bluuebunny/crossref_metadata_2025 huggingface dataset:
Avrupa Birliği’nin Geleceği: Hegemonya, İmparatorluk veya Dağılma
Authors: Akdağ Zekeriyya
Published: December 2018

Sert gücünden ziyade yumuşak gücünü öne
çıkaran, oluşum halinde olan ortak bir dış politikasıyla ve tamamlanmadığından
dolayı belirsizliği devam etmekte olan siyasal örgütlenmesiyle Avrupa
Birliği’nin, dünya politikasında ne kadar etkili olabileceği çeşitli
tartışmalara neden olmaktadır. Kimi düşünürler tarafından ekonomik dev, siyasi
cüce ve askeri bir solucan olarak nitelendirilen Avrupa Birliği dünya politikasında
nasıl bir rol üstlenebilecektir? Bu çalışmada Avrupa Birliği’nin küresel
hegemonya mücadelesinde önemli avantajlara sahip olduğu iddia edilmektedir.
Etkin işleyebilen bir siyasi yapıya inşa edebildiği taktirde Avrupa Birliği’nin
bazı yönlerden hegemonya bazı yönlerden de imparatorluk yapılarını andıracağını
öngörülmektedir. Bu çalışmada AB’nin uluslararası politikada nasıl bir rol
oynayabileceğinin analiz edilmesi amaçlanmaktadır. Bu amaca yönelik olarak
öncelikle uluslararası ilişkiler teorilerinin hegemonya anlayışları üzerinde
durulacaktır. Daha sonra özellikle de eleştirel teorinin hegemonya yaklaşımı
çerçevesinde AB’nin hegemonya mücadelesinde avantajlı ve dezavantajlı yönleri
belirlenmesi hedeflenmektedir. Ayrıca AB gelişim sürecinin imparatorlukların
ortaya çıkış süreçlerine benzeyen yönleri ortaya konmaya çalışılacaktır. Son
olarak AB’nin dağılma ihtimali değerlendirilecektir.
Çevrecilik Hareketlerinin Sınıfsal Boyutu ve Kamu Yönetimini Etkileme Potansiyeli
Authors: BAYSAL Tahir
Published: December 2018

Tarihin
ilk dönemlerinden itibaren insanın doğa ile mücadelesi, doğanın tepki vermesi
ile yıkımlara neden olmuştur. Bununla birlikte, çevresel sorunların daha çok
kapitalizmin gelişmeye başlamasıyla derinleştiği görülmektedir. Çevreci
hareketler de bu dönemlerden itibaren ortaya çıkmıştır ve genellikle kapitalist
üretim tarzı eleştirisi üzerine kurgulanmıştır. Erken dönem çevreci
hareketlerin önerdiği toplumsal yapı daha çok orta sınıfın ihtiyaç ve
beklentileri ile örtüştüğü için çevreciliğin sınıfsal boyutu bu çerçevede
değerlendirilmiştir. Ancak son dönemlerde, çevreci hareketlerin belli bir
ideolojik temeli olmaksızın, tekil olaylar üzerinden, farklı toplum
kesimlerinden katılım sağlanan etkinlikler olarak ortaya çıktığı görülmektedir.
Bu nedenle son dönemlerdeki çevreci hareketlerin, yeni toplumsal hareketler
çerçevesinde değerlendirilmesi daha uygun olacaktır.
İnsan ve Kültür
Authors: YAZICI Hasan
Published: December 2018

Bozkurt Güvenç, İnsan ve
Kültür, Remzi Kitabevi, 6. Basım, İstanbul, Ekim 1994, lV-398 s.

Bozkurt Güvenç’in İnsan
ve Kültür adlı eseri, Ön Söz (s. 5-8), İçindekiler (s. 9-12), Tablolar (s.
13-14), Şekiller (s. 14-16) ve IV Ekler ana bölüm olarak düzenlenmiş.
A legalidade penal como concretização da dignidade da pessoa humana.
Authors: Santos Natália Petersen Nascimento , Mello Sebástian Borges Albuquerque de
Published: December 2018

O presente trabalho tem como finalidade abordar a trajetória da construção do princípio da legalidade, em sede de direito penal, como instituto decorrente da construção kantiana da dignidade da pessoa humana, que reconheceu a todos os indivíduos direitos mínimos fundamentais. A partir dos dados apontados, resta inequívoco que a compreensão de dignidade apontada atendia aos ideais burgueses e funcionou como elemento indispensável à manutenção do Estado Liberal, criando limites negativos à sua intervenção, restringindo o arbítrio de seu jus puniendi. Para tanto, a partir do método dedutivo, a dignidade humana será analisada no primeiro capítulo, na condição de paradigma da intervenção punitiva, buscando-se demonstrar, no segundo capítulo, a construção da legalidade penal como elemento de garantia indispensável à sua implementação, bem como à sobrevivência do próprio Estado de Direito.
Vedação de nomeação para cargo de confiança de pessoa envolvida em improbidade administrativa como mecanismo de combate à corrupção no Brasil
Authors: Santin Valter Foleto
Published: December 2018

