bluuebunny/crossref_metadata_2025 huggingface dataset:
Spectra universally realizable by doubly stochastic matrices
Authors: Collao Macarena , Salas Mario , Soto Ricardo L.
Published: July 2018

A list of complex numbers Λ = { λ1, . . . , λn} is said to be realizable if it is the spectrum of an entrywise nonnegative matrix, and universally realizable if there exists a nonnegative matrix with spectrum Λ for each Jordan canonical form associated with Λ. The problem of characterizing the lists which are universally realizable is called the nonnegative inverse elementary divisors problem (NIEDP). This is a hard problem, which remains unsolved. A complete solution, if any, is still far from the current state of the art in the problem. In particular, in this paper we consider the NIEDP for generalized doubly stochastic matrices, and give new sufficient conditions for the existence and construction of a solution matrix. These conditions improve those given in [ELA 30 (2015) 704-720]
Interrelationship between Undrained Shear Strength from DMT and CPTU Tests for Soils of Different Origin
Authors: Młynarek Zbigniew , Wierzbicki Jędrzej , Stefaniak Katarzyna
Published: July 2018

The article presents test results on the use of the flat dilatometer test (DMT) to evaluate changes in undrained shear strength su in soils of various origins. Reference values for the undrained shear strength calculated with Marchetti’s original formula were su values obtained from the piezocone penetration tests. The tests were conducted at eight investigation sites in Poland, where five groups of soils were separated: loess-deluvial, loess-deluvial cemented, young till, aged till, and Pliocene clay. The soils exhibited varied overconsolidation effects. The study results revealed that the factors influencing the relationship between undrained shear strength and the KD coefficient from DMT test were various because of the origin, grain size distribution of the soils and cementation. In order to include the influence of overconsolidation and grain size distribution in calibration of su from DMT, a modified KD1 coefficient was introduced into the formula describing this relationship. The final solution was obtained with multiple linear regression. A relatively high statistical evaluation of this relationship was determined for aged till and deluvial and uncemented loess.
Integración del sistema de gestión de la seguridad y salud en el trabajo en el sistema de gestión de calidad en las entidades públicas colombianas de orden nacional
Authors: Daissy Peralta Peralta Cruz , Guataquí Cervera Schneider
Published: July 2018

En este artículo se presentan los resultados de una investigación en la cual se propone una metodología de integración del sistema de gestión de la seguridad y salud en el trabajo (SG-SST) en el sistema de gestión de calidad (SGC) en las entidades públicas colombianas de orden nacional. Lo anterior, dado la obligatoriedad de su implementación establecida en el Decreto 1072 de 2015 para todos los empleadores públicos y privados, y la Ley 872 de 2003 que establece el SGC en los organismos y entidades por servicios de la rama ejecutiva del poder público del orden nacional, entre otras. La investigación se desarrolló en cuatro etapas: revisión de la literatura identificando herramientas, estrategias y referentes teóricos de integración y validación; análisis de correspondencia de los requisitos integrables; elaboración de la propuesta metodológica estructurada con base en las directrices de la ILO-OSH-2001 y la validación de contenido de la propuesta con expertos. De acuerdo con lo anterior, esta metodología se convierte en una herramienta orientadora que brinda beneficios en la gestión institucional como controles integrados, mejora en la prestación del servicio, reducción de las interrupciones en el trabajo, prevención de sobrecostos y sanciones administrativas.
Propuesta de una política de incentivos para la acreditación de las IPS en Colombia
Authors: Rodríguez Vera Jerson Alexander , Aznate Puello Oscar Antonio
Published: July 2018

Los usuarios que acceden a los servicios de salud en Colombia buscan que las Instituciones Prestadoras de Servicios de Salud (IPS) atiendan sus necesidades y expectativas, mediante un servicio humanizado y seguro; cuando tales características no se perciben, sobrevienen las quejas por insatisfacción ante los entes gubernamentales. El sistema único de acreditación (SUA), ofrece estándares superiores de calidad que tendrían un impacto positivo frente a esta problemática, no obstante, la mayoría de las IPS en Colombia no lo adoptan. El objetivo general de la investigación realizada considera la propuesta de una política de incentivos para la acreditación de IPS en Colombia, a partir del análisis de los factores que inciden en la decisión de acreditarse y de la evaluación de los incentivos dispuestos por el Gobierno para ello. La información fue recopilada a través de una encuesta dirigida tanto a no acreditadas como a las acreditadas, y por medio de entrevistas semiestructuradas a expertos en acreditación. La estrategia de muestreo planteada consistió en un muestreo bietápico, que permite obtener un margen de error bajo y realizar inferencia a toda la población de IPS del país y por zona. Se logró la respuesta de 254 IPS. Se concluyó que tanto las IPS como los expertos en acreditación, consideran que la acreditación puede convertirse en estrategia para el cumplimiento de metas organizacionales, mejora en la prestación de los servicios de salud, aumento de la satisfacción del usuario y otorgamiento de prestigio institucional.
Compañía, buenos días, de pie. Construcción del cuerpo militar
Authors: Otálora María Camila
Published: July 2018

