bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of altitude and size of livestock farms on productive and reproductive aspects in the south-western region of Norte de Santander
Authors: Báez-Sandoval Giovanni Mauricio , Gutiérrez-Lizarazo Diana Esperanza
Published: April 2021

To evaluate milk production (LP), daily gain of weight in calves (GDP), interval between births (IEP) and use of artificial insemination in Cacota, Chitagá, Pamplona, Pamplonita, Silos, and Mutiscua, a sample of farms was selected (n=113) and a direct survey was applied. Two sizes of farms were characterized: up to 10 animals (47.8%) and >10 animals (52.2%). The farms were grouped by quartiles of altitude in meters above sea level (MSNM) (Q1: 1600-2300 (n=27), Q2: 2300-2600 (n=28), Q3: 2600-2800 (n=28), Q4: 2800-3800 (n=30). The Normande race predominates (38.2%), followed by Holstein (23.0%). The presence of Normande decreases with altitude descent, being different between Q4 and Q1 (P=0.009). Genotypes of Cebuins (Gyr, Brahman) appear in Q2 and increase in Q1 (P=0.03). The PL was 5.5±0.2 L/cow*day, with higher productions in Chitagá and Mutiscua (6.4±0.6 and 6.1±0.4 L/cow*day respectively), and lower (P=0.005) in Pamplonita 4.4±0.4 L/cow*day. The GDP was 367±17 g/day, and tended to be lower (P = 0.09) in farms with up to 10 animals (336±23.3 g/day, n=46) compared to farms with more than 10 animals (393±23.7 g/day, n=53). The larger farms (>10 animals) had a lower average IEP with 393±5.5 days (n=59), compared to farms with up to 10 animals (419±11.4 days, n=54; P= 0.04). For quartile Q1, the IEP was higher (438 days, P = 0.01) than Q4 (382 days). The use of semen from nine breeds for artificial insemination was reported, 48.8% corresponding to specialized dairy breeds (Jersey 27.9%, Ayrshire 11.6%, and Holstein 9.3%), 30.2% dual purpose European breeds (Normandy 27.9%, Simmental 2.3%), and 21.0% zebuin breeds or their crosses (Gyr 11.7%, Guzera 4.7%, Girolando 2.3%, and Brahman 2.3%). The present characterization allows us to diagnose the current state of the livestock industry in the region studied and to project technical guidelines for improvement
Evaluation of the modal parameters of two shafts, one manufactured with a composite materials and the other manufactured with structural Steel, through the implementation of a technique of Operational Modal Analysis (OMA)
Authors: Nova-Agudelo Fabian , Sánchez-Acevedo Heller Guillermo , Villegas-Bermudez Diego
Published: April 2021

This paper focuses on obtaining the modal parameters of two shafts in operation. The research has been planned using a shaft with composite materials, carbon fibers in an epoxy matrix and an axis manufactured with structural steel A36. The objective is to assess and validate the implementation of a technique of Operational Modal Analysis (OMA) in axes of different materials, and at the same time, compare the dynamic answer of the elements involved in the research.
Corrosion resistance of bainitic steels alloyed with boron
Authors: Lizarazo-Ávila Pedro Javier , Rodríguez-Baracaldo Rodolfo , Olaya-Flórez Jhon Jairo
Published: April 2021

Due to its good combination of properties and its wide range of application in the automotive and rail sector, among others, banitic steels have been studied by modifying their chemical composition using different alloys in order to improve their resistance, as is the case of boron, which is an element that allows to increase the mechanical properties of steel and its behavior against phenomena such as wear when is used in small quantities. In the present investigation, through of saline chamber and potentiodynamic polarization tests, the influence of boron was studied in steels with bainitic microstructure against phenomena as corrosion by varying its percentage in each sample analyzed, which was developed from the measurement of parameters such as the percentage of corroded area and the current density. Although no significant influence of boron was observed in the saline chamber results, in potentiodynamic polarization, a greater reduction in current density was observed for steel with a higher boron content, which results in a better resistance to corrosion compared to other steels that had a lower percentage of this element.
Magnetorheological fluids: synthesis, properties and applications
Authors: Sánchez-Alonso Manuel Alejandro , Camporredondo-Saucedo Jesús Emilio , Castruita-Avila Laura Guadalupe , Equihua-Guillén Fabián , García-Lara Adrián Moisés , Muñoz-Zertuche Abril Alexia
Published: April 2021

The magnetorheological fluids have the ability to modify their viscosity quickly by subjecting it to a magnetic field, a quality that classifies them in the category of intelligent materials. Such fluids include three main components; the base fluid that is generally mineral or synthetic oil, magnetizable particles which are dispersed in the base fluid and the additives or stabilizers that prevent agglomeration and sedimentation of the particles, as well as the degradation induced by the carrier medium. The main challenge of these fluids is to maintain the rheological response to the magnetic field, as well as avoid the chemical and microstructural instability of the magnetoreological fluids. In the present investigation an exhaustive bibliographic review was carried out to understand the main aspects of these types of materials, their properties as well as the main applications in the different branches of industry and medicine. The most recent contributions focused on the chemical stability of magnetic particles through the application of surface coatings are discussed.
CFD modelling of biomass boilers - a review of the state of the art
Authors: García-Sánchez Gabriel , Chacón-Velasco Jorge , Fuentes-Díaz David , Jaramillo-Ibarra Julián , Martínez-Morales Jairo
Published: April 2021

