7,831 research outputs found
R.H. Moreno-Durán: fantasía y verdad. Valoración múltiple
No full textPocos escritores colombianos han explorado diversos géneros literarios con resultados satisfactorios; Moreno-Durán destaca en el panorama artístico de Colombia al cosechar logros en una amplia producción creativa que incluye novelas, cuentos, ensayos y en los últimos tiempos el teatro. / Contenido. Preliminares; Capítulo 1 - R.H. Moreno-Durán: a fondo; Capítulo 2 - R.H. Moreno-Durán: en breve; Anexos
Company C, High School Cadets, Captain R.H. Coughlin - 12
No full textDress parade of Company C, high school cadets, performs on the Ellipse. The company is being led by Captain R.H. Coughlin.Number in title was assigned by Willard Ros
Plan de marketing para R.H. Seguridad
No full textTesis (Ingeniero en Administración de Empresas)R.H. Seguridad es una empresa fundada en Concepción y con oficinas también en
Santiago. Sus dos socios aportan una gran experiencia en materias de seguridad y de
administración de personal. Esta empresa ofrece servicios principalmente a empresas y
organizaciones.
La innovación tecnológica está presente en R.H. Seguridad, permitiendo a sus clientes,
por ejemplo, no sólo el control a distancia de la seguridad, sino también, la operación de su
empresa por su propia red o Internet.
Es una empresa con una marcada orientación al cliente, asegurando así buenos
resultados reflejados en el grado de satisfacción de sus clientes.
El plan de marketing que se presentará a continuación, tiene como objetivo final lograr
solución al problema que presenta esta empresa, es decir, aumentar la participación de
mercado con la que cuenta actualmente RH Seguridad en Santiago
Microstructure and Dynamic Mechanical Behavior of Thermomechanically Rolled 3Mn–Al and 5Mn–Al Sheet Steels
No full textThe comparison of the dynamic mechanical behavior and microstructure of two medium manganese sheet steels (3Mn–Al and 5Mn–Al) alloyed with aluminum is aimed. Mechanical properties under dynamic tensile loads are determined by means of rotary hammer dynamic tests at strain rates of 250 and 1000 s−1 and analyzed together with the results of static tensile test. It is found that the results are significantly affected by the variations in Mn content in the range from 3 to 5 wt%. In both steels, the tensile strength increases with increasing strain rate, but the variation in the strain rate range has a moderate effect on mechanical behavior. The highest ultimate tensile strength of 1475 MPa is measured in the 5Mn–Al steel, whereas the 3Mn–Al steel is characterized by better total elongation due to a larger fraction of retained austenite and more pronounced transformation-induced plasticity effect. The results show that the mechanical properties of 3Mn steel are more strain rate sensitive than those of 5Mn steel. The microstructural features are characterized qualitatively and quantitatively by X-ray diffraction, scanning electron microscopy, and electron back-scattered diffraction techniques.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Team Maria Santofimia Navarr
Peran R.H. Achmad Djoewaeni sebagai penghulu di Sukabumi Tahun 1912-1940
No full textPenghulu pada zaman kolonial memiliki peranan yang penting dalam sosial keagamaan. Penelitian ini membahas peran R.H. Achmad Djoewaeni sebagai kepala penghulu di Sukabumi. Dalam menjalankan tugasnya sebagai kepala penghulu ternyata tidak sedikit permasalahan yang beliau hadapi, seperti perbedaan pendapat dengan tokoh agama yang lain karena penghulu dianggap sebagai perpanjangan tangan Belanda
Penelitian ini bertujuan untuk mengetahui peran penghulu di masa kolonial dan riwayat hidup dari RH. Achmad Djoewaeni serta peran R.H. Achmad Djoewaeni sebagai kepala penghulu di sukabumi tahun 1912-1940.
Adapun metode yang dipergunakan dalam penelitian ini adalah metode penelitian sejarah yang dilakukan melalui empat tahapan, yaitu heuristic, kritik, interpretasi, dan historiografi.
