Miracle-dz/UniFAR-FTUs huggingface dataset:
Energy Distribution in Fast-Neutron Radiolysis of Water

2+ 3+ The G-value for the oxidation of Fe ions to Fe ions induced in the heavy water Fricke dosimeter by 14.6 Mev. neutrons was experimentally determined. The G (Fe 3+ ) -value was found to be equal to 11.1+1.0 ions per 100 3+ ev. This was based on a published result of G(Fe ) -value of 10.5 for the fastneutron induced oxidation in light water. The G-value was computed from the measured ratio of absorbances, at a wavelength of 305 my, of heavy water and light water solutions exposed to the same time-integrated neutron flux. The G-value for heavy water is based on a calculated value of the ratio of the first collision dose rates in light water and heavy water, and also on 3+ the published value of the ratio of the extinction coefficients of Fe ions in heavy water and light water solutions. The n-d elastic scattering was analyzed from the published data of differential cross-sections. The insufficient data on the differential cross-sections for the (n,2n) reaction necessitated certain approximations in its analysis. The calculated ratio of first collision dose rates in light water and heavy 3+ water was 1.165. The ratio of the extinction coefficients of Fe ions in heavy water and light water was taken to be 1.068. The fast-neutron radiolysis experiment was preceded by the two experiments: 3+ a) determination of the extinction coefficients for Fe ions in water (containing 0.8N H-SO,) and b) determination of the G(Fe T ) -value of heavy water (containing 0.8N H-SO.) for Co-60 gamma radiolysis. The value of the extinction coefficient for ferric ions was found to be equal to 2118 liters per mole-cm. at 25°C. The G(Fe ) -value was found to be equal to 16.8 for Co-60 gamma radiolysis of heavy water.
VEGETATION SUCCESSION OF LOGGED FOREST IN THE WESTERN ALLUVIAL PLAINS OF VENEZUELA

2012. Vegetation succession of logged forest in the western alluvial plains of Venezuela. Nearly all forests in the Venezuelan alluvial plains are converted to agricultural lands. However, in forest reserves, logging is a selective extraction activity that disturbs part of the ecosystem. This work was aimed at studying floristic composition changes over longer periods of time in a forest with different logging intensities. We measured 11 plots distributed in random block design of 1 ha each. The importance value index (IVI) was calculated for all species and was used in a canonical correspondence analysis to evaluate species behaviour. Cecropia peltata and Inga sp. dominated the first successional stage attaining a maximum IVI close to 12 years but showed clear decline thereafter. The next successional phase was dominated by late secondary species such as Triplaris americana and Guazuma ulmifolia. Climax species such as Pouteria reticulata and Pachira quinata showed drastic reduction in importance and very slow recovery. This study was based on 16-year-observation period, a rare work which could make use of such long period of direct observation. Our results could be used to guide ecological restoration in deforested areas. Forest management strategies should be redrawn to make it a sustainable option.
EFFECT OF INSTRUMENT ATTACHMENT AND OTHER FACTORS ON FORAGING TRIP DURATION AND NESTING SUCCESS OF ADÉLIE PENGUINS

