bluuebunny/crossref_metadata_2025 huggingface dataset:
Tables of extended distances for S, SS and sS
Authors: Hodgson J H , Allen J F J , Cock J I
Published: April 2019

Tables of extcnded distances, consistent with those already published for the P phases, are prosented for those S phases which are likely to be useful in fault-plane studies. As in earlier papers, the extended distances are given for surface focus, and for focal
depths from O·00R to O·12R in steps of O·1R.
Motion at the source of an earthquake
Authors: Byerly P , Stauder W V
Published: April 2019

Nakano's theoretical development emphasizes the effect of seismic disturbances at large distances from the source and develops equations of first motion in P and S for several types of source mechanisms. These equations are compared to the methods of approach of
various investigators, and two mechanisms in particular are singled out: a single couple, which represents motion along a fault, and a double couple, which represents a compressive and tensile stress at right angles. Methods of transformation and projection permit the application of the theory for
an infinite homogeneous earth to the heterogeneous earth. Possible uses of S phases are noted. Single observations of the first motion of S offer the possibility of resolving the ambiguity in fault-plane solutions from P alone in which the single couple is the mechanism assumed. Identification of
the second nodal surfaces of SV and SH offers a criterion for deciding which mechanism, the single couple or the double couple, is operative in particular earthquakes. Further, simple relations involving the ratios SH/SV, P /SH, P /SV suggest other approaches to the problem of motion at the source
of an earthquake. S phases, however, are to be used with great care.
Primary intracranial leiomyoma - A case report and literature review
Authors: Jehendran Mary Varunya , Monish V , Aswathappa Suresh , Ramprakash H V
Published: April 2019

Primary intracranial leiomyoma is a rare tumour of mesenchymal origin, with less than 30 cases reported in literature including two cases from the Indian subcontinent. In this article, we describe a case of primary intracranial leiomyoma in an immunocompromised patient with a brief review of literature.
Upper limb peripheral neuropathy in sickle cell anemia: MR neurography appearances
Authors: Poh Feng , Hlis Rocco , Chhabra Avneesh
Published: April 2019

Sickle cell anemia is an inherited disorder with many systemic complications. Peripheral neuropathy related to this disorder has been sparsely reported. We report an interesting case of upper limb peripheral neuropathy from sickle cell disease with emphasis on MR neurography appearances and electrophysiology correlation.
Role of 18F-fluorodeoxyglucose positron emission tomography/computed tomography in restaging and prognosis of recurrent melanoma after curative surgery
Authors: Malik Dharmender , Sood Ashwani , Mittal Bhagwant Rai , Basher Rajender Kumar , Bhattacharya Anish , Singh Gurpreet
Published: April 2019

Malignant melanoma is a highly aggressive tumor and surgical resection is the primary treatment. However, the chances of recurrence are quite high despite complete resection. The aim of study was to evaluate the 18F-fluorodeoxyglucose(18F-FDG) positron emission tomography–computed tomography (PET/CT) in detection of recurrent melanoma after curative surgery and its prognostic value. Fifty-four melanoma patients (32 women) with prior primary lesion resection were evaluated with 18F-FDG PET/CT for clinically suspicious recurrent disease. The diagnostic accuracy of 18F-FDG PET/CT (visual interpretation as well as semi-quantitative parameter) was determined on the basis of subsequent imaging and clinical follow-up. Melanoma-specific survival and risk of progression (hazard ratio [HR]) were assessed using Kaplan–Meier method and Cox regression analysis.18F-FDG PET/CT detected recurrent diseases in 36 (66%) patients including distant metastases in 13 patients and second synchronous malignancy in 2 patients. Overall, the sensitivity, specificity, positive predictive value, and negative predictive value of 18F-FDG PET/CT were 91.2%, 80.0%, 88.6%, and 84.2%, respectively, with area under the curve of 0.86 (95% confidence interval: 0.74–0.97; P < 0.05). Positive 18F-FDG PET/CT study was associated with a significantly shorter overall survival than negative study (30.8 ± 4.6 vs. 64.5 ± 6.9 months, P < 0.05). Apart from positive 18F-FDG PET/CT scan, maximum standardized uptake value (SUVmax) >2.7 and combination of both were independently associated with an increased risk of disease progression (HR = 7.72, 21.58, and 11.37, respectively; P < 0.05).18F-FDG PET/CT showed enhanced diagnostic performance in patients with suspicious recurrent malignant melanoma leading to appropriate management. FDG positivity along with SUVmax >2.7 provides important prognostic value in predicting the survival outcomes and assessing the risk of disease progression.
Prostate-specific antigen and risk of bone metastases in west Africans with prostate cancer
Authors: Amoako Yaw Ampem , Hammond Emmanuel Nii Boye , Assasie-Gyimah Awo , Laryea Dennis Odai , Ankrah Alfred , Amoah George
Published: April 2019