Combustion is the main method of converting biomass to energy, either by direct heating systems or by boilers. By means of CFD models, it is possible to optimize the behavior of those systems and improve significantly its performance, without incurring the economic and environmental cost of experimental studies. However, modelling of biomass combustion is a complex process that requires a large number of sub-models and computational resources for a detailed description, therefore, different approaches have been developed which depend on the system and simulation objective. In this work, a review of the state of art of modelling of solid biomass combustion in the last years is presented, including classification, description and analysis of several of the main models about the subject.
Identifying change points for linear mixed models: a solution through evolutionary algorithms
Authors: Garcia-Cruz Ehidy Karime , Castro-Silva Hugo Fernando , Salazar-Uribe Juan Carlos
Published: April 2021

Mathematical models are used to describe the relationship between two or more variables or features over the target population. Statistically, Simple Linear regression model has been extensively applied and the properties of their estimators are well known. However, this kind of model is not correctly applied in most cases, such as a longitudinal setting. Linear mixed models (LMMs) are useful when the measurements have been done over a specific interval of time. One of the most important assumptions, on both models, has been established as that the model holds for the whole data. In latter case, we could find one or several points which the function changes into. This proposal allows us to estimate the points where the model changes by minimizing a specific risk function or a loss function associated with the fitted model.
Evaluation of the quality of the silage obtained from the uniformization pruning in intensive silvopastoral systems
Authors: Londoño-Carmona Juan David , Mahecha-Ledezma Liliana , Angulo-Arizala Joaquín
Published: April 2021

The objective of the present work was to evaluate the nutritional composition of the silage made from the material collected from the uniformization pruning in an intensive SSP with buttercup. (Tithonia diversifolia) y tilo (Sambucus nigra), and mixed in different proportions with sugar cane (Saccharum officinarum) and King grass (Pennisetum hybridum), using a commercial additive of lactic acid bacteria and ruiminal content (rumination). Six treatments were evaluated with five repetitions and a weight of 10 kg per treatment, distributed as follows: T1:  25% T. diversifolia + 25% S. nigra + 50% S. officinarum with commercial additive (BTCac), T2: T1 with ruiminal content (BTCru), T3: 25% T. diversifolia + 25% S. nigra + 50% + P. hybridum with commercial additive (BTPac), T4: T3 with ruiminal content (BTPru) T5: 25% T. diversifolia + 25% S. nigra + 25% S. officinarum + 25% P. hybridum with commercial additive (BTCPac), T6: T5 with ruiminal content (BTCPru). With the obtained data an asymmetric factorial design of two levels was carried out, the analyzed variables were: dry matter (MS), ash (CEN), crude protein (PC), neutral detergent fiber (NDF), lignin (LIG) processed by NIRS , through agreement U of A - DaryCaby and pH. The CEN presented significant difference (p <0.05) between treatments BTCac (11.92%), BTCru (11.62%) and BTCPac (14.76%), BTCPru (14.80%), BTPac (14 , 66%), BTPru (13.86%), but not between additives or interaction between treatment and additives, the NDF presented significant difference (p = 0.0375) among additives (58.08% and 60.39% commercial and ruiminal content respectively), but not between treatments or interaction between additive and treatments, lignin (LIG) presented a significant difference (p <0.05) between treatments BTCac (5.1%) and BTCPru (7.5%) ), BTPac (7.6%), BTPru (6.8%), and interaction between additive and treatments and there was no significant difference between treatments, the pH presented a significant difference (p <0.05) between treatments BTCac (4.1), BTCru (4.2) and BTCPac (4.7), BTCPru (4.6), BTPac (4.6), BTPru (4.8), and there was no difference between additives or interaction between additive and treatments, the MS and Pc did not present a significant difference among treatments, or interaction between additive and treatments, with averages of 16.5% and 10.7% respectively.
Eficacia en la Implementación de las Líneas estratégicas de Generación de Empleo del Plan Municipal de Desarrollo 2016-2019 en la Ciudad de San José de Cúcuta
Authors: Aro-Meza Ariyaeel
Published: April 2021

Se analizó la eficacia en la implementación de las líneas estratégicas de generación de empleo del plan municipal de desarrollo 2016-2019 en la ciudad de San José de Cúcuta. Se empleó una investigación cuantitativa con alcance descriptivo. La población correspondió a los programas sociales destinados a la generación de empleo en el municipio, para la que se aplicó un muestro tipo censo, usando como instrumentos una ficha técnica para la observación de información y  los datos se agruparon siguiendo un modelo estadístico descriptivo. Son muchas las estimaciones y proyecciones que se tomaron en cuenta dentro del PDM, las cuales se fundamentaron sobre cuatro líneas o dimensiones de acción: Dimensión Social, Dimensión Económica, Dimensión institucional y Dimensión ambiental. Muchas de las medidas asociadas a la generación de empleo no tuvieron el alcance deseado y algunas se perdieron por falta de una mejor planificación y creación de unos indicadores reales y evaluables por parte de los funcionarios de la administración municipal. Se estableció el cumplimiento de los planes proyectados en el PMD, diagnosticando un nivel de logro superior al 90%, el alcance de los mismos y qué mecanismo son los más indicados para mejorar los planes presentes en el mismo.
Perfil del Contador Público para el ejercicio de la auditoría financiera
Authors: Suarez-Vera Joseph Alejandro , Ospina-Hernández German Gustavo
Published: April 2021

