bluuebunny/crossref_metadata_2025 huggingface dataset:
Anisotropic full-waveform inversion of crosshole seismic data: A vertical symmetry axis field data application
Authors: Hadden Shaun , Gerhard Pratt R. , Smithyman Brendan
Published: September 2018

Anisotropic waveform tomography (AWT) uses anisotropic traveltime tomography followed by anisotropic full-waveform inversion (FWI). Such an approach is required for FWI in cases in which the geology is likely to exhibit anisotropy. An important anisotropy class is that of transverse isotropy (TI), and the special case of TI media with a vertical symmetry axis (VTI) media is often used to represent elasticity in undeformed sedimentary layering. We have developed an approach for AWT that uses an acoustic approximation to simulate waves in VTI media, and we apply this approach to crosshole data. In our approach, the best-fitting models of seismic velocity and Thomsen VTI anisotropy parameters are initially obtained using anisotropic traveltime tomography, and they are then used as the starting models for VTI FWI within the acoustic approximation. One common problem with the acoustic approach to TI media is the generation of late-arriving (spurious) S-waves as a by-product of the equation system. We used a Laplace-Fourier approach that effectively damps the spurious S-waves to suppress artifacts that might otherwise corrupt the final inversion results. The results of applying AWT to synthetic data illustrate the trade-offs in resolution between the two parameter classes of velocity and anisotropy, and they also verify anisotropic traveltime tomography as a valid method for generating starting models for FWI. The synthetic study further indicates the importance of smoothing the anisotropy parameters before proceeding to FWI inversions of the velocity parameter. The AWT technique is applied to real crosshole field gathers from a sedimentary environment in Western Canada, and the results are compared with the results from a simpler (elliptical) anisotropy model. The transversely isotropic approach yields an FWI image of the vertical velocity that (1) exhibits a superior resolution and (2) better predicts the field data than does the elliptical approach.
Leukocyte receptor tyrosine kinase interacts with secreted midkine to promote survival of migrating neural crest cells
Authors: Vieceli Felipe Monteleone , Bronner Marianne E.
Published: September 2018

Neural crest cells migrate long distances throughout the embryo and rely on extracellular signals that attract, repel and/or stimulate survival to ensure proper contribution to target derivatives. Here, we show that leukocyte receptor tyrosine kinase (LTK), an ALK-type receptor tyrosine kinase, is expressed by neural crest cells during early migratory stages in chicken embryos. Loss of LTK in the cranial neural crest impairs migration and results in increased levels of apoptosis. Conversely, midkine, previously proposed as a ligand for ALK, is secreted by the non-neural ectoderm during early neural crest migratory stages and internalized by neural crest cells in vivo. Similar to loss of LTK, loss of midkine reduces survival of the migratory neural crest. Moreover, we show by proximity ligation and co-immunoprecipitation assays that midkine binds to LTK. Taken together, these results suggest that LTK in neural crest cells interacts with midkine emanating from the non-neural ectoderm to promote cell survival, revealing a new signaling pathway that is essential for neural crest development.
Synthesis of Fe3O4@GSH-Pt NCs Core-Shell Microspheres for Latent Fingerprint Detection
Authors: Huang Rui , Zhang Yuting
Published: September 2018

Positively charged Fe3O4 magnetic nanoparticles were obtained by polyethyleneimine (PEI) as a modification agent. Negatively charged platinum nanoclusters (Pt NCs) were prepared with glutathione (GSH) as reducing agent and protective agent. Finally, spherical fluorescent magnetic nano core-shell microspheres Fe3O4@GSH-Pt NCs were produced through electrostatic adsorption. The magnetic strength was 23.9 emu/g and the fluorescence quantum yield was 8.139%. The experimental results showed that the mean diameter of Fe3O4@GSH-Pt NCs was about 110.3 nm. It emitted red fluorescence at the excitation of 465 nm. Latent fingerprints were directly viewed with excellent ridge details due to the superparamagnetism and excellent fluorescent properties of the prepared Fe3O4@GSH-Pt NCs. Consequently, Fe3O4@GSH-Pt NCs showed great potential in fingerprints detection.
Ocular surface symptoms among individuals exposed to ambient levels of traffic derived air pollution – a cross-sectional study
Authors: Paudel Nabin , Adhikari Sanjeev , Manandhar Sarina , Acharya Ashesh , Thakur Ajit , Shrestha Bhairaja
Published: September 2018

Background: The ocular surface is separated by a thin layer of tear film from outdoor air pollutants making individuals exposed to outdoor air pollution prone to various ocular surface disorders. The aim of this study was to determine the magnitude of ocular surface disorders symptoms among traffic police officers of Kathmandu, Nepal.

Methods: Two hundred traffic police officers working at different traffic police office branches of Kathmandu, Nepal were invited to the police headquarters for eye and vision examination. Among them, 91 individuals (95% males) completed the ocular surface disease index (OSDI) questionnaire and underwent Schirmer’s I tear test.

Results: Symptoms of ocular surface disorders were reported by over 80% of the individuals. Approximately two-fifths of the individuals (38%) reported severe symptoms.  Only 17% of the individuals’ tear secretion was found to be below normal using the Schirmer’s tear test. No significant association was observed between the OSDI score and Schirmer’s tear test scores (r = 0.008, p = 0.94). A weak but significant relationship was observed between the OSDI score and job duration (r=0.21,p = 0.04). Individual exposed to outdoor air pollution for more than 10 years had higher odds of reporting ocular surface complaints as compared to those who were exposed for less than 10 years (OR = 3.94, p = 0.02).