We aimed to assess the relationship between bone scintigraphy findings and prostate-specific antigen (PSA) and Gleason score in a group of treatment naïve West Africans with prostate cancer. The age, PSA, and Gleason scores of 363 patients with prostate cancer were collected. Patients were risk stratified using the D'Amico criteria. Logistic regression was performed to assess the relationship between bone scan results and PSA and Gleason score. Receiver operating characteristics (ROC) analysis was used to determine the diagnostic reliability of the bone scan findings. Ninety of the 96 patients with metastases had high risk, and only 6 had low-to-intermediate risk disease (P = 0.0001). PSA (odds ratio [OR] 2.4 [95% confidence interval [CI] 1.5–3.8], P = 0.001) and GS (OR 2.2 [95% CI 1.5–3.1], P = 0.001) were independently predictive of the presence of metastases. ROC analysis revealed that PSA predicted the presence of metastases with an area under the curve of 0.72, and using a cut-off value of ≥20 predicted metastases with a sensitivity of 86.5% and specificity of 41.2%. A Gleason score of ≥7 had an 89.6% sensitivity and 34.8% specificity for bone metastases. Using a Gleason cutoff of ≥8, the sensitivity and specificity for predicting bone metastases were 54.2% and 71.5%, respectively. The area under the Gleason score ROC curve was 0.68. PSA and Gleason score are independent predictors of the presence of bone metastases in West Africans with prostate cancer.
18F-fluorodeoxyglucose positron emission tomography/computed tomography in extensive bland portal vein thrombosis from retroperitoneal adenocarcinoma
Authors: Chausse Guillaume , Abikhzer Gad , Probst Stephan , Laufer Jerome
Published: April 2019

A 73-year-old woman undergoing hormone therapy for previously treated localized breast cancer presented at oncology follow-up 4 years after mastectomy/radiation therapy with weight loss, night sweats, and abdominal pain. Contrast computed tomography (CT) abdomen revealed a soft-tissue mass posterior to the pancreas, several enlarged retroperitoneal lymph nodes, and a dilated portal vein. On 18F-fluorodeoxyglucose positron emission tomography/CT, metabolic activity extended along the portal vein, outlining most of the liver venous system. This “tree-like” appearance was diagnostic of recent portal vein thrombosis by vascular compression from the retroperitoneal mass. Biopsy of the mass later confirmed undifferentiated adenocarcinoma without breast cancer marker expression.
Análisis geométrico del Moulin à café de Marcel duchamp
Authors: Franco Taboada Manuel
Published: April 2019

El presente artículo estudia el aparato geométrico de la obra de Marcel Duchamp (1887-1968), Moulin à café o Molinillo de Café, también conocido por La Amoladora o su denominación inglesa, The Coffee Grinder, de 1911. Esta obra, (considerada seminal por el propio Duchamp), será fundamental para el desarrollo de la La Mariée de 1912 y de La Marièe mise à nu par ses cèlibataires meme, 1915-1923, (La novia puesta al desnudo por sus solteros, incluso), también conocida como Le Grand Vérre, El Gran Vidrio, o The Large Glass. Para la elaboración de este estudio ha sido fundamental la publicación De ou par Marcel Duchamp par Ulf Linde. (Aman y Birnbaum, 2013). Para poder contextualizar este estudio, en su tiempo, en las artes y la arquitectura, recomiendo leer mi anterior trabajo sobre la cuestión, titulado, Crítica del análisis geométrico realizado por Ulf Linde acerca de la obra de Marcel Duchamp. (Franco, 2017) 1, del cual, éste es continuación.
Alejandro de la Sota. Pensar la arquitectura, dibujar el pensamiento
Authors: Amado Lorenzo Antonio
Published: April 2019

El arquitecto gallego Alejandro de la Sota (1913-1996) fue uno de los más significativos de la arquitectura española del siglo xx. Con el paso del tiempo se convirtió en un arquitecto “de culto”, entendiendo esto como el reconocimiento unánime a su independencia y experimentación constantes, sin seguir modas ni corrientes mayoritarias. Se proponen aquí una serie de consideraciones generales sobre su obra, apoyadas en dibujos representativos, analizando cómo sus planteamientos personales sobre arquitectura, dibujo y vida fueron coherentes con la evolución gráfica de sus dibujos. A pesar de que para Sota, éstos no son mucho más que una herramienta para desarrollar el proyecto, para comunicar su pensamiento sin pretensiones “artísticas”, sus dibujos, en su progresiva y atractiva simplificación, terminaron por transmitir, como su arquitectura, rasgos inconfundibles de su identidad, derivando desde una prosa inicial a la poesía gráfica.
GD en GD (Gramática Digital en Geometría Descriptiva)
Authors: González Uriel Ana , García Ríos Ismael , Gómez Sánchez Mª Isabel
Published: April 2019

Actualmente, en el área EGA está extensamente asentada la integración de programas informáticos de dibujo en la docencia de Geometría Descriptiva, o Geometría y Dibujo. En este contexto, se plantea la introducción de aplicaciones de programación visual que permiten incidir en los procesos de generación y trazado de curvas y superficies y en las relaciones entre elementos geométricos. Se exploran las posibilidades que brindan estas aplicaciones respecto a los contenidos propios del currículo de la materia. Se ofrece una serie de ejemplos que los autores han desarrollado, y se reflexiona sobre los problemas y ventajas encontrados tras analizar los resultados de su inclusión en un curso ordinario. 
Jordi Brunet Forasté. Maquetas para ordenar el turismo de masas
Authors: Carcelén González Ricardo
Published: April 2019