O artigo científico trata da vedação de nomeação para cargo de confiança de pessoa envolvida em improbidade administrativa ou má conduta como mecanismo complementar de combate à corrupção da Administração Pública, ao lado de instrumentos jurídicos de natureza penal, civil e administrativa. A nomeação e a manutenção da contratação de condenado em segunda instância ferem o princípio da legalidade, da moralidade administrativa, da impessoalidade, da eficiência e da igualdade. Há pertinência de discussão jurídica do tema em ação civil pública, por sua dimensão coletiva. O objetivo do estudo é debater a problemática da nomeação sem concurso de pessoa envolvida em improbidade administrativa e afronta a princípios constitucionais, concluindo pela irregularidade e inadequação de nomeação e manutenção de pessoa condenada em segunda instância para cargo em comissão e de livre nomeação. Adotou-se o método hipotético-dedutivo, e foram estudados autores nacionais e internacionais, por meio da pesquisa bibliográfica em livros e periódicos.
Evaluation of the ultrasound test for estimating the depth of cracks in concrete
Authors: Tavares de Araújo Silva Marcela , Aquino Rocha Joaquin Humberto , Barreto Monteiro Eliana Cristina , Póvoas Yêda	V. , Kohlman Rabbani Emilia R.
Published: December 2018

The objective of this study is to evaluate the ultrasound test to estimate the depth of cracks in concrete, using a mathematical model published in the literature, and to verify this depth with more accurate results. Four concrete test specimens were molded for each proposed crack depth (5 cm, 10 cm, and 15 cm), simulated using zinc plates, placed during molding and removed before concrete hardening. The results show that the test is sensitive enough to detect the presence of the cracks in the concrete. The mathematical model used allowed for an estimation of the depths of most cracks, but the results are scattered and have a high margin of error for the depths of 5 cm and 15 cm. The cracks of 10-cm depth produced better results.
Resistance to compression and microstructure of concrete manufactured with supersulfated cements-based materials of volcanic origin exposed to a sulphate environment
Authors: Maldonado Bandala Erick Edgar , Cabrera Luna Karina , Escalante García José Ivan , Nieves Mendoza Demetrio
Published: December 2018

This research presents the results of concretes made with supersulfated cements (SSC) volcanic material bases. The concretes were cured under two regimes one for 24 h at 25 ° C and one for 22 h at 60 ° C and then at 25 ° C. The specimens were exposed to two conditions, dry under laboratory conditions and immersed in a solution with 3.5% CaSO 4 at 25 ° C for up to 180 days. After 180 days, the concrete with a 5% An-10% PC-10% CaO-75% PM cementant exposed to the CaSO4 solution achieved a compressive strength of 46 MPa and 44 MPa dry under conditions of laboratory. The microstructure was analyzed by scanning electron microscopy, energy dispersive spectroscopy and XRD, showing that the main hydration products are C-S-H and ettringite.
Translanguaging practices in CLIL and non-CLIL biology lessons in Switzerland
Authors: Bieri Aline S.
Published: December 2018

Studies on translanguaging in Content and Language Integrated Learning (CLIL) programmes have predominately focused on the use of the first language (L1) as a potential resource in CLIL lessons. This article argues that translanguaging practices that involve more than students’ L1 are valuable, even necessary, pedagogies in both CLIL and non-CLIL biology lessons. The qualitative analysis of transcripts from 31 CLIL (English) and non-CLIL (German) biology lessons in Switzerland reveals that translanguaging involving the source languages of the technical vocabulary represents a particularly useful tool for negotiating meaning. Only one of the two instructors who participated in this study engaged in this kind of translanguaging when discussing the semantic content of technical vocabulary. Interestingly, this instructor had more extreme attitudes concerning classroom linguistic behaviour, upholding the need for monolingual (i.e., English-only) practices in his classroom. This observation indicates that teachers’ stances towards translanguaging do not necessarily coincide with their practices.
Recensione: Firpo, Elena, & Sanfelici, Laura (2016). La visione eteroglossica del bilinguismo: spagnolo lingua d’origine e Italstudio. Modelli e prospettive tra gli Stati Uniti e l’Italia. Milano, Italia: Edizioni Universitarie Lettere Economia Diritto - Lingue Culture Mediazioni.
Authors: Scibetta Andrea
Published: December 2018

Questa recensione intende presentare i contenuti del volume La Visione Eteroglossica del Bilinguismo: Spagnolo Lingua d’Origine e Italstudio di Elena Firpo e Laura Sanfelici. Il libro offre una ricca panoramica sulle politiche linguistiche volte alla promozione del bilinguismo in contesti educativi nordamericani ed europei. Inoltre, il volume si focalizza su un progetto di ricerca-azione sperimentale, chiamato LI.LO (Lingua Italiana, Lingua d’Origine), condotto dal 2013 al 2015 in una scuola diGenova con una considerevole percentuale di alunni ispanofoni. L’obiettivo principale di tale progetto era quello di contribuire a valorizzare un’educazione bilingue più inclusiva nei confronti della lingua spagnola (intesa come lingua di origine) attraverso pratiche didattiche basate sul translanguaging.
Translanguaging in higher education. Beyond monolingual ideologies. Bristol, United Kingdom: Multilingual Matters.
Authors: Guerrero-Rodriguez Paola
Published: December 2018

