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National Synchrotron Radiation Research Center (NSRRC) in Taiwan has initialized the construction of Taiwan Photon Source (TPS) synchrotron accelerator project. This 3 GeV, 500 mA beam current third-generation synchrotron accelerator will have a total of seven insertion device beam lines at day 1 after commissioning. That is, there will be one 2 × EPU48, five IU22 and one U5 undulator beamline. Corresponding front end components such as fixed masks, photon beam position monitor, photon absorber, slits and heavy metal shutter have been designed; manufacturing of these subsystems are on the way. Several prototype assemblies are completed, tested and will be reported in this paper.

Due to the recent rapid development in wireless communication, all mobile communications system or network are now operating with more than one frequency band; an example is the wireless local area network (WLAN) that is designed for three modes operation in the 2.4/5.2/5.8 GHz bands. Within all the antennas design for such network, the planar inverted-F antenna (PIFA) design is considered to be one of the most prominent candidates employed commonly by the industry. From the open-literature, in depth studies on improving the impedance bandwidth [1], and the effects of ground plane size on PIFA performance [2] are discussed in detail. To achieve dual band operation on a traditional PIFA, conventional methods such as slot loading the top radiating element [3] is recommended, and if a further size-reduction is required, folding the top radiating element is also proposed [4]. Although the combination of both slot loading and folding techniques as demonstrated in [5] have a wideband operation (4.85 to 11.5 GHz) which allows 5.2/5.8 GHz WLAN and Satellite Communication (8.175 to 10 GHz) operations, however, it is unable to operate at the basic 2.4 GHz WLAN band. Furthermore, even though a multi-band operation is demonstrated by applying the combined techniques [6], its quad-band operation (GSM, DCS, 2.4/5.2 GHz WLAN) can only be achieved by loading three U-shaped slots onto the top radiating element, with the absent of 5.8 GHz WLAN band.

In this paper we present the results of surface temperature control of silicon nanowires by using fluorescent thermometry at the nanometer scale. Rhodamine B is one of the stable fluorescent molecules, which rely on the characteristic of temperature-dependent change in fluorescent intensity, and it was used for nano-scale surface temperature sensing interface. The resistive heating on Si nanowires was carried out with applying voltage potential of 6 ~ 12 V. Surface-temperature measurement was performed by converting the changes in fluorescent intensity with calibration curve of Rhodamine B. The temperature at the central line along nanowires increasing from 30 degrees to 35~70 degrees was observed.

The role of Helicobacter pylori in the pathogenesis of peptic ulcer disease in patients with uraemia remains unclear.To evaluate the long-term effect of H. pylori eradication in these patients.Uraemic and non-uraemic patients with peptic ulcer were enrolled in this study. Patients having history of non-steroidal anti-inflammatory drugs use or cardiovascular disease that need aspirin use were excluded. After confirmation of H. pylori infection, they received a triple therapy and were followed up for 2 years.Between September 1999 and December 2005, 34 patients (41%) of the end-stage renal disease [H. pylori (+) group] and 67 (84%) of the non-uraemic patients with peptic ulcer disease (PU group) received anti-H. pylori therapy. After triple therapy, 32 (94%) from the end-stage renal disease group and 64 (96%) from the peptic ulcer group obtained successful eradication. During the 2-year follow-up, three patients in the end-stage renal disease group were excluded because of the presence of cardiovascular disease and aspirin use in two cases and died of heart failure in one case; two patients in peptic ulcer group refused follow-up. Finally, 29 uraemic and 62 non-uraemic patients had achieved the follow-up. Recurrence of peptic ulcer was more in the end-stage renal disease group than in the peptic ulcer group with intention-to-treat analysis (eight of 32, 25% vs. two of 64, 3%, P = 0.001, OR: 10.0, 95% CI: 1.979-50.540) or per-protocol analysis (eight of 29, 28% vs. two of 62, 3%, P0.001, OR: 11.4, 95% CI: 2.245-58.168).Peptic ulcer recurrence after H. pylori eradication is higher in end-stage renal disease patients with peptic ulcer than in peptic ulcer patients without renal disease. Factors aside from H. pylori play an important role in peptic ulcer recurrence in end-stage renal disease patients.

Objective: To describe the emergency department (ED) management of isolated mild traumatic brain injury (TBI) in the USA and to examine variation in care across age and insurance types. Methods: A secondary analysis of ED visits for isolated mild TBI in the National Hospital Ambulatory Medical Care Survey 1998–2000 was performed. Mild TBI was defined by International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9) codes for skull fracture, concussion, intracranial injury (unspecified), and head injury (unspecified). Available ED care variables were analysed by patient age and insurance categories using multivariate logistic regression. Results: The incidence of isolated mild TBI cases attending ED was 153 296 per year, or 56.4/100 000 people. Of the patients with isolated mild TBI, 44.3% underwent computed tomography, 23.9% underwent other non-extremity, non-chest x rays, 17.1% received wound care and 14.1% received intravenous fluids. However, only 43.8% had an assessment of pain. Of those with documented pain, only 45.5% received analgesics in the ED. Nearly 38% were discharged without recommendations for specific follow up. Several aspects of ED care varied by age but not by insurance type. Conclusion: Substantial ED resources are devoted to the care of isolated mild TBI. The present study identified deficiencies in and variation around several important aspects of ED care. The development of guidelines specific for mild TBI could reduce variation and improve emergency care for this injury.

