bluuebunny/crossref_metadata_2025 huggingface dataset:
Desain Bahan Ajar Teks Deskripsi untuk Siswa SMP Kelas VII
Authors: Susilo Jimat , wahyuni yuyun
Published: August 2018

Seorang pendidik yang profesional dituntut kreativitasnya untuk mampu menyusun bahan ajar yang menarik dan sesuai dengan kebutuhan guru, siswa, dan tuntutan kurikulum. Berdasarkan hasil observasi di beberapa sekolah, dapat diketahui guru dan siswa sangat membutuhkan bahan ajar pendamping selain yang sudah disediakan oleh pemerintah. Pada hakikatnya, bahan ajar merupakan komponen penting yang digunakan guru dalam kegiatan pembelajaran karena dapat meningkatkan hasil belajar siswa. Teks deskripsi merupakan salah satu genre teks yang terdapat pada silabus Kurikulum 2013 Revisi yang harus dipelajari oleh siswa SMP Kelas VII. Berkaitan dengan masalah tersebut, tujuan penelitian ini untuk mengembangkan bahan ajar teks deskripsi untuk siswa SMP Kelas VII. Secara khusus, masalah yang dikaji meliputi (1) proses penyusunan bahan ajar teks deskripsi untuk siswa SMP kelas VII, (2) bentuk bahan ajar teks deskripsi untuk siswa SMP Kelas VII, dan (3) respons guru bahasa Indonesia dan siswa terhadap bahan ajar teks deskripsi untuk siswa SMP kelas VII. Metode yang digunakan adalah kualitatif deskriptif dengan analisis data dilakukan secara triangulasi.
Boosted visual performance after eye blinks
Authors: Ang Jit Wei Aaron , Maus Gerrit W
Published: August 2018

We blink more often than required for maintaining the corneal tear film. It is unclear whether there are perceptual or cognitive consequences of blinks that may justify their high frequency. Recent findings showed that blinks occur at consistent time points and may indicate switches between large scale cortical networks, such as dorsal attention and default-mode networks. Thus, blinks may trigger a refresh of visual attention, although this has so far not been confirmed behaviourally. Here, we tested the effect of blinks on visual performance in a rapid serial visual presentation task. In Experiment 1, participants had to identify a target digit embedded in a random stream of letter distractors, presented foveally for 60 ms each. Participants blinked once during the presentation stream. In a separate condition, blinks were simulated by shutter glasses. We found enhancements of performance (up to 15% point increase in accuracy) for targets appearing up to 300 ms after blinks. This finding was replicated for object recognition with naturalistic stimuli (Experiment 2) and for spatially distributed stimuli (Experiment 4), but not in a numerosity task (Experiment 3). We also observed a later, suatained performance boost after blinks in five experiments. While the early performance boost may be partially based on retinal transients induced by blinks, the later boost signifies an attentional reset triggered by eye blinks. We conclude that eye blinks lead to attentional benefits in the period after reopening of the eyelids and may be used strategically for temporarily boosting visual performance.
Relationality and Life: Phenomenological Reflections on Miscarriage
Authors: Lenore Wright J.
Published: August 2018

In this essay, I analyze pregnancy loss from a feminist phenomenological perspective. I draw upon relational accounts of personhood wherein a person's status and identity are formed through a lived history and the activity of “calling into personhood” a being a woman may seek to know (a child) or become (a mother—or parent or “Ren”). I draw upon the work of Simone de Beauvoir, who advances a feminist phenomenology that grounds the status and identity of women within embodied situations. Her important work sheds light on the varied perceptions and processes that inform experiences of pregnancy and pregnancy loss.
Missing Phenomenological Accounts: Disability Theory, Body Integrity Identity Disorder, and Being an Amputee
Authors: Wieseler Christine
Published: August 2018

Phenomenology provides a method for disability theorists to describe embodied subjectivity lacking within the social model of disability. Within the literature on body integrity identity disorder (BIID), dominant narratives of disability are influential, individual bodies are considered in isolation, and experiences of disabled people are omitted. Research on BIID tends to incorporate an individualist ontology. In this article, I argue that Merleau-Ponty's conceptualization of “being in the world,” which recognizes subjectivity as embodied and intersubjective, provides a better starting point for research describing the experiences of those with BIID and amputees.
Disabled Bodies and Norms of Flourishing in the Human Engineering Debate
Authors: Sparrow Tom
Published: August 2018

In this paper, I argue that Jonathan Glover, a prominent advocate of human genetic engineering, relies on a limited naturalistic account of normal human function in his defense of genetic engineering as a means of decreasing future instances of disability. I show that his concept of disability and the normative argument informed by it in his Choosing Children: Genes, Disability, and Design fails to incorporate the phenomenological dimension of embodiment, and that this dimension should be included in any account of disability and human flourishing. Such inclusion, however, requires us to consider seriously the counterintuitive view that racial minorities are constitutionally disabled in racist societies.
Trends of the investment market development in conditions of economic instability in Ukraine
Authors: Stepanova Daria , Stepanova Inna
Published: August 2018