El texto, resultado de una serie de entrevistas, revisa la desconocida obra de Jordi Brunet Forasté (1926-2014), maquetista que en la segunda mitad del siglo xx colaboró con algunas de las figuras más importantes del panorama arquitectónico español –Coderch, Sert, Bonet, Cano Lasso, Perpiñá, Bohigas, Moreno-Barberá, entre otros–, quienes confiarían en él para la elaboración de los modelos de algunos de sus grandes proyectos. El texto analiza, en primer lugar, la evolución de su taller de maquetas en el tiempo; a continuación, se hace un breve repaso a sus principales trabajos, desde su etapa como restaurador de modelos de Gaudí en los talleres de la Sagrada Familia, hasta las maquetas realizadas para aquellos arquitectos de renombre. Finalmente, el trabajo destaca los modelos para la ordenación del turismo masivo de sol y playa que Brunet ejecutaría en los inicios de la década de los 60, en pleno periodo de desarrollismo español.
Gemelle diverse. Las iglesias de la Santísima Trinidad de Delia y de San Nicolò Regale en Trápani, Sicilia
Authors: Cicala Federica , García Baño Ricardo
Published: April 2019

El trabajo desarrolla las fases necesarias previas a un proyecto de restauración. Sus principales objetivos son: el estudio y análisis histórico-arquitectónico, el conocimiento de la actual gestión y valorización de los edificios, la propuesta de estrategias para mostrar el valor de los restos del pasado y para educar a las nuevas generaciones y el desarrollo de un método. Complementariamente a la toma de datos “in situ” relativa a las condiciones actuales de los elementos, de su estado de conservación y a la documentación de las patologías existentes, se ha realizado un levantamiento arquitectónico, para realizar el análisis comparativo de ambas iglesias y las propuestas de actuación. Las dos arquitecturas son el resultado del mismo período histórico, de la misma matriz cultural, han sido proyectadas para la misma función y tienen los mismos elementos estilísticos, y aunque ahora son muy diferentes, originalmente eran “gemelas”.
Judicialização da política ou “politização suprema”? O STF, o poder de barganha e o jogo político encoberto pelo constitucionalismo
Authors: Lunardi Fabrício Castagna
Published: April 2019

O presente artigo tem o objetivo de mostrar como a judicialização da política levou à politização do Supremo Tribunal Federal, bem como analisar os seus riscos e as suas implicações para a seara política. Nesse tocante, busca-se investigar como ocorre efetivamente a atuação da Corte Constitucional brasileira na arena política, como a revisão judicial pode maximizar o poder de barganha política de diversos players e como o STF pode se tornar um importante veto player. Para atingir os seus escopos, a pesquisa se desenvolve com base na opção de uma linha crítico-metodológica e com amparo nas teorias políticas e de direito constitucional comparado, que, para além de questões normativas, analisam os problemas do ponto de vista político-institucional e comportamental, considerando-se a atuação dos diversos players e qual tem sido o papel assumido pela Corte Constitucional brasileira. Ao final, conclui-se que há incentivos irresistíveis para que o governo e as elites políticas intervenham no poder judicial, bem como que é preciso se atentar para os riscos da judicialização da política, a fim de que não se torne simples politização da justiça e o Judiciário não seja transformado em apenas mais uma arena política.
Escala de Afrontamiento al Cáncer en pacientes oncológicos en población mexicana
Authors: Galindo Vázquez Oscar
Published: April 2019

Introducción: Los estilos de afrontamiento son variables psicológicas que pueden predecir la adaptación psicológica y en sentido contrario una mayor disfunción psicosocial en pacientes con cáncer. Se han descrito dos dimensiones: centrados en el problema o activos positivos, caracterizados por la búsqueda de información, planificación y resolución de problemas; y los dirigidos a la emoción o evitativos caracterizados por el escape, distanciamiento o desesperanza. Objetivo: Determinar las propiedades psicométricas de la Escala de Afrontamiento del Cáncer en una muestra de pacientes con cáncer de la población mexicana. Método: Participaron 317 pacientes del Instituto Nacional del Cáncer, de los cuales 148 eran mujeres (46,7%) y 169 hombres (53,4%), con una edad media de 46,2 años. Los participantes completaron al mismo tiempo el Mental Adjustment to Cancer (MAC), el HADS y el Termometro del Distress. Resultados: Mediante el análisis factorial se identificaron cinco factores que explicaron el 53,32% de la varianza, con 22 reactivos. La consistencia interna de la escala global fue satisfactoria (0,81). La validez concurrente mostró asociaciones significativas (Pearson r = - 0,120 – 0,586, p <0,05). Discusión y conclusión: La Escala de Afrontamiento del Cáncer derivada del Mental Adjustment to Cancer tiene propiedades psicométricas adecuadas. Es una herramienta útil para fines de investigación y atención en salud mental durante el tratamiento oncológico.
Validación de la versión castellana del Inventario de Fatalismo de Powe en población mexicana con cáncer
Authors: Castillo-López Rosa Lilia , Lagunes-Córdoba Roberto , Galindo Vázquez Oscar , Landa-Ramírez Edgar , Marván-Garduño María Luisa
Published: April 2019

Objetivo: validar la versión en español del Inventario de Fatalismo de Powe (SPFI) en población mexicana con cáncer. Método: Se aplicó el SPFI a 133 mujeres con cáncer de mama. Se realizó un análisis factorial con rotación Oblimin. Posteriormente se evaluó la consistencia interna con el coeficiente Alfa de Cronbach y por último se realizaron análisis de correlación entre los factores del cuestionario. El instrumento resultante se nombró Inventario de Fatalismo de Powe en Español-Cáncer (IFPE-C).Resultados: Se eliminaron siete de los 15 reactivos originales y se conservaron ocho, todos ellos con cargas factoriales superiores a 0,40. Se obtuvo una estructura de tres factores que explicaron el 73,7% de la varianza y se llamaron: Inutilidad del tratamiento con un α=0,85, Predestinación con un α=0,918 y Pensamientos de muerte con un α=0,73. La consistencia interna para la escala global fue de α =0,80. Se obtuvieron correlaciones estadísticamente significativas entre los factores. Conclusión: el IFPE-C demostró ser un instrumento valido y confiable, que puede ser utilizado tanto en entornos clínicos como de investigación para identificar las creencias fatalistas acerca del cáncer de los pacientes.
Use of Satellite Imagery for Pastoral Resources Monitoring in Kossi Province (Burkina Faso)
Authors: Yssouf Sieza , Alain Gomgnimbou P. K , Adama Belem , Idriss Serme
Published: April 2019

