bluuebunny/crossref_metadata_2025 huggingface dataset:
Does one size fit all? The scope and type of error in direct feedback effectiveness
Authors: Kao Chian-Wen
Published: April 2022

This study is an attempt to investigate the scope and type of error in feedback effectiveness. This study consists of two experiments. One was conducted to investigate the feedback effects on a rule-based error type (i.e. subject–verb agreement errors) and the other was conducted to investigate the effects on a lexically-based error type (i.e. verb–noun collocation errors). In addition, the scope of error was investigated in both experiments. In terms of the rule-based error type, results for the immediate posttest writing task showed focused feedback to be effective for the narrowly defined subject–verb agreement errors (i.e. subject–verb agreement involving lexical verbs or copula be). In the delayed posttest writing task, the benefit still persisted for the narrowly defined subject–verb agreement errors. In terms of the lexically-based error type, results for the immediate posttest writing tasks showed focused feedback to be effective for the broadly defined verb–noun collocation errors (three or four collocation errors made and corrected in pretests). In the delayed posttest writing tasks, the benefit still persisted for the broadly defined verb–noun collocation errors broadly defined. These findings suggest that the notion of error type should influence the feedback effectiveness. Theoretical implications regarding the role of notice in the second language acquisition process were discussed based on the results obtained in this study.
Quantitative active super-resolution thermal imaging: The melanoma case study
Authors: Marini Mario , Bouzin Margaux , Scodellaro Riccardo , D’Alfonso Laura , Sironi Laura , Granucci Francesca , Mingozzi Francesca , Chirico Giuseppe , Collini Maddalena
Published: April 2022

Super-resolution image acquisition has turned photo-activated far-infrared thermal imaging into a promising tool for the characterization of biological tissues. By the sub-diffraction localization of sparse temperature increments primed by the sample absorption of modulated focused laser light, the distribution of (endogenous or exogenous) photo-thermal biomarkers can be reconstructed at tunable ∼10−50 μm resolution. We focus here on the theoretical modeling of laser-primed temperature variations and provide the guidelines to convert super-resolved temperature-based images into quantitative maps of the absolute molar concentration of photo-thermal probes. We start from camera-based temperature detection via Stefan–Boltzmann’s law, and elucidate the interplay of the camera point-spread-function and pixelated sensor size with the excitation beam waist in defining the amplitude of the measured temperature variations. This can be accomplished by the numerical solution of the three-dimensional heat equation in the presence of modulated laser illumination on the sample, which is characterized in terms of thermal diffusivity, conductivity, thickness, and concentration of photo-thermal species. We apply our data-analysis protocol to murine B16 melanoma biopsies, where melanin is mapped and quantified in label-free configuration at sub-diffraction 40 µm resolution. Our results, validated by an unsupervised machine-learning analysis of hematoxylin-and-eosin images of the same sections, suggest potential impact of super-resolved thermography in complementing standard histopathological analyses of melanocytic lesions.
No association between LDL receptor and CETP genetic variants and atorvastatin response in Jordanian hyperlipidemic patients
Authors: Zihlif Malek , Otoum Suhad , Al Shhab Mohammad , Almadani Zaid , Momani Monther , Alhawari Hussam , Esraa jibrini  , Jarrar Yazun , Al-ameer Hamzeh , Imraish Amer
Published: April 2022

Objectives

Atorvastatin is commonly used medication to achieve low levels of low-density lipoproteins (LDL). Cholesteryl ester transfer protein (CETP) and LDL receptor (LDLR) genetic variants can affect the cholesterol transport and hence may affect on atorvastatin response. This study aimed to investigate the influence of LDLR AvaII, CETP TaqIb, and Rs1532624 on the efficacy of 20 mg atorvastatin among Jordanian hyperlipidemic patients.

Methods

One hundred and 50 blood samples were collected from hyperlipidemic patients in the University of Jordan Hospital. Polymerase chain reaction-restriction fragment length polymorphism was used for genotyping of LDLR AvaII and CETP TaqIb genetic variants. The genotyping of CETP Rs1532624 variant was done by Sanger DNA-Sequencing.

Results

LDLR AvaII and CETP TaqIb and Rs1532624 variants showed a significant (p value < 0.05) association with the baseline of the LDL at the time of diagnoses. On the other hand, none of the tested genetic variants showed a significant (p value>0.05) association with LDL reduction after atorvastatin therapy.

Conclusions

Results demonstrated a significant association between the LDLR AvaII and CETP TaqIb, and Rs1532624 genetic variants with the LDL baseline level. However, the atorvastatin therapy among hyperlipidemic patients of Jordanian origin was not affected by any of the tested variants.
Metastable phase diagram of the Gd2O3–SrO–CoO
x
ternary system
Authors: He Liming , Qin Nailing , Wei Jinxing , Li Mei , Song Yujuan , Yan Jialin
Published: April 2022

