bluuebunny/crossref_metadata_2025 huggingface dataset:
Theoretical and experimental research of anti-tank kinetic penetrator ballistics
Authors: Motyl K. , Magier M. , Borkowski J. , Zygmunt B.
Published: June 2017

A mathematical-physical model of the hypersonic anti-tank kinetic subcalibre projectile for 120 mm munition was built. Computer simulations of the projectile flight were performed for any angle of shooting, from 0° to 90°. Trajectories of projectile flights were determined considering all angles of shooting. Theoretical calculations were verified by experimental measurement of the projectile velocity in time while shooting on a test range. Some conclusions with regard to safety during hypersonic projectile shooting on the test range were formulated.
Thermal Insulating Properties of Straw-Filled Environmentally Friendly Building Materials
Authors: Petkova-Slipets Rositsa , Zlateva Penka
Published: June 2017

The paper presents results of a research for determination of a few general thermal-physical properties of environmentally friendly building materials made by clay, sand and straw. The aim of this study is to establish their heat insulating and energy-efficient capacity. All specific measurements were carried out by using the newest generation thermal conductivity analyser Mathis TCi.

The results showed that the studied composite materials are good thermal insulators with thermal conductivity less than 0.5 W/m.K, which depends on the straw amount. Even less than 0.5 wt.% straw reflects on the insulating properties by decreasing the thermal conductivity coefficient with nearly 50 %.
A Consistent Ayrton-Perry Approach for the Flexural-Torsional Buckling Resistance Evaluation of Steel I-Section Members
Authors: Giżejowski Marian , Stachura Zbigniew
Published: June 2017

Steel I-section members subjected to compression a monoaxial bending about the major axis are dealt with in this paper. The current Eurocode’s design procedure of such members is based on a set of two interpolation equations. In this paper a simple and yet consistent Ayrton-Perry methodology is presented that for beam-columns yields the Ayrton-Perry design strategy similar to that utilized in the steel Eurocodes for design of beams and columns but not used so far for the beam-column design. The results from developed design criterion are compared with those of Method 1 of Eurocode 3 and the Ayrton-Perry formulation of a different format that has been recently published.
Production of oxide coatings by sol-gel method and electrophoresis
Authors: Walczak Mariusz , Drozd Kazimierz
Published: June 2017

The paper reports the results of depositing SiO2 and SiO2-TiO2 coatings on titanium alloy Ti-6Al-4V ELI (ASTM-grade 5). Oxide coatings were deposited onto the titanium alloy substrate by sol-gel method and by electrophoresis. The produced coatings were chemically uniform, compact and highly dense. We then performed SEM microstructure examination, as well as microhardness and surface roughness measurements for different coating combinations. The significance of the results was assessed by the Shapiro-Wilk and t-Student tests using the STATISTICA software. It has been found that there are statistically significant differences in the hardness of SiO2 and SiO2-TiO2 coatings. The results of roughness parameters reveal significant differences only for individual coatings.
Variations of selected soil properties in the grass fields invaded and uninvaded by invasive goldenrod (Solidago canadensis L.)
Authors: Baranová Beáta , Fazekašová Danica , Manko Peter
Published: June 2017

Although the invasion of exotic plants has been recognised as the serious cause of the biodiversity loss and natural habitats degradation and threat to the ecosystems functions, just the little attention has been paid to the potential impacts of the goldenrod invasion on the soil properties. Equally, currently obtained results are contrary and ambiguous. We tested whether the grass fields invaded and uninvaded by Canadian goldenrod (Solidago canadensis L.) differ in pH, soil moisture, organic carbon (Cox), humus and P, K and Mg contents and related the variations to the chosen environmental variables. We did not find significant distinctions of the studied types of habitats in the selected physico-chemical soil properties as well as the relation between the goldenrod invasion and the changes in soil properties. Nevertheless, whereas the soil reaction, soil moisture and Mg content were higher in the invaded soils, the Cox, humus and P and K contents were higher in the uninvaded ones. Doubtless, further attention need to be paid to this problem.
Efficiency of Public and Nonpublic Primary Health Care Providers in Poland
Authors: Lachowska Anna
Published: June 2017

The main aim of the paper is to reveal the outcomes of a research based on the efficiency of primary health care providers. The scientific goal of the mentioned research was the development of an efficiency measurement model and verification of its usefulness in practice. Overall, the research found that it is possible to use the efficiency measurement model for health care providers. Besides, significant differences were discovered in the efficiency of public and nonpublic primary health care providers. The research was conducted in the West Pomeranian Voivodship in Poland. This paper contributes to the widespread debate on public and nonpublic ownership in the field of healthcare. Also, it has practical implications as the research findings may be useful for any healthcare sector stakeholder, from decision makers to patients. The research was based on the literature overview, which allowed to elaborate the efficiency measurement model. The empirical research (based on a form of questionnaires) allowed testing the proposed model. The described efforts allowed drawing conclusions on the efficiency of primary health care institutions in the West Pomeranian Voivodship. The following methods of data analysis are presented in the paper: synthetic measure of development (SMD), Ward’s method, and k-means method. According to the main conclusion of the research, it is possible to measure the efficiency of public and nonpublic health care providers of the Polish healthcare system. The proposed model for measuring the socioeconomic efficiency may be used as one of the tools used to measure the efficiency in the primary care. The verification of the usefulness of the model showed that nonpublic health care providers operating in the field of the public sector, outperformed public providers. The paper contributes to the theoretical field as it reveals a comprehensive approach to the efficiency measurement in the health care sector. The efficiency measurement model is based on the three major pillars of the healthcare sector, namely, income/resources, cost, and the social aspect. The elaborated efficiency measurement model for the healthcare sector was implemented and tested on a group of primary health care providers in the West Pomeranian Voivodship. The research allowed for positive conclusions regarding its usefulness in practice.
The beidellite clays from the Bełchatów lignite deposit as a raw material for constructing waterproofing barriers
Authors: Ratajczak Tadeusz , Hycnar Elżbieta , Bożęcki Piotr
Published: June 2017