In Burkina Faso, livestock sector has an important place in the country's economy. Essentially extensive, this livestock farming is characterized by transhumance system, which consists of leading livestock sometimes over long distances in search of good pastures and water.Satellite images from different periods can be used to monitor the evolution of pastoral resources (pasture areas and surface water points) in a given area. Field data, coupled with satellite images, provide a better understanding of livestock transhumance movements in the study area. The objective of this study was to monitor the spatial and temporal evolution of pastoral resources using remote sensing tools in Kossi province. Field data, coupled with satellite images, provide a better understanding of livestock transhumance movements in the study area.
El coeficiente beta (β) como medida del riesgo sistemático: Una demostración de que el valor del riesgo sistemático del mercado es igual a uno
Authors: Brenes González Humberto Antonio
Published: April 2019

El coeficiente beta, es una medida del riesgo sistemático o no diversificable que afecta al conjunto de empresas de un mercado, es por ello, que su estimación es importante a la hora de realizar inversiones, puesto que dicho riesgo, debe ser asumido por los inversionistas. El objetivo del presente trabajo, es demostrar que el riesgo sistemático del mercado tiene un valor igual a uno, esto a partir de distintas técnicas tales como: cálculo del coeficiente beta a través de una regresión lineal, por medio del análisis de varianzas y covarianzas y por medio de gráficos y cálculo de la pendiente a través del programa Microsoft Excel.  Para realizar la demostración, se utilizó las cotizaciones del índice de mercado Standar & Poor´s 500, durante el período del 1 de septiembre de 2013 al 1 de septiembre de 2018. El valor del coeficiente beta por medio de las técnicas utilizadas, dio como resultado un valor igual a uno, quedando así demostrado que el beta del mercado tiene un valor igual a uno.
Utilization and Real-world Effectiveness of Tranexamic Use in Shoulder Arthroplasty: A Population-based Study
Authors: Anthony Shawn G. , Patterson Diana C. , Cagle Paul J. , Poeran Jashvant , Zubizarreta Nicole , Mazumdar Madhu , Galatz Leesa M.
Published: April 2019

Introduction:

Tranexamic acid (TXA) is increasingly used to reduce blood loss in lower extremity arthroplasty, but limited data exist for its effectiveness in patients undergoing shoulder arthroplasty. We aimed to use national data to assess the frequency of use and effectiveness of TXA in patients undergoing shoulder arthroplasty.

Methods:

Using national claims data from patients undergoing shoulder arthroplasty (Premier Healthcare; 2010 to 2016; n = 82,512; 429 hospitals), we categorized patients according to whether they received perioperative TXA. Multilevel multivariable regression models measured associations between TXA and blood transfusion risk, combined complications (including thromboembolic events, acute renal failure, cerebral infarction, and acute myocardial infarction), and length and cost of hospitalization. Odds ratios (ORs) and 95% confidence intervals (CIs) are reported.

Results:

Overall, TXA was used in 12.8% (n = 10,582) of patients with a strong increasing trend. After adjustment for relevant covariates, TXA use (compared with no TXA use) was associated with a 36% decrease in transfusion risk (OR, 0.64; 95% CI, 0.52 to 0.77; P < 0.05) and a 35% decreased risk for combined complications (OR, 0.65; 95% CI, 0.50 to 0.83; P < 0.05). Moreover, TXA use was associated with 6.2% shorter hospital stay (95% CI, −8.0% to −4.4%; P < 0.05), whereas no difference was observed with the cost of hospitalization.

Conclusion:

In this first large-scale study assessing TXA use and effectiveness in patients undergoing shoulder arthroplasty, we found that although TXA utilization is still low, it is associated with a marked decrease in transfusion risk with no increases in complication risk. Effects on the length and cost of hospitalization appeared minor. Future studies should assess whether higher volumes of TXA utilization would translate into more gains on the length and cost of hospitalization.

Level of Evidence:

Level III
Synthesis, Characterization, Thermogravimetric and Antioxidant Studies of New Cu(II), Fe(II), Mn(II), Cu(II), Zn(II), Co(II) and Ni(II) Complexes with Benzoic Acid and 4,4,4-Trifluoro-1-(2-naphthyl)-1,3-butanedione
Authors: Fabiyi Festus Sunday , Olanrewaju Adesoji Alani
Published: April 2019

Six new Mn(II), Fe(II), Co(II), Ni (II), Cu(II) and Zn(II) complexes with benzoic acid (L) and 4,4,4-trifluoro-1-(2-naphthyl)-1,3-butanedione (L1), of the molecular formulae [MnLL1]·H2O (1), [FeLL1]·H2O (2), [CoLL1] (3), [NiLL1]·H2O (4), [CuLL1] (5) and [ZnLL1] (6), respectively, have been synthesized. The molecular structures of the complexes were determined by spectrophotometric studies using ir, 1H and 13C nmr, es and mass spectrophotometry revealed that the geometries of the complexes 1, 2, 3, and 6 are tetrahedral, while 4 and 5 have square planar geometry. These geometries were supported by their magnetic moments data. The coordination of the ligands to the metal ion are through their oxygen atoms. TGA studies showed that they are thermally stable. Their antioxidant studies revealed that they are good antioxidants.
Predictive Analysis of Fiscal Crises with Deep Learning Time Series Model
Authors: Matt Zhou Ming , Cang Wang Man
Published: April 2019

