bluuebunny/crossref_metadata_2025 huggingface dataset:
Rhythms of Nature and Culture in the Art of M. K. Ciurlionis
Authors: Mond-Kozłowska Wiesna
Published: December 2019

This article aims to grasp the ontological constitutional principle known as correspondances des artes. The affinity of arts is usually interpreted as a functional quality, while the author holds that it is of ontic character as well. This results from the shared ontological reference of all natural phenomena of human life and, consequently, human creative work. Experimental knowledge of this metaphysical truth, according to the composer-synaesthetic Olivier Messiaen, is within the reach of very few people, even less so amongst the artists themselves. Mikalojus Konstantinas Čiurlionis, the Lithuanian composer and painter, was one of those very few. The main argument of the article, which is developed in the realm of the ontology of a piece of art, is the premise that the rhythm factor can serve as grounds for discussion to investigate the nature of the correspondances des artes. This was also the subject matter of the French phenomenologist Mikel Dufrenne’s writings (Dufrenne 1992, pp. 323–324).In addition, the author argues that all so-called organic aesthetics (Tatarkiewicz 1985, p. 84), those who claim that the laws of the creative process depend on the laws of nature, prove the existence of the common and shared ontic base of the world, logos. This base belongs to both natural and created ontological phenomena. The synaesthetic pictorial and musical oeuvre of Čiurlionis is the research field for inferring the initial argument of the paper.
Bielinis, L., 2011. The President as a “Political Cliché,” or the Polemical Marginalia of a Philologist
Authors: Čičinskaitė Regina
Published: December 2019

Bielinis, Lauras, 2011. Prezidentė. Kaunas: Knygius; Kitos knygos. 165 p. ISBN 978-427-046-8
La repercusión de la desigualdad y la exclusión en el conflicto político de Nicaragua de la independencia hasta inicios del Siglo XX
Authors: Baldizón Jose Abelardo
Published: December 2019

En Nicaragua, desde la independencia hasta principios del siglo XX, prevaleció la violencia en el conflicto político. Esto se debió a la incapacidad de las facciones en guerra para aceptar el derecho del adversario a convertirse en el gobierno del país; lo cual sumió al país en una dinámica de exclusión mutua y de constantes guerras civiles. Los factores clave para generar esta dinámica fueron: la estratificación social, el clientelismo político y el personalismo. Todos ellos producían un acceso desigual y excluyente al sistema político. La estratificación social se basaba en una concepción jerárquica del orden social que provocaba una profunda desigualdad en la distribución de la riqueza y en la capacidad de participar en la política. En el sistema político nicaragüense, esta desigualdad se reprodujo en forma de redes jerárquicas de clientes que luchan entre sí para controlar el Estado. Al mismo tiempo, las personas más cercanas a la cúspide de la jerarquía tenían mayores posibilidades de influir en el proceso de toma de decisiones políticas. Como resultado, la inclusión/exclusión en el sistema político fue regulada, en primer lugar, por la posición que ocupaba en la jerarquía social y política que tenía una persona y, en segundo lugar, por la cercanía de sus vínculos con los miembros del campo político que controlaba el aparato estatal.
The Beatles: tradición, vanguardia… y expresividad
Authors: Seguí Montiel , Vela Marta
Published: December 2019

La música de The Beatles, tras su enorme éxito a través del tiempo, esconde diversos secretos que hunden sus raíces no solo en las tendencias coetáneas más evidentes –Pop Art, hippismo, cómic–, sino también en otras mucho más alejadas y sorprendentes que se refieren al manejo de las emociones, desde diversas herramientas armónicas procedentes de la música académica con la manifiesta influencia de las artes visuales, la pintura, la fotografía o la iconología sobre los álbumes del grupo. La continua búsqueda expresiva en The Beatles convirtió la música de la banda de Liverpool en una síntesis perfecta entre vanguardia y tradición a causa de la convergencia entre texto y sonido y, sobre todo, gracias al aprovechamiento de recursos tradicionales como el uso del cromatismo y de la dominante secundaria.
Women in Shahnameh: An Overview on Mythical, Lyrical and Social Aspects
Authors: Rahmanian Elaheh , Ashrafzadeh Reza
Published: December 2019

Shahnameh is the most significant Persian epic masterpiece and it is the world's lengthiest epic poem written by a single poet. Shahnameh mainly describes mythical and historical dimensions of the Persian Empire in series of stories. The manifestation of love in the stories of Shahnameh is a real stimulus to prowess and epic. In this regard, Ferdowsi delicately paid attention in developing women characters of Shahnameh. In this article, it is tried to investigate mythical, lyrical and social aspects of women in different sections of Shahnameh. Mythical aspects of Shahnameh including zoroastrian beliefs are reviewed. The lyrical bases including poetry, playing, loving and marriage are considered in this research. And many women such as Roodabeh, Tahmineh and Jarirehwho contribute to lyrical aspects of Shahnameh are found and their character and other related dimensions are investigated and described. Interestingly it is found that in Shahnameh stories, gallantry alone cannot help a hero reach his goals unless love and affection are combined with it. Also, our research shows that some women in Shahnameh express their love consciously over their beloved man. Further, social roles of women in the romantic stories are categorised in political, martial, and artistic forms and further discussed.
Ensayar desde el pensamiento retrospectivo: la multifotografía como metáfora del entrelazamiento entre ensayo, memoria y ficción en La invención de la soledad de Paul Auster
Authors: Aguirre Eduardo
Published: December 2019