Disposal sites for both industrial and communal waste are hazardous for the natural environment due to the accumulated materials and their chemical, physical and biological transformations. The products of these processes migrating at a significant distance contaminate mainly underground waters, surface waters and soils. The spreading of the pollutants may be prevented by horizons of clay rocks that form natural geological barriers. The clay rocks of properly selected parameters may be used in the environmental engineering for constructing artificial water-sealing layers. The mineral, chemical, physico-chemical and physico-mechanical properties of the beidellite clays occurring within the lignite deposit in Bełchatów were studied to find out whether they meet the criteria of waterproofing engineering contained in the Polish recommendations and instructions. The results indicate that the beidellite clays of Bełchatów are rocks suitable for this kind of environmental engineering and may be used in constructing the barriers preventing the migration of effluents from landfills.
Synthesis, antimicrobial activity and anti-biofilm activity of novel tetrazole derivatives
Authors: Dofe Vidya S. , Sarkate Aniket P. , Kathwate Santosh H. , Gill Charansingh H.
Published: June 2017

In the development of antimicrobial agents, we designed and synthesized novel tetrazole derivatives. The structures of compounds 6a–f and 7a–f were characterized by IR, 1H NMR, 13C NMR, MS and elemental analysis. These compounds were tested for their antimicrobial activity against a series of strains Staphylococcus aureus, Bacillus subtilis, Escherichia coli, and Pseudomonas aeruginosa and for antifungal activity against the strains Candida albicans, Candida glabrata, and Candida tropicalis. Compounds 6e, 6f, 7a, and 7f exhibit potent antimicrobial activities compared to the reference drugs streptomycin and miconazole. Tetrazole derivatives 7a–f also inhibit biofilm formation and compound 7f exhibits best anti-biofilm activity with a biofilm inhibitory concentration (BIC) as low as 0.9 μm.
Post Activation Potentiation of the Plantarflexors: Implications of Knee Angle Variations
Authors: Gago Paulo , Arndt Anton , Ekblom Maria M.
Published: June 2017

Flexing the knee to isolate the single joint soleus from the biarticular gastrocnemius is a strategy for investigating individual plantarflexor’s post activation potentiation (PAP). We investigated the implications of testing plantarflexor PAP at different knee angles and provided indirect quantification of the contribution of gastrocnemius potentiation to the overall plantarflexor enhancements post conditioning. Plantarflexor supramaximal twitches were measured in ten male power athletes before and after a maximal isometric plantarflexion (MVIC) at both flexed and extended knee angles. Mean torque and soleus (SOL
RMS
) and medial gastrocnemius (MG
RMS
) activity were measured during the MVIC. The mean torque and MG
RMS
of the MVIC were lower (by 33.9 and 42.4%, respectively) in the flexed compared to the extended position, with no significant difference in SOL
RMS
. After the MVIC, twitch peak torque (PT) and the rate of torque development (RTR) potentiated significantly more (by 17.4 and 14.7% respectively) in the extended as compared to the flexed knee position, but only immediately (5 s) after the MVIC. No significant differences were found in the twitch rate of torque development (RTD) potentiation between positions. It was concluded that knee joint configuration should be taken into consideration when comparing studies of plantarflexor PAP. Furthermore, results reflect a rather brief contribution of the gastrocnemius potentiation to the overall plantarflexor twitch enhancements.
Methods and magnitudes of rapid weight loss in judo athletes over pre-competition periods
Authors: Kons Rafael Lima , Athayde Marina Saldanha Da Silva , Follmer Bruno , Detanico Daniele
Published: June 2017

Purpose

The study aimed to analyse the methods and magnitudes of rapid weight loss (RWL) in judo team members in distinct periods before the biggest state competition in Southern Brazil.

Methods

Twelve male judo athletes took part in the study. The data collection was performed in three periods: (1) three months before the biggest state competition, (2) one week before the competition, (3) the day prior to the event. Anthropometric assessment and the Rapid Weight Loss Questionnaire were performed. Student’s t-test and ANOVA were applied, with the significance level set at p < 0.05.

Results

The main results showed that the majority of athletes reduced 7.1 ± 6.8 kg and started to lose weight to compete 13–16 years earlier. Increasing exercises (91.7%) and restricting fluid intake (41.7%) were the most frequent methods of weight loss. The judo coach/sensei was the person who most influenced the RWL procedure (58.3%). The athletes reduced 5% of their body weight (p < 0.01), 2.4% of their body fat (p < 0.01), and 2% of their fat-free mass (p = 0.04).

