bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of Older Donor Age and Cold Ischemic Time on Long-Term Outcomes of Heart Transplantation
Authors: Reich Heidi J. , Kobashigawa Jon A. , Aintablian Tamar , Ramzy Danny , Kittleson Michelle M. , Esmailian Fardad 
Published: February 2018

Using older donor hearts in cardiac transplantation may lead to inferior outcomes: older donors have more comorbidities that reduce graft quality, including coronary artery disease, hypertension, diabetes mellitus, and dyslipidemia. Shorter cold ischemic times might overcome the detrimental effect of older donor age. We examined the relationship between donor allograft age and cold ischemic time on the long-term outcomes of heart transplant recipients.
rom 1994 through 2010, surgeons at our hospital performed 745 heart transplantations. We retrospectively classified these cases by donor ages of <50 years (younger) and ≥50 years (older), then by cold ischemic times of <120 min (short), 120 to 240 min (intermediate), and >240 min (long). Endpoints included recipient and graft survival, and freedom from cardiac allograft vasculopathy, nonfatal major adverse cardiac events, and rejection.
For intermediate ischemic times, the 5-year recipient survival rate was lower when donors were older (70% vs 82.6%; P=0.02). This was also true for long ischemic times (69.8% vs 87.6%; P=0.09). For short ischemic times, we found no difference in 5-year recipient or graft survival rates (80% older vs 85.6% younger; P=0.79), in freedom from nonfatal major adverse cardiac events (83.3% vs 91.5%; P=0.46), or in freedom from cardiac allograft vasculopathy (50% vs 70.6%; P=0.66). Rejection rates were mostly similar.
Long-term graft survival in heart transplantation patients with older donor allografts may improve when cold ischemic times are shorter.
Education and Training on Introduction of Geology for Spatial Planning
Authors: Fahlevi Iwan , Sutanto Agus , Andiani Andiani , Sagala Saut Aritua Hasiholan , Kastl Sulamith 
Published: February 2018

In 2015 and 2016, the Education and Training Center of Geology, Mineral, and Coal (Pusdiklat Geologi, Mineral dan Batubara) developed training of Introduction to Geology for Spatial Planning based on a new standard curriculum. The objective of this training is to prepare the participants in dealing with basic environmental geology data and its analysis for spatial planning, including data and information management and generation, basic knowledge in the geographic information system (GIS) as well as the data interpretation and obstacles within spatial planning regarding the geological factors. Furthermore, the training is meant to introduce participants to basic methods in spatial planning processes, such as participatory planning, scenario building, and conflict analysis for geologically-induced conflicts in spatial planning. One focus of the training is the issue of disaster prevention via spatial planning. For this topic, the training refers to the Guideline for the Implementation of Geological Hazard Information in Spatial Planning (Pedoman Penyusunan Informasi Bahaya Geologi untuk Penataan Ruang) developed by the Geological Agency of Indonesia in 2015, supported by the German Development Cooperation. The approach of the new training differs from the previous standard curriculum which focused on operational and more technical procedures and scoring of geological analysis. One problem of passed training is the effectiveness of the training due to different knowledge levels of the participants, outsourced training parts and the often-passive didactic method implemented during the training. The new training is using a blended learning system, combining between e-learning in the introductory phase of the training to harmonize the participant's background and a highly interactive approach with practical elements to encourage the participants to apply theoretical knowledge directly. Moreover, the training aims to improve the participants’ capabilities to implement their knowledge to real case studies, from which they are likely to become more competent to fulfill their office tasks for sure. The new curriculum and training setup is adaptive to the current development process, using methods of gap analysis and SWOT analysis, determined contents, didactical needs, and limitations. These methods help to compare the expected performance of the new curriculum, both internally and externally, with the performance of the previous curriculum. Furthermore, the whole process is accompanied by focus group discussions to acquire feedback, reviews, and considerations for the setup and content of the changes applied to the curriculum.
The natural history of autoimmune Addison’s disease with a non-classical presentation: a case report and review of literature
Authors: Manso Jacopo , Pezzani Raffaele , Scarpa Riccardo , Gallo Nicoletta , Betterle Corrado 
Published: February 2018

