Catalytic enantioselective allyl-allyl cross-coupling of a borylated allylboronate reagent gives ... more Catalytic enantioselective allyl-allyl cross-coupling of a borylated allylboronate reagent gives versatile borylated chiral 1,5-hexadienes. These compounds may be manipulated in a number of useful ways to give functionalized chiral building blocks for asymmetric synthesis.
Object Despite increasing numbers of patients with adult spinal deformity, it is unclear how to s... more Object Despite increasing numbers of patients with adult spinal deformity, it is unclear how to select the optimal upper instrumented vertebra (UIV) in long fusion surgery for these patients. The purpose of this study was to compare the use of vertebrae in the upper thoracic (UT) versus lower thoracic (LT) spine as the upper instrumented vertebra in long fusion surgery for adult spinal deformity. Methods Patients who underwent fusion from the sacrum to the thoracic spine for adult spinal deformity with sagittal imbalance at a single medical center were studied. The patients with a sagittal vertical axis (SVA) ≥ 40 mm who had radiographs and completed the 12-item Short-Form Health Survey (SF-12) preoperatively and at final follow-up (≥ 2 years postoperatively) were included. Results Eighty patients (mean age of 61.1 ± 10.9 years; 69 women and 11 men) met the inclusion criteria. There were 31 patients in the UT group and 49 patients in the LT group. The mean follow-up period was 3.6 ±...
Object Long-segment spinal instrumentation ending at the sacrum places substantial biomechanical ... more Object Long-segment spinal instrumentation ending at the sacrum places substantial biomechanical stress on sacral screws. Iliac (pelvic) screws relieve some of this stress by supplementing the caudal fixation. It remains an open question whether there is any clinically significant difference in sacropelvic fixation with bilateral versus unilateral iliac screws. The primary purpose of this study was to compare clinical and radiographic complications in the use of bilateral versus unilateral iliac screw fixation. Methods The authors retrospectively reviewed 102 consecutive spinal fixation cases that extended to the pelvis at a single institution (University of California, San Francisco) in the period from 2005 to 2012 performed by the senior authors. Charts were reviewed for the following complications: reoperation, L5–S1 pseudarthrosis, sacral insufficiency fracture, hardware prominence, iliac screw loosening, and infection. The t-test, Pearson chi-square test, and Fisher exact test ...
Object There are little data on the effects of plated, or plate-only, open-door laminoplasty on c... more Object There are little data on the effects of plated, or plate-only, open-door laminoplasty on cervical range of motion (ROM), neck pain, and clinical outcomes. The purpose of this study was to compare ROM after a plated laminoplasty in patients with ossification of posterior longitudinal ligament (OPLL) versus those with cervical spondylotic myelopathy (CSM) and to correlate ROM with postoperative neck pain and neurological outcomes. Methods The authors retrospectively compared patients with a diagnosis of cervical stenosis due to either OPLL or CSM who had been treated with plated laminoplasty in the period from 2007 to 2012 at the University of California, San Francisco. Clinical outcomes were measured using the modified Japanese Orthopaedic Association (mJOA) scale and neck visual analog scale (VAS). Radiographic outcomes included assessment of changes in the C2–7 Cobb angle at flexion and extension, ROM at C2–7, and ROM of proximal and distal segments adjacent to the plated la...
Association rule hiding has been playing a vital role in sensitive knowledge preservation when sh... more Association rule hiding has been playing a vital role in sensitive knowledge preservation when sharing data between enterprises. The aim of association rule hiding is to remove sensitive association rules from the released database such that side effects are reduced as low as possible. This research proposes an efficient algorithm for hiding a specified set of sensitive association rules based on intersection lattice of frequent itemsets. In this research, we begin by analyzing the theory of the intersection lattice of frequent itemsets and the applicability of this theory into association rule hiding problem. We then formulate two heuristics in order to (a) specify the victim items based on the characteristics of the intersection lattice of frequent itemsets and (b) identify transactions for data sanitization based on the weight of transactions. Next, we propose a new algorithm for hiding a specific set of sensitive association rules with minimum side effects and low complexity. Fi...
Asia Pacific Conference on Postgraduate Research in Microelectronics & Electronics, 2009
This paper presents the design and optimisation of a very high quality (Q) factor inductor using ... more This paper presents the design and optimisation of a very high quality (Q) factor inductor using MEMS technology for 10 GHz to 20 GHz frequency band. The effects of various parameters of a symmetric inductor structure on the Q-factor and inductance are thoroughly analysed. The inductor has been designed on silicon-on-sapphire (SOS) substrate because it offers superior characteristics of low
Journal of the American Academy of Dermatology, Volume 65, Issue 3, Pages 684-686, September 2011... more Journal of the American Academy of Dermatology, Volume 65, Issue 3, Pages 684-686, September 2011, Authors:Sergei A. Grando, MD, PhD, DSc; Vivian T. Laquer, MD; Hai M. Le, MD.