Esta reseña se centra en el volumen Translanguaging in Higher Education, el cual ofrece un panorama global que muestra distintas prácticas translinguales en diferentes puntos geográficos a través de distintos autores y en áreas que van más allá de la enseñanza de lenguas, contribuyendo en gran medida al naciente campo del translingüismo como práctica educativa.
Reseña: García, Ofelia, Ibarra Johnson, Susanna, & Seltzer, Kate (2017). The translanguaging classroom: Leveraging student bilingualism for learning. Philadelphia, Pennsylvania: Caslon.
Authors: Gasca Jiménez Laura
Published: December 2018

Basado en la fundamentación teórica presentada en García y Li Wei (2014), que entiende el translenguar como “un enfoque centrado en el uso de la lengua, el bilingüismo y la educación de los bilingües que considera las prácticas lingüísticas de los bilingües no como dos sistemas lingüísticos autónomos (…) sino como un único repertorio lingüístico con características que has sido socialmente construidas y atribuidas a dos lenguas separadas” (p. 2), el trabajo de García, Ibarra Johnson y Seltzer (2017) posibilita la transición de la teoría translenguar a su implementación en contextos educativos bi/multilingües. Esta reseña sitúa la obra dentro del giro plurilingüe, ofrece una breve descripción de su contenido y destaca su contribución al campo de la enseñanza.
Predicting the Amount of Fertilizers using Linear Programming for Agricultural Products from Optimum Cropping Pattern
Authors: Heydari Mohammad , Othman Faridah , Salarijazi Meysam , Ahmadianfar Iman , Sadeghian Mohammad
Published: December 2018

The most crucial problem in resolving the challenges of water operations is usually maintaining the equilibrium between supply and demand for water especially in arid and semi-arid regions like most parts of Iran. In this research, to achieve the optimal cropping pattern, firstly, the study area was classified into six classes and just 2100 hectares of farming area in the top class that had the best agricultural conditions were analyzed. The water assigned to the described land was about 6 MCM [million cubic meters]. Seventeen essential farming product of the area were used for this modeling. In order to maximize the final worth of farming with regard to the quantity of acres of each crop, the optimization model has been applied. The explained model solved by linear programming and also evolutionary algorithms in MS Excel. The results demonstrated full conformity of these two techniques. Nitrogen, Phosphate and Potassium fertilizer have the most consumption for all the products. Also, due to high demand the maximum amount of fertilizer belongs to wheat, barley and rice and the lowest amount of required fertilizer belongs to cotton with the value of 3.8 tons.
Developing a neutral equilibrium device as dynamic virtual piers for an emergency relief bridge
Authors: Shih Ming-Hsiang , Sung Wen-Pei , Wang Yu-Cheng
Published: December 2018

Every year, many natural disasters strike Taiwan, destroying bridges and disrupting traffic. To allow shipping of relief provisions and salvage, fabricated steel bridges are often used to construct emergency relief bridges. This kind of bridge must meet strength and functionality requirements. Strength depends on the materials used, while functionality depends on displacement control. These two requirements affect the section design of the bridge deck. In order to quickly build a light-weight bridge for emergency relief with displacement control, a neutral equilibrium mechanism is proposed and developed to control the deflection of an emergency relief bridge. A neutral equilibrium mechanism is a system with an internal control mechanism that can actively change the internal structure. Structural transformation causes the size variation of the action force to respond to continuous changes in bridge deflection. This mechanism can expand the effective span of the bridge, maintain its strength and functionality, and increase the convenience of building and mobility. Experimental results reveal that a virtual pier at the center of a bridge with this proposed mechanism installed can control vertical deflection caused by vehicles carrying heavy loads. Test and analysis records also reveal that the vertical displacement at the center of a bridge with the neutral equilibrium mechanism installed is close to zero. The practicality of this neutral equilibrium mechanism has been verified by experiment.
Time history analysis formulation in SCAD FEA software
Authors: Fialko Sergiy , Karpilovskyi Viktor
Published: December 2018

This paper provides the formulation of the problem of forced vibrations of structures, which has the following peculiarities: equations of motion are formulated in absolute coordinates allowing to take into account the asynchronous excitations of the supports, smoothing of the time functions for forced displacements with the help of Hermite polynomials, and also the possibility of considering damping that does not obey the Rayleigh hypothesis.
Improved technique for the earthquake proof suspension building
Authors: Azizov Taliat , Jurkowska Nadzieja
Published: December 2018

This paper presents the refined technique of dynamic calculations for suspension earthquake-resistant building. The improved design schemes of suspension buildings and structures have been demonstrated. Two versions of suspension buildings have been analysed. For the system with the building as a point mass suspension on the fixed bearing frame thread, a system of Lagrange differential equations of the second kind has been derived. For the building presented as a rigid rod with the length equal to its height, also suspended on the supporting frame, the solution is performed using principles of dynamic calculations and methods of theoretical mechanics. It has been demonstrated, that the horizontal force in the suspension building is ten times less than the force in a traditional cantilever building, and that for the real horizontal stiffness of the supporting frame the dynamic strains are far from resonant values. The possibility of adjusting dynamic forces by regulating the stiffness of the supporting frame, length of the thread of suspension and other parameters. The proposed calculation schemes are useful for the preliminary calculations, and the finite design of the suspension building can be performed in modern software packages (e.g., Ansys, Abacus, etc.).
Analysis of vibration propagation in the human body
Authors: Burdzik Rafał
Published: December 2018