Abstract We compared foraging-trip duration of Adélie Penguins (Pygoscelis adeliae) carrying various combinations of radio-telemetry transmitters, implanted, passively interrogated transponder (PIT) tags, and time-depth recorders at two widely separated colonies of different size on Ross Island, Antarctica, during three austral summers. Trip duration was measured by electronic devices rather than human observation. Instrumentation had no significant effect on foraging trip duration. Most of the variation in foraging trip duration was attributed to individual and year. Males' trips were significantly shorter than females' in a subset of known-sex birds. No effect was evident in nesting success even for birds that wore instruments for >20 days. We recommend use of small, hydrodynamically designed and placed instruments to researchers who wish to collect data unaffected by instrument attachment. Efectos de la Sujeción de Instrumentos y Otros Factores en la Duración de las Salidas de Forrajeo y el Éxito Reproductivo en Pygoscelis adeliae Resumen. Se comparó la duración de las salidas de búsqueda de alimento de Pygoscelis adeliae a los que se les colocaron distintas combinaciones de radiotransmisores, emisores implantados de interrogación pasiva y medidores de tiempo y profundidad de buceo. El estudio fue realizado durante tres veranos australes en dos colonias ampliamente separadas de diferente tamaño en Ross Island, Antártica. La duración de las salidas fue medida por instrumentos electrónicos en lugar de observaciones humanas. Los instrumentos no tuvieron un efecto significativo en la duración de las salidas de búsqueda de alimento. La mayor parte de la variación en la duración de las salidas fue atribuida a individuos y años. Las salidas de los machos fueron significativamente más cortas que las de las hembras en una sub-muestra de aves previamente sexadas. No se detectaron efectos evidentes en éxito de nidificación incluso en individuos que llevaron instrumentos por más de 20 días. Recomendamos el uso de instrumentos pequeños diseñados y colocados hidrodinámicamente a fin de no influenciar los datos colectados.
Numerical Prediction of an Antarctic Severe Wind Event with the Weather Research and Forecasting (WRF) Model

Abstract This study initiates the application of the maturing Weather Research and Forecasting (WRF) model to the polar regions in the context of the real-time Antarctic Mesoscale Prediction System (AMPS). The behavior of the Advanced Research WRF (ARW) in a high-latitude setting and its ability to capture a significant Antarctic weather event are investigated. Also, in a suite of sensitivity tests, the impacts of the assimilation of Moderate Resolution Imaging Spectroradiometer (MODIS) atmospheric motion vectors on ARW Antarctic forecasts are explored. The simulation results are analyzed and the statistical significance of error differences is assessed. It is found that with the proper consideration of MODIS data the ARW can accurately simulate a major Antarctic event, the May 2004 McMurdo windstorm. The ARW simulations illuminate an episode of high-momentum flow responding to the complex orography of the vital Ross Island region. While the model captures the synoptic setting and basic trajectory of the .
X-ray facility for the ground calibration of the X-ray monitor JEM-X on board INTEGRAL

We describe the X-ray facility developed for the calibration of the X-ray monitor JEM-X on board the INTEGRAL satellite. The apparatus allowed the scanning of the detector geometric area with a pencil beam of desired energy over the major part of the passband of the instrument. The monochromatic radiation is obtained with the use of a double crystal monochromator at fixed exit. We discuss the facility performance.
Caution on causality analysis of ERP data

The event-related potential (ERP) technique is one of the most widely used methods in cognitive neuroscience research to study the physiological correlates of sensory, perceptual and cognitive activity associated with processing information (1,2). An ERP eeg segment data usually involves three subsegments: pre-stimulus,stimulus and post-stimulus. Obviously, the mathematic models for pre-stimulus (or post-stimulus) and stimulus should be different. However, the general approach for ERP analysis in the literature always views the whole segment data as one model. In this paper we use Granger causality (GC) and recently proposed New causality (NC) methods to demonstrate that NC is more sensitive than GC to reveal true causality influence based on ERP data.
Continuing Professional Development in Higher Education

It is argued that Humboldt’s original definition of ‘scholarship’ (Wissenschaft), as well as Humboldt’s concept of the purpose of a university, continue to be relevant — with appropriate adaptations. They should be extended to include not only a unity between the practice of teaching and learning and research into teaching and learning, but also an overall unity of teaching and research, i.e. disciplinary as well as generic teaching and learning, together with disciplinary research and research into teaching and learning: all in the service of scholarship (Wissenschaft). This should be accompanied by appropriate academic staff development and training, framed on the basis of evaluated experience and going well beyond Humboldt, leading to a postgraduate qualification.
Power Cable Structure Recovery and Application Based on Mould Melt Joint