The metastable phase diagram of the Gd2O3–SrO–CoO
x
system in air was established based on the powder X-ray diffraction results of the 1100 °C-synthesized and then furnace-cooled or slowly-cooled (1 K min−1) samples. It consists of two solid solutions, Gd1−x
Sr
x
CoO3−δ
(0.6 ≤ x ≤ 0.9) with a tetragonal I4/mmm superstructure and Gd
x
Sr2−x
CoO4−δ
(0.5 ≤ x ≤ 1.2) with a layered tetragonal I4/mmm K2NiF4-type structure, and one ternary compound Gd2SrCo2O7 with a tetragonal P42/mnm structure. The existence of six binary oxide compounds Gd2SrO4, GdCoO3, Sr2Co2O5 (R), Sr6Co5O15, Sr5Co4O12 and Sr14Co11O33 was confirmed. This metastable phase diagram is of technological interest in the controlled preparation of single-phase complex oxides. New phases Gd0.375Sr2.625Co2O7−δ
and τ4 with an orthorhombic Immm structure were found in the quenched samples. Differences between the present metastable phase diagram and the reported 1100 °C equilibrium one are discussed.
A longitudinal study of topic continuity in Chinese EFL learners’ written narratives
Authors: Liu Yan , Cai Jinting
Published: April 2022

This paper reports a longitudinal study of topic continuity in Chinese EFL learners’ English written narratives by tracking their dynamic change of referential choices over two years. The proportional distribution of referential forms were calculated and texts produced by learners were analyzed. The calculation and analysis yielded the following findings. Firstly, while the general distribution of referential forms follows Givón’s cross-linguistic topic continuity scale, indicating the dominant role of discourse context in referring, quite a few instances deviate from this scale, suggesting the modulating effect of multiple factors, including L1 influence and articulators’ cognitive pressure. Secondly, with an increase in English exposure, L2 learners’ use of the typical referring form in each context displayed an increasing tendency over time. Finally, the developmental paths of L2 referential choices exhibited individual variability. These findings pointed to variation in interlanguage and the modulating effect of non-linguistic or internal cognitive factors on reference production.
The relationship between metrical, syntactic, and rhetorical structure in the Rigveda: the gāyatrī stanza
Authors: Klein Jared S.
Published: April 2022

It is often said, independently of any linguistic evidence, that the refusal of the redactors of the Rigveda text to allow sandhi between the second and third eight-syllable verses (pādas) of the three-line Rigvedic gāyatrī stanza is based on their parallel convention in the cases of the four-line triṣṭubh and anuṣṭubh stanzas, where the first two lines predominantly serve as an independent discourse unit (distich) relative to the last two. This paper attempts to provide independent linguistic evidence for the redactors’ treatment of the gāyatrī line by examining the syntactic and rhetorical structures of the first 300 gāyatrī stanzas in the Rigveda. The results show that nearly 60% of these show a clear syntactic and/or rhetorical break at the end of the second verse, whereas fewer than 19% show such a boundary following the first verse. While this does not prove that the redactors’ procedure was based on syntactic-rhetorical structure alone, it is maintained that the redactors could not have been unaware of the preponderance of a linguistic break following the second verse of the gāyatrī and that, even if they were influenced by their treatment of the distich boundary in four-line stanzas, their procedure was not simply a matter of analogical extension independent of linguistic considerations.
Introduction to the Special Issue on Lakatos’ Undone Work
Authors: Nagler Sophie , Pillin Hannah , Sarikaya Deniz
Published: April 2022

We give an overview of Lakatos’ life, his philosophy of mathematics and science, as well as of this issue. Firstly, we briefly delineate Lakatos’ key contributions to philosophy: his anti-formalist philosophy of mathematics, and his methodology of scientific research programmes in the philosophy of science. Secondly, we outline the themes and structure of the masterclass Lakatos’ Undone Work – The Practical Turn and the Division of Philosophy of Mathematics and Philosophy of Science​, which gave rise to this special issue. Lastly, we provide a summary of the contributions to this issue.
First record of East Asian tailless leaf-nosed bat (Coelops frithii) from Nepal and extension of its global range
Authors: Dahal Dibya Raj , Thapa Sanjan , Baral Suraj , Thapa Tej Bahadur , Singh Nanda Bahadur
Published: April 2022

We captured a male individual of Coelops frithii during a cave survey in the Makawanpur District of central Nepal on March 3, 2021. A colony with 15 individuals of this species was found roosting in a narrow and moist cavity of the Sarasawati cave situated in Raksirang Rural Municipality. The species was identified by its small size and characteristic funnel shaped ears with large antitragus at the base of posterior end of ear pinna and externally invisible and nodular tail. This is the first record of the genus Coelops for Nepal and western most record of the species.
Dynamical behaviors of a k-order fuzzy difference equation
Authors: Han Caihong , Li Lue , Su Guangwang , Sun Taixiang
Published: April 2022

Difference equations are often used to create discrete mathematical models. In this paper, we mainly study the dynamical behaviors of positive solutions of a nonlinear fuzzy difference equation:

x

n
+
1

=

x

n

A
+
B

x

n
−
k

(

n
=
0
,
1
,
2
,

…

)

,

{x}_{n+1}=\frac{{x}_{n}}{A+B{x}_{n-k}}\hspace{0.33em}\left(n=0,1,2,\ldots ),

where parameters

A
,
B

A,B

and initial value

x

−
k

,

x

−
k
+
1

,

…

,

x

−
1

,

x

0

{x}_{-k},{x}_{-k+1},\ldots ,{x}_{-1},{x}_{0}

,

k
∈

{

0
,
1
,

…

}

k\in \{0,1,\ldots \}

are positive fuzzy numbers. We investigate the existence, boundedness, convergence, and asymptotic stability of the positive solutions of the fuzzy difference equation. At last, we give numerical examples to intuitively reflect the global behavior. The conclusion of the global stability of this paper can be applied directly to production practice.
The quest for magic: recent advances in C(sp3)–H methylation
Authors: Feng Kaibo
Published: April 2022

