bluuebunny/crossref_metadata_2025_split huggingface dataset:
Self‐monitoring personality trait at work: An integrative narrative review and future research directions
Authors: Kudret Selin , Erdogan Berrin , Bauer Talya N. 
Published: December 2018

SummaryIn this narrative review, we provide an overview of the self‐monitoring literature as it applies to the workplace context. Our starting point to the review is a meta‐analysis of self‐monitoring literature published inby Day, Schleicher, Unckless, and Hiller. After providing an overview of the theoretical basis of self‐monitoring and its measurement, we present a summary of the broad literature on self‐monitoring to examine the implications of self‐monitoring for employees and organizations. Based on our review, we identify the main outcomes of self‐monitoring as well as findings of the literature treating self‐monitoring as a moderator. We provide evidence that self‐monitoring has potential downsides, which would benefit from further investigation. We conclude our review by identifying important potential future research directions.
ZO phonon of a buffer layer and Raman mapping of hydrogenated buffer on SiC(0001)
Authors: Rejhon Martin , Kunc Jan 
Published: December 2018

AbstractWe have measured spatial Raman maps of hydrogen intercalated quasi‐free standing monolayer graphene (QFSMLG) on SiC(0001). We compare Raman spectra of QFSMLG with spectra of bare buffer layer, single‐layer graphene, and bare SiC substrate. We also present the evolution of QFSMLG Raman spectra with the temperature and duration of hydrogen intercalation. We present new Raman modes, and, on the basis of polarization resolved measurements, we attribute them to the totally symmetric out‐of‐plane optical phonon (ZO) modes of the buffer layer at the Γ and M points. We show that these modes are eliminated by hydrogen intercalation; thus, they indicate onset of buffer layer decoupling from the SiC substrate. The spatial mapping of Raman scattering reveals details of the optimal hydrogen intercalation at elevated temperatures. Further increase of the intercalation temperature leads to etching of the buffer layer and underlying SiC substrate. Therefore, we show that interplay between temperature and intercalation time is a promising route towards increased graphene grain size with reduced lattice strain.
Application of Polyethylene/Polypropylene Glycol Ethers of Fatty Alcohols for Micelle‐Mediated Extraction of Calendula anthodium
Authors: Śliwa Karolina , Śliwa Paweł , Sikora Elżbieta , Ogonowski Jan , Oszmiański Jan , Nowicka Paulina 
Published: December 2018

AbstractClassical extraction methods used for the isolation of active substances from the plant materials are expensive, complicated, and often environmentally unfriendly. The ultrasonic assisted micelle‐mediated extraction (UAMME) method seems to be an interesting alternative. In this study, Calendula anthodium UAMME extract composition and antioxidant properties were examined. Several nonionic surfactants, from the group of ethoxy/propoxylated fatty alcohols, were applied in the extraction process. The results were compared with water and water‐ethanoic extracts of marigold flowers. Bioflavonoid compositions of the extracts were determined using ultra‐performance liquid chromatography–diode‐array detector–mass spectrometry (UPLC‐DAD‐MS). Their antioxidant properties were evaluated using free radical‐scavenging activity (2,2‐Diphenyl‐1‐picrylhydrazyl, DPPH) measurement and Follin's method. Additionally, the structure of the selected flavonoids solubilized in the micelle solution was theoretically simulated using molecular dynamics (MD). The results confirmed that the UAMME method might be an alternative method for the sourcing of the plant extracts rich in natural antioxidants. The results indicated that UAMME extracts showed 19–37% higher DPPH radical inhibition than aqueous extracts. Furthermore, the selection of a suitable surfactant may thus provide the expected composition of the extract. Due to the use as eluents in UAMME, safe raw materials, the obtained marigold flower extracts can be applied as components in the cosmetic and pharmaceutical products.
Staging laparoscopy among three subtypes of extra‐hepatic biliary malignancy: a 15‐year experience from 10 institutions
Authors: Davidson Jesse T. , Jin Linda X. , Krasnick Bradley , Ethun Cecilia G. , Pawlik Timothy M. , Poultsides George A. , Idrees Kamran , Weber Sharon M. , Martin Robert C. G. , Shen Perry , Hatzaras Ioannis , Maithel Shishir K. , Fields Ryan C. ,   and the U.S. Extrahepatic Biliary Malignancy Consortium
Published: December 2018

