bluuebunny/crossref_metadata_2025 huggingface dataset:
Catalytic Behaviour of Ce-Doped Ni Systems Supported on Stabilized Zirconia under Dry Reforming Conditions
Authors: Al-Fatesh Ahmed Sadeq , Arafat Yasir , Ibrahim Ahmed Aidid , Kasim Samsudeen Olajide , Alharthi Abdulrahman , Fakeeha Anis Hamza , Abasaeed Ahmed Elhag , Bonura Giuseppe , Frusteri Francesco
Published: May 2019

Ni supported on bare and modified ZrO2 samples were synthesized using the incipient wet impregnation method. The t-ZrO2 phase was stabilized by incorporation of La2O3 into ZrO2. Moreover, the influence of CeO2-doping on the physico-chemical and catalytic properties under CO2 reforming conditions was probed. The characterization data of the investigated catalysts were obtained by using XRD, CO2/H2-TPD, BET, TPR, TPO, TGA, XPS and TEM characterization techniques. In the pristine Ni/Zr catalyst, the t-ZrO2 phase transformed into the monoclinic phase. However, upon support modification by La2O3, significant effects on the physicochemical properties were observed due to the monoclinic-to-tetragonal ZrO2 phase transformation also affecting the catalytic activity. As a result, superior activity on the La2O3 modified Ni/Zr catalyst was achieved, while no relevant change in the surface properties and activity of the catalysts was detected after doping by CeO2. The peculiar behavior of the Ni/La-ZrO2 sample was related to higher dispersion of the active phase, with a more pronounced stabilization of the t-ZrO2 phase.
Integrative Analysis of the Wheat PHT1 Gene Family Reveals A Novel Member Involved in Arbuscular Mycorrhizal Phosphate Transport and Immunity
Authors: Zhang Yi , Hu Lizong , Yu Deshui , Xu Kedong , Zhang Ju , Li Xiaoli , Wang Pengfei , Chen Guo , Liu Zhihui , Peng Chunfeng , Li Chengwei , Guo Tiancai
Published: May 2019

Phosphorus (P) deficiency is one of the main growth-limiting factors for plants. However, arbuscular mycorrhizal (AM) symbiosis can significantly promote P uptake. Generally, PHT1 transporters play key roles in plants’ P uptake, and thus, PHT1 genes have been investigated in some plants, but the regulation and functions of these genes in wheat (TaPHT1) during AM symbiosis have not been studied in depth. Therefore, a comprehensive analysis of TaPHT1 genes was performed, including sequence, phylogeny, cis-elements, expression, subcellular localization and functions, to elucidate their roles in AM-associated phosphate transport and immunity. In total, 35 TaPHT1s were identified in the latest high-quality bread wheat genome, 34 of which were unevenly distributed on 13 chromosomes, and divided into five groups. Sequence analysis indicated that there are 11 types of motif architectures and five types of exon-intron structures in the TaPHT1 family. Duplication mode analysis indicated that the TaPHT1 family has expanded mainly through segmental and tandem duplication events, and that all duplicated gene pairs have been under purifying selection. Transcription analysis of the 35 TaPHT1s revealed that not only known the mycorrhizal-specific genes TaPht-myc, TaPT15-4B (TaPT11) and TaPT19-4D (TaPT10), but also four novel mycorrhizal-specific/inducible genes (TaPT3-2D, TaPT11-4A, TaPT29-6A, and TaPT31-7A) are highly up-regulated in AM wheat roots. Furthermore, the mycorrhizal-specific/inducible genes are significantly induced in wheat roots at different stages of infection by colonizing fungi. Transient Agrobacterium tumefaciens-mediated transformation expression in onion epidermal cells showed that TaPT29-6A is a membrane-localized protein. In contrast to other AM-specific/inducible PHT1 genes, TaPT29-6A is apparently required for the symbiotic and direct Pi pathway. TaPT29-6A-silenced lines exhibited reduced levels of AM fungal colonization and arbuscules, but increased susceptibility to biotrophic, hemi-biotrophic and necrotrophic pathogens. In conclusion, TaPT29-6A was not only essential for the AM symbiosis, but also played vital roles in immunity.
Compounds with Polar Metallic Bonding
Authors: Hoch Constantin
Published: May 2019

Recently, I witnessed a discussion amongst solid state chemists whether the term polar intermetallic bonding was necessary or dispensable, whether a conceptual discernation of this special class of intermetallic compounds was indicated or spurious [...]
A Study on Visual Representations for Active Plant Wall Data Analysis
Authors: Akram Hassan Kahin , Liu Yu , Besançon Lonni , Johansson Jimmy , Rönnberg Niklas
Published: May 2019

The indoor climate is closely related to human health, well-being, and comfort. Thus, an understanding of the indoor climate is vital. One way to improve the indoor climates is to place an aesthetically pleasing active plant wall in the environment. By collecting data using sensors placed in and around the plant wall both the indoor climate and the status of the plant wall can be monitored and analyzed. This manuscript presents a user study with domain experts in this field with a focus on the representation of such data. The experts explored this data with a Line graph, a Horizon graph, and a Stacked area graph to better understand the status of the active plant wall and the indoor climate. Qualitative measures were collected with Think-aloud protocol and semi-structured interviews. The study resulted in four categories of analysis tasks: Overview, Detail, Perception, and Complexity. The Line graph was found to be preferred for use in providing an overview, and the Horizon graph for detailed analysis, revealing patterns and showing discernible trends, while the Stacked area graph was generally not preferred. Based on these findings, directions for future research are discussed and formulated. The results and future directions of this research can facilitate the analysis of multivariate temporal data, both for domain users and visualization researchers.
A Concept Tree of Accounting Theory: (Re)Design for the Curriculum Development
Authors: Zhou Yining
Published: May 2019

