bluuebunny/crossref_metadata_2025 huggingface dataset:
The Influence of Solution pH on the Kinetics of Resorcinol Electrooxidation (Degradation) on Polycrystalline Platinum
Authors: Mikolajczyk Tomasz , Luba Mateusz , Pierozynski Boguslaw , Kowalski Ireneusz M. , Wiczkowski Wieslaw
Published: June 2019

Electrochemical oxidation of resorcinol on a polycrystalline platinum electrode was investigated in five different solutions, namely 0.5 and 0.1 M H2SO4, 0.5 M Na2SO4, 0.5 and 0.1 M NaOH. The rates of electrochemical degradation of resorcinol were determined based on the obtained reaction parameters, such as resistance, capacitance and current-density. The electrochemical analyses (cyclic voltammetry and a.c. impedance spectroscopy) were carried-out by means of a three-compartment, Pyrex glass cell. These results showed that the electrochemical oxidation of resorcinol is strongly pH-dependent. In addition, the energy dispersive X-ray (EDX) spectroscopy technique was employed for Pt electrode surface characterization. Additionally, the quantitative determination of resorcinol removal was performed by means of instrumental high-performance liquid chromatography/mass spectrometry (HPLC/MS) methodology.
Engineering the Dimensional Interface of BiVO4-2D Reduced Graphene Oxide (RGO) Nanocomposite for Enhanced Visible Light Photocatalytic Performance
Authors: Sun Jing , Wang Chunxiao , Shen Tingting , Song Hongchen , Li Danqi , Zhao Rusong , Wang Xikui
Published: June 2019

Graphene as a two-dimensional (2D) nanoplatform is beneficial for assembling a 2D heterojunction photocatalytic system to promote electron transfer in semiconductor composites. Here a BiVO4 nanosheets/reduced graphene oxide (RGO) based 2D-2D heterojunction photocatalytic system as well as 0D-2D BiVO4 nanoparticles/RGO and 1D-2D BiVO4 nanotubes/RGO nanocomposites are fabricated by a feasible solvothermal process. During the synthesis; the growth of BiVO4 and the intimate interfacial contact between BiVO4 and RGO occur simultaneously. Compared to 0D-2D and 1D-2D heterojunctions, the resulting 2D-2D BiVO4 nanosheets/RGO composites yield superior chemical coupling; leading to exhibit higher photocatalytic activity toward the degradation of acetaminophen under visible light irradiation. Photoluminescence (PL) and photocurrent experiments revealed that the apparent electron transfer rate in 2D-2D BiVO4 nanosheets/RGO composites is faster than that in 0D-2D BiVO4 nanoparticles/RGO composites. The experimental findings presented here clearly demonstrate that the 2D-2D heterojunction interface can highlight the optoelectronic coupling between nanomaterials and promote the electron–hole separation. This study will motivate new developments in dimensionality factors on designing the heterojunction photocatalysts and promote their photodegradation photocatalytic application in environmental issues.
Influence of Socio-Economic and Psychosocial Profiles on the Human Breast Milk Bacteriome of South African Women
Authors: Ojo-Okunola Anna , Claassen-Weitz Shantelle , Mwaikono Kilaza S. , Gardner-Lubbe Sugnet , Stein Dan J. , Zar Heather J. , Nicol Mark P. , du Toit Elloise
Published: June 2019

The human breast milk (HBM) bacteriome is an important, continuous source of microbes to the neonate in early life, playing an important role in shaping the infant’s intestinal bacteriome. Study of the composition of the HBM bacteriome is an emerging area of research, with little information available, particularly from low- and middle-income countries. The aim of this study was to characterize the diversity of bacterial communities in HBM samples collected between 6–10 weeks postpartum from lactating South African women and to study potential influencing factors of the bacteriome. Using 16S rRNA gene sequencing of samples from 554 women, we demonstrated that the HBM bacteriome was largely dominated by the phyla Firmicutes (mean relative abundance: 71.1%) and Actinobacteria (mean relative abundance: 16.4%). The most abundant genera identified from the HBM bacteriome were Streptococcus (mean relative abundance: 48.6%), Staphylococcus (mean relative abundance: 17.8%), Rothia (mean relative abundance: 5.8%), and Corynebacterium (mean relative abundance: 4.3%). “Core” bacterial genera including Corynebacterium, Streptococcus, Staphylococcus, Rothia, Veillonella, Gemella, Acinetobacter, Micrococcus and a genus belonging to the Enterobacteriaceae family were present in 80% of samples. HBM samples were classified, according to their bacteriome, into three major clusters, dominated by the genera Staphylococcus (cluster 1), a combination of Staphylococcus and Streptococcus (cluster 2), and Streptococcus (cluster 3). The cluster groups differed significantly for Shannon and chao1 richness indices. Bacterial interactions were studied using co-occurrence networks with positive associations observed between the abundances of Staphylococcus and Corynebacteria (members of the skin microflora) and between Streptococcus, Rothia, Veillonella, and Gemella (members of the oral microflora). HBM from older mothers had a higher Shannon diversity index. The study site was associated with differences in HBM bacteriome composition (permutational multivariate analysis of variance using distance matrices (PERMANOVA), p < 0.05). No other tested socio-demographic or psychosocial factors were associated with HBM bacterial composition.
How Many Mammalian Reovirus Proteins are involved in the Control of the Interferon Response?
Authors: Lanoie Delphine , Boudreault Simon , Bisaillon Martin , Lemay Guy
Published: June 2019

