3,419 research outputs found
The functional anatomy of motor recovery after stroke in man: a study positron emission tomography
No full textWe have studied regional cerebral blood flow changes in 6 patients after their recovery from a first hemiplegic stroke. All had a single well-defined hemispheric lesion and at least a brachial monoparesis that subsequently recovered. Each patient had 6 measurements of cerebral blood flow by positron tomography with 2 scans at rest, 2 during movement of fingers of the recovered hand, and 2 during movement of fingers of the normal hand. When the normal fingers were moved, regional cerebral blood flow increased significantly in contralateral primary sensorimotor cortex and in the ipsilateral cerebellar hemisphere. When the fingers of the recovered hand were moved, significant regional cerebral blood flow increases were observed in both contralateral and ipsilateral primary sensorimotor cortex and in both cerebellar hemispheres. Other regions, namely, insula, inferior parietal, and premotor cortex, were also bilaterally activated with movement of the recovered hand. We have also demonstrated, by using a new technique of image analysis, different functional connections between the thalamic nuclei and specific cortical and cerebellar regions during these movements. Our results suggest that ipsilateral motor pathways may play a role in the recovery of motor function after ischemic stroke
Clinical-anatomical correlation in a selective phonemic speech production impairment
No full textAlthough phonemic paraphasias are common in aphasic disorders, including Broca's aphasia, conduction aphasia and transcortical motor aphasia, selective phonemic speech production impairment, or phonemic disintegration, is unusual. A patient with a selective phonemic speech production disorder underwent clinical, neuropsychological and structural neuroradiological assessment over a period of 6 years. The disorder was characterised by phonemic paraphasias (phonemic disintegration) with preserved comprehension and naming. Imaging showed a focal lesion in the white matter of the left precentral gyrus and, to a lesser extent, the posterior part of the left middle frontal gyrus, with overlying cortical atrophy. Biopsy of the lesion, after several years of observation, showed a calcified haemangioma. Clinical-anatomical correlation in this case suggests the importance of primary motor cortex of the inferior precentral (pre-Rolandic) gyrus and subjacent white matter in phoneme production, with sparing of the posterior inferior frontal gyrus (Broca's area)
Reformulating the rj-McMC Algorithm for 3D Inversion of Passive Seismic Data for Near-Surface Characterization
No full textGeophysical subsurface characterization techniques could, due to their non-invasive nature, play a crucial role in the design and subsequent construction of infrastructure in urban & industrial environ- ments. Geo-data specialist company Fugro sees potential in upgrading their current ambient-seismic- noise-tomography workflow, to make use of state-of-the-art inversion schemes with the main goal of increasing the quality and accuracy of the initial-site characterization delivered to clients. In this thesis I explore the feasibility of utilizing the reverse-jump Markov chain Monte Carlo (rj-McMC) algorithm for the inversion of ambient seismic noise for characterization in urban & industrial environments. Specif- ically, testing the potential of scaling down this inversion algorithm to fit in a small scale, near-surface framework. To achieve this, I first carried out analyses to evaluate the appropriate Rayleigh wave frequency range, after which realistic noise hyperparameters, suited for this reduced scale problem, were obtained. Because of the potential exploitation of in-situ borehole measurements, I reformulated the Bayesian prior within the rj-McMC algorithm to implement these constraining shear wave velocity values appropriately. I conducted extensive synthetic experiments to gain insight into the behavior of this adapted algorithm, from which it was concluded that the inherent dynamic discretization partially prevents these constraints from being implemented to their full extent. Nevertheless, promising results lead me to conclude that the use of the rj-McMC algorithm for application in near-surface urban & industrial environments is feasible.Applied Geophysics | IDEA Leagu
Voting over piece-wise linear tax methods
No full textWe analyze the problem of choosing the most appropriate method for apportioning taxes in a democracy. We consider a simple theoretical model of taxation and restrict our attention to piece-wise linear tax methods, which are almost ubiquitous in advanced democracies world- wide. We show that if we allow agents to vote for any method within a rich domain of piece-wise linear methods, then a majority voting equilibrium exists. Furthermore, if most voters have income below mean income then each method within the domain can be supported in equilibrium.voting, taxes, majority, single-crossing, Talmud
Clowns, Fools, and Killers: An Exploration of Horror, Comedy, and Madness Through the Roles of Murderer 2 and Sir Richard Ratcliffe in William Shakespeare\u27s Richard III
No full textThis document is a thesis submitted in partial fulfillment of the Master of Fine Arts degree in Theatre Arts with a Concentration in Musical Theatre. It is a detailed account of author RJ Magee’s artistic and scholarly process in creating the roles of Murderer 2 and Sir Richard Ratcliffe in William Shakespeare’s Richard III. The production was performed as part of Minnesota State University, Mankato’s mainstage season in October of 2022. In five chapters, this thesis chronicles the actor’s process: a preproduction analysis, a historical and critical perspective, a rehearsal and performance journal, a post-production analysis, and a process development analysis. Appendices and works cited are included
Belittling Ern: the changing performance dynamic of Morecambe and Wise
No full textDespite their renown as one of the most successful double acts in British television history, Eric Morecambe and Ernie Wise have received scant academic attention. However, they have been celebrated in numerous biographies and documentaries, as result of which various narratives have come to be constructed around them: namely, that their success at the BBC in the 1970s was in large part due to the re-working of their screen personae by writer Eddie Braben. Braben claimed to be the first person to have incorporated the real bond of affection that existed between the men into their screen alter egos, and also stated that his reimagining of Ernie Wise’s character as a pompous yet talentless writer allowed him to eschew the traditional role of a straight man and feed.