This study contributes to both accounting and concept mapping literature through the depiction of a concept tree based on the Accounting Theory curriculum, which has undergone recent and rapid expansion of its knowledge and has hence outgrown the previous limited mapping work. This tree-shaped concept map not only accounts for a particular mapping approach little studied and scarcely exemplified in literature, but also signifies a creative model that graphically interprets the sophisticated system of accounting theories and concepts as well as their complex interrelationships. In teaching practices, this concept tree has attested a potential to promote curriculum development, as evidenced in sequence and cohesion of topics and by being linked meaningfully to exam design.
VLSI Implementation of Restricted Coulomb Energy Neural Network with Improved Learning Scheme
Authors: Cho Jaechan , Jung Yongchul , Lee Seongjoo , Jung Yunho
Published: May 2019

This paper proposes a restricted coulomb energy neural network (RCE-NN) with an improved learning algorithm and presents the hardware architecture design and VLSI implementation results. The learning algorithm of the existing RCE-NN applies an inefficient radius adjustment, such as learning all neurons at the same radius or reducing the radius excessively in the learning process. Moreover, since the reliability of eliminating unnecessary neurons is estimated without considering the activation region of each neuron, it is inaccurate and leaves unnecessary neurons extant. To overcome this problem, the proposed learning algorithm divides each neuron region in the learning process and measures the reliability with different factors for each region. In addition, it applies a process of gradual radius reduction by a pre-defined reduction rate. In performance evaluations using two datasets, RCE-NN with the proposed learning algorithm showed high recognition accuracy with fewer neurons compared to existing RCE-NNs. The proposed RCE-NN processor was implemented with 197.8K logic gates in 0.535 mm 2 using a 55 nm CMOS process and operated at the clock frequency of 150 MHz.
Correlation Analysis of Lignin Accumulation and Expression of Key Genes Involved in Lignin Biosynthesis of Ramie (Boehmeria nivea)
Authors: Tang Yinghong , Liu Fang , Xing Hucheng , Mao Kaiquan , Chen Guo , Guo Qingquan , Chen Jianrong
Published: May 2019

The phloem of the stem of ramie (Boehmeria nivea) is an important source of natural fiber for the textile industry. However, the lignin content in the phloem affects the quality of ramie phloem fiber. In this study, the lignin content and related key gene expression levels were analyzed in the phloem and xylem at different developmental periods. The results showed that the relative expression levels of lignin synthesis-related key genes in the xylem and phloem of the stem gradually decreased from the fast-growing period to the late maturation period, but the corresponding lignin content increased significantly. However, the relative expression levels of a few genes were the highest during the maturation period. During all three periods, the lignin content in ramie stems was positively correlated with the expression of genes, including PAL, C4H and 4CL1 in the phenylpropanoid pathway, F5H and CCoAOMT in the lignin-specific synthetic pathway, and CAD in the downstream pathway of lignin synthesis, but the lignin content was negatively correlated with the expression of genes including 4CL3 in the phenylpropanoid pathway and UDP-GT in the shunt pathway of lignin monomer synthesis. The ramie 4CL3 recombinant protein prefers cinnamic acid as a substrate during catalysis, and it negatively regulates lignin synthesis. It is speculated that ramie 4CL3 is mainly involved in the synthesis of ramie flavonoid compounds, and that 4CL1 is mainly involved in lignin synthesis.
Expansion and Functional Divergence of Inositol Polyphosphate 5-Phosphatases in Angiosperms
Authors: Zhang Zaibao , Li Yuting , Luo Zhaoyi , Kong Shuwei , Zhao Yilin , Zhang Chi , Zhang Wei , Yuan Hongyu , Cheng Lin
Published: May 2019

Inositol polyphosphate 5-phosphatase (5PTase), a key enzyme that hydrolyzes the 5′ position of the inositol ring, has essential functions in growth, development, and stress responses in plants, yeasts, and animals. However, the evolutionary history and patterns of 5PTases have not been examined systematically. Here, we report a comprehensive molecular evolutionary analysis of the 5PTase gene family and define four groups. These four groups are different from former classifications, which were based on in vitro substrate specificity. Most orthologous groups appear to be conserved as single or low-copy genes in all lineages in Groups II–IV, whereas 5PTase genes in Group I underwent several duplication events in angiosperm, resulting in multiple gene copies. Whole-genome duplication (WGD) was the main mechanism for 5PTase duplications in angiosperm. Plant 5PTases have more members than that of animals, and most plant 5PTase genes appear to have evolved under strong purifying selection. The paralogs have diverged in substrate specificity and expression pattern, showing evidence of selection pressure. Meanwhile, the increase in 5PTases and divergences in sequence, expression, and substrate might have contributed to the divergent functions of 5PTase genes, allowing the angiosperms to successfully adapt to a great number of ecological niches.
Options for Fertility Treatments for Trans Women in Germany
Authors: Schneider Florian , Scheffer Bettina , Dabel Jennifer , Heckmann Laura , Schlatt Stefan , Kliesch Sabine , Neuhaus Nina
Published: May 2019