El presente artículo tiene por objeto establecer un tipo de lazo entre ensayo, memoria y ficción. Intentaremos demostrar que su entrelazamiento no sucede únicamente porque la prosa se ficcionaliza puesto que el recuerdo es sospechoso y poco confiable (lugar común de la crítica), sino más bien porque quien ensaya desde la memoria mistifica su objeto de estudio, multiplicándolo como quien pone dos espejos frente a frente, presentando la imagen multiplicada bajo la apariencia de la vivencia personal. Para ello, en primer lugar, indagaremos la proximidad entre ensayo y memoir; posteriormente, daremos cuenta de la manera en que se activa la escritura ensayística a través del recuerdo difuso y la memoria reconstruida; finalmente, como evidencia de nuestra premisa, mostraremos cómo se lleva a cabo este hecho en “Retrato de un hombre invisible” del norteamericano Paul Auster.
Sexual Dimorphism Via Palatal Vault Morphometric Analysis on A Sample Peruvian Population
Authors: Escalante-Flórez DDS Karen J. , Suárez-Ponce DDS, MSc, PhD Daniel G. , Velezmoro-Montes DDS, MSc Ymelda W.
Published: December 2019

Objective: Determine sexual dimorphism precision via palatal vault morphometric analysis in craniums sourced from the Laboratorio de Investigación Forense del Equipo Forense Especializado (EFE) de Ayacucho del Ministerio Público - Perú. Materials and Methods: Cross-sectional design consisting of a sample of 43 skulls with pre-established biological gender, (24 males and 19 females). Sexual dimorphism was established by means of the method proposed by Meera Jacob and co., based on palatal width and length measurements, after which the palatal index was calculated, establishing the method’s precision and accuracy. The inferential analysis was made with a level of significance of 5% through the T student test, Shapiro Wilk and Pearson’s coefficient. Results: Palatal width had a mean of 3.43 (+0.31cm) for males and 3.62 (+0.25) for females and in palatal length a mean of 5.07 (+0.44) cm. for males and 4.79 (+0.41) cm. for females is established; on palatal index, 100% of the male skulls correspond to hard narrow palate and on females 73.7% to narrow, 21% to intermediate and 5.3% to wide. Furthermore, it was determined that there were statistically significant differences between width and length of palatal vault for both genders, and a discriminating analysis formula was proposed. Conclusion: Morphometric analyses of palatal vaults establish an 83.72% precision on the estimation of sexual dimorphism.
Gains from trade: The Costa Rican case
Authors: Alfaro Ureña Alonso
Published: December 2019

One of the oldest and most interesting questions in the economic literature is how to quantify the gains from trade. Recently, Costinot & Rodríguez-Clare (2014) (CRC) developed a methodology that uses the World Input Output Database (WIOD) to compute this value for a list of countries. Costa Rica has never been part of this database given the lack of appropriate data. However, with the publication of a new Input Output Table for Costa Rica, the Foreign Trade Ministry (COMEX) was able to develop a domestic version of the WIOD that includes the country.  This paper presents the results of the CRC methodology using this version of the WIOD to compute gains from trade for the Costa Rican economy. Counterfactual exercises that compare the current situation with autarky and other average tariff levels using different productive structures and competition schemes in the economy are also presented. The results can provide valuable information on how much a small open economy like Costa Rica’s can benefit from international trade, and what are the differences in the results when compared to similar countries.
Evaluación del desempeño de un catalizador de níquel/alúmina en distintas condiciones de operación para la producción de hidrógeno mediante reformado de metanol en fase acuosa (APR)
Authors: Cartín Muñoz Felipe , Ulate Brenes Mauricio Adolfo
Published: December 2019

El objetivo del proyecto de investigación fue determinar el efecto de la temperatura, concentración de metanol y cantidad de catalizador en la tasa de producción de hidrógeno por medio de un proceso de reformado en fase acuosa, utilizando un catalizador de níquel soportado en alúmina comercial.

El catalizador se sintetizó utilizando el método de impregnación insipiente, se calcinó y se redujo utilizando una corriente al 5 % de hidrógeno, con un flujo de 250x10-3 l·min-1, a 723.15 K (450 °C) por un periodo de 4 h. El catalizador sintetizado se caracterizó y se determinó el área superficial, cristalinidad, composición, así como se realizaron micrografías para comprobar su morfología.

Para el estudio del efecto de las variables en la taza de producción de hidrógeno se realizó un diseño experimental Taguchi L8, con tres variables y dos niveles: temperatura 473.15 K y 498.15 K, concentración de metanol 2% v/v y 6% v/v; y cantidad de catalizador 2,5 % m/m y 5 % m/m.

Se encontró que el catalizador utilizado presenta un área de 88 m2/g, con poca cristalinidad, considerándose amorfo, con un porcentaje de níquel cercano al 3 %, como se estableció. Con respecto al diseño estadístico se comprobó que solo la temperatura es significativa en la taza de producción de hidrógeno y que es mejor trabajar a 498.15 K, mientras que la concentración de metanol o cantidad de catalizador no son significativas.
Uso de categoría gramatical en la identificación de sentimiento
Authors: Abarca Jiménez Emmanuel , Ruiz Ramón Rocío , Casasola Murillo Edgar
Published: December 2019

Esta investigación analiza el impacto que tiene el filtrado de n-gramas de palabras, usando su categoría gramatical, sobre la identificación de sentimiento a partir de comentarios de texto provenientes de redes sociales en idioma español. Se investigó el impacto de filtrar n-gramas que contienen adjetivos, adverbios e interjecciones. Se logró determinar que es posible reducir el volumen de datos procesado y, a la vez, lograr una mejora de hasta un 30 % en la precisión al clasificar un corpus anotado de comentarios separando los que expresan sentimiento de los que no.
A delay differential equations model for disease transmisión dynamics
Authors: Erdem Mustafa , Safan Muntaser , Castillo-Chavez Carlos
Published: December 2019

