The Use of 15N NMR for the Understanding of Nitrogen Physisorption.

1994

Abstract Nitrogen adsorption at liquid nitrogen temperature, 77K, is universally employed to determine pore dimensions. The nature of nitrogen physisorbed within the micropores of ZSM-5 zeolite was studied by in situ15N NMR as it depends on the partial pressure of the nitrogen and the temperature above and below 77K. An increase in the volume of adsorption of nitrogen at 77K occurs at a relative pressure of ~0.18 for this zeolite. The nature of the nitrogen was studied below and above this increase in nitrogen adsorption. We find that two states (phases) of nitrogen are evident. We conclude that two phases can be present but that a solid phase of nitrogen is not evident even as the temperat…

Efficient algorithm for learning simple regular expressions from noisy examples

1994

We present an efficient algorithm for finding approximate repetitions in a given sequence of characters. First, we define a class of simple regular expressions which are of star-height one and do not contain union operations, and a stochastic mutation process of a given length over a string of characters. Then, assuming that a given string of characters is obtained corrupted by the defined mutation process from some long enough word generated by a simple regular expression, we try to restore the expression. We prove that to within some reasonable accuracy it is always possible if the length of the mutation process is bounded comparing to the length of the example. We provide an algorithm by…

Expression of L- and M2-pyruvate kinases in proliferating oval cells and cholangiocellular lesions developing in the livers of rats fed a methyl-defi…

1994

Male outbred Sprague-Dawley rats were fed a choline-deficient diet containing 0.1% w/w DL-ethionine (CDE) for up to 22 weeks. The expression of the pyruvate kinase isoenzymes L (L-PK) and M2 (M2-PK) was immunohistochemically analyzed in liver slices from rats killed 4, 10, 14 and 22 weeks after starting the treatment. M2-PK was detected in bile duct epithelial cells of untreated rats and in proliferating oval cells, cholangiofibroses and cholangiofibromas of CDE-fed animals. Thus, M2-PK can be viewed as a positive marker of the bile duct epithelial/oval cell compartment. L-PK, a parenchymal cell-specific protein in untreated rat liver, was not present in proliferating oval cells, but was co…

Sesja naukowa pt. Z życia i twórczości Stanisława Wasylewskiego

1994

ENERGY REQUIREMENTS BOTH FOR OLIVE OIL AND OLIVE HUSK OIL EXTRACTION

1994

GOTHIKO TETRADIO: Una traduzione da M. Luzi

1994

Sulla versione greca da Luzi ad opera di M. Dalmati On the Greek version by Luzi by M. Dalmati

Entre dos reinos, una patria rebelde: Fidalgos portugueses en la monarquía hispánica después de 1640

1994

Equal-Status Relationships in the Gym

1994

Abstract Strategies for developing equal-status relationships through reciprocal modeling, tutoring. and caring may guide teachers as they help children with disabilities make the transition from special education programs back to regular classes.

SO(10) grand unification model for degenerate neutrino masses

1994

This version corrects the first one in eq.3.4 and table 1 where there was a bar missing in the 126 representation. All other equations and results are unchanged and correct. However, the criticism we had made in the earlier version to the work of Caldwell and Mohapatra was not correct and has been removed from the "note added" where it appeared. Moreover one new reference has been added to ref.13.

Una inscripción funeraria procedente de Olocau (Valencia)

1994

Los métodos de cálculo mental en el contexto educativo : un análisis en la formación de profesores

1994

Thyroid papillary carcinoma infarction after fine needle aspiration

1994

Complications following fine needle aspiration (FNA) are very infrequent and generally resolve spontaneously without treatment. The appearance of necrosis or infarction after FNA of the thyroid gland is an exceptional finding. An 83-year-old woman with a thyroid nodule was subjected to diagnostic FNA using a G23 needle. The patient noted a decrease in nodule size after FNA. A total thyroidectomy was performed 36 days after FNA. The cytological diagnosis was papillary carcinoma. Histology revealed massive coagulation necrosis affecting 80% of the tumor mass; the cytological diagnosis was confirmed. Iron pigment deposits were observed in the vicinity of the necrotic areas together with inters…

Nonlinear Potential Theory and PDEs

1994

We consider equations like — div(∣∇u∣ p-2∇u) = µ, where µ is a nonnegative Radon measure and 1 < p < ∞. Results that relate the solution u and the measure µ are reviewed. A link between potential estimates and the boundary regularity of the Dirichlet problem is established.

Intratumoral PO2 Histography as Predictive Assay in Advanced Cancer of the Uterine Cervix

1994

Experimental evidence suggests that the hypoxic fraction in a solid tumor may increase its malignant potential and reduce its sensitivity towards nonsurgical treatment modalities such as standard irradiation and certain anticancer agents1–5. However, the clinical importance of tumor hypoxia remains uncertain since valid methods for the routine measurement of intratumoral O2-tensions in patients have so far been lacking.

