bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of bending and orientation on the fiber modal mach–zehnder interferometer
Authors: Liu Yan , Liu Bo , Miao Yinping , Zhang Hao , Liu Jian 
Published: November 2011

AbstractBy introducing two notches along the fiber axis in a normal single‐mode fiber through CO2 laser exposure, a vector curvature sensor based on a modal Mach–Zehnder interferometer has been proposed and experimentally demonstrated.Transmission spectral response regarding the spectrum shift and transmission loss variation of the proposed sensor has been characterized and the experimental results show that due to the nonperfect circular geometry of the fiber cladding, the peak wavelength and the transmission loss of its spectrum are sensitive to applied bending orientation. Our proposed sensor has many advantages such as low cost, easy fabrication and good stability under harsh environment. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:136–139, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26471
A 3.5‐GHz three‐stage doherty power amplifier with bias controller using power tracking method
Authors: Lee Mun‐Woo , Kam Sang‐Ho , Jeong Yoon‐Ha 
Published: November 2011

AbstractThis letter represents a three‐stage Doherty power amplifier with a bias controller.The driving amplifier controls the input power of the carrier cell to eliminate the gate current of the carrier cell at high input power levels. The gate bias voltage of the driving amplifier is controlled by a power tracking method according to input power levels. For verifications, the driving amplifier, carrier, and peaking cells are fabricated using 10‐W, 15‐W, 35‐W gallium nitride high electron mobility transistors, respectively, at 3.5 GHz. From a continuous wave, the power‐added efficiencies (PAEs) of 34.4 and 39.6% are achieved at ∼9.5‐ and 4.3‐dB back‐off powers, respectively. For a worldwide interoperability for microwave access signal, the proposed DPA has the PAE of 37.1 % at an output power of 41.5 dBm. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:23–26, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26474
Numerical simulation and experimental investigation of photonic bandgap photonic crystal fibers with interstitial holes
Authors: Liu Zhaolun , Wang Wei , Liu Xueqiang 
Published: November 2011

AbstractThe photonic bandgaps and modal properties of triangular lattice photonic bandgap photonic crystal fibers (PBG‐PCFs) with interstitial holes are analyzed by the full‐vector plane‐wave expansion method. We analyzed the influence of the air holes array triangular lattice cladding and the interstitial holes on the photonic bandgaps and calculated the spectrum range of photonic bandgaps. We found that the PBG‐PCFs with interstitial holes have a fundamental bandgap and a secondary bandgap. The transmission spectrum of PBG‐PCFs is measured. The results indicate that there are two strong transmission bands in the near‐infrared, but hardly any transmission phenomena in the visible region, which show that there are some bandgaps in near‐infrared wavelength. The results of the experiments are consistent with the numerically simulative results using the full‐vector plane‐wave expansion method. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:233–236, 2012
Single‐feed circularly polarized microstrip patch antenna stacked with periodic structure
Authors: Chaimool Sarawuth , Rakluea Chawalit , Chung Kwok L. , Akkaraekthalin Prayoot 
Published: November 2011

AbstractA single‐feed circularly polarized microstrip patch antenna by using a stacked periodic structure (SPS) is proposed and investigated. By using SPS as a superstrate with a single‐feed microstrip patch antenna, gain, impedance and axial ratio bandwidths are significantly improved. It is also shown that this SPS has lower cross‐polarization levels compared to conventional stacked patches. It uses low‐cost FR‐4 and air substrates and, hence, it is attractive for applications where the production cost is of importance. Moreover, a parametric study has been carried out to investigate the effects caused by SPS. Both experimental and theoretical results of the antenna have been presented and discussed. Good agreement between measured and simulated results is obtained. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:50‐54, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26495
Compact bandpass filter using novel transformer‐based coupled resonators on integrated passive device glass substrate
Authors: Huang Chien‐Hsiang , Chen Chien‐Hsun , Horng Tzyy‐Sheng 
Published: November 2011