Conclusion: Ocular surface disorder symptoms are common among traffic police officers of Kathmandu, Nepal. The duration of exposure appears to significantly contribute to the increased symptoms in this exposed population.
Preliminary study on the inhibitory effect of seaweed Gracilaria verrucosa extract on biofilm formation of Candida albicans cultured from the saliva of a smoker
Authors: Mubarak Zaki , Humaira Adintya , Gani Basri A. , Muchlisin Zainal A.
Published: September 2018

Background: Candida albicans is an opportunistic fungus that might infect the oral cavity. Increased colony numbers of C. albicans in the mouth can be caused by multiple factors, such as smoking, weakened immune system, antibiotics use and immune-compromised condition. Smoking can increase expression of virulence factors of C. albicans and make it stronger. One virulence factor of C. albicans is biofilm formation. The ability of creating biofilm makes C. albicans more tolerant to commercial antifungal agents. The objective of this preliminary study was to examine the ability of the seaweed G. verrucosa extracts to inhibit the formation of biofilm by C. albicans isolated from the saliva of a smoker.

Methods: The extract of G. verrucosa was prepared by maceration using 96% methanol and subjected for phytochemical analysis. C. albicans was isolated from the saliva of a smoker who voluntarily participated in the study after providing informed consent. In triplicate, the fungus was cultured in the growth medium containing increased concentrations of G. verrucosa (6.25, 12.5, 25, 50, 75 and 100% ).The same reaction using fluconazole 0.31 µg/ml C. albicans was prepared as positive control. Biofilm formation was accessed based on optical density of cell mixtures using an ELISA reader. The data obtained were subjected to Kruskal-Wallis test at a significance limit of 0.05.

Results: Methanol extract of seaweed G. verrucosa contained three bio-active compounds namely steroids, terpenoid, and tannins. Inhibitory activity of seaweed extracts on C. albicans biofilm formation increased as their concentration increased. The highest inhibitory effect was recorded at fungus culture treated with seaweed concentration of 25% at 24 hours of time exposure.

Conclusions: Seaweed G. verrucosa extract contained steroids, terpenoids and tannins that were able to effectively inhibit the formation of biofilm by C. albicans at the concentration of 25% after 24 hours of time exposure.
Case Report: Anesthetic management for Cesarean section in a parturient with unspecified inherited bleeding disorder
Authors: Li Li , Johnsen Jill M. , Doan Chau X. , Bollag Laurent A.
Published: September 2018

Neuraxial anesthesia, as the standard of care for Cesarean deliveries, is associated with decreased blood loss. However, parturients with inherited bleeding disorders are at increased risk for epidural hematomas. A small retrospective study has shown that parturients with known factor deficiencies can safely undergo neuraxial anesthesia once the specific factors are replenished. We present a patient who had a considerably increased risk of peripartum bleeding from an unspecified inherited bleeding disorder and was provided a successful neuraxial anesthetic without complications. We discuss the multidisciplinary approach among the surgeons, anesthesiologists, hematologist, and nursing staff to maximize patient safety and comfort.
Statutory relationship and sex education and health education
Authors: Emmerson Lucy
Published: September 2018

The government has finally published its draft guidance for the new subjects of relationships and sex education and health education. Lucy Emmerson looks at how we can prepare
Families with young children and ‘screen time’
Authors: Livingstone Sonia , Franklin Keely
Published: September 2018

This article will examine the use of digital devices by 0–5 year olds, in light of rising concerns among health visitors. In a context of increasing reliance on digital technologies, public anxiety about the uncertain outcomes for children, and a policy debate that prioritises risks over opportunities, this article offers a balanced assessment of recent evidence that can underpin realistic screen media guidance. While evidence for screen-related risks is less strong than often supposed, it appears that parent–child interaction mitigates any associated harms of screen time, also fostering screen-based learning opportunities. The article concludes with some practical, evidence-based suggestions for health visitors.
Korelasi Panjang Tulang Tibia Terhadap Tinggi Badan Pada Mahasiswa FK UMSU
Authors: Ritonga Putra Diandro Utama , Sutysna Hendra
Published: September 2018

Introduction: Estimation of body height is one of the important parameter in the anthropology forensic, which the body height became the first action in identification. The regression formula using the tibia length, sex, and age might have valid approximation for body height which helpful in clinical context.

Methods: The analytic descriptive researchwith the cross-sectional design was done on 112 subject consist of male and female satisfy inclusion and exclusion criteria. Sample was selected by total sampling technique.

Results: Tibia length resulting correlation ranging between 0,488 and 0,968 (p<0,001). The linear regression formula showed Standard Error of the Estimate (SEE) ranging between 0,810 and 3,495 (p<0,001).

Conclusion: A significant correlation between tibia length and body heightwas found with a strong correlation. Hence, a linear regression formula was derived for the estimation of body height from tibia length.