El presente estudio tiene como objetivo determinar qué aspectos cualidades y características debe poseer el perfil de un contador público para el desarrollo de un encargo de auditoría financiera, para ello se realizó un proceso metodológico para la localización de los diferentes documentos bibliográficos que contribuyeran en el desarrollo del artículo en aspectos tales como definiciones, cualidades, propiedades, características entre otros, obteniendo que el perfil del contador público en el desarrollo de un encargo de auditoría financiera deberá de tener diferentes aspectos importantes tales como la imparcialidad, la diplomacia, la confidencialidad, el pensamiento crítico y la independencia, las cuales son útiles para el desarrollo de un auditoría financiera eficaz y eficientes, de esta forma concluyendo que un contador público que en su perfil cuente con alguna de estas características les ayudara en el desarrollo de cualquier proceso de auditoría, destacando que un auditor que posea estos aspectos en su perfil no será fácilmente influenciado por terceros para cometer adulteraciones en los informes de auditoría.
Impacto de los programas de transferencias monetarias condicionadas en la prevención del consumo de sustancias psicoactivas en los jóvenes
Authors: Barroso-Carrillo Luis Oscar , Barrientos-Rosales María de los Ángeles
Published: April 2021

Partiendo de un análisis descriptivo y documental de diversos autores que han profundizado sobre los programas de Transferencias Monetarias Condicionadas, sus objetivos y la manera de operar; se logrará establecer que con la ayuda de componentes de habilidades para la vida, estos han logrado impactar en la reducción del consumo de sustancias ilegales en aquellos lugares donde se han implementado. Lo anterior deja como tema de discusión, la baja importancia que se le ha brindado a las habilidades para la vida como herramienta que ayuda a la consolidación del proyecto de vida de los jóvenes  y finalmente deja como importante conclusión que las TMC pueden lograr un importante impacto en la reducción del consumo de sustancias ilegales y una mejor calidad de vida, siempre y cuando vayan  acompañadas de un acceso adecuado a la salud, educación progresiva y un fortalecido componente de habilidades para la vida.
La Confiabilidad en las Monedas Digitales como Inversión Práctica en la Economía del Futuro
Authors: González-Millan Julio Cesar , Guardiola-Plazas Luis Fernando
Published: April 2021

En el mundo de la era tecnológica, las monedas digitales están marcando el inicio de una revolución industrial que podría llamarse revolución de las criptomonedas, cada país le da su valor sobre la economía funcional que posee, y tiene una moneda para comercializar a través de la tecnología digital, lo que presumiblemente hasta hoy es una evolución de monedas intangibles, y está desplazando los billetes, pero que también se están imprimiendo billetes sobre criptomonedas, lo que quiere decir que es dinero efectivo, seguro y práctico. En el presente trabajo se realiza proponiendo como objetivo general: Determinar la confiabilidad en las monedas digitales como inversión práctica en la economía del futuro. Se realizó una investigación tipo documental y descriptiva, de análisis, basadas en revistas, fuentes de internet, informes, y libros respecto al tema. Se concluye que la confiabilidad de la moneda es alarmante, respecto a la cantidad de inversiones que están haciendo las personas y los comercios con esta revolución de economía digital, pero que el dólar es difícil que se desplace, porque casi todos los países del mundo comercializan sus productos con esta divisa, y Colombia cuenta con proyecciones de cambiar su moneda colombiana, dada a conocer la criptomoneda Triskel, aunque lo difícil no es crearla sino mantener su poder de convencimiento.
Exploring non-linear relationship between foreign ownership and firm performance
Authors: Gupta Neeraj , Agarwal Tarun , Jagwani Bhagwan
Published: April 2021

This study aims to examine the impact of foreign ownership on the performance of Indian firms. Additionally, it also analyses the non-linear relationship of foreign ownership with firm performance. A panel data approach has been used in this study. Specifically, the fixed effect estimation technique is used to examine the relationship between foreign ownership and firm performance during the period 2009–2010 to 2018–2019. The foreign institutional shareholders and the foreign corporate bodies hold more shareholding than the foreign individual investors. The authors find that foreign institutional investors and foreign corporate bodies bear a positive relationship with the performance of Indian firms. Additionally, foreign ownership shows a non-linear relationship with firm performance. The results are robust across the various proxies of firm performance, and sub-samples based on foreign ownership
The effect of third-party funds, credit risk, market risk, and operational risk on profitability in banking
Authors: Sondakh Jullie Jeanette , Tulung Joy Elly , Karamoy Herman
Published: April 2021

The study aimed to investigate the effect of third-party funds, credit risk, market risk, and operational risk on profitability in banking, especially on the banks included in BUKU 2 category simultaneously or partially. The sampling technique used in the study was saturated sampling. Therefore, a number of 54 banks was obtained as samples. The data in the study were quantitative data, namely in form of financial statements of banking companies included in BUKU 2 category for the period 2014–2017. The data were obtained from the websites of the concerned banks. The research method used was multiple linear regression analysis. In the study, to measure the third-party funds variable we used third-party fund (TPF) ratio, to measure the credit risk variable we used non-performing loan (NPL) and non-performing financing (NPF) ratio, to measure the market risk variable we used net interest margin (NIM) ratio, to measure the operational risk variable we used BOPO ratio, and to measure the profitability variable we used return on assets (ROA) ratio. The result of the study showed that partially third-party funds and credit risk had no significant effect on profitability, partially market risk had a significant positive effect on profitability, and partially credit risk had a significant negative effect on profitability. While simultaneously, third-party funds, credit risk, market risk, and operational risk had a significant effect on profitability.
Genomic analysis of an outbreak of bovine tuberculosis in a man-made multi-host species system: a call for action on wildlife in Brazil
Authors: Lima Daiane A. R. , Zimpel Cristina K. , Patané José Salvatore , Silva-Pereira Taiana T. , Etges Rodrigo N. , Rodrigues Rudielle A. , Dávila Alberto M.R. , Ikuta Cássia , Neto José Ferreira , Guimaraes Ana Marcia , Araújo Flábio
Published: April 2021

