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1
A Physiological Neural Network for Saccadic Eye Movement ...
1994-04-01

... neurons in the paramedian pontine reticular formation, the vestibular nucleus, abducens nucleus, oculomotor nucleus, cerebellum, substantia nigra ...

DTIC Science & Technology

2
Anatomical and Physiological Characteristics of the Ferret ...
2007-01-25

... penetrations into the abducens nucleus of the monkey: eye movement recordings and histopathological evaluation of the nuclei and lateral rectus ...

DTIC Science & Technology

3
Eye Movements and Abducens Motoneuron Behavior During Cholinergically Induced REM Sleep
2009-04-01

Study objectives:The injection of cholinergic drugs in the pons has been largely used to induce REM sleep as a useful model to study different processes during this period. In the present study, microinjections of carbachol in the nucleus reticularis pontis oralis (NRPO) were performed to test the hypothesis that eye movements and the behavior of ...

PubMed Central

4
Eye Movements and Abducens Motoneuron Behavior after Cholinergic Activation of the Nucleus Reticularis Pontis Caudalis
2010-11-01

Study Objectives:The aim of this work was to characterize eye movements and abducens (ABD) motoneuron behavior after cholinergic activation of the nucleus reticularis pontis caudalis (NRPC).Methods:Six female adult cats were prepared for chronic recording of eye movements (using the scleral search-coil technique), electroencephalography, electromyography, ...

PubMed Central

5
Nuclear and infranuclear disorders.
1992-08-01

Lesions of the brain stem can either affect the nuclei or the fascicles of the third, fourth or sixth cranial nerves and thus produce ocular motor disorders. Lesions of the oculomotor nuclear complex differ from lesions of the third nerve, since the motoneurones in the nucleus are specifically grouped. Similarly, a lesion of the sixth nerve nucleus results ...

PubMed

6
The adult central nervous cholinergic system of a neurogenetic model animal, the zebrafish Danio rerio.
2004-06-18

The central nervous cholinergic system of the zebrafish (Danio rerio), a model animal for neurogenetics, is documented here using immunohistochemical methods for visualizing choline acetyltransferase (ChAT), the acetylcholine synthesizing enzyme. Neuronal cell bodies containing ChAT are present in the telencephalon (lateral nucleus of ventral telencephalic ...

PubMed

7
Red nucleus inputs to retractor bulbi motoneurones in the cat.
1986-02-01

Rubral projections to retractor bulbi motoneurones were investigated by intracellular recording in the accessory abducens nucleus in the cat. Their post-synaptic effects were compared with those of trigeminal afferent pathways. Post-synaptic potentials evoked by stimulation of the contralateral red nucleus were predominantly ...

PubMed Central

8
Abducens nerve palsy associated with a clival epidural hematoma.
2011-02-01

A clival epidural hematoma is a rare lesion that usually develops after a hyperflexion or hyperextension injury of the neck, often in a child. A 5-year-old girl presented after a motor vehicle accident with multiple cranial neuropathies, including bilateral abducens nerve pareses and right facial, glossopharyngeal, and hypoglossal cranial nerve palsies. ...

PubMed

9
Differential localization of gamma-aminobutyric acid type A and glycine receptor subunits and gephyrin in the human pons, medulla oblongata and uppermost cervical segment of the spinal cord: an immunohistochemical study.
2010-02-01

Gephyrin is a multifunctional protein responsible for the clustering of glycine receptors (GlyR) and gamma-aminobutyric acid type A receptors (GABA(A)R). GlyR and GABA(A)R are heteropentameric chloride ion channels that facilitate fast-response, inhibitory neurotransmission in the mammalian brain and spinal cord. We investigated the immunohistochemical distribution of gephyrin and the major ...

PubMed

10
Effects of electrode penetrations into the abducens nucleus of the monkey: eye movement recordings and histopathological evaluation of the nuclei and lateral rectus muscles.
2004-06-24

Two adult rhesus monkeys that had undergone 2 years of electrode penetrations into their abducens and vestibular nuclei, for chronic eye movement studies, were examined histologically. An analysis of their VIth nucleus neurons and lateral rectus muscles revealed the following. Twenty-two percent of the large neurons (approximately 30 microm in diameter), ...

PubMed

11
Oral lichen planus: an unusual cause of facial and abducens nerve paralysis associated with conjunctival and oesophageal involvement.
2004-09-01

Lichen planus (LP) is a T-cell-mediated disorder that may involve the skin, nails and mucosal surfaces. Conjunctival, laryngeal and oesophageal involvement were reported to be extremely rare manifestations of the disease. In this report, we present an oral LP case who complained of severe burning pain on his tongue and oral mucosa caused by ulcerative lesions and associated ...

PubMed

12
Unilateral Abducens Nerve Palsy as an Early Feature of Multiple Mononeuropathy Associated with Anti-GQ1b Antibody.
2011-03-04

Patients with anti-GQ1b antibody syndrome show various combinations of ophthalmoplegia, ataxia, areflexia, or altered sensorium as clinical features. We describe herein a unique case with unilateral abducens nerve palsy as an early feature of multiple mononeuropathy involving dysfunctions of the inferior dental plexus and the ulnar nerve, which was thought to be associated ...