Fiscal crisis can cause serious damage to the economy. Remarkably, there is limited study about when and how it occurs. With the social and economic data of more than 180 countries from 1970 to 2015, this paper constructs a fiscal crisis risk index system to explore the relationships between the crises and the indicators such as GDP growth rate, inflation rate, FDI, and foreign debt interests. Predictive analysis is performed based on the time series model of deep neural network to shed some light on policies and economic dynamics around the crises. We find that besides the inflation, fiscal crises in advanced economies are closely related to the net outflows of FDI and GDP p.c. while in developing countries the GDP growth rate and the net inflows of FDI are the key factors. Low-income developing countries are the heavy-hit targets with the net inflows of FDI, debt structure and interests as main contributors.
Current indications for cochlear implantation in adults and children
Authors: Szyfter Witold , Karlik Michał , Sekula Alicja , Harris Simon , Gawęcki Wojciech
Published: April 2019

Introduction: Surgical treatment of deafness by cochlear implants is used for more than 40 years, and during this period permanently, gradual and significant expansion of indications for this surgery has been observed.
Material and methods: In our Department in the years 1994-2018 1480 cochlear implantations were performed, both in adults (647) and in children (883). In this study current indications and the rules for eligibility of patients based on 25 years of experience are presented.
Results: Indications for cochlear implantation in adults are: 1) bilateral postlingual deafness, 2) bilateral sensorineural hearing loss - in pure tone audiometry > 70 dB HL (average 500-4000 Hz) and in speech audiometry in hearing aids understanding < 50% of words for the intensity of the stimulus 65 dB, in the absence of the benefits of hearing aids, 3) bilateral profound hearing loss for high frequency with good hearing for low frequency, in the absence of the benefits of hearing aids, 4) some cases of asymmetric hearing loss with intensive tinnitus in the deaf ear. An indication in children is bilateral sensorineural hearing loss > 80dB HL confirmed by hearing tests, after about 6 months of rehabilitation with the use of hearing aids.
Discussion: Although cochlear implantation is used for more than 40 years, the indications for this treatment underlies constant modifications. They concern the age of eligible patients, implantation in patients with partially preserved hearing, as well as treatment for patients with difficult anatomical conditions. In many countries, bilateral implantations are commonly performed, and more and more centers recommend this treatment in the case of unilateral deafness or asymmetric hearing loss, especially with the accompanying tinnitus in the deaf ear.
INVESTMENT RISK MANAGEMENT ON THE MULTI-SCALE CHAIN MARKET
Authors: Stanisławski Dariusz
Published: April 2019

The main goal of the article is to show the specificity of investment risk management in the multi-apartment tenement market. The study was divided into the theoretical and empirical part. The theoretical discussion characterizes risk management. The empirical part is the study of the expected rate of return carried out on the basis of Częstochowa multi-dwelling tenements. Investing in real estate is associated with high risk, therefore the investor expects a higher rate of return than on a safer market, eg deposits or bonds. The risk was, is and will be an inherent part of the business related to investing in the real estate market. The basis for risk management is to achieve in the cost sense the process of using risk management by effectively diagnosing the steps taken. Defining risk management is designed to predict potential problems. The collected data made it possible to assess the importance of risk management in investing in the multi-apartment tenement market in Częstochowa. Risk management is applicable in all cells also in investment in apartment buildings and it brings tangible benefits for property owners.
News from the Field
Authors: Free David
Published: April 2019

UCSD signs OA2020 Expression of InterestOU Libraries creates AI research registryOCLC partners with Couperin.org on Eproxy analytics2019 ALA Midwinter Meeting recordings availableNISO launches content platform migration communication projectARL Annual Salary Survey 2017–2018 releasedKeeping Up With… Implicit BiasCNN Films added to Academic Video OnlineProject MUSE offers HTML5 open access books on redesigned platform
La rosa real: Una introducción a los números reales
Authors: Delgado Pineda Miguel
Published: April 2019

En este trabajo se presenta una forma de presentar los números reales entre cero y uno de manera que facilita la adquisición del concepto de notación decimal tanto de números racionales como de números irracionales. En este trabajo se presenta una notación decimal binaria única para cada uno de estos números. Así se le facilita al estudiante la comprensión de las reglas aritméticas de números reales.La presentación de la notación decimal binaria se deriva desde una interpretación geométrica inicial en relación a la medida de longitudes de segmentos, a la medida de áreas de rectángulos y a la medida de arcos o sectores de una circunferencia y círculo.La razón primaria que nos movió ha realizar esta aportación didáctica se debe a que las tres formas usuales de introducir al conjunto de los números reales; utilizando cortaduras, mediante clases de equivalencia de sucesiones de números racionales y abordando la axiomática de la recta real, conlleva una seria dificultad didáctica para cualquier estudiante no universitario, como para los estudiantes de los primeros cursos universitarios para que estos comprendan la naturaleza del número real, la forma de notación decimal y las definiciones de la operaciones con estos números. A esta dificultad se le añade que el Calculo Matemático o Análisis Matemático que se imparte en esos primeros curso se fundamenta en el conjunto de números reales principalmente.
Variables tangibles e intangibles sobre productos y servicios: la creacción de itness application ‘punnett square’ (faps)
Authors: Addolorato S.
Published: April 2019