In several applications, such as electron beam lithography and X-ray differential phase contrast imaging, there is a need for a free electron source with a current density at least 10 A/cm2 yet can be shaped with a resolution down to 20 nm and pulsed. Additional requirements are that the source must operate in a practical demountable vacuum (>1e-9 Torr) and be reasonably compact. In prior work, a photocathode comprising a film of CsBr on metal film on a sapphire substrate met the requirements except it was bulky because it required a beam (>10 W/cm2) of 257 nm radiation. Here, we describe an approach using a 405 nm laser which is far less bulky. The 405 nm laser, however, is not energetic enough to create color centers in CsBr films. The key to our approach is to bombard the CsBr film with a flood beam of about 1 keV electrons prior to operation. Photoelectron efficiencies in the range of 100–1000 nA/mW were demonstrated with lifetimes exceeding 50 h between electron bombardments. We suspect that the electron bombardment creates intraband color centers whence electrons can be excited by the 405 nm photons into the conduction band and thence into the vacuum.

Emphysematous pyelonephritis in renal transplant allograft occurs rarely. This is a case report on a 55-year-old man who had renal transplantation in 1983 and developed post-transplant diabetes mellitus in 1984. This patient suffered from fever and right low abdominal pain and was subsequently diagnosed as emphysematous pyelonephritis by computerized tomography. He was successfully treated with percutaneous drainage, percutaneous nephrostomy and parenteral antibiotics. Although the management of emphysematous pyelonephritis has been a subject of controversy, we recommend consideration of renal preservation in patients with few risk factors, especially in those patients presenting with chronic renal insufficiency, solitary kidney and transplant allograft.

In our previous work, we first propose the Au/AuBe is a good ohmic contact material to p-type ZnTe. After apply the material to II-VI light emitting diode, the operation voltage as low as 2.4V can be observed. The II-VI blue light emitting diode (LED) were grown in a RIBER 32P system with Zn(6N), Se(6N), Te(6N), Cd(6N) on (001) GaAs+ substrate. The structure consisted of a GaAs:Si(n+) buffer layer, ZnSe:C1 (0.5um), ZnSe(200A)/ZnCdSe (100A) multiple quantum well, ZnSe(200A), ZnSe:N(0.3um), ZnSe:N/ZnTe:N multilayer and ZnTe:N (300A). Standard photolithography technology was doen to fabricate the diode. The mesa etch was done by (formula available in paper) etching solution. The p-type ohmic was done by AuBe/Au metal. The emission wavelength was 530nm (room temperature) and 495 (30K) with 2.4V under CW operation. Since low operation voltage introduced less heat in the device, better thermal behavior can be expected with this low operation voltage.

The last few years have been a period of transition not only for hospitals and their governance but also for post-graduate medical education in Hong Kong. Both trends have a direct impact on the information market place. This article starts by studying the provision of medical and health-related information in Hong Kong. The two university medical and dental libraries, together with the hospital and health sciences libraries in government hospitals and the Department of Health, house the major collections on medicine and health care. The demand for medical and health care information is increasingly felt with the takeover of 39 hospitals by the statutory Hong Kong Hospital Authority in 1991. The major problems and issues in planning for library information services are the historically uneven development of libraries, discrepancies in funding, the changes in organizational and management structure, and the competition with higher development priorities within the organization. In view of current technology and the availability of rich external resources, the adopted strategies tend towards the formation of 10 library service networks, development of integrated library information systems on the Health Authority-wide area network, and the devolution of management responsibilities. The future challenges in store for the information professional are examined.

A laser opening technique is employed as the photolithography process to form selective emitter (SE) structures on multi-crystalline silicon (mc-Si) substrates for the large-area (156 × 156 × mm 2 ) solar-cell industry. The best efficiency of 16.35% is obtained with the developed SE structure after a damage removal process with optimisation of heavily and lightly doped dopants, which yields a gain of 0.88% absolute compared with that of a reference cell. Significantly, the SE mc-Si solar cell without the damage removal process can also reach a gain of 0.48% absolute. The developed SE process has simplicity, reliability, is fast, cost-effective, and could be effectively applied to mass production in industrial applications.