PubMed

13
Unilateral Abducens Nerve Palsy as an Early Feature of Multiple Mononeuropathy Associated with Anti-GQ1b Antibody
2011-03-04

Patients with anti-GQ1b antibody syndrome show various combinations of ophthalmoplegia, ataxia, areflexia, or altered sensorium as clinical features. We describe herein a unique case with unilateral abducens nerve palsy as an early feature of multiple mononeuropathy involving dysfunctions of the inferior dental plexus and the ulnar nerve, which was thought to be associated ...

PubMed Central

14
Electrical and chemical stimulation of the nucleus raphe magnus inhibits induction of retching by afferent vagal fibers.
2009-09-24

Like pain sensation, vomiting is induced by C afferent fibers of the vagus nerve. Therefore, it can be assumed to be suppressed by the descending inhibitory system (DIS) of pain. In this study we examined this possibility in immobilized decerebrated dogs. Fictive retching was induced by the stimulation of abdominal afferent vagal fibers (stim-abdVAs) and identified by activity patterns of efferent ...

PubMed

15
Effects of eperisone applied by microiontophoresis on neurons in the medial and lateral vestibular nuclei.
1986-02-01

Electrophysiological studies were performed to elucidate the mechanism underlying the antivertigo action of eperisone, an antispastic drug, using cats anesthetized with alpha-chloralose. Iontophoretic application of eperisone up to 100 nA produced a dose-dependent inhibition of spike generation upon vestibular nerve stimulation in monosynaptic and polysynaptic neurons of the medial vestibular ...

PubMed

16
Distribution of AT4 receptors in the Macaca fascicularis brain.
1996-03-18

Angiotensin IV (Val Tyr Ile His Pro Phe), administered centrally, increases memory retrieval and induces c-fos expression in the hippocampus and piriform cortex. Angiotensin IV binds to a high affinity site that is quite distinct in pharmacology and distribution from the angiotensin II AT1 and AT2 receptors and is known as the AT4 receptor. These observations suggest that the AT4 receptor may have ...

PubMed

17
GABAergic Projections to the Oculomotor Nucleus in the Goldfish (carassius Auratus).
2011-02-04

The mammalian oculomotor nucleus receives a strong ?-aminobutyric acid (GABA)ergic synaptic input, whereas such projections have rarely been reported in fish. In order to determine whether this synaptic organization is preserved across vertebrates, we investigated the GABAergic projections to the oculomotor nucleus in the goldfish by combining retrograde ...

PubMed

18
GABAergic Projections to the Oculomotor Nucleus in the Goldfish (carassius Auratus)
2011-02-04

The mammalian oculomotor nucleus receives a strong ?-aminobutyric acid (GABA)ergic synaptic input, whereas such projections have rarely been reported in fish. In order to determine whether this synaptic organization is preserved across vertebrates, we investigated the GABAergic projections to the oculomotor nucleus in the goldfish by combining retrograde ...

PubMed Central

19
Hadron-Nucleus and Nucleus-Nucleus Collisions.
1983-01-01

Results obtained in studying hadron-nucleus and nucleus-nucleus collisions are presented. Emphasis is laid on the multichain fragmentation model for particle production in hadron-hadron collisions and hadron-nucleus collisions, and its connection with a r...

National Technical Information Service (NTIS)

20
Electrophysiological properties of morphologically-identified medial vestibular nucleus neurons projecting to the abducens nucleus in the chick embryo.
2010-10-29

Neurons in the medial vestibular nucleus (MVN) show a wide range of axonal projection pathways, intrinsic firing properties, and responses to head movements. To determine whether MVN neurons participating in the vestibulocular reflexes (VOR) have distinctive electrophysiological properties related to their output pathways, a new preparation was devised using transverse brain ...

PubMed

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21
Internuclear ophthalmoplegia of abduction: clinical and electrophysiological data on the existence of an abduction paresis of prenuclear origin.
1992-02-01

Three patients showed unilateral and five bilateral abduction paresis. Five had associated adduction nystagmus of the contralateral eye. Electrophysiological testing of masseter and blink reflexes indicated an ipsilateral rostral pontine or mesencephalic lesion, and excluded a lesion of the infranuclear portion of the abducens nerve. Abduction paresis was attributed to ...

PubMed

22
Extramedullary plasmacytoma masquerading as Tolosa�Hunt syndrome: a case report
2009-03-17

Painful ophthalmoplegia due to extramedullary plasmacytoma is a rare initial manifestation of multiple myeloma. The present report describes a 48-year-old man who suffered an acute onset of retro-orbital pain, left abducens palsy and left facial hypoesthesia. In addition, he exhibited an elevated erythrocyte sedimentation rate and partial responsiveness to ...