La industria fitness y salud (H&F) siempre marcó más las variables tangibles de los productos antes de las intangibles. Hoy en día, en los modelos de negocios que funcionan, se ha demostrado como estas resultan increíblemente útiles. La aplicabilidad y usabilidad de recursos fitness (productos, servicios o soluciones mixtas) se planean sobre el innovador enfoque que define estas calidades más escondidas. Esta revisión de la literatura académica tiene el reto de evidenciar este ‘lado B’. La introducción de la herramienta nombrada Fitness Applications ‘Punnett Square’ (FAPS) ayudará a entender de forma mejor los recursos del sector fitness que siguen en continuo desarrollo. También, resultará aplicable a todos los profesionales del sector que utilizan equipos (físicos o menos) en su día a día en instalaciones deportivas. Bien para todo lo que ya está en posesión para aumentar los niveles de valoracción, tanto como para todas las elicciones frente a acciones futuras.

Health and fitness (H&F) industry has always highlighted product’s tangible variables over untouchable ones. Nowadays conspicuous market models are proving that these facets are increasingly required by international societies and contexts and are demonstrated to be incredibly useful. The applicability and usability of fitness resources (products, services or mixed solutions) depends upon a genuinely innovative approach to the definition of those hidden intangible variables. This literature analysis underline that also academic contributions focus more attention on ‘touchable’ variables, but it’s now the time for the ‘B side’. The introduced Fitness Applications ‘Punnett Square’ (FAPS) tool helps to better understand the ever-growing world of fitness industry resources. It is also direct applicable to all those sector professionals who operate in their daily-life facility routine, with the final goal to increase levels of assessment of H&F product and service knowledge, for what already own and for emergent choices or purchasing actions.
El efecto de la ansiedad en el tiempo de reacción de los estudiantes de Educación Física de la Universidad de Tabriz, Irán
Authors: Delir A. , Garehbagh M.
Published: April 2019

El objetivo del presente estudio es investigar el efecto de la ansiedad y el tiempo de reacción en estudiantes de la Universidad de Tabriz. Participaron 48 estudiantes (24 mujeres y 24 hombres) de Educación Física de la Universidad de Tabriz. Los estudiantes fueron evaluados mediante el cuestionario de escala de Spielberger y la prueba del tiempo de reacción para determinar el nivel de ansiedad. El muestreo se realizó de manera aleatoria en estudiantes de Educación Física de la Universidad de Tabriz, con una edad de 22 ± 3 años. Después de comprobar la normalidad de los datos, a través del análisis de varianza, se analizaron dos factores (ansiedad y tiempo de reacción) en cada grupo para cada una de las variables individualmente. Los resultados indicaron que hubo una relación negativa entre la ansiedad-estado y el tiempo de reacción de las manos (r = 0.112, p = 0.398) y entre la ansiedad-rasgo y el tiempo de reacción simple de los pies (r = 0.209, p = 0.154). Además, hubo una relación positiva entre la ansiedad-estado y el tiempo de reacción simple de los pies (p = 0.0625, r = -0.072) y entre la ansiedad-rasgo y el tiempo de reacción de las manos (p = 0.874, r = -0.024). Los resultados de este estudio respaldan la hipótesis de la U invertida.

The objective of the present study is to investigate the effect of anxiety and reaction time in students of the University of Tabriz. 24 female and 24 male physical education students of Tabriz University responded to the Spielberger Scale Questionnaire and the Reaction Time Test to determine the level of anxiety. Sampling was conducted randomly from physical education students of Tabriz University with the age 22 ± 3. After ensuring that the data were normal, through the variance analysis, two in-group factors of anxiety and reaction time were analyzed for each of the variables individually. The results indicated that there was a negative relationship between state anxiety and choice reaction time of hands (r = 0.112, p = 0.398) and between trait anxiety and simple reaction time of feet (r = 0.209, p = 0.154). In addition, there was a positive relationship between state anxiety and simple reaction time of feet (p = 0.0625, r = -0.072) and between trait anxiety and choice reaction time of hands (p = 0.874, r = -0.024). The results of this study support the Inverted U hypothesis.
BROMINATION OF AROMATIC AMINES
Authors: Mustafayeva Fatima A. , Kakhramanov Najaf T.
Published: April 2019