Frequently referred to as the “magic methyl” effect, the introduction of a methyl group into a biologically active molecule has the potential to drastically alter its physical and biological properties and significantly increase potency. This effect is most pronounced when the methyl group is added at the α-position of an aliphatic heterocycle or ortho to a large rotatable group on an aromatic ring. Although seminal developments in C–H activation strategies offered solutions to the latter, until recent years there had been no selective and functional-group-tolerant method for C(sp3)–H methylation at late stages of synthesis. For many years, the lack of a generally applicable methylation strategy necessitated arduous de novo synthesis approaches to access methylated drug candidates, and discouraged further investigation and understandings of the magic methyl effect. This review will provide a summary of the most recent advances that enabled non-directed late-stage C(sp3)–H methylation, including through hydride transfer, chemical or anodic oxidation, and photocatalytic hydrogen atom transfer.
Synergistic effect of organic-Zn(H2PO2)2 and lithium containing polyhedral oligomeric phenyl silse-squioxane on flame-retardant, thermal and mechanical properties of poly(ethylene terephthalate)
Authors: Yan Xiaofei , Zhao Zhikui , Fang Jie , Li Jiawei , Qi Dongming
Published: April 2022

A novel synergy flame retardant system of poly(ethylene terephthalate) (PET)/organic-Zn(H2PO2)2/lithium containing polyhedral oligoheptyl silse-squioxane (Li-Ph-POSS) composites was prepared by the melt-blending method to improve the flame retardancy of PET. The synergistic effect of organic-Zn(H2PO2)2 and Li-Ph-POSS on the flame retardancy, thermal, and mechanical properties of the PET composites was investigated by the limiting oxygen index, vertical burning test, cone calorimeter, thermogravimetric analysis, differential scanning calorimeter, tensile tester, and dynamic mechanical analysis, respectively. The results show that the synergistic flame retardant effect between organic-Zn(H2PO2)2 and Li-Ph-POSS improves both the flame retardancy and the crystallization of PET. Moreover, the Li-Ph-POSS has a positive effect on the mechanical property of PET. This work provides a promising strategy for mitigating the fire hazard of PET using this synergy flame retardant system.
An overview of nuclear data standardisation work for accelerator-based production of medical radionuclides in Pakistan
Authors: Hussain Mazhar , Ali Waris , Amjed Nouman , Wajid Abdul M. , Aslam Muhammad N.
Published: April 2022

The standardisation of nuclear reaction cross section data is an integral part of optimisation of production routes of medical radionuclides. The production cross sections are available for the reactor and cyclotron produced radionuclides to be used for diagnostics or therapeutic procedures. The types of nuclear data needed, and the sources of their availability are summarized. The method of standardisation of charged-particle data is briefly described. A historical overview of research work in Pakistan in this direction is given. Examples of a few medically important radionuclides, such as 64Cu, 86Y, 89Zr, 103Pd, 186Re, etc., whose data were standardised and evaluated are highlighted. Calculated thick target yields from the recommended data are given. Some new directions in the nuclear data research are outlined.
A summary of environmental radioactivity research studies by members of the Japan Society of Nuclear and Radiochemical Sciences
Authors: Igarashi Yasuhito , Tagami Keiko , Takamiya Koichi , Shinohara Atsushi
Published: April 2022

Many scientists who are members of the Japan Society of Nuclear and Radiochemical Sciences have been involved in academic activities in response to the Fukushima Daiichi Nuclear Power Plant accident. Projects had been implemented that include determining radionuclides in environmental samples, identifying the distribution of radionuclides by large-scale soil monitoring, tracing radionuclide discharge time series, clarifying environmental dynamics of radionuclides, etc. For the last 10 years, these results have been shared and discussed in annual workshops partly sponsored by the society. This review summarizes the studies yielding these results, and they include reconstruction of the 131I distribution on soil by long-lived 129I analysis, reconstruction of the radioactive plume transport, identification of biological resuspension sources, discovery and characterization of cesium particles, and parameterization of the environmental behavior of radiocesium for dose assessment.
The role of natural disasters in the semiotic transformations of culture: the case of the volcanic eruptions of Mt. Merapi, Indonesia
Authors: Nazaruddin Muzayin
Published: April 2022

This study examines the entanglements of natural disasters and cultural changes from an ecosemiotic point of view. Taking the case of Mt. Merapi’s periodic eruptions and the locals’ interpretations of such constant natural hazards, it is based on empirical data gathered through longitudinal qualitative fieldworks on the local communities surrounding this volcano. In order to adapt to the constant natural hazards in their environment, disaster prone societies develop unique sign systems binding cultural and natural processes. This study shows that traditionally, unique sensorial-environmental sign systems have formed the basis of communication between human and environment, allowing the locals to perceive the eruption as a communication involving them and local environmental agencies. Recently, the eruptions have triggered the adoption of new livelihoods of local people, as well as the acceptance of new scientific signs for the interpretation of the activities of the volcano. The latter has been accompanied by significant cultural changes, including the adoption of the idea of progress and the transformation of the previous entanglements of local culture and its natural environment. The study concludes that natural disasters, entangled with ongoing social transformations, may play a fundamental role as triggers of semiotic change in a community. Such semiotic change can in turn modify the interpretation of the natural disaster itself, and in that way shift the way humans perceive and interact with their environment.
The Effect of a Heavy Resisted Sled-Pull Mesocycle on Sprint Performance in Junior Australian Football Players
Authors: Edwards Toby , Piggott Benjamin , Banyard Harry G. , Haff G. Gregory , Joyce Christopher
Published: April 2022