Este trabajo se desarrolla en la Escuela Militar de Cadetes José María Córdova en Bogotá, donde a partir de un trabajo etnográfico de observación participante, entrevistas y captura de imágenes durante más de un año, se responde a la inquietud sobre cómo preparan los cadetes sus cuerpos en la institución hasta alcanzar el título de subtenientes del Ejército Nacional. La institución se encuentra en un momento coyuntural de cambios relacionados al posconflicto y al respeto de los derechos humanos que han transformado la estructura de enseñanza militar. De acuerdo a las nuevas necesidades de la institución, se busca una formación integral que le enseñea los cadetes formas básicas como comer, dormir, bañarse, el manejo estratégico de las armas y la formación académica universitaria, todo esto durante cuatro años de educación permanente, donde el cuerpo de los jóvenes se constituye como reflejo del cuerpo del Ejército.
Books Reviewed by: Kelly Schultz, Martin Chandler, Andrew Nicholson, Erika Reinhardt, Larry Laliberté
Authors: Simpkin Sarah
Published: July 2018

Clemmer, Gina. The GIS 20 Essential Skills, third edition. Redlands, California: Esri Press, 2017. 182p. $49.99 US. ISBN 9781589485129.

Davidson, Peter. Atlas of Empires. Pennsylvania: Fox Chapel Publishing, 2018. 240p. $19.99 US. ISBN 978-1504800891.

Davies, John and Kent, Alexander J. The Red Atlas; How the Soviet Union secretly mapped the World. Chicago: University of Chicago Press, 2017. 272 p. $35.00 US. ISBN: 9780226389578.

Johnson, Alexander. The First Mapping of America: The General Survey of British North America. New York: I.B. Tauris & Co. Ltd., 2017. 320 p. $110 US (hardcover). ISBN: 978-1-806-442-9.

Shoalts, Adam. A History of Canada in Ten Maps, Epic Stories of Charting a Mysterious Land. Canada: Allen Lane, 2017. 344p. $36.00 CAD. ISBN 978-0-670-06946-0.
“world-startling discovery” - Stories in the Canada Lands Survey Records
Authors: McFall Roddy
Published: July 2018

In 2017, a small collection of survey plans in the custody of Library and Archives Canada (LAC) grew exponentially when Natural Resources Canada’s Office of the Surveyor General transferred over 90,000 original survey maps and field books from the Canada Lands Survey Records (CLSR). Dating as early as 1769, these underused archival records document the survey, settlement, and sustainable use of Crown Lands. Among many other things, the CLSR collection documents Canada’s Indigenous history and culture such as the distribution of language groups, treaty rights, the location of Residential Schools and Indian reserves, and Indigenous land use and occupation. Through these, we can see the history of Indian reserves, National Parks, military bases, railway development, the fur trade, and the Arctic. As we will see, the records also help tell the story of the significant Indigenous contribution to the Klondike Gold Rush.
PENGARUH TOTALITAS KERJA DAN MODAL PSIKOLOGIS TERHADAP KEPUASAN KERJA DRIVER GOJEK DI JAKARTA SELATAN
Authors: Citradewi Ardisa , Soebandono J. P.
Published: July 2018

This study aims to determine the effect of the work engagament and psychological capital to job satisfaction drivers gojek. Through this research is expected to find out how far the influence of the totality of work and psychological capital on the drivers of gojek. This research uses quantitative approach with regression analysis method, and validation test of construct using Confirmation Factor (CFA) technique. The sample numbered 175 drivers gojek. The sample of research was determined by using non probability sampling technique. The data collection instrument using Job Satisfaction Survey (JSS) developed by Spector, Utrecht Work Engagement Scale (UWES) was developed by Schaufeli and Bakker and Psychological Capital Questionner (PCQ-24) developed by Luthans, Avolio, et al., 2007. The results of this study indicate that there is a significant influence of the variable influence of work engagement and psychological capital with a significance value of 0.000 or p <0.05 to job satisfaction. So the nil hypothesis (Ho) that exist in the major hypothesis in this study was rejected. The result of the test of the minor hypothesis examining the influence of 7 IV, there are two nil hypothesis (Ho) rejected, it means that there are two IV that have significant effect on job satisfaction, the absorption and resilience variable, while the vigor variable, dedication, self efficacy, optimism and hope effect on job satisfaction. DOI:10.15408/tazkiya.v22i2.8405
Early Adolescents’ Digital Gameplay Preferences, Habits and Addiction / Preferencije, navike i ovisnost mlađih adolescenata o digitalnim igrama
Authors: Aleksić Veljko
Published: July 2018

AbstractThe paper provides an empirically grounded innovative and unique insight into relations between digital gameplay preferences, habits and addiction. The research sample consisted of 1262 eleven-to-fifteen-year-old students from 22 Serbian schools. An adequate psychometric instrument was developed and evaluated as part of the research. The influence of socio-demographic factors on digital gameplay preferences, habits and addiction was analyzed. Research hypotheses have been proposed in accordance with research objectives. They have been confirmed since the obtained results support the existence of the relation between digital gameplay and addiction among early adolescents.Key words: digital games; early adolescents; gameplay addiction.---SažetakU radu se daje empirijski utemeljen inovativan i jedinstven uvid u odnose između preferencija,  navika i ovisnosti o digitalnim igrama. Uzorak istraživanja sastojao se od 1262 učenika iz 22 škole u Srbiji, u dobi od 11 do 15 godina. Dio istraživanja odnosio se na razvoj i evaluaciju odgovarajućeg psihometrijskog instrumenta. Analiziran je utjecaj socio-demografskih čimbenika na preferencije, navike i ovisnost o digitalnim igrama. U skladu s istraživačkim ciljevima i zadaćama formulirane su istraživačke hipoteze, koje su potvrđene. Rezultati upućuju na postojanje veze između digitalnih igara i ovisnosti kod mlađih adolescenata.Ključne riječi: digitalne igre; mlađi adolescenti; ovisnost o igrama.
Digital Drama versus Digital Story: Do They Really Matter on Pre-Service EFL Teachers’ Attitudes towards Instructional Technologies and Material Developing Skills / Digitalna drama nasuprot digitalnoj priči: jesu li uopće važne za stajališta budućih učite
Authors: AKAY Cenk
Published: July 2018

