bluuebunny/crossref_metadata_2025 huggingface dataset:
IMPROVED JOINTS OF REINFORCED CONCRETE ELEMENTS IN PRECAST-AND-CAST-IN-PLACE CONSTRUCTION BASED ON DESTRUCTION MECHANICS
Authors: Dovzhenko Oksana , Pohribnyi Volodymyr
Published: November 2019

Systematic theoretical and experimental studies of the keyed joints of concrete and reinforced concrete elements have been carried out at PoltNTU over the recent thirty years that made it possible to formulate recommendations for their design and to improve the existing design solutions of joints. The keyed joints have higher bearing capacity. The method for calculating the strength of the joints is proposed. This method is based on the theory of concrete plasticity, the variational method and the principle of virtual velocities. It considers the stage of destruction and takes into account the full set of influence factors. The research takes into account the influence of the following factors on the joints strength: the ratio of the key depth to its height; compression level; the intensity of reinforcement and the nature of the reinforcement location. The keys of a rectangular profile of circular cross section are considered, which are formed in the voids of the slabs at their ends surface when girders concreting. For their reinforcement, a spatial cage in the form of a hollow cylinder is proposed. The results of experimental verification of the quantitative and qualitative influence on the joints strength of these factors are presented. The boundaries of the efficiency of reinforcement intensity, the degree of compression are determined, the optimal ratio of the depth of the key to its height is accepted. The design features of the joints of multi-hollow floor slabs (roofs) with a monolithic girder and between themselves in a precast-cast-in-place frame structural system, with wall panels in large-panel houses, as well as joints of wall panels on flexible loops in large-panel buildings, are taken into account. Examples of improved structural solutions for connecting elements of modern load-bearing systems based on the specifics of their work are given.
DETERMINATION OF THE ERROR OF MEASURING THE HEIGHTS OF THE OBJECTS DURING THE AUTOMATIC PROCESSING OF STEREO PICTURES
Authors: Dubyna Oleksandr
Published: November 2019

Currently, information on the spatial description of objects is used in many areas of human activity. One of these types of information is the coordinates of objects. Such data are used in cartography, in the construction of digital maps and 3D models, for the operation of navigation aids, etc. In the automated creation of digital models of terrain relief, one of the main qualitative indicators is the accuracy of determining the height of objects. The main influence on this indicator is made by the parallax measurement error when processing stereo images. To obtain a formula for calculating the accuracy of measuring the height of objects, let’s use the expansion of the function in a Taylor series. Using the Cramer-Rao formula for the potential accuracy of measuring the coordinates of the image of the object in the image, the Fourier transform and Parseval's equality, the formula for the potential accuracy of combining stereo images (parallax measurements) is obtained. The analysis of the obtained formulas shows that the image alignment accuracy deteriorates with an increase in the noise power spectral density in the first and second images and a decrease in the similarity of one image to another, as well as with a decrease in the effective width of the mutual spatial spectrum of stereo images. As the value of the stereo recognition basis increases, the error in measuring the heights of objects first improves, and then worsens. This deterioration is due to the fact that stereo pair images are obtained from different spatial points and at the same time perspective distortions and distortions in relief appear on the images. Accordingly, with an increase in the basis of shooting, these distortions will increase. This approach can be used when planning the mode of stereo shooting and equipment for removing the earth's surface for mapping, obtaining 3D models, etc.
RESEARCH OF TRANSIENT RESPONSES IN AUTOMATIC MOBILE CONTROL SYSTEMS OF DISTILLATION PROCESS
Authors: Sheikus Anton
Published: November 2019

In modern conditions of growth of informatization, to ensure the reliability of the functioning of distributed computer information-diagnostic and control systems, which are mandatory for consideration, there are problems of assessing security and implementing protection of operational information. The state of information protection and the reliability of computer systems for corporate monitoring and diagnosis of the railway power supply system are analyzed. The main tasks in the intellectualization of component systems are defined, namely traction electric network. The principles of information protection are proposed, which include: active protection of information; convincing protection of information, consisting in the justification of the design and measures to protect the conditions and circumstances. Such a principle as the continuity of the information protection process provides for the organization of the protection of objects at all stages of the development and operation life cycle. A variety of information protection tools provides for the exclusion of patterns at the stage of selecting cover objects and various ways to implement protection, not excluding the use of standard solutions. The combination of the above principles in the work is called an integrated approach to information security, which is the basis for the creation of computer information protection systems. According to the sphere of information security, this approach complies with international ISO standards, and for the technical protection of information and state standards it complies with the requirements of existing national legislative and regulatory documents. To ensure the security of information stored and processed in computer systems, the coordinated application of various security measures is necessary.
Information technology integration for accelerated knowledge sharing practices: challenges and prospects for small and medium enterprises
Authors: Ajibade Patrick , M. Ondari-Okemwa Ezra , M. Matlhako Mamadi
Published: November 2019