Conclusions

We conclude that RWL was a common and premature practice in the athletes in the study. The most common methods were increasing exercise volume and restricting fluid and food intake. The coach/sensei was the most influential person in this practice. The judo athletes presented decreases in body fat and fat-free mass during the period prior to the competition.
Accuracy of force repeatability in relation to its value and the subjects’ sex
Authors: Błacha Ryszard , Jastrzębska Agnieszka D.
Published: June 2017

Purpose

The purpose of the study was to determine the influence of force value and sex on force generation repeatability.

Methods

The total of 17 female and 24 male students performed 3 maximal voluntary contractions for maximal force (Fmax) calculation and 10 isometric contractions with targeted forces of 49 N, 98 N, 147 N by arms: elbow extension (EE), elbow flexion (EF) and legs: knee extensions (KE). Variation in repeatedly generated forces is expressed as a coefficient of variation.

Results

The force generation repeatability rose with the increase of triggered force in both sexes; between force target 49 N vs. 98 N and 147 N (p < 0.00) for EE and EF in females, between 49 N vs. 147 N for all measurements (p < 0.00) except the right elbow extension in males. We noticed minor sex influence on force generation repeatability for EE, EF, and KE in absolute measured values and relatively to Fmax.

Conclusions

The influence of force value and a minor influence of sex on accuracy in generated forces might suggest that the control of muscle force by the central nervous system is similar in both sexes and the sex differences in muscle force generations are rather of muscle mass and structure.
Tissue engineering and surgery: from translational studies to human trials
Authors: Vranckx Jan Jeroen , Hondt Margot Den
Published: June 2017

Tissue engineering was introduced as an innovative and promising field in the mid-1980s. The capacity of cells to migrate and proliferate in growth-inducing medium induced great expectancies on generating custom-shaped bioconstructs for tissue regeneration. Tissue engineering represents a unique multidisciplinary translational forum where the principles of biomaterial engineering, the molecular biology of cells and genes, and the clinical sciences of reconstruction would interact intensively through the combined efforts of scientists, engineers, and clinicians. The anticipated possibilities of cell engineering, matrix development, and growth factor therapies are extensive and would largely expand our clinical reconstructive armamentarium. Application of proangiogenic proteins may stimulate wound repair, restore avascular wound beds, or reverse hypoxia in flaps. Autologous cells procured from biopsies may generate an ‘autologous’ dermal and epidermal laminated cover on extensive burn wounds. Three-dimensional printing may generate ‘custom-made’ preshaped scaffolds – shaped as a nose, an ear, or a mandible – in which these cells can be seeded. The paucity of optimal donor tissues may be solved with off-the-shelf tissues using tissue engineering strategies. However, despite the expectations, the speed of translation ofin vitrotissue engineering sciences into clinical reality is very slow due to the intrinsic complexity of human tissues. This review focuses on the transition from translational protocols towards current clinical applications of tissue engineering strategies in surgery.
Scott convergence and fuzzy Scott topology on L-posets
Authors: Liu Hongping , Chen Ling
Published: June 2017

We firstly generalize the fuzzy way-below relation on an L-poset, and consider its continuity by means of this relation. After that, we introduce a kind of stratified L-generalized convergence structure on an L-poset. In terms of that, L-fuzzy Scott topology and fuzzy Scott topology are considered, and the properties of fuzzy Scott topology are discussed in detail. At last, we investigate the Scott convergence of stratified L-filters on an L-poset, and show that an L-poset is continuous if and only if the Scott convergence on it coincides with the convergence with respect to the corresponding topological space.
Modelling of Imbibition Phenomena in Fluid Flow through Heterogeneous Inclined Porous Media with different porous materials
Authors: Patel Hardik S. , Meher Ramakanta
Published: June 2017

In this paper, the counter - current imbibition phenomenon is discussed in an inclined heterogeneous porous media with the consideration of two types of porous materials like volcanic sand and fine sand. Adomian decomposition method is applied to find the saturation of wetting phase and the recovery rate of the reservoir. Finally, a simulation result is developed to study the saturation of wetting phase and the optimum recovery rate of reservoir with the choices of some interesting parametric values. This problem has a great importance in the field of oil recovery process.
Quantitative aspects of diffusion-weighted magnetic resonance imaging in rectal cancer response to neoadjuvant therapy
Authors: Bassaneze Thiago , Gonçalves José Eduardo , Faria Juliano Ferreira , Palma Rogério Tadeu , Waisberg Jaques
Published: June 2017

Background

The aim of the study was to evaluate the added value of the apparent diffusion coefficient (ADC) of diffusion-weighted magnetic resonance imaging (DW-MRI) in patients with rectal cancer who received neoadjuvant chemoradiotherapy (CRT). The use of DW-MRI for response evaluation in rectal cancer still remains a widely investigated issue, as the accurate detection of pathologic complete response (pCR) is critical in making therapeutic decisions.

Patients and methods

Thirty-three patients with locally advanced rectal cancer were evaluated retrospectively by MRI in addition to diffusion-weighted images (DWI) and its ADC pre- and post-neoadjuvant CRT. These patients subsequently underwent curative-intent surgery. Tumor staging by MRI and ADC value were compared with histopathological findings of the surgical specimen.