We report on a 15-year-long outbreak of bovine tuberculosis (bTB) in
wildlife from a Brazilian safari park. A timeline of diagnostic events
and whole-genome sequencing (WGS) of 21 Mycobacterium bovis
isolates from deer and llamas were analyzed. Accordingly, from 2003 to
2018, at least 16 animals, from 8 species, died due to TB, which is
likely an underestimated number. In three occasions since 2013, the deer
presented positive tuberculin tests, leading to the park closure and
culling of all deer. WGS indicated that multiple M. bovis strains
were circulating, with at least three founding introductions since the
park inauguration in 1977. Recent transmission events between nearby
farms and the park were not found based on WGS. Lastly, by discussing
socio-economic and environmental factors escaping current regulatory
gaps that were determinant of this outbreak, we pledge for the
development of a plan to report and control bTB in wildlife in Brazil.
Testing the Asthma Predictive Index as a diagnostic tool in preschoolers: analysis of a longitudinal birth cohort
Authors: Castro-Rodriguez Jose , Forno Erick , Padilla Oslando , Casanello Paola , Krause Bernardo , Borzutzky Arturo
Published: April 2021

Diagnosing asthma in preschool children remains an unsolved challenge,
at a time when early identification would allow for better education and
treatment to prevent morbidity and lung function deterioration.
Objective: To evaluate if the Asthma Predictive Index (API) can be used
as surrogate for asthma diagnosis in preschoolers. Methods: Birth cohort
of 339 pregnant women enrolled at delivery and their offspring, who were
followed for atopy, wheezing, and other respiratory illnesses through 30
months of age. The API was determined at 30 months of age by the
researchers; and examined its association with physician-diagnosed
asthma during the first 30 months, made independently by the primary
care physician not involved in the study. Results: Among 307 offspring
with complete follow-up, 44 (14.3%) were API+. Maternal body mass
index, maternal education, past oral contraceptive use, birthweight,
placenta weight, age of daycare at 12m, gastroesophageal reflux disease
at 12m, acute otitis media at 18m, bronchiolitis, croup and pneumonia,
cord blood adiponectin were all associated with API+. In the
multivariable analysis, API+ was associated with almost 6-fold odds of
asthma diagnosis (adjusted OR= 5.7, 95% CI [2.6-12.3]), after
adjusting for the relevant covariates above including respiratory
infections like bronchiolitis and pneumonia. The API sensitivity was
48%, specificity 92%, 61% PPV, 88% NPV, 6.4 LR+, 0.56 LR-, 0.84
diagnosis accuracy. The adjusted odds for asthma was 11.4. Conclusions:
This longitudinal birth cohort suggests, for first time, that API could
be used as a diagnostic tool, not only as a prognostic tool, in toddlers
and preschoolers.
A DFT study of epoxidation of propylene on dimer MoO(x)
Authors: Peng Jiahui , Wan Zhehong , Chen Wei , Hu Hui , Huang Qingming , Chen Xiaohui
Published: April 2021

Propylene oxide is an important chemical raw material. In this paper,
Density Functional Theory (DFT) was used to calculate the epoxidation of
propylene on the dimer MoOx by Gaussian 09 software. Firstly, we
established the structure of the dimer MoOx/SiO2 and analyzed it, and
then calculated the dehydrogenation process of propylene and the
formation process of PO. It was found that the activity of O in Mo-O-Si
was higher, which was beneficial to the AHS process of C3H6, but the
reaction activity of different O substances to the formation of PO was
very low. In order to solve this problem, we established a dimer MoOx
model with defect sites, and found that the defect sites in the dimer
could effectively activate O2 (O2- 2), and the activated material O had
high PO selectivity. Compared with process of AHS and the process of PO
formation, the energy barrier of PO formation path was very low, which
was the main product. At the same time, we also established the MoOx
model of Fe doped dimer and the MoOx model of Fe doped defect dimer. It
was found that the MoOx clusters were more active due to Fe doping, and
the energy barriers of both AHS process and PO formation path were
greatly reduced compared with those before doping. The presence of Fe
made it easier for the dimer MoOx to form defect sites, which made it
easier to activate O2 (O- 2) and reduced the energy barriers of both AHS
and PO formation processes.
Solving nonlinear and non-autonomous ODEs systems by the ADM using a new several-variables Adomian polynomials
Authors: Zaouagui Idriss Noureddine , Badredine Toufik
Published: April 2021

In this work, we adapted another time the Adomian decomposition method for solving nonlinear and non-autonomous ODEs systems. Therefore, our expressions of the Adomian polynomials are determined for a several-variable differential operators. The solution series is shown that it stay coincide with the Taylor series. Thus new conditions of convergence have been established, some systemes has been solved by ADM using Maple 2020. keywords Adomian decomposition method, Adomian polynomials, ODEs systems, initial value problems, several-variables differential operators. Classification 26B12, 34L30, 47E05, 65B10, 65L05, 65L80
Crimean-Congo hemorrhagic fever-induced liver injury: a systematic review and meta-analysis
Authors: Rathore Sawai Singh , Manju Ade Harrison , Wen Qingqing , Sondhi Manush , Pydi Reshma , Haddad Iskander , Hasan Jamal , Ali Muhammad Adnan , Tousif Sohaib , Singh Romil , Muhammed Abdul-Azeez , Ahmed Noman Khurshid , Patel Deep Manojkumar
Published: April 2021

