bluuebunny/crossref_metadata_2025_split huggingface dataset:
The median‐fin skeleton of the Eastern Atlantic and Mediterranean clingfishes Lepadogaster lepadogaster (Bonnaterre) and Gouania wildenowi (Risso) (Teleostei: Gobiesocidae)
Authors: Konstantinidis Peter , Conway Kevin W. 
Published: August 2009

AbstractPrevious research on the osteology of the Gobiesocidae focused mostly on the neurocranium and the thoracic sucking disc (formed by the paired‐fin girdles). Little attention has been paid to the skeleton of the median fins. The dorsal‐ and anal‐fin skeleton of Lepadogaster lepadogaster and other gobiesocids (excluding Alabes, which lacks these fins) are characterized by the absence of spines, branched fin‐rays, and middle radials. In gobiesocids, the distal radials never ossify and consist of elastic hyaline‐cell cartilage. Gouania wildenowi is unique among gobiesocids in having further reductions of the dorsal‐ and anal‐fin skeleton, including a notable decrease in the size of the proximal‐middle radials in an anterior–posterior direction. Unlike L. lepadogaster, which exhibits a one‐to‐one relationship between the dorsal‐ and anal‐fin rays and proximal‐middle radials, G. wildenowi has a higher number of proximal‐middle radials than distal radial cartilages and fin rays in the dorsal and anal fins. In G. wildenowi, the dorsal‐ and anal‐fin rays do not articulate with the distal tip of the proximal‐middle radials but are instead positioned between proximal‐middle radials, which is unusual for teleosts. Previously unrecognized dorsal and ventral pads of elastic hyaline‐cell cartilage are also present in the caudal skeleton of L. lepadogaster, G. wildenowi, and all other gobiesocids examined. J. Morphol., 2010. © 2009 Wiley‐Liss, Inc.
Surface‐enhanced Raman micro‐spectroscopy of DNA/RNA bases adsorbed on pyroxene rocks as a test ofin situsearch for life traces on Mars
Authors: Muniz‐Miranda Maurizio , Gellini Cristina , Salvi Pier Remigio , Pagliai Marco 
Published: August 2009

AbstractSERS spectroscopy with 785‐nm laser excitation minimizing fluorescence emission is exploited for remote analysis of life traces in an extraterrestrial environment. Adenine and guanine, nucleobases present in both DNA and RNA strands, and microRNA containing adenine and guanine have been used as testing ligands for identifying traces of nucleic acids in Martian rocks and sediments. SERS spectra of these nucleobase samples adsorbed on pyroxene substrates have been investigated with micro‐Raman apparatus in the absence of sample manipulation and inducing the signal enhancement by deposition of silver colloidal nanoparticles over the pyroxene/nucleobase substrates. An order‐of‐magnitude estimate of the sample amount responsible for the SERS spectra is given. Copyright © 2009 John Wiley & Sons, Ltd.
A predictive model of minimally invasive bipolar fractional radiofrequency skin treatment
Authors: Berube Dany , Renton Bradley , Hantash Basil M. 
Published: August 2009

AbstractBackgroundA novel bipolar fractional radiofrequency (FRF) system with temperature feedback was recently developed for facial laxity and rhytid treatment. The study objective was to develop a model based on published in vivo human skin data that could be extrapolated to aid physicians in making future dosimetry choices under clinically relevant conditions.MethodsA standard electrode pair designed for use with the FRF system was modeled using finite element analysis (FEA). The model incorporated temperature feedback from sensors within the electrodes, selectable target dermal temperatures, and an epidermal cooling plate. The model was validated using data obtained during clinical treatments. Thermal injury as a function of target temperatures and electrical conductivity was simulated and then validated using in vivo histology results.ResultsLesion size predicted by the model matched histology samples. Lesion width and height were 1.65 and 1.24 mm compared to 1.75 and 1.21 mm for the model versus in vivo, respectively. The thermal profile remained confined between the proximal and distal ends of the electrodes. Ninety‐six percent of power was deposited in the dermis. Dose–response curves showed a nonlinear volume increase to 1.7 and 4.7 mm3 at target temperatures of 65 and 75°C, respectively, and a low sensitivity to electrical conductivity variation.ConclusionFEA of the Bipolar FRF system revealed that isotherms were mainly within the dermis. Lesion volume was found to be less sensitive to changes in electrical conductivity than to target temperature and duration. Simulation results matched well the in vivo lesion dimensions. To our knowledge, this is the first model of bipolar FRF treatment capable of accurately predicting the thermal response of human skin in vivo. The findings of this study allow for the development of accurate dose–response curves to aid physicians in parameter selection and achieving efficacy and safety profiles. Lasers Surg. Med. 41:473–478, 2009. © 2009 Wiley‐Liss, Inc.
In vitro large diameter bowel anastomosis using a temperature controlled laser tissue soldering system and albumin stent
Authors: Spector David , Rabi Yaron , Vasserman Irena , Hardy Amos , Klausner Joseph , Rabau Micha , Katzir Abraham 
Published: August 2009