As with most viruses, mammalian reovirus can be recognized and attacked by the host-cell interferon response network. Similarly, many viruses have developed resistance mechanisms to counteract the host-cell response at different points of this response. Reflecting the complexity of the interferon signaling pathways as well as the resulting antiviral response, viruses can—and often have—evolved many determinants to interfere with this innate immune response and allow viral replication. In the last few years, it has been evidenced that mammalian reovirus encodes many different determinants that are involved in regulating the induction of the interferon response or in interfering with the action of interferon-stimulated gene products. In this brief review, we present our current understanding of the different reovirus proteins known to be involved, introduce their postulated modes of action, and raise current questions that may lead to further investigations.
Ferritin in Kidney and Vascular Related Diseases: Novel Roles for an Old Player
Authors: Balla József , Balla György , Zarjou Abolfazl
Published: June 2019

Iron is at the forefront of a number of pivotal biological processes due to its ability to readily accept and donate electrons. However, this property may also catalyze the generation of free radicals with ensuing cellular and tissue toxicity. Accordingly, throughout evolution numerous pathways and proteins have evolved to minimize the potential hazardous effects of iron cations and yet allow for readily available iron cations in a wide variety of fundamental metabolic processes. One of the extensively studied proteins in the context of systemic and cellular iron metabolisms is ferritin. While clinicians utilize serum ferritin to monitor body iron stores and inflammation, it is important to note that the vast majority of ferritin is located intracellularly. Intracellular ferritin is made of two different subunits (heavy and light chain) and plays an imperative role as a safe iron depot. In the past couple of decades our understanding of ferritin biology has remarkably improved. Additionally, a significant body of evidence has emerged describing the significance of the kidney in iron trafficking and homeostasis. Here, we briefly discuss some of the most important findings that relate to the role of iron and ferritin heavy chain in the context of kidney-related diseases and, in particular, vascular calcification, which is a frequent complication of chronic kidney disease.
Lipid Metabolism as a Source of Druggable Targets for Antiviral Discovery against Zika and Other Flaviviruses
Authors: Martín-Acebes Miguel A. , Jiménez de Oya Nereida , Saiz Juan-Carlos
Published: June 2019

The Zika virus (ZIKV) is a mosquito-borne flavivirus that can lead to birth defects (microcephaly), ocular lesions and neurological disorders (Guillain-Barré syndrome). There is no licensed vaccine or antiviral treatment against ZIKV infection. The effort to understand the complex interactions of ZIKV with cellular networks contributes to the identification of novel host-directed antiviral (HDA) candidates. Among the cellular pathways involved in infection, lipid metabolism gains attention. In ZIKV-infected cells lipid metabolism attributed to intracellular membrane remodeling, virion morphogenesis, autophagy modulation, innate immunity and inflammation. The key roles played by the cellular structures associated with lipid metabolism, such as peroxisomes and lipid droplets, are starting to be deciphered. Consequently, there is a wide variety of lipid-related antiviral strategies that are currently under consideration, which include an inhibition of sterol regulatory element-binding proteins (SREBP), the activation of adenosine-monophosphate activated kinase (AMPK), an inhibition of acetyl-Coenzyme A carboxylase (ACC), interference with sphingolipid metabolism, blockage of intracellular cholesterol trafficking, or a treatment with cholesterol derivatives. Remarkably, most of the HDAs identified in these studies are also effective against flaviviruses other than ZIKV (West Nile virus and dengue virus), supporting their broad-spectrum effect. Considering that lipid metabolism is one of the main cellular pathways suitable for pharmacological intervention, the idea of repositioning drugs targeting lipid metabolism as antiviral candidates is gaining force.
Ionic Porous Organic Polymers Based on Functionalized Tetraarylborates
Authors: Tomaszewski Patryk , Wiszniewski Marcin , Gontarczyk Krzysztof , Wieciński Piotr , Durka Krzysztof , Luliński Sergiusz
Published: June 2019

Lithium tetrakis(4-boronatoaryl)borates were subjected to polycondensation reactions with selected polyhydroxyl monomers such as 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) and 2,3,6,7-tetrahydroxy-9,10-dimethylanthracene (THDMA). Obtained boronate-type ionic porous polymers TAB1–4 were characterized by PXRD, 6Li and 11B magic-angle spinning nuclear magnetic resonance (MAS NMR), FT-IR, SEM, and TGA. They exhibit relatively good sorption of H2 (up to 75 cm3/g STP), whereas N2 uptake at 77 K for lower pressure range is relatively poor (up to 50 cm3/g STP below P/P0 = 0.8). In addition, the effect of elongation of aryl arms in the tetraarylborate core on the materials’ properties was studied. Thus, it was found that replacement of the 4-boronatophenyl with 4-boronatobiphenylyl group has a negative impact on the sorption characteristics.
Monitoring and Computation of the Volumes of Stockpiles of Bulk Material by Means of UAV Photogrammetric Surveying
Authors: Tucci Grazia , Gebbia Antonio , Conti Alessandro , Fiorini Lidia , Lubello Claudio
Published: June 2019

The monitoring and metric assessment of piles of natural or man-made materials plays a fundamental role in the production and management processes of multiple activities. Over time, the monitoring techniques have undergone an evolution linked to the progress of measure and data processing techniques; starting from classic topography to global navigation satellite system (GNSS) technologies up to the current survey systems like laser scanner and close-range photogrammetry. Last-generation 3D data management software allow for the processing of increasingly truer high-resolution 3D models. This study shows the results of a test for the monitoring and computing of stockpile volumes of material coming from the differentiated waste collection inserted in the recycling chain, performed by means of an unmanned aerial vehicle (UAV) photogrammetric survey and the generation of 3D models starting from point clouds. The test was carried out with two UAV flight sessions, with vertical and oblique camera configurations, and using a terrestrial laser scanner for measuring the ground control points and as ground truth for testing the two survey configurations. The computations of the volumes were carried out using two software and comparisons were made both with reference to the different survey configurations and to the computation software.
The Messapic Site of Muro Leccese: New Results from Integrated Geophysical and Archaeological Surveys
Authors: Bianco Catia , De Giorgi Lara , Giannotta Maria T. , Leucci Giovanni , Meo Francesco , Persico Raffaele
Published: June 2019

