bluuebunny/crossref_metadata_2025 huggingface dataset:
Chemical composition of wonderful kola (Bucchlozia coriacea) and breadfruit (Artocarpus altilis) seeds grown in south–south, Nigeria
Authors: Aremu MO , Passali DB , Ibrahim H , Akinyeye RO
Published: May 2018

The proximate and amino acid compositions of Artocarpus altilis and Bucchholzia coriacea were investigated using standard analytical techniques. The respective proximate composition (%) for the Artocarpus altilis and Bucchholzia coriacea samples were: Moisture (5.91 and 5.67); ash (4.39 and 5.13); crude fat (4.42 and 2.76); crude protein (12.27 and 14.78); crude fibre (7.10 and 6.27); carbohydrate (65.91 and 65.39). The calculated fatty acids and metabolizable energy for the Artocarpus altilis and Bucchholzia coriacea samples were 3.54 and 2.21 %; 1492.60 and 1465.01 kJ/100 g, respectively. The most abundant minerals in Artocarpus altilis and Bucchholzia were potassium (658.42 and 369.64 mg/100 g) and phosphorus (382.55 and 261.38 mg/100 g), respectively. The amino acid profile revealed that Artocarpus altilis and Bucchholzia coriacea samples contained nutritionally useful quantities of most of the essential amino acids. The total essential amino acids (TEAA) (with His) were 31.14 and 34.40 g/100 g crude protein for the Artocarpus altilis and Bucchholzia coriacea samples, respectively. The first limiting amino acid was Met + Cys (TSAA) for all the samples and calculated isoeletric points (ρl) were 3.52 and 4.05 for Artocarpus altilis and Bucchholzia coriacea, respectively.Bangladesh J. Sci. Ind. Res.53(2), 125-132, 2018
Behavioral factors associated with the development of skin cancer in patients of arsenicosis
Authors: Noor Towhida , Sikder Md. Shahidullah , Khondker Lubna , Islam Bhuiyan Mohammed Saiful , Rahman Tanvir
Published: May 2018

The study was conducted to evaluate the behavioral factors associated with the development of skin cancer in arsenicosis patients. Arsenicosis patients without skin cancer were taken as control. In the sun-exposed area of the body, 57.2% of skin carcinoma was Bowen’s disease. In the covered area of the body, 56.0% was Bowen’s disease, 36% was squamous cell carcinoma and 8% was basal cell carcinoma. Again, 53.1% of case and 59.4% of control never used fertilizer and pesticide. The majorities were non-smoker (case 53.1%, control 59.3%). Mean cumulative sun exposure was more in the case group (5853.9 ± 2219.7 hours) than in the control group (2219 ± 392.4 hours) and the rate of sun exposure was also higher in the case group. In conclusion, sun exposure was significantly higher in carcinoma patients and since most of the lesions were in the covered areas of the body, it can be said that these carcinomas were due to arsenicosis and not due to sun exposure and smoking status, use of fertilizer and pesticides were not associated with the development of skin carcinoma.
Effect of ethanol extract of Trigonella foenum-graecum on gentamicin-induced nephrotoxicity in rat
Authors: Hilmi Syeda Rubayat , Dewan Zesmin Fauzia , Kabir A. K. M. Nurul
Published: May 2018

The present study was designed to determine the ameliorative effect of ethanol extract of Trigonella foenum-graecum in an experimental model of gentamicin-induced nephrotoxic rat. To induce nephrotoxicity, gentamicin was administered (80 mg/kg/day for 7 days) intraperitoneally. The ethanol extract of T. foenum-graecum was administered (500 mg/kg/day) orally concomitantly with gentamicin for 21 days and 28 days in different groups. Biochemical indices i.e. serum creatinine and serum urea levels were estimated to determine nephrotoxicity and amelioration of nephrotoxicity in all groups. To determine the status of oxidative stress and lipid peroxidation, the renal cortical reduced glutathione and malondialdehyde levels were estimated. Changes in renal architecture were estimated by histopathology of renal tissues. Statistically significant amelioration was observed in all the biochemical parameters supported by significant improvement of renal cortical histology in T. foenum-graecum-treated groups.
Effect of cardiopulmonary bypass on hemostasis in patients undergoing cardiac surgery
Authors: Ahmad Jubayer , Ranjan Redoy , Saha Heemel , Saklayen S. M. G. , Begum Masuda , Adhikary Asit Baran
Published: May 2018

This study aimed to evaluate the hemostatic derangement in patients undergoing elective cardiac surgery using cardiopulmonary bypass. Total 55 patients of either sex, were divided into three groups: Group A (n=20): Patients selected for elective cardiac surgery without cardiopulmonary bypass; Group B (n=20): Patients who undergone cardiac surgery with cardiopulmonary bypass time <90 min; and Group C (n=15): Patients who undergone cardiac surgery with cardiopulmonary bypass time either 90 min or more. The difference of mean hemoglobin, total count of WBC, and platelet count on immediate post-operative period and at 7 days after surgery were statistically significant among the groups. The mean hematocrit value, fibrinogen level and coagulation profile were statistically significant between the two groups in comparison to pre-operative value. The mean cross-clamp time and bypass time were statistically significant between the two sub-groups of cardiopulmonary bypass population. The mean blood loss was more (1513.3 ± 307.9 mL) where the cardiopulmonary bypass was used for >90 min in comparison to other population. Prolong cardiopulmonary bypass time associated with more hemostatic abnormalities and complications can be minimized by shortening the bypass time.
Obesity phenotypes and their adipocyte dysfunction among the attendants at outpatient department
Authors: Naher Sabikun , Hoque M. Mozammel , Imam Hasan
Published: May 2018