AbstractInstructional technologies and material designing are two important factors in English as a foreign language (EFL) learning. There are several applications which support the attitudes and skills of pre-service teachers in their undergraduate education. Digital drama and digital story are among them. While there is a satisfactory number of studies on digital story, there are a very few of them on digital drama. Actually, this paper has two main purposes. The first one is to raise an awareness of digital drama. The second one is to reveal the impact of these two digital applications on pre-service EFL teachers’ attitudes towards instructional technologies and material designing skills. The results indicated that, while the digital story application had a significant effect, the digital drama application had a liminal significant effect on their attitudes towards instructional technologies. On the other hand, both applications had an effect on the material designing skills of the target participants. Finally, the results suggested that using digital materials in class enhances pre-service teachers’ motivation to use instructional technologies and develop their material designing skills. Key words: digital drama; digital story; instructional technologies.---SažetakPrimjena nastavnih tehnologija i izrada materijala dva su važna čimbenika u učenju engleskog kao stranog jezika. Postoji nekoliko aplikacija koje pridonose razvoju stajališta i vještina dodiplomskih studenata, budućih učitelja. Među njima su digitalna drama i digitalna priča. Broj istraživanja o digitalnoj priči je zadovoljavajuć, ali samo je nekoliko istraživanja o  digitalnoj drami. Ovaj rad zapravo ima dva glavna cilja. Prvi se odnosi na pokušaj razvijanja svjesnosti o digitalnoj drami, a drugi ukazuje na učinkovitost tih dviju digitalnih aplikacija kada su u pitanju stajališta budućih učitelja engleskog kao stranog jezika o vještinama potrebnim za primjenu tehnologija u nastavi i izradu materijala. Rezultati su pokazali da primjena digitalne priče ima značajan učinak, a da digitalna drama ima ograničeno značajan učinak na stajališta o nastavnim tehnologijama. S druge strane, obje su aplikacije za buduće učitelje učinkovite u pogledu vještina za izradu materijala. Na kraju, rezultati ukazuju na to da uporaba digitalnih materijala u nastavi poboljšava motivaciju budućih učitelja za primjenu nastavne tehnologije i razvija njihove vještine izrade materijala.Ključne riječi: digitalna drama; digitalna priča; nastavne tehnologije.
A School-Based Curriculum Development for the Teaching Principles and Methods Course/Izrada školskog kurikula za kolegij Nastavna načela i metode
Authors: Yeşilpınar Uyar Melis , Doğanay Ahmet
Published: July 2018

Abstract The purpose of this study is to develop a school-based curriculum for the Teaching principles and methods course. The study was designed as action research. In this context, the implementation process was carried out in a 14-week period with the participation of 36 sophomore students taking the Teaching principles and methods course at a State University, Faculty of Education, Department of Classroom Teaching, in the fall semester of the academic year 2014/2015. Observations, interviews and document analysis were used to collect data. According to the findings, it was observed that the problems encountered in the implementation process were mainly associated with the insufficiency of the time allocated to the course for all learning outcomes in the guideline draft that directed the action plans, the functional implementation of peer assessment process, and the seating arrangement within the group. Most of these problems were tackled in the action research process so that the difficulties that students had during the course decreased, while the number of participants who found the implementations satisfactory increased.Key words: action research; school-based curriculum development; Teaching principles and methods course; teacher education.---SažetakCilj je ovog istraživanja izraditi školski kurikul za kolegij Nastavna načela i metode primjenom dizajna akcijskog istraživanja. U tom kontekstu provedba istraživanja trajala je 14 tjedana, a u njemu je sudjelovalo 36 studenata druge godine Učiteljskog fakulteta Državnog sveučilišta, smjera Razredna nastava, koji su pohađali kolegij Nastavna načela i metode u zimskom semestru akademske godine 2014./2015. Promatranje, intervju i analiza dokumenata koristili su se za prikupljanje podataka. Na temelju rezultata uočeno je da su problemi koji su se pojavili u procesu provedbe uglavnom povezani s nedovoljnom količinom vremena planiranog za kolegij kako bi se ostvarili svi ishodi navedeni u smjernicama koje su određivale akcijski plan, funkcionalnu provedbu kolegijalne evaluacije i raspored sjedenja za vrijeme nastave. Većina tih problema spomenuta je tijekom akcijskog istraživanja, pa je umanjen broj poteškoća s kojima su se studenti susretali tijekom kolegija, a broj se sudionika koji su smatrali da je njegova provedba zadovoljavajuća povećao.Ključne riječi: akcijsko istraživanje; razvoj školskog kurikula; kolegij Nastavna načela i metode; izobrazba nastavnika.
Transforming Tertiary EFL Learners’ Meta-Linguistic Knowledge and Practices: A Longitudinal Case Study/Preoblikovanje metalingvističkog znanja i metoda učenja engleskoga kao stranoga jezika na tercijarnoj razini: longitudinalna studija slučaja
Authors: Zhang Xiaodong
Published: July 2018