Keywords: tibia length; body height; regression formula; anthropometry
Easy and efficient chemical sterilization of the culture medium for in vitro growth of gerbera using chlorine dioxide (ClO2)
Authors: Cardoso Jean Carlos , Inthurn Ana Carolina Petit
Published: September 2018

Micropropagation techniques changed the production of clonal plantlets in the world. However, the high costs of micropropagated plantlets continue as the main constraint for the expansion of the technique. This paper aimed to test the use of the chemical sterilization of culture medium using chlorine dioxide (ClO2) for in vitro cultivation of gerbera. There was used gerbera in vitro shoots in the stage of rooting for these experiments, using 0.0035%, 0.0070% and 0.0105% of chlorine dioxide in the culture medium. Also, peracetic acid was tested previously for sterilization, but resulted in microbial contamination. Chemical sterilization of the culture medium was successfully using ClO2 at 0.0035% to 0.0105% (100% decontamination) at rooting and elongation stage of gerbera with production of plantlets with similar (number of leaves, total and root fresh weight) or higher quality (mainly aerial part) at rooting/elongation stage, compared with autoclaved culture medium. The increase of concentration of ClO2 also resulted in increasing of height and fresh weight of aerial part of gerberas. The ClO2 could replace the autoclaving with production of sterilized culture medium without phytotoxic problems to gerbera in vitro cultivation.
Trapeamento de LNAPL observado por meio da técnica de fluorescência induzida por laser (LIF)
Authors: Isler Elias , Teramoto Elias Hideo , Baessa Marcus Paulus Martins , Pede Marco Aurélio Zequim , Kiang Chang Hung
Published: September 2018

Modelos conceituais de áreas contaminadas são, em geral, os primeiros resultados significativos do gerenciamento ambiental. Contudo, é necessário entender a complexidade dos meios contaminados para que seja adotada a melhor alternativa de remediação. A distribuição espacial em subsuperfície da fase liquida não aquosa menos densa que a água (LNAPL – Light Non-Aqueous Phase Liquid), geralmente de elevada variabilidade espacial e, consequentemente, complexa, deve ser mais bem conhecida. Além disso, a flutuação sazonal do nível d’água promove os fenômenos de trapeamento e destrapeamento de LNAPL e define uma zona de redistribuição vertical (smear zone) da contaminação, aumentando a complexidade do cenário. Com o objetivo de preencher lacunas deixadas pelas técnicas convencionais de investigação, foi empregada a técnica de fluorescência induzida por laser (LIF) para avaliação do fenômeno de trapeamento em uma área contaminada por querosene de aviação, situada no interior do estado de São Paulo. Os resultados dos ensaios de fluorescência e medição do nível d’água do aquífero local indicam LNAPL trapeado na porção saturada com limites bem marcados que definem a smear zone. Análises qualitativas revelam similaridade da contaminação na maioria dos pontos investigados, com baixa intensidade de sinal de fluorescência nos menores comprimentos de onda de resposta, compatível com depleção de hidrocarbonetos mais leves pela atenuação natural.
Tax Compliance: Between Intrinsic Religiosity and Extrinsic Religiosity
Authors: Damayanti Theresia Woro
Published: September 2018

This study examined the correlation between intention on tax compliance and tax compliance behavior with the moderating variable of religiosity orientation both intrinsic religiosity and extrinsic religiosity. The religiosity orientation in this study used religiosity orientation commitment, which better illustrates the commitment on religiosity orientation in everyday life rather than to the presence of individuals in a place of worship as in previous studies. The population in this study is individual taxpayer in Central Java; the sample is taken using multi-stage sampling technique. By using PLS, this study showed that there was an influence of the intention to comply on tax compliance. External religiosity orientation was proved to strengthen the influence of the intention to comply on tax compliance while intrinsic religiosity orientation was not. Tax authorities can utilize the finding by conducting a collaboration with religious leaders to provide insight for taxpayers that religious considerations should affect business considerations that religious teaching is the most important thing in the daily lives and there should be a balance between religious teaching and physical life.
Analyzing the Influence of Service Quality towards the Brand Image, Preceived Value, and Brand Loyalty of The Costumers of Heritage Hotel in Malang
Authors: Sjah Muhammad Iskandar
Published: September 2018

Service quality in heritage hotel in the Malang city and brand loyalty have an important role to affect the guests to stay at the hotel, by considering competition in modern time currently. The purpose of this research is to analyze the effect of service quality on brand loyalty, brand image, perceived value, brand image affect brand loyalty, perceived value influence on brand loyalty, and the effect of service quality on brand loyalty which is mediated by brand image and perceived value at Pelangi Hotel Malang. This study uses questionnaires with a total sample of 160 respondents. To get the sample, it uses a purposive sampling. Data were analyzed Â using SPSS (Statistical Package for the Social Science) version 18.0 and Smart Modeling PLS version 2.0. The results of this study indicate that there is a significant-direct effect of service quality on brand loyalty, brand image and perceived value. In addition, brand image also significantly affects brand loyalty. The results also show the effect of perceived value on brand loyalty, and service quality on brand loyalty through brand image and brand loyalty through perceived value.
BEI for Creative Industry In Indonesia
Authors: Premananto Gancar , Hartini Sri , Sulistyawan Jovi
Published: September 2018