Berdasarkan penelitian disimpulkan bahwa: pertama, R.H. Achmad Djoewaeni menjabat sebagai penghulu sejak 11 November 1912 sampai wafatnya tahun 1940. Kedua, peran R.H. Achmad Djoewaeni sebagai kepala penghulu di Sukabumi ialah, dalam bidang pendidikan mendirikan sekolah Islam formal pertama di Sukabumi, dalam bidang pembangunan agama menertibakan administrasi Masjid Kauman, dan dalam bidang pemikiran mengenai zakat, slametan serta transliterasi Al-Qur’an ke dalam huruf latin
The SF-36: a simple, effective measure of mobility disability for epidemiological studies
No full textBackgroundMobility disability is a major problem in older people. Numerous scales exist for the measurement of disability but often these do not permit comparisons between study groups. The physical functioning (PF) domain of the established and widely used Short Form-36 (SF-36) questionnaire asks about limitations on ten mobility activities.ObjectivesTo describe prevalence of mobility disability in an elderly population, investigate the validity of the SF-36 PF score as a measure of mobility disability, and to establish age and sex specific norms for the PF score.MethodsWe explored relationships between the SF-36 PF score and objectively measured physical performance variables among 349 men and 280 women, 59-72 years of age, who participated in the Hertfordshire Cohort Study (HCS). Normative data were derived from the Health Survey for England (HSE) 1996.Results32% of men and 46% of women had at least some limitation in PF scale items. Poor SF-36 PF scores (lowest fifth of the gender-specific distribution) were related to: lower grip strength; longer timed-up-and-go, 3m walk, and chair rises test times in men and women; and lower quadriceps peak torque in women but not men. HSE normative data showed that median PF scores declined with increasing age in men and women.ConclusionOur results are consistent with the SF-36 PF score being a valid measure of mobility disability in epidemiological studies. This approach might be a first step towards enabling simple comparisons of prevalence of mobility disability between different studies of older people. The SF-36 PF score could usefully complement existing detailed schemes for classification of disability and it now requires validation against them
Refolding of protein kinases
No full textThe vast increase in the number of protein structures identified since the first high resolution protein structure was determined has shown that there are relatively few protein folds. The study of the folding of proteins has also expanded significantly since its inception. The contact-order of residues in the native structure has been implicated as important in folding. This has raised the question of whether the common folds observed in protein structures fold via common mechanisms. The protein kinase domain is a large, pharmaceutically important and conserved protein fold, of which many examples fail to fold correctly when overexpressed as recombinant proteins in Escherichia coli. The kinase domain forms an excellent area in which to study the folding of a large conserved domain with varying sequence. To study the refolding of the kinase fold a refolding screen was created, using p38α as a model protein kinase. The results of this screen were compared to the results of refolding a further four protein kinases, AKT2, KIS, PhK and TTK to determine commonalities in the folding of protein kinases. The refolding of the five protein kinases was also examined using a fractional factorial screen which examined combinations of refolding additives. In the screening of the refolding of protein kinases no factors were idenified which were common to the refolding of all five of the tested protein kinases. The equilibrium folding of a single protein kinase, TTK, was also studied. The folding of TTK was determined to proceed via different pathways on folding and unfolding, with a co-operative unfolding pathway through a molten-globule intermediate, and a non-cooperative refolding pathway via an intermediate with different secondary structure content to the unfolding intermediate. The difference between the folding properties of protein kinases determined in the screen and through the analysis of the equilibrium folding of TTK suggest that there may not be a common protein kinase folding mechanism
Temperature-Dependent Microstructural Evolution of Al-Rich Medium-Mn Steel During Intercritical Annealing
No full textMedium-Mn automotive sheet steels require optimized heat-treatment processes to obtain benefits caused by strain-induced martensitic transformation of retained austenite (RA) during sheet metal forming or crash events. The intercritical annealing (IA) approach at different temperatures in a range of 640 °C to 800 °C is proposed in the study for a 5Mn hot-rolled medium-Mn sheet steel. The experiments were performed in terms of dilatometry. The analysis of the cooling curves allowed development of a new method for calculating the high-temperature phase equilibrium. The calculations were validated by modeling with JMatPro and experimentally verified by X-ray diffraction (XRD). The microstructure evolution was characterized using light optical microscopy and scanning electron microscopy (SEM), including electron backscatter diffraction (EBSD). The quantitative determination of the fraction, morphology, chemical composition, and stability of the RA was done. Mechanical properties were determined by hardness measurements. The research showed a substantial influence of the IA temperature on the RA fraction and chemical stability and properties of medium-Mn Al-alloyed steel. At temperatures of 680 °C and 700 °C, the largest fraction of over 35 pct of stable RA was obtained, which does not transform to martensite during cooling.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Team Kevin Ross
Improving science supervision in the Kuwaiti school system
No full textSIGLEAvailable from British Library Document Supply Centre- DSC:DX93008 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
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