bluuebunny/crossref_metadata_2025_split huggingface dataset:
ESTUDIO EXPERIMENTAL: MANEJO DEL METISOPRINOL EN PACIENTES CON COVID-19
Authors: Borges Migled , Borges Migledys , Borges José , Bastidas Rosangel 
Published: August 2020

El covid-19 es una enfermedad caracterizada por presentar síndrome de dificultad respiratoria aguda y disfunción multisistemica. El presente ensayo clínico aleatorio controlado de diseño experimental se realizó con la finalidad de demostrar la eficacia del metisoprinol en el manejo antiviral alternativo del covid 19, en vista de no existir un tratamiento efectivo comprobado en la actual pandemia mundial decretada por la OMS. Se evaluó una población de 60 pacientes, distribuida en grupos de 30 (grupo experimental y un grupo control) de cualquier edad y sexo con comorbilidades controladas, los cuales presentaron signos y síntomas de SARS-CoV-2 y S02 mayor de 90% respirando aire ambiente en fase clínica menor de 15 días asistidos en consulta médica a domicilio en la ciudad de Guayaquil, Ecuador entre el periodo de marzo y abril de 2020. Dicho estudio se desarrolló para determinar un protocolo piloto que genere menos efectos adversos, evite complicaciones médicas en pacientes sintomáticos y revierta el cuadro clínico e imagenológico. Se demostró por cálculo de riesgo relativo la posibilidad casi nula de persistir signos y síntomas, así como la presencia de lesiones pulmonares en controles imagenológicos en un 03.33 % y reactividad rRT-PCR del 10% tratados con metisoprinol.
Palabras Clave: COVID-19, SARS-CoV-2, Metisoprinol.
Referencias
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[8]“Report of the WHO-China Joint Mission on Coronavirus Disease 2019 (COVID-19)”, World health Organization, report, 2020.
[9]S. Mallapaty, “Mystery deepens over animal source of coronavirus”, Nature, vol. 579, pp.18-19, March 2020.
[10]TT. Lam, N. Jia, YW. Zhang, et al, “Identifying SARS-CoV-2-related coronaviruses in Malayan pangolins”, Nature, March 2020.
Apparent dust size discrepancy in aerosol reanalysis in north African dust after long-range transport
Authors: Kramer Samantha J. , Alvarez Claudia , Barkley Anne E. , Colarco Peter R. , Custals Lillian , Delgadillo Rodrigo , Gaston Cassandra J. , Govindaraju Ravi , Zuidema Paquita 
Published: August 2020

Abstract. North African dust reaches the southeastern United States every summer. Size-resolved dust mass measurements taken in Miami, Florida, indicate that more than one-half of the surface dust mass concentrations reside in particles with geometric diameters less than 2.1 µm, while vertical profiles of micropulse lidar depolarization ratios show dust reaching above 4 km during pronounced events. These observations are compared to the representation of dust in the Modern-Era Retrospective analysis for Research and Applications, version 2 (MERRA-2) aerosol reanalysis and closely related Goddard Earth Observing System model version 5 (GEOS-5) Forward Processing (FP) aerosol product, both of which assimilate satellite-derived aerosol optical depths using a similar protocol and inputs. These capture the day-to-day variability in aerosol optical depth well, in a comparison to an independent sun-photometer-derived aerosol optical depth dataset. Most of the modeled dust mass resides in diameters between 2 and 6 µm, in contrast to the measurements. Model-specified mass extinction efficiencies equate light extinction with approximately 3 times as much aerosol mass, in this size range, compared to the measured dust sizes. GEOS-5 FP surface-layer sea salt mass concentrations greatly exceed observed values, despite realistic winds and relative humidities. In combination, these observations help explain why, despite realistic total aerosol optical depths, (1) free-tropospheric model volume extinction coefficients are lower than those retrieved from the micro-pulse lidar, suggesting too-low model dust loadings in the free troposphere, and (2) model dust mass concentrations near the surface can be higher than those measured. The modeled vertical distribution of dust, when captured, is reasonable. Large, aspherical particles exceeding the modeled dust sizes are also occasionally present, but dust particles with diameters exceeding 10 µm contribute little to the measured total dust mass concentrations after such long-range transport. Remaining uncertainties warrant a further integrated assessment to confirm this study's interpretations.
Physically based model for gully simulation: application to the Brazilian semiarid region
Authors: Alencar Pedro Henrique Lima , de Araújo José Carlos , dos Santos Teixeira Adunias 
Published: August 2020