The regular application of geophysical survey techniques to evaluate archaeological sites is well established as a method for locating, defining, and mapping buried archaeological materials. However, it is not always feasible to apply a range of different methods over a particular site or landscape due to constraints in time or funding. This paper addresses the integrated application of three geophysical survey methods over an important archaeological site located in south Italy. In particular, it is focused on the results achieved from a past geophysical survey and the ongoing excavations performed by archaeologists in the site of Muro Leccese. Muro Leccese (Lecce) is one of the most important Messapian archaeological sites in southern Italy. The archaeological interest of the site was generated since the discovery of the remains of Messapian walls (late 4th–3rd centuries BC). With the aim of widening the archaeological knowledge of the Messapian settlement, several integrated methods, including magnetometry, ground-penetrating radar, and electrical resistivity tomography were used on site to fulfill a number of different research objectives. Since the most important targets were expected to be located at shallow soil depth, a three-dimensional (3D) ground-penetrating radar (GPR) survey was carried out in two zones, which were labeled respectively as zone 1 and zone 2, and were both quite close to the archaeological excavations. The GPR investigations were integrated with a 3D electrical resistivity tomography (ERT) survey in zone 1 and with a magnetometric, in gradiometry configuration survey in zone 2. The integration of several techniques allowed mapping the structural remains of this area and leading the excavation project. The geophysical results show a good correspondence with the archaeological features that were found after the excavation. Current work on the geophysical survey data using different codes for the processing of the data and merging different datasets using a Geographic Information System allowed achieving a user-friendly visualization that was presented to the archaeologists.
An IoT-Based Fog Computing Model
Authors: Ma Kun , Bagula Antoine , Nyirenda Clement , Ajayi Olasupo
Published: June 2019

The internet of things (IoT) and cloud computing are two technologies which have recently changed both the academia and industry and impacted our daily lives in different ways. However, despite their impact, both technologies have their shortcomings. Though being cheap and convenient, cloud services consume a huge amount of network bandwidth. Furthermore, the physical distance between data source(s) and the data centre makes delays a frequent problem in cloud computing infrastructures. Fog computing has been proposed as a distributed service computing model that provides a solution to these limitations. It is based on a para-virtualized architecture that fully utilizes the computing functions of terminal devices and the advantages of local proximity processing. This paper proposes a multi-layer IoT-based fog computing model called IoT-FCM, which uses a genetic algorithm for resource allocation between the terminal layer and fog layer and a multi-sink version of the least interference beaconing protocol (LIBP) called least interference multi-sink protocol (LIMP) to enhance the fault-tolerance/robustness and reduce energy consumption of a terminal layer. Simulation results show that compared to the popular max–min and fog-oriented max–min, IoT-FCM performs better by reducing the distance between terminals and fog nodes by at least 38% and reducing energy consumed by an average of 150 KWh while being at par with the other algorithms in terms of delay for high number of tasks.
An Adaptive Bluetooth/Wi-Fi Fingerprint Positioning Method based on Gaussian Process Regression and Relative Distance
Authors: Cao Hongji , Wang Yunjia , Bi Jingxue , Qi Hongxia
Published: June 2019

Trusted positioning data are very important for the fusion of Bluetooth fingerprint positioning (BFP) and Wi-Fi fingerprint positioning (WFP). This paper proposes an adaptive Bluetooth/Wi-Fi fingerprint positioning method based on Gaussian process regression (GPR) and relative distance (RD), which can choose trusted positioning results for fusion. In the offline stage, measurements of the Bluetooth and Wi-Fi received signal strength (RSS) were collected to construct Bluetooth and Wi-Fi fingerprint databases, respectively. Then, fingerprint positioning error prediction models were built with GPR and data from the fingerprint databases. In the online stage, online Bluetooth and Wi-Fi RSS readings were matched with the fingerprint databases to get a Bluetooth fingerprint positioning result (BFPR) and a Wi-Fi fingerprint positioning result (WFPR). Then, with the help of RD and fingerprint positioning error prediction models, whether the positioning results are trusted was determined. The trusted result is selected as the position estimation result when there is only one trusted positioning result among the BFPR and WFPR. The mean is chosen as the position estimation result when both the BFPR and WFPR results are trusted or untrusted. Experimental results showed that the proposed method was better than BFP and WFP, with a mean positioning error of 2.06 m and a root-mean-square error of 1.449 m.
Predicting Group Contribution Behaviour in a Public Goods Game from Face-to-Face Communication
Authors: Othman Ehsan , Saxen Frerk , Bershadskyy Dmitri , Werner Philipp , Al-Hamadi Ayoub , Weimann Joachim
Published: June 2019