Introduction. In recent years, Ukraine's economy is in a difficult situation, while maintaining its tendency to deteriorate. That is why investments in the creation of favorable conditions for its development play an important role. The attracted investments are the basis for the development of the Ukrainian economy, ensuring the possibility of its integration into the European socio-economic space, increasing the competitiveness of domestic enterprises, thereby reducing the level of dependence on imports and developing export potential.
Aim and tasks. The purpose of the article is to conduct a comprehensive analysis of the current state of the Ukrainian investment market, identify key issues that impede the attraction of additional capital investments and the future prospects of investment in the economy of the country in accordance with current economic and political realities.
Research results. The article reveals the role of investments in the further development of the Ukrainian economy. The complex analysis of the current state of the investment market of the country is carried out. In carrying out the analysis of the investment market, methods of statistical analysis, system generalization, qualitative and quantitative comparison were used. The main factors that negatively influence on this market are determined, restraining the development of investment activity and reducing the competitiveness of the Ukrainian economy. The main directions of increase of investment attractiveness, the realization of which will contribute to the growth of capital investments, are offered.
Conclusion. On the basis of the analysis of the Ukrainian investment market, it was found that foreign investors are extremely cautious with the injection of additional flows into the Ukrainian economy. It is proved that this process is due to gaps in the economy and investment market of the country. At the same time, Ukraine belongs to countries with huge potential for attraction of investments due to the rich natural resources, scientific and technical potential, skilled labor, and favorable infrastructure. The key objectives of investment policy should be to implement a comprehensive solution to the country's economic, social and political problems. Effective reforms are needed to improve the situation in the country, which will stimulate business development, increase the living standards of the population and the economy of the country.
Effects of Dietary MicroalgaeNannochloropsis gaditanaon Serum and Redox Status in Obese Rats Subjected to a High Fat Diet
Authors: Bendaoud A. , Baba Ahmed F.Z. , Merzouk H. , Bouanane S. , Bendimerad S.
Published: August 2018

Marine organisms, including microalgae, are among major subjects of investigation for the research of new molecules with biological activity that may improve responses to metabolic treatment. MicroalgaeNannochloropsis gaditanaare rich sources of diverse bioactive compounds. In this context, the present study was conducted to evaluate the effects of dietary microalgaeNannochloropsis gaditanain the modulation of biochemical parameters and oxidant/antioxidant markers in rats subjected to a high fat diet. Male rats were fed on control or high fat diet (hyperlipidic/hypercaloric diet), supplemented or not withNannochloropsis gaditana(10%) for two months. At the end of the experiment, plasma and tissues biochemical parameters and oxidant/antioxidant markers were determined. Our results show that the high fat diet induced a significant increase in body weight, food intake, and adverse alterations in biochemical parameters such as an increase in plasma glucose, triglyceride, cholesterol, and oxidant markers.Nannochloropsis gaditanasupplementation in high fat diet induced a reduction in weight gain, plasma, and tissue lipids and attenuates oxidative stress, thus, improving the metabolic status. In conclusion,Nannochloropsis gaditanaby the properties of their bioactive compounds seem to have a hypoglycemic, hypolipidemic nature and improves the redox status of the subject, which could prevent and/or attenuate some metabolic disorders associated with obesity.
Hémorragies intra-alvéolaires
Authors: Parrot A. , Voiriot G. , Canellas A. , Gibelin A. , Nacacche J.-M. , Cadranel J. , Fartoukh M.
Published: August 2018

L’hémorragie intra-alvéolaire (HIA), maladie rare, est une urgence thérapeutique, car elle peut conduire rapidement vers une insuffisance respiratoire aiguë asphyxiante avec décès. La triade, hémoptysie–anémie–infiltrat radiologique, suggère le diagnostic d’HIA, mais elle peut manquer dans deux tiers des cas, y compris chez des patients en détresse respiratoire. La tomodensitométrie thoracique peut aider dans les formes atypiques. Le diagnostic d’HIA repose sur la réalisation d’un lavage bronchoalvéolaire. Les étiologies en sont très nombreuses. Il importera de séparer, en urgence, les HIA d’origine non immune, avec un dépistage de celles d’origine septique qui doivent bénéficier d’une enquête microbiologique ciblée et cardiovasculaire avec la réalisation d’une échographie cardiaque, des HIA immunes (les vascularites liées aux anticorps anticytoplasme des polynucléaires neutrophiles, les connectivites et le syndrome de Goodpasture), avec la recherche d’autoanticorps et la réalisation de biopsies au niveau des organes facilement accessibles. La biopsie pulmonaire doit rester exceptionnelle. En cas d’HIA immune inaugurale, un traitement par stéroïdes et cyclophosphamide peut être débuté. Les indications du rituximab commencent à être mieux établies. Le bénéfice des échanges plasmatiques est débattu. En cas de réapparition d’infiltrats pulmonaires, chez un patient suivi pour une HIA immune, on s’efforcera d’écarter une infection dans un premier temps.
PENGARUH PEMBERIAN AIR PERASAN WORTEL TERHADAP BERBAGAI TINGKAT NYERI DISMENORE PADA MAHASISWA
Authors: Hastuti Puji , Sumiyati Sumiyati , Aini Fajaria Nur
Published: August 2018