PubMed Central

23
Nasopharyngeal inflammatory pseudotumor showing abducens nerve palsy.
2011-01-12

Inflammatory pseudotumor (IPT) originated from the nasopharynx is very rare. To the authors' best knowledge, nasopharyngeal pseudotumor accompanied by abducens nerve palsy due to cavernous sinus invasion has not been reported previously. A 28-year-old male presented with abrupt-onset diplopia and right side severe headache. Physical examination revealed a ...

PubMed

24
Nucleus-Nucleus Interaction in the Glauber Approximation.
1979-01-01

A short review of nucleus-nucleus interaction at high energies is presented. The problem of elastic scattering is considered. The total cross section of nucleus-nucleus interaction is calculated by using the phase function obtained earlier. The hypothesis...

National Technical Information Service (NTIS)

25
Momentum Loss in Proton-Nucleus and Nucleus-Nucleus Collisions.
1993-01-01

An optical model description, based on multiple scattering theory, of longitudinal momentum loss in proton-nucleus and nucleus-nucleus collisions is presented. The crucial role of the imaginary component of the nucleon-nucleon transition matrix in account...

National Technical Information Service (NTIS)

26
� 1999 Macmillan Magazines Ltd letters to nature

.2 mutant embryos using anti-neuro�lament 2H3 antibody6 revealed that the hypo- glossal motor nerve (XII) and vagus (X) and spinal accessory (XI) nerves are present (data not shown). The position of origin, transcription factor pro�le, and migratory pattern of facial/glossopharyngeal, abducens, trochlear and oculomo

E-print Network

27
Primary superior oblique muscle-levator muscle synkinesis.
2007-04-01

Congenital ocular aberrant innervations can involve oculomotor, trigeminal, abducens, facial, and glossopharyngeal nerves.(1) Involvement of the trochlear nerve is considered rare or nonexistent.(1) In this report we present a case of upper eyelid retraction while looking in the field of action of the superior oblique muscle, indicating a primary superior ...

PubMed

28
Moebius syndrome and holoprosencephaly following exposure to misoprostol.
2010-11-01

Moebius syndrome is a rare disease characterized by congenital facial paralysis and abducens palsy. Involvement of other cranial nerves, orofacial dysmorphism, and limb abnormalities are frequently associated. Reported here is the case of a 10-month-old child born with Moebius syndrome and presenting with holoprosencephaly, following exposure in utero to ...

PubMed

29
A transient third cranial nerve palsy as presenting sign of spontaneous intracranial hypotension.
2011-05-05

Spontaneous intracranial hypotension is an uncommon cause of sudden and persistent headache: associated symptoms are common, among which there are cranial nerve palsies, especially of the abducens nerve. We report a case of a 21-year-old man with a transient and isolated third nerve palsy due to spontaneous intracranial hypotension. To our knowledge, there are only few reports ...

PubMed

30
Dynamics of primate oculomotor plant revealed by effects of abducens microstimulation.
2009-03-18

Despite their importance for deciphering oculomotor commands, the mechanics of the extraocular muscles and orbital tissues (oculomotor plant) are poorly understood. In particular, the significance of plant nonlinearities is uncertain. Here primate plant dynamics were investigated by measuring the eye movements produced by stimulating the abducens nucleus ...

PubMed

31
Dynamics of Primate Oculomotor Plant Revealed by Effects of Abducens Microstimulation
2009-06-18

Despite their importance for deciphering oculomotor commands, the mechanics of the extraocular muscles and orbital tissues (oculomotor plant) are poorly understood. In particular, the significance of plant nonlinearities is uncertain. Here primate plant dynamics were investigated by measuring the eye movements produced by stimulating the abducens nucleus ...

PubMed Central

32
Abducens Nerve Palsy after Lumbar Spinal Fusion Surgery with Inadvertent Dural Tearing
2009-12-31

Abducens nerve palsy associated with spinal surgery is extremely rare. We report an extremely rare case of abducens nerve palsy after lumbar spinal fusion surgery with inadvertent dural tearing, which resolved spontaneously and completely. A 61-year-old previous healthy man presented with chronic lower back pain of 6 weeks duration and ...

PubMed Central

33
Bilateral abducens palsy in a case of cytomegalovirus-associated Guillain-Barr� syndrome.
2011-07-22

Ophthalmoparesis in cytomegalovirus (CMV)-associated Guillain-Barr� syndrome (GBS) is rare. We treated a 37-year-old woman with CMV-GBS who presented with an acute onset of generalized weakness and numbness in the extremities, followed by facial diplegia, which led to mechanical ventilation. She had increased IgM and IgG-type antibodies against CMV in the serum and increased ...

PubMed

34
Self-inflicted oral trauma in a baby with Moebius syndrome.

Moebius syndrome (MS) is a rare disorder mainly characterized by bi- or unilateral palsy of the facial and abducens nerves. Among the various orofacial characteristics related to this syndrome, the following are pointed out, difficulty with sucking, tongue malformation, mandibular hypoplasia, saliva drooling, arched palate and micrognathia. In spite of the diversity of oral ...

