bluuebunny/crossref_metadata_2025_split huggingface dataset:
Über die Anwendung der dilatometrischen und der stalagmo‐metrischen Methode bei kinetischen Untersuchungen
Authors: Benrath A. 
Published: January 2005

AbstractDie dilatometrische und die stalagmometrische Methode wurden auf ihre Verwendbarkeit für kinetische Untersuchungen geprüft. Die Ergebnisse stimmten im ganzen mit den nach spezifischen Methoden gefundenen überein. Die bei der Hydrolyse des Acetamids auftretenden Abweichungen von früheren Befunden konnten erklärt werden.
Studien über die fraktionierte Fällung. III. Vom Mitreißen, Scheinbare Widersprüche mit theoretischen Voraussetzungen. Feigls Hypothese von der Bildung der Sulfide
Authors: Ruff Otto , Hirsch Bruno 
Published: January 2005

AbstractDie Diskussion der FEIGL'schen koordinationschemischen Studien über das analytische Verhalten von Schwermetallsulfiden und die Nachprüfung ihrer experimentellen Unterlagen hat also zu einem wenig befriedigenden Ergebnis geführt.
Über Adsorption Nr. 8. Über Die Wärmetönung bei der Adsorption von Kohlendioxyd an Holzkohle
Authors: Magnus A. , Braner M. 
Published: January 2005

Abstract1. Mit einem Wasserkalorimeter wurde die Adsorptionswärme der Kohlensäure an Holzkohle in verschiedenen Druck‐ und Temperaturgebieten bestimmt.
Zur Thermochemie des Fluors. I
Authors: v. Wartenberg H. , Fitzner O. 
Published: January 2005

Abstract1. Durch elektrische Heizung des Calorimeters selbst oder seiner nächsten Umgebung kann ohne Verringerung der Genauigkeit auch bei die Zimmertemperatur wesentlich übersteigenden Temperaturen calorimetriert werden.
Über Neuartige Mischkristalle
Authors: Balarew D. 
Published: January 2005

AbstractEs wurde gezeigt, daß die rot his dunkelviolett gefärbten Teilchen von BaSO4 · KMnO4 bzw. BaSO4 · NaMnO4, die GRIMM als neuartige Mischkristalle betrachtet, keine Eigenschaften der anderen bis jetzt als Mischkristalle angenommenen festen Systeme besitzen. Vielmehr sind es Teilchen von BaSO4, in deren innerer Oberfläche (d. h. der freien Oberfläche der kleinsten Kristalle, aus welchen die sichtbaren Teilchen zusammengesetzt sind), das Permanganat als Komponent der wäßrigen Lösung adsorbiert ist.
Über die innere Reibung geschmolzener Metalle und Legierungen. II. Weiteres Über die Meßmethode und über die innere Reibung der BiSn‐Legierungen und der Legierung Cu3Sn
Authors: Sauerwald F. , Töpler K. 
Published: January 2005

AbstractAn der früher beschriebenen Apparatur wurden einige Verbesserungen angebracht und die Möglichkeit der Messungen bis 1000° und darüber gesteigert. Ferner wurde gezeigt, daß auch bei Versuchen mit verschiedener Durchflußgeschwindigkeit die Hagenbach'‐ sche Korrektur eine widerspruchslose Auswertung ermöglicht.Messungen an Sn, Bi und ihren Legierungen gaben keine ausgezeichneten Punkte auf den Konzentrations‐Viscositätsisothermen. Eine Legierung Cu3Sn zeigte eine bemerkenswert hohe innere Reibung.
Über eine besondere Art von Verdrängungsreaktionen bei Komplexverbindungen
Authors: Grünberg A. 
Published: January 2005

AbstractEs werden Reaktionen einer sich in wäßrigen Lösungen verschiedener Aminate abspielenden, freiwillig verlaufenden Äthylendiaminmigration beschrieben und am Beispiele des Systems [Zn 3 En]SO4 + NiSO4 näher studiert.
Über Gemischte elektrische Leitung in einheitlichen festen Verbindungen
Authors: Tubandt C. , Reinhold Hermann 
Published: January 2005

AbstractDie von uns früher angegebene Methode, den Leitungscharakter einer festen Verbindung, elektrolytische, metallische und gemischte Leitung, uner sicherem Ausschluß aller durch sekundäre Erscheinungen veranlaßter Störungen zu bestimmen, wird so modifiziert, daß sie auch bei niedrigen Temperaturen verwendbar ist.
Structure and ideology of shelters for battered women
Authors: Epstein Sara R. , Russell Glenda , Silvern Louise 
Published: January 2005