DiÂ IndonesiaÂ angkaÂ kejadianÂ dismenoreÂ (nyeriÂ haid)Â sebesarÂ 64.25Â %Â yangÂ terdiriÂ dariÂ 54,89%Â dismenoreÂ primerÂ danÂ 9,36Â %Â dismenoreÂ sekunder.Â UntukÂ mengatasiÂ dismenoreÂ wanitaÂ diÂ IndonesiaÂ banyakÂ menggunakanÂ jamuÂ berbahanÂ alamiÂ namunÂ belumÂ banyakÂ yangÂ menggunakanÂ wortel.Â WortelÂ sendiriÂ mengandungÂ BetaÂ karotenÂ yangÂ mempunyaiÂ efekÂ analgetikÂ jikaÂ diberikanÂ dalamÂ dosisÂ tertentu.Â TujuanÂ penelitianÂ adalahÂ mengetahuiÂ pengaruhÂ pemberianÂ airÂ perasanÂ wortelÂ terhadapÂ berbagaiÂ tingkatÂ nyeriÂ dismenoreÂ padaÂ mahasiswa.Â PenelitianÂ berjenisÂ korelasiÂ denganÂ preÂ eksperimentalÂ designÂ pretest-posttestÂ oneÂ groupÂ design.Â VariabelÂ bebasÂ airÂ perasanÂ wortelÂ danÂ variabelÂ terikatÂ berbagaiÂ tingkatÂ nyeriÂ dismenore.Â SampelÂ penelitianÂ adalahÂ mahasiswaÂ sejumlahÂ 25.Â HasilÂ analisisÂ WilcoxonÂ MatchÂ PairedÂ TestÂ didapatkanÂ Asymp.Â SigÂ 0,001Â (p less than 0,05)Â makaÂ HaÂ diterimaÂ danÂ HoÂ diÂ tolak.Â HalÂ tersebutÂ menunjukkanÂ bahwaÂ adaÂ pengaruhÂ pemberianÂ airÂ perasanÂ wortelÂ terhadapÂ berbagaiÂ tingkatÂ nyeriÂ dismenoreÂ padaÂ mahasiswaÂ denganÂ p=0,001.Â DisarankanÂ bagiÂ paraÂ remajaÂ atauÂ dewasaÂ untukÂ meningkatkanÂ pengetahuanÂ mengenaiÂ dismenoreÂ danÂ menjadikanÂ jusÂ wortelÂ sebagaiÂ salahÂ satuÂ alternatifÂ untukÂ mengatasiÂ nyeriÂ dismenore.
PENGARUH PIJAT OKSITOSIN TERHADAP PENURUNAN TINGGI FUNDUS UTERI PADA IBU POSTPARTUM NORMAL
Authors: Rullyni Nurniati Tianastia , Rahmadona Rahmadona , Lubis Astri Yulia Sari
Published: August 2018

MasihÂ banyakÂ kejadianÂ perdarahanÂ ibuÂ postpartumÂ dikarenakanÂ lemahÂ atauÂ tidakÂ adanyaÂ kontraksiÂ uterusÂ diÂ bidanÂ praktikÂ mandiriÂ KotaÂ Tanjungpinang.Â DenganÂ tidakÂ adanyaÂ kontraksiÂ uterusÂ dapatÂ mempengaruhiÂ tinggiÂ fundusÂ uteri.Â PenelitianÂ iniÂ bertujuanÂ untukÂ mengetahuiÂ pengaruhÂ pijatÂ oksitosinÂ terhadapÂ penurunanÂ tinggiÂ fundusÂ uteriÂ padaÂ ibuÂ postpartumÂ normal.Â DesainÂ penelitianÂ iniÂ adalahÂ eksperimenÂ posttestÂ onlyÂ controlÂ groupÂ denganÂ jumlahÂ sampelÂ 40Â orangÂ ibuÂ postpartum.Â SampelÂ diÂ hitungÂ menggunakanÂ rumusÂ ujiÂ hipotesisÂ terhadapÂ rerataÂ duaÂ populasiÂ independenÂ denganÂ teknikÂ samplingÂ randomisasiÂ blok.Â PerlakuanÂ dilakukanÂ denganÂ pijatÂ oksitosinÂ selamaÂ 2-3Â menitÂ setiapÂ hari,Â dilaksanakanÂ selamaÂ limaÂ hariÂ postpartum.Â DataÂ yangÂ diperolehÂ dianalisisÂ menggunakanÂ ujiÂ IndependentÂ sampelÂ t-testÂ denganÂ mengendalikanÂ usia,Â paritas,Â danÂ inisiasiÂ menyusuiÂ dini.Â HasilÂ penelitianÂ menunjukanÂ adaÂ pengaruhÂ pijatÂ oksitosinÂ terhadapÂ penurunanÂ tinggiÂ fundusÂ uteriÂ padaÂ ibuÂ postpartumÂ normal.Â
HUBUNGAN PROSES ASUHAN GIZI TERSTANDAR (PAGT) TERHADAP TINGKAT KEPUASAN DAN LAMA HARI RAWAT PASIEN ANAK INFEKSI
Authors: Abdurrachim Rijanti , Eliyanti Malinda
Published: August 2018

Proses Asuhan Gizi Terstandar (PAGT) adalah metode pemecahan masalah yang sistematis dalam menangani problem gizi. Keberhasilan pelayanan gizi di ruang rawat inap berkaitan dengan kepuasan pasien yang dilayani. Kejadian penyakit infeksi tropis di Ruang Rawat Inap Anak Sedap Malam RSUD Ulin Banjarmasin tergolong tinggi. Hasil studi pendahuluan dilakukan terhadap lima (5) orang pasien anak infeksi, hanya tiga (3) diterapkan PAGT dan sisanya tidak diterapkan PAGT. Tingkat kepuasan terhadap PAGT, dari tiga (3) pasien yang diterapkan PAGT, satu (1) menyatakan tidak puas. Penelitian ini bertujuan untuk mengetahui apakah ada hubungan Proses Asuhan Gizi Terstandar (PAGT) terhadap tingkat kepuasan dan lama hari rawat inap pasien anak dengan penyakit infeksi di Ruang Rawat Inap Anak Sedap Malam RSUD Ulin Banjarmasin.Jenis penelitian observasional analitik dengan rancang cohort prospektif. Populasi adalah semua pasien anak penyakit infeksi di Ruang Rawat Inap Anak Sedap Malam Kelas II dan Kelas III RSUD Ulin Banjarmasin, yang telah diterapkan PAGT maupun yang tidak diterapkan PAGT pada bulan Maret 2016. Sampel berjumlah 36 pasien, 18 pasien tidak diterapkan PAGT dan 18 pasien diterapkan PAGT. Variabel yang diteliti yaitu PAGT, tingkat kepuasan dan lama hari rawat. Analisis menggunakan uji korelasi reank spearman (a = 0,05).Responden didominasi oleh pasien berjenis kelamin laki-laki (52,8%) rentang umur 0 s/d 5 tahun (38,9%), diagnosa DHF Grade I (38,9%), tingkat kepuasan tidak puas (38,9%) dan lama hari rawat pendek (77,8%). Ada hubungan antara Proses Asuhan Gizi Terstandar (PAGT) dengan tingkat kepuasan (p-value = 0,000) dan lama hari rawat (p-value = 0,001).Semakin diterapkan PAGT maka pasien semakin puas dan semakin lama hari rawat pasien karena kondisi resiko malnutrisi. Hendaknya peneliti selanjutnya meneliti faktor apa saja yang turut mempengaruhi lama hari rawat pada pasien yang diterapkan Proses Asuhan Gizi Terstandar (PAGT).
After the Long Wait: Post-Migrant Agency and the Politics of Return in Tahar Ben Jelloun's A Palace in the Old Village
Authors: Bugeja Norbert
Published: August 2018