PubMed

35
Primary clival mucocele: case report.
2011-01-01

A 40-year-old man presented with a history of diplopia due to left abducens nerve palsy persisting for a few days. Neuroimaging examinations revealed a cystic mass in the clivus and erosion of its posterior wall. Drainage of the lesion was accomplished through a small bone defect in the anterior wall of the clivus using the endoscopic endonasal ...

PubMed

36
Twitch and nontwitch motoneuron subgroups in the oculomotor nucleus of monkeys receive different afferent projections.
2004-11-01

Motoneurons in the primate oculomotor nucleus can be divided into two categories, those supplying twitch muscle fibers and those supplying nontwitch muscle fibers. Recent studies have shown that twitch motoneurons lie within the classical oculomotor nucleus (nIII), and nontwitch motoneurons lie around the borders. Nontwitch motoneurons of medial and ...

PubMed

37
Nucleus-Nucleus Interactions at High Energies.
1979-01-01

The bases of quantity theory of the simplest processes of nucleus-nucleus interaction at the medium and high energies are presented. Supposition on the factorization of density functions of the main states of the colliding nuclei is taken as the main appr...

National Technical Information Service (NTIS)

38
Higgs-Boson Production in Nucleus-Nucleus Collisions.
1992-01-01

Cross section calculations are presented for the production of intermediate-mass Higgs bosons produced in ultrarelativistic nucleus-nucleus collisions via two photon fusion. The calculations are performed in position space using Baur's method for folding ...

National Technical Information Service (NTIS)

39
Electric quadrupole excitations in relativistic nucleus-nucleus collisions
1990-08-01

Calculations are presented for electric quadrupole excitations in relativistic nucleus-nucleus collisions. The theoretical results are compared to an extensive data set and it is found that electric quadrupole effects provide substantial corrections to cross sections, especially for heavier nuclei.

Energy Citations Database

40
Dissipative Diabatic Dynamics of Nucleus-Nucleus Collisions.
1986-01-01

First numerical studies of the time-dependence of central nucleus-nucleus collisions within the dissipative diabatic approach are presented. Effects from the non-Markovian behaviour of dissipation, i.e. from the partially elastic response are illustrated ...

National Technical Information Service (NTIS)

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41
Diabatic Emission of Neutrons and Protons in Central Nucleus-Nucleus Collisions.
1985-01-01

Analytical expressions are derived for the double-differential multiplicities with respect to energy and angle for the diabatic emission of neutron and protons in central nucleus-nucleus collisions. Results are presented for sup 40 Ca+ sup 40 Ca, sup 58 N...

National Technical Information Service (NTIS)

42
Functional neuroimaging of the oculomotor brainstem network in humans.
2011-05-26

The cortical systems involved in eye movement control in humans have been investigated extensively using fMRI. In contrast, there is virtually no data concerning the functional status of the human oculomotor brainstem nuclei. This lack of evidence has usually been explained by technical constraints of EPI based imaging and anatomical characteristics of the brainstem. Against this assumption, we ...

PubMed

43
Forward Models and State Estimation in Compensatory Eye Movements
2009-11-23

The compensatory eye movement (CEM) system maintains a stable retinal image, integrating information from different sensory modalities to compensate for head movements. Inspired by recent models of the physiology of limb movements, we suggest that CEM can be modeled as a control system with three essential building blocks: a forward model that predicts the effects of motor commands; a state ...

PubMed Central

44
Consequences of unilateral hearing loss: time dependent regulation of protein synthesis in auditory brainstem nuclei.
2007-08-30

Conductive hearing impairment results in marked changes in neuronal activity in the central auditory system, particularly in young animals [Tucci, D.L., Cant, N.B., Durham, D., 1999. Conductive hearing loss results in a decrease in central auditory system activity in the young gerbil. Laryngoscope 109, 1359-1371]. To better understand the effects of conductive hearing loss (CHL) on cellular ...

PubMed

45
Rathke's cleft cyst presenting as bilateral abducens nerve palsy.
2011-12-01

We present a patient with a Rathke's cleft cyst who presented with rapidly progressive bilateral 6th nerve palsy. A 20-year-old woman with a history of cleft palate, hypertension, and hydronephrotic kidneys presented with a one month history of headache, associated with dizziness and diplopia on horizontal gaze. Examination was ...

PubMed

46
Consistent parametrisation for the production rates of negatively charged hadrons and neutral strange particles in nucleon-nucleon, nucleon-nucleus and nucleus-nucleus collisions.
1994-01-01

A parametrisation of negative hadron and neutral strange particle production was developed which consistently describes presently available data from nucleon-nuceon, nucleon-nucleus, and nucleus-nucleus collisions at a beam energy of 200 GeV per nucleon. ...

National Technical Information Service (NTIS)

47
Activity of Reticulo-MLF Neurons during Eye Movements.
1981-01-01

Oculomotor control neurons in awake, intact cats, with neurons identified through antidromic excitation is studied. Abducens motoneurons, abducens interneuron, tonic eye-position neurons, onmidirectional pause neurons, and miscellaneous types were identif...