Edwards, T, Piggott, B, Banyard, HG, Haff, GG, and Joyce, C. The effect of a heavy resisted sled-pull mesocycle on sprint performance in junior Australian football players. J Strength Cond Res 37(2): 388–393, 2023—This study assessed the effect of heavy resisted sled-pull training on sprint times and force, velocity, and power characteristics in junior Australian football players. Twenty-six athletes completed a 6-week resisted sled-pull training intervention which included 10 training sessions and 1-week taper. Instantaneous velocity during 2 maximal 30 m sprints was recorded 1 week before and 1 week after the intervention with a radar gun. Velocity-time data were used to derive sprint performance and force, velocity, and power characteristics. A paired t-test assessed the within-group differences between preintervention and postintervention testing. Statistical significance was accepted at p ≤ 0.05. Hedges' g effect sizes (ESs) were used to determine the magnitude of change in dependent variables. Maximum velocity (ES = 1.33) and sprint times at all distances (ES range 0.80–1.41) significantly improved after heavy resisted sled-pull training. This was reflected in sprint force, velocity, and power characteristics with significant improvements in relative theoretical force (ES = 0.63), theoretical velocity (ES = 0.99), relative maximum power (ES = 1.04), and ratio of horizontal to vertical force (ES = 0.99). Despite the multifactorial nature of training and competing physical demands associated with preseason training, these findings imply that a short, resisted sled-pull training mesocycle may improve sprint performance and underlying force, velocity, and power characteristics in junior athletes.
Pedagogical culture: The value-semantic context of digital transformation of education
Authors:   Novosibirsk State Pedagogical University, Shulga Irina Ivanovna
Published: April 2022

The purpose of the article is to determine the value-semantic teaching guidelines taking into account changes caused by the digital transformation of education. Humanistic foundations of education in current conditions proposed by the author as a result of the scientific and theoretical analysis are as follows: (1) pedagogical culture is a meaningful part of the educational system, (2) the architecture of relations between the stages of educational activity has changed, (3) pedagogical culture is a component of teaching proficiency in the digital world. All these aspects make up the considerations that should be taken into account when evaluating options to improve an educational system.
Logistic approach in the management of an educational organization
Authors:   Novosibirsk State Pedagogical University, Kohan Natalya Vladimirovna , Starshinin Alexander Vladimirovich ,   State budgetary educational institutionsecondary school No. 619
Published: April 2022

The article considers the possibility of using a logistic approach in the management of an educational organization. To ensure optimal management conditions, the importance of taking into account the flows, which are formed in the course of the activities of an educational organization, is shown: material, information, personnel, educational, financial. The purpose of the publication is to substantiate the necessity and possibility of using a logistics approach in the operational and strategic management of an educational organization. The main idea is to reveal the relationship between logistics and innovation in the educational management system through the characterization of principles, functional areas and types of flows in an educational organization. The use of a logistic approach can improve the efficiency of managing an educational organization. Topical issues of using the logistics approach in the management of an educational organization presented in the context of definitions of key concepts and functional areas. The components and sequence of using educational logistics in management, the semantic variety of definitions of the concept of «educational logistics» are analyzed. A comparative analysis of methodological ideas regarding the application of the logistic approach in the management of an educational organization are presented. A description of the logistics system and flows associated with resources in an educational organization is given. The specifics and advantages of using the logistics approach in the management of an educational organization revealed.
Opportunities for the development of communication skills in preschoolers by means of art in an inclusive education
Authors:   Novosibirsk State Pedagogical University, Ryapisova Alevtina Gennadievna , Alexandrova Marina Vladimirovna ,   Novosibirsk State Pedagogical University
Published: April 2022

The article presents the main results of the research work devoted to the description of the activity of a teacher-psychologist of an inclusive preschool educational organization. The combination of scientific and theoretical substantiation and empirical research allowed us to reveal the resources of various types of art for the formation of communication skills in preschoolers in an inclusive practice. The psychological and pedagogical possibilities of using a poly-artistic approach, art therapy resources and other methods and techniques are characterized. The results of a diagnostic study of the levels of formation of communication skills in older preschool children in a group of combined orientation, in which half of preschoolers have severe speech disorders, are presented. A project of activity of a teacher-psychologist for the development of children’s communication skills by means of art in an inclusive education is proposed, including a description of the thematic content, forms and methods of work. In the course of the study, it is proved that a teacher-psychologist will be able to successfully carry out work on the development of communication skills in older preschoolers (including those with speech disorders) if conditions for genuine inclusion are created in a preschool educational organization, team cooperation of specialists is implemented and the developing potential of various types of art is correctly used.
Comparación de guadua angustifolia kunth expuesta a agentes atmosféricos, protegida y sin protección, mediante inspección visual y microscopía
Authors: Patiño León Liliana Rocío , Martínez Forero Manuel Fernando , Barreto Walter Mauricio
Published: April 2022

En este estudio experimental, se analiza el deterioro de la guadua frente a la exposición directa a agentes atmosféricos, (radiación solar, lluvia, viento y cambios de temperatura ambiente) para evaluar el comportamiento de tratamientos de protección, mediante un análisis comparativo de elementos expuestos protegidos y sin protección en idénticas condiciones. Se desarrolló una estructura en guadua angustifolia kunth en la cual se incluyeron diferentes ángulos en los elementos y sobre algunos de estos se aplicó una película protectora de lasur con varias preparaciones previas de la superficie.