Drawing upon archive interviews, written accounts and textual analyses of Morecambe & Wise’s television performances, both at the BBC in the 1970s and in the 1960s at ATV, this article demonstrates that their personalities were very much an established part of the act prior to Braben’s arrival, and that his reinvention of their screen dynamic, while capitalising upon Eric Morecambe’s comic talents, in fact served to weaken Wise’s agency as a performer
Voting over piece-wise linear tax methods
No full textWe analyze the problem of choosing the most appropriate method for apportioning taxes in a democracy. We consider a simple model of taxation and restrict our attention to piece-wise linear tax methods, which are almost ubiquitous in advanced democracies worldwide. In spite of facing an impossibility result saying that if we allow agents to vote for any piece-wise linear tax method no equilibrium exists, we show that if we limit the domain of admissible methods in a meaningful way, albeit not restrictive, an equilibrium does exist. We also show that, for such a domain, a wide variety of methods can be supported in equilibrium. This last result provides rationale for some activities of special interest groups.voting, taxes, majority, single crossing, special interest politics.
Sucking behavior of dairy calves fed milk ad-libitum by bucket or teat
No full textPT: J; CR: 1981, BMDP STATISTICAL SOF, P94 AHMED AK, 1987, THESIS U HOHENHEIM ALEXANDER GI, 1954, AUST VET J, V30, P68 BLASS EM, 1980, SCIENCE, V210, P15 DEWILT JG, 1985, BEHAVIOUR WELFARE VE FALLON RJ, 1980, IR J AGR RES, V19, P67 HAFEZ ESE, 1968, Z TIERPSYCHOL, V25, P187 HOYER N, 1954, QUEENSLAND AGR J, V79, P46 JAMES WT, 1957, J COMP PHYSL PSYCHOL, V50, P375 KESLER EM, 1956, J DAIRY SCI, V39, P542 KITTNER M, 1967, ARCH TIERZUCHT, V10, P41 KITTNER M, 1967, TIERZUCHTER, V21, P584 KOEPKE JE, 1971, J COMP PHYSIOL PSYCH, V75, P363 MEES AMF, 1984, KTBL SCHRIFT, V299, P82 METZ JHM, 1975, 7512 MED LANDB HOG METZ JHM, 1984, P INT C APPL ETH FAR, P70 METZ JHM, 1987, IN PRESS REIZQUALITA MILLER NE, 1967, HDB PHYSL 6, V1, P51 MORRILL JL, 1981, J DAIRY SCI, V64, P146 RIESE G, 1977, DTSCH TIERARZTL WSCH, V84, P388 ROY JHB, 1980, CALF SCHEURMANN E, 1974, URSACHE BESEITIGUNG, P14 STEPHENS DB, 1974, ANIM PROD, V18, P23 TOATES F, 1986, MOTIVATIONAL SYSTEMS WALKER DE, 1950, B ANIM BEHAV, V1, P5 WEBSTER AJF, 1981, ALTERNATIVES INTENSI, P86 WISE GH, 1968, J DAIRY SCI, V51, P452 WISE GH, 1976, J DAIRY SCI, V59, P97 WOLFF PH, 1968, BRAIN BEHAV EVOLUT, V1, P354; NR: 29; TC: 33; J9: APPL ANIM BEHAV SCI; PG: 11; GA: Q2864Source type: Electronic(1
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