bluuebunny/crossref_metadata_2025_split huggingface dataset:
MESAS: Measuring the Emission of Stellar Atmospheres at Submillimeter/millimeter Wavelengths
Authors: White Jacob Aaron , Aufdenberg Jason , Boley A. C. , Hauschildt Peter , Hughes Meredith , Matthews Brenda , Wilner David 
Published: May 2018

Abstract
In the early stages of planet formation, small dust grains grow to become millimeter-sized particles in debris disks around stars. These disks can in principle be characterized by their emission at submillimeter and millimeter wavelengths. Determining both the occurrence and abundance of debris in unresolved circumstellar disks of A-type main-sequence stars requires that the stellar photospheric emission be accurately modeled. To better constrain the photospheric emission for such systems, we present observations of Sirius A, an A-type star with no known debris, from the James Clerk Maxwell Telescope, Submillimeter Array, and Jansky Very Large Array at 0.45, 0.85, 0.88, 1.3, 6.7, and 9.0 mm. We use these observations to inform a PHOENIX model of Sirius A’s atmosphere. We find the model provides a good match to these data and can be used as a template for the submillimeter/millimeter emission of other early A-type stars where unresolved debris may be present. The observations are part of an ongoing observational campaign entitled Measuring the Emission of Stellar Atmospheres at Submillimeter/millimeter wavelengths.
Recurrent Outbursts Revealed in 3XMM J031820.8-663034
Authors: Zhao Hai-Hui , Weng Shan-Shan , Wang Jun-Xian 
Published: May 2018

Abstract
3XMM J031820.8-663034, first detected by ROSAT in NGC 1313, is one of a few known transient ultraluminous X-ray sources (ULXs). In this paper, we present decades of X-ray data of this source from ROSAT, XMM-Newton, Chandra, and the Neil Gehrels Swift Observatory. We find that its X-ray emission experienced four outbursts since 1992, with a typical recurrent time ∼1800 days, an outburst duration ∼240–300 days, and a nearly constant peak X-ray luminosity ∼1.5 × 1039 erg s−1. The upper limit of X-ray luminosity at the quiescent state is ∼5.6 × 1036 erg s−1, and the total energy radiated during one outburst is ∼1046 erg. The spectra at the high luminosity states can be described with an absorbed disk blackbody, and the disk temperature increases with the X-ray luminosity. We compare its outburst properties with other known transient ULXs including ESO 243-49 HLX-1. As its peak luminosity only marginally puts it in the category of ULXs, we also compare it with normal transient black hole binaries. Our results suggest that the source is powered by an accreting massive stellar-mass black hole, and the outbursts are triggered by the thermal-viscous instability.
Abundances and Depletions of Neutron-capture Elements in the Interstellar Medium
Authors: Ritchey A. M. , Federman S. R. , Lambert D. L. 
Published: May 2018

Abstract
We present an extensive analysis of the gas-phase abundances and depletion behaviors of neutron-capture elements in the interstellar medium (ISM). Column densities (or upper limits to the column densities) of Ga ii, Ge ii, As ii, Kr i, Cd ii, Sn ii, and Pb ii are determined for a sample of 69 sight lines with high- and/or medium-resolution archival spectra obtained with the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope. An additional 59 sight lines with column density measurements reported in the literature are included in our analysis. Parameters that characterize the depletion trends of the elements are derived according to the methodology developed by Jenkins. (In an appendix, we present similar depletion results for the light element B.) The depletion patterns exhibited by Ga and Ge comport with expectations based on the depletion results obtained for many other elements. Arsenic exhibits much less depletion than expected, and its abundance in low-depletion sight lines may even be supersolar. We confirm a previous finding by Jenkins that the depletion of Kr increases as the overall depletion level increases from one sight line to another. Cadmium shows no such evidence of increasing depletion. We find a significant amount of scatter in the gas-phase abundances of Sn and Pb. For Sn, at least, the scatter may be evidence of real intrinsic abundance variations due to s-process enrichment combined with inefficient mixing in the ISM.
Transition Probabilities of Emissions and Rotationless Radiative Lifetimes of Vibrational Levels for the PO Radical
Authors: Yin Yuan , Shi Deheng , Sun Jinfeng , Zhu Zunlue 
Published: May 2018

