bluuebunny/crossref_metadata_2025_split huggingface dataset:
It's you, not them: Strategies for becoming a smarter leader
Authors: Sloan Karlin 
Published: December 2007

AbstractWe have moved from the Information Age into the Age of Interdependence, in which smart leadership entails asking the right questions rather than knowing all the answers. Drawing on the concept of Appreciative Inquiry, the author discusses how to develop the appreciative attitude and mind‐set needed to lead in the midst of complexity. Four strategies are presented: applying the “appreciative eye” to work from the positive, letting go of being the expert, embracing curiosity, and practicing the art of inquiry. The article includes techniques to discover leadership strengths and prepare less‐than‐receptive teams for positive change.This article is reprinted from the book, Smarter, Faster, Better: Strategies for Effective, Enduring, and Fulfilled Leadership, by Karlin Sloan, with Lindsey Pollak (Jossey‐Bass, 2006). © 2006 Karlin Sloan.
The postoperative recurrence and the occurrence of second primary carcinomas in patients with early gastric carcinoma
Authors: Yamamoto Manabu , Yamanaka Takeharu , Baba Hideo , Kakeji Yoshihiro , Maehara Yoshihiko 
Published: December 2007

AbstractObjectiveEarly gastric cancers have recently become more prevalent, and therefore, characterization of the features of patients who develop recurrence and second cancers is necessary for the development of effective postoperative follow‐up strategies.MethodsWe evaluated the clinicopathological features and the timing of the development of both recurrence and second primary cancer after surgery for early gastric cancer in 671 patients.ResultsThe incidence rate of recurrent early gastric cancer was 2.1%, and the incidence rate of second primary cancer was 4.8%, with an associated death rate of 3.3%. Most multiple primary cancers cases involved the colorectum and the lung. A multivariate analysis of overall survival identified multiple primary cancers, age, and sex as prognostic factors for early gastric cancer. The average interval from surgery to diagnosis of recurrence was identified as 3.4 ± 2.1 years. The average interval for peritoneal recurrence was shorter than that for hematogenous recurrence (P < 0.05). The average interval from diagnosis of early gastric cancer to diagnosis of the second primary cancer was 7.1 ± 4.6 years.ConclusionPatients with early gastric cancer, particularly patients who are males, elderly and have lymphatic involvement, tend to have a greater risk of developing a second primary cancer and recurrence, respectively. J. Surg. Oncol. 2008;97:231–235. © 2007 Wiley‐Liss, Inc.
Validated reversed phase LC method for quantitative analysis of polymethoxyflavones in citrus peel extracts
Authors: Wang Zhenyu , Li Shiming , Ferguson Stephen , Goodnow Robert , Ho Chi‐Tang 
Published: December 2007

AbstractPolymethoxyflavones (PMFs), which exist exclusively in the citrus genus, have biological activities including anti‐inflammatory, anticarcinogenic, and antiatherogenic properties. A validated RPLC method was developed for quantitative analysis of six major PMFs, namely nobiletin, tangeretin, sinensetin, 5,6,7,4′‐tetramethoxyflavone, 3,5,6,7,3′,4′‐hexamethoxyflavone, and 3,5,6,7,8,3′,4′‐heptamethoxyflavone. The polar embedded LC stationary phase was able to fully resolve the six analogues. The developed method was fully validated in terms of linearity, accuracy, precision, sensitivity, and system suitability. The LOD of the method was calculated as 0.15 μg/mL and the recovery rate was between 97.0 and 105.1%. This analytical method was successfully applied to quantify the individual PMFs in four commercially available citrus peel extracts (CPEs). Each extract shows significant difference in the PMF composition and concentration. This method may provide a simple, rapid, and reliable tool to help reveal the correlation between the bioactivity of the PMF extracts and the individual PMF content.
Out in the open: How team leaders can deal with sensitive issues
Authors: Lindoerfer Dennis 
Published: December 2007

AbstractA wide range of sensitive issues can emerge in a team environment, and the range of causes can be equally wide. Such issues can threaten a team's viability and the quality of the final work product. Team leaders may need to intervene when such situations develop, and once they have decided to intervene, they need to know how best to do so.
Amphiphilic Comb‐Like Polymers Based on Poly(oxyethylene)s as Drug‐Delivery Carriers
Authors: Kim Ki‐Hyun , Lee Jong‐Chan , Lee Jonghwi 
Published: December 2007

