bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tingkat Dukungan Orang Tua Terhadap Belajar Siswa
Authors: Sinaga Juster Donal 
Published: February 2018

THE LEVEL OF PARENTS SUPPORT TO LEARN CHILDREN. This study aims to describe the level of parents support to learn children. The results of this study serve as the basic design of home visit services as one way to improve the parent support system in learning children. This research is a quantitative research. The subjects of this study were students of grade VIII at SMPN 31 Purworejo which amounted to 31 students. The research data was collected using Parent/Guardian Support Questionnaire to Child Learning and Questionnaire of Child's Opinion on Support of Parent/Guardian developed by the researcher from Ariffin concept (1992) with the number of items of each instrument as much as 40. Reliability value of instrument were calculated using Cronbach Alpa formula of 0,886. The data were analyzed by descriptive statistic using mean, mean, average, and standard deviation. Descriptions go through the categorization of normal distribution by category: very high, high, medium, low, and very low. The findings of this study show that 41% of parents/guardians have support for children's learning in very high category, 45,1% of high category, and 12,9% of moderate category. Based on the opinion of the students, there are 45,1% students who believe that the carrying capacity of the parents/guardian to the learning of the child is in very high category, 45,1% of the high category, 6,4% of the medium category, and found 3,2% of the low category. These findings serve as a basis for providing trajectory to parents to improve parental support systems for child learning.
Analisis Penerapan Overall Equipment Effectiveness Pada Mesin Power Press Combination Forming 60T
Authors: Rusdi Widya Adi 
Published: February 2018

Corrective action on the engine damage is a temporary emergency measure, so further action is required by conducting maintenance activities, prevention of damage (Preventive maintenance), and able to detect abnormal symptoms before the machine breakdown occurs. The sudden impact of machine damage resulted in disruption of planned production performance so that it is necessary to identify and analyze the factors that cause the machine damage. Establish maintenance method using Autonomous Maintenance, Preventive Maintenance and Reliability Centered Maintenance (RCM) concept to prevent machine failure from the beginning, through fault tree analysis (FTA) method, failure mode effect, and analysis (FMEA), mean time between failure (MTBF ) is an analytical activity for implementing RCM systems on machines and critical components, able to identify and detect symptoms of malfunction before the machine is damaged. The results of the research get better application of maintenance system so that identification of important components can be anticipated from the symptoms of damage. Overall, there is an increase in performance seen from the increase of Overall Equipment Effectiveness (OEE) value, still expected to continue to increase according to JIPM 85% standard value. In conclusion FMEA, FTA, MTBF analysis method can be used to build autonomous maintenance, preventive maintenance and reliability centered maintenance so as to facilitate the production and maintenance in determining the proper maintenance of the machine.
Las industrias culturales y creativas en las comunidades autónomas españolas: El caso Cataluña
Authors: Murciano Martínez Marcial , González Saavedra Carlos 
Published: February 2018

Las Industrias Culturales y Creativas (ICC) forman un ecosistema que puede beneficiarse de entornos socioeconómicos favorables y de las oportunidades abiertas por el cambio tecnológico. El presente artículo constata la existencia de correlaciones entre los indicadores que permiten contextualizar las actividades creativas y culturales en el marco autonómico español, en general, y en Cataluña en particular. El PIB per cápita y el nivel de formación se retroalimentan positivamente; la educación se asocia a una menor tasa de riesgo de pobreza y a un elevado índice de oportunidades, infraestructuras y usos digitales; y la disponibilidad y manejo intensivo de las tecnologías de la información y las comunicaciones (TIC) es inherente a un mayor consumo cultural y al disfrute de unas condiciones económicas favorables. La metodología utilizada para el análisis muestra por primera vez el peso desagregado de las ICC en Cataluña, y su relación con el resto de las comunidades autónomas de España.
De eerste prejudiciële procedure over de Europese Concentratiecontroleverordening ooit: over Oostenrijks asfalt en de invulling van het begrip ‘joint venture’
Authors: Houdijk J.C.A. , Jaspers R.M.T.M. 
Published: February 2018