This paper argues that business enterprises in this competitive global market cannot compete and remain sustainable without effective knowledge sharing to improve business intelligence processes. The central argument hinges on the deployment and use of information technology (IT) as strategic tools to promote business decision making through quick business data analysis and dissemination of business ideas across business units and locations. The study reiterated the critical role IT plays in facilitating a culture of organizational learning and knowledge sharing practices. The study utilized surveys and questionnaires that were distributed to 230 small and medium enterprises (SMEs), and both descriptive and inferential statistics were used to present the results. Findings showed that firms are still using one-on-one meeting to share knowledge, while knowledge sharing activities are controlled through a rigid and inflexible process at the top management level, thereby hindering knowledge flow that is crucial for real-time decision making. The advances in IT have not been used advantageously to improve knowledge sharing and to advance business management. The paper concludes that without strong positive correlation between IT infrastructure integration, and communication strategies and knowledge sharing, the SMEs may not be able to compete in a highly competitive knowledge economy. Consequently, they may lose leverage to another competitor with more robust and mature IT infrastructure alignment for sharing business analytics and intelligence efficiently. A technologically driven, open, and informal approach to knowledge sharing for productive and innovative engagement is recommended. Furthermore, the use of IT that can promote agile and real-time knowledge sharing is recommended.
Vulnerabilidade Estrutural da Venezuela e os Impactos ao Entorno Estratégico Sul-Americano
Authors: Delgado de Jesus Fernanda , Marques Cardoso João Victor
Published: November 2019

O trabalho analisa geopoliticamente como a vulnerabilidade venezuelana impacta a estabilidade da América do Sul, onde o Brasil desempenha relativo protagonismo. À luz da Teoria do Complexo Regional de Segurança (TCRS), parte-se da hipótese de que tal vulnerabilidade afeta o espaço sul-americano, pois a segurança dos atores estatais seria interdependente em um complexo. De um lado, a vulnerabilidade é explicada mediante a dimensão estrutural das reservas de hidrocarbonetos. Por outro, os impactos à estabilidade sul-americana tangenciam o protagonismo brasileiro por meio dos seguintes vetores: geopolítica da energia, comercial-financeiro, fluxo migratório e integração regional. Tal modelo analítico verifica que a paralisia de mecanismos regionais à crise venezuelana segue a lógica de construção de padrões de amizade/inimizade, baseados na cláusula democrática que sustenta os processos de integração regional. A formação desses padrões, segundo a TCRS, se alinha via mecanismo de penetração a potências externas, harmonizando-se a segurança regional e a global. A criação do Grupo de Lima e o esvaziamento dos organismos regionais, que, com efeito, isolam a crise venezuelana e desafiam o protagonismo do Brasil, são fenômenos que caracterizam os padrões de amizade/inimizade em curso, alinhados às identidades e interesses promovidos pela potência externa hegemônica e a ordem internacional por ela protegida.
Improving the AODV Route Recovery Mechanism Using PSO in WSN
Authors: K.N. Sunil Kumar , Shankar Shiva
Published: November 2019

Objective:

The conventional Ad Hoc On-Demand Distance Vector (AODV) routing algorithm,
route discovery methods pose route failure resulting in data loss and routing overhead. In
the proposed method, needs significant low energy consumption while routing from one node to
another node by considering the status of node forwards the packet. So that while routing it avoids
unnecessary control overhead and improves the network performance.

Methods:

Particle Swarm Optimization (PSO) algorithm is a nature- inspired, population-based
algorithm. Particle Swarm Optimization (PSO) is a Computational Intelligence technique which
optimizes the objective function. It works by considering that every member of the swarm contributes
in finding the ideal solution by keeping a track of their own best known location and the
best-known location of the group and keeps updating them whenever there is a change and hence
minimizes the objective fitness function. The fitness function which we considered here is the
Node lifetime, Link Lifetime and available Bandwidth. If these parameters are with good then status
of node will be strong and hence routing of packet over those nodes will reduce delay and improves
network performance.

Result:

To verify the feasibility and effectiveness of our proposal, the routing performance of
AODV and PSO-AODV is compared with respect to various network metrics like Network Lifetime,
packet delivery ratio and routing overhead and validated the result by comparing both routing
algorithm using Network Simulator 2. The results of the PSO-AODV has outperformed the
AODV in terms of low energy, less end to end delay and high packet delivery ratio and less control
overhead.

Conclusion:

Here we proposed to use Particle Swarm Optimization in order to obtain the more
suitable parameters for the decision making. The existing AODV protocol was modified to make a
decision to recover from route failure; at the link failure predecessor node implementing PSO
based energy prediction concept and using weights for each argument considered in the decision
function. The fitness values for each weight were found through PSO basic form. We observed
that the PSO showed satisfactory behaviour improvement than the performance of AODV for all
metrics on the investigated scenarios.
ENGELLİLİĞE GENEL BAKIŞ VE ENGELLİ ÇOCUKLARIN SAĞLIK DAVRANIŞLARI
Authors: ÇOBAN Tülin , ÖZCEBE Hilal
Published: November 2019