Se expuso el ensayo a la intemperie durante 11 meses, durante los cuales se realizó seguimiento al deterioro de la estructura mediante la inspección visual y documentación fotográfica en forma periódica. Posteriormente, se tomaron muestras de los elementos expuestos para ser analizados bajo microscopio de barrido electrónico.

Se pudo identificar como lesión primaria la foto-degradación, evidente en los elementos con y sin protección, presentando más impacto en los elementos horizontales, que reciben mayor radiación solar. Derivadas de la foto-degradación, se encontraron otras lesiones secundarias, como la presencia de fisuras y grietas, las cuales comprometen la superficie del material y permiten la aparición de agentes bióticos en las guaduas.

Las superficies no expuestas directamente a la radiación solar no presentaron afectaciones significativas, por lo que se concluyó que el principal aspecto frente al que se debe proteger la guadua es la radiación solar directa y que los procedimientos de protección aplicados no ofrecen un buen desempeño real frente a las condiciones del ensayo, planteando la necesidad de buscar alternativas eficientes frente a esta condición.
Análisis descriptivo sobre la incidencia del cabello humano en las plantas
Authors: Forero Bustamante Santiago , Becerra Cano Johann Andrey , Zamudio García Valentina , Rodríguez Patiño Laura Liliana
Published: April 2022

El cabello humano, aunque es considerado un residuo no peligroso y de carácter sanitario, tiene una composición fundamental para el enriquecimiento de la tierra y para la nutrición de las plantas. Por ello, este artículo tiene como principales objetivos explicar, desarrollar y definir a partir de variables cuantitativas las incidencias que tiene el cabello humano en las plantas con base en un informe previamente generado. Además, se propone una solución para evitar el desperdicio de este recurso, convirtiéndolo en abono orgánico y aprovechando los residuos generados en diferentes establecimientos de belleza, con la finalidad de evitar daños en el medio ambiente a la hora de incinerar dicho material e impulsando la suplantación de diferentes abonos o fertilizantes químicos industriales, que en su mayoría conllevan repercusiones y daños en un ecosistema.
Incorporación de un software educativo como estrategia pedagógica para la enseñanza de la lógica computacional
Authors: Quintero Monsalve Edwin , Silva Monsalve Alexandra María
Published: April 2022

Las dificultades en el diseño y construcción de algoritmos computacionales en los estudiantes y su efecto en el bajo rendimiento académico originaron el proyecto de investigación que dio vida a este artículo. En la investigación, se propuso como objetivo la implementación de una estrategia pedagógica apoyada en el Software educativo App Inventor para el mejoramiento de la lógica computacional en la implementación de algoritmos con los estudiantes del Técnico en Análisis y Desarrollo de Sistemas en Tulua,Valle del Cauca. Metodológicamente, se desarrolló una investigación de tipo cuantitativo descriptivo. Inicialmente, se aplicó una prueba diagnóstica inicial con el fin de recolectar datos y realizar un análisis; posteriormente, se diseñaron sesiones de trabajo con el apoyo del software App Inventor, para luego, finalmente, aplicar una prueba final. La propuesta pedagógica se orientó desde los principios del constructivismo, generando estrategias de aprendizaje significativo. Los resultados reflejaron un aporte satisfactorio al proceso de enseñanza-aprendizaje de los estudiantes, lo que les permitió construir su propio conocimiento y alcanzar un aprendizaje significativo. Por otra parte, el desempeño de los estudiantes en las clases evidenció su interés por el aprendizaje y la actitud crítica frente a la resolución de las diferentes actividades propuestas.
La andragogía y las tecnologías de información y comunicación (TIC)
Authors: Latorre Barragán Carlos Fernando
Published: April 2022

Este artículo es el resultado del recorrido de una investigación por libros, revistas y diversos documentos relacionados con el aprendizaje en los adultos y tiene como fin presentar un panorama general de los principales aportes de la andragogía a la enseñanza y de sus principios y características. También, espera señalar aquellos aspectos estructurales y didácticos que la diferencian de la pedagogía. Igualmente, el texto pretende mostrar cómo las tecnologías de la información y la comunicación (TIC) son valiosos recursos para el proceso educativo andragógico, ya que a través de sus medios y herramientas se pueden desarrollar entornos de aprendizaje ajustados a las necesidades psicosociales, las condiciones y los estilos cognitivos del estudiante adulto.
Estado del arte en la construcción de un modelo de gestión y transmisión del conocimiento
Authors: Camacho Vásquez Gonzalo , Gómez Torres Nancy
Published: April 2022

El artículo presenta un estado del arte en el diseño de un modelo de gestión y transmisión del conocimiento (GTC), para la Facultad de Ciencias de la Educación de la Universidad del Tolima (FCE-UT), mediante el análisis de antecedentes y una aproximación metodológica que explica la incorporación de métodos de investigación en el diseño; así como, nociones que se consideran pertinentes después del estudio y apropiación de la teoría. Se define la investigación a través del diseño, como lineamiento principal en la construcción del modelo, mediante el uso de sus etapas de análisis, proyección y síntesis, a las cuales se incorporan otras metodologías que permiten la consecución del propósito de investigación. El discernimiento en el ejercicio de escritura permite vislumbrar posibilidades en el abordaje de la gestión y transmisión del conocimiento con respecto al currículo y la delimitación de las variables en estudio, en un giro de la pregunta inicial.
Paslėptųjų Markovo Modelių tyrimas ir taikymas daugiamačių sekų palaipsnei analizei
Authors:   , Vaičiulytė Jūratė
Published: April 2022