BackgroundStaging laparoscopy (SL) is used to avoid resection failure and thus increase the curative resection rate. SL utilization in extra‐hepatic biliary tumors (EHBT) is variable.MethodsData from 1090 patients with potentially resectable EHBT including gallbladder (GBC), distal (DC), and hilar (HC) subtypes were retrospectively collected from 10 academic centers (2000‐2015).ResultsThe SL utilization rate increased over time and was significantly higher in GBC than DC and HC. SL yield was 16.8% and did not differ between groups or over time. In patients undergoing attempted resection with prior SL, the curative resection rate did not differ between subtypes. In patients undergoing attempted resection without prior SL, the curative resection rate was less in GBC compared with DC or HC. After matching cohorts by inverse probability weighting, prior SL was associated with curative resection in GBC only (odds ratio [OR], 2.41, 95% CI, 1.36‐4.27). On multivariable regression analysis, elevated carbohydrate antigen 19‐9 (CA 19‐9), low serum albumin, and GBC were strong predictors of distant disease on SL. After categorizing patients undergoing SL into low, intermediate, and high‐risk groups based on these parameters, SL yield improved progressively from 10.0% to 19.6% to 52.6%.ConclusionsWe recommend routine SL for patients with GBC, particularly with elevated CA19‐9 level and/or decreased serum albumin.
Fluctuating mast production does not drive Scandinavian brown bear behavior
Authors: Hertel Anne G. , Zedrosser Andreas , Kindberg Jonas , Langvall Ola , Swenson Jon E. 
Published: December 2018

ABSTRACTBears often rely on soft or hard mast during fall hyperphagia when they increase body mass in preparation for winter hibernation. Studies of North American and Japanese bear populations suggest they respond to years of mast crop failure by increasing movement rates and roaming farther, with an increase in human–wildlife conflicts. In southcentral Sweden, brown bears (Ursus arctos) primarily feed on bilberry (Vaccinium myrtillus) and lingonberry (V. vitis‐idaea) during hyperphagia. We hypothesized that berry production affects movement, activity, and space use behaviors of bears in Sweden, which have the potential to increase human–bear encounters. We tested whether seasonal activity patterns, human settlement visits, and clearcut selection ratios were affected by bilberry and lingonberry productivity between 2007 and 2017 with linear and generalized linear mixed effect models. Contrary to our expectations, we did not find that bears moved more or maintained larger home ranges in years of low berry production. Bears were slightly more active in years of higher bilberry production, but variation in behavior was primarily explained by demographic group and individual differences. Bears rarely visited human settlements and the number of visits did not increase in relation to shortage of natural foods. Likewise, population‐level selection for clearcuts was unrelated to berry production but reflected a differential food search behavior in the 2 peak berry seasons, with higher clearcut selection ratios during the lingonberry season. Only 12 bears regularly used agricultural fields, which were too few to relate field visits to berry production, but all bears visited fields more often during the later lingonberry season. We suggest that weaker fluctuations in berry production, a continuous spatial distribution of berries, and an apparent absence of forage‐limiting exploitative intra‐ or interspecific competition contribute to brown bears in Scandinavia being less food limited than bears in North America or Japan, which might help to explain the low number of human–bear conflicts in Sweden. Factors potentially influencing encounters and actual or perceived conflict between bears and humans differ among populations because of a different distribution of natural and non‐natural food resources or differences in the magnitude of variation in food abundance among years. These data are important to consider when communicating causes of human‐wildlife conflicts to the public. © 2018 The Wildlife Society.
Direct measurements of C3F7I dissociation rate constants using a shock tube ARAS technique
Authors: Bystrov Nikita , Emelianov Alexander , Eremin Alexander , Loukhovitski Boris , Sharipov Alexander , Yatsenko Pavel 
Published: December 2018

AbstractThis work presents the first direct experimental study on the thermal unimolecular decomposition of n‐C3F7I. Experiments were performed behind incident and reflected shock waves using the atomic resonance absorption spectroscopy (ARAS) technique on a resonant line of atomic iodine at 183.04 nm. The reaction C3F7I + Ar → C3F7 + I + Ar (1) was studied at specific temperature (800–1200 K) and pressure (0.6–8.3 bar) ranges. Under experimental conditions, the obtained values of the rate constant at temperatures below 950 K are close to the high‐pressure limit; however, considering theoretical calculations, the influence of pressure on the rate constant at elevated temperatures remains noticeable. The resulting value of the experimental rate constant of reaction 1 is presented in the following Arrhenius form:
urn:x-wiley:05388066:media:kin21244:kin21244-math-0001Experimental data were found to correlate with the results of the Rice–Ramsperger–Kassel–Marcus –master equation analysis based on quantum‐chemical calculations. The following low‐ and high‐pressure limiting rate coefficients were obtained over the temperature range T = 300–3000 K:
urn:x-wiley:05388066:media:kin21244:kin21244-math-0002with the center broadening factor Fc = 0.119.
Surgical treatment of glottic web using butterfly mucosal flap technique: Experience on 12 patients
Authors: Yılmaz Taner 
Published: December 2018