Abstract. Gullies lead to land degradation and desertification as well as increasing environmental and societal threats, especially in arid and semiarid regions. Despite this fact, there is a lack of related research initiatives. In an effort to better understand soil loss in these systems, we studied small permanent gullies, which are a recurrent problem in the Brazilian northeastern semiarid region. The increase in sediment connectivity and the reduction of soil moisture, among other deleterious consequences, endanger this desertification-prone region and reduce its capacity to support life and economic activities. Thus, we propose a model to simulate gully-erosion dynamics, which is derived from the existing physically based models of Foster and Lane (1983) and Sidorchuk (1999). The models were adapted so as to simulate long-term erosion. A threshold area shows the scale dependency of gully-erosion internal processes (bed scouring and wall erosion). To validate the model, we used three gullies that were over 6 decades old in an agricultural basin in the Brazilian state of Ceará. The geometry of the channels was assessed using an unmanned aerial vehicle and the structure from motion technique. Laboratory analyses were performed to obtain soil properties. Local and regional rainfall data were gauged to obtain sub-daily rainfall intensities. The threshold value (cross-section area of 2 m2) characterizes when erosion in the walls, due to loss of stability, becomes more significant than sediment detachment in the wet perimeter. The 30 min intensity can be used when no complete hydrographs from rainfall are available. Our model could satisfactorily simulate the gully-channel cross-section area growth over time, yielding a Nash–Sutcliffe efficiency of 0.85 and an R2 value of 0.94.
Siloxane treatment of metal oxide semiconductor gas sensors in temperature-cycled operation – sensitivity and selectivity
Authors: Schultealbert Caroline , Uzun Iklim , Baur Tobias , Sauerwald Tilman , Schütze Andreas 
Published: August 2020

Abstract. The impact of a hexamethyldisiloxane (HMDSO) treatment on the response of doped SnO2 sensors is investigated for acetone, carbon monoxide and hydrogen. The sensor was operated in temperature cycles based on the DSR concept (differential surface reduction). According to this concept, the rate constants for the reduction and oxidation of the surface after fast temperature changes can be evaluated and used for quantification of reducing gases as well as quantification and compensation of sensor poisoning by siloxanes, which is shown in this work. Increasing HMDSO exposure reduces the rate constants and therefore the sensitivity of the
sensor more and more for all processes. On the other hand, while the rate
constants for acetone and carbon monoxide are reduced nearly to zero already
for short treatments, the hydrogen sensitivity remains fairly stable, which greatly increases the selectivity. During repeated HMDSO treatment the
quasistatic sensitivity, i.e. equilibrium sensitivity at one point during
the temperature cycle, rises at first for all gases but then drops rapidly for acetone and carbon monoxide, which can also be explained by reduced rate
constants for oxygen chemisorption on the sensor surface when considering
the generation of surface charge.
Analysis of the possibility of fish and meat raw materials combination in products
Authors: Bozhko Nataliia , Tischenko Vasyl , Pasichnyi Vasyl , Matsuk Yuliiа 
Published: August 2020