Study and application of hidden Markov models to online analysis of multivariate sequence data
Netiesinės optikos metodai itin trumpiems impulsams infraraudonojoje srityje generuoti
Authors:   , Budriūnas Rimantas
Published: April 2022

Nonlinear optical methods for generation of ultra-short infrared pulses
Leiomyosarcoma for the purpose of a case
Authors: Aldama Yanet fermin , Rodríguez-Villán César , Gonzalez-Lopez Laura , Dickter-Sarfati Dr. Cynthia , Serratos-Garduño Dr. José Eduardo , Martinez-Gonzalez Fernando , Hernandez-Guevara Ulises Manuel , Karla Estela Abundiz Bibiano
Published: April 2022

Sarcomas of the uterus are a group of tumors that make up 1% of neoplasms of the female genital tract.1 The global incidence is 0.5 to 3.3 cases per 100,000 women per year 1 the rarity of this tumor, and its histological diversity, contributes to the lack of consensus on diagnostic behavior and timely treatment.1 The incidence increases in ages over 40years, tied to other risk factors.1 The preoperative diagnosis is a challenge, since the clinical presentation is variable, it frequently presents with transvaginal bleeding and a rapid increase in the size of the uterus,2 accompanied by symptoms of pelvic pressure, anemic syndrome stands out in these women in different degrees.2 however there are high frequency pathologies that share clinical characteristics that direct the diagnosis and is easily confused with benign leiomyoma and adenomyosis3 The objective of this presentation of the case is to take into account as a differential diagnosis in abnormal uterine bleeding and constitutional syndrome,2 due to the rarity of this tumor, only some articles of review and report of cases have been published.3
Efecto de la suplementación con ácidos orgánicos y aceites esenciales en la productividad de cerdas
Authors: Alvarado-Núñez Jorge Arturo , Hernández-Agüero Michael , Rodríguez-Campos Luis Alejandro
Published: April 2022

El uso de mezclas de ácidos orgánicos y aceites esenciales (AO+AE) se proponen como una alternativa a los antibióticos promotores de crecimiento. El objetivo del presente trabajo fue evaluar el efecto de la suplementación con un compuesto comercial de AE+AO en los parámetros de productividad en cerdas lactantes y sus lechones en el trópico seco costarricense. Para ello, 42 cerdas agrupadas en tres períodos de evaluación y siete grupos de parición fueron asignadas a dos tratamientos, Control y Tratado (2 kg/ton de AE+AO). Las variables evaluadas en las cerdas fueron el peso antes del parto y después del destete, la grasa dorsal antes y después del parto, días abiertos, consumo, duración de la gestación y la tasa de preñez de las cerdas. En la camada se comparó el peso al nacimiento, peso al destete, número de lechones nacidos vivos, nacidos muertos, momias y muertos en destete. No se encontró diferencias significativas entre los tratamientos evaluados para ninguna de las variables (p>0.05), no obstante, se observaron tendencias (p<0.1) en la diferencia en nacidos totales (Control: 11,6; Tratado: 13,7) y momias (Control: 0,3; Tratado: 0,8). La composición del suplemento utilizado y la falta de reto patogénico pueden ser las causas detrás de la falta de diferencias observadas. En conclusión, la suplementación con AE+AO no tuvo efecto sobre la productividad de cerdas.
Consumo y venta del huevo de codorniz en Costa Rica
Authors: Zamora-Sanabria Rebeca , Chacón-Villalobos Alejandro
Published: April 2022

El sector coturnicultor costarricense está en proceso de desarrollo; aún no se han documentado en la literatura aspectos productivos, económicos, de mercado o comercialización asociados al mismo. El objetivo de este trabajo es generar información sobre la comercialización y el consumo del huevo de codorniz en Costa Rica. La investigación tuvo lugar entre enero y diciembre del 2019 en la Gran Área Metropolitana costarricense. Se realizaron consultas a 14 productores con respecto al entorno comercial, a la vez que se evaluaron las pautas de consumo de huevo de codorniz en una muestra de 300 personas. La mayoría de los productores (10) se dedican a la producción exclusiva de huevo en sistemas productivos que mayoritariamente no superan las 200 aves (11), principalmente alojadas en jaulas artesanales (10), y donde el uso de registros productivos no se ha implementado (11). Se emplea esencialmente alimento para gallinas de producción(13), sin distinción de la etapa productiva del ave (11), sin un manejo reproductivo en seis de los casos o bien empleando cruces consanguíneos (5). El huevo se comercializa principalmente en empaques de 24 huevos ($2,42 por empaque) y en conservas de 200 g ($2,5). En términos de compra, la mayoría de los consumidores expresó no adquirir el huevo de codorniz (74%), siendo el consumo esporádico aún entre quienes si lo obtienen (51,4% una vez al mes). La presentación preferida de compra es el huevo fresco empacado (46,8%), que es preparado principalmente como huevo duro hervido (66,2%). La producción y consumo de huevo de codorniz en Costa Rica se encuentra poco tecnificada y diversificada lo cual concuerda con un perfil de productores pequeños y un bajo consumo.
Respuesta productiva de corderos suplementados con oleaginosas en condiciones de Caribe Húmedo colombiano
Authors: Mestra-Vargas Lorena Inés , Santana-Rodriguez Marta Oliva , Aguayo-Ulloa Lorena Angelica
Published: April 2022