Abstract
Autoimmune Addison’s disease (AAD) is the most frequent cause of adrenocortical insufficiency. The natural history of AAD usually comprises five consecutive stages with the first stage characterized by the increase of plasma renin consistent with the impairment of pars glomerulosa, which is usually the first affected layer of the adrenal cortex. We describe a 19-year-old female with Hashimoto’s thyroiditis (HT) who underwent an autoantibody screening due to having the personal and family history of other autoimmune diseases in the absence of relevant clinical manifestations. She was positive for adrenal cortex autoantibodies (ACA) and steroid 21-hydroxylase autoantibodies (21-OH Ab) at high titers. She had increased basal levels of ACTH with normal basal cortisol not responding to ACTH stimulation, reduced levels of dehydroepiandrosterone-sulfate but normal levels of orthostatic renin and aldosterone. This scenario was consistent with a subclinical AAD presenting with first impairments in pars fasciculata and reticularis and conserved pars glomerulosa function. Only subsequently, progressive deficiency in pars glomerulosa function has become evident. Review of the literature showed that there was only one case, reported to date, with a similar atypical natural history of AAD. The strategies for screening for ACA/21-OH Ab in patients with HT are discussed.
The preparation and antibacterial activity of cellulose/ZnO composite: a review
Authors: Zhao Si-Wei , Guo Chong-Rui , Hu Ying-Zhu , Guo Yuan-Ru , Pan Qing-Jiang 
Published: February 2018

AbstractThe infectious diseases caused by various bacteria pose serious threat to human health. To solve this problem, antibacterial agents have been widely used in people’s daily life to deactivate or kill these bacteria. Among the antibacterial agents, ZnO is one of the most promising metal oxide antibacterial agents due to its non-toxic nature and safe properties. To expand its application, many composites of ZnO have been widely studied. Cellulose, as one of the most abundant biopolymers, has many merits like biodegradability, biocompatibility and low cost. Thus, many studies focus on synthesized cellulose/ZnO. The synthetic strategy includes both chemical and physical methods. Many of them have been shown that cellulose/ZnO composites have excellent antibacterial activity and are environment-friendly and have many applications for example food packing, antibacterial fibers and so on. This review mainly discusses the preparation methods of cellulose/ZnO and their effect on the morphology and properties.
Photochemical Transformation of some 3-benzyloxy-2-(benzo[b]thiophen-2-yl)-4Hchromen-4-ones: A Remote Substituent Effect
Authors: Dalal Aarti , Khanna Radhika , Kamboj Ramesh C. 
Published: February 2018

Abstract
The effect on photochemical transformations of the substituents present remotely from the reaction site in 3-benzyloxy-2-(benzo[b]thiophen-2-yl)-4H-chromen-4-ones has been determined. The structure(s) of the substrates and photoproducts were established by spectroscopic techniques (UV, IR, and NMR). The substituents had profound effects on product yield and distribution. Electron withdrawing groups (EWGs) on the benzenoid moiety of the chromenone nucleus increased the yield of the photoproducts whereas electron donating groups (EDGs) decreased the yield. These results may be attributed to “state switching” of the substituents during excitation.
Dynamic Changes of Secondary Metabolites and Antioxidant Activity ofLigustrum lucidumDuring Fruit Growth
Authors: Guo Xiuchun , Xia Zhaoyang , Song Miaomiao , Li Changqin , Wang Jinmei , Kang Wenyi 
Published: February 2018

AbstractThere are a number of secondary metabolites having medicinal values inLigustri Lucidi Fructus. In this study, the target analytes salidroside, ligustroflavone, specnuezhenide, oleuropein, oleanolic acid and ursolic acid were chosen, aiming to establish a method to investigate the content of six compounds during eight growth stages ofLigustri Lucidi Fructus. Even though the results indicated that the contents of six compounds in different growth periods reached their maximum value, they displayed a downward trend. The antioxidant activity of the analyzed samples also decreased along with the growth period. The relationship between the content of six secondary metabolites and the activity has been elucidated. Hence, this research provides a theoretical basis for guiding efficient use ofLigustri Lucidi Fructus.
Effect of Ti and Ta on Oxidation Kinetic of Chromia Forming Ni-Base Superalloys in Ar-O2-Based Atmosphere
Authors: Nowak Wojciech J. , Wierzba Bartek , Sieniawski Jan 
Published: February 2018

AbstractIn the present study, two commercially available Ni-base superalloys, namely Rene 80 which contains Ti and IN 792 containing Ti and Ta, were investigated during isothermal oxidation at 1,050°C in Ar–20% O2 gas up to 50 h. It was found that IN 792 showed a slightly lower oxidation rate as compared to Rene 80. Also differences in oxide scale microstructures and thicknesses were found. Both alloys formed qualitatively similar oxide scales consisting of outer TiO2 on top of a Cr2O3 scale and internally oxidized Al2O3. The IN 792 formed a thinner oxide scale in general as well as a thinner outer TiO2 scale. Also the depth of the internally oxidized Al2O3 precipitates is smaller in case of IN 792. These findings were correlated with the formation of TiTaO4, which in turn hampered outer Ti and inward oxygen flux.
A Thermodynamic Study of the Reduction of a Limonitic Laterite Ore by Methane
Authors: Pickles C. A. , Anthony W. 
Published: February 2018