A delay differential equations epidemic model of SIQR (SusceptibleInfective-Quarantined-Recovered) type, with arbitrarily distributed periods in the isolation or quarantine class, is proposed. Its essential mathematical features are analyzed. In addition, conditions that support the existence of periodic solutions via Hopf bifurcation are identified. Nonexponential waiting times in the quarantine/isolation class lead not only to oscillations but can also support stability switches.
Dengue model with early-life stage of vectors and age-structure within host
Authors: Sánchez Fabio , Calvo Juan G.
Published: December 2019

We construct an epidemic model for the transmission of dengue fever with an early-life stage in the vector dynamics and age-structure within hosts. The early-life stage of the vector is modeled via a general function that supports multiple vector densities. The basic reproductive number and vector demographic threshold are computed to study the local and global stability of the infection-free state. A numerical framework is implemented and simulations are performed.
Modeling voting dynamics in a two-party system
Authors: Phan Tin , Navas-Zuloaga M. Gabriela , Ignace Caleb , Castillo-Garsow Carlos W. , Moreno Victor M. , Kribs Christopher M.
Published: December 2019

The 2016 U.S. presidential primary election, characterized by unexpected results, provides an interesting context to study how citizens are influenced in deciding whether to vote and whom to support. Our aim is to determine which of those changes in voting behavior have the largest impact on the election outcome. We address this question by developing a class of models driven either by the effect of mass media or by social interaction among voters and non-voting members of two parties. The dynamics are modeled using four compartments with a transition matrix describing the evolution of a discrete-time Markov chain. Each model is studied and fit to poll data from the 2012 and 2016 U.S. presidential elections using numerical methods. A comparison across elections indicates that the social influence of each group changes from one election to another, but response to media is similar in both cases.
Transmission dynamics of dengue in Costa Rica: the role of hospitalizations
Authors: Sánchez Fabio , Arroyo-Esquivel Jorge , Vásquez Paola
Published: December 2019

For decades, dengue virus has caused major problems for public health officials in tropical and subtropical countries around the world. We construct a compartmental model that includes the role of hospitalized individuals in the transmission dynamics of dengue in Costa Rica. The basic reproductive number, R0, is computed, as well as a sensitivity analysis on R0 parameters. The global stability of the disease-free equilibrium is established. Numerical simulations under specific parameter scenarios are performed to determine optimal prevention/control strategies.
Repercusiones psicosociales en la dinámica familiar una vez finalizado el tratamiento de tumores cancerígenos en niños y niñas: diferencias entre familias monoparentales y nucleares biparentales
Authors: Ramírez Zúniga Karol , Sandoval Castillo Jennifer
Published: December 2019

La presente investigación enfatizó como tema principal las repercusiones psicosociales en la dinámica familiar una vez finalizado el tratamiento de tumores cancerígenos en niños y niñas, esto resaltando las diferencias entre familias monoparentales y nucleares biparentales. La metodología utilizada fue cualitativa, específicamente un estudio retrospectivo de diseño fenomenológico donde la información se obtuvo por medio de entrevistas y se complementó con una escala (ello únicamente para la categoría de familismo). Posteriormente se realizó el análisis de la información dando uso del análisis de contenido, el método comparativo constante y la triangulación metodológica de la información. Dentro de las principales conclusiones se hallaron: la comunicación abierta sobre el tema dentro de las familias, sobreprotección al niño (a) enfermo, una mayor tendencia al familismo por parte de las mujeres de las familias nucleares, traslado temporal de vivienda, madre cuidadora principal, creencias religiosas como recurso para sobrellevar la situación, entre otras.
Interacciones de género en la actividad académica de estudiantes de psicología: revelaciones desde la Teoría de sistemas - RED
Authors: Dillon Pérez Francisco Xavier , Freire Muñoz Irina Alejandra , Espinosa Fuentes Diana Estefanía
Published: December 2019

La presente investigación corresponde a un enfoque cuantitativo, de corte transversal y alcance exploratorio - descriptivo. Se utiliza la categoría metodológica del sistema social de Niklas Luhman y la herramienta descriptiva de la teoría de redes. Los participantes corresponden a 34 estudiantes, 25 mujeres y 9 hombres con edades comprendidas entre los 17 y 22 años. El instrumento utilizado es INTRED1, validado en dos fases. Para el procesamiento de datos se utilizó el software GEPHI. El objetivo del estudio es determinar las formas de interacción de género en la actividad académica, tomando como referencia el rendimiento académico de la materia de Lenguaje y Comunicación en la carrera de Psicología en una universidad privada de la ciudad de Quito. Entre los resultados más importantes se destaca que en la red, las interacciones en la actividad académica se encuentran significativamente marcado por las mujeres.
PENGARUH PERSEPSI SERTIFIKASI HALAL, KUALITAS PRODUK, DAN HARGA TERHADAP PERSEPSI PENINGKATAN PENJUALAN
Authors: SEGATI AHDA
Published: December 2019

This study aimed to find out about the effect of halal certificate, product quality, and price on sales increase in Aqiqah Catering Nurul Hayat Yogyakarta.This was a field research which used quantitative approach. The population was all the consumers and producers of Aqiqah Catering Nurul Hayat Yogyakarta. The sample was selected using sample random sampling with a total of 150 respondents. The method used in this study was quantitative with multiple linear regressions. The findings showed that the variables of halal certificate, product quality, and price have a significant effect on sales increase. This is evident from the Fcount of 8.151 > Ftable of 2.67 with a significance of 0.000 (> 0.05). Therefore, H0 was rejected and H1 was accepted, meaning that there is a simultaneous effect of the variables of halal certificate, product quality, and price have a significant effect on sales increase in Aqiqah Catering Nurul Hayat Yogyakarta. In addition, the variables of halal certificate, product quality, and price have a significant effect on sales increase of 12.6%, evident from the R2 of 0.126, while the remaining 87.4% is affected by other variables not discussed in this model.
MAKSIMALISASI POTENSI ZAKAT MELALUI PENINGKATAN KESADARAN MASYARAKAT
Authors: NURHASANAH SITI , SURYANI SURYANI
Published: December 2019