The purpose of this research is to provide a description of the implementation of ethics business in creative industry in Indonesia. This study focuses on understanding the Business Ethics Index (BEI) in Indonesia, especially for the creative industry in millennial generation perception. This study uses survey method with 136 respondents who are millennial generation. In addition, this research also uses 3 subsectors, namely culinary industry, art industry, and showbiz industry. Sampling is done by accidental sampling. The measurement of BEI is done using 4 dimensions, namely "personal - vicarious" and "past - future". The result of the study shows that millennial generation in Indonesia is open with global culture. From BEI calculation, it is found that BEI value for creative industry both general and specific in Indonesia get the result above 100 equal to developed country. The result of the research shows that there is no significant difference of BEI between subsector of creative industry in Indonesia and BEI each subsector with BEI categorized industry in Indonesia. This can be interpreted that Y / millennial generation in Indonesia is an open generation, they are not sensitive to ethical behavior in the creative industry
Manuel Cervera-Marzal – Les nouveaux désobéissants : citoyens ou hors-la-loi ?
Authors: Lagasse de Locht Elisabeth
Published: September 2018

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Quentin Deluermoz, Pierre Singaravélou – Pour une histoire des possibles. Analyses contrefactuelles et futurs non advenus
Authors: Fringant Matthias
Published: September 2018

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Georges Vigarello – Le sentiment de soi. Histoire de la perception du corps (XVIe-XXe siècle)
Authors: Buzzi Pierre-Louis
Published: September 2018

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Pascal Martin – Les métamorphoses de l’assurance maladie. Conversion managériale et nouveau gouvernement des pauvres
Authors: Alibert Valentin
Published: September 2018

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IMAGOLOGIA: O ZASTOSOWANIU ETNICZNOŚCI DO NADAWANIA ŚWIATU SENSU
Authors: Leerssen Joep
Published: September 2018

Artykuł przedstawia teorię i metodę imagologii, dyskursywnego studium etnotypów (stereotypowych atrybucji charakteru narodowego). Imagologia posiada znaczącą renomę historyczną i akademicką, ale w świetle ostatnich ustaleń konieczne są przeformułowania, które obejmują: [a] zamianę kategoryzacji tradycji literackich z narodowo-modułowej na podejście polisystemowe; [b] upadek fikcji drukowanej jako przodującego medium narracyjnego na rzecz filmu, telewizji i innych mediów; [c] uświadomienie sobie, że etnotypy często funkcjonują w przysłoniętej formie (wykorzystane ironicznie lub jako „meta-obrazy”, lub ich obecność jest „banalna” albo znajduje się w tle, jako chwilowo zapomniana rama); [d] nowe „krzyżujące się” ujęcie kształtowania się tożsamości; [e] upadek eurocentryzmu i powstanie postnacjonalizmu. Te nowe wyzwania wymagają dopasowania do analizy imagologicznej, a obecny klimat polityki tożsamościowej także zdradza ciągłą, pilną potrzebę, by zwrócić uwagę na to, co pozostaje samym sednem zainteresowania imagologii: dekonstruowanie dyskursu esencjalizmu narodowego i etnicznego.
GRANICE PRZYRODY. NATURA POGRANICZA POLSKO-NIEMIECKIEGO W PERSPEKTYWIE IMAGOLOGICZNEJ
Authors: Praczyk Małgorzata
Published: September 2018

Polityczna decyzja o zmianie granicy pociąga za sobą lawinę konsekwencji, spośród których przesiedlenie ludności (jeśli wówczas następuje) jest najbardziej dramatyczne. Konieczność wytworzenia poczucia wspólnoty narodowej na nowozamieszkałym terytorium wymusza wiele różnorakich działań w sferze zarówno politycznej, jak i społecznej. Pojawienie się Polaków na tzw. Ziemiach Odzyskanych po II wojnie światowej wiązało się z nadaniem temu obszarowi znaczeń potwierdzających jego polskość. Pisma historyków, geografów, językoznawców, ekonomistów czy wreszcie przyrodników publikowane bezpośrednio po wojnie pokazują, w jaki sposób włączano fizyczną, geograficzną przestrzeń i przyrodę w sferę wyobrażoną polskiego narodu. Dekonstrukcja opisów natury tzw. Ziem Odzyskanych ze szczególnym uwzględnieniem granicy polsko-niemieckiej na Odrze pozwala przeanalizować nierozerwalność argumentów przyrodniczych i historycznych jako takich, które warunkują konstytuowanie się narodowej tożsamości Polaków po wojnie.
RUSSIAN, JEWISH OR HUMAN? JEWISH MYSTICAL THOUGHT IN THE POETRY OF BULAT SHALVOVICH OKUDZHAVA
Authors: Kornacka-Sareło Katarzyna Anna
Published: September 2018

While looking at the literary output of Bulat Shalvovich Okudzhava from the perspective of imagology, one can see that the image of “the Other” in the poems of the Russian bard was created, paradoxically, just by this “Other”, and it was not constructed by the images (imagines) intrinsically present in the consciousness of the ethnocentric “Self” or “The Same”. In other words, in the case of Okudzhava’s poetry, the image of “the Other” stands on the basis of some ideas of Jewish mystics and the ones of Jewish philosophers of dialogue (Martin Buber, Franz Rosenzweig and Emmanuel Lévinas). Therefore, the aim of this article was to present the motifs stemming from Jewish mysticism in the poems-songs by Okudzhava which, as it seems, influenced theological, anthropological and ethical views of the bard. The distinctive feature of Okudzhava’s philosophical approach is perceiving every person, regardless of their ethnic or cultural origin, as a being responsible for themselves in the process of constituting themselves in their humanity. The same person is also responsible for other people, for the world of nature, and even for an impersonal and non-anthropomorphic godhead who does not intervene in human affairs. Therefore, Okudzhava – similarly to Jewish mystics – regards the human being as a co-creator of reality, obliged to perform ethically positive acts and respect an old Kabbalistic postulate tikkun ha-olam - “to mend the world”.
ALBO BOKSER, ALBO BANDYTA: ETYCZNY OBRAZ WALCZĄCEGO CIAŁA W LITERATURZE OBOZOWEJ
Authors: Wolski Paweł
Published: September 2018