Dünya Sağlık Örgütü (DSÖ) engeli, “vücut
fonksiyonu veya yapısındaki bozuklukları, bireyin bir eylemi yerine
getirmesinde karşılaşılan zorlukları ve yaşam gerekliliklerine katılımın
kısıtlanmasını kapsayan şemsiye bir kavram” olarak tanımlamaktadır. Dünyada
15 yaş altı çocukların ise %5’i yani yaklaşık 93 milyon çocuk orta veya ağır
bir engele sahiptir. Ülkemizde
ise engelli bireylerin %21,1’inin 15 yaşından küçük çocuklar olduğu
saptanmıştır. Engelli bireyler tıbbi bakım, istihdam, eğitim, ulaşım ve barınma
gibi pek çok hizmete ulaşmada ciddi engellerle karşılaşmaktadır. Engellilerin
haklarını belirlemek ve güvence altına almak için dünyada ve ülkemizde çeşitli
yasal düzenlemeler mevcut olmasına rağmen konuyla ilgili kalıcı çözümlerin uygulanmasında pek çok
güçlükle karşılaşılmaktadır. Engelliler özellikle okul ve iş
hayatı, ekonomik kaynaklara ve kamusal hizmetlere erişim konularında ayrımcılık
ve dışlanmaya maruz kalmaktadır. Engellilerin engellerine göre tasarlanmamış olan fiziksel
çevre koşulları da toplumdan dışlanma durumlarının artmasına neden olmaktadır.
Bu sebeplerle, engelli çocuklar incinebilirliği en yüksek gruplardan birini
oluşturmaktadır. Sağlık sorunlarının hemen tamamında engelli çocuklara
yönelik dezavantajlı durumlar öne çıkmaktadır. Engelli çocukların sağlığının geliştirilmesi ve topluma kazandırılması
çocuğun eğitimi, ailelerin eğitimi ve engelli çocuğa sağlık ve bakım
hizmetlerinin bütünlüklü bir şekilde verilmesiyle mümkündür. Engelli çocukların yaşama katılabilmeleri için sağlığının korunması ve geliştirilmesine yönelik
yapılması gereken müdahaleler tüm sektörler tarafından benimsenmeli ve
uygulanmalıdır.
ÜNİVERSİTE ÖĞRENCİLERİNDE İNTERNET BAĞIMLILIĞININ DEPRESYON VE ANKSİYETE İLE İLİŞKİSİ
Authors: KORKMAZER Başak , KILINÇARSLAN Mehmet Göktuğ , ŞAHİN Erkan Melih
Published: November 2019

GİRİŞ Gençlik döneminde riskli sağlık davranışlarına yatkınlık sık görülmektedir ve internet bağımlılığı da bunlardan biridir. İnternet bağımlılığının etiyolojisiyle ilgili araştırmalar henüz başlangıç ​​aşamasındadır ve  boyutsal olarak ölçülen depresyon ve sosyal izolasyon göstergeleri ile ilişkilendirilmiştir. Bu araştırmada üniversite öğrencilerinde internet bağımlılığı ile depresyon ve anksiyete arasındaki ilişkiyi incelemeyi amaçladık.YÖNTEM Bu çalışma Çanakkale Onsekiz Mart Üniversitesi’nin 2011 – 2012 eğitim yılında merkez yerleşkesinde eğitim alan 28 572 üniversite öğrencisi üzerinde online anket çalışması olarak yürütüldü. Toplamda 4430 (%15,5) öğrenciye ulaşıldı. Bunların 3064’ü (%69,2) bilgisayar ve internet kullanımı sorularını cevaplamıştı. Çok boyutlu bir çalışmanın parçası olan bu araştırmada 71 soruluk orijinal anket dahilinde internet bağımlılığını ölçmek için BAPİNT ölçeği; depresyon ve anksiyeteyi ölçmek için BAPİ-K ölçeği kullanıldı. Tek değişkenli testlerden sonra Binary Logistic Regression analizi yapıldı.BULGULAR İnternet kullanım sorularına cevap veren katılımcıların ortalama yaşı 21,7±3,2 [17-63] iken %55,1’i (1688) kadın, %44,9’u (1374) erkekti. Katılımcıların %34,6’i BAPINT ölçeğine göre internet bağımlılığına sahipti.Regresyon analizinde tüm yordayıcıları içeren model istatistiki olarak anlamlı bulundu (X2=173,553 p<0,001). Bağımsız değişkenler kontrol edildikten sonra internet bağımlılığını, depresyonun 1,799 (1,485-2,179 p<0,05) kat, anksiyetenin ise 1,708 (1,423-2,050 p<0,05) kat arttırdığı saptandı.TARTIŞMA ve SONUÇ Çalışmamızdaki internet bağımlılığı oranı (%34,6) ülkemizde üniversite öğrencileri arasında yapılmış diğer çalışmaların saptadığı oranlar (%18,9 - %56,9) ile benzerdi.  Önceki ulusal ve uluslararası çalışmalarla uyumlu olarak internet bağımlılığının depresyon ve anksiyete gibi ruhsal bozukluklarla ilişki gösterdiği saptandı. İnternet bağımlılığı ile mental sağlık arasındaki nedensellik henüz tam çözümlenememiş olup; her alan ve toplulukta internet kullanımının yaygınlaşmasıyla birlikte özellikle gençler riskli populasyonda yer almakta, anksiyete veya depresyonu mevcut olan gençlerin takibinde internet bağımlılığının da göz önünde bulundurulması önem taşımaktadır.
Effectiveness of arrangement of the long cargo transportation on the fi tting platforms with different length of freight storage
Authors: Mozgrin S. V. , Pisarevskiy G. E.
Published: November 2019

Fitting platforms of variable freight storage lengths are used for transportation of rails and other cargo up to 25 m long. The use of innovative fixation for transportation on the fitting platforms contributes to enlargement of the range of cargo transported on such rolling stock and establishes conditions for safe transportation of such cargo.