ObjectivesMany surgical methods have been described for the treatment of glottic web, with very little experience of each. Butterfly mucosal flap technique utilizes superior and inferior mucosal flaps on corresponding surfaces of the web; superior flap is elevated with its base on one vocal fold; and inferior flap is elevated with its base on the other vocal fold. These flaps are sutured to the vocal fold where flap's base is located. This requires four to six microsutures. The disadvantage of this technique is its difficulty. The advantages are single‐stage endoscopic outpatient surgery and high success rate.MethodsThis is an individual prospective cohort study. All consecutive 12 cases of glottic web were treated with butterfly mucosal flap technique and followed for at least 1 year postoperatively. Voice Handicap Index (VHI)‐30 including physical, functional, emotional, and total scores; acoustic analysis with /a/; aerodynamic measures; and respiratory function tests with a spirometer were determined pre‐ and postoperatively.ResultsSix patients were male; five were female; and one was male‐to‐female transsexual. Their ages ranged between 9 and 60 years with a mean of 36. All webs were caused by surgical trauma. All webs were cured with one surgery. The postoperative VHI scores, acoustic analysis results, aerodynamic measures, and respiratory function test results of patients improved significantly postoperatively (P < 0.05).ConclusionAlthough technically difficult, butterfly mucosal flap technique is a very successful single‐stage endoscopic surgical option for the treatment of glottic webs.Level of Evidence2Laryngoscope, 129:1423–1427, 2019
Over‐the‐Counter Tinnitus “Cures”: Marketers’ Promises Do Not Ring True
Authors: Vendra Varun , Vaisbuch Yona , Mudry Albert C. , Jackler Robert K. 
Published: December 2018

ObjectivesThe Clinical Practice Guideline of the American Academy of Otolaryngology–Head & Neck Surgery (2014) stated that clinicians should not recommend dietary supplements for the treatment of tinnitus. The aim of this study is to characterize over‐the‐counter tinnitus remedies (OTCTR) on the U.S. market, describe the ingredients and prices, and characterize the methods of promoting these products.MethodsOTCTR were identified via Web search and visits to retail establishments. Information was collected regarding OTCTR chemical composition, product labeling, advertisements and marketing, price, and customers reviews.ResultsA wide array of unproven OTCTR exist on today's market. All make unfounded claims of relief from ear ringing. Most of the products considered in this study consist of mixtures of inexpensive and common vitamins, minerals, and/or herbs sold at a premium compared to similar preparations not expressly advertised for tinnitus. Certain brands, most notably Arches Tinnitus Formula (Arches Natural Products Inc., Salt Lake City, UT) and Lipo‐Flavonoid (Clarion Brands Inc., Solon, OH), target otolaryngologists by advertising in specialty journals and prominently featuring supposed endorsement by “Ear‐Nose‐and‐Throat Doctors” in their marketing.ConclusionIt is important for otolaryngologists who are caring for tinnitus sufferers to be aware that a robust and diverse market exists for unproven OTC tinnitus remedies. It is troubling that heavily advertised brands profess support by otolaryngologists. Responsible specialty organizations in the field should consider opposing such commercially motivated representations. Otolaryngology journals may wish to adopt a policy along the lines of The Journal of the American Medical Association publications to decline advertisements of dietary supplements that make unproven therapeutic claims.Level of Evidence5Laryngoscope, 129:1898–1906, 2019
Factors associated with epiglottic petiole prolapse repositioning success
Authors: Bergeron Mathieu , de Alarcon Alessandro , Hart Catherine K , Rutter Michael J. 
Published: December 2018