Autor porównuje dwie wersje opowieści o bokserze-więźniu obozów koncentracyjnych i obozów zagłady Moshé Garbarzu: intymistyczną (Un survivant) i powieściową (Le ring de la mort) w kontekście etycznych wartości, jakie w obu konotuje imaginarium boksu jako zjawiska zawieszonego pomiędzy porządkiem natury i kultury.
Is there a classical role for the clinical laboratory in digital health?
Authors: Ceriotti Ferruccio
Published: September 2018

The classical role of the clinical laboratory, seen as the central place where the samples converge and from where the results are distributed, will be challenged by the development of digital health, the application of information technology (big data) and genomics to health care. When the development of disruptive new technologies will allow the production of accurate results outside the laboratory, its role will dramatically change. However, several factors are slowing down these evolutions. The quality of the existing data is relatively poor: lack of standardization of results, different units, different reference intervals, etc. The lab-on-a-chip technology is still relatively far from broad range application and the costs are higher than the traditional methods. There is the need for regulations of direct to consumer approaches that are posing big ethical problems. In the future, the clinical laboratory will maintain part of the “classical” role in the areas of research education and services. The large production will continue, favored by consolidation and reduction of the number of laboratories. The specialists of laboratory medicine have the task of collaborating with the national scientific societies and with the industry for improving harmonization of all the production phases, thus allowing the production of meaningful big data. Clinical laboratories have the role of implementing translational medicine. The new point-of-care (POC) technologies still need validation, the clinical laboratory is the place to do it. The advisory role toward clinicians and patients has to be improved, and a role in validating laboratory data interpretation apps and in controlling and supervising the functionality and the quality of the POC devices has to be developed.
Congenital complete heart block in pregnancy
Authors: Basri Nurul Iftida , Ahmad Shuhaila
Published: September 2018

Complete heart block (CHB) is infrequently encountered during pregnancy. Its management requires a multidisciplinary approach involving the obstetrician, cardiologist, anesthetist and neonatologist. It varies from conservative, temporary or permanent pacemaker (PPM) insertion (either during the antenatal, intrapartum or postpartum period). We present the case of a 30-year-old, gravida 2 para 1 at the 36-week period of amenorrhea (POA) with congenital CHB. She was asymptomatic throughout her pregnancy despite having a pulse rate between 40 and 50 beats per minute. She delivered a healthy boy via cesarean section due to breech presentation after a failed external cephalic version. A temporary pacemaker was inserted prior to delivery. However, she required permanent insertion of pacemaker during the postpartum period.
Hittite prosody
Authors: Sideltsev Andrei V.
Published: September 2018

This paper deals with the prosody of the Hittite sentence connectives nu, šu, ta. It is argued that bare sentence connectives are unstressed, being proclitics, whereas sentence connectives+ encliticsare stressed. Some implications for diachronic and synchronic phonology of Hittite are also discussed.
Indo-European *pr- and *pr̥h₂- ‘before, in front of’
Authors: Svensson Miguel Villanueva
Published: September 2018

All Indo-European languages present local adverbs and other derivatives from a basic root *per-, e.g. Gk. πρό, πρότι, περί, παρά, πάρος, πρίν, πρῶτος/πρᾶτος, etc. It is generally agreed that the data point to two root variants, *pr-and *pr̥h₂-, but the origin of the extra *‑h₂‑has never been satisfactorily explained. In this article it is argued that the variation *pr-~ *pr̥h₂-is exclusively found in local adverbs from an archaic root noun *per-/*pr-and that it originated in false segmentation of the PIE (Indo-Hittite) directive case *pr̥‑h₂á(viz.its locativization *pr̥‑h₂ái). The spread of *pr̥h₂-at the expense of *pr-took place almost entirely in dialectal Indo-European.
Exploration of Chemical Reaction Effects on Entropy Generation in Heat and Mass Transfer of Magneto-Jeffery Liquid
Authors: Mohapatra R. , Mahanthesh B. , Gireesha B.J. , Mishra S.R.
Published: September 2018