To evaluate the effectiveness of the arrangement of long cargo transportation on the fitting platform, this study examines two 25 m long rail transportation options. The transportation option involving two coupled 14.62 m platforms, when the cargo is fixed on the coupled platforms with the standard method is the basic option. The new option involves transportation of the 25 m long rails using 80-feet fitting platforms 25.62 m long at the coupling axes and multiway fi xation sets. A calendar year is assumed as the estimate period. The transported volume is assumed equal for each option, under considering the operating conditions of the calculation unit — one coupling of universal platform (or one 80-feet fitting platform), reducing the financial results to a ton of transported cargo. The value of the annual economic effect for the freight owner (Eyearown) is determined as the change of the freight owner’s expenses due to usage of the new option relative to the basic transportation option.

The economic assessment of the transportation is performed considering the interests of each member of the transportation process and tested based on specific data. The results demonstrate the effectiveness of implementation of the technical and technological solution under consideration.
Development of an onboard monitoring device for freight car shock-absorbing device’s technical condition
Authors: Matyash Yu. I. , Gadzhiev I. A.
Published: November 2019

Good technical condition of rolling stock is an important consideration for increasing safety in train traffi c. Safety is the state’s priority in the development and modernization of the railroad industry. The goal of this study is to develop an onboard monitoring device for a freight car’s shock-absorbing device’s technical condition. This justifi es the need to control the serviceability of the unit and the urgency to equip freight cars with onboard monitoring systems. The following tasks were set and resolved: collection and analysis of information on the dynamics of changes in the number of faults of freight cars serviced at the sites of the current uncoupling repair of Russian companies from 2008 to 2018; study the expediency of the primary control of serviceability of different units of the freight car; collection and analysis of information including statistical data, scientifi c publications, and thesis on the effect of a failed shock-absorbing device on other units of the freight car and reduction of the train’s overall traffi c safety. The study enabled development and manufacturing of a mockup onboard monitoring device freight car shock-absorbing device’s technical condition, with its functional capabilities described. To increase the diagnostics accuracy, technology defi ning failure criteria of the controlled unit and reduction of its operation effectiveness is developed. The main recommendations for using the proposed onboard device are also provided. The principal advantages of the device are underlined and reasons for freight rolling stock owners to equip their cars with the developed system are advanced.
Nordic Gods in Classical Dress
Authors: Vetushko-Kalevich Arsenii
Published: November 2019

The 19th century in Sweden, like in many other European countries, saw a large decline in the quantity of Neo-Latin literary production. However, a range of skillful Latin poets may be named from this period: Johan Lundblad, Johan Tranér, Emil Söderström, Johan Bergman and others, engaged as well in translating from Swedish into Latin as in composing poems of their own. It was also in the 19th century that the longest Latin poem ever written in Sweden came out – “De diis arctois libri VI” by Carl Georg Brunius (1792–1869), remarkably neglected by the scholars, although it was published twice during the lifetime of its author (1822 and 1857).

The subject of the poem fits perfectly in the intellectual movement of the period, namely national romantic interest in the Nordic antiquities. The six books represent a summary of Eddaic mythology from the creation of the Universe until the Ragnarök.

Brunius’ admiration for the Scandinavian Middle Ages is apparent; later it turned out to be productive in architecture, the field in which Brunius is most remembered nowadays. Brunius does not seek to turn Scandinavian gods into Greek ones. He accurately follows his sources (both the prosaic and, to a somewhat smaller extent, the poetic Edda) in content, sometimes even in wording. However, it should be born in mind that the writer was a classicist by his education. Although many compositional traits of ancient epos are lacking in the poem, it is full of the allusions to classical authors at the phrasal level. Some of them are formulaic verse elements, others deliberate and exquisite quotations. It is this elegant combination of close adherence to the sources with the use of the ancient authors (Virgil, Lucretius, Ovid, Horace) that the paper is mainly focused on.
Las comunidades vegetales del bosque de coníferas altimontano en el macizo del Tancítaro (Michoacán, México)
Authors: Medina García Consuelo , Gimenez de Azcarate Joaquin , Velázquez Montes Alejandro
Published: November 2019

Antecedentes y Objetivos: El límite superior del bosque es un ecosistema que alberga comunidades herbáceas y forestales con singular presencia de endemismos y con una función relevante en la captación, recarga y transporte de agua, lo que los define como nodos de provisión de bienes y servicios ambientales. Lo anterior es de particular significado en las montañas intertropicales por ser las que resguardan un banco de germoplasma oriundo significativamente elevado. Ese es el caso del Pico del Tancítaro y volcanes circundantes, región de estudio comprendida entre 2600 y 3800 m de altitud en Michoacán, México. Este trabajo tuvo como objetivo central definir y caracterizar la diversidad florística y fitocenótica, así como las pautas de distribución de las asociaciones vegetales a lo largo del gradiente altitudinal.
Métodos: Se realizaron 35 inventarios siguiendo la metodología fitosociológica; en ellos se registraron las especies, su cobertura y los atributos físico-geográficos del sitio muestreado. La información de campo fue corroborada en gabinete; para asegurar los aspectos de identificación florística se utilizó preferentemente la “Flora del Bajío y de regiones adyacentes”. Los datos fueron analizados utilizando técnicas de agrupamiento multivariadas para poder definir las asociaciones vegetales.
Resultados clave: Los 35 inventarios se consideraron como base para armar las tablas de vegetación que soportan las siguientes asociaciones vegetales: Gaultherio myrsinoidis-Pinetum hartwegii, Polysticho speciosissimae-Abietetum religiosae y Sibthorpio repentis-Abietetum religiosae; así como otras de rango menor. Para cada asociación se abordaron cuestiones de estructura, composición, ecología, distribución y relación con los pisos bioclimáticos y con otras asociaciones próximas.
Conclusiones: Las combinaciones florísticas propias de las asociaciones reflejan las variaciones ambientales que se suceden en el gradiente altitudinal, incluyendo las causadas por perturbación natural y/o antrópica. Dichas asociaciones permiten tipificar la heterogeneidad fitocenótica del bosque estudiado y su papel como proveedoras de servicios ambientales y de biodiversidad.
Artificial Intelligence Technologies for Coping with Alarm Fatigue in Hospital Environments Because of Sensory Overload: Algorithm Development and Validation
Authors: Fernandes Chrystinne Oliveira , Miles Simon , Lucena Carlos José Pereira De , Cowan Donald
Published: November 2019