Background: Crimean-Congo hemorrhagic fever (CCHF) is a fatal acute
tick-borne viral infection and a substantial emerging global public
health threat. This illness has a high case fatality rate of up to 40%.
The liver is one of the important target organs of the CCHF virus.
Objective: The aim of this meta-analysis to evaluate the correlation
between CCHF  and liver injury and draw more generalized inferences
about the abnormal serum markers of liver injury such as alanine
aminotransferase (ALT), aspartate aminotransferase (AST) in CCHF
patients. Methods: A literature search was accomplished for published
eligible articles with MEDLINE/PubMed and Embase databases. All eligible
observational studies and case series were included from around the
world. The inclusion criteria were articles describing liver injury
biomarkers AST and ALT amongst patients diagnosed with CCHF. Results:
Data from 18 studies, consisting of 1238 patients with CCHF  were
included in this meta-analysis. The overall pooled prevalence of at
least one raised liver injury biomarker was 77.95% (95% CI, I2
= 88.50%, p < 0.0001). Similarly, pooled prevalence of
elevated AST and ALT was 85.92% (95% CI, I2 = 85.27%,  p <
0.0001) and 64.30% (95% CI, I2 = 88.32%,  p < 0.0001)
respectively.  Both Egger and Begg-Mazumdar’s tests detected no apparent
publication bias in all three meta-analyses(p > 0.05). 
Conclusion: These elevated liver injury biomarkers have been identified
as significant prognostic factors. Hence, Physicians must recognize and
continuously monitor these biomarkers, since these aid early
stratification of prognosis and the prevention of severe outcomes in
infection with such a high case fatality rate.
Catheter Ablation of Accessory Pathways: Can We Do Better by Using Dual Chamber Mapping ?
Authors: Calkins Hugh
Published: April 2021

Catheter Ablation of Accessory Pathways: Can We Do Better by Using Dual
Chamber Mapping ?
Safety and efficacy of thoracoscopic sympathectomy for control of recurrent ventricular tachycardia in patients mainly with Chagas disease.
Authors: Kulchetscki Rodrigo , Alexandre Felipe , Mayrink Marina , Hardy Carina , Melo Sissy de , Chokr Muhieddine , Abdalla Luis , Filho Martino Martinelli , Darrieux Francisco , Pisani Cristiano , Scanavacca Mauricio Ibrahim , Pêgo-Fernandes Paulo
Published: April 2021

Introduction: The autonomous system plays an important role as a trigger
of cardiac arrhythmias. Cardiac sympathetic denervation (CSD) achieved
by stellate and proximal thoracic ganglia resection has been reported as
an alternative approach for the management of ventricular arrhythmias
(VA) in structural heart disease (SHD) patients. Insufficient data
regarding Chagas Disease (ChD) is available. Methods: Patients who
underwent CSD for better management of ventricular arrhythmias (VA) in
SHD, mainly ChD, in a single tertiary center in Brazil were evaluated
for safety and efficacy outcomes. Results: Between June 2014 and March
2020, fourteen patients (age 59±7.5, 85% male, mean ejection fraction
30.5±7.9%) were submitted to left or bilateral CSD. In a median
follow-up time of 143 (Q1: 30; Q3: 374) days, eight patients (57,2%)
presented VT recurrence. A significant reduction in the median burden of
ventricular arrhythmias comparing six months before and after procedure
(10 to 0; p=0.004). For the nine ChD patients, the median burden of
appropriate therapies was also reduced (11 to 0; p=0.008). There were
two cases of clinically relevant pneumothorax and three cases of
transient hemodynamic instability, but no direct procedure-related
deaths occurred. Additionally, there was no long-term adverse events,
Conclusion: CSD is safe and seems to be effective in reducing the burden
of VT/VT storm in SHD patients, including ChD patients. Randomized
trials are needed to clarify its role in the management of these
patients.
Dual Coronary- Cameral Fistula “Double the trouble”
Authors: Kalavakunta Jagadeesh , Sachdev Sarina , Randhawa Mandeep
Published: April 2021

A patient presenting with worsening dyspnea and left-sided chest pain
underwent heart catheterization, found to have a rare connection between
the right and left coronary arteries draining into the left ventricle,
consistent with dual coronary-cameral fistula.
A Case of Difficult-to-Diagnose Non-invasive Papillary Squamous Cell Carcinoma of the Uterine Cervix infected with human papilloma virus 6: A Diagnostic Pitfall
Authors: Sone Kenbun , Inoue Futaba , Taguchi Ayumi , Hinata Munetoshi , Ikemura Masako , Miyamoto Yuichiro , Michihiro Tanikawa , Ohno Tamami , Iriyama Takayuki , Uchino Mayuyo , Tsuruga Tetsushi , Mishima Misako , Osuga Yutaka
Published: April 2021

We encountered a case in which a recurrent condyloma-like papillary
tumor was repeatedly treated as condyloma. Therefore, the patient was
re-diagnosed and treated for non-invasive cervical papillary squamous
cancer (PSCC) with HPV6 infection. To the best of our knowledge, this is
the first report of HPV6 infection in PSCC.
The phytochemical composition and biological activities of different types of extracts of Achillea ageratifolia subsp. serbica
Authors: Radojevic Ivana , Grujovic Mirjana , Comic Ljiljana , Dekic Milan , Djelic Gorica , Mihailovic Nevena
Published: April 2021

