This essay has two strands.It examines Simone White’s writing on U.S.Trap in Dear Angel of Death(2017),bringing in questions of gender and of the history of writings of“The Music,”in dialogue with thinkers such as ...This essay has two strands.It examines Simone White’s writing on U.S.Trap in Dear Angel of Death(2017),bringing in questions of gender and of the history of writings of“The Music,”in dialogue with thinkers such as Amiri Baraka and Nathaniel Mackey.Historicizing writings on Black music,and their intersections with questions of gender and class,the essay also reflects on the relations between U.S.and U.K.thinking on anti-blackness and music,and sketches some speculative lineages for the different poetic traditions from which such work emerges.Exploring Trap’s address to male desire and vulnerability within the context of anti-black violence and the American carceral State,White hears in Trap something beyond nihilism,even if only as proxy or metaphor—an expression of desire and horror which is the threat of aliveness in the face of social death.The essay also explores U.K.-born,U.S.-based D.S.Marriott’s engagement with grime in his most recent book of poetry,Duppies(2017,U.S.edition 2019).“Post-work”and“post-brexit,”Marriott’s grime poetics registers the racial antagonisms unleashed by the Brexit vote,and harks back to the 2011 U.K.riots triggered by Mark Duggan’s murder at the hands of the police.Marriott understands grime as representing performances of labor,and racialized identity performance itself as a kind of un-remunerated labor,related to Black social death.Both internalizing and refusing the interpellation of the police and state apparatus,and often literally unintelligible to white mainstream society,it is a space of performative subversion,powerful even when mocked,derided or ignored.As“the thread which links afro-pessimism to afro-futurism,”grime could be positioned as a theoretical solution to ongoing debates on Afro-pessimism and Afro-optimism;but it“proceeds without ties or duplicity,”refusing identification or pigeonholing.Neither grime nor Trap,Marriott’s nor White’s poetry,ask for or require empathy.Their“fierce rigor and method”are tools of diagnosis and resistance vital for understanding poetry,race and politics today.展开更多
The physical aging behavior of atactic polystyrene (aPS) films achieved under different drawing conditions has been studied by optical birefringence and modulate differential scanning: calorimeter (m.d.s.c.). The resu...The physical aging behavior of atactic polystyrene (aPS) films achieved under different drawing conditions has been studied by optical birefringence and modulate differential scanning: calorimeter (m.d.s.c.). The results show that on annealing at specific temperature below glass transition temperatue (T-g), the enthalpy relaxation (Delta H) and T-g decrease with increasing of birefringence (Delta n). On the other baud, the effect of molecular draw ratio (MDR) is confusing: Delta H and T-g decrease with increasing of MDR in the early stage of aging, but the MDR's effect become unobvious with the development of aging. It may be concluded that the ordered domain generated by the drawing below or above glass transition temperature will affect the development of physical aging behavior. The viewpoint of cohesional entanglement is used to account for the above observations.展开更多
A teleomorph of the fungus </span><i><span style="font-family:Verdana;">Botryosphaeria</span></i><span style="font-family:Verdana;"> <i>rhodina</i>&l...A teleomorph of the fungus </span><i><span style="font-family:Verdana;">Botryosphaeria</span></i><span style="font-family:Verdana;"> <i>rhodina</i></span><span style="font-family:""><span style="font-family:Verdana;"> (Berkeley et Curtis) von Arx, (</span><i><span style="font-family:Verdana;">Br</span></i><span style="font-family:Verdana;">) </span></span><span style="font-family:""><span style="font-family:Verdana;">was evaluated as a bioherbicide for control of giant salvinia (</span><i><span style="font-family:Verdana;">Salvinia</span></i> <i><span style="font-family:Verdana;">molesta</span></i><span style="font-family:Verdana;"> D.S. Mitchell) under greenhouse conditions and in small-scale field trials. We found that fungal mycelium was highly infective and could be rapidly produced (48+</span></span><span style="font-family:""> </span><span style="font-family:Verdana;">h) in soy</span><span style="font-family:""> </span><span style="font-family:Verdana;">flour-cornmeal liquid media contained in shake flasks or fermenters. A dew period was not required to achieve infection and mortality</span><span style="font-family:""> </span><span