The human vibration is a multi-disciplinary subject involving many disciplines. A special area in the field of vibration research is the transport system. The paper presents the results of preliminary tests, the aim of which was to analyze the propagation of vibrations forced by the movement of the vehicle floor on persons sitting in a car. During research vibration were registered in measurement nodes, in which the composition always included the signal of oscillation of the enforcing plate and specific locations on the human body. This paper presents results of vibration recorded on the extinction plate and on the head of the passenger.
Improvement of vibration isolation performance of QZS platform in chaotic interval based on damping increase control method
Authors: Shi Peicheng , Shi Peilei , Nie Gaofa , Tang Ye , Pan Daoyuan
Published: December 2018

In order to further extend the effective isolation range of the quasi-zero stiffness (QZS) platform, the vibration isolation performance of the chaotic interval is improved. For a class of self-design quasi-zero-stiffness (QZS) vibration isolation platform, starting with chaotic motion of the non-linear vibration isolation system, the jumping interval is eliminated by means of transient chaos phenomena. The control method of damping increase is proposed in combination with the application of the Von der Pol Plane, which can make the jumping-down frequency to be decreased below the external excitation frequency, thus the effective isolation range of vibration isolation platform can be extended, and a lower isolation frequency can be obtained. Research shows that, when the solution of the motion equation of the platform system falls to resonant branch led by certain initial conditions, the resonant amplitude response will jump to the non-resonant branch by transient damping increase control method, which the removal time is determined by the Von der Pol Plane, hence making the platform system obtain the ideal vibration isolation performance. The research results have a significant importance for improving the low frequency and ultra-low frequency vibration isolation effect of such platforms, which lays a foundation for the popularization and engineering application, and can also provide a reference for control of other nonlinear vibration system.
An intelligent fault diagnosis method of rotating machinery using L1-regularized sparse filtering
Authors: Qian Weiwei , Li Shunming , Wang Jinrui , An Zenghui , Jiang Xingxing
Published: December 2018

Traditional intelligent fault diagnosis methods take advantage of diagnostic expertise but are labor-intensive and time-consuming. Among various unsupervised feature extraction methods, sparse filtering computes fast and has less hyperparameters. However, the standard sparse filtering has poor generalization ability and the extracted features are not so discriminative by only constraining the sparsity of the feature matrix. Therefore, an improved sparse filtering with L1 regularization (L1SF) is proposed to improve the generalization ability by improving the sparsity of the weight matrix, which can extract more discriminative features. Based on Fourier transformation (FFT), L1SF, softmax regression, a new three-stage intelligent fault diagnosis method of rotating machinery is developed. It first transforms time-domain samples into frequency-domain samples by FFT, then extracts features in L1-regularized sparse filtering and finally identifies the health condition in softmax regression. Meanwhile, we propose employing different activation functions in the optimization of L1SF and feedforward for considering their different requirements of the non-saturating and anti-noise properties. Furthermore, the effectiveness of the proposed method is verified by a bearing dataset and a gearbox dataset respectively. Through comparisons with the standard sparse filtering and L2-regularized sparse filtering, the superiority of the proposed method is verified. Finally, an interpretation of the weight matrix is given and two useful sparse properties of weight matrix are defined, which explain the effectiveness of L1SF.
Stability and bifurcation of a flexible rod-fastening rotor bearing system with a transverse open crack
Authors: Wang Nanshan , Liu Heng , Liu Yi , Xu Zhidong
Published: December 2018

The stability and bifurcation of a flexible rod-fastening rotor bearing system with a transverse open crack in a fastening rod are investigated. The nonlinear dynamic model of a cracked rod-fastening rotor system is established based on the finite element method. A methodology is introduced where shooting method, path-following technique, and Floquet theory are combined for determining the periodic solutions and stability margins of the system. The effects of crack depth and mass eccentricities on the system are studied by numerical simulations. Results show the system stability will reduce due to the presence of crack, two saddlebacks occur on the periodic-doubling borderline whose bottom location corresponds to the two resonant peak of bearing node, and effects of the crack and mass eccentricity play a dominant position in different conditions respectively. Comparisons between the cracked rotor system and the intact ones referred in the literature indicate that some special characteristics of cracked rod-fastening rotor system in motion orbits and frequency components can be used to detect the presence of crack and its depth.
Dynamic characteristics analysis on shearer drum in condition of cutting coal with different distributed rocks
Authors: Zeng Qingliang , Jiang Kao , Gao Kuidong , Wan Lirong
Published: December 2018

Dynamic characteristics analysis on shearer drum is an important aspect in shearer design and a well-structured shearer drum provides better performance in vibration reduction and service life extension. To make reference for structure improvement, many researchers have focused on the dynamic analysis on cutting pick. However, the simplified model such as single pick, linear motion and continuous coal in the previous study made it divorced from actual situations underground. On basis of this, the model of shearer drum with several arranged picks and the coal model with some distributed rock have been set up in order to consist with the real working conditions. Through simulation, it can be found that the mean force in X-direction is little influenced by rock distribution, but the peak force in X-direction fluctuates greatly under different rock distribution. During the analysis on the peak force, it can be found that this kind of force could be cut down effectively when the rock was distributed on the top of the shearer cutting range. Based on these conclusions, we can program the cutting strategy to lower the influence of cutting forces on the shearer and its drum in the future.
Development of miniature spherical ultrasonic motor using wire stators
Authors: Wang Fulin , Nishizawa Uichi , Tanaka Hideki , Toyama Shigeki
Published: December 2018