Experimental economic laboratories run many studies to test theoretical predictions with actual human behaviour, including public goods games. With this experiment, participants in a group have the option to invest money in a public account or to keep it. All the invested money is multiplied and then evenly distributed. This structure incentivizes free riding, resulting in contributions to the public goods declining over time. Face-to-face Communication (FFC) diminishes free riding and thus positively affects contribution behaviour, but the question of how has remained mostly unknown. In this paper, we investigate two communication channels, aiming to explain what promotes cooperation and discourages free riding. Firstly, the facial expressions of the group in the 3-minute FFC videos are automatically analysed to predict the group behaviour towards the end of the game. The proposed automatic facial expressions analysis approach uses a new group activity descriptor and utilises random forest classification. Secondly, the contents of FFC are investigated by categorising strategy-relevant topics and using meta-data. The results show that it is possible to predict whether the group will fully contribute to the end of the games based on facial expression data from three minutes of FFC, but deeper understanding requires a larger dataset. Facial expression analysis and content analysis found that FFC and talking until the very end had a significant, positive effect on the contributions.
A Framework for Constructing a Secure Domain of Sensor Nodes
Authors: Furtak Janusz , Zieliński Zbigniew , Chudzikiewicz Jan
Published: June 2019

Application of the Internet of Things (IoT) in some critical areas (e.g., military) is limited mainly due to the lack of robust, secure, and trusted measures needed to ensure the availability, confidentiality, and integrity of information throughout its lifecycle. Considering the mostly limited resources of IoT devices connected by wireless networks and their dynamic placement in unsupervised or even hostile environments, security is a complex and considerable issue. In this paper, a framework which encompasses an approach to integrate some security measures to build a so-called “secure domain of sensors nodes” is proposed. The framework is based on the use of the Trusted Platform Modules (TPMs) in wireless sensor nodes. It encompasses an architecture of sensor nodes, their roles in the domain, and the data structures as well as the developed procedures which could be applied to generate the credentials for the sensor nodes, and subsequently, to build a local trust structure of each node as well as to build a trust relationship between a domain’s nodes. The proposed solution ensures the authentication of sensor nodes and their resistance against unauthorized impact with the hardware/software configuration allowing protection against malware that can infect the software. The usefulness of the presented framework was confirmed experimentally.
A New Design of an MOEMS Gyroscope Based on a WGM Microdisk Resonator
Authors: Xia Dunzhu , Huang Lingchao , Zhao Liye
Published: June 2019

In this paper, we present a new design for a micro-opto-electro-mechanical (MOEMS) gyroscope based on a whispering-gallery mode (WGM) microdisk resonator and MEMS resonator. The mechanical characteristics, frequency split, and quality factor (Q) of the MEMS resonator; the optical characteristics, Q value, and coupling regimes of the WGM resonator; and the coupling between the two resonators were analyzed. Its operation principle—the transformation process from angular velocity to the resonance wavelength of the WGM resonator—is presented at same time. Next, the analysis conclusions were validated with the help of simulations in ANSYS and FDTD (Finite-Difference Time-Domain) Solutions. Afterwards, some key specifications were estimated based on the results of simulations. Lastly, the fabrication process is detailed.
A Biomechanical Comparison of Successful and Unsuccessful Snatch Attempts among Elite Male Weightlifters
Authors: Nagao Hideyuki , Kubo Yasuyuki , Tsuno Tempei , Kurosaka Sho , Muto Masato
Published: June 2019

The success factor of the snatch has not been identified. Determining the success factors of the snatch among elite weightlifters might help to attain a successful snatch. This study aimed at clarifying the factors that lead to a successful snatch based on barbell trajectory among elite male weightlifters. Data were collected at the 2017 World and Junior World Weightlifting Championships. We digitized the barbell trajectory of the successful and unsuccessful snatch attempts of 61 lifters—an unsuccessful lift would be as a result of a frontward barbell drop—and calculated the kinematic and kinetic parameters of the barbell. No significant difference was found in the barbell maximum height (Dy1) between the successful and unsuccessful lifts. The amount of backward displacement of the barbell in the second pull phase to the catch position (DxL) of the successful lift was significantly larger than that of the unsuccessful lift (successful: 0.11 ± 0.05 m; unsuccessful: 0.10 ± 0.06 m; p < 0.01; d = 0.278). The barbell drop distance in the catch phase (Dy3) of the successful lift was significantly smaller than that in the unsuccessful lift (successful: 0.17 ± 0.04 m; unsuccessful: 0.18 ± 0.04 m; p < 0.001, d = 0.361). These results suggest that DxL and Dy3 are factors leading to a successful snatch lift, but not Dy1. The relative position in the sagittal axis of the barbell and the lifter in the catch position, and catching the barbell when its momentum was low, are important in order to achieve a successful snatch.
The Geography of Knowledge Sourcing, Personal Networks, and Innovation Effects: Evidence from the Biomedical Firms in Guangzhou, China
Authors: Xu Jili , Fan Yang Fiona , Xue Desheng
Published: June 2019

Personal networks, in contrast to organizational relations, have recently increased their significance to firms by allowing them to acquire external knowledge and strengthen their innovation capacity. Hot debates on the geography and innovation effects of personal networks persist, but these discussions are mainly derived from research works on western economies. Since personal interactions are context-sensitive, this paper examines the geography and the innovation effects of personal networks on biomedical firms in Guangzhou, which has a unique political and socioeconomic context owing to the transitional nature of China. This case study indicates that the geographic nature of personal knowledge networks is largely locally-based, and the primary driver of such networks is experience-based practices, such as repeated face-to-face contacts, labor mobility, and shared life experience. Personal knowledge networks contribute to both problem-solving and radical innovation for firms as a result of the guanxi-based relations in China that transform personal networks into channels for mobilizing innovation-related resources. Moreover, by dividing personal networks into bonding, bridging, and linking networks, this paper also de-homogenizes personal networks and delineates specific and differentiated innovation effects of manifold social relationships. Based on the research findings, policy implications aiming at laying the social ground of innovation are addressed.
Directional Thermodynamic Formalism
Authors: Ben Slimane Mourad , Ben Abid Moez , Ben Omrane Ines , Halouani Borhen
Published: June 2019