De eerste prejudiciële procedure over de Europese Concentratiecontroleverordening ooit: over Oostenrijks asfalt en de invulling van het begrip ‘joint venture’
In de zaak Austria Asphalt heeft het Hof van Justitie voor wat betreft de toepassing van de EU-Concentratieverordening bepaald dat bij een wijziging van uitsluitende naar gedeelde zeggenschap over een bestaande onderneming pas sprake is van een concentratie indien de gemeenschappelijke onderneming die uit een dergelijke transactie voortkomt duurzaam alle functies van een zelfstandige economische eenheid vervult.HvJ 7 september 2017, zaak C-248/16, Austria Asphalt GmbH/Bundeskartellanwalt, ECLI:EU:C:2017:643
Residual Strength Analysis of a Damaged WWII T2 Tanker
Authors: Bonnici Colin , De Marco Muscat-Fenech Claire , Ghirlando Robert 
Published: February 2018

The S.S. Ohio, the T2 tanker that replenished Malta during the Second World War in 1942 saved the Islands from capitulation. En route, the tanker was bombarded and heavily damaged but remained afloat. This historic event provided a research opportunity to analyze the tanker's residual strength and how she survived. A strength assessment of the damaged hull indicated that the S.S. Ohio was at risk of collapse. However, simple beam theory indicated that when least damaged, large bending moments were exerted on the ship's midship but diminished with further damage, providing evidence on how the S.S. Ohio survived, shedding light on this 75-year-old mystery.

1. Introduction
The T2 tanker, S.S. Ohio, is enshrined in the Maltese history as the saver of the islands during the Second World War (WWII). On the 15th of August 1942, the S.S. Ohio was towed into the Grand Harbour of Valletta, Malta, carrying vital oil replenishments essential to continue the fight against the enemy. Had it not been for the cargo the T2 tanker was carrying, the island fortress of Malta would have capitulated to the Axis Powers within 3 weeks (Caruana 1992; Holland 2003; Pearson 2004). En route to Malta, knowing how important the oil tanker was to the survival of the Maltese, the Axis Powers attacked her relentlessly, inflicting heavy damage. Yet the tanker remained afloat, but on the brink of sinking. Those living and witnessing the event were mesmerized on how the S.S. Ohio survived. The historians hypothesize that the tanker survived without breaking in half, thanks to her adequately strengthened and fully welded hull which was capable to withstand such an onslaught (Shankland & Hunter 1983). Thus, through this historic event, a research opportunity was identified. A residual strength analysis was conducted to assess the damage sustained, with the main aim to confirm or disprove the historical hypothesis.
Mars Climate History: Insights From Impact Crater Wall Slope Statistics
Authors: Kreslavsky Mikhail A. , Head James W. 
Published: February 2018

AbstractWe use the global distribution of the steepest slopes on crater walls derived from Mars Orbiter Laser Altimeter profile data to assess the magnitudes of degradational processes with latitude, altitude, and time. We independently confirm that Amazonian polar/high‐latitude crater slope modification is substantial, but that craters in the low latitudes have essentially escaped significant slope modification since the Early Hesperian. We find that the total amount of crater wall degradation in the Late Noachian is very small in comparison to the circumpolar regions in the Late Amazonian, an observation that we interpret to mean that the Late Noachian climate was not characterized by persistent and continuous warm and wet conditions. A confirmed elevational zonality in degradation in the Early Hesperian is interpreted to mean that the atmosphere was denser than today.
A Surface “Superconvergence” Pathway Connecting the South Indian Ocean to the Subtropical South Pacific Gyre
Authors: Maes C. , Grima N. , Blanke B. , Martinez E. , Paviet‐Salomon T. , Huck T. 
Published: February 2018