In many chemical engineering processes, a chemical reaction between a foreign mass and the fluid does occur. These processes find relevance in polymer production, oxidation of solid materials, ceramics or glassware manufacturing, tubular reactors, food processing, and synthesis of ceramic materials. Therefore, an exploration of homogeneous first-order chemical reaction effects on heat and mass transfer along with entropy analysis of Jeffrey liquid flow towards a stretched isothermal porous sheet is performed. Fluid is conducting electrically in the company of transverse magnetic field. Variations in heat and mass transfer mechanisms are accounted in the presence of viscous dissipation, heat source/sink and cross-diffusion aspects. The partial differential equations system governing the heat transfer of Jeffery liquid is reformed to the ordinary differential system through relevant transformations. Numerical solutions based on Runge-Kutta shooting method are obtained for the subsequent nonlinear problem. A parametric exploration is conducted to reveal the tendency of the solutions. The present study reveals that the Lorentz force due to magnetism can be used as a key parameter to control the flow fields. Entropy number is larger for higher values of Deborah and Brinkman numbers. It is also established that the concentration species field and its layer thickness of the Jeffery liquid decreases for a stronger chemical reaction aspect. To comprehend the legitimacy of numerical results a comparison with the existing results is made in this exploration and alleged an admirable agreement.
Entropy Generation and Activation Energy Impact on Radiative Flow of Viscous Fluid in Presence of Binary Chemical Reaction
Authors: Ijaz Khan M. , Ahmad Salman , Hayat T. , Alsaedi A.
Published: September 2018

The main theme of this paper is to investigate entropy generation analysis for unsteady three-dimensional flow of viscous (Newtonian) fluid between two horizontal parallel plates. Lower plate is porous and stretching while upper plate squeezed downward. Further effects of nonlinear thermal radiation, viscous dissipation, heat source/sink and activation energy are accounted. Entropy generation rate calculated in terms of thermal radiation, fluid diffusion and fluid friction. Transformations procedure used lead to reduction of PDE’s into ordinary ones. Built-in-Shooting technique is used for the computational analysis. Impacts of different flow variables on temperature, velocity, concentration, volumetric entropy generation and Bejan number are discussed and presented through graphs. Temperature and concentration gradient are discussed numerically. It is examined from obtained results that velocity of liquid particle decays through larger estimation of squeezing parameter. It is also examined that temperature distribution enhances for higher estimation of radiative heat flux. Moreover temperature and concentration gradient increase for larger squeezing parameter.
A case of Graves’ disease associated with membranoproliferative glomerulonephritis and leukocytoclastic vasculitis
Authors: Keenswijk Werner , Degraeuwe Eva , Hoorens Anne , Dorpe Jo Van , Vande Walle Johan
Published: September 2018

Background

The association of hyperthyroidism with renal disease is very rare and the importance of timely clinical recognition cannot be overemphasized.

Case presentation

An 11-year-old girl presented with gastrointestinal symptoms while hypertension, edema and abdominal pain were noticed on clinical examination. Laboratory investigation revealed: hemoglobin 9.4 (11.5–15.5) g/dL, total white cell count 16 (4.5–12)×109/L, platelets 247 (150–450)×109/L, C-reactive protein (CRP) 31.8 (<5) mg/L, blood urea nitrogen (BUN) 126 (13–43) mg/dL, creatinine 0.98 (0.53–0.79) mg/dL, albumin 25 (35–52) g/dL, complement factor C3 0.7 (0.9–1.8) g/L, complement factor C4 0.1 (0.1–0.4) g/L, tri-iodothyronine 6.5 (2.5–5.2) pg/mL, free thyroxine 2.4 (1–1.7) ng/dL, thyroid stimulating hormone (TSH) <0.02 (0.5–4.3) mU/L. Urinalysis showed nephrotic range proteinuria. Renal function deteriorated necessitating hemodialysis (HD). A renal biopsy revealed an immune complex-mediated membranoproliferative glomerulonephritis (MPGN). Elevated thyroid hormones and suppressed TSH levels with elevated thyroperoxidase antibodies and thyroid stimulating immunoglobulins confirmed the diagnosis of Graves’ disease. Corticosteroids were commenced and eventually thiamazole was added with gradual improvement of renal function, cessation of HD and discharge from the hospital.

Conclusions

Graves’ disease complicated by MPGN is extremely rare, but can cause life-threatening complications.
Rational exponential solutions of conformable space-time fractional equal-width equations
Authors: Zafar Asim
Published: September 2018

In this paper, the rational exponential solutions of two space-time fractional equal-width (FEW) equations are explored in the conformable derivative sense. The way to reach explicit exact solutions is to transform the fractional order PDEs into a nonlinear ODEs of discrete order through some properties of conformable derivatives and a fractional complex transforms. The subsequent equations have been elucidated by employing theexpafunction approach. Some new exact solutions of the said equations are effectively formulated and graphically conveyed with the aid of symbolic computation in Mathematica and MATLAB respectively.
A biosemiotic reading of Michel Onfray’sCosmos: Rethinking the essence of communication from an ecocentric and scientific perspective
Authors: Moser Keith
Published: September 2018

InCosmos, Onfray argues in favor of a (re-) conceptualization of communication based on recent scientific discoveries. Similar to many researchers in the field of biosemiotics, the controversial philosopher posits that all life forms engage in constant semiosis. As opposed to being a singular characteristic that only homo sapiens possess, Onfray contends that all organisms are endowed with semiosic faculties that enable them to exchange information in purposeful and meaningful ways. Appealing to scientific logic, the philosopher debunks the common misconception that non-human vocalizations are merely the product of an internal machinery. Onfray offers concrete examples from both the animal and plant kingdom illustrating the astounding complexity of non-human semiosis. Nonetheless, in his reflections about the advent of hyperreality, the philosopher nuances his philosophical position by underscoring what makes the human primary modelling device of “language” the most sophisticated form of semiosis that exists in the biosphere. Although all material beings communicate with each other effectively in order to survive, to relate to each other, and to reproduce, Onfray recognizes that humans appear to have a heightened predisposition for symbolic exchange. The philosopher affirms that the human Umwelt is the richest and most complex semiotic space of all. Due to the pervasive nature of human semiosis in the modern world that threatens the ability of other life forms to create, stockpile, emit, and interpret signs, the philosopher also insists that preserving the fragile semiosic diversity of the “soundscape” is the key to averting the impending, anthropogenic eco-apocalypse.
Gesetzesevaluation und Wirkungsforschung im Sozialrecht: Eine problemorientierte Betrachtung aus den Niederungen von Auftragsforschung und Wirkungsanalyse im Bereich der Arbeitsmarktpolitik
Authors: Lenhart-Roth Karin , Wagner Alexandra
Published: September 2018