The usual thermodynamic formalism is uniform in all directions and, therefore, it is not adapted to study multi-dimensional functions with various directional behaviors. It is based on a scaling function characterized in terms of isotropic Sobolev or Besov-type norms. The purpose of the present paper was twofold. Firstly, we proved wavelet criteria for a natural extended directional scaling function expressed in terms of directional Sobolev or Besov spaces. Secondly, we performed the directional multifractal formalism, i.e., we computed or estimated directional Hölder spectra, either directly or via some Legendre transforms on either directional scaling function or anisotropic scaling functions. We obtained general upper bounds for directional Hölder spectra. We also showed optimal results for two large classes of examples of deterministic and random anisotropic self-similar tools for possible modeling turbulence (or cascades) and textures in images: Sierpinski cascade functions and fractional Brownian sheets.
Impact of Ergot Alkaloids on Female Reproduction in Domestic Livestock Species
Authors: Poole Rebecca K. , Poole Daniel H.
Published: June 2019

Fescue toxicosis is a multifaceted syndrome that elicits many negative effects on livestock consuming ergot alkaloids produced by endophyte-infected tall fescue. The economic losses associated with fescue toxicosis are primarily due to reproductive failure including altered cyclicity, suppressed hormone secretion, reduced pregnancy rates, agalactia, and reduced offspring birth weights. For decades, a multitude of research has investigated the physiological and cellular mechanisms of these reproductive failures associated with fescue toxicosis. This review will summarize the various effects of ergot alkaloids on female reproduction in grazing livestock species.
Merkel Cell Polyomavirus DNA Detection in Respiratory Samples: Study of a Cohort of Patients Affected by Cystic Fibrosis
Authors: Prezioso Carla , Di Lella Federica Maria , Rodio Donatella Maria , Bitossi Camilla , Trancassini Maria , Mele Annamaria , de Vito Corrado , Antonelli Guido , Pietropaolo Valeria
Published: June 2019

Background: The role of Merkel cell polyomavirus (MCPyV) as a respiratory pathogen is controversial, and it is still unclear in patients with cystic fibrosis (CF). The aim of this study was to define the MCPyV prevalence and epidemiology in CF patients in order to gain new insights into the association between MCPyV infection and respiratory diseases. Methods: A one-year study was conducted testing oropharyngeal aspirate samples from 249 and 124 CF and non-CF patients, respectively. Detection of MCPyV was carried out by nested polymerase chain reaction (PCR). Moreover, a sequence alignment to examine viral capsid protein 1 (VP1) and a phylogenetic analysis were performed. Results: MCPyV DNA was detected in 65 out of 249 samples analyzed CF (26%), a percentage that was higher than that recorded in non-CF patients (0.8%). There were no statistically significant differences in MCPyV prevalence according to gender, while there was a correlation between MCPyV detection and age. Interestingly, an association between the presence of MCPyV and the concurrent isolation of Staphylococcus aureus was found. Sequence analysis of MCPyV VP1 and phylogenetic analysis revealed a 99% homology with the published sequences of these viruses in GenBank. Conclusions: Detection of MCPyV in CF patient specimens pointed out a possible interaction between the virus and CF. Further studies are necessary to fully understand the involvement of MCPyV in the pathogenesis of respiratory disorders.
Comparison of Ergonomic Risk Analysis Methods for Working Postures of Forest Nursery Workers
Authors: YAYLI Derya , ÇALIŞKAN Erhan
Published: June 2019

The
chores of forest nursey workers are comprised of manual labor based on the
physical structure of the worker. Long term working postures repeated
throughout the shift results in strains at various levels in the body of the
worker thereby having adverse impacts on their performances. There are various
methods developed in literature for ergonomic risk assessment. The purpose of
this study was to examine the working postures of nursery workers working at
the Bayburt and Hendek forest nurseries and to analyze problematic working
postures using the ergonomic risk analysis methods of OWAS (Owako Working position Analysis System), REBA (Rapid Entire Body Assessment), and RULA (Rapid
Upper Limbs Assessment) the reliabilities of which have been proven in literature.
This result reveals that hazardous and very hazardous ratios
in working postures were 4.6%, 8%, 20% in OWAS, REBA, and RULA methods,
respectively. Based on the opinion that the method
yielding greater risks is more sensitive for eliminating the risks in the
shortest amount of time, it can be put forth that the RULA method gave more
sensitive results in comparison with the OWAS and REBA methods.
DÍA LATINOAMERICANO DEL NUTRICIONISTA
Authors: Zúniga Quesada Jeannette
Published: June 2019

El Dr. Escudero nació el 11 de agosto de 1877 en Buenos Aires. Egresó con medalla de honor de la Facultad de Ciencias Médicas, ocupó cargos importantes en el área durante más de 20 años y trabajó durante toda su vida en la planificación y ejecución de políticas de salud. Se destacó por haber sido fundador y director del Instituto Nacional de Nutrición de Argentina.
EFECTO SINÉRGICO DE LA INGESTA DE PROTEÍNAS JUNTO A CARBOHIDRATOS ASÍ COMO DE CARBOHIDRATOS SOBRE LA GLICEMIA MÁXIMA Y A LAS DOS HORAS POSTPRANDIALES
Authors: Jara Rodriguez Marjorie , Mejia Figueroa Juan Pablo , Romero Hernandez Kevin
Published: June 2019