AbstractComb‐like polymers with biocompatible oxyethylene backbones and amphiphilic side groups were synthesized via polymer‐analogous reactions. Using these polymers, indomethacin‐loaded polymeric micelles were fabricated with various drug‐to‐polymer weight ratios using the oil‐in‐water emulsion technique. In addition, the size, size distribution, CMC, drug‐loading content, and entrapment efficiency of the polymeric micelles were analyzed. The volume‐weighted diameters of polymeric micelles ranged from 10 to 140 nm and were narrowly distributed for passive targeting drug delivery. The CMCs were lower (≈10−8 M) than for conventional surfactants and block copolymers.magnified image
Theoretical and experimental approaches of bacteria‐biomaterial interactions
Authors: Missirlis Y.F. , Katsikogianni M. 
Published: December 2007

AbstractAbout the influence of substrate roughness and spray particle size on the adhesion of thermal spray coatingsBacterial adhesion to surfaces is a complicated process influenced by many factors including the bacteria (surface energy and charge, molecular details), the substratum surface (chemical composition, roughness, configuration, surface energy and charge) and environmental factors (serum proteins, flow conditions, temperature, bacterial concentration, time of exposure, antibiotics). The models that have been proposed for the quantitative prediction of bacteria‐material interactions are based on colloidal theories and macromolecular binding considerations. Two categories of techniques used in calculating bacterial adhesion strength and bacteria‐material interactions have been proposed: those that utilize fluid flowing against adherent bacteria and those that manipulate single bacteria (atomic force microscopy and optical tweezers), and are concisely reviewed.
Porous titanium implant materials and their potential in orthopedic surgery
Authors: Schuh A. , Luyten J. , Vidael R. , Hönle W. , Schmickal T. 
Published: December 2007

AbstractIn orthopedic surgery bony defects remains a challenge. In generally autologous or heterologous bony transplants can be used. Main problem is the limited amount of bone and donor site morbidity. Nowadays excellent implants and scaffolds at low costs are necessary in respect to the financial problems in our health care system and the strong financial limitations in clinical medicine. Recently a biomimetic approach, in which a porous synthetic bone substitute with properties similar to these of trabecular bone has been developed (VITOFOAM™). Aim of our study was to investigate whether cp‐Ti or Ti6Al4V or stainless steel (316L) porous metal implants achieve material properties comparable to bone.Materials and MethodsThree cp‐Ti, Ti6Al4V and stainless steel (316L) porous metal specimen each with a pore size of 150 to 600 μm have been tested in respect to determine the Young’s Modulus E (GPa), Compression Strength (MPa) and Porosity (%) under axial compression.Results Young’s Modulus of the cp‐ Ti samples was in the range of 1.2 to 2.8 GPa, for Ti6Al4V 2.3 to 4.1 GPa could be achieved. Compression Strength for cp‐ Ti and Ti6Al4V ranged from 30 to 65 MPa with porosity values ranged from 71 to 80 %.DiscussionThe highly porous nature of VITOFOAM™ combined with the good biocompatibility of cp‐ Ti or Ti6Al4V and the mechanical properties make these materials ideal bone scaffolds. Trabecular bone shows pore sizes of 300–1500 μm, Young’s Modulus of 0.2–2 GPa and Compression Strength from 5–50 MPa. Porosity of spongious bone ranges from 30 to 95 %. These values are comparable to the values achieved with VITOFOAM™. Porous titanium foam with its osteoconductive properties may therefore be an ideal and cheap alternative. Implant costs can be lowered to 50 % for implants e.g. for intercorporal interbody fusion in spinal surgery. Actually further research is done to show the possibility in spinal surgery or loading technologies with Tricalciumphosphat, Hydroxylapatit, Antibiotics or Cytostatics.
Tremor dominant parkinsonism: Clinical description and LRRK2 mutation screening
Authors: Clarimón Jordi , Pagonabarraga Javier , Paisán‐Ruíz Coro , Campolongo Antonia , Pascual‐Sedano Berta , Martí‐Massó José‐Félix , Singleton Andrew B. , Kulisevsky Jaime 
Published: December 2007