AbstractBackground and ObjectiveIn today's age of advancing surgical technology, there is a need for better and simpler methods of tissue bonding. The use of lasers for tissue welding or soldering is one of these sutureless methods. In 30 years of laser tissue bonding (LTB) research, published reports of cylindrical organ anastomosis were limited to small diameters. The tension resisted by the anastomosis, which is caused by the intraluminal pressure, is also proportional to the organ diameter. Therefore the anastomosis of large diameter organs requires significantly stronger mechanical strength. The aim of this study is to demonstrate such an anastomosis.Materials and MethodsIn vitro anastomosis of porcine small bowel was performed by either LTB or sutures. Anastomosis in the laser group (number of samples, n = 15) included two main stages of soldering. The bowel edges were approximated over a solid albumin stent and heated with a temperature controlled GaAs laser system to 75°C. This was followed by spreading liquid albumin on the anastomotic line and heating by the same system again to 75°C. The control group (n = 5) was sutured anastomosis. All anastomoses were assessed by burst pressure measurement.ResultsThe burst pressure of the laser group attained 170±40 mmHg which was significantly higher than that of the sutured group 83±37 mmHg (P < 0.001).ConclusionThis report describes the in vitro LTB anastomosis of a large diameter cylindrical organ. The immediate bond strength, as estimated by burst pressure measurements, was double compared to sutured anastomosis. Lasers Surg. Med. 41:504–508, 2009. © 2009 Wiley‐Liss, Inc.
Ex vivo and in vivo evaluation of laser‐induced thermotherapy for nodular thyroid disease
Authors: Ritz Jörg‐P. , Lehmann Kai S. , Zurbuchen Urte , Knappe Verena , Schumann Thomas , Buhr Heinz J. , Holmer Christoph 
Published: August 2009

AbstractBackground and ObjectiveThe prevalence of thyroid nodules ranges between 2% and 60% depending on the population studied. However, minimally invasive procedures like laser‐induced thermotherapy (LITT) are increasingly used to treat tumors of parenchymatous organs and seem to be suitable for singular thyroid nodules as well. Their successful clinical application depends on the induction of sufficiently large lesions and a knowledge of the energy parameters required for complete thermal ablation. The aim of this study was to establish a dose–response relationship for LITT of thyroid nodules.Materials and MethodsThermal lesions were induced in healthy porcine thyroid glands ex vivo (n = 110) and in vivo (n = 10) using an Nd:YAG laser (1,064 nm). Laser energy was applied for 300 seconds in a power range of 10–20 W. During the ablation, continuous temperature measurement at a distance of 5 and 10 mm from the applicator was performed. The lesions were longitudinally and transversally measured, and the volume was calculated. Furthermore, enzyme histochemical analysis of the thyroid tissue was performed.ResultsThe maximum inducible lesion volumes were between 0.74 ± 0.18 cm3 at a laser power of 10 W and 3.80 ± 0.41 cm3 at 20 W. The maximum temperatures after ablation were between 72.9 ± 2.9°C (10 W) and 112.9 ± 9.2°C (20 W) at a distance of 5 mm and between 49.5 ± 2.2°C (10 W) and 73.2 ± 6.7°C (20 W) at a distance of 10 mm from the applicator. The histochemical analysis demonstrates a complete loss of NADPH dehydrogenase activity in thermal lesions as a sign of irreversible cell damage.ConclusionsThis study is the first to demonstrate a dose–response relationship for LITT of thyroid tissue. LITT is suitable for singular thyroid nodules and induces reproducible clinically relevant lesions with irreversible cell damage in an appropriate application time. Lasers Surg. Med. 41:479–486, 2009. © 2009 Wiley‐Liss, Inc.
Electrospinning of Novel Poly(ester amide)s
Authors: Garg Priya , Klee Doris , Keul Helmut , Möller Martin 
Published: August 2009