Aspects for the use of regional raw materials in ground food technology require further study of functional and technological properties to be able to predict them depending on the chemical composition of raw materials and processing methods. The aim of our research was to comparatively study the chemical composition, functional-technological, rheological properties of fish raw materials, and duck meat in terms of their possible compatibility in meat-containing products. The subject of our research was representatives of the regional aquaculture Carassius gibelio and Hypophthalmichthys molitrix, as well as the meat of Muscovy duck (Cairina moschata). It has been established that the nutritional value of freshwater aquaculture objects Carassius gibelio and Hypophthalmichthys molitrix is virtually identical in protein and fat content, making them interchangeable in terms of nutritional balance when developing the combined product. The ratio of protein and fat to water for duck meat is higher 3.54 – 4.88 times that of aquaculture, which can be used in the selection of components of the formulation of emulsified products, taking into account the nutrient balance. It has been confirmed that the addition of salt enhances water holding capacity, water binding capacity, and fat holding capacity. Water holding and water-binding capacities of minced fish are higher due to higher water levels, which, combined with the low-watering duck meat, can be predicted to create a forcemeat system with high functional-technological properties. The ability to emulsification and retain fat in the state of emulsion in minced duck meat has proved to be better, which when combined with fish minced meat can compensate for the ability to retain fat in the system of combined products. A combination of regional aquaculture with waterfowl meat will not only improve the functional and technological parameters of combined minced systems but also balance them by correcting the composition of proteins and fats.
Effect of modelled stress and adaptogens on microstructural characteristics of pork from fast-growing hybrid animals
Authors: Semenova Anastasia , Kuznetsova Tatyana , Nasonova Victoria , Nekrasov Roman , Bogolubova Nadezhda 
Published: August 2020

This research aimed to study the effect of modelled technological stress and the introduction of selenium and dihydroquercetin (DHQ) into pig diets on the microstructure of M. longissimus dorsi muscle tissue. The in vivo experiment was carried out on 36 hybrid young barrows (Large White x Landrace) x Duroc) with an initial live weight of 34 – 36 kg until they reached a weight of not less than 110 kg. The animals were divided into four groups: 1 (C-) – pigs did not receive adaptogens and were not subjected to modelled technological stress; 2 (C+) – pigs did not receive adaptogens but were subjected to stress via relocation of animals; 3 (С+Se) – pigs were subjected to stress and received 0.2 mg Se.kg-1 feed as selenium proteinate in addition to their diet; 4 (С+DHQ) – pigs were subjected to stress and received 32 mg DHQ.kg-1 feed in addition to their diet. The best results regarding the muscle tissue condition were recorded in the musle L. dorsi samples were taken from the carcasses of group 4 (С+DHQ). Analysis of variance using the Fisher–Snedecor test confirmed that addition of adaptogens led to an improvement of the pH24 value (at p = 0.05, f observed = 5.90 >fcritical = 4.17) and moisture-holding capacity (at p = 0.05, f observed = 3.04 >fcritical = 2.92). The effect of long-term addition of DHQ to pig diets (78 days) on the condition of muscle tissue was studied for the first time, which allowed us to conclude its role in the prevention of myopathic changes in the muscle fibre structure.
“I can only put together thoughts filed away in my brain: Who would pay me to do that?”
Authors: Turner Caroline Sotello Viernes 
Published: August 2020

ABSTRACTInvited to write about how her creativity led to the development and broad impact of her body of research on diversity in higher education, Caroline Turner employs a series of life journey vignettes to narrate a growing awareness of her insights which led her to pursue an academic journey and to empirically explore the lived experiences of other minoritized students and faculty.
Evaluating Gifted Education Programs Using an Equity-Based and Culturally Responsive Checklist to Recruit and Retain Under-Represented Students of Color
Authors: Ford Donna Y. , Davis Joy Lawson , Dickson Kenneth T. , Scott Michelle Frazier Trotman , Grantham Tarek C. , Moore III James L. , Taradash Gloria D. 
Published: August 2020

ABSTRACTBlack and Hispanic students are consistently underrepresented in gifted and talented education and related academic programs. Attitudes, philosophy, tests and other instruments, and policies and procedures are often the fundamental barriers. In this article, recommendations and resources are shared to guide school personnel in evaluating their gifted programs in terms of equity and cultural responsiveness. Included is a federal formula for calculating underrepresentation and setting equity goals, and an equity-based culturally responsive bill of rights that targets several areas for schools to evaluate gifted and talented education in their recruiting and retaining gifted students of color.
The Leaching of Iron and Loss of Phosphate in Acid Sulphate Soil Due to Rice Straw and Phosphate Fertilizer Application
Authors: Fahmi Arifin , Radjagukguk Bostang , Purwanto Benito Heru 
Published: August 2020