It is known that the antipyrenes, biological active substances (antitumor, antibacterial, antifungal, antiviral), pharmacological preparations on the basis of bromine-containing aromatic compounds are widely used in the industry. Considering this and increased demand for these substances the purpose of this work was to summarize and systematize the accumulated knowledge in this area. The article presents methods and reagent systems used in the bromination of aromatic amines. There have been described the bromination of aromatic amines with hydrogen bromide, sodium bromide, potassium bromide, ammonium bromide, copper (II) bromide, N-bromosuccinimide, N-bromosaccharin, polymer-supported halogenation agents, and difference of these methods from the point of view of the used oxidizer, the medium and the solvent, the catalyst, the regioselectivity, the quantity of bromine atoms in the obtained product. The influence of solvents, catalysts, the nature (electron-donor or electron-acceptor) and position (ortho-, meta-, para-) of the substituents in the aromatic ring, reaction conditions, molar ratio of the reagents, reaction temperature and carrying out time of bromination reaction of aromatic amines has been shown. The bromination reactions courses of aromatic amines in different solvents, in solvent free conditions, in solid states has been described. The bromination of aromatic amines under thermal, microwave, ultraviolet radiation conditions has been studied. In the paper the regioselective monobromination and also obtaining of di-, tri- bromo derivatives of aromatic amines has been shown. Taking into account today's priority to environmentally safe methods of bromination of aromatic amines they have been also mentioned. Given the above, in our opinion, the information presented in this article will help to optimize the production of bromo derivatives of aromatic amines used in industry, technics and technology.
KINETICS OF ELECTRODEPOSITION OF ZINC-NICKEL ALLOY FROM SULFATE-GLYCINATE ELECTROLYTE
Authors: Chentsova Elena V. , Pochkina Svetlana Yu. , Solovyova Nina D. , Lopukhova Marina I.
Published: April 2019

Kinetics of electrodeposition of a zinc-nickel alloy from the acid sulfate-glycinate electrolyte and the properties of the formed coating have been studied depending on the composition of the electrolyte and the deposition mode. Chronoamperometric studies of the electrodeposition of the zinc-nickel alloy made it possible to establish that at polarization potentials of -1.00 -1.05 V relative to the CSE, processes on the electrode proceed with diffusion control. Changing the potentials to the region of more negative values leads to kinetic difficulties. The formation of the zinc-nickel alloy from the sulphate-glycinate electrolyte is affected by the concentration of the nickel salt. The process polarization, crystallization overvoltage, the amount of nickel in the alloy depends on its content in the solution. The maximum crystallization overvoltage corresponds to the NiSO4 content in the electrolyte in the amount of 0.12-0.14 mol/l. Large partial densities of the electroreduction current of nickel during the formation of the Zn-Ni alloy correspond to the same range of concentrations. It was found that with the content of nickel sulphate more than 0.16 mol / l, the amount of nickel in the precipitate decreases. During electrodeposition of the alloy, the pH of the near-electrode layer increases as a result of hydrogen evolution. It is assumed that with the cathode current density of more than 10 mA/cm2, the formation of the zinc-nickel alloy occurs with the participation of neutral and electronegative complexes. Determination of the protective ability of samples in a 3 % NaCl solution using both chronovoltamperometry and impedance spectroscopy showed that samples with a nickel content of 14.4 % obtained in the solution with a nickel sulfate concentration of 0.12-0.14 mol/l are characterized by maximum corrosion resistance.
SELECTIVE DETERMINATION OF CARBON MONOXIDE BY SINGLE METAL OXIDE SENSOR
Authors: Chegereva Kristina L. , Shaposhnik Alexey V. , Zvyagin Alexey A. , Moskalev Pavel V.
Published: April 2019

Semiconductor sensors are often used to solve an important practical problem – the determination of the concentration of carbon monoxide in the air. Their disadvantage is the low selectivity, which can lead to false alarm when other reducing gases such as ammonia or ethanol vapor appear in the air. To increase the selectivity, we used pulsed temperature modulation in combination with a special composition of the gas sensitive layer of the sensor. The use of pulse temperature modulation has revealed the features of the analyte associated with the sorption kinetics at the surface of the sensor, with the kinetics of the chemical interaction between reductant analytes and chemisorbed oxygen, and the kinetics of desorption of chemical interaction products. However, information on the qualitative composition of the medium is contained in the experimental data in an implicit form, because the qualitative analysis procedure with the use of low selectivity sensors has so far remained undeveloped. In this paper, we proposed a qualitative analysis method based on the power-law regression model that relates the concentration of analyte gas to the electrical resistance of the sensor at various times during the measurement cycle. The experimental procedure shown in our work leads to an increase in the sensitivity of the quantitative analysis by one or two orders of magnitude depending on the concentration of carbon monoxide.
SIMULATION OF VANADIUM OXIDE STRUCTURE ON ANATASE SURFACE BY DENSITY FUNCTIONAL THEORY
Authors: Golosnaya Maria N. , Nikitina Nadezhda A. , Pichugina Daria A. , Kuz’menko Nikolay E. , Kaichev Vasily V.
Published: April 2019

The article is devoted to results of systematic study of the structure transformation of V2O5 supported on TiO2 (anatase). The effect of (001) TiO2-anatase on the structural properties and morphology of V2O5 was analyzed using the spin-polarized density functional theory (DFT) in the periodic approach. The calculations were performed using the VASP code with PBE energy functional and plane wave basis set. The catalyst is represented as a periodic surface. The supercell includes four Ti – O layers and the top V2O5 layer. A lot of different forms of V2O5 (monomeric and polymeric structures, individual crystallites) on the TiO2 surface were considered. According to the calculations of the adsorption energy, vanadium oxide on the oxide composite surface can form various forms. The monomeric form is the most stable. Calculated value of adsorption energy is -1.16 eV. The ionic interaction causes a significant change in the interatomic distances between the vanadium atom and the oxygen atom from the support d (V – O (Ti)) for all active forms. The highest value d (V – O (Ti)) was found for catalyst with the polymeric active form. It suggests that the binding of the form with the anatas is the smallest. Theoretical studies have shown that the V2O5/TiO2 system is dynamic and can change the surface structure under the different conditions.
INFLUENCE OF FARMING SYSTEMS ON INDICATORS OF BEEF CALVES GROWTH
Authors: Ducháček J. , Toušová R. , Stádník L. , Biniová Z. , Ptáček M. , Touš J. , Doležalová M. , Maran B.
Published: April 2019