Abstract This study reports on how the explicit teaching of language use as meaning-making in context (i.e., language use as a dynamic interaction between context, meaning, and linguistic features) impacted tertiary English as a foreign language (EFL) learners’ meta-linguistic knowledge of the English language, as well as their language learning practices. Based on a qualitative analysis of interviews, conversations, and written samples gathered from one college-level EFL student over one academic year, the study shows that the EFL student’s appropriation of a new meta-linguistic perspective of language use as meaning-making in context — which differed from her previous understandings of language use as de-contextualized sentential accuracy — was a process of interacting with diverse factors. These factors included her passion for challenging herself and constructing her professional identity. Additionally, over the year, the EFL student also adopted corresponding language literacy practices, which resonates with the endorsed language literacy valued by authentic English language communities.Key words: English as a foreign language; language learners; meaning-making; systemic functional linguistics; transition.---Sažetak Ovo istraživanje govori o načinu na koji je eksplicitno poučavanje upotrebe jezika putem stvaranja značenja u kontekstu (tj. upotrebe jezika kao dinamične interakcije između konteksta, značenja i lingvističkih obilježja) utjecalo na metalingvističko znanje studentice engleskoga kao stranoga jezika na tercijarnoj razini, kao i njezinih metoda učenja jezika. Utemeljeno na kvalitativnoj analizi intervjua, razgovora i pisanih uzoraka skupljenih tijekom jedne akademske godine od učenice engleskoga kao stranoga jezika na fakultetskoj razini, istraživanje pokazuje da je stjecanje nove metalingvističke perspektive upotrebe jezika kao stvaranja značenja u kontekstu – što se razlikovalo od prijašnjih spoznaja upotrebe jezika kao dekontekstualizirane rečenične točnosti – bio proces interakcije s različitim čimbenicima. Ti su čimbenici uključivali njezinu strast za izazovnim zadatcima i izgradnjom vlastitog profesionalnog identiteta. Dodatno, tijekom godine, učenica je također usvojila odgovarajuću razinu jezične pismenosti koja se podudara s prihvaćenom jezičnom pismenošću cijenjenom u autentičnim engleskim jezičnim zajednicama. Ključne riječi: engleski kao strani jezik; učenici jezika; stvaranje značenja; sistemska funkcionalna lingvistika; tranzicija.
Transmissible silver resistance readily evolves in high-risk clone isolates of Klebsiella pneumoniae
Authors: Hanczvikkel Adrienn , Füzi Miklós , Ungvári Erika , Tóth Ákos
Published: July 2018

Silver is used extensively in both hospitals and outpatient clinics as a disinfectant coating agent on various devices. Resistance to silver was recently reported as an emerging problem inEnterobacteriaceae.Multidrug-resistant high-risk clones ofKlebsiella pneumoniaeare common causes of serious healthcare-associated infections worldwide posing a serious threat to patients. In this study, we investigated the capacity of both high-risk (CG14/15 and CG258) and minor clone strains ofK. pneumoniaeto develop resistance to silver. Resistance was inducedin vitroin silver-susceptible but otherwise multidrug-resistant clinical isolates. Genetic alterations in the silver-resistant derivative strains with regard to the silver-susceptible isolates were investigated by whole-genome sequencing. The transferability of high-level resistance to silver was also tested. We demonstrated that the high-level resistance to silver can quickly evolve as a consequence of a single-point mutation either in thecusS gene of the chromosomally encoded CusCFBARS efflux system and/or in thesilS gene of the plasmid-encoded Copper Homeostasis and Silver Resistance Island (CHASRI) coding also for a metallic efflux. The minimal inhibitory concentrations (MICs) of the strains increased from 4 mg/L (23.5 μM) AgNO3to >8,500 mg/L (>50,000 μM) AgNO3during induction. Harboring the CHASRI proved an important selective asset forK. pneumoniaewhen exposed to silver. Successful conjugation experiments usingEscherichia coliK12 J5-3Rifas recipient showed that high-level silver resistance can transmit between strains of high-risk clones ofK. pneumoniae(ST15 and ST11) and isolates from additional species ofEnterobacteriaceae. The lack of fitness cost associated with the carriage of the CHASRI in a silver-free environment and the presence of the RelEB toxin–antitoxin system on the conjugative plasmids could advance the dissemination of silver resistance. Our results show that multidrug-resistant high-risk clones ofK. pneumoniaeare capable of evolving and transmitting high-level resistance to silver. This observation should warrant a more judicious use of silver coated-devices to prevent the extensive dissemination of silver resistance.
The Application of Three-Dimensional Printing Model and Platelet-Rich Fibrin Technology in Guided Tissue Regeneration Surgery for Severe Bone Defects
Authors: Lei Lihong , Yu Yuanyuan , Ke Ting , Sun Weilian , Chen Lili
Published: July 2018