The present study was aimed to find out the frequency of obesity phenotypes and to correlate adipocyte dysfunction with different obesity phenotypes. A total of 1,507 apparently healthy adults attending the outpatient department were grouped into three based on body mass index which were then further categorized into six groups according to metabolically unhealthy or healthy phenotypes by the presence or absence of metabolic syndrome. Of them, metabolically obese normal weight, overweight, healthy obese and unhealthy obese groups were included as obesity phenotypes. Then by purposive sampling, leptin and adiponectin concentration of 184 subjects with different phenotypes were measured to find out the adipocyte dysfunction. Metabolically obese overweight followed by metabolically unhealthy obese were more prevalent i,e.,  24.9% and 19.5%. All obesity phenotypes except metabolically obese normal weight were significantly documented with adipocyte dysfunction (p<0.05).
Pre-Metric Spaces Along with Different Types of Triangle Inequalities
Authors: Wu Hsien-Chung
Published: May 2018

The T 1 -spaces induced by the pre-metric spaces along with many forms of triangle inequalities are investigated in this paper. The limits in pre-metric spaces are also studied to demonstrate the consistency of limit concept in the induced topologies.
Tribocorrosion Properties of PEO Coatings Produced on AZ91 Magnesium Alloy with Silicate- or Phosphate-Based Electrolytes
Authors: Pezzato Luca , Vranescu Dragos , Sinico Marco , Gennari Claudio , Settimi Alessio Giorgio , Pranovi Pietro , Brunelli Katya , Dabalà Manuele
Published: May 2018

In this work, the tribocorrosion behavior of plasma electrolytic oxidation (PEO)-coated AZ91 samples was studied. In particular, two different coatings were produced and compared. One was obtained with an alkaline electrolyte containing sodium phosphate, whereas the other one was produced with an alkaline electrolyte containing sodium silicate. The coatings were characterized with SEM-EDS and XRD techniques, and after the tribocorrosion tests, the wear scars were analyzed with SEM-EDS. The tribocorrosion behavior was evaluated measuring the OCP during a pin on disk test performed in an aggressive environment. Moreover, potentiodynamic polarization and electrochemical impedance spectroscopy tests were performed, to evaluate the corrosion resistance of the different samples in the absence of wear phenomena. The behavior of all the PEO-treated specimens was compared with the one of the untreated sample. A remarkable increase in the tribocorrosion performances after the PEO treatments was observed. Moreover, the samples obtained with the electrolyte containing silicates showed higher tribocorrosion performances.
Sparse-Aware Bias-Compensated Adaptive Filtering Algorithms Using the Maximum Correntropy Criterion for Sparse System Identification with Noisy Input
Authors: Ma Wentao , Zheng Dongqiao , Zhang Zhiyu , Duan Jiandong , Qiu Jinzhe , Hu Xianzhi
Published: May 2018

To address the sparse system identification problem under noisy input and non-Gaussian output measurement noise, two novel types of sparse bias-compensated normalized maximum correntropy criterion algorithms are developed, which are capable of eliminating the impact of non-Gaussian measurement noise and noisy input. The first is developed by using the correntropy-induced metric as the sparsity penalty constraint, which is a smoothed approximation of the ℓ 0 norm. The second is designed using the proportionate update scheme, which facilitates the close tracking of system parameter change. Simulation results confirm that the proposed algorithms can effectively improve the identification performance compared with other algorithms presented in the literature for the sparse system identification problem.
CMOS Compatible Bio-Realistic Implementation with Ag/HfO2-Based Synaptic Nanoelectronics for Artificial Neuromorphic System
Authors: Chen Lin , He Zhen-Yu , Wang Tian-Yu , Dai Ya-Wei , Zhu Hao , Sun Qing-Qing , Zhang David Wei
Published: May 2018

The emerging resistive switching devices have attracted broad interest as promising candidates for future memory and computing applications. Particularly, it is believed that memristor-based neuromorphic engineering promises to enable efficient artificial neuromorphic systems. In this work, the synaptic abilities are demonstrated in HfO2-based resistive memories for their multi-level storage capability as well as being compatible with advanced CMOS technology. Both inert metal (TaN) and active metal (Ag) are selected as top electrodes (TE) to mimic the abilities of a biological synapse. HfO2-based resistive memories with active TE exhibit great advantages in bio-realistic implementation such as suitable switching speed, low power and multilevel switching. Moreover, key features of a biological synapse such as short-term/long-term memory, “learning and forgetting”, long-term potentiation/depression, and the spike-timing-dependent plasticity (STDP) rule are implemented in a single Ag/HfO2/Pt synaptic device without the poorly scalable software and tedious process in transistors-based artificial neuromorphic systems.
Scheduling Distributed Energy Resource Operation and Daily Power Consumption for a Smart Building to Optimize Economic and Environmental Parameters
Authors: Pooranian Zahra , Abawajy Jemal H. , P Vinod , Conti Mauro
Published: May 2018