Die Autorinnen diskutieren Anforderungen und Praxis der retrospektiven Gesetzfolgenabschätzung am Beispiel der arbeitsmarktpolitischen Wirkungsforschung in Deutschland nach Umsetzung der Arbeitsmarktreformen Anfang der 2000er Jahre (sogenannte Hartz-Gesetze). Sie bieten mit ihrem Beitrag keine umfassende wissenschaftliche Analyse dieser Wirkungsforschung, sondern stellen vielmehr vor dem Hintergrund eigener Beteiligung an mehreren Evaluationsprojekten kritische Fragen zur Auftragsforschung, die sich im Spannungsfeld zwischen der Dienstleistungserbringung für einen Akteur mit selektiven politischen Verwertungsinteressen einerseits und den Anforderungen an kritische Wissenschaft andererseits bewegt. Die Autorinnen beschreiben dieses Dilemma und entwickeln Vorschläge, wie die arbeitsmarktpolitische Wirkungsforschung durch Transparenz und Demokratisierung sowie die stärkere Einbeziehung der verantwortlich handelnden Akteure und der Betroffenen verbessert werden kann. Insbesondere sollte die Wirkungsforschung durch einen transparenten Diskurs über die Widersprüche und Interessensgegensätze begleitet werden.
Original Techniques of the High Precision Automatic Impact Test Device
Authors: Yang Wendou , Yang Wen , Tong Zhenfeng , Zhang Changyi , Ning Guangsheng , Zhong Weihua
Published: September 2018

Irradiation embrittlement testing of reactor pressure vessel (RPV) steel is essential to the surveillance experiment of nuclear power plant safety and requires high precision, high reliability, high repeatability, and high stability (4-High). It is very difficult to achieve the 4-High requirements of the remote control automatic impact test device in the hot cell. This article introduces our original designs of the obverse straight transfer specimen: the direct centering of the specimen notch and solid bath furnace. Aside from the common motor and automatic release pendulum device of automatic impact testing, the original new techniques of the automatic impact test consist of only two actuators (the push specimen plate and the notch automatic centering device). This innovative technique has successfully guaranteed the 4-High test results; it has simplified the track, reduced the number of steps, minimized the number of actuators of the automatic impact test, shortened transfer specimen time, and improved the precision of temperature control and notch centering. Through the successful use of this original technique, we have replaced the usual lateral transfer specimen and indirect centering of specimen notch with the obverse straight transfer specimen and direct centering of specimen notch. By adopting only one actuator, our technique has easily resolved the difficulties of terminal rebound and the disturbance and dislocation of the specimen. The operation has combined specimen transfer and centering into one step, which has smoothly overcome the difficult problems of instant specimen transfer, notch centering, and compression so that the specimen touches the test anvil closely. In sum, these innovative techniques have streamlined the complicated and rapid process of automatic impact testing into a simple and easy process.
Studies on Intergranular Corrosion Characteristics of Cast Duplex Stainless Steel Stabilized with Niobium
Authors: Aneesh Kumar P. , Kumaresh Babu S. P. , Thirumaran B.
Published: September 2018

To study intergranular corrosion (IGC) characteristics, two cast grades of duplex stainless steels, 5A and 5A stabilized with niobium, were produced in a vacuum induction melting furnace. The samples were tested under three different heat-treatment conditions that were selected using a property diagram generated through the TCFE8 database of the Thermo-Calc® software (Thermo-Calc Software, Solna, Sweden). A Feritscope FMP30® (Fischer Technology, Inc., Windsor, CT) was used to measure the ferrite phase content in the samples and compared with that specified in the property diagram. Metallurgical characteristics were analyzed through optical microscopy, scanning electron microscopy, energy dispersive spectroscopy, and X-ray diffractometry. Each heat-treated sample possessed a distinct texture due to the formation of various intermetallic phases in the alloy. The corrosion behavior of the samples was studied using an oxalic acid etch test. Double-loop electrochemical potentiokinetic reactivation and sulfuric acid tests were conducted on the niobium-stabilized samples, and the results demonstrated that the samples possess superior resistance to corrosion compared to those not stabilized with niobium. The addition of niobium produced a mixture of niobium compounds that suppressed the chromium depletion and reduced the degree of sensitization. This study demonstrated the potential of using niobium as a stabilizer in the duplex stainless steel alloy to considerably reduce IGC.
T-Source Inverter-Based Sensorless Speed Control for Permanent Magnet Synchronous Motor
Authors: Selvam Dineshkumar , Subbaian Senthilkumar , Ananthan Bhuvanesh , Rameshkumar Thangasankaran
Published: September 2018