A 36-year-old male patient diagnosed with severe chronic periodontitis was treated with novel surgery for his maxillary right lateral incisor. Preoperatively, a 3D printer was used, based on CBCT datasets, to produce a photosensitive resin bony anatomy replica. The patient's blood was centrifuged to obtain advanced platelet-rich fibrin (A-PRF) and injected platelet-rich fibrin (I-PRF), then mixed with Bio-Oss and packed onto the 3D replica to form the ideal shape. The replica was positioned at the planned sites without changes. The A-PRF membrane was applied over the replica as well as a Bio-Gide collagen membrane. Fifteen months after the surgery, clinical and radiographic followup revealed greatly reduced pocket depths and significant 3D alveolar bone fill at the treatment site. Based on these short-term results, the initial 3D printing surgical temple assisted guided tissue regeneration method resulted in significant clinical and radiographic improvements; A-PRF/I-PRF should be considered an ideal biomaterial for regenerative periodontal therapy.
360-Degree Feedback Model to Enhance Interprofessional Learning
Authors: Awdishu Linda , Zheng Amy , Gerd Granas Anne , Galasso Janine , Macauley Karen , Butera Cheryl , Hutchins Sophie , Wallace Peggy , Garman Karen , Namba Jennifer
Published: July 2018

This article was migrated. The article was marked as recommended. Background: Providing meaningful feedback in interprofessional education (IPE) requires knowledge of discipline specific responsibilities and a method for measuring team dynamics while capturing individual performance. Methods: We implemented a 360-degree performance feedback model for a large-scale IPE simulation with standardized patients (SP) who transitioned from primary care to the emergency department. 293 medical, nursing, and pharmacy students were divided into 72 teams. We conducted a retrospective study evaluating feedback from 108 facilitators on individual and team based competencies, 12 SP patient satisfaction surveys and 293 student self-appraisals. We analyzed data using descriptive statistics and ANOVA for multiple group comparisons. Results: More than 94% of SP indicated they would return to the same student team to seek care. However, SP reported that the students did not summarize or clarify information, adapt to their level of understanding or encourage questions. Facilitators noted all disciplines were involved in formulating and implementing treatment plans. Student teams performed highest in mutual support and situational monitoring, and lowest in leadership and team structure. Students across all disciplines rated their teams as requiring light to no supervision. Conclusion: Applying the 360-degree performance model is feasible in IPE and provides multidimensional, qualitative feedback to enhance student learning.
Nonparametric Regression-based Step-length Estimation for Arm-swing Walking using a Smartphone
Authors: Truong Phuc Huu , Nguyen Nhan Duc , Ho Ngoc-Huynh , Jeong Gu-Min
Published: July 2018

In this paper, we propose an adaptive step-estimation method to estimate the distance traveled for arm-swinging activities at three level-walking speeds, i.e., low, normal, and high speed. The proposed method is constructed based on a polynomial function of the pedestrian speed and variance of walking acceleration. We firstly apply a low-pass filter with 10 Hz cut-off frequency for acceleration data. Then, we analyze the acceleration data to find the number of steps in each sample. Finally, the traveled distance is calculated by summing all step lengths which are estimated by the proposed method during walking. Applying the proposed method, we can estimate the walking distance with an accuracy rate of 95.35% in a normal walking speed. The accuracy rates of low and high walking speeds are 94.63% and 94.97%, respectively. Furthermore, the proposed method outperforms conventional methods in terms of accuracy and standard deviation at low, normal, and high speeds.
Improving DTNs Performance by Reduction of Bundles Redundancy using Clustering Algorithm
Authors: Olgierd Schoeneich Radosław , Prus Piotr
Published: July 2018

This article presents complex clustering algorithm for Delay Tolerant Networks (DTNs) including neighborhood discovery, cluster creation, and data distribution within cluster. The general idea is to reduce the amount of messages being sent and of buffer utilization, by taking advantage of the nodes tendency to create groups and to share similar mobility patterns among each other. The main purpose of the algorithm is to improve the network performance without major changes in communication schemes between nodes. Almost no extra message type is added. Most extra features are available thanks to adding small extra fields into transmitted packages. Neighborhood discovery is being realized passively by listening to other nodes messages. The proposed algorithms allow to reduce both the bandwidth occupation, as well as the problems related to the media access. Furthermore, it can increase message delivery probability thanks to intelligent package distribution inside created cluster. Simulations were carried out to evaluate the effectiveness of the proposed solution in terms of package delivery probability, mean buffer occupancy and mean hop number to delivery the message. Results of simulation show that this solution is not necessary or recommended for small-scale networks with few nodes using clustering algorithms. However, with increasing number of nodes and messages, the performance of non-clustered DTNs drops significantly while clustered network works efficiently.
CURRÍCULO DA EDUCAÇÃO INFANTIL - CONSIDERAÇÕES A PARTIR DAS EXPERIÊNCIAS DAS CRIANÇAS
Authors: Santos Sandro Vinicius Sales dos
Published: July 2018

RESUMO: O artigo analisa os sentidos produzidos pelas crianças sobre a experiência educativa. A partir de um quadro teórico que articula os Estudos da Infância, a teoria de Walter Benjamin, a Sociologia da Experiência de François Dubet e as Pedagogias da Infância e da Educação Infantil, busca-se compreender como as falas e as ações das crianças contribuem para a proposição de um currículo por campos de experiências. O estudo de caso foi realizado com um grupo de crianças de quatro anos de idade durante o ano de 2012 em uma instituição pública de Educação Infantil. Os dados foram produzidos por meio de observação participante; desenhos e fotografias elaboradas pelas crianças (conjugadas com suas falas) e entrevistas. Verificou-se que as crianças produzem sentidos sobre as práticas de cuidado e educação que podem se tornar elementos úteis na proposição de um currículo por campos de experiência para as instituições de Educação Infantil.
Rooting of Tineke and Natal Briar rose stem cuttings in different substrates
Authors: Ritter Giovana , Hojo Ellen Toews Doll , Villa Fabíola , Silva Daniel Fernandes da
Published: July 2018