The purpose of this study is to develop a miniature motor for directional adjustment of a vascular endoscopic camera. Spherical ultrasonic motor not affected by magnetic fields is used in the miniature motor. The characteristic of spherical ultrasonic motor is that one motor has multi degree of freedom in rotational direction. Wire is used as stator to realize miniaturization of the motor, so it is called miniature spherical ultrasonic motor using wire stators. Firstly, the pressing force between a stator and a spherical rotor is discussed, which is important for developing a miniature spherical ultrasonic motor using wire stators. As a result, it can be clarified that there is an optimum value for the pressing force. Secondly, the starting torque is investigated, which is one characteristic of the miniature spherical ultrasonic motor using wire stators. The relationship between the frequency and amplitude of the applied AC voltage and the starting torque is clarified. Finally, the control method of the rotational direction of a miniature spherical ultrasonic motor using wire stators is discussed. A PWM control method is proposed to control the rotational direction of an ultrasonic motor. In this PWM control, traveling wave and standing wave generated on a wire stator are used. Experimental results show that the proposed method is effective.
Application of time-frequency method for research on influence of locomotive wheel slip on vibration
Authors: Burdzik Rafał , Konieczny Łukasz , Deuszkiewicz Piotr , Vaskova Iveta
Published: December 2018

Wheel-rail contact phenomena is problem considered in many scientific manuscripts. Mostly the research is focused on wear, friction and forces analysis. This paper presents research on rail vibration generated due to rail vehicle passage. The problem investigated was the influence of wheel slip phenomena on vibration of rail. The locomotive wheel slip can be caused due to braking, flat wheel or defect (wear) of rail surface. Therefore, results of presented investigations can be useful for many applications, including rail vehicle driving monitoring system, control system, especially due to braking distance or diagnostics of wheels of railway tracks. The research was taken place on experimental test track. For the complex analysis horizontal and vertical vibration were measured. The investigation requires regular train vehicle drive condition, where the wheels are rolling on the rail surface without wheel slip and second case for drive process including wheel rolling and wheel slip (friction rolling and sliding). The vibration signals are non-stationary thus its processing should be conducted simultaneously in the time and frequency domain, as time-frequency representation (TFR). For this purpose, Short Time Fourier Transform (STFT) and Continuous Wavelet Transform (CWT) can be employed.
Simplified theoretical treatment of lateral structural properties under crowd excitation
Authors: Dong Yun , Gao Yan An , Zhu Ye , Zhang Peng
Published: December 2018

Walking crowd-induced lateral vibrations on slender structures have attracted considerable attention. The improper vibration of a structure adversely affects human comfort. To explore the effects of crowds on lateral structural properties, a pedestrian from a crowd is simulated by a walking bipedal robot. A simplified theory for structural vibration is proposed based on the assumptions of uniform distribution and synchronized walking of pedestrians. This theory can be used to describe the effect of the change in crowd size on lateral structural damping and the frequency of the structure. The method can estimate the variations in structural properties in the case of a certain crowd for engineering design. The results show that the increase in crowd size results in decrease in structural natural frequency in the lateral direction, but increases structural damping. The influence of the crowd on structural properties agrees well with the non-simplified model. Change in walking frequency has little influence on the structural properties. However, the continuous increase in crowd size on structure top causes a non-convergent amplification of dynamic response under a resonant walking excitation. This research provides a quantitative assessment on the effect of crowd size on the change in structural properties for structural design or serviceability evaluation.
Dynamic characteristic analysis on the bit lateral steering force of push-the-bit rotary steerable bottom hole assembly
Authors: Wang Heng , Guan Zhi Chuan , Zhao Guo Shan
Published: December 2018

A dynamic finite element model was established to characterize the motion state of the rotary steerable bottom hole assembly (RSBHA). Then the steering lateral force on bit was obtained after the motion equation was solved. The relation between the bit steering force and the pads offset pointing towards the high side direction of the borehole was gotten and the effects of the rotary speed on the bit lateral steering force were analyzed. Results showed that the near-bit stabilizer would contact the wellbore wall with the increasing of the pads offset, resulting in an inflection point presenting on the relation curve between the bit inclination force and the pads offset value. The larger pads offset value was, the more concentrated bit side cutting would be. Rotary speed had a small effect on time average of the bit lateral steering force but could enlarge the action range on both sides of the high side direction of the borehole.
Dynamic modeling and simulation of three-member robot manipulator
Authors: Mickoski Hristijan , Mickoski Ivan , Djidrov Marjan
Published: December 2018

Dynamic model analysis of manipulator as mechanical structure is presented for further purpose in actuator selection and process for establishing control strategy. Control problems involves determination of control forces and moments applied in manipulator joints that will ensure movements along a certain defined trajectory. Trajectory design is the basis for the manipulator control process. This problem is quite complex because the manipulator is a connected system in which the movement of a member affects the movement of other. Therefore, in following is presented a method for forces and moments determination in kinematic joints of a three-member manipulator analytically and also by using simulation dynamical model in the Matlab/Simulink program package. The friction forces in the kinematics joints are not taken into account.
Basal-like Breast Cancer: Comparison of Imaging Characteristics
Authors: Choi Bo Bae , Jang Hyeon Ji , Choi Song I.
Published: December 2018

Background:

Basal-like carcinoma is one of the breast subtypes that lacks expression of
the estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor
2 (HER2). It has a poor prognosis and aggressive behavior. It is in a heterogeneous group with
various other types of cancer, including metaplastic carcinoma, carcinomas with medullary features,
medullary carcinoma, adenoid cystic carcinoma, secretory carcinoma, and invasive carcinoma
arising in the setting of BRCA1 mutations. Imaging features of basal-like cancers have not
been uniform, and there are no studies with imaging comparisons between basal-like carcinomas.