Many failures of power cable system expose that power cable accessories are the main weak point because of frequently poor workmanship and low-quality when installed on-site. That introduces a question that could we use another method to reduce power cable accessories failures rate. Mould Melt Joint (MMJ) is the new method to fully restore original cable body structure on the cable joints in the field, so that the electrical properties of the connection of cable and MMJ and the cable body equalization reach a high-security state. The technique has obvious technical advantages compared with traditional power cable joint. MMJ specification is almost equal to power cable outer diameter, which will occupy less space than traditional power cable accessories and could be applied in occasion such as sinuosity and high-altitude. Mould Melt Joint has been applied in many occasions with good effect, indicating a good application prospect.
Global stellar variability study in the field-of-view of the Kepler satellite

Aims. We present the results of an automated variability analysis of the Kepler public data measured in the first quarter (Q1) of the mission. In total, about 150000 light curves have been analysed to detect stellar variability and to identify new members of known variability classes. We also focus on detecting variables present in eclipsing binary systems, given the strong constraints on stellar fundamental parameters they can provide. Methods. The methodology we use here is based on the automated variability classification pipeline, which was previously developed for and successfully applied to the CoRoT exofield database and to the limited subset of a few thousand Kepler asteroseismology light curves. We use a Fourier decomposition of the light curves to describe their variability behaviour and use the resulting parameters to perform a supervised classification. Several improvements were made, including a separate extractor method to detect the presence of eclipses when other variability is present in the light curves. We also included two new variability classes compared to previous work: variables showing signs of rotational modulation and of activity. Results. Statistics are given on the number of variables and the number of good candidates per class. A comparison is made with results obtained for the CoRoT exoplanet data. We present some special discoveries, including variable stars in eclipsing binary systems. Many new candidate non-radial pulsators are found, mainly δ Sct and γ Dor stars. We studied those samples in more detail by using 2MASS colours, and the full classification results are made available as an online catalogue.
Genetic Markers in Idiopathic Pulmonary Arterial Hypertension (IPAH)

Abstract Idiopathic pulmonary arterial hypertension (IPAH) is a rare disorder with abnormally raised pulmonary arterial pressure. In IPAH, the trigger of the endothelial injury may result from oxidative stress, hypoxia, shear stress, inflammation in conjunction with genetic susceptibility. These epigenetic factors may have an influence on cell growth, differentiation and normal homeostatic functions of the endothelium, by altering endothelial permeability, production of growth factors and coagulation factors. Lung inflammation can lead to increased levels of oxidants that may also contribute to the development of IPAH. When the production of ROS exceeds, the capacity of the cell to detoxify them decreases and the resulting oxidative stress may be harmful to the integrity of biological tissue. Since in IPAH there is disruption of pulmonary artery vasculature, the generation of free radicals may further aggravate tissue injury and in view of its role in defensive mechanism, qualitative variation of SOD, CAT, AAT in IPAH is investigated in the present study to correlate specific electromorphic associations in its etiopathogenesis. In conclusion the present study revealed that Oxidative stress pathway (ROS/RNS) and inflammatory components may act as modifiers in pathogenicity of IPAH.
Globalisation and tax policies in Latin America : an empirical assessment

Siguiendo los resultados teoricos y empiricos analizados en un articulo publicado en un numero previo de Estudios Internacionales sobre el impacto de la globalizacion en las politicas fiscales de los paises de la Organizacion para la Cooperacion y el Desarrollo Economico (OCDE), este articulo presenta una investigacion empirica sobre el impacto de la globalizacion y la democracia en las politicas fiscales de 17 paises latinoamericanos en las decadas de 1980 y 1990. Usando diferentes indicadores para medir globalizacion (movilidad de capital y apertura comercial), democracia (Indice de Libertad) y la tasa de impuesto legal (Tasa de Impuesto a las Empresas, Tasa de Impuesto a los Ingresos Personales, y Tasa del Impuesto al Valor Agregado), este articulo analiza si la globalizacion presenta una negativa o positiva correlacion con las tasas de impuesto al capital y ingresos altos, tasa de impuesto al trabajo, y tasa de impuesto a los consumidores en los paises de Latinoamerica analizados. Adicionalmente, se evalua si la globalizacion y la democracia ejercen un efecto «compensatorio» o, por el contrario, «eficiente» en las tasas de impuesto al capital, trabajo y de consumidores en Latinoamerica.
Efficiency and Returns to Scale in the Bangladesh Banking Sector: Empirical Evidence from the Slack-Based DEA Method