ObjectiveEpiglottic petiole prolapse is an overlooked entity that could lead to supraglottic airway obstruction for patients with complex airway history. Classical symptoms include exercise intolerance, obstructive sleep apnea, and difficulty with decannulation. The goal of this project was to evaluate the factors associated with epiglottic petiole repositioning success.MethodsRetrospective case series of patients with a complex history of airway reconstruction evaluated by the aerodigestive team at a tertiary pediatric hospital from May 2003 to August 2017. All patients underwent repositioning for petiole prolapse.ResultsWe had a total of 59 patients (14 females, 23.7%) with complex airway anomalies with petiole prolapse noted during a microlaryngoscopy and bronchoscopy. Mean age was 12.9 ± 6.1 year old (range 1.3–35.9). Patients had a history of 2.2 (1–5) open airway surgeries, and 51 of 58 (87.9%) of them had a prior complete laryngofissure. Laryngotracheoplasty and petiole repositioning were performed as a double‐stage surgery for 54 of 58 (91.5%) patients. Epiglottic petiole prolapse was persistent in 20 patients (33.9%) and became symptomatic for 14 of them (23.7%). The main preventive factor of petiole prolapse recurrence was pre‐epiglottic fat debulking at the time of the repositioning, with an odds ratio of 0.06 (95% confidence interval 0.007–0.6, P = 0.01). Stent placement, longer duration of stent placement, and double‐stage procedure also increased the likelihood of success (all P < 0.05).ConclusionPatients with petiole prolapse have a history of complete laryngofissure and multiple open airway surgeries. Pre‐epiglottic fat debulking and longer stent placement at the time of the repositioning surgery appear to significantly increase the long‐term success rate.Level of Evidence4Laryngoscope, 129:1984–1988, 2019
Feasibility and Safety of Split‐Liver Transplantation in a Nascent Framework of Deceased Donation
Authors: Cherukuru Ramkiran , Reddy Mettu Srinivas , Shanmugam Naresh P. , Rajalingam Rajesh , Kota Venugopal , Gunasekaran Vasanthakumar , Narasimhan Gomathy , Kaliamoorthy Ilankumaran , Rela Mohamed 
Published: December 2018

Split‐liver transplantation (SLT) is a valuable option for optimizing the use of good‐quality deceased donor grafts. It is not routinely reported outside the West because of limited deceased donor numbers, technical and organizational constraints, lack of experience, and a predominant living donor liver transplantation (LDLT) practice. At our center, 20% of the liver transplantations (LTs) are from deceased donors. We report our experience of SLT and compare outcomes with pediatric and adult LDLT recipients. A prospectively maintained database of all LT recipients between September 2009 and March 2017 was analyzed. Each pediatric SLT recipient was matched to 2 pediatric LDLT recipients for age, weight, urgency, and year of transplant. Each adult SLT recipient was similarly matched to 2 adult LDLT recipients for age, Model for End‐Stage Liver Disease score, and year of transplant. Intraoperative and postoperative parameters, including recovery time, morbidity (biliary and vascular complications, Clavien grade >IIIA complications), and mortality were compared. In total, 40 SLTs were performed after splitting 20 deceased donor livers (in situ, n = 11; hybrid split, n = 3; and ex vivo, n = 6). Recipients included 22 children and 18 adults. There were 18 livers that were split conventionally (extended right lobe and left lateral segment [LLS]), and 2 were right lobe–left lobe SLTs. Also, 3 LLS grafts were used as auxiliary grafts for metabolic liver disease. Perioperative mortality in SLT recipients occurred in 3 patients (2 children and 1 adult). Incidence of vascular, biliary, and Clavien grade >IIIA complications were similar between matched adult and pediatric SLT and LDLT groups. In conclusion, SLT is an effective technique with outcomes comparable to living donor grafts for adult and pediatric recipients. Using SLT techniques at centers with limited deceased donors optimizes the use of good‐quality whole grafts and reduces the gap between organ demand and availability.
A CMOS fully differential ring VCO with active inductors and I/Q outputs
Authors: Zhang Changchun , Wang Xinwen , Fang Junliang , Zhang Ying , Tang Lu 
Published: December 2018

AbstractA novel four‐stage fully differential ring voltage controlled oscillator (VCO) is presented and implemented in 0.18 μm CMOS technology. The fully differential delay cell is chosen over the pseudo‐differential one to avoid the cross‐coupling pair, increase the oscillation frequency and improve common‐noise suppression. The inductive shunt peaking technique with active inductors instead of its passive counterpart is used to expand the bandwidth of the delay cell and then increase the oscillation frequency of the VCO without the expense of excessive area. The current bleeding transistor pair is connected in shunt with the tuning transistor pair in order to make sure the VCO oscillate over the entire tuning voltage with proper phase noise. Measurement results show that, from a single voltage supply of 1.8 V and an occupied area of 475 μm × 275 μm, the proposed VCO achieves an oscillation frequency range from 3.25 to 4.2 GHz with the optimum phase noise of −92.28 dBc/Hz at 1 MHz and an optimum FOM of −154.80 dBc/Hz.
Characterizing a novel scintillating glass for application to megavoltage cone‐beam computed tomography
Authors: Hu Yue‐Houng , Shedlock Daniel , Wang Adam , Rottmann Joerg , Baturin Paul , Myronakis Marios , Huber Pascal , Fueglistaller Rony , Shi Mengying , Morf Daniel , Star‐Lack Josh , Berbeco Ross I. 
Published: December 2018