ABSTRACT: The commercial propagation of rose bushes is carried out asexually by the cutting method. The genetic material and the substrate are factors that interfere in the rhizogenic process of the cuttings. Thus, the aim of this work was to evaluate the effect of the substrate on the rooting of cuttings of two hybrid rose bushes. Floriferous branches of matrix plants were cut at the apex and at the base, approximately 8cm long and with two buds, and the basal leaf was removed. The experimental design was completely randomized, in a 2 × 3 factorial scheme (two cultivars, Tineke and Natal Briar × three substrates, carbonized rice husk, coconut fiber and TN Gold®) containing four replicates of 15 cuttings per replicate. The base of the cuttings was immersed for five seconds in IBA 2000mg L-1 solution (indole butyric acid). The cuttings were placed in trays with 24 cells previously filled with substrate and deposited on the floor in a transparent plastic tunnel, built inside a stove. After the 50-day experiment, rootstocks (%), sprouts (%) and dead (%), root length (cm), fresh and dry shoot biomass and roots (g) were evaluated. The rooting percentage of the Natal Briar cultivar was 75%, thus superior to the Tineke cultivar, which had a rooting percentage of 39%. The best substrates for the Tineke and Natal Briar rose cuttings are CAC and coconut fiber, which provided rooting percentages of 81% and 67% of the cuttings, respectively.
Educação como expressão do corpo que dança: um olhar sobre a vivência da dança em projetos sociais
Authors: Ramos Thays Anyelle Macêdo da Silva , Medeiros Rosie
Published: July 2018

RESUMO Este artigo apresenta como objetivo investigar a dança enquanto fonte educativa, a partir de uma experiência desenvolvida no Projeto social, da UFRN denominado Nova Descoberta (PND). Para tanto a investigação partiu da questão o que é dança para você, comparando as respostas iniciais e finais, após a vivência contextualizada da mesma, por alunos da faixa etária entre 07 e 17 anos. Como referência metodológica, utilizamos da fenomenologia de Merleau-Ponty, que evidencia a experiência vivida como fonte de conhecimento, considerando enquanto técnica de pesquisa a descrição, a redução e a interpretação/compreensão do fenômeno, que foram lançados ao PND, o que permitiu revelarmos horizontes educativos no ato de conhecer e vivenciar a dança.
Record of the circumstances of falls in the community: perspective in the Iberian Peninsula
Authors: Araújo Maria de Fátima , Caldevilla Nilza Nogueira , Maciel Candida , Malheiro Felicidade , Rodríguez-Borrego María Aurora , López-Soto Pablo Jesús
Published: July 2018

ABSTRACT Objective: to determine the diagnosis of the situation regarding documentation of falls and risk of falls in people older than 75 years in basic health units in Spain and Portugal. Method: mixed exploratory study in two stages: (i) quantitative descriptive of randomly selected fall records produced in one year (597 records; 197 Spanish and 400 Portuguese); and (ii) qualitative, with the purpose of knowing the perception of health professionals employing semi-structured interviews (72 professionals, 16 Spanish and 56 Portuguese). The study areas were two basic health units in southern Spain and northern Portugal. Results: in the fall records, the number of women was higher. The presence of fall was associated with the variables age, presence of dementia, osteoarticular disease, previous falls and consumption of antivertiginous medication. Health professionals perceived an absence of risk assessment instruments, as well as lack of prevention programs and lack of awareness of this event. Conclusion: falls are perceived as an area of priority attention for health professionals. Nonetheless, there is a lack of adherence to the registration of falls and risk assessment, due to organizational, logistical and motivational problems.
Parotid gland adenocarcinoma in a cow: case report
Authors: Queiroz P.J.B. , Queiroz T.D. , Magalhães P.L. , Borges N.C. , Martins D.B. , Moura V.M.B.D. , Silva L.A.F.
Published: July 2018

ABSTRACT A 9-year-old Girolando dairy cow, weighing 400kg, with a history of increased volume in the right parotid region, which extended to the submandibular region, was assisted. Fine needle aspiration cytology was performed, and the cytological findings were consistent with malignant neoplasm of epithelial origin (carcinoma). Because of the unfavorable prognosis, the animal was euthanized and submitted to an anatomopathological examination. Samples of the increased parotid and affected lymph nodes were collected for histopathological evaluation. The microscopic changes were accentuated features of anaplasia, moderate cell proliferation, atypical mitotic figures, and necrosis. Stroma ranged from delicate to scirrhous, and the tumor boundaries were not distinct. These findings substantiated the preliminary histomorphological diagnosis of undifferentiated carcinoma with metastasis in lymph nodes. Immunohistochemical tests were performed with anti-CK Pan (clone AE1AE3), anti-CK HMW (clone 34βE12), anti-CK19 (clone RCK108), anti-vimentin (clone V9), anti-S100 (polyclonal), and anti-androgen (polyclonal) antibodies. The immunophenotype favored the diagnosis of salivary gland adenocarcinoma. Despite the rareness in cattle, salivary gland adenocarcinoma should be considered in the differential diagnosis of diseases that occur with increased volume in the head, lymphadenopathy, drooling, dysphagia, and progressive weight loss.
Radiographic analysis for the evaluation of polyembryony in Swingle citrumelo seeds
Authors: Arruda Natália , Cicero Silvio Moure , Gomes Junior Francisco Guilhien
Published: July 2018