This essay offers a contemplation of the affinity between a post-literary idiom and the question of migrant writing through a reading of Tahar Ben Jelloun's novella A Palace in the Old Village (Arcadia Books, 2011 [2009]). Taking its cue from the novella's account of its Maghrebi protagonist, the migrant worker Mohammed, in the moment of his retirement and return to Morocco, the essay opens up the question of whether the liminal ‘Franco-Maghrebi borderland’ ( Sajed 2013 ) which he traverses, as well as the home-space itself, may be perceived as either discursively generative and liberatory spaces, or as ultimately aporetic zones of living. The essay evaluates Ben Jelloun's novella as a ‘post-migrant’ one, approaching the narrative spatial projection back into the native space as a dynamics of refraction, a quest for ‘choric’ ( Rickert 2007 ) spatiality, and a restitution of agency to and from the autochthonous. The essay finally suggests that Ben Jelloun's novella stages an amplified visualisation of post-migrant discourse as it percolates through the migrant body. As Mohammed deteriorates on his native Moroccan terrain, waiting for his children who never show up, his fading body is now indelibly marked by the labour to which post-war Europe owed much of its economic resurgence: a dynamics which is described here as a ‘refracted indigeneity’.
Development and Implementation of a Multi-Channel Active Control System for the Reduction of Road Induced Vehicle Interior Noise
Authors: Gäbel Gunnar , Millitzer Jonathan , Atzrodt Heiko , Herold Sven , Mohr Andreas
Published: August 2018

An optimized driving comfort with a low interior noise level is an important intention in the passenger car development process. The interior noise level caused by the dynamic interaction between the rolling tyre and the rough road surface and transmitted via the car-body is a significant component of the entire noise level. To reduce the road induced interior noise, in general, the chassis system has to be optimized. Passive measures often induces a trade-off between vehicle dynamics and driving comfort. To overcome this disadvantage in this paper, the development and realization of an active measure is proposed. For the purpose of active mechanical decoupling, an active control system is developed, the feasibility of the integration is investigated and its noise reduction potential is identified by vehicle tests. In a first step, a classical multi-channel and experimental-based structure-borne transfer path analysis of the full vehicle is realized to determine the dominant transfer paths. The concept for the active mount system (active mounts, multi-channel control system, sensors) is developed and parametrized by system level simulation. Mechanical components and power electronics of the active system are designed, manufactured and tested in the laboratory. Subsequently, the entire active system is integrated into the vehicle. The broadband adaptive feedforward algorithm is extended by certain measures in order to improve robustness and performance. Full vehicle tests are used to quantify the required specifications and the achieved effectiveness of the active vibration control system.
Turbine Blade Tip External Cooling Technologies
Authors: Xue Song , Ng Wing F.
Published: August 2018

This article provides an overview of gas turbine blade tip external cooling technologies. It is not the intention to comprehensively review all the publications from past to present. Instead, selected reports, which represent the most recent progress in tip cooling technology in open publications, are reviewed. The cooling performance on flat tip and squealer tip blades from reports are compared and discussed. As a generation conclusion, tip clearance dimension and coolant flow rate are found as the most important factors that significant influence the blade tip thermal performance was well as the over tip leakage (OTL) flow aerodynamics. However, some controversial trends are reported by different researchers, which could be attributed to various reasons. One of the causes of this disagreement between different reports is the lacking of unified parametric definition. Therefore, a more appropriate formula of blowing ratio definition has been proposed for comparison across different studies. The last part of the article is an outlook of the new techniques that are promising for future tip cooling research. As a new trend, the implementation of artificial intelligence techniques, such as genetic algorithm and neural network, have become more popular in tip cooling optimization, and they will bring significantly changes to the future turbine tip cooling development.
Influence of Soil Amendments on the Growth and Yield of Rice in Acidic Soil
Authors: Abdul Halim Nur Sa’adah , Abdullah Rosazlin , Karsani Saiful Anuar , Osman Normaniza , Panhwar Qurban Ali , Ishak Che Fauziah
Published: August 2018