AbstractTremor dominant parkinsonism (TDP) is characterized by initial prominent resting and action tremor, mild parkinsonism, unpredictable response to medication, and a better prognosis than idiopathic Parkinson's disease (PD). We report on clinical features and longitudinal course of 26 patients suffering from TDP. Mean disease duration was 6.5 ± 3 years, 61.5% of patients had a positive family history of tremor, 73% did not need drug treatment, performance of 123I‐Ioflupane SPECT showed reduced striatal tracer uptake in 65.4% of patients, and odor identification testing was pathologic in all the patients tested (n = 22). Co‐occurrence of action and resting tremor were the most annoying and disabling symptoms in all the patients, whereas rigidity and/or bradykinesia were clinically irrelevant in most of them. We also sequenced the full coding region of the Leucine‐rich repeat kinase 2 gene (LRRK2) in all patients. We found a novel Val2390Met mutation that was not found in 864 chromosomes. Our results suggest a broader clinical heterogeneity related to LRRK2 mutations and points towards TDP as a subtype within the spectrum of PD, in which disabling tremor but otherwise mild parkinsonian signs and a better prognosis are the main characteristics. © 2007 Movement Disorder Society
Executive dysfunction using behavioral assessment of the dysexecutive syndrome in Parkinson's disease
Authors: Kamei Satoshi , Hara Motohiko , Serizawa Kan , Murakami Masato , Mizutani Tomohiko , Ishiburo Motoko , Kawahara Ritsuko , Takagi Yukiko , Ogawa Katsuhiko , Yoshihashi Hirokazu , Shinbo Satoru , Suzuki Yutaka , Yamaguchi Mai , Morita Akihiko , Takeshita Jun , Hirayanagi Kaname 
Published: December 2007

AbstractThe objective of this study was to evaluate the executive dysfunction (ExD) in Parkinson's disease (PD) using the Behavioral Assessment of the Dysexecutive Syndrome (BADS), which provides a wide‐range assessment of ExD. The BADS and the Unified Parkinson's Disease Rating Scale (UPDRS) were investigated in 63 nondemented PD patients who revealed scores of ≥24 points on the Mini‐Mental State Examination based on the DSM‐IV. Multiple logistic regression analysis was performed to evaluate the predisposing factors to ExD, which was defined as <70 points on the age‐controlled standardized score. The total score on the UPDRS was a significant independent predisposing factor to ExD. Among the various parts of the UPDRS, part II was the significant factor for ExD. The profile scores of all subtests on the BADS in patients with ExD were significantly lower than those of patients without ExD. All profile scores decreased with severity of PD, but the changes among these scores differed. ExD in nondemented PD predisposed to a greater severity of PD, particularly as regards the activity of daily living impairment. Nondemented PD revealed wide‐range components of ExD. All components of ExD were impaired with severity of PD, but the patterns of each component exhibited variety. © 2007 Movement Disorder Society
Low‐cost Raman amplifier for CWDM systems
Authors: Fugihara Meire C. , Pinto Armando Nolasco 
Published: December 2007

AbstractWe propose a low‐cost Raman based amplification scheme for coarse wavelength division multiplexing systems. We also present a mathematical model suitable to be used in the design, analyze and optimization of Raman amplification systems. We validate the mathematical model with extensive comparisons with experimental results. Good agreement is obtained between numerical and experimental results. An amplification system offering more than 18 dB of gain over more than 80 nm is obtained using only four low power (up to 500 mW) semiconductor lasers. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 297–301, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23075
Analysis, realization, and measurement of broadband miniature antennas for digital TV receivers in handheld terminals
Authors: Jose Roo Ons Maria , Hauck Joachim , Buchholz Martin , Aguado‐Agelet Fernando 
Published: December 2007