AbstractNovel PEAs derived from 1,4‐butanediol, dimethyl adipate and a preformed α,ω‐amino alcohol were synthesised and successfully electrospun from solution. The effects of increasing the ratio of amide/ester groups in the copolymer, polymer concentration, solvent mixtures and applied voltage on fibre morphology and diameter were investigated. The obtained fibres (diameter 180–450 nm) were randomly oriented. The fibre quality and homogeneity increased with increasing amide concentration. The solvent mixture CHCl3/HCOOH gave the best electrospinning results. The ultra‐fine fibres were characterised using SEM, DSC and FT‐IR, showing that the electrospun fibres are amorphous as compared to the pristine samples. These fibres are potential candidates for use as scaffolds in tissue engineering.magnified image
A new method for scoring additive multi‐attribute value models using pairwise rankings of alternatives
Authors: Hansen Paul , Ombler Franz 
Published: August 2009

AbstractWe present a new method for determining the point values for additive multi‐attribute value models with performance categories. The method, which we refer to as PAPRIKA (Potentially All Pairwise RanKings of all possible Alternatives), involves the decision‐maker pairwise ranking potentially all undominated pairs of all possible alternatives represented by the value model. The number of pairs to be explicitly ranked is minimized by the method identifying all pairs implicitly ranked as corollaries of the explicitly ranked pairs. We report on simulations of the method's use and show that if the decision‐maker explicitly ranks pairs defined on just two criteria at‐a‐time, the overall ranking of alternatives produced by the value model is very highly correlated with the true ranking. Therefore, for most practical purposes decision‐makers are unlikely to need to rank pairs defined on more than two criteria, thereby reducing the elicitation burden. We also describe a successful real‐world application involving the scoring of a value model for prioritizing patients for cardiac surgery in New Zealand. We conclude that although the new method entails more judgments than traditional scoring methods, the type of judgment (pairwise rankings of undominated pairs) is arguably simpler and might reasonably be expected to reflect the preferences of decision‐makers more accurately. Copyright © 2009 John Wiley & Sons, Ltd.
Polarimetric multilongitudinal‐mode distributed Bragg reflector fiber laser sensor for strain measurement
Authors: Zhang Hao , Luo Jianhua , Liu Bo , Wang Shuangxia , Jia Chenglai , Ma Xiurong 
Published: August 2009

AbstractA polarimetric multilongitudinal‐mode distributed Bragg reflector fiber laser sensor is proposed and experimentally demonstrated. We have theoretically analyzed the mode beat mechanism of this laser sensor, which is verified by the experimental observation, and its application in strain measurement has also been studied. Experimental results indicate that both of the longitudinal mode beat (LMB) and birefringence‐induced polarization mode beat signals have linear strain dependence, and the coefficients of determination reach 0.9991 and 0.9908, respectively. One possible way to improve the sensitivity of LMB‐based sensing has been investigated as well. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2559–2563, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24671
Wideband impedance‐transforming three‐port power divider using lumped elements
Authors: Cho Seung‐Hyun , Park Chan Hyeong , Chung In‐Young , Jeong Jinho 
Published: August 2009

AbstractIn this article, we propose a new wideband impedance‐transforming three‐port power divider using lumped elements. Instead of a π‐network used in the conventional lumped Wilkinson power divider, an L‐type matching network is employed in the new design, which keeps quality(Q)‐factors low during impedance transformation, allowing wideband performance. The simulation proves that the proposed power divider achieves wider bandwidth than the conventional one in the performance of return loss, isolation and insertion loss. A 2 GHz power divider which transforms the impedance from 25 to 50 Ω was designed using the derived equations. The measurement showed the insertion loss of −3.3 dB, return loss of −27.1 dB and isolation of −24.7 dB at 1.9 GHz with broadband performance. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2570–2573, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24675
Integrated CMOS impulse UWB receiver front‐end design
Authors: Miao Meng , Nguyen Cam 
Published: August 2009