In Malaysia, about 0.5 million ha of acid sulfate soils are found scattered over the east, west, and Sabah and Sarawak regions that can potentially be cultivated with paddy. This type of soil is acidic and not immediately suitable for crop production unless improved by applying some amendments. Thus, the current study was carried out to investigate the effects of various types of soil amendments on the growth, yield, and physiological responses of rice grown in extremely acidic conditions using ground magnesium limestone (GML), basalt, biochar, and compost as soil amendments. The acid sulfate soil with a pH of 3.76 was obtained from a paddy field in Merbok, Kedah. The plant responses were evaluated based on agronomic, physiological, and yield performance. The compost-treated rice showed the best performance in all three criteria. Compost treatment increased the soil pH up to 6.25. Physiological performances such as chlorophyll, photosynthetic rate, and water use efficiency were higher after compost treatment, while transpiration and stomatal conductance showed the highest after GML treatment. It can be concluded that the addition of compost as a soil amendment can increase soil pH and create favorable soil conditions for rice cultivation in acid sulfate soil, leading to improved rice growth performance.
Astrocyte Antioxidant Systems
Authors: McBean Gethin J.
Published: August 2018

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Effective Modal Volume in Nanoscale Photonic and Plasmonic Near-Infrared Resonant Cavities
Authors: Li Xi , Smalley Joseph S. T. , Li Zhitong , Gu Qing
Published: August 2018

We survey expressions of the effective modal volume, Veff, commonly used in the literature for nanoscale photonic and plasmonic cavities. We apply different expressions of Veff to several canonical cavities designed for nanoscale near-infrared light sources, including metallo-dielectric and coaxial geometries. We develop a metric for quantifying the robustness of different Veff expressions to the different cavities and materials studied. We conclude that no single expression for Veff is universally applicable. Several expressions yield nearly identical results for cavities with well-confined photonic-type modes. For cavities with poor confinement and a low quality factor, however, expressions using the proper normalization method need to be implemented to adequately describe the diverging behavior of their effective modal volume. The results serve as a practical guideline for mode analysis of nanoscale optical cavities, which show promise for future sensing, communication, and computing platforms.
Social Cognition and Oxytocin in Huntington’s Disease: New Insights
Authors: Unti Elisa , Mazzucchi Sonia , Frosini Daniela , Pagni Cristina , Tognoni Gloria , Palego Lionella , Betti Laura , Miraglia Fabiana , Giannaccini Gino , Ceravolo Roberto
Published: August 2018

This study is aimed at relating social cognition in Huntington’s Disease (HD) to plasma levels of the social hormone oxytocin (OT). Indeed, HD patients commonly display reduced social skills and OT is involved in bonding behavior and improved recognition of facial emotions. Twelve mild-symptomatic HD patients (stage II Shoulson & Fahn) and 11 gender/age matched controls (healthy controls, HC), without concurrent psychiatric disorders, were investigated at baseline (T0) for OT plasma levels and social cognition through an extensive battery of neuropsychological tests. Social cognition was also re-examined after two years (T1) in 8 of the 12 patients. Results showed a trend for reduced T0-OT levels in HD vs. HC, mean ± stardard deviation: 6.5 ± 2.4 vs. 9.9 ± 7.2 pg/mL, without reaching statistical significance. At T0, patients showed significantly lower performances than controls at the “Faux-Pas” and “Strange Stories” tests (p < 0.05; p < 0.01); a reduced perception of visual emotions (p < 0.01) and verbal stimuli (p < 0.01) was also reported, involving anger, fear, and sadness (p < 0.05; p < 0.01). Additionally, in the HD population, OT concentrations positively correlated with T1-performances at Neutral\Faux-Pas test (p < 0.05), whereas the cognitive Montreal Cognitive Assessment (MoCA) and Mini Mental State Examination (MMSE) scores positively correlated with psychosocial perception at the “Strange Stories” and Karolinska Directed Emotional Faces (KDEF) tests (p < 0.05). This study, despite its limitations, supports correlations between OT and HD social cognition, suggesting a possible therapeutic use of this hormone. More subjects and additional body tissues/fluids, such as cerebrospinal fluid, should be investigated to confirm this hypothesis.
Complete Remission of a Refractory Acute Myeloid Leukemia with Myelodysplastic- and Monosomy 7-Related Changes after a Combined Conditioning Regimen of Plerixafor, Cytarabine and Melphalan in a 4-Year-Old Boy: A Case Report and Review of Literature
Authors: Grasso Antonio G. , Granzotto Marilena , Zanon Davide , Maestro Alessandra , Loiacono Stefano , Maximova Natalia
Published: August 2018

Acute myeloid leukemia with myelodysplastic changes and monosomy 7 is a rare form of pediatric leukemia associated with very poor disease-free survival. The refractoriness of the disease is due to the protection offered by the bone marrow niche, making leukemic stem cells impervious to whatever chemotherapy or myeloablative regimen is chosen. Using a mobilizing agent for haematopoietic stem cells, Plerixafor, could sensitise leukemic cells to the myeloablative therapy. This approach was not previously used in a pediatric population, and in adult populations, was used in combination with busulphan with no difference in overall survival. We describe the case of a 4-year-old boy affected by refractory acute myeloid leukemia with myelodysplastic changes and monosomy 7. The child had never achieved a remission. We proposed a combined time-scheduled scheme of therapy with plerixafor and melphalan. Combining pharmacokinetics of plerixafor with pharmacokinetics and rapid and elevated myeloablative potential of melphalan in high dosage (200 mg/m2), we succeeded in mobilizing more than 85% of stem blasts immediately before infusion of Melphalan. The count of residual blasts after 8 h from melphalan infusion was only 1.3 cells/μL. The child achieved an engraftment at day +32 with full donor chimerism. Sixteen months after haematopoietic stem cell transplantation (HSCT), he is well and in complete remission. Our case suggests that the use of plerixafor before a conditioning therapy with melphalan could induce remission in acute myeloid leukemia refractory to the usual conditioning therapy in pediatric patients. This work adds strength to the body of knowledge regarding the “personalized” conditioning regimen for high-risk leukemic patients.
Effect of Microwave Drying, Calcination and Aging of Pt/Al2O3 on Platinum Dispersion
Authors: Auvray Xavier , Thuault Anthony
Published: August 2018