General ConclusionsIn this study, organizational age predicted the structure of women's shelters more powerfully than did ideological differences among shelters; even interactions between ideology and age were unimportant. Thus the findings appear to support organizational theory (e.g., Katz & Kahn, 1978; Miller, 1978) and to contradict assumptions that ideology can importantly influence structural development (e.g., Meyer, 1982; Schechter, 1982). These conclusions, however, should be qualified by the recognition that only women's shelters were studied. Far greater variation in structural development might be revealed by study of a broader range of organizations with more diverse ideologies.Still in regard to shelters, the demands for systemic change to accommodate development did predominate over the demands associated with variation in shelter ideology. At one level, these results supported organizational theory. At a practical level, the results provided an empirical description of a basis for that organizational phenomenon that is commonly called “selling out.” Consultants' jobs may sometimes require alleviating tendencies among members of a system to blame one another for systemic processes that are, indeed, more productively described in terms of organizational development than in terms of ideological failure.
Neurochemistry—one hundred years, 1875–1975
Authors: Tower Donald B. 
Published: January 2005

AbstractAs part of the meeting marking the centennial of the American Neurological Association, this paper reviewed the development of neurochemistry during the past one hundred years, with special reference to impacts on clinical neurological problems. Most of the progress has occurred in the past quarter of the century. Without attempting an exhaustive survey, illustrative examples are presented for: muscular contraction, synaptic transmission, nerve conduction, cerebral blood flow and metabolism, central excitation and inhibition, immunological and genetic factors, and nutrition, among others. Clearly, neurochemistr has contributed significantly to our understanding of many neurological disorders. In the future even greater convergence may be expected.
Contractures, continuous muscle discharges, and titubation
Authors: Hanson Peggy A. , Martinez Leonardo B. , Cassidy Robert 
Published: January 2005

AbstractA mother and 2 children had abnormally fixed postures of the hands and feet at birth. At adolescence, intermittent attacks of shaking and titubation with dysarthria and, rarely, abnormal hand posturing developed in all 3. Electromyographically, there were continuous muscle discharges inhibited only by curare. Muscle biopsy in the younger child showed a distinct population of small fibers staining intensely with oxidative enzymes and myosin adenosine triphosphatase after acid preincubation. The mother's biopsy specimen contained similar cells, occasionally split or grouped. The electron microscopical findings were unremarkable.It appears likely that a single physiological abnormality underlies the abnormal central and peripheral nervous system discharges. A pool of low‐threshold neurons may account for the symptoms, with the abnormal discharge arising from the unusual muscle fibers seen on biopsy.
Ocular dyskinesias in patients with Parkinson's disease treated with levodopa
Authors: Shimizu Natsue , Cohen Bernard , Bala Stanley P. , Mendoza Marina , Yahr Melvin D. 
Published: January 2005

AbstractAbnormal involuntary eye movements were found in 8 of 27 patients with Parkinson's disease who were receiving levodopa and dopa decarboxylase inhibitors. The dyskinetic eye movements were smooth, slow, “to‐and‐fro” ocular deviations of large amplitude. They were suppressed by visual fixation and were prominent only in darkness or behind closed lids when patients were alert. They generally appeared in conjunction with involuntary body and limb movements but could occur alone. Many of the patients with ocular dyskinesias had prominent “on‐off” responses to levodopa. Ocular dyskinesias were present in 8 of 10 patients with bodily dyskinesias. This suggests that if recording conditions are appropriate, these eye movements will commonly be found in patients with Parkinson's disease who develop abnormal involuntary bodily movements while they are receiving levodopa therapy.
Complications of isotope cisternography
Authors: Levine Mark C. , Jayabalan V. 
Published: January 2005

AbstractIsotope cisternograms were performed on 107 patients over a period of six years, using three radiopharmaceuticals: 131I‐RIHSA, 111In‐DTPA, and 169Yb‐DTPA. Untoward reactions, usually symptomatic aseptic meningitis, developed in 18 patients. Reactions were most frequent with 111In‐DTPA and least common when 169Yb‐DTPA was employed. Despite extensive testing for pyrogens and bacterial contaminants, the cause of these reactions could not be determined.
Prosopagnosia: A clinicopathological study
Authors: Cohn Robert , Neumann Meta A. , Wood Don H. 
Published: January 2005