AbstractThis letter presents a transformer‐based coupled resonator structure to design a bandpass filter (BPF) using integrated passive device technology on glass substrate. The use of the transformer not only greatly reduces the size of the BPF but also easily uses the coupling to control the bandwidth of the filter. Using such a transformer‐based coupled BPF structure not only provides the advantage of compact size but also creates extra transmission zeros to enhance roll‐off rate or desired stopband rejection. Measured results verify the validity of this design methodology and show good agreement with simulated ones. For demonstration purpose, two example filters are implemented with different bandwidths. Both good performance and miniaturization are achieved for the proposed filters, and the expected transmission zeros are also observed. The filter can be embedded to wafer‐level three‐dimensional packaging and integration for wireless system‐in‐package applications. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:257‐262, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26498
Compact bandpass filter using novel transformer‐based coupled resonators on integrated passive device glass substrate
Authors: Huang Chien‐Hsiang , Chen Chien‐Hsun , Horng Tzyy‐Sheng 
Published: November 2011

AbstractThis article presents a transformer‐based coupled‐resonator structure to design a bandpass filter (BPF) using integrated passive device technology on glass substrate. The use of the transformer not only greatly reduces the size of the bandpass filter but also easily uses the coupling to control the bandwidth of the filter. Using such a transformer‐based coupled BPF structure not only provides the advantage of compact size but also creates extra transmission zeros to enhance roll‐off rate or desired stopband rejection. Measured results verify the validity of this design methodology and show good agreement with simulated ones. For demonstration purpose, two example filters are implemented with different bandwidths. Both good performance and miniaturization are achieved for the proposed filters, and the expected transmission zeros are also observed. The filter can be embedded to wafer‐level 3D packaging and integration for wireless system‐in‐package applications. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:3–7, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26511
A novel antenna design technique using finite element method and transmission line theory
Authors: Ostadrahimi Majid , Noghanian Sima , Lotfollah Shafai  
Published: November 2011

AbstractA combination method is utilized to design eagle feed Vivaldi antenna.The antenna structure is discretized into arbitrary number of sections whose characteristic impedances and their corresponding dimensions are evaluated using transmission line theory and finite element method, respectively. The proposed antenna is compared with two classical designs, theoretically and experimentally. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:126–133, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26516
Solar and photovoltaic forecasting through post‐processing of the Global Environmental Multiscale numerical weather prediction model
Authors: Pelland Sophie , Galanis George , Kallos George 
Published: November 2011

ABSTRACTHourly solar and photovoltaic (PV) forecasts for horizons between 0 and 48 h ahead were developed using Environment Canada's Global Environmental Multiscale model. The motivation for this research was to explore PV forecasting in Ontario, Canada, where feed‐in tariffs are driving rapid growth in installed PV capacity. The solar and PV forecasts were compared with irradiance data from 10 North‐American ground stations and with alternating current power data from three Canadian PV systems. A 1‐year period was used to train the forecasts, and the following year was used for testing. Two post‐processing methods were applied to the solar forecasts: spatial averaging and bias removal using a Kalman filter. On average, these two methods lead to a 43% reduction in root mean square error (RMSE) over a persistence forecast (skill score = 0.67) and to a 15% reduction in RMSE over the Global Environmental Multiscale forecasts without post‐processing (skill score = 0.28). Bias removal was primarily useful when considering a “regional” forecast for the average irradiance of the 10 ground stations because bias was a more significant fraction of RMSE in this case. PV forecast accuracy was influenced mainly by the underlying (horizontal) solar forecast accuracy, with RMSE ranging from 6.4% to 9.2% of rated power for the individual PV systems. About 76% of the PV forecast errors were within ±5% of the rated power for the individual systems, but the largest errors reached up to 44% to 57% of rated power. © Her Majesty the Queen in Right of Canada 2011. Reproduced with the permission of the Minister of Natural Resources Canada.
pParse: A method for accurate determination of monoisotopic peaks in high‐resolution mass spectra
Authors: Yuan Zuo‐F ei , Liu Chao , Wang Hai‐Peng , Sun Rui‐Xiang , Fu Yan , Zhang Jing‐Fen , Wang Le‐Heng , Chi Hao , Li You , Xiu Li‐Yun , Wang Wen‐Ping , He Si‐Min 
Published: November 2011