Objective:

To compare imaging features of basal-like carcinomas and to understand their
characteristics.

Methods:

By using our radiologic database, we retrospectively searched 37 cases of metaplastic
carcinoma and 44 cases of invasive carcinoma with medullary features (ICMF). Two radiologists
reviewed images according to ACR BI-RADS lexicon.

Results:

The higher Ki-67 and absence of calcifications were statistically significant in ICMF than
in metaplastic carcinoma. Metaplastic carcinoma demonstrated oval shape and parallel orientation
more frequently. ICMF showed more irregular shape and angular margin on ultrasound, irregular
or spiculated margin on breast MRI. ICMF showed more delayed washout pattern of enhancement
than metaplastic carcinoma. Intratumoral T2, a very high signal was noted more in metaplastic carcinoma.

Conclusion:

Our study presents variable imaging features observed between basal-like carcinomas.
Although it is not sufficient to predict clinical progress, aggressiveness or prognosis of basal-like
carcinomas, the results of this study will be helpful in understanding and diagnosing various basallike
carcinomas.
Morphological, Molecular, Biochemical and Nutritional Characterization of Three Major Thais Species from the Sindh Coast of Pakistan
Authors: Ali Syed Abid , Humayun Fozia , Munir Iqra , Ahmad Shakil , Ayub Zarrien , Fatima Habib , Zehra Lakht-e- , Haider Muhammad Samee
Published: December 2018

Objective:

The present study was conducted to investigate the biomass assessment, morphological and molecular identification, nutritive status and biochemical characterization of three majorThaisspecies (T. bufo,T. hippocastanumandT. rudolphi) from the Sindh Coast, Pakistan.

Methods:

Samples were collected from Buleji and Paradise Point at the Sindh Coast. Species were identified morphologically as well as genetically by amplifying two mitochondrial 16S rDNA & Cytochrome Oxidase I (COI) and one nuclear (Histone H3) genes. Shell microstructure and chemistry were also studied by scanning electron microscopy and Energy Dispersive X-ray spectrometry (EDX). The body muscle was dissected and used for nutritional composition determination such as estimation of total protein, carbohydrates, lipids, protein fingerprinting by Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis (SDS-PAGE) and Size-Exclusion - Fast Protein Liquid Chromatography (SEC-FPLC), amino acid and fatty acid analysis.

Results:

Nutritionally, the total protein was found to be the major content followed by carbohydrate and lipid in the threeThais sp. The presence of medicinally important hemocyanin as abundant hemolymph protein was confirmedviaSDS-PAGE and SEC FPLC. Nine different types of fatty acids and a high concentration of essential amino acids were also determined.

Conclusion:

Our findings suggest thatThais sp.are nutritionally rich and can be consumed as a valuable marine resource to overcome the malnutrition problem in developing countries.
Supramolecular Macrostructures in the Mechanisms of Catalysis with Nickel or Iron Heteroligand Complexes
Authors: Matienko L.I. , Binyukov V.I. , Mil E.M. , Zaikov G.E.
Published: December 2018

Background:

The AFM-techniques have been used for the research of the role of intermolecular
H-bonds and stable supramolecular nanostructures, based on effective catalysts of oxidation
processes, which are also models of Ni(Fe)ARD Dioxygenases, in mechanisms of catalysis.

Methods and Results:

The role of Histidine and Tyrosine ligands in the mechanisms of catalysis by
FeARD on model systems is discussed based on AFM and UV-Spectroscopy data.

Conclusion:

We first offer the new approach – method of atomic force microscopy (AFM) – to study
the possibility of the formation of supramolecular nanostructures, and also for assessing of role the
intermolecular hydrogen bonds (and the other intermolecular non-covalent interactions) in mechanisms
of homogeneous and enzymatic catalysis with nickel and iron complexes.
Clinical Requirements of Future Patient Monitoring in the Intensive Care Unit: Qualitative Study (Preprint)
Authors: Poncette Akira-Sebastian , Spies Claudia , Mosch Lina , Schieler Monique , Weber-Carstens Steffen , Krampe Henning , Balzer Felix
Published: December 2018

BACKGROUND

In the intensive care unit (ICU), continuous patient monitoring is essential to detect critical changes in patients’ health statuses and to guide therapy. The implementation of digital health technologies for patient monitoring may further improve patient safety. However, most monitoring devices today are still based on technologies from the 1970s.

OBJECTIVE

The aim of this study was to evaluate statements by ICU staff on the current patient monitoring systems and their expectations for future technological developments in order to investigate clinical requirements and barriers to the implementation of future patient monitoring.

METHODS

This prospective study was conducted at three intensive care units of a German university hospital. Guideline-based interviews with ICU staff—5 physicians, 6 nurses, and 4 respiratory therapists—were recorded, transcribed, and analyzed using the grounded theory approach.