Achillea ageratifolia subsp. serbica is a poorly investigated endemic of the
Balkan area and there are almost no data about the potential application of
this plant. The purpose of this study was the investigation of the
phytochemical composition, antioxidant, antimicrobial, and antibiofilm
activity of its water, acetone, and ethyl acetate extracts. The phenolic
composition and flavonoids were established using high-performance liquid
chromatography with photodiode array detection (HPLC-PDA) analysis, while
the chemical composition of the ethyl acetate extracts of the aerial parts
of the plant was investigated by gas chromatography-mass spectrometry (GC
and GC-MS). Antioxidant and antimicrobial activity, as well as the
inhibition ability of biofilm formation on Staphylococcus aureus ATCC 25923
and Pseudomonas aeruginosa ATCC 27853 biofilms, were also investigated. The
total phenolic content ranged from 18.61 mgGAE/g to 43.78 mgGAE/g of
extract. The total flavonoid content ranged from 10.79 mgRUE/g to 34.02
mgRUE/g. The acetone and ethyl acetate extracts of the aerial parts
contained chlorogenic acid, myricetin, apigenin, and luteolin. Analysis of
the volatile specialized metabolites in the ethyl acetate extract of the
aerial parts allowed for the identification of thirty-two constituents. The
highest antioxidant activity was detected in the water extract of the aerial
parts of the plant (IC50 = 641.06 ?g/ml) and in the ethyl acetate extract of
the root (IC50 = 675.33 ?g/ml). Bacillus subtilis and S. aureus showed
higher sensitivity to the tested extracts, while the antifungal activity of
the marked extracts was significant. All extracts showed a moderate
inhibitory effect on the ability of biofilm formation of P. aeruginosa ATCC
27853, while only the ethyl acetate inflorescence extract showed an effect
on the biofilm formation of P. aeruginosa ATCC 27853. The tested extracts
showed the potential for further investigation and possible application as
biofungicides.
A biochemical and proteomic approach to the analysis of tomato mutant fruit growth
Authors: Marjanovic Milena , Jovanovic Zorica , Vucelic-Radovic Biljana , Savic Sladjana , Petrovic Ivana , Stikic Radmila
Published: April 2021

To assess the effects of ABA deficiency on tomato fruit growth, the ABA
mutant flacca was grown in an optimal soil water regime and various analyzes
were performed, including morphological (fruit number, diameter and fruit
biomass), physiological (duration of growth and fruit growth rate),
biochemical (ABA accumulation, enzyme cell wall peroxidase activity) as well
as proteomics. The fruit growth analysis showed that the slower fruit growth
rate and development resulted in smaller flacca fruits in comparison to the
wild-type fruits. The comparison of the temporal dynamics of cell wall
peroxidase activity and ABA content in our experiment indicated an opposite
relationship during fruit development. Proteomic analysis and the
down-regulation of most proteins from carbon and amino acid metabolism, the
translation and processing of proteins, energy metabolism and cell
wall-related metabolism in the flacca fruits compared to the wild type,
indicated reduced metabolic flux which reflected a slower fruit growth and
development and reduced fruit size in the ABA mutant. These findings also
indicated that ABA limited carbon sources, which could be responsible for
the reduced fruit growth and size of ABA-deficient tomato fruits. The
up-regulation of sulfur and oxygen-evolving enhancer proteins in the flacca
fruits implicated the maintenance of photosynthesis in the late expansion
phase, which slows down transition to the ripening stage. The majority of
antioxidative and stress defence proteins were down-regulated in the flacca
fruits, which could be related to the role of ABA in the activity of
different antioxidative enzymes as well as in regulating cell wall expansion
and the cessation of fruit growth.
Alterations in the root proteomes of Brassica napus cultivars under salt stress
Authors: Terzi Hakan , Yıldız Mustafa
Published: April 2021

Soil salinization is an important environmental problem affecting
agricultural production worldwide. Seed germination is a critical process,
and seedling establishment under saline conditions can be achieved by
successful germination. In the present study, comparative proteomics
combined with physiological analyses were used to investigate the protein
alterations in germinating Brassica napus cultivars (Caravel and Sary) under
NaCl stress. Seed germination declined with the increasing NaCl
concentration. However, Caravel exhibited better performance in terms of
seed germination and seedling growth under salinity stress. Therefore,
Caravel was found to be more tolerant to salinity than Sary. The root
proteins were extracted from B. napus cultivars germinating on a plant
growth medium with or without 100 mM NaCl for seven days. After the root
proteins had been separated by two-dimensional (2-D) gel electrophoresis,
the differentially accumulated proteins were identified using MALDI-TOF/TOF
MS. The comparative proteomics analysis revealed 12 and 27 statistically
significant proteins accumulated in the NaCl-treated roots of Caravel and
Sary, respectively. The identified proteins were mostly involved in protein
metabolism, stress defense, cytoskeleton and cell wall metabolism, and
energy metabolism. The salt-sensitive cultivar Sary displayed an elevated
accumulation of proteins involved in antioxidant defense and the protein
catabolic process such as superoxide dismutase [Fe], L-ascorbate peroxidase
1, and different components of the proteasome system. On the other hand, the
levels of molecular chaperones including 20 kDa chaperonin, chaperonin
CPN60, heat shock cognate protein HSC70, and heat shock 70 kDa protein 1
were higher in Caravel than Sary under salt stress. These findings will
provide the possible mechanisms which contribute to salt tolerance and may
serve as the basis for improving salinity tolerance in rapeseed.
The chemical composition and anti-inflammatory effect of the essential oil obtained from Abeliophyllum distichum flowers
Authors: Ju Hyun , Lim Heung , Hyun Tae
Published: April 2021