Results

MRI in addition to DWI had a sensitivity of 96.1%, specificity of 71.4%, positive predictive value of 92.5%, and negative predictive value of 83.3% in the detection of pCR. The pre-CRT ADC alone could not reliably predict the pCR group. Post-CRT ADC cutoff value of 1.49 x 10−3 mm2/s had the highest accuracy and allowed a 16.7% increase in negative predictive value and 3.9% increase in sensitivity. Patients with pCR to neoadjuvant treatment differed from the other groups in their absolute values of post-CRT ADC (p < 0.01).

Conclusions

The use of post-CRT ADC increased the diagnostic performance of MRI in addition to DWI in predicting the final pathologic staging of rectal carcinoma.
The “hamburger” story; or on Anglicisms in Polish
Authors: Polok Krzysztof
Published: June 2017

The paper makes an attempt to analyse the forms of co-functioning of world languages, taking into account the fact that popular prestigious languages exert influence upon a number of less popular ones, thereby dictating the forms of their further development. Thus, the thesis that media-favoured languages used by politically salient super-powers effectively influence the expressions accepted in a number of “less successful” languages is identified, evidenced and diagnosed. Furthermore, the latter part of the paper stresses the issues concerning the observation that English, recognized as the most prominent donor language, creates many forms of description generally used in many other languages to denote and define similar forms of experiences. Research aimed at discovering the ways in which English influences recipient languages, in this case Polish, was carried out. Our principal assumption was that there exist at least two types of numerous contacts between a donor and recipient language: ones that can be called external (when the donor language mostly influences the recipient one) and ones possibly labelled as internal (when various, normally observed forms of co-operation between the two languages can be traced). As in both cases some semantic bonds can be found, the subsequent research describes said bonds, naming them and uncovering the nature of such co-existence. The results of the research indicate clear forms of semantic co-existence showing that numerous borrowings and loanwords found in the recipient language are widely verbalized and deeply ingrained in the cultural linguistic interdependencies.
Being a Young Jobseeker in an Emerging Economy and Circular Economy – A Comparative Analysis of the Turkish and Hungarian Situations
Authors: Yavuzaslan Abdulkerim , Barişçil Ahmet
Published: June 2017

The goal of the present paper is to analyze the number of young job seekers and their particularities in two emerging economies, Turkey and Hungary, with help of the quantitative approach. Even though the two nations share the title of emerging economies as they have produced a relatively spectacular growth in the recent past, they also present a number of historical, political, cultural and economic discrepancies. Unemployment is one of the negative aspects of market economy, and a sign of the level of solidarity within the society, that of the respect and the utility of the young, the quality and market conformity of the educational system and many other facets of human existence. The number of young jobseekers can measure the efficiency of the policy makers and the managers but also depends on external and internal factors such as the habitat, the sex and the educational background of the young or the subsequent political and economic turmoil. The comparison conducted on the basis of data analysis of the two systems is aimed at proving that similarities and differences, results and failures can be a lesson to be learned for both newly developing countries.
Interaction of tubulin and protein kinase CK2 in Trypanosoma equiperdum
Authors: Boscán Beatriz E. , Uzcanga Graciela L. , Calabokis Maritza , Camargo Rocío , Aponte Frank , Bubis José
Published: June 2017

A polypeptide band with an apparent molecular weight of 55,000 was phosphorylated in vitro in whole-cell lysates of Trypanosoma equiperdum. This band corresponds to tubulin as demonstrated by immunoprecipitation of the phosphorylated polypeptide from T. equiperdum extracts when anti-α and anti-β tubulin monoclonal antibodies were employed. A parasite protein kinase CK2 was in charge of modifying tubulin given that common mammalian CK2 inhibitors such as emodin and GTP, hindered the phosphorylation of tubulin and exogenously added casein. Interestingly, a divalent cation-dependent translocation of the T. equiperdum tubulin and the CK2 responsible for its phosphorylation was noticed, suggesting a direct interaction between these two proteins. Additionally, this fraction of tubulin and its kinase coeluted using separations based on parameters as different as charge (DEAE-Sepharose anion-exchange chromatography) and size (Sephacryl S-300 gel filtration chromatography). Analyses by non-denaturing polyacrylamide gel electrophoresis and immunoblot of the purified and radioactively labeled fraction containing both tubulin and the CK2 enzyme, established the phosphorylation of a single band that was recognized by anti-CK2 α-subunit and anti-tubulin antibodies. All these findings revealed a physical association between a pool of tubulin and a CK2 in T. equiperdum.
The Initial Evaluation of Patients After Positive Newborn Screening: Recommended Algorithms Leading to a Confirmed Diagnosis of Pompe Disease
Authors: Burton Barbara K. , Kronn David F. , Hwu Wuh-Liang , Kishnani Priya S. ,   on behalf of the Pompe Disease Newborn Screening Working Group
Published: June 2017