RESULTS

Evaluating the current monitoring system, ICU staff put high emphasis on usability factors such as intuitiveness and visualization. Trend analysis was rarely used; inadequate alarm management as well as the entanglement of monitoring cables were rated as potential patient safety issues. For a future system, the importance of high usability was again emphasized; wireless, noninvasive, and interoperable monitoring sensors were desired; mobile phones for remote patient monitoring and alarm management optimization were needed; and clinical decision support systems based on artificial intelligence were considered useful. Among perceived barriers to implementation of novel technology were lack of trust, fear of losing clinical skills, fear of increasing workload, and lack of awareness of available digital technologies.

CONCLUSIONS

This qualitative study on patient monitoring involves core statements from ICU staff. To promote a rapid and sustainable implementation of digital health solutions in the ICU, all health care stakeholders must focus more on user-derived findings. Results on alarm management or mobile devices may be used to prepare ICU staff to use novel technology, to reduce alarm fatigue, to improve medical device usability, and to advance interoperability standards in intensive care medicine. For digital transformation in health care, increasing the trust and awareness of ICU staff in digital health technology may be an essential prerequisite.

CLINICALTRIAL

ClinicalTrials.gov NCT03514173; https://clinicaltrials.gov/ct2/show/NCT03514173 (Archived by WebCite at http://www.webcitation.org/77T1HwOzk)
Evidence-Based Practice Awareness And Knowledge levels Among Health Care Practitioners in Saudi Tertiary Hospitals (Preprint)
Authors: Barakah Deena
Published: December 2018

UNSTRUCTURED

Estimating the awareness levels of Evidence-Based Practice (EBP) among health care providers is currently active area of research. This study main objective is to evaluate the medical staff awareness about Evidence-Based Practice and its constitutes , tools and resources at Saudi General Tertiary Hospitals. The study was carried out at King Saud Medical City (KSMC) in Riyadh, Saudi Arabia. The research main data were collected predominantly using a cross-sectional survey questionnaire.
The research results showed that showed that majority of participants have a good understanding of the term EBP (59.7%) ,while having a vague idea (34.7%) and with No idea are only (5.6%). Although of a high percentage of the participants realize the concept of EBP , levels of knowledge about various EBP tools vary considerably The less known EBP tools were for: Confidence interval (34.2%) , and P- value tool , Odd ratio ,and Heterogeneity (31.9) followed by Absolute Risk (29.8 %) and Sensitivity tool (27.7%). Among the most known EBP tools with “Good Understanding” level were for: Meta Analysis (27.7%) followed by Systematic review and Publication Bias both at 25.3%) level . The Chi-Square tests for the correlation of specialty rank and awareness of EBP indicates that there is no statistically significant association between Profession specialty rank or gender with EBP awareness or its tool knowledge levels .
Main results from this research showed that Evidence-Based Practice awareness at King Saud medical city hospitals is at acceptable level. Furthermore, more intensive education and training and enhancement of EBP resources IT medical education resources are needed to increase its knowledge and understanding , and to support the diffusion of Evidence-Based Practice in daily practice.
The Role of Cognitive Behavioral Therapy in Opioid Use Reduction in Pediatric Sickle Cell Disease: Protocol for a Systematic Review (Preprint)
Authors: Anderson Ashaunta T , Tran Nhu , Smith Kathryn , Kelley-Quon Lorraine I
Published: December 2018

BACKGROUND

Sickle cell disease (SCD) is a genetic disorder of red blood cells that results in acute and chronic health problems, including painful syndromes. Opioid analgesia is the mainstay of moderate to severe pain management in SCD, although adjunctive psychosocial approaches such as cognitive behavioral therapy (CBT) are increasingly incorporated. CBT has been used in populations of various ages to address a wide range of issues, such as mood disorders and chronic pain. It is unclear if effective CBT reduces the use of opioids to manage pain in pediatric SCD.

OBJECTIVE

The aim of this study is to evaluate the association between CBT and decreased opioid use in children with SCD.

METHODS

In this systematic review protocol, we describe our approach to applying predetermined eligibility criteria to searches of PubMed (including Medline), Embase, Cochrane, Web of Science, and PsycINFO databases, as well as Google Scholar and grey literature. In particular, we will use keywords to search for English-language studies of individuals with SCD aged 21 years old and younger published before November 2018. Keywords will allow us to assess for the primary outcome—total use of opioid medications—and the secondary outcomes—pain intensity and emotional functioning—during pain management using a combined opioid and CBT approach, opioids alone, or CBT alone. The review team will use standardized abstraction forms to review articles at the title, abstract, and full-text levels. Finally, reviewers will assess the risk for bias, quality of evidence, and adequacy of data for quantitative versus qualitative synthesis. If meta-analysis is deemed inappropriate, a narrative review will be conducted.

RESULTS

We will report a summary of findings across studies that meet eligibility criteria to compare the extent to which adjunctive CBT is associated with decreased opioid use among children with SCD.

CONCLUSIONS

This systematic review will present the current state of the evidence on CBT and opioid use in pediatric SCD, which may inform clinical practice and health policy to support optimized pain management.