style="font-family:""><span style="font-family:Verdana;">of inoculated plants. A surfactant (Silwet L-77, a polyalkyleneoxide modified heptamethyl-trisiloxane) incorporated in the fungal formulation was required for </span><i><span style="font-family:Verdana;">Br</span></i><span style="font-family:Verdana;"> to infect and kill plants. Infection and mortality occurred rapidly (within 48 h after treatment), and re-growth of treated plants did not occur. In replicated</span></span><span style="font-family:""> </span><span style="font-family:""><span style="font-family:Verdana;">field trials, </span><i><span style="font-family:Verdana;">Br</span></i><span style="font-family:Verdana;"> controlled giant salvinia ~95%. </span><i><span style="font-family:Verdana;">Br</span></i><span style="font-family:Verdana;"> also infected other plants, such as common salvinia (</span><i><span style="font-family:Verdana;">S.</span></i> <i><span style="font-family:Verdana;">minima</span></i><span style="font-family:Verdana;"> Baker), and </span><i><span style="font-family:Verdana;">Azolla</span></i> <i><span style="font-family:Verdana;">filiculoides</span></i><span style="font-family:Verdana;"> Lam., as determined in ongoing host range research. However, no symptomatology was</span></span><span style="font-family:""><span style="font-family:Verdana;"> observed on several economically important crop species, such as rice (</span><i><span style="font-family:Verdana;">Oryza</span></i> <i><span style="font-family:Verdana;">sativa</span></i><span style="font-family:Verdana;"> L.), corn (</span><i><span style="font-family:Verdana;">Zea</span></i> <i><span style="font-family:Verdana;">mays</span></i><span style="font-family:Verdana;"> L.), and several woody species such as bald cypress (</span><i><span style="font-family:Verdana;">Taxodium</span></i> <i><span style="font-family:Verdana;">distichum</span></i><span style="font-family:Verdana;"> L.) and loblolly pine (</span><i><span style="font-family:Verdana;">Pinus</span></i> <i><span style="font-family:Verdana;">taeda</span></i><span style="font-family:Verdana;"> L.) occurring in areas where giant salvina occurs that would be subject to contact with releases of </span></span><i><span style="font-family:Verdana;">Br</span></i><span style="font-family:""><span style="font-family:Verdana;">. These results suggest that this teleomorph of </span><i><span style="font-family:Verdana;">Botryosphaeria</span></i> <i><span style="font-family:Verdana;">rhodina</span></i><span style="font-family:Verdana;"> has potential as a bioherbicide for controlling this onerous aquatic weed.展开更多
文摘This essay has two strands.It examines Simone White’s writing on U.S.Trap in Dear Angel of Death(2017),bringing in questions of gender and of the history of writings of“The Music,”in dialogue with thinkers such as Amiri Baraka and Nathaniel Mackey.Historicizing writings on Black music,and their intersections with questions of gender and class,the essay also reflects on the relations between U.S.and U.K.thinking on anti-blackness and music,and sketches some speculative lineages for the different poetic traditions from which such work emerges.Exploring Trap’s address to male desire and vulnerability within the context of anti-black violence and the American carceral State,White hears in Trap something beyond nihilism,even if only as proxy or metaphor—an expression of desire and horror which is the threat of aliveness in the face of social death.The essay also explores U.K.-born,U.S.-based D.S.Marriott’s engagement with grime in his most recent book of poetry,Duppies(2017,U.S.edition 2019).“Post-work”and“post-brexit,”Marriott’s grime poetics registers the racial antagonisms unleashed by the Brexit vote,and harks back to the 2011 U.K.riots triggered by Mark Duggan’s murder at the hands of the police.Marriott understands grime as representing performances of labor,and racialized identity performance itself as a kind of un-remunerated labor,related to Black social death.Both internalizing and refusing the interpellation of the police and state apparatus,and often literally unintelligible to white mainstream society,it is a space of performative subversion,powerful even when mocked,derided or ignored.As“the thread which links afro-pessimism to afro-futurism,”grime could be positioned as a theoretical solution to ongoing debates on Afro-pessimism and Afro-optimism;but it“proceeds without ties or duplicity,”refusing identification or pigeonholing.Neither grime nor Trap,Marriott’s nor White’s poetry,ask for or require empathy.Their“fierce rigor and method”are tools of diagnosis and resistance vital for understanding poetry,race and politics today.