Fertility preservation in trans women is a crucial but thus far neglected component in the gender confirming treatment in Germany. It is difficult for trans women to access reproductive health care because centers offering treatment, psychological guidance, gender confirming surgery, as well as reproductive health services are scarce in Germany. Legal, social, or financial issues as well as individual patient comorbidities prevent trans women from receiving appropriate counselling. This review provides an overview on options of fertility preservation in trans women. We consider recent publications on testicular regression at the time of gender confirming surgery demonstrating presence of sperm or at least spermatogonia in the majority of tissues. This may open options for cryopreservation of sperm or testicular stem cells in trans women even at the final stage of transition. Hence, standardized urological procedures (i.e., sperm cryopreservation after masturbation or sperm extraction from the testicular tissue) and experimental approaches (cryopreservation of testicular tissue with undifferentiated spermatogonia) can be offered best at the initiation but also during the gender confirming process. However, counselling early in the gender confirming process increases the chances of fertility preservation because gender confirming hormone therapy has an impact on spermatogenesis.
Influence of Niobium or Molybdenum Addition on Microstructure and Tensile Properties of Nickel-Chromium Alloys
Authors: Souza Marisa Aparecida de , Fiorin Bárbara de Oliveira , Hashimoto Tomaz Manabu , Rosifini Ana Paula , Nunes Carlos Angelo , Baptista Carlos Antônio Reis Pereira , Ramos Alfeu Saraiva
Published: May 2019

This work discusses on influence of niobium or molybdenum addition on microstructure and tensile properties of NiCr-based dental alloys. In this regard, the Ni-24Cr-8Nb, Ni-22Cr-10Nb and Ni-20Cr-12Nb (wt. %) alloys produced by arc melting process. To compare the typical Ni-22Cr-10Mo dental alloy was also produced. These ternary alloys were analyzed by chemical analyses, X-ray diffraction (XRD), scanning electron microscopy (SEM), electron dispersive spectrometry (EDS), thermogravimetric analysis (TG), Vickers hardness and tensile tests. Although the mass losses of the samples during arc melting, the optical emission spectrometry showed that the initial compositions were kept. The Ni-22Cr-10Mo alloy produced a matrix of Niss (ss—solid solution), whereas Ni3Nb disperse in a Niss matrix was also identified in Ni-Cr-Nb alloys. Excepting for the Ni-22Cr-10Nb alloy with mass gain of 0.23%, the as-cast Ni-Cr alloys presented mass gains close to 0.4% after heating up to 1000 °C under synthetic airflow. The hardness values, the modulus of elasticity, yield strength and ultimate tensile strength have enhanced, whereas the ductility was reduced with increasing niobium addition of up to 12 wt.-%.The Ni-22Cr-10Mo alloy presented an intergranular fracture mechanism containing deep dimples and quasi-cleavage planes, whereas the shallow dimples were identified on fracture surface of the as-cast Nb-richer Ni-Cr alloys due to the presence of higher Ni3Nb amounts.
Effect of Temperature on the Corrosion Behavior of Biodegradable AZ31B Magnesium Alloy in Ringer’s Physiological Solution
Authors: Feliu Sebastian , Veleva Lucien , García-Galvan Federico
Published: May 2019

In this work, the corrosion behaviors of the AZ31B alloy in Ringer’s solution at 20 °C and 37 °C were compared over four days to better understand the influence of temperature and immersion time on corrosion rate. The corrosion products on the surfaces of the AZ31B alloys were examined by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). Electrochemical impedance spectroscopy (EIS) provided information about the protective properties of the corrosion layers. A significant acceleration in corrosion rate with increasing temperature was measured using mass loss and evolved hydrogen methods. This temperature effect was directly related to the changes in chemical composition and thickness of the Al-rich corrosion layer formed on the surface of the AZ31B alloy. At 20 °C, the presence of a thick (micrometer scale) Al-rich corrosion layer on the surface reduced the corrosion rate in Ringer’s solution over time. At 37 °C, the incorporation of additional Mg and Al compounds containing Cl into the Al-rich corrosion layer was observed in the early stages of exposure to Ringer’s solution. At 37 °C, a significant decrease in the thickness of this corrosion layer was noted after four days.
In Situ Effectiveness of Alkaline and Cementitious Amendments to Stabilize Oxidized Acid-Generating Tailings
Authors: Elghali Abdellatif , Benzaazoua Mostafa , Bussière Bruno , Genty Thomas
Published: May 2019

This study investigates the effectiveness of alkaline and cementitious additives in the in situ stabilization of localized acid-generating tailings from a closed gold mine in Abitibi–Témiscamingue, Québec (Eagle/Telbel mine site). Five field cells (including one control) were constructed and equipped with mechanisms for collecting vertical water infiltration and surface runoff. The five cells included: (C1) Control cell; (C2) 5 wt % limestone amendment; (C3) 10 wt % limestone amendment; (C4) 5 wt % half ordinary Portland cement and half fly ash amendment; and (C5) 5 wt % ordinary Portland cement amendment. The control cell showed an acidic behavior (pH < 4.5) with variable concentrations of Fe, Al, Zn, and Cu. The amendments were used to neutralize the acidic leachates and decrease dissolved metal concentrations. Leachates from surface runoff samples of amended cells were less loaded with metals compared to samples of vertical infiltration. All amendment formulations increased the pH of the leachates from approximately 4 to circumneutral values. Furthermore, metal and metalloid concentrations were greatly limited, except for Cr and As for the carbonate-based amendments. Metal(-oid) stabilization was successfully achieved using the different amendment formulations, with the exception of C2, which still released As.
Functional Fragments of AIMP1-Derived Peptide (AdP) and Optimized Hydrosol for Their Topical Deposition by Box-Behnken Design
Authors: Lee Jeong-Jun , Han Young-Min , Kwon Tae-Wan , Kim Dong , Lee Han , Jung Woo , Kim Jina , Kang Sujin , Kim Sang , Cho Cheong-Weon , Lee Kyeong-Ryoon , Kim Dae-Duk , Park Min , Lee Jae-Young
Published: May 2019