The theme of the article is: zakat management. The purpose of the article is: to examine the potential of zakat to overcome poverty. The research method used in this research is qualitative research methods. Zakat is a property that must be issued by a Muslim to give to those who have the right to receive it in accordance with Islamic law. The analysis shows that zakat can reduce the number of poor families from 84% to 74%. This shows the extraordinary potential of zakat which can prosper the people. Therefore the people need to be made aware of the importance of fulfilling the obligation of zakat. This awareness can be through socialization and education to the public related to the law, the wisdom of zakat, the assets of the zakat object as well as the procedures for calculation, and the relation between zakat and taxes. This is the duty of the government and the community to continue to campaign for zakat.
POLA IMPLEMENTASI ALOKASI ZISWAF DALAM PENYEDIAAN AKSES PENDIDIKAN BAGI KAUM DHUAFA
Authors: UMMAH KHURUL AIMMATUL , RIYADI AHMAD , HERIANINGRUM SRI
Published: December 2019

The education sector is an escalator to the nation's future moral, progressive, prosperous, dignified and prosperous. But the reality in Indonesia at this time not all walks of life can benefit from a good education. There are very many people who can not enjoy a proper education due to economic factors, or inability to access it. Islam has used philanthropy in removing economic and social disparities within a community in which ZISWAF (Zakat, Infaq, Sedekah and Wakaf). When this has been a lot of institutions that focus on social fund through the instrument ZISWAF, but the distribution of these funds are still focused towards sectors of the economy, even to meet the needs of the consumer. Indeed the education sector is also one of the strategic sectors which should be considered as a form of manifestation in pencampaian future for poor people better.Through research that uses qualitative approach aims to be able to determine the pattern of distribution of funds ZISWAF implementation by collectors in the provision of access to education for the poor, so as to explain and provide information to the public in the disbursement of funds ZISWAF to providing access to education for the poor quality. By using kompratif study researchers compared patterns of implementation ZISWAF implemented by the two institutions that became the object of research is Smart Ekselensia, and Junior High School champion, then the results of the analysis will be processed using the method of Spradley. Based on the results of analysis show that the implementation of the distribution ZISWAF in procuring access to education for these three agencies do have differences, but it overlooks impact both in providing quality education for the poor.
A collaborative bird survey of East Kwaio, Malaita, Solomon Islands
Authors: Callaghan Corey T. , Kekeubata Esau , Waneagea Jackson , Alabai Maasafi , Esau Tommy , MacLaren David , Major Richard E.
Published: December 2019

We surveyed the birds of East Kwaio, Malaita, Solomon Islands from 20 October to 2 November 2018. We conducted 66 point counts and recorded or observed 58 species of resident landbirds, including 23 of the 24 passerine species known from the island of Malaita and 15 waterbird species. We collected some form of samples (e.g., whole specimens and/or blood samples) from 61 individuals of 17 species, including representatives of the four species-level endemics: Malaita Fantail Rhipidura malaitae (Mayr, 1931), Malaita Dwarf-Kingfisher Ceyx malaitae (Mayr, 1935), Malaita White-eye Zosterops stresemanni (Mayr, 1931), and Red-bellied Myzomela Myzomela malaitae (Mayr, 1931). We demonstrate the considerable potential for conservation of the Malaitan avifauna on traditional lands in the mountains of East Kwaio. The extensive knowledge of the local people was a key factor in the success of the expedition. To facilitate ongoing conservation efforts, we documented the local Kwaio names of the birds we encountered.
About the Optimal Recovery of Derivatives of Analytic Functions from Their Values at Points That Form a Regular Polygon
Authors: Ovchintsev Mikhail
Published: December 2019

In this paper, the author solves the problem of optimal recovery of derivatives of bounded analytic functions defined at the zero of the unit circle. Recovery is performed based on information about the values of these functions at points z1, ... , zn , that form a regular polygon. The article consists of an introduction and two sections. The introduction talks about the necessary concepts and results from the works of Osipenko K.Yu. and Khavinson S.Ya., that form the basis for the solution of the problem. In the first section, the author proves some properties of the Blaschke product with zeros at the points z1, ... , zn. After this, the error of the best approximation method of the derivatives f(N)(0), 1 ≤ N ≤ n − 1, by the values f(z1), ... , f(zn) is calculated. In the same section he gives the corresponding
extremal function. In the second section, the uniqueness of the linear best approximation method is established, and then its coefficients are calculated. At the end of the article, the formulas found for calculating of the coefficients are substantially simplified.
Automation of Morphological Tagging of Archival Documents
Authors: Komendantov Anatoly , Matveev Alexander , Svetlov Andrey
Published: December 2019

The paper provides the description of the add-on to the stemming tool MyStem by I. Segalovich. We designe the application to add the MyStem a convenient graphical interface that is easy to learn and intuitive for users who do not specialize in information technology. It turned out that MyStem correctly processes outdated vocabulary if it is passed into the program using modern Cyrillic. In addition to the convenient interface, our program has the option to work with the outdated Cyrillic alphabet, when turned on, for instance, the letters zelo and omega are being replaced by «ks» and «o» respectively, and only then the text is transferring for analysis to MyStem, and then the characters are being replaced back in the processed document. So our add-on intercepts the output of the MyStem tool, reformatts and analyzes it in a special way. In addition, the application has functionality for removing homonyms manually if the program was not correct with automatic tagging the morphological characteristics of a word. The main purpose of this application is to prepare the morphological tagging of documents of the archival fund «Mikhailovsky Stanichny Ataman» to create a linguistic corpus. During the work on the application, we solved the problem with the correct processing of texts containing outdated Cyrillic characters. To implement the functional and user-friendly graphical interface, we use the JavaFX platform (OpenJFX).
Modeling the Effects of Electromagnetic Radiation on Natural Aerosols
Authors: Krivenko Irina , Smirnova Marina
Published: December 2019