The effect of heating method employed for drying and calcination during the synthesis of 1 wt% Pt/Al2O3 catalyst was investigated. Conventional heating (CH) in resistive oven and microwave heating (MW) in single mode were applied, and the Pt dispersion and Brunauer-Emmett-Teller (BET) surface area were measured to characterize the samples. It was evidenced that the fast and homogeneous heating offered by the microwave heating led to higher Pt dispersion. However, this benefit was only achieved when the subsequent calcination was performed in a conventional oven. The aging in microwave oven of conventionally prepared—as well as MW-prepared—catalysts demonstrated the great ability of microwave irradiation to accelerate platinum sintering. After 1 h at 800 °C under microwave, catalysts showed a dispersion of 5%. Therefore, microwave treatment should be considered for accelerated catalyst aging but should be avoided as a calcination technique for the synthesis of highly dispersed Pt/Al2O3.
Design of Specific Acid-Base-Properties in CeO2-ZrO2-Mixed Oxides via Templating and Au Modification
Authors: Glorius Maja , Markovits Monica A. C. , Breitkopf Cornelia
Published: August 2018

Ceria-zirconia mixed oxides and gold supported oxides exhibit very good thermal stability and catalytic activity, as well as great selectivity. This work has been focused on the controlled synthesis and characterization of cationic- and amphiphilic-templated ceria, zirconia, and ceria-zirconia mixed oxides from nitrate and iso-propoxide precursors, and ceria-zirconia mixed oxides modified with gold via the deposition precipitation method with urea. The characterization of the acidic and basic properties was carried out through two test reactions. A complete chemical and structural characterization of the materials was done using Atomic Absorption Spectroscopy (AAS), Brunauer-Emmet-Teller Surface Analysis (N2-BET), X-Ray Diffraction (XRD), NH3- Temperature Programmed Desorption (TPD)/CO2-TPD, and Fourier Transform Infrared Spectroscopy (FTIR). Template techniques led to the formation of high surface area mesoporous materials with high activity and thermal stability. In general, the acid sites density was decreased, whereas the basic site density was increased by modification with Au or incorporation of zirconia in case of mixed oxides.
New Binary Locally Repairable Codes with Locality 2 and Uneven Availabilities for Hot Data
Authors: Lee Kang-Seok , Park Hosung , No Jong-Seon
Published: August 2018

In this paper, a new family of binary LRCs (BLRCs) with locality 2 and uneven availabilities for hot data is proposed, which has a high information symbol availability and low parity symbol availabilities for the local repair of distributed storage systems. The local repair of each information symbol for the proposed codes can be done not by accessing other information symbols but only by accessing parity symbols. The proposed BLRCs with k = 4 achieve the optimality on the information length for their given code length, minimum Hamming distance, locality, and availability in terms of the well-known theoretical upper bound.
Comparative Performance Analysis of a Simplified Curzon-Ahlborn Engine
Authors: Páez-Hernández Ricardo T. , Chimal-Eguía Juan Carlos , Ladino-Luna Delfino , Velázquez-Arcos Juan Manuel
Published: August 2018

This paper presents a finite-time thermodynamic optimization based on three different optimization criteria: Maximum Power Output (MP), Maximum Efficient Power (MEP), and Maximum Power Density (MPD), for a simplified Curzon-Ahlborn engine that was first proposed by Agrawal. The results obtained for the MP are compared with those obtained using MEP and MPD criteria. The results show that when a Newton heat transfer law is used, the efficiency values of the engine working in the MP regime are lower than the efficiency values ( τ ) obtained with the MEP and MPD regimes for all values of the parameter τ = T 2 / T 1 , where T 1 and T 2 are the hot and cold temperatures of the engine reservoirs ( T 2 < T 1 ) , respectively. However, when a Dulong-Petit heat transfer law is used, the efficiency values of the engine working at MEP are larger than those obtained with the MP and the MPD regimes for all values of τ . Notably, when 0 < τ < 0.68 , the efficiency values for the MP regime are larger than those obtained with the MPD regime. Also, when 0.68 < τ < 1 , the efficiency values for the aforementioned regimes are similar. Importantly, the parameter τ plays a crucial role in the engine performance, providing guidance during the design of real power plants.
Using Generalized Generation Distribution Factors in a MILP Model to Solve the Transmission-Constrained Unit Commitment Problem
Authors: Gutierrez-Alcaraz Guillermo , Hinojosa Victor H.
Published: August 2018

This study proposes a mixed-integer linear programming (MILP) model to figure out the transmission-constrained direct current (DC)-based unit commitment (UC) problem using the generalized generation distribution factors (GGDF) for modeling the transmission network constraints. The UC problem has been reformulated using these linear distribution factors without sacrificing optimality. Several test power systems (PJM 5-bus, IEEE-24, and 118-bus) have been used to validate the introduced formulation. Results demonstrate that the proposed approach is more compact and less computationally burdensome than the classical DC-based formulation, which is commonly employed in the technical literature to carry out the transmission network constraints. Therefore, there is a potential applicability of the accomplished methodology to carry out the UC problem applied to medium and large-scale electrical power systems.
Deformation, Permeability and Acoustic Emission Characteristics of Coal Masses under Mining-Induced Stress Paths
Authors: Xue Yi , Dang Faning , Cao Zhengzheng , Du Feng , Ren Jie , Chang Xu , Gao Feng
Published: August 2018