Background

Informed estimates claim that 80% to 99% of alarms set off in hospital units are false or clinically insignificant, representing a cacophony of sounds that do not present a real danger to patients. These false alarms can lead to an alert overload that causes a health care provider to miss important events that could be harmful or even life-threatening. As health care units become more dependent on monitoring devices for patient care purposes, the alarm fatigue issue has to be addressed as a major concern for the health care team as well as to enhance patient safety.

Objective

The main goal of this paper was to propose a feasible solution for the alarm fatigue problem by using an automatic reasoning mechanism to decide how to notify members of the health care team. The aim was to reduce the number of notifications sent by determining whether or not to group a set of alarms that occur over a short period of time to deliver them together, without compromising patient safety.

Methods

This paper describes: (1) a model for supporting reasoning algorithms that decide how to notify caregivers to avoid alarm fatigue; (2) an architecture for health systems that support patient monitoring and notification capabilities; and (3) a reasoning algorithm that specifies how to notify caregivers by deciding whether to aggregate a group of alarms to avoid alarm fatigue.

Results

Experiments were used to demonstrate that providing a reasoning system can reduce the notifications received by the caregivers by up to 99.3% (582/586) of the total alarms generated. Our experiments were evaluated through the use of a dataset comprising patient monitoring data and vital signs recorded during 32 surgical cases where patients underwent anesthesia at the Royal Adelaide Hospital. We present the results of our algorithm by using graphs we generated using the R language, where we show whether the algorithm decided to deliver an alarm immediately or after a delay.

Conclusions

The experimental results strongly suggest that this reasoning algorithm is a useful strategy for avoiding alarm fatigue. Although we evaluated our algorithm in an experimental environment, we tried to reproduce the context of a clinical environment by using real-world patient data. Our future work is to reproduce the evaluation study based on more realistic clinical conditions by increasing the number of patients, monitoring parameters, and types of alarm.
Effect of Various Invitation Schemes on the Use of Fecal Immunochemical Tests for Colorectal Cancer Screening: Protocol for a Randomized Controlled Trial
Authors: Gruner Laura Fiona , Hoffmeister Michael , Ludwig Leopold , Brenner Hermann
Published: November 2019

Background

Fecal occult blood testing has been offered for many years in the German health care system, but participation rates have been notoriously low.

Objective

The aim of this study is to evaluate the effect of various personal invitation schemes on the use of fecal immunochemical tests (FITs) in persons aged 50-54 years.

Methods

This study consists of a three-armed randomized controlled trial: (1) arm A: an invitation letter from a health insurance plan including a FIT test kit, (2) arm B: an invitation letter from a health insurance plan including an offer to receive a free FIT test kit by mail upon easy-to-handle request (ie, by internet, fax, or reply mail), and (3) arm C: an information letter on an existing colonoscopy offer (ie, control). Within arms A and B, a random selection of 50% of the study population will receive reminder letters, the effects of which are to be evaluated in a substudy.

Results

A total of 17,532 persons aged 50-54 years in a statutory health insurance plan in the southwest of Germany—AOK Baden-Wuerttemberg—were sent an initial invitation, and 5825 reminder letters were sent out. The primary end point is FIT usage within 1 year from receipt of invitation or information letter. The main secondary end points include gender-specific FIT usage within 1 year, rates of positive test results, rates of colonoscopies following a positive test result, and detection rates of advanced neoplasms. The study was launched in September 2017. Data collection and workup were completed in fall 2019.

Conclusions

This randomized controlled trial will provide important empirical evidence for enhancing colorectal cancer screening offers in the German health care system.

Trial Registration

German Clinical Trials Register (DRKS) DRKS00011858; https://bit.ly/2UBTIdt

International Registered Report Identifier (IRRID)

DERR1-10.2196/16413
Applying the logo environment: learning, doing and discovery through computerized learning projects
Authors: Murray Lasso M. A.
Published: November 2019

In this paper the Logo environment is applied to several original computerized learning projects, each of a very different nature: one for learning geometry generating numerous instances for verifying the results of a little known theorem of plane geometry, a second for learning the basics of the physical foundations of music through the construction, using the keyboard of the computer, of a little piano, and a third one to learn some aspects of Spanish grammar involving the conjugation of regular and irregular verbs. The projects were carefully selected to illustrate a wide range of possibilities and the flexibility of the Logo language and power of its instruction set and adaptive data structure. After introducing the main ideas of the Logo educational philosophy, a short introduction to the language is given followed by an introduction to the concept of a microworld. Next the idea of a computerized learning project is explained and the three projects mentioned above are presented. Complete listings of simple programs in LogoWriter are included together with some ideas for extending the projects in different directions. The projects presented in the paper are of a slightly more advanced nature than what usually appears in books on Logo. The paper is sprinkled with learning ideas that can be tried with groups of youngsters.
Faraday plasma current sensor with compensation for reciprocal birefringence induced by mechanical perturbations
Authors: Barmenkov Y. O. , Mendoza-Santoyo F.
Published: November 2019