In this paper, we address the problem of minimizing the total daily energy cost in a smart residential building composed of multiple smart homes with the aim of reducing the cost of energy bills and the greenhouse gas emissions under different system constraints and user preferences. As the household appliances contribute significantly to the energy consumption of the smart houses, it is possible to decrease electricity cost in buildings by scheduling the operation of domestic appliances. In this paper, we propose an optimization model for jointly minimizing electricity costs and CO2 emissions by considering consumer preferences in smart buildings that are equipped with distributed energy resources (DERs). Both controllable and uncontrollable tasks and DER operations are scheduled according to the real-time price of electricity and a peak demand charge to reduce the peak demand on the grid. We formulate the daily energy consumption scheduling problem in multiple smart homes from economic and environmental perspectives and exploit a mixed integer linear programming technique to solve it. We validated the proposed approach through extensive experimental analysis. The results of the experiment show that the proposed approach can decrease both CO2 emissions and the daily energy cost.
Cross Test Comparison in Transformer Windings Frequency Response Analysis
Authors: Banaszak Szymon , Szoka Wojciech
Published: May 2018

Frequency Response Analysis (FRA) is an important tool used for diagnostic measurements of power transformers. Standard test configuration applied in the industry is the end-to-end open test setup; however, an interwinding capacitive configuration is also used. This paper presents a method—Cross Test Comparison (CTC)—for simultaneous analysis of results coming from both the mentioned test setups. Such an approach could offer a more sensitive tool for detecting some faults; moreover, it takes into consideration the influence of both voltage sides of a transformer in a one test result. The authors have used several indices to quantitatively assess the test results and proposed new approach to data interpretation. CTC method was tested using data from measurements performed in three cases: a unit tested in laboratory with introduced controlled deformations; transformers measured under industrial conditions; and a transformer with FRA changes resulting from tap-changer operations. The results showed that CTC method is more effective at detecting faults on the basis of FRA measurements.
On the Optimal Pole Width for Direct Drive Linear Wave Power Generators Using Ferrite Magnets
Authors: Hagnestål Anders
Published: May 2018

In this work, ferrite magnet linear generators for wave power applications are considered. These machines operate at unusually low speeds, around and even below 1 m/s, at which the optimal geometry differs from standard machines, since the copper loss and the force density become considerably more important. The focus is on translator design, and analytical two-dimensional (2D) expressions for the optimal 2D geometry are derived. Finite Element Analysis (FEA) is also applied to verify the analytical expressions and to determine effects from leakage fluxes and iron saturation. Demagnetization of ferrite magnets is also discussed and calculations are made to show the demagnetization situation for the magnets in different geometries. Finally, an example generator design is made to illustrate the findings. This generator is compared to three other generator concepts. It is concluded that ferrite magnet generators can have at least nearly the same shear stress as surface mounted neodymium magnet generators at low speed if the airgap is 3 mm or less, provided that a proper pole length is chosen, and that they can be economically competitive to neodymium magnet generators for wave power. It is also concluded that the demagnetization situation for the magnets can be severe, and that the choice of magnet grade and pole length is crucial in this respect.
Evolutionary Game Theory: A Renaissance
Authors: Newton Jonathan
Published: May 2018

Economic agents are not always rational or farsighted and can make decisions according to simple behavioral rules that vary according to situation and can be studied using the tools of evolutionary game theory. Furthermore, such behavioral rules are themselves subject to evolutionary forces. Paying particular attention to the work of young researchers, this essay surveys the progress made over the last decade towards understanding these phenomena, and discusses open research topics of importance to economics and the broader social sciences.
Sex-Specific Transcriptome Differences in Substantia Nigra Tissue: A Meta-Analysis of Parkinson’s Disease Data
Authors: Mariani Elisa , Lombardini Lorenza , Facchin Federica , Pizzetti Fabrizio , Frabetti Flavia , Tarozzi Andrea , Casadei Raffaella
Published: May 2018

Parkinson’s disease (PD) is one of the most common progressive neurodegenerative diseases. Clinical and epidemiological studies indicate that sex differences, as well as genetic components and ageing, can influence the prevalence, age at onset and symptomatology of PD. This study undertook a systematic meta-analysis of substantia nigra microarray data using the Transcriptome Mapper (TRAM) software to integrate and normalize a total of 10 suitable datasets from multiple sources. Four different analyses were performed according to default parameters, to better define the segments differentially expressed between PD patients and healthy controls, when comparing men and women data sets. The results suggest a possible regulation of specific sex-biased systems in PD susceptibility. TRAM software allowed us to highlight the different activation of some genomic regions and loci involved in molecular pathways related to neurodegeneration and neuroinflammatory mechanisms.
Monitoring the Chemical Profile in Agarwood Formation within One Year and Speculating on the Biosynthesis of 2-(2-Phenylethyl)Chromones
Authors: Liao Ge , Dong Wen-Hua , Yang Jin-Ling , Li Wei , Wang Jun , Mei Wen-Li , Dai Hao-Fu
Published: May 2018