National Technical Information Service (NTIS)

48
Symptomatic inferior cavernous sinus artery aneurysm associated with cerebral arteriovenous malformation.
2008-06-01

A 50-year-old man presented with a symptomatic aneurysm arising from the right inferior cavernous sinus artery (ICSA) associated with a cerebral arteriovenous malformation (AVM) manifesting as a 3-month history of progressive right abducens nerve palsy. Cerebral angiography demonstrated a high-flow AVM and a saccular aneurysm arising from the right ICSA ...

PubMed

49
Isolated sphenoid sinusitis presenting with unilateral VIth nerve palsy.
2004-04-01

Isolated sphenoid sinusitis is a rare disorder. There are some difficulties in its diagnosis and the first presentation of this disorder might be with complications. These complications are essentially due to the anatomical location of the sinus and its proximity to the intra-cranial and orbital contents, to which infection may easily spread. In this paper, we report a case of ...

PubMed

50
Tonic inhibition and ponto-geniculo-occipital-related activities shape abducens motoneuron discharge during REM sleep
2008-07-15

Eye movements, ponto-geniculo-occipital (PGO) waves, muscular atonia and desynchronized cortical activity are the main characteristics of rapid eye movement (REM) sleep. Although eye movements designate this phase, little is known about the activity of the oculomotor system during REM sleep. In this work, we recorded binocular eye movements by the scleral search-coil technique and the activity of ...

PubMed Central

51
Ophthalmoplegic migraine with reversible enhancement of intraparenchymal abducens nerve on MRI.
2002-02-01

We describe a patient with ophthalmoplegic migraine and right abducens nerve palsy, in whom serial magnetic resonance imaging showed a transient, gadolinium-enhancing lesion in the right lower pons, during both headache and the headache-free period. The enhancing linear lesion was felt to represent intraparenchymal fibers of the affected abducens nerve. ...

PubMed

52
Isolated abducens nerve palsy in a patient with scrub typhus.
2010-10-01

Abducens nerve palsies associated with infectious diseases are infrequent. Scrub typhus is an acute, febrile, infectious illness caused by Orientia tsutsugamushi (formerly Rickettsia tsutsugamushi), an obligate-intracellular gram-negative bacterium. The organism has been reported to be capable of entering the nervous system, causing meningitis and focal neurologic ...

PubMed

53
A family with hereditary congenital facial paresis and a brief review of the literature.
2010-10-01

Hereditary congenital facial paresis is a rare syndrome of isolated facial nerve palsy causing facial asymmetry and ptosis. Most described cases follow an autosomal dominant pattern of inheritance. It differs from Moebius syndrome, which is usually sporadic and associated with the involvement of other cranial nerves, commonly the abducens nerve in addition to orofacial and ...

PubMed

54
A case of Moebius syndrome presenting with congenital bilateral vocal cord paralysis.
2006-11-30

We describe a female infant with bilateral facial paralysis and abducens palsy. To the best of our knowledge, this is the first report of Moebius syndrome presenting with congenital bilateral vocal cord paralysis (CBVCP). Although CBVCP can be part of a recognizable syndrome, i.e. Down syndrome, 22q deletion syndrome, Robinow's syndrome and ...

PubMed

55
Experimental basis for the models of cascade propagation in atmosphere
1985-01-01

The picture of the hadron nucleus collision process is presented as it emerges on the basis of newly

NASA Technical Reports Server (NTRS)

56
EFFECTS OF SAMPLE SIZE AND STATISTICAL WEIGHTS ...
1964-05-04

... the properties of the fluctuations and the predictions of the statistical theory of the compound nucleus (used in the spirit of Ericson) is presented. ...

DTIC Science & Technology

57
ON THE INFLUENCE OF THE SHELL STRUCTURE OF THE NUCLEUS ON THE SPECTRA OF $mu$-MESIC ATOMS
1964-01-01

The results of studies on the effects of the shell structure of the Tl nucleus on the spectra of the mu -mesic Tlatom are presented. (P.C.H.)

Energy Citations Database

58
N66-13298 - NASA Technical Report Server (NTRS)

elements of the nucleus were iron (68%) and nickel (30%), with a minor content of cobalt (1.5%). In the layers surrounding the nucleus, the iron was present ...

NASA Website

59
Dissipative Collective Nuclear Motion and Nuclear Elastoplasticity.
1988-01-01

I present the theory of dissipative diabatic dynamics and nuclear elastoplasticity, and its application to nucleus-nucleus collisions with the discussion of observable effects. (ERA citation 14:018809)

National Technical Information Service (NTIS)

60
Compound nucleus emission of complex fragments at low and intermediate energies
1985-01-01

Two sets of experiments showing the compound nucleus origin of complex fragments and the Businaro-Gallone transition are presented.