AbstractDetermining the monoisotopic peak of a precursor is a first step in interpreting mass spectra, which is basic but non‐trivial. The reason is that in the isolation window of a precursor, other peaks interfere with the determination of the monoisotopic peak, leading to wrong mass‐to‐charge ratio or charge state. Here we propose a method, named pParse, to export the most probable monoisotopic peaks for precursors, including co‐eluted precursors. We use the relationship between the position of the highest peak and the mass of the first peak to detect candidate clusters. Then, we extract three features to sort the candidate clusters: (i) the sum of the intensity, (ii) the similarity of the experimental and the theoretical isotopic distribution, and (iii) the similarity of elution profiles. We showed that the recall of pParse, MaxQuant, and BioWorks was 98–98.8%, 0.5–17%, and 1.8–36.5% at the same precision, respectively. About 50% of tandem mass spectra are triggered by multiple precursors which are difficult to identify. Then we design a new scoring function to identify the co‐eluted precursors. About 26% of all identified peptides were exclusively from co‐eluted peptides. Therefore, accurately determining monoisotopic peaks, including co‐eluted precursors, can greatly increase peptide identification rate.
The 2011 Human Liver Proteome Project (HLPP) Workshop September 5, 2011, Geneva, Switzerland
Authors: Elortza Felix , Beretta Laura , Zhang Xueli , He Fuchu , Mato José M. 
Published: November 2011

AbstractDuring the 10th HUPO Annual World Congress held in Geneva (Switzerland) from 4th to 7th September, a workshop on Human Liver Proteome Project (HLPP) Initiative took place. Four research groups presented their latest results from different ongoing projects. Later on, during the HLPP executive members' meeting, the status of current projects and the next possible steps to be taken were discussed.
Nowcasting of precipitation by an NWP model using assimilation of extrapolated radar reflectivity
Authors: Sokol Zbynek , Zacharov Petr 
Published: November 2011

AbstractTwo methods for assimilating radar reflectivity into the COSMO numerical weather prediction (NWP) model were compared to precipitation forecasts. The first method assimilated observed radar reflectivity, and the second one assimilated observed and extrapolated radar reflectivity. The assimilation technique was based on the correction of the model's water vapour mixing ratio. The extrapolation was performed by the COTREC method and was 1 hour long. The model's horizontal resolution was 2.8 km.The comparison of methods was based on verification of the observed and forecast hourly precipitation. The comparison was performed for the 1st, 2nd and 3rd hours of each forecast. On the whole, 45 forecasts from nine days of convective precipitation were evaluated for each hour. The evaluation included subjective verification and the following objective skill scores: Fractions Skill Scores, SAL and a measure based on a categorical‐probabilistic approach.The results confirmed that assimilation complemented by the extrapolated data improves the accuracy of precipitation forecasts. The improvement was obvious in a majority of the single forecasts studied, and it is confirmed by all evaluation techniques. COSMO forecasts that used the extrapolation showed reasonable competence in forecasting for the first and the second hours. Copyright © 2011 Royal Meteorological Society
Das Marfan-Syndrom und verwandte monogene Krankheiten der Aorta
Authors: Robinson P.N. , Arslan-Kirchner M. , Gehle P. , Schmidtke J. , von Kodolitsch Y. 
Published: November 2011