Newborn screening (NBS) for Pompe disease is done through analysis of acid α-glucosidase (GAA) activity in dried blood spots. When GAA levels are below established cutoff values, then second-tier testing is required to confirm or refute a diagnosis of Pompe disease. This article in the “Newborn Screening, Diagnosis, and Treatment for Pompe Disease” guidance supplement provides recommendations for confirmatory testing after a positive NBS result indicative of Pompe disease is obtained. Two algorithms were developed by the Pompe Disease Newborn Screening Working Group, a group of international experts on both NBS and Pompe disease, based on whether DNA sequencing is performed as part of the screening method. Using the recommendations in either algorithm will lead to 1 of 3 diagnoses: classic infantile-onset Pompe disease, late-onset Pompe disease, or no disease/not affected/carrier. Mutation analysis of the GAA gene is essential for confirming the biochemical diagnosis of Pompe disease. For NBS laboratories that do not have DNA sequencing capabilities, the responsibility of obtaining sequencing of the GAA gene will fall on the referral center. The recommendations for confirmatory testing and the initial evaluation are intended for a broad global audience. However, the Working Group recognizes that clinical practices, standards of care, and resource capabilities vary not only regionally, but also by testing centers. Individual patient needs and health status as well as local/regional insurance reimbursement programs and regulations also must be considered.
Espacios ausentes. Conventillo, rancho y periferia: emergentes urbanos de la segregación. Rosario, Argentina (1900-1935)
Authors: Pascual Cecilia María
Published: June 2017

Este artículo analiza los significados culturales atribuidos a distintas figuras del hábitat popular en el período de crecimiento y consolidación de la trama urbana de la ciudad de Rosario, Argentina. A través de la triangulación de distintos tipos documentales se muestra cómo en la urdimbre representacional de los espacios segregados, el higienismo decimonónico trazó categorías de visibilización persistente sobre las zonas relegadas. El conventillo como forma cultural, que expresaba las desigualdades en el espacio urbano, se extendió hacia otras formas (rancho, casilla, vivienda autoconstruida) conservando los atributos negativos que diferentes voces articularon para nombrarlas. La emergencia de la periferia como expresión material y simbólica de la desafiliación social es continuidad de aquella imaginación espacial fraguada al calor del surgimiento de la ciudad moderna.
Acevedo Tarazona, Álvaro, y Jhon Jaime Correa Ramírez. 2016. Tinta roja. Prensa, política y educación en la Republica Liberal (1930-1946). El Diario de Pereira y Vanguardia Liberal de Bucaramanga. Bucaramanga: Universidad Industrial de Santander ISBN: 978-958-8956-06-0
Authors: Tellez Cesar Augusto Paredes
Published: June 2017

La prensa es transversal a la cotidianidad colombiana durante el siglo XIX y XX, también es una fuente documental del acontecer nacional, regional y local, finalmente es un producto de consumo cultural, pedagógico e ideológico que solo compartía voz con la radio al aparecer en escena la radiodifusora nacional. Es desde su valor comunicativo y papel histórico donde parten Álvaro Acevedo Tarazona y Jhon Jaime Correa Ramírez, los autores del libro Tinta roja. Prensa, política y educación en la Republica Liberal (1930-1946) El Diario de Pereira y Vanguardia Liberal de Bucaramanga.
William Bollaert y sus descripciones geográficas, cartográficas y antropológicas sobre la provincia de Tarapacá en la etapa inicial de la formación republicana del Perú, 1827-1854
Authors: Castro Castro Luis , Figueroa Cerna Carolina , Guerrero Oñate Pablo , Silva Torrealba Benjamín
Published: June 2017

El Estado peruano depositó en la exploración científica su confianza para configurar el territorio nacional e incorporarlo a su control desde inicios del siglo XIX. Esta nacionalización territorial se realizó con mapas y estudios geográficos a cargo principalmente de naturalistas, los que le permitieron a la elite dominante delinear y legitimar la aspiración de soberanía, proceso que tuvo una singular expresión en aquellos espacios considerados periféricos pero ricos en recursos naturales, como la lejana y meridional provincia de Tarapacá y sus yacimientos de salitre. En este contexto, abordamos las distintas expediciones realizadas por el químico inglés William Bollaert entre 1827 y 1854 en el marco político de un Perú independiente y republicano, con el propósito de verificar los vínculos entre la necesidad de la novel agencia estatal peruana por conocer mediante un registro racionalizado su territorio nacional, los afanes científicos del mencionado naturalista y las dinámicas tarapaqueñas de la época condicionadas por el proceso de formación del Estado-nación.
Líderes locales, liberalismo y autonomía en la Revolución Mexicana. Pahuatlán, Puebla, 1911–1914
Authors: López Meraz Óscar Fernando , Villegas Loeza Diana
Published: June 2017

El artículo analiza el proceso revolucionario en el municipio de Pahuatlán, ubicado en la Sierra Norte de Puebla (México), en el período de 1911 a 1914. El objetivo es aprehender las particularidades de ese espacio para conocer el impacto que tuvo en la vida cotidiana de sus habitantes. Las preguntas que dirigieron la investigación fueron: ¿cómo llega la Revolución en Pahuatlán? ¿Qué motivos impulsaron a los pahuatecos a formar parte del proceso revolucionario? ¿Cómo afectó su participación en la vida cotidiana? Asimismo, partimos de la hipótesis de que la participación pahuateca se debió a la intentona de los líderes políticos regionales para ejecutar los mandatos del Estado liberal en términos que fueran localmente aceptables; es decir, elaboraron una agenda local que proporcionara estabilidad política y social en el municipio basada en la defensa de la autonomía local, y no en la necesidad de una reivindicación agraria. A partir de un enfoque local, observamos cómo las características específicas que adquirió el movimiento revolucionario en Pahuatlán guardan una estrecha relación con lo acontecido a nivel nacional y estatal.
Memoria, arte y duelo: el caso del Salón del Nunca Más de Granada (Antioquia, Colombia)
Authors: Rubiano Pinilla Elkin
Published: June 2017