The subject of research is dispersed systems that absorb the incident electromagnetic radiation, which initiates the process of heat transfer in them. 1) Systems consisting of two interacting spheres and two parallel cylinders (convergence of two particles suspended, for example, in air, are more likely than convergence of N particles (N > 2) are considered. Based on the Mie theory, analytical solutions are obtained for the components of the electric field intensity vector inside the dispersed particles, which were used to calculate the power distribution of thermal sources over their cross sections. 2) non-uniform composition of a spherical particle. For this case, calculations are made by the finite element method.
Photochromic printing and spectral properties of luminous polyester non-woven fabric
Authors: Li Jing , Li Yonggui , Song Xiaolei , Chen Haizhen
Published: December 2019

Considering the potential application for multicolor luminescent fabrics, a new non-woven fabric capable of emitting blue-violet light was prepared. Luminous non-woven fabrics were prepared using rare-earth strontium aluminate (SrAl2O4) material and polyester (poly(ethylene terephthalate)) through the spun-bonding method. These fabrics were treated with a purple-emitting photosensitive material using the printing and dyeing technique. In the present study, the surface morphologies, absorption spectral properties and photochromic properties of the luminous non-woven fabrics were investigated. The printing paste could obtain certain roughness on the surface of these fabrics. The luminous characteristics of fabrics were changed by the printing process, which have been proved by fluorescence spectrophotometer and PR-650 spectral radiation analyzer. The results revealed that fabrics treated in the process of photochromic printing had two absorption wavelengths of 280 and 365 nm. The results also showed that the optimum doping concentration was 10%, and quenching occurred at excess. The fabrics exhibited good luminous effects and photochromic properties, and the emission wavelength and light color of the fabrics after the modification were blueshifted.
Why continue with floristic checklists in Mexico? The case of the Tacaná-Boquerón Priority Terrestrial Region, in the Mexican State of Chiapas
Authors: Martínez-Camilo Rubén , Martínez-Meléndez Nayely , Martínez-Meléndez Manuel , Pérez-Farrera Miguel Ángel , Jiménez-López Derio Antonio
Published: December 2019

Background: Some regions of Mexico have been relatively well explored floristically and estimates of the vascular plant richness they contain have been obtained. However, there are still regions that require effort to obtain the most appropriate lists of flora possible that consider both systemization of the information and that benefit from recent botanical explorations.
Questions: What is the species richness of vascular plants in the Tacaná-Boquerón Priority Terrestrial Region? What proportion of the species are endemic or included in risk categories?
Study sites and dates: Tacaná-Boquerón Priority Terrestrial Region, Chiapas State, Mexico. This region is on the Guatemala border and covers an area of 57,400 ha. Between 1920 and 2015.
Methods: A database of 14,487 vascular plant records was integrated. Two sources of information were compared: systematization of databases, and recent botanic expeditions.
Results: We found 2,485 native species belonging to 185 families. Both data sources were complementary in order to obtain a more complete floristic checklist (systematization of database: 1,774 spp., recent botanic expeditions: 1,514 spp.). As novelties, we found three new species and seven new reports for Mexico. Approximately 14 % of the species documented are included in risk categories or are endemic to the study site.
Conclusions: Our checklist is one of the largest in the region (Mexico and Central America) in terms of species count. Our study shows the importance of conducting botanical explorations to complement the information on vascular plant richness in relatively well-explored areas of Mexico.
Nodule-forming Sinorhizobium and arbuscular mycorrhizal fungi (AMF) improve the growth of Acacia farnesiana (Fabaceae): an alternative for the reforestation of the Cerro de la Estrella, Mexico
Authors: Gómez-Acata Selene , Amora-Lazcano Enriqueta , Wang En Tao , Rivera-Orduña Flor N. , Cancino-Diaz Juan Carlos , Cruz-Maya Juan Antonio , Jan-Roblero Janet
Published: December 2019

Background: Cerro de la Estrella (CE) is a natural reserve in Mexico City that suffers from afforestation, and its restoration with Acacia farnesiana is being considered .

Question: Will the nodule-forming rhizobia and arbuscular mycorrhizal fungi (AMF) associated with the CE soil support A. farnesiana growth?

Study species: Acacia farnesiana (L.) Willd . (Fabaceae).

Methods: Mycorrhizal fungi, nodule-forming rhizobia and physicochemical characteristics of the CE soil were studied to determine if they are suitable for improving the growth of Acacia farnesiana .

Results: Four different families of AMF were found which generated 13 % mycorrhization with A. farnesiana . However, A. farnesiana from CE did not nodulate, suggesting the lack of native rhizobia. The CE soil has low fertility. Nodules of A. farnesiana were obtained from the soil in Ticuman, Morelos, and 66 rhizobia were isolated from them. Rhizobium isolates were individually added to A. farnesiana grown in the CE soil. Five of the 66 isolates yielded significant differences in shoot dry weight, shoot height, number of nodules, nodulation time and nitrogenase activity compared with the Sinorhizobium americanum CFNEI 156 control strain ( p < 0.05). Three isolates were named as S. americanum ENCBTM1, ENCBTM31 and ENCBTM43, and last two as Sinorhizobium sp. ENCBTM34 and ENCBTM45.