AbstractWe study the dispersion and convergence of marine floating material by surface currents from a model reanalysis that represents explicitly mesoscale eddy variability. Lagrangian experiments about the long‐term evolution (29 years) of an initially homogeneous concentration of particles are performed at global scale with horizontal current at one fourth degree resolution and refreshed daily over the 1985–2013 period. Results not only confirm and document the five known sites of surface convergence at the scale of individual oceanic basins but also reveal a convergent pathway connecting the South Indian subtropical region with the convergence zone of the South Pacific through the Great Australian Bight, the Tasman Sea, and the southwest Pacific Ocean. This “superconvergent” pathway at the ocean surface is robust and permanent over a distance longer than 8,000 km. The current variability is crucial to sustain this pathway.
New High‐Pressure Phase of CaCO3 at the Topmost Lower Mantle: Implication for the Deep‐Mantle Carbon Transportation
Authors: Li Xinyang , Zhang Zhigang , Lin Jung‐Fu , Ni Huaiwei , Prakapenka Vitali B. , Mao Zhu 
Published: February 2018

AbstractIn this study, we have investigated the stability of CaCO3 at high pressures and temperatures using synchrotron X‐ray diffraction in laser‐heated diamond anvil cells. Our experimental results have shown that CaCO3 in the aragonite structure transforms into CaCO3‐VII (P21/c) at 27 GPa and 1,500 K with a negative Clapeyron slope of −4.3(9) MPa/K. CaCO3‐VII is stable between 23 and 38 GPa at 2,300 K and transforms into post‐aragonite at 42 GPa and 1,400 K. Furthermore, it reacts with stishovite, an abundant form of SiO2 in subducted oceanic crust, forming CaSiO3‐perovskite. The occurrence of CaSiO3‐perovskite via the reaction of CaCO3‐VII and stishovite provides an explanation for the observation of the high concentrations of CaSiO3‐perovskite and some amount of CaCO3 in deep‐mantle inclusions. CaCO3‐VII is thus an important carbon‐bearing phase at the topmost lower mantle and may provide necessary carbon to produce deep‐mantle diamonds.
Combining InSAR and GPS to Determine Transient Movement and Thickness of a Seasonally Active Low‐Gradient Translational Landslide
Authors: Hu Xie , Lu Zhong , Pierson Thomas C. , Kramer Rebecca , George David L. 
Published: February 2018

AbstractThe combined application of continuous Global Positioning System data (high temporal resolution) with spaceborne interferometric synthetic aperture radar data (high spatial resolution) can reveal much more about the complexity of large landslide movement than is possible with geodetic measurements tied to only a few specific measurement sites. This approach is applied to an ~4 km2 reactivated translational landslide in the Columbia River Gorge (Washington State), which moves mainly during the winter rainy season. Results reveal the complex three‐dimensional shape of the landslide mass, how onset of sliding relates to cumulative rainfall, how surface velocity during sliding varies with location on the topographically complex landslide surface, and how the ground surface subsides slightly in weeks prior to downslope sliding.
Diverse Electron and Ion Acceleration Characteristics Observed Over Jupiter's Main Aurora
Authors: Mauk B. H. , Haggerty D. K. , Paranicas C. , Clark G. , Kollmann P. , Rymer A. M. , Peachey J. M. , Bolton S. J. , Levin S. M. , Adriani A. , Allegrini F. , Bagenal F. , Bonfond B. , Connerney J. E. P. , Ebert R. W. , Gladstone G. R. , Kurth W. S. , McComas D. J. , Ranquist D. , Valek P. 
Published: February 2018