Magnetic properties and microstructure of directly quenched Nd9.5Fe72.5Ti3−xMxB15 (M=Nb and Zr; x=0–3) bulk magnets in rod form with a diameter of 0.9 mm have been studied. Proper Nb or Zr substitution for Ti has been found to well modify phase constitution and to refine the grain size from 200 to 50–100 nm effectively. Accordingly, the magnetic properties of the rods are enhanced remarkably from Hic=6.2 kOe and (BH)max=5.6 MG Oe for Nd9.5Fe72.5Ti3B15 to Hic=6.7–15.4 kOe and (BH)max=6.0–8.2 MG Oe for Nd9.5Fe72.5Ti3−xMxB15. The optimum magnetic properties of Br=6.6 kG, Hic=9.6 kOe, and (BH)max=8.2 MG Oe can be achieved for Nd9.5Fe72.5Ti2.5Zr0.5B15 alloy, while the highest coercivity of Hic=15.4 kOe [Br=5.9 kG and (BH)max=7.0 MG Oe] is obtained for Nd9.5Fe72.5Nb3B15. Their high permanent magnetic property arises mainly from the existence of a large volume fraction of 2:14:1 phase, finer grain size, and the existence of grain boundary phase.

A novel, relatively simple and cost effective method is reported to fabricate suspended silicon nanowires. This method allows for the production of suspended silicon nanowires using anisotropic wet etching and thermal oxidation of single crystalline silicon. The dimensions of the silicon nanowires fabricated with the proposed method are evaluated. The vibration properties of the nanowires obtained by heterodyne laser doppler interferometer show the potential of being nanomechanical sensors.

A miniaturised broadside coupled-line coupler is presented. The coupler is fabricated on a six-layered printed circuit board and consists of a 90° coupled slow-wave artificial transmission line section. Compared with previous works on printed circuit boards, the proposed design features the smallest occupied size. It also demonstrates a comparable operating bandwidth of 85%. The design concept, methodology and results are investigated.

6554 Background: CT7 (MAGE-C1) is a member of the Cancer-Testis (CT) family of tumor-associated antigens. CT antigen-based vaccines are currently under investigation in clinical trials. It has prev...

The pionic x-ray energies of the $4f\ensuremath{-}3d$ transition in $\ensuremath{\pi}$-P and the $5f\ensuremath{-}4d$ transition in $\ensuremath{\pi}$-Ti were measured with a bent-crystal spectrometer at the Nevis synchrocyclotron; and a new value of the pionic mass is deduced to be 139 567.5\ifmmode\pm\else\textpm\fi{}0.9 keV, leading to an improved value for the $\ensuremath{\mu}$-neutrino mass of ${{m}_{{\ensuremath{\nu}}_{\ensuremath{\mu}}}}^{2}$=0.102\ifmmode\pm\else\textpm\fi{}0.119 ${\mathrm{MeV}}^{2}$; ${m}_{{\ensuremath{\nu}}_{\ensuremath{\mu}}}l0.52$ MeV, at 90% confidence level.

A newly designed, large-aperture and high-resolution bent-crystal spectrometer has been used to observe high-intensity sources of pionic x rays. The pionic x-ray source was a target of natural titanium which was placed adjacent to a copper pion-production target in the external beam of the Nevis synchrocyclotron. The energy difference between the 5g ..-->.. 4f and 5f ..-->.. 4d transitions in pionic titanium was measured to be 87.6 +- 1.8 eV. Comparison with the prediction of the Klein-Gordon equation is made.

Thirteen pregnancies in 11 women previously treated with cytotoxic chemotherapy for GTD were studied. There were 11 live full-term babies (84.6%), 2 blighted ova (15.4%), 1 placenta accreta (7.7%) and 1 fetal anomaly (7.7%). Unlike other series, 69% of the pregnancies occurred within 1 year after the termination of chemotherapy. The rate of successful pregnancy was not different from that reported by others. Prenatal elimination of abnormal embryos after conception rather than wastage of damaged oocyte before conception might explain this observed low incidence of abnormal birth in GTD patients treated with cytotoxic chemotherapy.

A resonance neutron tomography project was carried out at the National Bureau of Standards which included (1) the construction of the reactor-based resonance neutron safeguards experimental system and the making of provisions for its use, and (2) the initial tomographic construction of a nuclear waste container.

Thirteen pregnancies in 11 women previously treated with cytotoxic chemotherapy for GTD were studied. There were 11 live full-term babies (84.6%), 2 blighted ova (15.4%), 1 placenta accreta (7.7%) and 1 fetal anomaly (7.7%). Unlike other series, 69% of the pregnancies occurred within 1 year after the termination of chemotherapy. The rate of successful pregnancy was not different from that reported by others. Prenatal elimination of abnormal embryos after conception rather than wastage of damaged oocyte before conception might explain this observed low incidence of abnormal birth in GTD patients treated with cytotoxic chemotherapy.