Abstract
This work investigates the transition dipole moments (TDMs) and transition probabilities of electric dipole emissions between the X2Π, B2Σ+, B′2Π, D′2Π, C2Σ−, C′2Δ, F2Σ+, and P2Π states of the PO radical. The TDMs of 23 pairs of states are calculated by the internally contracted multireference configuration method with the aug-cc-pV6Z basis set. The vibrational band origins, Franck–Condon factors, and Einstein coefficients of all the spontaneous emissions are evaluated. The rotationless radiative lifetimes of the vibrational levels are approximately 10−7–10−8 s for the B2Σ+, C2Σ−, C′2Δ, P2Π, and F2Σ+ states; 10−4–10−5 s for the B′2Π state; and 10−1–10−2 s for the D′2Π state. The Einstein coefficients of many emissions are large for the B2Σ+–X2Π, B′2Π–X2Π, C′2Δ–X2Π, C2Σ−–X2Π, F2Σ+–X2Π, P2Π–X2Π, P2Π–B′2Π, and P2Π–D′2Π systems. Almost all the spontaneous emissions arising from the D′2Π state are very weak. The vibrational band origins of these emissions extend from the UV into the far-infrared spectra. The radiative lifetimes and vibrational band origins are compared with available experimental and theoretical values. According to the radiative lifetimes and transition probabilities obtained in this paper, some guidelines for detecting these states spectroscopically are proposed. The TDMs and transition probabilities reported here are considered to be reliable and can be used as guidelines for detecting similar transitions, especially those in interstellar space.
Written Versus Simulation-Based Evaluation Methods to Assess Competency and Confidence in the Use of Electronic Medical Records
Authors: Steward D. Jill , Mullinix Connie , Wu Qiang 
Published: May 2018

Background:
This study compares data on the use of written versus patient simulator methods to evaluate the competence and confidence of RNs after electronic medical record training.

Method:
A randomized controlled trial compared evaluations of the competence and confidence of newly hired nurses using a written patient admission and discharge versus a high-fidelity simulation manikin. Trained observers evaluated nurses' competence, and the nurses rated their own levels of confidence in their performance.

Results:
No differences were found in confidence or competence.

Conclusion:
Evaluating nurse training on electronic medical records via simulation is as good as evaluating them using the traditional written method.

J Contin Educ Nurs.
2018;49(6):262–268.
Infragluteal fasciocutaneous flap for management of recurrent ischial pressure sore
Authors: Kumar Umesh , Jain Pradeep 
Published: May 2018

ABSTRACT
Objective: The objective of the study was to determine the feasibility of infragluteal fasciocutaneous flap in recurrent ischial pressure sore. Materials and Methods: In our study, from 2015 to 2017, nine patients suffering from recurrent ischial sore with scars of previous surgery were managed with infragluteal fasciocutaneous flap. Wound bed was prepared by surgical debridement and negative pressure wound therapy in each case. In two cases, gracilis muscle flap was used as adjuvant to fill up the residual cavity. Donor area of flap was primarily closed. Results: Infragluteal fasciocutaneous flap was used in all nine cases. Superficial distal congestion was present in two cases. Haematoma (1) and infection (1) at flap donor site occurred. Recurrence of ulcer was observed in two cases which were managed by bursectomy and advancement of the bridge segment of the original infragluteal fasciocutaneous flap. All flaps survived without any major complication. Discussion: Ischial pressure sores have a tendency of recurrence after conservative or flap surgery. Scars due to previous surgeries adjacent to the pressure sore preclude the use of local skin or muscle flap. Infragluteal fasciocutaneous flap is a thick reliable fasciocutaneous flap that can be used for resurfacing recurrent ischial pressure sore. This flap has an axial pattern blood supply along with rich subfascial and fascial plexus supplied by various perforators. Conclusion: Infragluteal fasciocutaneous flap is reliable option for managing recurrent ischial sore as it transposes well-vascularised thick fasciocutaneous flap from adjacent posterior thigh and its bridge segment can be further used in case of recurrence.
Immediate breast reconstruction with a ‘modified fleur-de-lis’ abdominal-free flap in a patient with previous abdominal surgery
Authors: Robustillo Manuel , Pont Luis Parra , Pafitanis Georgios , Ciudad Pedro , Grandes Daniel , Iglesias Israel 
Published: May 2018