Agarwood is highly valued for its uses as incense, perfume, and medicine. However, systematic analyses of dynamic changes of secondary metabolites during the process of agarwood formation have not yet been reported. In this study, agarwood was produced by transfusing the agarwood inducer into the trunk of Aquilaria sinensis, and changing patterns of chemical constituents, especially 2-(2-phenylethyl)chromones (PECs), in wood samples collected from the 1st to 12th month, were analyzed by GC-EI-MS and UPLC-ESI-MS/MS methods. Aromatic compounds, steroids, fatty acids/esters, sesquiterpenoids, and PECs were detected by GC-MS, in which PECs were the major constituents. Following this, UPLC-MS was used for further comprehensive analysis of PECs, from which we found that 2-(2-phenylethyl)chromones of flindersia type (FTPECs) were the most abundant, while PECs with epoxidated chromone moiety were detected with limited numbers and relatively low content. Speculation on the formation of major FTPECs was fully elucidated in our context. The key step of FTPECs biosynthesis is possibly catalyzed by type III polyketide synthases (PKSs) which condensate dihydro-cinnamoyl-CoA analogues and malonyl-CoA with 2-hydroxy-benzoyl-CoA to produce 2-(2-phenyethyl)chromone scaffold, or with 2,5-dihydroxybenzoyl-CoA to form FTPECS with 6-hydroxy group, which may serve as precursors for further reactions catalyzed by hydroxylase or O-methyltransferase (OMT) to produce FTPECs with diverse substitution patterns. It is the first report that systematically analyzed dynamic changes of secondary metabolites during the process of agarwood formation and fully discussed the biosynthetic pathway of PECs.
Functionalization Effect on Polymer Nanocomposite Coatings Based on TiO2–SiO2 Nanoparticles with Superhydrophilic Properties
Authors: Vázquez-Velázquez Arturo Román , Velasco-Soto Miguel Angel , Pérez-García Sergio Alfonso , Licea-Jiménez Liliana
Published: May 2018

In this study, a novel binary nanocomposite system based on TiO2-SiO2 was functionalized with trimethylolpropane triacrylate (TMPTA) and characterized by XPS and XRD. Results revealed that TiO2-SiO2 nanoparticles were covalently functionalized. Functionalized nanoparticles at low concentrations (0.1 wt % and 0.5 wt %) were dispersed in acrylic acid acting as a polymer matrix. Nanocomposite coatings analysis demonstrate to achieve superhydrophilic properties as well as very good optical characteristics. Water contact angle characterization showed the functionalization effect by achieving a superhydrophilic behavior with a contact angle less than 5°. UV-Vis measurements demonstrated high optical transmittance above 95% for the coatings. Based on the obtained results a mechanism describing the chemical interactions of the constituents responsible for the synergy in the nanocomposite as well as the morphological play role in the behavior are presented.
Monolithic Solid Based on Single-Walled Carbon Nanohorns: Preparation, Characterization, and Practical Evaluation as a Sorbent
Authors: Fresco-Cala Beatriz , López-Lorente Ángela I. , Cárdenas Soledad
Published: May 2018

A monolithic solid based solely on single walled carbon nanohorns (SWNHs) was prepared without the need of radical initiators or gelators. The procedure involves the preparation of a wet jelly-like system of pristine SWNHs followed by slow drying (48 h) at 25 °C. As a result, a robust and stable porous network was formed due to the interaction between SWNHs not only via π-π and van der Waals interactions, but also via the formation of carbon bonds similar to those observed within dahlia aggregates. Pristine SWNHs and the SWNH monolith were characterized by several techniques, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), confocal laser scanning microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and nitrogen intrusion porosimetry. Taking into account the efficiency of carbon nanoparticles in sorption processes, the potential applicability of the SWNH-monolith in this research field was explored using toluene; m-, p-, and o-xylene; ethylbenzene; and styrene, as target analytes. Detection limits were 0.01 µg·L−1 in all cases and the inter-day precision was in the interval 7.4–15.7%. The sorbent performance of the nanostructured monolithic solid was evaluated by extracting the selected compounds from different water samples with recovery values between 81.5% and 116.4%.
“I Am Afraid of Telling You This, Lest You’d Be Scared Shitless!”: The Myth of Secrecy and the Study of the Esoteric Traditions of Bengal
Authors: Lorea Carola Erika
Published: May 2018

As the verse chosen as a title for this article emblematically shows, esoteric movements have consistently used secrecy as a literary topos in their oral and written cultural expressions for a number of purposes. Scholars of South Asian religions, especially those in field of Tantric studies, have been scrutinizing for decades the need for secretive doctrines and a secret code-language (sandhyā bhāṣā), mostly interrogating textual sources and neglecting the contemporary experience and exegetical authority of living lineages. In this paper, I firstly address ethical and epistemological problems in the study of esoteric religious movements in order to propose innovative methodological strategies. Then, I offer numerous examples drawn from extensive field-work and in-depth literary study of contemporary esoteric lineages of West Bengal (India) and Bangladesh, in order to discuss the local discourse on secrecy. Finally, I review previously assumed notions on secrecy in South Asian religions, and I suggest to take into serious consideration local perspectives on the accessibility of esoteric knowledge, leading to a more nuanced idea of secrecy, constantly subjected to temporal and situational negotiations between silence and disclosure.
Geometric Positioning Accuracy Improvement of ZY-3 Satellite Imagery Based on Statistical Learning Theory
Authors: Jiao Niangang , Wang Feng , You Hongjian , Yang Mudan , Yao Xinghui
Published: May 2018