Abstract: The polyembryony rate is a very important factor to consider when choosing a commercial rootstock. Currently, automated systems are used to improve seed quality analyses. X-ray testing is a fast, simple, non-destructive, high-precision test that allows to examine in detail the internal morphology of the seeds to identify damaged areas, their location and types of damage. In this context, the present research aimed to verify the possibility of using X-ray test to evaluate the polyembryony in Swingle citrumelo seeds. Seeds from seven lots were submitted to X-ray tests, direct method (embryo counts) and indirect method (germination). According to the results obtained, it was observed that there was a high coincidence between the number of embryos per seed analyzed using X-ray test and the direct method. Radiographic image analysis is efficient to evaluate the polyembryony in seeds of Swingle citrumelo.
PALSAR-2/ALOS-2 AND OLI/LANDSAT-8 DATA INTEGRATION FOR LAND USE AND LAND COVER MAPPING IN NORTHERN BRAZILIAN AMAZON
Authors: Pavanelli João Arthur Pompeu , Santos João Roberto dos , Galvão Lênio Soares , Xaud Maristela , Xaud Haron Abrahim Magalhães
Published: July 2018

Abstract: In northern Brazilian Amazon, the crops, savannahs and rainforests form a complex landscape where land use and land cover (LULC) mapping is difficult. Here, data from the Operational Land Imager (OLI)/Landsat-8 and Phased Array type L-band Synthetic Aperture Radar (PALSAR-2)/ALOS-2 were combined for mapping 17 LULC classes using Random Forest (RF) during the dry season. The potential thematic accuracy of each dataset was assessed and compared with results of the hybrid classification from both datasets. The results showed that the combination of PALSAR-2 HH/HV amplitudes with the reflectance of the six OLI bands produced an overall accuracy of 83% and a Kappa of 0.81, which represented an improvement of 6% in relation to the RF classification derived solely from OLI data. The RF models using OLI multispectral metrics performed better than RF models using PALSAR-2 L-band dual polarization attributes. However, the major contribution of PALSAR-2 in the savannahs was to discriminate low biomass classes such as savannah grassland and wooded savannah.
Using non-destructive testing to predict the mechanical properties of glued laminated poplar
Authors: Martins Carlos , Dias Alfredo M. P. G. , Cruz Helena
Published: July 2018

This paper describes the use of non-destructive methods to assess the mechanical properties of structural glued laminated timber (GLT) made from poplar. The longitudinal vibration method (LVM) and the transformed section method (TSM) were considered. Full-scale tests were also performed to determine the most relevant mechanical properties of 18 beams, namely modulus of elasticity and bending strength. In addition, the bonding performance of each beam was checked by delamination and shear strength tests. Detailed analysis of the results was performed and combined with Levene and Tukey tests. The accuracy of the two non-destructive test methods was evaluated by linear regression analysis. The TSM showed stronger correlations with modulus of elasticity and shear strength. Slightly lower values were obtained using the LVM. A strength class of GL24c can be assigned for GLT made from poplar, with lower properties at the inner lamellas.
Response to Steve Hoffman's "The Responsibilities and Obligations of STS in a Moment of Post-Truth Demagoguery"
Authors: Marres Noortje
Published: July 2018

In this response to Steven Hoffman’s The Responsibilities and Obligations of STS in a Moment of Post-Truth Demagoguery," I insist on the importance of public knowledge, which requires that we distinguish between scientific and public facts. I differentiate between knowledge democracy and populism, as the former entails a refusal of hierarchical visions of the relation between science and politics. I discuss the problem of demarcation, and how the delineation between valid and invalid claims resurfaces as a practical and normative problem in today’s technological societies.
S. cerevisiae Δpho84 complementation: growth curves v1
Authors: S Milner David
Published: July 2018

Complementation ofa S. cerevisiae Δpho84 strain with putative phosphate transporter(s)
S. cerevisiae Δpho84 complementation: metal toxicity v1
Authors: S Milner David
Published: July 2018

Testing for metal toxicity as a result of addition of a putative phosphate transporterto a S. cerevisiaeΔpho84 strain
Correction of pain-related and affective behavior by combination of fluoxetine and buspirone in prenatally stressed rats
Authors: Butkevich Irina P. , Mikhaylenko Viktor A. , Shimarayeva Tatyana N. , Kochubeev Andrei V.
Published: July 2018