ABSTRACTDIEP flap has become the gold standard method for patients undergoing autologous breast reconstruction; however, previous surgery or scars in the abdominal area have been considered a relative contraindication for the use of abdominal tissue. Longitudinal midline abdominal scars may be specially problematic because of the poor midline crossover of blood and the high risk of necrosis of the distal flap. Patients with small breast may be easily reconstructed with hemi-DIEP flap; however, patients with large breast need more tissue available. Our aim is to report a modification of a ‘fleur-de-lis pattern’ for a breast reconstruction in a patient with previous abdominal surgery and large breast. The post-operative course was uneventful, flap did not show blood supply compromise, volume and symmetry are preserved after 6 months post-operative and donor site morbidity has not been observed. This modification may be very useful to avoid complications related to poor blood supply associated with scar tissues. Careful pre-operative planning and the transfer of only well-vascularised tissue are essential for a successful reconstruction.
Warm winter, thin ice?
Authors: Stroeve Julienne C. , Schroder David , Tsamados Michel , Feltham Daniel 
Published: May 2018

Abstract. Winter 2016/2017 saw record warmth over the Arctic Ocean, leading to the least amount of freezing degree days north of 70° N since at least 1979. The impact of this warmth was evaluated using model simulations from the Los Alamos sea ice model (CICE) and CryoSat-2 thickness estimates from three different data providers. While CICE simulations show a broad region of anomalously thin ice in April 2017 relative to the 2011–2017 mean, analysis of three CryoSat-2 products show more limited regions with thin ice and do not always agree with each other, both in magnitude and direction of thickness anomalies. CICE is further used to diagnose feedback processes driving the observed anomalies, showing 11–13 cm reduced thermodynamic ice growth over the Arctic domain used in this study compared to the 2011–2017 mean, and dynamical contributions of +1 to +4 cm. Finally, CICE model simulations from 1985 to 2017 indicate the negative feedback relationship between ice growth and winter air temperatures may be starting to weaken, showing decreased winter ice growth since 2012, as winter air temperatures have increased and the freeze-up has been further delayed.
INTERPRETATION OF THE TANδ PEAK HEIGHT FOR PARTICLE-FILLED RUBBER AND POLYMER NANOCOMPOSITES WITH RELEVANCE TO TIRE TREAD PERFORMANCE BALANCE
Authors: Warasitthinon Nuthathai , Robertson Christopher G. 
Published: May 2018

ABSTRACT
The aim of this research is to clarify the meaning of the peak height for the viscoelastic loss tangent (tanδ) in the glass transition region of particle-filled rubber, polymer nanocomposites, and polymer systems in general. Filler, oil, and curative loadings were systematically varied in a model styrene-butadiene rubber formulation with carbon black as the reinforcing filler. The dynamic mechanical responses of these compounds enabled a detailed study of the glass-to-rubber softening transition, which is known to play an important role with respect to the balance of traction, handling, and rolling resistance characteristics of tire treads. From the temperature-dependent viscoelastic results that were acquired at fixed frequency and small dynamic strain, it was demonstrated that a higher peak value for tanδ was correlated with a lower dynamic modulus in the rubbery state. Adjusting filler volume fraction was found to be an effective way of changing the rubbery modulus and hence the tanδ peak height. It was furthermore verified that such a correlation is a universal material-independent viscoelastic effect by mathematically producing a similar trend by varying the rubbery modulus parameter in the Havriliak–Negami viscoelastic model. This investigation also showed why glass transition temperature should be determined from the position of the loss modulus peak and not the tanδ peak. Cure behavior, tensile stress–strain properties, and extent of filler networking (Payne effect) for these rubber compounds will additionally be discussed.
Visible Light Communication Kits for Education
Authors: Fuada Syifaul , Adiono Trio 
Published: May 2018

