bluuebunny/crossref_metadata_2025_split huggingface dataset:
Growth phenotypes and biosafety profiles in poliovirus‐receptor transgenic mice of recombinant oncolytic polio/human rhinoviruses
Authors: Cello Jeronimo , Toyoda Hidemi , DeJesus Nidia , Dobrikova Elena Y. , Gromeier Matthias , Wimmer Eckard 
Published: December 2007

AbstractThe use of oncolytic recombinant polioviruses has an important therapeutic potential in the treatment of human gliomas. This study was carried out to assess parameters of the utility of the oncolytic poliovirus/human rhinovirus type 2 chimeras (PV/HRV2). The prototype PV/HRV2 chimera was constructed containing the complete genome of wild‐type PV type 1 (Mahoney) [PV1(M)] in which the cognate IRES was replaced with that of HRV2 [called PV1(RIPO)]. A derivative of PV1(RIPO) is PV1(RIPOS) in which the capsid coding region (P1) was replaced with the capsid‐coding region of the PV type 1 (Sabin) [PV1(S)] vaccine strain. In addition, a third PV/HRV2 chimera was constructed containing the complete genome of PV1(S) in which the cognate IRES was replaced with that of HRV2 [termed PVS(RIPO)]. To analyze the growth phenotypes of PV/HRV2 recombinants [PV1(RIPO), PV1(RIPOS), PVS(RIPO)], one‐step growth experiments were performed in four human cell lines at three different temperatures. To address the safety profile, PVS(RIPO) was injected into the brain of CD155 tg mice at the dose 107 PFU. Then, clinical signs, persistence of the virus in the CNS and genetic stability of PVS(RIPO) replicating in the CNS were evaluated. The data obtained in the present study suggest (i) a correlation between temperature‐sensitive (ts) phenotype in both neuronal and non‐neuronal cell lines and neuroattenuation in experimental animals, (ii) that PVS (RIPO) is genetically stable on replication in the CNS of poliovirus‐susceptible mice. These findings highlight the safety of intracerebral inoculation of PVS(RIPO) for the treatment of human glioma. J. Med. Virol. 80:352–359, 2008. © 2007 Wiley‐Liss, Inc.
Characterization of a chemokine receptor CCR5‐negative T cell line and its use in determining human immunodeficiency virus type 1 phenotype
Authors: Binninger‐Schinzel Dorothea , Müller Daniela , Wolf Timo , Krause Birgit , Meye Britta , Winskowsky Gudrun , Raupp Sylvia , Norley Stephen , Brodt Reinhard , Werner Albrecht 
Published: December 2007

AbstractA human CD4‐positive T cell line from a donor homozygous negative for the chemokine receptor CCR5 was established, characterized, and used for determining the coreceptor usage of human immunodeficiency virus type 1 (HIV‐1) isolates. Clones of this IL‐2 dependent human T‐cell lymphotropic virus type 1 (HTLV‐I) immortalized cell line, named IsnoR5 clones 1 and 2, are susceptible to infection by HIV‐1 isolates that use CXCR4 as a coreceptor but resistant to infection by CCR5 tropic HIV‐1 viruses. HIV‐1 isolates whose replication is inhibited in IsnoR5 cells in the presence of the bicyclam AMD 3100, a CXCR4 specific inhibitor, utilize a coreceptor distinct from CCR5 and CXCR4. Using a panel of primary HIV‐1 isolates we have shown that a single T cell line is sufficient to discriminate between use of CCR5, CXCR4 or an alternative coreceptor. As IsnoR5 clone 1 cells revealed the existence of even minor populations of CXCR4‐using virus variants, they could be useful for the early identification of changes in coreceptor usage in HIV infected individuals facilitating the timely introduction of appropriate clinical treatments. J. Med. Virol. 80:192–200, 2008. © 2007 Wiley‐Liss, Inc.
HIV‐1 replication capacity and genotype changes in patients undergoing treatment interruption or lamivudine monotherapy
Authors: Gianotti Nicola , Tiberi Simon , Menzo Stefano , Danise Anna , Boeri Enzo , Galli Laura , Clementi Massimo , Lazzarin Adriano , Castagna Antonella 
Published: December 2007