Zusammenfassung
Das Marfan-Syndrom (MFS) ist eine autosomal-dominant vererbte, pleiotrope Erkrankung des Bindegewebes mit einer Prävalenz von etwa 1:5000 Personen. Zwischen und auch innerhalb von Familien weisen betroffene Personen variable Kombinationen von Manifestationen im Herz-Kreislauf-System, Auge, Skelett sowie in der Lunge, Haut und Dura mater auf. Beim klassischen MFS treten viele Manifestationen während oder kurz vor der Pubertät auf; schwerwiegende Komplikationen sind vor dem Erwachsenenalter eher selten.
Viele Patienten imponieren durch einen sog. marfanoiden Körperhabitus mit Hochwuchs, langen und schmalen Gliedmaßen (Dolichostenomelie), einer langen und schmalen Kopfform (Dolichozephalie) und anderen skelettalen Auffälligkeiten wie Pes planus oder Skoliose. Eine Skoliose tritt bei etwa 60% der Betroffenen auf, Pectus excavatum oder carinatum bei etwa zwei Dritteln. Eine fast immer beidseitige Ectopia lentis kommt bei vielen Patienten vor (etwa 60%).
Bei manchen Patienten bestehen therapiepflichtige Komplikationen wie schwerwiegende Skoliose oder Trichterbrust, Spontanpneumothorax, Netzhautablösung oder ein durch Linsenluxation hervorgerufenes akutes Glaukom. Die gefährlichste Komplikation ist jedoch die akute Dissektion der aufsteigenden Aorta, die in aller Regel die Folge einer langsam fortschreitenden Aortendilatation darstellt. Vor der Einführung moderner Therapieformen, die in diesem Artikel behandelt werden, betrug die durchschnittliche Lebenserwartung MFS-Betroffener nur 32 Jahre. Heute kann bei Betreuung in multidisziplinären Zentren von einer durchschnittlichen Lebenserwartung von über 60 Jahren ausgegangen werden. Dieser Artikel bietet dem Leser einen Überblick über bewährte und neue Diagnose- und Therapiekonzepte für MFS und andere hereditäre Erkrankungen der Aorta.
Co‐development of internalizing and externalizing problem behaviors: Causal direction and common vulnerability
Authors: Lee Eunju J. , Bukowski William M. 
Published: November 2011

ABSTRACTLatent growth curve modeling was used to study the co‐development of internalizing and externalizing problems in a sample of 2844 Korean fourth graders followed over four years. The project integrated two major theoretical viewpoints positing developmental mechanism: directional model and common vulnerability model. Findings suggest that (a) boys and girls follow different developmental trajectories in both domains in early adolescence; (b) bidirectional progression from initial levels of each domain to the developmental pattern of the other domain emerged among boys, while only unidirectional progression from externalizing to internalizing problem emerged among girls; and (c) all risk factors are not equally risky across domain and gender; parental violence was a common cross‐domain risk factor for boys, whereas affiliation with delinquent friends was a common cross‐domain risk factor for girls. Implications for future research and intervention were discussed.
Use of Minimally Invasive Distal Metatarsal Osteotomy for Correction of Hallux Valgus
Authors: Chun-Kit Tong , Yuen-Fong Ho 
Published: November 2011

Purpose Minimally invasive surgeries have become increasing popular in Orthopaedics. This study evaluated the clinical and radiographic outcomes of application of the concept for correction of mild-to-moderate hallux valgus deformity. Methods From November 2005 to Feb 2010, 20 patients with hallux valgus deformity had distal metatarsal osteotomy performed using the minimally invasive surgical techniques described by P. Bosch. Three patients had bilateral operation done at the same setting. The patient age ranged from 29 years to 75 years (mean 55.1 years) with 2 men and 18 women. One 2 mm Kirschner wire was used to splint the osteotomy site, which was removed after 4 weeks to 5 weeks. The mean followup time was 22 months. Results All except one foot showed excellent to good grading using the American Orthopaedic Foot and Ankle Society Hallux Scale (total 100 points). The mean score improved from preoperative 53.0 points to postoperative 91.8 points. The hallux valgus angle improved from a preoperative mean of 31.3° to 15.7°, and the first intermetatarsal angle improved from 16.7° to 7.7°. There was no major complication encountered. All patients showed bony union with no avascular necrosis. Three patients had mild pin tract infection. Two patients had backing out of the K-wire and one of them required reinsertion. So far, no patients required reoperation due to recurrence. Conclusion Good clinical and radiographic results have been achieved with minimally invasive techniques for treatment of hallux valgus. This is an acceptable alternative operation for mild-to-moderate hallux valgus.
Is the Fibronectin‐Aggrecan Complex Present in Cervical Disk Disease?
Authors: Gajendran Varun K. , Reuter Merrill W. , Golish S. Raymond , Hanna Lewis S. , Scuderi Gaetano J. 
Published: November 2011