El objetivo del presente estudio fue evaluar el efecto de la suplementación con subproductos agroindustriales derivados de oleaginosas (SO) sobre la respuesta productiva de corderos mestizos. El estudio se realizó entre marzo y julio del 2018 en la unidad productiva de ovinos localizada en el municipio de Planeta Rica, Subregión del San Jorge del departamento de Córdoba, Colombia. Dieciséis corderos con peso inicial de 16,5±3,0 kg y 8-10 meses de edad, fueron aleatoriamente asignados en dos grupos (n=8) de tratamientos nutricionales; T1= dieta basal (forraje y sal mineralizada); y T2= dieta basal (forraje, sal mineralizada, y SO). En los animales se evaluó la ganancia media diaria de peso (GDP), condición corporal final (CCF), peso final (PF), consumo de nutrientes diarios (CND) digestibilidad (D), índice corporal (ICorp) y calidad de la canal; peso al sacrificio (PS), peso de canal caliente (PCC), peso de la canal fría (PCF), rendimiento de la canal caliente (RCC) y canal fría (RCF), longitud de canal (LC), perímetro de pierna (PP) e índice de compacidad (IC). Todas las variables evaluadas en animales y sus canales fueron superiores (p<0.05) en T2, los cuales obtuvieron una GDP (p=0.0006), CCF (p=0.001), PF (p=0.03), CDN (p=0.001) DN (p=0.004), ICorp (p=0.0008), incrementado en un 66,3%; 30,3%; 23,3%; 46,8% y 3,4 puntos porcentuales (pp), respectivamente. En canales, del T2 se obtuvieron valores (p<0.05) de PS, PCC, PCF, RCC, RCF, LC, PP e IC superiores en 5,9 kg; 3,34 kg; 3,2 kg; 2,44 pp; 3,07 pp; 5,7 cm; 2,5 cm y 0,035 kg/cm2, respectivamente. Los niveles de suplementación con SO incrementaron la productividad y los indicadores de calidad de canal en corderos mestizos, convirtiéndose en una opción de alimentación contundente para mejorar el desempeño productivo en ovinos de pelo del trópico bajo colombiano.
NATURAL RESOURCE POTENTIAL - BASIS FOR DEVELOPMENT OF THE BIOECONOMY, RELATED TO CONVENTIONAL AND ORGANIC FARMING IN BULGARIA
Authors: Toteva D. , Popov R. , Marinov P.
Published: April 2022

The lithosphere is the solid foundation formed during the formation of our planet. Natural resources have been formed in its layers, which directly influence the Socio-economic development of human civilization during different time periods. The natural complex of Bulgaria is formed by three basic components: natural environment, natural resources and natural conditions. They take part in one way or another in the formation and development of economic, economic and environmental territorial structural units at the local level.
Unlike the classical branch economy - Bioeconomy could form and analyze its synergetic models based on ecological attitude to all economic activities of the landscape such as: extraction of mineral and forest resources, tillage, extraction of non-metallic minerals (low carbon), mineral waters, processing of waste for secondary industrial use and other economic activities.
The aim of the present study is to study the natural resource potential on the territory of Bulgaria and to analyze the existing opportunities for development of the bioeconomy. To compare and analyze the relationship between conventional and bio culture crops in ha. on the territory of the country, the possibility for their practical application in the systems of the circular economy.
THE ROLE OF AGRICULTURAL BIOMASS IN THE FUTURE BIOECONOMY
Authors: Beluhova-Uzunova R. , Shishkova M. , Ivanova B.
Published: April 2022

The European Commission presented the 2018 Bioeconomy strategy, which developed an action plan for a resource-efficient, competitive and sustainable economy. The bioeconomy sectors are also linked to the European Green Deal, Stepping up Europe’s 2030 climate ambition Communication, Farm to Folk Strategy and other innovation strategies. In the transition to a low carbon world, biomass plays a crucial role as an alternative to fossil resources. In the EU, agriculture is the main source of biomass with 68% of the total supply. The paper analyses European Union agricultural biomass potential, supply and use. Agricultural biomass is part of the core bioeconomy sectors and its demand is increasing. However, the potential of biomass and its alternative uses are a major concern. Biomass is a renewable but limited resource and, on that basis, it is important to outline the balance and to pay attention to the relationship between the nutritional and industrial needs of biomass in terms of food and energy security. The policy framework in this regard has to be complex and well-targeted. The biomass use could lead to a number of benefits associated with resolving global issues. On the other hand, if sustainability is not taken into account, the opportunities for inclusive growth and development will not be achieved.
SHORT FOOD SUPPLY CHAINS IN BULGARIA – SUSTAINABILITY AND DISRUPTIONS
Authors: Aleksiev G. , Petrova N.
Published: April 2022