A Faraday fiber-optic current sensor was employed to measure the tokamak plasma current. In order to decrease the influence of mechanical perturbations on the sensor sensitivity, a two-pass optical scheme with a variable Faraday mirror at the fiber end is proposed. A decrease, by two orders of magnitude, in the influence of the linear birefringence produced by an external piezoceramic fiber modulator was experimentally observed.
Time reversibility in acoustic signals
Authors: Velázquez J.M. , Ramí­rez A. , Vargas C. A.
Published: November 2019

In this work we make a description of the time reversion problem in sound waves. Our objective is to explain the phenomena through the Fourier transform of the Green's function. With this function it is possible to characterize the propagation of the emitted signal. It also can be used to express the time-reversed signal in such a way that we can select precisely the destination site of the signal. Finally, we show some possible practical applications of this problem.
Performance of a new bus assignment algorithm for an ATM switch fabric
Authors: Garcí­a-Hernández J. , Ghanbari M.
Published: November 2019

The measurement of the quality of service in ATM* networks involves the activation of the ATM layer management OAM functions. Once an ATM connection is set up, in-service performance monitoring based on OAM cells can be used to measure and estimate the ATM layer QoS parameters. In-service measurement of ATM layer QoS parameters such as cell delay variation, cell transfer delay, cell loss ratio, etc., is necessary to verify on one hand, if the network is meeting the requested QoS and on the other hand, if the users are receiving their promised QoS. Congestion conditions in ATM switches may cause gradual deteriorations in the quality of virtual paths or virtual channel connections in an ATM network. QoS measurement using OAM cells can accurately measure the overall quality of monitored ATM layer QoS parameters in order to detect such deteriorations before the service quality has dropped bellow an acceptable level. Several factors such as network load, congestion, bottlenecks, and incremenTS in network load may affect the cell delay variation of video transmissions in an ATM network. In this work, several ATM layer QoS parameters have been measured on a VBR video source using OAM cells. The simulation resulTS obtained show that with low network loads, the contribution of each individual ATM switch to the local and to the end-to-end CDV is not significant. In the presence of a bottleneck switch, the CDV presented by this switch becomes the dominant one at both local and end-to-end sides. When the network load is between 0.5 and 0.6, small incremenTS in network load do not alter the buffer performance of the non-congested ATM switches, and low values of CDV can be obtained. In contrast, it was found that there is a critical load between 0.65 and 0.7 where small incremenTS in network load may force the CDV to grow abruptly.
La semaforización nutricional y su influencia en la salud de la población ecuatoriana
Authors: Montilla Pacheco Argenis
Published: November 2019

Las naciones desarrolladas propician ejemplos para demos-trar que la gobernabilidad depende de la atención a factores específicos relacionados con la educación, nutrición y salud. Por su parte, los países que aspiran alcanzar mayores nive-les de desarrollo, entre ellos Ecuador, han considerado una serie de acciones en salud que demuestran preocupación por el bienestar de sus ciudadanos; una de ellas es la imple-mentación de la semaforización nutricional, cuyo propósito es informar al consumidor sobre los nutrientes por ración que contienen las bebidas y alimentos ya elaborados. En ese sentido, el objetivo de este trabajo es analizar las ventajas e impactos que esta medida puede tener sobre la salud de la población ecuatoriana. El trabajo es un ensayo construido a partir de la hermenéutica, basada en la revisión, análisis e interpretación de distintas fuentes documentales que abor-dan el tema alimentario. Se concluye que la semaforización nutricional es de importancia para la salud de la población, y que esta debe abarcar no solamente los alimentos y bebidas elaborados industrialmente, sino también aquellos que se preparan en diferentes expendios de comida, especialmente en restaurantes.
Modelo de Cascada de Atención para la co-infección de las hepatitis virales para el cuidado continuo en personas con VIH/Sida
Authors: Tapia Leandro , Peña Paola , Manoslavas Laura , Paulino-Ramírez Robert
Published: November 2019

Introducción: las coinfecciones con hepatitis virales y el VIH representan un riesgo por su alta transmisibilidad y complicaciones. Es de vital importancia que se puedan identificar las barreras de acceso y manejo de las coinfeccio-nes del VIH y la Hepatitis B y C. El propósito del estudio es describir la cascada de atención para la coinfección de las hepatitis virales en personas viviendo con VIH/SIDA.

Métodos: se delimitaron los indicadores de manejo y seguimiento de los pacientes monitoreados actualmente en clínicas de primer nivel de atención en Santo Domingo y Santiago. Los datos recopilados fueron analizados a partir de los registros escritos de los pacientes en seguimiento, para evaluar los datos epidemiológicos y serológicos que se obtuvieron de los archivos clínicos.

Resultados: se demostró que un 100 % de los pacientes fueron enrolados, 85.7 % se consideraron como retenidos en el manejo de la coinfección VIH/VHB y solamente 71.4 % recibieron TARV basado en Tenofovir. La casca-da de atención para la coinfección VIH/VHC muestra un vínculo de 87.5 % de los pacientes, 75 % fueron retenidos y ninguno recibió tratamiento.