Aminoacyl-tRNA synthetase complex-interacting multifunctional protein 1 (AIMP1)-derived peptide (AdP) has been developed as a cosmeceutical ingredient for skin anti-aging given its fibroblast-activating (FA) and melanocyte-inhibiting (MI) functions. However, a suitable strategy for the topical delivery of AdP was required due to its low-permeable properties. In this study, FA and MI domains of AdP (FA-AdP and MI-AdP, respectively) were determined by functional domain mapping, where the activities of several fragments of AdP on fibroblast and melanocyte were tested, and a hydrosol-based topical delivery system for these AdP fragments was prepared. The excipient composition of the hydrosol was optimized to maximize the viscosity and drying rate by using Box-Behnken design. The artificial skin deposition of FA-AdP-loaded hydrosol was evaluated using Keshary-Chien diffusion cells equipped with Strat-M membrane (STM). The quantification of the fluorescent dye-tagged FA-AdP in STM was carried out by near-infrared fluorescence imaging. The optimized hydrosol showed 127-fold higher peptide deposition in STM than free FA-AdP (p < 0.05). This work suggests that FA- and MI-AdP are active-domains for anti-wrinkle and whitening activities, respectively, and the hydrosol could be used as a promising cosmetic formulation for the delivery of AdPs to the skin.
Performance of Polyester-Based Electrospun Scaffolds under In Vitro Hydrolytic Conditions: From Short-Term to Long-Term Applications
Authors: Gil-Castell Oscar , Badia José David , Bou Jordi , Ribes-Greus Amparo
Published: May 2019

The evaluation of the performance of polyesters under in vitro physiologic conditions is essential to design scaffolds with an adequate lifespan for a given application. In this line, the degradation-durability patterns of poly(lactide-co-glycolide) (PLGA), polydioxanone (PDO), polycaprolactone (PCL) and polyhydroxybutyrate (PHB) scaffolds were monitored and compared giving, as a result, a basis for the specific design of scaffolds from short-term to long-term applications. For this purpose, they were immersed in ultra-pure water and phosphate buffer solution (PBS) at 37 °C. The scaffolds for short-time applications were PLGA and PDO, in which the molar mass diminished down to 20% in a 20–30 days lifespan. While PDO developed crystallinity that prevented the geometry of the fibres, those of PLGA coalesced and collapsed. The scaffolds for long-term applications were PCL and PHB, in which the molar mass followed a progressive decrease, reaching values of 10% for PCL and almost 50% for PHB after 650 days of immersion. This resistant pattern was mainly ascribed to the stability of the crystalline domains of the fibres, in which the diameters remained almost unaffected. From the perspective of an adequate balance between the durability and degradation, this study may serve technologists as a reference point to design polyester-based scaffolds for biomedical applications.
Fractal Structure in Gauge Fields
Authors: Deppman Airton , Megías Eugenio
Published: May 2019

In this work, we investigate fractal properties in Yang–Mills fields, in particular their Hausdorff fractal dimension. Fractal properties of quantum chromodynamics (QCD) have been suggested as the origin of power-law distributions in high energy collisions, as well as of non-extensive properties that have been observed experimentally. The fractal dimension obtained here can be calculated directly from the properties of the field theory.
Impact of Foliar Fertilization on the Content of Silicon and Macronutrients in Sugar Beet
Authors: Artyszak Arkadiusz , Gozdowski Dariusz , Kucińska Katarzyna
Published: May 2019

The present study was conducted to assess the effect of various multinutrient foliar fertilization treatments on nutrient accumulation in the roots and leaves of sugar beet. The field experiment was performed in two growing seasons (2013 and 2014) in the southeastern region of Poland. The experiment was conducted as a randomized block design with four replications. To determine the content of the selected nutrients (Si, N, P, K, Mg, and Ca), samples of leaves and roots were collected during harvest. Fertilization treatments applied on the plants’ leaves affected the silicon (Si) content in the roots of sugar beet and the total Si uptake. Moreover, foliar fertilization had a significant effect on the P content in the leaves and the N and K contents in the roots. The Si content in the sugar beet leaves and roots ranged from 0.55 to 1.97 g kg−1 dry matter (d. m.) and from 0.49 to 1.59 g kg−1 d. m., respectively. The total Si uptake ranged from 20.3 to 46.7 kg ha−1. Most of the Si content taken up with each fertilization variant was accumulated in the roots. The yield of pure sugar was not correlated with the Si content in the leaves and roots.
‘A Shocking State of Domestic Unhappiness’: Male Victims of Female Violence and the Courts in Late Nineteenth Century Stafford
Authors: Turner Jo
Published: May 2019

Instances where men were the victims of female violence in the past are very difficult to explore, especially when the violence took place in a domestic setting. There is now a notable body of work on violence in the nineteenth century but none that looks specifically at male victims of violence where there was a female perpetrator, and their treatment by the courts. This article goes some way in filling that gap by using data collected in researching female offenders at the end of the nineteenth century in Stafford. It argues that, as with violence where there was a female victim and female perpetrator, the courts and the press were similarly unconcerned and somewhat dismissive of female violence towards men in a domestic setting, thus being unsympathetic towards male victims of female violence.
Analysis of Psychometric Properties and Validation of the Personal Learning Environments Questionnaire (PLE) and Social Integration of Unaccompanied Foreign Minors (MENA)
Authors: Martínez-Martínez Asunción , Olmos-Gómez María del Carmen , Tomé-Fernández María , Olmedo-Moreno Eva María
Published: May 2019