AbstractThe objective of this study was to investigate the mechanisms underlying the virological and immunological changes occurring in failing HIV‐1 infected patients undergoing treatment interruption or lamivudine monotherapy (the E‐184V Study). Associations were sought between the de‐selection of individual reverse transcriptase and protease resistance mutations and replication capacity recovery, HIV‐RNA changes, and immunological changes. The replication capacity recovery was defined as the ratio between the replication capacity at weeks 24 or 48, and that measured at baseline. The replication capacity recovery, which was evaluable in 21 patients at week 24 and in 18 at week 48, was significantly higher in the treatment interruption than in the lamivudine group at week 24 (P = 0.002). Forty‐eight week replication capacity recovery was greater when the 184V (P = 0.023), the 41L (P = 0.02), or the 215Y mutation (P = 0.037) were deselected at week 12. A greater reduction in the CD4+/CD8+ ratio at week 48 (P = 0.038) was observed as the 184V mutation was deselected and the de‐selection of the 184V mutation at week 12 was the only independent predictor of the change of the CD4+/CD8+ ratio at week 48 from baseline at multivariable analysis (F‐value = 6.72, P = 0.021). In conclusion, among patients undergoing treatment interruption or lamivudine monotherapy, the recovery of HIV‐1 replication capacity was associated with the de‐selection of reverse transcriptase mutations. The de‐selection of the 184V mutation predicts independently a reduction in the CD4+/CD8+ ratio. J. Med. Virol. 80:201–208, 2008. © 2007 Wiley‐Liss, Inc.
From the Editor-in-Chief
Authors: Pashinin Pavel P. 
Published: December 2007

Dear readers,
In your hands is the first issue of the volume 5 of the journal Laser Physics
Letters. So, LPL enters its fifth year of publication. During this time, LPL has
become one of the leading journals in the field of laser physics and related topics.
The permanently rising impact factor confirms the high level reached by LPL.
This success is, first of all, due to the high level of articles from researchers of
about 51 countries, who have contributed to the journal. We are grateful to all
authors and readers for their support.
The Editorial Board, on their side, tries to do all in order to guarantee that LPL
would further move to the leading position. The process of peer refereeing takes
around three days on average. Efficient work of the Editorial Staff allows the
online publication of an accepted article two weeks after acceptance. Since that
time, the article becomes accessible on the website and can be cited, getting
a DOI classification. Such a fast processing is certainly of great importance,
especially in the case of priority reasons.
Laser Physics Letters has a section of brief review invited articles, which are written by the top scientists in the field.
These articles provide a concise survey of the most hot topics and could be useful for advanced researchers as well as for
students.
It is worth mentioning that LPL is one of the organizers of the annual International Laser Physics Workshops. This 2007
year Workshop was held in Leon, Mexico. And the next 2008 year Workshop will be held in Trondheim, Norway. We
invite all authors and readers of LPL to participate in the Workshop in Trondheim.
Sincerely Yours,
Pavel P. Pashinin
Sending signals: Nonverbal communication can speak volumes
Authors: Gentry William A. , Kuhnert Karl W. 
Published: December 2007

AbstractOf the many business challenges leaders face, communicating effectively with their employees is one of the most important, and effective communication is the foundation for a number of other leadership competencies. Leaders need to understand that they are never notcommunicating. As a result, their awareness and use of nonverbal communication may be a key factor in improving their leadership abilities.
Feedback inhibition of cholesterol synthesis and uptake
Authors: Stanley John C. 
Published: December 2007

AbstractCells can obtain the cholesterol they need for membrane function either by synthesizing it or by taking it up from the circulation. Both processes are regulated by feedback inhibition. The capacity for synthesis can be changed by changing the amount of the enzyme HMG‐CoA reductase while the capacity for uptake can be changed by changing the amount of the LDL receptor. Transcription factors called SREBPs regulate synthesis of both proteins. SREBPs are synthesized as inactive precursors which are retained in the endoplasmic reticulum (er) when membrane cholesterol levels are high. However, when membrane cholesterol levels begin to fall SREBPs are released from the er, activated in the Golgi apparatus and stimulate the synthesis of both proteins in the nucleus. The Nobel Prize winners Michael Brown and Joseph Goldstein have established the molecular mechanism for this example of feedback inhibition. This has led to the discovery of cellular proteins such as SCAP which can monitor membrane cholesterol content.
Alpha stable fats
Authors: Persson Marcus 
Published: December 2007