In the present study, the chemical composition of the essential oil (EO)
obtained from the flowers of Abeliophyllum distichum, commonly known as
white forsythia, was examined by gas chromatography-mass spectrometry
(GC/MS). Thirty-five components including epoxy linalool, methyl salicylate,
linalool oxide (pyranoid), and L-linalool were identified in the EO of A.
distichum flowers (AfEO). In addition, the AfEO exhibited a remarkable
anti-inflammatory effect in lipopolysaccharide (LPS)-stimulated RAW 264.7
cells. We found that this anti-inflammatory effect was mediated by
inhibiting the expression of proinflammatory mediators, including IL-1?,
IL-6, and IL-18. Taken together, these results confirm the potential use of
the AfEO as an anti-inflammatory agent for topical application.
Requirements and Design Consistency: A Bi-directional Traceability and Natural Language Processing Assisted Approach
Authors: Dawood Omer Omer Salih , Sahraoui Abd-El-Kader , Mahmoud Mukhtar M. E. , Babiker Abd-El-Aziz
Published: April 2021

phase in the Software Development Life Cycle (SDLC). The design phase follows it. Traceability is one of the core concepts in software engineering; it is used to follow updates to make consistent items. This paper aimed to cover consistency through bi-directional traceability between requirements and design phase in a semi-automatic way. The Natural Language Processing (NLP) was used to analyze the requirements text and generate a class diagram; then, the generated items can be traced back to requirements. We developed a novel process to support consistency and bi-directional traceability. To ensure our proposed process's practical applicability, we implemented a tool named as Requirements and Design Bi-directional Traceability (RDBT). RDTB receives textual format requirements, performs NLP tasks (Tokenization, Part-of-Speech Tagging, etc.), generates UML class diagram, and finally performs traceability management to ensure consistency of requirements and UML class diagram. The work evaluation reveals good results, which indicates it can be used efficiently as a guide to generate the UML class diagram semi-automatically and manage traceability.
An MICP Algorithm for 3D Map Reconstruction Based on 3D Cloud Information of Landmarks
Authors: Ngo Ba-Viet , Nguyen Thanh-Hai , Vo Duc-Dung
Published: April 2021

This paper aims to reconstruct 3D map based on environmental 3D cloud information of landmarks. A Modified Iterative Closest Point (MICP) algorithm is proposed to apply for merging point clouds through a transformation matrix with values updated using the robot’s position. In particular, reconstruction of 3D map is performed based on the location information of landmarks in an indoor environment. In addition, the transformation matrix obtained using the MICP algorithm will be up-dated again whenever the error among the point clouds is greater than one setup threshold. The result is that the environmental 3D map is reconstructed more accurately compared using the MICP. The experimental results showed that the effectiveness of the proposed method in improving the quality of reconstructing 3D cloud map.
“EU REBOLO ATÉ O CHÃO MESMO!”: vidas precárias e corpos de gênero dissidentes no cotidiano escolar
Authors: Amaro Ivan , Ribeiro Couto Junior Dilton , Rodrigues Ganem Bruno
Published: April 2021

Este artigo, a partir de uma análise do contexto de precariedade das vidas humanas, de suas subjetividades e de um tensionamento entre ofensivas anti-gênero e as dissidências da cisheteronormatividade problematiza como o cotidiano escolar enfrenta este embate a partir de corporalidades em movimentos desviantes. Discursos de ódio parecem ganhar amplo espaço nos últimos anos e nos colocaram num campo de grandes tensões, embates e disputas que atacam coletivos diversos de mulheres, de indígenas, quilombolas e da comunidade LGBTI+. Esse cenário, embora pareça nos arrastar para um quadro distópico pessimista e derrotista, nos mobiliza na busca por outras estratégias de enfrentamento aos discursos de ódio voltados para a desqualificação de determinados grupos de sujeitos. As disputas constroem narrativas distintas, principalmente, quando pensamos em políticas públicas educacionais voltadas para o enfrentamento das diversas discriminações, preconceitos e violências. Este texto apresenta achados de pesquisa que tomam as práticas pedagógicas de combate à violência de gênero e à lgbtfobia no cotidiano de escolas do Rio de Janeiro focalizando a complexidade das violências de gênero, bem como refletindo sobre potentes perspectivas de redução destas. As análises empreendidas sustentam-se principalmente no diálogo com o campo de estudos de gênero e sexualidade sob uma perspectiva pós-crítica. A formação continuada de professoras(es) tem se mostrado potente para produzir efeitos positivos no combate às diversas formas de violência e para construirmos uma sociedade antissexista, antirracista, anti-lgbtfóbica e mais democrática em defesa de direitos para toda(o,e)s.
Etiologies of bloodstream infection and antimicrobial resistance: A cross sectional study among patients in a tertiary hospital, Northern Tanzania
Authors: Mauki Ibrahim Ireneus , William Jesca Deogratias , Mlay Henry Lucas , Saro Adonira Tajaeli , Saringe Samwel Ole , Mkumbaye Sixbert Isdory , Kajeguka Debora Charles
Published: April 2021

Background: Bloodstream infections are important causes of morbidity and mortality in people of all age groups, especially in sub-Saharan Africa. In Tanzania, a recent report indicates that case fatality rate of 37% is attributed to bloodstream infections. The aim of this study was to determine the prevalence and factors associated with bloodstream infections as well as to determine resistance pattern of bacterial isolates among patients visiting Kilimanjaro Christian Medical Centre (KCMC).