PurposeThe purpose of this study was to evaluate the performance of a prototype electric portal imaging device (EPID) with a high detective quantum efficiency (DQE) scintillator, LKH‐5. Specifically, image quality in context of both planar and megavoltage (MV) cone‐beam computed tomography (CBCT) is analyzed.MethodsPlanar image quality in terms of modulation transfer function (MTF), noise power spectrum (NPS), and DQE are measured and compared to an existing EPID (AS‐1200) using the 6 MV beamline for a Varian TrueBeam linac. Imager performance is contextualized for three‐dimensional (3D), MV‐CBCT performance by measuring imager lag and analyzing the expected degradation of the DQE as a function of dose. Finally, comparisons between reconstructed images of the Catphan phantom in terms of qualitative quality and signal‐difference‐to‐noise ratio (SDNR) are made for 6 MV images using both conventional and LKH‐5 EPIDs as well as for the kilovoltage (kV) on‐board imager (OBI).ResultsAnalysis of the NPS reveals linearity at all measured doses using the prototype LKH‐5 detector. While the first zero of the MTF is much lower for the LKH‐5 detector than the conventional EPID (0.6 cycles/mm vs 1.6 cycles/mm), the normalized NPS (NNPS) multiplied by total quanta (qNNPS) of the LKH‐5 detector is roughly a factor of seven to eight times lower, yielding a DQE(0) of approximately 8%. First, second, and third frame lag were measured at approximately 23%, 5%, and 1%, respectively, although no noticeable image artifacts were apparent in reconstructed volumes. Analysis of low‐dose performance reveals that DQE(0) remains at 80% of its maximum value at a dose as low as 7.5 × 10−6 MU. For a 400 projection technique, this represents a total scan dose of 0.0030 MU, suggesting that if imaging doses are increased to a value typical of kV‐CBCT scans (~2.7 cGy), the LKH‐5 detector will retain quantum noise limited performance. Finally, comparing Catphan scans, the prototype detector exhibits much lower image noise than the conventional EPID, resulting in improved small object representation. Furthermore, SDNR of H2O and polystyrene cylinders improved from −1.95 and 2.94 to −15 and 18.7, respectively.ConclusionsImaging performance of the prototype LKH‐5 detector was measured and analyzed for both planar and 3D contexts. Improving noise transfer of the detector results in concurrent improvement of DQE(0). For 3D imaging, temporal characteristics were adequate for artifact‐free performance and at relevant doses, the detector retained quantum noise limited performance. Although quantitative MTF measurements suggest poorer resolution, small object representation of the prototype imager is qualitatively improved over the conventional detector due to the measured reduction in noise.
1,2,3‐propanetriol radicals formed during oxidative stress
Authors: Durlak Piotr , Jerzykiewicz Maria , Ćwieląg‐Piasecka Irmina 
Published: December 2018

AbstractThe presented results attempt to approximate the proper structure of the radical formed as a result of the oxidation of 1,2,3‐propanetriol. To fulfil the aim unstable radical originated in 1,2,3‐propanetriol was trapped by PBN. Resulted spin adduct was measured using EPR spectroscopy and the isotropic hyperfine coupling constants aiso(14N) and aiso(1H) were obtained by simulation of the EPR spectrum. The next step consisted of conducting a comparative analysis of EPR parameters, based on the calculations conducted at the DFT and MP2 methods level in open‐shell formalism including solvent effects. For comparison, calculations were also carried out at the level of combined methods (UB3LYP/QCISD and UMP2/QCISD) in terms of the ONIOM formalism. Comparison of the experimental EPR data of the isotropic hyperfine coupling constants aiso(14N) and aiso(1H) with the calculated parameters indicate that oxidation of 1,2,3‐propanetriol leads to a carbon centred radical where unpaired electron is situated on the second (middle) carbon of 1,2,3‐propanetriol. What is important, this conclusion could be made regardless of the chosen calculation method. However, it could be stated that for calculation of the isotropic hyperfine coupling constants aiso(14N) and aiso(1H) of PBN/gly• adducts, UMP2 polarisable conductor calculation model with two ethanol molecules is explicitly defined.