With the increasing demand for high-resolution remote sensing images for mapping and monitoring the Earth’s environment, geometric positioning accuracy improvement plays a significant role in the image preprocessing step. Based on the statistical learning theory, we propose a new method to improve the geometric positioning accuracy without ground control points (GCPs). Multi-temporal images from the ZY-3 satellite are tested and the bias-compensated rational function model (RFM) is applied as the block adjustment model in our experiment. An easy and stable weight strategy and the fast iterative shrinkage-thresholding (FIST) algorithm which is widely used in the field of compressive sensing are improved and utilized to define the normal equation matrix and solve it. Then, the residual errors after traditional block adjustment are acquired and tested with the newly proposed inherent error compensation model based on statistical learning theory. The final results indicate that the geometric positioning accuracy of ZY-3 satellite imagery can be improved greatly with our proposed method.
Financial Security and Optimal Scale of Foreign Exchange Reserve in China
Authors: Zhou Guangyou , Yan Xiaoxuan , Luo Sumei
Published: May 2018

The study of how foreign exchange reserves maintain financial security is of vital significance. This paper provides simulations and estimations of the optimal scale of foreign exchange reserves under the background of possible shocks to China’s economy due to the further opening of China’s financial market and the sudden stop of capital inflows. Focused on the perspective of financial security, this article tentatively constructs an optimal scale analysis framework that is based on a utility maximization of the foreign exchange reserve, and selects relevant data to simulate the optimal scale of China’s foreign exchange reserves. The results show that: (1) the main reason for the fast growth of the Chinese foreign exchange reserve scale is the structural trouble of its double international payment surplus, which creates long-term appreciation expectations for the exchange rate that make it difficult for international capital inflows and excess foreign exchange reserves to enter the real economic growth mechanism under the model of China’s export-driven economy growth; (2) the average optimal scale of the foreign exchange reserve in case of the sudden stop of capital inflows was calculated through parameter estimation and numerical simulation to be 13.53% of China’s gross domestic product (GDP) between 1994 and 2017; (3) with the function of the foreign exchange reserves changing from meeting basic transaction demands to meeting financial security demands, the effect of the foreign exchange reserve maintaining the state’s financial security is becoming more and more obvious. Therefore, the structure of foreign exchange reserve assets should be optimized in China, and we will give full play to the special role of foreign exchange reserve in safeguarding a country’s financial security.
De integración e identidades. Portugueses en las cofradías limeñas, 1571-1680
Authors: Sullón Barreto Gleydi
Published: May 2018

El objeto de este artículo es identificar la capacidad de integración de los portugueses residentes en Lima entre 1571-1680, a través del análisis de los vínculos creados con las cofradías y hermandades de la ciudad. No hubo en la Lima colonial asociaciones de carácter nacional que agrupasen de forma exclusiva a los inmigrantes portugueses, como sí ocurrió, en cambio, en la España Moderna. De esta manera, el grupo extranjero que nos ocupa, puso de manifiesto su intención de procurar diversas estrategias para integrarse a la tierra de adopción.
Change during psychotherapy: the perspective of children and adolescents who have been sexually abused
Authors: Capella Claudia , Gutiérrez Carolina , Rodrìguez Loreto , Gòmez Camila
Published: May 2018

The aim of this research was to identify the meanings of psychotherapeutic change of children and adolescents who have suffered sexual abuse and were in psychotherapy. In order to do this, a qualitative study was carried out in which in-depth interviews complemented with drawings were conducted with 10 children and adolescents, aged between 6 and 16 years, who were taking part in psychotherapy due to sexual abuse. The interviews took place between 6 and 10 months after the start of the therapy and before it ended. Thematic narrative analysis was used for the interviews and visual narrative analysis for the drawings. The main findings showed that children and adolescents visualized psychotherapeutic change as a process in which gradual progress is made. The participants notice changes from an initial state of sadness and distress, mainly describing a positive shift in terms of emotional well-being. In addition, in this phase of the therapy only a few participants identified changes in their feelings regarding the abusive experience. The participants identified aspects of the therapy and supportive relationships with significant others as elements that foster these changes. In their view, hindering elements include changes of therapist, legal factors, and not being believed by their family. It is discussed the importance of knowing the children and adolescents' perspective regarding psychotherapeutic change while participating in therapy processes, using multiple methodologies, to generate interventions that suit the needs of this population and match the pace of children and adolescents' change.
Norm convolution inequalities in Lebesgue spaces
Authors: Nursultanov Erlan , Tikhonov Sergey , Tleukhanova Nazerke
Published: May 2018

We obtain upper and similar lower estimates of the (

L_p, L_q

) norm for the convolution operator. The upper estimate improves on known convolution inequalities. The technique to obtain lower estimates is applied to study boundedness problems for oscillatory integrals.
Topological entropy of irregular sets
Authors: Barreira Luis , Li Jinjun , Valls Claudia
Published: May 2018