AbstractFats that are stable in the alpha crystal form instead of beta prime or beta (as normal) show some interesting physico‐chemical properties. They start to crystallize at a considerably higher temperature than normal fats, near the melting point, and they give a more elastic structure. They also crystallize faster as compared to non‐trans beta prime stable fats. These properties make them ideal for certain applications.
Photo‐Induced Cross‐Linking of Divinyl Ethers by Using Diphenyliodonium Salts With Highly Nucleophilic Counter Anions in the Presence of Zinc Halides
Authors: Kahveci Muhammet U. , Tasdelen M. Atilla , Yagci Yusuf 
Published: December 2007

AbstractThis study describes the use of diphenyliodonium salts with highly nucleophilic counter anions to photoinitiate the cationic cross‐linking of divinyl ethers. Both direct and indirect initiating modes are used. In the direct acting system, only a diphenyliodonium salt with a highly nucleophilic counter anion and a zinc halide are employed as initiator and activator, respectively. In the indirect systems, in addition to direct system components, photosensitive additives such as anthrecene, perylene, 2,2‐dimethoxy‐2‐phenyl acetophenone, benzophenone, and thioxanthone, which absorb the energy of the incident light and activate the iodonium salt, are used to initiate polymerization. All systems employed in this study initiated quite vigorous polymerizations.magnified image
An LTCC X‐band receiver front‐end using embedded multilayer substrate integrated waveguide filter
Authors: Chen Jixin , Hong Wei , Chen Xiaoping , Yan Pinpin , Lai Qinghua , Wu Ke 
Published: December 2007

AbstractA low‐temperature co‐fired ceramic (LTCC) X‐band receiver front‐end is designed using a novel embedded multilayer substrate integrated waveguide filter. The filter is a quasi‐elliptic type, fabricated into multilayers on LTCC process, making it compact as well as of low cost and high selectivity. Simulated and experimental results of the filter and X‐band receiver front‐end are presented. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 285–287, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23057
Simple microwave method for detecting water holdup
Authors: Sheikh Sharif I. , Alqurashi Khaled Y. , Ragheb Hassan A. , Babelli I. 
Published: December 2007

AbstractA microwave sensor is designed to measure the resonance behavior of the hydrocarbon mixture to determine the water holdup of a near horizontal oil carrying pipeline. This technique is particularly useful for detecting very small water holdup (<5%) as demonstrated by simulated and experimental results. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 354–355, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23059
C‐band half mode substrate integrated waveguide (HMSIW) filter
Authors: Zhang Xiaochuan , Xu Jun , Yu Zhiyuan , Dong YuLiang 
Published: December 2007

AbstractIn this letter, a novel inductive post half mode substrate integrated waveguide (HMSIW) bandpass filter is presented. The filter keeps the advantages of an SIW filter but with a reduction of nearly one‐half in size. A very good agreement is observed between the simulation and the measurements. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 275–277, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23064
Bandwidth enhancement technique with vertically slotted sidewalls in capacitive coupled antenna
Authors: Li Mei , Che Wenquan , Lau Puiyi , Yung Edward K. N. 
Published: December 2007

AbstractA novel capacitive coupled antenna has been introduced in this article; one circular ground with vertical‐slots sidewall is used to improve the bandwidth significantly. The antenna operates at 3 GHz, the impedance bandwidth at 10‐dB return loss is about 48.2%, and the gain of the butterfly radiation pattern is 3.8 dB. After introduction of the ground with vertical‐slots sidewall, the bandwidth of the antenna has been improved to 78.2%, about 62% bandwidth enhancement; the gain of this antenna is about 6.0 dB. Both numerical simulations and experimental data are presented, good agreement can be observed within. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 341–345, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23066
Compact printed monopole antenna for multiband WLAN applications
Authors: Song Yue , Jiao Yong‐Chang , Zhao Hui , Zhang Zheng , Weng Zi‐Bin , Zhang Fu‐Shun 
Published: December 2007