AbstractTwo cases of prosopagnosia (failure to recognize faces) are presented, together with the autopsy findings. Only 7 other cases of prosopagnosia caused by pathologically verified occlusive vascular lesions have been described. All the patients had significant bilateral lesions of the cerebral hemispheres, at least one being in the medial‐ventral occipital region. In our patients the bilateral lesions were grossly symmetrical in the distribution of the posterior cerebral arteries but with somewhat more extensive involvement on one side. In all reported cases one or both fusiform gyri were destroyed, and there were variably sized lesions in the pericalcarine structures. These findings suggest that the fusiform gyrus functions as a visual association area for the recognition of specific faces.
Progressive multifocal leukoencephalopathy and cryptococcal meningitis with systemic lupus erythematosus and thymoma
Authors: Malas Diana , Weiss Stuart 
Published: January 2005

AbstractA patient with a malignant thymoma developed systemic lupus erythematosus with neurological involvement and multiple infectious complications, including progressive multifocal leukoencephalopathy and cryptococcal meningitis. Data from this patient and studies by others are consistent with the concept that all cases of progressive multifocal leukoencephalopathy are associated with a defect in cellular immunity.
Subacute schlerosing panencephalitis in the middle east: Report of 99 cases
Authors: Haddad Fuad Sami , Risk Winthrop S. , Jabbour J. T. 
Published: January 2005

AbstractAll patients entering with a differential diagnosis of subacute sclerosing panencephalitis (SSPE) at two major Lebanese medical centers since 1956 yielded 99 cases. Significant findings included: an epidemic pattern with 4 cases during 1956–57;95 cases during 1964–75; and, after 1966, 1.7 cases per year per million total population in Lebanon alone. The average age at which patients had measles shifted from 20 months in those who had onset of SSPE before 1971 to 35 months thereafter. Duration of illness was less than three months for 7% of the patients; four to 24 months for 69%; and more than 24 months for 24%. Four percent acieved significant long‐term improvement.
Serotonin metabolism in human epiepsy: The influence of anticonvulsant drugs
Authors: Chadwick D. , Jenner P. , Reynolds E. H. 
Published: January 2005

AbstractCerebrospinal fluid levels of tryptophan, 5‐hydroxyindoleacetic acid (5‐HIAA), and homovanillic acid (HVA) were measured in 26 untreated and 46 treated epileptic patients and 32 neurological controls. Levels of these substances were normal in the untreated epileptic patiens, but elevated CSF tryptophan and a trend toward elevation of 5‐HIAA were found in the treated group. The rise in CSF tryptophan and 5‐HIAA appeared related to the number of anticonvulsants administered and the serum levels of phenobarbital and diphenylhydantoin. Particularly high values were seen in anticonvulsant‐intoxicated patients. There was no significant correlation between CSF levels of tryptophan and 5‐HIAA in control and untreated patients, but a positive correlation was found in the treated group. The slight rise in CSF levels of HVA in treated epileptic patients was not significant, but a positive correlation was found between CSF levels of 5‐HIAA and HVA.
Thymic lymphocytes in myasthenia gravis
Authors: Birnbaum Gary , Tsairis Peter 
Published: January 2005

AbstractLymphocytes from the thymus glands of myasthenic patients and controls were characterized in terms of their percentages of B‐ and T‐cells and their ability to stimulate the proliferation of autologous peripheral blood lymphocytes. Percentages of B‐ and T‐cells were the same in the thymuses of myasthenic and control subjects. Autologous peripheral lymphocyte stimulation by thymocytes was observed in only 1 of 3 myasthenic patients, and this was with a thymus gland containing a thymoma. These results thus differ from those of other investigators.
Abnormalities in growth of skin fibroblasts of patients with Huntington's disease
Authors: Barkley David S. , Hardiwidjaja Steven , Menkes John H. 
Published: January 2005

AbstractCulture characteristics in a variety of media were determined in 18 skin fibroblast cultures from 8 subjects with Huntington's disease (HD) and 20 cultures from 10 control subjects. Skin fibroblasts from HD subjects consistently and reproducibly demonstrated maximal cell densities that were higher than control values. There was no significant difference in growth rates.The relationship of this phenomenon to the HD gene is unknown, as are its specificity and time of appearance in the course of the illness.
Appraisal of the PAM cell effect as a diagnostic test for multiple sclerosis
Authors: Cohn Howard , Oger Jôel , Sabouraud Olivier , Ardouin Maurice 
Published: January 2005