The Pd-catalyzed cross-coupling of racemic tertiary allylic carbonates and allylboronates is desc... more The Pd-catalyzed cross-coupling of racemic tertiary allylic carbonates and allylboronates is described. This reaction generates all-carbon quaternary centers in a highly regioselective and enantioselective fashion. The outcome of these reactions is consistent with a process ...
... The second can be done by developing good quality Vietnamese word segmentation and using dict... more ... The second can be done by developing good quality Vietnamese word segmentation and using dictionaries of experts thus can affect data analysis and retrieval. Without a large-scale quality Vietnamese corpus, the last is hard to close. ...
Abstract An ultra-low-power variable-resolution successive approximation analogue-to-digital conv... more Abstract An ultra-low-power variable-resolution successive approximation analogue-to-digital converter (ADC) is presented. A novel binary search algorithm architecture is proposed to replace the conventional digital-to-analogue converter to significantly reduce ...
The next generation Wireless Personal Area Network and Wireless Sensor Network applications deman... more The next generation Wireless Personal Area Network and Wireless Sensor Network applications demand portability and ultra low power operation. Ultra Wideband communication has the potential to achieve these requirements due to possibility of digital implementation. The mostly digital UWB radio is designed to cope up with worst case channel condition and uses heavy parallelism in the digital backend leading to
Performance analysis of high-accuracy CMOS sample-and-hold circuits. [Proceedings of SPIE 5274, 2... more Performance analysis of high-accuracy CMOS sample-and-hold circuits. [Proceedings of SPIE 5274, 269 (2004)]. Hai P. Le, Aladin Zayegh, Jugdutt Singh. Abstract. This paper presents the performance analysis of different high ...
Flap pre-fabrication represents an interesting technique in tissue-defect reconstruction. In this... more Flap pre-fabrication represents an interesting technique in tissue-defect reconstruction. In this article we report the successful clinical application of a free pre-fabricated flap using an isolated arterialised venous loop as an implanted vascular pedicle for reconstruction of an extended soft-tissue defect on the leg, as well as clinical neo-vascularisation development following arterialised venous loop implantation. The procedure appears potentially useful in selected patients due to the easy harvest of an isolated vein loop as well as a favourable functional and aesthetic result at the donor site.
Research report for the Ministry of Labour, War …, 2007
1 Construction of poverty map for the HCM city in Vietnam using the 2004 VHLSS and the 2004 HCM M... more 1 Construction of poverty map for the HCM city in Vietnam using the 2004 VHLSS and the 2004 HCM Mid-Census Nguyen Viet Cuong Roy van der Weide Le Hai Tran Ngoc Truong 1 Abstract The research estimates the poverty rate for the districts in the Ho Chi Minh city in ...
Catalytic enantioselective allyl-allyl cross-coupling of a borylated allylboronate reagent gives ... more Catalytic enantioselective allyl-allyl cross-coupling of a borylated allylboronate reagent gives versatile borylated chiral 1,5-hexadienes. These compounds may be manipulated in a number of useful ways to give functionalized chiral building blocks for asymmetric synthesis.
Object Despite increasing numbers of patients with adult spinal deformity, it is unclear how to s... more Object Despite increasing numbers of patients with adult spinal deformity, it is unclear how to select the optimal upper instrumented vertebra (UIV) in long fusion surgery for these patients. The purpose of this study was to compare the use of vertebrae in the upper thoracic (UT) versus lower thoracic (LT) spine as the upper instrumented vertebra in long fusion surgery for adult spinal deformity. Methods Patients who underwent fusion from the sacrum to the thoracic spine for adult spinal deformity with sagittal imbalance at a single medical center were studied. The patients with a sagittal vertical axis (SVA) ≥ 40 mm who had radiographs and completed the 12-item Short-Form Health Survey (SF-12) preoperatively and at final follow-up (≥ 2 years postoperatively) were included. Results Eighty patients (mean age of 61.1 ± 10.9 years; 69 women and 11 men) met the inclusion criteria. There were 31 patients in the UT group and 49 patients in the LT group. The mean follow-up period was 3.6 ±...
Object Long-segment spinal instrumentation ending at the sacrum places substantial biomechanical ... more Object Long-segment spinal instrumentation ending at the sacrum places substantial biomechanical stress on sacral screws. Iliac (pelvic) screws relieve some of this stress by supplementing the caudal fixation. It remains an open question whether there is any clinically significant difference in sacropelvic fixation with bilateral versus unilateral iliac screws. The primary purpose of this study was to compare clinical and radiographic complications in the use of bilateral versus unilateral iliac screw fixation. Methods The authors retrospectively reviewed 102 consecutive spinal fixation cases that extended to the pelvis at a single institution (University of California, San Francisco) in the period from 2005 to 2012 performed by the senior authors. Charts were reviewed for the following complications: reoperation, L5–S1 pseudarthrosis, sacral insufficiency fracture, hardware prominence, iliac screw loosening, and infection. The t-test, Pearson chi-square test, and Fisher exact test ...