The study provides new empirical evidence on the level of profit efficiency and returns to scale of the Bangladesh banking sector. We employ the Slack-Based Data Envelopment Analysis (SBM-DEA) method to assess the level of profit efficiency of individual banks over the years 2004 to 2011. The empirical findings indicate that the Bangladesh banking sector has exhibited the highest and lowest level of profit efficiency during years 2004 and 2011 respectively. We find that there are only eight banks have been profit efficient throughout the period under study. The empirical findings seem to suggest that most of Bangladesh banks have been experiencing economies of scale due to being at less than the optimum size, or diseconomies of scale due to being at more than the optimum size. Thus, decreasing or increasing the scale of production could result in cost savings or efficiencies. DOI: http://dx.doi. org/10.5755/j01.ee. 25.5. 5035
Gender Stereotypes 2.0: Self-representations of Adolescents on Facebook

Adolescent girls and boys use online networking sites differently, and girls have a higher risk of being harmed by non-adaptive use. The aim of the study was to assess the extent to which adolescents portray themselves according to gender stereotypes on their Facebook profiles. Participants were 623 Facebook users of both sexes who responded to the Bem Sex Role Inventory (BSRI) and the Personal Well-being Index (PWI). In the first step, the adolescents responded to the BSRI with respect to how they view a typical adult in terms of gender stereotypes. In the second step, half of them responded to the BSRI with respect to how they view themselves and the other half responded with respect to their self-presentation on Facebook. The results show that adolescents consider themselves to be less sexually differentiated than a typical adult of their own sex, both in their self-perception and their self-portrayal on Facebook. The study confirms that the psychological well-being of girls decreases considerably with age and that it is associated with a greater degree of masculinity. We conclude that adolescents produce accurate self-representations on their Facebook profiles, and both boys and girls tend to offer a less sexually differentiated self-concept and self-portrayal than that of the typical adult, with a slight preference for masculine traits; moreover, masculinity is associated with a greater degree of psychological well-being. RESUMEN Chicas y chicos adolescentes hacen un uso diferente de las redes sociales online, y las chicas presentan un mayor riesgo de verse perjudicadas por un uso no adaptativo. El objetivo de este estudio era investigar en qué medida los adolescentes se presentan en términos de estereotipos de género en sus perfiles de Facebook. Los participantes, 623 usuarios de Facebook de ambos sexos, contestaron el Bem Sex Role Inventory (BSRI) y el Personal Well-being Index (PWI). En la primera fase, respondieron sobre cómo ven a un adulto típico en términos de estereotipos de género. En la segunda fase, la mitad de ellos contestó el BSRI en relación a cómo se ven a sí mismos, y la otra mitad cómo se presentan en Facebook. Los resultados muestran que los adolescentes se consideran más sexualmente indiferenciados que un adulto típico de su mismo sexo, tanto en su auto-percepción como en su presentación en Facebook. Se confirma que el bienestar psicológico de las chicas baja considerablemente con la edad, y que está asociado a un mayor grado de masculinidad. Se concluye que los adolescentes producen representaciones verdaderas en sus perfiles de Facebook, y que existe una tendencia hacia una auto-concepción y auto-presentación más sexualmente indiferenciada con una leve preferencia por rasgos masculinos, tanto en chicos como en chicas; además, la masculinidad está asociada a un mayor grado de bienestar psicológico.
Optimal irrigation of cotton in Northern Greece using AquaCrop: A multi-year simulation study