AbstractHandheld terminals for digital terrestrial television reception and their possible integration in GSM or 3G convergence terminals using the digital video broadcasting–handheld standard (DVB‐H) [ETSI EN 302 304, Digital Video Broadcasting (DVB); Transmission System for Handheld Terminals (DVB‐H), V1.1.1, June 2004] must support the UHF band (470–702 MHz or 470–860 MHz) as specified in the EICTA radio specification. Beside the required new receiver concepts for such battery‐powered and small terminals, there is also the request for broadband integrable antennas, which cover the mentioned frequency band. This article depicts a possible antenna structure and simulation results for the antenna performance and compares these findings with measurement results. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 293–297, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23082
Self‐calibration circuits and routines for low‐cost measuring systems
Authors: Sokoll Thorsten , Jacob Arne F. 
Published: December 2007

AbstractA Low‐cost measurement system suited for in situ moisture monitoring of buildings is presented. The system consists of a robust and compact resonant microwave sensor linked to a miniaturized, low‐cost vector network analyzer. Several such systems can be controlled by a central monitoring station. The measurement accuracy is enhanced significantly by vectorial self‐calibration. To determine the magnitude and the required 360°‐phase information, an inexpensive combined gain and 180°‐phase detector is used, where the full phase information is obtained by adequately modeling the sensor's and the calibration standards' phase response. Different self‐calibration circuits are examined and their suitability is proved by comparative measurements. Finally, the system's performance is tested in a high humidity environment. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 287–293, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23083
Seven GHz high gain 0.18 μm CMOS Gilbert downconverter with wide‐swing cascode current mirrors
Authors: Tseng Sheng‐Che , Meng Chinchun , Huang Guo‐Wei 
Published: December 2007

AbstractA downconversion micromixer with low‐voltage cascode current mirrors at both transconductor and load stages has been implemented using the 0.18‐μm CMOS technology in this article. This micromixer has a single‐to‐differential RF input transconductor formed by the NMOS wide‐swing cascode current mirror, while the PMOS wide‐swing cascode current mirror is also employed to improve conversion gain. A super source follower is used at the output to reduce the output impedance and to transfer more power to the load. This fully integrated downconverter has the high conversion gain of 16 dB and high LO‐to‐IF isolation of 50 dB at 7 GHz. The current consumption of the mixer core is 1 mA at 1.8 V supply voltage. Thanks to the low‐voltage operation property of the wide‐swing cascode current mirror, six transistors can be stacked within 1.8 V supply voltage. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 435–437, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23095
Emission characteristics of near‐ultraviolet two‐dimensional organic photonic crystal lasers
Authors: Dong Ying , Song Junfeng , Cheng Chuanhui , Jiang Wenhai , Yu Shukun , Du Guotong , Wang Xu 
Published: December 2007

AbstractWe demonstrate near‐ultraviolet frequency two‐dimensional organic‐photonic‐crystal laser using resonator structures that offer two‐dimensional distributed feedback at room temperature. The gain medium is N,N′‐di‐1‐naphthyl‐N, N′‐diphenylbenzidine (NPB) which is deposited on lithographically patterned silica structure. We observe surface emitting lasing action with the central beam normal to the surface and the far‐field emission characteristics of this laser. The devices operate in the blue spectral region, and exhibit very low threshold energies for oscillation (0.3 kW/cm2). The far field is also shown to contain information about the quality of the photonic crystal. This emission pattern offers a convenient and powerful way to evaluate the nature of laser action in such resonators. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 382–385, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23102
A class‐E CMOS RF power amplifier with cascaded class‐D driver amplifier
Authors: Jang Jaemin , Lee Hongtak , Park Changkun , Hong Songcheol 
Published: December 2007

AbstractA 800‐MHz power amplifier is designed using a 0.18‐μm RF CMOS process. The voltage‐combining method is used for power combining. A transmission line transformer on a printed circuit board (PCB) is designed as a power combiner. For the switching mode power amplifier, a cascaded class‐D driver amplifier is proposed using a feedback resistor and a DC‐blocking capacitor. The power amplifier has an output power of 32.9 dBm and a power‐added efficiency of 60.25%. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 470–473, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23106
Broadband fixed phase shifter for C‐band applications
Authors: Abbosh A. M. 
Published: December 2007