Objetivo: Comparar la glicemia postprandial posterior a la ingesta de proteínas y la ingesta de un patrón de carbohidratos haciendo las pruebas cada 30 minutos por dos horas. Los participantes, 16 estudiantes sanos en el laboratorio de fisiología de la Universidad de Ciencias Médicas, el dia 8 de Marzo del 2018, entre las 7:00 am y las 9:00 am. Sujetos fueron sometidos a un ayuno de 10 - 14 horas, se midió la glicemia en ayunas, luego se midió la glicemia en intervalos de 30 minutos por las primeras dos horas postprandiales. De los 16 estudiantes, 6 consumieron solo carbohidratos (patrón) y 10 consumieron carbohidratos y proteínas (experimental). En los resultados experimentales no se evidencia ningún cambio significativo tanto en la concentración de glucosa en sangre como en el tiempo del pico glicémico. La concentración máxima de glucosa en sangre se da a los 30 minutos postprandiales en ambos casos, con un promedio de 139,2 mg/dL y 134,9 mg/dL para los sujetos patrón y experimental respectivamente. El estudio muestra que no hay un cambio significativo en la glicemia postprandial por la ingesta de proteína y carbohidratos.
Beneficios de Dietas Estilo Mediterráneo
Authors: Mora Campos Julio Gerardo
Published: June 2019

El concepto de dieta mediterránea se popularizó luego del estudio realizado por Angel Keys entre 1958-64 en donde comparó los hábitos alimenticios de siete países: Japón, Finlandia, Holanda, Yugoeslavia, Italia, Grecia y Estados Unidos. El estudio logro concluir que existía una menor mortalidad por enfermedad cardiovascular, con una mayor expectativa de vida en los países mediterráneos especialmente Grecia.
LOS SUEÑOS TAMBIÉN SE CUMPLEN
Authors: Chinchilla Carmona Misael
Published: June 2019

Cuando en el 2000 la universidad me hizo el honor de nombrarme Rector de esta institución, me hice el propósito que luego compartí con mi compañera la Dra. Idalia Valerio, de establecer un proceso de investigación básica importante dentro de la universidad pensando, especialmente en un principio fundamental de que una universidad sin investigación no es una universidad conceptualmente hablando. Aunque la formación de profesionales de calidad siempre ha sido la meta desde su formación como Escuela de Ciencias Médicas, le faltaba la investigación, sello indiscutible de calidad académica. Pues bien, ahí comenzamos la Dra. Valerio y yo, delantales a la cintura, manos en lavatorio a preparar tubos, placas de Petri, láminas, cubreobjetos, etc., para empezar a producir algún tipo de investigación en la UCIMED. En esos momentos, debo confesarlo, fue bastante duro el inicio puesto que inclusive la Junta Administrativa de la época en que se inició este proceso, obviamente no se creía mucho en el modelo de hacer investigación básica en la UCIMED; inclusive, por qué no decirlo, hasta se sugirió que lo que estábamos intentando tenía algo de diversión. 

A pesar de todo comenzamos aproximadamente antes del 2000 en conjunto con la Universidad de Costa Rica y específicamente con el Dr. Gustavo Gutiérrez que tenía un proyecto relacionado con un estudio genético en monos de este país. Aunque desarrollaba ese proyecto ya había empezado en la UCR, cuando asumí la Rectoría lo traspasamos en parte a esta universidad, para el cual inclusive la administración le dio el apoyo económico para seguir adelante en el mismo.
Inmunonutrición revisión bibliográfica
Authors: Quintero Graciela Layne
Published: June 2019

La nutrición y el sistema inmunológico están íntimamente relacionados y sus respuestas en cada situación están condicionadas por cada uno de ellos. Un paciente desnutrido presentará una disminución de la respuesta inmune ante las infecciones y por otra parte la respuesta inmunitaria a las infecciones conlleva producción de sustancias que tienen efectos metabólicos que aumentan los requerimientos nutricionales y por ende el estado nutricional del paciente.
Anales de la Cultura, el Turismo y el Derecho: casos de estudio
Authors: Pérez Peña Oscar Alberto
Published: June 2019

El presente trabajo refiere las relaciones existentes entre diferentes campos de estudio como son la Cultura, el Derecho y el Turismo, respecto a la gestión jurídica de los procesos culturales en el entorno turístico.  Se toman en cuenta referentes teóricos y prácticos a partir de varios casos de estudio internacionales
Motivación, Ética y Valores en examen extramuro
Authors: Peña Rosas Gloria Del Valle , Maldonado Lira Beatriz M.
Published: June 2019

La educación es una herramienta indispensable en la formación de las sociedades, ha sido desde tiempos remotos un mecanismo para definir las conductas y los estereotipos que deben regir los colectivos, que deben dar forma a las ciudades y a sus entornos. En este sentido, la educación se fundamenta en valores, con contrastes culturales y tradicionales que le dan vida a un conglomerado de raíces que conforman la educación en cada país, cada ciudad. Sin embargo, en todos los casos la educación está regida por un proceso de enseñanza-aprendizaje y a ello lleva implícito un proceso de evaluación. Ambas, tanto evaluación como enseñanza han llevado años de evolución y debate, según los entornos educativos y según las particularidades sociales de cada pueblo. En este trabajo se exponen las situaciones presentadas en una evaluación extramuro, que se llevó a cabo en una institución educativa de carácter religioso, en un grupo de estudiantes con cierto grado de preparación en el contexto académico. Los resultados arrojaron poca disposición para los estudios, falta de valores y falta de compromiso. Finalmente se presentan las conclusiones donde se evidencian las posibles razones que condujeron a los resultados encontrados.
TINJAUAN ANGGARAN SEBAGAI ALAT PERENCANAAN DAN PENGENDALIAN PADA RUMAH SAKIT UMUM DAERAH KABUPATEN BUTON
Authors: Rais Muhammad
Published: June 2019