DOE Information Bridge

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61
Compound Nucleus Emission of Complex Fragments at Low and Intermediate Energies.
1985-01-01

Two sets of experiments showing the compound nucleus origin of complex fragments and the Businaro-Gallone transition are presented. (ERA citation 10:019462)

National Technical Information Service (NTIS)

62
9 - NASA Technical Reports Server

Higgs-Boson Production in Nucleus-Nucleus Collisions ... We present a method to model the NEOs population in all six orbital elements, on a finely grained ...

NASA Website

63
Regge theory inspired model on nuclear destruction in high energy nucleus-nucleus interactions.
1994-01-01

A nuclear destruction model based on Regge theory of cascading into the nucleus is presented. The validity of the model is tested in the projectile and target fragmentation regions. A good agreement is obtained for g-particle multiplicity distributions on...

National Technical Information Service (NTIS)

64
Petrographic Working Model of the Rosetta Sampling and Modelling Subgroup for a Comet Nucleus.
1989-01-01

Based on the most probable ranges of the interior and surface properties of a comet nucleus as far as they are relevant for the planning of a comet nucleus sample return mission (Rosetta), documented according to the present status of discussion within th...

National Technical Information Service (NTIS)

65
Isospin mixing in the compound nucleus from Ericson fluctuations of mirror reactions
1979-01-01

A formalism is presented for extracting isospin mixing in the compound nucleus from a comparison of Ericson fluctuations in the cross section of mirror reactions. Some experimental aspects of the comparison are also discussed. NUCLEAR REACTIONS Isospin mixing in compound nucleus mirror reactions.

NASA Astrophysics Data System (ADS)

66
Coulomb effects on edge scattering in elastic nuclear collisions
2011-04-01

We present a qualitative analysis of the effects of the Coulomb force on the edge scattering produced in elastic nuclear collisions occurring under strong absorption conditions. This analysis is illustrated with several examples of nucleus-nucleus and antiproton-nucleus elastic scattering.

NASA Astrophysics Data System (ADS)

67
Strangeness enhancement and string fusion in nucleus-nucleus collisions
1995-02-01

In a Monte Carlo code based on the Quark Gluon String Model it is shown that the fusion of strings produces an enhancement of ?, ? and ? production, and a reduction of K- production and total multiplicities. The results are in reasonable agreement with most of the experimental data for hadron-hadron, hadron-nucleus and nucleus-nucleus collisions, ...

NASA Astrophysics Data System (ADS)

68
Neurobrucellosis with thalamic infarction: a case report.
2008-10-14

Brucellosis is prevalent in North and East Africa, the Middle East, South and Central Asia, South and Central America and the Mediterranean countries of Europe. In 5% of cases it may lead to central nervous system manifestation presenting most often as a meningitis or meningoencephalitis. Here we report and discuss a case of neurobrucellosis with meningitis with cranial nerves ...

PubMed

69
Divergence paresis without positional headache: an unusual presentation of cerebrospinal fluid hypovolemia after spinal anesthesia.
2006-06-01

We report a rare complication of spinal anesthesia-divergence paresis-which is characterized by an acquired horizontal diplopia at distance without evidence for abducens palsy. A 64-yr-old man underwent prostatectomy under spinal anesthesia with 2.5 mL of dibucaine hydrochloride 0.3% injected through a 20-gauge cutting-tip spinal needle. Seventeen days after the operation, the ...

PubMed

70
Clival inflammation with cavernous sinus thrombophlebitis and orbital subperiosteal abscess--case report.
2010-01-01

A 64-year-old woman presented with a very rare case of three infectious lesions, cavernous sinus thrombophlebitis, clival inflammation, and orbital subperiosteal abscess (SPA), manifesting as abducens palsy. An isolated non-specific mass in upper clivus was initially suspected to be derived from paranasal sinusitis. The clival lesion was approached by an ...

PubMed

71
Cerebral Venous Sinus Thrombosis Presenting as Transient Ischemic Attacks in a Case With Homozygous Mutations of MTHFR A1298C and CG677T.
2010-09-10

We report a case with recurrent, transient attacks of slurred speech, weakness, and numbness of the right half of the face and the right arm without seizure activity, accompanied by headache and double vision. Neurologic examination revealed bilateral papilledema and right abducens palsy. Brain magnetic resonance imaging revealed thrombosis of the dural venous sinuses and the ...

PubMed

72
Spontaneous thrombosis of intracavernous internal carotid artery aneurysm and parent artery occlusion in patients with positive balloon test occlusion--two case reports.
2001-09-01

Two patients with giant intracavernous internal carotid artery (ICA) aneurysms were intolerant to balloon test occlusion of the ICA, and later developed spontaneous thrombosis of the aneurysm and the parent ICA without ischemic sequelae. Case 1: A 60-year-old female with a giant right intracavernous ICA aneurysm presented with right abducens nerve paresis. ...

PubMed

73
Acute VI nerve palsy in a 4 year-old girl with Chiari I malformation and pontomedullary extension of syringomyelia: case report and review of the literature.
2011-05-10

We report the case of a previously healthy 4 year-old African American female who presented to the emergency department with acute onset of unilateral abducens nerve palsy and torticollis. Within 12 h of presentation, the patient's symptoms progressed to include ipsilateral facial nerve palsy and gait ataxia. On exam, the patient ...