AbstractThe recovery of nickel from the oxidic nickeliferous laterite ores is receiving increasing attention due to the difficulty of recovering this metal from the sulphide ore deposits. One possible solution is to selectively reduce the nickel oxide in the ore, which could then be upgraded by, for example, magnetic concentration. In this article, a thermodynamic study was performed on the reduction of a limonitic laterite ore by methane. Methane was selected as the reducing agent as it has a lower environmental impact than carbon due to the reduced carbon dioxide emissions. The effects of temperatures and methane additions on the nickel recovery and nickel grade were investigated. High recoveries of over 95 % were predicted, but the grades were limited to about 2.5 % due to the formation of magnetite. The thermodynamic simulations for reduction by methane were in agreement with the experimental results in the literature for other reducing agents, reflecting the fact that the nickel oxide in the limonitic ore is relatively unstable. Thus, high recoveries could be achieved irrespective of the reducing agent involved.
Multi-Terminal High Voltage Direct Current Transmission System with DC Resonant Semiconductor Breakers
Authors: Kinjo Ryota , Matayoshi Hidehito , Ludin Gul Ahmad , Howlader Abdul Motin , Urasaki Naomitsu , Senjyu Tomonobu 
Published: February 2018

AbstractIn consideration of the natural environment and depletion of energy resources, the widespread use of electric power system is expected in which the power is generated from sources of renewables such as wind and solar. When these plants are introduced in large scale, the use of broad land is required. Due to low transmission losses and small stability problems, multi-terminal high voltage direct current (MTDC) transmission becomes advantageous as long-distance power transmission system. Since DC current does not incorporate a zero cross point, therefore it’s blocking is difficult. This paper proposes a DC resonant semiconductor breaker which enables rapid fault clearance for self-excited HVDC transmission. This circuit breaker is connected as a semiconductor switch, in parallel with a group of capacitors, and resistors in the DC transmission line. The capacitor is charged to a higher voltage from the DC transmission line. For generating reverse current to allow the zero cross point in the transmission line, the semiconductor switch turns on to open the circuit breaker. After blocking, the inductance of the line is demagnetized by the resistor and fault clearing is achieved. The system except fault point can continue its normal operation.
Spline approximation, Part 1: Basic methodology
Authors: Ezhov Nikolaj , Neitzel Frank , Petrovic Svetozar 
Published: February 2018

Abstract
In engineering geodesy point clouds derived from terrestrial laser scanning or from photogrammetric approaches are almost never used as final results. For further processing and analysis a curve or surface approximation with a continuous mathematical function is required. In this paper the approximation of 2D curves by means of splines is treated. Splines offer quite flexible and elegant solutions for interpolation or approximation of “irregularly” distributed data. Depending on the problem they can be expressed as a function or as a set of equations that depend on some parameter. Many different types of splines can be used for spline approximation and all of them have certain advantages and disadvantages depending on the approximation problem. In a series of three articles spline approximation is presented from a geodetic point of view. In this paper (Part 1) the basic methodology of spline approximation is demonstrated using splines constructed from ordinary polynomials and splines constructed from truncated polynomials. In the forthcoming Part 2 the notion of B-spline will be explained in a unique way, namely by using the concept of convex combinations. The numerical stability of all spline approximation approaches as well as the utilization of splines for deformation detection will be investigated on numerical examples in Part 3.
Social Media and Crisis Communications: A Survey of Local Governments in Florida
Authors: Neely Stephen R. , Collins Matthew 
Published: February 2018

Abstract
Social media platforms are increasingly being used by public agencies and emergency managers to communicate with the public in times of crisis. However, while the adoption of these technologies has been well documented at the federal level, little is known empirically about the extent to which social media are being utilized for emergency management communications by local agencies, and less still is known about how rates of adoption vary based on the organizational and demographic characteristics of local municipalities. This exploratory study provides an empirical analysis of social media use by local municipalities in the State of Florida and examines the organizational and demographic factors related to social media adoption for emergency and crisis communications. The study suggests that social media are still underutilized by local agencies in many regards. Findings also indicate that larger municipalities which serve younger, more highly educated populations are more likely to adopt social media for crisis communications, while agencies representing traditionally under-served populations are less likely to utilize social media for these same purposes. The implications of these findings are discussed, particularly the role of higher education in preparing public administrators and emergency managers for careers in a networked society.
Approaches mothers of first graders use to deal with perceived reading difficulties
Authors: Sedláčková Jana 
Published: February 2018