For expansive continuous maps with the specification property, we compute the topological entropy of the irregular set for the Birkhoff averages of a continuous function. This is the set of points for which the Birkhoff averages do not converge. The entropy is expressed in terms of a conditional variational principle. We also consider the general case of irregular sets obtained from ratios of Birkhoff averages of continuous functions. Moreover, we obtain a conditional variational principle for the topological entropy of the family of subsets of the irregular set formed by the points such that the set of accumulation points of the ratio of Birkhoff averages is a given interval. As nontrivial applications, we obtain conditional variational principles for the topological entropy of the level sets of local entropies, pointwise dimensions and Lyapunov exponents both on repellers and hyperbolic sets.
Центрально существенные кольца
Authors: Markov Viktor Timofeevich , Tuganbaev Askar
Published: May 2018

Центрально существенное кольцо определяется как кольцо, являющееся существенным расширением своего центра (как модуль над центром). Приводится серия примеров некоммутативных центрально существенных колец, описаны некоторые свойства центрально существенных колец.
О замкнутых классах в частичной $k$-значной логике, содержащих класс монотонных функций
Authors: Alekseev Valerii Borisovich
Published: May 2018

Пусть $A$ - предполный класс (максимальный клон) в $k$-значной логике и $T(A)$ - семейство всех замкнутых классов (относительно суперпозиции) в частичной $k$-значной логике, содержащих $A$. В статье установлен простой критерий, который по частичному порядку, задающему предполный класс $A$ монотонных функций, позволяет установить, является ли семейство $T(A)$ конечным или бесконечным. Этим завершается решение задачи о конечности $T(A)$ для всех предполных классов $k$-значной логики. Для доказательства используются новые семейства замкнутых классов, найденные автором.
Проблема рациональности для расслоений на коники
Authors: Prokhorov Yuri Gennadievich
Published: May 2018

Обзор посвящен проблеме рациональности трехмерных алгебраических многообразий со структурой расслоения на коники. Обсуждаются основные методы теории. Даны наброски доказательств некоторых принципиальных результатов и представлены новейшие достижения. Формулируется также множество открытых проблем.
Библиография: 209 названий.
A Meta Study on the Implications of Thermoelectric Generation on Hybrid Photovoltaic Systems
Authors: Ghinis Jamison , Leslie Clifford
Published: May 2018

The focus of this paper is a meta-study analysis of the efficiency of hybrid thermal and photovoltaic (PV) energy systems and how various materials and specific temperature ranges for thermoelectric (TE) generation can increase their efficiency. This meta-study focuses on papers obtained from ACS NANO, Scopus, Web of Science and Nature which discuss the theoretical and practical implementation of TE and PV systems, with various hybrid systems being considered. Analysed is the Figure of Merit from various hybrid TE and PV integrated systems, the effect of energy efficiency and power generation on different PV system temperatures, and output over area. The total efficiency of the hybrid system is found to have a considerable effect in all papers analysed, with an increase of 5 to 10 percent efficiency in energy output due to the thermoelectric generator (TEG) section, with this maximum efficiency occurring approximately in a 25 kelvin range [1]. A maximum output of 125 W peaks can be maintained for systems efficiently over 600 W/m2 modules, this is an up to 5 percent total efficiency increase in power output in the previously discussed 25 kelvin range [2]. The papers proposed demonstrate the more efficient implementations, potential for further study and implementation of hybrid systems within specific temperature and operating conditions.
SUB-PIXEL ACCURACY CRACK WIDTH DETERMINATION ON CONCRETE BEAMS IN LOAD TESTS BY TRIANGLE MESH GEOMETRY ANALYSIS
Authors: Liebold F. , Maas H.-G.
Published: May 2018

Abstract. This paper deals with the determination of crack widths of concrete beams during load tests from monocular image sequences. The procedure starts in a reference image of the probe with suitable surface texture under zero load, where a large number of points is defined by an interest operator. Then a triangulated irregular network is established to connect the points. Image sequences are recorded during load tests with the load increasing continuously or stepwise, or at intermittently changing load. The vertices of the triangles are tracked through the consecutive images of the sequence with sub-pixel accuracy by least squares matching. All triangles are then analyzed for changes by principal strain calculation. For each triangle showing significant strain, a crack width is computed by a thorough geometric analysis of the relative movement of the vertices.
SEAMLESS IMAGE MOSAICKING VIA SYNCHRONIZATION
Authors: Santellani E. , Maset E. , Fusiello A.
Published: May 2018

Abstract. This paper proposes an innovative method to create high-quality seamless planar mosaics. The developed pipeline ensures good robustness against many common mosaicking problems (e.g., misalignments, colour distortion, moving objects, parallax) and differs from other works in the literature because a global approach, known as synchronization, is used for image registration and colour correction. To better conceal the mosaic seamlines, images are cut along specific paths, computed using a Voronoi decomposition of the mosaic area and a shortest path algorithm. Results obtained on challenging real datasets show that the colour correction mitigates significantly the colour variations between the original images and the seams on the final mosaic are not evident.
ROBUST IMAGE ORIENTATION BASED ON RELATIVE ROTATIONS AND TIE POINTS
Authors: Wang X. , Rottensteiner F. , Heipke C.
Published: May 2018