Object There are little data on the effects of plated, or plate-only, open-door laminoplasty on c... more Object There are little data on the effects of plated, or plate-only, open-door laminoplasty on cervical range of motion (ROM), neck pain, and clinical outcomes. The purpose of this study was to compare ROM after a plated laminoplasty in patients with ossification of posterior longitudinal ligament (OPLL) versus those with cervical spondylotic myelopathy (CSM) and to correlate ROM with postoperative neck pain and neurological outcomes. Methods The authors retrospectively compared patients with a diagnosis of cervical stenosis due to either OPLL or CSM who had been treated with plated laminoplasty in the period from 2007 to 2012 at the University of California, San Francisco. Clinical outcomes were measured using the modified Japanese Orthopaedic Association (mJOA) scale and neck visual analog scale (VAS). Radiographic outcomes included assessment of changes in the C2–7 Cobb angle at flexion and extension, ROM at C2–7, and ROM of proximal and distal segments adjacent to the plated la...
Association rule hiding has been playing a vital role in sensitive knowledge preservation when sh... more Association rule hiding has been playing a vital role in sensitive knowledge preservation when sharing data between enterprises. The aim of association rule hiding is to remove sensitive association rules from the released database such that side effects are reduced as low as possible. This research proposes an efficient algorithm for hiding a specified set of sensitive association rules based on intersection lattice of frequent itemsets. In this research, we begin by analyzing the theory of the intersection lattice of frequent itemsets and the applicability of this theory into association rule hiding problem. We then formulate two heuristics in order to (a) specify the victim items based on the characteristics of the intersection lattice of frequent itemsets and (b) identify transactions for data sanitization based on the weight of transactions. Next, we propose a new algorithm for hiding a specific set of sensitive association rules with minimum side effects and low complexity. Fi...
Asia Pacific Conference on Postgraduate Research in Microelectronics & Electronics, 2009
This paper presents the design and optimisation of a very high quality (Q) factor inductor using ... more This paper presents the design and optimisation of a very high quality (Q) factor inductor using MEMS technology for 10 GHz to 20 GHz frequency band. The effects of various parameters of a symmetric inductor structure on the Q-factor and inductance are thoroughly analysed. The inductor has been designed on silicon-on-sapphire (SOS) substrate because it offers superior characteristics of low
Journal of the American Academy of Dermatology, Volume 65, Issue 3, Pages 684-686, September 2011... more Journal of the American Academy of Dermatology, Volume 65, Issue 3, Pages 684-686, September 2011, Authors:Sergei A. Grando, MD, PhD, DSc; Vivian T. Laquer, MD; Hai M. Le, MD.
The Pd-catalyzed cross-coupling of racemic tertiary allylic carbonates and allylboronates is desc... more The Pd-catalyzed cross-coupling of racemic tertiary allylic carbonates and allylboronates is described. This reaction generates all-carbon quaternary centers in a highly regioselective and enantioselective fashion. The outcome of these reactions is consistent with a process ...
... The second can be done by developing good quality Vietnamese word segmentation and using dict... more ... The second can be done by developing good quality Vietnamese word segmentation and using dictionaries of experts thus can affect data analysis and retrieval. Without a large-scale quality Vietnamese corpus, the last is hard to close. ...
Abstract An ultra-low-power variable-resolution successive approximation analogue-to-digital conv... more Abstract An ultra-low-power variable-resolution successive approximation analogue-to-digital converter (ADC) is presented. A novel binary search algorithm architecture is proposed to replace the conventional digital-to-analogue converter to significantly reduce ...
The next generation Wireless Personal Area Network and Wireless Sensor Network applications deman... more The next generation Wireless Personal Area Network and Wireless Sensor Network applications demand portability and ultra low power operation. Ultra Wideband communication has the potential to achieve these requirements due to possibility of digital implementation. The mostly digital UWB radio is designed to cope up with worst case channel condition and uses heavy parallelism in the digital backend leading to
Performance analysis of high-accuracy CMOS sample-and-hold circuits. [Proceedings of SPIE 5274, 2... more Performance analysis of high-accuracy CMOS sample-and-hold circuits. [Proceedings of SPIE 5274, 269 (2004)]. Hai P. Le, Aladin Zayegh, Jugdutt Singh. Abstract. This paper presents the performance analysis of different high ...
Flap pre-fabrication represents an interesting technique in tissue-defect reconstruction. In this... more Flap pre-fabrication represents an interesting technique in tissue-defect reconstruction. In this article we report the successful clinical application of a free pre-fabricated flap using an isolated arterialised venous loop as an implanted vascular pedicle for reconstruction of an extended soft-tissue defect on the leg, as well as clinical neo-vascularisation development following arterialised venous loop implantation. The procedure appears potentially useful in selected patients due to the easy harvest of an isolated vein loop as well as a favourable functional and aesthetic result at the donor site.
Research report for the Ministry of Labour, War …, 2007
1 Construction of poverty map for the HCM city in Vietnam using the 2004 VHLSS and the 2004 HCM M... more 1 Construction of poverty map for the HCM city in Vietnam using the 2004 VHLSS and the 2004 HCM Mid-Census Nguyen Viet Cuong Roy van der Weide Le Hai Tran Ngoc Truong 1 Abstract The research estimates the poverty rate for the districts in the Ho Chi Minh city in ...
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