AbstractTwo new Juno‐observed particle features of Jupiter's main aurora demonstrate substantial diversity of processes generating Jupiter's mysterious auroral emissions. It was previously speculated that sometimes‐observed potential‐driven aurora (up to 400 kV) can turn into broadband stochastic acceleration (dominating at Jupiter) by means of instability. Here direct evidence for such a process is revealed with a “mono‐energetic” electron inverted‐V rising in energy to 200 keV, transforming into a region of broadband acceleration with downward energy fluxes tripling to 3,000 mW/m2, and then transforming back into a mono‐energetic structure ramping down from 200 keV. But a second feature of interest observed nearby is unlikely to have operated in the same way. Here a downward accelerated proton inverted‐V, with inferred potentials to 300–400 kV, occurred simultaneously with downward accelerated broadband electrons with downward energy fluxes as high as any observed (~3,000 mW/m2). This latter feature has no known precedent with Earth auroral observations.
Excitation of O+ Band EMIC Waves Through H+ Ring Velocity Distributions: Van Allen Probe Observations
Authors: Yu Xiongdong , Yuan Zhigang , Huang Shiyong , Yao Fei , Wang Dedong , Funsten Herbert O. , Wygant John R. 
Published: February 2018

AbstractA typical case of electromagnetic ion cyclotron (EMIC) emissions with both He+ band and O+ band waves was observed by Van Allen Probe A on 14 July 2014. These emissions occurred in the morning sector on the equator inside the plasmasphere, in which region O+ band EMIC waves prefer to appear. Through property analysis of these emissions, it is found that the He+ band EMIC waves are linearly polarized and propagating quasi‐parallelly along the background magnetic field, while the O+ band ones are of linear and left‐hand polarization and propagating obliquely with respect to the background magnetic field. Using the in situ observations of plasma environment and particle data, excitation of these O+ band EMIC waves has been investigated with the linear growth theory. The calculated linear growth rate shows that these O+ band EMIC waves can be locally excited by ring current protons with ring velocity distributions. The comparison of the observed wave spectral intensity and the calculated growth rate suggests that the density of H+ rings providing the free energy for the instability has decreased after the wave grows. Therefore, this paper provides a direct observational evidence to the excitation mechanism of O+ band EMIC waves: ring current protons with ring distributions provide the free energy supporting the instability in the presence of rich O+ in the plasmasphere.
PSMD7 downregulation induces apoptosis and suppresses tumorigenesis of esophageal squamous cell carcinoma via the mTOR/p70S6K pathway
Authors: Shi Ke , Zhang Jin‐zhong , Zhao Rui‐li , Yang Liang , Guo Dan 
Published: February 2018

PSMD7, a 19S proteasome subunit, is overexpressed in most carcinoma cells. It forms a dimer with PSMD14 that functions in the removal of attached ubiquitin chain. However, there is little knowledge about the cellular mechanism of PSMD7 and its exact biological function, especially in cancer cells. In this study, we explored the role of PSMD7 in proliferation, cell cycle, apoptosis, and proteasomal proteolysis in the esophageal squamous cell carcinoma (ESCC) cell line EC9706. Our results showed that PSMD7 was highly expressed in ESCC cells. Downregulation of PSMD7 by lentivirus‐mediated shRNA led to decreased proliferation, increased cell apoptosis, and reduced proteasomal function. Notably, lower expression level of mTOR and p70S6K and suppressed activity of mTOR/p70S6K pathway were detected after PSMD7 downregulation. By contrast, increased expression of p‐mTORSer2448 and p‐p70S6KThr421/Ser424 was discovered upon PSMD7 overexpression in Het‐1A cells. Furthermore, PSMD7 downregulation contributed to decelerated tumor growth, inhibition of proteasomal function, induced cell apoptosis and attenuated activity of mTOR/p70S6K pathway in vivo. These findings suggest that PSMD7 and the mTOR/p70S6K pathway may be a promising candidate for developing therapies for ESCC.
Synthesis of β‐Naphthols and Naphthofuranones from ortho‐Alkynylarylketones via Sequential AgTFA‐Catalyzed Ketonization–Intramolecular Aldol Condensation: A Total Synthesis of Negundin A
Authors: Nimnual Phongprapan , Norseeda Krissada , Akkachairin Bhornrawin , Tummatorn Jumreang , Laohapaisan Pavitra , Supantanapong Nantamon , Chuangsoongnern Pennapa , Thongsornkleeb Charnsak , Sittihan Satapanawat , Ruchirawat Somsak , Rodphon Warabhorn 
Published: February 2018