Low phosphorus (P) availability and high iron (Fe) concentration are the dominant characteristics of acid sulphate soils (ASS). Optimum agricultural management practices are required to leach the excess Fe2+ and to prevent or minimize loss of P from the soil in order to obtain conditions favorable for rice growth. The aim of this experiment was to study the effect of organic matter (OM) application in the form of rice straw (RS) on leaching of Fe and loss of P in an acid sulphate soil. The experiment was conducted in the glasshouse consisting of three treatment factors utilizing the completely randomized design with three replications. The first factor was soil condition consisting of continuous application of RS and without RS during the past five years. The second factor was application of fresh RS consisting of fresh RS application and without fresh RS application, whereas the third factor was P application consisting of three rates of SP-36 fertilizer (0.5, 1.0 and 1.5 times of the recommended rate). The results showed that RS application was effective in preventing P loss from the soil at 6 weeks after planting (WAP) and decreased the pH of leachate at all observations time but it increased Fe2+ concentration in leachate (0.07-0.42% Fe2+ in the soil were leached or 2-5 folds higher than without RS application).
Enhanced Soil Chemical Properties and Rice Yield in Acid Sulphate Soil by Application of Rice Straw
Authors: Nurzakiah Siti , Indrayati Linda , Nurita . 
Published: August 2020

Swampland development such as acid sulphate soil for agricultural cultivation has various problem, including high soil acidity, fluctuated and unpredictable water flooding and the presence of toxic elements such as Fe which resulting in low crop yields. The research was conducted at the experimental station Belandean, Barito Kuala regency in dry season 2007. The objective of research was to study the effect of rice straw on the dynamic of soil pH, the concentration of iron and sulphate and yield on tidal land acid sulphate soil at two different water inlet channel. This research was designed in RCBD (Randomized Completely Block Design) with five treatments (0, 2.5, 5.0, 7.5 and 10 Mg ha-1) and four replications. Dolomite as much as 1 Mg ha-1 was also applied. This research was divided into two sub-units experiment i.e. two conditions of different water inlet channel. The first water channels were placed with limestone and the second inlet was planted with Eleocharis dulcis. The results showed that (i) rice straw application did not affect the dynamic of soil pH, concentration of iron and sulphate, and (ii) the highest yield was obtained with 7.5 Mg ha-1 of rice straw.
A Site-Specific Fertilizer Recommendation Based on the Phosphorus and Potassium Status in Mempawah District, West Kalimantan
Authors: Hatta Muhammad 
Published: August 2020

The recommendations of Phosphorus (P) and Potassium (K) fertilization for rice are still not site-specific yet due to a lack of required soil data information. The P and K status of the paddy fields that provide information on the low, medium, and high P and K nutrient status are very useful for determining recommended the site-specific fertilizer in the the district area. The purpose of the research was to determine the site-specific fertilizer recommendation for paddy field based on their P and K status. This research was based on the field survey and the soil analysis in the laboratory. The soil samples were taken using a grid system, and the P and K levels were assessed by using a 25% HCl extraction. Soil samples were taken in a composite manner on all paddy fields in which their status have been identified. The composite soil samples were determined from 10 - 15 individual samples (sub-samples) with a sampling distance of each sub-sample of 25-50 m in the field. The soil samples were taken in the overlay with a depth of 0-20 cm. Taking sub-samples were done by a diagonal or a zigzag method according to the conditions of paddy fields. The results of the study presented that the nutrient status of P and K and the fertilizer recommendations in paddy fields for rice plants located in 9 sub-districts in Mempawah Dsitrict had shown that nutrient status of P, on average, were from moderate to high levels, meanwhile, the nutrient status of K was from low to high levels. Recommendations for fertilizing rice fields in several sub-districts in Mempawah Regency are mostly 150 kg NPK (15:15:15) ha-1, 200 kg Urea ha-1 and 25 kg KCl ha-1.
Attitudes towards Gender Equality of Government Institution´s Workers in Southeastern Mexico
Authors: Pérez-Aranda Gabriela Isabel , Ramos-Antonio Paulina , Estrada-Carmona Sinuhé , García-Reyes Liliana , Tuz-Sierra Miguel Angel , Sarabia-Alcocer Betty 
Published: August 2020