AbstractIn this paper, a novel compact printed monopole antenna with multiband operation for wireless local area networks (WLAN) is presented. A simple C‐shaped strip and a straight strip of this antenna provide two resonant paths to achieve 2.4‐, 5.2‐, and 5.8‐GHz multiband operation. Good similar omnidirectional radiation patterns in the azimuth plane of the proposed antenna with compact radiator size of 11.5 × 8.5 mm2 in the desired frequency bands have been achieved. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 365–367, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23078
Extension of the unitary property for the generalized scattering matrix of microwave networks
Authors: García‐Baños Beatriz , Peñaranda‐Foix Felipe L. , Catalá‐Civera José M. 
Published: December 2007

AbstractIn this work, a new property for the generalized scattering matrix of microwave networks is derived and numerically verified. Apart from its theoretical significance, this property can be very useful for rapid verification of numerical methods such as Mode Matching among others. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 356–358, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23085
Comparison of GAINP/GAAS HBT RFDS with resistive loads and shunt‐shunt feedback active loads
Authors: Wei Hung‐Ju , Meng Chinchun , Chang YuWen , Huang Guo‐Wei 
Published: December 2007

AbstractAn integrated GaInP/GaAs heterojunction bipolar transistor (HBT) regenerative frequency divider (RFD) with active loads is demonstrated from 4 to 26 GHz. In this work, the RFDs with resistive loads and active loads are fabricated in the same chip for comparison. From the measured results, the active loading type obviously has wider operating frequency and lower input sensitivity. The fmax/fmin ratio of 6.5 is higher than that of general RFDs. The core power consumption is 36.7 mW at the supply voltage of 5 V. The chip size is 1.0 × 1.0 mm2. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 433–435, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23096
Resonant cavity for the measurement of microwave magnetic permeability using the small perturbation theory
Authors: Gouveia D. X. , Costa L. C. , Valente M. A. 
Published: December 2007

AbstractThe design of a rectangular cavity resonator implies to solve the Maxwell equations inside that cavity, respecting the boundary conditions. The resonance frequencies appear as conditions in the solutions of those equations. When a small piece of a magnetic material is introduced in the cavity, the resonance frequency and the quality factor changes. These effects can be used in the measurement of the permeability of the material. The relations are derived from the perturbation theory of resonant cavities and are simple when we consider only the first‐order perturbation in the magnetic field caused by the sample. This is guaranteed when linearity exists between the measured perturbation and the volume of the inserted sample. In this work, a resonant cavity to measure the magnetic permeability of a material, at 2.16 GHz, was developed and characterized. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 399–402, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23098
A comparative investigation of SRR‐ and CSRR‐based band‐reject filters: Simulations, experiments, and discussions
Authors: Öznazı V. , Ertürk V. B. 
Published: December 2007

AbstractA comparative investigation of split‐ring resonator (SRR)‐ and complementary split‐ring resonator (CSRR)‐based band‐reject filters is performed. These compact band‐reject filters are obtained by loading simple 50‐Ω microstrip lines with SRRs and CSRRs that have exactly the same shape and dimensions. Unlike the previous studies, stopband characteristics of these filters, such as resonance frequency, band‐width, sharpness, and amount of attenuation in the rejection region based on the number of SRR or CSRR stages, are investigated in a detailed and comparative manner. Based on simulations that are accompanied by experimental results, it has been observed that some of the aforementioned stopband characteristics of SRR‐based band‐reject filters are significantly different than those of CSRR‐based band‐reject filters. This makes SRR‐ or CSRR‐based filters preferable depending on applications. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 519–523, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23119
Compact design of T‐type monopole antenna with asymmetrical ground plane for WLAN/WiMAX applications
Authors: Chen Wen‐Shan , Yu Yen‐Hao 
Published: December 2007