Compared effects of synthetic and natural bile acid surfactant on xenobiotic absorption. II. Studies with sodium glycocholate to confirm a hypothesis

1994

Abstract The effects of sodium glycocholate (SGC) on the intestinal absorption of drug-related xeriobiotics are investigated, on the basis of previously established absorption/partition relationships. Six phenylalkylcarboxylic acids, closely related to nonsteroid anti-inflammatory drugs in structure and constituting a true homologous series, were used as test compounds through an in situ rat gut technique, using the whole colon as nonspecialized absorption membrane model. Whereas the synthetic surfactants (i.e., polysorbates and laurylsulphates) at the critical micelle concentration have been shown to disrupt the aqueous boundary layer adjacent to the membrane, SGC does not; in contrast, it…

Countertransference in Factitious Disorder

1994

In the treatment of patients with factitious disorder it is important to realize that at various levels of their experience these patients are more intimate with death than with life. This requires a particular awareness of resistance mechanisms to countertransference as well as of the importance of clinical procedures, in particular with regard to superego analysis. A requirement for establishing a psychotherapeutic alliance with patients suffering from factitious disorder is a high degree of 'therapeutic eros', hope and trust in one's own capabilities. The emphasis on a 'biophile attitude' does, however, involve the danger that the destructive potential, fantasies of death or killing, but…

Pogranicze jako problem kultury : materiały konferencji naukowej, Opole 13-14.12.1993 r

1994

Una propuesta curricular para la ESO: el proyecto "a través de cuatro años"

1994

Isolation and identification of (3z,6z,8e)-3,6,8-dodecatrien-1-ol Reticulitermes santonensis Feytaud (Isoptera, Rhinotermitidae): Roles in worker tra…

1994

International audience

Plant-growth-regulatingN-(phosphonoacetyl)amines

1994

A series of N‐(phosphonacetyl)amine derivatives were synthesized and screened for plant‐growth regulating activity on Lepidium sativum L. and Cucumis sativus L. Aromatic N‐(phosphonoacetyl)amines. which may be considered as possible analogues of N‐acylaniline herbicides obtained by replacement of their acyl group by the phosphonacetyl moiety, exhibited significant or moderate herbicidal activity. In contrast, N‐(phosphonoacetyl)amino acids and N‐(phosphonoacetyl)aminophosphonic acids promoted the growth of L. sativum and C. sativus roots.

Elementy kresowe w języku "Ziemi księżycowej" i "Atlantydy" Andrzeja Chciuka

1994

Pere Joan Nunyes epigrafista (el primer testimoni de tres inscripcions de Xèrica)

1994

En aquest treball es revisen tres inscripcions de Xèrica (Alt Palància) de les quals l'humanista Pere Joan Nunyes és el primer testimoni. In this paper are reviewed three inscriptions from Jérica (Alto Palancia) of which the humanist Pedro Juan Nuñez offers the first testimony.

La postdemocracia en siete paradojas

1994

Salarios de eficiencia y desempleo : evidencia empírica para el sector industrial

1994

Erfolgreiche Xenotransplantation von mikroenkapsuliertem Nebenschilddrüsengewebe: Nachweis der Langzeitfunktion ohne Immunsuppression im Tierversuch

1994

Ein permanenter Hypoparathyreoidismus liegt vor, wenn die Calciumkonzentration im Serum uber einen Zeitraum von 6 Monaten hinaus unter 2,2 mmol/1 erniedrigt ist. Haufigste Ursache ist die iatrogene irreversible Schadigung oder Exstirpation der Nebenschilddrusen im Rahmen von Schilddrusenoperationen. Die Angaben uber die Inzi-denz persistierender Hypocalcamie schwanken nach subtotaler Schilddrusenresektion zwischen 0,2 und 1,9% und reichen nach Thyreoidektomie von 0,4–13,8% [1, 2, 3, 4]. Persistierender Hypoparathyreoidismus fuhrt zunachst zu gesteigerter neuromuskularer Erregbarkeit, die sich vor allem in Form von rezidivierenden Tetanien, Konvulsionen und Parasthesien ausert. Die organisch…

LA LAVORAZIONE DEGLI AGRUMI: CONSUMI DI ENERGIA E CAPACITÀ DI LAVORO

1994

Pensamos, construimos, aprendemos

1994

Cuando escuchamos los razonamientos que los niños van haciendo en las diferentes actividades que llevan a cabo, estamos fomentando la argumentación, estamos favoreciendo la reflexión. El papel del maestro es establecer un clima apropiado de aprendizaje: generando problemas, ayudando a definir los que los propios alumnos puedan identificar, guiándoles en la búsqueda de estrategias animándoles a proseguir en sus averiguaciones, propiciando el intercambio entre los niños y evaluando el propio proceso de resolución de forma colectiva. When we hear the arguments that children are doing in the various activities carried out, we are encouraging the argument, we are encouraging reflection. The teac…