AbstractA sequential synthesis of β‐naphthols and naphtho[2,3‐b]furan‐2(3H)‐ones (naphthofuranones) has been developed using ortho‐alkynylarylketones as the substrates. The AgTFA‐catalyzed ketonization generated the corresponding 1,5‐diketone intermediates in situ; these were further cyclized via aldol condensation under basic conditions to obtain β‐naphthol products in moderate to good yields. For the synthesis of naphtho[2,3‐b]furan‐2(3H)‐ones, an additional lactonization step was applied to give a broad range of products in good yields. Moreover, this method has also been utilized in the synthesis of natural product negundin A.
Corticosteroid nasal irrigations are more effective than simple sprays in a randomized double‐blinded placebo‐controlled trial for chronic rhinosinusitis after sinus surgery
Authors: Harvey Richard J. , Snidvongs Kornkiat , Kalish Larry H. , Oakley Gretchen M. , Sacks Raymond 
Published: February 2018

BackgroundPersistent mucosal inflammation in patients with chronic rhinosinusitis (CRS) often results in ongoing symptoms, recurrence of polypoid mucosa, infective exacerbations, and further systemic medication despite surgical intervention. Debate exists as to the most effective topical therapy in CRS.MethodsThe objective was to determine if corticosteroid delivered via a nasal irrigation or via a simple nasal spray would be more effective in controlling the symptoms and signs of CRS. A double‐blind placebo‐controlled randomized trial over 12 months was performed between 3 tertiary rhinologic clinics. After sinus surgery, all patients performed a nasal irrigation followed by a nasal spray once a day for 12 months. Groups were defined by corticosteroid (2 mg mometasone) delivered by either spray or irrigation. The primary outcomes were patient‐reported symptoms: visual analogue score (VAS) and 22‐item Sino‐Nasal Outcome Test (SNOT‐22), a global rating of sinonasal function. Secondary outcomes were also recorded from radiology (Lund‐Mackay score [LMS]) and endoscopic (Modified Lund‐Kennedy score [mLKS]) assessments.ResultsA total of 44 patients were randomized (age 50.3 ± 13.0 years; 40.9% female). Overall, patients improved significantly from either intervention. However, the corticosteroid nasal irrigation group had greater improvement in nasal blockage (−69.91 ± 29.37 vs −36.12 ± 42.94; p = 0.029), a greater improvement on LMS (−12.07 ± 4.43 vs −7.39 ± 6.94; p = 0.031) and less inflammation on mLKS at 12 months (7.33 ± 11.55 vs 21.78 ± 23.37; p = 0.018). One‐year posttreatment blockage, drainage, fever, and total VAS scores were all lower in the corticosteroid irrigation group.ConclusionIn the setting of diffuse or patchy CRS disease, the use of corticosteroid delivered by nasal irrigation is superior to simple nasal spray in postsurgical patients.
A One‐Step Route to CO2‐Based Block Copolymers by Simultaneous ROCOP of CO2/Epoxides and RAFT Polymerization of Vinyl Monomers
Authors: Wang Yong , Zhao Yajun , Ye Yunsheng , Peng Haiyan , Zhou Xingping , Xie Xiaolin , Wang Xianhong , Wang Fosong 
Published: February 2018

