747 research outputs found
Uniform data system standardizes technical computations and the purchasing of commercially important gases
Integrated tables of pressure, volume, and temperature for the saturated liquid, from the triple point to the critical point of the gases, have been developed. Tables include definition of saturated liquid curve. Values are presented in metric and practical units. Advantages of the new tables are discussed
Effektivität des Integrierten Psychologischen Therapieprogramms für schizophren Erkrankte: Eine Metaanalyse über 28 unabhängige Studien
Zusammenfassung: Während der letzten 24Jahre führten Arbeitsgruppen aus 8Ländern 28 unabhängige Evaluationsstudien zum Integrierten Psychologischen Therapieprogramm (IPT) mit insgesamt 1329 schizophren Erkrankten durch. Zur Überprüfung der Wirksamkeit des IPT unter verschiedenen Versorgungsbedingungen wurden die inferenzstatistischen Ergebnisse sämtlicher Studien in Effektstärken transformiert. Die IPT-Gruppen zeigen einen signifikant höheren mittleren Therapieeffekt gegenüber den Kontrollgruppen (Plazebo-Attention-Bedingungen; Standardbehandlung). Die Überlegenheit der IPT-Gruppen nimmt im Verlauf einer durchschnittlichen Katamnesedauer von 8,1 Monaten weiter zu. Vergleichbar hohe Effekte lassen sich für die IPT-Gruppen sowohl in verschiedenen Funktionsbereichen (kognitive Fähigkeiten, Sozialverhalten, Psychopathologie) als auch mit unterschiedlichen Erhebungsformaten (psychologische Tests, standardisierte Selbst- und Fremdratings) nachweisen. Die Ergebnisse belegen weiter, dass Patienten unabhängig von Krankheits-, Rehabilitationsstatus und Therapiesetting vom IPT profitieren. Alle Ergebnisse sind mittels einer Selektion von qualitativ hochstehenden Studien validiert. Zusammenfassend unterstützen damit die Ergebnisse die Evidenz des IPT als einen "empirisch validierten Treatmentansatz" im Sinne der APA-Richtlinie
Isochoric thermal conductivity of solid nitrogen
The isochoric thermal conductivity of solid nitrogen has been investigated on
four samples of different densities in the temperature interval from 20 K to
the onset of melting. In alfa-N2 the isochoric thermal conductivity exhibits a
dependence weaker than 1/T; in beta-N2 it increases slightly with temperature.
The experimental results are discussed within a model in which the heat is
transported by low-frequency phonons or by "diffusive" modes above the mobility
boundary. The growth of the thermal conductivity in beta-N2 is attributed to
the decreasing "rotational" component of the total thermal resistance, which
occurs as the rotational correlations between the neighboring molecules become
weaker.Comment: Postscript 12 pages, 3 figures, 1 table. To be published in 200
[Effectiveness of Integrated Psychological Therapy for schizophrenia patients : A meta-analysis including 28 independent studies.]
Over the past 24 years, research groups in eight different countries have conducted 28 independent evaluation studies on Integrated Psychological Therapy (IPT) including 1,329 schizophrenia patients. The present study examines the effectiveness of IPT under different treatment conditions by means of a meta-analytic review. The most salient results indicate favourable mean effect sizes for IPT in comparison to control groups (placebo-attention conditions, standard care). Moreover, the superiority of IPT continues to increase during an average catamnestic phase of 8.1 months. The method obtains similarly favourable effects in different functional areas (neurocognition, social behaviour, psychopathology) and different assessment formats (expert ratings, self-reports, psychological tests). The comparison of different settings of IPT and control groups shows the superiority of IPT in any given therapy or site condition. The analysis of subsamples of inpatients, outpatients, and patients in varying rehabilitation phases reveals similarly favourable effects. Comparing only high-quality studies yields comparable results. In summary, the present meta-analysis corroborates evidence that IPT is an 'empirically validated treatment' according to American Psychiatric Association guidelines
EVALUATION OF DENTAL HEALTH EDUCATION IN A SCHOOL DENTAL CARE PROGRAM
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/65546/1/j.1752-7325.1978.tb03715.x.pd
Fermions and Disorder in Ising and Related Models in Two Dimensions
The aspects of phase transitions in the two-dimensional Ising models modified
by quenched and annealed site disorder are discussed in the framework of
fermionic approach based on the reformulation of the problem in terms of
integrals with anticommuting Grassmann variables.Comment: 11 pages, 1 table, no figures. The discussion is merely based on a
talk given at the International Bogoliubov Conference on Problems of
Theoretical and Mathematical Physics, MIRAS--JINR, Moscow--Dubna, Russia,
August 21--27, 200
Transport Properties of the One Dimensional Ferromagnetic Kondo Lattice Model : A Qualitative Approach to Oxide Manganites
The transport properties of the ferromagnetic Kondo lattice model in one
dimension are studied via bosonization methods. The antiferromagnetic
fluctuations, which normally appear because of the RKKY interactions, are
explicitly taken into account as a direct exchange between the ``core'' spins.
It is shown that in the paramagnetic regime with the local antiferromagnetic
fluctuations, the resistivity decays exponentially as the temperature increases
while in the ferromagnetic regime the system is an almost perfect conductor. %A
non-perturbative description of localized spin polarons %in the paramagnetic
region is obtained.
The effect of a weak applied field is discussed to be reduced to the case of
the ferromagnetic state leading to band splitting. The qualitative relevance of
the results for the problem of the Oxide Manganites is emphasized.Comment: 4 pages, REVTe
Scalar-field Pressure in Induced Gravity with Higgs Potential and Dark Matter
A model of induced gravity with a Higgs potential is investigated in detail
in view of the pressure components related to the scalar-field excitations. The
physical consequences emerging as an artifact due to the presence of these
pressure terms are analysed in terms of the constraints parting from energy
density, solar-relativistic effects and galactic dynamics along with the dark
matter halos.Comment: 26 pages, 3 figures, Minor revision, Published in JHE
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