The geomechanical and seepage evolution characteristics of coal masses during mining are the key factors that affect the drainage of coalbed methane and the safety of coal mining. Nevertheless, the influence of mining paths on coal seam permeability is rarely investigated given the complexity of mining-induced stress experiments. To study the effect of mining-induced stress on coal mining, the mechanical properties, acoustic emission characteristics and energy evolution of coal masses were experimentally evaluated through mining-induced stress experiments. Experimental results indicated that at peak intensity, the deviatoric stress and axial strain of coal samples under the stress path of protective coal-seam mining are lower than those of coal samples under the non-pillar stress path. The unloading ratio of confining pressure is large under a stress path of non-pillar mining, and the elastic energy, the absorbed energy, and the dissipated energy of coal mass are low during destruction. The effect of high confining pressure on AE events is pronounced under the non-pillar mining path. The overall b value under high confining pressure is smaller than that under low confining pressure, and AE events generally have high energy. The fracture structure of coal mass is complex, and the fractal size of coal is large under high unloading rates of confining pressure, which induce the increase of permeability after coal destruction.
A Hybrid Machine Learning Model for Electricity Consumer Categorization Using Smart Meter Data
Authors: Jiang Zigui , Lin Rongheng , Yang Fangchun
Published: August 2018

Time-series smart meter data can record precisely electricity consumption behaviors of every consumer in the smart grid system. A better understanding of consumption behaviors and an effective consumer categorization based on the similarity of these behaviors can be helpful for flexible demand management and effective energy control. In this paper, we propose a hybrid machine learning model including both unsupervised clustering and supervised classification for categorizing consumers based on the similarity of their typical electricity consumption behaviors. Unsupervised clustering algorithm is used to extract the typical electricity consumption behaviors and perform fuzzy consumer categorization, followed by a proposed novel algorithm to identify distinct consumer categories and their consumption characteristics. Supervised classification algorithm is used to classify new consumers and evaluate the validity of the identified categories. The proposed model is applied to a real dataset of U.S. non-residential consumers collected by smart meters over one year. The results indicate that large or special institutions usually have their distinct consumption characteristics while others such as some medium and small institutions or similar building types may have the same characteristics. Moreover, the comparison results with other methods show the improved performance of the proposed model in terms of category identification and classifying accuracy.
Analysis, Modeling, and Control of Half-Bridge Current-Source Converter for Energy Management of Supercapacitor Modules in Traction Applications
Authors: Garcia Jorge , Garcia Pablo , Giulii Capponi Fabio , De Donato Giulio
Published: August 2018

In this work, an in-depth investigation was performed on the properties of the half-bridge current-source (HBCS) bidirectional direct current (DC)-to-DC converter, used to interface two DC-link voltage sources with a high-voltage-rating mismatch. The intended implementation is particularly suitable for the interfacing of a supercapacitor (SC) module and a battery stack in a hybrid storage system (HSS) for automotive applications. It is demonstrated that the use of a synchronous rectification (SR) modulation scheme benefits both the power-stage performance (in terms of efficiency and reliability) and the control-stage performance (in terms of simplicity and versatility). Furthermore, an average model of the converter, valid for every operating condition, is derived and utilized as a tool for the design of the control system. This model includes the effects of parasitic elements (mainly the leakage inductance of the transformer) and of the converter snubbers. A 3 kW prototype of the converter was used for experimental validation of the converter modeling, design, and performance. Finally, a discussion on the control strategy of the converter operation is included.
Impact of Drilling Costs on the US Gas Industry: Prospects for Automation
Authors: Crow Daniel , Anderson Kris , Hawkes Adam , Brandon Nigel
Published: August 2018

Recent low gas prices have greatly increased pressure on drilling companies to reduce costs and increase efficiency. Field trials have shown that implementing automation can dramatically reduce drilling costs by reducing the time required to drill wells. This study uses the DYNamic upstreAm gAs MOdel (DYNAAMO), a new techno-economic, bottom-up model of natural gas supply, to quantitatively assess the economic impact of lower drilling costs on the US upstream gas industry. A sensitivity analysis of three key economic indicators is presented, with results quoted for the most common field types currently producing, including unconventional and offshore gas. While all operating environments show increased profitability from drilling automation, it is found that conventional onshore reserves can benefit to the greatest extent. For large gas fields, a 50% reduction in drilling costs is found to reduce initial project breakevens by up to 17 million USD per billion cubic metres (MUSD/BCM) and mid-plateau breakevens by up to 8 MUSD/BCM. In this same scenario, additional volumes of around 160 BCM of unconventional gas are shown to become commercial due to both the lower costs of additional production wells in mature fields and the viability of developing new resources held in smaller fields. The capital efficiency of onshore projects increases by 50%–100%, with initial project net present value (NPV) gains of up to 32%.
A Method for Utility Harmonic Impedance Estimation Based on Constrained Complex Independent Component Analysis
Authors: Xiao Xianyong , Zheng Xian , Wang Ying , Xu Shuangting , Zheng Zixuan
Published: August 2018

Utility harmonic impedance is an important parameter for harmonic mitigation. In this paper, a method for utility harmonic impedance estimation method based on constrained independent component analysis is proposed. The conventional impedance estimation method based on ComplexICA has two major problems: the algorithm is not suitable for separating weak and strong source mixed signals, and lots of sample data should be provided to avoid converging on a local optimum. To solve the two problems, the prior information of the utility harmonic source is added to the objective function of ComplexICA; in this paper, the measurement data at PCC when the load is shutdown are chosen as the prior information. Then the utility harmonic source signal can be recovered and the separated matrix can be obtained effectively. The connection between the utility harmonic source, utility harmonic impedance and the data at PCC are established using Norton equivalent circuit, and then the separation matrix is used to calculate utility harmonic impedance. The performance and feasibility of the proposed method are verified by the computer simulation and field test. Compared with the current ComplexICA method, the proposed method is more adaptive to changes in the background harmonic and the calculation result is more stable.
Condition Monitoring and Fault Diagnosis of Wind Turbines Gearbox Bearing Temperature Based on Kolmogorov-Smirnov Test and Convolutional Neural Network Model
Authors: Guo Peng , Fu Jian , Yang XiYun
Published: August 2018