Penelitian ini bertujuan untuk mengetahui peran penyusunan anggaran sebagai alat perencanaan dan pengendalaian pada Rumah Sakit Umum Daerah Kabupaten Buton.Metode pengumpulan data yang digunakan adalah Wawancara (Interview), Dokumentasi, Studi kepustakaan (library research). Data analisis dengan Metode deskriptif dan Metode Komparatif.Penyusunan Anggaran Rumah Sakit Umum Daerah Kabupaten Buton berfungsi sebagai alat perencanaan dan pengendalian, hal itu dapat dilihat dari laporan realisasi anggaran yang anggaran belanjanya tidak satupun mengalami penyimpangan yang tidak menguntungkan (realisasi tidak melebihi anggaran yang telah ditetapkan) sehingga penyimpangan menguntungkan ini akan menjadi penghematan dimana dalam penyusunan anggaran, Badan Pengelola Keuangan Rumah Sakit Kabupaten Buton menggunakan data dan informasi yang bersumber dari pengalaman dan juga data aktual tahun-tahun sebelumnya.
Efektivitas Kinerja Badan Penanggulangan Bencana Daerah Dalam Pengurangan Resiko Bencana Di Kota Baubau
Authors: Sadat Anwar
Published: June 2019

Dalam penelitian ini merumuskan Efektivitas Kinerja Pemerintah Daerah Dalam Penanggulangan Bencana Pada Badan Penanggulangan Bencana Daerah Kota Baubau. Penelitian ini menggunakan metode kualitatif, dengan maksud untuk mendapatkan deskripsi yang mendalam mengenai Efektivitas Kinerja Badan Penanggulangan Bencana Daerah Dalam Pengurangan Resiko Bencana di Kota Baubau.

Hasil penelitian menunjukan bahwa Efektivitas kinerja pemerintah daerah dalam penanggulangan bencana pada Badan Penanggulangan Bencana Daerah Kota Baubau suatu pencapaian hasil yang memuaskan dalam Produktifitas Aparat, Kualitas Layanan korban bencana banjir, Responsivitas dalam kemampuan aparat pada Badan Penanggulangan Bencana Daerah Kota Baubau untuk mengenali kebutuhan korban bencana, melalui tahap-tahap pra bencana, saat tanggap darurat, pasca bencana merupakan upaya Badan Penanggulangan Bencana Daerah Kota Baubau. Badan Penanggulangan Bencana Daerah Kota Baubau merupakan serangkaian kegiatan yang dilakukan untuk mengurangi atau menghilangkan risiko bencana, baik melalui pengurangan ancaman bencana  maupun kerentanan pihak yang terancam bencana dengan tanggung jawab baik Masyarakat yang terkena bencana.
Partisipasi Politik Perempuan Kota Baubau Dalam Pemilu Legislatif 2014 (Studi Di Kecamatan Murhum Kota Baubau)
Authors: Nurbaena Wa Ode Wati
Published: June 2019

Tujuan penelitian ini adalah sebagai berikut (1) Untuk mengetahui partisipasi politik perempuan di Kecamatan Murhum Kota Baubau. (2) Untuk mengetahui bentuk-bentuk partisipasi politik yang dilakukan oleh kaum perempuan dalam Pemilu Legislatif 2014 di Kecamatan Murhum Kota Baubau. (3) Untuk mengetahui faktor intern dan faktor ekstern yang mempengaruhi partisipasi politik kaum perempuan dalam Pemilu Legislatif 2014 di Kecamatan Murhum Kota Baubau.

Bentuk penelitian yang dipilih adalah penelitian kualitatif deskriptif. Sampel ditentukan menggunakan pendekatan purposive sampling. Data diperoleh melalui wawancara, observasi, telaah dokumen dan dibantu dengan table frekuensi. Analisis data dilakukan secara interaktif dan hasil penelitian disajikan dalam bentuk deskriptif.

Hasil penelitian mengenai Partisipasi Politik Perempuan Kota Baubau dalam Pemilu Legislatif 2014 (Studi Di Kecamatan Murhum Kota Baubau), maka dapat ditarik kesimpulan sebagai berikut (1) Partisipasi politik perempuan di Kecamatan Murhum masih sangat rendah. (2) Peran perempuan dalam partisipasi politik dalam pemilu legislatif 2014 belum terlaksana sesuai dengan apa yang kita harapkan. (3) Kendala-Kendala Yang Menyebabkan  Representasi  Perempuan  Di  Dewan Perwakilan Rakyat Sangatlah Rendah
Investigar para innovar en la Fundación Universitaria Católica del Norte: una aproximación reflexiva
Authors: Sánchez Upegui Alexánder Arbey , Roldán López Nelson Darío
Published: June 2019

El vocablo investigar, en su calidad de verbo (cuya acepción es ir tras las huellas o vestigios de algo —del latín vestigĭum—) es una actividad intelectual, búsqueda y creación, con sentido humano, para ampliar cada vez cada más las fronteras del conocimiento. Por su parte, innovar se vincula con acepciones como mudar, renovar, alterar las cosas (cosa como ente u objeto del pensamiento); introducir novedades en algo; proseguir la causa o actuar en ella; por último, volver algo a su anterior estado. De esta forma, tenemos que la relación entre investigación e innovación es amplia y dinámica. Un aspecto que se destaca de esta relación es su carácter causal; es decir: sin una estructura sólida y una visión a largo plazo que garantice el talento humano requerido, la continuidad en las propuestas y actividades científicas y una articulación estratégica y cooperativa entre la administración académica e investigativa, será bastante improbable innovar, cualquiera sea el significado y alcance que le demos a este término. En síntesis, la investigación es una de las principales fuentes y estrategias para generar innovación.
El contexto: dimensión viva de la praxis educativa
Authors: Roldán López Nelson Darío
Published: June 2019