Conclusión: la identificación de los factores de riesgo que influyen en las brechas de la cascada es fundamental para optimizar el manejo y monitoreo de los pacientes coinfec-tados, teniendo en cuenta que es preciso poder reconocer aquellos infectados para iniciar tratamiento de inmediato y así prever secuelas citopatológicas hepáticas.
Anomalía de Poland, a propósito de dos casos
Authors: Almánzar Rosario
Published: November 2019

Introducción: el síndrome de Poland, conocido también como secuencia de Poland o anomalía de Poland, fue descrito por primera vez por Alfred Poland en 1841. Corresponde a una alteración musculoesquelética congénita, caracterizada por la ausencia total o parcial del músculo pectoral mayor, asociada a anormalidades de la extremidad superior ipsilateral.

Objetivo: se presentan dos casos de niñas que consultaron por asimetría mamaria, en el primer caso una niña de 12 años con ausencia del pectoral mayor y antecedente de postquirúrgicos sindactilia de mano derecha ipsilateral. El segundo caso, una niña de 9 años con asimetría mamaria sin alteración en la extremidad.

Conclusión: la anomalía de Poland o secuencia de Poland es una alteración musculoesquelética de presentación infrecuente, de aparición esporádica, de mayor prevalencia en masculinos, afecta generalmente el lado derecho del cuerpo, muy pocas veces amerita tratamiento quirúrgico.
DINAMIKA KONFLIK PERKAWINAN BURUH MIGRAN PEREMPUAN (Studi di Desa Wanutunggal Kecamatan Godong Kabupaten Grobogan)
Authors: Hikmah Siti
Published: November 2019

Konflik buruh migran perempuan meliputi power and control (power dan control suami semakin berkurang jika istri terlalu lama menjadi buruh migran), nurturing ( bisa menyesuaikan menjadi mandiri demi tujuan bersama), intimacy ( terlalu lama menjadi buruh migran akan kehilangan oasis dari intimacy dan mempengaruhi ketertarikan seksual diantara mereka), trust (informan percaya dengan pasangannya demi mencapai tujuan bersama), Fidelity (sebagian besar suami buruh migran menyalurkan hasrat seksual melalui prostitusi, perselingkuhan, namun ada sebagian yang tetap setia dengan pasangannya, penyaluran libido seksual melalui onani, masturbasi dan mimpi basah), life style (terjadi perubahan gaya hidup pada buruh migran dan keluarganya menjadi lebih konsumtif).
O ENSINO MÉDIO NO BRASIL: AUSÊNCIAS SILENCIADAS
Authors: Costa Gilvan Luiz Machado
Published: November 2019

O artigo tem como objetivo compreender os limites e as perspectivas à universalização do acesso e à valorização do professor no Ensino Médio. A discussão foi realizada com base em indicadores educacionais arrolados à qualidade social, com destaque para Taxa Líquida de Matrícula, Adequação da Formação e o Esforço Docente. A análise explicita um contexto distante do proposto nas metas 3, 15, 17 e 18 do Plano Nacional de Educação (2014-2024) e evidencia desafios relacionados à universalização do acesso, à formação inicial e às condições de trabalho do professor do Ensino Médio. Sugere que o problema da qualidade social do Ensino Médio não se resolverá com a flexibilização curricular proposta na Lei 13.415/2017. A qualidade social reivindica a universalização do acesso, mormente aos jovens de 15 a 17 anos, e a transformação da docência em uma profissão socialmente atraente. Dimensões subestimadas nas discussões do tempo presente pelos defensores da reforma.
SER PROFESSOR DE EDUCAÇÃO INFANTIL: A CONCEPÇÃO DOS ACADÊMICOS DO CURSO DE PEDAGOGIA
Authors: Brostolin Marta Regina
Published: November 2019

Este texto focaliza a formação de professor no âmbito do curso de Pedagogia e teve por objetivo identificar o perfil do acadêmico ingressante e sua concepção sobre a docência na infância. A pesquisa apresenta uma abordagem qualitativa, de caráter exploratório e empregou como instrumento para a coleta de dados um questionário aplicado a um grupo de trinta e um acadêmicos do 1o semestre. Os dados coletados demonstraram que o perfil encontrado é de um grupo jovem em sua maioria e busca a profissão consciente da sua complexidade, caráter político e social, se posicionando a favor da educação da criança pequena com responsabilidade, sensibilidade e ética.
IOGA NA ESCOLA: POSSIBILIDADES E DESAFIOS
Authors: Franzé Fernanda Pastori , Rossi Fernanda
Published: November 2019