En este documento se analiza el trabajo de memoria colectiva realizado en el Salón del Nunca Más, ubicado en Granada (Antioquia). En este municipio, el Salón ha articulado distintas prácticas que, junto con la construcción de memoria, ha contribuido a que los sobrevivientes de la violencia y los familiares de personas asesinadas y desaparecidas simbolicen la pérdida mediante rituales públicos. Por otro lado, se indaga por los marcos visuales que construyen el acontecimiento, tanto la exposición de los hechos de violencia como de las prácticas de la comunidad granadina: lo que se hace en el Salón, el cubrimiento periodístico (la prensa), la fotografía documental (Jesús Abad Colorado) y el trabajo artístico (Erika Diettes). Para tal fin, se recurre a material de archivo, entrevistas y un marco conceptual interdisciplinario que transita por la historia, el psicoanálisis y las teorías de la imagen y la comunicación.
Organización del patrimonio cultural en Colombia: Una categoría inexplorada
Authors: Cabrera Martínez Alejandra María , Vidal Antonnino Vidal Ortega
Published: June 2017

En los últimos años ha surgido una preocupación por la organización cultural y el emprendimiento cultural como alternativa para hacer rentable la cultura. Aspectos de la vida que hasta el momento tuvieron un enfoque exclusivamente antropológico, lúdico o artístico se ven allanados por los discursos de la administración. Como consecuencia ha aparecido un movimiento en contra que ha impedido que visiones de la gestión más comprensivas sean usadas y aceptadas. Por su parte, los argumentos a favor parecen debatirse entre la sostenibilidad del negocio y la esencia de lo que el patrimonio simboliza y arropa. Este trabajo evalúa la producción científica alrededor del concepto Organización en la literatura sobre patrimonio cultural en Colombia, principalmente porque el uso del término (y no otros como empresa o negocio) da cuenta de una perspectiva de gestión más integradora. Para ello se realizó una revisión sistemática en las principales publicaciones y se hallaron 8 trabajos que contenían los términos de búsqueda. Se encontró que la palabra Organización es inusual, siendo más frecuente empresa privada o institución, para referirse específicamente a entidad pública. Se espera que en el futuro haya mayor investigación y trabajo transdisciplinario sobre la organización de patrimonio cultural.
Entrevista a Eduardo Santa: “Sin historia no hay vida”
Authors: Ramírez Bacca Renzo
Published: June 2017

Nació en el Líbano (Tolima, Colombia) hace noventa años, cuando su tierra natal era un centro de producción cafetera. Abogado de la Universidad Nacional de Colombia, en donde fue líder estudiantil. En Estados Unidos continuó su formación de posgrado en ciencias políticas en la Universidad George Washington en Washington, y en Técnicas de Investigación en la Universidad de Columbia en Nueva York.
DSM-5 diagnosis of Internet Gaming Disorder: Some ways forward in overcoming issues and concerns in the gaming studies field
Authors: Kuss Daria J. , Griffiths Mark D. , Pontes Halley M.
Published: June 2017

Background and aims

The current DSM-5 diagnosis of Internet Gaming Disorder (IGD; American Psychiatric Association [APA], 2013) has led to a number of issues and concerns that we highlighted in our recent paper (Kuss, Griffiths, & Pontes, 2017). Experts in the field responded to our evaluation of these issues resulting in six commentaries.

Methods

In this paper, we offer responses to the six commentaries to move the scientific field forward. All of the responses to our original paper highlighted many conceptual, theoretical, and/or methodological problems with the proposed IGD diagnosis as outlined in the DSM-5. We outline some ways forward in overcoming issues and concerns in the gaming studies field.

Results

We argue that rather than stigmatizing gaming per se, the role of scientists and practitioners is to establish a clear-cut distinction between someone who may use games excessively but non-problematically and someone who is experiencing significant impairment in their daily lives as a consequence of their excessive gaming. This responsibility needs to be shared by popular media who are often quick to build a moral panic around gaming behaviors, often based on cherry-picking specific case studies and pieces of research which support their headlines.

Conclusion

Researchers, practitioners, gaming developers, and the media need to work together and collaboratively to build a realistic and comprehensive understanding of gaming as a normal, enjoyable, and often beneficial sociocultural practice, which for a small minority of excessive users may be associated with the experience of addiction-related symptoms that may require professional support.
Detection of Extended Spectrum Beta-Lactamases Among Gram Negative Bacilli Recovered from Cattle Feces In Benin City, Nigeria
Authors: OGEFERE Helen Oroboghae , AGBE Salome O. , IBADIN Ephraim Ehidiamen
Published: June 2017