AbstractThe article proposed and studied a compact coplanar waveguide‐feed antenna for WiMAX applications. In this design, using notches on the ground plane and trapezoid‐feed line is to generate broadband operation of 10‐dB return loss from 1.95 to 6.55 GHz. Furthermore, embedded a narrow slit etching on the radiation patch accounts for triple‐band operation of 1.68–2.71 GHz, 3.26–4.06 GHz, and 5.03–6.24 GHz. It plays a role as a filter to eliminate the undesired band. The proposed antenna with a band‐reject characteristic is calibrated for WLAN/WiMAX applications which covers the band from 2.4 to 2.7, 3.3 to 3.8, and 5.15 to 5.85 GHz. And, this antenna has advantages of good radiation characteristics, compact size, and omni‐directional patterns. Details of the proposed antenna configuration and experimental results are discussed. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 515–519, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23120
Nonlinear effects in split ring resonators loaded with heterostructure barrier varactors
Authors: Carbonell Jorge , Boria Vicente E. , Lippens Didier 
Published: December 2007

AbstractThe advantages afforded by the symmetrical C(V) characteristics of Heterostructure Barrier Varactor (HBV) diodes for the fabrication of nonlinear metamaterials are investigated numerically. The studies are conducted by means of full‐wave numerical modelling along with circuit analysis. It is believed that the HBV technologies can replace the conventional Schottky diode not only in up and down frequency conversion left‐handed devices, but also by bringing new functionality in terms of space filtering for unbiased devices. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 474–479, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23122
Optimization of polygonal Fresnel zone plates
Authors: Alda Javier , Boreman Glenn 
Published: December 2007

AbstractThe performance of Fresnel zone plates having polygonal boundaries between zones has been studied for polygons with a low number of sides. An optimized polygonal shape has been analytically defined by minimizing the mismatched area between the circular and the polygonal pseudo‐Fresnel zones. The square polygon has been analyzed in more depth than the others because of its simple symmetry. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 536–541, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23125
Internal shorted planar monopole antenna embedded with a resonant spiral slot for penta‐band mobile phone application
Authors: Wu Chih‐Hsien , Wong Kin‐Lu 
Published: December 2007

AbstractAn internal shorted planar monopole antenna embedded with a resonant spiral slot for GSM850/900/DCS/PCS/UMTS operation in the mobile phone is presented. The planar monopole is printed on an FR4 substrate of small size 10 × 45 mm2, and a spiral slot of length 108 mm is embedded therein. The planar monopole is then placed above and perpendicular to the top edge, with a small distance of 7 mm, of the system ground plane of the mobile phone to operate as an internal antenna. A coupled feed printed on the top no‐ground portion of the system circuit board is used to excite both the planar monopole and the spiral slot to generate two wide bands covering GSM850/900 and DCS/PCS/UMTS operation, respectively. The antenna is also suitable to integrate with the associated electronic components, such as the speaker, to achieve a compact integration of the antenna inside the mobile phone. Experimental and SPEAG SEMCAD‐X simulation results of the proposed antenna are presented. The user's hand effects on impedance and radiation characteristics of the antenna are also analyzed. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 529–536, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23126
Antenna covering both digital television and 2.45‐GHz ISM bands
Authors: Chang The Nan , Yang Shu‐Wei 
Published: December 2007

AbstractIn this paper, a dual‐band antenna covering both DTV and 2.45‐GHz ISM bands is presented. An inset‐fed monopole antenna is responsible for radiation in the DTV band. The ISM band is taken account by a strip dipole etched on backside of the monopole antenna. The antenna may also be used for dual RFID bands. Detailed design inclusive of using the inset‐feed to broaden the bandwidth is discussed and experiment was done to verify the simulation. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 425–428, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23132
Experimental analysis of GaN HEMT and Si LDMOS in analog predistortion power amplifiers for WCDMA applications
Authors: Lee Yong‐Sub , Lee Mun‐Woo , Jeong Yoon‐Ha 
Published: December 2007

AbstractComparative analysis of GaN HEMT and Si LDMOS in analog predistortion power amplifiers (PAs) for WCDMA applications is represented. For validation, GaN HEMT and Si LDMOS PAs are designed and implemented with an analog predistorter, and tested for one‐tone and 4‐carrier WCDMA signals at 2.14 GHz. The measured results show that the GaN HEMT PA shows better predistortability and more stable temperature and frequency characteristics compared with the Si LDMOS PA. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 393–396, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23134
Erratum: Calibration of accelerometers by using an extrinsic fiber optic probe
Authors: Binu S. 
Published: December 2007

AbstractOriginally published Microwave Opt Technol Lett 49 (2007), 2700‐2703. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 549, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23137