Background: The aim of the present study was to validate and develop the dimensions of the Personal Learning Environments (PLE) questionnaire with regards to the social integration of unaccompanied foreign minors (MENA), in addition to analyzing its psychometric properties. Methods: This study was conducted using an expert panel and exploratory techniques in a population of unaccompanied foreign minors (referred to hereon as MENA). The sample used for the validation was formed of 250 MENA aged between 13 and 17 years, with 206 (83.6%) being male and 41 (16.4%) being female. An expert panel was formed including 10 scholars of Education Sciences. The panel identified four dimensions, which were confirmed through exploratory factorial analysis conducted using the program called FACTOR Analysis (Lorenzo-Seva and Ferrando, 2006). Results: The results indicate that the PLE questionnaire provides reliable dimensions at the level α = 0.902. Examination of Pearson correlations identified significant values (p < 0.01) for almost all dimensions, with the highest value being produced for the association between the dimensions of communication and social interaction (CIS) and planning and management of learning (r = 0.641). Conclusions: From this study, it is concluded that the results of the study and the validation of the PLE in MENA populations through the four identified dimensions are valid and reliable for enabling multi-dimensional analyses to be carried out.
ESTABLECIMIENTO DE ESPECIFICACIONES PARA UN ESTANDAR E-LEARNING EN LA UNIVERSIDAD DEL QUINDÍO
Authors: Carmona Suárez Edgar Javier , Rodríguez Salinas Elizabeth
Published: May 2019

El aumento en la oferta de cursos virtuales es solución para varios sectores de la población, dado que permite estudiar de manera asincrónica lo cual significa que no tendrá que asistir a ningún lugar para recibir la capacitación, rompiendo así las barreras de espacio y tiempo, cada estudiante aprende a su propio ritmo con soporte y control de un profesor capacitado para ello. El crecimiento en la oferta virtual, en muchas instituciones surge de iniciativas individuales, es desordenado y en ocasiones caótico, lo que exige centrar la atención en nuevos problemas. Uno de ellos es la falta de unidad de criterio de los espacios académicos en una misma universidad o incluso en un mismo programa. Esta investigación se propuso inicialmente hacer un estudio de cursos virtuales de la Universidad del Quindío y, a la luz de estándares internacionales en E-learning, generar un conjunto de especificaciones que propicien la normalización y estandarización adaptadas a las necesidades regionales, para ello se utilizó la técnica de investigación etnográfica y de Investigación Acción Participación (IAP). Se centró la atención en los aspectos técnicos, comunicativos, administrativos y pedagógicos de la producción de cursos virtuales.
PROPERTIES OF COMPOSITIONAL MATERIALS BASED ON THE MIXTURES OF EPOXY POLYMERS AND OLIGOSULPHONES. PART 2. STATIC AND DYNAMIC RELAXATION PROPERTIES
Authors: Кочергин Ю. , Kochergin Yuriy , Григоренко Т. , Grigorenko Tatyana , Золотарева В. , Zolotareva Viktoriya
Published: May 2019

The effect of low-molecular polysulfones (oligosulfones) on the static and dynamic relaxation properties of epoxy polymers based on industrial resin ED-20 is studied. It is established that the modification of oligosulfones with terminal carboxyl, phenolic groups and a molecular weight from 1200 to 44500 leads to the formation of epoxy systems with higher performance in terms of development of static processes of creep and stress relaxation. It is demonstrated that the dynamic shear modulus increases with the introduction of the modifier. The magnitude of this effect is proportional to the molecular weight of oligosulfones. The intensities of the high-temperature α-transition at 390 K and the low-temperature β-transition at 208 K decrease with the introduction of the modifier. The improvement of the relaxation properties is associated with an increase in the density of the chemical grid of the epoxy matrix with the introduction of modifiers, its saturation with more rigid and heat-resistant component and the formation of additional intermolecular bonds between the components of the system
Problems of Adequacy of the Model Hypo Gravity of the Moon and Mars
Authors: Akulov V.A. , Balakin V.L.
Published: May 2019

The methodology of indirect assessing the adequacy of the model hypo gravity of the Moon and Mars is proposed. The urgency of the problem is due to the tasks set in the national programs of deep space exploration (expeditions to planets) of a number of countries, the lack of the possibility of applying direct methods for assessing adequacy and expanding the scale of gravity therapy (treatment of ischemia). The short-radius centrifuges and inclined planes, that is, devices differing in the principle of action, were chosen as generators of hypo gravity what is important for indirect assessing the similarities and differences of models and real conditions. Earth gravity was chosen as the standard. The results of the experiments were compared with the regularities of hydromechanics and generalized by regression analysis methods. It has been established that the effect of hypo gravity and weightlessness on human peripheral hemodynamics is largely identical.
MUTU PELAYANAN DAN KOMUNIKASI TERAUPETIK YANG BAIK MENINGKATKAN KEPUASAN PASIEN PENGGUNA BPJS KESEHATAN DI RSI NU DEMAK
Authors: Wulandari Dyah Ayu , Nadhifah Nadhifah
Published: May 2019