Abstract. In this paper we present a novel approach for image orientation by combining relative rotations and tie points. First, we choose an initial image pair with enough correspondences and large triangulation angle, and we then iteratively add clusters of new images. The rotation of these newly added images is estimated from relative rotations by single rotation averaging. In the next step, a linear equation system is set up for each new image to solve the translation parameters with triangulated tie points which can be viewed in that new image, followed by a resection for refinement. Finally, we optimize the cluster of reconstructed images by local bundle adjustment. We show results of our approach on different benchmark datasets. Furthermore, we orient several larger datasets incl. unordered image datasets to demonstrate the robustness and performance of our approach.
The impact of earthquake cycle variability on neotectonic and paleoseismic slip rate estimates
Authors: Styron Richard
Published: May 2018

Abstract. Because of the natural variability (aleatoric uncertainty) in earthquake recurrence intervals and coseismic displacements on a fault, cumulative slip on a fault does not increase linearly or perfectly step-wise with time; instead, some amount of variability in shorter-term slip rates results. Though this variability could greatly affect the accuracy of neotectonic (i.e., late Quaternary) and paleoseismic slip rate estimates, these effects have not been quantified. In this study, idealized faults with four different, representative earthquake recurrence distributions are created with equal mean recurrence intervals (1,000 years) and coseismic slip distributions, and the variability in slip rate measurements over 500 to 100,000 year measurement windows is calculated for all faults through Monte Carlo simulations. The recurrence distributions used are quasi-periodic, unclustered and clustered lognormal distributions, and an unclustered exponential distribution. The results demonstrate that the most important parameter is the coefficient of variation (COV = standard deviation/mean) of the recurrence distributions rather than the shape of the distribution itself. Slip rate variability over short time scales ( 5 mean earthquake cycles (as in a neotectonic slip rate study). These uncertainties are independent of, and should be propagated with uncertainties in fault displacement and geochronologic measurements used to estimate slip rates. They may then aid in the comparison of slip rates from different methods or the evaluation of potential slip rate changes over time.
La fenomenología de Husserl como razón práctico/existencial: el mundo de la vida como fundamento del proyecto ilustrado husserliano de ciencia estricta
Authors: Gutiérrez Pozo Antonio
Published: May 2018

Este artículo afirma que la fenomenología, realización de la idea de filosofía como ciencia estricta, es la respuesta husserliana a la crisis epistemológica y ontológica que padecen la ciencia y la filosofía de su tiempo. Pero el sentido último de esta ciencia estricta fenomenológica es atender los problemas existenciales del ser humano debidos al divorcio establecido entre razón y existencia por la crisis Fin de Siècle. El proyecto fenomenológico ilustrado tiene para Husserl sobre todo un sentido práctico/existencial: fundamentar la idea de Europa como ideal de una existencia humana basada en ideas de razón, con sentido. La respuesta a la crisis sólo puede ser la filosofía como ciencia estricta fundada sobre la experiencia antepredicativa del mundo de la vida en la que (en la cual) se nos dan las cosas mismas, ‘lo que’ (nos) son primariamente. La ciencia volverá a tener significado humano cuando se fundamente sobre ese ámbito originario de experiencia, verdadera fuente de todo sentido y categoría.
Vicia villosa protein isolate: a new source of protein to make a biodegradable film
Authors: Rezaiyan Attar Farnaz , Rezagholi Fatemeh , Hesarinejad Mohammad Ali
Published: May 2018

Edible films from Vicia villosa protein isolate (VVPI) containing different contents of glycerol and sorbitol (30, 40, 50 and 60%w/w of protein) were developed. The aim of this study was to investigate the influence of type and concentration of plasticizers on the properties of edible films obtained from VVPI. Type and concentration of plasticizer significantly (p <0.05) affected the mechanical, barrier, thermal and surface properties as well as opacity of the films. As plasticizer concentration increased, tensile strength decreased concomitant with increase in elongation at break and water vapor permeability. The similar trend behavior was observed for the film solubility, which increased with increasing plasticizer concentration. Sorbitol plasticized films, showed higher film solubility compared to glycerol plasticized films. Sorbitol plasticized films provided the most tensile strength values; however, its effect on water vapor permeability was low. In contrast, glycerol plasticized films exhibited the least tensile strength values, resulting in increasing water vapor permeability. Opacity of glycerol plasticized films was lower than that of sorbitol plasticized films, and decreased with increasing plasticizer content (p <0.05). Also, a significant decrease (p <0.05) was observed in thermal features and surface hydrophobicity values with increasing in plasticizer contents. It was observed that the films plasticized with sorbitol had lower moisture content than those with glycerol.
The Role of Internet Marketing on E-Commerce
Authors: Niavand Hossein , Nia Farzaneh Haghighat , Mahesh R.
Published: May 2018

In this article, the examiner will consider the best Internet promoting routes for the achievement of a business. The principal goal of this article is only understanding the effect of the Internet on various showcasing regions, for example, item improvement and administration arrangement, advancement, valuing and conveyance channels. It is demonstrated that when makers associate straightforwardly with shoppers and abbreviate the circulation channels, wasteful aspects can be killed, item conveyance time can be diminished, and producers can construct the nearer association with purchasers. Purchasers utilize the Internet to lessen costs, discover items generally inaccessible, or increment their shopping accommodation. Online shoppers expect simple, justifiable, and secure requesting and instalment frameworks. Clients need confirmation that requests will be filled promptly. Internet business makes an incentive for clients from various perspectives. Clients are dealt with as a market of one. They can get a more prominent assortment of items, regularly at bringing down costs. The study suggests that businesses should pay special attention to the impacts of the Internet and its uses in marketing to be successful and profitable.
Raíces económicas de la crisis ecológica en Centroamérica
Authors: Acevedo Carlos
Published: May 2018