Permanent magnet synchronous motors (PMSM) are used commonly in numerous industrial applications, for instance, in mechatronics, vacuum pumps, energy storage flywheels, automotive, centrifugal compressors, and robotics. Nowadays, the sensorless speed control of PMSM is getting more attention, and several studies are progressing because of its low cost and reliable features. Normally, the speed control methods in PMSM are achieved with the help of sensors for position or speed estimation and control. But, these sensors are easily prone to breakage. Also, the flexibility towards parameter variations is poor in the conventional speed control methods. So, a sensorless T-source inverter-based PMSM drive that integrates the Proportional Integral (PI) controller with an adaptive mechanism to cope with the time-varying system parameters is proposed in this article. A sensorless module, namely, a model reference adaptive system (MRAS), is employed to estimate the rotor position of PMSM based on its performance characteristics Simulation results are illustrated to investigate the performance of the proposed method with different speeds under no load and loaded conditions. Moreover, the proposed approach not only minimizes the cost and size of the motor but also maximizes the reliability and accuracy.
Measurement of Pamong Performance in Agency Early Childhood Education Development and Community Education
Authors: Rahmat Abdul , Badu Syamsu Qamar
Published: September 2018

Work productivity is the ability associated with the mental attitude of a pamong in making improvements and self-improvement in carrying out its professional duties so as to realize the hope and desire of the nation to achieve the better quality of education. The objective to be achieved by doing this research is to see the productivity measurement of pamong work and to know which variable the most dominant influence on the productivity of pamong work is. This research was conducted at Agency Early Childhood Education Development and Community Education Gorontalo 2018. To collect data in this research, field research method is used, that is research done directly to the research object. The techniques used are interviews, documentation, and questionnaires. The population in this study is the civil servant, technically the writer cannot examine each tutor or individual. Where the sampling method is done by using a random sampling technique. To obtain the data needed in this study used questionnaire survey techniques. From result of regression analysis showed that work productivity is influenced by five motivation motivation, physiological requirement (X1) = 0.699, need for safety (X2) = 0.720, social needs (X3) = 0.706, need for achievement (X4) = 0.677, self-actualization needs (X5) = 0.542. While the most dominant variable affecting the productivity of the civil service is the need for a sense of security of 0.720. There is an influence of motivation and partially significant effect seen from the fifth attribute, that is a physiological requirement for count equal to (2,540), need for security for count (3,869), social requirement for count (3,163), need for achievement the value of t count is (2.294), the need for self-actualization for the value of t count is (3.127). and together influence work productivity is seen from the value of table as much as (54,490).
Enzalutamide therapy for advanced prostate cancer: efficacy, resistance and beyond
Authors: Linder Simon , van der Poel Henk G , Bergman Andries M , Zwart Wilbert , Prekovic Stefan
Published: September 2018

The androgen receptor drives the growth of metastatic castration-resistant prostate cancer. This has led to the development of multiple novel drugs targeting this hormone-regulated transcription factor, such as enzalutamide – a potent androgen receptor antagonist. Despite the plethora of possible treatment options, the absolute survival benefit of each treatment separately is limited to a few months. Therefore, current research efforts are directed to determine the optimal sequence of therapies, discover novel drugs effective in metastatic castration-resistant prostate cancer and define patient subpopulations that ultimately benefit from these treatments. Molecular studies provide evidence on which pathways mediate treatment resistance and may lead to improved treatment for metastatic castration-resistant prostate cancer. This review provides, firstly a concise overview of the clinical development, use and effectiveness of enzalutamide in the treatment of advanced prostate cancer, secondly it describes translational research addressing enzalutamide response vs resistance and lastly highlights novel potential treatment strategies in the enzalutamide-resistant setting.
Analysis of Nosocomial Infections in Post–Cardiac Surgery Extracorporeal Membrane Oxygenation Support Therapy
Authors: Li Binfei , Sun Geqin , Cheng Zhou , Mei Chuangchuang , Liao Xiaozu , Li Jianwei , Yuan Yong
Published: September 2018

Objectives: This study aims to analyze the nosocomial infection factors in post–cardiac surgery extracorporeal membrane oxygenation (ECMO) supportive treatment (pCS-ECMO).

Methods: The clinical data of the pCS-ECMO patients who obtained nosocomial infections (NI) were collected and analyzed retrospectively. Among the 74 pCS-ECMO patients, 30 occurred with NI, accounting for 40.5%; a total of 38 pathogens were isolated, including 22 strains of Gram-negative bacteria (57.9%), 15 strains of Gram-positive bacteria (39.5%), and 1 fungus (2.6%).

Results: Multidrug-resistant strains were highly concentrated, among which Acinetobacter baumannii and various coagulase-negative staphylococci were the main types; NI was related to mechanical ventilation time, intensive care unit (ICU) residence, ECMO duration, and total hospital stay, and the differences were statistically significant (P < .05). The binary logistic regression analysis indicated that ECMO duration was a potential independent risk factor (OR = 0.992, P = .045, 95.0% CI = 0.984-1.000).

Conclusions: There existed significant correlations between the secondary infections of pCS-ECMO and mechanical ventilation time, ICU residence, ECMO duration, and total hospital stay; therefore, hospitals should prepare appropriate preventive measures to reduce the incidence of ECMO secondary infections.