Berdasarkan data jumlah pasien rawat inap di RS Islam Nahdlatul Ulama Demak yang menggunakan BPJS Pasien kelas 3 pada tahun 2014 sebanyak 1.117 pasien. Pada tahun 2015 mengalami peningkatan menjadi 2.032 pasien. Penelitian ini bertujuan untuk mengetahui hubungan mutu pelayanan dan komunikasi terapeutik tenaga kesehatan dengan tingkat kepuasan pasien kelas III rawat inap pengguna BPJS Kesehatan. Desain penelitian menggunakan pendekatan cross sectional. Populasi pasien peserta BPJS Kesehatan yang dirawat di Instalasi Rawat Inap Kelas III estimasi / rata-rata dari bulan Januari sampai dengan Agustus 2016 berjumlah 95 pasien. Sampel dalam penelitian ini sebanyak 77 responden. Teknik pengambilan sampel menggunakan accidental sampling. Hasil Penelitian  yaitu ada hubungan mutu pelayanan tenaga kesehatan dengan tingkat kepuasan pasien kelas III rawat inap pengguna BPJS Kesehatan. Ada hubungan komunikasi terapeutik tenaga kesehatan dengan tingkat kepuasan pasien kelas III pengguna BPJS Kesehatan. Saran bagi instansi kesehatan agar meningkatkan mutu pelayanan dan komunikasi terapeutik tenaga kesehatan pasien kelas III rawat inap pengguna BPJS kesehatan Di RSI Nahdlatul Ulama Demak dengan memberikan pelatihan / workshop kepada tenaga kesehatan secara menyeluruh sehingga semua tenaga kesehatan menjadi lebih tahu tentang cara meningkatkan mutu pelayanan di RS tersebut.  Kata kunci: Mutu pelayanan; komunikasi terapeutik; tingkat kepuasan pasien  QUALITY OF SERVICE AND GOOD THERAPEUTIC COMMUNICATIONS IMPROVE THE SATISFACTION OF  HEALTH BPJS PATIENTS IN RSI NU DEMAK ABSTRACT Based on the data on the number of inpatients in hospital Nahdlatul Ulama Islam Demak BPJS Patients who use grade 3 in 2014 as many as 1,117 patients. In 2015 increased to 2,032 patients.  To determine the correlation Service Quality and Therapeutic Communication Health Workers With Patient Satisfaction Level Class III Inpatient Users BPJS. Design correlation with research using cross sectional approach. The patient population treated BPJS participants in Inpatient Class III estimated / average from January to August 2016 amounted to 95 patients. The sample in this research is class III inpatients users BPJS total of 77 respondents. The sampling technique uses accidental sampling. There is a correlation between quality of service and patient satisfaction level III class inpatient BPJS users. There is correlation between communication therapeutic and patient satisfaction level grade III users BPJS. Health institutions in order to improve the quality of care and therapeutic communication of health personnel of class III inpatient users health BPJS In RSI Nahdlatul Ulama Demak by providing training / workshop for health workers so completely that all health professionals become more knowledgeable about how to improve the quality of service in the hospital. Keywords: Quality of service; therapeutic communication;  patient satisfaction
PENYEBAB KERENTANAN HAMIL DILUAR NIKAH PADA REMAJA
Authors: Marta Eka Seba
Published: May 2019

World Health Organization (WHO) menyatakan bahwa sekitar 16 juta perempuan berusia 15-19 tahun melakukan hubungan seksual pranikah sekitar 14% dari kejadian aborsi tidak aman. Di Indonesia frekuensi terbesar remaja yang mengalami kehamilan yang tidak diinginkan sebanyak 58,5% berada pada umur 15-19 tahun dan rata-rata 19 tahun remaja telah melakukan aborsi. Kelompok 15-19 wanita telah melakukan hubungan seksual sebelum menikah sebesar 0,7% dan pada pria sebesar 4,5%. Tujuan penelitian adalah mengetahui hubungan pengetahuan dan sikap remaja putri dengan kerentanan hamil diluar nikah SMA Padang Tahun 2015.Jenis penelitian adalah analitik pendekatan cross sectional. Populasi 47 orang dengan tekhnik total sampling. Analisa dilakukan dengan univariat dan bivariat menggunakan statistik chi-square. Hasil penelitian diperoleh bahwa, kerentaan hamil diluar nikah (59,6%), pengetahuan kurang (53,2%), sikap kurang baik (66%).  Hasil uji statistic menggunakan uji chi-square didapatkan hasil bahwa terdapat hubungan yang bermakna antara pengetahuan (p=0,002) dan sikap (p=0,000) dengan kerentanan hamil diluar nikah. Berdasarkan hasil penelitian, disimpulkan bahwa terdapat hubungan bermakna terhadap pengetahuan dan sikap remaja terhadap kerentanan hamil diluar nikah . Untuk itu diharapkan kepada remaja agar dapat meningkat pengetahuan mereka, sehingga dapat mempengaruhi sikap remaja dalam melakukan tindakan.Kata Kunci : Hamil Luar Nikah ; Pengetahuan ; Sikap
AKUPRESURE SANYINJIAO POINT MAMPU MENURUNKAN INTENSITAS NYERI DISMENORHEA PRIMER
Authors: Wijayanti Heni , Selviana Selviana
Published: May 2019