Short food supply chains have the potential of improving local food production and provide the population with high quality fresh food. The sustainability of these chains has come under question last year (2020) due to the disruption caused by the pandemic and the lack of preparation for it.
The goal of this study is to analyze the sustainability of short food supply chains in Bulgaria and identify the main sources for their disruptions.
In order to achieve this goal, the following tasks must be solved: to analyze the state of short food supply chains in Bulgaria; to evaluate the level of sustainability of these chains, and to discover and present the main sources for disruptions of short food supply chains in Bulgaria.
Tips for improving consistency of thyroid nodule interpretation with ACR TI-RADS
Authors: Low Gavin , Bara Meredith , Du Yang , Katlariwala Prayash , Croutze Roger , Resch Katrin , Porter Jonathan , Sam Medica , Wilson Mitchell
Published: April 2022

Thyroid nodules are very common in the general population. Most are benign and even those that are malignant are typically slow-growing and do not require treatment. Overdiagnosis and overtreatment of thyroid nodules has resulted in significant healthcare costs. ACR TI-RADS was developed to address these concerns, and reduce the number of unnecessary biopsies and follow-up intervals. ACR TI-RADS offers a point-based risk stratification system centered on five sonographic features: consistency, echogenicity, shape, margins and echogenic foci. While the system has noticeable benefits and comparable accuracy with other available risk stratification systems (ATA, EU-TIRADS and K-TIRADS), there are inherent challenges relating to suboptimal inter-reader agreement. In this article, we include 10 educational tips that may be helpful to the ultrasound practitioner for improving the consistency of nodule interpretation with ACR TI-RADS.
Identification of a branchial cleft anomaly via handheld point-of-care ultrasound
Authors:   Morsani College of Medicine, University of South Florida, United States, Hall A. Brad , Hasara Shannon ,   Pharmacy, Lakeland Regional Health, United States, Coker Phillip ,   Emergency Medicine, Lakeland Regional Health, United States
Published: April 2022

Aim of the study: Branchial anomalies result from incomplete obliteration of the branchial arch structures during embryogenesis. Second branchial arch anomalies are commonly found on the lower third of the neck, with an opening at the anterior border of the sternocleidomastoid muscle, and may drain secretions or purulent material. This case demonstrates the use of handheld point-of-care ultrasound to aid in the diagnosis of a branchial anomaly. Case description: The patient presented with a “hole” in the neck with intermittent drainage from the site. A 2 mm defect in the skin was noted anterior to the sternocleidomastoid muscle. A handheld ultrasound system was used to identify a well-defined, hypoechoic, cyst-like structure. Given the history, physical findings, and point-of-care ultrasound imaging, the diagnosis of a second branchial cleft sinus was made. Conclusions: The use of point-of-care ultrasound and knowledge of the sonographic characteristics of these lesions can assist the physician in the diagnosis of branchial arch anomalies.
New liverwort records from the Peruvian Andes
Authors: Pócs T. , Graham J. G. , von Konrat M. , Larraín J.
Published: April 2022

Enumeration and distributional data of 28 liverworts new to Peru are presented, accompanied by taxonomic annotations, phytogeographical evaluation and illustrations. Remarkable new Peruvian records include the very rare northern Andean endemic Platycaulis renifolia as well as Frullania pearceana, hitherto known only from its type locality in Bolivia. Oil bodies are described for the first time in the genus Platycaulis and male branches are newly observed in Radula yanoella, a species hitherto known only in sterile state.
Lectotipificación de Diphysa Sennoides (Papilionoideae: Leguminosae)
Authors: A. M. Hanan-A.
Published: April 2022

Se designa el lectotipo de Diphysa sennoides Bentham (1853: 12) y se excluyen los otros sintipos determinados como Diphysa floribunda Peyritsch (1859: 78) y Diphysa carthagenen sis Jacquin (1760: 28; 1763: 208). Palabras clave: Coulter, lectotipo, México. The lectotype of Diphysa sennoides Bentham (1853: 12) is designated and the other syntypes determined as Diphysa floribunda Peyritsch (1859: 78) and Diphysa carthagenensis Jacquin (1760: 28; 1763: 208) are excluded.
Pollination ecology and breeding system of Ecbolium Ligustrinum (Acanthaceae): a transition from autogamy to xenogamy through specialised plant-pollinator interactions
Authors: Kundu A. , Karmakar P.
Published: April 2022

In view of the ongoing rarity ofEcbolium ligustrinumthere is an urgent need for conservation of the species. For this, a detailed work was carried out regarding the untold story of its reproductive ecology. The work was done for three consecutive years (2015–2017) at Midnapore, West Bengal over three different populations collected from three different areas of West Bengal. Field data were also recorded from these three wild populations. The species produces gullet flowers with bi-labiate corolla having long slender tubes. The flowers exhibit one day of longevity. The flowers are visited by 10 species of insects. Among those, four species viz.Eristalis tenax, a Dipteran member and three ant species of Hymenoptera such asCamponotussp.,Formicasp. andMonomoriumsp. are the effective pollinators. As per pollination efficiency,Eristalis tenax(PEi= 0.76) is the most successful one. The flowers are shortly protandrous (dichogamous) and passed by three distinct reproductive (male, bisexual and female) phases. The breeding system clearly depicts that the species is facultatively xenogamous supported by myophilous mode of pollination. However, geitonogamous type of pollination is also observed through myrmecophily, an atypical instance found in plants. Lastly, the plant retained some sort of autogamy through ‘fail-safe’ mechanism of pollination, an adaptation which might be developed in absence of pollinators. Therefore, undoubtedly it can be concluded thatE. ligustrinumis a partially self-incompatible (ISI = 0.27) species having a mixed mating system, adapted for xenogamy through specialised mode of plant-pollinator interactions.