A hybrid approach for optimizing irrigation was developed and tested via simulation of cotton cultivation in Northern Greece. At any given day during the season the remaining cultivation days were conceptually split into two parts: the five coming days and the rest of the season. Accurate weather forecasts were assumed to be available for the first period, during which only one irrigation event could take place. For the second period, average historical weather data were used as long-term forecasts, and rather than optimizing directly the irrigation events, the decision variables corresponded to a number of soil water levels at which irrigation would be triggered and the corresponding irrigation amounts. This hybrid approach ensured that the number of decision variables remained acceptably small so that the procedure can be computed repeatedly in real time during the season.
Quality of antenatal care services in selected health facilities of Kaski district, Nepal

Antenatal care is an evidence based interventions including recording medical history, assessment of individual needs, advice and guidance on pregnancy and delivery, screening tests, education on self-care and identification of conditions detrimental to health during pregnancy, first-line management and referral if necessary. It is an effective route for early detection of potential problems and early treatment of pregnant women which helps to reduce infant and maternal morbidity and mortality. The quality of ANC can be measured through the number and frequency of ANC visits, content of services received, the kinds of information given to women during their visits, client satisfaction level, and the qualifications of the provider. Worldwide, complications during pregnancy, childbirth and the postnatal period are the leading causes of death and disability among women of reproductive age. Although, antenatal care is an essential part of primary healthcare and its provision has expanded worldwide, only one third of all pregnant women in developing countries receive at least four antenatal care visits. Out of total maternal deaths worldwide, nearly 99% of death occurs in low income countries especially in Sub-Saharan Africa and South Asia. In Nepal, the 2016 NDHS result ABSTRACT
Universal relations with fermionic dark matter

We have recently introduced a new model for the distribution of dark matter (DM) in galaxies, the Ruffini-Arguelles-Rueda (RAR) model, based on a self-gravitating system of massive fermions at finite temperatures. The RAR model, for fermion masses above keV, successfully describes the DM halos in galaxies, and predicts the existence of a denser quantum core towards the center of each configuration. We demonstrate here, for the first time, that the introduction of a cutoff in the fermion phase-space distribution, necessary to account for galaxies finite size and mass, defines a new solution with a compact quantum core which represents an alternative to the central black hole (BH) scenario for SgrA*. For a fermion mass in the range 48keV ≤ mc 2 ≤ 345keV, the DM halo distribution fulfills the most recent data of the Milky Way rotation curves while harbors a dense quantum core of 4×106 M ⊙ within the S2 star pericenter. In particular, for a fermion mass of mc2 ∼ 50keV the model is able to explain the DM halos from typical dwarf spheroidal to normal elliptical galaxies, while harboring dark and massive compact objects from ∼ 103 M ⊙ tp to 108 M ⊙ at their respective centers. The model is shown to be in good agreement with different observationally inferred universal relations, such as the ones connecting DM halos with supermassive dark central objects. Finally, the model provides a natural mechanism for the formation of supermassive BHs as heavy as few ∼ 108 M ⊙ . We argue that larger BH masses (few ∼ 109 −10 M ⊙ ) may be achieved by assuming subsequent accretion processes onto the above heavy seeds, depending on accretion efficiency and environment.
Design of a laser distance sensor with a web camera for a mobile robot

The goal of the master thesis, authored by Bc. Mykhailo Ashykhmin was to propose, design, develop and test a low cost device for obstacle detection in front of a mobile robot. The author had to first search for suitable sensors, parts and algorithms to fulfill the task. The device structure was chosen to be composed of a web camera and a line laser. Based on the literature review he identified two suitable algorithms for the obstacle detection. The student has then designed the mechanical arrangement and the required parts. The parts were 3D printed. He then assembled the device together. Next step was to design a LabView program. The program takes the image from the USB connected camera. It processes the image of the on the obstacle projected laser line. Last step is the obstacle distance calculation in one selected point. The testing has confirmed a good function of the device. During the preparation of the thesis the student had worked independently, attended our regular weekly meetings and completed the assigned tasks without any delays. He has shown his ability to work independently on assigned tasks.