Dismenore adalah rasa sakit yang dirasakan oleh wanita ketika mesntruasi. Dismenore disebabkan oleh pelepasan berlebihan prostaglandin yaitu prostaglandin F2 alfa dari sel endometrium uterus. Banyak pengobatan dismenore yang telah berkembang di masyarakat baik terapi farmakologis maupun terapi non-farmakologis.Salah satu terapi non-farmakologis adalah akupresur.Akupresur adalah penggunaan teknik sentuhan / kontak untuk menyeimbangkan saluran energi dalam tubuh atau Qi.Sanyinjiao Point adalah salah satu titik acupoint atau titik pertemuan limpa, hati dan saluran ginjal yang terletak dilimpa meridian.Tujuan : Mengetahui pengaruh Akupresur Terapi Sanyinjiao Point Terhadap Intensitas Nyeri Dismenore Primer di SMAN 11 Semarang.Metode Penelitian : Desain penelitian ini menggunakan Quasi Eksperiment dengan one group pre-test – post-test Design, populasi remaja putri yang mengalami dismenore sebanyak 35 orang. Teknik Sampling yang digunakan adalah accidental. Hasil Penelitian : Berdasarkan hasil penelitian 35 responden yang mengalami nyeri dismenorea pre intervensi dengan terapi akupresure Sanyinjiao Point mengalami nyeri berat 20 (57,1%) responden dengan nilai rata-rata 3,57 dan post intervensi hampir seluruhnya adalah nyeri sedang sebanyak 21 (61.1%) responden dengan nilai rata-rata 2.71 dengan p = value 0,000 (p<0,05). Simpulan: Ada pengaruh terapi akupresur Sanyinjiao Point terhadap intensitas nyeri dismenorea primer di SMAN 11 Semarang. Kata kunci : Akupresure Sanyinjiao Point; Dismenorea
TEKHNIK MENYUSUI YANG BAIK DALAM MENURUNKAN KEJADIAN CRECKED NIPPLE
Authors: Evayanti Arni
Published: May 2019

Masalah yang sering terjadi pada ibu menyusui adalah teknik menyusui yang tidak benar sehingga mengakibatkan crecked nipple (lecet puting susu) dimana bayi tidak menyusu sampai ke areola. Ibu perlu mengetahui teknik menyusui yang baik dan benar untuk mendukung keberhasilan menyusui. Salah satu penyebab kegagalan menyusui adalah disebabkan karena kesalahan ibu dalam memposisikan dan meletakkan bayi saat menyusui. Posisi menyusui dapat dilakukan dengan beberapa posisi. Tujuan penelitian adalah untuk mengetahui hubungan teknik menyusui dengan kejadian puting susu lecet pada ibu nifas di RSU Dewi Sartika  Kota Kendari tahun 2017.Jenis penelitian yang digunakan adalah penelitian analitik dengan rancangan cross sectional. Populasi adalah semua ibu nifas yang memiliki bayi baru lahir di RSU Dewi Sartika Kota Kendari periode Januari -­ April tahun 2017 dengan jumlahsampel sebanyak 46 orang.Instrumen yang digunakan adalah kuesioner. Ada hubungan antara teknik menyusui dengan kejadian puting susu lecet (p = 0,000).. Responden dengan teknik menyusui baik mempunyai kemungkinan 6,85 kali untuk tidak mengalami puting susu lecet dibandingkan ibu dengan teknik menyusui kurang (RP = 6,85 CI 95% = 1,41-33,28). Diharapkan pada petugas kesehatan dapat meningkatkan program konseling dan penyuluhan tentang teknik menyusui yang benar Kata Kunci : Cracked nipple (Puting Susu lecet); Tehnik Menyusui
The vehicle impact on the corrugated steel shell in soil-steel structures
Authors: Machelski Czesław
Published: May 2019

The paper presents the results of soil-steel structures tests under road and rail vehicles loads, which change their position alongthe track. Quasi static loads are considered in both stepping and continuous measurement method (with minimum travel speed). The impact of dynamic loads from vehicles as a function of vehicle speed was analyzed. Heavy, low-speed driving rides and as a separate group the passage of passenger trains in high speed journeys were con-si-dered. In this cases numerical simulations are performed using com-plex models of soil-steel structures. The specificity (difference) of dynamic effects from dynamic loads of rolling stock on soil-steel structures in relation to classic steel bridges is specified in the paper. The present-ed results from tests shows the favorable interaction of the railway tracks and substructures with the corrugated steel shell in the backfi lling as in the railway embankments.
The acoustic specificity of steel-railway bridges
Authors: Janas Lucjan
Published: May 2019

In the paper, the acoustic effects in the vicinity of four railway bridges have been studied. One of the objects has a track fastened directly to the steel deck plate, another has a deck in the form of an open grillage. The other two objects have a track situated on the ballast and various types of girders. The influence of the bridge on the level of acoustic pressure in the neighborhood of railway roads has been analyzed. General recommendations for the design of silent bridges were discussed.
Determination of the optimal curvature of the turnout diverging track for HSR using dynamic analysis
Authors: Koc Władysław , Palikowska Katarzyna
Published: May 2019

The paper presents an analytical method of identifying the curvature of the turnout diverging track consisting of sections of varying curvature. Such turnout is mainly applied on High Speed Railway. Both linear and nonlinear (polynomial) curvatures of the turnout diverging track are considered in the paper. Obtained solutions enable to assume curvature values at the beginning and end point of the geometrical layout of the turnout.The paper focus on a fundamental and unexplained so far issue connected with selection of the most favourable curvature section from the operational requirements point of view. In order to determine the optimal curvature a dynamic analysis has been carried out on the several representative cases. It has been indicated that, used in railway practice, clothoid sections with nonzero curvatures at the beginning and end points of the turnout should be verified. It has been proved that the turnout with nonlinear curvature reaching zero values at the extreme points of the geometrical layout is the most favourable.
Research quality railroad crossings with under sleepers pad
Authors: Kwiatkowska Ewelina
Published: May 2019