The development of educational kit must be compiled on how to prepare undergraduate students in the engineering field in following the new trends globally and becoming an alternative to the technical education system based on practical approach. The primary motivation for this research is to design and implement the visible light communications (VLC) educational toolkit, especially in the analog front-end part. It consisted of six kits (transimpedance amplifier, pre-amplifier, DC-offset remover, analog filter, and AGC) in which each kit has one practicum task. There are six tasks and one task for the project by integrating these kits. The undergraduate students can use this educational kit to investigate the physical layer in a VLC system. It provides a low-complexity educational kit, so this is becoming an alternative as supplement course offered in this field. Then, it has a simple design and user-friendly. The development of educational kit must be compiled on how to prepare undergraduate students in the engineering field in following the new trends globally and becoming an alternative to the technical education system based on practical approach. The primary motivation for this research is to design and implement the visible light communications (VLC) educational toolkit, especially in the analog front-end part. It consisted of six kits (transimpedance amplifier, pre-amplifier, DC-offset remover, analog filter, and AGC) in which each kit has one practicum task. There are six tasks and one task for the project by integrating these kits. The undergraduate students can use this educational kit to investigate the physical layer in a VLC system. It provides a low-complexity educational kit, so this is becoming an alternative as supplement course offered in this field. Then, it has a simple design and user-friendly.
Welke factoren bevorderen of belemmeren het gebruik van beleidsevaluaties?
Authors: Bouterse Marjolein , Pattyn Valérie 
Published: May 2018

Welke factoren bevorderen of belemmeren het gebruik van beleidsevaluaties?
Alhoewel het gebruik van beleidsevaluaties (of het gebrek eraan) een van de meest besproken thema’s is in de evaluatieliteratuur, berust veel onderzoek over het thema enkel op anekdotisch bewijs, en zijn er nauwelijks studies beschikbaar die aandacht hebben voor de samenhang tussen verschillende factoren die impact kunnen hebben op het gebruik. In voorliggend artikel presenteren we de resultaten van een studie waarin we hebben getracht om op een systematische wijze inzicht te bieden in de combinaties van factoren die instrumenteel gebruik van beleidsevaluaties bevorderen of verhinderen. We onderzochten in dit verband alle evaluaties die in de periode 2013-2016 werden uitgevoerd bij de Inspectie Ontwikkelingssamenwerking en Beleidsevaluatie. Via Qualitative Comparative Analysis (QCA) bekeken we welke combinaties van de volgende factoren als noodzakelijk en/of voldoende bleken voor evaluatiegebruik: (1) politiek gehalte van het onderwerp, (2) interesse van de beleidsmakers, (3) aanwezigheid van nieuwe kennis in de evaluatie, en (4) de timing van de evaluatie.Voor de praktijk van beleidsmakers en evaluatoren benadrukken we het belang van tijdigheid en interesse voor een evaluatie. Onze analyse laat zien dat professionals die op deze factoren inzetten, een gunstig klimaat creëren voor het gebruik van evaluaties. Wat betreft tijdigheid lijkt het van belang de evaluatie te laten sporen met het schrijfwerk van een beleidsafdeling aan nieuw beleid of grote beleidsveranderingen. Goede anticipatie en een sterke institutionalisering van het evaluatieproces zijn hiertoe cruciaal. Of het thema van de evaluatie een sterke politieke gevoeligheid kent, is minder belangrijk. Mits sprake is van de juiste omgevingscondities, kunnen ook dergelijke evaluaties sterk instrumenteel worden benut.
Determination of Eight Sulfonylurea Herbicide Residues by LC/MS/MS Using a Sample Separation Technique with Ethyl Acetate
Authors: Bempelou Eleftheria , Kappatos Petros , Liapis Konstantinos 
Published: May 2018