Conclusions: CE soil had low fertility and lacked specific rhizobia for A. farnesiana . The individual addition of S. americanum (ENCBTM1, ENCBTM31 or ENCBTM43) or Sinorhizobium sp. (ENCBTM34 or ENCBTM45) improved the growth of A. farnesiana.
Biodiversity relationships in three structural components in a beech forest of Fagus grandifolia subsp. mexicana
Authors: Calva-Soto Karina , Pavón Numa P. , Sanchéz-González Arturo , Moreno Claudia E. , Ramírez-Marcial Neptalí
Published: December 2019

Background: Several studies have called attention to beech forest conservation and restoration in Mexico. Human activities ( e.g ., logging and grazing) have perturbed the few beech forests that persist in the Sierra Madre Oriental, Mexico. However, basic information about ecological relationship in beech forests are scarce.
Questions: How are the relationship among structural components in a forest with high dominance of Fagus grandiflora subsp. mexicana ?
Species study: Fagus grandiflora subsp. mexicana an endangered tree species.
Study site and dates: During 2015-2016 in a beech forest of Fagus grandiflora subsp. mexicana in San Bartolo Tutotepec, Hidalgo, Mexico.
Methods: In four circular plots (11.28 m diameter), all tree species were recorded. For seed bank sampling five circular subplots were established in each plot. Two soil samples (50 × 50 cm and 5 cm deep) were collected and seedlings were recorded in five subplots (two meters in diameter) in each plot. All species of seeds, seedlings and trees were identified.
Results: Seed bank was composed of 32 species while 17 and 9 species were registered for seedlings and trees, respectively. F . grandifolia subsp. mexicana and Quercus delgadoana were abundant both in seedling bank and tree canopy. Species compositions among the three beech forest structural components were significantly different.
Conclusions: The relationship among structural components were low. Quercus delgadoana in a future scenario would replace F . grandiflora subsp. mexicana as the dominant species in the forest.
Inventario florístico de la Reserva de la Biosfera Sierra del Abra Tanchipa, San Luis Potosí, México
Authors: De-Nova José Arturo , González-Trujillo Ricardo , Castillo-Lara Pedro , Fortanelli-Martínez Javier , Mora-Olivo Arturo , Salinas-Rodríguez1 María Magdalena
Published: December 2019

Antecedentes: Los bosques tropicales estacionalmente secos de México incluyen más de tres mil especies de plantas vasculares. La Reserva de la Biosfera Sierra del Abra Tanchipa representa un eslabón para este tipo de bosques en la región noreste de México.Pregunta: ¿Cuál es la composición y riqueza de plantas vasculares en la Reserva de la Biosfera Sierra del Abra Tanchipa, sus formas de crecimiento, endemismo, usos y estado de conservación?Sitio de estudio y fechas: Reserva de la Biosfera Sierra del Abra Tanchipa, San Luis Potosí, México, de diciembre de 2012 a enero de 2018.Métodos: Se realizaron recolectas botánicas en un gradiente de 100 a 700 m snm. Se tomaron datos sobre el hábitat, fenología, forma de crecimiento, nombres comunes y usos.Resultados: Se registraron 89 familias, 305 géneros y 427 especies de plantas vasculares. Las familias con más especies fueron Fabaceae, Orchidaceae, Poaceae, Asteraceae y Euphorbiaceae. El área incluye 46 especies endémicas de México y siete especies en alguna categoría de riesgo según la NOM-059-SEMARNAT-2010. Entre las 116 especies útiles y/o tóxicas destacan las ornamentales, para construcción, comestibles y medicinales.Conclusiones: La riqueza de especies en el área es similar a la registrada en otras regiones de bosques tropicales estacionalmente secos en México. El buen estado de conservación de la reserva, su conexión con otros fragmentos de bosques hacia el norte, así como la presencia de especies endémicas y en alguna categoría de riesgo, resaltan su importancia para la conservación de estos ecosistemas en México.
Botanical Sciences a 75 años, los otros datos de la historia
Authors: Rzedowski Jerzy
Published: December 2019

Editorial 97(4). 75 aniversario.
Reviewers acknowledgments
Authors: Arias Salvador
Published: December 2019

Reviewers acknowledgments, Vol. 97 Numbers 1, 2, 3 and 4. 2019.
Conhecimento dos acadêmicos de odontologia sobre traumatismos em dentes decíduos
Authors: Melo Joana Vitória , Peres Gustavo , Andrade Éllen , Nogueira Daniela , Cruz Márcia , Dantas-Neta Neusa
Published: December 2019

INTRODUÇÃO: O trauma dentário é o conjunto de impactos que afeta os dentes e suas estruturas de suporte desde fratura em esmalte até a perda definitiva do elemento dentário. Entre os principais fatores etiológicos de traumatismo dentário na infância encontram-se as práticas desportivas, acidentes automobilísticos, atividades pertinentes à infância, agressões e fatores predisponentes individuais. O prognóstico das lesões traumáticas é influenciado pelo tipo e gravidade da lesão, intervalo de tempo entre o episódio do trauma e o tratamento inicial. OBJETIVO: Analisar o conhecimento dos acadêmicos de odontologia de uma instituição de ensino superior sobre trauma dentário em dentes decíduos. MATERIAIS E MÉTODOS: Trata-se de uma pesquisa transversal. Os dados foram coletados através da aplicação de um questionário, com perguntas sobre conhecimento em trauma dental e a conduta frente a situações de traumatismo dentário, realizado com alunos que cursaram a disciplina de Clínica Integrada Infantil I, II e III. Foi realizado análise descritiva dos dados e aplicado o Teste de Tendência Linear, considerando valor de p<0,05. RESULTADOS: Observou-se um baixo nível de conhecimento dos acadêmicos sobre o tema abordado, apenas 8% acertaram todas as questões, com a menor quantidade de acertos em casos de subluxação (37,3% de acertos) e avulsão (41,2% de acertos). Não houve associação do período com nível de conhecimento (valor de p>0,05). CONCLUSÃO: O conhecimento dos alunos sobre traumatismo dentário é baixo, principalmente sobre tratamento de casos de trauma como subluxação e avulsão.
Gerçek deniz ortamında su altı kaynağı ile birleştirilen Grade AH36 gemi sacının kaynak bölgesinin karakterizasyonu
Authors: ÇOLAK Zahit , AYAN Yusuf , KAHRAMAN Nizamettin
Published: December 2019