AbstractA single‐chip broadband CMOS receiver front‐end, integrating a low‐noise amplifier (LNA), a correlator, and a template pulse generator, was investigated in nonsinusoidal time‐domain environment for possible use as an impulse‐type ultra‐wideband (UWB) receiver front‐end. Particularly, the CMOS LNA and the multiplier making up the core component of the correlator were designed, fabricated, and tested to verify operation in the UWB range. Time‐domain results of the integrated CMOS receiver front‐end demonstrate its workability as a receiver for nonsinusoidal UWB applications. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2590–2595, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24682
A compact wideband PIFA
Authors: Chung K. L. , Tam W. Y. , Kan H. K. 
Published: August 2009

AbstractIn this article we present a modified planar inverted‐F antenna that is compact and has a wide impedance bandwidth. The antenna incorporates a T‐shaped slot on the antenna and a folded patch to increase the path length of the antenna and hence improve its bandwidth. The 10‐dB return loss bandwidth of the antenna is 81.3% and exhibits quasi omni‐directional far‐field patterns. The overall dimension of the compact antenna is 34 mm × 8.0 mm × 8.0 mm. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2554–2556, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24684
UWB bandpass filters using short‐circuited shunt stub‐embedded multiple‐mode resonators
Authors: Wong Sai Wai , Zhu Lei 
Published: August 2009

AbstractAn ultra‐wideband (UWB) bandpass filter with good out‐of‐band rejection is presented in this work. As a starting part of designing UWB filter, a shunt short‐circuited stub is introduced at the center of a half‐wavelength resonator and it can generate two transmission zeros near the lower and upper cutoff frequencies. With the use of even‐ and odd‐mode approach, this initial multiple‐mode resonator is characterized and designed to build up a bandpass filter with good UWB passband and highly attenuated out‐of‐band skirt. Next, a coupled‐line section with cross‐coupling property is formed in this short‐circuited stub so as to widen the concerned upper‐stopband due to excitation of two more transmission zeros. Finally, a UWB bandpass filter prototype is fabricated to experimentally validate the attractive in‐band and out‐of‐band performances as predicted in theory. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2556–2559, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24687
Signal reshaping in a transmission line with negative group velocity behavior
Authors: Monti Giuseppina , Tarricone Luciano 
Published: August 2009

AbstractAn analytical, numerical, and experimental study of the dispersion of a transmission line with negative group velocity is presented. The propagation of amplitude‐modulated signals in the transmission line anomalous dispersion region is specifically analyzed, investigating the effects on the pulse reshaping of the system losses. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2627–2633, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24688
A micromachined SiGe HBT ultra‐wideband low‐noise amplifier by BiCMOS compatible ICP deep‐trench technology
Authors: Huang Pen‐Li , Lin Yu‐Tso , Wang Tao , Lin Yo‐Sheng , Lu Shey‐Shi 
Published: August 2009

AbstractIn this article, we demonstrate that the power gain (S21) and noise figure (NF) performances of a SiGe HBT Ultra‐Wideband Low‐Noise Amplifier (UWB LNA) can be remarkably improved by removing the silicon underneath the UWB LNA with BiCMOS‐process compatible backside inductively‐coupled‐plasma (ICP) deep trench technology. The results show that increases of 1.9 dB (from 11.2 dB to 13.1 dB) and 4.2 dB (from 7.7 dB to 11.9 dB) in S21, and decreases of 0.59 dB (from 5.08 dB to 4.49 dB) and 0.74 dB (from 6.2 dB to 5.46 dB) in NF were achieved at 10 GHz and 13 GHz, respectively, for the SiGe HBT UWB LNA after the backside ICP dry etching. The excellent performances of the SiGe HBT UWB LNA with suspended inductors suggest that it is very suitable for UWB system applications. Besides, the BiCMOS‐process compatible backside ICP etching technique is very promising for BiCMOS integrated circuit (IC) applications. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2598–2601, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24691
The RF characteristics of micromachined coplanar waveguide in 0.13 μm CMOS technology by CMOS compatible ICP dry etching
Authors: Wang Tao , Lu Shey‐Shi , Lin Yo‐Sheng , Juang Yin‐Zong , Huang Guo‐Wei 
Published: August 2009