基金This work was Supported by the National Basic Research Project-Macromolecular Condensed State
文摘The physical aging behavior of atactic polystyrene (aPS) films achieved under different drawing conditions has been studied by optical birefringence and modulate differential scanning: calorimeter (m.d.s.c.). The results show that on annealing at specific temperature below glass transition temperatue (T-g), the enthalpy relaxation (Delta H) and T-g decrease with increasing of birefringence (Delta n). On the other baud, the effect of molecular draw ratio (MDR) is confusing: Delta H and T-g decrease with increasing of MDR in the early stage of aging, but the MDR's effect become unobvious with the development of aging. It may be concluded that the ordered domain generated by the drawing below or above glass transition temperature will affect the development of physical aging behavior. The viewpoint of cohesional entanglement is used to account for the above observations.
文摘A teleomorph of the fungus </span><i><span style="font-family:Verdana;">Botryosphaeria</span></i><span style="font-family:Verdana;"> <i>rhodina</i></span><span style="font-family:""><span style="font-family:Verdana;"> (Berkeley et Curtis) von Arx, (</span><i><span style="font-family:Verdana;">Br</span></i><span style="font-family:Verdana;">) </span></span><span style="font-family:""><span style="font-family:Verdana;">was evaluated as a bioherbicide for control of giant salvinia (</span><i><span style="font-family:Verdana;">Salvinia</span></i> <i><span style="font-family:Verdana;">molesta</span></i><span style="font-family:Verdana;"> D.S. Mitchell) under greenhouse conditions and in small-scale field trials. We found that fungal mycelium was highly infective and could be rapidly produced (48+</span></span><span style="font-family:""> </span><span style="font-family:Verdana;">h) in soy</span><span style="font-family:""> </span><span style="font-family:Verdana;">flour-cornmeal liquid media contained in shake flasks or fermenters. A dew period was not required to achieve infection and mortality</span><span style="font-family:""> </span><span style="font-family:""><span style="font-family:Verdana;">of inoculated plants. A surfactant (Silwet L-77, a polyalkyleneoxide modified heptamethyl-trisiloxane) incorporated in the fungal formulation was required for </span><i><span style="font-family:Verdana;">Br</span></i><span style="font-family:Verdana;"> to infect and kill plants. Infection and mortality occurred rapidly (within 48 h after treatment), and re-growth of treated plants did not occur. In replicated</span></span><span style="font-family:""> </span><span style="font-family:""><span style="font-family:Verdana;">field trials, </span><i><span style="font-family:Verdana;">Br</span></i><span style="font-family:Verdana;"> controlled giant salvinia ~95%. </span><i><span style="font-family:Verdana;">Br</span></i><span style="font-family:Verdana;"> also infected other plants, such as common salvinia (</span><i><span style="font-family:Verdana;">S.</span></i> <i><span style="font-family:Verdana;">minima</span></i><span style="font-family:Verdana;"> Baker), and </span><i><span style="font-family:Verdana;">Azolla</span></i> <i><span style="font-family:Verdana;">filiculoides</span></i><span style="font-family:Verdana;"> Lam., as determined in ongoing host range research. However, no symptomatology was</span></span><span style="font-family:""><span style="font-family:Verdana;"> observed on several economically important crop species, such as rice (</span><i><span style="font-family:Verdana;">Oryza</span></i> <i><span style="font-family:Verdana;">sativa</span></i><span style="font-family:Verdana;"> L.), corn (</span><i><span style="font-family:Verdana;">Zea</span></i> <i><span style="font-family:Verdana;">mays</span></i><span style="font-family:Verdana;"> L.), and several woody species such as bald cypress (</span><i><span style="font-family:Verdana;">Taxodium</span></i> <i><span style="font-family:Verdana;">distichum</span></i><span style="font-family:Verdana;"> L.) and loblolly pine (</span><i><span style="font-family:Verdana;">Pinus</span></i> <i><span style="font-family:Verdana;">taeda</span></i><span style="font-family:Verdana;"> L.) occurring in areas where giant salvina occurs that would be subject to contact with releases of </span></span><i><span style="font-family:Verdana;">Br</span></i><span style="font-family:""><span style="font-family:Verdana;">. These results suggest that this teleomorph of </span><i><span style="font-family:Verdana;">Botryosphaeria</span></i> <i><span style="font-family:Verdana;">rhodina</span></i><span style="font-family:Verdana;"> has potential as a bioherbicide for controlling this onerous aquatic weed.
