular Biology, Inc

Rolling friction of a viscous sphere on a hard plane

A first-principle continuum-mechanics expression for the rolling friction coefficient is obtained for the rolling motion of a viscoelastic sphere on a hard plane. It relates the friction coefficient to the viscous and elastic constants of the sphere material. The relation obtained refers to the case when the deformation of the sphere $\xi$ is small, the velocity of the sphere $V$ is much less than the speed of sound in the material and when the characteristic time $\xi/V$ is much larger than the dissipative relaxation times of the viscoelastic material. To our knowledge this is the first ``first-principle'' expression of the rolling friction coefficient which does not contain empirical parameters.Comment: 6 pages, 2 figure

A Decolonial Critique of the Racialized “Localwashing” of Extraction in Central Africa

Responding to calls for increased attention to actions and reactions “from above” within the extractive industry, we offer a decolonial critique of the ways in which corporate entities and multinational institutions propagate racialized rhetoric of “local” suffering, “local” consultation, and “local” fault for failure in extractive zones. Such rhetoric functions to legitimize extractive intervention within a set of practices that we call localwashing. Drawing from a decade of research on and along the Chad-Cameroon Oil Pipeline, we show how multi-scalar actors converged to assert knowledge of, responsibility for, and collaborations with “local” people within a racialized politics of scale. These corporate representations of the racialized “local” are coded through long-standing colonial tropes. We identify three interrelated and overlapping flexian elite rhetoric(s) and practices of racialized localwashing: (a) anguishing, (b) arrogating, and (c) admonishing. These elite representations of a racialized “local” reveal diversionary efforts “from above” to manage public opinion, displace blame for project failures, and domesticate dissent in a context of persistent scrutiny and criticism from international and regional advocates and activists

Evaluation of the effect of different Dates of Sowing Regimes in Chickpea against Legume Pod Borer, Helicoverpa armigera (Hubner)

Effect of different sowing dates on chickpea crop and varietal factors against the incidence of legume pod borer Helicoverpa armigera, pod damage and yield were studied at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Hyderabad, Telangana during the post rainy seasons of 2019-20, and 2020-21. Ten Chickpea genotypes were sown at monthly intervals during first weeks of September, October and November. Each entry was sown in a 6 row plots, with 10 x 30 cm spacing. There were four replications in a split plot design. Among the different sowing regimes tested, November sown crop was found to be optimal and right time for sowing of the chickpea genotype to evade the pod borer coincidence. The borer population fluctuated with the change in dates of sowing. Pod borer population was higher in the early sown crop (September) and with delayed dates of sowing in October and November population decreased. There were significant differences in percent pod damage across genotypes ranging from 10.50 to 40.66 per cent. Minimum pod damage was observed in ICCV 10 and maximum pod damage was observed in ICC 3137. The grain yield ranged from 316.4 kg/ha to 836.1 kg/ha. The highest grain yield was recorded in ICCV 10 and lowest in ICC 3137. Correlation results of pod borer incidence in ICC 3137 showed positive correlation with maximum, minimum temperature and solar radiation, while rainfall and humidity were negatively correlated. Screening the different chickpea genotypes for resistance or tolerance to H. armigera allowed us in detection of a resistant/tolerant varieties which has shown the minimum level of damage in pods and further for ensuring higher yield with less pod borer damage, November is the optimal time for sowing of Chickpea

Queering Development? The Unsettling Geographies of South–South Cooperation

This paper deploys queer theory as a way of approaching South–South Cooperation (SSC). It examines the ways in which Southern development partners are not simply up-ending the long-standing spatialities, imaginaries and identities (re)produced through the mainstream international development regime, but queering terminologies and definitions, while presenting themselves in fluid ways, enrolling different identities and attributes in different places and to different audiences. At the same time, a queer lens reveals the (re)inscription of gendered, sexualised and racialised identities and hierarchies through the relationships, intimacies and practices of SSC. The paper proposes that queer theory can offer productive insights into the complex and compelling phenomenon of SSC, and the transgressive challenges to the postcolonial hierarchies and binaries of “traditional” international development