AbstractThe selective reduction of PAM cell yield reported by Carp and associates in the presence of tissue from patients with multiple sclerosis (MS) has been attributed to replication in culture of a viral agent associated with MS (MSAA). We investigated the diagnostic potential of the PAM cell effect in MS and in optic neuritis (ON). Six serum and 7 CSF samples from 7 patients with MS, 3 serum and 3 CSF samples from 4 patients with idiopathic ON, and 4 sera from 4 patients with ON induced by ethambutal toxicity were tested. Blind counting showed no reduction in PAM cell yield in the MS group nor any significant difference between the two ON groups. Disturbing inconsistencies in PAM cell growth rates over time and between control flasks were demonstrated.
Kearns‐Sayre syndrome and hypoparathyroidism
Authors: Pellock J. M. , Behrens M. , Lewis L. , Holub D. , Cartter S. , Rowland L. P. 
Published: January 2005

AbstractA boy had characteristic manifestations of both Kearns‐Sayre syndrome and hypoparathyroidism. Three other known cases of this combination of rare syndromes suggest that the association is not fortuitous. The cause is unknown, but persistent viral infection and autoimmune disorder are suspected.
Effects of acetazolamide on myotonia
Authors: Griggs Robert C. , Moxley Richard T. , Riggs Jack E. , Engel W. King 
Published: January 2005

AbstractMyotonia can occur in the periodic paralyses, particularly the hyperkalemic form. The beneficial response to acetazolamide in hypokalemic and hyperkalemic periodic paralysis has led us to study the effect of acetazolamide in 9 patients with disorders having myotonia as the major problem, 7 with myotonia congenita and 2 with paramyotonia congenita. Patients were studied before acetazolamide administration with glucose and potassium loading tests. All patients had an increase in myotonia with potassium, but no weakness occurred with either test. Acetazolamide treatment decreased myotonia in all patients and in 3 proved the most satisfactory therapy. Side‐effects during acetazolamide therapy included paresthesias in 5 patients and renal calculus in 1. Flaccid weakness occurred in a patient with paramyotonia congenita. Acetazolamide treatment was associated in all patients with partially compensated metabolic acidosis and lowering of serum potassium within the normal range. Kaliuresis was also noted during introduction of therapy. Acetazolamide appears to be an acceptable treatment for occasional patients with myotonia who are unresponsive to or intolerant of other therapies.
Alexia and left homonymous hemianopia in a non‐right‐hander
Authors: Erkulvrawatr Samard 
Published: January 2005

AbstractA non‐right‐handed patient developed alexia without agraphia from a right occipital lobe infarction. An intracarotid amobarbital test showed left hemispheric dominance for speech. The cause of alexia in this patient could not be explained simply by the accepted disconnection hypothesis, which proposes that speech, handedness, and reading functions reside in the same hemisphere. The findings in this patient suggest that his speech function is located on the left, whereas his functions for reading and writing are located in the right hemisphere.
Gilles de la Tourette syndrome: Further studies and thoughts
Authors: Singer Harvey S. , Pepple James M. , Ramage Ann L. , Butler Ian J. 
Published: January 2005

AbstractA possible association between the Gilles de la Tourette and Lesch‐Nyhan syndromes has recently been postulated. Fourteen patients with Tourette syndrome demonstrated no similarity to Lesch‐Nyhan based upon patterns of inheritance, behavioral changes, or alterations of purine metabolism. Despite a strong male predominance, a sex‐linked pattern of inheritance could not be confirmed. Self‐mutilating behavior was found in 4 male patients but was readily differentiated from that characteristic of the Lesch‐Nyhan syndrome. Quantitation of hypoxanthineguanine phosphoribosyltransferase and isoelectric focusing of its isoenzymes produced results that were indistinguishable from those in controls. We speculate that, pathophysiologically, Tourette syndrome represents an imbalance between the central neurotransmitters dopamine and serotonin rather than an alteration in purine metabolism.
Duchenne dystrophy: Focal alterations in the distribution of concanavalin a binding sites at the muscle cell surface
Authors: Bonilla Eduardo , Schotland Donald L. , Wakayama Yoshihiro 
Published: January 2005