Wind turbine condition-monitoring and fault diagnosis have important practical value for wind farms to reduce maintenance cost and improve operating level. Due to the special distribution law of the operating parameters of similar turbines, this paper compares the instantaneous operation parameters of four 1.5 MW turbines with strong correlation of a wind farm. The temperature-power distribution of the gearbox bearings is analyzed to find out the main trend of the turbines and the deviations of individual turbine parameters. At the same time, for the huge amount of data caused by the increase of turbines number and monitoring parameters, this paper uses the huge neural network and multi-hidden layer of a convolutional neural network to model historical data. Finally, the rapid warning and judgment of gearbox bearing over-temperature faults proves that the monitoring method is of great significance for large-scale wind farms.
The Stability Analysis of a Multi-Port Single-Phase Solid-State Transformer in the Electromagnetic Timescale
Authors: Wang Rui , Sun Qiuye , Cheng Qifu , Ma Dazhong
Published: August 2018

This paper proposes an overall practical stability assessment for a multi-port single-phase solid-state transformer (MS3T) in the electromagnetic timescale. When multiple stable subsystems are combined into one MS3T, the newly formed MS3T has a certain possibility to be unstable. Thus, this paper discusses the stability assessment of the MS3T in detail. First and foremost, the structure of the MS3T and its three stage control strategies are proposed. Furthermore, the stability analysis of each of the MS3T’s subsystems is achieved through the closed loop transfer function of each subsystem, respectively, including an AC-DC front-end side converter, dual active bridge (DAB) with a high-frequency (HF) or medium-frequency (MF) transformer, and back-end side incorporating DC-AC and dc-dc converters. Furthermore, the practical impedance stability criterion in the electromagnetic timescale, which only requires two current sensors and one external high-bandwidth small-signal sinusoidal perturbation current source, is proposed by the Gershgorin theorem and Kirchhoff laws. Finally, the overall stability assessment, based on a modified impedance criterion for the MS3T is investigated. The overall practical stability assessment of the MS3T can be validated through extensive simulation and hardware results.
Computing the Composition of Ethanol-Water Mixtures Based on Experimental Density and Temperature Measurements
Authors: Danahy Brooks B. , Minnick David L. , Shiflett Mark B.
Published: August 2018

Two correlations were developed to calculate the composition of binary ethanol-water solutions from experimental temperature and density inputs. The first correlation is based on a Redlich-Kister (R-K) expansion and computes mixture composition within an average accuracy of ±0.45 wt.%. The R-K model is a non-linear function of composition and therefore requires the use of an iterative solving tool. A polynomial correlation was additionally developed which utilizes a direct solving method, and computes ethanol composition over a range of 0–100 wt.% [283.15–313.15 K] with an accuracy better than ±0.37 wt.%. The polynomial model is particularly advantageous as it can be tailored to specific composition ranges for increased accuracy. Both correlations are intended to provide a method for monitoring ethanol concentration within a chemical process in real time without off-line sample analysis, allowing for precise in-situ system control and optimization.
Quality Assessment of Fresh Meat from Several Species Based on Free Amino Acid and Biogenic Amine Contents during Chilled Storage
Authors: Triki Mehdi , Herrero Ana M. , Jiménez-Colmenero Francisco , Ruiz-Capillas Claudia
Published: August 2018

This paper studies the changes that occur in free amino acid and biogenic amine contents of raw meats (beef, pork, lamb, chicken and turkey) during storage (2 °C, 10 days). The meat cuts samples were harvested from a retail outlet (without getting information on the animals involved) as the following: Beef leg (four muscles), pork leg (five muscles), lamb leg (seven muscles), turkey leg (four muscles), and chicken breast (one muscle). Meat composition varied according to meat types. In general, pH, microbiology counts, biogenic amine (BA), and free amino acid (FAA) contents were also affected by meat types and storage time (p < 0.05). Chicken and turkey presented the highest levels (p < 0.05) of FAAs. Total free amino acids (TFAA) were higher (p < 0.05) in white meats than in red ones. The behavior pattern, of the total free amino acids precursors (TFAAP) of Bas, was saw-toothed, mainly in chicken and turkey meat during storage, which limits their use as quality indexes. Spermidine and spermine contents were initially different among the meats. Putrescine was the most prevalent BA (p < 0.05) irrespective of species. In general, chicken and turkey contained the highest (p < 0.05) levels of BAs, and TFAAP of BAs. In terms of the biogenic amine index (BAI), the quality of chicken was the worst while beef meat was the only sample whose quality remained acceptable through the study. This BAI seems to be more suitable as a quality index for white meat freshness than for red meat, especially for beef.
Towards the Provision of Accurate Atomic Data for Neutral Iron
Authors: Conroy Andrew , Ramsbottom Catherine , Ballance Connor , Keenan Francis
Published: August 2018

The rich emission and absorption line spectra of Fe I may be used to extract crucial information on astrophysical plasmas, such as stellar metallicities. There is currently a lack, in quality and quantity, of accurate level-resolved effective electron-impact collision strengths and oscillator strengths for radiative transitions. Here, we discuss the challenges in obtaining an accurate model of the neutral iron atom and compare our theoretical fine-structure energy levels with observation for several increasingly large models. Radiative data is presented for several transitions for which the atomic data is accurately known.