This study was carried out to determine the prevalence of extended spectrum beta-lactamase (ESBL) among Gram negative bacteria isolated from cattle feces in Benin City, Nigeria. A total of 250 Gram negative bacteria isolates were recovered from cattle feces and were processed microbiologically using standard techniques. Emergent colonies were identified and antibacterial susceptibility tests were determined using Kirby-Bauer disk diffusion method. All bacterial isolates were screened for the presence of ESBL using the double-disc synergy method. A total of 37 (14.8%) isolates were positive for ESBL, with 33 (13.2%) indicated by ceftazidime, while only 4 (1.6%) were indicated by both ceftazidime and cefotaxime (P < 0.0001). Of the Gram negative bacterial isolates recovered, Salmonella species was the most prevalent ESBL-producer with 55.0% prevalence (P = 0.0092), while no isolate of Pseudomonas aeruginosa produced ESBL. ESBL-positive isolates showed poor susceptibility to the tested antibacterial agents in comparison with non-ESBL-producers and imipenem was the most active antibiotic. The prevalence of ESBL among Gram negative bacilli recovered from cattle feces was 14.8%. The study advises prudent use of antibiotics in the treatment of cattle and harps on improved hygiene in managing cattle, as they are potential reservoirs of ESBL-producing organisms.
Correlative Evaluation of the Impact of Adaptive Plant Morphology on Bioactive Accumulation Based on Micro-Morphological Studies in Andrographis serpyllifolia (Rottler ex Vahl) Wight
Authors: KRISHNASWAMY Suma , KUSHALAPPA Bopaiah A.
Published: June 2017

Does the adaptive plant morphology actually hint at its potential bioactive profile? To understand and decipher this, a micro-morphological investigation was conducted on an arid zone plant. Andrographis serpyllifolia (Rohl.ex.vahl.) Wight is a slightly bitter, acrid endemic herb with fair history of ethno-botanical use among different tribes of peninsular India. A. serpyllifolia was a highly evolved geophyte well-suited for high survivability in extremely harsh terrain. This plant was found to grow and perpetuate successfully under high-stress conditions of water deficit, high soil and atmospheric temperatures, poor nutrition and constant threat from herbivores. Under such circumstances, this plant possessed the potential to develop morphological adaptations that produce and accumulate a wide range of phytochemicals that could preserve, protect and defend its plant body. The twin objectives of this study were to investigate the micro-morphological features and their functional advantage that enabled the plant to flourish in adverse conditions and interpret by deductive reasoning, the potential phytochemical array of this plant given the observed features. Scanning electron microscope was used to explore surface morphologies of various vegetative and floral parts. Key findings of this micro-morphological study were presence of numerous diacytic stomata on both adaxial and abaxial leaf surfaces, abundant glandular sessile trichomes on abaxial leaf surfaces, reticulate pollen ornamentation with echinate sulcus outlined with smooth morus and deeply reticulate, highly pitted spermoderm or seed testa reminiscent of human brain. These three features may serve as pharmacognostic markers aiding in accurate identification and quality control of this herb.
O fluxo de capital para as economias emergentes e o grau de desenvolvimento do sistema financeiro
Authors: Rocha Katia , Moreira Ajax , Silveira Marcos
Published: June 2017

Resumo O presente artigo tem como objetivo analisar o papel do sistema financeiro doméstico como mitigador de eventos de paradas súbitas e condicionante de fluxos de capital de um grupo de 14 economias emergentes no período de 1999-2013, em especial em face de cenários externos desfavoráveis como aumento dos juros internacionais e aversão ao risco global. Os países analisados - Argentina, Brasil, Chile, Colômbia, Indonésia, Malásia, México, Peru, Filipinas, Rússia, África do Sul, Tailândia, Turquia e Ucrânia representavam, em agosto de 2014, aproximadamente 80% do índice EMBIPLUS e 60% do índice EMBIGLOBAL. Procurou-se distinguir o efeito sobre diversos tipos de fluxos de capital: Fluxo de entrada de Investimento Externo Direto, Fluxo de entrada de Investimento em Carteira e Fluxo Líquido, com análise de robustez para período desde 1990 e aumento do número de países emergentes. O principal resultado suporta evidências que o fortalecimento do sistema financeiro doméstico - medido com a capitalização bursátil em proporção do PIB - propicia aumento dos fluxos de entrada de capital de todos os tipos de fluxos em todos os modelos analisados, reduzindo a probabilidade de ocorrência de parada súbita do fluxo de Investimento Externo Direto e em alguns casos do fluxo de Carteira, o que motiva políticas públicas que incentivem o desenvolvimento e fortalecimento deste setor. Estimativas também destacam o papel dos fundamentos domésticos, tão importantes quanto os fatores globais nos condicionantes de fluxo de capital e na ocorrência paradas súbitas. Este fato motiva políticas públicas que incentivem o fortalecimento e desenvolvimento das instituições nos países emergentes, e ressalta o papel dos governos na captação de recursos externos.
Aplicação de Análises de Ondaletas para Detecção de Ciclos e Extremos Pluviométricos no Leste do Nordeste do Brasil
Authors: Silva Djane Fonseca da
Published: June 2017