Este editorial pone su foco en la categoría “el contexto en la educación”. Se aborda la reflexión de la didactización del contexto en la praxis de la enseñanza, del lado del maestro o docente, desde un enfoque aproximado de la complejidad. La observación y vinculación del contexto, a partir de la profesionalidad de quien enseña, engloba una intención educomunicativa que enriquece la enseñanza-aprendizaje. Se concluye que el contexto se hace mediaciones pedagógicas contextualizadas, al tiempo que posibilita la comprensión de la realidad vivida por el estudiante.
PERKEMBANGAN POLITIK HUKUM PERTAMBANGAN MINERAL DAN BATUBARA DAN IMPLIKASINYA BAGI MASYARAKAT HUKUM ADAT
Authors: Erika Erika
Published: June 2019

The problem of land conflicts in the territory of Ulayat Land of Customary Law Community conducted by the company as an investment actor conducting business activities in the field of mineral and coal mining and its settlement efforts can not be explained through the only normative juridical approach, but the holistic and integrative approach. Approaches known in social science, sociology, and legal anthropology can be used to explain the issue of dispute resolution based on local potential. The choice of conflict resolution of conflicts arising from unequal distribution and management of resources and unequal power and authority, to address these types of conflicts should be put forward with justice and benefit as the main objective, not the legal certainty aspect.
KEBIJAKAN KRIMINAL DALAM MENANGGULANGI KELEBIHAN KAPASITAS LEMBAGA PEMASYARAKATAN
Authors: Harefa Safaruddin
Published: June 2019

Penelitian ini bertujuan untuk mengetahui faktor-faktor yang mempengaruhi kepadatan lapas, kebijakan Lapas Wirogunan untuk menanggulangi kelebihan kapasitas Lapas serta bagaimana formulasi pidana dan pemidanaan untuk mengurangi kelebihan kapasitas di dalam Lapas. Penelitian ini menggunakan penelitian hukum normatif dan penelitian hukum empiris dengan bahan hukum primer dan sekunder. Hasil penelitian ini menunjukkan bahwa 1) Faktor-faktor yang mempengaruhi kepadatan kapasitas di dalam Lapas yaitu; Pertama, tingginya tingkat Kriminalitas dan Kedua, Kebijakan Peradilan Hukum Pidana. (2) Kebijakan yang dilakukan oleh Lapas Wirogunan ialah dengan mengoptimalkan dengan program terintegrasi di dalam Lapas. (3) Formulasi pidana dan pemidanaan yang dapat dilakukan ialah pertama merevisi KUHP yang semula berprinsip komulasi menjadi prinsip pidana yang memiliki konsep alternatif, yang kedua merubah pandangan hakim yang cenderung menjatuhkan pidana penjara menjadi adanya pidana alternative lain dalam KUHP. Ketiga, pemerintah menambah Lapas di Indonesia, sehingga formulasi ini mampu menekan adanya tindak pidana.
Friedel-Crafts approach to the one-pot synthesis of methoxy substituted thioxanthylium salts
Authors: Tanaka Kenta , Tanaka Yuta , Kishimoto Mami , Hoshino Yujiro , Honda Kiyoshi
Published: June 2019

An efficient synthesis of methoxy substituted thioxanthylium salts has been developed. The reaction of diaryl sulfides with benzoyl chlorides in the presence of TfOH smoothly proceeded to give the desired thioxanthylium salts in good yields. In their UV-vis spectra, the maximum absorption wavelengths of methoxy functionalized thioxanthylium salts were observed at around 460 nm, which show a drastic red shift compared to the parent thioxanthylium salts. The present reaction provides a versatile access to functionalized thioxanthylium salts, and therefore it constitutes a promising tool for the synthesis of biologically and photochemically active molecules.
Design and facile synthesis of defect rich C-MoS2/rGO nanosheets for enhanced lithium-sulfur battery performance
Authors: Tian Chengxiang , Wu Juwei , Ma Zheng , Li Bo , Li Pengcheng , Zu Xiaotao , xiang xia
Published: June 2019

Reliable design and fabrication of advanced electrode materials are vital for developing lithium sulfur batteries. In this contribution, we report a simple one-step hydrothermal strategy for fabrication of a C-MoS2/rGO composite with both large surface area and high porosity. Double modified defect-rich MoS2 nanosheets are successfully prepared by introducing graphene oxide (GO) and amorphous carbon. The conductibility and structural stabilization of the cathodes can be improved owing to combination between the amorphous carbon and rGO, which could also restrain the dissolution of polysulfides. After annealing at different temperatures, it is found that the C-MoS2/rGO-6-S composite annealed at 600 oC delivers noticeably enhanced the performance of lithium-sulfur batteries, with a high specific capacity of 572 mAh·g-1 at 0.2C after 550 cycles, and 551 mAh·g-1 even at 2C, much better than those of MoS2-S nanosheets (249 mAh·g-1 and 149 mAh·g-1) and C-MoS2/rGO-S composite (334 mAh·g-1 and 382 mAh·g-1). Our intended electrode design protocol and annealing process may pave the way for the construction of other high-performance metal disulphide electrode for electrochemical energy storage.