The objective of this research was to analyze if there are differences between the Institutions of Social and Public Security Assistance and between men and women who work for the government of the State of Campeche, southeastern Mexico. This article uses a quantitative methodology; For this, the Questionnaire &quot;Attitudes towards Gender Equality&quot; (CAIG) was applied, which was prepared by Amelia Sola, Isabel Mart&iacute;nez Bellonch and Jos&eacute; Luis Meli&aacute; (2003), validated in a Mexican sample by Olga Marfil Herrera (2006) with an alpha of Cronbach&#39;s .885.
The sample was composed of 212 people, 79 women and 133 men, six factors were evaluated. The Student&#39;s t-test revealed that there are significant differences; the Social Assistance Institutions present greater egalitarian attitudes as does the group of women. Meanwhile, the percentiles show these egalitarian attitudes at a medium level. The Analysis of Variance (ANOVA) to compare groups revealed regarding religion, there are significant differences between the Christian, the Catholic and the people who claim to have no religious beliefs; Catholics are those who present a more favorable attitude towards gender equality.
On Statistical Assessments of Racial/Ethnic Inequalities in Cigarette Purchase Price among Daily Smokers in the United States: Non-Hispanic Whites Pay Least
Authors: N. Soulakova Julia , Ha Trung 
Published: August 2020

We discuss statistical methods suitable for comparing multiple populations versus one reference population and consider two common problems: (1) detecting all significant mean differences and (2) demonstrating that all mean differences are significant. Discussed methods include the Bonferroni approach (both problems), Min test (problem 2), and Strassburger-Bretz-Hochberg (SBH) confidence interval for estimating the smallest mean difference (problem 2). They illustrate the methods using the pooled 2010–2015 Tobacco Use Supplement to the Current Population Survey (TUS-CPS) data on the cigarette purchase price (per pack) reported by adult daily smokers (n = 34,728). The goal was to show that among seven considered racial/ethnic groups of daily smokers, non-Hispanic (NH) Whites paid least for cigarettes (on average). We used the design-based multiple linear regression to derive the estimates and raw p-values. The Min test supported the study goal. Likewise, SBH lower 95% confidence interval bound was $0.08, indicating that the other racial/ethnic groups of daily smokers paid at least eight cents more for a pack of cigarettes (on average) than did non-Hispanic Whites. However, Bonferroni method (that was originally proposed for problem 1) failed to support the study goal. The study highlights the importance of choosing the right statistical method for a given problem.
Numerical Investigation of Hydrodynamic and Thermal Boundary Layer Flows over a Flat Plate and Transition Control
Authors: CANBOLAT Gökhan , YILDIZELİ Alperen , KÖSE Haluk Anıl , ÇADIRCI Sertaç 
Published: August 2020

In
this study, Computational Fluid Dynamics (CFD) calculations are performed with
ANSYS-Fluent for an external flow over a flat plate under constant surface
temperature conditions. By using an Active Flow Control (AFC) method, the flat-plate
is heated to manipulate the transition region. Calculations are performed for a
steady and turbulent flow at 15 m/s free-stream velocity. Local skin friction
coefficient and local heat transfer coefficient distributions along the
flat-plate are investigated for laminar and turbulent boundary layers at various
constant surface temperatures. For laminar and turbulent flow boundary layer
characteristics, theoretical correlations in the literature are used to verify
the numerical results. Results show that theoretical correlations are highly consistent
with CFD results only in the laminar and turbulent regions and it is also shown
that transition can only be predicted by CFD simulations. On the other hand, heating as an AFC method is
found to be useful in delaying transition regime over a flat plate.