Resumo O presente artigo tem como objetivo identificar ciclos de extremos pluviométricos e de suas causas através das escalas temporais detectadas em séries de precipitação para as capitais do leste do Nordeste do Brasil. Para tanto, foram usados dados pluviométricos diários das capitais dos estados que compõem o leste do NEB com períodos em comum de 1961-2014 submetidos à Ondaleta Morlet. Todas capitais apresentaram a escala entre 1 e 2 anos, a escala de aproximadamente 7 anos, a escala de 11 anos, e a escala temporal de 20,2-22 anos. Com a aplicação da Análise de Ondaledas foram identificados anos com eventos/precipitações extremas e supõe-se como causas climáticas: sazonalidade, variabilidade interanual, ENOS, Dipolo do Atlântico, Manchas Solares e Oscilação Decadal do Pacífico. A forte influência do Oceano Atlântico e de seu Dipolo esteve presente em todas as séries de Precipitação de todas cidades estudadas.
Classificação de pacientes e carga de trabalho de enfermagem em terapia intensiva: comparação entre instrumentos
Authors: Ferreira Patrícia Cabral , Machado Regimar Carla , Martins Quênia Camille Soares , Sampaio Sueli Fátima
Published: June 2017

RESUMO Objetivos Avaliar as médias da carga de trabalho de enfermagem obtidas por meio do Nursing Activities Score (NAS), bem como os extratos do grau de dependência de pacientes obtidos pelo Sistema de Classificação de Pacientes de Perroca. Método Estudo prospectivo realizado na Unidade de Terapia Intensiva de um hospital privado o qual é referência em oncologia. Os instrumentos foram aplicados diariamente em uma amostra de 40 pacientes, com permanência mínima de 24 horas. Resultados Foram realizadas 277 medidas dos instrumentos, sendo a média do NAS de 69,8% (±24,1) e de Perroca de 22,7% (±4,2). As horas de cuidados encontradas por meio da média do NAS foi quase o dobro daquelas estimadas pelo de Perroca, demonstrando uma diferença de 7,3 horas. Conclusão NAS como instrumento de medida direta da carga de trabalho de enfermagem apresentou-se mais adequado quando comparado ao instrumento de medida indireta de Perroca, na Unidade do estudo.
Lime-based restoration paints: characterization and evaluation of formulations using a native species from the Amazon flora and PVA-based glue as additives
Authors: Silva Mayra Martins , Sanjad Thais Alessandra Bastos Caminha , Costa Marcondes Lima da , Costa Solange do Perpétuo Socorro Evangelista
Published: June 2017

Abstract Based on historic documents, two lime-based paint formulations were produced in laboratory in order to evaluate their basic characteristics as restoration materials for historic buildings with lime-based components. The paints were made basically with hydrated lime, clay, water and linseed (Linum usitatissimum L.) oil, and one formulation had PVA (polyvinyl acetate)-based glue as fixative, and the other one, Couma guianensis' latex. Each paint component was characterized by XRD and FTIR, and color and specular gloss measurements were performed on both paints. A preliminary assessment of the paints was conducted using the Pipe Method, the salt crystallization test, visual analysis for dustiness, and analysis of microbiological growth. The results showed that the laboratory-produced paints are theoretically and technologically compatible with lime-based coatings, however, their superficial performance can be improved to achieve greater durability. This study also brings to light local materials from the Amazon region that have great potential to be used and recognized as raw materials for paints and which could also be investigated for other uses.
Numerical and experimental analysis of the shear capacity of interconnected concrete block walls
Authors: Oliveira Luciane Marcela Filizola de , Corrêa Márcio Roberto Silva
Published: June 2017

Abstract Predicting the behavior of interconnected masonry walls is a challenging issue, given the influence of a wide range of factors, such as the mechanical properties of the materials (blocks and mortar) and the way the walls are connected to each other. In this paper, experimental results in H-shaped walls subjected to shear at the vertical interface are introduced with a numerical representation. Concrete blocks and two types of connections (running bond and U-steel anchors) were considered in the tests. Computational modelling was carried out using the Diana® FEM software to complete the study and understand the structural behavior of the masonry panels. The influence of the bonding pattern on the experimental and numerical response was studied and good agreement between the results was found. Moreover, the numerical analysis showed that the computer models of the interconnected walls adequately represented the behavior of the physical models regarding load capacity and cracking patterns.
Microstructures and grease layer of water strider and its influence on superhydrophobicity
Authors: Gao Ying , Xiang Qian , Wang Yi , Men Yuzhuo , Yang Xiaodong , Wang Qingcheng , Yang Zhuojuan , Geng Xiaohui
Published: June 2017

In this paper, the microstructures of the water strider surface were observed by scanning electron microscopy. The surfaces, including wings, legs, back and abdomen, all exhibited various compound microstructures, which are the important factors influencing the superhydrophobicity with a contact angle (CA) of up to 153°. Furthermore, the grease of the water strider on different substrates was studied by self-assembly of the grease for 14 d. Images of the grease indicated that the morphology and spatial orientation of the grease depend on the substrate chosen. The grease decreased the substrate wettability by approximately 30° on highly ordered pyrolytic graphite and about 23° on the silicon substrates. Gas chromatography combined with mass spectrometry was also used to study the chemical composition of the grease layer of water strider surface. The grease layer is composed of a mixture of aliphatic compounds, which possess hydrophobicity based on the chemical structure. Grease protects the microstructures of water strider surfaces and thus results in higher CAs and hydrophobic properties. The microstructure and the grease of the water strider jointly render the hydrophobic properties of the water strider surface.