Research quality railroad crossings with under sleeper pad. The quality of the railway track is infl uenced by a number of factors, such as durability, reliability, swelling and cost. The article made use of impact assessment under sleepers pad (USP) on the quality of rail track. The author has presented laboratory research, computer research and dynamic study of turnouts with USP. The impact of the USP on the quality of turnouts was assessed. Research results have shown an increase in the quality of turnouts with USP.
What does the success of an airport mean and when it contributes to the regional economy?
Authors: Huderek-Glapska Sonia
Published: May 2019

Until recently airports were seen as part of infrastructure endowment of the country, and their main tasks were to ensure smooth and safe operation of airlines and passenger flow. This situation changed with the liberalization of air transport market and increasing integration and globalization of economies. Competitive environment caused the changes in the model of airport management, preferring increasingly a business approach based on economic calculation. A certain polarization in the development of airports is observed. Some airports enter the path of development and intensive growth, while others are at risk of collapse. The aim of the paper is to define the success of an airport, recognize the factors that have an impact on this success, with particular attention paid to the airlines-airport relationship management and identify the impact of an airport on the urban and regional economy. The problem is gaining importance in view of the pace of change taking place in the business environment.
Analysis of break-even points of Polish regional airports
Authors: Augustyniak Wojciech
Published: May 2019

The problematic nature of the high costs of building terrestrial aviation infrastructure does not end after the planning phase and the construction of new airspace. After the infrastructure has been commissioned, the cost of its depreciation and maintenance over the years represents a significant contribution to the cost of operating the airport. The high share of fixed costs is a direct reason for strong leverage. As a result, it is imperative to provide external financing to young airports at an early stage of their development. Owners of companies managing the above-mentioned infrastructure should be vividly concerned about the earliest possible break-even point, and consequently, the burden of direct subsidizing aviation activities in the region.
The purpose of this article is to analyze the profitability thresholds at Polish regional airports as a means to discuss possible minimum volumes and revenues that emerging airports need to achieve as they do not generate losses. The main research method is a tool based on regression functions.
Unmanned aerial vehicles as a tool to support aerodrome services
Authors: Fellner Rodasław
Published: May 2019

The aim of this paper is to show the possibility of using UAV by airport managers. With a few exceptions, there are no studies on this issue. This article is an attempt to fill these research gap. This article is based on the results of studies of the Department of Air Technologies of the Silesian University of Technology, Civil Aviation Personnel Education Centre of Central and Eastern Europe Silesian University of Technology, RPAS TEAM functioning within the Centre. It has been reported that the airport’s UAV may serve such services as: Airport Protection Service (patrolling and protecting area near aerodrome), Rescue and Fire Fighting Services (accident area monitoring), airport maintenance and infrastructure services (monitoring and inspection of buildings, pavements, roads, installations), operational departments or duty departments (better visualization of the operational situation).
International Discussions on Informed Consent in Clinical Practice and Biomedical Research
Authors: MENG Kwang-Ho
Published: May 2019

Although informed consent is a core issue of bioethics at the international level, UNESCO’s International Bioethics Committee(IBC) has claimed that the issue of consent needs further discussion and consideration in light of advances in science and technology and the unique cultural characteristics of each society. Accordingly, the IBC formed a working group in 2005 at its Twelfth Session in Tokyo to develop a detailed report on consent. This paper reviews international discussions on informed consent, focusing on the Report of the IBC’s Working Group on Informed Consent, and discusses the IBC’s efforts to promote a greater understanding of the principle of consent through its follow-up actions such as translating and publishing documents, holding conferences, and establishing the Global Ethics Observatory and Ethics Education Programs.
Detached Concern and the Professional Ethics of Doctors
Authors: KANG Myoung-Sheen
Published: May 2019

This article attempts to characterize the appropriate role of doctors in relation to their patients. A guiding question is “What is the relation between the doctor’s role and the doctor’s professional ethics?” Several authors have described the possible conflicts between role morality and common morality and have stressed the importance of the former. This article defends the idea that the appropriate attitude of doctors toward their patients is detached concern, which combines detachment and compassionate care, and represents the impersonal and personal aspects of a doctor’s role. The question of whether detached concern could ever work as an ethical prescription is also explored. The answer provided is that detached concern should function, not as a direct ethical prescription, but as an overarching attitudinal norm for medical professionals.
Ethical Requirements for the Protection of Human Subjectsin the Publication Guidelines of Nursing Journals
Authors: JEONG Ihn-Sook , UM Young-Rhan , KIM Keum-Soon
Published: May 2019

Background: All research involving human subjects, including research done in the field of nursing, should satisfy appropriate scientific and ethical requirements. Medical journals that publish the results of such research can help to ensure that researchers do satisfy these requirements by explicitly listing them as preconditions of publication in the publication guidelines (“Instructions for Authors”).
Purpose: This study was designed to examine the explicit ethical requirements for the protection of human subjects in the publication guidelines of nursing journals.
Methods: The guidelines of 19 nursing journals were reviewed to determine whether or not they required authors to a) comply with the Helsinki Declaration, b) have their projects approved by an institutional review board (RB), c) obtain informed consent, d) protect subjects’ privacy and confidentiality, and e) explicitly state any conflicts of interest.
Results: Twelve of the 19 (63.2%) journals included at least one of these ethical requirements in their publication guidelines. The most common requirement was the need to obtain informed consent, followed by the need to comply with the Helsinki Declaration. None of journals mentioned the need to have research projects approved by an IRB.
Conclusion: While the publication guidelines of nursing journals have improved in recent years, there is a need for further explicit instructions to ensure that authors satisfy all ethical requirements in conducting research on human subjects. Further studies are recommended to determine if IRB approval should be a requirement for publication in nursing journals.