AbstractThe one‐step synthesis of well‐defined CO2‐based diblock copolymers was achieved by simultaneous ring‐opening copolymerization (ROCOP) of CO2/epoxides and RAFT polymerization of vinyl monomers using a trithiocarbonate compound bearing a carboxylic group (TTC‐COOH) as the bifunctional chain transfer agent (CTA). The double chain‐transfer effect allows for independent and precise control over the molecular weight of the two blocks and ensures narrow polydispersities of the resultant block copolymers (1.09–1.14). Notably, an unusual axial group exchange reaction between the aluminum porphyrin catalyst and TTC‐COOH impedes the formation of homopolycarbonates. By taking advantage of the RAFT technique, it is able to meet the stringent demand for functionality control to well expand the application scopes of CO2‐based polycarbonates.
A Carbon Electrode Functionalized by a Tricopper Cluster Complex: Overcoming Overpotential and Production of Hydrogen Peroxide in the Oxygen Reduction Reaction
Authors: Thiyagarajan Natarajan , Janmanchi Damodar , Tsai Yi‐Fang , Wanna Wondemagegn Hailemichael , Ramu Ravirala , Chan Sunney I. , Zen Jyh‐Myng , Yu Steve S.‐F. 
Published: February 2018

AbstractA study of the oxygen reduction reaction (ORR) on a screen printed carbon electrode surface mediated by the tricopper cluster complex Cu3(7‐N‐Etppz(CH2OH)) dispersed on electrochemically reduced carbon black, where 7‐N‐Etppz(CH2OH) is the ligand 3,3′‐(6‐(hydroxymethyl)‐1,4‐diazepane‐1,4‐diyl)bis(1‐(4‐ethyl piperazin‐1‐yl)propan‐2‐ol), is described. Onset oxygen reduction potentials of about 0.92 V and about 0.77 V are observed at pH 13 and pH 7 vs. the reversible hydrogen electrode, which are comparable to the best values reported for any synthetic copper complex. Based on half‐wave potentials (E1/2), the corresponding overpotentials are about 0.42 V and about 0.68 V, respectively. Kinetic studies indicate that the trinuclear copper catalyst can accomplish the 4 e− reduction of O2 efficiently and the ORR is accompanied by the production of only small amounts of H2O2. The involvement of the copper triad in the O2 activation process is also verified.
Imaging of Colorectal Cancers Using Activatable Nanoprobes with Second Near‐Infrared Window Emission
Authors: Xu Ge , Yan Qinglong , Lv Xiaoguang , Zhu Ying , Xin Kai , Shi Ben , Wang Rongchen , Chen Jian , Gao Wei , Shi Ping , Fan Chunhai , Zhao Chunchang , Tian He 
Published: February 2018

AbstractFluorescent probes in the second near‐infrared window (NIR‐II) allow high‐resolution bioimaging with deep‐tissue penetration. However, existing NIR‐II materials often have poor signal‐to‐background ratios because of the lack of target specificity. Herein, an activatable NIR‐II nanoprobe for visualizing colorectal cancers was devised. This designed probe displays H2S‐activated ratiometric fluorescence and light‐up NIR‐II emission at 900–1300 nm. By using this activatable and target specific probe for deep‐tissue imaging of H2S‐rich colon cancer cells, accurate identification of colorectal tumors in animal models were performed. It is anticipated that the development of activatable NIR‐II probes will find widespread applications in biological and clinical systems.
Potassium‐Zincate‐Catalyzed Benzylic C−H Bond Addition of Diarylmethanes to Styrenes
Authors: Liu Yu‐Feng , Zhai Dan‐Dan , Zhang Xiang‐Yu , Guan Bing‐Tao 
Published: February 2018

AbstractDirect functionalization of the benzylic C−H bond of diarylmethanes is an important strategy for the synthesis of diarylmethine‐containing compounds. However, the methods developed to date for this purpose require a stoichiometric amount (usually more) of either a strong base or an oxidant. Reported here is the first catalytic benzylic C−H bond addition of diarylmethanes to styrenes and conjugated dienes. A potassium zincate complex, generated from potassium benzyl and zinc amide, acts as a catalyst and displays good activity and chemoselectivity. Considering the atom economy of the reaction and the ready availability of the catalyst, this reaction constitutes a practical, efficient method for diarylalkane synthesis.