Bu çalışmada, Grade AH36 gemi sacı atmosferik şartlarda ve su altında artan farklı derinliklerde (4, 8 ve 16 m) örtülü elektrodla ark kaynak yöntemi ile birleştirilmiştir. Birleştirmelerde E6013 rutil örtü tipli elektrod bantla kaplanarak kullanılmıştır. Kaynaklı numuneler ilk olarak gözle muayene edilmiş, devamında radyografik teste tabi tutulmuşlardır. Kaynaklı birleştirmelerin mekanik özelliklerini belirlemek için çentik darbe ve eğme testi testleri uygulanmıştır. Kaynak bölgesinde meydana gelen yapısal dönüşümleri gözlemlemek için mikroyapı çalışmaları, ayrıca kaynak bölgesinde sertlik taraması yapılmıştır. Kaynaklı numunelere yapılan tahribatsız muayene sonucunda kaynak yüzeyinde ve pasolar arasında cüruf kalıntısı, gaz boşluğu, yanma olukları, nüfuziyet azlığı gibi hatalara rastlanılmıştır. Su altında birleştirilen parçalarda derinlik farkı arttıkça kaynak metalinde oluşan kalıntı, gaz boşlukları vb. gibi hatalardan dolayı eğme testleri olumsuz sonuçlanmıştır. Çentik darbe test sonuçlarına göre, atmosferik şartlarda birleştirilen numunenin su altında farklı derinliklerde birleştirilenlere göre daha iyi tokluk dayanımına sahip oldukları görülmüştür. Yapılan sertlik testleri sonucunda, en yüksek sertlik değerleri kaynak metalinden ölçülürken onu sırasıyla ısının tesiri altında kalan bölge (ITAB) ve ana malzeme takip etmektedir. Mikroyapı incelemelerin sonucunda kaynak metalinin dentritik yapıda olduğu, ITAB’da ana malzemenin hadde yapısının bozulduğu ve bu bölgede tanelerin kısmen irileştiği görülmüştür.
Beveloid dişli çarkların modellenmesi ve alttan kesme analizi
Authors: ŞENTÜRK Berat Gürcan , FETVACI Mahmut Cüneyt
Published: December 2019

Beveloid dişliler, evolvent dişlilerin genel
matematik modelidir. Bu dişliler, aynı zamanda paralel, kesişen ve aykırı
millerde güç iletiminde 
kullanılmaktadır. CNC tezgahlardaki gelişmelere bağlı olarak, beveloid
dişlilerin hassas imalatı kolaylaşmıştır. Bu nedenle, beveloid dişliler, birçok mühendislik
uygulamasında yaygın olarak kullanılmaktadır. Tasarım esnasında konik ve helisel dişli çarklar
için, belirli sınırların altındaki diş sayılarında ortaya çıkan alttan kesme
durumları ise, temas eden dişler arasında yük dağılımını ve kök mukavemetini
olumsuz yönde etkileyen önemli bir faktördür. Bu
çalışma kapsamında, özellikle bilgisayar destekli tasarım için elverişli
olabilecek matematiksel modelleme üzerinde durulmuş ve alttan kesme durumları
incelenerek, bu durumların ortadan kaldırılmasını sağlayabilecek, modifikasyonlar, matematiksel denklemlerde belirtilmiştir. Sonuç olarak,
matematiksel modelleri verilen beveloid dişlilerin, alttan kesmelerin oluştuğu
şartlarda kök kısımlarındaki gerilme dağılımları sonlu elemanlar yöntemi (FEM)
ile elde edilmiş ve bu durumların ortadan kaldırılabilmesi amacıyla pozitif
profil kaydırma ve asimetrik kremayer takımla imalat yöntemleri kullanılmıştır.
Gerilme analizleri sonuçlarında, kök kısımlarında maksimum gerilmenin
azaltıldığı görülmüştür. Sonuç olarak, kullanılan bu iki yöntem yardımıyla
dişlilerde kök mukavemetini arttırmak mümkün olabilecektir.
Prenatal Tarama Testleri ve Hücreden Bağımsız Fetal DNA
Authors: ŞİRİN Fevziye Burcu
Published: December 2019

Prenatal tarama
testlerinin kullanım amacı gebeliğin erken haftalarında kromozomal anöplöidi
açısından yüksek risk taşıyan gebelerin tesbit edilmesi ve her gebenin mevcut
riskleri ve tercihleri göz önünde bulundurularak bilgilendirilmesidir. Son
yıllarda prenatal tarama testleri geleneksel prenatal tarama testleri ve
hücreden bağımsız fetal DNA (cffDNA, fetal DNA, NIPT) olarak ikiye
ayrılmaktadır. Maternal kandan biyobelirteçlerin ölçülüp
ultrasonografik bulgularla kombine edildiği geleneksel prenatal tarama testleri
halen birinci tercih olarak önerilmektedir. cffDNA ile gebeliğin 10.
haftasından itibaren maternal kanda yeni nesil sekanslama teknikleri
kullanılarak fetal DNA fragmanları analiz edilmektedir. Günümüzde hangi
popülasyona cffDNA testinin önerileceği, klinik kullanımda faydası, maliyeti,
limitasyonları ve avantajları  tartışmalı bir konudur.
PENETRAN TRAVMALI ÇOCUKTA MİNİMAL İNVAZİV YAKLAŞIM : OLGU SUNUMU
Authors: AKIN Süleyman Emre , ARAS Necip
Published: December 2019