PubMed

74
THE STRUCTURE OF THE ATOMIC NUCLEUS
1961-09-01

After a short historical introduction the spin-orbital forces of the nucleus are briefly discussed. The regularities of the nucleus at the magic numbers 2, 8, 20, 50, and 82 are noted. The character of the gamma spectrum and of beta transitions in various nuclei supports the idea of a shell structure in the nucleus. Some of ...

Energy Citations Database

75
Higgs-boson production in nucleus-nucleus collisions
1992-01-01

Cross section calculations are presented for the production of intermediate-mass Higgs bosons produced in ultrarelativistic nucleus-nucleus collisions via two photon fusion. The calculations are performed in position space using Baur's method for folding together the Weizsacker-Williams virtual-photon spectra of the two colliding nuclei. It is found that ...

NASA Astrophysics Data System (ADS)

76
Higgs-boson production in nucleus-nucleus collisions
1990-12-01

Cross-section calculations are presented for the production of intermediate-mass Higgs bosons produced in ultrarelativistic nucleus-nucleus collisions via two-photon fusion. The calculations are performed in position space using Baur's method for folding together the Weizsacker-Williams virtual-photon spectra of the two colliding nuclei. It is found that ...

NASA Astrophysics Data System (ADS)

77
Absolute calibration of a photoelectric condensation nucleus counter at low values of nucleus concentration
1969-12-01

A new absolute condensation nucleus counter was constructed to investigate the accuracy of the calibration widely used with the Pollak-Nolan photoelectric condensation nucleus counter. An attempt was made to standardize the conditions affecting calibration and, using the new counter, to recalibrate the photoelectric counter at values of extinction less ...

NASA Astrophysics Data System (ADS)

78
Are laws that govern behavior embedded in the structure of the CNS? The case of Hering's law.
1995-12-01

The pattern of axonal terminations of individual premotoneuronal medium lead burst neurons (MLBs) has been elucidated with the help of the intraaxonal recording and horseradish peroxidase injection technique in alert behaving monkeys. These findings indicate that individual MLBs do not influence individual muscles; instead they influence groups of muscles. Horizontal medium lead burst neurons ...

PubMed

79
Development and organization of the ocular motor nuclei in the larval sea lamprey, Petromyzon marinus L.: an HRP study.
1994-03-15

Retrograde transport of horseradish peroxidase (HRP) after its application into the orbit was used to investigate the development of the different ocular motor nuclei in larvae of the sea lamprey (Petromyzon marinus) and to identify their regions of origin. In the smallest larvae studied (10-19 mm in length), the oculomotor and abducens neurons were ipsilateral to the site of ...

PubMed

80
Distribution of Satb1 in the central nervous system of adult mice.
2011-06-01

This study consists of a thorough immunohistochemical examination of the expression profile of the transcription factor Satb1 (special AT-rich sequence binding protein 1) in the adult mouse central nervous system (CNS). Satb1-positive neurons were abundant in the deep layers of the neocortex, subiculum, anterior olfactory nucleus, nucleus of diagonal band, ...

PubMed

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81
A Case of Aberrant Abducens Nerve in a Cadaver and Review of Its Clinical Significance
2010-05-31

The abducens nerve usually travels from the brainstem to the lateral rectus muscle as a single trunk. However, it has been reported that this nerve could split into branches occasionally. We attempted to show the aberrant course of abducens nerve in a specimen with unilateral duplicated abducens nerve and review relevant literatures. ...

PubMed Central

82
Two-photon physics in nucleus-nucleus collisions at RHIC
1998-09-01

Ultra-relativistic heavy-ions carry strong electromagnetic and nuclear fields. Interactions between these fields in peripheral nucleus-nucleus collisions can probe many interesting physics topics. This presentation will focus on coherent two-photon and photonuclear processes at RHIC. The rates for these interactions will be high. The coherent coupling of ...

Energy Citations Database

83
TWO-PHOTON PHYSICS IN NUCLEUS-NUCLEUS COLLISIONS AT RHIC.
1998-09-10

Ultra-relativistic heavy-ions carry strong electromagnetic and nuclear fields. Interactions between these fields in peripheral nucleus-nucleus collisions can probe many interesting physics topics. This presentation will focus on coherent two-photon and photonuclear processes at RHIC. The rates for these interactions will be high. The coherent coupling of ...

DOE Information Bridge

84
Central Connection of the Optic, Oculomotor, Trochlear and Abducens Nerves in Medaka, Oryzias latipes

... were incubated for 3 hours in a 1% avidine-biotin complex (ABC: Streptavidin Biotin Complex Peroxidase kit, ... ...

NBII National Biological Information Infrastructure

85
Parity non-conserving effects in neutron-nucleus scattering.
1990-01-01

The present lecture reviews the motivations which led to study the contribution of the neutron-nucleus component to parity-non-conserving effects observed in medium-heavy nuclei and considers its present status. It is shown that it cannot account for thos...

