Hoo Wo - Academia.edu (original) (raw)

Papers by Hoo Wo

Journal of Materials Science-materials in Electronics, 2001

The characteristics of electrochromic films (WO3, V2O5) prepared by sol-gel-spin coating and a va... more The characteristics of electrochromic films (WO3, V2O5) prepared by sol-gel-spin coating and a vacuum evaporation process were compared to identify a new application of an electrochromic display. Polypyrrole films were prepared by electropolymerization in a pyrrole solution, acetonitrile, and TEPS (tetraethylammonium p-toluenesulfonate). The liquid electrolyte was prepared using LiClO4, propylene carbonate, polymethylmetacrylate, and ethyl acetate. The optical modulation of the electrochromic device was measured as the LiClO4: PMMA weight ratio changed from 10:3 to 10:5. The highest optical modulation value was when the LiClO4: PMMA weight ratio was 10:4. Each type of film was analyzed using a four-point probe, a differential scanning calorimeter (DSC), an X-ray diffractometer (XRD), and a UV-vis spectrophotometer (DR/4000H). The ESCA spectra of the WO3 films showed that the tungsten oxidation number decreased in a coloration state. © 2001 Kluwer Academic Publishers

Journal of Pharmaceutical and Biomedical Analysis, 2008

A new herbal health product marketed for enhancing erectile function, namely Power58 Platinum, wa... more A new herbal health product marketed for enhancing erectile function, namely Power58 Platinum, was purchased over-the-counter in Hong Kong. The product was tested for adulteration with sildenafil, tadalafil, and vardenafil as well as their structurally modified analogues. A new analogue of vardenafil, in which the N-ethylpiperazine ring and the sulphonyl group were removed from the vardenafil structure, was identified in the product.

To esti mat e t he eff ect of t he wave2dependent drag coefficient o n t he si mulatio n of sto r... more To esti mat e t he eff ect of t he wave2dependent drag coefficient o n t he si mulatio n of sto r m cur rent i nduced by t yp hoo n Fait h 1998 , t wo numerical si mulatio n cases , wit h and wit ho ut co nsideri ng t he wave2 dependent drag

A Frobenius manifold is a complex manifold with a multiplication and a metric on the holomorphic ... more A Frobenius manifold is a complex manifold with a multiplication and a metric on the holomorphic tangent bundle and two distinguished vector fields, satisfying a series of natural conditions.

Psychiatric Quarterly, 1966

Literary greatness cannot be measured witch a scientific yardstick, and judgment in the field of ... more Literary greatness cannot be measured witch a scientific yardstick, and judgment in the field of aesthetics will probably always be formed on a subjective basis. Survival by admiration appears to remain ,as o,ne o~ tshe best indicators o~ artistic value. We shnp,ly witness the mir~acle that the human mind is ca~,able of creating s,omet!hing so timeless and universal, that sucveedin'g generations sp'are no egort in the seaxch for new meaning and identification. The literary masterpiece is an inexhaustible source of emotional experience and aesthetic satisfaction. This may serve as reason for tt~e adventurous attempt to illuminate the r of Hamlet veith the views o,f a new trend that ~s gainhlg strength and influene:e in c~ontemForpary ph~lo,s[o,phi~al and psychi'atric tho,ught.

A new app roach to adap tive f uzzy co nt rol was p ropo sed to efficiently eli mi nat e uncer2 t... more A new app roach to adap tive f uzzy co nt rol was p ropo sed to efficiently eli mi nat e uncer2 t ai nties i n co nt rolled syst ems , i n which f uzzy lo gical syst ems ( FL S) were utilized to identif y un2 known f unctio ns i n t he

Journal of Clinical Psychology in Medical Settings, 2010

The quality of physician–patient interaction is increasingly being recognized as an essential com... more The quality of physician–patient interaction is increasingly being recognized as an essential component of effective treatment. The present article reports on the development and validation of a brief patient self-report questionnaire (QQPPI) that assesses the quality of physician–patient interactions. Data were gathered from 147 patients and 19 physicians immediately after consultations in a tertiary care outpatient setting. The QQPPI displayed good psychometric properties, with high internal consistency and good item characteristics. The QQPPI total score showed variability between different physicians and was independent of patients’ gender, age, and education. The QQPPI featured high correlations with other quality-related measures and was not influenced by social desirability, or patients’ clinical characteristics. The QQPPI is a brief patient self-report questionnaire that allows assessment of the quality of physician–patient interactions during routine ambulatory care. It can also be used to evaluate physician communication training programs or for educational purposes.

Journal of Molecular Biology, 2000

Importin-a is the nuclear import receptor that recognizes cargo proteins which contain classical ... more Importin-a is the nuclear import receptor that recognizes cargo proteins which contain classical monopartite and bipartite nuclear localization sequences (NLSs), and facilitates their transport into the nucleus. To determine the structural basis of the recognition of the two classes of NLSs by mammalian importin-a, we co-crystallized an N-terminally truncated mouse receptor protein with peptides corresponding to the monopartite NLS from the simian virus 40 (SV40) large T-antigen, and the bipartite NLS from nucleoplasmin. We show that the monopartite SV40 large T-antigen NLS binds to two binding sites on the receptor, similar to what was observed in yeast importin-a. The nucleoplasmin NLS-importin-a complex shows, for the ®rst time, the mode of binding of bipartite NLSs to the receptor. The two basic clusters in the NLS occupy the two binding sites used by the monopartite NLS, while the sequence linking the two basic clusters is poorly ordered, consistent with its tolerance to mutations. The structures explain the structural basis for binding of diverse NLSs to the sole receptor protein. Abbreviations used: Arm repeats, armadillo repeats; Impa(70-529), importin-a lacking the N-terminal 69 residues; NLS, nuclear localization sequence; NPC, nuclear pore complex; SV40, simian virus 40; SV40 NLS, peptide 126 PKKKRKV 132 corresponding to the NLS of the SV40 large T-antigen; nucleoplasmin NLS, peptide 155 KRPAATKKAGQAKKKK 170 corresponding to the NLS of nucleoplasmin.

Ceramics International

Thin films of tungsten-doped vanadium oxide were fabricated on an alumina substrate by spin coati... more Thin films of tungsten-doped vanadium oxide were fabricated on an alumina substrate by spin coating technology. A V 2 O 5 solution was prepared by an inorganic sol-gel method, which was a fairly cheap and effective process. As-coated V 2 O 5 films turned to VO 2 films during heat treatment in a reducing gas flow. Non-doped VO 2 film exhibited the best switching property of 4.0 orders of magnitude of electrical resistance and a small hysteresis of approximately 5 8C width. Tungsten in VO 2 led to a diffuse phase transition and weak jump of electrical resistivity. A reduction of the transition temperature by 15.5 8C/mol was observed for the tungsten doping in this study. #