ObjectiveTo investigate the presence of inflammatory cytokines and the fibronectin‐aggrecan complex (FAC) in persons undergoing surgical treatment for cervical radiculopathy caused by disk herniation.DesignSingle‐center, prospective, consecutive case series.SettingA single large academic institution.PatientsA total of 11 patients with radiculopathic pain and magnetic resonance imaging findings positive for disk herniation elected to undergo single‐level cervical diskectomy.Methods or InterventionsLavage was performed by needle injection and aspiration upon entering the disk space for fluoroscopic localization before diskectomy.Main Outcome MeasurementsThe lavage fluid was assayed for pH and the FAC, as well as for the cytokines interleukin‐6 (IL‐6), interferon‐γ, monocyte chemotactic protein (MCP), and macrophage inhibitory protein‐1β.ResultsThe subjects were 7 women and 4 men with a mean age of 50.6 years (SE 9.7; range, 36‐70 years). The mean concentrations (SE; range) in picograms per milliliter were 7.9 (4.4; 0‐44) for IL‐6, 25.3 (15.5; 0‐159) for interferon‐γ, 16.1 (11.9; 0‐121) for MCP, and 6.1 (2.8; 0‐29) for macrophage inhibitory protein‐1β. The optical density of the FAC at 450 nm was 0.151 (0.036; 0.1‐0.32), and the pH was 6.68 (0.1; 6.10‐7.15). Statistically significant correlations were found between MCP and FAC (P = .036) and between FAC and pH (P = .008).ConclusionsBiochemical analysis of injured cervical intervertebral disks reveals the presence of inflammatory markers such as MCP, fragments of structural matrix proteins such as FAC, and a correlation with pH. Further evaluation of the FAC as a potential diagnostic biomarker or therapeutic target is warranted in the cervical spine.
Depression and anxiety in palliative care inpatients compared with those receiving palliative care at home
Authors: Austin Patricia , Wiley Sharon , McEvoy Peter M. , Archer Leigh 
Published: November 2011

AbstractObjective:This study compared the prevalence of anxiety and depression as measured on the Hospital Anxiety and Depression Scale (HADS) in palliative care patients being treated at home with those being treated as inpatients.Method:The participants were palliative care patients being treated at home (n = 46) and palliative care inpatients (n = 46). Subjects were assessed for functionality on the Karnofsky Performance Status Scale (KPS) and anxiety and depression were measured on the HADS.Results:The results showed that ~20% of all patients were depressed and anxious as measured on the HADS, regardless of the cutoff criteria. There was no significant difference in depression and anxiety between the two groups when socioeconomic status and functionality were controlled for. Functionality, as measured on the KPS, was uniquely a predictor of depression, and younger patients were shown to have greater anxiety.Significance of results:The results suggest that home-based palliative care patients and palliative care inpatients should receive equal psychological support, and that clinicians need to be aware of the psychological vulnerability of younger and less-functional patients. The prevalence of depression and anxiety indicates that all palliative care patients should be screened for psychological distress, to identify those who need further assessment and treatment.
Palliative medicine consultation impacts DNR designation and length of stay for terminal medical MICU patients
Authors: Lustbader Dana , Pekmezaris Renee , Frankenthaler Michael , Walia Rajni , Smith Frederick , Hussain Erfan , Napolitano Barbara , Lesser Martin 
Published: November 2011

AbstractObjective:The purpose of this study was to assess the impact of a palliative medicine consultation on medical intensive care unit (MICU) and hospital length of stay, Do Not Resuscitate (DNR) designation, and location of death for MICU patients who died during hospitalization.Method:A comparison of two retrospective cohorts in a 17-bed MICU in a tertiary care university-affiliated hospital was conducted. Patients admitted to the MICU between January 1, 2003 and June 30, 2004 (N = 515) were compared to MICU patients who had had a palliative medicine consultation between January 1, 2005 and June 1, 2009 (N = 693). To control for disease severity, only patients in both cohorts who died during their hospitalization were considered for this study.Results:Palliative medicine consultation reduced time until death during the entire hospitalization (log-rank test,p < 0.01). Time from MICU admission until death was also reduced (log-rank test,p < 0.01), further demonstrating the impact of the palliative care consultation on the duration of dying for hospitalized patients. The intervention group contained a significantly higher percentage of patients with a DNR designation at death than did the control group (86% vs. 68%, χ2test,p < 0.0001).Significance of results:Palliative medicine consultation is associated with an increased rate of DNR designation and reduced time until death. Patients in the intervention group were also more likely to die outside the MICU as compared to controls in the usual care group.