No abstract availableRealidad: Revista de Ciencias Sociales y Humanidades No. 37, 1994: 7-32
Visión alternativa para interpretar el fenómeno de la pobreza
Authors: Sánchez Sonia Ivett
Published: May 2018

No abstract availableRealidad: Revista de Ciencias Sociales y Humanidades No. 37, 1994: 33-56
Algo más que liberales
Authors: Fernández Buey Francisco
Published: May 2018

No abstract availableRealidad: Revista de Ciencias Sociales y Humanidades No. 38, 1994: 261-278
El poder de los brujos
Authors: Rodríguez Díaz Rafael
Published: May 2018

No abstract availableRealidad: Revista de Ciencias Sociales y Humanidades No. 38, 1994: 279-294
La Asamblea Legislativa son dos
Authors: Editor El
Published: May 2018

No abstract availableRealidad: Revista de Ciencias Sociales y Humanidades No. 39, 1994: 297-302
Treinta años de transformación en la estructura agraria de El Salvador
Authors: Seligson Mitchell A.
Published: May 2018

No abstract availableRealidad: Revista de Ciencias Sociales y Humanidades No. 41, 1994: 699-746
Urachal mucinous neoplasms--to be or not to be: Two cases and a review of current diagnostic criteria (WHO 2016)
Authors: Cuadra Juan Daniel Prieto , Pérez Lidia , García Isabel , Álvarez Martina , Herrera Bernardo , Hierro Isabel , Vicioso Luis
Published: May 2018

The urachus is an embryological remnant that extends from the bladder to the umbilicus. Urachal neoplasms represent less than 1% of malignant bladder tumors. The new 2016 edition of disease classifications from the WHO has updated the classification of epithelial neoplasms of urachal origin, distinguishing between glandular and non-glandular neoplasms and between cystic and non-cystic adenocarcinomas. In this article, we present two cases with similar clinical presentations but differing histology. We address their morphological, immunohistochemical, and molecular characterization; review the classification and diagnostic criteria of glandular urachal neoplasms included in the most recent literature with the aim of clarifying their differential diagnosis as well as their prognostic implication; and, ultimately, better understand these infrequent biological entities.
The Impact of Corporate Governance and Investor Confidence on Earning Management: Evidence from Thai-Listed Company
Authors: Attarit Thanapin
Published: May 2018

The aim of the research is to study impact of corporate governance and information of investor confidence on earning management of firms listed on the Stock Exchange of Thailand. Stratified random sampling technique was employed in order to obtain the required sample of 408 Thai-listed companies. The study have excluded financial companies because their capital structure and profit are different. The study uses annual data of companies in 2015. The results showed that the highest shareholders impact on earning management, the proportion of institutional investors influencing both the earning management and investor confidence, and companies with BIG4 have an influence on investors' confidence. However, board size and CEOs Duality did not find any influence on earning management and investor confidence.
Filial Piety, Living Arrangements, and Well-being of Urban Older Adults in Southern China
Authors: Tang Yong , Hooyman Nancy
Published: May 2018

This article examines the living arrangements and well-being of older adults in urban China. It draws upon the concept of filial piety and intergenerational care models to interpret findings regarding five different living arrangements for urban older adults: living alone (with a spouse or not), living with a son, living with a daughter, living in an institution (public or private), and other. Well-being is measured by activities of daily living, instrumental activities of daily living, and self-rated health questionnaires and the Center for Epidemiologic Studies Depression Scale. The findings have implications for policy makers addressing living arrangements and community-based care services for older adults.
The Effect of Information Content of Integrated Business Reports on the Credit Decision Making at Jordanian Commercial Banks
Authors: Al-Shatnawi Hasan Mahmoud , Al-Haija Ahmad Adnan Abo
Published: May 2018

The current paper tested the effect of the information content of integrated business reports in enabling credit officers at Jordanian commercial banks to assess the company’s capability to create value, and the effect of the so mentioned on credit decision making in the Jordanian environment. To achieve this objective, the researcher presented one of Jordanian companies’ financial reports through a proper comprehensive questionnaire, distributed over a sample of credit officers at Jordanian commercial banks, through three alternatives of accounting disclosure which include: traditional financial reports that express financial disclosure only, traditional financial reports in addition to non-financial information in the form of separated reports, and then integrated business reports (consolidated financial and non-financial information). The number of the analyzed questionnaires was 95. Arithmetic means, standard deviations, Simple Liner Regression analysis and One Way ANOVA analysis have been applied to test the research hypotheses and achieve its objectives. The results showed that there is an effect for the disclosure of (only financial information through traditional financial reports, non-financial information through separated reports, and consolidated financial and non-financial information through integrated business reports) in order to take the decision of credit at Jordanian commercial banks. The research also showed that there are significant differences between the variables of the decision of granting loans according to the three disclosure alternatives. It is noted that the information content of the integrated business reports had the greatest effect than the other two alternatives on the decision of granting credit.