The inhibitor of serotonin (5-HT) reuptake fluoxetine does not cause any improvement in every patient suffering from depression; moreover, fluoxetine during pregnancy disrupts the normal development of the fetus. Clinical observations in adult patients suggest that treatment of depression with a combination of fluoxetine and 5-HT1A receptor agonists has a higher therapeutic effect than the effect of a single fluoxetine. In the present study, the effect of chronic management of the combination of fluoxetine and a 5-HT1A receptor agonist anxiolytic buspirone was examined in order to correct the adverse effects of prenatal stress on pain and affective behavior in the female offspring during the prepubertal period of development. It was found that the immobilization stress of rat dams in the last third of pregnancy (the stress of rat dams during pregnancy is used as a model of human depression) caused in the offspring the increased functional activity of the pain system, an increase in the level of depressive-like behavior. Chronic administration to pregnant dams of fluoxetine, buspirone, or their combination has improved the characteristics under study in the female offspring. The results indicate that the chronic administration of a combination of fluoxetine and buspirone during the gestation of rat dams neutralized the negative effect of prenatal stress in female offspring. More effective action of the combination of the drugs compared with the action of fluoxetine was revealed in the pain sensitivity to thermal stimulus and in the first acute phase of pain behavior in the formalin test. Undesirable deviations in the investigated types of behavior in female rats subjected to pharmacological effects of each of the drugs during the prenatal period were not revealed.
Self-assessment of health and readiness for military service of senior pupils of Yakutsk
Authors: Iurev Vadim K. , Zhirkov Pavel G.
Published: July 2018

At present, the state of health of young men deserves special attention on the part of the state, since they are not only the economic, social, demographic, but also the defense potential of the country. The evaluation of the health of young people of their own health in terms of the ability to perform certain social functions and roles, that is, self-evaluation of health, is important in assessing health. In order to study the opinion of the young men about their health and their compliance with the requirements of military service, an anonymous survey of 325 senior pupils of four Yakutsk general education schools was conducted. It was found that many young men of Yakutsk low estimate their readiness for military service. An analysis of the self-assessment of the degree of physical training made it possible to establish that more than a third of high school students believe that they have poor or insufficient physical training, more than a quarter believe that they are not physically ready for military service. At the same time, less than a third seek to improve their physical training through regular physical training and sports, the remaining boys regularly do not engage in physical culture and sports, explaining this subjective reasons. Most know that there are such diseases in which one does not join the army, and one in four believes that he has such a disease. Of the 100 senior pupils, 8,2 ± 1,5 assess their health as bad, 11,2 ± 1,8 consider that for health reasons they are not fit for military service, at the same time 42,4 ± 2,8 believe that to military service they are only limitedly fit or temporarily unfit. Statistically significant differences in the self-assessment of health and the degree of physical fitness between the Yakuts and the Russians were not established.
The history of development of hiatal hernias’ surgery
Authors: Akhmatov Akhmat M. , Tarbaev Ivan S. , Vasilevsky Dmitrij I.
Published: July 2018

The article presents the main stages of formation of modern ideas about hiatal hernias as one of the most frequent variants of visceral anatomy’s impairment. The history of development of hiatal hearnias’ surgery is presented from the moment of its birth to the present time. According to modern ideas hiatal hernias are considered to be a chronic recurrent disease when abdominal part of esophagus, part of stomach or other internal is dislocated into a mediastenum and hernia ring is presented by esophageal hiatus. During the long time hiatal hernias were considered to be just the anatomical phenomenon. It’s known that Angello Soresi was the first American surgeon who performed an operation on hiatal hernia in 1919. A lot of original techniques of hiatal hernias’ surgery were devised in 1950. Operations developed by American surgeon – Ronald Belsey and European clinicians – Philip Allison and others became mostly widespread. During the next 10 years (1960-1970) techniques with obligatory antireflux component were offered. Most effective and popular operations which are used nowadays are ones that were developed by Rudolph Nissen, Andre Toupet, Lucius Hill and others. New stage of hiatal hernias` surgery started at 90’s of the XX century – the century of laparoscopic technologies’ wide application into clinical practice. Bernard Dallemagen performed such an operation for the first time in 1991. V.A. Kubyshkin, V.D. Fedorov and many others became the ideologists and pioneers of laparoscopic surgery of haital hernias in Russia. Application of new treatment methods and standardization of most surgical techniques permitted to increase efficiency and safety of hiatal hernias’ surgery.
Principles autopsy in cases of perinatal death
Authors: Nasyrov Ruslan A. , Melnikova Valentina F. , Krasnogorskaia Olga L. , Popova Elena D. , Narkevich Tatiana A. , Sidorova Nadezhda A. , Paneiakh Moisei B. , Fedotova Elena P.
Published: July 2018

Achievements in modern medicine, allowed since 2012, significantly reduce perinatal mortality in the Russian Federation. Despite the impressive rate of decline in perinatal mortality, there are still quite a few deaths that could be prevented. Causes and mechanisms of death in the perinatal period, starting from the 22nd week of intrauterine fetal development, on the 7th day after birth, are significantly different from the tanatogenesis in a patient living more than 7 days. Our work presents perinatal mortality rates in the Russian Federation for the period from 2010 to 2016 and formulates recommendations for the consistent implementation of all stages of an autopsy of the deceased in the perinatal period in full. Issues of approaches to pathoanatomical research, principles of diagnosis formulation and correct registration of medical documentation in stillbirth and in cases of death in the early neonatal period were discussed. The main criteria that allow differential diagnostics between antenatal intrapartum fetal death and the death of a child in the early neonatal period are considered. In addition, we have developed a classification of pathoanatomical diagnosis, taking into account the characteristics of the perinatal period and the interaction in the “mother-placenta-fetus” system. The authors note that in the case of a fatal outcome in the perinatal period, the final pathoanatomical diagnosis, in addition to the generally accepted headings, should take into account the mother's condition (pathology of pregnancy, childbirth), as well as the pathology of the afterbirth.