AbstractThe design of a fixed phase shifter for C‐band applications is presented. The proposed device is composed of two parts: a quadrature 3‐dB directional coupler and the Wilkinson combiner. The quadrature coupler used in the proposed phase shifter is based on the edge‐coupled microstrip lines with a slotted ground plane to make the gap required between the coupled lines feasible. The simulated and measured results of the phase shifter show a 45° ± 5° fixed phase shift across the band 4–8 GHz with less than 1‐dB insertion loss and better than 12‐dB return loss at the centre of the C‐band. The designed device also shows a flat group delay, which enables its use in a narrow pulse transmission/reception and in the high data rate systems. The designed phase shifter has a compact size with dimensions of 30 mm × 30 mm. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 396–399, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23133
Conformational analysis of phorboxazole bis‐oxazole oxane fragment analogs by NMR spectroscopy and molecular modeling simulations
Authors: Fontana Carolina , Incerti Marcelo , Moyna Guillermo , Manta Eduardo 
Published: December 2007

AbstractWe present a detailed conformational study of a simplified synthetic analog of the bis‐oxazole oxane fragment found in the cytostatic agents phorboxazole A and B based on results from NMR spectroscopy and molecular modeling simulations. Complete 1H and 13C resonance assignments for the bis‐oxazole oxane system were carried out through the use of COSY, HSQC, HMBC, TOCSY, and HSQC‐TOCSY experiments, and its conformational preferences in solution were investigated by analysis of 3JHH coupling constants and NOE enhancements obtained from 1D and 2D NOESY experiments. In order to solve inconsistencies from our preliminary structural studies, simulated annealing studies were performed to thoroughly sample the phase space available to the molecule. Our results reveal that the six‐membered oxane ring, which constitutes the most important moiety regarding the three‐dimensional (3D) structure and flexibility of the analog, exists in rapid equilibrium between its two accessible chair conformers in an approximate ratio of 70:30. The information gathered from these studies will be of critical importance in our efforts to prepare novel compounds with phorboxazole‐like structure and activity. Copyright © 2008 John Wiley & Sons, Ltd.
Using indirect covariance spectra to identify artifact responses in unsymmetrical indirect covariance calculated spectra
Authors: Martin Gary E. , Hilton Bruce D. , Blinov Kirill A. , Williams Antony J. 
Published: December 2007

AbstractSeveral groups of authors have reported studies in the areas of indirect and unsymmetrical indirect covariance NMR processing methods. Efforts have recently focused on the use of unsymmetrical indirect covariance processing methods to combine various discrete two‐dimensional NMR spectra to afford the equivalent of the much less sensitive hyphenated 2D NMR experiments, for example indirect covariance (icv)‐heteronuclear single quantum coherence (HSQC)‐COSY and icv‐HSQC–nuclear Overhauser effect spectroscopy (NOESY). Alternatively, unsymmetrical indirect covariance processing methods can be used to combine multiple heteronuclear 2D spectra to afford icv‐13C15N HSQC‐HMBC correlation spectra. We now report the use of responses contained in indirect covariance processed HSQC spectra as a means for the identification of artifacts in both indirect covariance and unsymmetrical indirect covariance processed 2D NMR spectra. Copyright © 2007 John Wiley & Sons, Ltd.
1H, 13C and 77Se NMR study of tetraselenafulvalene derivatives supported by novel H(Se)C and H(C)Se triple‐resonance experiments at natural abundance
Authors: Maloň Michal , Imakubo Tatsuro , Koshino Hiroyuki 
Published: December 2007

AbstractA series of substituted tetraselenafulvalenes (TSeFs) was studied in solution using 1H, 13C and 77Se NMR spectroscopy. Chemical shifts and heteronuclear coupling constant values were determined and assigned. Novel two‐dimensional H(Se)C and H(C)Se triple‐resonance correlation experiments were applied at natural abundance in order to accomplish 13C and 77Se signal assignments. Using this approach, all the signals were unambiguously assigned and atom connectivity was established in the studied TSeF derivatives. These experiments, allowing signal assignments of quaternary carbons, may find wide application in the study of substituted TSeF and other organoselenium compounds. To the best of our knowledge, triple‐resonance experiments with proton detection have been applied to organoselenium compounds for the first time. Copyright © 2007 John Wiley & Sons, Ltd.