O objetivo da pesquisa é analisar o desenvolvimento e os fatores que impactam o ensino da ioga na educação infantil e nos anos iniciais do ensino fundamental, de acordo com professoras participantes de um programa de formação continuada em ioga e educação. A pesquisa qualitativa foi desenvolvida no decorrer de um programa de formação continuada em ioga, com 23 professoras da educação básica do Sistema Municipal de Ensino de Bauru-SP. Os dados foram coletados por questionário, no qual as professoras indicaram a frequência de desenvolvimento da ioga com suas turmas e os desafios para iniciar ou dar continuidade ao trabalho didático-pedagógico com a ioga na escola. Os resultados indicaram que a maioria das participantes desenvolve a ioga com suas turmas semanalmente. E para a continuidade do ensino da ioga na educação infantil e nos anos iniciais do ensino fundamental foram relatadas: a necessidade de aprofundamento teórico-prático; o domínio didático-pedagógico; estrutura e materiais adequados para o desenvolvimento das aulas; a necessidade do envolvimento da equipe escolar; realização de planejamento ou o preparo prévio das aulas; desenvolvimento de trabalho contínuo com a turma e, por último, a presença da ioga como conteúdo programático nos currículos escolares. Conclui-se que a formação proporcionou às professoras conhecimentos da ioga, possibilitando sua ressignificação para o contexto escolar, bem como o reconhecimento da necessidade constante de estudos, pesquisas e práticas sobre a ioga para sua continuidade, ampliação e reconhecimento como conteúdo na escola.
O DIRETOR ESCOLAR E A FORMAÇÃO DOS PROFESSORES NA ESCOLA: COMPROMISSO SOCIAL E POLÍTICO
Authors: De Souza Faour Ivana Corrêa de Souza Faour Corrêa , Camba Mariangela
Published: November 2019

Este estudo é um recorte da pesquisa realizada durante o mestrado profissional em Práticas Docentes no Ensino Fundamental na UNIMES – Santos/SP no período de 2016 a 2018 e tem como objetivo apresentar as representações dos professores do Ensino Fundamental acerca do papel do diretor escolar na formação continuada em serviço. O estudo tem como referenciais teóricos principais as abordagens de Freire (2001, 2013, 2016), Gatti (2008, 2010, 2014), Lück (2012), Paro (2001, 2004, 2010), Veiga (2013), Vieira (2007, 2008, 2011). Utilizou-se a metodologia qualitativa com encaminhamento para estudo de caso. Os instrumentos de coleta de dados utilizados foram entrevistas semiestruturadas e questionários. A escola pesquisada pertence à rede privada de ensino e localiza-se na cidade de Santos/SP. Como resultado, os dados coletados indicaram que os professores apontam o diretor escolar com um papel fundamental na formação dos docentes, principalmente pedagógico. Compete a ele, além da função administrativa, acompanhar a prática docente em parceria com o coordenador pedagógico; acompanhar os desafios diários da comunidade escolar e o aprendizado. Destaca-se, ainda, o excesso de burocracia que envolve o dia a dia desse profissional e sua ausência nos momentos de formação em função das demandas da administração central.
AVALIAÇÃO INSTITUCIONAL: ANÁLISE DA AVALIAÇÃO DE SISTEMA E A NECESSIDADE DE LEGITIMIDADE POLÍTICA
Authors: De Pádua Sabia Claudia Pereira
Published: November 2019

A avaliação de larga escala percorreu um longo caminho desde a década de 1.990 e apesar das críticas e das contradições que a temática envolve vem sendo ampliado o debate em torno de seus resultados, formatos e consequências de sua implementação na sala de aula. As avaliações de sistema vêm informando desde suas primeiras edições que a aprendizagem não está ocorrendo na educação básica de nossas escolas do país. O estudo tem como objetivo refletir sobre os resultados da avaliação externa pelos atores da escola na avaliação institucional visando sua utilização para o planejamento pedagógico. É a avaliação institucional que possibilita a legitimidade política dos dados disponibilizados na avaliação externa através da negociação entre “os que fazem a escola”. Embora a ênfase neste trabalho sobre a avaliação institucional tenha sido sob o ângulo da reflexão dos resultados da avaliação de sistema, ressaltamos a necessidade de outros indicadores qualitativos elencados pelo coletivo que contribua para o resgate da finalidade da escola. A metodologia utilizada são as pesquisas bibliográfica e documental. Como resultados, apresentamos o crescimento das pesquisas de avaliação para o apoio pedagógico, o aprimoramento dos Boletins Pedagógicos elaborados pelas Secretarias Estaduais de Educação, além de algumas iniciativas como o PIP – Plano de Intervenção Pedagógica e o Monitoramento da Aprendizagem.
DETERMINATION OF STUDENTS' VIEWS ON THE DEVELOPMENT OF TEACHING MATERIAL FROM WASTES
Authors: Soykan Emrah , Erçağ Erinç
Published: November 2019

O objetivo deste estudo é determinar as opiniões de estudantes de educação especial sobre o processo de desenvolvimento de materiais didáticos utilizando resíduos. Esta pesquisa foi realizada com 82 alunos no último ano do curso de graduação do departamento particular de ensino eletrônico. Neste estudo, foram utilizadas como ferramentas de coleta de dados questões de entrevista semiestruturada, compostas por 5 questões. Nesta pesquisa, os alunos desenvolveram materiais para serem usados em atividades de ensino de conceitos no livro didático de conceitos. A pesquisa continuou por 12 semanas no semestre da primavera do ano acadêmico 2018-2019. No final do estudo, observou-se que os professores de pré-serviço usavam garrafas pet como o material usado mais desperdício no processo de desenvolvimento de materiais instrucionais a partir de materiais usados, e formas e texturas eram os assuntos que eles preferiam desenvolver. Com relação à necessidade de desperdício de materiais em termos de profissão docente, os alunos afirmaram que sua conscientização sobre a reciclagem aumentou ao final do processo. Em termos de ganhos no processo, os alunos afirmaram que aprenderam a trabalhar em condições difíceis no final do processo. Como o problema mais comum encontrado no processo de desenvolvimento de materiais com resíduos, os alunos afirmam que os resíduos coletados estão em uma condição muito higiênica.