Çocuk yaş gurubunda travma önde gelen ölüm sebebidir. Penetran travmalar hızlı ve etkin müdahale gerektiren yaralanmalardır. Son yıllarda travmada minimal invaziv cerrahi yaklaşımlar tanı ve tedavide yaygın olarak kullanılmaya başlamıştır. Bu çalışmada torakal ve abdominal penetran travma sonucu torakoskopik ve laparoskopik cerrahi yöntemle perikard yaralanması, mide perforasyonu ve karaciğer laserasyonu tespit ederek tedavi ettiğimiz olgumuzu sunmayı amaçladık.
High resolution labeling of vagal afferent fibers using Dextran-Biotin with counterstaining v1
Authors: Powley Terry , Mcadams Jennifer , Phillips Robert
Published: December 2019

This protocol describes the methods used to trace and enable morphometric quantification of vagal afferent neurites in the rat stomach. A mixture of dextran conjugates was injected into the nodose ganglia of young adult Sprague-Dawley rats and after a survival period of 14 days for optimal tracer transport, stomachs were removed and processed as whole mounts. ABC-DAB was used to create a permanent gold-brown stain of all labeled afferent neurites. Subgroups of samples were also counterstained with either the panneuronal chromogen cuprolinic blue or with nNOS antibodies and steel gray chromogen to label nitrergic cells.
High resolution labeling of vagal efferent fibers using Dextran-Biotin with counterstaining v1
Authors: Jaffey Deborah , Powley Terry , Mcadams Jennifer , Phillips Robert
Published: December 2019

This protocol describes the methods used to trace and enable morphometric quantification of preganglionic efferent neurites in the rat stomach. A mixture of dextran conjugates was injected into the dorsal motor nucleus of the vagal nerve (dmnX) of young adult Sprague-Dawley rats and after a survival period of 19 days for optimal tracer transport, stomachs were removed and processed as whole mounts. ABC-DAB was used to create a permanent gold-brown stain of all labeled efferent neurites. Subgroups of samples were also counterstained with either the panneuronal chromogen cuprolinic blue or with nNOS antibodies and steel gray chromogen to label nitrergic cells.
Popular science sphere of communication: on the boarder of two worldviews
Authors: Kim Igor Efimovich , Ilina D ar`ya Vladimirovna
Published: December 2019

The article describes characteristics of popular science sphere of communication: aim and content of communication, communicative environment of the author and the reader, worldviews, circumstances of the communication. Comparison with adjacent spheres of communication is made. It is demonstrated that the content of the popular science sphere is derived from science sphere and placed into the reader’s non-professional environment; and all that determines existence of two views on the subject matter of the text. The first view is based on scientific knowledge, the second sight – on common sense. The author’s aim is to reconstruct the “naïve” worldview of the reader, to dispose it and to convince the addressee that the scientific view is real life. The more complete expression of these actions of the author is a framework which sets two semantic structures. Each of them consists of reference to the channel of information, predicate of “feeling-thinking-speaking”, and thesis. The first (left-hand) structure belongs to the reader’s “naïve” worldview, the second (right-hand) – to the author’s scientific sight. Language expression of the elements of this construction can be text fragments or zero. The latter is available due to standard meanings of qualificative categories of the modality of sentence – authorization and epistemic modality
Jarritos metálicos con tapadera y asa acodada de al-Andalus (siglos XII-XIII d.C.)
Authors: Azuar Ruiz Rafael
Published: December 2019

Presentamos el inventario y estudio de los jarritos con tapadera aparecidos en al-Andalus. Son de tipo piriforme con asa acodada y  tapadera, y presentan una decoración facetada o elipsoide. Sus precedentes son los jarritos fatimíes de tradición copta, de los siglos X-XI  y son una muestra de la metalistería andalusí de los siglos XII-XIII.
The Lists of Paradise Regained: An Economy of the Full and the Empty
Authors: Ferreira Sá Luiz Fernando
Published: December 2019

This article works from Madeleine Jeay’s Le Commerce des Mots (2006), Umberto Eco’s Infinity of Lists (2009), and Bernard Sève’s Philosophie des Listes (2010) to understand the abundance of lists in John Milton’s Paradise Regained. The lists in Paradise Regained emerge from the following conditions: the fantasy of chaos remaining an unfulfilled horizon, the complicated coherence among things escaping the worst disorder, and the tortuous cohesive power of analogy barely unifying a worldview by holding the chaos of reality at bay. In sum, the lists in the short epic would mark, as a manifestation, the trace, like the shadow, of the intractable fallen world within the very act of worldliness (much like the creation of an alternative Christian ethos), always leaving a space of nothingness necessarily paradoxical and in some ways astonishingly so.
Entre el exceso y la escasez. Testimonio y memoria en documentales sobre la militancia revolucionaria en Argentina y Brasil
Authors: Foglia Graciela
Published: December 2019

Hasta comienzos de los años 2000, en Argentina y Brasil, frente a la desproporción de la violencia estatal que exterminó a miles de militantes y no militantes, varios de los documentales que abordan esa temática se centraron en la memoria, entre reivindicativa y traumática, de la militancia y de la dictadura. Sin embargo, aunque en menor medida, en esas películas además de la reflexión y autocrítica sobre las acciones que condujeron al fracaso de la lucha revolucionaria, hay espacio para lo que el historiador italiano Alessandro Portelli llama “memoria perturbadora”. En este artículo se examinan e interpretan, en el marco de las reflexiones sobre testimonio, semejanzas y diferencias en el abordaje de las memorias traumáticas y perturbadoras en los documentales Errepé de Gabriel Corvi y Gustavo de Jesús (Argentina, 2003) y Tempo de resistência de André Ristum (Brasil, 2004).