The aim of this study was to evaluate growth ability of Charolais calves in different systems of farming. The observations were performed in period of 8 years (2007 - 2014) in one herd, which was transiting from conventional to ecological farming system. Period from 2007 to 2010 was of conventional character, 2010 to 2012 transition phase, and from 2012 to 2014 ecological phase. This transfer is directly linked to changes in cow´s welfare and nutrition. Growth ability (live weight at birth, 120, and 210 days of age, average daily gain from birth to 120, from birth to 210, and from 120 to 210 days of age) of 518 Charolais calves was measured. Statistical analyses were performed using SAS 9.3 software, GLM procedure. The model equations contend effect of sex, number of parity, month of calves birth and type of farming system. Difference in birth weight of calves between farming systems was small and insignificant. This fact may be due to breeding system focused on easy calving. Increase of values measured in different age and average daily gains were statistical significant (P < 0.05) between conventional and ecological farming. The increase of parameters of weight and average daily gain could be largely connected with genetic progress in Charolais population in Czech Republic and following good selection of bulls to insemination and natural breeding. Nevertheless, the transition from conventional to ecological farming system did not affected growth ability of beef cattle negatively and, in contrary, results of growth improved farm economy.
MICROCLIMATE PARAMETERS AND VENTILATION INSIDE THE BARNS IN THE LOWLAND REGION OF BOSNIA AND HERZEGOVINA
Authors: Jovović V. , Pandurević T. , Važić B. , Erbez M.
Published: April 2019

Purpose of this paper is analysis of microclimate parameters in dairy cow barns in Bosnia and Herzegovina (Republic of Srpska), and examine the impact of the ventilation on the microclimate inside the barns. The study included 38 dairy barns in the lowland region of Bosnia and Herzegovina (Republic of Srpska), during the winter season. The following microclimate parameters were measured: air temperature, relative humidity of air, air velocity and concentration of gases (NH3 and CO2). Statistically significant correlations were determined between NH₃ concentration and air temperature (P<0,001) and between temperature and concentration of CO₂ (P<0,05). Also, are established positive and statistical significant correlation between manure gases (NH₃ and CO₂). The research has also shown that the average concentration of CO₂ in relation to the open area in the barn statistically significant (P<0,05).
Quality of family life in the north of Kosovo and Metohija
Authors: Milivojević Snežana
Published: April 2019

This paper provides an analysis of family and everyday life of twonuclear Serbian families living in the territory of the municipalityof Severna Kosovska Mitrovica. The families in question belong tothe working class and low-middle class respectively, the former beingurban, the latter rural. The paper aims at viewing, by means ofthe method of qualitative analysis – case study and problem-centredinterview, mutual interdependence between the quality offamily relations, living space standard, and the overall quality oflife in the area concerned.
About negative globalisation – Zygmunt Bauman
Authors: Kovačević Braco
Published: April 2019

The value theoretical relation to globalisation is diametrically opposite- positive or negative. Neoliberal globalisation apologists seek tohighlight its positive characteristics, while its critics point to a wholeseries of negative characteristics. This other theoretical orientationbelongs to Zygmunt Bauman. His attitude towards globalisation ishighly negative: in itself, globalisation carries a number of negativerisks, of which the most difficult is the one that leads to the possibleself-destruction of humanity. Therefore, he decisively stated that if wedo not develop the perception of planetary responsibility and the abilityto foresee the future, cataclysm is quite certain and real.
Consumer identity of modern man
Authors: Čeko Mirjana
Published: April 2019

This paper focuses on the analysis of contemporary society as aconsumer society. Given the increasingly visible development ofconsumer culture and the expansion of consumerism, we considerit important to point to the influence on the formation of a consumeridentity as the dominant identity of modern man. Bearingin mind the comprehensiveness and complexity of the concept ofidentity, we have found it important to point out the theoreticalexplanations of the concept of identity, its characteristics, its elementsand dimensions, and in particular the views on a consumeridentity by many authors who have dealt with this theme. Thispaper aims at the need for a better understanding of the contemporaryconsumer identity, and points to the consequences that theformation of a consumer identity leaves humanity.
Нови трендови миграција становништва у савременом друштву
Authors: Вилић Драгана
Published: April 2019

Просторно кретање становништва није нова појава - било јеприсутно кроз историју у својим различитим видовима, оби-му и интензитету. Ипак, с процесима глобализације оно јеизражено, добија нову форму и друштвене карактеристике(нарочито, економске миграције). Међутим, многе пријетњеи проблеми који се испољавају на глобалном нивоу јесу, јошувијек, главни узроци легалних и/или илегалних, добровољнихи присилних миграција (сиромаштво, незапосленост, грађан-ски ратови, прогони, климатске промјене и сл.). Дугорочнипривредни и демографски проблеми у развијеним земљамаимају негативне посљедице - смањивање контигента радноспособног становништва, доводе у питање одрживост систе-ма социјалне заштите и осигурање одрживог привредног растаи развоја друштва уопште. Стога се уочава значај миграцијаза отклањање ових негативних посљедица. Како би се суочилиса проблемима који узрокују миграције, са изазовима и посље-дицама миграција, са проблемима са којима се суочавају ми-гранти, те остварила контрола и управљање миграцијскимтоковима на националном и интернационалном нивоу, неоп-ходна је глобална сарадња различитих друштвених субјеката.