Methods: A cross-sectional study was conducted from April to June 2019 at KCMC. A total of 200 patients were included in the study. Blood samples were collected for culture, malaria rapid test, typhoid and brucella tests. Clinical features, co-morbid conditions and patients' hospitalization data were recorded in the questionnaire. Logistic regression was used to examine the factors associated with bloodstream infections. Predictors of the outcome were considered significant at p<0.05.

Results: The prevalence of bloodstream infections was 52(26%). Participants with stomachache had less odds of having bloodstream infections as compared to other patients with symptoms (AOR=0.22, 5.33, 95%CI=0.05-0.97; p=0.04).  Of the XX identified isolates Staphylococcus aureus showed the highest rates of resistance for Meropenem 8(88.8%), Cefotaxime 6(66.6%, Amikacin 6(66.6%), Gentamicin 6(66.6%) and Imipenem 6(66.6%). The lowest level of resistance was observed in Ceftriaxone 1(11.1%).

Conclusion: Bloodstream infections were highly prevalent in this sample (26%). Staphylococcus spp was the most commonly isolated organism and exhibited a high resistance rate to most antibiotics. This calls for increased and coordinated efforts to improve the identification, treatment and management of bloodstream infections and antimicrobial resistance, thereby improving clinical practice.
Hacia una fenomenología de lo inmanentemente invisible
Authors: Giribet Gaston
Published: April 2021

Abordamos el problema de cómo pensar una fenomenología de lo invisible, entendido este término en un sentido fuerte: Se trata aquí de una invisibilidad inmanente, la de la ausencia, la de lo subjuntivo. Investigamos en qué medida está lo invisible relacionado con la ausencia, cómo es tomar consciencia de esa ausencia y proyectar sentido a partir de ella. Nos valemos para esto de avances recientes en el campo de la astrofísica: la “observación” de objetos de la naturaleza que realizan, en efecto, lo inmanentemente invisible; objetos que quedan definidos por la ausencia del mismo espacio-tiempo en el que son.
White space interpretation in Hermann Rorschach’s inkblot test
Authors: Hunca-Bednarska Anna
Published: April 2021

Introduction: The interpretation of white space in the Rorschach test has not been clearly defined. The aim of my research was to analyze the psychological meanings that can be associated with using space in Rorschach test responses. I examined a sample of healthy individuals in order to establish the basic meanings that could serve as points of reference when interpreting ill people’s responses.

Material and method: I personally examined 158 healthy subjects with the Rorschach test. The examination procedure and the way of coding and interpreting responses were based on John Exner’s Comprehensive System. I divided the sample into three groups: I (no S responses), II (one or two S responses), and I II (three or more S responses). Next, I distinguished subgroup V (four or more S responses). I analyzed the differences between the groups in terms of other variables obtained in the examination using the Rorschach test. These variables were associated with using the complexity of the presented stimuli and with organizing the stimulus field; they were also associated with the emotional sphere, social adjustment, and ways of coping with stress.

Results: Group III differed from groups II and I in terms of nine variables, and differences regarding further four variables approached significance. Differences between group V and the remaining examinees were more marked and concerned 14 variables.

Discussion: Examinees with more S responses were better at using the complexity of stimuli and organizing the stimulus field. A certain characteristic feature of their emotional sphere also manifested itself: these people experienced situational stress more strongly, colored their responses with aggression, and more frequently experienced loneliness and alienation; intellectualization turned out to be their typical defense mechanism.

Conclusions: Based on the collected material, it can be concluded that responses are related to examinees’ creative potential. Collected from healthy individuals, the material may facilitate the interpretation of ill people’s responses, especially as such research has not been conducted in a Polish population before.
Parallel regional convergence in Poland before and after EU accession
Authors: Wójcik Piotr
Published: April 2021

The purpose of the study is to analyze the dynamics of regional disparities on NUTS 2 level in Poland for the period 1990–2017 within the framework of sigma convergence. We focus in particular on comparing the patterns of regional convergence before and after EU accession, introducing the methodology of parallel sigma convergence. The results show that the Mazowieckie voivodeship grew much above the average in both the pre- and post-accession periods, while eastern regions lagged behind. EU accession did not have a significant impact on the pattern of internal sigma convergence in Poland. Disparities between regions were increasing at the same pace before and after 2004, despite significant resources having been allocated to cohesion-focused undertakings after EU accession, especially in lagging eastern regions.
The Preparedness Level of Families with Disabilities Children in Facing the Earthquake and Tsunami Disaster in Padang, West Sumatra
Authors: Riviwanto Muchsin , Darwel Darwel , Dwiyanti Defriani , Juanda Juanda
Published: April 2021

Disability groups are groups vulnerable to disaster risk. Most families with disabilities feel worried about defending themselves in the event of a disaster. They are less socialized with disaster mitigation efforts. This research has provided an overview of the preparedness of families with disabilities children in increasing disaster resilience. Analytical research was conducted on families with disabilities children in the city of Padang. Data collection tools in this study used a standard questionnaire from LIPI-UNESCO / ISDR. The data were processed by a computer and analyzed using multiple regression statistical tests. The results showed the preparedness of Families With Disabilities Children in the face of disasters; it was seen that the knowledge category was ready (42.2%), the preparedness plan category was not ready (37.8%), the disaster warning category was not ready (46.7%), the resource mobilization category was not ready, ready (82.2%), the tsunami disaster preparedness index value is 57% (ready category). This research recommended local governments must provide special treatment for people with disabilities by increasing training, seminars, and disaster simulations.