AbstractIn 6 patients with Duchenne dystrophy, electron microscopical studies of concanavalin A (Con A) binding sites using the peroxidase labeling technique revealed a population of muscle fibers in which the reaction at the cell surface was irregular and patchy in areas larger than 0.5 μ. In 5 control subjects, such focal alterations were not observed and the reaction appeared continuous and regular. The findings indicate focal abnormalities at the muscle cell surface of Con A receptors in Duchenne dystrophy.
Vertical oculomotor apraxia and memory loss
Authors: Mills Richard P. , Swanson Phillip D. 
Published: January 2005

AbstractA case of vertical oculomotor apraxia with severe memory loss and hypokinetic inertia is described in a 34‐year‐old woman who was taking oral contraceptives. The eye movement disorder was limited to paralysis of voluntary vertical saccades; pursuit movements, reflex eye movement, and horizontal saccades were normal. Random involuntary vertical saccades documented by electronystagmography qualified this as a true apraxia.Similar cases from the literature have in common involvement of both medial thalami, a localization supported in this case by distinctive abnormalities on CAT scan. The clinical course suggested acute infarction, possibly due to embolism, in a territory supplied by the thalamosubthalamic paramedian arteries.
Cerebral hypoperfusion in the sudden infant death syndrome? brainstem gliosis and vasculature
Authors: Takashima S. , Armstrong D. , Becker L. , Bryan C. 
Published: January 2005

AbstractGliosis is increased in the respiratory control area of the brainstem in victims of sudden infant death syndrome (SIDS), as it is in infants who have died of congenital heart disease. In the latter, the lesions appear to result from hypoxia or ischemia, and studies of the brainstem microvasculature of SIDS victims indicated a close relationship between the gliosis and adjacent vasculature. It is postulated that cerebral hypoperfusion may play a role in SIDS.
Deanol acetamidobenzoate inhibits the blood‐brain barrier transport of choline
Authors: Millington William R. , McCall Anthony L. , Wurtman Richard J. 
Published: January 2005

AbstractCompetition by deanol (dimethylaminoethanol) with choline for uptake from the bloodstream into the brain was demonstrated by simultaneous intracarotid administration of carbon 14‐labeled choline with deanol (plus tritiated water and indium 113m, to calculate a brain uptake index) and by measuring the brain uptake of 14C‐labeled choline mixed with sera from rats pretreated with deanol (300 or 500 mg/kg 8 or 30 minutes earlier). The inhibition constant for inhibition of choline uptake by deanol (159 μM) was actually lower than the Michaelis constant for choline itself (442 μM); hence, the affinity of the carrier mechanism for deanol is at least as great as it is for choline. Deanol administration also elevated blood choline levels; thus, the effect of the drug on brain choline (and acetylcholine) levels is the result of the increase it produces in blood choline and the suppression it causes in choline uptake. These findings may explain discrepant results from laboratories seeking increases in brain acetylcholine or clinical improvement in patients with tardive dyskinesia after deanol treatment.
Saccadic system plasticity in humans
Authors: Abel L. A. , Schmidt D. , Dell'Osso L. F. , Daroff R. B. 
Published: January 2005

AbstractA subject with a medial rectus paresis secondary to a partial third nerve palsy was forced to use the affected eye for six days while the good eye was constantly patched. Saccadic eye movements were carefully measured each day; the gain increased, with a time constant of 0.85 day. The patch was then switched to the paretic eye and the gain decreased, with a time constant of 1.54 days. This demonstrated central nervous system plasticity of the pulse and step of neural activity responsible for the generation of saccades in the adult human. In addition to gain changes, postsaccadic drift velocity and saccadic velocity/amplitude relationship alterations during the patching are reported. A major conclusion that can be drawn from analysis of these data is that the gain changing is accomplished by pulse width changes rather than pulse height (firing frequency), which was not markedly altered.
Neurological manifestations of fabry disease in female carriers
Authors: Bird Thomas D. , Lagunoff David 
Published: January 2005

AbstractA family is described in which a 33‐year‐old man has classic X‐linked recessive Fabry disease. His 2 sisters were discovered to be heterozygous carriers of the Fabry gene and to have both episodic and permannent neurological deficits including vertigo, tinnitus, long tract motor signs, and bladder incontinence. The most concise explanation for these findings is that the sisters manifest central nervous system complications of the Fabry carrier state. This family provides additional evidence that female carriers of rare X‐linked recessive disorders may exhibit serious consequences of the disease, presumably related to tissue variability in expression of mutant enzyme activity.