INTERNATIONAL REGISTERED REPOR

PRR1-10.2196/13211
Examining the Impact of a Personalized Self-Management Lifestyle Program Using Mobile Technology on the Health and Well-Being of Cancer Survivors: Protocol and Rationale for a Randomized Controlled Trial (The Moving On Study) (Preprint)
Authors: Groarke Jenny M , Richmond Janice , Kelly Mary Grace , McSharry Jenny , Groarke AnnMarie , Kerr Tommy , Singaroyan Nina , Harney Owen , Haughey Charlene , Glynn Liam , Masterson Eimear , O Donnell Aoife , Duffy Karen , Walsh Jane
Published: December 2018

BACKGROUND

Cancer survivorship in Ireland is increasing in both frequency and longevity. However, a significant proportion of cancer survivors are overweight. This has negative implications for long-term health outcomes, including increased risk of subsequent and secondary cancers. There is a need to identify interventions, which can improve physical and psychological outcomes that are practical in modern oncology care. Mobile health (mHealth) interventions demonstrate potential for positive health behavior change, but there is little evidence for the efficacy of mobile technology to improve health outcomes in cancer survivors.

OBJECTIVE

This study aims to investigate whether a personalized mHealth self-management lifestyle program is acceptable to participants and can improve physical and psychological outcomes of a subgroup of cancer survivors with increased health risks related to lifestyle behaviors.

METHODS

A sample of 123 cancer survivors (body mass index >25 kg/m2) was randomly assigned to the control (n=61) or intervention (n=62) group. The intervention group attended a 4-hour tailored lifestyle information session with a physiotherapist, dietician, and clinical psychologist to support self-management of health behavior. Over the following 12 weeks, participants engaged in personalized goal setting to incrementally increase physical activity (with feedback and review of goals through short message service text messaging contact). Objective measures of health behavior (ie, physical activity) were collected using Fitbit (Fitbit, Inc). Data on anthropometric, physiological, dietary behavior, and psychological measures were collected at baseline (T0), 12 weeks (T1; intervention end), and 24 weeks (T2; follow-up). Semistructured interviews were conducted to explore the retrospective acceptability of the Moving On program from the perspective of the recipients.

RESULTS

This paper details the protocol for the Moving On study. The project was funded in August 2017. Enrolment started in December 2017. Data collection completed in September 2018. Data analysis is underway, and results are expected in winter 2019.

CONCLUSIONS

The results of this study will determine the efficacy and acceptability of an mHealth intervention using behavior change techniques to promote health behaviors that support physical health and well-being in cancer survivors and will therefore have implications for health care providers, patients, health psychologists, and technologists.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/13214
Coherencia partidaria del PJ y la UCR dentro de la Cámara de Diputados de la Nación Argentina (1996-2010)
Authors: Caruncho Lucia
Published: December 2018

El trabajo se interesa por el grado de incoherencia ideológico-programática de los bloques legislativos nacionales Partido Justicialista (PJ) y Unión Cívica Radical (UCR) de Argentina, entre 1996 y 2010. Para ello se construyeron tres dimensiones ―ideológica, programático-económica y programático-valorativa― y se calculó el índice de incoherencia para clasificar los bloques en tres niveles: alto, medio y bajo. Los principales resultados mostraron que la ucr es más coherente que el pj; que existen divergencias entre los dos partidos, las dimensiones y los años de estudio, y que los factores mencionados por la literatura no siempre explican las diferencias en los niveles de incoherencia.
El papel de las emociones sociales y personales en la participación política
Authors: Corduneanu Victoria Isabela
Published: December 2018

 El artículo propone un análisis del papel de las emociones, los afectos y los sentimientos en la participación política tanto no convencional (movilizaciones sociales) como tradicional (el voto), a través de una investigación cualitativa de las movilizaciones de 2014 (Ayotzinapa), 2017 (Marcha contra Trump), y una investigación cuantitativa tipo panel sobre las emociones de los sujetos durante y después de la campaña electoral de 2018. Encontramos que las emociones sociales y socializadas, así como las emociones personales desempeñan un papel importante en la movilización; asimismo, las emociones personales cambian antes, durante y después de la campaña electoral, de lo negativo hacia lo positivo; se detalla también qué emociones sociales se expresan desde 2012 y cómo ha sido su evolución hasta 2018: ira, miedo y frustración se han movido hacia esperanza y tranquilidad. Una limitante del estudio es el trabajar con emociones sociales y socializadas (en el caso de las movilizaciones) y con emocionales personales (en el caso de la campaña electoral), lo que invita a una conceptualización más profunda en el tema de las emociones.
Gobierno Abierto en México: hacia una discusión realista de su factibilidad
Authors: Figueras Zanabria Víctor Manuel
Published: December 2018

El Gobierno Abierto (GA) se considera una propuesta novedosa de reforma gubernamental y promoción de la democracia. Este trabajo plantea la necesidad de llevar a cabo una discusión realista sobre su factibilidad en México. Para ello se analizan la transparencia, las tecnologías de información y comunicación (TIC) y la participación ciudadana. Se revisan supuestos no explícitos de su relación con el ga y se presenta información sobre las condiciones imperantes en México. El principal hallazgo es que las leyes, instituciones y procedimientos para acceder a la información gubernamental y para participar, así como las herramientas técnicas disponibles (TIC), mantienen barreras que impiden a los ciudadanos conocerlo, entenderlo y utilizarlo. Existen también resistencias burocráticas, desconocimiento y desinterés de los ciudadanos por participar, además de desconfianza interpersonal y hacia el gobierno. Todo ello integra un escenario poco favorable para el desarrollo de un ga en México en el corto plazo.