Molecular Magnetic Materials from Polyoxometalates

1994

The significance of polyoxometalates in the field of molecular magnetism is discussed. We show that this kind of inorganic complexes provides remarkable examples for the study of the exchange interactions in clusters. On the other hand, we examine the possibility of using these metal oxide anions as magnetic components of molecular materials containing organic tetrathiafulvalenes as electron donor molecules.

Flexible Laser Tracing Systems for Defining Thin Film Hybrid Geometries

1994

A recent programme of technical collaboration between Alelco, DIE of Palermo and CRES of Monreale has led to the development and operative confirmation of a technique for delineating conductive microgeometries on various types of Substrates. This technique, using a flexible System of laser microlithography on planar (2-D) or three-dimensional (3-D) surfaces, has led to the development of several types of thin film components for use at both low and high frequencies. © 1994, MCB UP Limited

Standard Model CP-violation and Baryon Asymmetry. Part 2: Finite temperature

1994

We consider the scattering of quasi-particles off the boundary created during a first order electroweak phase transition. Spatial coherence is lost due to the quasi-quark damping rate, and we show that reflection on the boundary is suppressed, even at tree-level. Simply on CP considerations, we argue against electroweak baryogenesis in the Standard Model via the charge transport mechanism. A CP asymmetry is produced in the reflection properties of quarks and antiquarks hitting the phase boundary. An effect is present at order α2W in rate and a regular GIM behaviour is found, which can be expressed in terms of two unitarity triangles. A crucial role is played by the damping rate of quasi-par…

Gitanos en la gobernización y ciudad de San Felipe: censos de población. 1783-1785

1994

Sugerencias para un tratamiento globalizado de la atmósfera en educación primaria

1994

Terlipressin or vasopressin plus transdermal nitroglycerin in a treatment strategy for digestive bleeding in cirrhosis

1994

Between 1988 and 1990 an unblinded, randomized trial of terlipressin or vasopressin plus transdermal nitroglycerin, as part of a treatment strategy including emergency sclerotherapy for actively bleeding varices, was conducted during 165 admissions in 137 patients with cirrhosis and upper digestive bleeding. Eighty-four patient admissions were assigned to terlipressin (2 mg every 6 h) and 81 to vasopressin (0.4 to 0.8 unit per min) plus transdermal nitroglycerin (20 to 80 mg). The two groups were comparable for relevant clinical data, but there were slightly more patients with hepatocellular carcinoma or terminal conditions in the terlipressin group. After the 24-h study period, failure to …

Use of the Apparent Content Curves for the spectrophotometric identification of substances: identification of amphetamines

1994

The possibility of identification of substances which have similar spectral behaviour by means of Apparent Content Curves has been studied. This study is carried out with absorption, excitation and emission spectra of several amphetamines of widespread pharmaceutical use. Results obtained show that amphetamine, phenylpropanolamine, pseudoephedrine, phenylephrine, epinephrine, dopamine and methoxyamphetamine can be identified with a probability of >95%.

Effects of Strength Training on Neuromuscular Function and Disease Activity in Patients with Recent-onset Inflammatory Arthritis

1994

Thirty-nine consecutive patients with recent-onset rheumatoid or psoriatic arthritis were randomly allotted for six months period either to the experimental progressive dynamic strength training group (EG, 10 women and 11 men; 41 +/- 10 yrs), or to the control group (CG, 10 women and 8 men; 45 +/- 11 yrs) who just maintained their habitual physical activities. All patients received antirheumatic medication throughout the experimental period. During the study period significant improvements took place in the EG in maximal muscle strength of all examined muscle groups (31.5% for the knee extensors, p0.001; 14.8% and 10.7% for the trunk flexors and extensors, p0.01; 27.8% and 20.4% for grip st…

Personality disorders among the relatives of schizophrenia patients.

1994

In light of current linkage studies in schizophrenia, research on the "schizophrenia spectrum" deserves increased attention for an exact determination of the affected phenotype: Those disorders that have a much higher prevalence among biological relatives of schizophrenia patients are supposed to share common etiological factors with "core" schizophrenia. However, there is controversy over which of the DSM-III-R personality disorders should be included in the spectrum. In a controlled family study of inpatients with a DSM-III-R diagnosis of schizophrenia (n = 101), schizophreniform and schizoaffective disorders (n = 69), and unipolar major depression (n = 160), familial rates of personality…