National Technical Information Service (NTIS)

86
Two-photon physics in nucleus-nucleus collisions at RHIC.
1998-01-01

Ultra-relativistic heavy-ions carry strong electromagnetic and nuclear fields. Interactions between these fields in peripheral nucleus-nucleus collisions can probe many interesting physics topics. This presentation will focus on coherent two-photon and ph...

National Technical Information Service (NTIS)

87
The mediodorsal thalamic nucleus and schizophrenia
2008-11-01

The mediodorsal nucleus of the human thalamus is in a crucial position that allows it to establish connections with diverse cerebral structures, particularly the prefrontal cortex. The present review examines existing neurobiologic studies of the brains of people with and without schizophrenia that indicate a possible involvement of the mediodorsal ...

PubMed Central

88
The Confined Hydrogen Atom with a Moving Nucleus
2010-03-01

We study the hydrogen atom confined to a spherical box with impenetrable walls but, unlike earlier pedagogical articles on the subject, we assume that the nucleus also moves. We obtain the ground-state energy approximately by means of first-order perturbation theory and show that it is greater than that for the case in which the nucleus is clamped at the ...

ERIC Educational Resources Information Center

89
On the rotation of the IRAS�Araki�Alcock nucleus

On the rotation of the IRAS�Araki�Alcock nucleus Jana Pittichov'a Astronomical Institute in a clockwise direction. The fan with the three jets originated near the south pole of the nucleus. During was probably also present. On May 9--10 the nucleus had an outburst. Introduction The comet C/1983 H1 IRAS

E-print Network

90
Effects of electric stimulation and destruction of caudate nucleus on short-term memory.
2007-03-01

The effects of stimulation and destruction of the caudate nucleus on the cat short-term memory were studied by the method of classical delayed reactions. Short-term memory improved, if electrical stimulation of the caudate nucleus before presentation of the conditioned signal caused desynchronization of the electrocorticogram in the ...

PubMed

91
A Dimension Formula for the Nucleus of a Veronese Variety
1999-01-01

The nucleus of a Veronese variety is the intersection of all its osculating hyperplanes. Various authors have given necessary and sucient conditions for the nucleus to be empty. We present an explicit formula for the dimension of this nucleus for arbitrary characteristic of the ground eld. As a corollary, we ...

E-print Network

92
Theory of electron-positron showers in double radio sources
1982-01-01

A black hole of mass of about 300 million solar masses is assumed to be present in the nucleus of an

NASA Technical Reports Server (NTRS)

93
Reliability of Nondestructive Inspections
1978-12-01

... Recommendations for making both short- ... Page 13. SECTION II. ... The nucleus of the data presentations were planned to be graphic plots of detection ...

DTIC Science & Technology

94
Nuclear structure with pions.
1990-01-01

This paper presents a short review of the field of pion-nucleus physic and a discussion of some recent results. 25 refs., 6 figs.

National Technical Information Service (NTIS)

95
Nuclear structure with pions
1990-01-01

This paper presents a short review of the field of pion-nucleus physic and a discussion of some recent results. 25 refs., 6 figs.

DOE Information Bridge

96
Final results from the NMC
1997-04-20

A summary of the results on deep inelastic muon nucleon and muon nucleus scattering experiments performed by the NMC collaboration is presented.

Energy Citations Database

97
Decreased swelling pressure of rat nucleus pulposus associated with simulated weightlessness
1989-01-01

Data are presented on the effects of actual and simulated weightlessness on the swelling pressure of

NASA Technical Reports Server (NTRS)

98
Analysis of the TACC1 Gene from the 8p11 Chromosome ...
2001-06-01

... We have now shown, using immunohistochemistry and immunoprecipitation, that TACCl is present in the cytoplasm and the nucleus and ...

DTIC Science & Technology

99
A Novel Apoptotic Molecule Bok for the Treatment of Breast ...
2004-03-01

... in a position to detect endogenous Bok by western Blot analysis and have shown that endogenous Bok is present in the cytoplasm and nucleus of ...

DTIC Science & Technology

100
/ Present theories for the formation of molecular species observed ...

determining the nuclear structure. Molecular hydrogen will form if the nucleus is composed of almost any hydrogen- bearing compound. ...

NASA Website

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101
Motor nucleus activity fails to predict extraocular muscle forces in ocular convergence.
2011-03-30

For a given eye position, firing rates of abducens neurons (ABNs) generally (Mays et al. 1984), and lateral rectus (LR) motoneurons (MNs) in particular (Gamlin et al. 1989a), are higher in converged gaze than when convergence is relaxed, whereas LR and medial rectus (MR) muscle forces are slightly lower (Miller et al. 2002). Here, we confirm this finding for ABNs, report a ...

PubMed

102
A look into the nucleus
2002-01-01

Opposing forces in the nucleus are many, but why doesn?t the nucleus blow apart? In this portion of a tutorial on particle physics, students read that although the positive protons repel each other, the much greater, residual strong force holds the nucleus intact. An analogy about the nucleus is ...

NSDL National Science Digital Library

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