Abstract
Background: Sulfonylureas are an important group of systemic herbicides mainly used for the control of weeds in cereals and other crops in early growth stages of their cultivations. Sulfonylureas are characterized by their broad spectrum weed control and their good crop selectivity. Objective: In the present study, the determination of eight sulfonylureas has been tested in wheat flour by applying the SweEt multiresidue method modified for dry products. Method: The method involves sample preparation with extraction with ethyl acetate (EEA) and determination of the analytes with LC/MS/MS-electrospray ionization. Its performance was compared with the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method. Both methods were validated in three fortification levels according to European Union requirements. Results: The proposed method gave acceptable results as far as validation criteria are concerned, while QuEChERS did not result in successful recoveries in the lowest validation level, which is equal to the respective maximum residue limits (MRLs). Conclusions: The obtained results showed that the tested method showed good separation, sensitivity, linearity, precision, and accuracy for quantitative and qualitative analysis of sulfonylurea herbicides in cereals at low levels, as required by legislation. The analytical techniques were successfully applied to different samples of cereals, and no residues were determined above the reporting limit, as established at the lowest concentration level of each analyte being validated with acceptable accuracy. Highlights: Low recoveries for QuEChERS in the concentrations equal to the MRL. Acceptable recoveries for the EEA method in all fortification levels. Correlation coefficients above 0.99. Positive findings only with EEA in real samples.
“Ask The Pathologist”: An Internet Forum Facilitating Communication Between Cancer Registrars and Pathologists
Authors: Strickland-Marmol Leah B. , Muro-Cacho Carlos A. , Washington Kay , Foulis Philip R. 
Published: May 2018

Context.—
Cancer registrars should work closely with pathologists to ensure compliance with reporting standards. Many registrars, however, have little contact with pathologists, resulting in a lack of “real-time” interaction that is essential for their professional activities and development.

Objective.—
To facilitate registrars' case management, as cancer biology becomes more complex, we developed the ATP (Ask the Pathologist) forum as a place to ask pathology-related questions about neoplasms, such as terminology, biology, histologic classification, extent of disease, molecular markers, and prognostic factors.

Design.—
Questions posted are reviewed by the ATP multidisciplinary oversight committee, which consists of 3 pathologists, 4 cancer registrars, 1 internal medicine physician, the pathology resident member of the College of American Pathologists Cancer Committee, and 2 medical technologists. The oversight committee may answer the question. Alternatively, the committee may forward the question to a content expert pathologist, determine that the question is better suited for another reference Web site, or both.

Results.—
Since September 2013, when the ATP forum became available, users have posted 284 questions, of which 48 (17%) related to gastrointestinal tumors, 43 (15%) to breast tumors, and 37 (13%) to general pathology. The average turnaround time, from question posted to response, is 11.1 days.

Conclusions.—
The ATP forum has had a positive impact in the daily activities of cancer registrars. Of 440 registrars surveyed, more than 90% considered that questions were answered satisfactorily, and one-third reported that ATP answers affected how they managed a given case.
Acute Superior Mesenteric Arterial Occlusion Caused by a Thoracic Aortic Mural Thrombus in a Patient Without Coagulation Disorder or Aortic Disease: A Case Report
Authors: Yoshiya Shohei , Sakano Takahiro , Inokuchi Shoichi , Hirayama Yoshie , Tsuda Yasuo , Taketani Kenji , Kimura Yasue , Minagawa Ryosuke , Koga Tadashi , Kai Masanori , Kajiyama Kiyoshi 
Published: May 2018

Introduction
Aortic mural thrombus (AMT) formation in a patient without hypercoagulability and preexisting aortic disease is very rare, and acute superior mesenteric artery (SMA) occlusion resulting from AMT is clinically infrequent.

Case presentation
A 70-year-old woman was transferred to our institute with a diagnosis of acute SMA occlusion. Contrast-enhanced computed tomography (CECT) revealed thromboemboli in the SMA and a thoracic AMT. She immediately underwent angiography and subsequent endovascular aspiration and transcatheter infusion, which recanalized the SMA. However, CECT suggested intestinal ischemia; therefore, she underwent intestinal resection, and we administered anticoagulant therapy with heparin and warfarin postoperatively for the thoracic AMT. Although repeat thrombus formation developed in an ileal branch despite anticoagulant therapy, she had no abdominal symptoms; therefore, we continued the anticoagulant therapy. CECT 3 months later confirmed the absence of thoracic AMT and normal ileal findings.

Conclusion
We report a case of acute SMA occlusion and preceding splenic infarction that resulted from thoracic AMT in a patient without hypercoagulability and preexisting aortic disease. AMT should always be considered as a cause of acute SMA occlusion in patients without heart disease, including atrial fibrillation or severe arteriosclerosis.