AbstractThis study aims to enhance our understanding of how mothers of first graders cope with the perceived reading difficulties of their children. Their different perceptions stem from the reading aspirations the mothers have for their children. The study uses data obtained from in-depth semi-structured interviews with 10 mothers, conducted at the end of the second half of the 2015/2016 school year. The data analysis revealed that the differences in the mothers’ perceptions of their children’s reading difficulties are reflected in a wide variety of micro-actions aimed at solving them. Three different approaches can be identified: a)inspector mothers, who are most concerned about their child’s reading errors and their primary focus is on operationally correcting these errors; b)promoter mothers, who are primarily worried about their child’s potential or existing lack of interest in reading and who manage all reading activities so as to motivate the child (or prevent demotivation), e.g., through turn-taking in reading or in ensuring a regular supply of books; c)educator mothers, who fear most that their child will not understand the text and who show willingness and enthusiasm in explaining and creating various opportunities for reading literacy development, both as part of homework activities and leisure reading. They also engage in holistic attempts to prevent reading failures, and motivate their children to read through the act of reading. The conclusions of the study are explained in the context of self-determination theory and a discussion of the impact of parents’ socioeconomic status on their involvement or engagement in their children’s education.
Primary teachers go beyond the Slovak civic education curriculum
Authors: Danišková Zuzana , Lukšík Ivan 
Published: February 2018

Abstract
A number of studies have pointed to the low level of civic participation among young people. On the other hand, there is a section of the youth population that is politically involved in and supportive of extremist and anti-system political movements. Public discussions have suggested that this may be linked to inadequacies in citizenship education. However, as the Slovak case shows, the causes of this are deeper, have historic roots and are reflected in the fact that citizenship education has been pushed to the margins of the curriculum and is narrowly interpreted. Citizenship education is not just about the nature of the curriculum but also about broader extra-curricular activities and about the direct, or implicit, instruction provided by teachers. The empirical research presented here shows that primary school teachers go beyond the narrow framework of the national social studies syllabus and implicitly teach citizenship education in line with their own civic orientations.
On the fine Simpson moduli spaces of 1-dimensional sheaves supported on plane quartics
Authors: Iena Oleksandr 
Published: February 2018

Abstract
A parametrization of the fine Simpson moduli spaces of 1-dimensional sheaves supported on plane quartics is given: we describe the gluing of the Brill-Noether loci described by Drézet and Maican, provide a common parameter space for these loci, and show that the Simpson moduli space M = M
4m ± 1(ℙ2) is a blow-down of a blow-up of a projective bundle over a smooth moduli space of Kronecker modules. Two different proofs of this statement are given.
Evaluation of integrals with hypergeometric and logarithmic functions
Authors: Sofo Anthony 
Published: February 2018

Abstract
We provide an explicit analytical representation for a number of logarithmic integrals in terms of the Lerch transcendent function and other special functions. The integrals in question will be associated with both alternating harmonic numbers and harmonic numbers with positive terms. A few examples of integrals will be given an identity in terms of some special functions including the Riemann zeta function. In general none of these integrals can be solved by any currently available mathematical package.
Pattern of alcohol consumption by young people from North Eastern Portugal
Authors: Gonçalves Isabel Amorim , Carvalho Amâncio António de Sousa 
Published: February 2018

Abstract
Alcohol is the most used psychoactive substance among adolescents, is an important public health problem and a major risk factor for the health of this group. This study is regarding to the pattern of alcohol consumption by adolescents. Descriptive, correlational and cross-sectional study, with a sample of 378 adolescents, which are attending three high schools, in north-eastern Portugal. In the data collection we used a questionnaire. Data was analysed using SPSS. The prevalence of alcohol is 86.8%. The mean score of Alcohol Use Disorders Identification Test (AUDIT) was 3.53±4.525 points. The vast majority of participants were located in the non-excessive alcohol consumption area (91.3%). The pattern of alcohol consumption differs significantly between gender (Wald: p ≤ 0,004) and the religious practice (Wald: p ≤ 0,027), with greater percentage of boys and students who did not practice any religion in excessive consumers. The prevalence of alcohol consumers is high. The proportion of young people with excessive consumption in our sample is lower than in other studies, but shows that there is a group of adolescents in excessive consumption. It found a relationship between consumption pattern, gender and religious practice. These results justify the development of public health interventions.
Structure and optical properties of TiO2 thin films deposited by ALD method
Authors: Szindler Marek , Szindler Magdalena M. , Boryło Paulina , Jung Tymoteusz 
Published: February 2018

Abstract
This paper presents the results of study on titanium dioxide thin films prepared by atomic layer deposition method on a silicon substrate. The changes of surface morphology have been observed in topographic images performed with the atomic force microscope (AFM) and scanning electron microscope (SEM). Obtained roughness parameters have been calculated with XEI Park Systems software. Qualitative studies of chemical composition were also performed using the energy dispersive spectrometer (EDS). The structure of titanium dioxide was investigated by X-ray crystallography. A variety of crystalline TiO2 was also confirmed by using the Raman spectrometer. The optical reflection spectra have been measured with UV-Vis spectrophotometry.