AbstractA coplanar waveguide (CPW) was implemented in 0.13 μm CMOS technology and then postprocessed by CMOS compatible inductively‐coupled plasma etching, which removed the silicon underneath the coplanar strips. Transmission line parameters such as characteristic impedance ZO, attenuation constant α, substrate capacitance/conductance C/G, series inductance/resistance L/R, as a function of frequency were extracted. It is found that α, C, and G can be greatly improved after silicon removal. Specifically, a 0.45 dB/mm reduction (from 0.5 to 0.05 dB/mm) in α, a 1.6 mS/mm reduction (from 1.6 to ∼0 mS/mm) in G, and a 43.9% reduction (from 92.8 to 52.1 fF/mm) in C were achieved at 20 GHz. In addition, this work also investigates the dielectric loss αdand conductive loss αcof the CPW. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2665–2668, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24693
Very‐low‐profile monopole antennas for concurrent 2.4‐ and 5‐GHz WLAN access‐point applications
Authors: Su Saou‐Wen 
Published: August 2009

AbstractIn this article, a very‐low‐profile, six‐antenna multiple‐input multiple‐output (MIMO) system aimed at operating in the concurrent 2.4 and 5 GHz bands for WLAN access‐point applications is proposed. The MIMO system mainly consists of an antenna ground plane and six short‐circuited monopole antennas, among which the three antennas are designated for 2.4 and 5 GHz operation, respectively. The antennas are set in a sequential, rotating arrangement on the ground plane, and the 2.4 and 5 GHz antennas are facing each other one by one. The results show that well port isolation can be obtained together with good radiation characteristics. With a low profile of 6 mm in height, the proposed design can easily fit into wireless access points or routers and allow the 2.4‐ and 5‐GHz band signals to be simultaneously received and transmitted with no need of external diplexer. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2614–2617, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24700
Fractal Koch dipole antenna for UHF band application
Authors: Karim Mohd Nazri A. , Rahim Mohamad Kamal A. , Masri Thelaha 
Published: August 2009

AbstractThe fractal Koch curve is one of the popular fractals shape. This article discussed the analysis of the fractal Koch dipole antenna (FKDA) using log periodic technique. The effect of flare angle of the antenna has been described to reduce the antenna size. The antenna is operated at ultrahigh frequency (UHF) band frequency between 460 MHz and 4 GHz. The analysis is based on the number of elements, degree of flare angle, current distribution, and radiation pattern of the antennas. The antenna has been designed and simulated using computer simulation technology (CST) and fabricated using FR4 board. The performance of the antennas has been measured, analyzed, and discussed in this article. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2612–2614, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24702
A dual‐band split‐ring monopole antenna for WLAN applications
Authors: Cumhur Basaran Siddik , E. Erdemli Yunus 
Published: August 2009

AbstractIn this article, a novel dual‐band microstrip monopole antenna based on split‐ring elements is proposed for WLAN (2.4/5 GHz) applications. The antenna fed by a two‐stage microstrip line has fairly small dimensions and provides 7.5 and 25.5% impedance bandwidth performance at the respective bands. Also, the antenna exhibits almost uniform radiation patterns at each frequency band. The measurement results of the fabricated antenna are in good agreement with the simulations. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2685–2688, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24708
Design of a band‐stop UWB antenna with two L‐shaped stubs
Authors: Shin Jaekon , Hong Seokjin , Choi Jaehoon 
Published: August 2009

AbstractIn this article, a novel ultra‐wideband (UWB) antenna with band‐stop characteristic is proposed. The UWB characteristic of the proposed antenna is achieved by adopting two spiral elements. By attaching two L‐shaped stubs along the microstrip feed line, the band‐stop performance can be achieved. The designed antenna has a small size and operates across the frequency range from 3.17 to over 11 GHz to meet a 10‐dB return loss requirement while providing band‐stop performance in the frequency band from 5.14 to 5.96 GHz. Measured results reveal that the proposed antenna has good radiation performance and is suitable for UWB applications. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2656–2660, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24710